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[binutils-gdb.git] / bfd / elf32-or1k.c
1 /* Or1k-specific support for 32-bit ELF.
2 Copyright (C) 2001-2020 Free Software Foundation, Inc.
3 Contributed for OR32 by Johan Rydberg, jrydberg@opencores.org
4
5 PIC parts added by Stefan Kristiansson, stefan.kristiansson@saunalahti.fi,
6 largely based on elf32-m32r.c and elf32-microblaze.c.
7
8 This file is part of BFD, the Binary File Descriptor library.
9
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.
14
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.
19
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/>. */
22
23 #include "sysdep.h"
24 #include "bfd.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf/or1k.h"
28 #include "libiberty.h"
29
30 #define N_ONES(X) (((bfd_vma)2 << (X)) - 1)
31
32 #define PLT_ENTRY_SIZE 16
33
34 #define OR1K_MOVHI(D) (0x18000000 | (D << 21))
35 #define OR1K_ADRP(D) (0x08000000 | (D << 21))
36 #define OR1K_LWZ(D,A) (0x84000000 | (D << 21) | (A << 16))
37 #define OR1K_ORI0(D) (0xA8000000 | (D << 21))
38 #define OR1K_JR(B) (0x44000000 | (B << 11))
39 #define OR1K_NOP 0x15000000
40
41 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
42
43 static reloc_howto_type or1k_elf_howto_table[] =
44 {
45 /* This reloc does nothing. */
46 HOWTO (R_OR1K_NONE, /* type */
47 0, /* rightshift */
48 3, /* size (0 = byte, 1 = short, 2 = long) */
49 0, /* bitsize */
50 FALSE, /* pc_relative */
51 0, /* bitpos */
52 complain_overflow_dont, /* complain_on_overflow */
53 bfd_elf_generic_reloc, /* special_function */
54 "R_OR1K_NONE", /* name */
55 FALSE, /* partial_inplace */
56 0, /* src_mask */
57 0, /* dst_mask */
58 FALSE), /* pcrel_offset */
59
60 HOWTO (R_OR1K_32,
61 0, /* rightshift */
62 2, /* size (0 = byte, 1 = short, 2 = long) */
63 32, /* bitsize */
64 FALSE, /* pc_relative */
65 0, /* bitpos */
66 complain_overflow_unsigned, /* complain_on_overflow */
67 bfd_elf_generic_reloc, /* special_function */
68 "R_OR1K_32", /* name */
69 FALSE, /* partial_inplace */
70 0, /* src_mask */
71 0xffffffff, /* dst_mask */
72 FALSE), /* pcrel_offset */
73
74 HOWTO (R_OR1K_16,
75 0, /* rightshift */
76 1, /* size (0 = byte, 1 = short, 2 = long) */
77 16, /* bitsize */
78 FALSE, /* pc_relative */
79 0, /* bitpos */
80 complain_overflow_unsigned, /* complain_on_overflow */
81 bfd_elf_generic_reloc, /* special_function */
82 "R_OR1K_16", /* name */
83 FALSE, /* partial_inplace */
84 0, /* src_mask */
85 0xffff, /* dst_mask */
86 FALSE), /* pcrel_offset */
87
88 HOWTO (R_OR1K_8,
89 0, /* rightshift */
90 0, /* size (0 = byte, 1 = short, 2 = long) */
91 8, /* bitsize */
92 FALSE, /* pc_relative */
93 0, /* bitpos */
94 complain_overflow_unsigned, /* complain_on_overflow */
95 bfd_elf_generic_reloc, /* special_function */
96 "R_OR1K_8", /* name */
97 FALSE, /* partial_inplace */
98 0, /* src_mask */
99 0xff, /* dst_mask */
100 FALSE), /* pcrel_offset */
101
102 HOWTO (R_OR1K_LO_16_IN_INSN, /* type */
103 0, /* rightshift */
104 2, /* size (0 = byte, 1 = short, 2 = long) */
105 16, /* bitsize */
106 FALSE, /* pc_relative */
107 0, /* bitpos */
108 complain_overflow_dont, /* complain_on_overflow */
109 bfd_elf_generic_reloc, /* special_function */
110 "R_OR1K_LO_16_IN_INSN", /* name */
111 FALSE, /* partial_inplace */
112 0, /* src_mask */
113 0x0000ffff, /* dst_mask */
114 FALSE), /* pcrel_offset */
115
116 HOWTO (R_OR1K_HI_16_IN_INSN, /* type */
117 16, /* rightshift */
118 2, /* size (0 = byte, 1 = short, 2 = long) */
119 16, /* bitsize */
120 FALSE, /* pc_relative */
121 0, /* bitpos */
122 complain_overflow_dont, /* complain_on_overflow */
123 bfd_elf_generic_reloc, /* special_function */
124 "R_OR1K_HI_16_IN_INSN", /* name */
125 FALSE, /* partial_inplace */
126 0, /* src_mask */
127 0x0000ffff, /* dst_mask */
128 FALSE), /* pcrel_offset */
129
130 /* A PC relative 26 bit relocation, right shifted by 2. */
131 HOWTO (R_OR1K_INSN_REL_26, /* type */
132 2, /* rightshift */
133 2, /* size (0 = byte, 1 = short, 2 = long) */
134 26, /* bitsize */
135 TRUE, /* pc_relative */
136 0, /* bitpos */
137 complain_overflow_signed, /* complain_on_overflow */
138 bfd_elf_generic_reloc, /* special_function */
139 "R_OR1K_INSN_REL_26", /* name */
140 FALSE, /* partial_inplace */
141 0, /* src_mask */
142 0x03ffffff, /* dst_mask */
143 TRUE), /* pcrel_offset */
144
145 /* GNU extension to record C++ vtable hierarchy. */
146 HOWTO (R_OR1K_GNU_VTINHERIT, /* type */
147 0, /* rightshift */
148 2, /* size (0 = byte, 1 = short, 2 = long) */
149 0, /* bitsize */
150 FALSE, /* pc_relative */
151 0, /* bitpos */
152 complain_overflow_dont, /* complain_on_overflow */
153 NULL, /* special_function */
154 "R_OR1K_GNU_VTINHERIT", /* name */
155 FALSE, /* partial_inplace */
156 0, /* src_mask */
157 0, /* dst_mask */
158 FALSE), /* pcrel_offset */
159
160 /* GNU extension to record C++ vtable member usage. */
161 HOWTO (R_OR1K_GNU_VTENTRY, /* type */
162 0, /* rightshift */
163 2, /* size (0 = byte, 1 = short, 2 = long) */
164 0, /* bitsize */
165 FALSE, /* pc_relative */
166 0, /* bitpos */
167 complain_overflow_dont, /* complain_on_overflow */
168 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
169 "R_OR1K_GNU_VTENTRY", /* name */
170 FALSE, /* partial_inplace */
171 0, /* src_mask */
172 0, /* dst_mask */
173 FALSE), /* pcrel_offset */
174
175 HOWTO (R_OR1K_32_PCREL,
176 0, /* rightshift */
177 2, /* size (0 = byte, 1 = short, 2 = long) */
178 32, /* bitsize */
179 TRUE, /* pc_relative */
180 0, /* bitpos */
181 complain_overflow_signed, /* complain_on_overflow */
182 bfd_elf_generic_reloc, /* special_function */
183 "R_OR1K_32_PCREL", /* name */
184 FALSE, /* partial_inplace */
185 0, /* src_mask */
186 0xffffffff, /* dst_mask */
187 TRUE), /* pcrel_offset */
188
189 HOWTO (R_OR1K_16_PCREL,
190 0, /* rightshift */
191 1, /* size (0 = byte, 1 = short, 2 = long) */
192 16, /* bitsize */
193 TRUE, /* pc_relative */
194 0, /* bitpos */
195 complain_overflow_signed, /* complain_on_overflow */
196 bfd_elf_generic_reloc, /* special_function */
197 "R_OR1K_16_PCREL", /* name */
198 FALSE, /* partial_inplace */
199 0, /* src_mask */
200 0xffff, /* dst_mask */
201 TRUE), /* pcrel_offset */
202
203 HOWTO (R_OR1K_8_PCREL,
204 0, /* rightshift */
205 0, /* size (0 = byte, 1 = short, 2 = long) */
206 8, /* bitsize */
207 TRUE, /* pc_relative */
208 0, /* bitpos */
209 complain_overflow_signed, /* complain_on_overflow */
210 bfd_elf_generic_reloc, /* special_function */
211 "R_OR1K_8_PCREL", /* name */
212 FALSE, /* partial_inplace */
213 0, /* src_mask */
214 0xff, /* dst_mask */
215 TRUE), /* pcrel_offset */
216
217 HOWTO (R_OR1K_GOTPC_HI16, /* Type. */
218 16, /* Rightshift. */
219 2, /* Size (0 = byte, 1 = short, 2 = long). */
