1 /* Or1k-specific support for 32-bit ELF.
2 Copyright (C) 2001-2020 Free Software Foundation, Inc.
3 Contributed for OR32 by Johan Rydberg, jrydberg@opencores.org
5 PIC parts added by Stefan Kristiansson, stefan.kristiansson@saunalahti.fi,
6 largely based on elf32-m32r.c and elf32-microblaze.c.
8 This file is part of BFD, the Binary File Descriptor library.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, see <http://www.gnu.org/licenses/>. */
28 #include "libiberty.h"
30 #define N_ONES(X) (((bfd_vma)2 << (X)) - 1)
32 #define PLT_ENTRY_SIZE 16
34 #define OR1K_MOVHI(D) (0x18000000 | (D << 21))
35 #define OR1K_ADRP(D) (0x08000000 | (D << 21))
36 #define OR1K_LWZ(D,A) (0x84000000 | (D << 21) | (A << 16))
37 #define OR1K_ORI0(D) (0xA8000000 | (D << 21))
38 #define OR1K_JR(B) (0x44000000 | (B << 11))
39 #define OR1K_NOP 0x15000000
41 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
43 static reloc_howto_type or1k_elf_howto_table
[] =
45 /* This reloc does nothing. */
46 HOWTO (R_OR1K_NONE
, /* type */
48 3, /* size (0 = byte, 1 = short, 2 = long) */
50 FALSE
, /* pc_relative */
52 complain_overflow_dont
, /* complain_on_overflow */
53 bfd_elf_generic_reloc
, /* special_function */
54 "R_OR1K_NONE", /* name */
55 FALSE
, /* partial_inplace */
58 FALSE
), /* pcrel_offset */
62 2, /* size (0 = byte, 1 = short, 2 = long) */
64 FALSE
, /* pc_relative */
66 complain_overflow_unsigned
, /* complain_on_overflow */
67 bfd_elf_generic_reloc
, /* special_function */
68 "R_OR1K_32", /* name */
69 FALSE
, /* partial_inplace */
71 0xffffffff, /* dst_mask */
72 FALSE
), /* pcrel_offset */
76 1, /* size (0 = byte, 1 = short, 2 = long) */
78 FALSE
, /* pc_relative */
80 complain_overflow_unsigned
, /* complain_on_overflow */
81 bfd_elf_generic_reloc
, /* special_function */
82 "R_OR1K_16", /* name */
83 FALSE
, /* partial_inplace */
85 0xffff, /* dst_mask */
86 FALSE
), /* pcrel_offset */
90 0, /* size (0 = byte, 1 = short, 2 = long) */
92 FALSE
, /* pc_relative */
94 complain_overflow_unsigned
, /* complain_on_overflow */
95 bfd_elf_generic_reloc
, /* special_function */
96 "R_OR1K_8", /* name */
97 FALSE
, /* partial_inplace */
100 FALSE
), /* pcrel_offset */
102 HOWTO (R_OR1K_LO_16_IN_INSN
, /* type */
104 2, /* size (0 = byte, 1 = short, 2 = long) */
106 FALSE
, /* pc_relative */
108 complain_overflow_dont
, /* complain_on_overflow */
109 bfd_elf_generic_reloc
, /* special_function */
110 "R_OR1K_LO_16_IN_INSN", /* name */
111 FALSE
, /* partial_inplace */
113 0x0000ffff, /* dst_mask */
114 FALSE
), /* pcrel_offset */
116 HOWTO (R_OR1K_HI_16_IN_INSN
, /* type */
118 2, /* size (0 = byte, 1 = short, 2 = long) */
120 FALSE
, /* pc_relative */
122 complain_overflow_dont
, /* complain_on_overflow */
123 bfd_elf_generic_reloc
, /* special_function */
124 "R_OR1K_HI_16_IN_INSN", /* name */
125 FALSE
, /* partial_inplace */
127 0x0000ffff, /* dst_mask */
128 FALSE
), /* pcrel_offset */
130 /* A PC relative 26 bit relocation, right shifted by 2. */
131 HOWTO (R_OR1K_INSN_REL_26
, /* type */
133 2, /* size (0 = byte, 1 = short, 2 = long) */
135 TRUE
, /* pc_relative */
137 complain_overflow_signed
, /* complain_on_overflow */
138 bfd_elf_generic_reloc
, /* special_function */
139 "R_OR1K_INSN_REL_26", /* name */
140 FALSE
, /* partial_inplace */
142 0x03ffffff, /* dst_mask */
143 TRUE
), /* pcrel_offset */
145 /* GNU extension to record C++ vtable hierarchy. */
146 HOWTO (R_OR1K_GNU_VTINHERIT
, /* type */
148 2, /* size (0 = byte, 1 = short, 2 = long) */
150 FALSE
, /* pc_relative */
152 complain_overflow_dont
, /* complain_on_overflow */
153 NULL
, /* special_function */
154 "R_OR1K_GNU_VTINHERIT", /* name */
155 FALSE
, /* partial_inplace */
158 FALSE
), /* pcrel_offset */
160 /* GNU extension to record C++ vtable member usage. */
161 HOWTO (R_OR1K_GNU_VTENTRY
, /* type */
163 2, /* size (0 = byte, 1 = short, 2 = long) */
165 FALSE
, /* pc_relative */
167 complain_overflow_dont
, /* complain_on_overflow */
168 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
169 "R_OR1K_GNU_VTENTRY", /* name */
170 FALSE
, /* partial_inplace */
173 FALSE
), /* pcrel_offset */
175 HOWTO (R_OR1K_32_PCREL
,
177 2, /* size (0 = byte, 1 = short, 2 = long) */
179 TRUE
, /* pc_relative */
181 complain_overflow_signed
, /* complain_on_overflow */
182 bfd_elf_generic_reloc
, /* special_function */
183 "R_OR1K_32_PCREL", /* name */
184 FALSE
, /* partial_inplace */
186 0xffffffff, /* dst_mask */
187 TRUE
), /* pcrel_offset */
189 HOWTO (R_OR1K_16_PCREL
,
191 1, /* size (0 = byte, 1 = short, 2 = long) */
193 TRUE
, /* pc_relative */
195 complain_overflow_signed
, /* complain_on_overflow */
196 bfd_elf_generic_reloc
, /* special_function */
197 "R_OR1K_16_PCREL", /* name */
198 FALSE
, /* partial_inplace */
200 0xffff, /* dst_mask */
201 TRUE
), /* pcrel_offset */
203 HOWTO (R_OR1K_8_PCREL
,
205 0, /* size (0 = byte, 1 = short, 2 = long) */
207 TRUE
, /* pc_relative */
209 complain_overflow_signed
, /* complain_on_overflow */
210 bfd_elf_generic_reloc
, /* special_function */
211 "R_OR1K_8_PCREL", /* name */
212 FALSE
, /* partial_inplace */
215 TRUE
), /* pcrel_offset */
217 HOWTO (R_OR1K_GOTPC_HI16
, /* Type. */
218 16, /* Rightshift. */
219 2, /* Size (0 = byte, 1 = short, 2 = long). */
221 TRUE
, /* PC_relative. */
223 complain_overflow_dont
, /* Complain on overflow. */
224 bfd_elf_generic_reloc
, /* Special Function. */
225 "R_OR1K_GOTPC_HI16", /* Name. */
226 FALSE
, /* Partial Inplace. */
227 0, /* Source Mask. */
228 0xffff, /* Dest Mask. */
229 TRUE
), /* PC relative offset? */
231 HOWTO (R_OR1K_GOTPC_LO16
, /* Type. */
233 2, /* Size (0 = byte, 1 = short, 2 = long). */
235 TRUE
, /* PC_relative. */
237 complain_overflow_dont
, /* Complain on overflow. */
238 bfd_elf_generic_reloc
, /* Special Function. */
239 "R_OR1K_GOTPC_LO16", /* Name. */
240 FALSE
, /* Partial Inplace. */
241 0, /* Source Mask. */
242 0xffff, /* Dest Mask. */
243 TRUE
), /* PC relative offset? */
245 HOWTO (R_OR1K_GOT16
, /* type */
247 2, /* size (0 = byte, 1 = short, 2 = long) */
249 FALSE
, /* pc_relative */
251 complain_overflow_signed
, /* complain_on_overflow */
252 bfd_elf_generic_reloc
, /* special_function */
253 "R_OR1K_GOT16", /* name */
254 FALSE
, /* partial_inplace */
256 0xffff, /* dst_mask */
257 FALSE
), /* pcrel_offset */
259 /* A 26 bit PLT relocation. Shifted by 2. */
260 HOWTO (R_OR1K_PLT26
, /* Type. */
262 2, /* Size (0 = byte, 1 = short, 2 = long). */
264 TRUE
, /* pc_relative. */
266 complain_overflow_signed
, /* Complain on overflow. */
267 bfd_elf_generic_reloc
, /* Special Function. */
268 "R_OR1K_PLT26", /* Name. */
269 FALSE
, /* Partial Inplace. */
270 0, /* Source Mask. */
271 0x03ffffff, /* Dest Mask. */
272 TRUE
), /* PC relative offset? */
274 HOWTO (R_OR1K_GOTOFF_HI16
, /* type */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
278 FALSE
, /* pc_relative */
280 complain_overflow_dont
, /* complain_on_overflow */
281 bfd_elf_generic_reloc
, /* special_function */
282 "R_OR1K_GOTOFF_HI16", /* name */
283 FALSE
, /* partial_inplace */
285 0xffff, /* dst_mask */
286 FALSE
), /* pcrel_offset */
288 HOWTO (R_OR1K_GOTOFF_LO16
, /* type */
290 2, /* size (0 = byte, 1 = short, 2 = long) */
292 FALSE
, /* pc_relative */
294 complain_overflow_dont
, /* complain_on_overflow */
295 bfd_elf_generic_reloc
, /* special_function */
296 "R_OR1K_GOTOFF_LO16", /* name */
297 FALSE
, /* partial_inplace */
299 0xffff, /* dst_mask */
300 FALSE
), /* pcrel_offset */
302 HOWTO (R_OR1K_COPY
, /* type */
304 2, /* size (0 = byte, 1 = short, 2 = long) */
306 FALSE
, /* pc_relative */
308 complain_overflow_bitfield
, /* complain_on_overflow */
309 bfd_elf_generic_reloc
, /* special_function */
310 "R_OR1K_COPY", /* name */
311 FALSE
, /* partial_inplace */
312 0xffffffff, /* src_mask */
313 0xffffffff, /* dst_mask */
314 FALSE
), /* pcrel_offset */
316 HOWTO (R_OR1K_GLOB_DAT
, /* type */
318 2, /* size (0 = byte, 1 = short, 2 = long) */
320 FALSE
, /* pc_relative */
322 complain_overflow_bitfield
, /* complain_on_overflow */
323 bfd_elf_generic_reloc
, /* special_function */
324 "R_OR1K_GLOB_DAT", /* name */
325 FALSE
, /* partial_inplace */
326 0xffffffff, /* src_mask */
327 0xffffffff, /* dst_mask */
328 FALSE
), /* pcrel_offset */
330 HOWTO (R_OR1K_JMP_SLOT
, /* type */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
334 FALSE
, /* pc_relative */
336 complain_overflow_bitfield
, /* complain_on_overflow */
337 bfd_elf_generic_reloc
, /* special_function */
338 "R_OR1K_JMP_SLOT", /* name */
339 FALSE
, /* partial_inplace */
340 0xffffffff, /* src_mask */
341 0xffffffff, /* dst_mask */
342 FALSE
), /* pcrel_offset */
344 HOWTO (R_OR1K_RELATIVE
, /* type */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
348 FALSE
, /* pc_relative */
350 complain_overflow_bitfield
, /* complain_on_overflow */
351 bfd_elf_generic_reloc
, /* special_function */
352 "R_OR1K_RELATIVE", /* name */
353 FALSE
, /* partial_inplace */
354 0xffffffff, /* src_mask */
355 0xffffffff, /* dst_mask */
356 FALSE
), /* pcrel_offset */
358 HOWTO (R_OR1K_TLS_GD_HI16
, /* type */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
362 FALSE
, /* pc_relative */
364 complain_overflow_dont
, /* complain_on_overflow */
365 bfd_elf_generic_reloc
, /* special_function */
366 "R_OR1K_TLS_GD_HI16", /* name */
367 FALSE
, /* partial_inplace */
369 0xffff, /* dst_mask */
370 FALSE
), /* pcrel_offset */
372 HOWTO (R_OR1K_TLS_GD_LO16
, /* type */
374 2, /* size (0 = byte, 1 = short, 2 = long) */
376 FALSE
, /* pc_relative */
378 complain_overflow_dont
, /* complain_on_overflow */
379 bfd_elf_generic_reloc
, /* special_function */
380 "R_OR1K_TLS_GD_LO16", /* name */
381 FALSE
, /* partial_inplace */
383 0xffff, /* dst_mask */
384 FALSE
), /* pcrel_offset */
386 HOWTO (R_OR1K_TLS_LDM_HI16
, /* type */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
390 FALSE
, /* pc_relative */
392 complain_overflow_dont
, /* complain_on_overflow */
393 bfd_elf_generic_reloc
, /* special_function */
394 "R_OR1K_TLS_LDM_HI16", /* name */
395 FALSE
, /* partial_inplace */
397 0xffff, /* dst_mask */
398 FALSE
), /* pcrel_offset */
400 HOWTO (R_OR1K_TLS_LDM_LO16
, /* type */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
404 FALSE
, /* pc_relative */
406 complain_overflow_dont
, /* complain_on_overflow */
407 bfd_elf_generic_reloc
, /* special_function */
408 "R_OR1K_TLS_LDM_LO16", /* name */
409 FALSE
, /* partial_inplace */
411 0xffff, /* dst_mask */
412 FALSE
