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x86: Define GNU_PROPERTY_X86_ISA_1_AVX512_BF16
[deliverable/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002-2019 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/frv.h"
26 #include "dwarf2.h"
27 #include "hashtab.h"
28 #include "libiberty.h"
29
30 /* Forward declarations. */
31
32
33 static reloc_howto_type elf32_frv_howto_table [] =
34 {
35 /* This reloc does nothing. */
36 HOWTO (R_FRV_NONE, /* type */
37 0, /* rightshift */
38 3, /* size (0 = byte, 1 = short, 2 = long) */
39 0, /* bitsize */
40 FALSE, /* pc_relative */
41 0, /* bitpos */
42 complain_overflow_dont, /* complain_on_overflow */
43 bfd_elf_generic_reloc, /* special_function */
44 "R_FRV_NONE", /* name */
45 FALSE, /* partial_inplace */
46 0, /* src_mask */
47 0, /* dst_mask */
48 FALSE), /* pcrel_offset */
49
50 /* A 32 bit absolute relocation. */
51 HOWTO (R_FRV_32, /* type */
52 0, /* rightshift */
53 2, /* size (0 = byte, 1 = short, 2 = long) */
54 32, /* bitsize */
55 FALSE, /* pc_relative */
56 0, /* bitpos */
57 complain_overflow_bitfield, /* complain_on_overflow */
58 bfd_elf_generic_reloc, /* special_function */
59 "R_FRV_32", /* name */
60 FALSE, /* partial_inplace */
61 0xffffffff, /* src_mask */
62 0xffffffff, /* dst_mask */
63 FALSE), /* pcrel_offset */
64
65 /* A 16 bit pc-relative relocation. */
66 HOWTO (R_FRV_LABEL16, /* type */
67 2, /* rightshift */
68 2, /* size (0 = byte, 1 = short, 2 = long) */
69 16, /* bitsize */
70 TRUE, /* pc_relative */
71 0, /* bitpos */
72 complain_overflow_signed, /* complain_on_overflow */
73 bfd_elf_generic_reloc, /* special_function */
74 "R_FRV_LABEL16", /* name */
75 FALSE, /* partial_inplace */
76 0xffff, /* src_mask */
77 0xffff, /* dst_mask */
78 TRUE), /* pcrel_offset */
79
80 /* A 24-bit pc-relative relocation. */
81 HOWTO (R_FRV_LABEL24, /* type */
82 2, /* rightshift */
83 2, /* size (0 = byte, 1 = short, 2 = long) */
84 26, /* bitsize */
85 TRUE, /* pc_relative */
86 0, /* bitpos */
87 complain_overflow_bitfield, /* complain_on_overflow */
88 bfd_elf_generic_reloc, /* special_function */
89 "R_FRV_LABEL24", /* name */
90 FALSE, /* partial_inplace */
91 0x7e03ffff, /* src_mask */
92 0x7e03ffff, /* dst_mask */
93 TRUE), /* pcrel_offset */
94
95 HOWTO (R_FRV_LO16, /* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 16, /* bitsize */
99 FALSE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_FRV_LO16", /* name */
104 FALSE, /* partial_inplace */
105 0xffff, /* src_mask */
106 0xffff, /* dst_mask */
107 FALSE), /* pcrel_offset */
108
109 HOWTO (R_FRV_HI16, /* type */
110 0, /* rightshift */
111 2, /* size (0 = byte, 1 = short, 2 = long) */
112 16, /* bitsize */
113 FALSE, /* pc_relative */
114 0, /* bitpos */
115 complain_overflow_dont, /* complain_on_overflow */
116 bfd_elf_generic_reloc, /* special_function */
117 "R_FRV_HI16", /* name */
118 FALSE, /* partial_inplace */
119 0xffff, /* src_mask */
120 0xffff, /* dst_mask */
121 FALSE), /* pcrel_offset */
122
123 HOWTO (R_FRV_GPREL12, /* type */
124 0, /* rightshift */
125 2, /* size (0 = byte, 1 = short, 2 = long) */
126 12, /* bitsize */
127 FALSE, /* pc_relative */
128 0, /* bitpos */
129 complain_overflow_dont, /* complain_on_overflow */
130 bfd_elf_generic_reloc, /* special_function */
131 "R_FRV_GPREL12", /* name */
132 FALSE, /* partial_inplace */
133 0xfff, /* src_mask */
134 0xfff, /* dst_mask */
135 FALSE), /* pcrel_offset */
136
137 HOWTO (R_FRV_GPRELU12, /* type */
138 0, /* rightshift */
139 2, /* size (0 = byte, 1 = short, 2 = long) */
140 12, /* bitsize */
141 FALSE, /* pc_relative */
142 0, /* bitpos */
143 complain_overflow_dont, /* complain_on_overflow */
144 bfd_elf_generic_reloc, /* special_function */
145 "R_FRV_GPRELU12", /* name */
146 FALSE, /* partial_inplace */
147 0xfff, /* src_mask */
148 0x3f03f, /* dst_mask */
149 FALSE), /* pcrel_offset */
150
151 HOWTO (R_FRV_GPREL32, /* type */
152 0, /* rightshift */
153 2, /* size (0 = byte, 1 = short, 2 = long) */
154 32, /* bitsize */
155 FALSE, /* pc_relative */
156 0, /* bitpos */
157 complain_overflow_dont, /* complain_on_overflow */
158 bfd_elf_generic_reloc, /* special_function */
159 "R_FRV_GPREL32", /* name */
160 FALSE, /* partial_inplace */
161 0xffffffff, /* src_mask */
162 0xffffffff, /* dst_mask */
163 FALSE), /* pcrel_offset */
164
165 HOWTO (R_FRV_GPRELHI, /* type */
166 0, /* rightshift */
167 2, /* size (0 = byte, 1 = short, 2 = long) */
168 16, /* bitsize */
169 FALSE, /* pc_relative */
170 0, /* bitpos */
171 complain_overflow_dont, /* complain_on_overflow */
172 bfd_elf_generic_reloc, /* special_function */
173 "R_FRV_GPRELHI", /* name */
174 FALSE, /* partial_inplace */
175 0xffff, /* src_mask */
176 0xffff, /* dst_mask */
177 FALSE), /* pcrel_offset */
178
179 HOWTO (R_FRV_GPRELLO, /* type */
180 0, /* rightshift */
181 2, /* size (0 = byte, 1 = short, 2 = long) */
182 16, /* bitsize */
183 FALSE, /* pc_relative */
184 0, /* bitpos */
185 complain_overflow_dont, /* complain_on_overflow */
186 bfd_elf_generic_reloc, /* special_function */
187 "R_FRV_GPRELLO", /* name */
188 FALSE, /* partial_inplace */
189 0xffff, /* src_mask */
190 0xffff, /* dst_mask */
191 FALSE), /* pcrel_offset */
192
193 /* A 12-bit signed operand with the GOT offset for the address of
194 the symbol. */
195 HOWTO (R_FRV_GOT12, /* type */
196 0, /* rightshift */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
198 12, /* bitsize */
199 FALSE, /* pc_relative */
200 0, /* bitpos */
201 complain_overflow_signed, /* complain_on_overflow */
202 bfd_elf_generic_reloc, /* special_function */
203 "R_FRV_GOT12", /* name */
204 FALSE, /* partial_inplace */
205 0xfff, /* src_mask */
206 0xfff, /* dst_mask */
207 FALSE), /* pcrel_offset */
208
209 /* The upper 16 bits of the GOT offset for the address of the
210 symbol. */
211 HOWTO (R_FRV_GOTHI, /* type */
212 0, /* rightshift */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
214 16, /* bitsize */
215 FALSE, /* pc_relative */
216 0, /* bitpos */
217 complain_overflow_dont, /* complain_on_overflow */
218 bfd_elf_generic_reloc, /* special_function */
219 "R_FRV_GOTHI", /* name */
220 FALSE, /* partial_inplace */
221 0xffff, /* src_mask */
222 0xffff, /* dst_mask */
223 FALSE), /* pcrel_offset */
224
225 /* The lower 16 bits of the GOT offset for the address of the
226 symbol. */
227 HOWTO (R_FRV_GOTLO, /* type */
228 0, /* rightshift */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
230 16, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_FRV_GOTLO", /* name */
236 FALSE, /* partial_inplace */
237 0xffff, /* src_mask */
238 0xffff, /* dst_mask */
239 FALSE), /* pcrel_offset */
240
241 /* The 32-bit address of the canonical descriptor of a function. */
242 HOWTO (R_FRV_FUNCDESC, /* type */
243 0, /* rightshift */
244 2, /* size (0 = byte, 1 = short, 2 = long) */
245 32, /* bitsize */
246 FALSE, /* pc_relative */
247 0, /* bitpos */
248 complain_overflow_bitfield, /* complain_on_overflow */
249 bfd_elf_generic_reloc, /* special_function */
250 "R_FRV_FUNCDESC", /* name */
251 FALSE, /* partial_inplace */
252 0xffffffff, /* src_mask */
253 0xffffffff, /* dst_mask */
254 FALSE), /* pcrel_offset */
255
256 /* A 12-bit signed operand with the GOT offset for the address of
257 canonical descriptor of a function. */
258 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
259 0, /* rightshift */
260 2, /* size (0 = byte, 1 = short, 2 = long) */
261 12, /* bitsize */
262 FALSE, /* pc_relative */
263 0, /* bitpos */
264 complain_overflow_signed, /* complain_on_overflow */
265 bfd_elf_generic_reloc, /* special_function */
266 "R_FRV_FUNCDESC_GOT12", /* name */
267 FALSE, /* partial_inplace */
268 0xfff, /* src_mask */
269 0xfff, /* dst_mask */
270 FALSE), /* pcrel_offset */
271
272 /* The upper 16 bits of the GOT offset for the address of the
273 canonical descriptor of a function. */
274 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
275 0, /* rightshift */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
277 16, /* bitsize */
278 FALSE, /* pc_relative */
279 0, /* bitpos */
280 complain_overflow_dont, /* complain_on_overflow */
281 bfd_elf_generic_reloc, /* special_function */
282 "R_FRV_FUNCDESC_GOTHI", /* name */
283 FALSE, /* partial_inplace */
284 0xffff, /* src_mask */
285 0xffff, /* dst_mask */
286 FALSE), /* pcrel_offset */
287
288 /* The lower 16 bits of the GOT offset for the address of the
289 canonical descriptor of a function. */
290 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
291 0, /* rightshift */
292 2, /* size (0 = byte, 1 = short, 2 = long) */
293 16, /* bitsize */
294 FALSE, /* pc_relative */
295 0, /* bitpos */
296 complain_overflow_dont, /* complain_on_overflow */
297 bfd_elf_generic_reloc, /* special_function */
298 "R_FRV_FUNCDESC_GOTLO", /* name */
299 FALSE, /* partial_inplace */
300 0xffff, /* src_mask */
301 0xffff, /* dst_mask */
302 FALSE), /* pcrel_offset */
303
304 /* The 64-bit descriptor of a function. */
305 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
306 0, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 64, /* bitsize */
309 FALSE, /* pc_relative */
310 0, /* bitpos */
311 complain_overflow_bitfield, /* complain_on_overflow */
312 bfd_elf_generic_reloc, /* special_function */
313 "R_FRV_FUNCDESC_VALUE", /* name */
314 FALSE, /* partial_inplace */
315 0xffffffff, /* src_mask */
316 0xffffffff, /* dst_mask */
317 FALSE), /* pcrel_offset */
318
319 /* A 12-bit signed operand with the GOT offset for the address of
320 canonical descriptor of a function. */
321 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
322 0, /* rightshift */
323 2, /* size (0 = byte, 1 = short, 2 = long) */
324 12, /* bitsize */
325 FALSE, /* pc_relative */
326 0, /* bitpos */
327 complain_overflow_signed, /* complain_on_overflow */
328 bfd_elf_generic_reloc, /* special_function */
329 "R_FRV_FUNCDESC_GOTOFF12", /* name */
330 FALSE, /* partial_inplace */
331 0xfff, /* src_mask */
332 0xfff, /* dst_mask */
333 FALSE), /* pcrel_offset */
334
335 /* The upper 16 bits of the GOT offset for the address of the
336 canonical descriptor of a function. */
337 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
338 0, /* rightshift */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
340 16, /* bitsize */
341 FALSE, /* pc_relative */
342 0, /* bitpos */
343 complain_overflow_dont, /* complain_on_overflow */
344 bfd_elf_generic_reloc, /* special_function */
345 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
346 FALSE, /* partial_inplace */
347 0xffff, /* src_mask */
348 0xffff, /* dst_mask */
349 FALSE), /* pcrel_offset */
350
351 /* The lower 16 bits of the GOT offset for the address of the
352 canonical descriptor of a function. */
353 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
354 0, /* rightshift */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
356 16, /* bitsize */
357 FALSE, /* pc_relative */
358 0, /* bitpos */
359 complain_overflow_dont, /* complain_on_overflow */
360 bfd_elf_generic_reloc, /* special_function */
361 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
362 FALSE, /* partial_inplace */
363 0xffff, /* src_mask */
364 0xffff, /* dst_mask */
365 FALSE), /* pcrel_offset */
366
367 /* A 12-bit signed operand with the GOT offset for the address of
368 the symbol. */
369 HOWTO (R_FRV_GOTOFF12, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 12, /* bitsize */
373 FALSE, /* pc_relative */
374 0, /* bitpos */
375 complain_overflow_signed, /* complain_on_overflow */
376 bfd_elf_generic_reloc, /* special_function */
377 "R_FRV_GOTOFF12", /* name */
378 FALSE, /* partial_inplace */
379 0xfff, /* src_mask */
380 0xfff, /* dst_mask */
381 FALSE), /* pcrel_offset */
382
383 /* The upper 16 bits of the GOT offset for the address of the
384 symbol. */
385 HOWTO (R_FRV_GOTOFFHI, /* type */
386 0, /* rightshift */
387 2, /* size (0 = byte, 1 = short, 2 = long) */
388 16, /* bitsize */
389 FALSE, /* pc_relative */
390 0, /* bitpos */
391 complain_overflow_dont, /* complain_on_overflow */
392 bfd_elf_generic_reloc, /* special_function */
393 "R_FRV_GOTOFFHI", /* name */
394 FALSE, /* partial_inplace */
395 0xffff, /* src_mask */
396 0xffff, /* dst_mask */
397 FALSE), /* pcrel_offset */
398
399 /* The lower 16 bits of the GOT offset for the address of the
400 symbol. */
401 HOWTO (R_FRV_GOTOFFLO, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 0, /* bitpos */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_FRV_GOTOFFLO", /* name */
410 FALSE, /* partial_inplace */
411 0xffff, /* src_mask */
412 0xffff, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
416 a thread-local symbol. If the symbol number is 0, it refers to
417 the module. */
418 HOWTO (R_FRV_GETTLSOFF, /* type */
419 2, /* rightshift */
420 2, /* size (0 = byte, 1 = short, 2 = long) */
421 26, /* bitsize */
422 TRUE, /* pc_relative */
423 0, /* bitpos */
424 complain_overflow_bitfield, /* complain_on_overflow */
425 bfd_elf_generic_reloc, /* special_function */
426 "R_FRV_GETTLSOFF", /* name */
427 FALSE, /* partial_inplace */
428 0x7e03ffff, /* src_mask */
429 0x7e03ffff, /* dst_mask */
430 TRUE), /* pcrel_offset */
431
432 /* A 64-bit TLS descriptor for a symbol. This relocation is only
433 valid as a REL, dynamic relocation. */
434 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
435 0, /* rightshift */
436 2, /* size (0 = byte, 1 = short, 2 = long) */
437 64, /* bitsize */
438 FALSE, /* pc_relative */
439 0, /* bitpos */
440 complain_overflow_bitfield, /* complain_on_overflow */
441 bfd_elf_generic_reloc, /* special_function */
442 "R_FRV_TLSDESC_VALUE", /* name */
443 FALSE, /* partial_inplace */
444 0xffffffff, /* src_mask */
445 0xffffffff, /* dst_mask */
446 FALSE), /* pcrel_offset */
447
448 /* A 12-bit signed operand with the GOT offset for the TLS
449 descriptor of the symbol. */
450 HOWTO (R_FRV_GOTTLSDESC12, /* type */
451 0, /* rightshift */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
453 12, /* bitsize */
454 FALSE, /* pc_relative */
455 0, /* bitpos */
456 complain_overflow_signed, /* complain_on_overflow */
457 bfd_elf_generic_reloc, /* special_function */
458 "R_FRV_GOTTLSDESC12", /* name */
459 FALSE, /* partial_inplace */
460 0xfff, /* src_mask */
461 0xfff, /* dst_mask */
462 FALSE), /* pcrel_offset */
463
464 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
465 symbol. */
466 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
467 0, /* rightshift */
468 2, /* size (0 = byte, 1 = short, 2 = long) */
469 16, /* bitsize */
470 FALSE, /* pc_relative */
471 0, /* bitpos */
472 complain_overflow_dont, /* complain_on_overflow */
473 bfd_elf_generic_reloc, /* special_function */
474 "R_FRV_GOTTLSDESCHI", /* name */
475 FALSE, /* partial_inplace */
476 0xffff, /* src_mask */
477 0xffff, /* dst_mask */
478 FALSE), /* pcrel_offset */
479
480 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
481 symbol. */
482 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
483 0, /* rightshift */
484 2, /* size (0 = byte, 1 = short, 2 = long) */
485 16, /* bitsize */
486 FALSE, /* pc_relative */
487 0, /* bitpos */
488 complain_overflow_dont, /* complain_on_overflow */
489 bfd_elf_generic_reloc, /* special_function */
490 "R_FRV_GOTTLSDESCLO", /* name */
491 FALSE, /* partial_inplace */
492 0xffff, /* src_mask */
493 0xffff, /* dst_mask */
494 FALSE), /* pcrel_offset */
495
496 /* A 12-bit signed operand with the offset from the module base
497 address to the thread-local symbol address. */
498 HOWTO (R_FRV_TLSMOFF12, /* type */
499 0, /* rightshift */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
501 12, /* bitsize */
502 FALSE, /* pc_relative */
503 0, /* bitpos */
504 complain_overflow_signed, /* complain_on_overflow */
505 bfd_elf_generic_reloc, /* special_function */
506 "R_FRV_TLSMOFF12", /* name */
507 FALSE, /* partial_inplace */
508 0xfff, /* src_mask */
509 0xfff, /* dst_mask */
510 FALSE), /* pcrel_offset */
511
512 /* The upper 16 bits of the offset from the module base address to
513 the thread-local symbol address. */
514 HOWTO (R_FRV_TLSMOFFHI, /* type */
515 0, /* rightshift */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
517 16, /* bitsize */
518 FALSE, /* pc_relative */
519 0, /* bitpos */
520 complain_overflow_dont, /* complain_on_overflow */
521 bfd_elf_generic_reloc, /* special_function */
522 "R_FRV_TLSMOFFHI", /* name */
523 FALSE, /* partial_inplace */
524 0xffff, /* src_mask */
525 0xffff, /* dst_mask */
526 FALSE), /* pcrel_offset */
527
528 /* The lower 16 bits of the offset from the module base address to
529 the thread-local symbol address. */
530 HOWTO (R_FRV_TLSMOFFLO, /* type */
531 0, /* rightshift */
532 2, /* size (0 = byte, 1 = short, 2 = long) */
533 16, /* bitsize */
534 FALSE, /* pc_relative */
535 0, /* bitpos */
536 complain_overflow_dont, /* complain_on_overflow */
537 bfd_elf_generic_reloc, /* special_function */
538 "R_FRV_TLSMOFFLO", /* name */
539 FALSE, /* partial_inplace */
540 0xffff, /* src_mask */
541 0xffff, /* dst_mask */
542 FALSE), /* pcrel_offset */
543
544 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
545 for a symbol. */
546 HOWTO (R_FRV_GOTTLSOFF12, /* type */
547 0, /* rightshift */
548 2, /* size (0 = byte, 1 = short, 2 = long) */
549 12, /* bitsize */
550 FALSE, /* pc_relative */
551 0, /* bitpos */
552 complain_overflow_signed, /* complain_on_overflow */
553 bfd_elf_generic_reloc, /* special_function */
554 "R_FRV_GOTTLSOFF12", /* name */
555 FALSE, /* partial_inplace */
556 0xfff, /* src_mask */
557 0xfff, /* dst_mask */
558 FALSE), /* pcrel_offset */
559
560 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
561 symbol. */
562 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
563 0, /* rightshift */
564 2, /* size (0 = byte, 1 = short, 2 = long) */
565 16, /* bitsize */
566 FALSE, /* pc_relative */
567 0, /* bitpos */
568 complain_overflow_dont, /* complain_on_overflow */
569 bfd_elf_generic_reloc, /* special_function */
570 "R_FRV_GOTTLSOFFHI", /* name */
571 FALSE, /* partial_inplace */
572 0xffff, /* src_mask */
573 0xffff, /* dst_mask */
574 FALSE), /* pcrel_offset */
575
576 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
577 symbol. */
578 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
579 0, /* rightshift */
580 2, /* size (0 = byte, 1 = short, 2 = long) */
581 16, /* bitsize */
582 FALSE, /* pc_relative */
583 0, /* bitpos */
584 complain_overflow_dont, /* complain_on_overflow */
585 bfd_elf_generic_reloc, /* special_function */
586 "R_FRV_GOTTLSOFFLO", /* name */
587 FALSE, /* partial_inplace */
588 0xffff, /* src_mask */
589 0xffff, /* dst_mask */
590 FALSE), /* pcrel_offset */
591
592 /* The 32-bit offset from the thread pointer (not the module base
593 address) to a thread-local symbol. */
594 HOWTO (R_FRV_TLSOFF, /* type */
595 0, /* rightshift */
596 2, /* size (0 = byte, 1 = short, 2 = long) */
597 32, /* bitsize */
598 FALSE, /* pc_relative */
599 0, /* bitpos */
600 complain_overflow_dont, /* complain_on_overflow */
601 bfd_elf_generic_reloc, /* special_function */
602 "R_FRV_TLSOFF", /* name */
603 FALSE, /* partial_inplace */
604 0xffffffff, /* src_mask */
605 0xffffffff, /* dst_mask */
606 FALSE), /* pcrel_offset */
607
608 /* An annotation for linker relaxation, that denotes the
609 symbol+addend whose TLS descriptor is referenced by the sum of
610 the two input registers of an ldd instruction. */
611 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 0, /* bitsize */
615 FALSE, /* pc_relative */
616 0, /* bitpos */
617 complain_overflow_dont, /* complain_on_overflow */
618 bfd_elf_generic_reloc, /* special_function */
619 "R_FRV_TLSDESC_RELAX", /* name */
620 FALSE, /* partial_inplace */
621 0, /* src_mask */
622 0, /* dst_mask */
623 FALSE), /* pcrel_offset */
624
625 /* An annotation for linker relaxation, that denotes the
626 symbol+addend whose TLS resolver entry point is given by the sum
627 of the two register operands of an calll instruction. */
628 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
629 0, /* rightshift */
630 2, /* size (0 = byte, 1 = short, 2 = long) */
631 0, /* bitsize */
632 FALSE, /* pc_relative */
633 0, /* bitpos */
634 complain_overflow_dont, /* complain_on_overflow */
635 bfd_elf_generic_reloc, /* special_function */
636 "R_FRV_GETTLSOFF_RELAX", /* name */
637 FALSE, /* partial_inplace */
638 0, /* src_mask */
639 0, /* dst_mask */
640 FALSE), /* pcrel_offset */
641
642 /* An annotation for linker relaxation, that denotes the
643 symbol+addend whose TLS offset GOT entry is given by the sum of
644 the two input registers of an ld instruction. */
645 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
646 0, /* rightshift */
647 2, /* size (0 = byte, 1 = short, 2 = long) */
648 0, /* bitsize */
649 FALSE, /* pc_relative */
650 0, /* bitpos */
651 complain_overflow_bitfield, /* complain_on_overflow */
652 bfd_elf_generic_reloc, /* special_function */
653 "R_FRV_TLSOFF_RELAX", /* name */
654 FALSE, /* partial_inplace */
655 0, /* src_mask */
656 0, /* dst_mask */
657 FALSE), /* pcrel_offset */
658
659 /* A 32-bit offset from the module base address to
660 the thread-local symbol address. */
661 HOWTO (R_FRV_TLSMOFF, /* type */
662 0, /* rightshift */
663 2, /* size (0 = byte, 1 = short, 2 = long) */
664 32, /* bitsize */
665 FALSE, /* pc_relative */
666 0, /* bitpos */
667 complain_overflow_dont, /* complain_on_overflow */
668 bfd_elf_generic_reloc, /* special_function */
669 "R_FRV_TLSMOFF", /* name */
670 FALSE, /* partial_inplace */
671 0xffffffff, /* src_mask */
672 0xffffffff, /* dst_mask */
673 FALSE), /* pcrel_offset */
674 };
675
676 /* GNU extension to record C++ vtable hierarchy. */
677 static reloc_howto_type elf32_frv_vtinherit_howto =
678 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
679 0, /* rightshift */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
681 0, /* bitsize */
682 FALSE, /* pc_relative */
683 0, /* bitpos */
684 complain_overflow_dont, /* complain_on_overflow */
685 NULL, /* special_function */
686 "R_FRV_GNU_VTINHERIT", /* name */
687 FALSE, /* partial_inplace */
688 0, /* src_mask */
689 0, /* dst_mask */
690 FALSE); /* pcrel_offset */
691
692 /* GNU extension to record C++ vtable member usage. */
693 static reloc_howto_type elf32_frv_vtentry_howto =
694 HOWTO (R_FRV_GNU_VTENTRY, /* type */
695 0, /* rightshift */
696 2, /* size (0 = byte, 1 = short, 2 = long) */
697 0, /* bitsize */
698 FALSE, /* pc_relative */
699 0, /* bitpos */
700 complain_overflow_dont, /* complain_on_overflow */
701 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
702 "R_FRV_GNU_VTENTRY", /* name */
703 FALSE, /* partial_inplace */
704 0, /* src_mask */
705 0, /* dst_mask */
706 FALSE); /* pcrel_offset */
707
708 /* The following 3 relocations are REL. The only difference to the
709 entries in the table above are that partial_inplace is TRUE. */
710 static reloc_howto_type elf32_frv_rel_32_howto =
711 HOWTO (R_FRV_32, /* type */
712 0, /* rightshift */
713 2, /* size (0 = byte, 1 = short, 2 = long) */
714 32, /* bitsize */
715 FALSE, /* pc_relative */
716 0, /* bitpos */
717 complain_overflow_bitfield, /* complain_on_overflow */
718 bfd_elf_generic_reloc, /* special_function */
719 "R_FRV_32", /* name */
720 TRUE, /* partial_inplace */
721 0xffffffff, /* src_mask */
722 0xffffffff, /* dst_mask */
723 FALSE); /* pcrel_offset */
724
725 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
726 HOWTO (R_FRV_FUNCDESC, /* type */
727 0, /* rightshift */
728 2, /* size (0 = byte, 1 = short, 2 = long) */
729 32, /* bitsize */
730 FALSE, /* pc_relative */
731 0, /* bitpos */
732 complain_overflow_bitfield, /* complain_on_overflow */
733 bfd_elf_generic_reloc, /* special_function */
734 "R_FRV_FUNCDESC", /* name */
735 TRUE, /* partial_inplace */
736 0xffffffff, /* src_mask */
737 0xffffffff, /* dst_mask */
738 FALSE); /* pcrel_offset */
739
740 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
741 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
742 0, /* rightshift */
743 2, /* size (0 = byte, 1 = short, 2 = long) */
744 64, /* bitsize */
745 FALSE, /* pc_relative */
746 0, /* bitpos */
747 complain_overflow_bitfield, /* complain_on_overflow */
748 bfd_elf_generic_reloc, /* special_function */
749 "R_FRV_FUNCDESC_VALUE", /* name */
750 TRUE, /* partial_inplace */
751 0xffffffff, /* src_mask */
752 0xffffffff, /* dst_mask */
753 FALSE); /* pcrel_offset */
754
755 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
756 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
757 an entry point, and the second resolves to a special argument.