220 16, /* Bitsize. */
221 TRUE, /* PC_relative. */
222 0, /* Bitpos. */
223 complain_overflow_dont, /* Complain on overflow. */
224 bfd_elf_generic_reloc, /* Special Function. */
225 "R_OR1K_GOTPC_HI16", /* Name. */
226 FALSE, /* Partial Inplace. */
227 0, /* Source Mask. */
228 0xffff, /* Dest Mask. */
229 TRUE), /* PC relative offset? */
230
231 HOWTO (R_OR1K_GOTPC_LO16, /* Type. */
232 0, /* Rightshift. */
233 2, /* Size (0 = byte, 1 = short, 2 = long). */
234 16, /* Bitsize. */
235 TRUE, /* PC_relative. */
236 0, /* Bitpos. */
237 complain_overflow_dont, /* Complain on overflow. */
238 bfd_elf_generic_reloc, /* Special Function. */
239 "R_OR1K_GOTPC_LO16", /* Name. */
240 FALSE, /* Partial Inplace. */
241 0, /* Source Mask. */
242 0xffff, /* Dest Mask. */
243 TRUE), /* PC relative offset? */
244
245 HOWTO (R_OR1K_GOT16, /* type */
246 0, /* rightshift */
247 2, /* size (0 = byte, 1 = short, 2 = long) */
248 16, /* bitsize */
249 FALSE, /* pc_relative */
250 0, /* bitpos */
251 complain_overflow_signed, /* complain_on_overflow */
252 bfd_elf_generic_reloc, /* special_function */
253 "R_OR1K_GOT16", /* name */
254 FALSE, /* partial_inplace */
255 0, /* src_mask */
256 0xffff, /* dst_mask */
257 FALSE), /* pcrel_offset */
258
259 /* A 26 bit PLT relocation. Shifted by 2. */
260 HOWTO (R_OR1K_PLT26, /* Type. */
261 2, /* Rightshift. */
262 2, /* Size (0 = byte, 1 = short, 2 = long). */
263 26, /* Bitsize. */
264 TRUE, /* pc_relative. */
265 0, /* Bitpos. */
266 complain_overflow_signed, /* Complain on overflow. */
267 bfd_elf_generic_reloc, /* Special Function. */
268 "R_OR1K_PLT26", /* Name. */
269 FALSE, /* Partial Inplace. */
270 0, /* Source Mask. */
271 0x03ffffff, /* Dest Mask. */
272 TRUE), /* PC relative offset? */
273
274 HOWTO (R_OR1K_GOTOFF_HI16, /* type */
275 16, /* rightshift */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
277 16, /* bitsize */
278 FALSE, /* pc_relative */
279 0, /* bitpos */
280 complain_overflow_dont, /* complain_on_overflow */
281 bfd_elf_generic_reloc, /* special_function */
282 "R_OR1K_GOTOFF_HI16", /* name */
283 FALSE, /* partial_inplace */
284 0x0, /* src_mask */
285 0xffff, /* dst_mask */
286 FALSE), /* pcrel_offset */
287
288 HOWTO (R_OR1K_GOTOFF_LO16, /* type */
289 0, /* rightshift */
290 2, /* size (0 = byte, 1 = short, 2 = long) */
291 16, /* bitsize */
292 FALSE, /* pc_relative */
293 0, /* bitpos */
294 complain_overflow_dont, /* complain_on_overflow */
295 bfd_elf_generic_reloc, /* special_function */
296 "R_OR1K_GOTOFF_LO16", /* name */
297 FALSE, /* partial_inplace */
298 0x0, /* src_mask */
299 0xffff, /* dst_mask */
300 FALSE), /* pcrel_offset */
301
302 HOWTO (R_OR1K_COPY, /* type */
303 0, /* rightshift */
304 2, /* size (0 = byte, 1 = short, 2 = long) */
305 32, /* bitsize */
306 FALSE, /* pc_relative */
307 0, /* bitpos */
308 complain_overflow_bitfield, /* complain_on_overflow */
309 bfd_elf_generic_reloc, /* special_function */
310 "R_OR1K_COPY", /* name */
311 FALSE, /* partial_inplace */
312 0xffffffff, /* src_mask */
313 0xffffffff, /* dst_mask */
314 FALSE), /* pcrel_offset */
315
316 HOWTO (R_OR1K_GLOB_DAT, /* type */
317 0, /* rightshift */
318 2, /* size (0 = byte, 1 = short, 2 = long) */
319 32, /* bitsize */
320 FALSE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_bitfield, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_OR1K_GLOB_DAT", /* name */
325 FALSE, /* partial_inplace */
326 0xffffffff, /* src_mask */
327 0xffffffff, /* dst_mask */
328 FALSE), /* pcrel_offset */
329
330 HOWTO (R_OR1K_JMP_SLOT, /* type */
331 0, /* rightshift */
332 2, /* size (0 = byte, 1 = short, 2 = long) */
333 32, /* bitsize */
334 FALSE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_bitfield, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_OR1K_JMP_SLOT", /* name */
339 FALSE, /* partial_inplace */
340 0xffffffff, /* src_mask */
341 0xffffffff, /* dst_mask */
342 FALSE), /* pcrel_offset */
343
344 HOWTO (R_OR1K_RELATIVE, /* type */
345 0, /* rightshift */
346 2, /* size (0 = byte, 1 = short, 2 = long) */
347 32, /* bitsize */
348 FALSE, /* pc_relative */
349 0, /* bitpos */
350 complain_overflow_bitfield, /* complain_on_overflow */
351 bfd_elf_generic_reloc, /* special_function */
352 "R_OR1K_RELATIVE", /* name */
353 FALSE, /* partial_inplace */
354 0xffffffff, /* src_mask */
355 0xffffffff, /* dst_mask */
356 FALSE), /* pcrel_offset */
357
358 HOWTO (R_OR1K_TLS_GD_HI16, /* type */
359 16, /* rightshift */
360 2, /* size (0 = byte, 1 = short, 2 = long) */
361 16, /* bitsize */
362 FALSE, /* pc_relative */
363 0, /* bitpos */
364 complain_overflow_dont, /* complain_on_overflow */
365 bfd_elf_generic_reloc, /* special_function */
366 "R_OR1K_TLS_GD_HI16", /* name */
367 FALSE, /* partial_inplace */
368 0x0, /* src_mask */
369 0xffff, /* dst_mask */
370 FALSE), /* pcrel_offset */
371
372 HOWTO (R_OR1K_TLS_GD_LO16, /* type */
373 0, /* rightshift */
374 2, /* size (0 = byte, 1 = short, 2 = long) */
375 16, /* bitsize */
376 FALSE, /* pc_relative */
377 0, /* bitpos */
378 complain_overflow_dont, /* complain_on_overflow */
379 bfd_elf_generic_reloc, /* special_function */
380 "R_OR1K_TLS_GD_LO16", /* name */
381 FALSE, /* partial_inplace */
382 0x0, /* src_mask */
383 0xffff, /* dst_mask */
384 FALSE), /* pcrel_offset */
385
386 HOWTO (R_OR1K_TLS_LDM_HI16, /* type */
387 16, /* rightshift */
388 2, /* size (0 = byte, 1 = short, 2 = long) */
389 16, /* bitsize */
390 FALSE, /* pc_relative */
391 0, /* bitpos */
392 complain_overflow_dont, /* complain_on_overflow */
393 bfd_elf_generic_reloc, /* special_function */
394 "R_OR1K_TLS_LDM_HI16", /* name */
395 FALSE, /* partial_inplace */
396 0x0, /* src_mask */
397 0xffff, /* dst_mask */
398 FALSE), /* pcrel_offset */
399
400 HOWTO (R_OR1K_TLS_LDM_LO16, /* type */
401 0, /* rightshift */
402 2, /* size (0 = byte, 1 = short, 2 = long) */
403 16, /* bitsize */
404 FALSE, /* pc_relative */
405 0, /* bitpos */
406 complain_overflow_dont, /* complain_on_overflow */
407 bfd_elf_generic_reloc, /* special_function */
408 "R_OR1K_TLS_LDM_LO16", /* name */
409 FALSE, /* partial_inplace */
410 0x0, /* src_mask */
411 0xffff, /* dst_mask */
412 FALSE), /* pcrel_offset */
413
414 HOWTO (R_OR1K_TLS_LDO_HI16, /* type */
415 16, /* rightshift */
416 2, /* size (0 = byte, 1 = short, 2 = long) */
417 16, /* bitsize */
418 FALSE, /* pc_relative */
419 0, /* bitpos */
420 complain_overflow_dont, /* complain_on_overflow */
421 bfd_elf_generic_reloc, /* special_function */
422 "R_OR1K_TLS_LDO_HI16", /* name */
423 FALSE, /* partial_inplace */
424 0x0, /* src_mask */
425 0xffff, /* dst_mask */
426 FALSE), /* pcrel_offset */
427
428 HOWTO (R_OR1K_TLS_LDO_LO16, /* type */
429 0, /* rightshift */
