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Fix compile time warnings generated when compiling with clang.
[thirdparty/binutils-gdb.git] / bfd / elf32-frv.c
1 /* FRV-specific support for 32-bit ELF.
2 Copyright (C) 2002-2015 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/frv.h"
26 #include "dwarf2.h"
27 #include "hashtab.h"
28
29 /* Forward declarations. */
30
31
32 static reloc_howto_type elf32_frv_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_FRV_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_FRV_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_FRV_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_bitfield, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_FRV_32", /* name */
59 FALSE, /* partial_inplace */
60 0xffffffff, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit pc-relative relocation. */
65 HOWTO (R_FRV_LABEL16, /* type */
66 2, /* rightshift */
67 2, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 TRUE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_signed, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_FRV_LABEL16", /* name */
74 FALSE, /* partial_inplace */
75 0xffff, /* src_mask */
76 0xffff, /* dst_mask */
77 TRUE), /* pcrel_offset */
78
79 /* A 24-bit pc-relative relocation. */
80 HOWTO (R_FRV_LABEL24, /* type */
81 2, /* rightshift */
82 2, /* size (0 = byte, 1 = short, 2 = long) */
83 26, /* bitsize */
84 TRUE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_bitfield, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_FRV_LABEL24", /* name */
89 FALSE, /* partial_inplace */
90 0x7e03ffff, /* src_mask */
91 0x7e03ffff, /* dst_mask */
92 TRUE), /* pcrel_offset */
93
94 HOWTO (R_FRV_LO16, /* type */
95 0, /* rightshift */
96 2, /* size (0 = byte, 1 = short, 2 = long) */
97 16, /* bitsize */
98 FALSE, /* pc_relative */
99 0, /* bitpos */
100 complain_overflow_dont, /* complain_on_overflow */
101 bfd_elf_generic_reloc, /* special_function */
102 "R_FRV_LO16", /* name */
103 FALSE, /* partial_inplace */
104 0xffff, /* src_mask */
105 0xffff, /* dst_mask */
106 FALSE), /* pcrel_offset */
107
108 HOWTO (R_FRV_HI16, /* type */
109 0, /* rightshift */
110 2, /* size (0 = byte, 1 = short, 2 = long) */
111 16, /* bitsize */
112 FALSE, /* pc_relative */
113 0, /* bitpos */
114 complain_overflow_dont, /* complain_on_overflow */
115 bfd_elf_generic_reloc, /* special_function */
116 "R_FRV_HI16", /* name */
117 FALSE, /* partial_inplace */
118 0xffff, /* src_mask */
119 0xffff, /* dst_mask */
120 FALSE), /* pcrel_offset */
121
122 HOWTO (R_FRV_GPREL12, /* type */
123 0, /* rightshift */
124 2, /* size (0 = byte, 1 = short, 2 = long) */
125 12, /* bitsize */
126 FALSE, /* pc_relative */
127 0, /* bitpos */
128 complain_overflow_dont, /* complain_on_overflow */
129 bfd_elf_generic_reloc, /* special_function */
130 "R_FRV_GPREL12", /* name */
131 FALSE, /* partial_inplace */
132 0xfff, /* src_mask */
133 0xfff, /* dst_mask */
134 FALSE), /* pcrel_offset */
135
136 HOWTO (R_FRV_GPRELU12, /* type */
137 0, /* rightshift */
138 2, /* size (0 = byte, 1 = short, 2 = long) */
139 12, /* bitsize */
140 FALSE, /* pc_relative */
141 0, /* bitpos */
142 complain_overflow_dont, /* complain_on_overflow */
143 bfd_elf_generic_reloc, /* special_function */
144 "R_FRV_GPRELU12", /* name */
145 FALSE, /* partial_inplace */
146 0xfff, /* src_mask */
147 0x3f03f, /* dst_mask */
148 FALSE), /* pcrel_offset */
149
150 HOWTO (R_FRV_GPREL32, /* type */
151 0, /* rightshift */
152 2, /* size (0 = byte, 1 = short, 2 = long) */
153 32, /* bitsize */
154 FALSE, /* pc_relative */
155 0, /* bitpos */
156 complain_overflow_dont, /* complain_on_overflow */
157 bfd_elf_generic_reloc, /* special_function */
158 "R_FRV_GPREL32", /* name */
159 FALSE, /* partial_inplace */
160 0xffffffff, /* src_mask */
161 0xffffffff, /* dst_mask */
162 FALSE), /* pcrel_offset */
163
164 HOWTO (R_FRV_GPRELHI, /* type */
165 0, /* rightshift */
166 2, /* size (0 = byte, 1 = short, 2 = long) */
167 16, /* bitsize */
168 FALSE, /* pc_relative */
169 0, /* bitpos */
170 complain_overflow_dont, /* complain_on_overflow */
171 bfd_elf_generic_reloc, /* special_function */
172 "R_FRV_GPRELHI", /* name */
173 FALSE, /* partial_inplace */
174 0xffff, /* src_mask */
175 0xffff, /* dst_mask */
176 FALSE), /* pcrel_offset */
177
178 HOWTO (R_FRV_GPRELLO, /* type */
179 0, /* rightshift */
180 2, /* size (0 = byte, 1 = short, 2 = long) */
181 16, /* bitsize */
182 FALSE, /* pc_relative */
183 0, /* bitpos */
184 complain_overflow_dont, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_FRV_GPRELLO", /* name */
187 FALSE, /* partial_inplace */
188 0xffff, /* src_mask */
189 0xffff, /* dst_mask */
190 FALSE), /* pcrel_offset */
191
192 /* A 12-bit signed operand with the GOT offset for the address of
193 the symbol. */
194 HOWTO (R_FRV_GOT12, /* type */
195 0, /* rightshift */
196 2, /* size (0 = byte, 1 = short, 2 = long) */
197 12, /* bitsize */
198 FALSE, /* pc_relative */
199 0, /* bitpos */
200 complain_overflow_signed, /* complain_on_overflow */
201 bfd_elf_generic_reloc, /* special_function */
202 "R_FRV_GOT12", /* name */
203 FALSE, /* partial_inplace */
204 0xfff, /* src_mask */
205 0xfff, /* dst_mask */
206 FALSE), /* pcrel_offset */
207
208 /* The upper 16 bits of the GOT offset for the address of the
209 symbol. */
210 HOWTO (R_FRV_GOTHI, /* type */
211 0, /* rightshift */
212 2, /* size (0 = byte, 1 = short, 2 = long) */
213 16, /* bitsize */
214 FALSE, /* pc_relative */
215 0, /* bitpos */
216 complain_overflow_dont, /* complain_on_overflow */
217 bfd_elf_generic_reloc, /* special_function */
218 "R_FRV_GOTHI", /* name */
219 FALSE, /* partial_inplace */
220 0xffff, /* src_mask */
221 0xffff, /* dst_mask */
222 FALSE), /* pcrel_offset */
223
224 /* The lower 16 bits of the GOT offset for the address of the
225 symbol. */
226 HOWTO (R_FRV_GOTLO, /* type */
227 0, /* rightshift */
228 2, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
230 FALSE, /* pc_relative */
231 0, /* bitpos */
232 complain_overflow_dont, /* complain_on_overflow */
233 bfd_elf_generic_reloc, /* special_function */
234 "R_FRV_GOTLO", /* name */
235 FALSE, /* partial_inplace */
236 0xffff, /* src_mask */
237 0xffff, /* dst_mask */
238 FALSE), /* pcrel_offset */
239
240 /* The 32-bit address of the canonical descriptor of a function. */
241 HOWTO (R_FRV_FUNCDESC, /* type */
242 0, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 32, /* bitsize */
245 FALSE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_bitfield, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_FRV_FUNCDESC", /* name */
250 FALSE, /* partial_inplace */
251 0xffffffff, /* src_mask */
252 0xffffffff, /* dst_mask */
253 FALSE), /* pcrel_offset */
254
255 /* A 12-bit signed operand with the GOT offset for the address of
256 canonical descriptor of a function. */
257 HOWTO (R_FRV_FUNCDESC_GOT12, /* type */
258 0, /* rightshift */
259 2, /* size (0 = byte, 1 = short, 2 = long) */
260 12, /* bitsize */
261 FALSE, /* pc_relative */
262 0, /* bitpos */
263 complain_overflow_signed, /* complain_on_overflow */
264 bfd_elf_generic_reloc, /* special_function */
265 "R_FRV_FUNCDESC_GOT12", /* name */
266 FALSE, /* partial_inplace */
267 0xfff, /* src_mask */
268 0xfff, /* dst_mask */
269 FALSE), /* pcrel_offset */
270
271 /* The upper 16 bits of the GOT offset for the address of the
272 canonical descriptor of a function. */
273 HOWTO (R_FRV_FUNCDESC_GOTHI, /* type */
274 0, /* rightshift */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
276 16, /* bitsize */
277 FALSE, /* pc_relative */
278 0, /* bitpos */
279 complain_overflow_dont, /* complain_on_overflow */
280 bfd_elf_generic_reloc, /* special_function */
281 "R_FRV_FUNCDESC_GOTHI", /* name */
282 FALSE, /* partial_inplace */
283 0xffff, /* src_mask */
284 0xffff, /* dst_mask */
285 FALSE), /* pcrel_offset */
286
287 /* The lower 16 bits of the GOT offset for the address of the
288 canonical descriptor of a function. */
289 HOWTO (R_FRV_FUNCDESC_GOTLO, /* type */
290 0, /* rightshift */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
293 FALSE, /* pc_relative */
294 0, /* bitpos */
295 complain_overflow_dont, /* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_FRV_FUNCDESC_GOTLO", /* name */
298 FALSE, /* partial_inplace */
299 0xffff, /* src_mask */
300 0xffff, /* dst_mask */
301 FALSE), /* pcrel_offset */
302
303 /* The 64-bit descriptor of a function. */
304 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
305 0, /* rightshift */
306 2, /* size (0 = byte, 1 = short, 2 = long) */
307 64, /* bitsize */
308 FALSE, /* pc_relative */
309 0, /* bitpos */
310 complain_overflow_bitfield, /* complain_on_overflow */
311 bfd_elf_generic_reloc, /* special_function */
312 "R_FRV_FUNCDESC_VALUE", /* name */
313 FALSE, /* partial_inplace */
314 0xffffffff, /* src_mask */
315 0xffffffff, /* dst_mask */
316 FALSE), /* pcrel_offset */
317
318 /* A 12-bit signed operand with the GOT offset for the address of
319 canonical descriptor of a function. */
320 HOWTO (R_FRV_FUNCDESC_GOTOFF12, /* type */
321 0, /* rightshift */
322 2, /* size (0 = byte, 1 = short, 2 = long) */
323 12, /* bitsize */
324 FALSE, /* pc_relative */
325 0, /* bitpos */
326 complain_overflow_signed, /* complain_on_overflow */
327 bfd_elf_generic_reloc, /* special_function */
328 "R_FRV_FUNCDESC_GOTOFF12", /* name */
329 FALSE, /* partial_inplace */
330 0xfff, /* src_mask */
331 0xfff, /* dst_mask */
332 FALSE), /* pcrel_offset */
333
334 /* The upper 16 bits of the GOT offset for the address of the
335 canonical descriptor of a function. */
336 HOWTO (R_FRV_FUNCDESC_GOTOFFHI, /* type */
337 0, /* rightshift */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
339 16, /* bitsize */
340 FALSE, /* pc_relative */
341 0, /* bitpos */
342 complain_overflow_dont, /* complain_on_overflow */
343 bfd_elf_generic_reloc, /* special_function */
344 "R_FRV_FUNCDESC_GOTOFFHI", /* name */
345 FALSE, /* partial_inplace */
346 0xffff, /* src_mask */
347 0xffff, /* dst_mask */
348 FALSE), /* pcrel_offset */
349
350 /* The lower 16 bits of the GOT offset for the address of the
351 canonical descriptor of a function. */
352 HOWTO (R_FRV_FUNCDESC_GOTOFFLO, /* type */
353 0, /* rightshift */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
355 16, /* bitsize */
356 FALSE, /* pc_relative */
357 0, /* bitpos */
358 complain_overflow_dont, /* complain_on_overflow */
359 bfd_elf_generic_reloc, /* special_function */
360 "R_FRV_FUNCDESC_GOTOFFLO", /* name */
361 FALSE, /* partial_inplace */
362 0xffff, /* src_mask */
363 0xffff, /* dst_mask */
364 FALSE), /* pcrel_offset */
365
366 /* A 12-bit signed operand with the GOT offset for the address of
367 the symbol. */
368 HOWTO (R_FRV_GOTOFF12, /* type */
369 0, /* rightshift */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
371 12, /* bitsize */
372 FALSE, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_FRV_GOTOFF12", /* name */
377 FALSE, /* partial_inplace */
378 0xfff, /* src_mask */
379 0xfff, /* dst_mask */
380 FALSE), /* pcrel_offset */
381
382 /* The upper 16 bits of the GOT offset for the address of the
383 symbol. */
384 HOWTO (R_FRV_GOTOFFHI, /* type */
385 0, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 16, /* bitsize */
388 FALSE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_dont, /* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_FRV_GOTOFFHI", /* name */
393 FALSE, /* partial_inplace */
394 0xffff, /* src_mask */
395 0xffff, /* dst_mask */
396 FALSE), /* pcrel_offset */
397
398 /* The lower 16 bits of the GOT offset for the address of the
399 symbol. */
400 HOWTO (R_FRV_GOTOFFLO, /* type */
401 0, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 16, /* bitsize */
404 FALSE, /* pc_relative */
405 0, /* bitpos */
406 complain_overflow_dont, /* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_FRV_GOTOFFLO", /* name */
409 FALSE, /* partial_inplace */
410 0xffff, /* src_mask */
411 0xffff, /* dst_mask */
412 FALSE), /* pcrel_offset */
413
414 /* A 24-bit pc-relative relocation referencing the TLS PLT entry for
415 a thread-local symbol. If the symbol number is 0, it refers to
416 the module. */
417 HOWTO (R_FRV_GETTLSOFF, /* type */
418 2, /* rightshift */
419 2, /* size (0 = byte, 1 = short, 2 = long) */
420 26, /* bitsize */
421 TRUE, /* pc_relative */
422 0, /* bitpos */
423 complain_overflow_bitfield, /* complain_on_overflow */
424 bfd_elf_generic_reloc, /* special_function */
425 "R_FRV_GETTLSOFF", /* name */
426 FALSE, /* partial_inplace */
427 0x7e03ffff, /* src_mask */
428 0x7e03ffff, /* dst_mask */
429 TRUE), /* pcrel_offset */
430
431 /* A 64-bit TLS descriptor for a symbol. This relocation is only
432 valid as a REL, dynamic relocation. */
433 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
434 0, /* rightshift */
435 2, /* size (0 = byte, 1 = short, 2 = long) */
436 64, /* bitsize */
437 FALSE, /* pc_relative */
438 0, /* bitpos */
439 complain_overflow_bitfield, /* complain_on_overflow */
440 bfd_elf_generic_reloc, /* special_function */
441 "R_FRV_TLSDESC_VALUE", /* name */
442 FALSE, /* partial_inplace */
443 0xffffffff, /* src_mask */
444 0xffffffff, /* dst_mask */
445 FALSE), /* pcrel_offset */
446
447 /* A 12-bit signed operand with the GOT offset for the TLS
448 descriptor of the symbol. */
449 HOWTO (R_FRV_GOTTLSDESC12, /* type */
450 0, /* rightshift */
451 2, /* size (0 = byte, 1 = short, 2 = long) */
452 12, /* bitsize */
453 FALSE, /* pc_relative */
454 0, /* bitpos */
455 complain_overflow_signed, /* complain_on_overflow */
456 bfd_elf_generic_reloc, /* special_function */
457 "R_FRV_GOTTLSDESC12", /* name */
458 FALSE, /* partial_inplace */
459 0xfff, /* src_mask */
460 0xfff, /* dst_mask */
461 FALSE), /* pcrel_offset */
462
463 /* The upper 16 bits of the GOT offset for the TLS descriptor of the
464 symbol. */
465 HOWTO (R_FRV_GOTTLSDESCHI, /* type */
466 0, /* rightshift */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
468 16, /* bitsize */
469 FALSE, /* pc_relative */
470 0, /* bitpos */
471 complain_overflow_dont, /* complain_on_overflow */
472 bfd_elf_generic_reloc, /* special_function */
473 "R_FRV_GOTTLSDESCHI", /* name */
474 FALSE, /* partial_inplace */
475 0xffff, /* src_mask */
476 0xffff, /* dst_mask */
477 FALSE), /* pcrel_offset */
478
479 /* The lower 16 bits of the GOT offset for the TLS descriptor of the
480 symbol. */
481 HOWTO (R_FRV_GOTTLSDESCLO, /* type */
482 0, /* rightshift */
483 2, /* size (0 = byte, 1 = short, 2 = long) */
484 16, /* bitsize */
485 FALSE, /* pc_relative */
486 0, /* bitpos */
487 complain_overflow_dont, /* complain_on_overflow */
488 bfd_elf_generic_reloc, /* special_function */
489 "R_FRV_GOTTLSDESCLO", /* name */
490 FALSE, /* partial_inplace */
491 0xffff, /* src_mask */
492 0xffff, /* dst_mask */
493 FALSE), /* pcrel_offset */
494
495 /* A 12-bit signed operand with the offset from the module base
496 address to the thread-local symbol address. */
497 HOWTO (R_FRV_TLSMOFF12, /* type */
498 0, /* rightshift */
499 2, /* size (0 = byte, 1 = short, 2 = long) */
500 12, /* bitsize */
501 FALSE, /* pc_relative */
502 0, /* bitpos */
503 complain_overflow_signed, /* complain_on_overflow */
504 bfd_elf_generic_reloc, /* special_function */
505 "R_FRV_TLSMOFF12", /* name */
506 FALSE, /* partial_inplace */
507 0xfff, /* src_mask */
508 0xfff, /* dst_mask */
509 FALSE), /* pcrel_offset */
510
511 /* The upper 16 bits of the offset from the module base address to
512 the thread-local symbol address. */
513 HOWTO (R_FRV_TLSMOFFHI, /* type */
514 0, /* rightshift */
515 2, /* size (0 = byte, 1 = short, 2 = long) */
516 16, /* bitsize */
517 FALSE, /* pc_relative */
518 0, /* bitpos */
519 complain_overflow_dont, /* complain_on_overflow */
520 bfd_elf_generic_reloc, /* special_function */
521 "R_FRV_TLSMOFFHI", /* name */
522 FALSE, /* partial_inplace */
523 0xffff, /* src_mask */
524 0xffff, /* dst_mask */
525 FALSE), /* pcrel_offset */
526
527 /* The lower 16 bits of the offset from the module base address to
528 the thread-local symbol address. */
529 HOWTO (R_FRV_TLSMOFFLO, /* type */
530 0, /* rightshift */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
532 16, /* bitsize */
533 FALSE, /* pc_relative */
534 0, /* bitpos */
535 complain_overflow_dont, /* complain_on_overflow */
536 bfd_elf_generic_reloc, /* special_function */
537 "R_FRV_TLSMOFFLO", /* name */
538 FALSE, /* partial_inplace */
539 0xffff, /* src_mask */
540 0xffff, /* dst_mask */
541 FALSE), /* pcrel_offset */
542
543 /* A 12-bit signed operand with the GOT offset for the TLSOFF entry
544 for a symbol. */
545 HOWTO (R_FRV_GOTTLSOFF12, /* type */
546 0, /* rightshift */
547 2, /* size (0 = byte, 1 = short, 2 = long) */
548 12, /* bitsize */
549 FALSE, /* pc_relative */
550 0, /* bitpos */
551 complain_overflow_signed, /* complain_on_overflow */
552 bfd_elf_generic_reloc, /* special_function */
553 "R_FRV_GOTTLSOFF12", /* name */
554 FALSE, /* partial_inplace */
555 0xfff, /* src_mask */
556 0xfff, /* dst_mask */
557 FALSE), /* pcrel_offset */
558
559 /* The upper 16 bits of the GOT offset for the TLSOFF entry for a
560 symbol. */
561 HOWTO (R_FRV_GOTTLSOFFHI, /* type */
562 0, /* rightshift */
563 2, /* size (0 = byte, 1 = short, 2 = long) */
564 16, /* bitsize */
565 FALSE, /* pc_relative */
566 0, /* bitpos */
567 complain_overflow_dont, /* complain_on_overflow */
568 bfd_elf_generic_reloc, /* special_function */
569 "R_FRV_GOTTLSOFFHI", /* name */
570 FALSE, /* partial_inplace */
571 0xffff, /* src_mask */
572 0xffff, /* dst_mask */
573 FALSE), /* pcrel_offset */
574
575 /* The lower 16 bits of the GOT offset for the TLSOFF entry for a
576 symbol. */
577 HOWTO (R_FRV_GOTTLSOFFLO, /* type */
578 0, /* rightshift */
579 2, /* size (0 = byte, 1 = short, 2 = long) */
580 16, /* bitsize */
581 FALSE, /* pc_relative */
582 0, /* bitpos */
583 complain_overflow_dont, /* complain_on_overflow */
584 bfd_elf_generic_reloc, /* special_function */
585 "R_FRV_GOTTLSOFFLO", /* name */
586 FALSE, /* partial_inplace */
587 0xffff, /* src_mask */
588 0xffff, /* dst_mask */
589 FALSE), /* pcrel_offset */
590
591 /* The 32-bit offset from the thread pointer (not the module base
592 address) to a thread-local symbol. */
593 HOWTO (R_FRV_TLSOFF, /* type */
594 0, /* rightshift */
595 2, /* size (0 = byte, 1 = short, 2 = long) */
596 32, /* bitsize */
597 FALSE, /* pc_relative */
598 0, /* bitpos */
599 complain_overflow_dont, /* complain_on_overflow */
600 bfd_elf_generic_reloc, /* special_function */
601 "R_FRV_TLSOFF", /* name */
602 FALSE, /* partial_inplace */
603 0xffffffff, /* src_mask */
604 0xffffffff, /* dst_mask */
605 FALSE), /* pcrel_offset */
606
607 /* An annotation for linker relaxation, that denotes the
608 symbol+addend whose TLS descriptor is referenced by the sum of
609 the two input registers of an ldd instruction. */
610 HOWTO (R_FRV_TLSDESC_RELAX, /* type */
611 0, /* rightshift */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
613 0, /* bitsize */
614 FALSE, /* pc_relative */
615 0, /* bitpos */
616 complain_overflow_dont, /* complain_on_overflow */
617 bfd_elf_generic_reloc, /* special_function */
618 "R_FRV_TLSDESC_RELAX", /* name */
619 FALSE, /* partial_inplace */
620 0, /* src_mask */
621 0, /* dst_mask */
622 FALSE), /* pcrel_offset */
623
624 /* An annotation for linker relaxation, that denotes the
625 symbol+addend whose TLS resolver entry point is given by the sum
626 of the two register operands of an calll instruction. */
627 HOWTO (R_FRV_GETTLSOFF_RELAX, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 0, /* bitsize */
631 FALSE, /* pc_relative */
632 0, /* bitpos */
633 complain_overflow_dont, /* complain_on_overflow */
634 bfd_elf_generic_reloc, /* special_function */
635 "R_FRV_GETTLSOFF_RELAX", /* name */
636 FALSE, /* partial_inplace */
637 0, /* src_mask */
638 0, /* dst_mask */
639 FALSE), /* pcrel_offset */
640
641 /* An annotation for linker relaxation, that denotes the
642 symbol+addend whose TLS offset GOT entry is given by the sum of
643 the two input registers of an ld instruction. */
644 HOWTO (R_FRV_TLSOFF_RELAX, /* type */
645 0, /* rightshift */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
647 0, /* bitsize */
648 FALSE, /* pc_relative */
649 0, /* bitpos */
650 complain_overflow_bitfield, /* complain_on_overflow */
651 bfd_elf_generic_reloc, /* special_function */
652 "R_FRV_TLSOFF_RELAX", /* name */
653 FALSE, /* partial_inplace */
654 0, /* src_mask */
655 0, /* dst_mask */
656 FALSE), /* pcrel_offset */
657
658 /* A 32-bit offset from the module base address to
659 the thread-local symbol address. */
660 HOWTO (R_FRV_TLSMOFF, /* type */
661 0, /* rightshift */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
663 32, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
667 bfd_elf_generic_reloc, /* special_function */
668 "R_FRV_TLSMOFF", /* name */
669 FALSE, /* partial_inplace */
670 0xffffffff, /* src_mask */
671 0xffffffff, /* dst_mask */
672 FALSE), /* pcrel_offset */
673 };
674
675 /* GNU extension to record C++ vtable hierarchy. */
676 static reloc_howto_type elf32_frv_vtinherit_howto =
677 HOWTO (R_FRV_GNU_VTINHERIT, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 0, /* bitsize */
681 FALSE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_dont, /* complain_on_overflow */
684 NULL, /* special_function */
685 "R_FRV_GNU_VTINHERIT", /* name */
686 FALSE, /* partial_inplace */
687 0, /* src_mask */
688 0, /* dst_mask */
689 FALSE); /* pcrel_offset */
690
691 /* GNU extension to record C++ vtable member usage. */
692 static reloc_howto_type elf32_frv_vtentry_howto =
693 HOWTO (R_FRV_GNU_VTENTRY, /* type */
694 0, /* rightshift */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
696 0, /* bitsize */
697 FALSE, /* pc_relative */
698 0, /* bitpos */
699 complain_overflow_dont, /* complain_on_overflow */
700 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
701 "R_FRV_GNU_VTENTRY", /* name */
702 FALSE, /* partial_inplace */
703 0, /* src_mask */
704 0, /* dst_mask */
705 FALSE); /* pcrel_offset */
706
707 /* The following 3 relocations are REL. The only difference to the
708 entries in the table above are that partial_inplace is TRUE. */
709 static reloc_howto_type elf32_frv_rel_32_howto =
710 HOWTO (R_FRV_32, /* type */
711 0, /* rightshift */
712 2, /* size (0 = byte, 1 = short, 2 = long) */
713 32, /* bitsize */
714 FALSE, /* pc_relative */
715 0, /* bitpos */
716 complain_overflow_bitfield, /* complain_on_overflow */
717 bfd_elf_generic_reloc, /* special_function */
718 "R_FRV_32", /* name */
719 TRUE, /* partial_inplace */
720 0xffffffff, /* src_mask */
721 0xffffffff, /* dst_mask */
722 FALSE); /* pcrel_offset */
723
724 static reloc_howto_type elf32_frv_rel_funcdesc_howto =
725 HOWTO (R_FRV_FUNCDESC, /* type */
726 0, /* rightshift */
727 2, /* size (0 = byte, 1 = short, 2 = long) */
728 32, /* bitsize */
729 FALSE, /* pc_relative */
730 0, /* bitpos */
731 complain_overflow_bitfield, /* complain_on_overflow */
732 bfd_elf_generic_reloc, /* special_function */
733 "R_FRV_FUNCDESC", /* name */
734 TRUE, /* partial_inplace */
735 0xffffffff, /* src_mask */
736 0xffffffff, /* dst_mask */
737 FALSE); /* pcrel_offset */
738
739 static reloc_howto_type elf32_frv_rel_funcdesc_value_howto =
740 HOWTO (R_FRV_FUNCDESC_VALUE, /* type */
741 0, /* rightshift */
742 2, /* size (0 = byte, 1 = short, 2 = long) */
743 64, /* bitsize */
744 FALSE, /* pc_relative */
745 0, /* bitpos */
746 complain_overflow_bitfield, /* complain_on_overflow */
747 bfd_elf_generic_reloc, /* special_function */
748 "R_FRV_FUNCDESC_VALUE", /* name */
749 TRUE, /* partial_inplace */
750 0xffffffff, /* src_mask */
751 0xffffffff, /* dst_mask */
752 FALSE); /* pcrel_offset */
753
754 static reloc_howto_type elf32_frv_rel_tlsdesc_value_howto =
755 /* A 64-bit TLS descriptor for a symbol. The first word resolves to
756 an entry point, and the second resolves to a special argument.
757 If the symbol turns out to be in static TLS, the entry point is a
758 return instruction, and the special argument is the TLS offset
759 for the symbol. If it's in dynamic TLS, the entry point is a TLS
760 offset resolver, and the special argument is a pointer to a data
761 structure allocated by the dynamic loader, containing the GOT
762 address for the offset resolver, the module id, the offset within
763 the module, and anything else the TLS offset resolver might need
764 to determine the TLS offset for the symbol in the running
765 thread. */
766 HOWTO (R_FRV_TLSDESC_VALUE, /* type */
767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 64, /* bitsize */
770 FALSE, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_bitfield, /* complain_on_overflow */
773 bfd_elf_generic_reloc, /* special_function */
774 "R_FRV_TLSDESC_VALUE", /* name */
775 TRUE, /* partial_inplace */
776 0xffffffff, /* src_mask */
777 0xffffffff, /* dst_mask */
778 FALSE); /* pcrel_offset */
779
780 static reloc_howto_type elf32_frv_rel_tlsoff_howto =
781 /* The 32-bit offset from the thread pointer (not the module base
782 address) to a thread-local symbol. */
783 HOWTO (R_FRV_TLSOFF, /* type */
784 0, /* rightshift */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
786 32, /* bitsize */
787 FALSE, /* pc_relative */
788 0, /* bitpos */
789 complain_overflow_bitfield, /* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_FRV_TLSOFF", /* name */
792 TRUE, /* partial_inplace */
793 0xffffffff, /* src_mask */
794 0xffffffff, /* dst_mask */
795 FALSE); /* pcrel_offset */
796
797
798 \f
799 extern const bfd_target frv_elf32_fdpic_vec;
800 #define IS_FDPIC(bfd) ((bfd)->xvec == &frv_elf32_fdpic_vec)
801
802 /* An extension of the elf hash table data structure, containing some
803 additional FRV-specific data. */
804 struct frvfdpic_elf_link_hash_table
805 {
806 struct elf_link_hash_table elf;
807
808 /* A pointer to the .got section. */
809 asection *sgot;
810 /* A pointer to the .rel.got section. */
811 asection *sgotrel;
812 /* A pointer to the .rofixup section. */
813 asection *sgotfixup;
814 /* A pointer to the .plt section. */
815 asection *splt;
816 /* A pointer to the .rel.plt section. */
817 asection *spltrel;
818 /* GOT base offset. */
819 bfd_vma got0;
820 /* Location of the first non-lazy PLT entry, i.e., the number of
821 bytes taken by lazy PLT entries. If locally-bound TLS
822 descriptors require a ret instruction, it will be placed at this
823 offset. */
824 bfd_vma plt0;
825 /* A hash table holding information about which symbols were
826 referenced with which PIC-related relocations. */
827 struct htab *relocs_info;
828 /* Summary reloc information collected by
829 _frvfdpic_count_got_plt_entries. */
830 struct _frvfdpic_dynamic_got_info *g;
831 };
832
833 /* Get the FRV ELF linker hash table from a link_info structure. */
834
835 #define frvfdpic_hash_table(p) \
836 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
837 == FRV_ELF_DATA ? ((struct frvfdpic_elf_link_hash_table *) ((p)->hash)) : NULL)
838
839 #define frvfdpic_got_section(info) \
840 (frvfdpic_hash_table (info)->sgot)
841 #define frvfdpic_gotrel_section(info) \
842 (frvfdpic_hash_table (info)->sgotrel)
843 #define frvfdpic_gotfixup_section(info) \
844 (frvfdpic_hash_table (info)->sgotfixup)
845 #define frvfdpic_plt_section(info) \
846 (frvfdpic_hash_table (info)->splt)
847 #define frvfdpic_pltrel_section(info) \
848 (frvfdpic_hash_table (info)->spltrel)
849 #define frvfdpic_relocs_info(info) \
850 (frvfdpic_hash_table (info)->relocs_info)
851 #define frvfdpic_got_initial_offset(info) \
852 (frvfdpic_hash_table (info)->got0)
853 #define frvfdpic_plt_initial_offset(info) \
854 (frvfdpic_hash_table (info)->plt0)
855 #define frvfdpic_dynamic_got_plt_info(info) \
856 (frvfdpic_hash_table (info)->g)
857
858 /* Currently it's the same, but if some day we have a reason to change
859 it, we'd better be using a different macro.
