1 /* Or1k-specific support for 32-bit ELF.
2 Copyright (C) 2001-2016 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 PLT_ENTRY_SIZE 20
32 #define PLT0_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(.got+4) */
33 #define PLT0_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(.got+4) */
34 #define PLT0_ENTRY_WORD2 0x85ec0004 /* l.lwz r15, 4(r12) <- *(.got+8)*/
35 #define PLT0_ENTRY_WORD3 0x44007800 /* l.jr r15 */
36 #define PLT0_ENTRY_WORD4 0x858c0000 /* l.lwz r12, 0(r12) */
38 #define PLT0_PIC_ENTRY_WORD0 0x85900004 /* l.lwz r12, 4(r16) */
39 #define PLT0_PIC_ENTRY_WORD1 0x85f00008 /* l.lwz r15, 8(r16) */
40 #define PLT0_PIC_ENTRY_WORD2 0x44007800 /* l.jr r15 */
41 #define PLT0_PIC_ENTRY_WORD3 0x15000000 /* l.nop */
42 #define PLT0_PIC_ENTRY_WORD4 0x15000000 /* l.nop */
44 #define PLT_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(got idx addr) */
45 #define PLT_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(got idx addr) */
46 #define PLT_ENTRY_WORD2 0x858c0000 /* l.lwz r12, 0(r12) */
47 #define PLT_ENTRY_WORD3 0x44006000 /* l.jr r12 */
48 #define PLT_ENTRY_WORD4 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */
50 #define PLT_PIC_ENTRY_WORD0 0x85900000 /* l.lwz r12, 0(r16) <- index in got */
51 #define PLT_PIC_ENTRY_WORD1 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */
52 #define PLT_PIC_ENTRY_WORD2 0x44006000 /* l.jr r12 */
53 #define PLT_PIC_ENTRY_WORD3 0x15000000 /* l.nop */
54 #define PLT_PIC_ENTRY_WORD4 0x15000000 /* l.nop */
56 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
58 static reloc_howto_type or1k_elf_howto_table[] =
60 /* This reloc does nothing. */
61 HOWTO (R_OR1K_NONE, /* type */
63 3, /* size (0 = byte, 1 = short, 2 = long) */
65 FALSE, /* pc_relative */
67 complain_overflow_dont, /* complain_on_overflow */
68 bfd_elf_generic_reloc, /* special_function */
69 "R_OR1K_NONE", /* name */
70 FALSE, /* partial_inplace */
73 FALSE), /* pcrel_offset */
77 2, /* size (0 = byte, 1 = short, 2 = long) */
79 FALSE, /* pc_relative */
81 complain_overflow_unsigned, /* complain_on_overflow */
82 bfd_elf_generic_reloc, /* special_function */
83 "R_OR1K_32", /* name */
84 FALSE, /* partial_inplace */
86 0xffffffff, /* dst_mask */
87 FALSE), /* pcrel_offset */
91 1, /* size (0 = byte, 1 = short, 2 = long) */
93 FALSE, /* pc_relative */
95 complain_overflow_unsigned, /* complain_on_overflow */
96 bfd_elf_generic_reloc, /* special_function */
97 "R_OR1K_16", /* name */
98 FALSE, /* partial_inplace */
100 0xffff, /* dst_mask */
101 FALSE), /* pcrel_offset */
105 0, /* size (0 = byte, 1 = short, 2 = long) */
107 FALSE, /* pc_relative */
109 complain_overflow_unsigned, /* complain_on_overflow */
110 bfd_elf_generic_reloc, /* special_function */
111 "R_OR1K_8", /* name */
112 FALSE, /* partial_inplace */
115 FALSE), /* pcrel_offset */
117 HOWTO (R_OR1K_LO_16_IN_INSN, /* type */
119 2, /* size (0 = byte, 1 = short, 2 = long) */
121 FALSE, /* pc_relative */
123 complain_overflow_dont, /* complain_on_overflow */
124 bfd_elf_generic_reloc, /* special_function */
125 "R_OR1K_LO_16_IN_INSN", /* name */
126 FALSE, /* partial_inplace */
128 0x0000ffff, /* dst_mask */
129 FALSE), /* pcrel_offset */
131 HOWTO (R_OR1K_HI_16_IN_INSN, /* type */
133 2, /* size (0 = byte, 1 = short, 2 = long) */
135 FALSE, /* pc_relative */
137 complain_overflow_dont, /* complain_on_overflow */
138 bfd_elf_generic_reloc, /* special_function */
139 "R_OR1K_HI_16_IN_INSN", /* name */
140 FALSE, /* partial_inplace */
142 0x0000ffff, /* dst_mask */
143 FALSE), /* pcrel_offset */
145 /* A PC relative 26 bit relocation, right shifted by 2. */
146 HOWTO (R_OR1K_INSN_REL_26, /* type */
148 2, /* size (0 = byte, 1 = short, 2 = long) */
150 TRUE, /* pc_relative */
152 complain_overflow_signed, /* complain_on_overflow */
153 bfd_elf_generic_reloc, /* special_function */
154 "R_OR1K_INSN_REL_26", /* name */
155 FALSE, /* partial_inplace */
157 0x03ffffff, /* dst_mask */
158 TRUE), /* pcrel_offset */
160 /* GNU extension to record C++ vtable hierarchy. */
161 HOWTO (R_OR1K_GNU_VTINHERIT, /* type */
163 2, /* size (0 = byte, 1 = short, 2 = long) */
165 FALSE, /* pc_relative */
167 complain_overflow_dont, /* complain_on_overflow */
168 NULL, /* special_function */
169 "R_OR1K_GNU_VTINHERIT", /* name */
170 FALSE, /* partial_inplace */
173 FALSE), /* pcrel_offset */
175 /* GNU extension to record C++ vtable member usage. */
176 HOWTO (R_OR1K_GNU_VTENTRY, /* type */
178 2, /* size (0 = byte, 1 = short, 2 = long) */
180 FALSE, /* pc_relative */
182 complain_overflow_dont, /* complain_on_overflow */
183 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
184 "R_OR1K_GNU_VTENTRY", /* name */
185 FALSE, /* partial_inplace */
188 FALSE), /* pcrel_offset */
190 HOWTO (R_OR1K_32_PCREL,
192 2, /* size (0 = byte, 1 = short, 2 = long) */
194 TRUE, /* pc_relative */
196 complain_overflow_signed, /* complain_on_overflow */
197 bfd_elf_generic_reloc, /* special_function */
198 "R_OR1K_32_PCREL", /* name */
199 FALSE, /* partial_inplace */
201 0xffffffff, /* dst_mask */
202 TRUE), /* pcrel_offset */
204 HOWTO (R_OR1K_16_PCREL,
206 1, /* size (0 = byte, 1 = short, 2 = long) */
208 TRUE, /* pc_relative */
210 complain_overflow_signed, /* complain_on_overflow */
211 bfd_elf_generic_reloc, /* special_function */
212 "R_OR1K_16_PCREL", /* name */
213 FALSE, /* partial_inplace */
215 0xffff, /* dst_mask */
216 TRUE), /* pcrel_offset */
218 HOWTO (R_OR1K_8_PCREL,
220 0, /* size (0 = byte, 1 = short, 2 = long) */
222 TRUE, /* pc_relative */
224 complain_overflow_signed, /* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_OR1K_8_PCREL", /* name */
227 FALSE, /* partial_inplace */
230 TRUE), /* pcrel_offset */
232 HOWTO (R_OR1K_GOTPC_HI16, /* Type. */
233 16, /* Rightshift. */
234 2, /* Size (0 = byte, 1 = short, 2 = long). */
236 TRUE, /* PC_relative. */
238 complain_overflow_dont, /* Complain on overflow. */
239 bfd_elf_generic_reloc, /* Special Function. */
240 "R_OR1K_GOTPC_HI16", /* Name. */
241 FALSE, /* Partial Inplace. */
242 0, /* Source Mask. */
243 0xffff, /* Dest Mask. */
244 TRUE), /* PC relative offset? */
246 HOWTO (R_OR1K_GOTPC_LO16, /* Type. */
248 2, /* Size (0 = byte, 1 = short, 2 = long). */
250 TRUE, /* PC_relative. */
252 complain_overflow_dont, /* Complain on overflow. */
253 bfd_elf_generic_reloc, /* Special Function. */
254 "R_OR1K_GOTPC_LO16", /* Name. */
255 FALSE, /* Partial Inplace. */
256 0, /* Source Mask. */
257 0xffff, /* Dest Mask. */
258 TRUE), /* PC relative offset? */
260 HOWTO (R_OR1K_GOT16, /* type */
262 2, /* size (0 = byte, 1 = short, 2 = long) */
264 FALSE, /* pc_relative */
266 complain_overflow_signed, /* complain_on_overflow */
267 bfd_elf_generic_reloc, /* special_function */
268 "R_OR1K_GOT16", /* name */
269 FALSE, /* partial_inplace */
271 0xffff, /* dst_mask */
272 FALSE), /* pcrel_offset */
274 /* A 26 bit PLT relocation. Shifted by 2. */
275 HOWTO (R_OR1K_PLT26, /* Type. */
277 2, /* Size (0 = byte, 1 = short, 2 = long). */
279 TRUE, /* PC_relative. */
281 complain_overflow_dont, /* Complain on overflow. */
282 bfd_elf_generic_reloc,/* Special Function. */
283 "R_OR1K_PLT26", /* Name. */
284 FALSE, /* Partial Inplace. */
285 0, /* Source Mask. */
286 0x03ffffff, /* Dest Mask. */
287 TRUE), /* PC relative offset? */
289 HOWTO (R_OR1K_GOTOFF_HI16, /* type */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
293 FALSE, /* pc_relative */