430 2, /* size (0 = byte, 1 = short, 2 = long) */
431 16, /* bitsize */
432 FALSE, /* pc_relative */
433 0, /* bitpos */
434 complain_overflow_dont, /* complain_on_overflow */
435 bfd_elf_generic_reloc, /* special_function */
436 "R_OR1K_TLS_LDO_LO16", /* name */
437 FALSE, /* partial_inplace */
438 0x0, /* src_mask */
439 0xffff, /* dst_mask */
440 FALSE), /* pcrel_offset */
441
442 HOWTO (R_OR1K_TLS_IE_HI16, /* type */
443 16, /* rightshift */
444 2, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
446 FALSE, /* pc_relative */
447 0, /* bitpos */
448 complain_overflow_dont, /* complain_on_overflow */
449 bfd_elf_generic_reloc, /* special_function */
450 "R_OR1K_TLS_IE_HI16", /* name */
451 FALSE, /* partial_inplace */
452 0x0, /* src_mask */
453 0xffff, /* dst_mask */
454 FALSE), /* pcrel_offset */
455
456 HOWTO (R_OR1K_TLS_IE_LO16, /* type */
457 0, /* rightshift */
458 2, /* size (0 = byte, 1 = short, 2 = long) */
459 16, /* bitsize */
460 FALSE, /* pc_relative */
461 0, /* bitpos */
462 complain_overflow_dont, /* complain_on_overflow */
463 bfd_elf_generic_reloc, /* special_function */
464 "R_OR1K_TLS_IE_LO16", /* name */
465 FALSE, /* partial_inplace */
466 0x0, /* src_mask */
467 0xffff, /* dst_mask */
468 FALSE), /* pcrel_offset */
469
470 HOWTO (R_OR1K_TLS_LE_HI16, /* type */
471 16, /* rightshift */
472 2, /* size (0 = byte, 1 = short, 2 = long) */
473 16, /* bitsize */
474 FALSE, /* pc_relative */
475 0, /* bitpos */
476 complain_overflow_dont, /* complain_on_overflow */
477 bfd_elf_generic_reloc, /* special_function */
478 "R_OR1K_TLS_LE_HI16", /* name */
479 FALSE, /* partial_inplace */
480 0x0, /* src_mask */
481 0xffff, /* dst_mask */
482 FALSE), /* pcrel_offset */
483
484 HOWTO (R_OR1K_TLS_LE_LO16, /* type */
485 0, /* rightshift */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
487 16, /* bitsize */
488 FALSE, /* pc_relative */
489 0, /* bitpos */
490 complain_overflow_dont, /* complain_on_overflow */
491 bfd_elf_generic_reloc, /* special_function */
492 "R_OR1K_TLS_LE_LO16", /* name */
493 FALSE, /* partial_inplace */
494 0x0, /* src_mask */
495 0xffff, /* dst_mask */
496 FALSE), /* pcrel_offset */
497
498 HOWTO (R_OR1K_TLS_TPOFF, /* type */
499 0, /* rightshift */
500 2, /* size (0 = byte, 1 = short, 2 = long) */
501 32, /* bitsize */
502 FALSE, /* pc_relative */
503 0, /* bitpos */
504 complain_overflow_bitfield, /* complain_on_overflow */
505 bfd_elf_generic_reloc, /* special_function */
506 "R_OR1K_TLS_TPOFF", /* name */
507 FALSE, /* partial_inplace */
508 0xffffffff, /* src_mask */
509 0xffffffff, /* dst_mask */
510 FALSE), /* pcrel_offset */
511
512 HOWTO (R_OR1K_TLS_DTPOFF, /* type */
513 0, /* rightshift */
514 2, /* size (0 = byte, 1 = short, 2 = long) */
515 32, /* bitsize */
516 FALSE, /* pc_relative */
517 0, /* bitpos */
518 complain_overflow_bitfield, /* complain_on_overflow */
519 bfd_elf_generic_reloc, /* special_function */
520 "R_OR1K_TLS_DTPOFF", /* name */
521 FALSE, /* partial_inplace */
522 0xffffffff, /* src_mask */
523 0xffffffff, /* dst_mask */
524 FALSE), /* pcrel_offset */
525
526 HOWTO (R_OR1K_TLS_DTPMOD, /* type */
527 0, /* rightshift */
528 2, /* size (0 = byte, 1 = short, 2 = long) */
529 32, /* bitsize */
530 FALSE, /* pc_relative */
531 0, /* bitpos */
532 complain_overflow_bitfield, /* complain_on_overflow */
533 bfd_elf_generic_reloc, /* special_function */
534 "R_OR1K_TLS_DTPMOD", /* name */
535 FALSE, /* partial_inplace */
536 0xffffffff, /* src_mask */
537 0xffffffff, /* dst_mask */
538 FALSE), /* pcrel_offset */
539
540 HOWTO (R_OR1K_AHI16, /* type */
541 16, /* rightshift */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
543 16, /* bitsize */
544 FALSE, /* pc_relative */
545 0, /* bitpos */
546 complain_overflow_dont, /* complain_on_overflow */
547 bfd_elf_generic_reloc, /* special_function */
548 "R_OR1K_AHI16", /* name */
549 FALSE, /* partial_inplace */
550 0x0, /* src_mask */
551 0xffff, /* dst_mask */
552 FALSE), /* pcrel_offset */
553
554 HOWTO (R_OR1K_GOTOFF_AHI16, /* type */
555 16, /* rightshift */
556 2, /* size (0 = byte, 1 = short, 2 = long) */
557 16, /* bitsize */
558 FALSE, /* pc_relative */
559 0, /* bitpos */
560 complain_overflow_dont, /* complain_on_overflow */
561 bfd_elf_generic_reloc, /* special_function */
562 "R_OR1K_GOTOFF_AHI16", /* name */
563 FALSE, /* partial_inplace */
564 0x0, /* src_mask */
565 0xffff, /* dst_mask */
566 FALSE), /* pcrel_offset */
567
568 HOWTO (R_OR1K_TLS_IE_AHI16, /* type */
569 16, /* rightshift */
570 2, /* size (0 = byte, 1 = short, 2 = long) */
571 16, /* bitsize */
572 FALSE, /* pc_relative */
573 0, /* bitpos */
574 complain_overflow_dont, /* complain_on_overflow */
575 bfd_elf_generic_reloc, /* special_function */
576 "R_OR1K_TLS_IE_AHI16", /* name */
577 FALSE, /* partial_inplace */
578 0x0, /* src_mask */
579 0xffff, /* dst_mask */
580 FALSE), /* pcrel_offset */
581
582 HOWTO (R_OR1K_TLS_LE_AHI16, /* type */
583 16, /* rightshift */
584 2, /* size (0 = byte, 1 = short, 2 = long) */
585 16, /* bitsize */
586 FALSE, /* pc_relative */
587 0, /* bitpos */
588 complain_overflow_dont, /* complain_on_overflow */
589 bfd_elf_generic_reloc, /* special_function */
590 "R_OR1K_TLS_LE_AHI16", /* name */
591 FALSE, /* partial_inplace */
592 0x0, /* src_mask */
593 0xffff, /* dst_mask */
594 FALSE), /* pcrel_offset */
595
596 HOWTO (R_OR1K_SLO16, /* type */
597 0, /* rightshift */
598 2, /* size (0 = byte, 1 = short, 2 = long) */
599 16, /* bitsize */
600 FALSE, /* pc_relative */
601 0, /* bitpos */
602 complain_overflow_dont, /* complain_on_overflow */
603 bfd_elf_generic_reloc, /* special_function */
604 "R_OR1K_SLO16", /* name */
605 FALSE, /* partial_inplace */
606 0x0, /* src_mask */
607 0xffff, /* dst_mask */
608 FALSE), /* pcrel_offset */
609
610 HOWTO (R_OR1K_GOTOFF_SLO16, /* type */
611 0, /* rightshift */
612 2, /* size (0 = byte, 1 = short, 2 = long) */
613 16, /* bitsize */
614 FALSE, /* pc_relative */
615 0, /* bitpos */
616 complain_overflow_dont, /* complain_on_overflow */
617 bfd_elf_generic_reloc, /* special_function */
618 "R_OR1K_GOTOFF_SLO16", /* name */
619 FALSE, /* partial_inplace */
620 0x0, /* src_mask */
621 0xffff, /* dst_mask */
622 FALSE), /* pcrel_offset */
623
624 HOWTO (R_OR1K_TLS_LE_SLO16, /* type */
625 0, /* rightshift */
626 2, /* size (0 = byte, 1 = short, 2 = long) */
627 16, /* bitsize */
628 FALSE, /* pc_relative */
629 0, /* bitpos */
630 complain_overflow_dont, /* complain_on_overflow */
631 bfd_elf_generic_reloc, /* special_function */
632 "R_OR1K_TLS_LE_SLO16", /* name */
633 FALSE, /* partial_inplace */
634 0x0, /* src_mask */
635 0xffff, /* dst_mask */
636 FALSE), /* pcrel_offset */
637
638 /* A page relative 21 bit relocation, right shifted by 13, aligned.
