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 _bfd_error_handler (_("%B: invalid OR1K reloc number: %d"), abfd, r_type);
746 cache_ptr->howto = & or1k_elf_howto_table[r_type];
750 /* Return the relocation value for @tpoff relocations.. */
752 tpoff (struct bfd_link_info *info, bfd_vma address)
754 /* If tls_sec is NULL, we should have signalled an error already. */
755 if (elf_hash_table (info)->tls_sec == NULL)
758 /* The thread pointer on or1k stores the address after the TCB where
759 the data is, just compute the difference. No need to compensate
760 for the size of TCB. */
761 return (address - elf_hash_table (info)->tls_sec->vma);
764 /* Relocate an Or1k ELF section.
766 The RELOCATE_SECTION function is called by the new ELF backend linker
767 to handle the relocations for a section.
769 The relocs are always passed as Rela structures; if the section
770 actually uses Rel structures, the r_addend field will always be
773 This function is responsible for adjusting the section contents as
774 necessary, and (if using Rela relocs and generating a relocatable
775 output file) adjusting the reloc addend as necessary.
777 This function does not have to worry about setting the reloc
778 address or the reloc symbol index.
780 LOCAL_SYMS is a pointer to the swapped in local symbols.
782 LOCAL_SECTIONS is an array giving the section in the input file
783 corresponding to the st_shndx field of each local symbol.
785 The global hash table entry for the global symbols can be found
786 via elf_sym_hashes (input_bfd).
788 When generating relocatable output, this function must handle
789 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
790 going to be the section symbol corresponding to the output
791 section, which means that the addend must be adjusted
795 or1k_elf_relocate_section (bfd *output_bfd,
796 struct bfd_link_info *info,
798 asection *input_section,
800 Elf_Internal_Rela *relocs,
801 Elf_Internal_Sym *local_syms,
802 asection **local_sections)
804 Elf_Internal_Shdr *symtab_hdr;
805 struct elf_link_hash_entry **sym_hashes;
806 Elf_Internal_Rela *rel;
807 Elf_Internal_Rela *relend;
808 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
811 bfd_vma *local_got_offsets;
817 dynobj = htab->root.dynobj;
818 local_got_offsets = elf_local_got_offsets (input_bfd);
820 sreloc = elf_section_data (input_section)->sreloc;
824 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
825 sym_hashes = elf_sym_hashes (input_bfd);
826 relend = relocs + input_section->reloc_count;
828 for (rel = relocs; rel < relend; rel++)
830 reloc_howto_type *howto;
831 unsigned long r_symndx;
832 Elf_Internal_Sym *sym;
834 struct elf_link_hash_entry *h;
836 bfd_reloc_status_type r;
837 const char *name = NULL;
840 r_type = ELF32_R_TYPE (rel->r_info);
841 r_symndx = ELF32_R_SYM (rel->r_info);
843 if (r_type == R_OR1K_GNU_VTINHERIT
844 || r_type == R_OR1K_GNU_VTENTRY)
847 if (r_type < 0 || r_type >= (int) R_OR1K_max)
849 bfd_set_error (bfd_error_bad_value);
853 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
858 if (r_symndx < symtab_hdr->sh_info)
860 sym = local_syms + r_symndx;
861 sec = local_sections[r_symndx];
862 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
864 name = bfd_elf_string_from_elf_section
865 (input_bfd, symtab_hdr->sh_link, sym->st_name);
866 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
870 bfd_boolean unresolved_reloc, warned, ignored;
872 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
873 r_symndx, symtab_hdr, sym_hashes,
875 unresolved_reloc, warned, ignored);
878 if (sec != NULL && discarded_section (sec))
879 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
880 rel, 1, relend, howto, 0, contents);
882 if (bfd_link_relocatable (info))
889 if (htab->splt != NULL && h != NULL
890 && h->plt.offset != (bfd_vma) -1)
892 relocation = (htab->splt->output_section->vma
893 + htab->splt->output_offset
900 /* Relocation is to the entry for this symbol in the global
902 BFD_ASSERT (sgot != NULL);
909 BFD_ASSERT (off != (bfd_vma) -1);
911 dyn = htab->root.dynamic_sections_created;
912 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
915 || (bfd_link_pic (info)
916 && SYMBOL_REFERENCES_LOCAL (info, h)))
918 /* This is actually a static link, or it is a
919 -Bsymbolic link and the symbol is defined
920 locally, or the symbol was forced to be local
921 because of a version file. We must initialize
922 this entry in the global offset table. Since the
923 offset must always be a multiple of 4, we use the
924 least significant bit to record whether we have
925 initialized it already.