758 If the symbol turns out to be in static TLS, the entry point is a
759 return instruction, and the special argument is the TLS offset
760 for the symbol. If it's in dynamic TLS, the entry point is a TLS
761 offset resolver, and the special argument is a pointer to a data
762 structure allocated by the dynamic loader, containing the GOT
763 address for the offset resolver, the module id, the offset within
764 the module, and anything else the TLS offset resolver might need
765 to determine the TLS offset for the symbol in the running
766 thread. */
767 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
768 0, /* rightshift */
769 2, /* size (0 = byte, 1 = short, 2 = long) */
770 64, /* bitsize */
771 FALSE, /* pc_relative */
772 0, /* bitpos */
773 complain_overflow_bitfield, /* complain_on_overflow */
774 bfd_elf_generic_reloc, /* special_function */
775 "R_FRV_TLSDESC_VALUE", /* name */
776 TRUE, /* partial_inplace */
777 0xffffffff, /* src_mask */
778 0xffffffff, /* dst_mask */
779 FALSE); /* pcrel_offset */
780
781 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
782 /* The 32-bit offset from the thread pointer (not the module base
783 address) to a thread-local symbol. */
784 HOWTO (R_FRV_TLSOFF, /* type */
785 0, /* rightshift */
786 2, /* size (0 = byte, 1 = short, 2 = long) */
787 32, /* bitsize */
788 FALSE, /* pc_relative */
789 0, /* bitpos */
790 complain_overflow_bitfield, /* complain_on_overflow */
791 bfd_elf_generic_reloc, /* special_function */
792 "R_FRV_TLSOFF", /* name */
793 TRUE, /* partial_inplace */
794 0xffffffff, /* src_mask */
795 0xffffffff, /* dst_mask */
796 FALSE); /* pcrel_offset */
797
798
799 \f
800 extern const bfd_target frv_elf32_fdpic_vec;
801 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
802
803 /* An extension of the elf hash table data structure, containing some
804 additional FRV-specific data. */
805 struct frvfdpic_elf_link_hash_table
806 {
807 struct elf_link_hash_table elf;
808
809 /* A pointer to the .rofixup section. */
810 asection *sgotfixup;
811 /* GOT base offset. */
812 bfd_vma got0;
813 /* Location of the first non-lazy PLT entry, i.e., the number of
814 bytes taken by lazy PLT entries. If locally-bound TLS
815 descriptors require a ret instruction, it will be placed at this
816 offset. */
817 bfd_vma plt0;
818 /* A hash table holding information about which symbols were
819 referenced with which PIC-related relocations. */
820 struct htab *relocs_info;
821 /* Summary reloc information collected by
822 _frvfdpic_count_got_plt_entries. */
823 struct _frvfdpic_dynamic_got_info *g;
824 };
825
826 /* Get the FRV ELF linker hash table from a link_info structure. */
827
828 #define frvfdpic_hash_table(p) \
829 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
830 == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
831
832 #define frvfdpic_got_section(info) \
833 (frvfdpic_hash_table (info)->elf.sgot)
834 #define frvfdpic_gotrel_section(info) \
835 (frvfdpic_hash_table (info)->elf.srelgot)
836 #define frvfdpic_gotfixup_section(info) \
837 (frvfdpic_hash_table (info)->sgotfixup)
838 #define frvfdpic_plt_section(info) \
839 (frvfdpic_hash_table (info)->elf.splt)
840 #define frvfdpic_pltrel_section(info) \
841 (frvfdpic_hash_table (info)->elf.srelplt)
842 #define frvfdpic_relocs_info(info) \
843 (frvfdpic_hash_table (info)->relocs_info)
844 #define frvfdpic_got_initial_offset(info) \
845 (frvfdpic_hash_table (info)->got0)
846 #define frvfdpic_plt_initial_offset(info) \
847 (frvfdpic_hash_table (info)->plt0)
848 #define frvfdpic_dynamic_got_plt_info(info) \
849 (frvfdpic_hash_table (info)->g)
850
851 /* Currently it's the same, but if some day we have a reason to change
852 it, we'd better be using a different macro.
853
854 FIXME: if there's any TLS PLT entry that uses local-exec or
855 initial-exec models, we could use the ret at the end of any of them
856 instead of adding one more. */
857 #define frvfdpic_plt_tls_ret_offset(info) \
858 (frvfdpic_plt_initial_offset (info))
859
860 /* The name of the dynamic interpreter. This is put in the .interp
861 section. */
862
863 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
864
865 #define DEFAULT_STACK_SIZE 0x20000
866
867 /* This structure is used to collect the number of entries present in
868 each addressable range of the got. */
869 struct _frvfdpic_dynamic_got_info
870 {
871 /* Several bits of information about the current link. */
872 struct bfd_link_info *info;
873 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
874 ranges. */
875 bfd_vma got12, gotlos, gothilo;
876 /* Total GOT size needed for function descriptor entries within the 12-,
877 16- or 32-bit ranges. */
878 bfd_vma fd12, fdlos, fdhilo;
879 /* Total GOT size needed by function descriptor entries referenced
880 in PLT entries, that would be profitable to place in offsets
881 close to the PIC register. */
882 bfd_vma fdplt;
883 /* Total PLT size needed by lazy PLT entries. */
884 bfd_vma lzplt;
885 /* Total GOT size needed for TLS descriptor entries within the 12-,
886 16- or 32-bit ranges. */
887 bfd_vma tlsd12, tlsdlos, tlsdhilo;
888 /* Total GOT size needed by TLS descriptors referenced in PLT
889 entries, that would be profitable to place in offers close to the
890 PIC register. */
891 bfd_vma tlsdplt;
892 /* Total PLT size needed by TLS lazy PLT entries. */
893 bfd_vma tlslzplt;
894 /* Number of relocations carried over from input object files. */
895 unsigned long relocs;
896 /* Number of fixups introduced by relocations in input object files. */
897 unsigned long fixups;
898 /* The number of fixups that reference the ret instruction added to
899 the PLT for locally-resolved TLS descriptors. */
900 unsigned long tls_ret_refs;
901 };
902
903 /* This structure is used to assign offsets to got entries, function
904 descriptors, plt entries and lazy plt entries. */
905
906 struct _frvfdpic_dynamic_got_plt_info
907 {
908 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
909 struct _frvfdpic_dynamic_got_info g;
910
911 /* For each addressable range, we record a MAX (positive) and MIN
912 (negative) value. CUR is used to assign got entries, and it's
913 incremented from an initial positive value to MAX, then from MIN
914 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
915 assign function descriptors, and it's decreased from an initial
916 non-positive value to MIN, then from MAX down to CUR (unless CUR
917 wraps around first). All of MIN, MAX, CUR and FDCUR always point
918 to even words. ODD, if non-zero, indicates an odd word to be
919 used for the next got entry, otherwise CUR is used and
920 incremented by a pair of words, wrapping around when it reaches
921 MAX. FDCUR is decremented (and wrapped) before the next function
922 descriptor is chosen. FDPLT indicates the number of remaining
923 slots that can be used for function descriptors used only by PLT
924 entries.
925
926 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
927 starts as MAX, and grows up to TMAX, then wraps around to TMIN
928 and grows up to MIN. TLSDPLT indicates the number of remaining
929 slots that can be used for TLS descriptors used only by TLS PLT
930 entries. */
931 struct _frvfdpic_dynamic_got_alloc_data
932 {
933 bfd_signed_vma max, cur, odd, fdcur, min;
934 bfd_signed_vma tmax, tcur, tmin;
935 bfd_vma fdplt, tlsdplt;
936 } got12, gotlos, gothilo;
937 };
938
939 /* Create an FRV ELF linker hash table. */
940
941 static struct bfd_link_hash_table *
942 frvfdpic_elf_link_hash_table_create (bfd *abfd)
943 {
944 struct frvfdpic_elf_link_hash_table *ret;
945 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
946
947 ret = bfd_zmalloc (amt);
948 if (ret == NULL)
949 return NULL;
950
951 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
952 _bfd_elf_link_hash_newfunc,
953 sizeof (struct elf_link_hash_entry),
954 FRV_ELF_DATA))
955 {
956 free (ret);
957 return NULL;
958 }
959
960 return &ret->elf.root;
961 }
962
963 /* Decide whether a reference to a symbol can be resolved locally or
964 not. If the symbol is protected, we want the local address, but
965 its function descriptor must be assigned by the dynamic linker. */
966 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
967 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
968 || ! elf_hash_table (INFO)->dynamic_sections_created)
969 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
970 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
971
972 /* This structure collects information on what kind of GOT, PLT or
973 function descriptors are required by relocations that reference a
974 certain symbol. */
975 struct frvfdpic_relocs_info
976 {
977 /* The index of the symbol, as stored in the relocation r_info, if
978 we have a local symbol; -1 otherwise. */
979 long symndx;
980 union
981 {
982 /* The input bfd in which the symbol is defined, if it's a local
983 symbol. */
984 bfd *abfd;
985 /* If symndx == -1, the hash table entry corresponding to a global
986 symbol (even if it turns out to bind locally, in which case it
987 should ideally be replaced with section's symndx + addend). */
988 struct elf_link_hash_entry *h;
989 } d;
990 /* The addend of the relocation that references the symbol. */
991 bfd_vma addend;
992
993 /* The fields above are used to identify an entry. The fields below
994 contain information on how an entry is used and, later on, which
995 locations it was assigned. */
996 /* The following 3 fields record whether the symbol+addend above was
997 ever referenced with a GOT relocation. The 12 suffix indicates a
998 GOT12 relocation; los is used for GOTLO relocations that are not
999 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1000 pairs. */
1001 unsigned got12:1;
1002 unsigned gotlos:1;
1003 unsigned gothilo:1;
1004 /* Whether a FUNCDESC relocation references symbol+addend. */
1005 unsigned fd:1;
1006 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1007 unsigned fdgot12:1;
1008 unsigned fdgotlos:1;
1009 unsigned fdgothilo:1;
1010 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1011 unsigned fdgoff12:1;
1012 unsigned fdgofflos:1;
1013 unsigned fdgoffhilo:1;
1014 /* Whether a GETTLSOFF relocation references symbol+addend. */
1015 unsigned tlsplt:1;
1016 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1017 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1018 We might instead just pre-compute flags telling whether the
1019 object is suitable for local exec, initial exec or general
1020 dynamic addressing, and use that all over the place. We could
1021 also try to do a better job of merging TLSOFF and TLSDESC entries
1022 in main executables, but perhaps we can get rid of TLSDESC
1023 entirely in them instead. */
1024 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1025 unsigned tlsdesc12:1;
1026 unsigned tlsdesclos:1;
1027 unsigned tlsdeschilo:1;
1028 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1029 unsigned tlsoff12:1;
1030 unsigned tlsofflos:1;
1031 unsigned tlsoffhilo:1;
1032 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1033 GOTOFFHI relocations. The addend doesn't really matter, since we
1034 envision that this will only be used to check whether the symbol
1035 is mapped to the same segment as the got. */
1036 unsigned gotoff:1;
1037 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1038 unsigned call:1;
1039 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1040 relocation. */
1041 unsigned sym:1;
1042 /* Whether we need a PLT entry for a symbol. Should be implied by
1043 something like:
1044 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1045 unsigned plt:1;
1046 /* Whether a function descriptor should be created in this link unit
1047 for symbol+addend. Should be implied by something like:
1048 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1049 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1050 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1051 unsigned privfd:1;
1052 /* Whether a lazy PLT entry is needed for this symbol+addend.
1053 Should be implied by something like:
1054 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1055 && ! (info->flags & DF_BIND_NOW)) */
1056 unsigned lazyplt:1;
1057 /* Whether we've already emitted GOT relocations and PLT entries as
1058 needed for this symbol. */
1059 unsigned done:1;
1060
1061 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1062 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1063 symbol+addend. */
1064 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1065
1066 /* The number of .rofixups entries and dynamic relocations allocated
1067 for this symbol, minus any that might have already been used. */
1068 unsigned fixups, dynrelocs;
1069
1070 /* The offsets of the GOT entries assigned to symbol+addend, to the
1071 function descriptor's address, and to a function descriptor,
1072 respectively. Should be zero if unassigned. The offsets are
1073 counted from the value that will be assigned to the PIC register,
1074 not from the beginning of the .got section. */
1075 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1076 /* The offsets of the PLT entries assigned to symbol+addend,
1077 non-lazy and lazy, respectively. If unassigned, should be
1078 (bfd_vma)-1. */
1079 bfd_vma plt_entry, lzplt_entry;
1080 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1081 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1082 /* The offset of the TLS offset PLT entry. */
1083 bfd_vma tlsplt_entry;
1084 };
1085
1086 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1087 static hashval_t
1088 frvfdpic_relocs_info_hash (const void *entry_)
1089 {
1090 const struct frvfdpic_relocs_info *entry = entry_;
1091
1092 return (entry->symndx == -1
1093 ? (long) entry->d.h->root.root.hash
1094 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1095 }
1096
1097 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1098 identical. */
1099 static int
1100 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1101 {
1102 const struct frvfdpic_relocs_info *e1 = entry1;
1103 const struct frvfdpic_relocs_info *e2 = entry2;
1104
1105 return e1->symndx == e2->symndx && e1->addend == e2->addend
1106 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1107 }
1108
1109 /* Find or create an entry in a hash table HT that matches the key
1110 fields of the given ENTRY. If it's not found, memory for a new
1111 entry is allocated in ABFD's obstack. */
1112 static struct frvfdpic_relocs_info *
1113 frvfdpic_relocs_info_find (struct htab *ht,
1114 bfd *abfd,
1115 const struct frvfdpic_relocs_info *entry,
1116 enum insert_option insert)
1117 {
1118 struct frvfdpic_relocs_info **loc =
1119 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1120
1121 if (! loc)
1122 return NULL;
1123
1124 if (*loc)
1125 return *loc;
1126
1127 *loc = bfd_zalloc (abfd, sizeof (**loc));
1128
1129 if (! *loc)
1130 return *loc;
1131
1132 (*loc)->symndx = entry->symndx;
1133 (*loc)->d = entry->d;
1134 (*loc)->addend = entry->addend;
1135 (*loc)->plt_entry = (bfd_vma)-1;
1136 (*loc)->lzplt_entry = (bfd_vma)-1;
1137 (*loc)->tlsplt_entry = (bfd_vma)-1;
1138
1139 return *loc;
1140 }
1141
1142 /* Obtain the address of the entry in HT associated with H's symbol +
1143 addend, creating a new entry if none existed. ABFD is only used
1144 for memory allocation purposes. */
1145 inline static struct frvfdpic_relocs_info *
1146 frvfdpic_relocs_info_for_global (struct htab *ht,
1147 bfd *abfd,
1148 struct elf_link_hash_entry *h,
1149 bfd_vma addend,
1150 enum insert_option insert)
1151 {
1152 struct frvfdpic_relocs_info entry;
1153
1154 entry.symndx = -1;
1155 entry.d.h = h;
1156 entry.addend = addend;
1157
1158 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1159 }
1160
1161 /* Obtain the address of the entry in HT associated with the SYMNDXth
1162 local symbol of the input bfd ABFD, plus the addend, creating a new
1163 entry if none existed. */
1164 inline static struct frvfdpic_relocs_info *
1165 frvfdpic_relocs_info_for_local (struct htab *ht,
1166 bfd *abfd,
1167 long symndx,
1168 bfd_vma addend,
1169 enum insert_option insert)
1170 {
1171 struct frvfdpic_relocs_info entry;
1172
1173 entry.symndx = symndx;
1174 entry.d.abfd = abfd;
1175 entry.addend = addend;
1176
1177 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1178 }
1179
1180 /* Merge fields set by check_relocs() of two entries that end up being
1181 mapped to the same (presumably global) symbol. */
1182
1183 inline static void
1184 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1185 struct frvfdpic_relocs_info const *e1)
1186 {
1187 e2->got12 |= e1->got12;
1188 e2->gotlos |= e1->gotlos;
1189 e2->gothilo |= e1->gothilo;
1190 e2->fd |= e1->fd;
1191 e2->fdgot12 |= e1->fdgot12;
1192 e2->fdgotlos |= e1->fdgotlos;
1193 e2->fdgothilo |= e1->fdgothilo;
1194 e2->fdgoff12 |= e1->fdgoff12;
1195 e2->fdgofflos |= e1->fdgofflos;
1196 e2->fdgoffhilo |= e1->fdgoffhilo;
1197 e2->tlsplt |= e1->tlsplt;
1198 e2->tlsdesc12 |= e1->tlsdesc12;
1199 e2->tlsdesclos |= e1->tlsdesclos;
1200 e2->tlsdeschilo |= e1->tlsdeschilo;
1201 e2->tlsoff12 |= e1->tlsoff12;
1202 e2->tlsofflos |= e1->tlsofflos;
1203 e2->tlsoffhilo |= e1->tlsoffhilo;
1204 e2->gotoff |= e1->gotoff;
1205 e2->call |= e1->call;
1206 e2->sym |= e1->sym;
1207 }
1208
1209 /* Every block of 65535 lazy PLT entries shares a single call to the
1210 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1211 32767, counting from 0). All other lazy PLT entries branch to it
1212 in a single instruction. */
1213
1214 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1215 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1216
1217 /* Add a dynamic relocation to the SRELOC section. */
1218
1219 inline static bfd_vma
1220 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1221 int reloc_type, long dynindx, bfd_vma addend,
1222 struct frvfdpic_relocs_info *entry)
1223 {
1224 Elf_Internal_Rela outrel;
1225 bfd_vma reloc_offset;
1226
1227 outrel.r_offset = offset;
1228 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1229 outrel.r_addend = addend;
1230
1231 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1232 BFD_ASSERT (reloc_offset < sreloc->size);
1233 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1234 sreloc->contents + reloc_offset);
1235 sreloc->reloc_count++;
1236
1237 /* If the entry's index is zero, this relocation was probably to a
1238 linkonce section that got discarded. We reserved a dynamic
1239 relocation, but it was for another entry than the one we got at
1240 the time of emitting the relocation. Unfortunately there's no
1241 simple way for us to catch this situation, since the relocation
1242 is cleared right before calling relocate_section, at which point
1243 we no longer know what the relocation used to point to. */
1244 if (entry->symndx)
1245 {
1246 BFD_ASSERT (entry->dynrelocs > 0);
1247 entry->dynrelocs--;
1248 }
1249
1250 return reloc_offset;
1251 }
1252
1253 /* Add a fixup to the ROFIXUP section. */
1254
1255 static bfd_vma
1256 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1257 struct frvfdpic_relocs_info *entry)
1258 {
1259 bfd_vma fixup_offset;
1260
1261 if (rofixup->flags & SEC_EXCLUDE)
1262 return -1;
1263
1264 fixup_offset = rofixup->reloc_count * 4;
1265 if (rofixup->contents)
1266 {
1267 BFD_ASSERT (fixup_offset < rofixup->size);
1268 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1269 }
1270 rofixup->reloc_count++;
1271
1272 if (entry && entry->symndx)
1273 {
1274 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1275 above. */
1276 BFD_ASSERT (entry->fixups > 0);
1277 entry->fixups--;
1278 }
1279
1280 return fixup_offset;
1281 }
1282
1283 /* Find the segment number in which OSEC, and output section, is
1284 located. */
1285
1286 static unsigned
1287 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1288 {
1289 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1290
1291 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1292 }
1293
1294 inline static bfd_boolean
1295 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1296 {
1297 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1298
1299 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1300 }
1301
1302 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1303
1304 /* Return the base VMA address which should be subtracted from real addresses
1305 when resolving TLSMOFF relocation.