639 Note that this is *page* relative, not pc relative. The idea is
640 similar, but normally the section alignment is not such that the
641 assembler can infer a final value, which it attempts to do with
642 pc-relative relocations to local symbols. */
643 HOWTO (R_OR1K_PCREL_PG21, /* type */
644 13, /* rightshift */
645 2, /* size (0 = byte, 1 = short, 2 = long) */
646 21, /* bitsize */
647 FALSE, /* pc_relative */
648 0, /* bitpos */
649 complain_overflow_signed, /* complain_on_overflow */
650 bfd_elf_generic_reloc, /* special_function */
651 "R_OR1K_PCREL_PG21", /* name */
652 FALSE, /* partial_inplace */
653 0, /* src_mask */
654 0x001fffff, /* dst_mask */
655 TRUE), /* pcrel_offset */
656
657 HOWTO (R_OR1K_GOT_PG21, /* type */
658 13, /* rightshift */
659 2, /* size (0 = byte, 1 = short, 2 = long) */
660 21, /* bitsize */
661 FALSE, /* pc_relative */
662 0, /* bitpos */
663 complain_overflow_signed, /* complain_on_overflow */
664 bfd_elf_generic_reloc, /* special_function */
665 "R_OR1K_GOT_PG21", /* name */
666 FALSE, /* partial_inplace */
667 0, /* src_mask */
668 0x001fffff, /* dst_mask */
669 TRUE), /* pcrel_offset */
670
671 HOWTO (R_OR1K_TLS_GD_PG21, /* type */
672 13, /* rightshift */
673 2, /* size (0 = byte, 1 = short, 2 = long) */
674 21, /* bitsize */
675 FALSE, /* pc_relative */
676 0, /* bitpos */
677 complain_overflow_signed, /* complain_on_overflow */
678 bfd_elf_generic_reloc, /* special_function */
679 "R_OR1K_TLS_GD_PG21", /* name */
680 FALSE, /* partial_inplace */
681 0, /* src_mask */
682 0x001fffff, /* dst_mask */
683 TRUE), /* pcrel_offset */
684
685 HOWTO (R_OR1K_TLS_LDM_PG21, /* type */
686 13, /* rightshift */
687 2, /* size (0 = byte, 1 = short, 2 = long) */
688 21, /* bitsize */
689 FALSE, /* pc_relative */
690 0, /* bitpos */
691 complain_overflow_signed, /* complain_on_overflow */
692 bfd_elf_generic_reloc, /* special_function */
693 "R_OR1K_TLS_LDM_PG21", /* name */
694 FALSE, /* partial_inplace */
695 0, /* src_mask */
696 0x001fffff, /* dst_mask */
697 TRUE), /* pcrel_offset */
698
699 HOWTO (R_OR1K_TLS_IE_PG21, /* type */
700 13, /* rightshift */
701 2, /* size (0 = byte, 1 = short, 2 = long) */
702 21, /* bitsize */
703 FALSE, /* pc_relative */
704 0, /* bitpos */
705 complain_overflow_signed, /* complain_on_overflow */
706 bfd_elf_generic_reloc, /* special_function */
707 "R_OR1K_TLS_IE_PG21", /* name */
708 FALSE, /* partial_inplace */
709 0, /* src_mask */
710 0x001fffff, /* dst_mask */
711 TRUE), /* pcrel_offset */
712
713 HOWTO (R_OR1K_LO13, /* type */
714 0, /* rightshift */
715 2, /* size (0 = byte, 1 = short, 2 = long) */
716 16, /* bitsize */
717 FALSE, /* pc_relative */
718 0, /* bitpos */
719 complain_overflow_dont, /* complain_on_overflow */
720 bfd_elf_generic_reloc, /* special_function */
721 "R_OR1K_LO13", /* name */
722 FALSE, /* partial_inplace */
723 0x0, /* src_mask */
724 0xffff, /* dst_mask */
725 FALSE), /* pcrel_offset */
726
727 HOWTO (R_OR1K_GOT_LO13, /* type */
728 0, /* rightshift */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
730 16, /* bitsize */
731 FALSE, /* pc_relative */
732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
734 bfd_elf_generic_reloc, /* special_function */
735 "R_OR1K_GOT_LO13", /* name */
736 FALSE, /* partial_inplace */
737 0x0, /* src_mask */
738 0xffff, /* dst_mask */
739 FALSE), /* pcrel_offset */
740
741 HOWTO (R_OR1K_TLS_GD_LO13, /* type */
742 0, /* rightshift */
743 2, /* size (0 = byte, 1 = short, 2 = long) */
744 16, /* bitsize */
745 FALSE, /* pc_relative */
746 0, /* bitpos */
747 complain_overflow_dont, /* complain_on_overflow */
748 bfd_elf_generic_reloc, /* special_function */
749 "R_OR1K_TLS_GD_LO13", /* name */
750 FALSE, /* partial_inplace */
751 0x0, /* src_mask */
752 0xffff, /* dst_mask */
753 FALSE), /* pcrel_offset */
754
755 HOWTO (R_OR1K_TLS_LDM_LO13, /* type */
756 0, /* rightshift */
757 2, /* size (0 = byte, 1 = short, 2 = long) */
758 16, /* bitsize */
759 FALSE, /* pc_relative */
760 0, /* bitpos */
761 complain_overflow_dont, /* complain_on_overflow */
762 bfd_elf_generic_reloc, /* special_function */
763 "R_OR1K_TLD_LDM_LO13", /* name */
764 FALSE, /* partial_inplace */
765 0x0, /* src_mask */
766 0xffff, /* dst_mask */
767 FALSE), /* pcrel_offset */
768
769 HOWTO (R_OR1K_TLS_IE_LO13, /* type */
770 0, /* rightshift */
771 2, /* size (0 = byte, 1 = short, 2 = long) */
772 16, /* bitsize */
773 FALSE, /* pc_relative */
774 0, /* bitpos */
775 complain_overflow_dont, /* complain_on_overflow */
776 bfd_elf_generic_reloc, /* special_function */
777 "R_OR1K_TLS_IE_LO13", /* name */
778 FALSE, /* partial_inplace */
779 0x0, /* src_mask */
780 0xffff, /* dst_mask */
781 FALSE), /* pcrel_offset */
782
783 HOWTO (R_OR1K_SLO13, /* type */
784 0, /* rightshift */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
786 16, /* bitsize */
787 FALSE, /* pc_relative */
788 0, /* bitpos */
789 complain_overflow_dont, /* complain_on_overflow */
790 bfd_elf_generic_reloc, /* special_function */
791 "R_OR1K_SLO13", /* name */
792 FALSE, /* partial_inplace */
793 0x0, /* src_mask */
794 0xffff, /* dst_mask */
795 FALSE), /* pcrel_offset */
796
797 /* A 26 bit PLT relocation, using ADRP. Shifted by 2. */
798 HOWTO (R_OR1K_PLTA26, /* Type. */
799 2, /* Rightshift. */
800 2, /* Size (0 = byte, 1 = short, 2 = long). */
801 26, /* Bitsize. */
802 TRUE, /* pc_relative. */
803 0, /* Bitpos. */
804 complain_overflow_signed, /* Complain on overflow. */
805 bfd_elf_generic_reloc, /* Special Function. */
806 "R_OR1K_PLTA26", /* Name. */
807 FALSE, /* Partial Inplace. */
808 0, /* Source Mask. */
809 0x03ffffff, /* Dest Mask. */
810 TRUE), /* PC relative offset? */
811 };
812
813 /* Map BFD reloc types to Or1k ELF reloc types. */
814
815 struct or1k_reloc_map
816 {
817 bfd_reloc_code_real_type bfd_reloc_val;
818 unsigned int or1k_reloc_val;
819 };
820
821 static const struct or1k_reloc_map or1k_reloc_map[] =
822 {
823 { BFD_RELOC_NONE, R_OR1K_NONE },
824 { BFD_RELOC_32, R_OR1K_32 },
825 { BFD_RELOC_16, R_OR1K_16 },