295 complain_overflow_dont, /* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_OR1K_GOTOFF_HI16", /* name */
298 FALSE, /* partial_inplace */
300 0xffff, /* dst_mask */
301 FALSE), /* pcrel_offset */
303 HOWTO (R_OR1K_GOTOFF_LO16, /* type */
305 2, /* size (0 = byte, 1 = short, 2 = long) */
307 FALSE, /* pc_relative */
309 complain_overflow_dont, /* complain_on_overflow */
310 bfd_elf_generic_reloc, /* special_function */
311 "R_OR1K_GOTOFF_LO16", /* name */
312 FALSE, /* partial_inplace */
314 0xffff, /* dst_mask */
315 FALSE), /* pcrel_offset */
317 HOWTO (R_OR1K_COPY, /* type */
319 2, /* size (0 = byte, 1 = short, 2 = long) */
321 FALSE, /* pc_relative */
323 complain_overflow_bitfield, /* complain_on_overflow */
324 bfd_elf_generic_reloc, /* special_function */
325 "R_OR1K_COPY", /* name */
326 FALSE, /* partial_inplace */
327 0xffffffff, /* src_mask */
328 0xffffffff, /* dst_mask */
329 FALSE), /* pcrel_offset */
331 HOWTO (R_OR1K_GLOB_DAT, /* type */
333 2, /* size (0 = byte, 1 = short, 2 = long) */
335 FALSE, /* pc_relative */
337 complain_overflow_bitfield, /* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_OR1K_GLOB_DAT", /* name */
340 FALSE, /* partial_inplace */
341 0xffffffff, /* src_mask */
342 0xffffffff, /* dst_mask */
343 FALSE), /* pcrel_offset */
345 HOWTO (R_OR1K_JMP_SLOT, /* type */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
349 FALSE, /* pc_relative */
351 complain_overflow_bitfield, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_OR1K_JMP_SLOT", /* name */
354 FALSE, /* partial_inplace */
355 0xffffffff, /* src_mask */
356 0xffffffff, /* dst_mask */
357 FALSE), /* pcrel_offset */
359 HOWTO (R_OR1K_RELATIVE, /* type */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
363 FALSE, /* pc_relative */
365 complain_overflow_bitfield, /* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
367 "R_OR1K_RELATIVE", /* name */
368 FALSE, /* partial_inplace */
369 0xffffffff, /* src_mask */
370 0xffffffff, /* dst_mask */
371 FALSE), /* pcrel_offset */
373 HOWTO (R_OR1K_TLS_GD_HI16, /* type */
375 2, /* size (0 = byte, 1 = short, 2 = long) */
377 FALSE, /* pc_relative */
379 complain_overflow_dont, /* complain_on_overflow */
380 bfd_elf_generic_reloc, /* special_function */
381 "R_OR1K_TLS_GD_HI16", /* name */
382 FALSE, /* partial_inplace */
384 0xffff, /* dst_mask */
385 FALSE), /* pcrel_offset */
387 HOWTO (R_OR1K_TLS_GD_LO16, /* type */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
391 FALSE, /* pc_relative */
393 complain_overflow_dont, /* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_OR1K_TLS_GD_LO16", /* name */
396 FALSE, /* partial_inplace */
398 0xffff, /* dst_mask */
399 FALSE), /* pcrel_offset */
401 HOWTO (R_OR1K_TLS_LDM_HI16, /* type */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
405 FALSE, /* pc_relative */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_OR1K_TLS_LDM_HI16", /* name */
410 FALSE, /* partial_inplace */
412 0xffff, /* dst_mask */
413 FALSE), /* pcrel_offset */
415 HOWTO (R_OR1K_TLS_LDM_LO16, /* type */
417 2, /* size (0 = byte, 1 = short, 2 = long) */
419 FALSE, /* pc_relative */
421 complain_overflow_dont, /* complain_on_overflow */
422 bfd_elf_generic_reloc, /* special_function */
423 "R_OR1K_TLS_LDM_LO16", /* name */
424 FALSE, /* partial_inplace */
426 0xffff, /* dst_mask */
427 FALSE), /* pcrel_offset */
429 HOWTO (R_OR1K_TLS_LDO_HI16, /* type */
431 2, /* size (0 = byte, 1 = short, 2 = long) */
433 FALSE, /* pc_relative */
435 complain_overflow_dont, /* complain_on_overflow */
436 bfd_elf_generic_reloc, /* special_function */
437 "R_OR1K_TLS_LDO_HI16", /* name */
438 FALSE, /* partial_inplace */
440 0xffff, /* dst_mask */
441 FALSE), /* pcrel_offset */
443 HOWTO (R_OR1K_TLS_LDO_LO16, /* type */
445 2, /* size (0 = byte, 1 = short, 2 = long) */
447 FALSE, /* pc_relative */
449 complain_overflow_dont, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_OR1K_TLS_LDO_LO16", /* name */
452 FALSE, /* partial_inplace */
454 0xffff, /* dst_mask */
455 FALSE), /* pcrel_offset */
457 HOWTO (R_OR1K_TLS_IE_HI16, /* type */
459 2, /* size (0 = byte, 1 = short, 2 = long) */
461 FALSE, /* pc_relative */
463 complain_overflow_dont, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_OR1K_TLS_IE_HI16", /* name */
466 FALSE, /* partial_inplace */
468 0xffff, /* dst_mask */
469 FALSE), /* pcrel_offset */
471 HOWTO (R_OR1K_TLS_IE_LO16, /* type */
473 2, /* size (0 = byte, 1 = short, 2 = long) */
475 FALSE, /* pc_relative */
477 complain_overflow_dont, /* complain_on_overflow */
478 bfd_elf_generic_reloc, /* special_function */
479 "R_OR1K_TLS_IE_LO16", /* name */
480 FALSE, /* partial_inplace */
482 0xffff, /* dst_mask */
483 FALSE), /* pcrel_offset */
485 HOWTO (R_OR1K_TLS_LE_HI16, /* type */
487 2, /* size (0 = byte, 1 = short, 2 = long) */
489 FALSE, /* pc_relative */
491 complain_overflow_dont, /* complain_on_overflow */
492 bfd_elf_generic_reloc, /* special_function */
493 "R_OR1K_TLS_LE_HI16", /* name */
494 FALSE, /* partial_inplace */
496 0xffff, /* dst_mask */
497 FALSE), /* pcrel_offset */
499 HOWTO (R_OR1K_TLS_LE_LO16, /* type */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
503 FALSE, /* pc_relative */
505 complain_overflow_dont, /* complain_on_overflow */
506 bfd_elf_generic_reloc, /* special_function */
507 "R_OR1K_TLS_LE_LO16", /* name */
508 FALSE, /* partial_inplace */
510 0xffff, /* dst_mask */
511 FALSE), /* pcrel_offset */
515 /* Map BFD reloc types to Or1k ELF reloc types. */
517 struct or1k_reloc_map
519 bfd_reloc_code_real_type bfd_reloc_val;
520 unsigned int or1k_reloc_val;
523 static const struct or1k_reloc_map or1k_reloc_map[] =
525 { BFD_RELOC_NONE, R_OR1K_NONE },
526 { BFD_RELOC_32, R_OR1K_32 },
527 { BFD_RELOC_16, R_OR1K_16 },
528 { BFD_RELOC_8, R_OR1K_8 },
529 { BFD_RELOC_LO16, R_OR1K_LO_16_IN_INSN },
530 { BFD_RELOC_HI16, R_OR1K_HI_16_IN_INSN },
531 { BFD_RELOC_OR1K_REL_26, R_OR1K_INSN_REL_26 },
532 { BFD_RELOC_VTABLE_ENTRY, R_OR1K_GNU_VTENTRY },
533 { BFD_RELOC_VTABLE_INHERIT, R_OR1K_GNU_VTINHERIT },
534 { BFD_RELOC_32_PCREL, R_OR1K_32_PCREL },
535 { BFD_RELOC_16_PCREL, R_OR1K_16_PCREL },
536 { BFD_RELOC_8_PCREL, R_OR1K_8_PCREL },
537 { BFD_RELOC_OR1K_GOTPC_HI16, R_OR1K_GOTPC_HI16 },
538 { BFD_RELOC_OR1K_GOTPC_LO16, R_OR1K_GOTPC_LO16 },
539 { BFD_RELOC_OR1K_GOT16, R_OR1K_GOT16 },
540 { BFD_RELOC_OR1K_PLT26, R_OR1K_PLT26 },
541 { BFD_RELOC_OR1K_GOTOFF_HI16, R_OR1K_GOTOFF_HI16 },
542 { BFD_RELOC_OR1K_GOTOFF_LO16, R_OR1K_GOTOFF_LO16 },
543 { BFD_RELOC_OR1K_GLOB_DAT, R_OR1K_GLOB_DAT },
544 { BFD_RELOC_OR1K_COPY, R_OR1K_COPY },
545 { BFD_RELOC_OR1K_JMP_SLOT, R_OR1K_JMP_SLOT },
546 { BFD_RELOC_OR1K_RELATIVE, R_OR1K_RELATIVE },
547 { BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 },
548 { BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 },
549 { BFD_RELOC_OR1K_TLS_LDM_HI16, R_OR1K_TLS_LDM_HI16 },
550 { BFD_RELOC_OR1K_TLS_LDM_LO16, R_OR1K_TLS_LDM_LO16 },
551 { BFD_RELOC_OR1K_TLS_LDO_HI16, R_OR1K_TLS_LDO_HI16 },
552 { BFD_RELOC_OR1K_TLS_LDO_LO16, R_OR1K_TLS_LDO_LO16 },
553 { BFD_RELOC_OR1K_TLS_IE_HI16, R_OR1K_TLS_IE_HI16 },
554 { BFD_RELOC_OR1K_TLS_IE_LO16, R_OR1K_TLS_IE_LO16 },
555 { BFD_RELOC_OR1K_TLS_LE_HI16, R_OR1K_TLS_LE_HI16 },
556 { BFD_RELOC_OR1K_TLS_LE_LO16, R_OR1K_TLS_LE_LO16 },
559 /* The linker needs to keep track of the number of relocs that it
560 decides to copy as dynamic relocs in check_relocs for each symbol.