860
861 FIXME: if there's any TLS PLT entry that uses local-exec or
862 initial-exec models, we could use the ret at the end of any of them
863 instead of adding one more. */
864 #define frvfdpic_plt_tls_ret_offset(info) \
865 (frvfdpic_plt_initial_offset (info))
866
867 /* The name of the dynamic interpreter. This is put in the .interp
868 section. */
869
870 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
871
872 #define DEFAULT_STACK_SIZE 0x20000
873
874 /* This structure is used to collect the number of entries present in
875 each addressable range of the got. */
876 struct _frvfdpic_dynamic_got_info
877 {
878 /* Several bits of information about the current link. */
879 struct bfd_link_info *info;
880 /* Total GOT size needed for GOT entries within the 12-, 16- or 32-bit
881 ranges. */
882 bfd_vma got12, gotlos, gothilo;
883 /* Total GOT size needed for function descriptor entries within the 12-,
884 16- or 32-bit ranges. */
885 bfd_vma fd12, fdlos, fdhilo;
886 /* Total GOT size needed by function descriptor entries referenced
887 in PLT entries, that would be profitable to place in offsets
888 close to the PIC register. */
889 bfd_vma fdplt;
890 /* Total PLT size needed by lazy PLT entries. */
891 bfd_vma lzplt;
892 /* Total GOT size needed for TLS descriptor entries within the 12-,
893 16- or 32-bit ranges. */
894 bfd_vma tlsd12, tlsdlos, tlsdhilo;
895 /* Total GOT size needed by TLS descriptors referenced in PLT
896 entries, that would be profitable to place in offers close to the
897 PIC register. */
898 bfd_vma tlsdplt;
899 /* Total PLT size needed by TLS lazy PLT entries. */
900 bfd_vma tlslzplt;
901 /* Number of relocations carried over from input object files. */
902 unsigned long relocs;
903 /* Number of fixups introduced by relocations in input object files. */
904 unsigned long fixups;
905 /* The number of fixups that reference the ret instruction added to
906 the PLT for locally-resolved TLS descriptors. */
907 unsigned long tls_ret_refs;
908 };
909
910 /* This structure is used to assign offsets to got entries, function
911 descriptors, plt entries and lazy plt entries. */
912
913 struct _frvfdpic_dynamic_got_plt_info
914 {
915 /* Summary information collected with _frvfdpic_count_got_plt_entries. */
916 struct _frvfdpic_dynamic_got_info g;
917
918 /* For each addressable range, we record a MAX (positive) and MIN
919 (negative) value. CUR is used to assign got entries, and it's
920 incremented from an initial positive value to MAX, then from MIN
921 to FDCUR (unless FDCUR wraps around first). FDCUR is used to
922 assign function descriptors, and it's decreased from an initial
923 non-positive value to MIN, then from MAX down to CUR (unless CUR
924 wraps around first). All of MIN, MAX, CUR and FDCUR always point
925 to even words. ODD, if non-zero, indicates an odd word to be
926 used for the next got entry, otherwise CUR is used and
927 incremented by a pair of words, wrapping around when it reaches
928 MAX. FDCUR is decremented (and wrapped) before the next function
929 descriptor is chosen. FDPLT indicates the number of remaining
930 slots that can be used for function descriptors used only by PLT
931 entries.
932
933 TMAX, TMIN and TCUR are used to assign TLS descriptors. TCUR
934 starts as MAX, and grows up to TMAX, then wraps around to TMIN
935 and grows up to MIN. TLSDPLT indicates the number of remaining
936 slots that can be used for TLS descriptors used only by TLS PLT
937 entries. */
938 struct _frvfdpic_dynamic_got_alloc_data
939 {
940 bfd_signed_vma max, cur, odd, fdcur, min;
941 bfd_signed_vma tmax, tcur, tmin;
942 bfd_vma fdplt, tlsdplt;
943 } got12, gotlos, gothilo;
944 };
945
946 /* Create an FRV ELF linker hash table. */
947
948 static struct bfd_link_hash_table *
949 frvfdpic_elf_link_hash_table_create (bfd *abfd)
950 {
951 struct frvfdpic_elf_link_hash_table *ret;
952 bfd_size_type amt = sizeof (struct frvfdpic_elf_link_hash_table);
953
954 ret = bfd_zmalloc (amt);
955 if (ret == NULL)
956 return NULL;
957
958 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
959 _bfd_elf_link_hash_newfunc,
960 sizeof (struct elf_link_hash_entry),
961 FRV_ELF_DATA))
962 {
963 free (ret);
964 return NULL;
965 }
966
967 return &ret->elf.root;
968 }
969
970 /* Decide whether a reference to a symbol can be resolved locally or
971 not. If the symbol is protected, we want the local address, but
972 its function descriptor must be assigned by the dynamic linker. */
973 #define FRVFDPIC_SYM_LOCAL(INFO, H) \
974 (_bfd_elf_symbol_refs_local_p ((H), (INFO), 1) \
975 || ! elf_hash_table (INFO)->dynamic_sections_created)
976 #define FRVFDPIC_FUNCDESC_LOCAL(INFO, H) \
977 ((H)->dynindx == -1 || ! elf_hash_table (INFO)->dynamic_sections_created)
978
979 /* This structure collects information on what kind of GOT, PLT or
980 function descriptors are required by relocations that reference a
981 certain symbol. */
982 struct frvfdpic_relocs_info
983 {
984 /* The index of the symbol, as stored in the relocation r_info, if
985 we have a local symbol; -1 otherwise. */
986 long symndx;
987 union
988 {
989 /* The input bfd in which the symbol is defined, if it's a local
990 symbol. */
991 bfd *abfd;
992 /* If symndx == -1, the hash table entry corresponding to a global
993 symbol (even if it turns out to bind locally, in which case it
994 should ideally be replaced with section's symndx + addend). */
995 struct elf_link_hash_entry *h;
996 } d;
997 /* The addend of the relocation that references the symbol. */
998 bfd_vma addend;
999
1000 /* The fields above are used to identify an entry. The fields below
1001 contain information on how an entry is used and, later on, which
1002 locations it was assigned. */
1003 /* The following 3 fields record whether the symbol+addend above was
1004 ever referenced with a GOT relocation. The 12 suffix indicates a
1005 GOT12 relocation; los is used for GOTLO relocations that are not
1006 matched by a GOTHI relocation; hilo is used for GOTLO/GOTHI
1007 pairs. */
1008 unsigned got12:1;
1009 unsigned gotlos:1;
1010 unsigned gothilo:1;
1011 /* Whether a FUNCDESC relocation references symbol+addend. */
1012 unsigned fd:1;
1013 /* Whether a FUNCDESC_GOT relocation references symbol+addend. */
1014 unsigned fdgot12:1;
1015 unsigned fdgotlos:1;
1016 unsigned fdgothilo:1;
1017 /* Whether a FUNCDESC_GOTOFF relocation references symbol+addend. */
1018 unsigned fdgoff12:1;
1019 unsigned fdgofflos:1;
1020 unsigned fdgoffhilo:1;
1021 /* Whether a GETTLSOFF relocation references symbol+addend. */
1022 unsigned tlsplt:1;
1023 /* FIXME: we should probably add tlspltdesc, tlspltoff and
1024 tlspltimm, to tell what kind of TLS PLT entry we're generating.
1025 We might instead just pre-compute flags telling whether the
1026 object is suitable for local exec, initial exec or general
1027 dynamic addressing, and use that all over the place. We could
1028 also try to do a better job of merging TLSOFF and TLSDESC entries
1029 in main executables, but perhaps we can get rid of TLSDESC
1030 entirely in them instead. */
1031 /* Whether a GOTTLSDESC relocation references symbol+addend. */
1032 unsigned tlsdesc12:1;
1033 unsigned tlsdesclos:1;
1034 unsigned tlsdeschilo:1;
1035 /* Whether a GOTTLSOFF relocation references symbol+addend. */
1036 unsigned tlsoff12:1;
1037 unsigned tlsofflos:1;
1038 unsigned tlsoffhilo:1;
1039 /* Whether symbol+addend is referenced with GOTOFF12, GOTOFFLO or
1040 GOTOFFHI relocations. The addend doesn't really matter, since we
1041 envision that this will only be used to check whether the symbol
1042 is mapped to the same segment as the got. */
1043 unsigned gotoff:1;
1044 /* Whether symbol+addend is referenced by a LABEL24 relocation. */
1045 unsigned call:1;
1046 /* Whether symbol+addend is referenced by a 32 or FUNCDESC_VALUE
1047 relocation. */
1048 unsigned sym:1;
1049 /* Whether we need a PLT entry for a symbol. Should be implied by
1050 something like:
1051 (call && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)) */
1052 unsigned plt:1;
1053 /* Whether a function descriptor should be created in this link unit
1054 for symbol+addend. Should be implied by something like:
1055 (plt || fdgotoff12 || fdgotofflos || fdgotofflohi
1056 || ((fd || fdgot12 || fdgotlos || fdgothilo)
1057 && (symndx != -1 || FRVFDPIC_FUNCDESC_LOCAL (info, d.h)))) */
1058 unsigned privfd:1;
1059 /* Whether a lazy PLT entry is needed for this symbol+addend.
1060 Should be implied by something like:
1061 (privfd && symndx == -1 && ! FRVFDPIC_SYM_LOCAL (info, d.h)
1062 && ! (info->flags & DF_BIND_NOW)) */
1063 unsigned lazyplt:1;
1064 /* Whether we've already emitted GOT relocations and PLT entries as
1065 needed for this symbol. */
1066 unsigned done:1;
1067
1068 /* The number of R_FRV_32, R_FRV_FUNCDESC, R_FRV_FUNCDESC_VALUE and
1069 R_FRV_TLSDESC_VALUE, R_FRV_TLSOFF relocations referencing
1070 symbol+addend. */
1071 unsigned relocs32, relocsfd, relocsfdv, relocstlsd, relocstlsoff;
1072
1073 /* The number of .rofixups entries and dynamic relocations allocated
1074 for this symbol, minus any that might have already been used. */
1075 unsigned fixups, dynrelocs;
1076
1077 /* The offsets of the GOT entries assigned to symbol+addend, to the
1078 function descriptor's address, and to a function descriptor,
1079 respectively. Should be zero if unassigned. The offsets are
1080 counted from the value that will be assigned to the PIC register,
1081 not from the beginning of the .got section. */
1082 bfd_signed_vma got_entry, fdgot_entry, fd_entry;
1083 /* The offsets of the PLT entries assigned to symbol+addend,
1084 non-lazy and lazy, respectively. If unassigned, should be
1085 (bfd_vma)-1. */
1086 bfd_vma plt_entry, lzplt_entry;
1087 /* The offsets of the GOT entries for TLS offset and TLS descriptor. */
1088 bfd_signed_vma tlsoff_entry, tlsdesc_entry;
1089 /* The offset of the TLS offset PLT entry. */
1090 bfd_vma tlsplt_entry;
1091 };
1092
1093 /* Compute a hash with the key fields of an frvfdpic_relocs_info entry. */
1094 static hashval_t
1095 frvfdpic_relocs_info_hash (const void *entry_)
1096 {
1097 const struct frvfdpic_relocs_info *entry = entry_;
1098
1099 return (entry->symndx == -1
1100 ? (long) entry->d.h->root.root.hash
1101 : entry->symndx + (long) entry->d.abfd->id * 257) + entry->addend;
1102 }
1103
1104 /* Test whether the key fields of two frvfdpic_relocs_info entries are
1105 identical. */
1106 static int
1107 frvfdpic_relocs_info_eq (const void *entry1, const void *entry2)
1108 {
1109 const struct frvfdpic_relocs_info *e1 = entry1;
1110 const struct frvfdpic_relocs_info *e2 = entry2;
1111
1112 return e1->symndx == e2->symndx && e1->addend == e2->addend
1113 && (e1->symndx == -1 ? e1->d.h == e2->d.h : e1->d.abfd == e2->d.abfd);
1114 }
1115
1116 /* Find or create an entry in a hash table HT that matches the key
1117 fields of the given ENTRY. If it's not found, memory for a new
1118 entry is allocated in ABFD's obstack. */
1119 static struct frvfdpic_relocs_info *
1120 frvfdpic_relocs_info_find (struct htab *ht,
1121 bfd *abfd,
1122 const struct frvfdpic_relocs_info *entry,
1123 enum insert_option insert)
1124 {
1125 struct frvfdpic_relocs_info **loc =
1126 (struct frvfdpic_relocs_info **) htab_find_slot (ht, entry, insert);
1127
1128 if (! loc)
1129 return NULL;
1130
1131 if (*loc)
1132 return *loc;
1133
1134 *loc = bfd_zalloc (abfd, sizeof (**loc));
1135
1136 if (! *loc)
1137 return *loc;
1138
1139 (*loc)->symndx = entry->symndx;
1140 (*loc)->d = entry->d;
1141 (*loc)->addend = entry->addend;
1142 (*loc)->plt_entry = (bfd_vma)-1;
1143 (*loc)->lzplt_entry = (bfd_vma)-1;
1144 (*loc)->tlsplt_entry = (bfd_vma)-1;
1145
1146 return *loc;
1147 }
1148
1149 /* Obtain the address of the entry in HT associated with H's symbol +
1150 addend, creating a new entry if none existed. ABFD is only used
1151 for memory allocation purposes. */
1152 inline static struct frvfdpic_relocs_info *
1153 frvfdpic_relocs_info_for_global (struct htab *ht,
1154 bfd *abfd,
1155 struct elf_link_hash_entry *h,
1156 bfd_vma addend,
1157 enum insert_option insert)
1158 {
1159 struct frvfdpic_relocs_info entry;
1160
1161 entry.symndx = -1;
1162 entry.d.h = h;
1163 entry.addend = addend;
1164
1165 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1166 }
1167
1168 /* Obtain the address of the entry in HT associated with the SYMNDXth
1169 local symbol of the input bfd ABFD, plus the addend, creating a new
1170 entry if none existed. */
1171 inline static struct frvfdpic_relocs_info *
1172 frvfdpic_relocs_info_for_local (struct htab *ht,
1173 bfd *abfd,
1174 long symndx,
1175 bfd_vma addend,
1176 enum insert_option insert)
1177 {
1178 struct frvfdpic_relocs_info entry;
1179
1180 entry.symndx = symndx;
1181 entry.d.abfd = abfd;
1182 entry.addend = addend;
1183
1184 return frvfdpic_relocs_info_find (ht, abfd, &entry, insert);
1185 }
1186
1187 /* Merge fields set by check_relocs() of two entries that end up being
1188 mapped to the same (presumably global) symbol. */
1189
1190 inline static void
1191 frvfdpic_pic_merge_early_relocs_info (struct frvfdpic_relocs_info *e2,
1192 struct frvfdpic_relocs_info const *e1)
1193 {
1194 e2->got12 |= e1->got12;
1195 e2->gotlos |= e1->gotlos;
1196 e2->gothilo |= e1->gothilo;
1197 e2->fd |= e1->fd;
1198 e2->fdgot12 |= e1->fdgot12;
1199 e2->fdgotlos |= e1->fdgotlos;
1200 e2->fdgothilo |= e1->fdgothilo;
1201 e2->fdgoff12 |= e1->fdgoff12;
1202 e2->fdgofflos |= e1->fdgofflos;
1203 e2->fdgoffhilo |= e1->fdgoffhilo;
1204 e2->tlsplt |= e1->tlsplt;
1205 e2->tlsdesc12 |= e1->tlsdesc12;
1206 e2->tlsdesclos |= e1->tlsdesclos;
1207 e2->tlsdeschilo |= e1->tlsdeschilo;
1208 e2->tlsoff12 |= e1->tlsoff12;
1209 e2->tlsofflos |= e1->tlsofflos;
1210 e2->tlsoffhilo |= e1->tlsoffhilo;
1211 e2->gotoff |= e1->gotoff;
1212 e2->call |= e1->call;
1213 e2->sym |= e1->sym;
1214 }
1215
1216 /* Every block of 65535 lazy PLT entries shares a single call to the
1217 resolver, inserted in the 32768th lazy PLT entry (i.e., entry #
1218 32767, counting from 0). All other lazy PLT entries branch to it
1219 in a single instruction. */
1220
1221 #define FRVFDPIC_LZPLT_BLOCK_SIZE ((bfd_vma) 8 * 65535 + 4)
1222 #define FRVFDPIC_LZPLT_RESOLV_LOC (8 * 32767)
1223
1224 /* Add a dynamic relocation to the SRELOC section. */
1225
1226 inline static bfd_vma
1227 _frvfdpic_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset,
1228 int reloc_type, long dynindx, bfd_vma addend,
1229 struct frvfdpic_relocs_info *entry)
1230 {
1231 Elf_Internal_Rela outrel;
1232 bfd_vma reloc_offset;
1233
1234 outrel.r_offset = offset;
1235 outrel.r_info = ELF32_R_INFO (dynindx, reloc_type);
1236 outrel.r_addend = addend;
1237
1238 reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rel);
1239 BFD_ASSERT (reloc_offset < sreloc->size);
1240 bfd_elf32_swap_reloc_out (output_bfd, &outrel,
1241 sreloc->contents + reloc_offset);
1242 sreloc->reloc_count++;
1243
1244 /* If the entry's index is zero, this relocation was probably to a
1245 linkonce section that got discarded. We reserved a dynamic
1246 relocation, but it was for another entry than the one we got at
1247 the time of emitting the relocation. Unfortunately there's no
1248 simple way for us to catch this situation, since the relocation
1249 is cleared right before calling relocate_section, at which point
1250 we no longer know what the relocation used to point to. */
1251 if (entry->symndx)
1252 {
1253 BFD_ASSERT (entry->dynrelocs > 0);
1254 entry->dynrelocs--;
1255 }
1256
1257 return reloc_offset;
1258 }
1259
1260 /* Add a fixup to the ROFIXUP section. */
1261
1262 static bfd_vma
1263 _frvfdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma offset,
1264 struct frvfdpic_relocs_info *entry)
1265 {
1266 bfd_vma fixup_offset;
1267
1268 if (rofixup->flags & SEC_EXCLUDE)
1269 return -1;
1270
1271 fixup_offset = rofixup->reloc_count * 4;
1272 if (rofixup->contents)
1273 {
1274 BFD_ASSERT (fixup_offset < rofixup->size);
1275 bfd_put_32 (output_bfd, offset, rofixup->contents + fixup_offset);
1276 }
1277 rofixup->reloc_count++;
1278
1279 if (entry && entry->symndx)
1280 {
1281 /* See discussion about symndx == 0 in _frvfdpic_add_dyn_reloc
1282 above. */
1283 BFD_ASSERT (entry->fixups > 0);
1284 entry->fixups--;
1285 }
1286
1287 return fixup_offset;
1288 }
1289
1290 /* Find the segment number in which OSEC, and output section, is
1291 located. */
1292
1293 static unsigned
1294 _frvfdpic_osec_to_segment (bfd *output_bfd, asection *osec)
1295 {
1296 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section (output_bfd, osec);
1297
1298 return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1;
1299 }
1300
1301 inline static bfd_boolean
1302 _frvfdpic_osec_readonly_p (bfd *output_bfd, asection *osec)
1303 {
1304 unsigned seg = _frvfdpic_osec_to_segment (output_bfd, osec);
1305
1306 return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W);
1307 }
1308
1309 #define FRVFDPIC_TLS_BIAS (2048 - 16)
1310
1311 /* Return the base VMA address which should be subtracted from real addresses
1312 when resolving TLSMOFF relocation.
1313 This is PT_TLS segment p_vaddr, plus the 2048-16 bias. */
1314
1315 static bfd_vma
1316 tls_biased_base (struct bfd_link_info *info)
1317 {
1318 /* If tls_sec is NULL, we should have signalled an error already. */
1319 if (elf_hash_table (info)->tls_sec == NULL)
1320 return FRVFDPIC_TLS_BIAS;
1321 return elf_hash_table (info)->tls_sec->vma + FRVFDPIC_TLS_BIAS;
1322 }
1323
1324 /* Generate relocations for GOT entries, function descriptors, and
1325 code for PLT and lazy PLT entries. */
1326
1327 inline static bfd_boolean
1328 _frvfdpic_emit_got_relocs_plt_entries (struct frvfdpic_relocs_info *entry,
1329 bfd *output_bfd,
1330 struct bfd_link_info *info,
1331 asection *sec,
1332 Elf_Internal_Sym *sym,
1333 bfd_vma addend)
1334
1335 {
1336 bfd_vma fd_lazy_rel_offset = (bfd_vma)-1;
1337 int dynindx = -1;
1338
1339 if (entry->done)
1340 return TRUE;
1341 entry->done = 1;
1342
1343 if (entry->got_entry || entry->fdgot_entry || entry->fd_entry
1344 || entry->tlsoff_entry || entry->tlsdesc_entry)
1345 {
1346 /* If the symbol is dynamic, consider it for dynamic
1347 relocations, otherwise decay to section + offset. */
1348 if (entry->symndx == -1 && entry->d.h->dynindx != -1)
1349 dynindx = entry->d.h->dynindx;
1350 else
1351 {
1352 if (sec
1353 && sec->output_section
1354 && ! bfd_is_abs_section (sec->output_section)
1355 && ! bfd_is_und_section (sec->output_section))
1356 dynindx = elf_section_data (sec->output_section)->dynindx;
1357 else
1358 dynindx = 0;
1359 }
1360 }
1361
1362 /* Generate relocation for GOT entry pointing to the symbol. */
1363 if (entry->got_entry)
1364 {
1365 int idx = dynindx;
1366 bfd_vma ad = addend;
1367
1368 /* If the symbol is dynamic but binds locally, use
1369 section+offset. */
1370 if (sec && (entry->symndx != -1
1371 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1372 {
1373 if (entry->symndx == -1)
1374 ad += entry->d.h->root.u.def.value;
1375 else
1376 ad += sym->st_value;
1377 ad += sec->output_offset;
1378 if (sec->output_section && elf_section_data (sec->output_section))
1379 idx = elf_section_data (sec->output_section)->dynindx;
1380 else
1381 idx = 0;
1382 }
1383
1384 /* If we're linking an executable at a fixed address, we can
1385 omit the dynamic relocation as long as the symbol is local to
1386 this module. */
1387 if (bfd_link_pde (info)
1388 && (entry->symndx != -1
1389 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1390 {
1391 if (sec)
1392 ad += sec->output_section->vma;
1393 if (entry->symndx != -1
1394 || entry->d.h->root.type != bfd_link_hash_undefweak)
1395 _frvfdpic_add_rofixup (output_bfd,
1396 frvfdpic_gotfixup_section (info),
1397 frvfdpic_got_section (info)->output_section
1398 ->vma
1399 + frvfdpic_got_section (info)->output_offset
1400 + frvfdpic_got_initial_offset (info)
1401 + entry->got_entry, entry);
1402 }
1403 else
1404 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1405 _bfd_elf_section_offset
1406 (output_bfd, info,
1407 frvfdpic_got_section (info),
1408 frvfdpic_got_initial_offset (info)
1409 + entry->got_entry)
1410 + frvfdpic_got_section (info)
1411 ->output_section->vma
1412 + frvfdpic_got_section (info)->output_offset,
1413 R_FRV_32, idx, ad, entry);
1414
1415 bfd_put_32 (output_bfd, ad,
1416 frvfdpic_got_section (info)->contents
1417 + frvfdpic_got_initial_offset (info)
1418 + entry->got_entry);
1419 }
1420
1421 /* Generate relocation for GOT entry pointing to a canonical
1422 function descriptor. */
1423 if (entry->fdgot_entry)
1424 {
1425 int reloc, idx;
1426 bfd_vma ad = 0;
1427
1428 if (! (entry->symndx == -1
1429 && entry->d.h->root.type == bfd_link_hash_undefweak
1430 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1431 {
1432 /* If the symbol is dynamic and there may be dynamic symbol
1433 resolution because we are, or are linked with, a shared
1434 library, emit a FUNCDESC relocation such that the dynamic
1435 linker will allocate the function descriptor. If the
1436 symbol needs a non-local function descriptor but binds
1437 locally (e.g., its visibility is protected, emit a
1438 dynamic relocation decayed to section+offset. */
1439 if (entry->symndx == -1
1440 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)
1441 && FRVFDPIC_SYM_LOCAL (info, entry->d.h)
1442 && !bfd_link_pde (info))
1443 {
1444 reloc = R_FRV_FUNCDESC;
1445 idx = elf_section_data (entry->d.h->root.u.def.section
1446 ->output_section)->dynindx;
1447 ad = entry->d.h->root.u.def.section->output_offset
1448 + entry->d.h->root.u.def.value;
1449 }
1450 else if (entry->symndx == -1
1451 && ! FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h))
1452 {
1453 reloc = R_FRV_FUNCDESC;
1454 idx = dynindx;
1455 ad = addend;
1456 if (ad)
1457 {
1458 (*info->callbacks->reloc_dangerous)
1459 (info, _("relocation requires zero addend"),
1460 elf_hash_table (info)->dynobj,
1461 frvfdpic_got_section (info),
1462 entry->fdgot_entry);
1463 return FALSE;
1464 }
1465 }
1466 else
1467 {
1468 /* Otherwise, we know we have a private function descriptor,
1469 so reference it directly. */
1470 if (elf_hash_table (info)->dynamic_sections_created)
1471 BFD_ASSERT (entry->privfd);
1472 reloc = R_FRV_32;
1473 idx = elf_section_data (frvfdpic_got_section (info)
1474 ->output_section)->dynindx;
1475 ad = frvfdpic_got_section (info)->output_offset
1476 + frvfdpic_got_initial_offset (info) + entry->fd_entry;
1477 }
1478
1479 /* If there is room for dynamic symbol resolution, emit the
1480 dynamic relocation. However, if we're linking an
1481 executable at a fixed location, we won't have emitted a
1482 dynamic symbol entry for the got section, so idx will be
1483 zero, which means we can and should compute the address
1484 of the private descriptor ourselves. */
1485 if (bfd_link_pde (info)
1486 && (entry->symndx != -1
1487 || FRVFDPIC_FUNCDESC_LOCAL (info, entry->d.h)))
1488 {
1489 ad += frvfdpic_got_section (info)->output_section->vma;
1490 _frvfdpic_add_rofixup (output_bfd,
1491 frvfdpic_gotfixup_section (info),
1492 frvfdpic_got_section (info)
1493 ->output_section->vma
1494 + frvfdpic_got_section (info)
1495 ->output_offset
1496 + frvfdpic_got_initial_offset (info)
1497 + entry->fdgot_entry, entry);
1498 }
1499 else
1500 _frvfdpic_add_dyn_reloc (output_bfd,
1501 frvfdpic_gotrel_section (info),
1502 _bfd_elf_section_offset
1503 (output_bfd, info,
1504 frvfdpic_got_section (info),
1505 frvfdpic_got_initial_offset (info)
1506 + entry->fdgot_entry)
1507 + frvfdpic_got_section (info)
1508 ->output_section->vma
1509 + frvfdpic_got_section (info)
1510 ->output_offset,
1511 reloc, idx, ad, entry);
1512 }
1513
1514 bfd_put_32 (output_bfd, ad,
1515 frvfdpic_got_section (info)->contents
1516 + frvfdpic_got_initial_offset (info)
1517 + entry->fdgot_entry);
1518 }
1519
1520 /* Generate relocation to fill in a private function descriptor in
1521 the GOT. */
1522 if (entry->fd_entry)
1523 {
1524 int idx = dynindx;
1525 bfd_vma ad = addend;
1526 bfd_vma ofst;
1527 long lowword, highword;
1528
1529 /* If the symbol is dynamic but binds locally, use
1530 section+offset. */
1531 if (sec && (entry->symndx != -1
1532 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1533 {
1534 if (entry->symndx == -1)
1535 ad += entry->d.h->root.u.def.value;
1536 else
1537 ad += sym->st_value;
1538 ad += sec->output_offset;
1539 if (sec->output_section && elf_section_data (sec->output_section))
1540 idx = elf_section_data (sec->output_section)->dynindx;
1541 else
1542 idx = 0;
1543 }
1544
1545 /* If we're linking an executable at a fixed address, we can
1546 omit the dynamic relocation as long as the symbol is local to
1547 this module. */
1548 if (bfd_link_pde (info)
1549 && (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1550 {
1551 if (sec)
1552 ad += sec->output_section->vma;
1553 ofst = 0;
1554 if (entry->symndx != -1
1555 || entry->d.h->root.type != bfd_link_hash_undefweak)
1556 {
1557 _frvfdpic_add_rofixup (output_bfd,
1558 frvfdpic_gotfixup_section (info),
1559 frvfdpic_got_section (info)
1560 ->output_section->vma
1561 + frvfdpic_got_section (info)
1562 ->output_offset
1563 + frvfdpic_got_initial_offset (info)
1564 + entry->fd_entry, entry);
1565 _frvfdpic_add_rofixup (output_bfd,
1566 frvfdpic_gotfixup_section (info),
1567 frvfdpic_got_section (info)
1568 ->output_section->vma
1569 + frvfdpic_got_section (info)
1570 ->output_offset
1571 + frvfdpic_got_initial_offset (info)
1572 + entry->fd_entry + 4, entry);
1573 }
1574 }
1575 else
1576 {
1577 ofst =
1578 _frvfdpic_add_dyn_reloc (output_bfd,
1579 entry->lazyplt
1580 ? frvfdpic_pltrel_section (info)
1581 : frvfdpic_gotrel_section (info),
1582 _bfd_elf_section_offset
1583 (output_bfd, info,
1584 frvfdpic_got_section (info),
1585 frvfdpic_got_initial_offset (info)
1586 + entry->fd_entry)
1587 + frvfdpic_got_section (info)
1588 ->output_section->vma
1589 + frvfdpic_got_section (info)
1590 ->output_offset,
1591 R_FRV_FUNCDESC_VALUE, idx, ad, entry);
1592 }
1593
1594 /* If we've omitted the dynamic relocation, just emit the fixed
1595 addresses of the symbol and of the local GOT base offset. */
1596 if (bfd_link_pde (info)
1597 && sec
1598 && sec->output_section)
1599 {
1600 lowword = ad;
1601 highword = frvfdpic_got_section (info)->output_section->vma
1602 + frvfdpic_got_section (info)->output_offset
1603 + frvfdpic_got_initial_offset (info);
1604 }
1605 else if (entry->lazyplt)
1606 {
1607 if (ad)
1608 {
1609 (*info->callbacks->reloc_dangerous)
1610 (info, _("relocation requires zero addend"),
1611 elf_hash_table (info)->dynobj,
1612 frvfdpic_got_section (info),
1613 entry->fd_entry);
1614 return FALSE;
1615 }
1616
1617 fd_lazy_rel_offset = ofst;
1618
1619 /* A function descriptor used for lazy or local resolving is
1620 initialized such that its high word contains the output
1621 section index in which the PLT entries are located, and
1622 the low word contains the address of the lazy PLT entry
1623 entry point, that must be within the memory region
1624 assigned to that section. */
1625 lowword = entry->lzplt_entry + 4
1626 + frvfdpic_plt_section (info)->output_offset
1627 + frvfdpic_plt_section (info)->output_section->vma;
1628 highword = _frvfdpic_osec_to_segment
1629 (output_bfd, frvfdpic_plt_section (info)->output_section);
1630 }
1631 else
1632 {
1633 /* A function descriptor for a local function gets the index
1634 of the section. For a non-local function, it's
1635 disregarded. */
1636 lowword = ad;
1637 if (sec == NULL
1638 || (entry->symndx == -1 && entry->d.h->dynindx != -1
1639 && entry->d.h->dynindx == idx))
1640 highword = 0;
1641 else
1642 highword = _frvfdpic_osec_to_segment
1643 (output_bfd, sec->output_section);
1644 }
1645
1646 bfd_put_32 (output_bfd, lowword,
1647 frvfdpic_got_section (info)->contents
1648 + frvfdpic_got_initial_offset (info)
1649 + entry->fd_entry);
1650 bfd_put_32 (output_bfd, highword,
1651 frvfdpic_got_section (info)->contents
1652 + frvfdpic_got_initial_offset (info)
1653 + entry->fd_entry + 4);
1654 }
1655
1656 /* Generate code for the PLT entry. */
1657 if (entry->plt_entry != (bfd_vma) -1)