1306 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1307
1308 static bfd_vma
1309 tls_biased_base (struct bfd_link_info *info)
1310 {
1311 /* If tls_sec is NULL, we should have signalled an error already. */
1312 if (elf_hash_table (info)->tls_sec == NULL)
1313 return FRVFDPIC_TLS_BIAS;
1314 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1315 }
1316
1317 /* Generate relocations for GOT entries, function descriptors, and
1318 code for PLT and lazy PLT entries. */
1319
1320 inline static bfd_boolean
1321 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1322 bfd *output_bfd,
1323 struct bfd_link_info *info,
1324 asection *sec,
1325 Elf_Internal_Sym *sym,
1326 bfd_vma addend)
1327
1328 {
1329 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1330 int dynindx = -1;
1331
1332 if (entry->done)
1333 return TRUE;
1334 entry->done = 1;
1335
1336 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1337 || entry->tlsoff_entry || entry->tlsdesc_entry)
1338 {
1339 /* If the symbol is dynamic, consider it for dynamic
1340 relocations, otherwise decay to section + offset. */
1341 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1342 dynindx = entry->d.h->dynindx;
1343 else
1344 {
1345 if (sec
1346 && sec->output_section
1347 && ! bfd_is_abs_section (sec->output_section)
1348 && ! bfd_is_und_section (sec->output_section))
1349 dynindx = elf_section_data (sec->output_section)->dynindx;
1350 else
1351 dynindx = 0;
1352 }
1353 }
1354
1355 /* Generate relocation for GOT entry pointing to the symbol. */
1356 if (entry->got_entry)
1357 {
1358 int idx = dynindx;
1359 bfd_vma ad = addend;
1360
1361 /* If the symbol is dynamic but binds locally, use
1362 section+offset. */
1363 if (sec && (entry->symndx != -1
1364 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1365 {
1366 if (entry->symndx == -1)
1367 ad += entry->d.h->root.u.def.value;
1368 else
1369 ad += sym->st_value;
1370 ad += sec->output_offset;
1371 if (sec->output_section && elf_section_data (sec->output_section))
1372 idx = elf_section_data (sec->output_section)->dynindx;
1373 else
1374 idx = 0;
1375 }
1376
1377 /* If we're linking an executable at a fixed address, we can
1378 omit the dynamic relocation as long as the symbol is local to
1379 this module. */
1380 if (bfd_link_pde (info)
1381 && (entry->symndx != -1
1382 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1383 {
1384 if (sec)
1385 ad += sec->output_section->vma;
1386 if (entry->symndx != -1
1387 || entry->d.h->root.type != bfd_link_hash_undefweak)
1388 _frvfdpic_add_rofixup (output_bfd,
1389 frvfdpic_gotfixup_section (info),
1390 frvfdpic_got_section (info)->output_section
1391 ->vma
1392 + frvfdpic_got_section (info)->output_offset
1393 + frvfdpic_got_initial_offset (info)
1394 + entry->got_entry, entry);
1395 }
1396 else
1397 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1398 _bfd_elf_section_offset
1399 (output_bfd, info,
1400 frvfdpic_got_section (info),
1401 frvfdpic_got_initial_offset (info)
1402 + entry->got_entry)
1403 + frvfdpic_got_section (info)
1404 ->output_section->vma
1405 + frvfdpic_got_section (info)->output_offset,
1406 R_FRV_32, idx, ad, entry);
1407
1408 bfd_put_32 (output_bfd, ad,
1409 frvfdpic_got_section (info)->contents
1410 + frvfdpic_got_initial_offset (info)
1411 + entry->got_entry);
1412 }
1413
1414 /* Generate relocation for GOT entry pointing to a canonical
1415 function descriptor. */
1416 if (entry->fdgot_entry)
1417 {
1418 int reloc, idx;
1419 bfd_vma ad = 0;
1420
1421 if (! (entry->symndx == -1
1422 && entry->d.h->root.type == bfd_link_hash_undefweak
1423 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1424 {
1425 /* If the symbol is dynamic and there may be dynamic symbol
1426 resolution because we are, or are linked with, a shared
1427 library, emit a FUNCDESC relocation such that the dynamic
1428 linker will allocate the function descriptor. If the
1429 symbol needs a non-local function descriptor but binds
1430 locally (e.g., its visibility is protected, emit a
1431 dynamic relocation decayed to section+offset. */
1432 if (entry->symndx == -1
1433 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1434 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1435 && !bfd_link_pde (info))
1436 {
1437 reloc = R_FRV_FUNCDESC;
1438 idx = elf_section_data (entry->d.h->root.u.def.section
1439 ->output_section)->dynindx;
1440 ad = entry->d.h->root.u.def.section->output_offset
1441 + entry->d.h->root.u.def.value;
1442 }
1443 else if (entry->symndx == -1
1444 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1445 {
1446 reloc = R_FRV_FUNCDESC;
1447 idx = dynindx;
1448 ad = addend;
1449 if (ad)
1450 {
1451 (*info->callbacks->reloc_dangerous)
1452 (info, _("relocation requires zero addend"),
1453 elf_hash_table (info)->dynobj,
1454 frvfdpic_got_section (info),
1455 entry->fdgot_entry);
1456 return FALSE;
1457 }
1458 }
1459 else
1460 {
1461 /* Otherwise, we know we have a private function descriptor,
1462 so reference it directly. */
1463 if (elf_hash_table (info)->dynamic_sections_created)
1464 BFD_ASSERT (entry->privfd);
1465 reloc = R_FRV_32;
1466 idx = elf_section_data (frvfdpic_got_section (info)
1467 ->output_section)->dynindx;
1468 ad = frvfdpic_got_section (info)->output_offset
1469 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1470 }
1471
1472 /* If there is room for dynamic symbol resolution, emit the
1473 dynamic relocation. However, if we're linking an
1474 executable at a fixed location, we won't have emitted a
1475 dynamic symbol entry for the got section, so idx will be
1476 zero, which means we can and should compute the address
1477 of the private descriptor ourselves. */
1478 if (bfd_link_pde (info)
1479 && (entry->symndx != -1
1480 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1481 {
1482 ad += frvfdpic_got_section (info)->output_section->vma;
1483 _frvfdpic_add_rofixup (output_bfd,
1484 frvfdpic_gotfixup_section (info),
1485 frvfdpic_got_section (info)
1486 ->output_section->vma
1487 + frvfdpic_got_section (info)
1488 ->output_offset
1489 + frvfdpic_got_initial_offset (info)
1490 + entry->fdgot_entry, entry);
1491 }
1492 else
1493 _frvfdpic_add_dyn_reloc (output_bfd,
1494 frvfdpic_gotrel_section (info),
1495 _bfd_elf_section_offset
1496 (output_bfd, info,
1497 frvfdpic_got_section (info),
1498 frvfdpic_got_initial_offset (info)
1499 + entry->fdgot_entry)
1500 + frvfdpic_got_section (info)
1501 ->output_section->vma
1502 + frvfdpic_got_section (info)
1503 ->output_offset,
1504 reloc, idx, ad, entry);
1505 }
1506
1507 bfd_put_32 (output_bfd, ad,
1508 frvfdpic_got_section (info)->contents
1509 + frvfdpic_got_initial_offset (info)
1510 + entry->fdgot_entry);
1511 }
1512
1513 /* Generate relocation to fill in a private function descriptor in
1514 the GOT. */
1515 if (entry->fd_entry)
1516 {
1517 int idx = dynindx;
1518 bfd_vma ad = addend;
1519 bfd_vma ofst;
1520 long lowword, highword;
1521
1522 /* If the symbol is dynamic but binds locally, use
1523 section+offset. */
1524 if (sec && (entry->symndx != -1
1525 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1526 {
1527 if (entry->symndx == -1)
1528 ad += entry->d.h->root.u.def.value;
1529 else
1530 ad += sym->st_value;
1531 ad += sec->output_offset;
1532 if (sec->output_section && elf_section_data (sec->output_section))
1533 idx = elf_section_data (sec->output_section)->dynindx;
1534 else
1535 idx = 0;
1536 }
1537
1538 /* If we're linking an executable at a fixed address, we can
1539 omit the dynamic relocation as long as the symbol is local to
1540 this module. */
1541 if (bfd_link_pde (info)
1542 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1543 {
1544 if (sec)
1545 ad += sec->output_section->vma;
1546 ofst = 0;
1547 if (entry->symndx != -1
1548 || entry->d.h->root.type != bfd_link_hash_undefweak)
1549 {
1550 _frvfdpic_add_rofixup (output_bfd,
1551 frvfdpic_gotfixup_section (info),
1552 frvfdpic_got_section (info)
1553 ->output_section->vma
1554 + frvfdpic_got_section (info)
1555 ->output_offset
1556 + frvfdpic_got_initial_offset (info)
1557 + entry->fd_entry, entry);
1558 _frvfdpic_add_rofixup (output_bfd,
1559 frvfdpic_gotfixup_section (info),
1560 frvfdpic_got_section (info)
1561 ->output_section->vma
1562 + frvfdpic_got_section (info)
1563 ->output_offset
1564 + frvfdpic_got_initial_offset (info)
1565 + entry->fd_entry + 4, entry);
1566 }
1567 }
1568 else
1569 {
1570 ofst =
1571 _frvfdpic_add_dyn_reloc (output_bfd,
1572 entry->lazyplt
1573 ? frvfdpic_pltrel_section (info)
1574 : frvfdpic_gotrel_section (info),
1575 _bfd_elf_section_offset
1576 (output_bfd, info,
1577 frvfdpic_got_section (info),
1578 frvfdpic_got_initial_offset (info)
1579 + entry->fd_entry)
1580 + frvfdpic_got_section (info)
1581 ->output_section->vma
1582 + frvfdpic_got_section (info)
1583 ->output_offset,
1584 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1585 }
1586
1587 /* If we've omitted the dynamic relocation, just emit the fixed
1588 addresses of the symbol and of the local GOT base offset. */
1589 if (bfd_link_pde (info)
1590 && sec
1591 && sec->output_section)
1592 {
1593 lowword = ad;
1594 highword = frvfdpic_got_section (info)->output_section->vma
1595 + frvfdpic_got_section (info)->output_offset
1596 + frvfdpic_got_initial_offset (info);
1597 }
1598 else if (entry->lazyplt)
1599 {
1600 if (ad)
1601 {
1602 (*info->callbacks->reloc_dangerous)
1603 (info, _("relocation requires zero addend"),
1604 elf_hash_table (info)->dynobj,
1605 frvfdpic_got_section (info),
1606 entry->fd_entry);
1607 return FALSE;
1608 }
1609
1610 fd_lazy_rel_offset = ofst;
1611
1612 /* A function descriptor used for lazy or local resolving is
1613 initialized such that its high word contains the output
1614 section index in which the PLT entries are located, and
1615 the low word contains the address of the lazy PLT entry
1616 entry point, that must be within the memory region
1617 assigned to that section. */
1618 lowword = entry->lzplt_entry + 4
1619 + frvfdpic_plt_section (info)->output_offset
1620 + frvfdpic_plt_section (info)->output_section->vma;
1621 highword = _frvfdpic_osec_to_segment
1622 (output_bfd, frvfdpic_plt_section (info)->output_section);
1623 }
1624 else
1625 {
1626 /* A function descriptor for a local function gets the index
1627 of the section. For a non-local function, it's
1628 disregarded. */
1629 lowword = ad;
1630 if (sec == NULL
1631 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1632 && entry->d.h->dynindx == idx))
1633 highword = 0;
1634 else
1635 highword = _frvfdpic_osec_to_segment
1636 (output_bfd, sec->output_section);
1637 }
1638
1639 bfd_put_32 (output_bfd, lowword,
1640 frvfdpic_got_section (info)->contents
1641 + frvfdpic_got_initial_offset (info)
1642 + entry->fd_entry);
1643 bfd_put_32 (output_bfd, highword,
1644 frvfdpic_got_section (info)->contents
1645 + frvfdpic_got_initial_offset (info)
1646 + entry->fd_entry + 4);
1647 }
1648
1649 /* Generate code for the PLT entry. */
1650 if (entry->plt_entry != (bfd_vma) -1)
1651 {
1652 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1653 + entry->plt_entry;
1654
1655 BFD_ASSERT (entry->fd_entry);
1656
1657 /* Figure out what kind of PLT entry we need, depending on the
1658 location of the function descriptor within the GOT. */
1659 if (entry->fd_entry >= -(1 << (12 - 1))
1660 && entry->fd_entry < (1 << (12 - 1)))
1661 {
1662 /* lddi @(gr15, fd_entry), gr14 */
1663 bfd_put_32 (output_bfd,
1664 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1665 plt_code);
1666 plt_code += 4;
1667 }
1668 else
1669 {
1670 if (entry->fd_entry >= -(1 << (16 - 1))
1671 && entry->fd_entry < (1 << (16 - 1)))
1672 {
1673 /* setlos lo(fd_entry), gr14 */
1674 bfd_put_32 (output_bfd,
1675 0x9cfc0000
1676 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1677 plt_code);
1678 plt_code += 4;
1679 }
1680 else
1681 {
1682 /* sethi.p hi(fd_entry), gr14
1683 setlo lo(fd_entry), gr14 */
1684 bfd_put_32 (output_bfd,
1685 0x1cf80000
1686 | ((entry->fd_entry >> 16)
1687 & (((bfd_vma)1 << 16) - 1)),
1688 plt_code);
1689 plt_code += 4;
1690 bfd_put_32 (output_bfd,
1691 0x9cf40000
1692 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1693 plt_code);
1694 plt_code += 4;
1695 }
1696 /* ldd @(gr14,gr15),gr14 */
1697 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1698 plt_code += 4;
1699 }
1700 /* jmpl @(gr14,gr0) */
1701 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1702 }
1703
1704 /* Generate code for the lazy PLT entry. */
1705 if (entry->lzplt_entry != (bfd_vma) -1)
1706 {
1707 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1708 + entry->lzplt_entry;
1709 bfd_vma resolverStub_addr;
1710
1711 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1712 lzplt_code += 4;
1713
1714 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1715 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1716 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1717 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1718
1719 if (entry->lzplt_entry == resolverStub_addr)
1720 {
1721 /* This is a lazy PLT entry that includes a resolver call. */
1722 /* ldd @(gr15,gr0), gr4
1723 jmpl @(gr4,gr0) */
1724 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1725 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1726 }
1727 else
1728 {
1729 /* bra resolverStub */
1730 bfd_put_32 (output_bfd,
1731 0xc01a0000
1732 | (((resolverStub_addr - entry->lzplt_entry)
1733 / 4) & (((bfd_vma)1 << 16) - 1)),
1734 lzplt_code);
1735 }
1736 }
1737
1738 /* Generate relocation for GOT entry holding the TLS offset. */
1739 if (entry->tlsoff_entry)
1740 {
1741 int idx = dynindx;
1742 bfd_vma ad = addend;
1743
1744 if (entry->symndx != -1
1745 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1746 {
1747 /* If the symbol is dynamic but binds locally, use
1748 section+offset. */
1749 if (sec)
1750 {
1751 if (entry->symndx == -1)
1752 ad += entry->d.h->root.u.def.value;
1753 else
1754 ad += sym->st_value;
1755 ad += sec->output_offset;
1756 if (sec->output_section
1757 && elf_section_data (sec->output_section))
1758 idx = elf_section_data (sec->output_section)->dynindx;
1759 else
1760 idx = 0;
1761 }
1762 }
1763
1764 /* *ABS*+addend is special for TLS relocations, use only the
1765 addend. */
1766 if (bfd_link_executable (info)
1767 && idx == 0
1768 && (bfd_is_abs_section (sec)
1769 || bfd_is_und_section (sec)))
1770 ;
1771 /* If we're linking an executable, we can entirely omit the
1772 dynamic relocation if the symbol is local to this module. */
1773 else if (bfd_link_executable (info)
1774 && (entry->symndx != -1
1775 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1776 {
1777 if (sec)
1778 ad += sec->output_section->vma - tls_biased_base (info);
1779 }
1780 else
1781 {
1782 if (idx == 0
1783 && (bfd_is_abs_section (sec)
1784 || bfd_is_und_section (sec)))
1785 {
1786 if (! elf_hash_table (info)->tls_sec)
1787 {
1788 (*info->callbacks->undefined_symbol)
1789 (info, "TLS section", elf_hash_table (info)->dynobj,
1790 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1791 return FALSE;
1792 }
1793 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1794 ad += FRVFDPIC_TLS_BIAS;
1795 }
1796 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1797 _bfd_elf_section_offset
1798 (output_bfd, info,
1799 frvfdpic_got_section (info),
1800 frvfdpic_got_initial_offset (info)
1801 + entry->tlsoff_entry)
1802 + frvfdpic_got_section (info)
1803 ->output_section->vma
1804 + frvfdpic_got_section (info)
1805 ->output_offset,
1806 R_FRV_TLSOFF, idx, ad, entry);
1807 }
1808
1809 bfd_put_32 (output_bfd, ad,
1810 frvfdpic_got_section (info)->contents
1811 + frvfdpic_got_initial_offset (info)
1812 + entry->tlsoff_entry);
1813 }
1814
1815 if (entry->tlsdesc_entry)
1816 {
1817 int idx = dynindx;
1818 bfd_vma ad = addend;
1819
1820 /* If the symbol is dynamic but binds locally, use
1821 section+offset. */
1822 if (sec && (entry->symndx != -1
1823 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1824 {
1825 if (entry->symndx == -1)
1826 ad += entry->d.h->root.u.def.value;
1827 else
1828 ad += sym->st_value;
1829 ad += sec->output_offset;
1830 if (sec->output_section && elf_section_data (sec->output_section))
1831 idx = elf_section_data (sec->output_section)->dynindx;
1832 else
1833 idx = 0;
1834 }
1835
1836 /* If we didn't set up a TLS offset entry, but we're linking an
1837 executable and the symbol binds locally, we can use the
1838 module offset in the TLS descriptor in relaxations. */
1839 if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1840 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1841
1842 if (bfd_link_pde (info)
1843 && ((idx == 0
1844 && (bfd_is_abs_section (sec)
1845 || bfd_is_und_section (sec)))
1846 || entry->symndx != -1
1847 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1848 {
1849 /* *ABS*+addend is special for TLS relocations, use only the
1850 addend for the TLS offset, and take the module id as
1851 0. */
1852 if (idx == 0
1853 && (bfd_is_abs_section (sec)
1854 || bfd_is_und_section (sec)))
1855 ;
1856 /* For other TLS symbols that bind locally, add the section
1857 TLS offset to the addend. */
1858 else if (sec)
1859 ad += sec->output_section->vma - tls_biased_base (info);
1860
1861 bfd_put_32 (output_bfd,
1862 frvfdpic_plt_section (info)->output_section->vma
1863 + frvfdpic_plt_section (info)->output_offset
1864 + frvfdpic_plt_tls_ret_offset (info),
1865 frvfdpic_got_section (info)->contents
1866 + frvfdpic_got_initial_offset (info)
1867 + entry->tlsdesc_entry);
1868
1869 _frvfdpic_add_rofixup (output_bfd,
1870 frvfdpic_gotfixup_section (info),
1871 frvfdpic_got_section (info)
1872 ->output_section->vma
1873 + frvfdpic_got_section (info)
1874 ->output_offset
1875 + frvfdpic_got_initial_offset (info)
1876 + entry->tlsdesc_entry, entry);
1877
1878 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1879
1880 /* We've used one of the reserved fixups, so discount it so
1881 that we can check at the end that we've used them
1882 all. */
1883 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1884
1885 /* While at that, make sure the ret instruction makes to the
1886 right location in the PLT. We could do it only when we
1887 got to 0, but since the check at the end will only print
1888 a warning, make sure we have the ret in place in case the
1889 warning is missed. */
1890 bfd_put_32 (output_bfd, 0xc03a4000,
1891 frvfdpic_plt_section (info)->contents
1892 + frvfdpic_plt_tls_ret_offset (info));
1893 }
1894 else
1895 {
1896 if (idx == 0
1897 && (bfd_is_abs_section (sec)
1898 || bfd_is_und_section (sec)))
1899 {
1900 if (! elf_hash_table (info)->tls_sec)
1901 {
1902 (*info->callbacks->undefined_symbol)
1903 (info, "TLS section", elf_hash_table (info)->dynobj,
1904 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1905 return FALSE;
1906 }
1907 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1908 ad += FRVFDPIC_TLS_BIAS;
1909 }
1910
1911 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1912 _bfd_elf_section_offset
1913 (output_bfd, info,
1914 frvfdpic_got_section (info),
1915 frvfdpic_got_initial_offset (info)
1916 + entry->tlsdesc_entry)
1917 + frvfdpic_got_section (info)
1918 ->output_section->vma
1919 + frvfdpic_got_section (info)
1920 ->output_offset,
1921 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1922
1923 bfd_put_32 (output_bfd, 0,
1924 frvfdpic_got_section (info)->contents
1925 + frvfdpic_got_initial_offset (info)
1926 + entry->tlsdesc_entry);
1927 }
1928
1929 bfd_put_32 (output_bfd, ad,
1930 frvfdpic_got_section (info)->contents
1931 + frvfdpic_got_initial_offset (info)
1932 + entry->tlsdesc_entry + 4);
1933 }
1934
1935 /* Generate code for the get-TLS-offset PLT entry. */
1936 if (entry->tlsplt_entry != (bfd_vma) -1)
1937 {
1938 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1939 + entry->tlsplt_entry;
1940
1941 if (bfd_link_executable (info)
1942 && (entry->symndx != -1
1943 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1944 {
1945 int idx = dynindx;
1946 bfd_vma ad = addend;
1947
1948 /* sec may be NULL when referencing an undefweak symbol
1949 while linking a static executable. */
1950 if (!sec)
1951 {
1952 BFD_ASSERT (entry->symndx == -1
1953 && entry->d.h->root.type == bfd_link_hash_undefweak);
1954 }
1955 else
1956 {
1957 if (entry->symndx == -1)
1958 ad += entry->d.h->root.u.def.value;
1959 else
1960 ad += sym->st_value;
1961 ad += sec->output_offset;
1962 if (sec->output_section
1963 && elf_section_data (sec->output_section))
1964 idx = elf_section_data (sec->output_section)->dynindx;
1965 else
1966 idx = 0;
1967 }
1968
1969 /* *ABS*+addend is special for TLS relocations, use only the
1970 addend for the TLS offset, and take the module id as
1971 0. */
1972 if (idx == 0
1973 && (bfd_is_abs_section (sec)
1974 || bfd_is_und_section (sec)))
1975 ;
1976 /* For other TLS symbols that bind locally, add the section
1977 TLS offset to the addend. */
1978 else if (sec)
1979 ad += sec->output_section->vma - tls_biased_base (info);
1980
1981 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1982 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1983 {
1984 /* setlos lo(ad), gr9 */
1985 bfd_put_32 (output_bfd,
1986 0x92fc0000
1987 | (ad
1988 & (((bfd_vma)1 << 16) - 1)),
1989 plt_code);
1990 plt_code += 4;
1991 }
1992 else
1993 {
1994 /* sethi.p hi(ad), gr9
1995 setlo lo(ad), gr9 */
1996 bfd_put_32 (output_bfd,
1997 0x12f80000
1998 | ((ad >> 16)
1999 & (((bfd_vma)1 << 16) - 1)),
2000 plt_code);
2001 plt_code += 4;
2002 bfd_put_32 (output_bfd,
2003 0x92f40000
2004 | (ad
2005 & (((bfd_vma)1 << 16) - 1)),
2006 plt_code);
2007 plt_code += 4;
2008 }
2009 /* ret */
2010 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2011 }
2012 else if (entry->tlsoff_entry)
2013 {
2014 /* Figure out what kind of PLT entry we need, depending on the
2015 location of the TLS descriptor within the GOT. */
2016 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2017 && entry->tlsoff_entry < (1 << (12 - 1)))
2018 {
2019 /* ldi @(gr15, tlsoff_entry), gr9 */
2020 bfd_put_32 (output_bfd,
2021 0x92c8f000 | (entry->tlsoff_entry
2022 & ((1 << 12) - 1)),
2023 plt_code);
2024 plt_code += 4;
2025 }
2026 else
2027 {
2028 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2029 && entry->tlsoff_entry < (1 << (16 - 1)))
2030 {
2031 /* setlos lo(tlsoff_entry), gr8 */
2032 bfd_put_32 (output_bfd,
2033 0x90fc0000
2034 | (entry->tlsoff_entry
2035 & (((bfd_vma)1 << 16) - 1)),
2036 plt_code);
2037 plt_code += 4;
2038 }
2039 else
2040 {
2041 /* sethi.p hi(tlsoff_entry), gr8
2042 setlo lo(tlsoff_entry), gr8 */
2043 bfd_put_32 (output_bfd,
2044 0x10f80000
2045 | ((entry->tlsoff_entry >> 16)
2046 & (((bfd_vma)1 << 16) - 1)),
2047 plt_code);
2048 plt_code += 4;
2049 bfd_put_32 (output_bfd,
2050 0x90f40000
2051 | (entry->tlsoff_entry
2052 & (((bfd_vma)1 << 16) - 1)),
2053 plt_code);
2054 plt_code += 4;
2055 }
2056 /* ld @(gr15,gr8),gr9 */
2057 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2058 plt_code += 4;
2059 }
2060 /* ret */
2061 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2062 }
2063 else
2064 {
2065 BFD_ASSERT (entry->tlsdesc_entry);
2066
2067 /* Figure out what kind of PLT entry we need, depending on the
2068 location of the TLS descriptor within the GOT. */
2069 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2070 && entry->tlsdesc_entry < (1 << (12 - 1)))
2071 {
2072 /* lddi @(gr15, tlsdesc_entry), gr8 */
2073 bfd_put_32 (output_bfd,
2074 0x90ccf000 | (entry->tlsdesc_entry
2075 & ((1 << 12) - 1)),
2076 plt_code);
2077 plt_code += 4;
2078 }
2079 else
2080 {
2081 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2082 && entry->tlsdesc_entry < (1 << (16 - 1)))
2083 {
2084 /* setlos lo(tlsdesc_entry), gr8 */
2085 bfd_put_32 (output_bfd,
2086 0x90fc0000
2087 | (entry->tlsdesc_entry
2088 & (((bfd_vma)1 << 16) - 1)),
2089 plt_code);
2090 plt_code += 4;
2091 }
2092 else
2093 {
2094 /* sethi.p hi(tlsdesc_entry), gr8
2095 setlo lo(tlsdesc_entry), gr8 */
2096 bfd_put_32 (output_bfd,
2097 0x10f80000
2098 | ((entry->tlsdesc_entry >> 16)
2099 & (((bfd_vma)1 << 16) - 1)),
2100 plt_code);
2101 plt_code += 4;
2102 bfd_put_32 (output_bfd,
2103 0x90f40000
2104 | (entry->tlsdesc_entry
2105 & (((bfd_vma)1 << 16) - 1)),
2106 plt_code);
2107 plt_code += 4;
2108 }
2109 /* ldd @(gr15,gr8),gr8 */
2110 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2111 plt_code += 4;
2112 }
2113 /* jmpl @(gr8,gr0) */
2114 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2115 }
2116 }
2117
2118 return TRUE;
2119 }
2120
2121 /* Handle an FRV small data reloc. */
2122
2123 static bfd_reloc_status_type
2124 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2125 bfd *input_bfd,
2126 asection *input_section,
2127 Elf_Internal_Rela *relocation,
2128 bfd_byte *contents,
2129 bfd_vma value)
2130 {
2131 bfd_vma insn;
2132 bfd_vma gp;
2133 struct bfd_link_hash_entry *h;
2134
2135 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2136
2137 gp = (h->u.def.value
2138 + h->u.def.section->output_section->vma
2139 + h->u.def.section->output_offset);
2140
2141 value -= input_section->output_section->vma;
2142 value -= (gp - input_section->output_section->vma);
2143
2144 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2145
2146 value += relocation->r_addend;
2147
2148 if ((long) value > 0x7ff || (long) value < -0x800)
2149 return bfd_reloc_overflow;
2150
2151 bfd_put_32 (input_bfd,
2152 (insn & 0xfffff000) | (value & 0xfff),
2153 contents + relocation->r_offset);
2154
2155 return bfd_reloc_ok;
2156 }
2157
2158 /* Handle an FRV small data reloc. for the u12 field. */
2159
2160 static bfd_reloc_status_type
2161 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2162 bfd *input_bfd,
2163 asection *input_section,
2164 Elf_Internal_Rela *relocation,
2165 bfd_byte *contents,
2166 bfd_vma value)
2167 {
2168 bfd_vma insn;
2169 bfd_vma gp;
2170 struct bfd_link_hash_entry *h;
2171 bfd_vma mask;
2172
2173 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2174
2175 gp = (h->u.def.value
2176 + h->u.def.section->output_section->vma
2177 + h->u.def.section->output_offset);
2178
2179 value -= input_section->output_section->vma;
2180 value -= (gp - input_section->output_section->vma);
2181
2182 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2183
2184 value += relocation->r_addend;
2185
2186 if ((long) value > 0x7ff || (long) value < -0x800)
2187 return bfd_reloc_overflow;
2188
2189 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2190 mask = 0x3f03f;
2191 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2192
2193 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2194
2195 return bfd_reloc_ok;
2196 }
2197
2198 /* Handle an FRV ELF HI16 reloc. */
2199
2200 static bfd_reloc_status_type
2201 elf32_frv_relocate_hi16 (bfd *input_bfd,
2202 Elf_Internal_Rela *relhi,
2203 bfd_byte *contents,
2204 bfd_vma value)
2205 {
2206 bfd_vma insn;
2207
2208 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2209
2210 value += relhi->r_addend;
2211 value = ((value >> 16) & 0xffff);
2212
2213 insn = (insn & 0xffff0000) | value;
2214
2215 if ((long) value > 0xffff || (long) value < -0x10000)
2216 return bfd_reloc_overflow;
2217
2218 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2219 return bfd_reloc_ok;
2220
2221 }
2222 static bfd_reloc_status_type
2223 elf32_frv_relocate_lo16 (bfd *input_bfd,
2224 Elf_Internal_Rela *rello,
2225 bfd_byte *contents,
2226 bfd_vma value)
2227 {
2228 bfd_vma insn;
2229
2230 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2231
2232 value += rello->r_addend;
2233 value = value & 0xffff;
2234
2235 insn = (insn & 0xffff0000) | value;
2236
2237 if ((long) value > 0xffff || (long) value < -0x10000)
2238 return bfd_reloc_overflow;
2239
2240 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2241 return bfd_reloc_ok;
2242 }
2243
2244 /* Perform the relocation for the CALL label24 instruction. */
2245
2246 static bfd_reloc_status_type
2247 elf32_frv_relocate_label24 (bfd *input_bfd,
2248 asection *input_section,
2249 Elf_Internal_Rela *rello,
2250 bfd_byte *contents,
2251 bfd_vma value)
2252 {
2253 bfd_vma insn;
2254 bfd_vma label6;
2255 bfd_vma label18;
2256
2257 /* The format for the call instruction is:
2258
2259 0 000000 0001111 000000000000000000
2260 label6 opcode label18
2261
2262 The branch calculation is: pc + (4*label24)
2263 where label24 is the concatenation of label6 and label18. */
2264
2265 /* Grab the instruction. */
2266 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2267
2268 value -= input_section->output_section->vma + input_section->output_offset;
2269 value -= rello->r_offset;
2270 value += rello->r_addend;
2271
2272 value = value >> 2;
2273
2274 label6 = value & 0xfc0000;
2275 label6 = label6 << 7;
2276
2277 label18 = value & 0x3ffff;
2278
2279 insn = insn & 0x803c0000;
2280 insn = insn | label6;
2281 insn = insn | label18;
2282
2283 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2284
2285 return bfd_reloc_ok;
2286 }
2287
2288 static bfd_reloc_status_type
2289 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2290 bfd *input_bfd,
2291 asection *input_section,
2292 Elf_Internal_Rela *relocation,
2293 bfd_byte *contents,
2294 bfd_vma value)
2295 {
2296 bfd_vma insn;
2297 bfd_vma gp;
2298 struct bfd_link_hash_entry *h;
2299
2300 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2301
2302 gp = (h->u.def.value
2303 + h->u.def.section->output_section->vma
2304 + h->u.def.section->output_offset);
2305
2306 value -= input_section->output_section->vma;
2307 value -= (gp - input_section->output_section->vma);
2308 value += relocation->r_addend;
2309 value = ((value >> 16) & 0xffff);
2310
2311 if ((long) value > 0xffff || (long) value < -0x10000)
2312 return bfd_reloc_overflow;
2313
2314 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2315 insn = (insn & 0xffff0000) | value;
2316
2317 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2318 return bfd_reloc_ok;
2319 }
2320
2321 static bfd_reloc_status_type
2322 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2323 bfd *input_bfd,
2324 asection *input_section,
2325 Elf_Internal_Rela *relocation,
2326 bfd_byte *contents,
2327 bfd_vma value)
2328 {
2329 bfd_vma insn;
2330 bfd_vma gp;
2331 struct bfd_link_hash_entry *h;
2332
2333 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2334
2335 gp = (h->u.def.value
2336 + h->u.def.section->output_section->vma
2337 + h->u.def.section->output_offset);
2338
2339 value -= input_section->output_section->vma;
2340 value -= (gp - input_section->output_section->vma);
2341 value += relocation->r_addend;
2342 value = value & 0xffff;
2343
2344 if ((long) value > 0xffff || (long) value < -0x10000)
2345 return bfd_reloc_overflow;
2346
2347 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2348 insn = (insn & 0xffff0000) | value;
2349
2350 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2351
2352 return bfd_reloc_ok;
2353 }
2354
2355 static reloc_howto_type *
2356 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2357 bfd_reloc_code_real_type code)
2358 {
2359 switch (code)
2360 {
2361 default:
2362 break;
2363
2364 case BFD_RELOC_NONE:
2365 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2366
2367 case BFD_RELOC_32:
2368 if (elf_elfheader (abfd)->e_type == ET_EXEC
2369 || elf_elfheader (abfd)->e_type == ET_DYN)
2370 return &elf32_frv_rel_32_howto;
2371 /* Fall through. */
2372 case BFD_RELOC_CTOR:
2373 return &elf32_frv_howto_table[ (int) R_FRV_32];
2374
2375 case BFD_RELOC_FRV_LABEL16:
2376 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2377
2378 case BFD_RELOC_FRV_LABEL24:
2379 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2380
2381 case BFD_RELOC_FRV_LO16:
2382 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2383
2384 case BFD_RELOC_FRV_HI16:
2385 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2386
2387 case BFD_RELOC_FRV_GPREL12:
2388 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2389
2390 case BFD_RELOC_FRV_GPRELU12:
2391 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2392
2393 case BFD_RELOC_FRV_GPREL32:
2394 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2395
2396 case BFD_RELOC_FRV_GPRELHI:
2397 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2398
2399 case BFD_RELOC_FRV_GPRELLO:
2400 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2401
2402 case BFD_RELOC_FRV_GOT12:
2403 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2404
2405 case BFD_RELOC_FRV_GOTHI:
2406 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2407
2408 case BFD_RELOC_FRV_GOTLO:
2409 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2410
2411 case BFD_RELOC_FRV_FUNCDESC:
2412 if (elf_elfheader (abfd)->e_type == ET_EXEC
2413 || elf_elfheader (abfd)->e_type == ET_DYN)
2414 return &elf32_frv_rel_funcdesc_howto;
2415 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2416
2417 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2418 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2419
2420 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2421 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2422
2423 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2424 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2425
2426 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2427 if (elf_elfheader (abfd)->e_type == ET_EXEC
2428 || elf_elfheader (abfd)->e_type == ET_DYN)
2429 return &elf32_frv_rel_funcdesc_value_howto;
2430 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2431
2432 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2433 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2434
2435 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2436 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2437
2438 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2439 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2440
2441 case BFD_RELOC_FRV_GOTOFF12:
2442 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2443
2444 case BFD_RELOC_FRV_GOTOFFHI:
2445 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2446
2447 case BFD_RELOC_FRV_GOTOFFLO:
2448 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2449
2450 case BFD_RELOC_FRV_GETTLSOFF:
2451 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2452
2453 case BFD_RELOC_FRV_TLSDESC_VALUE:
2454 if (elf_elfheader (abfd)->e_type == ET_EXEC
2455 || elf_elfheader (abfd)->e_type == ET_DYN)
2456 return &elf32_frv_rel_tlsdesc_value_howto;
2457 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2458
2459 case BFD_RELOC_FRV_GOTTLSDESC12:
2460 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2461
2462 case BFD_RELOC_FRV_GOTTLSDESCHI:
2463 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2464
2465 case BFD_RELOC_FRV_GOTTLSDESCLO:
2466 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2467
2468 case BFD_RELOC_FRV_TLSMOFF12:
2469 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2470
2471 case BFD_RELOC_FRV_TLSMOFFHI:
2472 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2473
2474 case BFD_RELOC_FRV_TLSMOFFLO:
2475 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2476
2477 case BFD_RELOC_FRV_GOTTLSOFF12:
2478 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2479
2480 case BFD_RELOC_FRV_GOTTLSOFFHI:
2481 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2482
2483 case BFD_RELOC_FRV_GOTTLSOFFLO:
2484 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2485
2486 case BFD_RELOC_FRV_TLSOFF:
2487 if (elf_elfheader (abfd)->e_type == ET_EXEC
2488 || elf_elfheader (abfd)->e_type == ET_DYN)
2489 return &elf32_frv_rel_tlsoff_howto;
2490 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2491
2492 case BFD_RELOC_FRV_TLSDESC_RELAX:
2493 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2494
2495 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2496 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2497
2498 case BFD_RELOC_FRV_TLSOFF_RELAX:
2499 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2500
2501 case BFD_RELOC_FRV_TLSMOFF:
2502 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2503
2504 case BFD_RELOC_VTABLE_INHERIT:
2505 return &elf32_frv_vtinherit_howto;
2506
2507 case BFD_RELOC_VTABLE_ENTRY:
2508 return &elf32_frv_vtentry_howto;
2509 }
2510
2511 return NULL;
2512 }
2513
2514 static reloc_howto_type *
2515 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2516 {
2517 unsigned int i;
2518
2519 for (i = 0;
2520 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2521 i++)
2522 if (elf32_frv_howto_table[i].name != NULL
2523 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2524 return &elf32_frv_howto_table[i];
2525
2526 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2527 return &elf32_frv_vtinherit_howto;
2528 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2529 return &elf32_frv_vtentry_howto;
2530
2531 return NULL;
2532 }
2533
2534 /* Set the howto pointer for an FRV ELF reloc. */
2535
2536 static bfd_boolean
2537 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2538 arelent *cache_ptr,
2539 Elf_Internal_Rela *dst)
2540 {
2541 unsigned int r_type;
2542
2543 r_type = ELF32_R_TYPE (dst->r_info);
2544 switch (r_type)
2545 {
2546 case R_FRV_GNU_VTINHERIT:
2547 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2548 break;
2549
2550 case R_FRV_GNU_VTENTRY:
2551 cache_ptr->howto = &elf32_frv_vtentry_howto;
2552 break;
2553
2554 default:
2555 if (r_type >= ARRAY_SIZE (elf32_frv_howto_table))
2556 {
2557 /* xgettext:c-format */
2558 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2559 abfd, r_type);
2560 bfd_set_error (bfd_error_bad_value);
2561 return FALSE;
2562 }
2563 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2564 break;
2565 }
2566 return TRUE;
2567 }
2568
2569 /* Set the howto pointer for an FRV ELF REL reloc. */
2570
2571 static bfd_boolean
2572 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2573 arelent *cache_ptr, Elf_Internal_Rela *dst)
2574 {
2575 unsigned int r_type;
2576
2577 r_type = ELF32_R_TYPE (dst->r_info);
2578 switch (r_type)
2579 {
2580 case R_FRV_32:
2581 cache_ptr->howto = &elf32_frv_rel_32_howto;
2582 break;
2583
2584 case R_FRV_FUNCDESC:
2585 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2586 break;
2587
2588 case R_FRV_FUNCDESC_VALUE:
2589 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2590 break;
2591
2592 case R_FRV_TLSDESC_VALUE:
2593 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2594 break;
2595
2596 case R_FRV_TLSOFF:
2597 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2598 break;
2599
2600 default:
2601 cache_ptr->howto = NULL;
2602 return FALSE;
2603 }
2604 return TRUE;
2605 }
2606 \f
2607 /* Perform a single relocation. By default we use the standard BFD
2608 routines, but a few relocs, we have to do them ourselves. */
2609
2610 static bfd_reloc_status_type
2611 frv_final_link_relocate (reloc_howto_type *howto,
2612 bfd *input_bfd,
2613 asection *input_section,
2614 bfd_byte *contents,
2615 Elf_Internal_Rela *rel,
2616 bfd_vma relocation)
2617 {
2618 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2619 contents, rel->r_offset, relocation,
2620 rel->r_addend);
2621 }
2622
2623 \f
2624 /* Relocate an FRV ELF section.