), /* pcrel_offset */
414 HOWTO (R_OR1K_TLS_LDO_HI16
, /* type */
416 2, /* size (0 = byte, 1 = short, 2 = long) */
418 FALSE
, /* pc_relative */
420 complain_overflow_dont
, /* complain_on_overflow */
421 bfd_elf_generic_reloc
, /* special_function */
422 "R_OR1K_TLS_LDO_HI16", /* name */
423 FALSE
, /* partial_inplace */
425 0xffff, /* dst_mask */
426 FALSE
), /* pcrel_offset */
428 HOWTO (R_OR1K_TLS_LDO_LO16
, /* type */
430 2, /* size (0 = byte, 1 = short, 2 = long) */
432 FALSE
, /* pc_relative */
434 complain_overflow_dont
, /* complain_on_overflow */
435 bfd_elf_generic_reloc
, /* special_function */
436 "R_OR1K_TLS_LDO_LO16", /* name */
437 FALSE
, /* partial_inplace */
439 0xffff, /* dst_mask */
440 FALSE
), /* pcrel_offset */
442 HOWTO (R_OR1K_TLS_IE_HI16
, /* type */
444 2, /* size (0 = byte, 1 = short, 2 = long) */
446 FALSE
, /* pc_relative */
448 complain_overflow_dont
, /* complain_on_overflow */
449 bfd_elf_generic_reloc
, /* special_function */
450 "R_OR1K_TLS_IE_HI16", /* name */
451 FALSE
, /* partial_inplace */
453 0xffff, /* dst_mask */
454 FALSE
), /* pcrel_offset */
456 HOWTO (R_OR1K_TLS_IE_LO16
, /* type */
458 2, /* size (0 = byte, 1 = short, 2 = long) */
460 FALSE
, /* pc_relative */
462 complain_overflow_dont
, /* complain_on_overflow */
463 bfd_elf_generic_reloc
, /* special_function */
464 "R_OR1K_TLS_IE_LO16", /* name */
465 FALSE
, /* partial_inplace */
467 0xffff, /* dst_mask */
468 FALSE
), /* pcrel_offset */
470 HOWTO (R_OR1K_TLS_LE_HI16
, /* type */
472 2, /* size (0 = byte, 1 = short, 2 = long) */
474 FALSE
, /* pc_relative */
476 complain_overflow_dont
, /* complain_on_overflow */
477 bfd_elf_generic_reloc
, /* special_function */
478 "R_OR1K_TLS_LE_HI16", /* name */
479 FALSE
, /* partial_inplace */
481 0xffff, /* dst_mask */
482 FALSE
), /* pcrel_offset */
484 HOWTO (R_OR1K_TLS_LE_LO16
, /* type */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
488 FALSE
, /* pc_relative */
490 complain_overflow_dont
, /* complain_on_overflow */
491 bfd_elf_generic_reloc
, /* special_function */
492 "R_OR1K_TLS_LE_LO16", /* name */
493 FALSE
, /* partial_inplace */
495 0xffff, /* dst_mask */
496 FALSE
), /* pcrel_offset */
498 HOWTO (R_OR1K_TLS_TPOFF
, /* type */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
502 FALSE
, /* pc_relative */
504 complain_overflow_bitfield
, /* complain_on_overflow */
505 bfd_elf_generic_reloc
, /* special_function */
506 "R_OR1K_TLS_TPOFF", /* name */
507 FALSE
, /* partial_inplace */
508 0xffffffff, /* src_mask */
509 0xffffffff, /* dst_mask */
510 FALSE
), /* pcrel_offset */
512 HOWTO (R_OR1K_TLS_DTPOFF
, /* type */
514 2, /* size (0 = byte, 1 = short, 2 = long) */
516 FALSE
, /* pc_relative */
518 complain_overflow_bitfield
, /* complain_on_overflow */
519 bfd_elf_generic_reloc
, /* special_function */
520 "R_OR1K_TLS_DTPOFF", /* name */
521 FALSE
, /* partial_inplace */
522 0xffffffff, /* src_mask */
523 0xffffffff, /* dst_mask */
524 FALSE
), /* pcrel_offset */
526 HOWTO (R_OR1K_TLS_DTPMOD
, /* type */
528 2, /* size (0 = byte, 1 = short, 2 = long) */
530 FALSE
, /* pc_relative */
532 complain_overflow_bitfield
, /* complain_on_overflow */
533 bfd_elf_generic_reloc
, /* special_function */
534 "R_OR1K_TLS_DTPMOD", /* name */
535 FALSE
, /* partial_inplace */
536 0xffffffff, /* src_mask */
537 0xffffffff, /* dst_mask */
538 FALSE
), /* pcrel_offset */
540 HOWTO (R_OR1K_AHI16
, /* type */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
544 FALSE
, /* pc_relative */
546 complain_overflow_dont
, /* complain_on_overflow */
547 bfd_elf_generic_reloc
, /* special_function */
548 "R_OR1K_AHI16", /* name */
549 FALSE
, /* partial_inplace */
551 0xffff, /* dst_mask */
552 FALSE
), /* pcrel_offset */
554 HOWTO (R_OR1K_GOTOFF_AHI16
, /* type */
556 2, /* size (0 = byte, 1 = short, 2 = long) */
558 FALSE
, /* pc_relative */
560 complain_overflow_dont
, /* complain_on_overflow */
561 bfd_elf_generic_reloc
, /* special_function */
562 "R_OR1K_GOTOFF_AHI16", /* name */
563 FALSE
, /* partial_inplace */
565 0xffff, /* dst_mask */
566 FALSE
), /* pcrel_offset */
568 HOWTO (R_OR1K_TLS_IE_AHI16
, /* type */
570 2, /* size (0 = byte, 1 = short, 2 = long) */
572 FALSE
, /* pc_relative */
574 complain_overflow_dont
, /* complain_on_overflow */
575 bfd_elf_generic_reloc
, /* special_function */
576 "R_OR1K_TLS_IE_AHI16", /* name */
577 FALSE
, /* partial_inplace */
579 0xffff, /* dst_mask */
580 FALSE
), /* pcrel_offset */
582 HOWTO (R_OR1K_TLS_LE_AHI16
, /* type */
584 2, /* size (0 = byte, 1 = short, 2 = long) */
586 FALSE
, /* pc_relative */
588 complain_overflow_dont
, /* complain_on_overflow */
589 bfd_elf_generic_reloc
, /* special_function */
590 "R_OR1K_TLS_LE_AHI16", /* name */
591 FALSE
, /* partial_inplace */
593 0xffff, /* dst_mask */
594 FALSE
), /* pcrel_offset */
596 HOWTO (R_OR1K_SLO16
, /* type */
598 2, /* size (0 = byte, 1 = short, 2 = long) */
600 FALSE
, /* pc_relative */
602 complain_overflow_dont
, /* complain_on_overflow */
603 bfd_elf_generic_reloc
, /* special_function */
604 "R_OR1K_SLO16", /* name */
605 FALSE
, /* partial_inplace */
607 0xffff, /* dst_mask */
608 FALSE
), /* pcrel_offset */
610 HOWTO (R_OR1K_GOTOFF_SLO16
, /* type */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
614 FALSE
, /* pc_relative */
616 complain_overflow_dont
, /* complain_on_overflow */
617 bfd_elf_generic_reloc
, /* special_function */
618 "R_OR1K_GOTOFF_SLO16", /* name */
619 FALSE
, /* partial_inplace */
621 0xffff, /* dst_mask */
622 FALSE
), /* pcrel_offset */
624 HOWTO (R_OR1K_TLS_LE_SLO16
, /* type */
626 2, /* size (0 = byte, 1 = short, 2 = long) */
628 FALSE
, /* pc_relative */
630 complain_overflow_dont
, /* complain_on_overflow */
631 bfd_elf_generic_reloc
, /* special_function */
632 "R_OR1K_TLS_LE_SLO16", /* name */
633 FALSE
, /* partial_inplace */
635 0xffff, /* dst_mask */
636 FALSE
), /* pcrel_offset */
638 /* A page relative 21 bit relocation, right shifted by 13, aligned.
639 Note that this is *page* relative, not pc relative. The idea is
640 similar, but normally the section alignment is not such that the
641 assembler can infer a final value, which it attempts to do with
642 pc-relative relocations to local symbols. */
643 HOWTO (R_OR1K_PCREL_PG21
, /* type */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
647 FALSE
, /* pc_relative */
649 complain_overflow_signed
, /* complain_on_overflow */
650 bfd_elf_generic_reloc
, /* special_function */
651 "R_OR1K_PCREL_PG21", /* name */
652 FALSE
, /* partial_inplace */
654 0x001fffff, /* dst_mask */
655 TRUE
), /* pcrel_offset */
657 HOWTO (R_OR1K_GOT_PG21
, /* type */
659 2, /* size (0 = byte, 1 = short, 2 = long) */
661 FALSE
, /* pc_relative */
663 complain_overflow_signed
, /* complain_on_overflow */
664 bfd_elf_generic_reloc
, /* special_function */
665 "R_OR1K_GOT_PG21", /* name */
666 FALSE
, /* partial_inplace */
668 0x001fffff, /* dst_mask */
669 TRUE
), /* pcrel_offset */
671 HOWTO (R_OR1K_TLS_GD_PG21
, /* type */
673 2, /* size (0 = byte, 1 = short, 2 = long) */
675 FALSE
, /* pc_relative */
677 complain_overflow_signed
, /* complain_on_overflow */
678 bfd_elf_generic_reloc
, /* special_function */
679 "R_OR1K_TLS_GD_PG21", /* name */
680 FALSE
, /* partial_inplace */
682 0x001fffff, /* dst_mask */
683 TRUE
), /* pcrel_offset */
685 HOWTO (R_OR1K_TLS_LDM_PG21
, /* type */
687 2, /* size (0 = byte, 1 = short, 2 = long) */
689 FALSE
, /* pc_relative */
691 complain_overflow_signed
, /* complain_on_overflow */
692 bfd_elf_generic_reloc
, /* special_function */
693 "R_OR1K_TLS_LDM_PG21", /* name */
694 FALSE
, /* partial_inplace */
696 0x001fffff, /* dst_mask */
697 TRUE
), /* pcrel_offset */
699 HOWTO (R_OR1K_TLS_IE_PG21
, /* type */
701 2, /* size (0 = byte, 1 = short, 2 = long) */
703 FALSE
, /* pc_relative */
705 complain_overflow_signed
, /* complain_on_overflow */
706 bfd_elf_generic_reloc
, /* special_function */
707 "R_OR1K_TLS_IE_PG21", /* name */
708 FALSE
, /* partial_inplace */
710 0x001fffff, /* dst_mask */
711 TRUE
), /* pcrel_offset */
713 HOWTO (R_OR1K_LO13
, /* type */
715 2, /* size (0 = byte, 1 = short, 2 = long) */
717 FALSE
, /* pc_relative */
719 complain_overflow_dont
, /* complain_on_overflow */
720 bfd_elf_generic_reloc
, /* special_function */
721 "R_OR1K_LO13", /* name */
722 FALSE
, /* partial_inplace */
724 0xffff, /* dst_mask */
725 FALSE
), /* pcrel_offset */
727 HOWTO (R_OR1K_GOT_LO13
, /* type */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
731 FALSE
, /* pc_relative */
733 complain_overflow_dont
, /* complain_on_overflow */
734 bfd_elf_generic_reloc
, /* special_function */
735 "R_OR1K_GOT_LO13", /* name */
736 FALSE
, /* partial_inplace */
738 0xffff, /* dst_mask */
739 FALSE
), /* pcrel_offset */
741 HOWTO (R_OR1K_TLS_GD_LO13
, /* type */
743 2, /* size (0 = byte, 1 = short, 2 = long) */
745 FALSE
, /* pc_relative */
747 complain_overflow_dont
, /* complain_on_overflow */
748 bfd_elf_generic_reloc
, /* special_function */
749 "R_OR1K_TLS_GD_LO13", /* name */
750 FALSE
, /* partial_inplace */
752 0xffff, /* dst_mask */
753 FALSE
), /* pcrel_offset */
755 HOWTO (R_OR1K_TLS_LDM_LO13
, /* type */
757 2, /* size (0 = byte, 1 = short, 2 = long) */
759 FALSE
, /* pc_relative */
761 complain_overflow_dont
, /* complain_on_overflow */
762 bfd_elf_generic_reloc
, /* special_function */
763 "R_OR1K_TLD_LDM_LO13", /* name */
764 FALSE
, /* partial_inplace */
766 0xffff, /* dst_mask */
767 FALSE
), /* pcrel_offset */
769 HOWTO (R_OR1K_TLS_IE_LO13
, /* type */
771 2, /* size (0 = byte, 1 = short, 2 = long) */
773 FALSE
, /* pc_relative */
775 complain_overflow_dont
, /* complain_on_overflow */
776 bfd_elf_generic_reloc
, /* special_function */
777 "R_OR1K_TLS_IE_LO13", /* name */
778 FALSE
, /* partial_inplace */
780 0xffff, /* dst_mask */
781 FALSE
), /* pcrel_offset */
783 HOWTO (R_OR1K_SLO13
, /* type */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
787 FALSE
, /* pc_relative */
789 complain_overflow_dont
, /* complain_on_overflow */
790 bfd_elf_generic_reloc
, /* special_function */
791 "R_OR1K_SLO13", /* name */
792 FALSE
, /* partial_inplace */
794 0xffff, /* dst_mask */
795 FALSE
), /* pcrel_offset */
797 /* A 26 bit PLT relocation, using ADRP. Shifted by 2. */
798 HOWTO (R_OR1K_PLTA26
, /* Type. */
800 2, /* Size (0 = byte, 1 = short, 2 = long). */
802 TRUE
, /* pc_relative. */
804 complain_overflow_signed
, /* Complain on overflow. */
805 bfd_elf_generic_reloc
, /* Special Function. */
806 "R_OR1K_PLTA26", /* Name. */