826 { BFD_RELOC_8, R_OR1K_8 },
827 { BFD_RELOC_LO16, R_OR1K_LO_16_IN_INSN },
828 { BFD_RELOC_HI16, R_OR1K_HI_16_IN_INSN },
829 { BFD_RELOC_HI16_S, R_OR1K_AHI16 },
830 { BFD_RELOC_OR1K_REL_26, R_OR1K_INSN_REL_26 },
831 { BFD_RELOC_VTABLE_ENTRY, R_OR1K_GNU_VTENTRY },
832 { BFD_RELOC_VTABLE_INHERIT, R_OR1K_GNU_VTINHERIT },
833 { BFD_RELOC_32_PCREL, R_OR1K_32_PCREL },
834 { BFD_RELOC_16_PCREL, R_OR1K_16_PCREL },
835 { BFD_RELOC_8_PCREL, R_OR1K_8_PCREL },
836 { BFD_RELOC_LO16_GOTOFF, R_OR1K_GOTOFF_LO16 },
837 { BFD_RELOC_HI16_GOTOFF, R_OR1K_GOTOFF_HI16 },
838 { BFD_RELOC_HI16_S_GOTOFF, R_OR1K_GOTOFF_AHI16 },
839 { BFD_RELOC_OR1K_GOTPC_HI16, R_OR1K_GOTPC_HI16 },
840 { BFD_RELOC_OR1K_GOTPC_LO16, R_OR1K_GOTPC_LO16 },
841 { BFD_RELOC_OR1K_GOT16, R_OR1K_GOT16 },
842 { BFD_RELOC_OR1K_PLT26, R_OR1K_PLT26 },
843 { BFD_RELOC_OR1K_GLOB_DAT, R_OR1K_GLOB_DAT },
844 { BFD_RELOC_OR1K_COPY, R_OR1K_COPY },
845 { BFD_RELOC_OR1K_JMP_SLOT, R_OR1K_JMP_SLOT },
846 { BFD_RELOC_OR1K_RELATIVE, R_OR1K_RELATIVE },
847 { BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 },
848 { BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 },
849 { BFD_RELOC_OR1K_TLS_LDM_HI16, R_OR1K_TLS_LDM_HI16 },
850 { BFD_RELOC_OR1K_TLS_LDM_LO16, R_OR1K_TLS_LDM_LO16 },
851 { BFD_RELOC_OR1K_TLS_LDO_HI16, R_OR1K_TLS_LDO_HI16 },
852 { BFD_RELOC_OR1K_TLS_LDO_LO16, R_OR1K_TLS_LDO_LO16 },
853 { BFD_RELOC_OR1K_TLS_IE_HI16, R_OR1K_TLS_IE_HI16 },
854 { BFD_RELOC_OR1K_TLS_IE_LO16, R_OR1K_TLS_IE_LO16 },
855 { BFD_RELOC_OR1K_TLS_IE_AHI16, R_OR1K_TLS_IE_AHI16 },
856 { BFD_RELOC_OR1K_TLS_LE_HI16, R_OR1K_TLS_LE_HI16 },
857 { BFD_RELOC_OR1K_TLS_LE_LO16, R_OR1K_TLS_LE_LO16 },
858 { BFD_RELOC_OR1K_TLS_LE_AHI16, R_OR1K_TLS_LE_AHI16 },
859 { BFD_RELOC_OR1K_SLO16, R_OR1K_SLO16 },
860 { BFD_RELOC_OR1K_GOTOFF_SLO16, R_OR1K_GOTOFF_SLO16 },
861 { BFD_RELOC_OR1K_TLS_LE_SLO16, R_OR1K_TLS_LE_SLO16 },
862 { BFD_RELOC_OR1K_PCREL_PG21, R_OR1K_PCREL_PG21 },
863 { BFD_RELOC_OR1K_GOT_PG21, R_OR1K_GOT_PG21 },
864 { BFD_RELOC_OR1K_TLS_GD_PG21, R_OR1K_TLS_GD_PG21 },
865 { BFD_RELOC_OR1K_TLS_LDM_PG21, R_OR1K_TLS_LDM_PG21 },
866 { BFD_RELOC_OR1K_TLS_IE_PG21, R_OR1K_TLS_IE_PG21 },
867 { BFD_RELOC_OR1K_LO13, R_OR1K_LO13 },
868 { BFD_RELOC_OR1K_GOT_LO13, R_OR1K_GOT_LO13 },
869 { BFD_RELOC_OR1K_TLS_GD_LO13, R_OR1K_TLS_GD_LO13 },
870 { BFD_RELOC_OR1K_TLS_LDM_LO13, R_OR1K_TLS_LDM_LO13 },
871 { BFD_RELOC_OR1K_TLS_IE_LO13, R_OR1K_TLS_IE_LO13 },
872 { BFD_RELOC_OR1K_SLO13, R_OR1K_SLO13 },
873 { BFD_RELOC_OR1K_PLTA26, R_OR1K_PLTA26 },
874 };
875
876 /* tls_type is a mask used to track how each symbol is accessed,
877 it may be accessed via multiple types of TLS access methods.
878 We track this for sizing (allocating got + relocation section space) and
879 for how to process relocations. */
880 #define TLS_UNKNOWN 0
881 #define TLS_NONE 1
882 #define TLS_GD 2
883 #define TLS_LD 4
884 #define TLS_IE 8
885 #define TLS_LE 16
886
887 /* The size of the TLS thread control block, used to offset LE access. */
888 #define TCB_SIZE 16
889
890 /* ELF linker hash entry. */
891 struct elf_or1k_link_hash_entry
892 {
893 struct elf_link_hash_entry root;
894
895 /* Track type of TLS access. */
896 unsigned char tls_type;
897 };
898
899 /* ELF object data. */
900 struct elf_or1k_obj_tdata
901 {
902 struct elf_obj_tdata root;
903
904 /* tls_type for each local got entry. */
905 unsigned char *local_tls_type;
906 };
907
908 #define elf_or1k_tdata(abfd) \
909 ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
910
911 #define elf_or1k_local_tls_type(abfd) \
912 (elf_or1k_tdata (abfd)->local_tls_type)
913
914 /* ELF linker hash table. */
915 struct elf_or1k_link_hash_table
916 {
917 struct elf_link_hash_table root;
918
919 bfd_boolean saw_plta;
920 };
921
922 /* Get the ELF linker hash table from a link_info structure. */
923 #define or1k_elf_hash_table(p) \
924 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
925 == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
926
927 static bfd_boolean
928 elf_or1k_mkobject (bfd *abfd)
929 {
930 return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
931 OR1K_ELF_DATA);
932 }
933
934 /* Create an entry in an or1k ELF linker hash table. */
935
936 static struct bfd_hash_entry *
937 or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
938 struct bfd_hash_table *table,
939 const char *string)
940 {
941 struct elf_or1k_link_hash_entry *ret =
942 (struct elf_or1k_link_hash_entry *) entry;
943
944 /* Allocate the structure if it has not already been allocated by a
945 subclass. */
946 if (ret == NULL)
947 ret = bfd_hash_allocate (table,
948 sizeof (struct elf_or1k_link_hash_entry));
949 if (ret == NULL)
950 return NULL;
951
952 /* Call the allocation method of the superclass. */
953 ret = ((struct elf_or1k_link_hash_entry *)
954 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
955 table, string));
956 if (ret != NULL)
957 {
958 struct elf_or1k_link_hash_entry *eh;
959
960 eh = (struct elf_or1k_link_hash_entry *) ret;
961 eh->tls_type = TLS_UNKNOWN;
962 }
963
964 return (struct bfd_hash_entry *) ret;
965 }
966
967 /* Create an or1k ELF linker hash table. */
968
969 static struct bfd_link_hash_table *
970 or1k_elf_link_hash_table_create (bfd *abfd)
971 {
972 struct elf_or1k_link_hash_table *ret;
973 size_t amt = sizeof (struct elf_or1k_link_hash_table);
974
975 ret = bfd_zmalloc (amt);
976 if (ret == NULL)
977 return NULL;
978
979 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
980 or1k_elf_link_hash_newfunc,
981 sizeof (struct elf_or1k_link_hash_entry),
982 OR1K_ELF_DATA))
983 {
984 free (ret);
985 return NULL;
986 }
987
988 return &ret->root.root;
989 }
990
991 static reloc_howto_type *
992 or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
993 bfd_reloc_code_real_type bcode)
994 {
995 unsigned int i;
996
997 for (i = 0; i < ARRAY_SIZE (or1k_reloc_map); i++)
998 if (or1k_reloc_map[i].bfd_reloc_val == bcode)
999 {
1000 unsigned int ocode = or1k_reloc_map[i].or1k_reloc_val;
1001 if (ocode < (unsigned int) R_OR1K_max)
1002 return &or1k_elf_howto_table[ocode];