561 This is so that it can later discard them if they are found to be
562 unnecessary. We store the information in a field extending the
563 regular ELF linker hash table. */
565 struct elf_or1k_dyn_relocs
567 struct elf_or1k_dyn_relocs *next;
569 /* The input section of the reloc. */
572 /* Total number of relocs copied for the input section. */
575 /* Number of pc-relative relocs copied for the input section. */
576 bfd_size_type pc_count;
579 #define TLS_UNKNOWN 0
586 /* ELF linker hash entry. */
587 struct elf_or1k_link_hash_entry
589 struct elf_link_hash_entry root;
591 /* Track dynamic relocs copied for this symbol. */
592 struct elf_or1k_dyn_relocs *dyn_relocs;
594 /* Track type of TLS access. */
595 unsigned char tls_type;
598 /* ELF object data. */
599 struct elf_or1k_obj_tdata
601 struct elf_obj_tdata root;
603 /* tls_type for each local got entry. */
604 unsigned char *local_tls_type;
607 #define elf_or1k_tdata(abfd) \
608 ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
610 #define elf_or1k_local_tls_type(abfd) \
611 (elf_or1k_tdata (abfd)->local_tls_type)
613 /* ELF linker hash table. */
614 struct elf_or1k_link_hash_table
616 struct elf_link_hash_table root;
618 /* Short-cuts to get to dynamic linker sections. */
627 /* Small local sym to section mapping cache. */
628 struct sym_cache sym_sec;
631 /* Get the ELF linker hash table from a link_info structure. */
632 #define or1k_elf_hash_table(p) \
633 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
634 == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
637 elf_or1k_mkobject (bfd *abfd)
639 return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
643 /* Create an entry in an or1k ELF linker hash table. */
645 static struct bfd_hash_entry *
646 or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
647 struct bfd_hash_table *table,
650 struct elf_or1k_link_hash_entry *ret =
651 (struct elf_or1k_link_hash_entry *) entry;
653 /* Allocate the structure if it has not already been allocated by a
656 ret = bfd_hash_allocate (table,
657 sizeof (struct elf_or1k_link_hash_entry));
661 /* Call the allocation method of the superclass. */
662 ret = ((struct elf_or1k_link_hash_entry *)
663 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
667 struct elf_or1k_link_hash_entry *eh;
669 eh = (struct elf_or1k_link_hash_entry *) ret;
670 eh->dyn_relocs = NULL;
671 eh->tls_type = TLS_UNKNOWN;
674 return (struct bfd_hash_entry *) ret;
677 /* Create an or1k ELF linker hash table. */
679 static struct bfd_link_hash_table *
680 or1k_elf_link_hash_table_create (bfd *abfd)
682 struct elf_or1k_link_hash_table *ret;
683 bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table);
685 ret = bfd_zmalloc (amt);
689 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
690 or1k_elf_link_hash_newfunc,
691 sizeof (struct elf_or1k_link_hash_entry),
698 return &ret->root.root;
701 static reloc_howto_type *
702 or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
703 bfd_reloc_code_real_type code)
707 for (i = ARRAY_SIZE (or1k_reloc_map); i--;)
708 if (or1k_reloc_map[i].bfd_reloc_val == code)
709 return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val];
714 static reloc_howto_type *
715 or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
721 i < (sizeof (or1k_elf_howto_table)
722 / sizeof (or1k_elf_howto_table[0]));
724 if (or1k_elf_howto_table[i].name != NULL
725 && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
726 return &or1k_elf_howto_table[i];
731 /* Set the howto pointer for an Or1k ELF reloc. */
734 or1k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
736 Elf_Internal_Rela * dst)
740 r_type = ELF32_R_TYPE (dst->r_info);
741 if (r_type >= (unsigned int) R_OR1K_max)
743 /* xgettext:c-format */
744 _bfd_error_handler (_("%B: invalid OR1K reloc number: %d"), abfd, r_type);
747 cache_ptr->howto = & or1k_elf_howto_table[r_type];
751 /* Return the relocation value for @tpoff relocations.. */
753 tpoff (struct bfd_link_info *info, bfd_vma address)
755 /* If tls_sec is NULL, we should have signalled an error already. */
756 if (elf_hash_table (info)->tls_sec == NULL)
759 /* The thread pointer on or1k stores the address after the TCB where
760 the data is, just compute the difference. No need to compensate
761 for the size of TCB. */
762 return (address - elf_hash_table (info)->tls_sec->vma);
765 /* Relocate an Or1k ELF section.
767 The RELOCATE_SECTION function is called by the new ELF backend linker
768 to handle the relocations for a section.
770 The relocs are always passed as Rela structures; if the section
771 actually uses Rel structures, the r_addend field will always be
774 This function is responsible for adjusting the section contents as
775 necessary, and (if using Rela relocs and generating a relocatable
776 output file) adjusting the reloc addend as necessary.
778 This function does not have to worry about setting the reloc
779 address or the reloc symbol index.
781 LOCAL_SYMS is a pointer to the swapped in local symbols.
783 LOCAL_SECTIONS is an array giving the section in the input file
784 corresponding to the st_shndx field of each local symbol.
786 The global hash table entry for the global symbols can be found
787 via elf_sym_hashes (input_bfd).
789 When generating relocatable output, this function must handle
790 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
791 going to be the section symbol corresponding to the output
792 section, which means that the addend must be adjusted
796 or1k_elf_relocate_section (bfd *output_bfd,
797 struct bfd_link_info *info,
799 asection *input_section,
801 Elf_Internal_Rela *relocs,
802 Elf_Internal_Sym *local_syms,
803 asection **local_sections)
805 Elf_Internal_Shdr *symtab_hdr;
806 struct elf_link_hash_entry **sym_hashes;
807 Elf_Internal_Rela *rel;
808 Elf_Internal_Rela *relend;
809 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
812 bfd_vma *local_got_offsets;
818 dynobj = htab->root.dynobj;
819 local_got_offsets = elf_local_got_offsets (input_bfd);
821 sreloc = elf_section_data (input_section)->sreloc;
825 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
826 sym_hashes = elf_sym_hashes (input_bfd);
827 relend = relocs + input_section->reloc_count;
829 for (rel = relocs; rel < relend; rel++)
831 reloc_howto_type *howto;
832 unsigned long r_symndx;
833 Elf_Internal_Sym *sym;
835 struct elf_link_hash_entry *h;
837 bfd_reloc_status_type r;
838 const char *name = NULL;
841 r_type = ELF32_R_TYPE (rel->r_info);
842 r_symndx = ELF32_R_SYM (rel->r_info);
844 if (r_type == R_OR1K_GNU_VTINHERIT
845 || r_type == R_OR1K_GNU_VTENTRY)
848 if (r_type < 0 || r_type >= (int) R_OR1K_max)
850 bfd_set_error (bfd_error_bad_value);
854 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
859 if (r_symndx < symtab_hdr->sh_info)
861 sym = local_syms + r_symndx;
862 sec = local_sections[r_symndx];
863 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
865 name = bfd_elf_string_from_elf_section
866 (input_bfd, symtab_hdr->sh_link, sym->st_name);
867 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
871 bfd_boolean unresolved_reloc, warned, ignored;
873 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
874 r_symndx, symtab_hdr, sym_hashes,
876 unresolved_reloc, warned, ignored);
879 if (sec != NULL && discarded_section (sec))
880 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
881 rel, 1, relend, howto, 0, contents);
883 if (bfd_link_relocatable (info))
890 if (htab->splt != NULL && h != NULL
891 && h->plt.offset != (bfd_vma) -1)
893 relocation = (htab->splt->output_section->vma
894 + htab->splt->output_offset
901 /* Relocation is to the entry for this symbol in the global
903 BFD_ASSERT (sgot != NULL);
910 BFD_ASSERT (off != (bfd_vma) -1);
912 dyn = htab->root.dynamic_sections_created;
913 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
916 || (bfd_link_pic (info)
917 && SYMBOL_REFERENCES_LOCAL (info, h)))
919 /* This is actually a static link, or it is a
920 -Bsymbolic link and the symbol is defined
921 locally, or the symbol was forced to be local
922 because of a version file. We must initialize
923 this entry in the global offset table. Since the
924 offset must always be a multiple of 4, we use the
925 least significant bit to record whether we have
926 initialized it already.