807 FALSE
, /* Partial Inplace. */
808 0, /* Source Mask. */
809 0x03ffffff, /* Dest Mask. */
810 TRUE
), /* PC relative offset? */
813 /* Map BFD reloc types to Or1k ELF reloc types. */
815 struct or1k_reloc_map
817 bfd_reloc_code_real_type bfd_reloc_val
;
818 unsigned int or1k_reloc_val
;
821 static const struct or1k_reloc_map or1k_reloc_map
[] =
823 { BFD_RELOC_NONE
, R_OR1K_NONE
},
824 { BFD_RELOC_32
, R_OR1K_32
},
825 { BFD_RELOC_16
, R_OR1K_16
},
826 { BFD_RELOC_8
, R_OR1K_8
},
827 { BFD_RELOC_LO16
, R_OR1K_LO_16_IN_INSN
},
828 { BFD_RELOC_HI16
, R_OR1K_HI_16_IN_INSN
},
829 { BFD_RELOC_HI16_S
, R_OR1K_AHI16
},
830 { BFD_RELOC_OR1K_REL_26
, R_OR1K_INSN_REL_26
},
831 { BFD_RELOC_VTABLE_ENTRY
, R_OR1K_GNU_VTENTRY
},
832 { BFD_RELOC_VTABLE_INHERIT
, R_OR1K_GNU_VTINHERIT
},
833 { BFD_RELOC_32_PCREL
, R_OR1K_32_PCREL
},
834 { BFD_RELOC_16_PCREL
, R_OR1K_16_PCREL
},
835 { BFD_RELOC_8_PCREL
, R_OR1K_8_PCREL
},
836 { BFD_RELOC_LO16_GOTOFF
, R_OR1K_GOTOFF_LO16
},
837 { BFD_RELOC_HI16_GOTOFF
, R_OR1K_GOTOFF_HI16
},
838 { BFD_RELOC_HI16_S_GOTOFF
, R_OR1K_GOTOFF_AHI16
},
839 { BFD_RELOC_OR1K_GOTPC_HI16
, R_OR1K_GOTPC_HI16
},
840 { BFD_RELOC_OR1K_GOTPC_LO16
, R_OR1K_GOTPC_LO16
},
841 { BFD_RELOC_OR1K_GOT16
, R_OR1K_GOT16
},
842 { BFD_RELOC_OR1K_PLT26
, R_OR1K_PLT26
},
843 { BFD_RELOC_OR1K_GLOB_DAT
, R_OR1K_GLOB_DAT
},
844 { BFD_RELOC_OR1K_COPY
, R_OR1K_COPY
},
845 { BFD_RELOC_OR1K_JMP_SLOT
, R_OR1K_JMP_SLOT
},
846 { BFD_RELOC_OR1K_RELATIVE
, R_OR1K_RELATIVE
},
847 { BFD_RELOC_OR1K_TLS_GD_HI16
, R_OR1K_TLS_GD_HI16
},
848 { BFD_RELOC_OR1K_TLS_GD_LO16
, R_OR1K_TLS_GD_LO16
},
849 { BFD_RELOC_OR1K_TLS_LDM_HI16
, R_OR1K_TLS_LDM_HI16
},
850 { BFD_RELOC_OR1K_TLS_LDM_LO16
, R_OR1K_TLS_LDM_LO16
},
851 { BFD_RELOC_OR1K_TLS_LDO_HI16
, R_OR1K_TLS_LDO_HI16
},
852 { BFD_RELOC_OR1K_TLS_LDO_LO16
, R_OR1K_TLS_LDO_LO16
},
853 { BFD_RELOC_OR1K_TLS_IE_HI16
, R_OR1K_TLS_IE_HI16
},
854 { BFD_RELOC_OR1K_TLS_IE_LO16
, R_OR1K_TLS_IE_LO16
},
855 { BFD_RELOC_OR1K_TLS_IE_AHI16
, R_OR1K_TLS_IE_AHI16
},
856 { BFD_RELOC_OR1K_TLS_LE_HI16
, R_OR1K_TLS_LE_HI16
},
857 { BFD_RELOC_OR1K_TLS_LE_LO16
, R_OR1K_TLS_LE_LO16
},
858 { BFD_RELOC_OR1K_TLS_LE_AHI16
, R_OR1K_TLS_LE_AHI16
},
859 { BFD_RELOC_OR1K_SLO16
, R_OR1K_SLO16
},
860 { BFD_RELOC_OR1K_GOTOFF_SLO16
, R_OR1K_GOTOFF_SLO16
},
861 { BFD_RELOC_OR1K_TLS_LE_SLO16
, R_OR1K_TLS_LE_SLO16
},
862 { BFD_RELOC_OR1K_PCREL_PG21
, R_OR1K_PCREL_PG21
},
863 { BFD_RELOC_OR1K_GOT_PG21
, R_OR1K_GOT_PG21
},
864 { BFD_RELOC_OR1K_TLS_GD_PG21
, R_OR1K_TLS_GD_PG21
},
865 { BFD_RELOC_OR1K_TLS_LDM_PG21
, R_OR1K_TLS_LDM_PG21
},
866 { BFD_RELOC_OR1K_TLS_IE_PG21
, R_OR1K_TLS_IE_PG21
},
867 { BFD_RELOC_OR1K_LO13
, R_OR1K_LO13
},
868 { BFD_RELOC_OR1K_GOT_LO13
, R_OR1K_GOT_LO13
},
869 { BFD_RELOC_OR1K_TLS_GD_LO13
, R_OR1K_TLS_GD_LO13
},
870 { BFD_RELOC_OR1K_TLS_LDM_LO13
, R_OR1K_TLS_LDM_LO13
},
871 { BFD_RELOC_OR1K_TLS_IE_LO13
, R_OR1K_TLS_IE_LO13
},
872 { BFD_RELOC_OR1K_SLO13
, R_OR1K_SLO13
},
873 { BFD_RELOC_OR1K_PLTA26
, R_OR1K_PLTA26
},
876 /* tls_type is a mask used to track how each symbol is accessed,
877 it may be accessed via multiple types of TLS access methods.
878 We track this for sizing (allocating got + relocation section space) and
879 for how to process relocations. */
880 #define TLS_UNKNOWN 0
887 /* The size of the TLS thread control block, used to offset LE access. */
890 /* ELF linker hash entry. */
891 struct elf_or1k_link_hash_entry
893 struct elf_link_hash_entry root
;
895 /* Track type of TLS access. */
896 unsigned char tls_type
;
899 /* ELF object data. */
900 struct elf_or1k_obj_tdata
902 struct elf_obj_tdata root
;
904 /* tls_type for each local got entry. */
905 unsigned char *local_tls_type
;
908 #define elf_or1k_tdata(abfd) \
909 ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
911 #define elf_or1k_local_tls_type(abfd) \
912 (elf_or1k_tdata (abfd)->local_tls_type)
914 /* ELF linker hash table. */
915 struct elf_or1k_link_hash_table
917 struct elf_link_hash_table root
;
919 /* Small local sym to section mapping cache. */
920 struct sym_cache sym_sec
;
922 bfd_boolean saw_plta
;
925 /* Get the ELF linker hash table from a link_info structure. */
926 #define or1k_elf_hash_table(p) \
927 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
928 == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
931 elf_or1k_mkobject (bfd
*abfd
)
933 return bfd_elf_allocate_object (abfd
, sizeof (struct elf_or1k_obj_tdata
),
937 /* Create an entry in an or1k ELF linker hash table. */
939 static struct bfd_hash_entry
*
940 or1k_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
941 struct bfd_hash_table
*table
,
944 struct elf_or1k_link_hash_entry
*ret
=
945 (struct elf_or1k_link_hash_entry
*) entry
;
947 /* Allocate the structure if it has not already been allocated by a
950 ret
= bfd_hash_allocate (table
,
951 sizeof (struct elf_or1k_link_hash_entry
));
955 /* Call the allocation method of the superclass. */
956 ret
= ((struct elf_or1k_link_hash_entry
*)
957 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
961 struct elf_or1k_link_hash_entry
*eh
;
963 eh
= (struct elf_or1k_link_hash_entry
*) ret
;
964 eh
->tls_type
= TLS_UNKNOWN
;
967 return (struct bfd_hash_entry
*) ret
;
970 /* Create an or1k ELF linker hash table. */
972 static struct bfd_link_hash_table
*
973 or1k_elf_link_hash_table_create (bfd
*abfd
)
975 struct elf_or1k_link_hash_table
*ret
;
976 size_t amt
= sizeof (struct elf_or1k_link_hash_table
);
978 ret
= bfd_zmalloc (amt
);
982 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
983 or1k_elf_link_hash_newfunc
,
984 sizeof (struct elf_or1k_link_hash_entry
),
991 return &ret
->root
.root
;
994 static reloc_howto_type
*
995 or1k_reloc_type_lookup (bfd
* abfd ATTRIBUTE_UNUSED
,
996 bfd_reloc_code_real_type bcode
)
1000 for (i
= 0; i
< ARRAY_SIZE (or1k_reloc_map
); i
++)
1001 if (or1k_reloc_map
[i
].bfd_reloc_val
== bcode
)
1003 unsigned int ocode
= or1k_reloc_map
[i
].or1k_reloc_val
;
1004 if (ocode
< (unsigned int) R_OR1K_max
)
1005 return &or1k_elf_howto_table
[ocode
];
1013 static reloc_howto_type
*
1014 or1k_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
1019 for (i
= 0; i
< R_OR1K_max
; i
++)
1020 if (or1k_elf_howto_table
[i
].name
!= NULL
1021 && strcasecmp (or1k_elf_howto_table
[i
].name
, r_name
) == 0)
1022 return &or1k_elf_howto_table
[i
];
1027 /* Set the howto pointer for an Or1k ELF reloc. */
1030 or1k_info_to_howto_rela (bfd
* abfd
,
1031 arelent
* cache_ptr
,
1032 Elf_Internal_Rela
* dst
)
1034 unsigned int r_type
;
1036 r_type
= ELF32_R_TYPE (dst
->r_info
);
1037 if (r_type
>= (unsigned int) R_OR1K_max
)
1039 /* xgettext:c-format */
1040 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1042 bfd_set_error (bfd_error_bad_value
);
1045 cache_ptr
->howto
= & or1k_elf_howto_table
[r_type
];
1049 /* Return the relocation value for @tpoff relocations.. */
1051 tpoff (struct bfd_link_info
*info
, bfd_vma address
, bfd_boolean dynamic
)
1053 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
1056 /* If tls_sec is NULL, we should have signalled an error already. */
1057 if (htab
->tls_sec
== NULL
)
1061 return address
- htab
->tls_sec
->vma
;
1064 /* On or1k, the tp points to just after the tcb, if we have an alignment
1065 greater than the tcb size we need to offset by the alignment difference. */
1066 base
= align_power ((bfd_vma
) TCB_SIZE
, htab
->tls_sec
->alignment_power
)
1069 /* The thread pointer on or1k stores the address after the TCB where
1070 the data is, just compute the difference. No need to compensate
1071 for the size of TCB. */
1072 return address
- htab
->tls_sec
->vma
+ base
;
1076 /* If we have both IE and GD accesses to a symbol the IE relocations should be
1077 offset by 8 bytes because the got contains both GD and IE entries. */
1079 or1k_initial_exec_offset (reloc_howto_type
*howto
, unsigned char tls_type_mask
)
1081 switch (howto
->type
)
1083 case R_OR1K_TLS_IE_HI16
:
1084 case R_OR1K_TLS_IE_LO16
:
1085 case R_OR1K_TLS_IE_PG21
:
1086 case R_OR1K_TLS_IE_LO13
:
1087 case R_OR1K_TLS_IE_AHI16
:
1088 return (tls_type_mask
& TLS_GD
) != 0 ? 8 : 0;
1094 /* Like _bfd_final_link_relocate, but handles non-contiguous fields. */
1096 static bfd_reloc_status_type
1097 or1k_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
1098 asection
*input_section
, bfd_byte
*contents
,
1099 bfd_vma offset
, bfd_vma value
)
1101 bfd_reloc_status_type status
= bfd_reloc_ok
;
1102 int size
= bfd_get_reloc_size (howto
);
1105 /* Sanity check the address. */
1106 if (offset
+ size
> bfd_get_section_limit_octets (input_bfd
, input_section
))
1107 return bfd_reloc_outofrange
;
1109 place
= (input_section
->output_section
->vma
1110 + input_section
->output_offset
1111 + (howto
->pcrel_offset
? offset
: 0));
1113 switch (howto
->type
)
1116 case R_OR1K_GOTOFF_AHI16
:
1117 case R_OR1K_TLS_IE_AHI16
:
1118 case R_OR1K_TLS_LE_AHI16
:
1119 /* Adjust the operand to match with a signed LO16. */
1123 case R_OR1K_INSN_REL_26
:
1125 /* Diagnose mis-aligned branch targets. */
1127 status
= bfd_reloc_dangerous
;
1130 case R_OR1K_PCREL_PG21
:
1131 case R_OR1K_GOT_PG21
:
1132 case R_OR1K_TLS_GD_PG21
:
1133 case R_OR1K_TLS_LDM_PG21
:
1134 case R_OR1K_TLS_IE_PG21
:
1135 value
= (value
& -8192) - (place
& -8192);
1139 case R_OR1K_GOT_LO13
:
1140 case R_OR1K_TLS_GD_LO13
:
1141 case R_OR1K_TLS_LDM_LO13
:
1142 case R_OR1K_TLS_IE_LO13
:
1148 if (howto
->pc_relative
)
1153 status
= bfd_check_overflow (howto
->complain_on_overflow
,
1156 bfd_arch_bits_per_address (input_bfd
),
1158 value
>>= howto
->rightshift
;
1160 /* If we're overwriting the entire destination,
1161 then no need to read the current contents. */
1162 if (size
== 0 || howto
->dst_mask
== N_ONES (size
))
1166 BFD_ASSERT (size
== 4);
1167 x
= bfd_get_32 (input_bfd
, contents
+ offset
);
1170 switch (howto
->type
)
1173 case R_OR1K_GOTOFF_SLO16
:
1174 case R_OR1K_TLS_LE_SLO16
:
1176 /* The split imm16 field used for stores. */
1177 x
= (x
& ~0x3e007ff) | ((value
& 0xf800) << 10) | (value
& 0x7ff);
1182 bfd_vma fieldmask
= howto
->dst_mask
;
1183 value
<<= howto
->bitpos
;
1184 x
= (x
& ~fieldmask
) | (value
& fieldmask
);
1189 /* Put the relocated value back in the object file. */
1195 bfd_put_8 (input_bfd
, x
, contents
+ offset
);
1198 bfd_put_16 (input_bfd
, x
, contents
+ offset
);
1201 bfd_put_32 (input_bfd
, x
, contents
+ offset
);
1205 bfd_put_64 (input_bfd
, x
, contents
+ offset
);
1210 (_("%pB: Cannot handle relocation value size of %d"),
1217 /* Relocate an Or1k ELF section.