927 When doing a dynamic link, we create a .rela.got
928 relocation entry to initialize the value. This
929 is done in the finish_dynamic_symbol routine. */
934 /* Write entry in GOT. */
935 bfd_put_32 (output_bfd, relocation,
936 sgot->contents + off);
937 /* Mark GOT entry as having been written. */
942 relocation = sgot->output_offset + off;
949 BFD_ASSERT (local_got_offsets != NULL
950 && local_got_offsets[r_symndx] != (bfd_vma) -1);
952 /* Get offset into GOT table. */
953 off = local_got_offsets[r_symndx];
955 /* The offset must always be a multiple of 4. We use
956 the least significant bit to record whether we have
957 already processed this entry. */
962 /* Write entry in GOT. */
963 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
964 if (bfd_link_pic (info))
967 Elf_Internal_Rela outrel;
969 /* We need to generate a R_OR1K_RELATIVE reloc
970 for the dynamic linker. */
971 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
972 BFD_ASSERT (srelgot != NULL);
974 outrel.r_offset = (sgot->output_section->vma
975 + sgot->output_offset
977 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
978 outrel.r_addend = relocation;
979 loc = srelgot->contents;
980 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
981 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
982 ++srelgot->reloc_count;
985 local_got_offsets[r_symndx] |= 1;
987 relocation = sgot->output_offset + off;
990 /* Addend should be zero. */
991 if (rel->r_addend != 0)
992 (*_bfd_error_handler)
993 (_("internal error: addend should be zero for R_OR1K_GOT16"));
997 case R_OR1K_GOTOFF_LO16:
998 case R_OR1K_GOTOFF_HI16:
999 /* Relocation is offset from GOT. */
1000 BFD_ASSERT (sgot != NULL);
1001 relocation -= sgot->output_section->vma;
1004 case R_OR1K_INSN_REL_26:
1005 case R_OR1K_HI_16_IN_INSN:
1006 case R_OR1K_LO_16_IN_INSN:
1010 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
1011 from removed linkonce sections, or sections discarded by
1013 if (r_symndx == STN_UNDEF
1014 || (input_section->flags & SEC_ALLOC) == 0)
1017 if ((bfd_link_pic (info)
1019 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1020 || h->root.type != bfd_link_hash_undefweak)
1021 && (howto->type != R_OR1K_INSN_REL_26
1022 || !SYMBOL_CALLS_LOCAL (info, h)))
1023 || (!bfd_link_pic (info)
1029 || h->root.type == bfd_link_hash_undefweak
1030 || h->root.type == bfd_link_hash_undefined)))
1032 Elf_Internal_Rela outrel;
1036 /* When generating a shared object, these relocations
1037 are copied into the output file to be resolved at run
1040 BFD_ASSERT (sreloc != NULL);
1045 _bfd_elf_section_offset (output_bfd, info, input_section,
1047 if (outrel.r_offset == (bfd_vma) -1)
1049 else if (outrel.r_offset == (bfd_vma) -2)
1051 outrel.r_offset += (input_section->output_section->vma
1052 + input_section->output_offset);
1055 memset (&outrel, 0, sizeof outrel);
1056 /* h->dynindx may be -1 if the symbol was marked to
1059 && ((! info->symbolic && h->dynindx != -1)
1060 || !h->def_regular))
1062 BFD_ASSERT (h->dynindx != -1);
1063 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1064 outrel.r_addend = rel->r_addend;
1068 if (r_type == R_OR1K_32)
1070 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1071 outrel.r_addend = relocation + rel->r_addend;
1076 (*_bfd_error_handler)
1077 (_("%B: probably compiled without -fPIC?"),
1079 bfd_set_error (bfd_error_bad_value);
1084 loc = sreloc->contents;
1085 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1086 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1092 case R_OR1K_TLS_LDM_HI16:
1093 case R_OR1K_TLS_LDM_LO16:
1094 case R_OR1K_TLS_LDO_HI16:
1095 case R_OR1K_TLS_LDO_LO16:
1096 /* TODO: implement support for local dynamic. */
1098 (*_bfd_error_handler)
1099 (_("%B: support for local dynamic not implemented"),
1101 bfd_set_error (bfd_error_bad_value);
1105 case R_OR1K_TLS_GD_HI16:
1106 case R_OR1K_TLS_GD_LO16:
1107 case R_OR1K_TLS_IE_HI16:
1108 case R_OR1K_TLS_IE_LO16:
1111 Elf_Internal_Rela rela;
1115 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1117 /* Mark as TLS related GOT entry by setting
1118 bit 2 as well as bit 1. */
1121 gotoff = h->got.offset;
1126 gotoff = local_got_offsets[r_symndx];
1127 local_got_offsets[r_symndx] |= 3;
1130 /* Only process the relocation once. */
1133 relocation = sgot->output_offset + (gotoff & ~3);
1137 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1138 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1140 /* Dynamic entries will require relocations. if we do not need
1141 them we will just use the default R_OR1K_NONE and
1142 not set anything. */
1143 dynamic = bfd_link_pic (info)
1144 || (sec && (sec->flags & SEC_ALLOC) != 0
1146 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1149 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
1150 || howto->type == R_OR1K_TLS_GD_LO16))
1154 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1155 for (i = 0; i < 2; ++i)
1157 rela.r_offset = sgot->output_section->vma +
1158 sgot->output_offset + gotoff + i*4;
1159 if (h != NULL && h->dynindx != -1)
1161 rela.r_info = ELF32_R_INFO (h->dynindx,
1162 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1167 rela.r_info = ELF32_R_INFO (0,
1168 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1169 rela.r_addend = tpoff (info, relocation);
1172 loc = sreloc->contents;
1173 loc += sreloc->reloc_count++ *
1174 sizeof (Elf32_External_Rela);
1176 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1177 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1181 else if (howto->type == R_OR1K_TLS_GD_HI16
1182 || howto->type == R_OR1K_TLS_GD_LO16)
1184 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1185 bfd_put_32 (output_bfd, tpoff (info, relocation),
1186 sgot->contents + gotoff + 4);
1191 /* Add TPOFF GOT and rela entries. */
1192 rela.r_offset = sgot->output_section->vma +
1193 sgot->output_offset + gotoff;
1194 if (h != NULL && h->dynindx != -1)
1196 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1201 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1202 rela.r_addend = tpoff (info, relocation);
1205 loc = sreloc->contents;