1003 else
1004 break;
1005 }
1006
1007 return NULL;
1008 }
1009
1010 static reloc_howto_type *
1011 or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1012 const char *r_name)
1013 {
1014 unsigned int i;
1015
1016 for (i = 0; i < R_OR1K_max; i++)
1017 if (or1k_elf_howto_table[i].name != NULL
1018 && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
1019 return &or1k_elf_howto_table[i];
1020
1021 return NULL;
1022 }
1023
1024 /* Set the howto pointer for an Or1k ELF reloc. */
1025
1026 static bfd_boolean
1027 or1k_info_to_howto_rela (bfd * abfd,
1028 arelent * cache_ptr,
1029 Elf_Internal_Rela * dst)
1030 {
1031 unsigned int r_type;
1032
1033 r_type = ELF32_R_TYPE (dst->r_info);
1034 if (r_type >= (unsigned int) R_OR1K_max)
1035 {
1036 /* xgettext:c-format */
1037 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1038 abfd, r_type);
1039 bfd_set_error (bfd_error_bad_value);
1040 return FALSE;
1041 }
1042 cache_ptr->howto = & or1k_elf_howto_table[r_type];
1043 return TRUE;
1044 }
1045
1046 /* Return the relocation value for @tpoff relocations.. */
1047 static bfd_vma
1048 tpoff (struct bfd_link_info *info, bfd_vma address, bfd_boolean dynamic)
1049 {
1050 struct elf_link_hash_table *htab = elf_hash_table (info);
1051 bfd_vma base;
1052
1053 /* If tls_sec is NULL, we should have signalled an error already. */
1054 if (htab->tls_sec == NULL)
1055 return 0;
1056
1057 if (dynamic)
1058 return address - htab->tls_sec->vma;
1059 else
1060 {
1061 /* On or1k, the tp points to just after the tcb, if we have an alignment
1062 greater than the tcb size we need to offset by the alignment difference. */
1063 base = align_power ((bfd_vma) TCB_SIZE, htab->tls_sec->alignment_power)
1064 - TCB_SIZE;
1065
1066 /* The thread pointer on or1k stores the address after the TCB where
1067 the data is, just compute the difference. No need to compensate
1068 for the size of TCB. */
1069 return address - htab->tls_sec->vma + base;
1070 }
1071 }
1072
1073 /* If we have both IE and GD accesses to a symbol the IE relocations should be
1074 offset by 8 bytes because the got contains both GD and IE entries. */
1075 static bfd_vma
1076 or1k_initial_exec_offset (reloc_howto_type *howto, unsigned char tls_type_mask)
1077 {
1078 switch (howto->type)
1079 {
1080 case R_OR1K_TLS_IE_HI16:
1081 case R_OR1K_TLS_IE_LO16:
1082 case R_OR1K_TLS_IE_PG21:
1083 case R_OR1K_TLS_IE_LO13:
1084 case R_OR1K_TLS_IE_AHI16:
1085 return (tls_type_mask & TLS_GD) != 0 ? 8 : 0;
1086 default:
1087 return 0;
1088 }
1089 }
1090
1091 /* Like _bfd_final_link_relocate, but handles non-contiguous fields. */
1092
1093 static bfd_reloc_status_type
1094 or1k_final_link_relocate (reloc_howto_type *howto, bfd *input_bfd,
1095 asection *input_section, bfd_byte *contents,
1096 bfd_vma offset, bfd_vma value)
1097 {
1098 bfd_reloc_status_type status = bfd_reloc_ok;
1099 int size = bfd_get_reloc_size (howto);
1100 bfd_vma x, place;
1101
1102 /* Sanity check the address. */
1103 if (offset + size > bfd_get_section_limit_octets (input_bfd, input_section))
1104 return bfd_reloc_outofrange;
1105
1106 place = (input_section->output_section->vma
1107 + input_section->output_offset
1108 + (howto->pcrel_offset ? offset : 0));
1109
1110 switch (howto->type)
1111 {
1112 case R_OR1K_AHI16:
1113 case R_OR1K_GOTOFF_AHI16:
1114 case R_OR1K_TLS_IE_AHI16:
1115 case R_OR1K_TLS_LE_AHI16:
1116 /* Adjust the operand to match with a signed LO16. */
1117 value += 0x8000;
1118 break;
1119
1120 case R_OR1K_INSN_REL_26:
1121 value -= place;
1122 /* Diagnose mis-aligned branch targets. */
1123 if (value & 3)
1124 status = bfd_reloc_dangerous;
1125 break;
1126
1127 case R_OR1K_PCREL_PG21:
1128 case R_OR1K_GOT_PG21:
1129 case R_OR1K_TLS_GD_PG21:
1130 case R_OR1K_TLS_LDM_PG21:
1131 case R_OR1K_TLS_IE_PG21:
1132 value = (value & -8192) - (place & -8192);
1133 break;
1134
1135 case R_OR1K_LO13:
1136 case R_OR1K_GOT_LO13:
1137 case R_OR1K_TLS_GD_LO13:
1138 case R_OR1K_TLS_LDM_LO13:
1139 case R_OR1K_TLS_IE_LO13:
1140 case R_OR1K_SLO13:
1141 value &= 8191;
1142 break;
1143
1144 default:
1145 if (howto->pc_relative)
1146 value -= place;
1147 break;
1148 }
1149
1150 status = bfd_check_overflow (howto->complain_on_overflow,
1151 howto->bitsize,
1152 howto->rightshift,
1153 bfd_arch_bits_per_address (input_bfd),
1154 value);
1155 value >>= howto->rightshift;
1156
1157 /* If we're overwriting the entire destination,
1158 then no need to read the current contents. */
1159 if (size == 0 || howto->dst_mask == N_ONES (size))
1160 x = 0;
1161 else
1162 {
1163 BFD_ASSERT (size == 4);
1164 x = bfd_get_32 (input_bfd, contents + offset);
1165 }
1166
1167 switch (howto->type)
1168 {
1169 case R_OR1K_SLO16:
1170 case R_OR1K_GOTOFF_SLO16:
1171 case R_OR1K_TLS_LE_SLO16:
1172 case R_OR1K_SLO13:
1173 /* The split imm16 field used for stores. */
1174 x = (x & ~0x3e007ff) | ((value & 0xf800) << 10) | (value & 0x7ff);
1175 break;
1176
1177 default:
1178 {
1179 bfd_vma fieldmask = howto->dst_mask;
1180 value <<= howto->bitpos;
1181 x = (x & ~fieldmask) | (value & fieldmask);
1182 }
1183 break;
1184 }
1185
1186 /* Put the relocated value back in the object file. */
1187 switch (size)
1188 {
1189 case 0:
1190 break;
1191 case 1:
1192 bfd_put_8 (input_bfd, x, contents + offset);
1193 break;
1194 case 2:
1195 bfd_put_16 (input_bfd, x, contents + offset);
1196 break;
1197 case 4:
1198 bfd_put_32 (input_bfd, x, contents + offset);
1199 break;
1200 #ifdef BFD64
1201 case 8:
1202 bfd_put_64 (input_bfd, x, contents + offset);
1203 break;
1204 #endif
1205 default:
1206 _bfd_error_handler
1207 (_("%pB: Cannot handle relocation value size of %d"),
1208 input_bfd, size);
1209 abort ();
1210 }
1211 return status;
1212 }
1213
1214 /* Relocate an Or1k ELF section.
1215
1216 The RELOCATE_SECTION function is called by the new ELF backend linker
1217 to handle the relocations for a section.
1218
1219 The relocs are always passed as Rela structures; if the section
1220 actually uses Rel structures, the r_addend field will always be
1221 zero.