1219 The RELOCATE_SECTION function is called by the new ELF backend linker
1220 to handle the relocations for a section.
1222 The relocs are always passed as Rela structures; if the section
1223 actually uses Rel structures, the r_addend field will always be
1226 This function is responsible for adjusting the section contents as
1227 necessary, and (if using Rela relocs and generating a relocatable
1228 output file) adjusting the reloc addend as necessary.
1230 This function does not have to worry about setting the reloc
1231 address or the reloc symbol index.
1233 LOCAL_SYMS is a pointer to the swapped in local symbols.
1235 LOCAL_SECTIONS is an array giving the section in the input file
1236 corresponding to the st_shndx field of each local symbol.
1238 The global hash table entry for the global symbols can be found
1239 via elf_sym_hashes (input_bfd).
1241 When generating relocatable output, this function must handle
1242 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1243 going to be the section symbol corresponding to the output
1244 section, which means that the addend must be adjusted
1248 or1k_elf_relocate_section (bfd
*output_bfd
,
1249 struct bfd_link_info
*info
,
1251 asection
*input_section
,
1253 Elf_Internal_Rela
*relocs
,
1254 Elf_Internal_Sym
*local_syms
,
1255 asection
**local_sections
)
1257 Elf_Internal_Shdr
*symtab_hdr
;
1258 struct elf_link_hash_entry
**sym_hashes
;
1259 Elf_Internal_Rela
*rel
;
1260 Elf_Internal_Rela
*relend
;
1261 struct elf_or1k_link_hash_table
*htab
= or1k_elf_hash_table (info
);
1263 bfd_vma
*local_got_offsets
;
1264 asection
*sgot
, *splt
;
1265 bfd_vma plt_base
, got_base
, got_sym_value
;
1266 bfd_boolean ret_val
= TRUE
;
1271 local_got_offsets
= elf_local_got_offsets (input_bfd
);
1273 sreloc
= elf_section_data (input_section
)->sreloc
;
1275 splt
= htab
->root
.splt
;
1278 plt_base
= splt
->output_section
->vma
+ splt
->output_offset
;
1280 sgot
= htab
->root
.sgot
;
1281 got_sym_value
= got_base
= 0;
1284 struct elf_link_hash_entry
*hgot
= htab
->root
.hgot
;
1285 got_sym_value
= (hgot
->root
.u
.def
.value
1286 + hgot
->root
.u
.def
.section
->output_section
->vma
1287 + hgot
->root
.u
.def
.section
->output_offset
);
1288 got_base
= sgot
->output_section
->vma
+ sgot
->output_offset
;
1291 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
1292 sym_hashes
= elf_sym_hashes (input_bfd
);
1293 relend
= relocs
+ input_section
->reloc_count
;
1295 for (rel
= relocs
; rel
< relend
; rel
++)
1297 reloc_howto_type
*howto
;
1298 unsigned long r_symndx
;
1299 Elf_Internal_Sym
*sym
;
1301 struct elf_link_hash_entry
*h
;
1303 bfd_reloc_status_type r
;
1304 const char *name
= NULL
;
1307 r_type
= ELF32_R_TYPE (rel
->r_info
);
1308 r_symndx
= ELF32_R_SYM (rel
->r_info
);
1310 if (r_type
== R_OR1K_GNU_VTINHERIT
1311 || r_type
== R_OR1K_GNU_VTENTRY
)
1314 if (r_type
< 0 || r_type
>= (int) R_OR1K_max
)
1317 (_("%pB: unknown relocation type %d"),
1318 input_bfd
, (int) r_type
);
1319 bfd_set_error (bfd_error_bad_value
);
1324 howto
= or1k_elf_howto_table
+ ELF32_R_TYPE (rel
->r_info
);
1329 if (r_symndx
< symtab_hdr
->sh_info
)
1331 sym
= local_syms
+ r_symndx
;
1332 sec
= local_sections
[r_symndx
];
1333 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
1335 name
= bfd_elf_string_from_elf_section
1336 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
1337 name
= name
== NULL
? bfd_section_name (sec
) : name
;
1341 bfd_boolean unresolved_reloc
, warned
, ignored
;
1343 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
1344 r_symndx
, symtab_hdr
, sym_hashes
,
1346 unresolved_reloc
, warned
, ignored
);
1347 name
= h
->root
.root
.string
;
1350 if (sec
!= NULL
&& discarded_section (sec
))
1351 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
1352 rel
, 1, relend
, howto
, 0, contents
);
1354 if (bfd_link_relocatable (info
))
1357 switch (howto
->type
)
1361 /* If the call is not local, redirect the branch to the PLT.
1362 Otherwise do nothing to send the branch to the symbol direct. */
1363 if (!SYMBOL_CALLS_LOCAL (info
, h
)
1364 && h
->plt
.offset
!= (bfd_vma
) -1)
1365 relocation
= plt_base
+ h
->plt
.offset
;
1367 /* Addend should be zero. */
1368 if (rel
->r_addend
!= 0)
1371 (_("%pB: addend should be zero for plt relocations"),
1373 bfd_set_error (bfd_error_bad_value
);
1379 case R_OR1K_GOT_PG21
:
1380 case R_OR1K_GOT_LO13
:
1384 /* Relocation is to the entry for this symbol
1385 in the global offset table. */
1386 BFD_ASSERT (sgot
!= NULL
);
1391 off
= h
->got
.offset
;
1392 BFD_ASSERT (off
!= (bfd_vma
) -1);
1394 dyn
= htab
->root
.dynamic_sections_created
;
1395 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
1396 bfd_link_pic (info
),
1398 || (bfd_link_pic (info
)
1399 && SYMBOL_REFERENCES_LOCAL (info
, h
)))
1401 /* This is actually a static link, or it is a -Bsymbolic
1402 link and the symbol is defined locally, or the symbol
1403 was forced to be local because of a version file.