1206 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1208 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1209 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1214 bfd_put_32 (output_bfd, tpoff (info, relocation),
1215 sgot->contents + gotoff);
1217 relocation = sgot->output_offset + gotoff;
1220 case R_OR1K_TLS_LE_HI16:
1221 case R_OR1K_TLS_LE_LO16:
1223 /* Relocation is offset from TP. */
1224 relocation = tpoff (info, relocation);
1227 case R_OR1K_TLS_DTPMOD:
1228 case R_OR1K_TLS_DTPOFF:
1229 case R_OR1K_TLS_TPOFF:
1230 /* These are resolved dynamically on load and shouldn't
1231 be used as linker input. */
1233 (*_bfd_error_handler)
1234 (_("%B: will not resolve runtime TLS relocation"),
1236 bfd_set_error (bfd_error_bad_value);
1242 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1243 rel->r_offset, relocation, rel->r_addend);
1245 if (r != bfd_reloc_ok)
1247 const char *msg = NULL;
1251 case bfd_reloc_overflow:
1252 (*info->callbacks->reloc_overflow)
1253 (info, (h ? &h->root : NULL), name, howto->name,
1254 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1257 case bfd_reloc_undefined:
1258 (*info->callbacks->undefined_symbol)
1259 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1262 case bfd_reloc_outofrange:
1263 msg = _("internal error: out of range error");
1266 case bfd_reloc_notsupported:
1267 msg = _("internal error: unsupported relocation error");
1270 case bfd_reloc_dangerous:
1271 msg = _("internal error: dangerous relocation");
1275 msg = _("internal error: unknown error");
1280 (*info->callbacks->warning) (info, msg, name, input_bfd,
1281 input_section, rel->r_offset);
1288 /* Return the section that should be marked against GC for a given
1292 or1k_elf_gc_mark_hook (asection *sec,
1293 struct bfd_link_info *info,
1294 Elf_Internal_Rela *rel,
1295 struct elf_link_hash_entry *h,
1296 Elf_Internal_Sym *sym)
1299 switch (ELF32_R_TYPE (rel->r_info))
1301 case R_OR1K_GNU_VTINHERIT:
1302 case R_OR1K_GNU_VTENTRY:
1306 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1310 or1k_elf_gc_sweep_hook (bfd *abfd,
1311 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1313 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
1315 /* Update the got entry reference counts for the section being removed. */
1316 Elf_Internal_Shdr *symtab_hdr;
1317 struct elf_link_hash_entry **sym_hashes;
1318 bfd_signed_vma *local_got_refcounts;
1319 const Elf_Internal_Rela *rel, *relend;
1321 elf_section_data (sec)->local_dynrel = NULL;
1323 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1324 sym_hashes = elf_sym_hashes (abfd);
1325 local_got_refcounts = elf_local_got_refcounts (abfd);
1327 relend = relocs + sec->reloc_count;
1328 for (rel = relocs; rel < relend; rel++)
1330 unsigned long r_symndx;
1331 struct elf_link_hash_entry *h = NULL;
1333 r_symndx = ELF32_R_SYM (rel->r_info);
1334 if (r_symndx >= symtab_hdr->sh_info)
1336 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1337 while (h->root.type == bfd_link_hash_indirect
1338 || h->root.type == bfd_link_hash_warning)
1339 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1342 switch (ELF32_R_TYPE (rel->r_info))
1347 if (h->got.refcount > 0)
1352 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
1353 local_got_refcounts[r_symndx]--;
1364 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1365 shortcuts to them in our hash table. */
1368 create_got_section (bfd *dynobj, struct bfd_link_info *info)
1370 struct elf_or1k_link_hash_table *htab;
1373 /* This function may be called more than once. */
1374 s = bfd_get_section_by_name (dynobj, ".got");
1375 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
1378 htab = or1k_elf_hash_table (info);
1382 if (! _bfd_elf_create_got_section (dynobj, info))
1385 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1386 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1387 htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1389 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1392 if (! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC
1396 | SEC_LINKER_CREATED
1398 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
1404 /* Look through the relocs for a section during the first phase. */
1407 or1k_elf_check_relocs (bfd *abfd,
1408 struct bfd_link_info *info,
1410 const Elf_Internal_Rela *relocs)
1412 Elf_Internal_Shdr *symtab_hdr;
1413 struct elf_link_hash_entry **sym_hashes;
1414 const Elf_Internal_Rela *rel;
1416 const Elf_Internal_Rela *rel_end;
1417 struct elf_or1k_link_hash_table *htab;
1419 asection *sreloc = NULL;
1421 if (bfd_link_relocatable (info))
1424 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1425 sym_hashes = elf_sym_hashes (abfd);
1427 htab = or1k_elf_hash_table (info);
1431 dynobj = htab->root.dynobj;
1433 rel_end = relocs + sec->reloc_count;
1434 for (rel = relocs; rel < rel_end; rel++)
1436 struct elf_link_hash_entry *h;
1437 unsigned long r_symndx;
1438 unsigned char tls_type;
1440 r_symndx = ELF32_R_SYM (rel->r_info);
1441 if (r_symndx < symtab_hdr->sh_info)
1445 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1446 while (h->root.type == bfd_link_hash_indirect
1447 || h->root.type == bfd_link_hash_warning)
1448 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1450 /* PR15323, ref flags aren't set for references in the same
1452 h->root.non_ir_ref = 1;
1455 switch (ELF32_R_TYPE (rel->r_info))
1457 case R_OR1K_TLS_GD_HI16:
1458 case R_OR1K_TLS_GD_LO16:
1461 case R_OR1K_TLS_LDM_HI16:
1462 case R_OR1K_TLS_LDM_LO16:
1463 case R_OR1K_TLS_LDO_HI16:
1464 case R_OR1K_TLS_LDO_LO16:
1467 case R_OR1K_TLS_IE_HI16:
1468 case R_OR1K_TLS_IE_LO16:
1471 case R_OR1K_TLS_LE_HI16:
1472 case R_OR1K_TLS_LE_LO16:
1476 tls_type = TLS_NONE;
1479 /* Record TLS type. */
1481 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
1484 unsigned char *local_tls_type;
1486 /* This is a TLS type record for a local symbol. */
1487 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1488 if (local_tls_type == NULL)
1492 size = symtab_hdr->sh_info;
1493 local_tls_type = bfd_zalloc (abfd, size);
1494 if (local_tls_type == NULL)
1496 elf_or1k_local_tls_type (abfd) = local_tls_type;
1498 local_tls_type[r_symndx] = tls_type;
1501 switch (ELF32_R_TYPE (rel->r_info))
1503 /* This relocation describes the C++ object vtable hierarchy.