2625
2626 The RELOCATE_SECTION function is called by the new ELF backend linker
2627 to handle the relocations for a section.
2628
2629 The relocs are always passed as Rela structures; if the section
2630 actually uses Rel structures, the r_addend field will always be
2631 zero.
2632
2633 This function is responsible for adjusting the section contents as
2634 necessary, and (if using Rela relocs and generating a relocatable
2635 output file) adjusting the reloc addend as necessary.
2636
2637 This function does not have to worry about setting the reloc
2638 address or the reloc symbol index.
2639
2640 LOCAL_SYMS is a pointer to the swapped in local symbols.
2641
2642 LOCAL_SECTIONS is an array giving the section in the input file
2643 corresponding to the st_shndx field of each local symbol.
2644
2645 The global hash table entry for the global symbols can be found
2646 via elf_sym_hashes (input_bfd).
2647
2648 When generating relocatable output, this function must handle
2649 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2650 going to be the section symbol corresponding to the output
2651 section, which means that the addend must be adjusted
2652 accordingly. */
2653
2654 static bfd_boolean
2655 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2656 struct bfd_link_info *info,
2657 bfd *input_bfd,
2658 asection *input_section,
2659 bfd_byte *contents,
2660 Elf_Internal_Rela *relocs,
2661 Elf_Internal_Sym *local_syms,
2662 asection **local_sections)
2663 {
2664 Elf_Internal_Shdr *symtab_hdr;
2665 struct elf_link_hash_entry **sym_hashes;
2666 Elf_Internal_Rela *rel;
2667 Elf_Internal_Rela *relend;
2668 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2669 check_segment[2];
2670 int silence_segment_error = !bfd_link_pic (info);
2671 unsigned long insn;
2672
2673 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2674 sym_hashes = elf_sym_hashes (input_bfd);
2675 relend = relocs + input_section->reloc_count;
2676
2677 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2678 input_section->output_section);
2679 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2680 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2681 frvfdpic_got_section (info)
2682 ->output_section);
2683 else
2684 got_segment = -1;
2685 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2686 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2687 frvfdpic_gotfixup_section (info)
2688 ->output_section);
2689 else
2690 gprel_segment = -1;
2691 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2692 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2693 frvfdpic_plt_section (info)
2694 ->output_section);
2695 else
2696 plt_segment = -1;
2697 if (elf_hash_table (info)->tls_sec)
2698 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2699 elf_hash_table (info)->tls_sec);
2700 else
2701 tls_segment = -1;
2702
2703 for (rel = relocs; rel < relend; rel ++)
2704 {
2705 reloc_howto_type *howto;
2706 unsigned long r_symndx;
2707 Elf_Internal_Sym *sym;
2708 asection *sec;
2709 struct elf_link_hash_entry *h;
2710 bfd_vma relocation;
2711 bfd_reloc_status_type r;
2712 const char *name;
2713 int r_type;
2714 asection *osec;
2715 struct frvfdpic_relocs_info *picrel;
2716 bfd_vma orig_addend = rel->r_addend;
2717
2718 r_type = ELF32_R_TYPE (rel->r_info);
2719
2720 if ( r_type == R_FRV_GNU_VTINHERIT
2721 || r_type == R_FRV_GNU_VTENTRY)
2722 continue;
2723
2724 r_symndx = ELF32_R_SYM (rel->r_info);
2725 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2726 h = NULL;
2727 sym = NULL;
2728 sec = NULL;
2729
2730 if (r_symndx < symtab_hdr->sh_info)
2731 {
2732 sym = local_syms + r_symndx;
2733 osec = sec = local_sections [r_symndx];
2734 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2735
2736 name = bfd_elf_string_from_elf_section
2737 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2738 if (name == NULL || name[0] == 0)
2739 name = bfd_section_name (input_bfd, sec);
2740 }
2741 else
2742 {
2743 bfd_boolean warned, ignored;
2744 bfd_boolean unresolved_reloc;
2745
2746 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2747 r_symndx, symtab_hdr, sym_hashes,
2748 h, sec, relocation,
2749 unresolved_reloc, warned, ignored);
2750 osec = sec;
2751 name = h->root.root.string;
2752 }
2753
2754 if (sec != NULL && discarded_section (sec))
2755 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2756 rel, 1, relend, howto, 0, contents);
2757
2758 if (bfd_link_relocatable (info))
2759 continue;
2760
2761 if (r_type != R_FRV_TLSMOFF
2762 && h != NULL
2763 && (h->root.type == bfd_link_hash_defined
2764 || h->root.type == bfd_link_hash_defweak)
2765 && !FRVFDPIC_SYM_LOCAL (info, h))
2766 {
2767 osec = sec = NULL;
2768 relocation = 0;
2769 }
2770
2771 switch (r_type)
2772 {
2773 case R_FRV_LABEL24:
2774 case R_FRV_32:
2775 if (! IS_FDPIC (output_bfd))
2776 goto non_fdpic;
2777 /* Fall through. */
2778
2779 case R_FRV_GOT12:
2780 case R_FRV_GOTHI:
2781 case R_FRV_GOTLO:
2782 case R_FRV_FUNCDESC_GOT12:
2783 case R_FRV_FUNCDESC_GOTHI:
2784 case R_FRV_FUNCDESC_GOTLO:
2785 case R_FRV_GOTOFF12:
2786 case R_FRV_GOTOFFHI:
2787 case R_FRV_GOTOFFLO:
2788 case R_FRV_FUNCDESC_GOTOFF12:
2789 case R_FRV_FUNCDESC_GOTOFFHI:
2790 case R_FRV_FUNCDESC_GOTOFFLO:
2791 case R_FRV_FUNCDESC:
2792 case R_FRV_FUNCDESC_VALUE:
2793 case R_FRV_GETTLSOFF:
2794 case R_FRV_TLSDESC_VALUE:
2795 case R_FRV_GOTTLSDESC12:
2796 case R_FRV_GOTTLSDESCHI:
2797 case R_FRV_GOTTLSDESCLO:
2798 case R_FRV_TLSMOFF12:
2799 case R_FRV_TLSMOFFHI:
2800 case R_FRV_TLSMOFFLO:
2801 case R_FRV_GOTTLSOFF12:
2802 case R_FRV_GOTTLSOFFHI:
2803 case R_FRV_GOTTLSOFFLO:
2804 case R_FRV_TLSOFF:
2805 case R_FRV_TLSDESC_RELAX:
2806 case R_FRV_GETTLSOFF_RELAX:
2807 case R_FRV_TLSOFF_RELAX:
2808 case R_FRV_TLSMOFF:
2809 if (h != NULL)
2810 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info
2811 (info), input_bfd, h,
2812 orig_addend, INSERT);
2813 else
2814 /* In order to find the entry we created before, we must
2815 use the original addend, not the one that may have been
2816 modified by _bfd_elf_rela_local_sym(). */
2817 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
2818 (info), input_bfd, r_symndx,
2819 orig_addend, INSERT);
2820 if (! picrel)
2821 return FALSE;
2822
2823 if (!_frvfdpic_emit_got_relocs_plt_entries (picrel, output_bfd, info,
2824 osec, sym,
2825 rel->r_addend))
2826 {
2827 info->callbacks->einfo
2828 /* xgettext:c-format */
2829 (_("%H: relocation to `%s+%v'"
2830 " may have caused the error above\n"),
2831 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2832 return FALSE;
2833 }
2834
2835 break;
2836
2837 default:
2838 non_fdpic:
2839 picrel = NULL;
2840 if (h
2841 && ! FRVFDPIC_SYM_LOCAL (info, h)
2842 && _bfd_elf_section_offset (output_bfd, info, input_section,
2843 rel->r_offset) != (bfd_vma) -1)
2844 {
2845 info->callbacks->einfo
2846 (_("%H: relocation references symbol"
2847 " not defined in the module\n"),
2848 input_bfd, input_section, rel->r_offset);
2849 return FALSE;
2850 }
2851 break;
2852 }
2853
2854 switch (r_type)
2855 {
2856 case R_FRV_GETTLSOFF:
2857 case R_FRV_TLSDESC_VALUE:
2858 case R_FRV_GOTTLSDESC12:
2859 case R_FRV_GOTTLSDESCHI:
2860 case R_FRV_GOTTLSDESCLO:
2861 case R_FRV_TLSMOFF12:
2862 case R_FRV_TLSMOFFHI:
2863 case R_FRV_TLSMOFFLO:
2864 case R_FRV_GOTTLSOFF12:
2865 case R_FRV_GOTTLSOFFHI:
2866 case R_FRV_GOTTLSOFFLO:
2867 case R_FRV_TLSOFF:
2868 case R_FRV_TLSDESC_RELAX:
2869 case R_FRV_GETTLSOFF_RELAX:
2870 case R_FRV_TLSOFF_RELAX:
2871 case R_FRV_TLSMOFF:
2872 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2873 relocation += tls_biased_base (info);
2874 break;
2875
2876 default:
2877 break;
2878 }
2879
2880 /* Try to apply TLS relaxations. */
2881 if (1)
2882 switch (r_type)
2883 {
2884
2885 #define LOCAL_EXEC_P(info, picrel) \
2886 (bfd_link_executable (info) \
2887 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2888 #define INITIAL_EXEC_P(info, picrel) \
2889 ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2890 && (picrel)->tlsoff_entry)
2891
2892 #define IN_RANGE_FOR_OFST12_P(value) \
2893 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2894 #define IN_RANGE_FOR_SETLOS_P(value) \
2895 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2896 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2897 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2898
2899 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2900 (LOCAL_EXEC_P ((info), (picrel)) \
2901 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2902 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2903 (INITIAL_EXEC_P ((info), (picrel)) \
2904 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2905
2906 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2907 (LOCAL_EXEC_P ((info), (picrel)))
2908 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2909 (INITIAL_EXEC_P ((info), (picrel)))
2910
2911 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2912 (LOCAL_EXEC_P ((info), (picrel)) \
2913 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2914
2915 case R_FRV_GETTLSOFF:
2916 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2917
2918 /* Is this a call instruction? */
2919 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2920 {
2921 info->callbacks->einfo
2922 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2923 input_bfd, input_section, rel->r_offset);
2924 return FALSE;
2925 }
2926
2927 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2928 relocation + rel->r_addend))
2929 {
2930 /* Replace the call instruction (except the packing bit)
2931 with setlos #tlsmofflo(symbol+offset), gr9. */
2932 insn &= (unsigned long)0x80000000;
2933 insn |= (unsigned long)0x12fc0000;
2934 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2935
2936 r_type = R_FRV_TLSMOFFLO;
2937 howto = elf32_frv_howto_table + r_type;
2938 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2939 }
2940
2941 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2942 {
2943 /* Replace the call instruction (except the packing bit)
2944 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2945 insn &= (unsigned long)0x80000000;
2946 insn |= (unsigned long)0x12c8f000;
2947 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2948
2949 r_type = R_FRV_GOTTLSOFF12;
2950 howto = elf32_frv_howto_table + r_type;
2951 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2952 }
2953
2954 break;
2955
2956 case R_FRV_GOTTLSDESC12:
2957 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2958
2959 /* Is this an lddi instruction? */
2960 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2961 {
2962 info->callbacks->einfo
2963 (_("%H: R_FRV_GOTTLSDESC12"
2964 " not applied to an lddi instruction\n"),
2965 input_bfd, input_section, rel->r_offset);
2966 return FALSE;
2967 }
2968
2969 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2970 relocation + rel->r_addend)
2971 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2972 info))
2973 {
2974 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2975 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2976 Preserve the packing bit. */
2977 insn = (insn & (unsigned long)0x80000000)
2978 | ((insn + (unsigned long)0x02000000)
2979 & (unsigned long)0x7e000000);
2980 insn |= (unsigned long)0x00fc0000;
2981 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2982
2983 r_type = R_FRV_TLSMOFFLO;
2984 howto = elf32_frv_howto_table + r_type;
2985 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2986 }
2987
2988 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2989 relocation + rel->r_addend))
2990 {
2991 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2992 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2993 Preserve the packing bit. */
2994 insn = (insn & (unsigned long)0x80000000)
2995 | ((insn + (unsigned long)0x02000000)
2996 & (unsigned long)0x7e000000);
2997 insn |= (unsigned long)0x00f80000;
2998 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2999
3000 r_type = R_FRV_TLSMOFFHI;
3001 howto = elf32_frv_howto_table + r_type;
3002 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3003 }
3004
3005 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3006 {
3007 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3008 with ldi @(grB, #gottlsoff12(symbol+offset),
3009 gr<C+1>. Preserve the packing bit. If gottlsoff12
3010 overflows, we'll error out, but that's sort-of ok,
3011 since we'd started with gottlsdesc12, that's actually
3012 more demanding. Compiling with -fPIE instead of
3013 -fpie would fix it; linking with --relax should fix
3014 it as well. */
3015 insn = (insn & (unsigned long)0x80cbf000)
3016 | ((insn + (unsigned long)0x02000000)
3017 & (unsigned long)0x7e000000);
3018 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3019
3020 r_type = R_FRV_GOTTLSOFF12;
3021 howto = elf32_frv_howto_table + r_type;
3022 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3023 }
3024
3025 break;
3026
3027 case R_FRV_GOTTLSDESCHI:
3028 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3029
3030 /* Is this a sethi instruction? */
3031 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3032 {
3033 info->callbacks->einfo
3034 (_("%H: R_FRV_GOTTLSDESCHI"
3035 " not applied to a sethi instruction\n"),
3036 input_bfd, input_section, rel->r_offset);
3037 return FALSE;
3038 }
3039
3040 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3041 relocation + rel->r_addend)
3042 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3043 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3044 {
3045 /* Replace sethi with a nop. Preserve the packing bit. */
3046 insn &= (unsigned long)0x80000000;
3047 insn |= (unsigned long)0x00880000;
3048 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3049
3050 /* Nothing to relocate. */
3051 continue;
3052 }
3053
3054 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3055 {
3056 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3057 r_type = R_FRV_GOTTLSOFFHI;
3058 howto = elf32_frv_howto_table + r_type;
3059 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3060 }
3061
3062 break;
3063
3064 case R_FRV_GOTTLSDESCLO:
3065 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3066
3067 /* Is this a setlo or setlos instruction? */
3068 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3069 {
3070 info->callbacks->einfo
3071 (_("%H: R_FRV_GOTTLSDESCLO"
3072 " not applied to a setlo or setlos instruction\n"),
3073 input_bfd, input_section, rel->r_offset);
3074 return FALSE;
3075 }
3076
3077 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3078 relocation + rel->r_addend)
3079 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3080 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3081 {
3082 /* Replace setlo/setlos with a nop. Preserve the
3083 packing bit. */
3084 insn &= (unsigned long)0x80000000;
3085 insn |= (unsigned long)0x00880000;
3086 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3087
3088 /* Nothing to relocate. */
3089 continue;
3090 }
3091
3092 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3093 {
3094 /* If the corresponding sethi (if it exists) decayed
3095 to a nop, make sure this becomes (or already is) a
3096 setlos, not setlo. */
3097 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3098 {
3099 insn |= (unsigned long)0x00080000;
3100 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3101 }
3102
3103 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3104 r_type = R_FRV_GOTTLSOFFLO;
3105 howto = elf32_frv_howto_table + r_type;
3106 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3107 }
3108
3109 break;
3110
3111 case R_FRV_TLSDESC_RELAX:
3112 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3113
3114 /* Is this an ldd instruction? */
3115 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3116 {
3117 info->callbacks->einfo
3118 (_("%H: R_FRV_TLSDESC_RELAX"
3119 " not applied to an ldd instruction\n"),
3120 input_bfd, input_section, rel->r_offset);
3121 return FALSE;
3122 }
3123
3124 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3125 relocation + rel->r_addend)
3126 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3127 info))
3128 {
3129 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3130 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3131 Preserve the packing bit. */
3132 insn = (insn & (unsigned long)0x80000000)
3133 | ((insn + (unsigned long)0x02000000)
3134 & (unsigned long)0x7e000000);
3135 insn |= (unsigned long)0x00fc0000;
3136 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3137
3138 r_type = R_FRV_TLSMOFFLO;
3139 howto = elf32_frv_howto_table + r_type;
3140 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3141 }
3142
3143 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3144 relocation + rel->r_addend))
3145 {
3146 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3147 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3148 Preserve the packing bit. */
3149 insn = (insn & (unsigned long)0x80000000)
3150 | ((insn + (unsigned long)0x02000000)
3151 & (unsigned long)0x7e000000);
3152 insn |= (unsigned long)0x00f80000;
3153 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3154
3155 r_type = R_FRV_TLSMOFFHI;
3156 howto = elf32_frv_howto_table + r_type;
3157 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3158 }
3159
3160 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3161 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3162 {
3163 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3164 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3165 Preserve the packing bit. */
3166 insn = (insn & (unsigned long)0x8003f000)
3167 | (unsigned long)0x00c80000
3168 | ((insn + (unsigned long)0x02000000)
3169 & (unsigned long)0x7e000000);
3170 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3171
3172 r_type = R_FRV_GOTTLSOFF12;
3173 howto = elf32_frv_howto_table + r_type;
3174 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3175 }
3176
3177 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3178 {
3179 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3180 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3181 Preserve the packing bit. */
3182 insn = (insn & (unsigned long)0x81ffffbf)
3183 | ((insn + (unsigned long)0x02000000)
3184 & (unsigned long)0x7e000000);
3185 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3186
3187 /* #tlsoff(symbol+offset) is just a relaxation
3188 annotation, so there's nothing left to
3189 relocate. */
3190 continue;
3191 }
3192
3193 break;
3194
3195 case R_FRV_GETTLSOFF_RELAX:
3196 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3197
3198 /* Is this a calll or callil instruction? */
3199 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3200 {
3201 info->callbacks->einfo
3202 (_("%H: R_FRV_GETTLSOFF_RELAX"
3203 " not applied to a calll instruction\n"),
3204 input_bfd, input_section, rel->r_offset);
3205 return FALSE;
3206 }
3207
3208 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3209 relocation + rel->r_addend)
3210 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3211 info))
3212 {
3213 /* Replace calll with a nop. Preserve the packing bit. */
3214 insn &= (unsigned long)0x80000000;
3215 insn |= (unsigned long)0x00880000;
3216 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3217
3218 /* Nothing to relocate. */
3219 continue;
3220 }
3221
3222 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3223 relocation + rel->r_addend))
3224 {
3225 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3226 Preserve the packing bit. */
3227 insn &= (unsigned long)0x80000000;
3228 insn |= (unsigned long)0x12f40000;
3229 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3230
3231 r_type = R_FRV_TLSMOFFLO;
3232 howto = elf32_frv_howto_table + r_type;
3233 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3234 }
3235
3236 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3237 {
3238 /* Replace calll with a nop. Preserve the packing bit. */
3239 insn &= (unsigned long)0x80000000;
3240 insn |= (unsigned long)0x00880000;
3241 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3242
3243 /* Nothing to relocate. */
3244 continue;
3245 }
3246
3247 break;
3248
3249 case R_FRV_GOTTLSOFF12:
3250 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3251
3252 /* Is this an ldi instruction? */
3253 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3254 {
3255 info->callbacks->einfo
3256 (_("%H: R_FRV_GOTTLSOFF12"
3257 " not applied to an ldi instruction\n"),
3258 input_bfd, input_section, rel->r_offset);
3259 return FALSE;
3260 }
3261
3262 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3263 relocation + rel->r_addend))
3264 {
3265 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3266 with setlos #tlsmofflo(symbol+offset), grC.
3267 Preserve the packing bit. */
3268 insn &= (unsigned long)0xfe000000;
3269 insn |= (unsigned long)0x00fc0000;
3270 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3271
3272 r_type = R_FRV_TLSMOFFLO;
3273 howto = elf32_frv_howto_table + r_type;
3274 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3275 }
3276
3277 break;
3278
3279 case R_FRV_GOTTLSOFFHI:
3280 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3281
3282 /* Is this a sethi instruction? */
3283 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3284 {
3285 info->callbacks->einfo
3286 (_("%H: R_FRV_GOTTLSOFFHI"
3287 " not applied to a sethi instruction\n"),
3288 input_bfd, input_section, rel->r_offset);
3289 return FALSE;
3290 }
3291
3292 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3293 relocation + rel->r_addend)
3294 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3295 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3296 {
3297 /* Replace sethi with a nop. Preserve the packing bit. */
3298 insn &= (unsigned long)0x80000000;
3299 insn |= (unsigned long)0x00880000;
3300 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3301
3302 /* Nothing to relocate. */
3303 continue;
3304 }
3305
3306 break;
3307
3308 case R_FRV_GOTTLSOFFLO:
3309 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3310
3311 /* Is this a setlo or setlos instruction? */
3312 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3313 {
3314 info->callbacks->einfo
3315 (_("%H: R_FRV_GOTTLSOFFLO"
3316 " not applied to a setlo or setlos instruction\n"),
3317 input_bfd, input_section, rel->r_offset);
3318 return FALSE;
3319 }
3320
3321 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3322 relocation + rel->r_addend)
3323 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3324 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3325 {
3326 /* Replace setlo/setlos with a nop. Preserve the
3327 packing bit. */
3328 insn &= (unsigned long)0x80000000;
3329 insn |= (unsigned long)0x00880000;
3330 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3331
3332 /* Nothing to relocate. */
3333 continue;
3334 }
3335
3336 break;
3337
3338 case R_FRV_TLSOFF_RELAX:
3339 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3340
3341 /* Is this an ld instruction? */
3342 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3343 {
3344 info->callbacks->einfo
3345 (_("%H: R_FRV_TLSOFF_RELAX"
3346 " not applied to an ld instruction\n"),
3347 input_bfd, input_section, rel->r_offset);
3348 return FALSE;
3349 }
3350
3351 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3352 relocation + rel->r_addend))
3353 {
3354 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3355 with setlos #tlsmofflo(symbol+offset), grC.