928 When doing a dynamic link, we create a .rela.got
929 relocation entry to initialize the value. This
930 is done in the finish_dynamic_symbol routine. */
935 /* Write entry in GOT. */
936 bfd_put_32 (output_bfd, relocation,
937 sgot->contents + off);
938 /* Mark GOT entry as having been written. */
943 relocation = sgot->output_offset + off;
950 BFD_ASSERT (local_got_offsets != NULL
951 && local_got_offsets[r_symndx] != (bfd_vma) -1);
953 /* Get offset into GOT table. */
954 off = local_got_offsets[r_symndx];
956 /* The offset must always be a multiple of 4. We use
957 the least significant bit to record whether we have
958 already processed this entry. */
963 /* Write entry in GOT. */
964 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
965 if (bfd_link_pic (info))
968 Elf_Internal_Rela outrel;
970 /* We need to generate a R_OR1K_RELATIVE reloc
971 for the dynamic linker. */
972 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
973 BFD_ASSERT (srelgot != NULL);
975 outrel.r_offset = (sgot->output_section->vma
976 + sgot->output_offset
978 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
979 outrel.r_addend = relocation;
980 loc = srelgot->contents;
981 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
982 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
983 ++srelgot->reloc_count;
986 local_got_offsets[r_symndx] |= 1;
988 relocation = sgot->output_offset + off;
991 /* Addend should be zero. */
992 if (rel->r_addend != 0)
994 (_("internal error: addend should be zero for R_OR1K_GOT16"));
998 case R_OR1K_GOTOFF_LO16:
999 case R_OR1K_GOTOFF_HI16:
1000 /* Relocation is offset from GOT. */
1001 BFD_ASSERT (sgot != NULL);
1003 -= (htab->root.hgot->root.u.def.value
1004 + htab->root.hgot->root.u.def.section->output_offset
1005 + htab->root.hgot->root.u.def.section->output_section->vma);
1008 case R_OR1K_INSN_REL_26:
1009 case R_OR1K_HI_16_IN_INSN:
1010 case R_OR1K_LO_16_IN_INSN:
1014 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
1015 from removed linkonce sections, or sections discarded by
1017 if (r_symndx == STN_UNDEF
1018 || (input_section->flags & SEC_ALLOC) == 0)
1021 if ((bfd_link_pic (info)
1023 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1024 || h->root.type != bfd_link_hash_undefweak)
1025 && (howto->type != R_OR1K_INSN_REL_26
1026 || !SYMBOL_CALLS_LOCAL (info, h)))
1027 || (!bfd_link_pic (info)
1033 || h->root.type == bfd_link_hash_undefweak
1034 || h->root.type == bfd_link_hash_undefined)))
1036 Elf_Internal_Rela outrel;
1040 /* When generating a shared object, these relocations
1041 are copied into the output file to be resolved at run
1044 BFD_ASSERT (sreloc != NULL);
1049 _bfd_elf_section_offset (output_bfd, info, input_section,
1051 if (outrel.r_offset == (bfd_vma) -1)
1053 else if (outrel.r_offset == (bfd_vma) -2)
1055 outrel.r_offset += (input_section->output_section->vma
1056 + input_section->output_offset);
1059 memset (&outrel, 0, sizeof outrel);
1060 /* h->dynindx may be -1 if the symbol was marked to
1063 && ((! info->symbolic && h->dynindx != -1)
1064 || !h->def_regular))
1066 BFD_ASSERT (h->dynindx != -1);
1067 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1068 outrel.r_addend = rel->r_addend;
1072 if (r_type == R_OR1K_32)
1074 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1075 outrel.r_addend = relocation + rel->r_addend;
1081 (_("%B: probably compiled without -fPIC?"),
1083 bfd_set_error (bfd_error_bad_value);
1088 loc = sreloc->contents;
1089 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1090 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1096 case R_OR1K_TLS_LDM_HI16:
1097 case R_OR1K_TLS_LDM_LO16:
1098 case R_OR1K_TLS_LDO_HI16:
1099 case R_OR1K_TLS_LDO_LO16:
1100 /* TODO: implement support for local dynamic. */
1103 (_("%B: support for local dynamic not implemented"),
1105 bfd_set_error (bfd_error_bad_value);
1109 case R_OR1K_TLS_GD_HI16:
1110 case R_OR1K_TLS_GD_LO16:
1111 case R_OR1K_TLS_IE_HI16:
1112 case R_OR1K_TLS_IE_LO16:
1115 Elf_Internal_Rela rela;
1119 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1121 /* Mark as TLS related GOT entry by setting
1122 bit 2 as well as bit 1. */
1125 gotoff = h->got.offset;
1130 gotoff = local_got_offsets[r_symndx];
1131 local_got_offsets[r_symndx] |= 3;
1134 /* Only process the relocation once. */
1137 relocation = sgot->output_offset + (gotoff & ~3);
1141 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1142 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1144 /* Dynamic entries will require relocations. if we do not need
1145 them we will just use the default R_OR1K_NONE and
1146 not set anything. */
1147 dynamic = bfd_link_pic (info)
1148 || (sec && (sec->flags & SEC_ALLOC) != 0
1150 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1153 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
1154 || howto->type == R_OR1K_TLS_GD_LO16))
1158 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1159 for (i = 0; i < 2; ++i)
1161 rela.r_offset = sgot->output_section->vma +
1162 sgot->output_offset + gotoff + i*4;
1163 if (h != NULL && h->dynindx != -1)
1165 rela.r_info = ELF32_R_INFO (h->dynindx,
1166 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1171 rela.r_info = ELF32_R_INFO (0,
1172 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1173 rela.r_addend = tpoff (info, relocation);
1176 loc = sreloc->contents;
1177 loc += sreloc->reloc_count++ *
1178 sizeof (Elf32_External_Rela);
1180 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1181 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1185 else if (howto->type == R_OR1K_TLS_GD_HI16
1186 || howto->type == R_OR1K_TLS_GD_LO16)
1188 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1189 bfd_put_32 (output_bfd, tpoff (info, relocation),
1190 sgot->contents + gotoff + 4);
1195 /* Add TPOFF GOT and rela entries. */
1196 rela.r_offset = sgot->output_section->vma +
1197 sgot->output_offset + gotoff;
1198 if (h != NULL && h->dynindx != -1)
1200 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1205 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1206 rela.r_addend = tpoff (info, relocation);
1209 loc = sreloc->contents;
1210 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1212 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1213 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1218 bfd_put_32 (output_bfd, tpoff (info, relocation),
1219 sgot->contents + gotoff);
1221 relocation = sgot->output_offset + gotoff;
1224 case R_OR1K_TLS_LE_HI16:
1225 case R_OR1K_TLS_LE_LO16:
1227 /* Relocation is offset from TP. */
1228 relocation = tpoff (info, relocation);
1231 case R_OR1K_TLS_DTPMOD:
1232 case R_OR1K_TLS_DTPOFF:
1233 case R_OR1K_TLS_TPOFF:
1234 /* These are resolved dynamically on load and shouldn't
1235 be used as linker input. */
1238 (_("%B: will not resolve runtime TLS relocation"),
1240 bfd_set_error (bfd_error_bad_value);
1246 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1247 rel->r_offset, relocation, rel->r_addend);
1249 if (r != bfd_reloc_ok)
1251 const char *msg = NULL;
1255 case bfd_reloc_overflow:
1256 (*info->callbacks->reloc_overflow)
1257 (info, (h ? &h->root : NULL), name, howto->name,
1258 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1261 case bfd_reloc_undefined:
1262 (*info->callbacks->undefined_symbol)
1263 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1266 case bfd_reloc_outofrange:
1267 msg = _("internal error: out of range error");
1270 case bfd_reloc_notsupported:
1271 msg = _("internal error: unsupported relocation error");
1274 case bfd_reloc_dangerous:
1275 msg = _("internal error: dangerous relocation");
1279 msg = _("internal error: unknown error");
1284 (*info->callbacks->warning) (info, msg, name, input_bfd,
1285 input_section, rel->r_offset);
1292 /* Return the section that should be marked against GC for a given
1296 or1k_elf_gc_mark_hook (asection *sec,
1297 struct bfd_link_info *info,
1298 Elf_Internal_Rela *rel,
1299 struct elf_link_hash_entry *h,
1300 Elf_Internal_Sym *sym)
1303 switch (ELF32_R_TYPE (rel->r_info))
1305 case R_OR1K_GNU_VTINHERIT:
1306 case R_OR1K_GNU_VTENTRY:
1310 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1314 or1k_elf_gc_sweep_hook (bfd *abfd,
1315 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1317 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