1504 Reconstruct it for later use during GC. */
1505 case R_OR1K_GNU_VTINHERIT:
1506 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1510 /* This relocation describes which C++ vtable entries are actually
1511 used. Record for later use during GC. */
1512 case R_OR1K_GNU_VTENTRY:
1513 BFD_ASSERT (h != NULL);
1515 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1519 /* This relocation requires .plt entry. */
1524 h->plt.refcount += 1;
1529 case R_OR1K_GOTOFF_HI16:
1530 case R_OR1K_GOTOFF_LO16:
1531 case R_OR1K_TLS_GD_HI16:
1532 case R_OR1K_TLS_GD_LO16:
1533 case R_OR1K_TLS_IE_HI16:
1534 case R_OR1K_TLS_IE_LO16:
1535 if (htab->sgot == NULL)
1538 htab->root.dynobj = dynobj = abfd;
1539 if (! create_got_section (dynobj, info))
1543 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1544 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1547 h->got.refcount += 1;
1550 bfd_signed_vma *local_got_refcounts;
1552 /* This is a global offset table entry for a local symbol. */
1553 local_got_refcounts = elf_local_got_refcounts (abfd);
1554 if (local_got_refcounts == NULL)
1558 size = symtab_hdr->sh_info;
1559 size *= sizeof (bfd_signed_vma);
1560 local_got_refcounts = bfd_zalloc (abfd, size);
1561 if (local_got_refcounts == NULL)
1563 elf_local_got_refcounts (abfd) = local_got_refcounts;
1565 local_got_refcounts[r_symndx] += 1;
1570 case R_OR1K_INSN_REL_26:
1571 case R_OR1K_HI_16_IN_INSN:
1572 case R_OR1K_LO_16_IN_INSN:
1576 if (h != NULL && !bfd_link_pic (info))
1578 /* We may need a copy reloc. */
1581 /* We may also need a .plt entry. */
1582 h->plt.refcount += 1;
1583 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1584 h->pointer_equality_needed = 1;
1587 /* If we are creating a shared library, and this is a reloc
1588 against a global symbol, or a non PC relative reloc
1589 against a local symbol, then we need to copy the reloc
1590 into the shared library. However, if we are linking with
1591 -Bsymbolic, we do not need to copy a reloc against a
1592 global symbol which is defined in an object we are
1593 including in the link (i.e., DEF_REGULAR is set). At
1594 this point we have not seen all the input files, so it is
1595 possible that DEF_REGULAR is not set now but will be set
1596 later (it is never cleared). In case of a weak definition,
1597 DEF_REGULAR may be cleared later by a strong definition in
1598 a shared library. We account for that possibility below by
1599 storing information in the relocs_copied field of the hash
1600 table entry. A similar situation occurs when creating
1601 shared libraries and symbol visibility changes render the
1604 If on the other hand, we are creating an executable, we
1605 may need to keep relocations for symbols satisfied by a
1606 dynamic library if we manage to avoid copy relocs for the
1609 if ((bfd_link_pic (info)
1610 && (sec->flags & SEC_ALLOC) != 0
1611 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1613 && (!SYMBOLIC_BIND (info, h)
1614 || h->root.type == bfd_link_hash_defweak
1615 || !h->def_regular))))
1616 || (!bfd_link_pic (info)
1617 && (sec->flags & SEC_ALLOC) != 0
1619 && (h->root.type == bfd_link_hash_defweak
1620 || !h->def_regular)))
1622 struct elf_or1k_dyn_relocs *p;
1623 struct elf_or1k_dyn_relocs **head;
1625 /* When creating a shared object, we must copy these
1626 relocs into the output file. We create a reloc
1627 section in dynobj and make room for the reloc. */
1631 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1632 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1634 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1638 if (strncmp (name, ".rela", 5) != 0
1639 || strcmp (bfd_get_section_name (abfd, sec),
1642 (*_bfd_error_handler)
1643 (_("%B: bad relocation section name `%s\'"),
1647 if (htab->root.dynobj == NULL)
1648 htab->root.dynobj = abfd;
1649 dynobj = htab->root.dynobj;
1651 sreloc = bfd_get_section_by_name (dynobj, name);
1654 sreloc = _bfd_elf_make_dynamic_reloc_section
1655 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1660 elf_section_data (sec)->sreloc = sreloc;
1663 /* If this is a global symbol, we count the number of
1664 relocations we need for this symbol. */
1666 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1669 /* Track dynamic relocs needed for local syms too.
1670 We really need local syms available to do this
1674 Elf_Internal_Sym *isym;
1677 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1682 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1686 vpp = &elf_section_data (s)->local_dynrel;
1687 head = (struct elf_or1k_dyn_relocs **) vpp;
1691 if (p == NULL || p->sec != sec)
1693 bfd_size_type amt = sizeof *p;
1694 p = ((struct elf_or1k_dyn_relocs *)
1695 bfd_alloc (htab->root.dynobj, amt));
1706 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1717 /* Finish up the dynamic sections. */
1720 or1k_elf_finish_dynamic_sections (bfd *output_bfd,
1721 struct bfd_link_info *info)
1724 asection *sdyn, *sgot;
1725 struct elf_or1k_link_hash_table *htab;
1727 htab = or1k_elf_hash_table (info);
1731 dynobj = htab->root.dynobj;
1733 sgot = htab->sgotplt;
1734 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1736 if (htab->root.dynamic_sections_created)
1739 Elf32_External_Dyn *dyncon, *dynconend;
1741 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1743 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1744 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1746 for (; dyncon < dynconend; dyncon++)
1748 Elf_Internal_Dyn dyn;
1751 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1760 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1765 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1770 dyn.d_un.d_val = s->size;
1774 /* My reading of the SVR4 ABI indicates that the
1775 procedure linkage table relocs (DT_JMPREL) should be
1776 included in the overall relocs (DT_RELA). This is
1777 what Solaris does. However, UnixWare can not handle
1778 that case. Therefore, we override the DT_RELASZ entry
1779 here to make it not include the JMPREL relocs. Since
1780 the linker script arranges for .rela.plt to follow all
1781 other relocation sections, we don't have to worry
1782 about changing the DT_RELA entry. */
1783 if (htab->srelplt != NULL)
1786 dyn.d_un.d_val -= s->size;
1790 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1794 /* Fill in the first entry in the procedure linkage table. */
1796 if (splt && splt->size > 0)
1798 if (bfd_link_pic (info))
1800 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1802 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1803 splt->contents + 4);
1804 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1805 splt->contents + 8);
1806 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1807 splt->contents + 12);
1808 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1809 splt->contents + 16);
1814 /* addr = .got + 4 */
1815 addr = sgot->output_section->vma + sgot->output_offset + 4;
1816 bfd_put_32 (output_bfd,
1817 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1819 bfd_put_32 (output_bfd,
1820 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1821 splt->contents + 4);
1822 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1823 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1824 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1827 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1831 /* Set the first entry in the global offset table to the address of
1832 the dynamic section. */
1833 if (sgot && sgot->size > 0)
1836 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1838 bfd_put_32 (output_bfd,
1839 sdyn->output_section->vma + sdyn->output_offset,
1841 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1844 if (htab->sgot && htab->sgot->size > 0)
1845 elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4;
1850 /* Finish up dynamic symbol handling. We set the contents of various
1851 dynamic sections here. */
1854 or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
1855 struct bfd_link_info *info,
1856 struct elf_link_hash_entry *h,
1857 Elf_Internal_Sym *sym)
1859 struct elf_or1k_link_hash_table *htab;
1862 htab = or1k_elf_hash_table (info);
1866 if (h->plt.offset != (bfd_vma) -1)
1875 Elf_Internal_Rela rela;
1877 /* This symbol has an entry in the procedure linkage table. Set
1879 BFD_ASSERT (h->dynindx != -1);
1882 sgot = htab->sgotplt;
1883 srela = htab->srelplt;
1884 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1886 /* Get the index in the procedure linkage table which
1887 corresponds to this symbol. This is the index of this symbol
1888 in all the symbols for which we are making plt entries. The
1889 first entry in the procedure linkage table is reserved. */
1890 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1892 /* Get the offset into the .got table of the entry that
1893 corresponds to this function. Each .got entry is 4 bytes.