3356 Preserve the packing bit. */
3357 insn &= (unsigned long)0xfe000000;
3358 insn |= (unsigned long)0x00fc0000;
3359 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3360
3361 r_type = R_FRV_TLSMOFFLO;
3362 howto = elf32_frv_howto_table + r_type;
3363 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3364 }
3365
3366 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3367 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3368 {
3369 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3370 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3371 Preserve the packing bit. */
3372 insn = (insn & (unsigned long)0xfe03f000)
3373 | (unsigned long)0x00c80000;
3374 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3375
3376 r_type = R_FRV_GOTTLSOFF12;
3377 howto = elf32_frv_howto_table + r_type;
3378 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3379 }
3380
3381 break;
3382
3383 case R_FRV_TLSMOFFHI:
3384 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3385
3386 /* Is this a sethi instruction? */
3387 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3388 {
3389 info->callbacks->einfo
3390 (_("%H: R_FRV_TLSMOFFHI"
3391 " not applied to a sethi instruction\n"),
3392 input_bfd, input_section, rel->r_offset);
3393 return FALSE;
3394 }
3395
3396 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3397 info))
3398 {
3399 /* Replace sethi with a nop. Preserve the packing bit. */
3400 insn &= (unsigned long)0x80000000;
3401 insn |= (unsigned long)0x00880000;
3402 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3403
3404 /* Nothing to relocate. */
3405 continue;
3406 }
3407
3408 break;
3409
3410 case R_FRV_TLSMOFFLO:
3411 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3412
3413 /* Is this a setlo or setlos instruction? */
3414 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3415 {
3416 info->callbacks->einfo
3417 (_("R_FRV_TLSMOFFLO"
3418 " not applied to a setlo or setlos instruction\n"),
3419 input_bfd, input_section, rel->r_offset);
3420 return FALSE;
3421 }
3422
3423 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3424 info))
3425 /* If the corresponding sethi (if it exists) decayed
3426 to a nop, make sure this becomes (or already is) a
3427 setlos, not setlo. */
3428 {
3429 insn |= (unsigned long)0x00080000;
3430 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3431 }
3432
3433 break;
3434
3435 /*
3436 There's nothing to relax in these:
3437 R_FRV_TLSDESC_VALUE
3438 R_FRV_TLSOFF
3439 R_FRV_TLSMOFF12
3440 R_FRV_TLSMOFFHI
3441 R_FRV_TLSMOFFLO
3442 R_FRV_TLSMOFF
3443 */
3444
3445 default:
3446 break;
3447 }
3448
3449 switch (r_type)
3450 {
3451 case R_FRV_LABEL24:
3452 check_segment[0] = isec_segment;
3453 if (! IS_FDPIC (output_bfd))
3454 check_segment[1] = isec_segment;
3455 else if (picrel->plt)
3456 {
3457 relocation = frvfdpic_plt_section (info)->output_section->vma
3458 + frvfdpic_plt_section (info)->output_offset
3459 + picrel->plt_entry;
3460 check_segment[1] = plt_segment;
3461 }
3462 /* We don't want to warn on calls to undefined weak symbols,
3463 as calls to them must be protected by non-NULL tests
3464 anyway, and unprotected calls would invoke undefined
3465 behavior. */
3466 else if (picrel->symndx == -1
3467 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3468 check_segment[1] = check_segment[0];
3469 else
3470 check_segment[1] = sec
3471 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3472 : (unsigned)-1;
3473 break;
3474
3475 case R_FRV_GOT12:
3476 case R_FRV_GOTHI:
3477 case R_FRV_GOTLO:
3478 relocation = picrel->got_entry;
3479 check_segment[0] = check_segment[1] = got_segment;
3480 break;
3481
3482 case R_FRV_FUNCDESC_GOT12:
3483 case R_FRV_FUNCDESC_GOTHI:
3484 case R_FRV_FUNCDESC_GOTLO:
3485 relocation = picrel->fdgot_entry;
3486 check_segment[0] = check_segment[1] = got_segment;
3487 break;
3488
3489 case R_FRV_GOTOFFHI:
3490 case R_FRV_GOTOFF12:
3491 case R_FRV_GOTOFFLO:
3492 relocation -= frvfdpic_got_section (info)->output_section->vma
3493 + frvfdpic_got_section (info)->output_offset
3494 + frvfdpic_got_initial_offset (info);
3495 check_segment[0] = got_segment;
3496 check_segment[1] = sec
3497 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3498 : (unsigned)-1;
3499 break;
3500
3501 case R_FRV_FUNCDESC_GOTOFF12:
3502 case R_FRV_FUNCDESC_GOTOFFHI:
3503 case R_FRV_FUNCDESC_GOTOFFLO:
3504 relocation = picrel->fd_entry;
3505 check_segment[0] = check_segment[1] = got_segment;
3506 break;
3507
3508 case R_FRV_FUNCDESC:
3509 {
3510 int dynindx;
3511 bfd_vma addend = rel->r_addend;
3512
3513 if (! (h && h->root.type == bfd_link_hash_undefweak
3514 && FRVFDPIC_SYM_LOCAL (info, h)))
3515 {
3516 /* If the symbol is dynamic and there may be dynamic
3517 symbol resolution because we are or are linked with a
3518 shared library, emit a FUNCDESC relocation such that
3519 the dynamic linker will allocate the function
3520 descriptor. If the symbol needs a non-local function
3521 descriptor but binds locally (e.g., its visibility is
3522 protected, emit a dynamic relocation decayed to
3523 section+offset. */
3524 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3525 && FRVFDPIC_SYM_LOCAL (info, h)
3526 && !bfd_link_pde (info))
3527 {
3528 dynindx = elf_section_data (h->root.u.def.section
3529 ->output_section)->dynindx;
3530 addend += h->root.u.def.section->output_offset
3531 + h->root.u.def.value;
3532 }
3533 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3534 {
3535 if (addend)
3536 {
3537 info->callbacks->einfo
3538 (_("%H: %s references dynamic symbol"
3539 " with nonzero addend\n"),
3540 input_bfd, input_section, rel->r_offset,
3541 "R_FRV_FUNCDESC");
3542 return FALSE;
3543 }
3544 dynindx = h->dynindx;
3545 }
3546 else
3547 {
3548 /* Otherwise, we know we have a private function
3549 descriptor, so reference it directly. */
3550 BFD_ASSERT (picrel->privfd);
3551 r_type = R_FRV_32;
3552 dynindx = elf_section_data (frvfdpic_got_section (info)
3553 ->output_section)->dynindx;
3554 addend = frvfdpic_got_section (info)->output_offset
3555 + frvfdpic_got_initial_offset (info)
3556 + picrel->fd_entry;
3557 }
3558
3559 /* If there is room for dynamic symbol resolution, emit
3560 the dynamic relocation. However, if we're linking an
3561 executable at a fixed location, we won't have emitted a
3562 dynamic symbol entry for the got section, so idx will
3563 be zero, which means we can and should compute the
3564 address of the private descriptor ourselves. */
3565 if (bfd_link_pde (info)
3566 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3567 {
3568 addend += frvfdpic_got_section (info)->output_section->vma;
3569 if ((bfd_get_section_flags (output_bfd,
3570 input_section->output_section)
3571 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3572 {
3573 bfd_vma offset;
3574
3575 if (_frvfdpic_osec_readonly_p (output_bfd,
3576 input_section
3577 ->output_section))
3578 {
3579 info->callbacks->einfo
3580 (_("%H: cannot emit fixups"
3581 " in read-only section\n"),
3582 input_bfd, input_section, rel->r_offset);
3583 return FALSE;
3584 }
3585
3586 offset = _bfd_elf_section_offset
3587 (output_bfd, info,
3588 input_section, rel->r_offset);
3589
3590 if (offset != (bfd_vma)-1)
3591 _frvfdpic_add_rofixup (output_bfd,
3592 frvfdpic_gotfixup_section
3593 (info),
3594 offset + input_section
3595 ->output_section->vma
3596 + input_section->output_offset,
3597 picrel);
3598 }
3599 }
3600 else if ((bfd_get_section_flags (output_bfd,
3601 input_section->output_section)
3602 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3603 {
3604 bfd_vma offset;
3605
3606 if (_frvfdpic_osec_readonly_p (output_bfd,
3607 input_section
3608 ->output_section))
3609 {
3610 info->callbacks->einfo
3611 (_("%H: cannot emit dynamic relocations"
3612 " in read-only section\n"),
3613 input_bfd, input_section, rel->r_offset);
3614 return FALSE;
3615 }
3616
3617 offset = _bfd_elf_section_offset
3618 (output_bfd, info,
3619 input_section, rel->r_offset);
3620
3621 if (offset != (bfd_vma)-1)
3622 _frvfdpic_add_dyn_reloc (output_bfd,
3623 frvfdpic_gotrel_section (info),
3624 offset + input_section
3625 ->output_section->vma
3626 + input_section->output_offset,
3627 r_type, dynindx, addend, picrel);
3628 }
3629 else
3630 addend += frvfdpic_got_section (info)->output_section->vma;
3631 }
3632
3633 /* We want the addend in-place because dynamic
3634 relocations are REL. Setting relocation to it should
3635 arrange for it to be installed. */
3636 relocation = addend - rel->r_addend;
3637 }
3638 check_segment[0] = check_segment[1] = got_segment;
3639 break;
3640
3641 case R_FRV_32:
3642 if (! IS_FDPIC (output_bfd))
3643 {
3644 check_segment[0] = check_segment[1] = -1;
3645 break;
3646 }
3647 /* Fall through. */
3648 case R_FRV_FUNCDESC_VALUE:
3649 {
3650 int dynindx;
3651 bfd_vma addend = rel->r_addend;
3652
3653 /* If the symbol is dynamic but binds locally, use
3654 section+offset. */
3655 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3656 {
3657 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3658 {
3659 info->callbacks->einfo
3660 (_("%H: %s references dynamic symbol"
3661 " with nonzero addend\n"),
3662 input_bfd, input_section, rel->r_offset,
3663 "R_FRV_FUNCDESC_VALUE");
3664 return FALSE;
3665 }
3666 dynindx = h->dynindx;
3667 }
3668 else
3669 {
3670 if (h)
3671 addend += h->root.u.def.value;
3672 else
3673 addend += sym->st_value;
3674 if (osec)
3675 addend += osec->output_offset;
3676 if (osec && osec->output_section
3677 && ! bfd_is_abs_section (osec->output_section)
3678 && ! bfd_is_und_section (osec->output_section))
3679 dynindx = elf_section_data (osec->output_section)->dynindx;
3680 else
3681 dynindx = 0;
3682 }
3683
3684 /* If we're linking an executable at a fixed address, we
3685 can omit the dynamic relocation as long as the symbol
3686 is defined in the current link unit (which is implied
3687 by its output section not being NULL). */
3688 if (bfd_link_pde (info)
3689 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3690 {
3691 if (osec)
3692 addend += osec->output_section->vma;
3693 if (IS_FDPIC (input_bfd)
3694 && (bfd_get_section_flags (output_bfd,
3695 input_section->output_section)
3696 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3697 {
3698 if (_frvfdpic_osec_readonly_p (output_bfd,
3699 input_section
3700 ->output_section))
3701 {
3702 info->callbacks->einfo
3703 (_("%H: cannot emit fixups in read-only section\n"),
3704 input_bfd, input_section, rel->r_offset);
3705 return FALSE;
3706 }
3707 if (!h || h->root.type != bfd_link_hash_undefweak)
3708 {
3709 bfd_vma offset = _bfd_elf_section_offset
3710 (output_bfd, info,
3711 input_section, rel->r_offset);
3712
3713 if (offset != (bfd_vma)-1)
3714 {
3715 _frvfdpic_add_rofixup (output_bfd,
3716 frvfdpic_gotfixup_section
3717 (info),
3718 offset + input_section
3719 ->output_section->vma
3720 + input_section->output_offset,
3721 picrel);
3722 if (r_type == R_FRV_FUNCDESC_VALUE)
3723 _frvfdpic_add_rofixup
3724 (output_bfd,
3725 frvfdpic_gotfixup_section (info),
3726 offset
3727 + input_section->output_section->vma
3728 + input_section->output_offset + 4, picrel);
3729 }
3730 }
3731 }
3732 }
3733 else
3734 {
3735 if ((bfd_get_section_flags (output_bfd,
3736 input_section->output_section)
3737 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3738 {
3739 bfd_vma offset;
3740
3741 if (_frvfdpic_osec_readonly_p (output_bfd,
3742 input_section
3743 ->output_section))
3744 {
3745 info->callbacks->einfo
3746 (_("%H: cannot emit dynamic relocations"
3747 " in read-only section\n"),
3748 input_bfd, input_section, rel->r_offset);
3749 return FALSE;
3750 }
3751
3752 offset = _bfd_elf_section_offset
3753 (output_bfd, info,
3754 input_section, rel->r_offset);
3755
3756 if (offset != (bfd_vma)-1)
3757 _frvfdpic_add_dyn_reloc (output_bfd,
3758 frvfdpic_gotrel_section (info),
3759 offset + input_section
3760 ->output_section->vma
3761 + input_section->output_offset,
3762 r_type, dynindx, addend, picrel);
3763 }
3764 else if (osec)
3765 addend += osec->output_section->vma;
3766 /* We want the addend in-place because dynamic
3767 relocations are REL. Setting relocation to it
3768 should arrange for it to be installed. */
3769 relocation = addend - rel->r_addend;
3770 }
3771
3772 if (r_type == R_FRV_FUNCDESC_VALUE)
3773 {
3774 /* If we've omitted the dynamic relocation, just emit
3775 the fixed addresses of the symbol and of the local
3776 GOT base offset. */
3777 if (bfd_link_pde (info)
3778 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3779 bfd_put_32 (output_bfd,
3780 frvfdpic_got_section (info)->output_section->vma
3781 + frvfdpic_got_section (info)->output_offset
3782 + frvfdpic_got_initial_offset (info),
3783 contents + rel->r_offset + 4);
3784 else
3785 /* A function descriptor used for lazy or local
3786 resolving is initialized such that its high word
3787 contains the output section index in which the
3788 PLT entries are located, and the low word
3789 contains the offset of the lazy PLT entry entry
3790 point into that section. */
3791 bfd_put_32 (output_bfd,
3792 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3793 ? 0
3794 : _frvfdpic_osec_to_segment (output_bfd,
3795 sec
3796 ->output_section),
3797 contents + rel->r_offset + 4);
3798 }
3799 }
3800 check_segment[0] = check_segment[1] = got_segment;
3801 break;
3802
3803 case R_FRV_GPREL12:
3804 case R_FRV_GPRELU12:
3805 case R_FRV_GPREL32:
3806 case R_FRV_GPRELHI:
3807 case R_FRV_GPRELLO:
3808 check_segment[0] = gprel_segment;
3809 check_segment[1] = sec
3810 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3811 : (unsigned)-1;
3812 break;
3813
3814 case R_FRV_GETTLSOFF:
3815 relocation = frvfdpic_plt_section (info)->output_section->vma
3816 + frvfdpic_plt_section (info)->output_offset
3817 + picrel->tlsplt_entry;
3818 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3819 && picrel->tlsdesc_entry);
3820 check_segment[0] = isec_segment;
3821 check_segment[1] = plt_segment;
3822 break;
3823
3824 case R_FRV_GOTTLSDESC12:
3825 case R_FRV_GOTTLSDESCHI:
3826 case R_FRV_GOTTLSDESCLO:
3827 BFD_ASSERT (picrel->tlsdesc_entry);
3828 relocation = picrel->tlsdesc_entry;
3829 check_segment[0] = tls_segment;
3830 check_segment[1] = sec
3831 && ! bfd_is_abs_section (sec)
3832 && ! bfd_is_und_section (sec)
3833 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3834 : tls_segment;
3835 break;
3836
3837 case R_FRV_TLSMOFF12:
3838 case R_FRV_TLSMOFFHI:
3839 case R_FRV_TLSMOFFLO:
3840 case R_FRV_TLSMOFF:
3841 check_segment[0] = tls_segment;
3842 if (! sec)
3843 check_segment[1] = -1;
3844 else if (bfd_is_abs_section (sec)
3845 || bfd_is_und_section (sec))
3846 {
3847 relocation = 0;
3848 check_segment[1] = tls_segment;
3849 }
3850 else if (sec->output_section)
3851 {
3852 relocation -= tls_biased_base (info);
3853 check_segment[1] =
3854 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3855 }
3856 else
3857 check_segment[1] = -1;
3858 break;
3859
3860 case R_FRV_GOTTLSOFF12:
3861 case R_FRV_GOTTLSOFFHI:
3862 case R_FRV_GOTTLSOFFLO:
3863 BFD_ASSERT (picrel->tlsoff_entry);
3864 relocation = picrel->tlsoff_entry;
3865 check_segment[0] = tls_segment;
3866 check_segment[1] = sec
3867 && ! bfd_is_abs_section (sec)
3868 && ! bfd_is_und_section (sec)
3869 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3870 : tls_segment;
3871 break;
3872
3873 case R_FRV_TLSDESC_VALUE:
3874 case R_FRV_TLSOFF:
3875 /* These shouldn't be present in input object files. */
3876 check_segment[0] = check_segment[1] = isec_segment;
3877 break;
3878
3879 case R_FRV_TLSDESC_RELAX:
3880 case R_FRV_GETTLSOFF_RELAX:
3881 case R_FRV_TLSOFF_RELAX:
3882 /* These are just annotations for relaxation, nothing to do
3883 here. */
3884 continue;
3885
3886 default:
3887 check_segment[0] = isec_segment;
3888 check_segment[1] = sec
3889 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3890 : (unsigned)-1;
3891 break;
3892 }
3893
3894 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3895 {
3896 /* If you take this out, remove the #error from fdpic-static-6.d
3897 in the ld testsuite. */
3898 /* This helps catch problems in GCC while we can't do more
3899 than static linking. The idea is to test whether the
3900 input file basename is crt0.o only once. */
3901 if (silence_segment_error == 1)
3902 silence_segment_error =
3903 (strlen (input_bfd->filename) == 6
3904 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3905 || (strlen (input_bfd->filename) > 6
3906 && filename_cmp (input_bfd->filename
3907 + strlen (input_bfd->filename) - 7,
3908 "/crt0.o") == 0)
3909 ? -1 : 0;
3910 if (!silence_segment_error
3911 /* We don't want duplicate errors for undefined
3912 symbols. */
3913 && !(picrel && picrel->symndx == -1
3914 && picrel->d.h->root.type == bfd_link_hash_undefined))
3915 {
3916 info->callbacks->einfo
3917 /* xgettext:c-format */
3918 (_("%H: reloc against `%s' references a different segment\n"),
3919 input_bfd, input_section, rel->r_offset, name);
3920 }
3921 if (!silence_segment_error && bfd_link_pic (info))
3922 return FALSE;
3923 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3924 }
3925
3926 switch (r_type)
3927 {
3928 case R_FRV_GOTOFFHI:
3929 case R_FRV_TLSMOFFHI:
3930 /* We need the addend to be applied before we shift the
3931 value right. */
3932 relocation += rel->r_addend;
3933 /* Fall through. */
3934 case R_FRV_GOTHI:
3935 case R_FRV_FUNCDESC_GOTHI:
3936 case R_FRV_FUNCDESC_GOTOFFHI:
3937 case R_FRV_GOTTLSOFFHI:
3938 case R_FRV_GOTTLSDESCHI:
3939 relocation >>= 16;
3940 /* Fall through. */
3941
3942 case R_FRV_GOTLO:
3943 case R_FRV_FUNCDESC_GOTLO:
3944 case R_FRV_GOTOFFLO:
3945 case R_FRV_FUNCDESC_GOTOFFLO:
3946 case R_FRV_GOTTLSOFFLO:
3947 case R_FRV_GOTTLSDESCLO:
3948 case R_FRV_TLSMOFFLO:
3949 relocation &= 0xffff;
3950 break;
3951
3952 default:
3953 break;
3954 }
3955
3956 switch (r_type)
3957 {
3958 case R_FRV_LABEL24:
3959 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3960 break;
3961 /* Fall through. */
3962
3963 /* When referencing a GOT entry, a function descriptor or a
3964 PLT, we don't want the addend to apply to the reference,
3965 but rather to the referenced symbol. The actual entry
3966 will have already been created taking the addend into
3967 account, so cancel it out here. */
3968 case R_FRV_GOT12:
3969 case R_FRV_GOTHI:
3970 case R_FRV_GOTLO:
3971 case R_FRV_FUNCDESC_GOT12:
3972 case R_FRV_FUNCDESC_GOTHI:
3973 case R_FRV_FUNCDESC_GOTLO:
3974 case R_FRV_FUNCDESC_GOTOFF12:
3975 case R_FRV_FUNCDESC_GOTOFFHI:
3976 case R_FRV_FUNCDESC_GOTOFFLO:
3977 case R_FRV_GETTLSOFF:
3978 case R_FRV_GOTTLSDESC12:
3979 case R_FRV_GOTTLSDESCHI:
3980 case R_FRV_GOTTLSDESCLO:
3981 case R_FRV_GOTTLSOFF12:
3982 case R_FRV_GOTTLSOFFHI:
3983 case R_FRV_GOTTLSOFFLO:
3984 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3985 here, since we do want to apply the addend to the others.