1319 /* Update the got entry reference counts for the section being removed. */
1320 Elf_Internal_Shdr *symtab_hdr;
1321 struct elf_link_hash_entry **sym_hashes;
1322 bfd_signed_vma *local_got_refcounts;
1323 const Elf_Internal_Rela *rel, *relend;
1325 elf_section_data (sec)->local_dynrel = NULL;
1327 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1328 sym_hashes = elf_sym_hashes (abfd);
1329 local_got_refcounts = elf_local_got_refcounts (abfd);
1331 relend = relocs + sec->reloc_count;
1332 for (rel = relocs; rel < relend; rel++)
1334 unsigned long r_symndx;
1335 struct elf_link_hash_entry *h = NULL;
1337 r_symndx = ELF32_R_SYM (rel->r_info);
1338 if (r_symndx >= symtab_hdr->sh_info)
1340 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1341 while (h->root.type == bfd_link_hash_indirect
1342 || h->root.type == bfd_link_hash_warning)
1343 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1346 switch (ELF32_R_TYPE (rel->r_info))
1351 if (h->got.refcount > 0)
1356 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
1357 local_got_refcounts[r_symndx]--;
1368 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1369 shortcuts to them in our hash table. */
1372 create_got_section (bfd *dynobj, struct bfd_link_info *info)
1374 struct elf_or1k_link_hash_table *htab;
1377 /* This function may be called more than once. */
1378 s = bfd_get_section_by_name (dynobj, ".got");
1379 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
1382 htab = or1k_elf_hash_table (info);
1386 if (! _bfd_elf_create_got_section (dynobj, info))
1389 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1390 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1391 htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1393 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1396 if (! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC
1400 | SEC_LINKER_CREATED
1402 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
1408 /* Look through the relocs for a section during the first phase. */
1411 or1k_elf_check_relocs (bfd *abfd,
1412 struct bfd_link_info *info,
1414 const Elf_Internal_Rela *relocs)
1416 Elf_Internal_Shdr *symtab_hdr;
1417 struct elf_link_hash_entry **sym_hashes;
1418 const Elf_Internal_Rela *rel;
1420 const Elf_Internal_Rela *rel_end;
1421 struct elf_or1k_link_hash_table *htab;
1423 asection *sreloc = NULL;
1425 if (bfd_link_relocatable (info))
1428 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1429 sym_hashes = elf_sym_hashes (abfd);
1431 htab = or1k_elf_hash_table (info);
1435 dynobj = htab->root.dynobj;
1437 rel_end = relocs + sec->reloc_count;
1438 for (rel = relocs; rel < rel_end; rel++)
1440 struct elf_link_hash_entry *h;
1441 unsigned long r_symndx;
1442 unsigned char tls_type;
1444 r_symndx = ELF32_R_SYM (rel->r_info);
1445 if (r_symndx < symtab_hdr->sh_info)
1449 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1450 while (h->root.type == bfd_link_hash_indirect
1451 || h->root.type == bfd_link_hash_warning)
1452 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1454 /* PR15323, ref flags aren't set for references in the same
1456 h->root.non_ir_ref = 1;
1459 switch (ELF32_R_TYPE (rel->r_info))
1461 case R_OR1K_TLS_GD_HI16:
1462 case R_OR1K_TLS_GD_LO16:
1465 case R_OR1K_TLS_LDM_HI16:
1466 case R_OR1K_TLS_LDM_LO16:
1467 case R_OR1K_TLS_LDO_HI16:
1468 case R_OR1K_TLS_LDO_LO16:
1471 case R_OR1K_TLS_IE_HI16:
1472 case R_OR1K_TLS_IE_LO16:
1475 case R_OR1K_TLS_LE_HI16:
1476 case R_OR1K_TLS_LE_LO16:
1480 tls_type = TLS_NONE;
1483 /* Record TLS type. */
1485 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
1488 unsigned char *local_tls_type;
1490 /* This is a TLS type record for a local symbol. */
1491 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1492 if (local_tls_type == NULL)
1496 size = symtab_hdr->sh_info;
1497 local_tls_type = bfd_zalloc (abfd, size);
1498 if (local_tls_type == NULL)
1500 elf_or1k_local_tls_type (abfd) = local_tls_type;
1502 local_tls_type[r_symndx] = tls_type;
1505 switch (ELF32_R_TYPE (rel->r_info))
1507 /* This relocation describes the C++ object vtable hierarchy.
1508 Reconstruct it for later use during GC. */
1509 case R_OR1K_GNU_VTINHERIT:
1510 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1514 /* This relocation describes which C++ vtable entries are actually
1515 used. Record for later use during GC. */
1516 case R_OR1K_GNU_VTENTRY:
1517 BFD_ASSERT (h != NULL);
1519 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1523 /* This relocation requires .plt entry. */
1528 h->plt.refcount += 1;
1533 case R_OR1K_GOTOFF_HI16:
1534 case R_OR1K_GOTOFF_LO16:
1535 case R_OR1K_TLS_GD_HI16:
1536 case R_OR1K_TLS_GD_LO16:
1537 case R_OR1K_TLS_IE_HI16:
1538 case R_OR1K_TLS_IE_LO16:
1539 if (htab->sgot == NULL)
1542 htab->root.dynobj = dynobj = abfd;
1543 if (! create_got_section (dynobj, info))
1547 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1548 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1551 h->got.refcount += 1;
1554 bfd_signed_vma *local_got_refcounts;
1556 /* This is a global offset table entry for a local symbol. */
1557 local_got_refcounts = elf_local_got_refcounts (abfd);
1558 if (local_got_refcounts == NULL)
1562 size = symtab_hdr->sh_info;
1563 size *= sizeof (bfd_signed_vma);
1564 local_got_refcounts = bfd_zalloc (abfd, size);
1565 if (local_got_refcounts == NULL)
1567 elf_local_got_refcounts (abfd) = local_got_refcounts;
1569 local_got_refcounts[r_symndx] += 1;
1574 case R_OR1K_INSN_REL_26:
1575 case R_OR1K_HI_16_IN_INSN:
1576 case R_OR1K_LO_16_IN_INSN:
1580 if (h != NULL && !bfd_link_pic (info))
1582 /* We may need a copy reloc. */
1585 /* We may also need a .plt entry. */
1586 h->plt.refcount += 1;
1587 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1588 h->pointer_equality_needed = 1;
1591 /* If we are creating a shared library, and this is a reloc
1592 against a global symbol, or a non PC relative reloc
1593 against a local symbol, then we need to copy the reloc
1594 into the shared library. However, if we are linking with
1595 -Bsymbolic, we do not need to copy a reloc against a
1596 global symbol which is defined in an object we are
1597 including in the link (i.e., DEF_REGULAR is set). At
1598 this point we have not seen all the input files, so it is
1599 possible that DEF_REGULAR is not set now but will be set
1600 later (it is never cleared). In case of a weak definition,
1601 DEF_REGULAR may be cleared later by a strong definition in
1602 a shared library. We account for that possibility below by
1603 storing information in the relocs_copied field of the hash
1604 table entry. A similar situation occurs when creating
1605 shared libraries and symbol visibility changes render the
1608 If on the other hand, we are creating an executable, we
1609 may need to keep relocations for symbols satisfied by a
1610 dynamic library if we manage to avoid copy relocs for the
1613 if ((bfd_link_pic (info)
1614 && (sec->flags & SEC_ALLOC) != 0
1615 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1617 && (!SYMBOLIC_BIND (info, h)
1618 || h->root.type == bfd_link_hash_defweak
1619 || !h->def_regular))))
1620 || (!bfd_link_pic (info)
1621 && (sec->flags & SEC_ALLOC) != 0
1623 && (h->root.type == bfd_link_hash_defweak
1624 || !h->def_regular)))
1626 struct elf_or1k_dyn_relocs *p;
1627 struct elf_or1k_dyn_relocs **head;
1629 /* When creating a shared object, we must copy these
1630 relocs into the output file. We create a reloc
1631 section in dynobj and make room for the reloc. */
1635 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1636 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1638 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1642 if (strncmp (name, ".rela", 5) != 0
1643 || strcmp (bfd_get_section_name (abfd, sec),
1647 /* xgettext:c-format */
1648 (_("%B: bad relocation section name `%s\'"),
1652 if (htab->root.dynobj == NULL)
1653 htab->root.dynobj = abfd;
1654 dynobj = htab->root.dynobj;
1656 sreloc = bfd_get_section_by_name (dynobj, name);
1659 sreloc = _bfd_elf_make_dynamic_reloc_section
1660 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1665 elf_section_data (sec)->sreloc = sreloc;
1668 /* If this is a global symbol, we count the number of
1669 relocations we need for this symbol. */
1671 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1674 /* Track dynamic relocs needed for local syms too.