1658 {
1659 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1660 + entry->plt_entry;
1661
1662 BFD_ASSERT (entry->fd_entry);
1663
1664 /* Figure out what kind of PLT entry we need, depending on the
1665 location of the function descriptor within the GOT. */
1666 if (entry->fd_entry >= -(1 << (12 - 1))
1667 && entry->fd_entry < (1 << (12 - 1)))
1668 {
1669 /* lddi @(gr15, fd_entry), gr14 */
1670 bfd_put_32 (output_bfd,
1671 0x9cccf000 | (entry->fd_entry & ((1 << 12) - 1)),
1672 plt_code);
1673 plt_code += 4;
1674 }
1675 else
1676 {
1677 if (entry->fd_entry >= -(1 << (16 - 1))
1678 && entry->fd_entry < (1 << (16 - 1)))
1679 {
1680 /* setlos lo(fd_entry), gr14 */
1681 bfd_put_32 (output_bfd,
1682 0x9cfc0000
1683 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1684 plt_code);
1685 plt_code += 4;
1686 }
1687 else
1688 {
1689 /* sethi.p hi(fd_entry), gr14
1690 setlo lo(fd_entry), gr14 */
1691 bfd_put_32 (output_bfd,
1692 0x1cf80000
1693 | ((entry->fd_entry >> 16)
1694 & (((bfd_vma)1 << 16) - 1)),
1695 plt_code);
1696 plt_code += 4;
1697 bfd_put_32 (output_bfd,
1698 0x9cf40000
1699 | (entry->fd_entry & (((bfd_vma)1 << 16) - 1)),
1700 plt_code);
1701 plt_code += 4;
1702 }
1703 /* ldd @(gr14,gr15),gr14 */
1704 bfd_put_32 (output_bfd, 0x9c08e14f, plt_code);
1705 plt_code += 4;
1706 }
1707 /* jmpl @(gr14,gr0) */
1708 bfd_put_32 (output_bfd, 0x8030e000, plt_code);
1709 }
1710
1711 /* Generate code for the lazy PLT entry. */
1712 if (entry->lzplt_entry != (bfd_vma) -1)
1713 {
1714 bfd_byte *lzplt_code = frvfdpic_plt_section (info)->contents
1715 + entry->lzplt_entry;
1716 bfd_vma resolverStub_addr;
1717
1718 bfd_put_32 (output_bfd, fd_lazy_rel_offset, lzplt_code);
1719 lzplt_code += 4;
1720
1721 resolverStub_addr = entry->lzplt_entry / FRVFDPIC_LZPLT_BLOCK_SIZE
1722 * FRVFDPIC_LZPLT_BLOCK_SIZE + FRVFDPIC_LZPLT_RESOLV_LOC;
1723 if (resolverStub_addr >= frvfdpic_plt_initial_offset (info))
1724 resolverStub_addr = frvfdpic_plt_initial_offset (info) - 12;
1725
1726 if (entry->lzplt_entry == resolverStub_addr)
1727 {
1728 /* This is a lazy PLT entry that includes a resolver call. */
1729 /* ldd @(gr15,gr0), gr4
1730 jmpl @(gr4,gr0) */
1731 bfd_put_32 (output_bfd, 0x8808f140, lzplt_code);
1732 bfd_put_32 (output_bfd, 0x80304000, lzplt_code + 4);
1733 }
1734 else
1735 {
1736 /* bra resolverStub */
1737 bfd_put_32 (output_bfd,
1738 0xc01a0000
1739 | (((resolverStub_addr - entry->lzplt_entry)
1740 / 4) & (((bfd_vma)1 << 16) - 1)),
1741 lzplt_code);
1742 }
1743 }
1744
1745 /* Generate relocation for GOT entry holding the TLS offset. */
1746 if (entry->tlsoff_entry)
1747 {
1748 int idx = dynindx;
1749 bfd_vma ad = addend;
1750
1751 if (entry->symndx != -1
1752 || FRVFDPIC_SYM_LOCAL (info, entry->d.h))
1753 {
1754 /* If the symbol is dynamic but binds locally, use
1755 section+offset. */
1756 if (sec)
1757 {
1758 if (entry->symndx == -1)
1759 ad += entry->d.h->root.u.def.value;
1760 else
1761 ad += sym->st_value;
1762 ad += sec->output_offset;
1763 if (sec->output_section
1764 && elf_section_data (sec->output_section))
1765 idx = elf_section_data (sec->output_section)->dynindx;
1766 else
1767 idx = 0;
1768 }
1769 }
1770
1771 /* *ABS*+addend is special for TLS relocations, use only the
1772 addend. */
1773 if (bfd_link_executable (info)
1774 && idx == 0
1775 && (bfd_is_abs_section (sec)
1776 || bfd_is_und_section (sec)))
1777 ;
1778 /* If we're linking an executable, we can entirely omit the
1779 dynamic relocation if the symbol is local to this module. */
1780 else if (bfd_link_executable (info)
1781 && (entry->symndx != -1
1782 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1783 {
1784 if (sec)
1785 ad += sec->output_section->vma - tls_biased_base (info);
1786 }
1787 else
1788 {
1789 if (idx == 0
1790 && (bfd_is_abs_section (sec)
1791 || bfd_is_und_section (sec)))
1792 {
1793 if (! elf_hash_table (info)->tls_sec)
1794 {
1795 (*info->callbacks->undefined_symbol)
1796 (info, "TLS section", elf_hash_table (info)->dynobj,
1797 frvfdpic_got_section (info), entry->tlsoff_entry, TRUE);
1798 return FALSE;
1799 }
1800 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1801 ad += FRVFDPIC_TLS_BIAS;
1802 }
1803 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1804 _bfd_elf_section_offset
1805 (output_bfd, info,
1806 frvfdpic_got_section (info),
1807 frvfdpic_got_initial_offset (info)
1808 + entry->tlsoff_entry)
1809 + frvfdpic_got_section (info)
1810 ->output_section->vma
1811 + frvfdpic_got_section (info)
1812 ->output_offset,
1813 R_FRV_TLSOFF, idx, ad, entry);
1814 }
1815
1816 bfd_put_32 (output_bfd, ad,
1817 frvfdpic_got_section (info)->contents
1818 + frvfdpic_got_initial_offset (info)
1819 + entry->tlsoff_entry);
1820 }
1821
1822 if (entry->tlsdesc_entry)
1823 {
1824 int idx = dynindx;
1825 bfd_vma ad = addend;
1826
1827 /* If the symbol is dynamic but binds locally, use
1828 section+offset. */
1829 if (sec && (entry->symndx != -1
1830 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1831 {
1832 if (entry->symndx == -1)
1833 ad += entry->d.h->root.u.def.value;
1834 else
1835 ad += sym->st_value;
1836 ad += sec->output_offset;
1837 if (sec->output_section && elf_section_data (sec->output_section))
1838 idx = elf_section_data (sec->output_section)->dynindx;
1839 else
1840 idx = 0;
1841 }
1842
1843 /* If we didn't set up a TLS offset entry, but we're linking an
1844 executable and the symbol binds locally, we can use the
1845 module offset in the TLS descriptor in relaxations. */
1846 if (bfd_link_executable (info) && ! entry->tlsoff_entry)
1847 entry->tlsoff_entry = entry->tlsdesc_entry + 4;
1848
1849 if (bfd_link_pde (info)
1850 && ((idx == 0
1851 && (bfd_is_abs_section (sec)
1852 || bfd_is_und_section (sec)))
1853 || entry->symndx != -1
1854 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1855 {
1856 /* *ABS*+addend is special for TLS relocations, use only the
1857 addend for the TLS offset, and take the module id as
1858 0. */
1859 if (idx == 0
1860 && (bfd_is_abs_section (sec)
1861 || bfd_is_und_section (sec)))
1862 ;
1863 /* For other TLS symbols that bind locally, add the section
1864 TLS offset to the addend. */
1865 else if (sec)
1866 ad += sec->output_section->vma - tls_biased_base (info);
1867
1868 bfd_put_32 (output_bfd,
1869 frvfdpic_plt_section (info)->output_section->vma
1870 + frvfdpic_plt_section (info)->output_offset
1871 + frvfdpic_plt_tls_ret_offset (info),
1872 frvfdpic_got_section (info)->contents
1873 + frvfdpic_got_initial_offset (info)
1874 + entry->tlsdesc_entry);
1875
1876 _frvfdpic_add_rofixup (output_bfd,
1877 frvfdpic_gotfixup_section (info),
1878 frvfdpic_got_section (info)
1879 ->output_section->vma
1880 + frvfdpic_got_section (info)
1881 ->output_offset
1882 + frvfdpic_got_initial_offset (info)
1883 + entry->tlsdesc_entry, entry);
1884
1885 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs);
1886
1887 /* We've used one of the reserved fixups, so discount it so
1888 that we can check at the end that we've used them
1889 all. */
1890 frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs--;
1891
1892 /* While at that, make sure the ret instruction makes to the
1893 right location in the PLT. We could do it only when we
1894 got to 0, but since the check at the end will only print
1895 a warning, make sure we have the ret in place in case the
1896 warning is missed. */
1897 bfd_put_32 (output_bfd, 0xc03a4000,
1898 frvfdpic_plt_section (info)->contents
1899 + frvfdpic_plt_tls_ret_offset (info));
1900 }
1901 else
1902 {
1903 if (idx == 0
1904 && (bfd_is_abs_section (sec)
1905 || bfd_is_und_section (sec)))
1906 {
1907 if (! elf_hash_table (info)->tls_sec)
1908 {
1909 (*info->callbacks->undefined_symbol)
1910 (info, "TLS section", elf_hash_table (info)->dynobj,
1911 frvfdpic_got_section (info), entry->tlsdesc_entry, TRUE);
1912 return FALSE;
1913 }
1914 idx = elf_section_data (elf_hash_table (info)->tls_sec)->dynindx;
1915 ad += FRVFDPIC_TLS_BIAS;
1916 }
1917
1918 _frvfdpic_add_dyn_reloc (output_bfd, frvfdpic_gotrel_section (info),
1919 _bfd_elf_section_offset
1920 (output_bfd, info,
1921 frvfdpic_got_section (info),
1922 frvfdpic_got_initial_offset (info)
1923 + entry->tlsdesc_entry)
1924 + frvfdpic_got_section (info)
1925 ->output_section->vma
1926 + frvfdpic_got_section (info)
1927 ->output_offset,
1928 R_FRV_TLSDESC_VALUE, idx, ad, entry);
1929
1930 bfd_put_32 (output_bfd, 0,
1931 frvfdpic_got_section (info)->contents
1932 + frvfdpic_got_initial_offset (info)
1933 + entry->tlsdesc_entry);
1934 }
1935
1936 bfd_put_32 (output_bfd, ad,
1937 frvfdpic_got_section (info)->contents
1938 + frvfdpic_got_initial_offset (info)
1939 + entry->tlsdesc_entry + 4);
1940 }
1941
1942 /* Generate code for the get-TLS-offset PLT entry. */
1943 if (entry->tlsplt_entry != (bfd_vma) -1)
1944 {
1945 bfd_byte *plt_code = frvfdpic_plt_section (info)->contents
1946 + entry->tlsplt_entry;
1947
1948 if (bfd_link_executable (info)
1949 && (entry->symndx != -1
1950 || FRVFDPIC_SYM_LOCAL (info, entry->d.h)))
1951 {
1952 int idx = dynindx;
1953 bfd_vma ad = addend;
1954
1955 /* sec may be NULL when referencing an undefweak symbol
1956 while linking a static executable. */
1957 if (!sec)
1958 {
1959 BFD_ASSERT (entry->symndx == -1
1960 && entry->d.h->root.type == bfd_link_hash_undefweak);
1961 }
1962 else
1963 {
1964 if (entry->symndx == -1)
1965 ad += entry->d.h->root.u.def.value;
1966 else
1967 ad += sym->st_value;
1968 ad += sec->output_offset;
1969 if (sec->output_section
1970 && elf_section_data (sec->output_section))
1971 idx = elf_section_data (sec->output_section)->dynindx;
1972 else
1973 idx = 0;
1974 }
1975
1976 /* *ABS*+addend is special for TLS relocations, use only the
1977 addend for the TLS offset, and take the module id as
1978 0. */
1979 if (idx == 0
1980 && (bfd_is_abs_section (sec)
1981 || bfd_is_und_section (sec)))
1982 ;
1983 /* For other TLS symbols that bind locally, add the section
1984 TLS offset to the addend. */
1985 else if (sec)
1986 ad += sec->output_section->vma - tls_biased_base (info);
1987
1988 if ((bfd_signed_vma)ad >= -(1 << (16 - 1))
1989 && (bfd_signed_vma)ad < (1 << (16 - 1)))
1990 {
1991 /* setlos lo(ad), gr9 */
1992 bfd_put_32 (output_bfd,
1993 0x92fc0000
1994 | (ad
1995 & (((bfd_vma)1 << 16) - 1)),
1996 plt_code);
1997 plt_code += 4;
1998 }
1999 else
2000 {
2001 /* sethi.p hi(ad), gr9
2002 setlo lo(ad), gr9 */
2003 bfd_put_32 (output_bfd,
2004 0x12f80000
2005 | ((ad >> 16)
2006 & (((bfd_vma)1 << 16) - 1)),
2007 plt_code);
2008 plt_code += 4;
2009 bfd_put_32 (output_bfd,
2010 0x92f40000
2011 | (ad
2012 & (((bfd_vma)1 << 16) - 1)),
2013 plt_code);
2014 plt_code += 4;
2015 }
2016 /* ret */
2017 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2018 }
2019 else if (entry->tlsoff_entry)
2020 {
2021 /* Figure out what kind of PLT entry we need, depending on the
2022 location of the TLS descriptor within the GOT. */
2023 if (entry->tlsoff_entry >= -(1 << (12 - 1))
2024 && entry->tlsoff_entry < (1 << (12 - 1)))
2025 {
2026 /* ldi @(gr15, tlsoff_entry), gr9 */
2027 bfd_put_32 (output_bfd,
2028 0x92c8f000 | (entry->tlsoff_entry
2029 & ((1 << 12) - 1)),
2030 plt_code);
2031 plt_code += 4;
2032 }
2033 else
2034 {
2035 if (entry->tlsoff_entry >= -(1 << (16 - 1))
2036 && entry->tlsoff_entry < (1 << (16 - 1)))
2037 {
2038 /* setlos lo(tlsoff_entry), gr8 */
2039 bfd_put_32 (output_bfd,
2040 0x90fc0000
2041 | (entry->tlsoff_entry
2042 & (((bfd_vma)1 << 16) - 1)),
2043 plt_code);
2044 plt_code += 4;
2045 }
2046 else
2047 {
2048 /* sethi.p hi(tlsoff_entry), gr8
2049 setlo lo(tlsoff_entry), gr8 */
2050 bfd_put_32 (output_bfd,
2051 0x10f80000
2052 | ((entry->tlsoff_entry >> 16)
2053 & (((bfd_vma)1 << 16) - 1)),
2054 plt_code);
2055 plt_code += 4;
2056 bfd_put_32 (output_bfd,
2057 0x90f40000
2058 | (entry->tlsoff_entry
2059 & (((bfd_vma)1 << 16) - 1)),
2060 plt_code);
2061 plt_code += 4;
2062 }
2063 /* ld @(gr15,gr8),gr9 */
2064 bfd_put_32 (output_bfd, 0x9008f108, plt_code);
2065 plt_code += 4;
2066 }
2067 /* ret */
2068 bfd_put_32 (output_bfd, 0xc03a4000, plt_code);
2069 }
2070 else
2071 {
2072 BFD_ASSERT (entry->tlsdesc_entry);
2073
2074 /* Figure out what kind of PLT entry we need, depending on the
2075 location of the TLS descriptor within the GOT. */
2076 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
2077 && entry->tlsdesc_entry < (1 << (12 - 1)))
2078 {
2079 /* lddi @(gr15, tlsdesc_entry), gr8 */
2080 bfd_put_32 (output_bfd,
2081 0x90ccf000 | (entry->tlsdesc_entry
2082 & ((1 << 12) - 1)),
2083 plt_code);
2084 plt_code += 4;
2085 }
2086 else
2087 {
2088 if (entry->tlsdesc_entry >= -(1 << (16 - 1))
2089 && entry->tlsdesc_entry < (1 << (16 - 1)))
2090 {
2091 /* setlos lo(tlsdesc_entry), gr8 */
2092 bfd_put_32 (output_bfd,
2093 0x90fc0000
2094 | (entry->tlsdesc_entry
2095 & (((bfd_vma)1 << 16) - 1)),
2096 plt_code);
2097 plt_code += 4;
2098 }
2099 else
2100 {
2101 /* sethi.p hi(tlsdesc_entry), gr8
2102 setlo lo(tlsdesc_entry), gr8 */
2103 bfd_put_32 (output_bfd,
2104 0x10f80000
2105 | ((entry->tlsdesc_entry >> 16)
2106 & (((bfd_vma)1 << 16) - 1)),
2107 plt_code);
2108 plt_code += 4;
2109 bfd_put_32 (output_bfd,
2110 0x90f40000
2111 | (entry->tlsdesc_entry
2112 & (((bfd_vma)1 << 16) - 1)),
2113 plt_code);
2114 plt_code += 4;
2115 }
2116 /* ldd @(gr15,gr8),gr8 */
2117 bfd_put_32 (output_bfd, 0x9008f148, plt_code);
2118 plt_code += 4;
2119 }
2120 /* jmpl @(gr8,gr0) */
2121 bfd_put_32 (output_bfd, 0x80308000, plt_code);
2122 }
2123 }
2124
2125 return TRUE;
2126 }
2127
2128 /* Handle an FRV small data reloc. */
2129
2130 static bfd_reloc_status_type
2131 elf32_frv_relocate_gprel12 (struct bfd_link_info *info,
2132 bfd *input_bfd,
2133 asection *input_section,
2134 Elf_Internal_Rela *relocation,
2135 bfd_byte *contents,
2136 bfd_vma value)
2137 {
2138 bfd_vma insn;
2139 bfd_vma gp;
2140 struct bfd_link_hash_entry *h;
2141
2142 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2143
2144 gp = (h->u.def.value
2145 + h->u.def.section->output_section->vma
2146 + h->u.def.section->output_offset);
2147
2148 value -= input_section->output_section->vma;
2149 value -= (gp - input_section->output_section->vma);
2150
2151 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2152
2153 value += relocation->r_addend;
2154
2155 if ((long) value > 0x7ff || (long) value < -0x800)
2156 return bfd_reloc_overflow;
2157
2158 bfd_put_32 (input_bfd,
2159 (insn & 0xfffff000) | (value & 0xfff),
2160 contents + relocation->r_offset);
2161
2162 return bfd_reloc_ok;
2163 }
2164
2165 /* Handle an FRV small data reloc. for the u12 field. */
2166
2167 static bfd_reloc_status_type
2168 elf32_frv_relocate_gprelu12 (struct bfd_link_info *info,
2169 bfd *input_bfd,
2170 asection *input_section,
2171 Elf_Internal_Rela *relocation,
2172 bfd_byte *contents,
2173 bfd_vma value)
2174 {
2175 bfd_vma insn;
2176 bfd_vma gp;
2177 struct bfd_link_hash_entry *h;
2178 bfd_vma mask;
2179
2180 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2181
2182 gp = (h->u.def.value
2183 + h->u.def.section->output_section->vma
2184 + h->u.def.section->output_offset);
2185
2186 value -= input_section->output_section->vma;
2187 value -= (gp - input_section->output_section->vma);
2188
2189 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2190
2191 value += relocation->r_addend;
2192
2193 if ((long) value > 0x7ff || (long) value < -0x800)
2194 return bfd_reloc_overflow;
2195
2196 /* The high 6 bits go into bits 17-12. The low 6 bits go into bits 5-0. */
2197 mask = 0x3f03f;
2198 insn = (insn & ~mask) | ((value & 0xfc0) << 12) | (value & 0x3f);
2199
2200 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2201
2202 return bfd_reloc_ok;
2203 }
2204
2205 /* Handle an FRV ELF HI16 reloc. */
2206
2207 static bfd_reloc_status_type
2208 elf32_frv_relocate_hi16 (bfd *input_bfd,
2209 Elf_Internal_Rela *relhi,
2210 bfd_byte *contents,
2211 bfd_vma value)
2212 {
2213 bfd_vma insn;
2214
2215 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
2216
2217 value += relhi->r_addend;
2218 value = ((value >> 16) & 0xffff);
2219
2220 insn = (insn & 0xffff0000) | value;
2221
2222 if ((long) value > 0xffff || (long) value < -0x10000)
2223 return bfd_reloc_overflow;
2224
2225 bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
2226 return bfd_reloc_ok;
2227
2228 }
2229 static bfd_reloc_status_type
2230 elf32_frv_relocate_lo16 (bfd *input_bfd,
2231 Elf_Internal_Rela *rello,
2232 bfd_byte *contents,
2233 bfd_vma value)
2234 {
2235 bfd_vma insn;
2236
2237 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2238
2239 value += rello->r_addend;
2240 value = value & 0xffff;
2241
2242 insn = (insn & 0xffff0000) | value;
2243
2244 if ((long) value > 0xffff || (long) value < -0x10000)
2245 return bfd_reloc_overflow;
2246
2247 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2248 return bfd_reloc_ok;
2249 }
2250
2251 /* Perform the relocation for the CALL label24 instruction. */
2252
2253 static bfd_reloc_status_type
2254 elf32_frv_relocate_label24 (bfd *input_bfd,
2255 asection *input_section,
2256 Elf_Internal_Rela *rello,
2257 bfd_byte *contents,
2258 bfd_vma value)
2259 {
2260 bfd_vma insn;
2261 bfd_vma label6;
2262 bfd_vma label18;
2263
2264 /* The format for the call instruction is:
2265
2266 0 000000 0001111 000000000000000000
2267 label6 opcode label18
2268
2269 The branch calculation is: pc + (4*label24)
2270 where label24 is the concatenation of label6 and label18. */
2271
2272 /* Grab the instruction. */
2273 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
2274
2275 value -= input_section->output_section->vma + input_section->output_offset;
2276 value -= rello->r_offset;
2277 value += rello->r_addend;
2278
2279 value = value >> 2;
2280
2281 label6 = value & 0xfc0000;
2282 label6 = label6 << 7;
2283
2284 label18 = value & 0x3ffff;
2285
2286 insn = insn & 0x803c0000;
2287 insn = insn | label6;
2288 insn = insn | label18;
2289
2290 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
2291
2292 return bfd_reloc_ok;
2293 }
2294
2295 static bfd_reloc_status_type
2296 elf32_frv_relocate_gprelhi (struct bfd_link_info *info,
2297 bfd *input_bfd,
2298 asection *input_section,
2299 Elf_Internal_Rela *relocation,
2300 bfd_byte *contents,
2301 bfd_vma value)
2302 {
2303 bfd_vma insn;
2304 bfd_vma gp;
2305 struct bfd_link_hash_entry *h;
2306
2307 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2308
2309 gp = (h->u.def.value
2310 + h->u.def.section->output_section->vma
2311 + h->u.def.section->output_offset);
2312
2313 value -= input_section->output_section->vma;
2314 value -= (gp - input_section->output_section->vma);
2315 value += relocation->r_addend;
2316 value = ((value >> 16) & 0xffff);
2317
2318 if ((long) value > 0xffff || (long) value < -0x10000)
2319 return bfd_reloc_overflow;
2320
2321 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2322 insn = (insn & 0xffff0000) | value;
2323
2324 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2325 return bfd_reloc_ok;
2326 }
2327
2328 static bfd_reloc_status_type
2329 elf32_frv_relocate_gprello (struct bfd_link_info *info,
2330 bfd *input_bfd,
2331 asection *input_section,
2332 Elf_Internal_Rela *relocation,
2333 bfd_byte *contents,
2334 bfd_vma value)
2335 {
2336 bfd_vma insn;
2337 bfd_vma gp;
2338 struct bfd_link_hash_entry *h;
2339
2340 h = bfd_link_hash_lookup (info->hash, "_gp", FALSE, FALSE, TRUE);
2341
2342 gp = (h->u.def.value
2343 + h->u.def.section->output_section->vma
2344 + h->u.def.section->output_offset);
2345
2346 value -= input_section->output_section->vma;
2347 value -= (gp - input_section->output_section->vma);
2348 value += relocation->r_addend;
2349 value = value & 0xffff;
2350
2351 if ((long) value > 0xffff || (long) value < -0x10000)
2352 return bfd_reloc_overflow;
2353
2354 insn = bfd_get_32 (input_bfd, contents + relocation->r_offset);
2355 insn = (insn & 0xffff0000) | value;
2356
2357 bfd_put_32 (input_bfd, insn, contents + relocation->r_offset);
2358
2359 return bfd_reloc_ok;
2360 }
2361
2362 static reloc_howto_type *
2363 frv_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2364 bfd_reloc_code_real_type code)
2365 {
2366 switch (code)
2367 {
2368 default:
2369 break;
2370
2371 case BFD_RELOC_NONE:
2372 return &elf32_frv_howto_table[ (int) R_FRV_NONE];
2373
2374 case BFD_RELOC_32:
2375 if (elf_elfheader (abfd)->e_type == ET_EXEC
2376 || elf_elfheader (abfd)->e_type == ET_DYN)
2377 return &elf32_frv_rel_32_howto;
2378 /* Fall through. */
2379 case BFD_RELOC_CTOR:
2380 return &elf32_frv_howto_table[ (int) R_FRV_32];
2381
2382 case BFD_RELOC_FRV_LABEL16:
2383 return &elf32_frv_howto_table[ (int) R_FRV_LABEL16];
2384
2385 case BFD_RELOC_FRV_LABEL24:
2386 return &elf32_frv_howto_table[ (int) R_FRV_LABEL24];
2387
2388 case BFD_RELOC_FRV_LO16:
2389 return &elf32_frv_howto_table[ (int) R_FRV_LO16];
2390
2391 case BFD_RELOC_FRV_HI16:
2392 return &elf32_frv_howto_table[ (int) R_FRV_HI16];
2393
2394 case BFD_RELOC_FRV_GPREL12:
2395 return &elf32_frv_howto_table[ (int) R_FRV_GPREL12];
2396
2397 case BFD_RELOC_FRV_GPRELU12:
2398 return &elf32_frv_howto_table[ (int) R_FRV_GPRELU12];
2399
2400 case BFD_RELOC_FRV_GPREL32:
2401 return &elf32_frv_howto_table[ (int) R_FRV_GPREL32];
2402
2403 case BFD_RELOC_FRV_GPRELHI:
2404 return &elf32_frv_howto_table[ (int) R_FRV_GPRELHI];
2405
2406 case BFD_RELOC_FRV_GPRELLO:
2407 return &elf32_frv_howto_table[ (int) R_FRV_GPRELLO];
2408
2409 case BFD_RELOC_FRV_GOT12:
2410 return &elf32_frv_howto_table[ (int) R_FRV_GOT12];
2411
2412 case BFD_RELOC_FRV_GOTHI:
2413 return &elf32_frv_howto_table[ (int) R_FRV_GOTHI];
2414
2415 case BFD_RELOC_FRV_GOTLO:
2416 return &elf32_frv_howto_table[ (int) R_FRV_GOTLO];
2417
2418 case BFD_RELOC_FRV_FUNCDESC:
2419 if (elf_elfheader (abfd)->e_type == ET_EXEC
2420 || elf_elfheader (abfd)->e_type == ET_DYN)
2421 return &elf32_frv_rel_funcdesc_howto;
2422 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC];
2423
2424 case BFD_RELOC_FRV_FUNCDESC_GOT12:
2425 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOT12];
2426
2427 case BFD_RELOC_FRV_FUNCDESC_GOTHI:
2428 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTHI];
2429
2430 case BFD_RELOC_FRV_FUNCDESC_GOTLO:
2431 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTLO];
2432
2433 case BFD_RELOC_FRV_FUNCDESC_VALUE:
2434 if (elf_elfheader (abfd)->e_type == ET_EXEC
2435 || elf_elfheader (abfd)->e_type == ET_DYN)
2436 return &elf32_frv_rel_funcdesc_value_howto;
2437 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_VALUE];
2438
2439 case BFD_RELOC_FRV_FUNCDESC_GOTOFF12:
2440 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFF12];
2441
2442 case BFD_RELOC_FRV_FUNCDESC_GOTOFFHI:
2443 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFHI];
2444
2445 case BFD_RELOC_FRV_FUNCDESC_GOTOFFLO:
2446 return &elf32_frv_howto_table[ (int) R_FRV_FUNCDESC_GOTOFFLO];
2447
2448 case BFD_RELOC_FRV_GOTOFF12:
2449 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFF12];
2450
2451 case BFD_RELOC_FRV_GOTOFFHI:
2452 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFHI];
2453
2454 case BFD_RELOC_FRV_GOTOFFLO:
2455 return &elf32_frv_howto_table[ (int) R_FRV_GOTOFFLO];
2456
2457 case BFD_RELOC_FRV_GETTLSOFF:
2458 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF];
2459
2460 case BFD_RELOC_FRV_TLSDESC_VALUE:
2461 if (elf_elfheader (abfd)->e_type == ET_EXEC
2462 || elf_elfheader (abfd)->e_type == ET_DYN)
2463 return &elf32_frv_rel_tlsdesc_value_howto;
2464 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_VALUE];
2465
2466 case BFD_RELOC_FRV_GOTTLSDESC12:
2467 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESC12];
2468
2469 case BFD_RELOC_FRV_GOTTLSDESCHI:
2470 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCHI];
2471
2472 case BFD_RELOC_FRV_GOTTLSDESCLO:
2473 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSDESCLO];
2474
2475 case BFD_RELOC_FRV_TLSMOFF12:
2476 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF12];
2477
2478 case BFD_RELOC_FRV_TLSMOFFHI:
2479 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFHI];
2480
2481 case BFD_RELOC_FRV_TLSMOFFLO:
2482 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFFLO];
2483
2484 case BFD_RELOC_FRV_GOTTLSOFF12:
2485 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFF12];
2486
2487 case BFD_RELOC_FRV_GOTTLSOFFHI:
2488 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFHI];
2489
2490 case BFD_RELOC_FRV_GOTTLSOFFLO:
2491 return &elf32_frv_howto_table[ (int) R_FRV_GOTTLSOFFLO];
2492
2493 case BFD_RELOC_FRV_TLSOFF:
2494 if (elf_elfheader (abfd)->e_type == ET_EXEC
2495 || elf_elfheader (abfd)->e_type == ET_DYN)
2496 return &elf32_frv_rel_tlsoff_howto;
2497 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF];
2498
2499 case BFD_RELOC_FRV_TLSDESC_RELAX:
2500 return &elf32_frv_howto_table[ (int) R_FRV_TLSDESC_RELAX];
2501
2502 case BFD_RELOC_FRV_GETTLSOFF_RELAX:
2503 return &elf32_frv_howto_table[ (int) R_FRV_GETTLSOFF_RELAX];
2504
2505 case BFD_RELOC_FRV_TLSOFF_RELAX:
2506 return &elf32_frv_howto_table[ (int) R_FRV_TLSOFF_RELAX];
2507
2508 case BFD_RELOC_FRV_TLSMOFF:
2509 return &elf32_frv_howto_table[ (int) R_FRV_TLSMOFF];
2510
2511 case BFD_RELOC_VTABLE_INHERIT:
2512 return &elf32_frv_vtinherit_howto;
2513
2514 case BFD_RELOC_VTABLE_ENTRY:
2515 return &elf32_frv_vtentry_howto;
2516 }
2517
2518 return NULL;
2519 }
2520
2521 static reloc_howto_type *
2522 frv_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
2523 {
2524 unsigned int i;
2525
2526 for (i = 0;
2527 i < sizeof (elf32_frv_howto_table) / sizeof (elf32_frv_howto_table[0]);
2528 i++)
2529 if (elf32_frv_howto_table[i].name != NULL
2530 && strcasecmp (elf32_frv_howto_table[i].name, r_name) == 0)
2531 return &elf32_frv_howto_table[i];
2532
2533 if (strcasecmp (elf32_frv_vtinherit_howto.name, r_name) == 0)
2534 return &elf32_frv_vtinherit_howto;
2535 if (strcasecmp (elf32_frv_vtentry_howto.name, r_name) == 0)
2536 return &elf32_frv_vtentry_howto;
2537
2538 return NULL;
2539 }
2540
2541 /* Set the howto pointer for an FRV ELF reloc. */
2542
2543 static void
2544 frv_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2545 arelent *cache_ptr,
2546 Elf_Internal_Rela *dst)
2547 {
2548 unsigned int r_type;
2549
2550 r_type = ELF32_R_TYPE (dst->r_info);
2551 switch (r_type)
2552 {
2553 case R_FRV_GNU_VTINHERIT:
2554 cache_ptr->howto = &elf32_frv_vtinherit_howto;
2555 break;
2556
2557 case R_FRV_GNU_VTENTRY:
2558 cache_ptr->howto = &elf32_frv_vtentry_howto;
2559 break;
2560
2561 default:
2562 if (r_type >= (unsigned int) R_FRV_max)
2563 {
2564 _bfd_error_handler (_("%B: invalid FRV reloc number: %d"), abfd, r_type);
2565 r_type = 0;
2566 }
2567 cache_ptr->howto = & elf32_frv_howto_table [r_type];
2568 break;
2569 }
2570 }
2571
2572 /* Set the howto pointer for an FRV ELF REL reloc. */
2573 static void
2574 frvfdpic_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2575 arelent *cache_ptr, Elf_Internal_Rela *dst)
2576 {
2577 unsigned int r_type;
2578
2579 r_type = ELF32_R_TYPE (dst->r_info);
2580 switch (r_type)
2581 {
2582 case R_FRV_32:
2583 cache_ptr->howto = &elf32_frv_rel_32_howto;
2584 break;
2585
2586 case R_FRV_FUNCDESC:
2587 cache_ptr->howto = &elf32_frv_rel_funcdesc_howto;
2588 break;
2589
2590 case R_FRV_FUNCDESC_VALUE:
2591 cache_ptr->howto = &elf32_frv_rel_funcdesc_value_howto;
2592 break;
2593
2594 case R_FRV_TLSDESC_VALUE:
2595 cache_ptr->howto = &elf32_frv_rel_tlsdesc_value_howto;
2596 break;
2597
2598 case R_FRV_TLSOFF:
2599 cache_ptr->howto = &elf32_frv_rel_tlsoff_howto;
2600 break;
2601
2602 default:
2603 cache_ptr->howto = NULL;
2604 break;
2605 }
2606 }
2607 \f
2608 /* Perform a single relocation. By default we use the standard BFD
2609 routines, but a few relocs, we have to do them ourselves. */
2610
2611 static bfd_reloc_status_type
2612 frv_final_link_relocate (reloc_howto_type *howto,
2613 bfd *input_bfd,
2614 asection *input_section,
2615 bfd_byte *contents,
2616 Elf_Internal_Rela *rel,
2617 bfd_vma relocation)
2618 {
2619 return _bfd_final_link_relocate (howto, input_bfd, input_section,
2620 contents, rel->r_offset, relocation,
2621 rel->r_addend);
2622 }
2623
2624 \f
2625 /* Relocate an FRV ELF section.