3986 Note that we've applied the addend to GOTOFFHI before we
3987 shifted it right. */
3988 case R_FRV_GOTOFFHI:
3989 case R_FRV_TLSMOFFHI:
3990 relocation -= rel->r_addend;
3991 break;
3992
3993 default:
3994 break;
3995 }
3996
3997 if (r_type == R_FRV_HI16)
3998 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3999
4000 else if (r_type == R_FRV_LO16)
4001 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
4002
4003 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4004 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4005 contents, relocation);
4006
4007 else if (r_type == R_FRV_GPREL12)
4008 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4009 contents, relocation);
4010
4011 else if (r_type == R_FRV_GPRELU12)
4012 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4013 contents, relocation);
4014
4015 else if (r_type == R_FRV_GPRELLO)
4016 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4017 contents, relocation);
4018
4019 else if (r_type == R_FRV_GPRELHI)
4020 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4021 contents, relocation);
4022
4023 else if (r_type == R_FRV_TLSOFF
4024 || r_type == R_FRV_TLSDESC_VALUE)
4025 r = bfd_reloc_notsupported;
4026
4027 else
4028 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4029 rel, relocation);
4030
4031 if (r != bfd_reloc_ok)
4032 {
4033 const char * msg = (const char *) NULL;
4034
4035 switch (r)
4036 {
4037 case bfd_reloc_overflow:
4038 (*info->callbacks->reloc_overflow)
4039 (info, (h ? &h->root : NULL), name, howto->name,
4040 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4041 break;
4042
4043 case bfd_reloc_undefined:
4044 (*info->callbacks->undefined_symbol)
4045 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4046 break;
4047
4048 case bfd_reloc_outofrange:
4049 msg = _("internal error: out of range error");
4050 break;
4051
4052 case bfd_reloc_notsupported:
4053 msg = _("internal error: unsupported relocation error");
4054 break;
4055
4056 case bfd_reloc_dangerous:
4057 msg = _("internal error: dangerous relocation");
4058 break;
4059
4060 default:
4061 msg = _("internal error: unknown error");
4062 break;
4063 }
4064
4065 if (msg)
4066 {
4067 info->callbacks->einfo
4068 /* xgettext:c-format */
4069 (_("%H: reloc against `%s': %s\n"),
4070 input_bfd, input_section, rel->r_offset, name, msg);
4071 return FALSE;
4072 }
4073 }
4074 }
4075
4076 return TRUE;
4077 }
4078 \f
4079 /* Return the section that should be marked against GC for a given
4080 relocation. */
4081
4082 static asection *
4083 elf32_frv_gc_mark_hook (asection *sec,
4084 struct bfd_link_info *info,
4085 Elf_Internal_Rela *rel,
4086 struct elf_link_hash_entry *h,
4087 Elf_Internal_Sym *sym)
4088 {
4089 if (h != NULL)
4090 switch (ELF32_R_TYPE (rel->r_info))
4091 {
4092 case R_FRV_GNU_VTINHERIT:
4093 case R_FRV_GNU_VTENTRY:
4094 return NULL;
4095 }
4096
4097 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4098 }
4099 \f
4100 /* Hook called by the linker routine which adds symbols from an object
4101 file. We use it to put .comm items in .scomm, and not .comm. */
4102
4103 static bfd_boolean
4104 elf32_frv_add_symbol_hook (bfd *abfd,
4105 struct bfd_link_info *info,
4106 Elf_Internal_Sym *sym,
4107 const char **namep ATTRIBUTE_UNUSED,
4108 flagword *flagsp ATTRIBUTE_UNUSED,
4109 asection **secp,
4110 bfd_vma *valp)
4111 {
4112 if (sym->st_shndx == SHN_COMMON
4113 && !bfd_link_relocatable (info)
4114 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4115 {
4116 /* Common symbols less than or equal to -G nn bytes are
4117 automatically put into .sbss. */
4118
4119 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4120
4121 if (scomm == NULL)
4122 {
4123 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4124 (SEC_ALLOC
4125 | SEC_IS_COMMON
4126 | SEC_LINKER_CREATED));
4127 if (scomm == NULL)
4128 return FALSE;
4129 }
4130
4131 *secp = scomm;
4132 *valp = sym->st_size;
4133 }
4134
4135 return TRUE;
4136 }
4137
4138 /* We need dynamic symbols for every section, since segments can
4139 relocate independently. */
4140 static bfd_boolean
4141 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4142 struct bfd_link_info *info
4143 ATTRIBUTE_UNUSED,
4144 asection *p ATTRIBUTE_UNUSED)
4145 {
4146 switch (elf_section_data (p)->this_hdr.sh_type)
4147 {
4148 case SHT_PROGBITS:
4149 case SHT_NOBITS:
4150 /* If sh_type is yet undecided, assume it could be
4151 SHT_PROGBITS/SHT_NOBITS. */
4152 case SHT_NULL:
4153 return FALSE;
4154
4155 /* There shouldn't be section relative relocations
4156 against any other section. */
4157 default:
4158 return TRUE;
4159 }
4160 }
4161
4162 /* Create a .got section, as well as its additional info field. This
4163 is almost entirely copied from
4164 elflink.c:_bfd_elf_create_got_section(). */
4165
4166 static bfd_boolean
4167 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4168 {
4169 flagword flags, pltflags;
4170 asection *s;
4171 struct elf_link_hash_entry *h;
4172 struct bfd_link_hash_entry *bh;
4173 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4174 int ptralign;
4175 int offset;
4176
4177 /* This function may be called more than once. */
4178 s = elf_hash_table (info)->sgot;
4179 if (s != NULL)
4180 return TRUE;
4181
4182 /* Machine specific: although pointers are 32-bits wide, we want the
4183 GOT to be aligned to a 64-bit boundary, such that function
4184 descriptors in it can be accessed with 64-bit loads and
4185 stores. */
4186 ptralign = 3;
4187
4188 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4189 | SEC_LINKER_CREATED);
4190 pltflags = flags;
4191
4192 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4193 elf_hash_table (info)->sgot = s;
4194 if (s == NULL
4195 || !bfd_set_section_alignment (abfd, s, ptralign))
4196 return FALSE;
4197
4198 if (bed->want_got_sym)
4199 {
4200 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4201 (or .got.plt) section. We don't do this in the linker script
4202 because we don't want to define the symbol if we are not creating
4203 a global offset table. */
4204 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4205 elf_hash_table (info)->hgot = h;
4206 if (h == NULL)
4207 return FALSE;
4208
4209 /* Machine-specific: we want the symbol for executables as
4210 well. */
4211 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4212 return FALSE;
4213 }
4214
4215 /* The first bit of the global offset table is the header. */
4216 s->size += bed->got_header_size;
4217
4218 /* This is the machine-specific part. Create and initialize section
4219 data for the got. */
4220 if (IS_FDPIC (abfd))
4221 {
4222 frvfdpic_relocs_info (info) = htab_try_create (1,
4223 frvfdpic_relocs_info_hash,
4224 frvfdpic_relocs_info_eq,
4225 (htab_del) NULL);
4226 if (! frvfdpic_relocs_info (info))
4227 return FALSE;
4228
4229 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4230 (flags | SEC_READONLY));
4231 elf_hash_table (info)->srelgot = s;
4232 if (s == NULL
4233 || ! bfd_set_section_alignment (abfd, s, 2))
4234 return FALSE;
4235
4236 /* Machine-specific. */
4237 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4238 (flags | SEC_READONLY));
4239 if (s == NULL
4240 || ! bfd_set_section_alignment (abfd, s, 2))
4241 return FALSE;
4242
4243 frvfdpic_gotfixup_section (info) = s;
4244 offset = -2048;
4245 flags = BSF_GLOBAL;
4246 }
4247 else
4248 {
4249 offset = 2048;
4250 flags = BSF_GLOBAL | BSF_WEAK;
4251 }
4252
4253 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4254 turns out that we're linking with a different linker script, the
4255 linker script will override it. */
4256 bh = NULL;
4257 if (!(_bfd_generic_link_add_one_symbol
4258 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4259 bed->collect, &bh)))
4260 return FALSE;
4261 h = (struct elf_link_hash_entry *) bh;
4262 h->def_regular = 1;
4263 h->type = STT_OBJECT;
4264 /* h->other = STV_HIDDEN; */ /* Should we? */
4265
4266 /* Machine-specific: we want the symbol for executables as well. */
4267 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4268 return FALSE;
4269
4270 if (!IS_FDPIC (abfd))
4271 return TRUE;
4272
4273 /* FDPIC supports Thread Local Storage, and this may require a
4274 procedure linkage table for TLS PLT entries. */
4275
4276 /* This is mostly copied from
4277 elflink.c:_bfd_elf_create_dynamic_sections(). */
4278
4279 flags = pltflags;
4280 pltflags |= SEC_CODE;
4281 if (bed->plt_not_loaded)
4282 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4283 if (bed->plt_readonly)
4284 pltflags |= SEC_READONLY;
4285
4286 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4287 if (s == NULL
4288 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4289 return FALSE;
4290 /* FRV-specific: remember it. */
4291 frvfdpic_plt_section (info) = s;
4292
4293 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4294 .plt section. */
4295 if (bed->want_plt_sym)
4296 {
4297 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4298 "_PROCEDURE_LINKAGE_TABLE_");
4299 elf_hash_table (info)->hplt = h;
4300 if (h == NULL)
4301 return FALSE;
4302 }
4303
4304 /* FRV-specific: we want rel relocations for the plt. */
4305 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4306 flags | SEC_READONLY);
4307 if (s == NULL
4308 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4309 return FALSE;
4310 /* FRV-specific: remember it. */
4311 frvfdpic_pltrel_section (info) = s;
4312
4313 return TRUE;
4314 }
4315
4316 /* Make sure the got and plt sections exist, and that our pointers in
4317 the link hash table point to them. */
4318
4319 static bfd_boolean
4320 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4321 {
4322 /* This is mostly copied from
4323 elflink.c:_bfd_elf_create_dynamic_sections(). */
4324 flagword flags;
4325 asection *s;
4326 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4327
4328 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4329 | SEC_LINKER_CREATED);
4330
4331 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4332 .rel[a].bss sections. */
4333
4334 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4335 way. */
4336 if (! _frv_create_got_section (abfd, info))
4337 return FALSE;
4338
4339 /* FRV-specific: make sure we created everything we wanted. */
4340 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4341 && frvfdpic_gotfixup_section (info)
4342 && frvfdpic_plt_section (info)
4343 && frvfdpic_pltrel_section (info));
4344
4345 if (bed->want_dynbss)
4346 {
4347 /* The .dynbss section is a place to put symbols which are defined
4348 by dynamic objects, are referenced by regular objects, and are
4349 not functions. We must allocate space for them in the process
4350 image and use a R_*_COPY reloc to tell the dynamic linker to
4351 initialize them at run time. The linker script puts the .dynbss
4352 section into the .bss section of the final image. */
4353 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4354 SEC_ALLOC | SEC_LINKER_CREATED);
4355 if (s == NULL)
4356 return FALSE;
4357
4358 /* The .rel[a].bss section holds copy relocs. This section is not
4359 normally needed. We need to create it here, though, so that the
4360 linker will map it to an output section. We can't just create it
4361 only if we need it, because we will not know whether we need it
4362 until we have seen all the input files, and the first time the
4363 main linker code calls BFD after examining all the input files
4364 (size_dynamic_sections) the input sections have already been
4365 mapped to the output sections. If the section turns out not to
4366 be needed, we can discard it later. We will never need this
4367 section when generating a shared object, since they do not use
4368 copy relocs. */
4369 if (! bfd_link_pic (info))
4370 {
4371 s = bfd_make_section_anyway_with_flags (abfd,
4372 (bed->default_use_rela_p
4373 ? ".rela.bss" : ".rel.bss"),
4374 flags | SEC_READONLY);
4375 if (s == NULL
4376 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4377 return FALSE;
4378 }
4379 }
4380
4381 return TRUE;
4382 }
4383
4384 /* Compute the total GOT and PLT size required by each symbol in each
4385 range. Symbols may require up to 4 words in the GOT: an entry
4386 pointing to the symbol, an entry pointing to its function
4387 descriptor, and a private function descriptors taking two
4388 words. */
4389
4390 static void
4391 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4392 struct _frvfdpic_dynamic_got_info *dinfo)
4393 {
4394 /* Allocate space for a GOT entry pointing to the symbol. */
4395 if (entry->got12)
4396 dinfo->got12 += 4;
4397 else if (entry->gotlos)
4398 dinfo->gotlos += 4;
4399 else if (entry->gothilo)
4400 dinfo->gothilo += 4;
4401 else
4402 entry->relocs32--;
4403 entry->relocs32++;
4404
4405 /* Allocate space for a GOT entry pointing to the function
4406 descriptor. */
4407 if (entry->fdgot12)
4408 dinfo->got12 += 4;
4409 else if (entry->fdgotlos)
4410 dinfo->gotlos += 4;
4411 else if (entry->fdgothilo)
4412 dinfo->gothilo += 4;
4413 else
4414 entry->relocsfd--;
4415 entry->relocsfd++;
4416
4417 /* Decide whether we need a PLT entry, a function descriptor in the
4418 GOT, and a lazy PLT entry for this symbol. */
4419 entry->plt = entry->call
4420 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4421 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4422 entry->privfd = entry->plt
4423 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4424 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4425 && (entry->symndx != -1
4426 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4427 entry->lazyplt = entry->privfd
4428 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4429 && ! (dinfo->info->flags & DF_BIND_NOW)
4430 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4431
4432 /* Allocate space for a function descriptor. */
4433 if (entry->fdgoff12)
4434 dinfo->fd12 += 8;
4435 else if (entry->fdgofflos)
4436 dinfo->fdlos += 8;
4437 else if (entry->privfd && entry->plt)
4438 dinfo->fdplt += 8;
4439 else if (entry->privfd)
4440 dinfo->fdhilo += 8;
4441 else
4442 entry->relocsfdv--;
4443 entry->relocsfdv++;
4444
4445 if (entry->lazyplt)
4446 dinfo->lzplt += 8;
4447 }
4448
4449 /* Compute the total GOT size required by each TLS symbol in each
4450 range. Symbols may require up to 5 words in the GOT: an entry
4451 holding the TLS offset for the symbol, and an entry with a full TLS
4452 descriptor taking 4 words. */
4453
4454 static void
4455 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4456 struct _frvfdpic_dynamic_got_info *dinfo,
4457 bfd_boolean subtract)
4458 {
4459 const int l = subtract ? -1 : 1;
4460
4461 /* Allocate space for a GOT entry with the TLS offset of the
4462 symbol. */
4463 if (entry->tlsoff12)
4464 dinfo->got12 += 4 * l;
4465 else if (entry->tlsofflos)
4466 dinfo->gotlos += 4 * l;
4467 else if (entry->tlsoffhilo)
4468 dinfo->gothilo += 4 * l;
4469 else
4470 entry->relocstlsoff -= l;
4471 entry->relocstlsoff += l;
4472
4473 /* If there's any TLSOFF relocation, mark the output file as not
4474 suitable for dlopening. This mark will remain even if we relax
4475 all such relocations, but this is not a problem, since we'll only
4476 do so for executables, and we definitely don't want anyone
4477 dlopening executables. */
4478 if (entry->relocstlsoff)
4479 dinfo->info->flags |= DF_STATIC_TLS;
4480
4481 /* Allocate space for a TLS descriptor. */
4482 if (entry->tlsdesc12)
4483 dinfo->tlsd12 += 8 * l;
4484 else if (entry->tlsdesclos)
4485 dinfo->tlsdlos += 8 * l;
4486 else if (entry->tlsplt)
4487 dinfo->tlsdplt += 8 * l;
4488 else if (entry->tlsdeschilo)
4489 dinfo->tlsdhilo += 8 * l;
4490 else
4491 entry->relocstlsd -= l;
4492 entry->relocstlsd += l;
4493 }
4494
4495 /* Compute the number of dynamic relocations and fixups that a symbol
4496 requires, and add (or subtract) from the grand and per-symbol
4497 totals. */
4498
4499 static void
4500 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4501 struct _frvfdpic_dynamic_got_info *dinfo,
4502 bfd_boolean subtract)
4503 {
4504 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4505
4506 if (!bfd_link_pde (dinfo->info))
4507 {
4508 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4509 + entry->relocstlsd;
4510
4511 /* In the executable, TLS relocations to symbols that bind
4512 locally (including those that resolve to global TLS offsets)
4513 are resolved immediately, without any need for fixups or
4514 dynamic relocations. In shared libraries, however, we must
4515 emit dynamic relocations even for local symbols, because we
4516 don't know the module id the library is going to get at
4517 run-time, nor its TLS base offset. */
4518 if (!bfd_link_executable (dinfo->info)
4519 || (entry->symndx == -1
4520 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4521 relocs += entry->relocstlsoff;
4522 }
4523 else
4524 {
4525 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4526 {
4527 if (entry->symndx != -1
4528 || entry->d.h->root.type != bfd_link_hash_undefweak)
4529 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4530 fixups += entry->relocstlsd;
4531 tlsrets += entry->relocstlsd;
4532 }
4533 else
4534 {
4535 relocs += entry->relocs32 + entry->relocsfdv
4536 + entry->relocstlsoff + entry->relocstlsd;
4537 }
4538
4539 if (entry->symndx != -1
4540 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4541 {
4542 if (entry->symndx != -1
4543 || entry->d.h->root.type != bfd_link_hash_undefweak)
4544 fixups += entry->relocsfd;
4545 }
4546 else
4547 relocs += entry->relocsfd;
4548 }
4549
4550 if (subtract)
4551 {
4552 relocs = - relocs;
4553 fixups = - fixups;
4554 tlsrets = - tlsrets;
4555 }
4556
4557 entry->dynrelocs += relocs;
4558 entry->fixups += fixups;
4559 dinfo->relocs += relocs;
4560 dinfo->fixups += fixups;
4561 dinfo->tls_ret_refs += tlsrets;
4562 }
4563
4564 /* Look for opportunities to relax TLS relocations. We can assume
4565 we're linking the main executable or a static-tls library, since
4566 otherwise we wouldn't have got here. When relaxing, we have to
4567 first undo any previous accounting of TLS uses of fixups, dynamic
4568 relocations, GOT and PLT entries. */
4569
4570 static void
4571 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4572 struct _frvfdpic_dynamic_got_info *dinfo,
4573 bfd_boolean relaxing)
4574 {
4575 bfd_boolean changed = ! relaxing;
4576
4577 BFD_ASSERT (bfd_link_executable (dinfo->info)
4578 || (dinfo->info->flags & DF_STATIC_TLS));
4579
4580 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4581 {
4582 if (! changed)
4583 {
4584 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4585 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4586 changed = TRUE;
4587 }
4588
4589 /* When linking an executable, we can always decay GOTTLSDESC to
4590 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4591 When linking a static-tls shared library, using TLSMOFF is
4592 not an option, but we can still use GOTTLSOFF. When decaying
4593 to GOTTLSOFF, we must keep the GOT entry in range. We know
4594 it has to fit because we'll be trading the 4 words of hte TLS
4595 descriptor for a single word in the same range. */
4596 if (! bfd_link_executable (dinfo->info)
4597 || (entry->symndx == -1
4598 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4599 {
4600 entry->tlsoff12 |= entry->tlsdesc12;
4601 entry->tlsofflos |= entry->tlsdesclos;
4602 entry->tlsoffhilo |= entry->tlsdeschilo;
4603 }
4604
4605 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4606 }
4607
4608 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4609 main executable. We have to check whether the symbol's TLSOFF is
4610 in range for a setlos. For symbols with a hash entry, we can
4611 determine exactly what to do; for others locals, we don't have
4612 addresses handy, so we use the size of the TLS section as an
4613 approximation. If we get it wrong, we'll retain a GOT entry
4614 holding the TLS offset (without dynamic relocations or fixups),
4615 but we'll still optimize away the loads from it. Since TLS sizes
4616 are generally very small, it's probably not worth attempting to
4617 do better than this. */
4618 if ((entry->tlsplt
4619 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4620 && bfd_link_executable (dinfo->info) && relaxing
4621 && ((entry->symndx == -1
4622 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4623 /* The above may hold for an undefweak TLS symbol, so make
4624 sure we don't have this case before accessing def.value
4625 and def.section. */
4626 && (entry->d.h->root.type == bfd_link_hash_undefweak
4627 || (bfd_vma)(entry->d.h->root.u.def.value
4628 + (entry->d.h->root.u.def.section
4629 ->output_section->vma)
4630 + entry->d.h->root.u.def.section->output_offset
4631 + entry->addend
4632 - tls_biased_base (dinfo->info)
4633 + 32768) < (bfd_vma)65536))
4634 || (entry->symndx != -1
4635 && (elf_hash_table (dinfo->info)->tls_sec->size
4636 + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4637 {
4638 if (! changed)
4639 {
4640 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4641 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4642 changed = TRUE;
4643 }
4644
4645 entry->tlsplt =
4646 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4647 }
4648
4649 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4650 have a #gottlsoff12 relocation for this entry, or if we can fit
4651 one more in the 12-bit (and 16-bit) ranges. */
4652 if (entry->tlsplt
4653 && (entry->tlsoff12
4654 || (relaxing
4655 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4656 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4657 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4658 <= 65536 - 12 - 4))))
4659 {
4660 if (! changed)
4661 {
4662 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4663 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4664 changed = TRUE;
4665 }
4666
4667 entry->tlsoff12 = 1;
4668 entry->tlsplt = 0;
4669 }
4670
4671 if (changed)
4672 {
4673 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4674 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4675 }
4676
4677 return;
4678 }
4679
4680 /* Compute the total GOT and PLT size required by each symbol in each range. *
4681 Symbols may require up to 4 words in the GOT: an entry pointing to
4682 the symbol, an entry pointing to its function descriptor, and a
4683 private function descriptors taking two words. */
4684
4685 static int
4686 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4687 {
4688 struct frvfdpic_relocs_info *entry = *entryp;
4689 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4690
4691 _frvfdpic_count_nontls_entries (entry, dinfo);
4692
4693 if (bfd_link_executable (dinfo->info)
4694 || (dinfo->info->flags & DF_STATIC_TLS))
4695 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4696 else
4697 {
4698 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4699 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4700 }
4701
4702 return 1;
4703 }
4704
4705 /* Determine the positive and negative ranges to be used by each
4706 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4707 double-word boundary, are the minimum (negative) and maximum
4708 (positive) GOT offsets already used by previous ranges, except for
4709 an ODD entry that may have been left behind. GOT and FD indicate
4710 the size of GOT entries and function descriptors that must be
4711 placed within the range from -WRAP to WRAP. If there's room left,
4712 up to FDPLT bytes should be reserved for additional function
4713 descriptors. */
4714
4715 inline static bfd_signed_vma
4716 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4717 bfd_signed_vma fdcur,
4718 bfd_signed_vma odd,
4719 bfd_signed_vma cur,
4720 bfd_vma got,
4721 bfd_vma fd,
4722 bfd_vma fdplt,
4723 bfd_vma tlsd,
4724 bfd_vma tlsdplt,
4725 bfd_vma wrap)
4726 {
4727 bfd_signed_vma wrapmin = -wrap;
4728 const bfd_vma tdescsz = 8;
4729
4730 /* Start at the given initial points. */
4731 gad->fdcur = fdcur;
4732 gad->cur = cur;
4733
4734 /* If we had an incoming odd word and we have any got entries that
4735 are going to use it, consume it, otherwise leave gad->odd at
4736 zero. We might force gad->odd to zero and return the incoming
4737 odd such that it is used by the next range, but then GOT entries
4738 might appear to be out of order and we wouldn't be able to
4739 shorten the GOT by one word if it turns out to end with an
4740 unpaired GOT entry. */
4741 if (odd && got)
4742 {
4743 gad->odd = odd;
4744 got -= 4;
4745 odd = 0;
4746 }
4747 else
4748 gad->odd = 0;
4749
4750 /* If we're left with an unpaired GOT entry, compute its location
4751 such that we can return it. Otherwise, if got doesn't require an
4752 odd number of words here, either odd was already zero in the
4753 block above, or it was set to zero because got was non-zero, or
4754 got was already zero. In the latter case, we want the value of
4755 odd to carry over to the return statement, so we don't want to
4756 reset odd unless the condition below is true. */
4757 if (got & 4)
4758 {
4759 odd = cur + got;
4760 got += 4;
4761 }
4762
4763 /* Compute the tentative boundaries of this range. */
4764 gad->max = cur + got;
4765 gad->min = fdcur - fd;
4766 gad->fdplt = 0;
4767
4768 /* If function descriptors took too much space, wrap some of them
4769 around. */
4770 if (gad->min < wrapmin)
4771 {
4772 gad->max += wrapmin - gad->min;
4773 gad->tmin = gad->min = wrapmin;
4774 }
4775
4776 /* If GOT entries took too much space, wrap some of them around.
4777 This may well cause gad->min to become lower than wrapmin. This
4778 will cause a relocation overflow later on, so we don't have to
4779 report it here . */
4780 if ((bfd_vma) gad->max > wrap)
4781 {
4782 gad->min -= gad->max - wrap;
4783 gad->max = wrap;
4784 }
4785
4786 /* Add TLS descriptors. */
4787 gad->tmax = gad->max + tlsd;
4788 gad->tmin = gad->min;
4789 gad->tlsdplt = 0;
4790
4791 /* If TLS descriptors took too much space, wrap an integral number
4792 of them around. */
4793 if ((bfd_vma) gad->tmax > wrap)
4794 {
4795 bfd_vma wrapsize = gad->tmax - wrap;
4796
4797 wrapsize += tdescsz / 2;
4798 wrapsize &= ~ tdescsz / 2;
4799
4800 gad->tmin -= wrapsize;
4801 gad->tmax -= wrapsize;
4802 }
4803
4804 /* If there is space left and we have function descriptors
4805 referenced in PLT entries that could take advantage of shorter
4806 offsets, place them now. */
4807 if (fdplt && gad->tmin > wrapmin)
4808 {
4809 bfd_vma fds;
4810
4811 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4812 fds = gad->tmin - wrapmin;
4813 else
4814 fds = fdplt;
4815
4816 fdplt -= fds;
4817 gad->min -= fds;
4818 gad->tmin -= fds;
4819 gad->fdplt += fds;
4820 }
4821
4822 /* If there is more space left, try to place some more function
4823 descriptors for PLT entries. */
4824 if (fdplt && (bfd_vma) gad->tmax < wrap)
4825 {
4826 bfd_vma fds;
4827
4828 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4829 fds = wrap - gad->tmax;
4830 else
4831 fds = fdplt;
4832
4833 fdplt -= fds;
4834 gad->max += fds;
4835 gad->tmax += fds;
4836 gad->fdplt += fds;
4837 }
4838
4839 /* If there is space left and we have TLS descriptors referenced in
4840 PLT entries that could take advantage of shorter offsets, place
4841 them now. */
4842 if (tlsdplt && gad->tmin > wrapmin)
4843 {
4844 bfd_vma tlsds;
4845
4846 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4847 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4848 else
4849 tlsds = tlsdplt;
4850
4851 tlsdplt -= tlsds;
4852 gad->tmin -= tlsds;
4853 gad->tlsdplt += tlsds;
4854 }
4855
4856 /* If there is more space left, try to place some more TLS
4857 descriptors for PLT entries. Although we could try to fit an
4858 additional TLS descriptor with half of it just before before the
4859 wrap point and another right past the wrap point, this might
4860 cause us to run out of space for the next region, so don't do
4861 it. */
4862 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4863 {
4864 bfd_vma tlsds;
4865
4866 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4867 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4868 else
4869 tlsds = tlsdplt;
4870
4871 tlsdplt -= tlsds;
4872 gad->tmax += tlsds;
4873 gad->tlsdplt += tlsds;
4874 }
4875
4876 /* If odd was initially computed as an offset past the wrap point,
4877 wrap it around. */
4878 if (odd > gad->max)
4879 odd = gad->min + odd - gad->max;
4880
4881 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4882 before returning, so do it here too. This guarantees that,
4883 should cur and fdcur meet at the wrap point, they'll both be
4884 equal to min. */
4885 if (gad->cur == gad->max)
4886 gad->cur = gad->min;
4887
4888 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4889 gad->tcur = gad->max;
4890 if (gad->tcur == gad->tmax)
4891 gad->tcur = gad->tmin;
4892
4893 return odd;
4894 }
4895
4896 /* Compute the location of the next GOT entry, given the allocation
4897 data for a range. */
4898
4899 inline static bfd_signed_vma
4900 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4901 {
4902 bfd_signed_vma ret;
4903
4904 if (gad->odd)
4905 {
4906 /* If there was an odd word left behind, use it. */
4907 ret = gad->odd;
4908 gad->odd = 0;
4909 }
4910 else
4911 {
4912 /* Otherwise, use the word pointed to by cur, reserve the next
4913 as an odd word, and skip to the next pair of words, possibly
4914 wrapping around. */
4915 ret = gad->cur;
4916 gad->odd = gad->cur + 4;
4917 gad->cur += 8;
4918 if (gad->cur == gad->max)
4919 gad->cur = gad->min;
4920 }
4921
4922 return ret;
4923 }
4924
4925 /* Compute the location of the next function descriptor entry in the
4926 GOT, given the allocation data for a range. */
4927
4928 inline static bfd_signed_vma
4929 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4930 {
4931 /* If we're at the bottom, wrap around, and only then allocate the
4932 next pair of words. */
4933 if (gad->fdcur == gad->min)
4934 gad->fdcur = gad->max;
4935 return gad->fdcur -= 8;
4936 }
4937
4938 /* Compute the location of the next TLS descriptor entry in the GOT,
4939 given the allocation data for a range. */
4940 inline static bfd_signed_vma
4941 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4942 {
4943 bfd_signed_vma ret;
4944
4945 ret = gad->tcur;
4946
4947 gad->tcur += 8;
4948
4949 /* If we're at the top of the region, wrap around to the bottom. */
4950 if (gad->tcur == gad->tmax)
4951 gad->tcur = gad->tmin;
4952
4953 return ret;
4954 }
4955
4956 /* Assign GOT offsets for every GOT entry and function descriptor.