1222
1223 This function is responsible for adjusting the section contents as
1224 necessary, and (if using Rela relocs and generating a relocatable
1225 output file) adjusting the reloc addend as necessary.
1226
1227 This function does not have to worry about setting the reloc
1228 address or the reloc symbol index.
1229
1230 LOCAL_SYMS is a pointer to the swapped in local symbols.
1231
1232 LOCAL_SECTIONS is an array giving the section in the input file
1233 corresponding to the st_shndx field of each local symbol.
1234
1235 The global hash table entry for the global symbols can be found
1236 via elf_sym_hashes (input_bfd).
1237
1238 When generating relocatable output, this function must handle
1239 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1240 going to be the section symbol corresponding to the output
1241 section, which means that the addend must be adjusted
1242 accordingly. */
1243
1244 static bfd_boolean
1245 or1k_elf_relocate_section (bfd *output_bfd,
1246 struct bfd_link_info *info,
1247 bfd *input_bfd,
1248 asection *input_section,
1249 bfd_byte *contents,
1250 Elf_Internal_Rela *relocs,
1251 Elf_Internal_Sym *local_syms,
1252 asection **local_sections)
1253 {
1254 Elf_Internal_Shdr *symtab_hdr;
1255 struct elf_link_hash_entry **sym_hashes;
1256 Elf_Internal_Rela *rel;
1257 Elf_Internal_Rela *relend;
1258 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
1259 asection *sreloc;
1260 bfd_vma *local_got_offsets;
1261 asection *sgot, *splt;
1262 bfd_vma plt_base, got_base, got_sym_value;
1263 bfd_boolean ret_val = TRUE;
1264
1265 if (htab == NULL)
1266 return FALSE;
1267
1268 local_got_offsets = elf_local_got_offsets (input_bfd);
1269
1270 sreloc = elf_section_data (input_section)->sreloc;
1271
1272 splt = htab->root.splt;
1273 plt_base = 0;
1274 if (splt != NULL)
1275 plt_base = splt->output_section->vma + splt->output_offset;
1276
1277 sgot = htab->root.sgot;
1278 got_sym_value = got_base = 0;
1279 if (sgot != NULL)
1280 {
1281 struct elf_link_hash_entry *hgot = htab->root.hgot;
1282 got_sym_value = (hgot->root.u.def.value
1283 + hgot->root.u.def.section->output_section->vma
1284 + hgot->root.u.def.section->output_offset);
1285 got_base = sgot->output_section->vma + sgot->output_offset;
1286 }
1287
1288 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
1289 sym_hashes = elf_sym_hashes (input_bfd);
1290 relend = relocs + input_section->reloc_count;
1291
1292 for (rel = relocs; rel < relend; rel++)
1293 {
1294 reloc_howto_type *howto;
1295 unsigned long r_symndx;
1296 Elf_Internal_Sym *sym;
1297 asection *sec;
1298 struct elf_link_hash_entry *h;
1299 bfd_vma relocation;
1300 bfd_reloc_status_type r;
1301 const char *name = NULL;
1302 int r_type;
1303
1304 r_type = ELF32_R_TYPE (rel->r_info);
1305 r_symndx = ELF32_R_SYM (rel->r_info);
1306
1307 if (r_type == R_OR1K_GNU_VTINHERIT
1308 || r_type == R_OR1K_GNU_VTENTRY)
1309 continue;
1310
1311 if (r_type < 0 || r_type >= (int) R_OR1K_max)
1312 {
1313 _bfd_error_handler
1314 (_("%pB: unknown relocation type %d"),
1315 input_bfd, (int) r_type);
1316 bfd_set_error (bfd_error_bad_value);
1317 ret_val = FALSE;
1318 continue;
1319 }
1320
1321 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
1322 h = NULL;
1323 sym = NULL;
1324 sec = NULL;
1325
1326 if (r_symndx < symtab_hdr->sh_info)
1327 {
1328 sym = local_syms + r_symndx;
1329 sec = local_sections[r_symndx];
1330 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1331
1332 name = bfd_elf_string_from_elf_section
1333 (input_bfd, symtab_hdr->sh_link, sym->st_name);
1334 name = name == NULL ? bfd_section_name (sec) : name;
1335 }
1336 else
1337 {
1338 bfd_boolean unresolved_reloc, warned, ignored;
1339
1340 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1341 r_symndx, symtab_hdr, sym_hashes,
1342 h, sec, relocation,
1343 unresolved_reloc, warned, ignored);
1344 name = h->root.root.string;
1345 }
1346
1347 if (sec != NULL && discarded_section (sec))
1348 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
1349 rel, 1, relend, howto, 0, contents);
1350
1351 if (bfd_link_relocatable (info))
1352 continue;
1353
1354 switch (howto->type)
1355 {
1356 case R_OR1K_PLT26:
1357 case R_OR1K_PLTA26:
1358 /* If the call is not local, redirect the branch to the PLT.
1359 Otherwise do nothing to send the branch to the symbol direct. */
1360 if (!SYMBOL_CALLS_LOCAL (info, h)
1361 && h->plt.offset != (bfd_vma) -1)
1362 relocation = plt_base + h->plt.offset;
1363
1364 /* Addend should be zero. */
1365 if (rel->r_addend != 0)
1366 {
1367 _bfd_error_handler
1368 (_("%pB: addend should be zero for plt relocations"),
1369 input_bfd);
1370 bfd_set_error (bfd_error_bad_value);
1371 ret_val = FALSE;
1372 }
1373 break;
1374
1375 case R_OR1K_GOT16:
1376 case R_OR1K_GOT_PG21:
1377 case R_OR1K_GOT_LO13:
1378 {
1379 bfd_vma off;
1380
1381 /* Relocation is to the entry for this symbol
1382 in the global offset table. */
1383 BFD_ASSERT (sgot != NULL);
1384 if (h != NULL)
1385 {
1386 bfd_boolean dyn;
1387
1388 off = h->got.offset;
1389 BFD_ASSERT (off != (bfd_vma) -1);
1390
1391 dyn = htab->root.dynamic_sections_created;
1392 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
1393 bfd_link_pic (info),
1394 h)
1395 || (bfd_link_pic (info)
1396 && SYMBOL_REFERENCES_LOCAL (info, h)))
1397 {
1398 /* This is actually a static link, or it is a -Bsymbolic
1399 link and the symbol is defined locally, or the symbol
1400 was forced to be local because of a version file.
1401 We must initialize this entry in the GOT. Since the
1402 offset must always be a multiple of 4, we use the least
1403 significant bit to record whether we have initialized
1404 it already.