1675 We really need local syms available to do this
1679 Elf_Internal_Sym *isym;
1682 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1687 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1691 vpp = &elf_section_data (s)->local_dynrel;
1692 head = (struct elf_or1k_dyn_relocs **) vpp;
1696 if (p == NULL || p->sec != sec)
1698 bfd_size_type amt = sizeof *p;
1699 p = ((struct elf_or1k_dyn_relocs *)
1700 bfd_alloc (htab->root.dynobj, amt));
1711 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1722 /* Finish up the dynamic sections. */
1725 or1k_elf_finish_dynamic_sections (bfd *output_bfd,
1726 struct bfd_link_info *info)
1729 asection *sdyn, *sgot;
1730 struct elf_or1k_link_hash_table *htab;
1732 htab = or1k_elf_hash_table (info);
1736 dynobj = htab->root.dynobj;
1738 sgot = htab->sgotplt;
1739 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1741 if (htab->root.dynamic_sections_created)
1744 Elf32_External_Dyn *dyncon, *dynconend;
1746 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1748 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1749 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1751 for (; dyncon < dynconend; dyncon++)
1753 Elf_Internal_Dyn dyn;
1756 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1765 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1770 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1775 dyn.d_un.d_val = s->size;
1779 /* My reading of the SVR4 ABI indicates that the
1780 procedure linkage table relocs (DT_JMPREL) should be
1781 included in the overall relocs (DT_RELA). This is
1782 what Solaris does. However, UnixWare can not handle
1783 that case. Therefore, we override the DT_RELASZ entry
1784 here to make it not include the JMPREL relocs. Since
1785 the linker script arranges for .rela.plt to follow all
1786 other relocation sections, we don't have to worry
1787 about changing the DT_RELA entry. */
1788 if (htab->srelplt != NULL)
1791 dyn.d_un.d_val -= s->size;
1795 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1799 /* Fill in the first entry in the procedure linkage table. */
1801 if (splt && splt->size > 0)
1803 if (bfd_link_pic (info))
1805 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1807 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1808 splt->contents + 4);
1809 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1810 splt->contents + 8);
1811 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1812 splt->contents + 12);
1813 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1814 splt->contents + 16);
1819 /* addr = .got + 4 */
1820 addr = sgot->output_section->vma + sgot->output_offset + 4;
1821 bfd_put_32 (output_bfd,
1822 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1824 bfd_put_32 (output_bfd,
1825 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1826 splt->contents + 4);
1827 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1828 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1829 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1832 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1836 /* Set the first entry in the global offset table to the address of
1837 the dynamic section. */
1838 if (sgot && sgot->size > 0)
1841 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1843 bfd_put_32 (output_bfd,
1844 sdyn->output_section->vma + sdyn->output_offset,
1846 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1849 if (htab->sgot && htab->sgot->size > 0)
1850 elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4;
1855 /* Finish up dynamic symbol handling. We set the contents of various
1856 dynamic sections here. */
1859 or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
1860 struct bfd_link_info *info,
1861 struct elf_link_hash_entry *h,
1862 Elf_Internal_Sym *sym)
1864 struct elf_or1k_link_hash_table *htab;
1867 htab = or1k_elf_hash_table (info);
1871 if (h->plt.offset != (bfd_vma) -1)
1880 Elf_Internal_Rela rela;
1882 /* This symbol has an entry in the procedure linkage table. Set
1884 BFD_ASSERT (h->dynindx != -1);
1887 sgot = htab->sgotplt;
1888 srela = htab->srelplt;
1889 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1891 /* Get the index in the procedure linkage table which
1892 corresponds to this symbol. This is the index of this symbol
1893 in all the symbols for which we are making plt entries. The
1894 first entry in the procedure linkage table is reserved. */
1895 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1897 /* Get the offset into the .got table of the entry that
1898 corresponds to this function. Each .got entry is 4 bytes.
1899 The first three are reserved. */
1900 got_offset = (plt_index + 3) * 4;
1901 got_addr = got_offset;
1903 /* Fill in the entry in the procedure linkage table. */
1904 if (! bfd_link_pic (info))
1906 got_addr += htab->sgotplt->output_section->vma
1907 + htab->sgotplt->output_offset;
1908 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1909 splt->contents + h->plt.offset);
1910 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1911 splt->contents + h->plt.offset + 4);
1912 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1913 splt->contents + h->plt.offset + 8);
1914 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1915 splt->contents + h->plt.offset + 12);
1916 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1917 | plt_index * sizeof (Elf32_External_Rela),
1918 splt->contents + h->plt.offset + 16);
1922 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1923 splt->contents + h->plt.offset);
1924 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1925 | plt_index * sizeof (Elf32_External_Rela),
1926 splt->contents + h->plt.offset + 4);
1927 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1928 splt->contents + h->plt.offset + 8);
1929 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1930 splt->contents + h->plt.offset + 12);
1931 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1932 splt->contents + h->plt.offset + 16);
1935 /* Fill in the entry in the global offset table. */
1936 bfd_put_32 (output_bfd,
1937 (splt->output_section->vma
1938 + splt->output_offset), /* Same offset. */
1939 sgot->contents + got_offset);
1941 /* Fill in the entry in the .rela.plt section. */
1942 rela.r_offset = (sgot->output_section->vma
1943 + sgot->output_offset
1945 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1947 loc = srela->contents;
1948 loc += plt_index * sizeof (Elf32_External_Rela);
1949 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1951 if (!h->def_regular)
1953 /* Mark the symbol as undefined, rather than as defined in
1954 the .plt section. Leave the value alone. */
1955 sym->st_shndx = SHN_UNDEF;
1960 if (h->got.offset != (bfd_vma) -1
1961 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1965 Elf_Internal_Rela rela;
1967 /* This symbol has an entry in the global offset table. Set it
1970 srela = htab->srelgot;
1971 BFD_ASSERT (sgot != NULL && srela != NULL);
1973 rela.r_offset = (sgot->output_section->vma
1974 + sgot->output_offset
1975 + (h->got.offset &~ 1));
1977 /* If this is a -Bsymbolic link, and the symbol is defined
1978 locally, we just want to emit a RELATIVE reloc. Likewise if
1979 the symbol was forced to be local because of a version file.
1980 The entry in the global offset table will already have been
1981 initialized in the relocate_section function. */
1982 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
1984 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1985 rela.r_addend = (h->root.u.def.value
1986 + h->root.u.def.section->output_section->vma
1987 + h->root.u.def.section->output_offset);
1991 BFD_ASSERT ((h->got.offset & 1) == 0);
1992 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1993 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1997 loc = srela->contents;
1998 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1999 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2000 ++srela->reloc_count;
2006 Elf_Internal_Rela rela;
2008 /* This symbols needs a copy reloc. Set it up. */
2009 BFD_ASSERT (h->dynindx != -1
2010 && (h->root.type == bfd_link_hash_defined
2011 || h->root.type == bfd_link_hash_defweak));
2013 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2015 BFD_ASSERT (s != NULL);
2017 rela.r_offset = (h->root.u.def.value
2018 + h->root.u.def.section->output_section->vma
2019 + h->root.u.def.section->output_offset);
2020 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
2023 loc += s->reloc_count * sizeof (Elf32_External_Rela);
2024 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2028 /* Mark some specially defined symbols as absolute. */
2029 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2030 || h == htab->root.hgot)
2031 sym->st_shndx = SHN_ABS;
2036 static enum elf_reloc_type_class
2037 or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
2038 const asection *rel_sec ATTRIBUTE_UNUSED,
2039 const Elf_Internal_Rela *rela)
2041 switch ((int) ELF32_R_TYPE (rela->r_info))
2043 case R_OR1K_RELATIVE: return reloc_class_relative;
2044 case R_OR1K_JMP_SLOT: return reloc_class_plt;
2045 case R_OR1K_COPY: return reloc_class_copy;
2046 default: return reloc_class_normal;
2050 /* Adjust a symbol defined by a dynamic object and referenced by a
2051 regular object. The current definition is in some section of the
2052 dynamic object, but we're not including those sections. We have to
2053 change the definition to something the rest of the link can
2057 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2058 struct elf_link_hash_entry *h)
2060 struct elf_or1k_link_hash_table *htab;
2061 struct elf_or1k_link_hash_entry *eh;
2062 struct elf_or1k_dyn_relocs *p;
2066 dynobj = elf_hash_table (info)->dynobj;
2068 /* Make sure we know what is going on here. */
2069 BFD_ASSERT (dynobj != NULL
2071 || h->u.weakdef != NULL
2074 && !h->def_regular)));
2076 /* If this is a function, put it in the procedure linkage table. We
2077 will fill in the contents of the procedure linkage table later,
2078 when we know the address of the .got section. */
2079 if (h->type == STT_FUNC
2082 if (! bfd_link_pic (info)
2085 && h->root.type != bfd_link_hash_undefweak
2086 && h->root.type != bfd_link_hash_undefined)
2088 /* This case can occur if we saw a PLT reloc in an input
2089 file, but the symbol was never referred to by a dynamic
2090 object. In such a case, we don't actually need to build
2091 a procedure linkage table, and we can just do a PCREL
2093 h->plt.offset = (bfd_vma) -1;
2100 h->plt.offset = (bfd_vma) -1;
2102 /* If this is a weak symbol, and there is a real definition, the
2103 processor independent code will have arranged for us to see the
2104 real definition first, and we can just use the same value. */
2105 if (h->u.weakdef != NULL)
2107 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2108 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2109 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2110 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2114 /* This is a reference to a symbol defined by a dynamic object which
2115 is not a function. */
2117 /* If we are creating a shared library, we must presume that the
2118 only references to the symbol are via the global offset table.