1894 The first three are reserved. */
1895 got_offset = (plt_index + 3) * 4;
1896 got_addr = got_offset;
1898 /* Fill in the entry in the procedure linkage table. */
1899 if (! bfd_link_pic (info))
1901 got_addr += htab->sgotplt->output_section->vma
1902 + htab->sgotplt->output_offset;
1903 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1904 splt->contents + h->plt.offset);
1905 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1906 splt->contents + h->plt.offset + 4);
1907 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1908 splt->contents + h->plt.offset + 8);
1909 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1910 splt->contents + h->plt.offset + 12);
1911 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1912 | plt_index * sizeof (Elf32_External_Rela),
1913 splt->contents + h->plt.offset + 16);
1917 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1918 splt->contents + h->plt.offset);
1919 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1920 | plt_index * sizeof (Elf32_External_Rela),
1921 splt->contents + h->plt.offset + 4);
1922 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1923 splt->contents + h->plt.offset + 8);
1924 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1925 splt->contents + h->plt.offset + 12);
1926 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1927 splt->contents + h->plt.offset + 16);
1930 /* Fill in the entry in the global offset table. */
1931 bfd_put_32 (output_bfd,
1932 (splt->output_section->vma
1933 + splt->output_offset), /* Same offset. */
1934 sgot->contents + got_offset);
1936 /* Fill in the entry in the .rela.plt section. */
1937 rela.r_offset = (sgot->output_section->vma
1938 + sgot->output_offset
1940 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1942 loc = srela->contents;
1943 loc += plt_index * sizeof (Elf32_External_Rela);
1944 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1946 if (!h->def_regular)
1948 /* Mark the symbol as undefined, rather than as defined in
1949 the .plt section. Leave the value alone. */
1950 sym->st_shndx = SHN_UNDEF;
1955 if (h->got.offset != (bfd_vma) -1
1956 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1960 Elf_Internal_Rela rela;
1962 /* This symbol has an entry in the global offset table. Set it
1965 srela = htab->srelgot;
1966 BFD_ASSERT (sgot != NULL && srela != NULL);
1968 rela.r_offset = (sgot->output_section->vma
1969 + sgot->output_offset
1970 + (h->got.offset &~ 1));
1972 /* If this is a -Bsymbolic link, and the symbol is defined
1973 locally, we just want to emit a RELATIVE reloc. Likewise if
1974 the symbol was forced to be local because of a version file.
1975 The entry in the global offset table will already have been
1976 initialized in the relocate_section function. */
1977 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
1979 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1980 rela.r_addend = (h->root.u.def.value
1981 + h->root.u.def.section->output_section->vma
1982 + h->root.u.def.section->output_offset);
1986 BFD_ASSERT ((h->got.offset & 1) == 0);
1987 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1988 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1992 loc = srela->contents;
1993 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1994 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1995 ++srela->reloc_count;
2001 Elf_Internal_Rela rela;
2003 /* This symbols needs a copy reloc. Set it up. */
2004 BFD_ASSERT (h->dynindx != -1
2005 && (h->root.type == bfd_link_hash_defined
2006 || h->root.type == bfd_link_hash_defweak));
2008 s = bfd_get_section_by_name (h->root.u.def.section->owner,
2010 BFD_ASSERT (s != NULL);
2012 rela.r_offset = (h->root.u.def.value
2013 + h->root.u.def.section->output_section->vma
2014 + h->root.u.def.section->output_offset);
2015 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
2018 loc += s->reloc_count * sizeof (Elf32_External_Rela);
2019 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2023 /* Mark some specially defined symbols as absolute. */
2024 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2025 || h == htab->root.hgot)
2026 sym->st_shndx = SHN_ABS;
2031 static enum elf_reloc_type_class
2032 or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
2033 const asection *rel_sec ATTRIBUTE_UNUSED,
2034 const Elf_Internal_Rela *rela)
2036 switch ((int) ELF32_R_TYPE (rela->r_info))
2038 case R_OR1K_RELATIVE: return reloc_class_relative;
2039 case R_OR1K_JMP_SLOT: return reloc_class_plt;
2040 case R_OR1K_COPY: return reloc_class_copy;
2041 default: return reloc_class_normal;
2045 /* Adjust a symbol defined by a dynamic object and referenced by a
2046 regular object. The current definition is in some section of the
2047 dynamic object, but we're not including those sections. We have to
2048 change the definition to something the rest of the link can
2052 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2053 struct elf_link_hash_entry *h)
2055 struct elf_or1k_link_hash_table *htab;
2056 struct elf_or1k_link_hash_entry *eh;
2057 struct elf_or1k_dyn_relocs *p;
2061 dynobj = elf_hash_table (info)->dynobj;
2063 /* Make sure we know what is going on here. */
2064 BFD_ASSERT (dynobj != NULL
2066 || h->u.weakdef != NULL
2069 && !h->def_regular)));
2071 /* If this is a function, put it in the procedure linkage table. We
2072 will fill in the contents of the procedure linkage table later,
2073 when we know the address of the .got section. */
2074 if (h->type == STT_FUNC
2077 if (! bfd_link_pic (info)
2080 && h->root.type != bfd_link_hash_undefweak
2081 && h->root.type != bfd_link_hash_undefined)
2083 /* This case can occur if we saw a PLT reloc in an input
2084 file, but the symbol was never referred to by a dynamic
2085 object. In such a case, we don't actually need to build
2086 a procedure linkage table, and we can just do a PCREL
2088 h->plt.offset = (bfd_vma) -1;
2095 h->plt.offset = (bfd_vma) -1;
2097 /* If this is a weak symbol, and there is a real definition, the
2098 processor independent code will have arranged for us to see the
2099 real definition first, and we can just use the same value. */
2100 if (h->u.weakdef != NULL)
2102 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2103 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2104 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2105 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2109 /* This is a reference to a symbol defined by a dynamic object which
2110 is not a function. */
2112 /* If we are creating a shared library, we must presume that the
2113 only references to the symbol are via the global offset table.