1404 We must initialize this entry in the GOT. Since the
1405 offset must always be a multiple of 4, we use the least
1406 significant bit to record whether we have initialized
1409 When doing a dynamic link, we create a .rela.got
1410 relocation entry to initialize the value. This
1411 is done in the finish_dynamic_symbol routine. */
1416 /* Write entry in GOT. */
1417 bfd_put_32 (output_bfd
, relocation
,
1418 sgot
->contents
+ off
);
1419 /* Mark GOT entry as having been written. */
1428 BFD_ASSERT (local_got_offsets
!= NULL
1429 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
1431 /* Get offset into GOT table. */
1432 off
= local_got_offsets
[r_symndx
];
1434 /* The offset must always be a multiple of 4. We use
1435 the least significant bit to record whether we have
1436 already processed this entry. */
1441 /* Write entry in GOT. */
1442 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1443 if (bfd_link_pic (info
))
1446 Elf_Internal_Rela outrel
;
1448 /* We need to generate a R_OR1K_RELATIVE reloc
1449 for the dynamic linker. */
1450 srelgot
= htab
->root
.srelgot
;
1451 BFD_ASSERT (srelgot
!= NULL
);
1453 outrel
.r_offset
= got_base
+ off
;
1454 outrel
.r_info
= ELF32_R_INFO (0, R_OR1K_RELATIVE
);
1455 outrel
.r_addend
= relocation
;
1456 loc
= srelgot
->contents
;
1457 loc
+= (srelgot
->reloc_count
1458 * sizeof (Elf32_External_Rela
));
1459 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1460 ++srelgot
->reloc_count
;
1462 local_got_offsets
[r_symndx
] |= 1;
1466 /* The GOT_PG21 and GOT_LO13 relocs are pc-relative,
1467 while the GOT16 reloc is GOT relative. */
1468 relocation
= got_base
+ off
;
1469 if (r_type
== R_OR1K_GOT16
)
1470 relocation
-= got_sym_value
;
1472 /* Addend should be zero. */
1473 if (rel
->r_addend
!= 0)
1476 (_("%pB: addend should be zero for got relocations"),
1478 bfd_set_error (bfd_error_bad_value
);
1484 case R_OR1K_GOTOFF_LO16
:
1485 case R_OR1K_GOTOFF_HI16
:
1486 case R_OR1K_GOTOFF_AHI16
:
1487 case R_OR1K_GOTOFF_SLO16
:
1488 /* Relocation is offset from GOT. */
1489 BFD_ASSERT (sgot
!= NULL
);
1490 if (!SYMBOL_REFERENCES_LOCAL (info
, h
))
1493 (_("%pB: gotoff relocation against dynamic symbol %s"),
1494 input_bfd
, h
->root
.root
.string
);
1496 bfd_set_error (bfd_error_bad_value
);
1498 relocation
-= got_sym_value
;
1501 case R_OR1K_INSN_REL_26
:
1502 case R_OR1K_PCREL_PG21
:
1505 /* For a non-shared link, these will reference either the plt
1506 or a .dynbss copy of the symbol. */
1507 if (bfd_link_pic (info
) && !SYMBOL_REFERENCES_LOCAL (info
, h
))
1510 (_("%pB: pc-relative relocation against dynamic symbol %s"),
1513 bfd_set_error (bfd_error_bad_value
);
1517 case R_OR1K_HI_16_IN_INSN
:
1518 case R_OR1K_LO_16_IN_INSN
:
1521 if (bfd_link_pic (info
))
1524 (_("%pB: non-pic relocation against symbol %s"),
1527 bfd_set_error (bfd_error_bad_value
);
1534 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
1535 from removed linkonce sections, or sections discarded by
1537 if (r_symndx
== STN_UNDEF
1538 || (input_section
->flags
& SEC_ALLOC
) == 0)
1541 /* Emit a direct relocation if the symbol is dynamic,
1542 or a RELATIVE reloc for shared objects. We can omit
1543 RELATIVE relocs to local undefweak symbols. */
1544 if (bfd_link_pic (info
)
1546 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1547 || h
->root
.type
!= bfd_link_hash_undefweak
)
1551 && ((h
->def_dynamic
&& !h
->def_regular
)
1552 || h
->root
.type
== bfd_link_hash_undefweak
1553 || h
->root
.type
== bfd_link_hash_undefined
)))
1555 Elf_Internal_Rela outrel
;
1559 /* When generating a shared object, these relocations
1560 are copied into the output file to be resolved at run
1563 BFD_ASSERT (sreloc
!= NULL
);
1568 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
1570 if (outrel
.r_offset
== (bfd_vma
) -1)
1572 else if (outrel
.r_offset
== (bfd_vma
) -2)
1574 outrel
.r_offset
+= (input_section
->output_section
->vma
1575 + input_section
->output_offset
);
1578 memset (&outrel
, 0, sizeof outrel
);
1579 else if (SYMBOL_REFERENCES_LOCAL (info
, h
))
1581 outrel
.r_info
= ELF32_R_INFO (0, R_OR1K_RELATIVE
);
1582 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1586 BFD_ASSERT (h
->dynindx
!= -1);
1587 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
1588 outrel
.r_addend
= rel
->r_addend
;
1591 loc
= sreloc
->contents
;
1592 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1593 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1599 case R_OR1K_TLS_LDM_HI16
:
1600 case R_OR1K_TLS_LDM_LO16
:
1601 case R_OR1K_TLS_LDM_PG21
:
1602 case R_OR1K_TLS_LDM_LO13
:
1603 case R_OR1K_TLS_LDO_HI16
:
1604 case R_OR1K_TLS_LDO_LO16
:
1605 /* TODO: implement support for local dynamic. */
1608 (_("%pB: support for local dynamic not implemented"),
1610 bfd_set_error (bfd_error_bad_value
);
1613 case R_OR1K_TLS_GD_HI16
:
1614 case R_OR1K_TLS_GD_LO16
:
1615 case R_OR1K_TLS_GD_PG21
:
1616 case R_OR1K_TLS_GD_LO13
:
1617 case R_OR1K_TLS_IE_HI16
:
1618 case R_OR1K_TLS_IE_LO16
:
1619 case R_OR1K_TLS_IE_PG21
:
1620 case R_OR1K_TLS_IE_LO13
:
1621 case R_OR1K_TLS_IE_AHI16
:
1624 Elf_Internal_Rela rela
;
1627 bfd_boolean dynamic
;
1629 unsigned char tls_type
;
1631 srelgot
= htab
->root
.srelgot
;
1633 /* Mark as TLS related GOT entry by setting
1634 bit 2 to indcate TLS and bit 1 to indicate GOT. */
1637 gotoff
= h
->got
.offset
;
1638 tls_type
= ((struct elf_or1k_link_hash_entry
*) h
)->tls_type
;
1643 unsigned char *local_tls_type
;
1645 gotoff
= local_got_offsets
[r_symndx
];
1646 local_tls_type
= (unsigned char *) elf_or1k_local_tls_type (input_bfd
);
1647 tls_type
= local_tls_type
== NULL
? TLS_NONE
1648 : local_tls_type
[r_symndx
];
1649 local_got_offsets
[r_symndx
] |= 3;
1652 /* Only process the relocation once. */
1653 if ((gotoff
& 1) != 0)
1655 gotoff
+= or1k_initial_exec_offset (howto
, tls_type
);
1657 /* The PG21 and LO13 relocs are pc-relative, while the
1658 rest are GOT relative. */
1659 relocation
= got_base
+ (gotoff
& ~3);
1660 if (!(r_type
== R_OR1K_TLS_GD_PG21
1661 || r_type
== R_OR1K_TLS_GD_LO13
1662 || r_type
== R_OR1K_TLS_IE_PG21
1663 || r_type
== R_OR1K_TLS_IE_LO13
))
1664 relocation
-= got_sym_value
;
1668 BFD_ASSERT (elf_hash_table (info
)->hgot
== NULL
1669 || elf_hash_table (info
)->hgot
->root
.u
.def
.value
== 0);
1673 bfd_boolean dyn
= htab
->root
.dynamic_sections_created
;
1674 bfd_boolean pic
= bfd_link_pic (info
);
1676 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, pic
, h
)
1677 && (!pic
|| !SYMBOL_REFERENCES_LOCAL (info
, h
)))
1681 /* Dynamic entries will require relocations. If we do not need
1682 them we will just use the default R_OR1K_NONE and
1683 not set anything. */
1684 dynamic
= (bfd_link_pic (info
) || indx
!= 0)
1686 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1687 || h
->root
.type
!= bfd_link_hash_undefweak
);
1690 if (dynamic
&& ((tls_type
& TLS_GD
) != 0))
1694 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1695 for (i
= 0; i
< 2; ++i
)
1697 BFD_ASSERT (srelgot
->contents
!= NULL
);
1699 rela
.r_offset
= got_base
+ gotoff
+ i
*4;
1700 if (h
!= NULL
&& h
->dynindx
!= -1)
1702 rela
.r_info
= ELF32_R_INFO (h
->dynindx
,
1703 (i
== 0 ? R_OR1K_TLS_DTPMOD
: R_OR1K_TLS_DTPOFF
));
1708 rela
.r_info
= ELF32_R_INFO (0,
1709 (i
== 0 ? R_OR1K_TLS_DTPMOD
: R_OR1K_TLS_DTPOFF
));
1711 (i
== 0 ? 0 : tpoff (info
, relocation
, dynamic
));
1714 loc
= srelgot
->contents
;
1715 loc
+= (srelgot
->reloc_count
++
1716 * sizeof (Elf32_External_Rela
));
1718 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
1719 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ gotoff
+ i
*4);
1723 else if ((tls_type
& TLS_GD
) != 0)
1725 bfd_put_32 (output_bfd
, 1, sgot
->contents
+ gotoff
);
1726 bfd_put_32 (output_bfd
, tpoff (info
, relocation
, dynamic
),
1727 sgot
->contents
+ gotoff
+ 4);
1730 gotoff
+= or1k_initial_exec_offset (howto
, tls_type
);
1733 if (dynamic
&& ((tls_type
& TLS_IE
) != 0))
1735 BFD_ASSERT (srelgot
->contents
!= NULL
);
1737 /* Add TPOFF GOT and rela entries. */
1738 rela
.r_offset
= got_base
+ gotoff
;
1739 if (h
!= NULL
&& h
->dynindx
!= -1)
1741 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_OR1K_TLS_TPOFF
);
1746 rela
.r_info
= ELF32_R_INFO (0, R_OR1K_TLS_TPOFF
);
1747 rela
.r_addend
= tpoff (info
, relocation
, dynamic
);
1750 loc
= srelgot
->contents
;
1751 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1753 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
1754 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ gotoff
);
1757 else if ((tls_type
& TLS_IE
) != 0)
1758 bfd_put_32 (output_bfd
, tpoff (info
, relocation
, dynamic
),
1759 sgot
->contents
+ gotoff
);
1761 /* The PG21 and LO13 relocs are pc-relative, while the
1762 rest are GOT relative. */
1763 relocation
= got_base
+ gotoff
;
1764 if (!(r_type
== R_OR1K_TLS_GD_PG21
1765 || r_type
== R_OR1K_TLS_GD_LO13
1766 || r_type
== R_OR1K_TLS_IE_PG21
1767 || r_type
== R_OR1K_TLS_IE_LO13
))
1768 relocation
-= got_sym_value
;
1772 case R_OR1K_TLS_LE_HI16
:
1773 case R_OR1K_TLS_LE_LO16
:
1774 case R_OR1K_TLS_LE_AHI16
:
1775 case R_OR1K_TLS_LE_SLO16
:
1776 /* Relocation is offset from TP. */
1777 relocation
= tpoff (info
, relocation
, 0);
1780 case R_OR1K_TLS_DTPMOD
:
1781 case R_OR1K_TLS_DTPOFF
:
1782 case R_OR1K_TLS_TPOFF
:
1783 /* These are resolved dynamically on load and shouldn't
1784 be used as linker input. */
1787 (_("%pB: will not resolve runtime TLS relocation"),
1789 bfd_set_error (bfd_error_bad_value
);
1796 r
= or1k_final_link_relocate (howto
, input_bfd
, input_section
, contents
,
1797 rel
->r_offset
, relocation
+ rel
->r_addend
);
1799 if (r
!= bfd_reloc_ok
)
1801 const char *msg
= NULL
;
1805 case bfd_reloc_overflow
:
1806 (*info
->callbacks
->reloc_overflow
)
1807 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
1808 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
1811 case bfd_reloc_undefined
:
1812 (*info
->callbacks
->undefined_symbol
)
1813 (info
, name
, input_bfd
, input_section
, rel
->r_offset
, TRUE
);
1816 case bfd_reloc_outofrange
:
1817 msg
= _("internal error: out of range error");
1820 case bfd_reloc_notsupported
:
1821 msg
= _("internal error: unsupported relocation error");
1824 case bfd_reloc_dangerous
:
1825 msg
= _("internal error: dangerous relocation");
1829 msg
= _("internal error: unknown error");
1834 (*info
->callbacks
->warning
) (info
, msg
, name
, input_bfd
,
1835 input_section
, rel
->r_offset
);
1842 /* Return the section that should be marked against GC for a given
1846 or1k_elf_gc_mark_hook (asection
*sec
,
1847 struct bfd_link_info
*info
,
1848 Elf_Internal_Rela
*rel
,
1849 struct elf_link_hash_entry
*h
,
1850 Elf_Internal_Sym
*sym
)
1853 switch (ELF32_R_TYPE (rel
->r_info
))
1855 case R_OR1K_GNU_VTINHERIT
:
1856 case R_OR1K_GNU_VTENTRY
:
1860 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
1863 /* Look through the relocs for a section during the first phase. */
1866 or1k_elf_check_relocs (bfd
*abfd
,
1867 struct bfd_link_info
*info
,
1869 const Elf_Internal_Rela
*relocs
)
1871 Elf_Internal_Shdr
*symtab_hdr
;
1872 struct elf_link_hash_entry
**sym_hashes
;
1873 const Elf_Internal_Rela
*rel
;
1875 const Elf_Internal_Rela
*rel_end
;
1876 struct elf_or1k_link_hash_table
*htab
;
1878 asection
*sreloc
= NULL
;
1880 if (bfd_link_relocatable (info
))
1883 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1884 sym_hashes
= elf_sym_hashes (abfd
);
1886 htab
= or1k_elf_hash_table (info
);
1890 dynobj
= htab
->root
.dynobj
;
1892 rel_end
= relocs
+ sec
->reloc_count
;
1893 for (rel
= relocs
; rel
< rel_end
; rel
++)
1895 struct elf_link_hash_entry
*h
;
1896 unsigned long r_symndx
;
1897 unsigned char tls_type
;
1900 r_symndx
= ELF32_R_SYM (rel
->r_info
);
1901 if (r_symndx
< symtab_hdr
->sh_info
)
1905 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1906 while (h
->root
.type
== bfd_link_hash_indirect
1907 || h
->root
.type
== bfd_link_hash_warning
)
1908 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1911 r_type
= ELF32_R_TYPE (rel
->r_info
);
1914 case R_OR1K_TLS_GD_HI16
:
1915 case R_OR1K_TLS_GD_LO16
:
1916 case R_OR1K_TLS_GD_PG21
:
1917 case R_OR1K_TLS_GD_LO13
:
1920 case R_OR1K_TLS_LDM_HI16
:
1921 case R_OR1K_TLS_LDM_LO16
:
1922 case R_OR1K_TLS_LDM_PG21
:
1923 case R_OR1K_TLS_LDM_LO13
:
1924 case R_OR1K_TLS_LDO_HI16
:
1925 case R_OR1K_TLS_LDO_LO16
:
1928 case R_OR1K_TLS_IE_HI16
:
1929 case R_OR1K_TLS_IE_LO16
:
1930 case R_OR1K_TLS_IE_PG21
:
1931 case R_OR1K_TLS_IE_LO13
:
1932 case R_OR1K_TLS_IE_AHI16
:
1935 case R_OR1K_TLS_LE_HI16
:
1936 case R_OR1K_TLS_LE_LO16
:
1937 case R_OR1K_TLS_LE_AHI16
:
1938 case R_OR1K_TLS_LE_SLO16
:
1942 tls_type
= TLS_NONE
;
1945 /* Record TLS type. */
1947 ((struct elf_or1k_link_hash_entry
*) h
)->tls_type
|= tls_type
;
1950 unsigned char *local_tls_type
;
1952 /* This is a TLS type record for a local symbol. */
1953 local_tls_type
= (unsigned char *) elf_or1k_local_tls_type (abfd
);
1954 if (local_tls_type
== NULL
)
1958 size
= symtab_hdr
->sh_info
;
1959 local_tls_type
= bfd_zalloc (abfd
, size
);
1960 if (local_tls_type
== NULL
)
1962 elf_or1k_local_tls_type (abfd
) = local_tls_type
;
1964 local_tls_type
[r_symndx
] |= tls_type
;
1969 /* This relocation describes the C++ object vtable hierarchy.