4957 Doing everything in a single pass is tricky. */
4958
4959 static int
4960 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4961 {
4962 struct frvfdpic_relocs_info *entry = *entryp;
4963 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4964
4965 if (entry->got12)
4966 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4967 else if (entry->gotlos)
4968 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4969 else if (entry->gothilo)
4970 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4971
4972 if (entry->fdgot12)
4973 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4974 else if (entry->fdgotlos)
4975 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4976 else if (entry->fdgothilo)
4977 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4978
4979 if (entry->fdgoff12)
4980 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4981 else if (entry->plt && dinfo->got12.fdplt)
4982 {
4983 dinfo->got12.fdplt -= 8;
4984 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4985 }
4986 else if (entry->fdgofflos)
4987 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4988 else if (entry->plt && dinfo->gotlos.fdplt)
4989 {
4990 dinfo->gotlos.fdplt -= 8;
4991 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4992 }
4993 else if (entry->plt)
4994 {
4995 dinfo->gothilo.fdplt -= 8;
4996 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
4997 }
4998 else if (entry->privfd)
4999 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5000
5001 if (entry->tlsoff12)
5002 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5003 else if (entry->tlsofflos)
5004 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5005 else if (entry->tlsoffhilo)
5006 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5007
5008 if (entry->tlsdesc12)
5009 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5010 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5011 {
5012 dinfo->got12.tlsdplt -= 8;
5013 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5014 }
5015 else if (entry->tlsdesclos)
5016 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5017 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5018 {
5019 dinfo->gotlos.tlsdplt -= 8;
5020 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5021 }
5022 else if (entry->tlsplt)
5023 {
5024 dinfo->gothilo.tlsdplt -= 8;
5025 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5026 }
5027 else if (entry->tlsdeschilo)
5028 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5029
5030 return 1;
5031 }
5032
5033 /* Assign GOT offsets to private function descriptors used by PLT
5034 entries (or referenced by 32-bit offsets), as well as PLT entries
5035 and lazy PLT entries. */
5036
5037 static int
5038 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5039 {
5040 struct frvfdpic_relocs_info *entry = *entryp;
5041 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5042
5043 if (entry->privfd)
5044 BFD_ASSERT (entry->fd_entry);
5045
5046 if (entry->plt)
5047 {
5048 int size;
5049
5050 /* We use the section's raw size to mark the location of the
5051 next PLT entry. */
5052 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5053
5054 /* Figure out the length of this PLT entry based on the
5055 addressing mode we need to reach the function descriptor. */
5056 BFD_ASSERT (entry->fd_entry);
5057 if (entry->fd_entry >= -(1 << (12 - 1))
5058 && entry->fd_entry < (1 << (12 - 1)))
5059 size = 8;
5060 else if (entry->fd_entry >= -(1 << (16 - 1))
5061 && entry->fd_entry < (1 << (16 - 1)))
5062 size = 12;
5063 else
5064 size = 16;
5065
5066 frvfdpic_plt_section (dinfo->g.info)->size += size;
5067 }
5068
5069 if (entry->lazyplt)
5070 {
5071 entry->lzplt_entry = dinfo->g.lzplt;
5072 dinfo->g.lzplt += 8;
5073 /* If this entry is the one that gets the resolver stub, account
5074 for the additional instruction. */
5075 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5076 == FRVFDPIC_LZPLT_RESOLV_LOC)
5077 dinfo->g.lzplt += 4;
5078 }
5079
5080 if (entry->tlsplt)
5081 {
5082 int size;
5083
5084 entry->tlsplt_entry
5085 = frvfdpic_plt_section (dinfo->g.info)->size;
5086
5087 if (bfd_link_executable (dinfo->g.info)
5088 && (entry->symndx != -1
5089 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5090 {
5091 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5092 /* FIXME: here we use the size of the TLS section
5093 as an upper bound for the value of the TLS
5094 symbol, because we may not know the exact value
5095 yet. If we get it wrong, we'll just waste a
5096 word in the PLT, and we should never get even
5097 close to 32 KiB of TLS anyway. */
5098 && elf_hash_table (dinfo->g.info)->tls_sec
5099 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5100 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5101 size = 8;
5102 else
5103 size = 12;
5104 }
5105 else if (entry->tlsoff_entry)
5106 {
5107 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5108 && entry->tlsoff_entry < (1 << (12 - 1)))
5109 size = 8;
5110 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5111 && entry->tlsoff_entry < (1 << (16 - 1)))
5112 size = 12;
5113 else
5114 size = 16;
5115 }
5116 else
5117 {
5118 BFD_ASSERT (entry->tlsdesc_entry);
5119
5120 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5121 && entry->tlsdesc_entry < (1 << (12 - 1)))
5122 size = 8;
5123 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5124 && entry->tlsdesc_entry < (1 << (16 - 1)))
5125 size = 12;
5126 else
5127 size = 16;
5128 }
5129
5130 frvfdpic_plt_section (dinfo->g.info)->size += size;
5131 }
5132
5133 return 1;
5134 }
5135
5136 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5137 _frvfdpic_assign_plt_entries. */
5138
5139 static int
5140 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5141 {
5142 struct frvfdpic_relocs_info *entry = *entryp;
5143
5144 entry->got_entry = 0;
5145 entry->fdgot_entry = 0;
5146 entry->fd_entry = 0;
5147 entry->plt_entry = (bfd_vma)-1;
5148 entry->lzplt_entry = (bfd_vma)-1;
5149 entry->tlsoff_entry = 0;
5150 entry->tlsdesc_entry = 0;
5151 entry->tlsplt_entry = (bfd_vma)-1;
5152
5153 return 1;
5154 }
5155
5156 /* Follow indirect and warning hash entries so that each got entry
5157 points to the final symbol definition. P must point to a pointer
5158 to the hash table we're traversing. Since this traversal may
5159 modify the hash table, we set this pointer to NULL to indicate
5160 we've made a potentially-destructive change to the hash table, so
5161 the traversal must be restarted. */
5162 static int
5163 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5164 {
5165 struct frvfdpic_relocs_info *entry = *entryp;
5166 htab_t *htab = p;
5167
5168 if (entry->symndx == -1)
5169 {
5170 struct elf_link_hash_entry *h = entry->d.h;
5171 struct frvfdpic_relocs_info *oentry;
5172
5173 while (h->root.type == bfd_link_hash_indirect
5174 || h->root.type == bfd_link_hash_warning)
5175 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5176
5177 if (entry->d.h == h)
5178 return 1;
5179
5180 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5181 NO_INSERT);
5182
5183 if (oentry)
5184 {
5185 /* Merge the two entries. */
5186 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5187 htab_clear_slot (*htab, entryp);
5188 return 1;
5189 }
5190
5191 entry->d.h = h;
5192
5193 /* If we can't find this entry with the new bfd hash, re-insert
5194 it, and get the traversal restarted. */
5195 if (! htab_find (*htab, entry))
5196 {
5197 htab_clear_slot (*htab, entryp);
5198 entryp = htab_find_slot (*htab, entry, INSERT);
5199 if (! *entryp)
5200 *entryp = entry;
5201 /* Abort the traversal, since the whole table may have
5202 moved, and leave it up to the parent to restart the
5203 process. */
5204 *(htab_t *)p = NULL;
5205 return 0;
5206 }
5207 }
5208
5209 return 1;
5210 }
5211
5212 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5213 section and the rofixup section. Assign locations for GOT and PLT
5214 entries. */
5215
5216 static bfd_boolean
5217 _frvfdpic_size_got_plt (bfd *output_bfd,
5218 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5219 {
5220 bfd_signed_vma odd;
5221 bfd_vma limit, tlslimit;
5222 struct bfd_link_info *info = gpinfop->g.info;
5223 bfd *dynobj = elf_hash_table (info)->dynobj;
5224
5225 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5226 sizeof (gpinfop->g));
5227
5228 odd = 12;
5229 /* Compute the total size taken by entries in the 12-bit and 16-bit
5230 ranges, to tell how many PLT function descriptors we can bring
5231 into the 12-bit range without causing the 16-bit range to
5232 overflow. */
5233 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5234 + gpinfop->g.fd12 + gpinfop->g.fdlos
5235 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5236 if (limit < (bfd_vma)1 << 16)
5237 limit = ((bfd_vma)1 << 16) - limit;
5238 else
5239 limit = 0;
5240 if (gpinfop->g.fdplt < limit)
5241 {
5242 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5243 limit = gpinfop->g.fdplt;
5244 }
5245 else
5246 tlslimit = 0;
5247 if (gpinfop->g.tlsdplt < tlslimit)
5248 tlslimit = gpinfop->g.tlsdplt;
5249
5250 /* Determine the ranges of GOT offsets that we can use for each
5251 range of addressing modes. */
5252 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5253 0,
5254 odd,
5255 16,
5256 gpinfop->g.got12,
5257 gpinfop->g.fd12,
5258 limit,
5259 gpinfop->g.tlsd12,
5260 tlslimit,
5261 (bfd_vma)1 << (12-1));
5262 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5263 gpinfop->got12.tmin,
5264 odd,
5265 gpinfop->got12.tmax,
5266 gpinfop->g.gotlos,
5267 gpinfop->g.fdlos,
5268 gpinfop->g.fdplt
5269 - gpinfop->got12.fdplt,
5270 gpinfop->g.tlsdlos,
5271 gpinfop->g.tlsdplt
5272 - gpinfop->got12.tlsdplt,
5273 (bfd_vma)1 << (16-1));
5274 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5275 gpinfop->gotlos.tmin,
5276 odd,
5277 gpinfop->gotlos.tmax,
5278 gpinfop->g.gothilo,
5279 gpinfop->g.fdhilo,
5280 gpinfop->g.fdplt
5281 - gpinfop->got12.fdplt
5282 - gpinfop->gotlos.fdplt,
5283 gpinfop->g.tlsdhilo,
5284 gpinfop->g.tlsdplt
5285 - gpinfop->got12.tlsdplt
5286 - gpinfop->gotlos.tlsdplt,
5287 (bfd_vma)1 << (32-1));
5288
5289 /* Now assign (most) GOT offsets. */
5290 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5291 gpinfop);
5292
5293 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5294 - gpinfop->gothilo.tmin
5295 /* If an odd word is the last word of the GOT, we don't need this
5296 word to be part of the GOT. */
5297 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5298 if (frvfdpic_got_section (info)->size == 0)
5299 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5300 else if (frvfdpic_got_section (info)->size == 12
5301 && ! elf_hash_table (info)->dynamic_sections_created)
5302 {
5303 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5304 frvfdpic_got_section (info)->size = 0;
5305 }
5306 /* This will be non-NULL during relaxation. The assumption is that
5307 the size of one of these sections will never grow, only shrink,
5308 so we can use the larger buffer we allocated before. */
5309 else if (frvfdpic_got_section (info)->contents == NULL)
5310 {
5311 frvfdpic_got_section (info)->contents =
5312 (bfd_byte *) bfd_zalloc (dynobj,
5313 frvfdpic_got_section (info)->size);
5314 if (frvfdpic_got_section (info)->contents == NULL)
5315 return FALSE;
5316 }
5317
5318 if (frvfdpic_gotrel_section (info))
5319 /* Subtract the number of lzplt entries, since those will generate
5320 relocations in the pltrel section. */
5321 frvfdpic_gotrel_section (info)->size =
5322 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5323 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5324 else
5325 BFD_ASSERT (gpinfop->g.relocs == 0);
5326 if (frvfdpic_gotrel_section (info)->size == 0)
5327 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5328 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5329 {
5330 frvfdpic_gotrel_section (info)->contents =
5331 (bfd_byte *) bfd_zalloc (dynobj,
5332 frvfdpic_gotrel_section (info)->size);
5333 if (frvfdpic_gotrel_section (info)->contents == NULL)
5334 return FALSE;
5335 }
5336
5337 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5338 if (frvfdpic_gotfixup_section (info)->size == 0)
5339 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5340 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5341 {
5342 frvfdpic_gotfixup_section (info)->contents =
5343 (bfd_byte *) bfd_zalloc (dynobj,
5344 frvfdpic_gotfixup_section (info)->size);
5345 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5346 return FALSE;
5347 }
5348
5349 if (frvfdpic_pltrel_section (info))
5350 {
5351 frvfdpic_pltrel_section (info)->size =
5352 gpinfop->g.lzplt / 8
5353 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5354 if (frvfdpic_pltrel_section (info)->size == 0)
5355 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5356 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5357 {
5358 frvfdpic_pltrel_section (info)->contents =
5359 (bfd_byte *) bfd_zalloc (dynobj,
5360 frvfdpic_pltrel_section (info)->size);
5361 if (frvfdpic_pltrel_section (info)->contents == NULL)
5362 return FALSE;
5363 }
5364 }
5365
5366 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5367 such that there's room for the additional instruction needed to
5368 call the resolver. Since _frvfdpic_assign_got_entries didn't
5369 account for them, our block size is 4 bytes smaller than the real
5370 block size. */
5371 if (frvfdpic_plt_section (info))
5372 {
5373 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5374 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5375 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5376 }
5377
5378 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5379 actually assign lazy PLT entries addresses. */
5380 gpinfop->g.lzplt = 0;
5381
5382 /* Save information that we're going to need to generate GOT and PLT
5383 entries. */
5384 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5385
5386 if (get_elf_backend_data (output_bfd)->want_got_sym)
5387 elf_hash_table (info)->hgot->root.u.def.value
5388 = frvfdpic_got_initial_offset (info);
5389
5390 if (frvfdpic_plt_section (info))
5391 frvfdpic_plt_initial_offset (info) =
5392 frvfdpic_plt_section (info)->size;
5393
5394 /* Allocate a ret statement at plt_initial_offset, to be used by
5395 locally-resolved TLS descriptors. */
5396 if (gpinfop->g.tls_ret_refs)
5397 frvfdpic_plt_section (info)->size += 4;
5398
5399 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5400 gpinfop);
5401
5402 /* Allocate the PLT section contents only after
5403 _frvfdpic_assign_plt_entries has a chance to add the size of the
5404 non-lazy PLT entries. */
5405 if (frvfdpic_plt_section (info))
5406 {
5407 if (frvfdpic_plt_section (info)->size == 0)
5408 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5409 else if (frvfdpic_plt_section (info)->contents == NULL)
5410 {
5411 frvfdpic_plt_section (info)->contents =
5412 (bfd_byte *) bfd_zalloc (dynobj,
5413 frvfdpic_plt_section (info)->size);
5414 if (frvfdpic_plt_section (info)->contents == NULL)
5415 return FALSE;
5416 }
5417 }
5418
5419 return TRUE;
5420 }
5421
5422 /* Set the sizes of the dynamic sections. */
5423
5424 static bfd_boolean
5425 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5426 struct bfd_link_info *info)
5427 {
5428 bfd *dynobj;
5429 asection *s;
5430 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5431
5432 dynobj = elf_hash_table (info)->dynobj;
5433 BFD_ASSERT (dynobj != NULL);
5434
5435 if (elf_hash_table (info)->dynamic_sections_created)
5436 {
5437 /* Set the contents of the .interp section to the interpreter. */
5438 if (bfd_link_executable (info) && !info->nointerp)
5439 {
5440 s = bfd_get_linker_section (dynobj, ".interp");
5441 BFD_ASSERT (s != NULL);
5442 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5443 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5444 }
5445 }
5446
5447 memset (&gpinfo, 0, sizeof (gpinfo));
5448 gpinfo.g.info = info;
5449
5450 for (;;)
5451 {
5452 htab_t relocs = frvfdpic_relocs_info (info);
5453
5454 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5455
5456 if (relocs == frvfdpic_relocs_info (info))
5457 break;
5458 }
5459
5460 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5461 &gpinfo.g);
5462
5463 /* Allocate space to save the summary information, we're going to
5464 use it if we're doing relaxations. */
5465 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5466
5467 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5468 return FALSE;
5469
5470 if (elf_hash_table (info)->dynamic_sections_created)
5471 {
5472 if (frvfdpic_got_section (info)->size)
5473 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5474 return FALSE;
5475
5476 if (frvfdpic_pltrel_section (info)->size)
5477 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5478 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5479 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5480 return FALSE;
5481
5482 if (frvfdpic_gotrel_section (info)->size)
5483 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5484 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5485 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5486 sizeof (Elf32_External_Rel)))
5487 return FALSE;
5488 }
5489
5490 return TRUE;
5491 }
5492
5493 static bfd_boolean
5494 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5495 struct bfd_link_info *info)
5496 {
5497 if (!bfd_link_relocatable (info)
5498 && !bfd_elf_stack_segment_size (output_bfd, info,
5499 "__stacksize", DEFAULT_STACK_SIZE))
5500 return FALSE;
5501
5502 return TRUE;
5503 }
5504
5505 /* Check whether any of the relocations was optimized away, and
5506 subtract it from the relocation or fixup count. */
5507 static bfd_boolean
5508 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5509 struct bfd_link_info *info,
5510
5511 bfd_boolean *changed)
5512 {
5513 Elf_Internal_Shdr *symtab_hdr;
5514 struct elf_link_hash_entry **sym_hashes;
5515 Elf_Internal_Rela *rel, *erel;
5516
5517 if ((sec->flags & SEC_RELOC) == 0
5518 || sec->reloc_count == 0)
5519 return TRUE;
5520
5521 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5522 sym_hashes = elf_sym_hashes (abfd);
5523
5524 rel = elf_section_data (sec)->relocs;
5525
5526 /* Now examine each relocation. */
5527 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5528 {
5529 struct elf_link_hash_entry *h;
5530 unsigned long r_symndx;
5531 struct frvfdpic_relocs_info *picrel;
5532 struct _frvfdpic_dynamic_got_info *dinfo;
5533
5534 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5535 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5536 continue;
5537
5538 if (_bfd_elf_section_offset (sec->output_section->owner,
5539 info, sec, rel->r_offset)
5540 != (bfd_vma)-1)
5541 continue;
5542
5543 r_symndx = ELF32_R_SYM (rel->r_info);
5544 if (r_symndx < symtab_hdr->sh_info)
5545 h = NULL;
5546 else
5547 {
5548 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5549 while (h->root.type == bfd_link_hash_indirect
5550 || h->root.type == bfd_link_hash_warning)
5551 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5552 }
5553
5554 if (h != NULL)
5555 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5556 abfd, h,
5557 rel->r_addend, NO_INSERT);
5558 else
5559 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5560 abfd, r_symndx,
5561 rel->r_addend, NO_INSERT);
5562
5563 if (! picrel)
5564 return FALSE;
5565
5566 *changed = TRUE;
5567 dinfo = frvfdpic_dynamic_got_plt_info (info);
5568
5569 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5570 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5571 picrel->relocs32--;
5572 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5573 picrel->relocsfd--;
5574 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5575 }
5576
5577 return TRUE;
5578 }
5579
5580 static bfd_boolean
5581 frvfdpic_elf_discard_info (bfd *ibfd,
5582 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5583 struct bfd_link_info *info)
5584 {
5585 bfd_boolean changed = FALSE;
5586 asection *s;
5587 bfd *obfd = NULL;
5588
5589 /* Account for relaxation of .eh_frame section. */
5590 for (s = ibfd->sections; s; s = s->next)
5591 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5592 {
5593 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5594 return FALSE;
5595 obfd = s->output_section->owner;
5596 }
5597
5598 if (changed)
5599 {
5600 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5601
5602 memset (&gpinfo, 0, sizeof (gpinfo));
5603 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5604 sizeof (gpinfo.g));
5605
5606 /* Clear GOT and PLT assignments. */
5607 htab_traverse (frvfdpic_relocs_info (info),
5608 _frvfdpic_reset_got_plt_entries,
5609 NULL);
5610
5611 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5612 return FALSE;
5613 }
5614
5615 return TRUE;
5616 }
5617
5618 /* Look for opportunities to relax TLS relocations. We can assume
5619 we're linking the main executable or a static-tls library, since
5620 otherwise we wouldn't have got here. */
5621
5622 static int
5623 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5624 {
5625 struct frvfdpic_relocs_info *entry = *entryp;
5626 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5627
5628 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5629
5630 return 1;
5631 }
5632
5633 static bfd_boolean
5634 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5635 struct bfd_link_info *info, bfd_boolean *again)
5636 {
5637 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5638
5639 if (bfd_link_relocatable (info))
5640 (*info->callbacks->einfo)
5641 (_("%P%F: --relax and -r may not be used together\n"));
5642
5643 /* If we return early, we didn't change anything. */
5644 *again = FALSE;
5645
5646 /* We'll do our thing when requested to relax the GOT section. */
5647 if (sec != frvfdpic_got_section (info))
5648 return TRUE;
5649
5650 /* We can only relax when linking the main executable or a library
5651 that can't be dlopened. */
5652 if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5653 return TRUE;
5654
5655 /* If there isn't a TLS section for this binary, we can't do
5656 anything about its TLS relocations (it probably doesn't have
5657 any. */
5658 if (elf_hash_table (info)->tls_sec == NULL)
5659 return TRUE;
5660
5661 memset (&gpinfo, 0, sizeof (gpinfo));
5662 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5663
5664 /* Now look for opportunities to relax, adjusting the GOT usage
5665 as needed. */
5666 htab_traverse (frvfdpic_relocs_info (info),
5667 _frvfdpic_relax_got_plt_entries,
5668 &gpinfo.g);
5669
5670 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5671 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5672 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5673 {
5674 /* Clear GOT and PLT assignments. */
5675 htab_traverse (frvfdpic_relocs_info (info),
5676 _frvfdpic_reset_got_plt_entries,
5677 NULL);
5678
5679 /* The owner of the TLS section is the output bfd. There should
5680 be a better way to get to it. */
5681 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5682 &gpinfo))
5683 return FALSE;
5684
5685 /* Repeat until we don't make any further changes. We could fail to
5686 introduce changes in a round if, for example, the 12-bit range is
5687 full, but we later release some space by getting rid of TLS
5688 descriptors in it. We have to repeat the whole process because
5689 we might have changed the size of a section processed before this
5690 one. */
5691 *again = TRUE;
5692 }
5693
5694 return TRUE;
5695 }
5696
5697 /* Fill in code and data in dynamic sections. */
5698
5699 static bfd_boolean
5700 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5701 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5702 {
5703 /* Nothing to be done for non-FDPIC. */
5704 return TRUE;
5705 }
5706
5707 static bfd_boolean
5708 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5709 struct bfd_link_info *info)
5710 {
5711 bfd *dynobj;
5712 asection *sdyn;
5713
5714 dynobj = elf_hash_table (info)->dynobj;
5715
5716 if (frvfdpic_dynamic_got_plt_info (info))
5717 {
5718 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5719 }
5720 if (frvfdpic_got_section (info))
5721 {
5722 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5723 == (frvfdpic_gotrel_section (info)->reloc_count
5724 * sizeof (Elf32_External_Rel)));
5725
5726 if (frvfdpic_gotfixup_section (info))
5727 {
5728 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5729 bfd_vma got_value = hgot->root.u.def.value
5730 + hgot->root.u.def.section->output_section->vma
5731 + hgot->root.u.def.section->output_offset;
5732 struct bfd_link_hash_entry *hend;
5733
5734 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5735 got_value, 0);
5736
5737 if (frvfdpic_gotfixup_section (info)->size
5738 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5739 {
5740 error:
5741 info->callbacks->einfo
5742 ("LINKER BUG: .rofixup section size mismatch\n");
5743 return FALSE;
5744 }
5745
5746 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5747 FALSE, FALSE, TRUE);
5748 if (hend
5749 && (hend->type == bfd_link_hash_defined
5750 || hend->type == bfd_link_hash_defweak)
5751 && hend->u.def.section->output_section != NULL)
5752 {
5753 bfd_vma value =
5754 frvfdpic_gotfixup_section (info)->output_section->vma
5755 + frvfdpic_gotfixup_section (info)->output_offset
5756 + frvfdpic_gotfixup_section (info)->size
5757 - hend->u.def.section->output_section->vma
5758 - hend->u.def.section->output_offset;
5759 BFD_ASSERT (hend->u.def.value == value);
5760 if (hend->u.def.value != value)
5761 goto error;
5762 }
5763 }
5764 }
5765 if (frvfdpic_pltrel_section (info))
5766 {
5767 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5768 == (frvfdpic_pltrel_section (info)->reloc_count
5769 * sizeof (Elf32_External_Rel)));
5770 }
5771
5772
5773 if (elf_hash_table (info)->dynamic_sections_created)
5774 {
5775 Elf32_External_Dyn * dyncon;
5776 Elf32_External_Dyn * dynconend;
5777
5778 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5779
5780 BFD_ASSERT (sdyn != NULL);
5781
5782 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5783 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5784
5785 for (; dyncon < dynconend; dyncon++)
5786 {
5787 Elf_Internal_Dyn dyn;
5788
5789 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5790
5791 switch (dyn.d_tag)
5792 {
5793 default:
5794 break;
5795
5796 case DT_PLTGOT:
5797 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5798 + frvfdpic_got_section (info)->output_offset
5799 + frvfdpic_got_initial_offset (info);
5800 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5801 break;
5802
5803 case DT_JMPREL:
5804 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5805 ->output_section->vma
5806 + frvfdpic_pltrel_section (info)->output_offset;
5807 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5808 break;
5809
5810 case DT_PLTRELSZ:
5811 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5812 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5813 break;
5814 }
5815 }
5816 }
5817
5818 return TRUE;
5819 }
5820
5821 /* Adjust a symbol defined by a dynamic object and referenced by a
5822 regular object. */
5823
5824 static bfd_boolean
5825 elf32_frvfdpic_adjust_dynamic_symbol
5826 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5827 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5828 {
5829 bfd * dynobj;
5830
5831 dynobj = elf_hash_table (info)->dynobj;
5832
5833 /* Make sure we know what is going on here. */
5834 BFD_ASSERT (dynobj != NULL
5835 && (h->is_weakalias
5836 || (h->def_dynamic
5837 && h->ref_regular
5838 && !h->def_regular)));
5839
5840 /* If this is a weak symbol, and there is a real definition, the
5841 processor independent code will have arranged for us to see the
5842 real definition first, and we can just use the same value. */
5843 if (h->is_weakalias)
5844 {
5845 struct elf_link_hash_entry *def = weakdef (h);
5846 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
5847 h->root.u.def.section = def->root.u.def.section;
5848 h->root.u.def.value = def->root.u.def.value;
5849 return TRUE;
5850 }
5851
5852 return TRUE;
5853 }
5854
5855 /* Perform any actions needed for dynamic symbols. */
5856
5857 static bfd_boolean
5858 elf32_frvfdpic_finish_dynamic_symbol
5859 (bfd *output_bfd ATTRIBUTE_UNUSED,
5860 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5861 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5862 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5863 {
5864 return TRUE;
5865 }
5866
5867 /* Decide whether to attempt to turn absptr or lsda encodings in
5868 shared libraries into pcrel within the given input section. */
5869
5870 static bfd_boolean
5871 frvfdpic_elf_use_relative_eh_frame
5872 (bfd *input_bfd ATTRIBUTE_UNUSED,
5873 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5874 asection *eh_frame_section ATTRIBUTE_UNUSED)
5875 {
5876 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5877 return FALSE;
5878 }
5879
5880 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5881
5882 static bfd_byte
5883 frvfdpic_elf_encode_eh_address (bfd *abfd,
5884 struct bfd_link_info *info,
5885 asection *osec, bfd_vma offset,
5886 asection *loc_sec, bfd_vma loc_offset,
5887 bfd_vma *encoded)
5888 {
5889 struct elf_link_hash_entry *h;
5890
5891 h = elf_hash_table (info)->hgot;
5892 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5893
5894 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5895 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5896 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5897 loc_sec, loc_offset, encoded);
5898
5899 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5900 == (_frvfdpic_osec_to_segment
5901 (abfd, h->root.u.def.section->output_section)));
5902
5903 *encoded = osec->vma + offset
5904 - (h->root.u.def.value
5905 + h->root.u.def.section->output_section->vma
5906 + h->root.u.def.section->output_offset);
5907
5908 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5909 }
5910
5911 /* Look through the relocs for a section during the first phase.
5912
5913 Besides handling virtual table relocs for gc, we have to deal with
5914 all sorts of PIC-related relocations. We describe below the
5915 general plan on how to handle such relocations, even though we only
5916 collect information at this point, storing them in hash tables for
5917 perusal of later passes.
5918
5919 32 relocations are propagated to the linker output when creating
5920 position-independent output. LO16 and HI16 relocations are not
5921 supposed to be encountered in this case.
5922
5923 LABEL16 should always be resolvable by the linker, since it's only
5924 used by branches.
5925
5926 LABEL24, on the other hand, is used by calls. If it turns out that
5927 the target of a call is a dynamic symbol, a PLT entry must be
5928 created for it, which triggers the creation of a private function
5929 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5930
5931 GPREL relocations require the referenced symbol to be in the same
5932 segment as _gp, but this can only be checked later.
5933
5934 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5935 exist. LABEL24 might as well, since it may require a PLT entry,
5936 that will require a got.
5937
5938 Non-FUNCDESC GOT relocations require a GOT entry to be created
5939 regardless of whether the symbol is dynamic. However, since a
5940 global symbol that turns out to not be exported may have the same
5941 address of a non-dynamic symbol, we don't assign GOT entries at
5942 this point, such that we can share them in this case. A relocation
5943 for the GOT entry always has to be created, be it to offset a
5944 private symbol by the section load address, be it to get the symbol
5945 resolved dynamically.
5946
5947 FUNCDESC GOT relocations require a GOT entry to be created, and
5948 handled as if a FUNCDESC relocation was applied to the GOT entry in
5949 an object file.
5950
5951 FUNCDESC relocations referencing a symbol that turns out to NOT be
5952 dynamic cause a private function descriptor to be created. The
5953 FUNCDESC relocation then decays to a 32 relocation that points at
5954 the private descriptor. If the symbol is dynamic, the FUNCDESC
5955 relocation is propagated to the linker output, such that the
5956 dynamic linker creates the canonical descriptor, pointing to the
5957 dynamically-resolved definition of the function.
5958
5959 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5960 symbols that are assigned to the same segment as the GOT, but we
5961 can only check this later, after we know the complete set of
5962 symbols defined and/or exported.
5963
5964 FUNCDESC GOTOFF relocations require a function descriptor to be
5965 created and, unless lazy binding is disabled or the symbol is not
5966 dynamic, a lazy PLT entry. Since we can't tell at this point
5967 whether a symbol is going to be dynamic, we have to decide later
5968 whether to create a lazy PLT entry or bind the descriptor directly
5969 to the private function.
5970
5971 FUNCDESC_VALUE relocations are not supposed to be present in object
5972 files, but they may very well be simply propagated to the linker
5973 output, since they have no side effect.
5974
5975
5976 A function descriptor always requires a FUNCDESC_VALUE relocation.
5977 Whether it's in .plt.rel or not depends on whether lazy binding is
5978 enabled and on whether the referenced symbol is dynamic.
5979
5980 The existence of a lazy PLT requires the resolverStub lazy PLT
5981 entry to be present.