2114 For such cases we need not do anything here; the relocations will
2115 be handled correctly by relocate_section. */
2116 if (bfd_link_pic (info))
2119 /* If there are no references to this symbol that do not use the
2120 GOT, we don't need to generate a copy reloc. */
2121 if (!h->non_got_ref)
2124 /* If -z nocopyreloc was given, we won't generate them either. */
2125 if (info->nocopyreloc)
2131 eh = (struct elf_or1k_link_hash_entry *) h;
2132 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2134 s = p->sec->output_section;
2135 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
2139 /* If we didn't find any dynamic relocs in sections which needs the
2140 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2148 /* We must allocate the symbol in our .dynbss section, which will
2149 become part of the .bss section of the executable. There will be
2150 an entry for this symbol in the .dynsym section. The dynamic
2151 object will contain position independent code, so all references
2152 from the dynamic object to this symbol will go through the global
2153 offset table. The dynamic linker will use the .dynsym entry to
2154 determine the address it must put in the global offset table, so
2155 both the dynamic object and the regular object will refer to the
2156 same memory location for the variable. */
2158 htab = or1k_elf_hash_table (info);
2163 BFD_ASSERT (s != NULL);
2165 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2166 to copy the initial value out of the dynamic object and into the
2167 runtime process image. We need to remember the offset into the
2168 .rela.bss section we are going to use. */
2169 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2173 srel = htab->srelbss;
2174 BFD_ASSERT (srel != NULL);
2175 srel->size += sizeof (Elf32_External_Rela);
2179 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2182 /* Allocate space in .plt, .got and associated reloc sections for
2186 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2188 struct bfd_link_info *info;
2189 struct elf_or1k_link_hash_table *htab;
2190 struct elf_or1k_link_hash_entry *eh;
2191 struct elf_or1k_dyn_relocs *p;
2193 if (h->root.type == bfd_link_hash_indirect)
2196 info = (struct bfd_link_info *) inf;
2197 htab = or1k_elf_hash_table (info);
2201 eh = (struct elf_or1k_link_hash_entry *) h;
2203 if (htab->root.dynamic_sections_created
2204 && h->plt.refcount > 0)
2206 /* Make sure this symbol is output as a dynamic symbol.
2207 Undefined weak syms won't yet be marked as dynamic. */
2208 if (h->dynindx == -1
2209 && !h->forced_local)
2211 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2215 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2217 asection *s = htab->splt;
2219 /* If this is the first .plt entry, make room for the special
2222 s->size = PLT_ENTRY_SIZE;
2224 h->plt.offset = s->size;
2226 /* If this symbol is not defined in a regular file, and we are
2227 not generating a shared library, then set the symbol to this
2228 location in the .plt. This is required to make function
2229 pointers compare as equal between the normal executable and
2230 the shared library. */
2231 if (! bfd_link_pic (info)
2234 h->root.u.def.section = s;
2235 h->root.u.def.value = h->plt.offset;
2238 /* Make room for this entry. */
2239 s->size += PLT_ENTRY_SIZE;
2241 /* We also need to make an entry in the .got.plt section, which
2242 will be placed in the .got section by the linker script. */
2243 htab->sgotplt->size += 4;
2245 /* We also need to make an entry in the .rel.plt section. */
2246 htab->srelplt->size += sizeof (Elf32_External_Rela);
2250 h->plt.offset = (bfd_vma) -1;
2256 h->plt.offset = (bfd_vma) -1;
2260 if (h->got.refcount > 0)
2264 unsigned char tls_type;
2266 /* Make sure this symbol is output as a dynamic symbol.