2626
2627 The RELOCATE_SECTION function is called by the new ELF backend linker
2628 to handle the relocations for a section.
2629
2630 The relocs are always passed as Rela structures; if the section
2631 actually uses Rel structures, the r_addend field will always be
2632 zero.
2633
2634 This function is responsible for adjusting the section contents as
2635 necessary, and (if using Rela relocs and generating a relocatable
2636 output file) adjusting the reloc addend as necessary.
2637
2638 This function does not have to worry about setting the reloc
2639 address or the reloc symbol index.
2640
2641 LOCAL_SYMS is a pointer to the swapped in local symbols.
2642
2643 LOCAL_SECTIONS is an array giving the section in the input file
2644 corresponding to the st_shndx field of each local symbol.
2645
2646 The global hash table entry for the global symbols can be found
2647 via elf_sym_hashes (input_bfd).
2648
2649 When generating relocatable output, this function must handle
2650 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2651 going to be the section symbol corresponding to the output
2652 section, which means that the addend must be adjusted
2653 accordingly. */
2654
2655 static bfd_boolean
2656 elf32_frv_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2657 struct bfd_link_info *info,
2658 bfd *input_bfd,
2659 asection *input_section,
2660 bfd_byte *contents,
2661 Elf_Internal_Rela *relocs,
2662 Elf_Internal_Sym *local_syms,
2663 asection **local_sections)
2664 {
2665 Elf_Internal_Shdr *symtab_hdr;
2666 struct elf_link_hash_entry **sym_hashes;
2667 Elf_Internal_Rela *rel;
2668 Elf_Internal_Rela *relend;
2669 unsigned isec_segment, got_segment, plt_segment, gprel_segment, tls_segment,
2670 check_segment[2];
2671 int silence_segment_error = !bfd_link_pic (info);
2672 unsigned long insn;
2673
2674 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
2675 sym_hashes = elf_sym_hashes (input_bfd);
2676 relend = relocs + input_section->reloc_count;
2677
2678 isec_segment = _frvfdpic_osec_to_segment (output_bfd,
2679 input_section->output_section);
2680 if (IS_FDPIC (output_bfd) && frvfdpic_got_section (info))
2681 got_segment = _frvfdpic_osec_to_segment (output_bfd,
2682 frvfdpic_got_section (info)
2683 ->output_section);
2684 else
2685 got_segment = -1;
2686 if (IS_FDPIC (output_bfd) && frvfdpic_gotfixup_section (info))
2687 gprel_segment = _frvfdpic_osec_to_segment (output_bfd,
2688 frvfdpic_gotfixup_section (info)
2689 ->output_section);
2690 else
2691 gprel_segment = -1;
2692 if (IS_FDPIC (output_bfd) && frvfdpic_plt_section (info))
2693 plt_segment = _frvfdpic_osec_to_segment (output_bfd,
2694 frvfdpic_plt_section (info)
2695 ->output_section);
2696 else
2697 plt_segment = -1;
2698 if (elf_hash_table (info)->tls_sec)
2699 tls_segment = _frvfdpic_osec_to_segment (output_bfd,
2700 elf_hash_table (info)->tls_sec);
2701 else
2702 tls_segment = -1;
2703
2704 for (rel = relocs; rel < relend; rel ++)
2705 {
2706 reloc_howto_type *howto;
2707 unsigned long r_symndx;
2708 Elf_Internal_Sym *sym;
2709 asection *sec;
2710 struct elf_link_hash_entry *h;
2711 bfd_vma relocation;
2712 bfd_reloc_status_type r;
2713 const char *name;
2714 int r_type;
2715 asection *osec;
2716 struct frvfdpic_relocs_info *picrel;
2717 bfd_vma orig_addend = rel->r_addend;
2718
2719 r_type = ELF32_R_TYPE (rel->r_info);
2720
2721 if ( r_type == R_FRV_GNU_VTINHERIT
2722 || r_type == R_FRV_GNU_VTENTRY)
2723 continue;
2724
2725 r_symndx = ELF32_R_SYM (rel->r_info);
2726 howto = elf32_frv_howto_table + ELF32_R_TYPE (rel->r_info);
2727 h = NULL;
2728 sym = NULL;
2729 sec = NULL;
2730
2731 if (r_symndx < symtab_hdr->sh_info)
2732 {
2733 sym = local_syms + r_symndx;
2734 osec = sec = local_sections [r_symndx];
2735 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2736
2737 name = bfd_elf_string_from_elf_section
2738 (input_bfd, symtab_hdr->sh_link, sym->st_name);
2739 if (name == NULL || name[0] == 0)
2740 name = bfd_section_name (input_bfd, sec);
2741 }
2742 else
2743 {
2744 bfd_boolean warned, ignored;
2745 bfd_boolean unresolved_reloc;
2746
2747 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2748 r_symndx, symtab_hdr, sym_hashes,
2749 h, sec, relocation,
2750 unresolved_reloc, warned, ignored);
2751 osec = sec;
2752 name = h->root.root.string;
2753 }
2754
2755 if (sec != NULL && discarded_section (sec))
2756 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2757 rel, 1, relend, howto, 0, contents);
2758
2759 if (bfd_link_relocatable (info))
2760 continue;
2761
2762 if (r_type != R_FRV_TLSMOFF
2763 && h != NULL
2764 && (h->root.type == bfd_link_hash_defined
2765 || h->root.type == bfd_link_hash_defweak)
2766 && !FRVFDPIC_SYM_LOCAL (info, h))
2767 {
2768 osec = sec = NULL;
2769 relocation = 0;
2770 }
2771
2772 switch (r_type)
2773 {
2774 case R_FRV_LABEL24:
2775 case R_FRV_32:
2776 if (! IS_FDPIC (output_bfd))
2777 goto non_fdpic;
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 (_("%H: relocation to `%s+%v'"
2829 " may have caused the error above\n"),
2830 input_bfd, input_section, rel->r_offset, name, rel->r_addend);
2831 return FALSE;
2832 }
2833
2834 break;
2835
2836 default:
2837 non_fdpic:
2838 picrel = NULL;
2839 if (h
2840 && ! FRVFDPIC_SYM_LOCAL (info, h)
2841 && _bfd_elf_section_offset (output_bfd, info, input_section,
2842 rel->r_offset) != (bfd_vma) -1)
2843 {
2844 info->callbacks->einfo
2845 (_("%H: relocation references symbol"
2846 " not defined in the module\n"),
2847 input_bfd, input_section, rel->r_offset);
2848 return FALSE;
2849 }
2850 break;
2851 }
2852
2853 switch (r_type)
2854 {
2855 case R_FRV_GETTLSOFF:
2856 case R_FRV_TLSDESC_VALUE:
2857 case R_FRV_GOTTLSDESC12:
2858 case R_FRV_GOTTLSDESCHI:
2859 case R_FRV_GOTTLSDESCLO:
2860 case R_FRV_TLSMOFF12:
2861 case R_FRV_TLSMOFFHI:
2862 case R_FRV_TLSMOFFLO:
2863 case R_FRV_GOTTLSOFF12:
2864 case R_FRV_GOTTLSOFFHI:
2865 case R_FRV_GOTTLSOFFLO:
2866 case R_FRV_TLSOFF:
2867 case R_FRV_TLSDESC_RELAX:
2868 case R_FRV_GETTLSOFF_RELAX:
2869 case R_FRV_TLSOFF_RELAX:
2870 case R_FRV_TLSMOFF:
2871 if (sec && (bfd_is_abs_section (sec) || bfd_is_und_section (sec)))
2872 relocation += tls_biased_base (info);
2873 break;
2874
2875 default:
2876 break;
2877 }
2878
2879 /* Try to apply TLS relaxations. */
2880 if (1)
2881 switch (r_type)
2882 {
2883
2884 #define LOCAL_EXEC_P(info, picrel) \
2885 (bfd_link_executable (info) \
2886 && (picrel->symndx != -1 || FRVFDPIC_SYM_LOCAL ((info), (picrel)->d.h)))
2887 #define INITIAL_EXEC_P(info, picrel) \
2888 ((bfd_link_executable (info)|| (info)->flags & DF_STATIC_TLS) \
2889 && (picrel)->tlsoff_entry)
2890
2891 #define IN_RANGE_FOR_OFST12_P(value) \
2892 ((bfd_vma)((value) + 2048) < (bfd_vma)4096)
2893 #define IN_RANGE_FOR_SETLOS_P(value) \
2894 ((bfd_vma)((value) + 32768) < (bfd_vma)65536)
2895 #define TLSMOFF_IN_RANGE_FOR_SETLOS_P(value, info) \
2896 (IN_RANGE_FOR_SETLOS_P ((value) - tls_biased_base (info)))
2897
2898 #define RELAX_GETTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2899 (LOCAL_EXEC_P ((info), (picrel)) \
2900 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2901 #define RELAX_GETTLSOFF_INITIAL_EXEC_P(info, picrel) \
2902 (INITIAL_EXEC_P ((info), (picrel)) \
2903 && IN_RANGE_FOR_OFST12_P ((picrel)->tlsoff_entry))
2904
2905 #define RELAX_TLSDESC_LOCAL_EXEC_P(info, picrel, value) \
2906 (LOCAL_EXEC_P ((info), (picrel)))
2907 #define RELAX_TLSDESC_INITIAL_EXEC_P(info, picrel) \
2908 (INITIAL_EXEC_P ((info), (picrel)))
2909
2910 #define RELAX_GOTTLSOFF_LOCAL_EXEC_P(info, picrel, value) \
2911 (LOCAL_EXEC_P ((info), (picrel)) \
2912 && TLSMOFF_IN_RANGE_FOR_SETLOS_P((value), (info)))
2913
2914 case R_FRV_GETTLSOFF:
2915 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2916
2917 /* Is this a call instruction? */
2918 if ((insn & (unsigned long)0x01fc0000) != 0x003c0000)
2919 {
2920 info->callbacks->einfo
2921 (_("%H: R_FRV_GETTLSOFF not applied to a call instruction\n"),
2922 input_bfd, input_section, rel->r_offset);
2923 return FALSE;
2924 }
2925
2926 if (RELAX_GETTLSOFF_LOCAL_EXEC_P (info, picrel,
2927 relocation + rel->r_addend))
2928 {
2929 /* Replace the call instruction (except the packing bit)
2930 with setlos #tlsmofflo(symbol+offset), gr9. */
2931 insn &= (unsigned long)0x80000000;
2932 insn |= (unsigned long)0x12fc0000;
2933 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2934
2935 r_type = R_FRV_TLSMOFFLO;
2936 howto = elf32_frv_howto_table + r_type;
2937 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2938 }
2939
2940 else if (RELAX_GETTLSOFF_INITIAL_EXEC_P (info, picrel))
2941 {
2942 /* Replace the call instruction (except the packing bit)
2943 with ldi @(gr15, #gottlsoff12(symbol+addend)), gr9. */
2944 insn &= (unsigned long)0x80000000;
2945 insn |= (unsigned long)0x12c8f000;
2946 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2947
2948 r_type = R_FRV_GOTTLSOFF12;
2949 howto = elf32_frv_howto_table + r_type;
2950 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2951 }
2952
2953 break;
2954
2955 case R_FRV_GOTTLSDESC12:
2956 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2957
2958 /* Is this an lddi instruction? */
2959 if ((insn & (unsigned long)0x01fc0000) != 0x00cc0000)
2960 {
2961 info->callbacks->einfo
2962 (_("%H: R_FRV_GOTTLSDESC12"
2963 " not applied to an lddi instruction\n"),
2964 input_bfd, input_section, rel->r_offset);
2965 return FALSE;
2966 }
2967
2968 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2969 relocation + rel->r_addend)
2970 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
2971 info))
2972 {
2973 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2974 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
2975 Preserve the packing bit. */
2976 insn = (insn & (unsigned long)0x80000000)
2977 | ((insn + (unsigned long)0x02000000)
2978 & (unsigned long)0x7e000000);
2979 insn |= (unsigned long)0x00fc0000;
2980 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2981
2982 r_type = R_FRV_TLSMOFFLO;
2983 howto = elf32_frv_howto_table + r_type;
2984 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
2985 }
2986
2987 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
2988 relocation + rel->r_addend))
2989 {
2990 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
2991 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
2992 Preserve the packing bit. */
2993 insn = (insn & (unsigned long)0x80000000)
2994 | ((insn + (unsigned long)0x02000000)
2995 & (unsigned long)0x7e000000);
2996 insn |= (unsigned long)0x00f80000;
2997 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
2998
2999 r_type = R_FRV_TLSMOFFHI;
3000 howto = elf32_frv_howto_table + r_type;
3001 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3002 }
3003
3004 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3005 {
3006 /* Replace lddi @(grB, #gottlsdesc12(symbol+offset), grC
3007 with ldi @(grB, #gottlsoff12(symbol+offset),
3008 gr<C+1>. Preserve the packing bit. If gottlsoff12
3009 overflows, we'll error out, but that's sort-of ok,
3010 since we'd started with gottlsdesc12, that's actually
3011 more demanding. Compiling with -fPIE instead of
3012 -fpie would fix it; linking with --relax should fix
3013 it as well. */
3014 insn = (insn & (unsigned long)0x80cbf000)
3015 | ((insn + (unsigned long)0x02000000)
3016 & (unsigned long)0x7e000000);
3017 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3018
3019 r_type = R_FRV_GOTTLSOFF12;
3020 howto = elf32_frv_howto_table + r_type;
3021 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3022 }
3023
3024 break;
3025
3026 case R_FRV_GOTTLSDESCHI:
3027 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3028
3029 /* Is this a sethi instruction? */
3030 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3031 {
3032 info->callbacks->einfo
3033 (_("%H: R_FRV_GOTTLSDESCHI"
3034 " not applied to a sethi instruction\n"),
3035 input_bfd, input_section, rel->r_offset);
3036 return FALSE;
3037 }
3038
3039 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3040 relocation + rel->r_addend)
3041 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3042 && IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry)))
3043 {
3044 /* Replace sethi with a nop. Preserve the packing bit. */
3045 insn &= (unsigned long)0x80000000;
3046 insn |= (unsigned long)0x00880000;
3047 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3048
3049 /* Nothing to relocate. */
3050 continue;
3051 }
3052
3053 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3054 {
3055 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3056 r_type = R_FRV_GOTTLSOFFHI;
3057 howto = elf32_frv_howto_table + r_type;
3058 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3059 }
3060
3061 break;
3062
3063 case R_FRV_GOTTLSDESCLO:
3064 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3065
3066 /* Is this a setlo or setlos instruction? */
3067 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3068 {
3069 info->callbacks->einfo
3070 (_("%H: R_FRV_GOTTLSDESCLO"
3071 " not applied to a setlo or setlos instruction\n"),
3072 input_bfd, input_section, rel->r_offset);
3073 return FALSE;
3074 }
3075
3076 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3077 relocation + rel->r_addend)
3078 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3079 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3080 {
3081 /* Replace setlo/setlos with a nop. Preserve the
3082 packing bit. */
3083 insn &= (unsigned long)0x80000000;
3084 insn |= (unsigned long)0x00880000;
3085 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3086
3087 /* Nothing to relocate. */
3088 continue;
3089 }
3090
3091 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3092 {
3093 /* If the corresponding sethi (if it exists) decayed
3094 to a nop, make sure this becomes (or already is) a
3095 setlos, not setlo. */
3096 if (IN_RANGE_FOR_SETLOS_P (picrel->tlsoff_entry))
3097 {
3098 insn |= (unsigned long)0x00080000;
3099 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3100 }
3101
3102 /* Simply decay GOTTLSDESC to GOTTLSOFF. */
3103 r_type = R_FRV_GOTTLSOFFLO;
3104 howto = elf32_frv_howto_table + r_type;
3105 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3106 }
3107
3108 break;
3109
3110 case R_FRV_TLSDESC_RELAX:
3111 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3112
3113 /* Is this an ldd instruction? */
3114 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080140)
3115 {
3116 info->callbacks->einfo
3117 (_("%H: R_FRV_TLSDESC_RELAX"
3118 " not applied to an ldd instruction\n"),
3119 input_bfd, input_section, rel->r_offset);
3120 return FALSE;
3121 }
3122
3123 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3124 relocation + rel->r_addend)
3125 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3126 info))
3127 {
3128 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3129 with setlos #tlsmofflo(symbol+offset), gr<C+1>.
3130 Preserve the packing bit. */
3131 insn = (insn & (unsigned long)0x80000000)
3132 | ((insn + (unsigned long)0x02000000)
3133 & (unsigned long)0x7e000000);
3134 insn |= (unsigned long)0x00fc0000;
3135 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3136
3137 r_type = R_FRV_TLSMOFFLO;
3138 howto = elf32_frv_howto_table + r_type;
3139 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3140 }
3141
3142 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3143 relocation + rel->r_addend))
3144 {
3145 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3146 with sethi #tlsmoffhi(symbol+offset), gr<C+1>.
3147 Preserve the packing bit. */
3148 insn = (insn & (unsigned long)0x80000000)
3149 | ((insn + (unsigned long)0x02000000)
3150 & (unsigned long)0x7e000000);
3151 insn |= (unsigned long)0x00f80000;
3152 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3153
3154 r_type = R_FRV_TLSMOFFHI;
3155 howto = elf32_frv_howto_table + r_type;
3156 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3157 }
3158
3159 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3160 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3161 {
3162 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3163 with ldi @(grB, #gottlsoff12(symbol+offset), gr<C+1>.
3164 Preserve the packing bit. */
3165 insn = (insn & (unsigned long)0x8003f000)
3166 | (unsigned long)0x00c80000
3167 | ((insn + (unsigned long)0x02000000)
3168 & (unsigned long)0x7e000000);
3169 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3170
3171 r_type = R_FRV_GOTTLSOFF12;
3172 howto = elf32_frv_howto_table + r_type;
3173 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3174 }
3175
3176 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3177 {
3178 /* Replace ldd #tlsdesc(symbol+offset)@(grB, grA), grC
3179 with ld #tlsoff(symbol+offset)@(grB, grA), gr<C+1>.
3180 Preserve the packing bit. */
3181 insn = (insn & (unsigned long)0x81ffffbf)
3182 | ((insn + (unsigned long)0x02000000)
3183 & (unsigned long)0x7e000000);
3184 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3185
3186 /* #tlsoff(symbol+offset) is just a relaxation
3187 annotation, so there's nothing left to
3188 relocate. */
3189 continue;
3190 }
3191
3192 break;
3193
3194 case R_FRV_GETTLSOFF_RELAX:
3195 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3196
3197 /* Is this a calll or callil instruction? */
3198 if ((insn & (unsigned long)0x7ff80fc0) != 0x02300000)
3199 {
3200 info->callbacks->einfo
3201 (_("%H: R_FRV_GETTLSOFF_RELAX"
3202 " not applied to a calll instruction\n"),
3203 input_bfd, input_section, rel->r_offset);
3204 return FALSE;
3205 }
3206
3207 if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3208 relocation + rel->r_addend)
3209 && TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3210 info))
3211 {
3212 /* Replace calll with a nop. Preserve the packing bit. */
3213 insn &= (unsigned long)0x80000000;
3214 insn |= (unsigned long)0x00880000;
3215 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3216
3217 /* Nothing to relocate. */
3218 continue;
3219 }
3220
3221 else if (RELAX_TLSDESC_LOCAL_EXEC_P (info, picrel,
3222 relocation + rel->r_addend))
3223 {
3224 /* Replace calll with setlo #tlsmofflo(symbol+offset), gr9.
3225 Preserve the packing bit. */
3226 insn &= (unsigned long)0x80000000;
3227 insn |= (unsigned long)0x12f40000;
3228 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3229
3230 r_type = R_FRV_TLSMOFFLO;
3231 howto = elf32_frv_howto_table + r_type;
3232 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3233 }
3234
3235 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel))
3236 {
3237 /* Replace calll with a nop. Preserve the packing bit. */
3238 insn &= (unsigned long)0x80000000;
3239 insn |= (unsigned long)0x00880000;
3240 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3241
3242 /* Nothing to relocate. */
3243 continue;
3244 }
3245
3246 break;
3247
3248 case R_FRV_GOTTLSOFF12:
3249 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3250
3251 /* Is this an ldi instruction? */
3252 if ((insn & (unsigned long)0x01fc0000) != 0x00c80000)
3253 {
3254 info->callbacks->einfo
3255 (_("%H: R_FRV_GOTTLSOFF12"
3256 " not applied to an ldi instruction\n"),
3257 input_bfd, input_section, rel->r_offset);
3258 return FALSE;
3259 }
3260
3261 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3262 relocation + rel->r_addend))
3263 {
3264 /* Replace ldi @(grB, #gottlsoff12(symbol+offset), grC
3265 with setlos #tlsmofflo(symbol+offset), grC.
3266 Preserve the packing bit. */
3267 insn &= (unsigned long)0xfe000000;
3268 insn |= (unsigned long)0x00fc0000;
3269 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3270
3271 r_type = R_FRV_TLSMOFFLO;
3272 howto = elf32_frv_howto_table + r_type;
3273 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3274 }
3275
3276 break;
3277
3278 case R_FRV_GOTTLSOFFHI:
3279 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3280
3281 /* Is this a sethi instruction? */
3282 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3283 {
3284 info->callbacks->einfo
3285 (_("%H: R_FRV_GOTTLSOFFHI"
3286 " not applied to a sethi instruction\n"),
3287 input_bfd, input_section, rel->r_offset);
3288 return FALSE;
3289 }
3290
3291 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3292 relocation + rel->r_addend)
3293 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3294 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3295 {
3296 /* Replace sethi with a nop. Preserve the packing bit. */
3297 insn &= (unsigned long)0x80000000;
3298 insn |= (unsigned long)0x00880000;
3299 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3300
3301 /* Nothing to relocate. */
3302 continue;
3303 }
3304
3305 break;
3306
3307 case R_FRV_GOTTLSOFFLO:
3308 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3309
3310 /* Is this a setlo or setlos instruction? */
3311 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3312 {
3313 info->callbacks->einfo
3314 (_("%H: R_FRV_GOTTLSOFFLO"
3315 " not applied to a setlo or setlos instruction\n"),
3316 input_bfd, input_section, rel->r_offset);
3317 return FALSE;
3318 }
3319
3320 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3321 relocation + rel->r_addend)
3322 || (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3323 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry)))
3324 {
3325 /* Replace setlo/setlos with a nop. Preserve the
3326 packing bit. */
3327 insn &= (unsigned long)0x80000000;
3328 insn |= (unsigned long)0x00880000;
3329 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3330
3331 /* Nothing to relocate. */
3332 continue;
3333 }
3334
3335 break;
3336
3337 case R_FRV_TLSOFF_RELAX:
3338 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3339
3340 /* Is this an ld instruction? */
3341 if ((insn & (unsigned long)0x01fc0fc0) != 0x00080100)
3342 {
3343 info->callbacks->einfo
3344 (_("%H: R_FRV_TLSOFF_RELAX"
3345 " not applied to an ld instruction\n"),
3346 input_bfd, input_section, rel->r_offset);
3347 return FALSE;
3348 }
3349
3350 if (RELAX_GOTTLSOFF_LOCAL_EXEC_P (info, picrel,
3351 relocation + rel->r_addend))
3352 {
3353 /* Replace ld #gottlsoff(symbol+offset)@(grB, grA), grC
3354 with setlos #tlsmofflo(symbol+offset), grC.
3355 Preserve the packing bit. */
3356 insn &= (unsigned long)0xfe000000;
3357 insn |= (unsigned long)0x00fc0000;
3358 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3359
3360 r_type = R_FRV_TLSMOFFLO;
3361 howto = elf32_frv_howto_table + r_type;
3362 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3363 }
3364
3365 else if (RELAX_TLSDESC_INITIAL_EXEC_P (info, picrel)
3366 && IN_RANGE_FOR_OFST12_P (picrel->tlsoff_entry))
3367 {
3368 /* Replace ld #tlsoff(symbol+offset)@(grB, grA), grC
3369 with ldi @(grB, #gottlsoff12(symbol+offset), grC.