5982
5983
5984 As for assignment of GOT, PLT and lazy PLT entries, and private
5985 descriptors, we might do them all sequentially, but we can do
5986 better than that. For example, we can place GOT entries and
5987 private function descriptors referenced using 12-bit operands
5988 closer to the PIC register value, such that these relocations don't
5989 overflow. Those that are only referenced with LO16 relocations
5990 could come next, but we may as well place PLT-required function
5991 descriptors in the 12-bit range to make them shorter. Symbols
5992 referenced with LO16/HI16 may come next, but we may place
5993 additional function descriptors in the 16-bit range if we can
5994 reliably tell that we've already placed entries that are ever
5995 referenced with only LO16. PLT entries are therefore generated as
5996 small as possible, while not introducing relocation overflows in
5997 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
5998 generated before or after PLT entries, but not intermingled with
5999 them, such that we can have more lazy PLT entries in range for a
6000 branch to the resolverStub. The resolverStub should be emitted at
6001 the most distant location from the first lazy PLT entry such that
6002 it's still in range for a branch, or closer, if there isn't a need
6003 for so many lazy PLT entries. Additional lazy PLT entries may be
6004 emitted after the resolverStub, as long as branches are still in
6005 range. If the branch goes out of range, longer lazy PLT entries
6006 are emitted.
6007
6008 We could further optimize PLT and lazy PLT entries by giving them
6009 priority in assignment to closer-to-gr17 locations depending on the
6010 number of occurrences of references to them (assuming a function
6011 that's called more often is more important for performance, so its
6012 PLT entry should be faster), or taking hints from the compiler.
6013 Given infinite time and money... :-) */
6014
6015 static bfd_boolean
6016 elf32_frv_check_relocs (bfd *abfd,
6017 struct bfd_link_info *info,
6018 asection *sec,
6019 const Elf_Internal_Rela *relocs)
6020 {
6021 Elf_Internal_Shdr *symtab_hdr;
6022 struct elf_link_hash_entry **sym_hashes;
6023 const Elf_Internal_Rela *rel;
6024 const Elf_Internal_Rela *rel_end;
6025 bfd *dynobj;
6026 struct frvfdpic_relocs_info *picrel;
6027
6028 if (bfd_link_relocatable (info))
6029 return TRUE;
6030
6031 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6032 sym_hashes = elf_sym_hashes (abfd);
6033
6034 dynobj = elf_hash_table (info)->dynobj;
6035 rel_end = relocs + sec->reloc_count;
6036 for (rel = relocs; rel < rel_end; rel++)
6037 {
6038 struct elf_link_hash_entry *h;
6039 unsigned long r_symndx;
6040
6041 r_symndx = ELF32_R_SYM (rel->r_info);
6042 if (r_symndx < symtab_hdr->sh_info)
6043 h = NULL;
6044 else
6045 {
6046 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6047 while (h->root.type == bfd_link_hash_indirect
6048 || h->root.type == bfd_link_hash_warning)
6049 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6050 }
6051
6052 switch (ELF32_R_TYPE (rel->r_info))
6053 {
6054 case R_FRV_GETTLSOFF:
6055 case R_FRV_TLSDESC_VALUE:
6056 case R_FRV_GOTTLSDESC12:
6057 case R_FRV_GOTTLSDESCHI:
6058 case R_FRV_GOTTLSDESCLO:
6059 case R_FRV_GOTTLSOFF12:
6060 case R_FRV_GOTTLSOFFHI:
6061 case R_FRV_GOTTLSOFFLO:
6062 case R_FRV_TLSOFF:
6063 case R_FRV_GOT12:
6064 case R_FRV_GOTHI:
6065 case R_FRV_GOTLO:
6066 case R_FRV_FUNCDESC_GOT12:
6067 case R_FRV_FUNCDESC_GOTHI:
6068 case R_FRV_FUNCDESC_GOTLO:
6069 case R_FRV_GOTOFF12:
6070 case R_FRV_GOTOFFHI:
6071 case R_FRV_GOTOFFLO:
6072 case R_FRV_FUNCDESC_GOTOFF12:
6073 case R_FRV_FUNCDESC_GOTOFFHI:
6074 case R_FRV_FUNCDESC_GOTOFFLO:
6075 case R_FRV_FUNCDESC:
6076 case R_FRV_FUNCDESC_VALUE:
6077 case R_FRV_TLSMOFF12:
6078 case R_FRV_TLSMOFFHI:
6079 case R_FRV_TLSMOFFLO:
6080 case R_FRV_TLSMOFF:
6081 if (! IS_FDPIC (abfd))
6082 goto bad_reloc;
6083 /* Fall through. */
6084 case R_FRV_GPREL12:
6085 case R_FRV_GPRELU12:
6086 case R_FRV_GPRELHI:
6087 case R_FRV_GPRELLO:
6088 case R_FRV_LABEL24:
6089 case R_FRV_32:
6090 if (! dynobj)
6091 {
6092 elf_hash_table (info)->dynobj = dynobj = abfd;
6093 if (! _frv_create_got_section (abfd, info))
6094 return FALSE;
6095 }
6096 if (! IS_FDPIC (abfd))
6097 {
6098 picrel = NULL;
6099 break;
6100 }
6101 if (h != NULL)
6102 {
6103 if (h->dynindx == -1)
6104 switch (ELF_ST_VISIBILITY (h->other))
6105 {
6106 case STV_INTERNAL:
6107 case STV_HIDDEN:
6108 break;
6109 default:
6110 bfd_elf_link_record_dynamic_symbol (info, h);
6111 break;
6112 }
6113 picrel
6114 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6115 abfd, h,
6116 rel->r_addend, INSERT);
6117 }
6118 else
6119 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6120 (info), abfd, r_symndx,
6121 rel->r_addend, INSERT);
6122 if (! picrel)
6123 return FALSE;
6124 break;
6125
6126 default:
6127 picrel = NULL;
6128 break;
6129 }
6130
6131 switch (ELF32_R_TYPE (rel->r_info))
6132 {
6133 case R_FRV_LABEL24:
6134 if (IS_FDPIC (abfd))
6135 picrel->call = 1;
6136 break;
6137
6138 case R_FRV_FUNCDESC_VALUE:
6139 picrel->relocsfdv++;
6140 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6141 picrel->relocs32--;
6142 /* Fall through. */
6143
6144 case R_FRV_32:
6145 if (! IS_FDPIC (abfd))
6146 break;
6147
6148 picrel->sym = 1;
6149 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6150 picrel->relocs32++;
6151 break;
6152
6153 case R_FRV_GOT12:
6154 picrel->got12 = 1;
6155 break;
6156
6157 case R_FRV_GOTHI:
6158 case R_FRV_GOTLO:
6159 picrel->gothilo = 1;
6160 break;
6161
6162 case R_FRV_FUNCDESC_GOT12:
6163 picrel->fdgot12 = 1;
6164 break;
6165
6166 case R_FRV_FUNCDESC_GOTHI:
6167 case R_FRV_FUNCDESC_GOTLO:
6168 picrel->fdgothilo = 1;
6169 break;
6170
6171 case R_FRV_GOTOFF12:
6172 case R_FRV_GOTOFFHI:
6173 case R_FRV_GOTOFFLO:
6174 picrel->gotoff = 1;
6175 break;
6176
6177 case R_FRV_FUNCDESC_GOTOFF12:
6178 picrel->fdgoff12 = 1;
6179 break;
6180
6181 case R_FRV_FUNCDESC_GOTOFFHI:
6182 case R_FRV_FUNCDESC_GOTOFFLO:
6183 picrel->fdgoffhilo = 1;
6184 break;
6185
6186 case R_FRV_FUNCDESC:
6187 picrel->fd = 1;
6188 picrel->relocsfd++;
6189 break;
6190
6191 case R_FRV_GETTLSOFF:
6192 picrel->tlsplt = 1;
6193 break;
6194
6195 case R_FRV_TLSDESC_VALUE:
6196 picrel->relocstlsd++;
6197 goto bad_reloc;
6198
6199 case R_FRV_GOTTLSDESC12:
6200 picrel->tlsdesc12 = 1;
6201 break;
6202
6203 case R_FRV_GOTTLSDESCHI:
6204 case R_FRV_GOTTLSDESCLO:
6205 picrel->tlsdeschilo = 1;
6206 break;
6207
6208 case R_FRV_TLSMOFF12:
6209 case R_FRV_TLSMOFFHI:
6210 case R_FRV_TLSMOFFLO:
6211 case R_FRV_TLSMOFF:
6212 break;
6213
6214 case R_FRV_GOTTLSOFF12:
6215 picrel->tlsoff12 = 1;
6216 info->flags |= DF_STATIC_TLS;
6217 break;
6218
6219 case R_FRV_GOTTLSOFFHI:
6220 case R_FRV_GOTTLSOFFLO:
6221 picrel->tlsoffhilo = 1;
6222 info->flags |= DF_STATIC_TLS;
6223 break;
6224
6225 case R_FRV_TLSOFF:
6226 picrel->relocstlsoff++;
6227 info->flags |= DF_STATIC_TLS;
6228 goto bad_reloc;
6229
6230 /* This relocation describes the C++ object vtable hierarchy.
6231 Reconstruct it for later use during GC. */
6232 case R_FRV_GNU_VTINHERIT:
6233 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6234 return FALSE;
6235 break;
6236
6237 /* This relocation describes which C++ vtable entries are actually
6238 used. Record for later use during GC. */
6239 case R_FRV_GNU_VTENTRY:
6240 BFD_ASSERT (h != NULL);
6241 if (h != NULL
6242 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6243 return FALSE;
6244 break;
6245
6246 case R_FRV_LABEL16:
6247 case R_FRV_LO16:
6248 case R_FRV_HI16:
6249 case R_FRV_GPREL12:
6250 case R_FRV_GPRELU12:
6251 case R_FRV_GPREL32:
6252 case R_FRV_GPRELHI:
6253 case R_FRV_GPRELLO:
6254 case R_FRV_TLSDESC_RELAX:
6255 case R_FRV_GETTLSOFF_RELAX:
6256 case R_FRV_TLSOFF_RELAX:
6257 break;
6258
6259 default:
6260 bad_reloc:
6261 /* xgettext:c-format */
6262 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
6263 abfd, (unsigned int) ELF32_R_TYPE (rel->r_info));
6264 return FALSE;
6265 }
6266 }
6267
6268 return TRUE;
6269 }
6270
6271 \f
6272 /* Return the machine subcode from the ELF e_flags header. */
6273
6274 static int
6275 elf32_frv_machine (bfd *abfd)
6276 {
6277 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6278 {
6279 default: break;
6280 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6281 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6282 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6283 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6284 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6285 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6286 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6287 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6288 }
6289
6290 return bfd_mach_frv;
6291 }
6292
6293 /* Set the right machine number for a FRV ELF file. */
6294
6295 static bfd_boolean
6296 elf32_frv_object_p (bfd *abfd)
6297 {
6298 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6299 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6300 == (IS_FDPIC (abfd)));
6301 }
6302 \f
6303 /* Function to set the ELF flag bits. */
6304
6305 static bfd_boolean
6306 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6307 {
6308 elf_elfheader (abfd)->e_flags = flags;
6309 elf_flags_init (abfd) = TRUE;
6310 return TRUE;
6311 }
6312
6313 /* Return true if the architecture described by elf header flag
6314 EXTENSION is an extension of the architecture described by BASE. */
6315
6316 static bfd_boolean
6317 frv_elf_arch_extension_p (flagword base, flagword extension)
6318 {
6319 if (base == extension)
6320 return TRUE;
6321
6322 /* CPU_GENERIC code can be merged with code for a specific
6323 architecture, in which case the result is marked as being
6324 for the specific architecture. Everything is therefore
6325 an extension of CPU_GENERIC. */
6326 if (base == EF_FRV_CPU_GENERIC)
6327 return TRUE;
6328
6329 if (extension == EF_FRV_CPU_FR450)
6330 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6331 return TRUE;
6332
6333 if (extension == EF_FRV_CPU_FR405)
6334 if (base == EF_FRV_CPU_FR400)
6335 return TRUE;
6336
6337 return FALSE;
6338 }
6339
6340 /* Merge backend specific data from an object file to the output
6341 object file when linking. */
6342
6343 static bfd_boolean
6344 frv_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
6345 {
6346 bfd *obfd = info->output_bfd;
6347 flagword old_flags, old_partial;
6348 flagword new_flags, new_partial;
6349 bfd_boolean error = FALSE;
6350 char new_opt[80];
6351 char old_opt[80];
6352
6353 new_opt[0] = old_opt[0] = '\0';
6354 new_flags = elf_elfheader (ibfd)->e_flags;
6355 old_flags = elf_elfheader (obfd)->e_flags;
6356
6357 if (new_flags & EF_FRV_FDPIC)
6358 new_flags &= ~EF_FRV_PIC;
6359
6360 #ifdef DEBUG
6361 _bfd_error_handler
6362 ("old_flags = 0x%.8x, new_flags = 0x%.8x, init = %s, filename = %s",
6363 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6364 bfd_get_filename (ibfd));
6365 #endif
6366
6367 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6368 {
6369 elf_flags_init (obfd) = TRUE;
6370 old_flags = new_flags;
6371 }
6372
6373 else if (new_flags == old_flags) /* Compatible flags are ok. */
6374 ;
6375
6376 else /* Possibly incompatible flags. */
6377 {
6378 /* Warn if different # of gprs are used. Note, 0 means nothing is
6379 said about the size of gprs. */
6380 new_partial = (new_flags & EF_FRV_GPR_MASK);
6381 old_partial = (old_flags & EF_FRV_GPR_MASK);
6382 if (new_partial == old_partial)
6383 ;
6384
6385 else if (new_partial == 0)
6386 ;
6387
6388 else if (old_partial == 0)
6389 old_flags |= new_partial;
6390
6391 else
6392 {
6393 switch (new_partial)
6394 {
6395 default: strcat (new_opt, " -mgpr-??"); break;
6396 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6397 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6398 }
6399
6400 switch (old_partial)
6401 {
6402 default: strcat (old_opt, " -mgpr-??"); break;
6403 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6404 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6405 }
6406 }
6407
6408 /* Warn if different # of fprs are used. Note, 0 means nothing is
6409 said about the size of fprs. */
6410 new_partial = (new_flags & EF_FRV_FPR_MASK);
6411 old_partial = (old_flags & EF_FRV_FPR_MASK);
6412 if (new_partial == old_partial)
6413 ;
6414
6415 else if (new_partial == 0)
6416 ;
6417
6418 else if (old_partial == 0)
6419 old_flags |= new_partial;
6420
6421 else
6422 {
6423 switch (new_partial)
6424 {
6425 default: strcat (new_opt, " -mfpr-?"); break;
6426 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6427 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6428 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6429 }
6430
6431 switch (old_partial)
6432 {
6433 default: strcat (old_opt, " -mfpr-?"); break;
6434 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6435 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6436 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6437 }
6438 }
6439
6440 /* Warn if different dword support was used. Note, 0 means nothing is
6441 said about the dword support. */
6442 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6443 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6444 if (new_partial == old_partial)
6445 ;
6446
6447 else if (new_partial == 0)
6448 ;
6449
6450 else if (old_partial == 0)
6451 old_flags |= new_partial;
6452
6453 else
6454 {
6455 switch (new_partial)
6456 {
6457 default: strcat (new_opt, " -mdword-?"); break;
6458 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6459 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6460 }
6461
6462 switch (old_partial)
6463 {
6464 default: strcat (old_opt, " -mdword-?"); break;
6465 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6466 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6467 }
6468 }
6469
6470 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6471 feature is used. */
6472 old_flags |= new_flags & (EF_FRV_DOUBLE
6473 | EF_FRV_MEDIA
6474 | EF_FRV_MULADD
6475 | EF_FRV_NON_PIC_RELOCS);
6476
6477 /* If any module was compiled without -G0, clear the G0 bit. */
6478 old_flags = ((old_flags & ~ EF_FRV_G0)
6479 | (old_flags & new_flags & EF_FRV_G0));
6480
6481 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6482 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6483 | (old_flags & new_flags & EF_FRV_NOPACK));
6484
6485 /* We don't have to do anything if the pic flags are the same, or the new
6486 module(s) were compiled with -mlibrary-pic. */
6487 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6488 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6489 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6490 ;
6491
6492 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6493 flags if any from the new module. */
6494 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6495 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6496
6497 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6498 else if (new_partial != 0 && old_partial != 0)
6499 old_flags |= new_partial;
6500
6501 /* One module was compiled for pic and the other was not, see if we have
6502 had any relocations that are not pic-safe. */
6503 else
6504 {
6505 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6506 old_flags |= new_partial;
6507 else
6508 {
6509 old_flags &= ~ EF_FRV_PIC_FLAGS;
6510 #ifndef FRV_NO_PIC_ERROR
6511 error = TRUE;
6512 _bfd_error_handler
6513 /* xgettext:c-format */
6514 (_("%pB: compiled with %s and linked with modules"
6515 " that use non-pic relocations"),
6516 ibfd, (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6517 #endif
6518 }
6519 }
6520
6521 /* Warn if different cpu is used (allow a specific cpu to override
6522 the generic cpu). */
6523 new_partial = (new_flags & EF_FRV_CPU_MASK);
6524 old_partial = (old_flags & EF_FRV_CPU_MASK);
6525 if (frv_elf_arch_extension_p (new_partial, old_partial))
6526 ;
6527
6528 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6529 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6530
6531 else
6532 {
6533 switch (new_partial)
6534 {
6535 default: strcat (new_opt, " -mcpu=?"); break;
6536 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6537 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6538 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6539 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6540 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6541 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6542 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6543 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6544 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6545 }
6546
6547 switch (old_partial)
6548 {
6549 default: strcat (old_opt, " -mcpu=?"); break;
6550 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6551 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6552 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6553 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6554 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6555 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6556 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6557 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6558 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6559 }
6560 }
6561
6562 /* Print out any mismatches from above. */
6563 if (new_opt[0])
6564 {
6565 error = TRUE;
6566 _bfd_error_handler
6567 /* xgettext:c-format */
6568 (_("%pB: compiled with %s and linked with modules compiled with %s"),
6569 ibfd, new_opt, old_opt);
6570 }
6571
6572 /* Warn about any other mismatches */
6573 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6574 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6575 if (new_partial != old_partial)
6576 {
6577 old_flags |= new_partial;
6578 error = TRUE;
6579 _bfd_error_handler
6580 /* xgettext:c-format */
6581 (_("%pB: uses different unknown e_flags (%#x) fields"
6582 " than previous modules (%#x)"),
6583 ibfd, new_partial, old_partial);
6584 }
6585 }
6586
6587 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6588 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6589 old_flags |= EF_FRV_NOPACK;
6590
6591 /* Update the old flags now with changes made above. */
6592 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6593 elf_elfheader (obfd)->e_flags = old_flags;
6594 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6595 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6596
6597 if (((new_flags & EF_FRV_FDPIC) == 0)
6598 != (! IS_FDPIC (ibfd)))
6599 {
6600 error = TRUE;
6601 if (IS_FDPIC (obfd))
6602 _bfd_error_handler
6603 (_("%pB: cannot link non-fdpic object file into fdpic executable"),
6604 ibfd);
6605 else
6606 _bfd_error_handler
6607 (_("%pB: cannot link fdpic object file into non-fdpic executable"),
6608 ibfd);
6609 }
6610
6611 if (error)
6612 bfd_set_error (bfd_error_bad_value);
6613
6614 return !error;
6615 }
6616
6617 \f
6618 static bfd_boolean
6619 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6620 {
6621 FILE *file = (FILE *) ptr;
6622 flagword flags;
6623
6624 BFD_ASSERT (abfd != NULL && ptr != NULL);
6625
6626 /* Print normal ELF private data. */
6627 _bfd_elf_print_private_bfd_data (abfd, ptr);
6628
6629 flags = elf_elfheader (abfd)->e_flags;
6630 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6631
6632 switch (flags & EF_FRV_CPU_MASK)
6633 {
6634 default: break;
6635 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6636 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6637 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6638 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6639 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6640 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6641 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6642 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6643 }
6644
6645 switch (flags & EF_FRV_GPR_MASK)
6646 {
6647 default: break;
6648 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6649 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6650 }
6651
6652 switch (flags & EF_FRV_FPR_MASK)
6653 {
6654 default: break;
6655 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6656 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6657 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6658 }
6659
6660 switch (flags & EF_FRV_DWORD_MASK)
6661 {
6662 default: break;
6663 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6664 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6665 }
6666
6667 if (flags & EF_FRV_DOUBLE)
6668 fprintf (file, " -mdouble");
6669
6670 if (flags & EF_FRV_MEDIA)
6671 fprintf (file, " -mmedia");
6672
6673 if (flags & EF_FRV_MULADD)
6674 fprintf (file, " -mmuladd");
6675
6676 if (flags & EF_FRV_PIC)
6677 fprintf (file, " -fpic");
6678
6679 if (flags & EF_FRV_BIGPIC)
6680 fprintf (file, " -fPIC");
6681
6682 if (flags & EF_FRV_LIBPIC)
6683 fprintf (file, " -mlibrary-pic");
6684
6685 if (flags & EF_FRV_FDPIC)
6686 fprintf (file, " -mfdpic");
6687
6688 if (flags & EF_FRV_NON_PIC_RELOCS)
6689 fprintf (file, " non-pic relocations");
6690
6691 if (flags & EF_FRV_G0)
6692 fprintf (file, " -G0");
6693
6694 fputc ('\n', file);
6695 return TRUE;
6696 }
6697
6698 \f
6699 /* Support for core dump NOTE sections. */
6700
6701 static bfd_boolean
6702 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6703 {
6704 int offset;
6705 unsigned int raw_size;
6706
6707 switch (note->descsz)
6708 {
6709 default:
6710 return FALSE;
6711
6712 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6713 hardcoded offsets and sizes listed below (and contained within
6714 this lexical block) refer to fields in the target's elf_prstatus
6715 struct. */
6716 case 268:
6717 /* `pr_cursig' is at offset 12. */
6718 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6719
6720 /* `pr_pid' is at offset 24. */
6721 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6722
6723 /* `pr_reg' is at offset 72. */
6724 offset = 72;
6725
6726 /* Most grok_prstatus implementations set `raw_size' to the size
6727 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6728 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6729 and `pr_interp_fdpic_loadmap', both of which (by design)
6730 immediately follow `pr_reg'. This will allow these fields to
6731 be viewed by GDB as registers.
6732
6733 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6734 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6735 raw_size = 184 + 4 + 4;
6736
6737 break;
6738 }
6739
6740 /* Make a ".reg/999" section. */
6741 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6742 note->descpos + offset);
6743 }
6744
6745 static bfd_boolean
6746 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6747 {
6748 switch (note->descsz)
6749 {
6750 default:
6751 return FALSE;
6752
6753 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6754 case 124:
6755
6756 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6757 elf_tdata (abfd)->core->program
6758 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6759
6760 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6761 elf_tdata (abfd)->core->command
6762 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6763 }
6764
6765 /* Note that for some reason, a spurious space is tacked
6766 onto the end of the args in some (at least one anyway)
6767 implementations, so strip it off if it exists. */
6768
6769 {
6770 char *command = elf_tdata (abfd)->core->command;
6771 int n = strlen (command);
6772
6773 if (0 < n && command[n - 1] == ' ')
6774 command[n - 1] = '\0';
6775 }
6776
6777 return TRUE;
6778 }
6779 #define ELF_ARCH bfd_arch_frv
6780 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6781 #define ELF_MAXPAGESIZE 0x1000
6782
6783 #define TARGET_BIG_SYM frv_elf32_vec
6784 #define TARGET_BIG_NAME "elf32-frv"
6785
6786 #define elf_info_to_howto frv_info_to_howto_rela
6787 #define elf_backend_relocate_section elf32_frv_relocate_section
6788 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6789 #define elf_backend_check_relocs elf32_frv_check_relocs
6790 #define elf_backend_object_p elf32_frv_object_p
6791 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6792
6793 #define elf_backend_stack_align 8
6794 #define elf_backend_can_gc_sections 1
6795 #define elf_backend_rela_normal 1
6796
6797 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6798 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6799 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6800 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6801 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6802
6803 #define elf_backend_want_got_sym 1
6804 #define elf_backend_got_header_size 0
6805 #define elf_backend_want_got_plt 0
6806 #define elf_backend_plt_readonly 1
6807 #define elf_backend_want_plt_sym 0
6808 #define elf_backend_plt_header_size 0
6809
6810 #define elf_backend_finish_dynamic_sections \
6811 elf32_frv_finish_dynamic_sections
6812
6813 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6814 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6815
6816 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
6817
6818 #include "elf32-target.h"
6819
6820 #undef ELF_TARGET_ID
6821 #define ELF_TARGET_ID FRV_ELF_DATA
6822 #undef ELF_MAXPAGESIZE
6823 #define ELF_MAXPAGESIZE 0x4000
6824
6825 #undef TARGET_BIG_SYM
6826 #define TARGET_BIG_SYM frv_elf32_fdpic_vec
6827 #undef TARGET_BIG_NAME
6828 #define TARGET_BIG_NAME "elf32-frvfdpic"
6829 #undef elf32_bed
6830 #define elf32_bed elf32_frvfdpic_bed
6831
6832 #undef elf_info_to_howto_rel
6833 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6834
6835 #undef bfd_elf32_bfd_link_hash_table_create
6836 #define bfd_elf32_bfd_link_hash_table_create \
6837 frvfdpic_elf_link_hash_table_create
6838 #undef elf_backend_always_size_sections
6839 #define elf_backend_always_size_sections \
6840 elf32_frvfdpic_always_size_sections
6841
6842 #undef elf_backend_create_dynamic_sections
6843 #define elf_backend_create_dynamic_sections \
6844 elf32_frvfdpic_create_dynamic_sections
6845 #undef elf_backend_adjust_dynamic_symbol
6846 #define elf_backend_adjust_dynamic_symbol \
6847 elf32_frvfdpic_adjust_dynamic_symbol
6848 #undef elf_backend_size_dynamic_sections
6849 #define elf_backend_size_dynamic_sections \
6850 elf32_frvfdpic_size_dynamic_sections
6851 #undef bfd_elf32_bfd_relax_section
6852 #define bfd_elf32_bfd_relax_section \
6853 elf32_frvfdpic_relax_section
6854 #undef elf_backend_finish_dynamic_symbol
6855 #define elf_backend_finish_dynamic_symbol \
6856 elf32_frvfdpic_finish_dynamic_symbol
6857 #undef elf_backend_finish_dynamic_sections
6858 #define elf_backend_finish_dynamic_sections \
6859 elf32_frvfdpic_finish_dynamic_sections
6860
6861 #undef elf_backend_discard_info
6862 #define elf_backend_discard_info \
6863 frvfdpic_elf_discard_info
6864 #undef elf_backend_can_make_relative_eh_frame
6865 #define elf_backend_can_make_relative_eh_frame \
6866 frvfdpic_elf_use_relative_eh_frame
6867 #undef elf_backend_can_make_lsda_relative_eh_frame
6868 #define elf_backend_can_make_lsda_relative_eh_frame \
6869 frvfdpic_elf_use_relative_eh_frame
6870 #undef elf_backend_encode_eh_address
6871 #define elf_backend_encode_eh_address \
6872 frvfdpic_elf_encode_eh_address
6873
6874 #undef elf_backend_may_use_rel_p
6875 #define elf_backend_may_use_rel_p 1
6876 #undef elf_backend_may_use_rela_p
6877 #define elf_backend_may_use_rela_p 1
6878 /* We use REL for dynamic relocations only. */
6879 #undef elf_backend_default_use_rela_p
6880 #define elf_backend_default_use_rela_p 1
6881
6882 #undef elf_backend_omit_section_dynsym
6883 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6884
6885 #include "elf32-target.h"
GDB Binutils - Deliverables
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