2267 Undefined weak syms won't yet be marked as dynamic. */
2268 if (h->dynindx == -1
2269 && !h->forced_local)
2271 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2277 h->got.offset = s->size;
2279 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2281 /* TLS GD requires two GOT and two relocs. */
2282 if (tls_type == TLS_GD)
2286 dyn = htab->root.dynamic_sections_created;
2287 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2289 if (tls_type == TLS_GD)
2290 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2292 htab->srelgot->size += sizeof (Elf32_External_Rela);
2296 h->got.offset = (bfd_vma) -1;
2298 if (eh->dyn_relocs == NULL)
2301 /* In the shared -Bsymbolic case, discard space allocated for
2302 dynamic pc-relative relocs against symbols which turn out to be
2303 defined in regular objects. For the normal shared case, discard
2304 space for pc-relative relocs that have become local due to symbol
2305 visibility changes. */
2307 if (bfd_link_pic (info))
2309 if (SYMBOL_CALLS_LOCAL (info, h))
2311 struct elf_or1k_dyn_relocs **pp;
2313 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2315 p->count -= p->pc_count;
2324 /* Also discard relocs on undefined weak syms with non-default
2326 if (eh->dyn_relocs != NULL
2327 && h->root.type == bfd_link_hash_undefweak)
2329 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2330 eh->dyn_relocs = NULL;
2332 /* Make sure undefined weak symbols are output as a dynamic
2334 else if (h->dynindx == -1
2335 && !h->forced_local)
2337 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2344 /* For the non-shared case, discard space for relocs against
2345 symbols which turn out to need copy relocs or are not
2351 || (htab->root.dynamic_sections_created
2352 && (h->root.type == bfd_link_hash_undefweak
2353 || h->root.type == bfd_link_hash_undefined))))
2355 /* Make sure this symbol is output as a dynamic symbol.
2356 Undefined weak syms won't yet be marked as dynamic. */
2357 if (h->dynindx == -1
2358 && !h->forced_local)
2360 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2364 /* If that succeeded, we know we'll be keeping all the
2366 if (h->dynindx != -1)
2370 eh->dyn_relocs = NULL;
2375 /* Finally, allocate space. */
2376 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2378 asection *sreloc = elf_section_data (p->sec)->sreloc;
2379 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2385 /* Find any dynamic relocs that apply to read-only sections. */
2388 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2390 struct elf_or1k_link_hash_entry *eh;
2391 struct elf_or1k_dyn_relocs *p;
2393 eh = (struct elf_or1k_link_hash_entry *) h;
2394 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2396 asection *s = p->sec->output_section;
2398 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2400 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2402 info->flags |= DF_TEXTREL;
2404 /* Not an error, just cut short the traversal. */
2411 /* Set the sizes of the dynamic sections. */
2414 or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2415 struct bfd_link_info *info)
2417 struct elf_or1k_link_hash_table *htab;
2423 htab = or1k_elf_hash_table (info);
2427 dynobj = htab->root.dynobj;
2428 BFD_ASSERT (dynobj != NULL);
2430 if (htab->root.dynamic_sections_created)
2432 /* Set the contents of the .interp section to the interpreter. */
2433 if (bfd_link_executable (info) && !info->nointerp)
2435 s = bfd_get_section_by_name (dynobj, ".interp");
2436 BFD_ASSERT (s != NULL);
2437 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2438 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2442 /* Set up .got offsets for local syms, and space for local dynamic
2444 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2446 bfd_signed_vma *local_got;
2447 bfd_signed_vma *end_local_got;
2448 bfd_size_type locsymcount;
2449 Elf_Internal_Shdr *symtab_hdr;
2450 unsigned char *local_tls_type;
2453 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2456 for (s = ibfd->sections; s != NULL; s = s->next)
2458 struct elf_or1k_dyn_relocs *p;
2460 for (p = ((struct elf_or1k_dyn_relocs *)
2461 elf_section_data (s)->local_dynrel);
2465 if (! bfd_is_abs_section (p->sec)
2466 && bfd_is_abs_section (p->sec->output_section))
2468 /* Input section has been discarded, either because
2469 it is a copy of a linkonce section or due to
2470 linker script /DISCARD/, so we'll be discarding
2473 else if (p->count != 0)
2475 srel = elf_section_data (p->sec)->sreloc;
2476 srel->size += p->count * sizeof (Elf32_External_Rela);
2477 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2478 info->flags |= DF_TEXTREL;
2483 local_got = elf_local_got_refcounts (ibfd);
2487 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2488 locsymcount = symtab_hdr->sh_info;
2489 end_local_got = local_got + locsymcount;
2491 srel = htab->srelgot;
2492 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2493 for (; local_got < end_local_got; ++local_got)
2497 *local_got = s->size;
2499 /* TLS GD requires two GOT and two relocs. */
2500 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2504 if (bfd_link_pic (info))
2506 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2507 srel->size += 2 * sizeof (Elf32_External_Rela);
2509 srel->size += sizeof (Elf32_External_Rela);
2514 *local_got = (bfd_vma) -1;
2521 /* Allocate global sym .plt and .got entries, and space for global
2522 sym dynamic relocs. */
2523 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2525 /* We now have determined the sizes of the various dynamic sections.