2119 For such cases we need not do anything here; the relocations will
2120 be handled correctly by relocate_section. */
2121 if (bfd_link_pic (info))
2124 /* If there are no references to this symbol that do not use the
2125 GOT, we don't need to generate a copy reloc. */
2126 if (!h->non_got_ref)
2129 /* If -z nocopyreloc was given, we won't generate them either. */
2130 if (info->nocopyreloc)
2136 eh = (struct elf_or1k_link_hash_entry *) h;
2137 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2139 s = p->sec->output_section;
2140 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
2144 /* If we didn't find any dynamic relocs in sections which needs the
2145 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2153 /* We must allocate the symbol in our .dynbss section, which will
2154 become part of the .bss section of the executable. There will be
2155 an entry for this symbol in the .dynsym section. The dynamic
2156 object will contain position independent code, so all references
2157 from the dynamic object to this symbol will go through the global
2158 offset table. The dynamic linker will use the .dynsym entry to
2159 determine the address it must put in the global offset table, so
2160 both the dynamic object and the regular object will refer to the
2161 same memory location for the variable. */
2163 htab = or1k_elf_hash_table (info);
2168 BFD_ASSERT (s != NULL);
2170 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2171 to copy the initial value out of the dynamic object and into the
2172 runtime process image. We need to remember the offset into the
2173 .rela.bss section we are going to use. */
2174 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2178 srel = htab->srelbss;
2179 BFD_ASSERT (srel != NULL);
2180 srel->size += sizeof (Elf32_External_Rela);
2184 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2187 /* Allocate space in .plt, .got and associated reloc sections for
2191 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2193 struct bfd_link_info *info;
2194 struct elf_or1k_link_hash_table *htab;
2195 struct elf_or1k_link_hash_entry *eh;
2196 struct elf_or1k_dyn_relocs *p;
2198 if (h->root.type == bfd_link_hash_indirect)
2201 info = (struct bfd_link_info *) inf;
2202 htab = or1k_elf_hash_table (info);
2206 eh = (struct elf_or1k_link_hash_entry *) h;
2208 if (htab->root.dynamic_sections_created
2209 && h->plt.refcount > 0)
2211 /* Make sure this symbol is output as a dynamic symbol.
2212 Undefined weak syms won't yet be marked as dynamic. */
2213 if (h->dynindx == -1
2214 && !h->forced_local)
2216 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2220 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2222 asection *s = htab->splt;
2224 /* If this is the first .plt entry, make room for the special
2227 s->size = PLT_ENTRY_SIZE;
2229 h->plt.offset = s->size;
2231 /* If this symbol is not defined in a regular file, and we are
2232 not generating a shared library, then set the symbol to this
2233 location in the .plt. This is required to make function
2234 pointers compare as equal between the normal executable and
2235 the shared library. */
2236 if (! bfd_link_pic (info)
2239 h->root.u.def.section = s;
2240 h->root.u.def.value = h->plt.offset;
2243 /* Make room for this entry. */
2244 s->size += PLT_ENTRY_SIZE;
2246 /* We also need to make an entry in the .got.plt section, which
2247 will be placed in the .got section by the linker script. */
2248 htab->sgotplt->size += 4;
2250 /* We also need to make an entry in the .rel.plt section. */
2251 htab->srelplt->size += sizeof (Elf32_External_Rela);
2255 h->plt.offset = (bfd_vma) -1;
2261 h->plt.offset = (bfd_vma) -1;
2265 if (h->got.refcount > 0)
2269 unsigned char tls_type;
2271 /* Make sure this symbol is output as a dynamic symbol.
2272 Undefined weak syms won't yet be marked as dynamic. */
2273 if (h->dynindx == -1
2274 && !h->forced_local)
2276 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2282 h->got.offset = s->size;
2284 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2286 /* TLS GD requires two GOT and two relocs. */
2287 if (tls_type == TLS_GD)
2291 dyn = htab->root.dynamic_sections_created;
2292 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2294 if (tls_type == TLS_GD)
2295 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2297 htab->srelgot->size += sizeof (Elf32_External_Rela);
2301 h->got.offset = (bfd_vma) -1;
2303 if (eh->dyn_relocs == NULL)
2306 /* In the shared -Bsymbolic case, discard space allocated for
2307 dynamic pc-relative relocs against symbols which turn out to be
2308 defined in regular objects. For the normal shared case, discard
2309 space for pc-relative relocs that have become local due to symbol
2310 visibility changes. */
2312 if (bfd_link_pic (info))
2314 if (SYMBOL_CALLS_LOCAL (info, h))
2316 struct elf_or1k_dyn_relocs **pp;
2318 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2320 p->count -= p->pc_count;
2329 /* Also discard relocs on undefined weak syms with non-default
2331 if (eh->dyn_relocs != NULL
2332 && h->root.type == bfd_link_hash_undefweak)
2334 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2335 eh->dyn_relocs = NULL;
2337 /* Make sure undefined weak symbols are output as a dynamic
2339 else if (h->dynindx == -1
2340 && !h->forced_local)
2342 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2349 /* For the non-shared case, discard space for relocs against
2350 symbols which turn out to need copy relocs or are not
2356 || (htab->root.dynamic_sections_created
2357 && (h->root.type == bfd_link_hash_undefweak
2358 || h->root.type == bfd_link_hash_undefined))))
2360 /* Make sure this symbol is output as a dynamic symbol.
2361 Undefined weak syms won't yet be marked as dynamic. */
2362 if (h->dynindx == -1
2363 && !h->forced_local)
2365 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2369 /* If that succeeded, we know we'll be keeping all the
2371 if (h->dynindx != -1)
2375 eh->dyn_relocs = NULL;
2380 /* Finally, allocate space. */
2381 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2383 asection *sreloc = elf_section_data (p->sec)->sreloc;
2384 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2390 /* Find any dynamic relocs that apply to read-only sections. */
2393 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2395 struct elf_or1k_link_hash_entry *eh;
2396 struct elf_or1k_dyn_relocs *p;
2398 eh = (struct elf_or1k_link_hash_entry *) h;
2399 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2401 asection *s = p->sec->output_section;
2403 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2405 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2407 info->flags |= DF_TEXTREL;
2409 /* Not an error, just cut short the traversal. */
2416 /* Set the sizes of the dynamic sections. */
2419 or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2420 struct bfd_link_info *info)
2422 struct elf_or1k_link_hash_table *htab;
2428 htab = or1k_elf_hash_table (info);
2432 dynobj = htab->root.dynobj;
2433 BFD_ASSERT (dynobj != NULL);
2435 if (htab->root.dynamic_sections_created)
2437 /* Set the contents of the .interp section to the interpreter. */
2438 if (bfd_link_executable (info) && !info->nointerp)
2440 s = bfd_get_section_by_name (dynobj, ".interp");
2441 BFD_ASSERT (s != NULL);
2442 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2443 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2447 /* Set up .got offsets for local syms, and space for local dynamic
2449 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2451 bfd_signed_vma *local_got;
2452 bfd_signed_vma *end_local_got;
2453 bfd_size_type locsymcount;
2454 Elf_Internal_Shdr *symtab_hdr;
2455 unsigned char *local_tls_type;
2458 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2461 for (s = ibfd->sections; s != NULL; s = s->next)
2463 struct elf_or1k_dyn_relocs *p;
2465 for (p = ((struct elf_or1k_dyn_relocs *)
2466 elf_section_data (s)->local_dynrel);
2470 if (! bfd_is_abs_section (p->sec)
2471 && bfd_is_abs_section (p->sec->output_section))
2473 /* Input section has been discarded, either because
2474 it is a copy of a linkonce section or due to
2475 linker script /DISCARD/, so we'll be discarding
2478 else if (p->count != 0)
2480 srel = elf_section_data (p->sec)->sreloc;
2481 srel->size += p->count * sizeof (Elf32_External_Rela);
2482 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2483 info->flags |= DF_TEXTREL;
2488 local_got = elf_local_got_refcounts (ibfd);
2492 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2493 locsymcount = symtab_hdr->sh_info;
2494 end_local_got = local_got + locsymcount;
2496 srel = htab->srelgot;
2497 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2498 for (; local_got < end_local_got; ++local_got)
2502 *local_got = s->size;
2504 /* TLS GD requires two GOT and two relocs. */
2505 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2509 if (bfd_link_pic (info))
2511 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2512 srel->size += 2 * sizeof (Elf32_External_Rela);
2514 srel->size += sizeof (Elf32_External_Rela);
2519 *local_got = (bfd_vma) -1;
2526 /* Allocate global sym .plt and .got entries, and space for global
2527 sym dynamic relocs. */
2528 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2530 /* We now have determined the sizes of the various dynamic sections.