3370 Preserve the packing bit. */
3371 insn = (insn & (unsigned long)0xfe03f000)
3372 | (unsigned long)0x00c80000;
3373 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3374
3375 r_type = R_FRV_GOTTLSOFF12;
3376 howto = elf32_frv_howto_table + r_type;
3377 rel->r_info = ELF32_R_INFO (r_symndx, r_type);
3378 }
3379
3380 break;
3381
3382 case R_FRV_TLSMOFFHI:
3383 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3384
3385 /* Is this a sethi instruction? */
3386 if ((insn & (unsigned long)0x01ff0000) != 0x00f80000)
3387 {
3388 info->callbacks->einfo
3389 (_("%H: R_FRV_TLSMOFFHI"
3390 " not applied to a sethi instruction\n"),
3391 input_bfd, input_section, rel->r_offset);
3392 return FALSE;
3393 }
3394
3395 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3396 info))
3397 {
3398 /* Replace sethi with a nop. Preserve the packing bit. */
3399 insn &= (unsigned long)0x80000000;
3400 insn |= (unsigned long)0x00880000;
3401 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3402
3403 /* Nothing to relocate. */
3404 continue;
3405 }
3406
3407 break;
3408
3409 case R_FRV_TLSMOFFLO:
3410 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3411
3412 /* Is this a setlo or setlos instruction? */
3413 if ((insn & (unsigned long)0x01f70000) != 0x00f40000)
3414 {
3415 info->callbacks->einfo
3416 (_("R_FRV_TLSMOFFLO"
3417 " not applied to a setlo or setlos instruction\n"),
3418 input_bfd, input_section, rel->r_offset);
3419 return FALSE;
3420 }
3421
3422 if (TLSMOFF_IN_RANGE_FOR_SETLOS_P (relocation + rel->r_addend,
3423 info))
3424 /* If the corresponding sethi (if it exists) decayed
3425 to a nop, make sure this becomes (or already is) a
3426 setlos, not setlo. */
3427 {
3428 insn |= (unsigned long)0x00080000;
3429 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
3430 }
3431
3432 break;
3433
3434 /*
3435 There's nothing to relax in these:
3436 R_FRV_TLSDESC_VALUE
3437 R_FRV_TLSOFF
3438 R_FRV_TLSMOFF12
3439 R_FRV_TLSMOFFHI
3440 R_FRV_TLSMOFFLO
3441 R_FRV_TLSMOFF
3442 */
3443
3444 default:
3445 break;
3446 }
3447
3448 switch (r_type)
3449 {
3450 case R_FRV_LABEL24:
3451 check_segment[0] = isec_segment;
3452 if (! IS_FDPIC (output_bfd))
3453 check_segment[1] = isec_segment;
3454 else if (picrel->plt)
3455 {
3456 relocation = frvfdpic_plt_section (info)->output_section->vma
3457 + frvfdpic_plt_section (info)->output_offset
3458 + picrel->plt_entry;
3459 check_segment[1] = plt_segment;
3460 }
3461 /* We don't want to warn on calls to undefined weak symbols,
3462 as calls to them must be protected by non-NULL tests
3463 anyway, and unprotected calls would invoke undefined
3464 behavior. */
3465 else if (picrel->symndx == -1
3466 && picrel->d.h->root.type == bfd_link_hash_undefweak)
3467 check_segment[1] = check_segment[0];
3468 else
3469 check_segment[1] = sec
3470 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3471 : (unsigned)-1;
3472 break;
3473
3474 case R_FRV_GOT12:
3475 case R_FRV_GOTHI:
3476 case R_FRV_GOTLO:
3477 relocation = picrel->got_entry;
3478 check_segment[0] = check_segment[1] = got_segment;
3479 break;
3480
3481 case R_FRV_FUNCDESC_GOT12:
3482 case R_FRV_FUNCDESC_GOTHI:
3483 case R_FRV_FUNCDESC_GOTLO:
3484 relocation = picrel->fdgot_entry;
3485 check_segment[0] = check_segment[1] = got_segment;
3486 break;
3487
3488 case R_FRV_GOTOFFHI:
3489 case R_FRV_GOTOFF12:
3490 case R_FRV_GOTOFFLO:
3491 relocation -= frvfdpic_got_section (info)->output_section->vma
3492 + frvfdpic_got_section (info)->output_offset
3493 + frvfdpic_got_initial_offset (info);
3494 check_segment[0] = got_segment;
3495 check_segment[1] = sec
3496 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3497 : (unsigned)-1;
3498 break;
3499
3500 case R_FRV_FUNCDESC_GOTOFF12:
3501 case R_FRV_FUNCDESC_GOTOFFHI:
3502 case R_FRV_FUNCDESC_GOTOFFLO:
3503 relocation = picrel->fd_entry;
3504 check_segment[0] = check_segment[1] = got_segment;
3505 break;
3506
3507 case R_FRV_FUNCDESC:
3508 {
3509 int dynindx;
3510 bfd_vma addend = rel->r_addend;
3511
3512 if (! (h && h->root.type == bfd_link_hash_undefweak
3513 && FRVFDPIC_SYM_LOCAL (info, h)))
3514 {
3515 /* If the symbol is dynamic and there may be dynamic
3516 symbol resolution because we are or are linked with a
3517 shared library, emit a FUNCDESC relocation such that
3518 the dynamic linker will allocate the function
3519 descriptor. If the symbol needs a non-local function
3520 descriptor but binds locally (e.g., its visibility is
3521 protected, emit a dynamic relocation decayed to
3522 section+offset. */
3523 if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h)
3524 && FRVFDPIC_SYM_LOCAL (info, h)
3525 && !bfd_link_pde (info))
3526 {
3527 dynindx = elf_section_data (h->root.u.def.section
3528 ->output_section)->dynindx;
3529 addend += h->root.u.def.section->output_offset
3530 + h->root.u.def.value;
3531 }
3532 else if (h && ! FRVFDPIC_FUNCDESC_LOCAL (info, h))
3533 {
3534 if (addend)
3535 {
3536 info->callbacks->einfo
3537 (_("%H: R_FRV_FUNCDESC references dynamic symbol"
3538 " with nonzero addend\n"),
3539 input_bfd, input_section, rel->r_offset);
3540 return FALSE;
3541 }
3542 dynindx = h->dynindx;
3543 }
3544 else
3545 {
3546 /* Otherwise, we know we have a private function
3547 descriptor, so reference it directly. */
3548 BFD_ASSERT (picrel->privfd);
3549 r_type = R_FRV_32;
3550 dynindx = elf_section_data (frvfdpic_got_section (info)
3551 ->output_section)->dynindx;
3552 addend = frvfdpic_got_section (info)->output_offset
3553 + frvfdpic_got_initial_offset (info)
3554 + picrel->fd_entry;
3555 }
3556
3557 /* If there is room for dynamic symbol resolution, emit
3558 the dynamic relocation. However, if we're linking an
3559 executable at a fixed location, we won't have emitted a
3560 dynamic symbol entry for the got section, so idx will
3561 be zero, which means we can and should compute the
3562 address of the private descriptor ourselves. */
3563 if (bfd_link_pde (info)
3564 && (!h || FRVFDPIC_FUNCDESC_LOCAL (info, h)))
3565 {
3566 addend += frvfdpic_got_section (info)->output_section->vma;
3567 if ((bfd_get_section_flags (output_bfd,
3568 input_section->output_section)
3569 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3570 {
3571 bfd_vma offset;
3572
3573 if (_frvfdpic_osec_readonly_p (output_bfd,
3574 input_section
3575 ->output_section))
3576 {
3577 info->callbacks->einfo
3578 (_("%H: cannot emit fixups"
3579 " in read-only section\n"),
3580 input_bfd, input_section, rel->r_offset);
3581 return FALSE;
3582 }
3583
3584 offset = _bfd_elf_section_offset
3585 (output_bfd, info,
3586 input_section, rel->r_offset);
3587
3588 if (offset != (bfd_vma)-1)
3589 _frvfdpic_add_rofixup (output_bfd,
3590 frvfdpic_gotfixup_section
3591 (info),
3592 offset + input_section
3593 ->output_section->vma
3594 + input_section->output_offset,
3595 picrel);
3596 }
3597 }
3598 else if ((bfd_get_section_flags (output_bfd,
3599 input_section->output_section)
3600 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3601 {
3602 bfd_vma offset;
3603
3604 if (_frvfdpic_osec_readonly_p (output_bfd,
3605 input_section
3606 ->output_section))
3607 {
3608 info->callbacks->einfo
3609 (_("%H: cannot emit dynamic relocations"
3610 " in read-only section\n"),
3611 input_bfd, input_section, rel->r_offset);
3612 return FALSE;
3613 }
3614
3615 offset = _bfd_elf_section_offset
3616 (output_bfd, info,
3617 input_section, rel->r_offset);
3618
3619 if (offset != (bfd_vma)-1)
3620 _frvfdpic_add_dyn_reloc (output_bfd,
3621 frvfdpic_gotrel_section (info),
3622 offset + input_section
3623 ->output_section->vma
3624 + input_section->output_offset,
3625 r_type, dynindx, addend, picrel);
3626 }
3627 else
3628 addend += frvfdpic_got_section (info)->output_section->vma;
3629 }
3630
3631 /* We want the addend in-place because dynamic
3632 relocations are REL. Setting relocation to it should
3633 arrange for it to be installed. */
3634 relocation = addend - rel->r_addend;
3635 }
3636 check_segment[0] = check_segment[1] = got_segment;
3637 break;
3638
3639 case R_FRV_32:
3640 if (! IS_FDPIC (output_bfd))
3641 {
3642 check_segment[0] = check_segment[1] = -1;
3643 break;
3644 }
3645 /* Fall through. */
3646 case R_FRV_FUNCDESC_VALUE:
3647 {
3648 int dynindx;
3649 bfd_vma addend = rel->r_addend;
3650
3651 /* If the symbol is dynamic but binds locally, use
3652 section+offset. */
3653 if (h && ! FRVFDPIC_SYM_LOCAL (info, h))
3654 {
3655 if (addend && r_type == R_FRV_FUNCDESC_VALUE)
3656 {
3657 info->callbacks->einfo
3658 (_("%H: R_FRV_FUNCDESC_VALUE"
3659 " references dynamic symbol with nonzero addend\n"),
3660 input_bfd, input_section, rel->r_offset);
3661 return FALSE;
3662 }
3663 dynindx = h->dynindx;
3664 }
3665 else
3666 {
3667 if (h)
3668 addend += h->root.u.def.value;
3669 else
3670 addend += sym->st_value;
3671 if (osec)
3672 addend += osec->output_offset;
3673 if (osec && osec->output_section
3674 && ! bfd_is_abs_section (osec->output_section)
3675 && ! bfd_is_und_section (osec->output_section))
3676 dynindx = elf_section_data (osec->output_section)->dynindx;
3677 else
3678 dynindx = 0;
3679 }
3680
3681 /* If we're linking an executable at a fixed address, we
3682 can omit the dynamic relocation as long as the symbol
3683 is defined in the current link unit (which is implied
3684 by its output section not being NULL). */
3685 if (bfd_link_pde (info)
3686 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3687 {
3688 if (osec)
3689 addend += osec->output_section->vma;
3690 if (IS_FDPIC (input_bfd)
3691 && (bfd_get_section_flags (output_bfd,
3692 input_section->output_section)
3693 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3694 {
3695 if (_frvfdpic_osec_readonly_p (output_bfd,
3696 input_section
3697 ->output_section))
3698 {
3699 info->callbacks->einfo
3700 (_("%H: cannot emit fixups in read-only section\n"),
3701 input_bfd, input_section, rel->r_offset);
3702 return FALSE;
3703 }
3704 if (!h || h->root.type != bfd_link_hash_undefweak)
3705 {
3706 bfd_vma offset = _bfd_elf_section_offset
3707 (output_bfd, info,
3708 input_section, rel->r_offset);
3709
3710 if (offset != (bfd_vma)-1)
3711 {
3712 _frvfdpic_add_rofixup (output_bfd,
3713 frvfdpic_gotfixup_section
3714 (info),
3715 offset + input_section
3716 ->output_section->vma
3717 + input_section->output_offset,
3718 picrel);
3719 if (r_type == R_FRV_FUNCDESC_VALUE)
3720 _frvfdpic_add_rofixup
3721 (output_bfd,
3722 frvfdpic_gotfixup_section (info),
3723 offset
3724 + input_section->output_section->vma
3725 + input_section->output_offset + 4, picrel);
3726 }
3727 }
3728 }
3729 }
3730 else
3731 {
3732 if ((bfd_get_section_flags (output_bfd,
3733 input_section->output_section)
3734 & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3735 {
3736 bfd_vma offset;
3737
3738 if (_frvfdpic_osec_readonly_p (output_bfd,
3739 input_section
3740 ->output_section))
3741 {
3742 info->callbacks->einfo
3743 (_("%H: cannot emit dynamic relocations"
3744 " in read-only section\n"),
3745 input_bfd, input_section, rel->r_offset);
3746 return FALSE;
3747 }
3748
3749 offset = _bfd_elf_section_offset
3750 (output_bfd, info,
3751 input_section, rel->r_offset);
3752
3753 if (offset != (bfd_vma)-1)
3754 _frvfdpic_add_dyn_reloc (output_bfd,
3755 frvfdpic_gotrel_section (info),
3756 offset + input_section
3757 ->output_section->vma
3758 + input_section->output_offset,
3759 r_type, dynindx, addend, picrel);
3760 }
3761 else if (osec)
3762 addend += osec->output_section->vma;
3763 /* We want the addend in-place because dynamic
3764 relocations are REL. Setting relocation to it
3765 should arrange for it to be installed. */
3766 relocation = addend - rel->r_addend;
3767 }
3768
3769 if (r_type == R_FRV_FUNCDESC_VALUE)
3770 {
3771 /* If we've omitted the dynamic relocation, just emit
3772 the fixed addresses of the symbol and of the local
3773 GOT base offset. */
3774 if (bfd_link_pde (info)
3775 && (!h || FRVFDPIC_SYM_LOCAL (info, h)))
3776 bfd_put_32 (output_bfd,
3777 frvfdpic_got_section (info)->output_section->vma
3778 + frvfdpic_got_section (info)->output_offset
3779 + frvfdpic_got_initial_offset (info),
3780 contents + rel->r_offset + 4);
3781 else
3782 /* A function descriptor used for lazy or local
3783 resolving is initialized such that its high word
3784 contains the output section index in which the
3785 PLT entries are located, and the low word
3786 contains the offset of the lazy PLT entry entry
3787 point into that section. */
3788 bfd_put_32 (output_bfd,
3789 h && ! FRVFDPIC_SYM_LOCAL (info, h)
3790 ? 0
3791 : _frvfdpic_osec_to_segment (output_bfd,
3792 sec
3793 ->output_section),
3794 contents + rel->r_offset + 4);
3795 }
3796 }
3797 check_segment[0] = check_segment[1] = got_segment;
3798 break;
3799
3800 case R_FRV_GPREL12:
3801 case R_FRV_GPRELU12:
3802 case R_FRV_GPREL32:
3803 case R_FRV_GPRELHI:
3804 case R_FRV_GPRELLO:
3805 check_segment[0] = gprel_segment;
3806 check_segment[1] = sec
3807 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3808 : (unsigned)-1;
3809 break;
3810
3811 case R_FRV_GETTLSOFF:
3812 relocation = frvfdpic_plt_section (info)->output_section->vma
3813 + frvfdpic_plt_section (info)->output_offset
3814 + picrel->tlsplt_entry;
3815 BFD_ASSERT (picrel->tlsplt_entry != (bfd_vma)-1
3816 && picrel->tlsdesc_entry);
3817 check_segment[0] = isec_segment;
3818 check_segment[1] = plt_segment;
3819 break;
3820
3821 case R_FRV_GOTTLSDESC12:
3822 case R_FRV_GOTTLSDESCHI:
3823 case R_FRV_GOTTLSDESCLO:
3824 BFD_ASSERT (picrel->tlsdesc_entry);
3825 relocation = picrel->tlsdesc_entry;
3826 check_segment[0] = tls_segment;
3827 check_segment[1] = sec
3828 && ! bfd_is_abs_section (sec)
3829 && ! bfd_is_und_section (sec)
3830 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3831 : tls_segment;
3832 break;
3833
3834 case R_FRV_TLSMOFF12:
3835 case R_FRV_TLSMOFFHI:
3836 case R_FRV_TLSMOFFLO:
3837 case R_FRV_TLSMOFF:
3838 check_segment[0] = tls_segment;
3839 if (! sec)
3840 check_segment[1] = -1;
3841 else if (bfd_is_abs_section (sec)
3842 || bfd_is_und_section (sec))
3843 {
3844 relocation = 0;
3845 check_segment[1] = tls_segment;
3846 }
3847 else if (sec->output_section)
3848 {
3849 relocation -= tls_biased_base (info);
3850 check_segment[1] =
3851 _frvfdpic_osec_to_segment (output_bfd, sec->output_section);
3852 }
3853 else
3854 check_segment[1] = -1;
3855 break;
3856
3857 case R_FRV_GOTTLSOFF12:
3858 case R_FRV_GOTTLSOFFHI:
3859 case R_FRV_GOTTLSOFFLO:
3860 BFD_ASSERT (picrel->tlsoff_entry);
3861 relocation = picrel->tlsoff_entry;
3862 check_segment[0] = tls_segment;
3863 check_segment[1] = sec
3864 && ! bfd_is_abs_section (sec)
3865 && ! bfd_is_und_section (sec)
3866 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3867 : tls_segment;
3868 break;
3869
3870 case R_FRV_TLSDESC_VALUE:
3871 case R_FRV_TLSOFF:
3872 /* These shouldn't be present in input object files. */
3873 check_segment[0] = check_segment[1] = isec_segment;
3874 break;
3875
3876 case R_FRV_TLSDESC_RELAX:
3877 case R_FRV_GETTLSOFF_RELAX:
3878 case R_FRV_TLSOFF_RELAX:
3879 /* These are just annotations for relaxation, nothing to do
3880 here. */
3881 continue;
3882
3883 default:
3884 check_segment[0] = isec_segment;
3885 check_segment[1] = sec
3886 ? _frvfdpic_osec_to_segment (output_bfd, sec->output_section)
3887 : (unsigned)-1;
3888 break;
3889 }
3890
3891 if (check_segment[0] != check_segment[1] && IS_FDPIC (output_bfd))
3892 {
3893 /* If you take this out, remove the #error from fdpic-static-6.d
3894 in the ld testsuite. */
3895 /* This helps catch problems in GCC while we can't do more
3896 than static linking. The idea is to test whether the
3897 input file basename is crt0.o only once. */
3898 if (silence_segment_error == 1)
3899 silence_segment_error =
3900 (strlen (input_bfd->filename) == 6
3901 && filename_cmp (input_bfd->filename, "crt0.o") == 0)
3902 || (strlen (input_bfd->filename) > 6
3903 && filename_cmp (input_bfd->filename
3904 + strlen (input_bfd->filename) - 7,
3905 "/crt0.o") == 0)
3906 ? -1 : 0;
3907 if (!silence_segment_error
3908 /* We don't want duplicate errors for undefined
3909 symbols. */
3910 && !(picrel && picrel->symndx == -1
3911 && picrel->d.h->root.type == bfd_link_hash_undefined))
3912 {
3913 info->callbacks->einfo
3914 (_("%H: reloc against `%s' references a different segment\n"),
3915 input_bfd, input_section, rel->r_offset, name);
3916 }
3917 if (!silence_segment_error && bfd_link_pic (info))
3918 return FALSE;
3919 elf_elfheader (output_bfd)->e_flags |= EF_FRV_PIC;
3920 }
3921
3922 switch (r_type)
3923 {
3924 case R_FRV_GOTOFFHI:
3925 case R_FRV_TLSMOFFHI:
3926 /* We need the addend to be applied before we shift the
3927 value right. */
3928 relocation += rel->r_addend;
3929 /* Fall through. */
3930 case R_FRV_GOTHI:
3931 case R_FRV_FUNCDESC_GOTHI:
3932 case R_FRV_FUNCDESC_GOTOFFHI:
3933 case R_FRV_GOTTLSOFFHI:
3934 case R_FRV_GOTTLSDESCHI:
3935 relocation >>= 16;
3936 /* Fall through. */
3937
3938 case R_FRV_GOTLO:
3939 case R_FRV_FUNCDESC_GOTLO:
3940 case R_FRV_GOTOFFLO:
3941 case R_FRV_FUNCDESC_GOTOFFLO:
3942 case R_FRV_GOTTLSOFFLO:
3943 case R_FRV_GOTTLSDESCLO:
3944 case R_FRV_TLSMOFFLO:
3945 relocation &= 0xffff;
3946 break;
3947
3948 default:
3949 break;
3950 }
3951
3952 switch (r_type)
3953 {
3954 case R_FRV_LABEL24:
3955 if (! IS_FDPIC (output_bfd) || ! picrel->plt)
3956 break;
3957 /* Fall through. */
3958
3959 /* When referencing a GOT entry, a function descriptor or a
3960 PLT, we don't want the addend to apply to the reference,
3961 but rather to the referenced symbol. The actual entry
3962 will have already been created taking the addend into
3963 account, so cancel it out here. */
3964 case R_FRV_GOT12:
3965 case R_FRV_GOTHI:
3966 case R_FRV_GOTLO:
3967 case R_FRV_FUNCDESC_GOT12:
3968 case R_FRV_FUNCDESC_GOTHI:
3969 case R_FRV_FUNCDESC_GOTLO:
3970 case R_FRV_FUNCDESC_GOTOFF12:
3971 case R_FRV_FUNCDESC_GOTOFFHI:
3972 case R_FRV_FUNCDESC_GOTOFFLO:
3973 case R_FRV_GETTLSOFF:
3974 case R_FRV_GOTTLSDESC12:
3975 case R_FRV_GOTTLSDESCHI:
3976 case R_FRV_GOTTLSDESCLO:
3977 case R_FRV_GOTTLSOFF12:
3978 case R_FRV_GOTTLSOFFHI:
3979 case R_FRV_GOTTLSOFFLO:
3980 /* Note that we only want GOTOFFHI, not GOTOFFLO or GOTOFF12
3981 here, since we do want to apply the addend to the others.
3982 Note that we've applied the addend to GOTOFFHI before we
3983 shifted it right. */
3984 case R_FRV_GOTOFFHI:
3985 case R_FRV_TLSMOFFHI:
3986 relocation -= rel->r_addend;
3987 break;
3988
3989 default:
3990 break;
3991 }
3992
3993 if (r_type == R_FRV_HI16)
3994 r = elf32_frv_relocate_hi16 (input_bfd, rel, contents, relocation);
3995
3996 else if (r_type == R_FRV_LO16)
3997 r = elf32_frv_relocate_lo16 (input_bfd, rel, contents, relocation);
3998
3999 else if (r_type == R_FRV_LABEL24 || r_type == R_FRV_GETTLSOFF)
4000 r = elf32_frv_relocate_label24 (input_bfd, input_section, rel,
4001 contents, relocation);
4002
4003 else if (r_type == R_FRV_GPREL12)
4004 r = elf32_frv_relocate_gprel12 (info, input_bfd, input_section, rel,
4005 contents, relocation);
4006
4007 else if (r_type == R_FRV_GPRELU12)
4008 r = elf32_frv_relocate_gprelu12 (info, input_bfd, input_section, rel,
4009 contents, relocation);
4010
4011 else if (r_type == R_FRV_GPRELLO)
4012 r = elf32_frv_relocate_gprello (info, input_bfd, input_section, rel,
4013 contents, relocation);
4014
4015 else if (r_type == R_FRV_GPRELHI)
4016 r = elf32_frv_relocate_gprelhi (info, input_bfd, input_section, rel,
4017 contents, relocation);
4018
4019 else if (r_type == R_FRV_TLSOFF
4020 || r_type == R_FRV_TLSDESC_VALUE)
4021 r = bfd_reloc_notsupported;
4022
4023 else
4024 r = frv_final_link_relocate (howto, input_bfd, input_section, contents,
4025 rel, relocation);
4026
4027 if (r != bfd_reloc_ok)
4028 {
4029 const char * msg = (const char *) NULL;
4030
4031 switch (r)
4032 {
4033 case bfd_reloc_overflow:
4034 r = info->callbacks->reloc_overflow
4035 (info, (h ? &h->root : NULL), name, howto->name,
4036 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4037 break;
4038
4039 case bfd_reloc_undefined:
4040 r = info->callbacks->undefined_symbol
4041 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4042 break;
4043
4044 case bfd_reloc_outofrange:
4045 msg = _("internal error: out of range error");
4046 break;
4047
4048 case bfd_reloc_notsupported:
4049 msg = _("internal error: unsupported relocation error");
4050 break;
4051
4052 case bfd_reloc_dangerous:
4053 msg = _("internal error: dangerous relocation");
4054 break;
4055
4056 default:
4057 msg = _("internal error: unknown error");
4058 break;
4059 }
4060
4061 if (msg)
4062 {
4063 info->callbacks->einfo
4064 (_("%H: reloc against `%s': %s\n"),
4065 input_bfd, input_section, rel->r_offset, name, msg);
4066 return FALSE;
4067 }
4068
4069 if (! r)
4070 return FALSE;
4071 }
4072 }
4073
4074 return TRUE;
4075 }
4076 \f
4077 /* Return the section that should be marked against GC for a given
4078 relocation. */
4079
4080 static asection *
4081 elf32_frv_gc_mark_hook (asection *sec,
4082 struct bfd_link_info *info,
4083 Elf_Internal_Rela *rel,
4084 struct elf_link_hash_entry *h,
4085 Elf_Internal_Sym *sym)
4086 {
4087 if (h != NULL)
4088 switch (ELF32_R_TYPE (rel->r_info))
4089 {
4090 case R_FRV_GNU_VTINHERIT:
4091 case R_FRV_GNU_VTENTRY:
4092 return NULL;
4093 }
4094
4095 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
4096 }
4097 \f
4098 /* Hook called by the linker routine which adds symbols from an object
4099 file. We use it to put .comm items in .scomm, and not .comm. */
4100
4101 static bfd_boolean
4102 elf32_frv_add_symbol_hook (bfd *abfd,
4103 struct bfd_link_info *info,
4104 Elf_Internal_Sym *sym,
4105 const char **namep ATTRIBUTE_UNUSED,
4106 flagword *flagsp ATTRIBUTE_UNUSED,
4107 asection **secp,
4108 bfd_vma *valp)
4109 {
4110 if (sym->st_shndx == SHN_COMMON
4111 && !bfd_link_relocatable (info)
4112 && (int)sym->st_size <= (int)bfd_get_gp_size (abfd))
4113 {
4114 /* Common symbols less than or equal to -G nn bytes are
4115 automatically put into .sbss. */
4116
4117 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
4118
4119 if (scomm == NULL)
4120 {
4121 scomm = bfd_make_section_with_flags (abfd, ".scommon",
4122 (SEC_ALLOC
4123 | SEC_IS_COMMON
4124 | SEC_LINKER_CREATED));
4125 if (scomm == NULL)
4126 return FALSE;
4127 }
4128
4129 *secp = scomm;
4130 *valp = sym->st_size;
4131 }
4132
4133 return TRUE;
4134 }
4135
4136 /* We need dynamic symbols for every section, since segments can
4137 relocate independently. */
4138 static bfd_boolean
4139 _frvfdpic_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
4140 struct bfd_link_info *info
4141 ATTRIBUTE_UNUSED,
4142 asection *p ATTRIBUTE_UNUSED)
4143 {
4144 switch (elf_section_data (p)->this_hdr.sh_type)
4145 {
4146 case SHT_PROGBITS:
4147 case SHT_NOBITS:
4148 /* If sh_type is yet undecided, assume it could be
4149 SHT_PROGBITS/SHT_NOBITS. */
4150 case SHT_NULL:
4151 return FALSE;
4152
4153 /* There shouldn't be section relative relocations
4154 against any other section. */
4155 default:
4156 return TRUE;
4157 }
4158 }
4159
4160 /* Create a .got section, as well as its additional info field. This
4161 is almost entirely copied from
4162 elflink.c:_bfd_elf_create_got_section(). */
4163
4164 static bfd_boolean
4165 _frv_create_got_section (bfd *abfd, struct bfd_link_info *info)
4166 {
4167 flagword flags, pltflags;
4168 asection *s;
4169 struct elf_link_hash_entry *h;
4170 struct bfd_link_hash_entry *bh;
4171 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4172 int ptralign;
4173 int offset;
4174
4175 /* This function may be called more than once. */
4176 s = bfd_get_linker_section (abfd, ".got");
4177 if (s != NULL)
4178 return TRUE;
4179
4180 /* Machine specific: although pointers are 32-bits wide, we want the
4181 GOT to be aligned to a 64-bit boundary, such that function
4182 descriptors in it can be accessed with 64-bit loads and
4183 stores. */
4184 ptralign = 3;
4185
4186 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4187 | SEC_LINKER_CREATED);
4188 pltflags = flags;
4189
4190 s = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
4191 if (s == NULL
4192 || !bfd_set_section_alignment (abfd, s, ptralign))
4193 return FALSE;
4194
4195 if (bed->want_got_plt)
4196 {
4197 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
4198 if (s == NULL
4199 || !bfd_set_section_alignment (abfd, s, ptralign))
4200 return FALSE;
4201 }
4202
4203 if (bed->want_got_sym)
4204 {
4205 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
4206 (or .got.plt) section. We don't do this in the linker script
4207 because we don't want to define the symbol if we are not creating
4208 a global offset table. */
4209 h = _bfd_elf_define_linkage_sym (abfd, info, s, "_GLOBAL_OFFSET_TABLE_");
4210 elf_hash_table (info)->hgot = h;
4211 if (h == NULL)
4212 return FALSE;
4213
4214 /* Machine-specific: we want the symbol for executables as
4215 well. */
4216 if (! bfd_elf_link_record_dynamic_symbol (info, h))
4217 return FALSE;
4218 }
4219
4220 /* The first bit of the global offset table is the header. */
4221 s->size += bed->got_header_size;
4222
4223 /* This is the machine-specific part. Create and initialize section
4224 data for the got. */
4225 if (IS_FDPIC (abfd))
4226 {
4227 frvfdpic_got_section (info) = s;
4228 frvfdpic_relocs_info (info) = htab_try_create (1,
4229 frvfdpic_relocs_info_hash,
4230 frvfdpic_relocs_info_eq,
4231 (htab_del) NULL);
4232 if (! frvfdpic_relocs_info (info))
4233 return FALSE;
4234
4235 s = bfd_make_section_anyway_with_flags (abfd, ".rel.got",
4236 (flags | SEC_READONLY));
4237 if (s == NULL
4238 || ! bfd_set_section_alignment (abfd, s, 2))
4239 return FALSE;
4240
4241 frvfdpic_gotrel_section (info) = s;
4242
4243 /* Machine-specific. */
4244 s = bfd_make_section_anyway_with_flags (abfd, ".rofixup",
4245 (flags | SEC_READONLY));
4246 if (s == NULL
4247 || ! bfd_set_section_alignment (abfd, s, 2))
4248 return FALSE;
4249
4250 frvfdpic_gotfixup_section (info) = s;
4251 offset = -2048;
4252 flags = BSF_GLOBAL;
4253 }
4254 else
4255 {
4256 offset = 2048;
4257 flags = BSF_GLOBAL | BSF_WEAK;
4258 }
4259
4260 /* Define _gp in .rofixup, for FDPIC, or .got otherwise. If it
4261 turns out that we're linking with a different linker script, the
4262 linker script will override it. */
4263 bh = NULL;
4264 if (!(_bfd_generic_link_add_one_symbol
4265 (info, abfd, "_gp", flags, s, offset, (const char *) NULL, FALSE,
4266 bed->collect, &bh)))
4267 return FALSE;
4268 h = (struct elf_link_hash_entry *) bh;
4269 h->def_regular = 1;
4270 h->type = STT_OBJECT;
4271 /* h->other = STV_HIDDEN; */ /* Should we? */
4272
4273 /* Machine-specific: we want the symbol for executables as well. */
4274 if (IS_FDPIC (abfd) && ! bfd_elf_link_record_dynamic_symbol (info, h))
4275 return FALSE;
4276
4277 if (!IS_FDPIC (abfd))
4278 return TRUE;
4279
4280 /* FDPIC supports Thread Local Storage, and this may require a
4281 procedure linkage table for TLS PLT entries. */
4282
4283 /* This is mostly copied from
4284 elflink.c:_bfd_elf_create_dynamic_sections(). */
4285
4286 flags = pltflags;
4287 pltflags |= SEC_CODE;
4288 if (bed->plt_not_loaded)
4289 pltflags &= ~ (SEC_CODE | SEC_LOAD | SEC_HAS_CONTENTS);
4290 if (bed->plt_readonly)
4291 pltflags |= SEC_READONLY;
4292
4293 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
4294 if (s == NULL
4295 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
4296 return FALSE;
4297 /* FRV-specific: remember it. */
4298 frvfdpic_plt_section (info) = s;
4299
4300 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
4301 .plt section. */
4302 if (bed->want_plt_sym)
4303 {
4304 h = _bfd_elf_define_linkage_sym (abfd, info, s,
4305 "_PROCEDURE_LINKAGE_TABLE_");
4306 elf_hash_table (info)->hplt = h;
4307 if (h == NULL)
4308 return FALSE;
4309 }
4310
4311 /* FRV-specific: we want rel relocations for the plt. */
4312 s = bfd_make_section_anyway_with_flags (abfd, ".rel.plt",
4313 flags | SEC_READONLY);
4314 if (s == NULL
4315 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4316 return FALSE;
4317 /* FRV-specific: remember it. */
4318 frvfdpic_pltrel_section (info) = s;
4319
4320 return TRUE;
4321 }
4322
4323 /* Make sure the got and plt sections exist, and that our pointers in
4324 the link hash table point to them. */
4325
4326 static bfd_boolean
4327 elf32_frvfdpic_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
4328 {
4329 /* This is mostly copied from
4330 elflink.c:_bfd_elf_create_dynamic_sections(). */
4331 flagword flags;
4332 asection *s;
4333 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
4334
4335 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
4336 | SEC_LINKER_CREATED);
4337
4338 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
4339 .rel[a].bss sections. */
4340
4341 /* FRV-specific: we want to create the GOT and the PLT in the FRV
4342 way. */
4343 if (! _frv_create_got_section (abfd, info))
4344 return FALSE;
4345
4346 /* FRV-specific: make sure we created everything we wanted. */
4347 BFD_ASSERT (frvfdpic_got_section (info) && frvfdpic_gotrel_section (info)
4348 && frvfdpic_gotfixup_section (info)
4349 && frvfdpic_plt_section (info)
4350 && frvfdpic_pltrel_section (info));
4351
4352 if (bed->want_dynbss)
4353 {
4354 /* The .dynbss section is a place to put symbols which are defined
4355 by dynamic objects, are referenced by regular objects, and are
4356 not functions. We must allocate space for them in the process
4357 image and use a R_*_COPY reloc to tell the dynamic linker to
4358 initialize them at run time. The linker script puts the .dynbss
4359 section into the .bss section of the final image. */
4360 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
4361 SEC_ALLOC | SEC_LINKER_CREATED);
4362 if (s == NULL)
4363 return FALSE;
4364
4365 /* The .rel[a].bss section holds copy relocs. This section is not
4366 normally needed. We need to create it here, though, so that the
4367 linker will map it to an output section. We can't just create it
4368 only if we need it, because we will not know whether we need it
4369 until we have seen all the input files, and the first time the
4370 main linker code calls BFD after examining all the input files
4371 (size_dynamic_sections) the input sections have already been
4372 mapped to the output sections. If the section turns out not to
4373 be needed, we can discard it later. We will never need this
4374 section when generating a shared object, since they do not use
4375 copy relocs. */
4376 if (! bfd_link_pic (info))
4377 {
4378 s = bfd_make_section_anyway_with_flags (abfd,
4379 (bed->default_use_rela_p
4380 ? ".rela.bss" : ".rel.bss"),
4381 flags | SEC_READONLY);
4382 if (s == NULL
4383 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
4384 return FALSE;
4385 }
4386 }
4387
4388 return TRUE;
4389 }
4390
4391 /* Compute the total GOT and PLT size required by each symbol in each
4392 range. Symbols may require up to 4 words in the GOT: an entry
4393 pointing to the symbol, an entry pointing to its function
4394 descriptor, and a private function descriptors taking two
4395 words. */
4396
4397 static void
4398 _frvfdpic_count_nontls_entries (struct frvfdpic_relocs_info *entry,
4399 struct _frvfdpic_dynamic_got_info *dinfo)
4400 {
4401 /* Allocate space for a GOT entry pointing to the symbol. */
4402 if (entry->got12)
4403 dinfo->got12 += 4;
4404 else if (entry->gotlos)
4405 dinfo->gotlos += 4;
4406 else if (entry->gothilo)
4407 dinfo->gothilo += 4;
4408 else
4409 entry->relocs32--;
4410 entry->relocs32++;
4411
4412 /* Allocate space for a GOT entry pointing to the function
4413 descriptor. */
4414 if (entry->fdgot12)
4415 dinfo->got12 += 4;
4416 else if (entry->fdgotlos)
4417 dinfo->gotlos += 4;
4418 else if (entry->fdgothilo)
4419 dinfo->gothilo += 4;
4420 else
4421 entry->relocsfd--;
4422 entry->relocsfd++;
4423
4424 /* Decide whether we need a PLT entry, a function descriptor in the
4425 GOT, and a lazy PLT entry for this symbol. */
4426 entry->plt = entry->call
4427 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4428 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4429 entry->privfd = entry->plt
4430 || entry->fdgoff12 || entry->fdgofflos || entry->fdgoffhilo
4431 || ((entry->fd || entry->fdgot12 || entry->fdgotlos || entry->fdgothilo)
4432 && (entry->symndx != -1
4433 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h)));
4434 entry->lazyplt = entry->privfd
4435 && entry->symndx == -1 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4436 && ! (dinfo->info->flags & DF_BIND_NOW)
4437 && elf_hash_table (dinfo->info)->dynamic_sections_created;
4438
4439 /* Allocate space for a function descriptor. */
4440 if (entry->fdgoff12)
4441 dinfo->fd12 += 8;
4442 else if (entry->fdgofflos)
4443 dinfo->fdlos += 8;
4444 else if (entry->privfd && entry->plt)
4445 dinfo->fdplt += 8;
4446 else if (entry->privfd)
4447 dinfo->fdhilo += 8;
4448 else
4449 entry->relocsfdv--;
4450 entry->relocsfdv++;
4451
4452 if (entry->lazyplt)
4453 dinfo->lzplt += 8;
4454 }
4455
4456 /* Compute the total GOT size required by each TLS symbol in each
4457 range. Symbols may require up to 5 words in the GOT: an entry
4458 holding the TLS offset for the symbol, and an entry with a full TLS
4459 descriptor taking 4 words. */
4460
4461 static void
4462 _frvfdpic_count_tls_entries (struct frvfdpic_relocs_info *entry,
4463 struct _frvfdpic_dynamic_got_info *dinfo,
4464 bfd_boolean subtract)
4465 {
4466 const int l = subtract ? -1 : 1;
4467
4468 /* Allocate space for a GOT entry with the TLS offset of the
4469 symbol. */
4470 if (entry->tlsoff12)
4471 dinfo->got12 += 4 * l;
4472 else if (entry->tlsofflos)
4473 dinfo->gotlos += 4 * l;
4474 else if (entry->tlsoffhilo)
4475 dinfo->gothilo += 4 * l;
4476 else
4477 entry->relocstlsoff -= l;
4478 entry->relocstlsoff += l;
4479
4480 /* If there's any TLSOFF relocation, mark the output file as not
4481 suitable for dlopening. This mark will remain even if we relax
4482 all such relocations, but this is not a problem, since we'll only
4483 do so for executables, and we definitely don't want anyone
4484 dlopening executables. */
4485 if (entry->relocstlsoff)
4486 dinfo->info->flags |= DF_STATIC_TLS;
4487
4488 /* Allocate space for a TLS descriptor. */
4489 if (entry->tlsdesc12)
4490 dinfo->tlsd12 += 8 * l;
4491 else if (entry->tlsdesclos)
4492 dinfo->tlsdlos += 8 * l;
4493 else if (entry->tlsplt)
4494 dinfo->tlsdplt += 8 * l;
4495 else if (entry->tlsdeschilo)
4496 dinfo->tlsdhilo += 8 * l;
4497 else
4498 entry->relocstlsd -= l;
4499 entry->relocstlsd += l;
4500 }
4501
4502 /* Compute the number of dynamic relocations and fixups that a symbol
4503 requires, and add (or subtract) from the grand and per-symbol
4504 totals. */
4505
4506 static void
4507 _frvfdpic_count_relocs_fixups (struct frvfdpic_relocs_info *entry,
4508 struct _frvfdpic_dynamic_got_info *dinfo,
4509 bfd_boolean subtract)
4510 {
4511 bfd_vma relocs = 0, fixups = 0, tlsrets = 0;
4512
4513 if (!bfd_link_pde (dinfo->info))
4514 {
4515 relocs = entry->relocs32 + entry->relocsfd + entry->relocsfdv
4516 + entry->relocstlsd;
4517
4518 /* In the executable, TLS relocations to symbols that bind
4519 locally (including those that resolve to global TLS offsets)
4520 are resolved immediately, without any need for fixups or
4521 dynamic relocations. In shared libraries, however, we must
4522 emit dynamic relocations even for local symbols, because we
4523 don't know the module id the library is going to get at
4524 run-time, nor its TLS base offset. */
4525 if (!bfd_link_executable (dinfo->info)
4526 || (entry->symndx == -1
4527 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4528 relocs += entry->relocstlsoff;
4529 }
4530 else
4531 {
4532 if (entry->symndx != -1 || FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h))
4533 {
4534 if (entry->symndx != -1
4535 || entry->d.h->root.type != bfd_link_hash_undefweak)
4536 fixups += entry->relocs32 + 2 * entry->relocsfdv;
4537 fixups += entry->relocstlsd;
4538 tlsrets += entry->relocstlsd;
4539 }
4540 else
4541 {
4542 relocs += entry->relocs32 + entry->relocsfdv
4543 + entry->relocstlsoff + entry->relocstlsd;
4544 }
4545
4546 if (entry->symndx != -1
4547 || FRVFDPIC_FUNCDESC_LOCAL (dinfo->info, entry->d.h))
4548 {
4549 if (entry->symndx != -1
4550 || entry->d.h->root.type != bfd_link_hash_undefweak)
4551 fixups += entry->relocsfd;
4552 }
4553 else
4554 relocs += entry->relocsfd;
4555 }
4556
4557 if (subtract)
4558 {
4559 relocs = - relocs;
4560 fixups = - fixups;
4561 tlsrets = - tlsrets;
4562 }
4563
4564 entry->dynrelocs += relocs;
4565 entry->fixups += fixups;
4566 dinfo->relocs += relocs;
4567 dinfo->fixups += fixups;
4568 dinfo->tls_ret_refs += tlsrets;
4569 }
4570
4571 /* Look for opportunities to relax TLS relocations. We can assume
4572 we're linking the main executable or a static-tls library, since
4573 otherwise we wouldn't have got here. When relaxing, we have to
4574 first undo any previous accounting of TLS uses of fixups, dynamic
4575 relocations, GOT and PLT entries. */
4576
4577 static void
4578 _frvfdpic_relax_tls_entries (struct frvfdpic_relocs_info *entry,
4579 struct _frvfdpic_dynamic_got_info *dinfo,
4580 bfd_boolean relaxing)
4581 {
4582 bfd_boolean changed = ! relaxing;
4583
4584 BFD_ASSERT (bfd_link_executable (dinfo->info)
4585 || (dinfo->info->flags & DF_STATIC_TLS));
4586
4587 if (entry->tlsdesc12 || entry->tlsdesclos || entry->tlsdeschilo)
4588 {
4589 if (! changed)
4590 {
4591 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4592 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4593 changed = TRUE;