2526 Allocate memory for them. */
2528 for (s = dynobj->sections; s != NULL; s = s->next)
2530 if ((s->flags & SEC_LINKER_CREATED) == 0)
2535 || s == htab->sgotplt
2536 || s == htab->sdynbss)
2538 /* Strip this section if we don't need it; see the
2541 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2543 if (s->size != 0 && s != htab->srelplt)
2546 /* We use the reloc_count field as a counter if we need
2547 to copy relocs into the output file. */
2551 /* It's not one of our sections, so don't allocate space. */
2556 /* If we don't need this section, strip it from the
2557 output file. This is mostly to handle .rela.bss and
2558 .rela.plt. We must create both sections in
2559 create_dynamic_sections, because they must be created
2560 before the linker maps input sections to output
2561 sections. The linker does that before
2562 adjust_dynamic_symbol is called, and it is that
2563 function which decides whether anything needs to go
2564 into these sections. */
2565 s->flags |= SEC_EXCLUDE;
2569 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2572 /* Allocate memory for the section contents. We use bfd_zalloc
2573 here in case unused entries are not reclaimed before the
2574 section's contents are written out. This should not happen,
2575 but this way if it does, we get a R_OR1K_NONE reloc instead
2577 s->contents = bfd_zalloc (dynobj, s->size);
2579 if (s->contents == NULL)
2583 if (htab->root.dynamic_sections_created)
2585 /* Add some entries to the .dynamic section. We fill in the
2586 values later, in or1k_elf_finish_dynamic_sections, but we
2587 must add the entries now so that we get the correct size for
2588 the .dynamic section. The DT_DEBUG entry is filled in by the
2589 dynamic linker and used by the debugger. */
2590 #define add_dynamic_entry(TAG, VAL) \
2591 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2593 if (bfd_link_executable (info))
2595 if (! add_dynamic_entry (DT_DEBUG, 0))
2599 if (htab->splt->size != 0)
2601 if (! add_dynamic_entry (DT_PLTGOT, 0)
2602 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2603 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2604 || ! add_dynamic_entry (DT_JMPREL, 0))
2610 if (! add_dynamic_entry (DT_RELA, 0)
2611 || ! add_dynamic_entry (DT_RELASZ, 0)
2612 || ! add_dynamic_entry (DT_RELAENT,
2613 sizeof (Elf32_External_Rela)))
2616 /* If any dynamic relocs apply to a read-only section,
2617 then we need a DT_TEXTREL entry. */
2618 if ((info->flags & DF_TEXTREL) == 0)
2619 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2622 if ((info->flags & DF_TEXTREL) != 0)
2624 if (! add_dynamic_entry (DT_TEXTREL, 0))
2630 #undef add_dynamic_entry
2634 /* Create dynamic sections when linking against a dynamic object. */
2637 or1k_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
2639 struct elf_or1k_link_hash_table *htab;
2641 htab = or1k_elf_hash_table (info);
2645 if (!htab->sgot && !create_got_section (dynobj, info))
2648 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
2651 htab->splt = bfd_get_section_by_name (dynobj, ".plt");
2652 htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
2653 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
2654 if (!bfd_link_pic (info))
2655 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
2657 if (!htab->splt || !htab->srelplt || !htab->sdynbss
2658 || (!bfd_link_pic (info) && !htab->srelbss))
2664 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2667 or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
2668 struct elf_link_hash_entry *dir,
2669 struct elf_link_hash_entry *ind)
2671 struct elf_or1k_link_hash_entry * edir;
2672 struct elf_or1k_link_hash_entry * eind;
2674 edir = (struct elf_or1k_link_hash_entry *) dir;
2675 eind = (struct elf_or1k_link_hash_entry *) ind;
2677 if (eind->dyn_relocs != NULL)
2679 if (edir->dyn_relocs != NULL)
2681 struct elf_or1k_dyn_relocs **pp;
2682 struct elf_or1k_dyn_relocs *p;
2684 /* Add reloc counts against the indirect sym to the direct sym
2685 list. Merge any entries against the same section. */
2686 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2688 struct elf_or1k_dyn_relocs *q;
2690 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2691 if (q->sec == p->sec)
2693 q->pc_count += p->pc_count;
2694 q->count += p->count;
2701 *pp = edir->dyn_relocs;
2704 edir->dyn_relocs = eind->dyn_relocs;
2705 eind->dyn_relocs = NULL;
2708 if (ind->root.type == bfd_link_hash_indirect)
2710 if (dir->got.refcount <= 0)
2712 edir->tls_type = eind->tls_type;
2713 eind->tls_type = TLS_UNKNOWN;
2717 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2720 /* Set the right machine number. */
2723 or1k_elf_object_p (bfd *abfd)
2725 unsigned long mach = bfd_mach_or1k;
2727 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2728 mach = bfd_mach_or1knd;
2730 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2733 /* Store the machine number in the flags field. */
2736 or1k_elf_final_write_processing (bfd *abfd,
2737 bfd_boolean linker ATTRIBUTE_UNUSED)
2739 switch (bfd_get_mach (abfd))
2744 case bfd_mach_or1knd:
2745 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2751 or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2753 BFD_ASSERT (!elf_flags_init (abfd)
2754 || elf_elfheader (abfd)->e_flags == flags);
2756 elf_elfheader (abfd)->e_flags = flags;
2757 elf_flags_init (abfd) = TRUE;
2761 /* Make sure all input files are consistent with respect to
2762 EF_OR1K_NODELAY flag setting. */
2765 elf32_or1k_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
2770 in_flags = elf_elfheader (ibfd)->e_flags;
2771 out_flags = elf_elfheader (obfd)->e_flags;
2773 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2774 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2777 if (!elf_flags_init (obfd))
2779 elf_flags_init (obfd) = TRUE;
2780 elf_elfheader (obfd)->e_flags = in_flags;
2785 if (in_flags == out_flags)
2788 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2790 (*_bfd_error_handler)
2791 (_("%B: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
2793 bfd_set_error (bfd_error_bad_value);
2801 #define ELF_ARCH bfd_arch_or1k
2802 #define ELF_MACHINE_CODE EM_OR1K
2803 #define ELF_TARGET_ID OR1K_ELF_DATA
2804 #define ELF_MAXPAGESIZE 0x2000
2806 #define TARGET_BIG_SYM or1k_elf32_vec
2807 #define TARGET_BIG_NAME "elf32-or1k"
2809 #define elf_info_to_howto_rel NULL
2810 #define elf_info_to_howto or1k_info_to_howto_rela
2811 #define elf_backend_relocate_section or1k_elf_relocate_section
2812 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
2813 #define elf_backend_gc_sweep_hook or1k_elf_gc_sweep_hook
2814 #define elf_backend_check_relocs or1k_elf_check_relocs
2815 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2816 #define elf_backend_can_gc_sections 1
2817 #define elf_backend_rela_normal 1
2819 #define bfd_elf32_mkobject elf_or1k_mkobject
2821 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2822 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2823 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2824 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2826 #define elf_backend_object_p or1k_elf_object_p
2827 #define elf_backend_final_write_processing or1k_elf_final_write_processing
2828 #define elf_backend_can_refcount 1
2830 #define elf_backend_plt_readonly 1
2831 #define elf_backend_want_got_plt 1
2832 #define elf_backend_want_plt_sym 0
2833 #define elf_backend_got_header_size 12
2834 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2835 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
2836 #define elf_backend_create_dynamic_sections or1k_elf_create_dynamic_sections
2837 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2838 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2839 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2840 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
2842 #include "elf32-target.h"