1970 Reconstruct it for later use during GC. */
1971 case R_OR1K_GNU_VTINHERIT
:
1972 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
1976 /* This relocation describes which C++ vtable entries are actually
1977 used. Record for later use during GC. */
1978 case R_OR1K_GNU_VTENTRY
:
1979 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
1983 /* This relocation requires .plt entry. */
1985 htab
->saw_plta
= TRUE
;
1991 h
->plt
.refcount
+= 1;
1996 case R_OR1K_GOT_PG21
:
1997 case R_OR1K_GOT_LO13
:
1998 case R_OR1K_TLS_GD_HI16
:
1999 case R_OR1K_TLS_GD_LO16
:
2000 case R_OR1K_TLS_GD_PG21
:
2001 case R_OR1K_TLS_GD_LO13
:
2002 case R_OR1K_TLS_IE_HI16
:
2003 case R_OR1K_TLS_IE_LO16
:
2004 case R_OR1K_TLS_IE_PG21
:
2005 case R_OR1K_TLS_IE_LO13
:
2006 case R_OR1K_TLS_IE_AHI16
:
2008 h
->got
.refcount
+= 1;
2011 bfd_signed_vma
*local_got_refcounts
;
2013 /* This is a global offset table entry for a local symbol. */
2014 local_got_refcounts
= elf_local_got_refcounts (abfd
);
2015 if (local_got_refcounts
== NULL
)
2019 size
= symtab_hdr
->sh_info
;
2020 size
*= sizeof (bfd_signed_vma
);
2021 local_got_refcounts
= bfd_zalloc (abfd
, size
);
2022 if (local_got_refcounts
== NULL
)
2024 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
2026 local_got_refcounts
[r_symndx
] += 1;
2030 case R_OR1K_GOTOFF_HI16
:
2031 case R_OR1K_GOTOFF_LO16
:
2032 case R_OR1K_GOTOFF_AHI16
:
2033 case R_OR1K_GOTOFF_SLO16
:
2034 if (htab
->root
.sgot
== NULL
)
2037 htab
->root
.dynobj
= dynobj
= abfd
;
2038 if (!_bfd_elf_create_got_section (dynobj
, info
))
2043 case R_OR1K_INSN_REL_26
:
2044 case R_OR1K_HI_16_IN_INSN
:
2045 case R_OR1K_LO_16_IN_INSN
:
2049 case R_OR1K_PCREL_PG21
:
2053 if (h
!= NULL
&& !bfd_link_pic (info
))
2055 /* We may need a copy reloc. */
2058 /* We may also need a .plt entry. */
2059 h
->plt
.refcount
+= 1;
2060 if (r_type
!= R_OR1K_INSN_REL_26
)
2061 h
->pointer_equality_needed
= 1;
2064 /* If we are creating a shared library, and this is a reloc
2065 against a global symbol, or a non PC relative reloc
2066 against a local symbol, then we need to copy the reloc
2067 into the shared library. However, if we are linking with
2068 -Bsymbolic, we do not need to copy a reloc against a
2069 global symbol which is defined in an object we are
2070 including in the link (i.e., DEF_REGULAR is set). At
2071 this point we have not seen all the input files, so it is
2072 possible that DEF_REGULAR is not set now but will be set
2073 later (it is never cleared). In case of a weak definition,
2074 DEF_REGULAR may be cleared later by a strong definition in
2075 a shared library. We account for that possibility below by
2076 storing information in the relocs_copied field of the hash
2077 table entry. A similar situation occurs when creating
2078 shared libraries and symbol visibility changes render the
2081 If on the other hand, we are creating an executable, we
2082 may need to keep relocations for symbols satisfied by a
2083 dynamic library if we manage to avoid copy relocs for the
2086 if ((bfd_link_pic (info
)
2087 && (sec
->flags
& SEC_ALLOC
) != 0
2088 && (r_type
!= R_OR1K_INSN_REL_26
2090 && (!SYMBOLIC_BIND (info
, h
)
2091 || h
->root
.type
== bfd_link_hash_defweak
2092 || !h
->def_regular
))))
2093 || (!bfd_link_pic (info
)
2094 && (sec
->flags
& SEC_ALLOC
) != 0
2096 && (h
->root
.type
== bfd_link_hash_defweak
2097 || !h
->def_regular
)))
2099 struct elf_dyn_relocs
*sec_relocs
;
2100 struct elf_dyn_relocs
**head
;
2102 /* When creating a shared object, we must copy these
2103 relocs into the output file. We create a reloc
2104 section in dynobj and make room for the reloc. */
2108 unsigned int strndx
= elf_elfheader (abfd
)->e_shstrndx
;
2109 unsigned int shnam
= _bfd_elf_single_rel_hdr (sec
)->sh_name
;
2111 name
= bfd_elf_string_from_elf_section (abfd
, strndx
, shnam
);
2115 if (strncmp (name
, ".rela", 5) != 0
2116 || strcmp (bfd_section_name (sec
), name
+ 5) != 0)
2119 /* xgettext:c-format */
2120 (_("%pB: bad relocation section name `%s\'"),
2124 if (htab
->root
.dynobj
== NULL
)
2125 htab
->root
.dynobj
= abfd
;
2126 dynobj
= htab
->root
.dynobj
;
2128 sreloc
= bfd_get_section_by_name (dynobj
, name
);
2131 sreloc
= _bfd_elf_make_dynamic_reloc_section
2132 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
2137 elf_section_data (sec
)->sreloc
= sreloc
;
2140 /* If this is a global symbol, we count the number of
2141 relocations we need for this symbol. */
2143 head
= &h
->dyn_relocs
;
2146 /* Track dynamic relocs needed for local syms too.
2147 We really need local syms available to do this
2151 Elf_Internal_Sym
*isym
;
2154 isym
= bfd_sym_from_r_symndx (&htab
->sym_sec
,
2159 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
2163 vpp
= &elf_section_data (s
)->local_dynrel
;
2164 head
= (struct elf_dyn_relocs
**) vpp
;
2168 /* Allocate this sections dynamic reolcations structure if this
2169 is a new section. */
2170 if (sec_relocs
== NULL
|| sec_relocs
->sec
!= sec
)
2172 size_t amt
= sizeof *sec_relocs
;
2173 sec_relocs
= ((struct elf_dyn_relocs
*)
2174 bfd_alloc (htab
->root
.dynobj
, amt
));
2175 if (sec_relocs
== NULL
)
2177 sec_relocs
->next
= *head
;
2179 sec_relocs
->sec
= sec
;
2180 sec_relocs
->count
= 0;
2181 sec_relocs
->pc_count
= 0;
2184 sec_relocs
->count
+= 1;
2185 if (r_type
== R_OR1K_INSN_REL_26
)
2186 sec_relocs
->pc_count
+= 1;
2197 or1k_write_plt_entry (bfd
*output_bfd
, bfd_byte
*contents
, unsigned insn1
,
2198 unsigned insn2
, unsigned insn3
, unsigned insnj
)
2200 unsigned nodelay
= elf_elfheader (output_bfd
)->e_flags
& EF_OR1K_NODELAY
;
2203 /* Honor the no-delay-slot setting. */
2204 if (insn3
== OR1K_NOP
)
2210 insn3
= insn2
, insn2
= insnj
;
2217 insn4
= insn3
, insn3
= insnj
;
2220 bfd_put_32 (output_bfd
, insn1
, contents
);
2221 bfd_put_32 (output_bfd
, insn2
, contents
+ 4);
2222 bfd_put_32 (output_bfd
, insn3
, contents
+ 8);
2223 bfd_put_32 (output_bfd
, insn4
, contents
+ 12);
2226 /* Finish up the dynamic sections. */
2229 or1k_elf_finish_dynamic_sections (bfd
*output_bfd
,
2230 struct bfd_link_info
*info
)
2233 asection
*sdyn
, *sgot
;
2234 struct elf_or1k_link_hash_table
*htab
;
2236 htab
= or1k_elf_hash_table (info
);
2240 dynobj
= htab
->root
.dynobj
;
2242 sgot
= htab
->root
.sgotplt
;
2243 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
2245 if (htab
->root
.dynamic_sections_created
)
2248 Elf32_External_Dyn
*dyncon
, *dynconend
;
2250 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
2252 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
2253 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
2255 for (; dyncon
< dynconend
; dyncon
++)
2257 Elf_Internal_Dyn dyn
;
2260 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
2268 s
= htab
->root
.sgotplt
;
2269 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
2273 s
= htab
->root
.srelplt
;
2274 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
2278 s
= htab
->root
.srelplt
;
2279 dyn
.d_un
.d_val
= s
->size
;
2282 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2286 /* Fill in the first entry in the procedure linkage table. */
2287 splt
= htab
->root
.splt
;
2288 if (splt
&& splt
->size
> 0)
2290 unsigned plt0
, plt1
, plt2
;
2291 bfd_vma got_addr
= sgot
->output_section
->vma
+ sgot
->output_offset
;
2293 /* Note we force 16 byte alignment on the .got, so that
2294 the movhi/adrp can be shared between the two loads. */
2298 bfd_vma pc
= splt
->output_section
->vma
+ splt
->output_offset
;
2299 unsigned pa
= ((got_addr
>> 13) - (pc
>> 13)) & 0x1fffff;
2300 unsigned po
= got_addr
& 0x1fff;
2301 plt0
= OR1K_ADRP(12) | pa
;
2302 plt1
= OR1K_LWZ(15,12) | (po
+ 8);
2303 plt2
= OR1K_LWZ(12,12) | (po
+ 4);
2305 else if (bfd_link_pic (info
))
2307 plt0
= OR1K_LWZ(15, 16) | 8; /* .got+8 */
2308 plt1
= OR1K_LWZ(12, 16) | 4; /* .got+4 */
2313 unsigned ha
= ((got_addr
+ 0x8000) >> 16) & 0xffff;
2314 unsigned lo
= got_addr
& 0xffff;
2315 plt0
= OR1K_MOVHI(12) | ha
;
2316 plt1
= OR1K_LWZ(15,12) | (lo
+ 8);
2317 plt2
= OR1K_LWZ(12,12) | (lo
+ 4);
2320 or1k_write_plt_entry (output_bfd
, splt
->contents
,
2321 plt0
, plt1
, plt2
, OR1K_JR(15));
2323 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
= 4;
2327 /* Set the first entry in the global offset table to the address of
2328 the dynamic section. */
2329 if (sgot
&& sgot
->size
> 0)
2332 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
2334 bfd_put_32 (output_bfd
,
2335 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
2337 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
2340 if (htab
->root
.sgot
&& htab
->root
.sgot
->size
> 0)
2341 elf_section_data (htab
->root
.sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
2346 /* Finish up dynamic symbol handling. We set the contents of various
2347 dynamic sections here. */
2350 or1k_elf_finish_dynamic_symbol (bfd
*output_bfd
,
2351 struct bfd_link_info
*info
,
2352 struct elf_link_hash_entry
*h
,
2353 Elf_Internal_Sym
*sym
)
2355 struct elf_or1k_link_hash_table
*htab
;
2358 htab
= or1k_elf_hash_table (info
);
2362 if (h
->plt
.offset
!= (bfd_vma
) -1)
2364 unsigned int plt0
, plt1
, plt2
;
2368 bfd_vma plt_base_addr
;
2372 bfd_vma got_base_addr
;
2375 Elf_Internal_Rela rela
;
2377 /* This symbol has an entry in the procedure linkage table. Set
2379 BFD_ASSERT (h
->dynindx
!= -1);
2381 splt
= htab
->root
.splt
;
2382 sgot
= htab
->root
.sgotplt
;
2383 srela
= htab
->root
.srelplt
;
2384 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
2386 plt_base_addr
= splt
->output_section
->vma
+ splt
->output_offset
;
2387 got_base_addr
= sgot
->output_section
->vma
+ sgot
->output_offset
;
2389 /* Get the index in the procedure linkage table which
2390 corresponds to this symbol. This is the index of this symbol
2391 in all the symbols for which we are making plt entries. The
2392 first entry in the procedure linkage table is reserved. */
2393 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
2394 plt_addr
= plt_base_addr
+ h
->plt
.offset
;
2395 plt_reloc
= plt_index
* sizeof (Elf32_External_Rela
);
2397 /* Get the offset into the .got table of the entry that
2398 corresponds to this function. Each .got entry is 4 bytes.