4594 }
4595
4596 /* When linking an executable, we can always decay GOTTLSDESC to
4597 TLSMOFF, if the symbol is local, or GOTTLSOFF, otherwise.
4598 When linking a static-tls shared library, using TLSMOFF is
4599 not an option, but we can still use GOTTLSOFF. When decaying
4600 to GOTTLSOFF, we must keep the GOT entry in range. We know
4601 it has to fit because we'll be trading the 4 words of hte TLS
4602 descriptor for a single word in the same range. */
4603 if (! bfd_link_executable (dinfo->info)
4604 || (entry->symndx == -1
4605 && ! FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)))
4606 {
4607 entry->tlsoff12 |= entry->tlsdesc12;
4608 entry->tlsofflos |= entry->tlsdesclos;
4609 entry->tlsoffhilo |= entry->tlsdeschilo;
4610 }
4611
4612 entry->tlsdesc12 = entry->tlsdesclos = entry->tlsdeschilo = 0;
4613 }
4614
4615 /* We can only decay TLSOFFs or call #gettlsoff to TLSMOFF in the
4616 main executable. We have to check whether the symbol's TLSOFF is
4617 in range for a setlos. For symbols with a hash entry, we can
4618 determine exactly what to do; for others locals, we don't have
4619 addresses handy, so we use the size of the TLS section as an
4620 approximation. If we get it wrong, we'll retain a GOT entry
4621 holding the TLS offset (without dynamic relocations or fixups),
4622 but we'll still optimize away the loads from it. Since TLS sizes
4623 are generally very small, it's probably not worth attempting to
4624 do better than this. */
4625 if ((entry->tlsplt
4626 || entry->tlsoff12 || entry->tlsofflos || entry->tlsoffhilo)
4627 && bfd_link_executable (dinfo->info) && relaxing
4628 && ((entry->symndx == -1
4629 && FRVFDPIC_SYM_LOCAL (dinfo->info, entry->d.h)
4630 /* The above may hold for an undefweak TLS symbol, so make
4631 sure we don't have this case before accessing def.value
4632 and def.section. */
4633 && (entry->d.h->root.type == bfd_link_hash_undefweak
4634 || (bfd_vma)(entry->d.h->root.u.def.value
4635 + (entry->d.h->root.u.def.section
4636 ->output_section->vma)
4637 + entry->d.h->root.u.def.section->output_offset
4638 + entry->addend
4639 - tls_biased_base (dinfo->info)
4640 + 32768) < (bfd_vma)65536))
4641 || (entry->symndx != -1
4642 && (elf_hash_table (dinfo->info)->tls_sec->size
4643 + entry->addend < 32768 + FRVFDPIC_TLS_BIAS))))
4644 {
4645 if (! changed)
4646 {
4647 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4648 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4649 changed = TRUE;
4650 }
4651
4652 entry->tlsplt =
4653 entry->tlsoff12 = entry->tlsofflos = entry->tlsoffhilo = 0;
4654 }
4655
4656 /* We can decay `call #gettlsoff' to a ldi #tlsoff if we already
4657 have a #gottlsoff12 relocation for this entry, or if we can fit
4658 one more in the 12-bit (and 16-bit) ranges. */
4659 if (entry->tlsplt
4660 && (entry->tlsoff12
4661 || (relaxing
4662 && dinfo->got12 + dinfo->fd12 + dinfo->tlsd12 <= 4096 - 12 - 4
4663 && (dinfo->got12 + dinfo->fd12 + dinfo->tlsd12
4664 + dinfo->gotlos + dinfo->fdlos + dinfo->tlsdlos
4665 <= 65536 - 12 - 4))))
4666 {
4667 if (! changed)
4668 {
4669 _frvfdpic_count_relocs_fixups (entry, dinfo, TRUE);
4670 _frvfdpic_count_tls_entries (entry, dinfo, TRUE);
4671 changed = TRUE;
4672 }
4673
4674 entry->tlsoff12 = 1;
4675 entry->tlsplt = 0;
4676 }
4677
4678 if (changed)
4679 {
4680 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4681 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4682 }
4683
4684 return;
4685 }
4686
4687 /* Compute the total GOT and PLT size required by each symbol in each range. *
4688 Symbols may require up to 4 words in the GOT: an entry pointing to
4689 the symbol, an entry pointing to its function descriptor, and a
4690 private function descriptors taking two words. */
4691
4692 static int
4693 _frvfdpic_count_got_plt_entries (void **entryp, void *dinfo_)
4694 {
4695 struct frvfdpic_relocs_info *entry = *entryp;
4696 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
4697
4698 _frvfdpic_count_nontls_entries (entry, dinfo);
4699
4700 if (bfd_link_executable (dinfo->info)
4701 || (dinfo->info->flags & DF_STATIC_TLS))
4702 _frvfdpic_relax_tls_entries (entry, dinfo, FALSE);
4703 else
4704 {
4705 _frvfdpic_count_tls_entries (entry, dinfo, FALSE);
4706 _frvfdpic_count_relocs_fixups (entry, dinfo, FALSE);
4707 }
4708
4709 return 1;
4710 }
4711
4712 /* Determine the positive and negative ranges to be used by each
4713 offset range in the GOT. FDCUR and CUR, that must be aligned to a
4714 double-word boundary, are the minimum (negative) and maximum
4715 (positive) GOT offsets already used by previous ranges, except for
4716 an ODD entry that may have been left behind. GOT and FD indicate
4717 the size of GOT entries and function descriptors that must be
4718 placed within the range from -WRAP to WRAP. If there's room left,
4719 up to FDPLT bytes should be reserved for additional function
4720 descriptors. */
4721
4722 inline static bfd_signed_vma
4723 _frvfdpic_compute_got_alloc_data (struct _frvfdpic_dynamic_got_alloc_data *gad,
4724 bfd_signed_vma fdcur,
4725 bfd_signed_vma odd,
4726 bfd_signed_vma cur,
4727 bfd_vma got,
4728 bfd_vma fd,
4729 bfd_vma fdplt,
4730 bfd_vma tlsd,
4731 bfd_vma tlsdplt,
4732 bfd_vma wrap)
4733 {
4734 bfd_signed_vma wrapmin = -wrap;
4735 const bfd_vma tdescsz = 8;
4736
4737 /* Start at the given initial points. */
4738 gad->fdcur = fdcur;
4739 gad->cur = cur;
4740
4741 /* If we had an incoming odd word and we have any got entries that
4742 are going to use it, consume it, otherwise leave gad->odd at
4743 zero. We might force gad->odd to zero and return the incoming
4744 odd such that it is used by the next range, but then GOT entries
4745 might appear to be out of order and we wouldn't be able to
4746 shorten the GOT by one word if it turns out to end with an
4747 unpaired GOT entry. */
4748 if (odd && got)
4749 {
4750 gad->odd = odd;
4751 got -= 4;
4752 odd = 0;
4753 }
4754 else
4755 gad->odd = 0;
4756
4757 /* If we're left with an unpaired GOT entry, compute its location
4758 such that we can return it. Otherwise, if got doesn't require an
4759 odd number of words here, either odd was already zero in the
4760 block above, or it was set to zero because got was non-zero, or
4761 got was already zero. In the latter case, we want the value of
4762 odd to carry over to the return statement, so we don't want to
4763 reset odd unless the condition below is true. */
4764 if (got & 4)
4765 {
4766 odd = cur + got;
4767 got += 4;
4768 }
4769
4770 /* Compute the tentative boundaries of this range. */
4771 gad->max = cur + got;
4772 gad->min = fdcur - fd;
4773 gad->fdplt = 0;
4774
4775 /* If function descriptors took too much space, wrap some of them
4776 around. */
4777 if (gad->min < wrapmin)
4778 {
4779 gad->max += wrapmin - gad->min;
4780 gad->tmin = gad->min = wrapmin;
4781 }
4782
4783 /* If GOT entries took too much space, wrap some of them around.
4784 This may well cause gad->min to become lower than wrapmin. This
4785 will cause a relocation overflow later on, so we don't have to
4786 report it here . */
4787 if ((bfd_vma) gad->max > wrap)
4788 {
4789 gad->min -= gad->max - wrap;
4790 gad->max = wrap;
4791 }
4792
4793 /* Add TLS descriptors. */
4794 gad->tmax = gad->max + tlsd;
4795 gad->tmin = gad->min;
4796 gad->tlsdplt = 0;
4797
4798 /* If TLS descriptors took too much space, wrap an integral number
4799 of them around. */
4800 if ((bfd_vma) gad->tmax > wrap)
4801 {
4802 bfd_vma wrapsize = gad->tmax - wrap;
4803
4804 wrapsize += tdescsz / 2;
4805 wrapsize &= ~ tdescsz / 2;
4806
4807 gad->tmin -= wrapsize;
4808 gad->tmax -= wrapsize;
4809 }
4810
4811 /* If there is space left and we have function descriptors
4812 referenced in PLT entries that could take advantage of shorter
4813 offsets, place them now. */
4814 if (fdplt && gad->tmin > wrapmin)
4815 {
4816 bfd_vma fds;
4817
4818 if ((bfd_vma) (gad->tmin - wrapmin) < fdplt)
4819 fds = gad->tmin - wrapmin;
4820 else
4821 fds = fdplt;
4822
4823 fdplt -= fds;
4824 gad->min -= fds;
4825 gad->tmin -= fds;
4826 gad->fdplt += fds;
4827 }
4828
4829 /* If there is more space left, try to place some more function
4830 descriptors for PLT entries. */
4831 if (fdplt && (bfd_vma) gad->tmax < wrap)
4832 {
4833 bfd_vma fds;
4834
4835 if ((bfd_vma) (wrap - gad->tmax) < fdplt)
4836 fds = wrap - gad->tmax;
4837 else
4838 fds = fdplt;
4839
4840 fdplt -= fds;
4841 gad->max += fds;
4842 gad->tmax += fds;
4843 gad->fdplt += fds;
4844 }
4845
4846 /* If there is space left and we have TLS descriptors referenced in
4847 PLT entries that could take advantage of shorter offsets, place
4848 them now. */
4849 if (tlsdplt && gad->tmin > wrapmin)
4850 {
4851 bfd_vma tlsds;
4852
4853 if ((bfd_vma) (gad->tmin - wrapmin) < tlsdplt)
4854 tlsds = (gad->tmin - wrapmin) & ~ (tdescsz / 2);
4855 else
4856 tlsds = tlsdplt;
4857
4858 tlsdplt -= tlsds;
4859 gad->tmin -= tlsds;
4860 gad->tlsdplt += tlsds;
4861 }
4862
4863 /* If there is more space left, try to place some more TLS
4864 descriptors for PLT entries. Although we could try to fit an
4865 additional TLS descriptor with half of it just before before the
4866 wrap point and another right past the wrap point, this might
4867 cause us to run out of space for the next region, so don't do
4868 it. */
4869 if (tlsdplt && (bfd_vma) gad->tmax < wrap - tdescsz / 2)
4870 {
4871 bfd_vma tlsds;
4872
4873 if ((bfd_vma) (wrap - gad->tmax) < tlsdplt)
4874 tlsds = (wrap - gad->tmax) & ~ (tdescsz / 2);
4875 else
4876 tlsds = tlsdplt;
4877
4878 tlsdplt -= tlsds;
4879 gad->tmax += tlsds;
4880 gad->tlsdplt += tlsds;
4881 }
4882
4883 /* If odd was initially computed as an offset past the wrap point,
4884 wrap it around. */
4885 if (odd > gad->max)
4886 odd = gad->min + odd - gad->max;
4887
4888 /* _frvfdpic_get_got_entry() below will always wrap gad->cur if needed
4889 before returning, so do it here too. This guarantees that,
4890 should cur and fdcur meet at the wrap point, they'll both be
4891 equal to min. */
4892 if (gad->cur == gad->max)
4893 gad->cur = gad->min;
4894
4895 /* Ditto for _frvfdpic_get_tlsdesc_entry(). */
4896 gad->tcur = gad->max;
4897 if (gad->tcur == gad->tmax)
4898 gad->tcur = gad->tmin;
4899
4900 return odd;
4901 }
4902
4903 /* Compute the location of the next GOT entry, given the allocation
4904 data for a range. */
4905
4906 inline static bfd_signed_vma
4907 _frvfdpic_get_got_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4908 {
4909 bfd_signed_vma ret;
4910
4911 if (gad->odd)
4912 {
4913 /* If there was an odd word left behind, use it. */
4914 ret = gad->odd;
4915 gad->odd = 0;
4916 }
4917 else
4918 {
4919 /* Otherwise, use the word pointed to by cur, reserve the next
4920 as an odd word, and skip to the next pair of words, possibly
4921 wrapping around. */
4922 ret = gad->cur;
4923 gad->odd = gad->cur + 4;
4924 gad->cur += 8;
4925 if (gad->cur == gad->max)
4926 gad->cur = gad->min;
4927 }
4928
4929 return ret;
4930 }
4931
4932 /* Compute the location of the next function descriptor entry in the
4933 GOT, given the allocation data for a range. */
4934
4935 inline static bfd_signed_vma
4936 _frvfdpic_get_fd_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4937 {
4938 /* If we're at the bottom, wrap around, and only then allocate the
4939 next pair of words. */
4940 if (gad->fdcur == gad->min)
4941 gad->fdcur = gad->max;
4942 return gad->fdcur -= 8;
4943 }
4944
4945 /* Compute the location of the next TLS descriptor entry in the GOT,
4946 given the allocation data for a range. */
4947 inline static bfd_signed_vma
4948 _frvfdpic_get_tlsdesc_entry (struct _frvfdpic_dynamic_got_alloc_data *gad)
4949 {
4950 bfd_signed_vma ret;
4951
4952 ret = gad->tcur;
4953
4954 gad->tcur += 8;
4955
4956 /* If we're at the top of the region, wrap around to the bottom. */
4957 if (gad->tcur == gad->tmax)
4958 gad->tcur = gad->tmin;
4959
4960 return ret;
4961 }
4962
4963 /* Assign GOT offsets for every GOT entry and function descriptor.
4964 Doing everything in a single pass is tricky. */
4965
4966 static int
4967 _frvfdpic_assign_got_entries (void **entryp, void *info_)
4968 {
4969 struct frvfdpic_relocs_info *entry = *entryp;
4970 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
4971
4972 if (entry->got12)
4973 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4974 else if (entry->gotlos)
4975 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4976 else if (entry->gothilo)
4977 entry->got_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4978
4979 if (entry->fdgot12)
4980 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->got12);
4981 else if (entry->fdgotlos)
4982 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
4983 else if (entry->fdgothilo)
4984 entry->fdgot_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
4985
4986 if (entry->fdgoff12)
4987 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4988 else if (entry->plt && dinfo->got12.fdplt)
4989 {
4990 dinfo->got12.fdplt -= 8;
4991 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->got12);
4992 }
4993 else if (entry->fdgofflos)
4994 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4995 else if (entry->plt && dinfo->gotlos.fdplt)
4996 {
4997 dinfo->gotlos.fdplt -= 8;
4998 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gotlos);
4999 }
5000 else if (entry->plt)
5001 {
5002 dinfo->gothilo.fdplt -= 8;
5003 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5004 }
5005 else if (entry->privfd)
5006 entry->fd_entry = _frvfdpic_get_fd_entry (&dinfo->gothilo);
5007
5008 if (entry->tlsoff12)
5009 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->got12);
5010 else if (entry->tlsofflos)
5011 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gotlos);
5012 else if (entry->tlsoffhilo)
5013 entry->tlsoff_entry = _frvfdpic_get_got_entry (&dinfo->gothilo);
5014
5015 if (entry->tlsdesc12)
5016 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5017 else if (entry->tlsplt && dinfo->got12.tlsdplt)
5018 {
5019 dinfo->got12.tlsdplt -= 8;
5020 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->got12);
5021 }
5022 else if (entry->tlsdesclos)
5023 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5024 else if (entry->tlsplt && dinfo->gotlos.tlsdplt)
5025 {
5026 dinfo->gotlos.tlsdplt -= 8;
5027 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gotlos);
5028 }
5029 else if (entry->tlsplt)
5030 {
5031 dinfo->gothilo.tlsdplt -= 8;
5032 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5033 }
5034 else if (entry->tlsdeschilo)
5035 entry->tlsdesc_entry = _frvfdpic_get_tlsdesc_entry (&dinfo->gothilo);
5036
5037 return 1;
5038 }
5039
5040 /* Assign GOT offsets to private function descriptors used by PLT
5041 entries (or referenced by 32-bit offsets), as well as PLT entries
5042 and lazy PLT entries. */
5043
5044 static int
5045 _frvfdpic_assign_plt_entries (void **entryp, void *info_)
5046 {
5047 struct frvfdpic_relocs_info *entry = *entryp;
5048 struct _frvfdpic_dynamic_got_plt_info *dinfo = info_;
5049
5050 if (entry->privfd)
5051 BFD_ASSERT (entry->fd_entry);
5052
5053 if (entry->plt)
5054 {
5055 int size;
5056
5057 /* We use the section's raw size to mark the location of the
5058 next PLT entry. */
5059 entry->plt_entry = frvfdpic_plt_section (dinfo->g.info)->size;
5060
5061 /* Figure out the length of this PLT entry based on the
5062 addressing mode we need to reach the function descriptor. */
5063 BFD_ASSERT (entry->fd_entry);
5064 if (entry->fd_entry >= -(1 << (12 - 1))
5065 && entry->fd_entry < (1 << (12 - 1)))
5066 size = 8;
5067 else if (entry->fd_entry >= -(1 << (16 - 1))
5068 && entry->fd_entry < (1 << (16 - 1)))
5069 size = 12;
5070 else
5071 size = 16;
5072
5073 frvfdpic_plt_section (dinfo->g.info)->size += size;
5074 }
5075
5076 if (entry->lazyplt)
5077 {
5078 entry->lzplt_entry = dinfo->g.lzplt;
5079 dinfo->g.lzplt += 8;
5080 /* If this entry is the one that gets the resolver stub, account
5081 for the additional instruction. */
5082 if (entry->lzplt_entry % FRVFDPIC_LZPLT_BLOCK_SIZE
5083 == FRVFDPIC_LZPLT_RESOLV_LOC)
5084 dinfo->g.lzplt += 4;
5085 }
5086
5087 if (entry->tlsplt)
5088 {
5089 int size;
5090
5091 entry->tlsplt_entry
5092 = frvfdpic_plt_section (dinfo->g.info)->size;
5093
5094 if (bfd_link_executable (dinfo->g.info)
5095 && (entry->symndx != -1
5096 || FRVFDPIC_SYM_LOCAL (dinfo->g.info, entry->d.h)))
5097 {
5098 if ((bfd_signed_vma)entry->addend >= -(1 << (16 - 1))
5099 /* FIXME: here we use the size of the TLS section
5100 as an upper bound for the value of the TLS
5101 symbol, because we may not know the exact value
5102 yet. If we get it wrong, we'll just waste a
5103 word in the PLT, and we should never get even
5104 close to 32 KiB of TLS anyway. */
5105 && elf_hash_table (dinfo->g.info)->tls_sec
5106 && (elf_hash_table (dinfo->g.info)->tls_sec->size
5107 + (bfd_signed_vma)(entry->addend) <= (1 << (16 - 1))))
5108 size = 8;
5109 else
5110 size = 12;
5111 }
5112 else if (entry->tlsoff_entry)
5113 {
5114 if (entry->tlsoff_entry >= -(1 << (12 - 1))
5115 && entry->tlsoff_entry < (1 << (12 - 1)))
5116 size = 8;
5117 else if (entry->tlsoff_entry >= -(1 << (16 - 1))
5118 && entry->tlsoff_entry < (1 << (16 - 1)))
5119 size = 12;
5120 else
5121 size = 16;
5122 }
5123 else
5124 {
5125 BFD_ASSERT (entry->tlsdesc_entry);
5126
5127 if (entry->tlsdesc_entry >= -(1 << (12 - 1))
5128 && entry->tlsdesc_entry < (1 << (12 - 1)))
5129 size = 8;
5130 else if (entry->tlsdesc_entry >= -(1 << (16 - 1))
5131 && entry->tlsdesc_entry < (1 << (16 - 1)))
5132 size = 12;
5133 else
5134 size = 16;
5135 }
5136
5137 frvfdpic_plt_section (dinfo->g.info)->size += size;
5138 }
5139
5140 return 1;
5141 }
5142
5143 /* Cancel out any effects of calling _frvfdpic_assign_got_entries and
5144 _frvfdpic_assign_plt_entries. */
5145
5146 static int
5147 _frvfdpic_reset_got_plt_entries (void **entryp, void *ignore ATTRIBUTE_UNUSED)
5148 {
5149 struct frvfdpic_relocs_info *entry = *entryp;
5150
5151 entry->got_entry = 0;
5152 entry->fdgot_entry = 0;
5153 entry->fd_entry = 0;
5154 entry->plt_entry = (bfd_vma)-1;
5155 entry->lzplt_entry = (bfd_vma)-1;
5156 entry->tlsoff_entry = 0;
5157 entry->tlsdesc_entry = 0;
5158 entry->tlsplt_entry = (bfd_vma)-1;
5159
5160 return 1;
5161 }
5162
5163 /* Follow indirect and warning hash entries so that each got entry
5164 points to the final symbol definition. P must point to a pointer
5165 to the hash table we're traversing. Since this traversal may
5166 modify the hash table, we set this pointer to NULL to indicate
5167 we've made a potentially-destructive change to the hash table, so
5168 the traversal must be restarted. */
5169 static int
5170 _frvfdpic_resolve_final_relocs_info (void **entryp, void *p)
5171 {
5172 struct frvfdpic_relocs_info *entry = *entryp;
5173 htab_t *htab = p;
5174
5175 if (entry->symndx == -1)
5176 {
5177 struct elf_link_hash_entry *h = entry->d.h;
5178 struct frvfdpic_relocs_info *oentry;
5179
5180 while (h->root.type == bfd_link_hash_indirect
5181 || h->root.type == bfd_link_hash_warning)
5182 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5183
5184 if (entry->d.h == h)
5185 return 1;
5186
5187 oentry = frvfdpic_relocs_info_for_global (*htab, 0, h, entry->addend,
5188 NO_INSERT);
5189
5190 if (oentry)
5191 {
5192 /* Merge the two entries. */
5193 frvfdpic_pic_merge_early_relocs_info (oentry, entry);
5194 htab_clear_slot (*htab, entryp);
5195 return 1;
5196 }
5197
5198 entry->d.h = h;
5199
5200 /* If we can't find this entry with the new bfd hash, re-insert
5201 it, and get the traversal restarted. */
5202 if (! htab_find (*htab, entry))
5203 {
5204 htab_clear_slot (*htab, entryp);
5205 entryp = htab_find_slot (*htab, entry, INSERT);
5206 if (! *entryp)
5207 *entryp = entry;
5208 /* Abort the traversal, since the whole table may have
5209 moved, and leave it up to the parent to restart the
5210 process. */
5211 *(htab_t *)p = NULL;
5212 return 0;
5213 }
5214 }
5215
5216 return 1;
5217 }
5218
5219 /* Compute the total size of the GOT, the PLT, the dynamic relocations
5220 section and the rofixup section. Assign locations for GOT and PLT
5221 entries. */
5222
5223 static bfd_boolean
5224 _frvfdpic_size_got_plt (bfd *output_bfd,
5225 struct _frvfdpic_dynamic_got_plt_info *gpinfop)
5226 {
5227 bfd_signed_vma odd;
5228 bfd_vma limit, tlslimit;
5229 struct bfd_link_info *info = gpinfop->g.info;
5230 bfd *dynobj = elf_hash_table (info)->dynobj;
5231
5232 memcpy (frvfdpic_dynamic_got_plt_info (info), &gpinfop->g,
5233 sizeof (gpinfop->g));
5234
5235 odd = 12;
5236 /* Compute the total size taken by entries in the 12-bit and 16-bit
5237 ranges, to tell how many PLT function descriptors we can bring
5238 into the 12-bit range without causing the 16-bit range to
5239 overflow. */
5240 limit = odd + gpinfop->g.got12 + gpinfop->g.gotlos
5241 + gpinfop->g.fd12 + gpinfop->g.fdlos
5242 + gpinfop->g.tlsd12 + gpinfop->g.tlsdlos;
5243 if (limit < (bfd_vma)1 << 16)
5244 limit = ((bfd_vma)1 << 16) - limit;
5245 else
5246 limit = 0;
5247 if (gpinfop->g.fdplt < limit)
5248 {
5249 tlslimit = (limit - gpinfop->g.fdplt) & ~ (bfd_vma) 8;
5250 limit = gpinfop->g.fdplt;
5251 }
5252 else
5253 tlslimit = 0;
5254 if (gpinfop->g.tlsdplt < tlslimit)
5255 tlslimit = gpinfop->g.tlsdplt;
5256
5257 /* Determine the ranges of GOT offsets that we can use for each
5258 range of addressing modes. */
5259 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->got12,
5260 0,
5261 odd,
5262 16,
5263 gpinfop->g.got12,
5264 gpinfop->g.fd12,
5265 limit,
5266 gpinfop->g.tlsd12,
5267 tlslimit,
5268 (bfd_vma)1 << (12-1));
5269 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gotlos,
5270 gpinfop->got12.tmin,
5271 odd,
5272 gpinfop->got12.tmax,
5273 gpinfop->g.gotlos,
5274 gpinfop->g.fdlos,
5275 gpinfop->g.fdplt
5276 - gpinfop->got12.fdplt,
5277 gpinfop->g.tlsdlos,
5278 gpinfop->g.tlsdplt
5279 - gpinfop->got12.tlsdplt,
5280 (bfd_vma)1 << (16-1));
5281 odd = _frvfdpic_compute_got_alloc_data (&gpinfop->gothilo,
5282 gpinfop->gotlos.tmin,
5283 odd,
5284 gpinfop->gotlos.tmax,
5285 gpinfop->g.gothilo,
5286 gpinfop->g.fdhilo,
5287 gpinfop->g.fdplt
5288 - gpinfop->got12.fdplt
5289 - gpinfop->gotlos.fdplt,
5290 gpinfop->g.tlsdhilo,
5291 gpinfop->g.tlsdplt
5292 - gpinfop->got12.tlsdplt
5293 - gpinfop->gotlos.tlsdplt,
5294 (bfd_vma)1 << (32-1));
5295
5296 /* Now assign (most) GOT offsets. */
5297 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_got_entries,
5298 gpinfop);
5299
5300 frvfdpic_got_section (info)->size = gpinfop->gothilo.tmax
5301 - gpinfop->gothilo.tmin
5302 /* If an odd word is the last word of the GOT, we don't need this
5303 word to be part of the GOT. */
5304 - (odd + 4 == gpinfop->gothilo.tmax ? 4 : 0);
5305 if (frvfdpic_got_section (info)->size == 0)
5306 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5307 else if (frvfdpic_got_section (info)->size == 12
5308 && ! elf_hash_table (info)->dynamic_sections_created)
5309 {
5310 frvfdpic_got_section (info)->flags |= SEC_EXCLUDE;
5311 frvfdpic_got_section (info)->size = 0;
5312 }
5313 /* This will be non-NULL during relaxation. The assumption is that
5314 the size of one of these sections will never grow, only shrink,
5315 so we can use the larger buffer we allocated before. */
5316 else if (frvfdpic_got_section (info)->contents == NULL)
5317 {
5318 frvfdpic_got_section (info)->contents =
5319 (bfd_byte *) bfd_zalloc (dynobj,
5320 frvfdpic_got_section (info)->size);
5321 if (frvfdpic_got_section (info)->contents == NULL)
5322 return FALSE;
5323 }
5324
5325 if (frvfdpic_gotrel_section (info))
5326 /* Subtract the number of lzplt entries, since those will generate
5327 relocations in the pltrel section. */
5328 frvfdpic_gotrel_section (info)->size =
5329 (gpinfop->g.relocs - gpinfop->g.lzplt / 8)
5330 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5331 else