2531 Allocate memory for them. */
2533 for (s = dynobj->sections; s != NULL; s = s->next)
2535 if ((s->flags & SEC_LINKER_CREATED) == 0)
2540 || s == htab->sgotplt
2541 || s == htab->sdynbss)
2543 /* Strip this section if we don't need it; see the
2546 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2548 if (s->size != 0 && s != htab->srelplt)
2551 /* We use the reloc_count field as a counter if we need
2552 to copy relocs into the output file. */
2556 /* It's not one of our sections, so don't allocate space. */
2561 /* If we don't need this section, strip it from the
2562 output file. This is mostly to handle .rela.bss and
2563 .rela.plt. We must create both sections in
2564 create_dynamic_sections, because they must be created
2565 before the linker maps input sections to output
2566 sections. The linker does that before
2567 adjust_dynamic_symbol is called, and it is that
2568 function which decides whether anything needs to go
2569 into these sections. */
2570 s->flags |= SEC_EXCLUDE;
2574 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2577 /* Allocate memory for the section contents. We use bfd_zalloc
2578 here in case unused entries are not reclaimed before the
2579 section's contents are written out. This should not happen,
2580 but this way if it does, we get a R_OR1K_NONE reloc instead
2582 s->contents = bfd_zalloc (dynobj, s->size);
2584 if (s->contents == NULL)
2588 if (htab->root.dynamic_sections_created)
2590 /* Add some entries to the .dynamic section. We fill in the
2591 values later, in or1k_elf_finish_dynamic_sections, but we
2592 must add the entries now so that we get the correct size for
2593 the .dynamic section. The DT_DEBUG entry is filled in by the
2594 dynamic linker and used by the debugger. */
2595 #define add_dynamic_entry(TAG, VAL) \
2596 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2598 if (bfd_link_executable (info))
2600 if (! add_dynamic_entry (DT_DEBUG, 0))
2604 if (htab->splt->size != 0)
2606 if (! add_dynamic_entry (DT_PLTGOT, 0)
2607 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2608 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2609 || ! add_dynamic_entry (DT_JMPREL, 0))
2615 if (! add_dynamic_entry (DT_RELA, 0)
2616 || ! add_dynamic_entry (DT_RELASZ, 0)
2617 || ! add_dynamic_entry (DT_RELAENT,
2618 sizeof (Elf32_External_Rela)))
2621 /* If any dynamic relocs apply to a read-only section,
2622 then we need a DT_TEXTREL entry. */
2623 if ((info->flags & DF_TEXTREL) == 0)
2624 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2627 if ((info->flags & DF_TEXTREL) != 0)
2629 if (! add_dynamic_entry (DT_TEXTREL, 0))
2635 #undef add_dynamic_entry
2639 /* Create dynamic sections when linking against a dynamic object. */
2642 or1k_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
2644 struct elf_or1k_link_hash_table *htab;
2646 htab = or1k_elf_hash_table (info);
2650 if (!htab->sgot && !create_got_section (dynobj, info))
2653 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
2656 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
2657 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
2658 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
2659 if (!bfd_link_pic (info))
2660 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
2662 if (!htab->splt || !htab->srelplt || !htab->sdynbss
2663 || (!bfd_link_pic (info) && !htab->srelbss))
2669 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2672 or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
2673 struct elf_link_hash_entry *dir,
2674 struct elf_link_hash_entry *ind)
2676 struct elf_or1k_link_hash_entry * edir;
2677 struct elf_or1k_link_hash_entry * eind;
2679 edir = (struct elf_or1k_link_hash_entry *) dir;
2680 eind = (struct elf_or1k_link_hash_entry *) ind;
2682 if (eind->dyn_relocs != NULL)
2684 if (edir->dyn_relocs != NULL)
2686 struct elf_or1k_dyn_relocs **pp;
2687 struct elf_or1k_dyn_relocs *p;
2689 /* Add reloc counts against the indirect sym to the direct sym
2690 list. Merge any entries against the same section. */
2691 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2693 struct elf_or1k_dyn_relocs *q;
2695 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2696 if (q->sec == p->sec)
2698 q->pc_count += p->pc_count;
2699 q->count += p->count;
2706 *pp = edir->dyn_relocs;
2709 edir->dyn_relocs = eind->dyn_relocs;
2710 eind->dyn_relocs = NULL;
2713 if (ind->root.type == bfd_link_hash_indirect)
2715 if (dir->got.refcount <= 0)
2717 edir->tls_type = eind->tls_type;
2718 eind->tls_type = TLS_UNKNOWN;
2722 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2725 /* Set the right machine number. */
2728 or1k_elf_object_p (bfd *abfd)
2730 unsigned long mach = bfd_mach_or1k;
2732 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2733 mach = bfd_mach_or1knd;
2735 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2738 /* Store the machine number in the flags field. */
2741 or1k_elf_final_write_processing (bfd *abfd,
2742 bfd_boolean linker ATTRIBUTE_UNUSED)
2744 switch (bfd_get_mach (abfd))
2749 case bfd_mach_or1knd:
2750 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2756 or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2758 BFD_ASSERT (!elf_flags_init (abfd)
2759 || elf_elfheader (abfd)->e_flags == flags);
2761 elf_elfheader (abfd)->e_flags = flags;
2762 elf_flags_init (abfd) = TRUE;
2766 /* Make sure all input files are consistent with respect to
2767 EF_OR1K_NODELAY flag setting. */
2770 elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2772 bfd *obfd = info->output_bfd;
2776 in_flags = elf_elfheader (ibfd)->e_flags;
2777 out_flags = elf_elfheader (obfd)->e_flags;
2779 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2780 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2783 if (!elf_flags_init (obfd))
2785 elf_flags_init (obfd) = TRUE;
2786 elf_elfheader (obfd)->e_flags = in_flags;
2791 if (in_flags == out_flags)
2794 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2797 (_("%B: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
2799 bfd_set_error (bfd_error_bad_value);
2807 #define ELF_ARCH bfd_arch_or1k
2808 #define ELF_MACHINE_CODE EM_OR1K
2809 #define ELF_TARGET_ID OR1K_ELF_DATA
2810 #define ELF_MAXPAGESIZE 0x2000
2812 #define TARGET_BIG_SYM or1k_elf32_vec
2813 #define TARGET_BIG_NAME "elf32-or1k"
2815 #define elf_info_to_howto_rel NULL
2816 #define elf_info_to_howto or1k_info_to_howto_rela
2817 #define elf_backend_relocate_section or1k_elf_relocate_section
2818 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
2819 #define elf_backend_gc_sweep_hook or1k_elf_gc_sweep_hook
2820 #define elf_backend_check_relocs or1k_elf_check_relocs
2821 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2822 #define elf_backend_can_gc_sections 1
2823 #define elf_backend_rela_normal 1
2825 #define bfd_elf32_mkobject elf_or1k_mkobject
2827 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2828 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2829 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2830 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2832 #define elf_backend_object_p or1k_elf_object_p
2833 #define elf_backend_final_write_processing or1k_elf_final_write_processing
2834 #define elf_backend_can_refcount 1
2836 #define elf_backend_plt_readonly 1
2837 #define elf_backend_want_got_plt 1
2838 #define elf_backend_want_plt_sym 0
2839 #define elf_backend_got_header_size 12
2840 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2841 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
2842 #define elf_backend_create_dynamic_sections or1k_elf_create_dynamic_sections
2843 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2844 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2845 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2846 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
2848 #include "elf32-target.h"