2399 The first three are reserved. */
2400 got_offset
= (plt_index
+ 3) * 4;
2401 got_addr
= got_base_addr
+ got_offset
;
2403 /* Fill in the entry in the procedure linkage table. */
2406 unsigned pa
= ((got_addr
>> 13) - (plt_addr
>> 13)) & 0x1fffff;
2407 unsigned po
= (got_addr
& 0x1fff);
2408 plt0
= OR1K_ADRP(12) | pa
;
2409 plt1
= OR1K_LWZ(12,12) | po
;
2410 plt2
= OR1K_ORI0(11) | plt_reloc
;
2412 else if (bfd_link_pic (info
))
2414 plt0
= OR1K_LWZ(12,16) | got_offset
;
2415 plt1
= OR1K_ORI0(11) | plt_reloc
;
2420 unsigned ha
= ((got_addr
+ 0x8000) >> 16) & 0xffff;
2421 unsigned lo
= got_addr
& 0xffff;
2422 plt0
= OR1K_MOVHI(12) | ha
;
2423 plt1
= OR1K_LWZ(12,12) | lo
;
2424 plt2
= OR1K_ORI0(11) | plt_reloc
;
2427 or1k_write_plt_entry (output_bfd
, splt
->contents
+ h
->plt
.offset
,
2428 plt0
, plt1
, plt2
, OR1K_JR(12));
2430 /* Fill in the entry in the global offset table. We initialize it to
2431 point to the top of the plt. This is done to lazy lookup the actual
2432 symbol as the first plt entry will be setup by libc to call the
2433 runtime dynamic linker. */
2434 bfd_put_32 (output_bfd
, plt_base_addr
, sgot
->contents
+ got_offset
);
2436 /* Fill in the entry in the .rela.plt section. */
2437 rela
.r_offset
= got_addr
;
2438 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_OR1K_JMP_SLOT
);
2440 loc
= srela
->contents
;
2441 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
2442 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2444 if (!h
->def_regular
)
2446 /* Mark the symbol as undefined, rather than as defined in
2447 the .plt section. Leave the value alone. */
2448 sym
->st_shndx
= SHN_UNDEF
;
2452 if (h
->got
.offset
!= (bfd_vma
) -1
2453 && (h
->got
.offset
& 2) == 0) /* Homemade TLS check. */
2457 Elf_Internal_Rela rela
;
2459 /* This symbol has an entry in the global offset table. Set it
2461 sgot
= htab
->root
.sgot
;
2462 srelgot
= htab
->root
.srelgot
;
2463 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
2465 rela
.r_offset
= (sgot
->output_section
->vma
2466 + sgot
->output_offset
2467 + (h
->got
.offset
&~ 1));
2469 /* If this is a -Bsymbolic link, and the symbol is defined
2470 locally, we just want to emit a RELATIVE reloc. Likewise if
2471 the symbol was forced to be local because of a version file.
2472 The entry in the global offset table will already have been
2473 initialized in the relocate_section function. */
2474 if (bfd_link_pic (info
) && SYMBOL_REFERENCES_LOCAL (info
, h
))
2476 rela
.r_info
= ELF32_R_INFO (0, R_OR1K_RELATIVE
);
2477 rela
.r_addend
= (h
->root
.u
.def
.value
2478 + h
->root
.u
.def
.section
->output_section
->vma
2479 + h
->root
.u
.def
.section
->output_offset
);
2483 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
2484 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
2485 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_OR1K_GLOB_DAT
);
2489 loc
= srelgot
->contents
;
2490 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
2491 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2492 ++srelgot
->reloc_count
;
2498 Elf_Internal_Rela rela
;
2500 /* This symbols needs a copy reloc. Set it up. */
2501 BFD_ASSERT (h
->dynindx
!= -1
2502 && (h
->root
.type
== bfd_link_hash_defined
2503 || h
->root
.type
== bfd_link_hash_defweak
));
2505 rela
.r_offset
= (h
->root
.u
.def
.value
2506 + h
->root
.u
.def
.section
->output_section
->vma
2507 + h
->root
.u
.def
.section
->output_offset
);
2508 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_OR1K_COPY
);
2510 if (h
->root
.u
.def
.section
== htab
->root
.sdynrelro
)
2511 s
= htab
->root
.sreldynrelro
;
2513 s
= htab
->root
.srelbss
;
2514 loc
= s
->contents
+ s
->reloc_count
* sizeof (Elf32_External_Rela
);
2515 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2519 /* Mark some specially defined symbols as absolute. */
2520 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
2521 || h
== htab
->root
.hgot
)
2522 sym
->st_shndx
= SHN_ABS
;
2527 static enum elf_reloc_type_class
2528 or1k_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2529 const asection
*rel_sec ATTRIBUTE_UNUSED
,
2530 const Elf_Internal_Rela
*rela
)
2532 switch ((int) ELF32_R_TYPE (rela
->r_info
))
2534 case R_OR1K_RELATIVE
: return reloc_class_relative
;
2535 case R_OR1K_JMP_SLOT
: return reloc_class_plt
;
2536 case R_OR1K_COPY
: return reloc_class_copy
;
2537 default: return reloc_class_normal
;
2541 /* Adjust a symbol defined by a dynamic object and referenced by a
2542 regular object. The current definition is in some section of the
2543 dynamic object, but we're not including those sections. We have to
2544 change the definition to something the rest of the link can
2548 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2549 struct elf_link_hash_entry
*h
)
2551 struct elf_or1k_link_hash_table
*htab
;
2555 dynobj
= elf_hash_table (info
)->dynobj
;
2557 /* Make sure we know what is going on here. */
2558 BFD_ASSERT (dynobj
!= NULL
2563 && !h
->def_regular
)));
2565 /* If this is a function, put it in the procedure linkage table. We
2566 will fill in the contents of the procedure linkage table later,
2567 when we know the address of the .got section. */
2568 if (h
->type
== STT_FUNC
2571 if (! bfd_link_pic (info
)
2574 && h
->root
.type
!= bfd_link_hash_undefweak
2575 && h
->root
.type
!= bfd_link_hash_undefined
)
2577 /* This case can occur if we saw a PLT reloc in an input
2578 file, but the symbol was never referred to by a dynamic
2579 object. In such a case, we don't actually need to build
2580 a procedure linkage table, and we can just do a PCREL
2582 h
->plt
.offset
= (bfd_vma
) -1;
2589 h
->plt
.offset
= (bfd_vma
) -1;
2591 /* If this is a weak symbol, and there is a real definition, the
2592 processor independent code will have arranged for us to see the
2593 real definition first, and we can just use the same value. */
2594 if (h
->is_weakalias
)
2596 struct elf_link_hash_entry
*def
= weakdef (h
);
2597 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
2598 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
2599 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
2603 /* This is a reference to a symbol defined by a dynamic object which
2604 is not a function. */
2606 /* If we are creating a shared library, we must presume that the
2607 only references to the symbol are via the global offset table.
2608 For such cases we need not do anything here; the relocations will
2609 be handled correctly by relocate_section. */
2610 if (bfd_link_pic (info
))
2613 /* If there are no references to this symbol that do not use the
2614 GOT, we don't need to generate a copy reloc. */
2615 if (!h
->non_got_ref
)
2618 /* If -z nocopyreloc was given, we won't generate them either. */
2619 if (info
->nocopyreloc
)
2625 /* If we don't find any dynamic relocs in read-only sections, then
2626 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2627 if (!_bfd_elf_readonly_dynrelocs (h
))
2633 /* We must allocate the symbol in our .dynbss section, which will
2634 become part of the .bss section of the executable. There will be
2635 an entry for this symbol in the .dynsym section. The dynamic
2636 object will contain position independent code, so all references
2637 from the dynamic object to this symbol will go through the global
2638 offset table. The dynamic linker will use the .dynsym entry to
2639 determine the address it must put in the global offset table, so
2640 both the dynamic object and the regular object will refer to the
2641 same memory location for the variable. */
2643 htab
= or1k_elf_hash_table (info
);
2647 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2648 to copy the initial value out of the dynamic object and into the
2649 runtime process image. We need to remember the offset into the
2650 .rela.bss section we are going to use. */
2651 if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
2653 s
= htab
->root
.sdynrelro
;
2654 srel
= htab
->root
.sreldynrelro
;
2658 s
= htab
->root
.sdynbss
;
2659 srel
= htab
->root
.srelbss
;
2661 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
2663 srel
->size
+= sizeof (Elf32_External_Rela
);
2667 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
2670 /* Caclulate an update the sizes required for a symbol in the GOT and
2671 RELA relocation section based on the TLS_TYPE and whether or not the symbol
2674 Symbols with TLS_GD access require 8 bytes in the GOT and, if dynamic,
2675 require two relocation entries. Symbols with TLS_IE access require 4 bytes
2676 in the GOT and, if dynamic, require one relocation entry. Symbols may have
2677 both TLS_GD and TLS_IE access to be accounted for.
2679 Other symbols require 4 bytes in the GOT table and, if dynamic, require one
2680 relocation entry. */
2683 or1k_set_got_and_rela_sizes (const unsigned char tls_type
,
2684 const bfd_boolean dynamic
,
2688 bfd_boolean is_tls_entry
= FALSE
;
2690 /* TLS GD requires two GOT entries and two relocs. */
2691 if ((tls_type
& TLS_GD
) != 0)
2694 is_tls_entry
= TRUE
;
2697 if ((tls_type
& TLS_IE
) != 0)
2700 is_tls_entry
= TRUE
;
2703 if (is_tls_entry
== FALSE
)
2708 if ((tls_type
& TLS_GD
) != 0)
2709 *rela_size
+= 2 * sizeof (Elf32_External_Rela
);
2711 if ((tls_type
& TLS_IE
) != 0)
2712 *rela_size
+= sizeof (Elf32_External_Rela
);
2714 if (is_tls_entry
== FALSE
)
2715 *rela_size
+= sizeof (Elf32_External_Rela
);
2720 /* Allocate space in .plt, .got and associated reloc sections for
2724 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void * inf
)
2726 struct bfd_link_info
*info
;
2727 struct elf_or1k_link_hash_table
*htab
;
2728 struct elf_dyn_relocs
*sec_relocs
;
2730 if (h
->root
.type
== bfd_link_hash_indirect
)
2733 info
= (struct bfd_link_info
*) inf
;
2734 htab
= or1k_elf_hash_table (info
);
2738 if (htab
->root
.dynamic_sections_created
2739 && h
->plt
.refcount
> 0)
2741 /* Make sure this symbol is output as a dynamic symbol.
2742 Undefined weak syms won't yet be marked as dynamic. */
2743 if (h
->dynindx
== -1
2744 && !h
->forced_local
)
2746 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2750 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
2752 asection
*splt
= htab
->root
.splt
;
2754 /* If this is the first .plt entry, make room for the special
2756 if (splt
->size
== 0)
2757 splt
->size
= PLT_ENTRY_SIZE
;
2759 h
->plt
.offset
= splt
->size
;
2761 /* If this symbol is not defined in a regular file, and we are
2762 not generating a shared library, then set the symbol to this
2763 location in the .plt. This is required to make function
2764 pointers compare as equal between the normal executable and
2765 the shared library. */
2766 if (! bfd_link_pic (info
)
2769 h
->root
.u
.def
.section
= splt
;
2770 h
->root
.u
.def
.value
= h
->plt
.offset
;
2773 /* Make room for this entry. */
2774 splt
->size
+= PLT_ENTRY_SIZE
;
2776 /* We also need to make an entry in the .got.plt section, which
2777 will be placed in the .got section by the linker script. */
2778 htab
->root
.sgotplt
->size
+= 4;
2780 /* We also need to make an entry in the .rel.plt section. */
2781 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
2785 h
->plt
.offset
= (bfd_vma
) -1;
2791 h
->plt
.offset
= (bfd_vma
) -1;
2795 if (h
->got
.refcount
> 0)
2799 unsigned char tls_type
;
2801 /* Make sure this symbol is output as a dynamic symbol.