5332 BFD_ASSERT (gpinfop->g.relocs == 0);
5333 if (frvfdpic_gotrel_section (info)->size == 0)
5334 frvfdpic_gotrel_section (info)->flags |= SEC_EXCLUDE;
5335 else if (frvfdpic_gotrel_section (info)->contents == NULL)
5336 {
5337 frvfdpic_gotrel_section (info)->contents =
5338 (bfd_byte *) bfd_zalloc (dynobj,
5339 frvfdpic_gotrel_section (info)->size);
5340 if (frvfdpic_gotrel_section (info)->contents == NULL)
5341 return FALSE;
5342 }
5343
5344 frvfdpic_gotfixup_section (info)->size = (gpinfop->g.fixups + 1) * 4;
5345 if (frvfdpic_gotfixup_section (info)->size == 0)
5346 frvfdpic_gotfixup_section (info)->flags |= SEC_EXCLUDE;
5347 else if (frvfdpic_gotfixup_section (info)->contents == NULL)
5348 {
5349 frvfdpic_gotfixup_section (info)->contents =
5350 (bfd_byte *) bfd_zalloc (dynobj,
5351 frvfdpic_gotfixup_section (info)->size);
5352 if (frvfdpic_gotfixup_section (info)->contents == NULL)
5353 return FALSE;
5354 }
5355
5356 if (frvfdpic_pltrel_section (info))
5357 {
5358 frvfdpic_pltrel_section (info)->size =
5359 gpinfop->g.lzplt / 8
5360 * get_elf_backend_data (output_bfd)->s->sizeof_rel;
5361 if (frvfdpic_pltrel_section (info)->size == 0)
5362 frvfdpic_pltrel_section (info)->flags |= SEC_EXCLUDE;
5363 else if (frvfdpic_pltrel_section (info)->contents == NULL)
5364 {
5365 frvfdpic_pltrel_section (info)->contents =
5366 (bfd_byte *) bfd_zalloc (dynobj,
5367 frvfdpic_pltrel_section (info)->size);
5368 if (frvfdpic_pltrel_section (info)->contents == NULL)
5369 return FALSE;
5370 }
5371 }
5372
5373 /* Add 4 bytes for every block of at most 65535 lazy PLT entries,
5374 such that there's room for the additional instruction needed to
5375 call the resolver. Since _frvfdpic_assign_got_entries didn't
5376 account for them, our block size is 4 bytes smaller than the real
5377 block size. */
5378 if (frvfdpic_plt_section (info))
5379 {
5380 frvfdpic_plt_section (info)->size = gpinfop->g.lzplt
5381 + ((gpinfop->g.lzplt + (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) - 8)
5382 / (FRVFDPIC_LZPLT_BLOCK_SIZE - 4) * 4);
5383 }
5384
5385 /* Reset it, such that _frvfdpic_assign_plt_entries() can use it to
5386 actually assign lazy PLT entries addresses. */
5387 gpinfop->g.lzplt = 0;
5388
5389 /* Save information that we're going to need to generate GOT and PLT
5390 entries. */
5391 frvfdpic_got_initial_offset (info) = -gpinfop->gothilo.tmin;
5392
5393 if (get_elf_backend_data (output_bfd)->want_got_sym)
5394 elf_hash_table (info)->hgot->root.u.def.value
5395 = frvfdpic_got_initial_offset (info);
5396
5397 if (frvfdpic_plt_section (info))
5398 frvfdpic_plt_initial_offset (info) =
5399 frvfdpic_plt_section (info)->size;
5400
5401 /* Allocate a ret statement at plt_initial_offset, to be used by
5402 locally-resolved TLS descriptors. */
5403 if (gpinfop->g.tls_ret_refs)
5404 frvfdpic_plt_section (info)->size += 4;
5405
5406 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_assign_plt_entries,
5407 gpinfop);
5408
5409 /* Allocate the PLT section contents only after
5410 _frvfdpic_assign_plt_entries has a chance to add the size of the
5411 non-lazy PLT entries. */
5412 if (frvfdpic_plt_section (info))
5413 {
5414 if (frvfdpic_plt_section (info)->size == 0)
5415 frvfdpic_plt_section (info)->flags |= SEC_EXCLUDE;
5416 else if (frvfdpic_plt_section (info)->contents == NULL)
5417 {
5418 frvfdpic_plt_section (info)->contents =
5419 (bfd_byte *) bfd_zalloc (dynobj,
5420 frvfdpic_plt_section (info)->size);
5421 if (frvfdpic_plt_section (info)->contents == NULL)
5422 return FALSE;
5423 }
5424 }
5425
5426 return TRUE;
5427 }
5428
5429 /* Set the sizes of the dynamic sections. */
5430
5431 static bfd_boolean
5432 elf32_frvfdpic_size_dynamic_sections (bfd *output_bfd,
5433 struct bfd_link_info *info)
5434 {
5435 bfd *dynobj;
5436 asection *s;
5437 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5438
5439 dynobj = elf_hash_table (info)->dynobj;
5440 BFD_ASSERT (dynobj != NULL);
5441
5442 if (elf_hash_table (info)->dynamic_sections_created)
5443 {
5444 /* Set the contents of the .interp section to the interpreter. */
5445 if (bfd_link_executable (info) && !info->nointerp)
5446 {
5447 s = bfd_get_linker_section (dynobj, ".interp");
5448 BFD_ASSERT (s != NULL);
5449 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
5450 s->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
5451 }
5452 }
5453
5454 memset (&gpinfo, 0, sizeof (gpinfo));
5455 gpinfo.g.info = info;
5456
5457 for (;;)
5458 {
5459 htab_t relocs = frvfdpic_relocs_info (info);
5460
5461 htab_traverse (relocs, _frvfdpic_resolve_final_relocs_info, &relocs);
5462
5463 if (relocs == frvfdpic_relocs_info (info))
5464 break;
5465 }
5466
5467 htab_traverse (frvfdpic_relocs_info (info), _frvfdpic_count_got_plt_entries,
5468 &gpinfo.g);
5469
5470 /* Allocate space to save the summary information, we're going to
5471 use it if we're doing relaxations. */
5472 frvfdpic_dynamic_got_plt_info (info) = bfd_alloc (dynobj, sizeof (gpinfo.g));
5473
5474 if (!_frvfdpic_size_got_plt (output_bfd, &gpinfo))
5475 return FALSE;
5476
5477 if (elf_hash_table (info)->dynamic_sections_created)
5478 {
5479 if (frvfdpic_got_section (info)->size)
5480 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTGOT, 0))
5481 return FALSE;
5482
5483 if (frvfdpic_pltrel_section (info)->size)
5484 if (!_bfd_elf_add_dynamic_entry (info, DT_PLTRELSZ, 0)
5485 || !_bfd_elf_add_dynamic_entry (info, DT_PLTREL, DT_REL)
5486 || !_bfd_elf_add_dynamic_entry (info, DT_JMPREL, 0))
5487 return FALSE;
5488
5489 if (frvfdpic_gotrel_section (info)->size)
5490 if (!_bfd_elf_add_dynamic_entry (info, DT_REL, 0)
5491 || !_bfd_elf_add_dynamic_entry (info, DT_RELSZ, 0)
5492 || !_bfd_elf_add_dynamic_entry (info, DT_RELENT,
5493 sizeof (Elf32_External_Rel)))
5494 return FALSE;
5495 }
5496
5497 return TRUE;
5498 }
5499
5500 static bfd_boolean
5501 elf32_frvfdpic_always_size_sections (bfd *output_bfd,
5502 struct bfd_link_info *info)
5503 {
5504 if (!bfd_link_relocatable (info)
5505 && !bfd_elf_stack_segment_size (output_bfd, info,
5506 "__stacksize", DEFAULT_STACK_SIZE))
5507 return FALSE;
5508
5509 return TRUE;
5510 }
5511
5512 /* Check whether any of the relocations was optimized away, and
5513 subtract it from the relocation or fixup count. */
5514 static bfd_boolean
5515 _frvfdpic_check_discarded_relocs (bfd *abfd, asection *sec,
5516 struct bfd_link_info *info,
5517
5518 bfd_boolean *changed)
5519 {
5520 Elf_Internal_Shdr *symtab_hdr;
5521 struct elf_link_hash_entry **sym_hashes;
5522 Elf_Internal_Rela *rel, *erel;
5523
5524 if ((sec->flags & SEC_RELOC) == 0
5525 || sec->reloc_count == 0)
5526 return TRUE;
5527
5528 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5529 sym_hashes = elf_sym_hashes (abfd);
5530
5531 rel = elf_section_data (sec)->relocs;
5532
5533 /* Now examine each relocation. */
5534 for (erel = rel + sec->reloc_count; rel < erel; rel++)
5535 {
5536 struct elf_link_hash_entry *h;
5537 unsigned long r_symndx;
5538 struct frvfdpic_relocs_info *picrel;
5539 struct _frvfdpic_dynamic_got_info *dinfo;
5540
5541 if (ELF32_R_TYPE (rel->r_info) != R_FRV_32
5542 && ELF32_R_TYPE (rel->r_info) != R_FRV_FUNCDESC)
5543 continue;
5544
5545 if (_bfd_elf_section_offset (sec->output_section->owner,
5546 info, sec, rel->r_offset)
5547 != (bfd_vma)-1)
5548 continue;
5549
5550 r_symndx = ELF32_R_SYM (rel->r_info);
5551 if (r_symndx < symtab_hdr->sh_info)
5552 h = NULL;
5553 else
5554 {
5555 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
5556 while (h->root.type == bfd_link_hash_indirect
5557 || h->root.type == bfd_link_hash_warning)
5558 h = (struct elf_link_hash_entry *)h->root.u.i.link;
5559 }
5560
5561 if (h != NULL)
5562 picrel = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
5563 abfd, h,
5564 rel->r_addend, NO_INSERT);
5565 else
5566 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info (info),
5567 abfd, r_symndx,
5568 rel->r_addend, NO_INSERT);
5569
5570 if (! picrel)
5571 return FALSE;
5572
5573 *changed = TRUE;
5574 dinfo = frvfdpic_dynamic_got_plt_info (info);
5575
5576 _frvfdpic_count_relocs_fixups (picrel, dinfo, TRUE);
5577 if (ELF32_R_TYPE (rel->r_info) == R_FRV_32)
5578 picrel->relocs32--;
5579 else /* we know (ELF32_R_TYPE (rel->r_info) == R_FRV_FUNCDESC) */
5580 picrel->relocsfd--;
5581 _frvfdpic_count_relocs_fixups (picrel, dinfo, FALSE);
5582 }
5583
5584 return TRUE;
5585 }
5586
5587 static bfd_boolean
5588 frvfdpic_elf_discard_info (bfd *ibfd,
5589 struct elf_reloc_cookie *cookie ATTRIBUTE_UNUSED,
5590 struct bfd_link_info *info)
5591 {
5592 bfd_boolean changed = FALSE;
5593 asection *s;
5594 bfd *obfd = NULL;
5595
5596 /* Account for relaxation of .eh_frame section. */
5597 for (s = ibfd->sections; s; s = s->next)
5598 if (s->sec_info_type == SEC_INFO_TYPE_EH_FRAME)
5599 {
5600 if (!_frvfdpic_check_discarded_relocs (ibfd, s, info, &changed))
5601 return FALSE;
5602 obfd = s->output_section->owner;
5603 }
5604
5605 if (changed)
5606 {
5607 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5608
5609 memset (&gpinfo, 0, sizeof (gpinfo));
5610 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info),
5611 sizeof (gpinfo.g));
5612
5613 /* Clear GOT and PLT assignments. */
5614 htab_traverse (frvfdpic_relocs_info (info),
5615 _frvfdpic_reset_got_plt_entries,
5616 NULL);
5617
5618 if (!_frvfdpic_size_got_plt (obfd, &gpinfo))
5619 return FALSE;
5620 }
5621
5622 return TRUE;
5623 }
5624
5625 /* Look for opportunities to relax TLS relocations. We can assume
5626 we're linking the main executable or a static-tls library, since
5627 otherwise we wouldn't have got here. */
5628
5629 static int
5630 _frvfdpic_relax_got_plt_entries (void **entryp, void *dinfo_)
5631 {
5632 struct frvfdpic_relocs_info *entry = *entryp;
5633 struct _frvfdpic_dynamic_got_info *dinfo = dinfo_;
5634
5635 _frvfdpic_relax_tls_entries (entry, dinfo, TRUE);
5636
5637 return 1;
5638 }
5639
5640 static bfd_boolean
5641 elf32_frvfdpic_relax_section (bfd *abfd ATTRIBUTE_UNUSED, asection *sec,
5642 struct bfd_link_info *info, bfd_boolean *again)
5643 {
5644 struct _frvfdpic_dynamic_got_plt_info gpinfo;
5645
5646 if (bfd_link_relocatable (info))
5647 (*info->callbacks->einfo)
5648 (_("%P%F: --relax and -r may not be used together\n"));
5649
5650 /* If we return early, we didn't change anything. */
5651 *again = FALSE;
5652
5653 /* We'll do our thing when requested to relax the GOT section. */
5654 if (sec != frvfdpic_got_section (info))
5655 return TRUE;
5656
5657 /* We can only relax when linking the main executable or a library
5658 that can't be dlopened. */
5659 if (! bfd_link_executable (info) && ! (info->flags & DF_STATIC_TLS))
5660 return TRUE;
5661
5662 /* If there isn't a TLS section for this binary, we can't do
5663 anything about its TLS relocations (it probably doesn't have
5664 any. */
5665 if (elf_hash_table (info)->tls_sec == NULL)
5666 return TRUE;
5667
5668 memset (&gpinfo, 0, sizeof (gpinfo));
5669 memcpy (&gpinfo.g, frvfdpic_dynamic_got_plt_info (info), sizeof (gpinfo.g));
5670
5671 /* Now look for opportunities to relax, adjusting the GOT usage
5672 as needed. */
5673 htab_traverse (frvfdpic_relocs_info (info),
5674 _frvfdpic_relax_got_plt_entries,
5675 &gpinfo.g);
5676
5677 /* If we changed anything, reset and re-assign GOT and PLT entries. */
5678 if (memcmp (frvfdpic_dynamic_got_plt_info (info),
5679 &gpinfo.g, sizeof (gpinfo.g)) != 0)
5680 {
5681 /* Clear GOT and PLT assignments. */
5682 htab_traverse (frvfdpic_relocs_info (info),
5683 _frvfdpic_reset_got_plt_entries,
5684 NULL);
5685
5686 /* The owner of the TLS section is the output bfd. There should
5687 be a better way to get to it. */
5688 if (!_frvfdpic_size_got_plt (elf_hash_table (info)->tls_sec->owner,
5689 &gpinfo))
5690 return FALSE;
5691
5692 /* Repeat until we don't make any further changes. We could fail to
5693 introduce changes in a round if, for example, the 12-bit range is
5694 full, but we later release some space by getting rid of TLS
5695 descriptors in it. We have to repeat the whole process because
5696 we might have changed the size of a section processed before this
5697 one. */
5698 *again = TRUE;
5699 }
5700
5701 return TRUE;
5702 }
5703
5704 /* Fill in code and data in dynamic sections. */
5705
5706 static bfd_boolean
5707 elf32_frv_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5708 struct bfd_link_info *info ATTRIBUTE_UNUSED)
5709 {
5710 /* Nothing to be done for non-FDPIC. */
5711 return TRUE;
5712 }
5713
5714 static bfd_boolean
5715 elf32_frvfdpic_finish_dynamic_sections (bfd *output_bfd,
5716 struct bfd_link_info *info)
5717 {
5718 bfd *dynobj;
5719 asection *sdyn;
5720
5721 dynobj = elf_hash_table (info)->dynobj;
5722
5723 if (frvfdpic_dynamic_got_plt_info (info))
5724 {
5725 BFD_ASSERT (frvfdpic_dynamic_got_plt_info (info)->tls_ret_refs == 0);
5726 }
5727 if (frvfdpic_got_section (info))
5728 {
5729 BFD_ASSERT (frvfdpic_gotrel_section (info)->size
5730 == (frvfdpic_gotrel_section (info)->reloc_count
5731 * sizeof (Elf32_External_Rel)));
5732
5733 if (frvfdpic_gotfixup_section (info))
5734 {
5735 struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot;
5736 bfd_vma got_value = hgot->root.u.def.value
5737 + hgot->root.u.def.section->output_section->vma
5738 + hgot->root.u.def.section->output_offset;
5739 struct bfd_link_hash_entry *hend;
5740
5741 _frvfdpic_add_rofixup (output_bfd, frvfdpic_gotfixup_section (info),
5742 got_value, 0);
5743
5744 if (frvfdpic_gotfixup_section (info)->size
5745 != (frvfdpic_gotfixup_section (info)->reloc_count * 4))
5746 {
5747 error:
5748 info->callbacks->einfo
5749 ("LINKER BUG: .rofixup section size mismatch\n");
5750 return FALSE;
5751 }
5752
5753 hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__",
5754 FALSE, FALSE, TRUE);
5755 if (hend
5756 && (hend->type == bfd_link_hash_defined
5757 || hend->type == bfd_link_hash_defweak)
5758 && hend->u.def.section->output_section != NULL)
5759 {
5760 bfd_vma value =
5761 frvfdpic_gotfixup_section (info)->output_section->vma
5762 + frvfdpic_gotfixup_section (info)->output_offset
5763 + frvfdpic_gotfixup_section (info)->size
5764 - hend->u.def.section->output_section->vma
5765 - hend->u.def.section->output_offset;
5766 BFD_ASSERT (hend->u.def.value == value);
5767 if (hend->u.def.value != value)
5768 goto error;
5769 }
5770 }
5771 }
5772 if (frvfdpic_pltrel_section (info))
5773 {
5774 BFD_ASSERT (frvfdpic_pltrel_section (info)->size
5775 == (frvfdpic_pltrel_section (info)->reloc_count
5776 * sizeof (Elf32_External_Rel)));
5777 }
5778
5779
5780 if (elf_hash_table (info)->dynamic_sections_created)
5781 {
5782 Elf32_External_Dyn * dyncon;
5783 Elf32_External_Dyn * dynconend;
5784
5785 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
5786
5787 BFD_ASSERT (sdyn != NULL);
5788
5789 dyncon = (Elf32_External_Dyn *) sdyn->contents;
5790 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
5791
5792 for (; dyncon < dynconend; dyncon++)
5793 {
5794 Elf_Internal_Dyn dyn;
5795
5796 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
5797
5798 switch (dyn.d_tag)
5799 {
5800 default:
5801 break;
5802
5803 case DT_PLTGOT:
5804 dyn.d_un.d_ptr = frvfdpic_got_section (info)->output_section->vma
5805 + frvfdpic_got_section (info)->output_offset
5806 + frvfdpic_got_initial_offset (info);
5807 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5808 break;
5809
5810 case DT_JMPREL:
5811 dyn.d_un.d_ptr = frvfdpic_pltrel_section (info)
5812 ->output_section->vma
5813 + frvfdpic_pltrel_section (info)->output_offset;
5814 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5815 break;
5816
5817 case DT_PLTRELSZ:
5818 dyn.d_un.d_val = frvfdpic_pltrel_section (info)->size;
5819 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
5820 break;
5821 }
5822 }
5823 }
5824
5825 return TRUE;
5826 }
5827
5828 /* Adjust a symbol defined by a dynamic object and referenced by a
5829 regular object. */
5830
5831 static bfd_boolean
5832 elf32_frvfdpic_adjust_dynamic_symbol
5833 (struct bfd_link_info *info ATTRIBUTE_UNUSED,
5834 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
5835 {
5836 bfd * dynobj;
5837
5838 dynobj = elf_hash_table (info)->dynobj;
5839
5840 /* Make sure we know what is going on here. */
5841 BFD_ASSERT (dynobj != NULL
5842 && (h->u.weakdef != NULL
5843 || (h->def_dynamic
5844 && h->ref_regular
5845 && !h->def_regular)));
5846
5847 /* If this is a weak symbol, and there is a real definition, the
5848 processor independent code will have arranged for us to see the
5849 real definition first, and we can just use the same value. */
5850 if (h->u.weakdef != NULL)
5851 {
5852 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
5853 || h->u.weakdef->root.type == bfd_link_hash_defweak);
5854 h->root.u.def.section = h->u.weakdef->root.u.def.section;
5855 h->root.u.def.value = h->u.weakdef->root.u.def.value;
5856 }
5857
5858 return TRUE;
5859 }
5860
5861 /* Perform any actions needed for dynamic symbols. */
5862
5863 static bfd_boolean
5864 elf32_frvfdpic_finish_dynamic_symbol
5865 (bfd *output_bfd ATTRIBUTE_UNUSED,
5866 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5867 struct elf_link_hash_entry *h ATTRIBUTE_UNUSED,
5868 Elf_Internal_Sym *sym ATTRIBUTE_UNUSED)
5869 {
5870 return TRUE;
5871 }
5872
5873 /* Decide whether to attempt to turn absptr or lsda encodings in
5874 shared libraries into pcrel within the given input section. */
5875
5876 static bfd_boolean
5877 frvfdpic_elf_use_relative_eh_frame
5878 (bfd *input_bfd ATTRIBUTE_UNUSED,
5879 struct bfd_link_info *info ATTRIBUTE_UNUSED,
5880 asection *eh_frame_section ATTRIBUTE_UNUSED)
5881 {
5882 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
5883 return FALSE;
5884 }
5885
5886 /* Adjust the contents of an eh_frame_hdr section before they're output. */
5887
5888 static bfd_byte
5889 frvfdpic_elf_encode_eh_address (bfd *abfd,
5890 struct bfd_link_info *info,
5891 asection *osec, bfd_vma offset,
5892 asection *loc_sec, bfd_vma loc_offset,
5893 bfd_vma *encoded)
5894 {
5895 struct elf_link_hash_entry *h;
5896
5897 h = elf_hash_table (info)->hgot;
5898 BFD_ASSERT (h && h->root.type == bfd_link_hash_defined);
5899
5900 if (! h || (_frvfdpic_osec_to_segment (abfd, osec)
5901 == _frvfdpic_osec_to_segment (abfd, loc_sec->output_section)))
5902 return _bfd_elf_encode_eh_address (abfd, info, osec, offset,
5903 loc_sec, loc_offset, encoded);
5904
5905 BFD_ASSERT (_frvfdpic_osec_to_segment (abfd, osec)
5906 == (_frvfdpic_osec_to_segment
5907 (abfd, h->root.u.def.section->output_section)));
5908
5909 *encoded = osec->vma + offset
5910 - (h->root.u.def.value
5911 + h->root.u.def.section->output_section->vma
5912 + h->root.u.def.section->output_offset);
5913
5914 return DW_EH_PE_datarel | DW_EH_PE_sdata4;
5915 }
5916
5917 /* Look through the relocs for a section during the first phase.
5918
5919 Besides handling virtual table relocs for gc, we have to deal with
5920 all sorts of PIC-related relocations. We describe below the
5921 general plan on how to handle such relocations, even though we only
5922 collect information at this point, storing them in hash tables for
5923 perusal of later passes.
5924
5925 32 relocations are propagated to the linker output when creating
5926 position-independent output. LO16 and HI16 relocations are not
5927 supposed to be encountered in this case.
5928
5929 LABEL16 should always be resolvable by the linker, since it's only
5930 used by branches.
5931
5932 LABEL24, on the other hand, is used by calls. If it turns out that
5933 the target of a call is a dynamic symbol, a PLT entry must be
5934 created for it, which triggers the creation of a private function
5935 descriptor and, unless lazy binding is disabled, a lazy PLT entry.
5936
5937 GPREL relocations require the referenced symbol to be in the same
5938 segment as _gp, but this can only be checked later.
5939
5940 All GOT, GOTOFF and FUNCDESC relocations require a .got section to
5941 exist. LABEL24 might as well, since it may require a PLT entry,
5942 that will require a got.
5943
5944 Non-FUNCDESC GOT relocations require a GOT entry to be created
5945 regardless of whether the symbol is dynamic. However, since a
5946 global symbol that turns out to not be exported may have the same
5947 address of a non-dynamic symbol, we don't assign GOT entries at
5948 this point, such that we can share them in this case. A relocation
5949 for the GOT entry always has to be created, be it to offset a
5950 private symbol by the section load address, be it to get the symbol
5951 resolved dynamically.
5952
5953 FUNCDESC GOT relocations require a GOT entry to be created, and
5954 handled as if a FUNCDESC relocation was applied to the GOT entry in
5955 an object file.
5956
5957 FUNCDESC relocations referencing a symbol that turns out to NOT be
5958 dynamic cause a private function descriptor to be created. The
5959 FUNCDESC relocation then decays to a 32 relocation that points at
5960 the private descriptor. If the symbol is dynamic, the FUNCDESC
5961 relocation is propagated to the linker output, such that the
5962 dynamic linker creates the canonical descriptor, pointing to the
5963 dynamically-resolved definition of the function.
5964
5965 Non-FUNCDESC GOTOFF relocations must always refer to non-dynamic
5966 symbols that are assigned to the same segment as the GOT, but we
5967 can only check this later, after we know the complete set of
5968 symbols defined and/or exported.
5969
5970 FUNCDESC GOTOFF relocations require a function descriptor to be
5971 created and, unless lazy binding is disabled or the symbol is not
5972 dynamic, a lazy PLT entry. Since we can't tell at this point
5973 whether a symbol is going to be dynamic, we have to decide later
5974 whether to create a lazy PLT entry or bind the descriptor directly
5975 to the private function.
5976
5977 FUNCDESC_VALUE relocations are not supposed to be present in object
5978 files, but they may very well be simply propagated to the linker
5979 output, since they have no side effect.
5980
5981
5982 A function descriptor always requires a FUNCDESC_VALUE relocation.
5983 Whether it's in .plt.rel or not depends on whether lazy binding is
5984 enabled and on whether the referenced symbol is dynamic.
5985
5986 The existence of a lazy PLT requires the resolverStub lazy PLT
5987 entry to be present.
5988
5989
5990 As for assignment of GOT, PLT and lazy PLT entries, and private
5991 descriptors, we might do them all sequentially, but we can do
5992 better than that. For example, we can place GOT entries and
5993 private function descriptors referenced using 12-bit operands
5994 closer to the PIC register value, such that these relocations don't
5995 overflow. Those that are only referenced with LO16 relocations
5996 could come next, but we may as well place PLT-required function
5997 descriptors in the 12-bit range to make them shorter. Symbols
5998 referenced with LO16/HI16 may come next, but we may place
5999 additional function descriptors in the 16-bit range if we can
6000 reliably tell that we've already placed entries that are ever
6001 referenced with only LO16. PLT entries are therefore generated as
6002 small as possible, while not introducing relocation overflows in
6003 GOT or FUNCDESC_GOTOFF relocations. Lazy PLT entries could be
6004 generated before or after PLT entries, but not intermingled with
6005 them, such that we can have more lazy PLT entries in range for a
6006 branch to the resolverStub. The resolverStub should be emitted at
6007 the most distant location from the first lazy PLT entry such that
6008 it's still in range for a branch, or closer, if there isn't a need
6009 for so many lazy PLT entries. Additional lazy PLT entries may be
6010 emitted after the resolverStub, as long as branches are still in
6011 range. If the branch goes out of range, longer lazy PLT entries
6012 are emitted.