2802 Undefined weak syms won't yet be marked as dynamic. */
2803 if (h
->dynindx
== -1
2804 && !h
->forced_local
)
2806 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2810 sgot
= htab
->root
.sgot
;
2812 h
->got
.offset
= sgot
->size
;
2814 tls_type
= ((struct elf_or1k_link_hash_entry
*) h
)->tls_type
;
2816 dyn
= htab
->root
.dynamic_sections_created
;
2817 dyn
= WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
);
2818 or1k_set_got_and_rela_sizes (tls_type
, dyn
,
2819 &sgot
->size
, &htab
->root
.srelgot
->size
);
2822 h
->got
.offset
= (bfd_vma
) -1;
2824 if (h
->dyn_relocs
== NULL
)
2827 /* In the shared -Bsymbolic case, discard space allocated for
2828 dynamic pc-relative relocs against symbols which turn out to be
2829 defined in regular objects. For the normal shared case, discard
2830 space for pc-relative relocs that have become local due to symbol
2831 visibility changes. */
2833 if (bfd_link_pic (info
))
2835 if (SYMBOL_CALLS_LOCAL (info
, h
))
2837 struct elf_dyn_relocs
**pp
;
2839 for (pp
= &h
->dyn_relocs
; (sec_relocs
= *pp
) != NULL
;)
2841 sec_relocs
->count
-= sec_relocs
->pc_count
;
2842 sec_relocs
->pc_count
= 0;
2843 if (sec_relocs
->count
== 0)
2844 *pp
= sec_relocs
->next
;
2846 pp
= &sec_relocs
->next
;
2850 /* Also discard relocs on undefined weak syms with non-default
2852 if (h
->dyn_relocs
!= NULL
2853 && h
->root
.type
== bfd_link_hash_undefweak
)
2855 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
2856 h
->dyn_relocs
= NULL
;
2858 /* Make sure undefined weak symbols are output as a dynamic
2860 else if (h
->dynindx
== -1
2861 && !h
->forced_local
)
2863 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2870 /* For the non-shared case, discard space for relocs against
2871 symbols which turn out to need copy relocs or are not
2877 || (htab
->root
.dynamic_sections_created
2878 && (h
->root
.type
== bfd_link_hash_undefweak
2879 || h
->root
.type
== bfd_link_hash_undefined
))))
2881 /* Make sure this symbol is output as a dynamic symbol.
2882 Undefined weak syms won't yet be marked as dynamic. */
2883 if (h
->dynindx
== -1
2884 && !h
->forced_local
)
2886 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2890 /* If that succeeded, we know we'll be keeping all the
2892 if (h
->dynindx
!= -1)
2896 h
->dyn_relocs
= NULL
;
2901 /* Finally, allocate space. */
2902 for (sec_relocs
= h
->dyn_relocs
;
2904 sec_relocs
= sec_relocs
->next
)
2906 asection
*sreloc
= elf_section_data (sec_relocs
->sec
)->sreloc
;
2907 sreloc
->size
+= sec_relocs
->count
* sizeof (Elf32_External_Rela
);
2913 /* Set the sizes of the dynamic sections. */
2916 or1k_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2917 struct bfd_link_info
*info
)
2919 struct elf_or1k_link_hash_table
*htab
;
2925 htab
= or1k_elf_hash_table (info
);
2929 dynobj
= htab
->root
.dynobj
;
2930 BFD_ASSERT (dynobj
!= NULL
);
2932 if (htab
->root
.dynamic_sections_created
)
2934 /* Set the contents of the .interp section to the interpreter. */
2935 if (bfd_link_executable (info
) && !info
->nointerp
)
2937 s
= bfd_get_section_by_name (dynobj
, ".interp");
2938 BFD_ASSERT (s
!= NULL
);
2939 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2940 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2944 /* Set up .got offsets for local syms, and space for local dynamic
2946 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2948 bfd_signed_vma
*local_got
;
2949 bfd_signed_vma
*end_local_got
;
2950 bfd_size_type locsymcount
;
2951 Elf_Internal_Shdr
*symtab_hdr
;
2952 unsigned char *local_tls_type
;
2955 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2958 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2960 struct elf_dyn_relocs
*sec_relocs
;
2962 for (sec_relocs
= ((struct elf_dyn_relocs
*)
2963 elf_section_data (s
)->local_dynrel
);
2965 sec_relocs
= sec_relocs
->next
)
2967 if (! bfd_is_abs_section (sec_relocs
->sec
)
2968 && bfd_is_abs_section (sec_relocs
->sec
->output_section
))
2970 /* Input section has been discarded, either because
2971 it is a copy of a linkonce section or due to
2972 linker script /DISCARD/, so we'll be discarding
2975 else if (sec_relocs
->count
!= 0)
2977 srel
= elf_section_data (sec_relocs
->sec
)->sreloc
;
2978 srel
->size
+= sec_relocs
->count
2979 * sizeof (Elf32_External_Rela
);
2980 if ((sec_relocs
->sec
->output_section
->flags
& SEC_READONLY
)
2982 info
->flags
|= DF_TEXTREL
;
2987 local_got
= elf_local_got_refcounts (ibfd
);
2991 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2992 locsymcount
= symtab_hdr
->sh_info
;
2993 end_local_got
= local_got
+ locsymcount
;
2994 s
= htab
->root
.sgot
;
2995 srel
= htab
->root
.srelgot
;
2996 local_tls_type
= (unsigned char *) elf_or1k_local_tls_type (ibfd
);
2997 for (; local_got
< end_local_got
; ++local_got
)
3001 unsigned char tls_type
= (local_tls_type
== NULL
)
3005 *local_got
= s
->size
;
3006 or1k_set_got_and_rela_sizes (tls_type
, bfd_link_pic (info
),
3007 &s
->size
, &srel
->size
);
3011 *local_got
= (bfd_vma
) -1;
3018 /* Allocate global sym .plt and .got entries, and space for global
3019 sym dynamic relocs. */
3020 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, info
);
3022 /* We now have determined the sizes of the various dynamic sections.
3023 Allocate memory for them. */
3025 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3027 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3030 if (s
== htab
->root
.splt
3031 || s
== htab
->root
.sgot
3032 || s
== htab
->root
.sgotplt
3033 || s
== htab
->root
.sdynbss
3034 || s
== htab
->root
.sdynrelro
)
3036 /* Strip this section if we don't need it; see the
3039 else if (CONST_STRNEQ (bfd_section_name (s
), ".rela"))
3041 if (s
->size
!= 0 && s
!= htab
->root
.srelplt
)
3044 /* We use the reloc_count field as a counter if we need
3045 to copy relocs into the output file. */
3049 /* It's not one of our sections, so don't allocate space. */
3054 /* If we don't need this section, strip it from the
3055 output file. This is mostly to handle .rela.bss and
3056 .rela.plt. We must create both sections in
3057 create_dynamic_sections, because they must be created
3058 before the linker maps input sections to output
3059 sections. The linker does that before
3060 adjust_dynamic_symbol is called, and it is that
3061 function which decides whether anything needs to go
3062 into these sections. */
3063 s
->flags
|= SEC_EXCLUDE
;
3067 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3070 /* Allocate memory for the section contents. We use bfd_zalloc
3071 here in case unused entries are not reclaimed before the
3072 section's contents are written out. This should not happen,
3073 but this way if it does, we get a R_OR1K_NONE reloc instead
3075 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
3077 if (s
->contents
== NULL
)
3081 if (htab
->root
.dynamic_sections_created
)
3083 /* Add some entries to the .dynamic section. We fill in the
3084 values later, in or1k_elf_finish_dynamic_sections, but we
3085 must add the entries now so that we get the correct size for
3086 the .dynamic section. The DT_DEBUG entry is filled in by the
3087 dynamic linker and used by the debugger. */
3088 #define add_dynamic_entry(TAG, VAL) \
3089 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3091 if (bfd_link_executable (info
))
3093 if (! add_dynamic_entry (DT_DEBUG
, 0))
3097 if (htab
->root
.splt
->size
!= 0)
3099 if (! add_dynamic_entry (DT_PLTGOT
, 0)
3100 || ! add_dynamic_entry (DT_PLTRELSZ
, 0)
3101 || ! add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3102 || ! add_dynamic_entry (DT_JMPREL
, 0))
3108 if (! add_dynamic_entry (DT_RELA
, 0)
3109 || ! add_dynamic_entry (DT_RELASZ
, 0)
3110 || ! add_dynamic_entry (DT_RELAENT
,
3111 sizeof (Elf32_External_Rela
)))
3114 /* If any dynamic relocs apply to a read-only section,
3115 then we need a DT_TEXTREL entry. */
3116 if ((info
->flags
& DF_TEXTREL
) == 0)
3117 elf_link_hash_traverse (&htab
->root
,
3118 _bfd_elf_maybe_set_textrel
, info
);
3120 if ((info
->flags
& DF_TEXTREL
) != 0)
3122 if (! add_dynamic_entry (DT_TEXTREL
, 0))
3128 #undef add_dynamic_entry
3132 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3135 or1k_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3136 struct elf_link_hash_entry
*dir
,
3137 struct elf_link_hash_entry
*ind
)
3139 struct elf_or1k_link_hash_entry
* edir
;
3140 struct elf_or1k_link_hash_entry
* eind
;
3142 edir
= (struct elf_or1k_link_hash_entry
*) dir
;
3143 eind
= (struct elf_or1k_link_hash_entry
*) ind
;
3145 if (ind
->root
.type
== bfd_link_hash_indirect
)
3147 if (dir
->got
.refcount
<= 0)
3149 edir
->tls_type
= eind
->tls_type
;
3150 eind
->tls_type
= TLS_UNKNOWN
;
3154 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3157 /* Set the right machine number. */
3160 or1k_elf_object_p (bfd
*abfd
)
3162 unsigned long mach
= bfd_mach_or1k
;
3164 if (elf_elfheader (abfd
)->e_flags
& EF_OR1K_NODELAY
)
3165 mach
= bfd_mach_or1knd
;
3167 return bfd_default_set_arch_mach (abfd
, bfd_arch_or1k
, mach
);
3170 /* Store the machine number in the flags field. */
3173 or1k_elf_final_write_processing (bfd
*abfd
)
3175 switch (bfd_get_mach (abfd
))
3180 case bfd_mach_or1knd
:
3181 elf_elfheader (abfd
)->e_flags
|= EF_OR1K_NODELAY
;
3184 return _bfd_elf_final_write_processing (abfd
);
3188 or1k_elf_set_private_flags (bfd
*abfd
, flagword flags
)
3190 BFD_ASSERT (!elf_flags_init (abfd
)
3191 || elf_elfheader (abfd
)->e_flags
== flags
);
3193 elf_elfheader (abfd
)->e_flags
= flags
;
3194 elf_flags_init (abfd
) = TRUE
;
3198 /* Make sure all input files are consistent with respect to
3199 EF_OR1K_NODELAY flag setting. */
3202 elf32_or1k_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
3204 bfd
*obfd
= info
->output_bfd
;
3208 in_flags
= elf_elfheader (ibfd
)->e_flags
;
3209 out_flags
= elf_elfheader (obfd
)->e_flags
;
3211 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
3212 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
3215 if (!elf_flags_init (obfd
))
3217 elf_flags_init (obfd
) = TRUE
;
3218 elf_elfheader (obfd
)->e_flags
= in_flags
;
3223 if (in_flags
== out_flags
)
3226 if ((in_flags
& EF_OR1K_NODELAY
) != (out_flags
& EF_OR1K_NODELAY
))
3229 (_("%pB: %s flag mismatch with previous modules"),
3230 ibfd
, "EF_OR1K_NODELAY");
3232 bfd_set_error (bfd_error_bad_value
);
3240 /* Implement elf_backend_grok_prstatus:
3241 Support for core dump NOTE sections. */
3243 or1k_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
3248 switch (note
->descsz
)
3253 case 212: /* Linux/OpenRISC */
3255 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3258 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3267 /* Make a ".reg/999" section. */
3268 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
3269 size
, note
->descpos
+ offset
);
3272 /* Implement elf_backend_grok_psinfo. */
3274 or1k_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
3276 switch (note
->descsz
)
3281 case 128: /* Linux/OpenRISC elf_prpsinfo */
3282 elf_tdata (abfd
)->core
->program
3283 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 32, 16);
3284 elf_tdata (abfd
)->core
->command
3285 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 48, 80);
3292 #define ELF_ARCH bfd_arch_or1k
3293 #define ELF_MACHINE_CODE EM_OR1K
3294 #define ELF_TARGET_ID OR1K_ELF_DATA
3295 #define ELF_MAXPAGESIZE 0x2000
3297 #define TARGET_BIG_SYM or1k_elf32_vec
3298 #define TARGET_BIG_NAME "elf32-or1k"
3300 #define elf_info_to_howto_rel NULL
3301 #define elf_info_to_howto or1k_info_to_howto_rela
3302 #define elf_backend_relocate_section or1k_elf_relocate_section
3303 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
3304 #define elf_backend_check_relocs or1k_elf_check_relocs
3305 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
3306 #define elf_backend_can_gc_sections 1
3307 #define elf_backend_rela_normal 1
3309 #define bfd_elf32_mkobject elf_or1k_mkobject
3311 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
3312 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
3313 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
3314 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
3316 #define elf_backend_object_p or1k_elf_object_p
3317 #define elf_backend_final_write_processing or1k_elf_final_write_processing
3318 #define elf_backend_can_refcount 1
3320 #define elf_backend_plt_readonly 1
3321 #define elf_backend_want_got_plt 1
3322 #define elf_backend_want_plt_sym 0
3323 #define elf_backend_got_header_size 12
3324 #define elf_backend_dtrel_excludes_plt 1
3325 #define elf_backend_want_dynrelro 1
3327 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
3328 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
3329 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
3330 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
3331 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
3332 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
3333 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
3335 #define elf_backend_grok_prstatus or1k_grok_prstatus
3336 #define elf_backend_grok_psinfo or1k_grok_psinfo
3338 #include "elf32-target.h"