6013
6014 We could further optimize PLT and lazy PLT entries by giving them
6015 priority in assignment to closer-to-gr17 locations depending on the
6016 number of occurrences of references to them (assuming a function
6017 that's called more often is more important for performance, so its
6018 PLT entry should be faster), or taking hints from the compiler.
6019 Given infinite time and money... :-) */
6020
6021 static bfd_boolean
6022 elf32_frv_check_relocs (bfd *abfd,
6023 struct bfd_link_info *info,
6024 asection *sec,
6025 const Elf_Internal_Rela *relocs)
6026 {
6027 Elf_Internal_Shdr *symtab_hdr;
6028 struct elf_link_hash_entry **sym_hashes;
6029 const Elf_Internal_Rela *rel;
6030 const Elf_Internal_Rela *rel_end;
6031 bfd *dynobj;
6032 struct frvfdpic_relocs_info *picrel;
6033
6034 if (bfd_link_relocatable (info))
6035 return TRUE;
6036
6037 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
6038 sym_hashes = elf_sym_hashes (abfd);
6039
6040 dynobj = elf_hash_table (info)->dynobj;
6041 rel_end = relocs + sec->reloc_count;
6042 for (rel = relocs; rel < rel_end; rel++)
6043 {
6044 struct elf_link_hash_entry *h;
6045 unsigned long r_symndx;
6046
6047 r_symndx = ELF32_R_SYM (rel->r_info);
6048 if (r_symndx < symtab_hdr->sh_info)
6049 h = NULL;
6050 else
6051 {
6052 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
6053 while (h->root.type == bfd_link_hash_indirect
6054 || h->root.type == bfd_link_hash_warning)
6055 h = (struct elf_link_hash_entry *) h->root.u.i.link;
6056
6057 /* PR15323, ref flags aren't set for references in the same
6058 object. */
6059 h->root.non_ir_ref = 1;
6060 }
6061
6062 switch (ELF32_R_TYPE (rel->r_info))
6063 {
6064 case R_FRV_GETTLSOFF:
6065 case R_FRV_TLSDESC_VALUE:
6066 case R_FRV_GOTTLSDESC12:
6067 case R_FRV_GOTTLSDESCHI:
6068 case R_FRV_GOTTLSDESCLO:
6069 case R_FRV_GOTTLSOFF12:
6070 case R_FRV_GOTTLSOFFHI:
6071 case R_FRV_GOTTLSOFFLO:
6072 case R_FRV_TLSOFF:
6073 case R_FRV_GOT12:
6074 case R_FRV_GOTHI:
6075 case R_FRV_GOTLO:
6076 case R_FRV_FUNCDESC_GOT12:
6077 case R_FRV_FUNCDESC_GOTHI:
6078 case R_FRV_FUNCDESC_GOTLO:
6079 case R_FRV_GOTOFF12:
6080 case R_FRV_GOTOFFHI:
6081 case R_FRV_GOTOFFLO:
6082 case R_FRV_FUNCDESC_GOTOFF12:
6083 case R_FRV_FUNCDESC_GOTOFFHI:
6084 case R_FRV_FUNCDESC_GOTOFFLO:
6085 case R_FRV_FUNCDESC:
6086 case R_FRV_FUNCDESC_VALUE:
6087 case R_FRV_TLSMOFF12:
6088 case R_FRV_TLSMOFFHI:
6089 case R_FRV_TLSMOFFLO:
6090 case R_FRV_TLSMOFF:
6091 if (! IS_FDPIC (abfd))
6092 goto bad_reloc;
6093 /* Fall through. */
6094 case R_FRV_GPREL12:
6095 case R_FRV_GPRELU12:
6096 case R_FRV_GPRELHI:
6097 case R_FRV_GPRELLO:
6098 case R_FRV_LABEL24:
6099 case R_FRV_32:
6100 if (! dynobj)
6101 {
6102 elf_hash_table (info)->dynobj = dynobj = abfd;
6103 if (! _frv_create_got_section (abfd, info))
6104 return FALSE;
6105 }
6106 if (! IS_FDPIC (abfd))
6107 {
6108 picrel = NULL;
6109 break;
6110 }
6111 if (h != NULL)
6112 {
6113 if (h->dynindx == -1)
6114 switch (ELF_ST_VISIBILITY (h->other))
6115 {
6116 case STV_INTERNAL:
6117 case STV_HIDDEN:
6118 break;
6119 default:
6120 bfd_elf_link_record_dynamic_symbol (info, h);
6121 break;
6122 }
6123 picrel
6124 = frvfdpic_relocs_info_for_global (frvfdpic_relocs_info (info),
6125 abfd, h,
6126 rel->r_addend, INSERT);
6127 }
6128 else
6129 picrel = frvfdpic_relocs_info_for_local (frvfdpic_relocs_info
6130 (info), abfd, r_symndx,
6131 rel->r_addend, INSERT);
6132 if (! picrel)
6133 return FALSE;
6134 break;
6135
6136 default:
6137 picrel = NULL;
6138 break;
6139 }
6140
6141 switch (ELF32_R_TYPE (rel->r_info))
6142 {
6143 case R_FRV_LABEL24:
6144 if (IS_FDPIC (abfd))
6145 picrel->call = 1;
6146 break;
6147
6148 case R_FRV_FUNCDESC_VALUE:
6149 picrel->relocsfdv++;
6150 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6151 picrel->relocs32--;
6152 /* Fall through. */
6153
6154 case R_FRV_32:
6155 if (! IS_FDPIC (abfd))
6156 break;
6157
6158 picrel->sym = 1;
6159 if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
6160 picrel->relocs32++;
6161 break;
6162
6163 case R_FRV_GOT12:
6164 picrel->got12 = 1;
6165 break;
6166
6167 case R_FRV_GOTHI:
6168 case R_FRV_GOTLO:
6169 picrel->gothilo = 1;
6170 break;
6171
6172 case R_FRV_FUNCDESC_GOT12:
6173 picrel->fdgot12 = 1;
6174 break;
6175
6176 case R_FRV_FUNCDESC_GOTHI:
6177 case R_FRV_FUNCDESC_GOTLO:
6178 picrel->fdgothilo = 1;
6179 break;
6180
6181 case R_FRV_GOTOFF12:
6182 case R_FRV_GOTOFFHI:
6183 case R_FRV_GOTOFFLO:
6184 picrel->gotoff = 1;
6185 break;
6186
6187 case R_FRV_FUNCDESC_GOTOFF12:
6188 picrel->fdgoff12 = 1;
6189 break;
6190
6191 case R_FRV_FUNCDESC_GOTOFFHI:
6192 case R_FRV_FUNCDESC_GOTOFFLO:
6193 picrel->fdgoffhilo = 1;
6194 break;
6195
6196 case R_FRV_FUNCDESC:
6197 picrel->fd = 1;
6198 picrel->relocsfd++;
6199 break;
6200
6201 case R_FRV_GETTLSOFF:
6202 picrel->tlsplt = 1;
6203 break;
6204
6205 case R_FRV_TLSDESC_VALUE:
6206 picrel->relocstlsd++;
6207 goto bad_reloc;
6208
6209 case R_FRV_GOTTLSDESC12:
6210 picrel->tlsdesc12 = 1;
6211 break;
6212
6213 case R_FRV_GOTTLSDESCHI:
6214 case R_FRV_GOTTLSDESCLO:
6215 picrel->tlsdeschilo = 1;
6216 break;
6217
6218 case R_FRV_TLSMOFF12:
6219 case R_FRV_TLSMOFFHI:
6220 case R_FRV_TLSMOFFLO:
6221 case R_FRV_TLSMOFF:
6222 break;
6223
6224 case R_FRV_GOTTLSOFF12:
6225 picrel->tlsoff12 = 1;
6226 info->flags |= DF_STATIC_TLS;
6227 break;
6228
6229 case R_FRV_GOTTLSOFFHI:
6230 case R_FRV_GOTTLSOFFLO:
6231 picrel->tlsoffhilo = 1;
6232 info->flags |= DF_STATIC_TLS;
6233 break;
6234
6235 case R_FRV_TLSOFF:
6236 picrel->relocstlsoff++;
6237 info->flags |= DF_STATIC_TLS;
6238 goto bad_reloc;
6239
6240 /* This relocation describes the C++ object vtable hierarchy.
6241 Reconstruct it for later use during GC. */
6242 case R_FRV_GNU_VTINHERIT:
6243 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
6244 return FALSE;
6245 break;
6246
6247 /* This relocation describes which C++ vtable entries are actually
6248 used. Record for later use during GC. */
6249 case R_FRV_GNU_VTENTRY:
6250 BFD_ASSERT (h != NULL);
6251 if (h != NULL
6252 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6253 return FALSE;
6254 break;
6255
6256 case R_FRV_LABEL16:
6257 case R_FRV_LO16:
6258 case R_FRV_HI16:
6259 case R_FRV_GPREL12:
6260 case R_FRV_GPRELU12:
6261 case R_FRV_GPREL32:
6262 case R_FRV_GPRELHI:
6263 case R_FRV_GPRELLO:
6264 case R_FRV_TLSDESC_RELAX:
6265 case R_FRV_GETTLSOFF_RELAX:
6266 case R_FRV_TLSOFF_RELAX:
6267 break;
6268
6269 default:
6270 bad_reloc:
6271 info->callbacks->einfo
6272 (_("%B: unsupported relocation type %i\n"),
6273 abfd, ELF32_R_TYPE (rel->r_info));
6274 return FALSE;
6275 }
6276 }
6277
6278 return TRUE;
6279 }
6280
6281 \f
6282 /* Return the machine subcode from the ELF e_flags header. */
6283
6284 static int
6285 elf32_frv_machine (bfd *abfd)
6286 {
6287 switch (elf_elfheader (abfd)->e_flags & EF_FRV_CPU_MASK)
6288 {
6289 default: break;
6290 case EF_FRV_CPU_FR550: return bfd_mach_fr550;
6291 case EF_FRV_CPU_FR500: return bfd_mach_fr500;
6292 case EF_FRV_CPU_FR450: return bfd_mach_fr450;
6293 case EF_FRV_CPU_FR405: return bfd_mach_fr400;
6294 case EF_FRV_CPU_FR400: return bfd_mach_fr400;
6295 case EF_FRV_CPU_FR300: return bfd_mach_fr300;
6296 case EF_FRV_CPU_SIMPLE: return bfd_mach_frvsimple;
6297 case EF_FRV_CPU_TOMCAT: return bfd_mach_frvtomcat;
6298 }
6299
6300 return bfd_mach_frv;
6301 }
6302
6303 /* Set the right machine number for a FRV ELF file. */
6304
6305 static bfd_boolean
6306 elf32_frv_object_p (bfd *abfd)
6307 {
6308 bfd_default_set_arch_mach (abfd, bfd_arch_frv, elf32_frv_machine (abfd));
6309 return (((elf_elfheader (abfd)->e_flags & EF_FRV_FDPIC) != 0)
6310 == (IS_FDPIC (abfd)));
6311 }
6312 \f
6313 /* Function to set the ELF flag bits. */
6314
6315 static bfd_boolean
6316 frv_elf_set_private_flags (bfd *abfd, flagword flags)
6317 {
6318 elf_elfheader (abfd)->e_flags = flags;
6319 elf_flags_init (abfd) = TRUE;
6320 return TRUE;
6321 }
6322
6323 /* Return true if the architecture described by elf header flag
6324 EXTENSION is an extension of the architecture described by BASE. */
6325
6326 static bfd_boolean
6327 frv_elf_arch_extension_p (flagword base, flagword extension)
6328 {
6329 if (base == extension)
6330 return TRUE;
6331
6332 /* CPU_GENERIC code can be merged with code for a specific
6333 architecture, in which case the result is marked as being
6334 for the specific architecture. Everything is therefore
6335 an extension of CPU_GENERIC. */
6336 if (base == EF_FRV_CPU_GENERIC)
6337 return TRUE;
6338
6339 if (extension == EF_FRV_CPU_FR450)
6340 if (base == EF_FRV_CPU_FR400 || base == EF_FRV_CPU_FR405)
6341 return TRUE;
6342
6343 if (extension == EF_FRV_CPU_FR405)
6344 if (base == EF_FRV_CPU_FR400)
6345 return TRUE;
6346
6347 return FALSE;
6348 }
6349
6350 /* Merge backend specific data from an object file to the output
6351 object file when linking. */
6352
6353 static bfd_boolean
6354 frv_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
6355 {
6356 flagword old_flags, old_partial;
6357 flagword new_flags, new_partial;
6358 bfd_boolean error = FALSE;
6359 char new_opt[80];
6360 char old_opt[80];
6361
6362 new_opt[0] = old_opt[0] = '\0';
6363 new_flags = elf_elfheader (ibfd)->e_flags;
6364 old_flags = elf_elfheader (obfd)->e_flags;
6365
6366 if (new_flags & EF_FRV_FDPIC)
6367 new_flags &= ~EF_FRV_PIC;
6368
6369 #ifdef DEBUG
6370 (*_bfd_error_handler) ("old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s, filename = %s",
6371 old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no",
6372 bfd_get_filename (ibfd));
6373 #endif
6374
6375 if (!elf_flags_init (obfd)) /* First call, no flags set. */
6376 {
6377 elf_flags_init (obfd) = TRUE;
6378 old_flags = new_flags;
6379 }
6380
6381 else if (new_flags == old_flags) /* Compatible flags are ok. */
6382 ;
6383
6384 else /* Possibly incompatible flags. */
6385 {
6386 /* Warn if different # of gprs are used. Note, 0 means nothing is
6387 said about the size of gprs. */
6388 new_partial = (new_flags & EF_FRV_GPR_MASK);
6389 old_partial = (old_flags & EF_FRV_GPR_MASK);
6390 if (new_partial == old_partial)
6391 ;
6392
6393 else if (new_partial == 0)
6394 ;
6395
6396 else if (old_partial == 0)
6397 old_flags |= new_partial;
6398
6399 else
6400 {
6401 switch (new_partial)
6402 {
6403 default: strcat (new_opt, " -mgpr-??"); break;
6404 case EF_FRV_GPR_32: strcat (new_opt, " -mgpr-32"); break;
6405 case EF_FRV_GPR_64: strcat (new_opt, " -mgpr-64"); break;
6406 }
6407
6408 switch (old_partial)
6409 {
6410 default: strcat (old_opt, " -mgpr-??"); break;
6411 case EF_FRV_GPR_32: strcat (old_opt, " -mgpr-32"); break;
6412 case EF_FRV_GPR_64: strcat (old_opt, " -mgpr-64"); break;
6413 }
6414 }
6415
6416 /* Warn if different # of fprs are used. Note, 0 means nothing is
6417 said about the size of fprs. */
6418 new_partial = (new_flags & EF_FRV_FPR_MASK);
6419 old_partial = (old_flags & EF_FRV_FPR_MASK);
6420 if (new_partial == old_partial)
6421 ;
6422
6423 else if (new_partial == 0)
6424 ;
6425
6426 else if (old_partial == 0)
6427 old_flags |= new_partial;
6428
6429 else
6430 {
6431 switch (new_partial)
6432 {
6433 default: strcat (new_opt, " -mfpr-?"); break;
6434 case EF_FRV_FPR_32: strcat (new_opt, " -mfpr-32"); break;
6435 case EF_FRV_FPR_64: strcat (new_opt, " -mfpr-64"); break;
6436 case EF_FRV_FPR_NONE: strcat (new_opt, " -msoft-float"); break;
6437 }
6438
6439 switch (old_partial)
6440 {
6441 default: strcat (old_opt, " -mfpr-?"); break;
6442 case EF_FRV_FPR_32: strcat (old_opt, " -mfpr-32"); break;
6443 case EF_FRV_FPR_64: strcat (old_opt, " -mfpr-64"); break;
6444 case EF_FRV_FPR_NONE: strcat (old_opt, " -msoft-float"); break;
6445 }
6446 }
6447
6448 /* Warn if different dword support was used. Note, 0 means nothing is
6449 said about the dword support. */
6450 new_partial = (new_flags & EF_FRV_DWORD_MASK);
6451 old_partial = (old_flags & EF_FRV_DWORD_MASK);
6452 if (new_partial == old_partial)
6453 ;
6454
6455 else if (new_partial == 0)
6456 ;
6457
6458 else if (old_partial == 0)
6459 old_flags |= new_partial;
6460
6461 else
6462 {
6463 switch (new_partial)
6464 {
6465 default: strcat (new_opt, " -mdword-?"); break;
6466 case EF_FRV_DWORD_YES: strcat (new_opt, " -mdword"); break;
6467 case EF_FRV_DWORD_NO: strcat (new_opt, " -mno-dword"); break;
6468 }
6469
6470 switch (old_partial)
6471 {
6472 default: strcat (old_opt, " -mdword-?"); break;
6473 case EF_FRV_DWORD_YES: strcat (old_opt, " -mdword"); break;
6474 case EF_FRV_DWORD_NO: strcat (old_opt, " -mno-dword"); break;
6475 }
6476 }
6477
6478 /* Or in flags that accumulate (ie, if one module uses it, mark that the
6479 feature is used. */
6480 old_flags |= new_flags & (EF_FRV_DOUBLE
6481 | EF_FRV_MEDIA
6482 | EF_FRV_MULADD
6483 | EF_FRV_NON_PIC_RELOCS);
6484
6485 /* If any module was compiled without -G0, clear the G0 bit. */
6486 old_flags = ((old_flags & ~ EF_FRV_G0)
6487 | (old_flags & new_flags & EF_FRV_G0));
6488
6489 /* If any module was compiled without -mnopack, clear the mnopack bit. */
6490 old_flags = ((old_flags & ~ EF_FRV_NOPACK)
6491 | (old_flags & new_flags & EF_FRV_NOPACK));
6492
6493 /* We don't have to do anything if the pic flags are the same, or the new
6494 module(s) were compiled with -mlibrary-pic. */
6495 new_partial = (new_flags & EF_FRV_PIC_FLAGS);
6496 old_partial = (old_flags & EF_FRV_PIC_FLAGS);
6497 if ((new_partial == old_partial) || ((new_partial & EF_FRV_LIBPIC) != 0))
6498 ;
6499
6500 /* If the old module(s) were compiled with -mlibrary-pic, copy in the pic
6501 flags if any from the new module. */
6502 else if ((old_partial & EF_FRV_LIBPIC) != 0)
6503 old_flags = (old_flags & ~ EF_FRV_PIC_FLAGS) | new_partial;
6504
6505 /* If we have mixtures of -fpic and -fPIC, or in both bits. */
6506 else if (new_partial != 0 && old_partial != 0)
6507 old_flags |= new_partial;
6508
6509 /* One module was compiled for pic and the other was not, see if we have
6510 had any relocations that are not pic-safe. */
6511 else
6512 {
6513 if ((old_flags & EF_FRV_NON_PIC_RELOCS) == 0)
6514 old_flags |= new_partial;
6515 else
6516 {
6517 old_flags &= ~ EF_FRV_PIC_FLAGS;
6518 #ifndef FRV_NO_PIC_ERROR
6519 error = TRUE;
6520 (*_bfd_error_handler)
6521 (_("%s: compiled with %s and linked with modules that use non-pic relocations"),
6522 bfd_get_filename (ibfd),
6523 (new_flags & EF_FRV_BIGPIC) ? "-fPIC" : "-fpic");
6524 #endif
6525 }
6526 }
6527
6528 /* Warn if different cpu is used (allow a specific cpu to override
6529 the generic cpu). */
6530 new_partial = (new_flags & EF_FRV_CPU_MASK);
6531 old_partial = (old_flags & EF_FRV_CPU_MASK);
6532 if (frv_elf_arch_extension_p (new_partial, old_partial))
6533 ;
6534
6535 else if (frv_elf_arch_extension_p (old_partial, new_partial))
6536 old_flags = (old_flags & ~EF_FRV_CPU_MASK) | new_partial;
6537
6538 else
6539 {
6540 switch (new_partial)
6541 {
6542 default: strcat (new_opt, " -mcpu=?"); break;
6543 case EF_FRV_CPU_GENERIC: strcat (new_opt, " -mcpu=frv"); break;
6544 case EF_FRV_CPU_SIMPLE: strcat (new_opt, " -mcpu=simple"); break;
6545 case EF_FRV_CPU_FR550: strcat (new_opt, " -mcpu=fr550"); break;
6546 case EF_FRV_CPU_FR500: strcat (new_opt, " -mcpu=fr500"); break;
6547 case EF_FRV_CPU_FR450: strcat (new_opt, " -mcpu=fr450"); break;
6548 case EF_FRV_CPU_FR405: strcat (new_opt, " -mcpu=fr405"); break;
6549 case EF_FRV_CPU_FR400: strcat (new_opt, " -mcpu=fr400"); break;
6550 case EF_FRV_CPU_FR300: strcat (new_opt, " -mcpu=fr300"); break;
6551 case EF_FRV_CPU_TOMCAT: strcat (new_opt, " -mcpu=tomcat"); break;
6552 }
6553
6554 switch (old_partial)
6555 {
6556 default: strcat (old_opt, " -mcpu=?"); break;
6557 case EF_FRV_CPU_GENERIC: strcat (old_opt, " -mcpu=frv"); break;
6558 case EF_FRV_CPU_SIMPLE: strcat (old_opt, " -mcpu=simple"); break;
6559 case EF_FRV_CPU_FR550: strcat (old_opt, " -mcpu=fr550"); break;
6560 case EF_FRV_CPU_FR500: strcat (old_opt, " -mcpu=fr500"); break;
6561 case EF_FRV_CPU_FR450: strcat (old_opt, " -mcpu=fr450"); break;
6562 case EF_FRV_CPU_FR405: strcat (old_opt, " -mcpu=fr405"); break;
6563 case EF_FRV_CPU_FR400: strcat (old_opt, " -mcpu=fr400"); break;
6564 case EF_FRV_CPU_FR300: strcat (old_opt, " -mcpu=fr300"); break;
6565 case EF_FRV_CPU_TOMCAT: strcat (old_opt, " -mcpu=tomcat"); break;
6566 }
6567 }
6568
6569 /* Print out any mismatches from above. */
6570 if (new_opt[0])
6571 {
6572 error = TRUE;
6573 (*_bfd_error_handler)
6574 (_("%s: compiled with %s and linked with modules compiled with %s"),
6575 bfd_get_filename (ibfd), new_opt, old_opt);
6576 }
6577
6578 /* Warn about any other mismatches */
6579 new_partial = (new_flags & ~ EF_FRV_ALL_FLAGS);
6580 old_partial = (old_flags & ~ EF_FRV_ALL_FLAGS);
6581 if (new_partial != old_partial)
6582 {
6583 old_flags |= new_partial;
6584 error = TRUE;
6585 (*_bfd_error_handler)
6586 (_("%s: uses different unknown e_flags (0x%lx) fields than previous modules (0x%lx)"),
6587 bfd_get_filename (ibfd), (long)new_partial, (long)old_partial);
6588 }
6589 }
6590
6591 /* If the cpu is -mcpu=simple, then set the -mnopack bit. */
6592 if ((old_flags & EF_FRV_CPU_MASK) == EF_FRV_CPU_SIMPLE)
6593 old_flags |= EF_FRV_NOPACK;
6594
6595 /* Update the old flags now with changes made above. */
6596 old_partial = elf_elfheader (obfd)->e_flags & EF_FRV_CPU_MASK;
6597 elf_elfheader (obfd)->e_flags = old_flags;
6598 if (old_partial != (old_flags & EF_FRV_CPU_MASK))
6599 bfd_default_set_arch_mach (obfd, bfd_arch_frv, elf32_frv_machine (obfd));
6600
6601 if (((new_flags & EF_FRV_FDPIC) == 0)
6602 != (! IS_FDPIC (ibfd)))
6603 {
6604 error = TRUE;
6605 if (IS_FDPIC (obfd))
6606 (*_bfd_error_handler)
6607 (_("%s: cannot link non-fdpic object file into fdpic executable"),
6608 bfd_get_filename (ibfd));
6609 else
6610 (*_bfd_error_handler)
6611 (_("%s: cannot link fdpic object file into non-fdpic executable"),
6612 bfd_get_filename (ibfd));
6613 }
6614
6615 if (error)
6616 bfd_set_error (bfd_error_bad_value);
6617
6618 return !error;
6619 }
6620
6621 \f
6622 static bfd_boolean
6623 frv_elf_print_private_bfd_data (bfd *abfd, void * ptr)
6624 {
6625 FILE *file = (FILE *) ptr;
6626 flagword flags;
6627
6628 BFD_ASSERT (abfd != NULL && ptr != NULL);
6629
6630 /* Print normal ELF private data. */
6631 _bfd_elf_print_private_bfd_data (abfd, ptr);
6632
6633 flags = elf_elfheader (abfd)->e_flags;
6634 fprintf (file, _("private flags = 0x%lx:"), (unsigned long) flags);
6635
6636 switch (flags & EF_FRV_CPU_MASK)
6637 {
6638 default: break;
6639 case EF_FRV_CPU_SIMPLE: fprintf (file, " -mcpu=simple"); break;
6640 case EF_FRV_CPU_FR550: fprintf (file, " -mcpu=fr550"); break;
6641 case EF_FRV_CPU_FR500: fprintf (file, " -mcpu=fr500"); break;
6642 case EF_FRV_CPU_FR450: fprintf (file, " -mcpu=fr450"); break;
6643 case EF_FRV_CPU_FR405: fprintf (file, " -mcpu=fr405"); break;
6644 case EF_FRV_CPU_FR400: fprintf (file, " -mcpu=fr400"); break;
6645 case EF_FRV_CPU_FR300: fprintf (file, " -mcpu=fr300"); break;
6646 case EF_FRV_CPU_TOMCAT: fprintf (file, " -mcpu=tomcat"); break;
6647 }
6648
6649 switch (flags & EF_FRV_GPR_MASK)
6650 {
6651 default: break;
6652 case EF_FRV_GPR_32: fprintf (file, " -mgpr-32"); break;
6653 case EF_FRV_GPR_64: fprintf (file, " -mgpr-64"); break;
6654 }
6655
6656 switch (flags & EF_FRV_FPR_MASK)
6657 {
6658 default: break;
6659 case EF_FRV_FPR_32: fprintf (file, " -mfpr-32"); break;
6660 case EF_FRV_FPR_64: fprintf (file, " -mfpr-64"); break;
6661 case EF_FRV_FPR_NONE: fprintf (file, " -msoft-float"); break;
6662 }
6663
6664 switch (flags & EF_FRV_DWORD_MASK)
6665 {
6666 default: break;
6667 case EF_FRV_DWORD_YES: fprintf (file, " -mdword"); break;
6668 case EF_FRV_DWORD_NO: fprintf (file, " -mno-dword"); break;
6669 }
6670
6671 if (flags & EF_FRV_DOUBLE)
6672 fprintf (file, " -mdouble");
6673
6674 if (flags & EF_FRV_MEDIA)
6675 fprintf (file, " -mmedia");
6676
6677 if (flags & EF_FRV_MULADD)
6678 fprintf (file, " -mmuladd");
6679
6680 if (flags & EF_FRV_PIC)
6681 fprintf (file, " -fpic");
6682
6683 if (flags & EF_FRV_BIGPIC)
6684 fprintf (file, " -fPIC");
6685
6686 if (flags & EF_FRV_LIBPIC)
6687 fprintf (file, " -mlibrary-pic");
6688
6689 if (flags & EF_FRV_FDPIC)
6690 fprintf (file, " -mfdpic");
6691
6692 if (flags & EF_FRV_NON_PIC_RELOCS)
6693 fprintf (file, " non-pic relocations");
6694
6695 if (flags & EF_FRV_G0)
6696 fprintf (file, " -G0");
6697
6698 fputc ('\n', file);
6699 return TRUE;
6700 }
6701
6702 \f
6703 /* Support for core dump NOTE sections. */
6704
6705 static bfd_boolean
6706 elf32_frv_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
6707 {
6708 int offset;
6709 unsigned int raw_size;
6710
6711 switch (note->descsz)
6712 {
6713 default:
6714 return FALSE;
6715
6716 /* The Linux/FRV elf_prstatus struct is 268 bytes long. The other
6717 hardcoded offsets and sizes listed below (and contained within
6718 this lexical block) refer to fields in the target's elf_prstatus
6719 struct. */
6720 case 268:
6721 /* `pr_cursig' is at offset 12. */
6722 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
6723
6724 /* `pr_pid' is at offset 24. */
6725 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
6726
6727 /* `pr_reg' is at offset 72. */
6728 offset = 72;
6729
6730 /* Most grok_prstatus implementations set `raw_size' to the size
6731 of the pr_reg field. For Linux/FRV, we set `raw_size' to be
6732 the size of `pr_reg' plus the size of `pr_exec_fdpic_loadmap'
6733 and `pr_interp_fdpic_loadmap', both of which (by design)
6734 immediately follow `pr_reg'. This will allow these fields to
6735 be viewed by GDB as registers.
6736
6737 `pr_reg' is 184 bytes long. `pr_exec_fdpic_loadmap' and
6738 `pr_interp_fdpic_loadmap' are 4 bytes each. */
6739 raw_size = 184 + 4 + 4;
6740
6741 break;
6742 }
6743
6744 /* Make a ".reg/999" section. */
6745 return _bfd_elfcore_make_pseudosection (abfd, ".reg", raw_size,
6746 note->descpos + offset);
6747 }
6748
6749 static bfd_boolean
6750 elf32_frv_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
6751 {
6752 switch (note->descsz)
6753 {
6754 default:
6755 return FALSE;
6756
6757 /* The Linux/FRV elf_prpsinfo struct is 124 bytes long. */
6758 case 124:
6759
6760 /* `pr_fname' is found at offset 28 and is 16 bytes long. */
6761 elf_tdata (abfd)->core->program
6762 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
6763
6764 /* `pr_psargs' is found at offset 44 and is 80 bytes long. */
6765 elf_tdata (abfd)->core->command
6766 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
6767 }
6768
6769 /* Note that for some reason, a spurious space is tacked
6770 onto the end of the args in some (at least one anyway)
6771 implementations, so strip it off if it exists. */
6772
6773 {
6774 char *command = elf_tdata (abfd)->core->command;
6775 int n = strlen (command);
6776
6777 if (0 < n && command[n - 1] == ' ')
6778 command[n - 1] = '\0';
6779 }
6780
6781 return TRUE;
6782 }
6783 #define ELF_ARCH bfd_arch_frv
6784 #define ELF_TARGET_ID FRV_ELF_DATA
6785 #define ELF_MACHINE_CODE EM_CYGNUS_FRV
6786 #define ELF_MAXPAGESIZE 0x1000
6787
6788 #define TARGET_BIG_SYM frv_elf32_vec
6789 #define TARGET_BIG_NAME "elf32-frv"
6790
6791 #define elf_info_to_howto frv_info_to_howto_rela
6792 #define elf_backend_relocate_section elf32_frv_relocate_section
6793 #define elf_backend_gc_mark_hook elf32_frv_gc_mark_hook
6794 #define elf_backend_check_relocs elf32_frv_check_relocs
6795 #define elf_backend_object_p elf32_frv_object_p
6796 #define elf_backend_add_symbol_hook elf32_frv_add_symbol_hook
6797
6798 #define elf_backend_stack_align 8
6799 #define elf_backend_can_gc_sections 1
6800 #define elf_backend_rela_normal 1
6801
6802 #define bfd_elf32_bfd_reloc_type_lookup frv_reloc_type_lookup
6803 #define bfd_elf32_bfd_reloc_name_lookup frv_reloc_name_lookup
6804 #define bfd_elf32_bfd_set_private_flags frv_elf_set_private_flags
6805 #define bfd_elf32_bfd_merge_private_bfd_data frv_elf_merge_private_bfd_data
6806 #define bfd_elf32_bfd_print_private_bfd_data frv_elf_print_private_bfd_data
6807
6808 #define elf_backend_want_got_sym 1
6809 #define elf_backend_got_header_size 0
6810 #define elf_backend_want_got_plt 0
6811 #define elf_backend_plt_readonly 1
6812 #define elf_backend_want_plt_sym 0
6813 #define elf_backend_plt_header_size 0
6814
6815 #define elf_backend_finish_dynamic_sections \
6816 elf32_frv_finish_dynamic_sections
6817
6818 #define elf_backend_grok_prstatus elf32_frv_grok_prstatus
6819 #define elf_backend_grok_psinfo elf32_frv_grok_psinfo
6820
6821 #include "elf32-target.h"
6822
6823 #undef ELF_MAXPAGESIZE
6824 #define ELF_MAXPAGESIZE 0x4000
6825
6826 #undef TARGET_BIG_SYM
6827 #define TARGET_BIG_SYM frv_elf32_fdpic_vec
6828 #undef TARGET_BIG_NAME
6829 #define TARGET_BIG_NAME "elf32-frvfdpic"
6830 #undef elf32_bed
6831 #define elf32_bed elf32_frvfdpic_bed
6832
6833 #undef elf_info_to_howto_rel
6834 #define elf_info_to_howto_rel frvfdpic_info_to_howto_rel
6835
6836 #undef bfd_elf32_bfd_link_hash_table_create
6837 #define bfd_elf32_bfd_link_hash_table_create \
6838 frvfdpic_elf_link_hash_table_create
6839 #undef elf_backend_always_size_sections
6840 #define elf_backend_always_size_sections \
6841 elf32_frvfdpic_always_size_sections
6842
6843 #undef elf_backend_create_dynamic_sections
6844 #define elf_backend_create_dynamic_sections \
6845 elf32_frvfdpic_create_dynamic_sections
6846 #undef elf_backend_adjust_dynamic_symbol
6847 #define elf_backend_adjust_dynamic_symbol \
6848 elf32_frvfdpic_adjust_dynamic_symbol
6849 #undef elf_backend_size_dynamic_sections
6850 #define elf_backend_size_dynamic_sections \
6851 elf32_frvfdpic_size_dynamic_sections
6852 #undef bfd_elf32_bfd_relax_section
6853 #define bfd_elf32_bfd_relax_section \
6854 elf32_frvfdpic_relax_section
6855 #undef elf_backend_finish_dynamic_symbol
6856 #define elf_backend_finish_dynamic_symbol \
6857 elf32_frvfdpic_finish_dynamic_symbol
6858 #undef elf_backend_finish_dynamic_sections
6859 #define elf_backend_finish_dynamic_sections \
6860 elf32_frvfdpic_finish_dynamic_sections
6861
6862 #undef elf_backend_discard_info
6863 #define elf_backend_discard_info \
6864 frvfdpic_elf_discard_info
6865 #undef elf_backend_can_make_relative_eh_frame
6866 #define elf_backend_can_make_relative_eh_frame \
6867 frvfdpic_elf_use_relative_eh_frame
6868 #undef elf_backend_can_make_lsda_relative_eh_frame
6869 #define elf_backend_can_make_lsda_relative_eh_frame \
6870 frvfdpic_elf_use_relative_eh_frame
6871 #undef elf_backend_encode_eh_address
6872 #define elf_backend_encode_eh_address \
6873 frvfdpic_elf_encode_eh_address
6874
6875 #undef elf_backend_may_use_rel_p
6876 #define elf_backend_may_use_rel_p 1
6877 #undef elf_backend_may_use_rela_p
6878 #define elf_backend_may_use_rela_p 1
6879 /* We use REL for dynamic relocations only. */
6880 #undef elf_backend_default_use_rela_p
6881 #define elf_backend_default_use_rela_p 1
6882
6883 #undef elf_backend_omit_section_dynsym
6884 #define elf_backend_omit_section_dynsym _frvfdpic_link_omit_section_dynsym
6885
6886 #include "elf32-target.h"
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