1405
1406 When doing a dynamic link, we create a .rela.got
1407 relocation entry to initialize the value. This
1408 is done in the finish_dynamic_symbol routine. */
1409 if ((off & 1) != 0)
1410 off &= ~1;
1411 else
1412 {
1413 /* Write entry in GOT. */
1414 bfd_put_32 (output_bfd, relocation,
1415 sgot->contents + off);
1416 /* Mark GOT entry as having been written. */
1417 h->got.offset |= 1;
1418 }
1419 }
1420 }
1421 else
1422 {
1423 bfd_byte *loc;
1424
1425 BFD_ASSERT (local_got_offsets != NULL
1426 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1427
1428 /* Get offset into GOT table. */
1429 off = local_got_offsets[r_symndx];
1430
1431 /* The offset must always be a multiple of 4. We use
1432 the least significant bit to record whether we have
1433 already processed this entry. */
1434 if ((off & 1) != 0)
1435 off &= ~1;
1436 else
1437 {
1438 /* Write entry in GOT. */
1439 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1440 if (bfd_link_pic (info))
1441 {
1442 asection *srelgot;
1443 Elf_Internal_Rela outrel;
1444
1445 /* We need to generate a R_OR1K_RELATIVE reloc
1446 for the dynamic linker. */
1447 srelgot = htab->root.srelgot;
1448 BFD_ASSERT (srelgot != NULL);
1449
1450 outrel.r_offset = got_base + off;
1451 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1452 outrel.r_addend = relocation;
1453 loc = srelgot->contents;
1454 loc += (srelgot->reloc_count
1455 * sizeof (Elf32_External_Rela));
1456 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1457 ++srelgot->reloc_count;
1458 }
1459 local_got_offsets[r_symndx] |= 1;
1460 }
1461 }
1462
1463 /* The GOT_PG21 and GOT_LO13 relocs are pc-relative,
1464 while the GOT16 reloc is GOT relative. */
1465 relocation = got_base + off;
1466 if (r_type == R_OR1K_GOT16)
1467 relocation -= got_sym_value;
1468
1469 /* Addend should be zero. */
1470 if (rel->r_addend != 0)
1471 {
1472 _bfd_error_handler
1473 (_("%pB: addend should be zero for got relocations"),
1474 input_bfd);
1475 bfd_set_error (bfd_error_bad_value);
1476 ret_val = FALSE;
1477 }
1478 }
1479 break;
1480
1481 case R_OR1K_GOTOFF_LO16:
1482 case R_OR1K_GOTOFF_HI16:
1483 case R_OR1K_GOTOFF_AHI16:
1484 case R_OR1K_GOTOFF_SLO16:
1485 /* Relocation is offset from GOT. */
1486 BFD_ASSERT (sgot != NULL);
1487 if (!SYMBOL_REFERENCES_LOCAL (info, h))
1488 {
1489 _bfd_error_handler
1490 (_("%pB: gotoff relocation against dynamic symbol %s"),
1491 input_bfd, h->root.root.string);
1492 ret_val = FALSE;
1493 bfd_set_error (bfd_error_bad_value);
1494 }
1495 relocation -= got_sym_value;
1496 break;
1497
1498 case R_OR1K_INSN_REL_26:
1499 case R_OR1K_PCREL_PG21:
1500 case R_OR1K_LO13:
1501 case R_OR1K_SLO13:
1502 /* For a non-shared link, these will reference either the plt
1503 or a .dynbss copy of the symbol. */
1504 if (bfd_link_pic (info) && !SYMBOL_REFERENCES_LOCAL (info, h))
1505 {
1506 _bfd_error_handler
1507 (_("%pB: pc-relative relocation against dynamic symbol %s"),
1508 input_bfd, name);
1509 ret_val = FALSE;
1510 bfd_set_error (bfd_error_bad_value);
1511 }
1512 break;
1513
1514 case R_OR1K_HI_16_IN_INSN:
1515 case R_OR1K_LO_16_IN_INSN:
1516 case R_OR1K_AHI16:
1517 case R_OR1K_SLO16:
1518 if (bfd_link_pic (info))
1519 {
1520 _bfd_error_handler
1521 (_("%pB: non-pic relocation against symbol %s"),
1522 input_bfd, name);
1523 ret_val = FALSE;
1524 bfd_set_error (bfd_error_bad_value);
1525 }
1526 break;
1527
1528 case R_OR1K_32:
1529 /* R_OR1K_16? */
1530 {
1531 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
1532 from removed linkonce sections, or sections discarded by
1533 a linker script. */
1534 if (r_symndx == STN_UNDEF
1535 || (input_section->flags & SEC_ALLOC) == 0)
1536 break;
1537
1538 /* Emit a direct relocation if the symbol is dynamic,
1539 or a RELATIVE reloc for shared objects. We can omit
1540 RELATIVE relocs to local undefweak symbols. */
1541 if (bfd_link_pic (info)
1542 ? (h == NULL
1543 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1544 || h->root.type != bfd_link_hash_undefweak)
1545 : (h != NULL
1546 && h->dynindx != -1
1547 && !h->non_got_ref
1548 && ((h->def_dynamic && !h->def_regular)
1549 || h->root.type == bfd_link_hash_undefweak
1550 || h->root.type == bfd_link_hash_undefined)))
1551 {
1552 Elf_Internal_Rela outrel;
1553 bfd_byte *loc;
1554 bfd_boolean skip;
1555
1556 /* When generating a shared object, these relocations
1557 are copied into the output file to be resolved at run
1558 time. */
1559
1560 BFD_ASSERT (sreloc != NULL);
1561
1562 skip = FALSE;
1563
1564 outrel.r_offset =
1565 _bfd_elf_section_offset (output_bfd, info, input_section,
1566 rel->r_offset);
1567 if (outrel.r_offset == (bfd_vma) -1)
1568 skip = TRUE;
1569 else if (outrel.r_offset == (bfd_vma) -2)
1570 skip = TRUE;
1571 outrel.r_offset += (input_section->output_section->vma
1572 + input_section->output_offset);
1573
1574 if (skip)
1575 memset (&outrel, 0, sizeof outrel);
1576 else if (SYMBOL_REFERENCES_LOCAL (info, h))
1577 {
1578 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1579 outrel.r_addend = relocation + rel->r_addend;
1580 }
1581 else
1582 {
1583 BFD_ASSERT (h->dynindx != -1);
1584 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1585 outrel.r_addend = rel->r_addend;
1586 }
1587
1588 loc = sreloc->contents;
1589 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1590 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1591 break;
1592 }
1593 break;
1594 }
1595
1596 case R_OR1K_TLS_LDM_HI16:
1597 case R_OR1K_TLS_LDM_LO16:
1598 case R_OR1K_TLS_LDM_PG21:
1599 case R_OR1K_TLS_LDM_LO13:
1600 case R_OR1K_TLS_LDO_HI16:
1601 case R_OR1K_TLS_LDO_LO16:
1602 /* TODO: implement support for local dynamic. */
1603 BFD_FAIL ();
1604 _bfd_error_handler
1605 (_("%pB: support for local dynamic not implemented"),
1606 input_bfd);
1607 bfd_set_error (bfd_error_bad_value);
1608 return FALSE;
1609
1610 case R_OR1K_TLS_GD_HI16:
1611 case R_OR1K_TLS_GD_LO16:
1612 case R_OR1K_TLS_GD_PG21:
1613 case R_OR1K_TLS_GD_LO13:
1614 case R_OR1K_TLS_IE_HI16:
1615 case R_OR1K_TLS_IE_LO16:
1616 case R_OR1K_TLS_IE_PG21:
1617 case R_OR1K_TLS_IE_LO13:
1618 case R_OR1K_TLS_IE_AHI16:
1619 {
1620 bfd_vma gotoff;
1621 Elf_Internal_Rela rela;
1622 asection *srelgot;
1623 bfd_byte *loc;
1624 bfd_boolean dynamic;
1625 int indx = 0;
1626 unsigned char tls_type;
1627
1628 srelgot = htab->root.srelgot;
1629
1630 /* Mark as TLS related GOT entry by setting
1631 bit 2 to indcate TLS and bit 1 to indicate GOT. */
1632 if (h != NULL)
1633 {
1634 gotoff = h->got.offset;
1635 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
1636 h->got.offset |= 3;
1637 }
1638 else
1639 {
1640 unsigned char *local_tls_type;
1641
1642 gotoff = local_got_offsets[r_symndx];
1643 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (input_bfd);
1644 tls_type = local_tls_type == NULL ? TLS_NONE
1645 : local_tls_type[r_symndx];
1646 local_got_offsets[r_symndx] |= 3;
1647 }
1648
1649 /* Only process the relocation once. */
1650 if ((gotoff & 1) != 0)
1651 {
1652 gotoff += or1k_initial_exec_offset (howto, tls_type);
1653
1654 /* The PG21 and LO13 relocs are pc-relative, while the
1655 rest are GOT relative. */
1656 relocation = got_base + (gotoff & ~3);
1657 if (!(r_type == R_OR1K_TLS_GD_PG21
1658 || r_type == R_OR1K_TLS_GD_LO13
1659 || r_type == R_OR1K_TLS_IE_PG21
1660 || r_type == R_OR1K_TLS_IE_LO13))
1661 relocation -= got_sym_value;
1662 break;
1663 }
1664
1665 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1666 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1667
1668 if (h != NULL)
1669 {
1670 bfd_boolean dyn = htab->root.dynamic_sections_created;
1671 bfd_boolean pic = bfd_link_pic (info);
1672
1673 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, pic, h)
1674 && (!pic || !SYMBOL_REFERENCES_LOCAL (info, h)))
1675 indx = h->dynindx;
1676 }
1677
1678 /* Dynamic entries will require relocations. If we do not need
1679 them we will just use the default R_OR1K_NONE and
1680 not set anything. */
1681 dynamic = (bfd_link_pic (info) || indx != 0)
1682 && (h == NULL
1683 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1684 || h->root.type != bfd_link_hash_undefweak);
1685
1686 /* Shared GD. */
1687 if (dynamic && ((tls_type & TLS_GD) != 0))
1688 {
1689 int i;
1690
1691 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1692 for (i = 0; i < 2; ++i)
1693 {
1694 BFD_ASSERT (srelgot->contents != NULL);
1695
1696 rela.r_offset = got_base + gotoff + i*4;
1697 if (h != NULL && h->dynindx != -1)
1698 {
1699 rela.r_info = ELF32_R_INFO (h->dynindx,
1700 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1701 rela.r_addend = 0;
1702 }
1703 else
1704 {
1705 rela.r_info = ELF32_R_INFO (0,
1706 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1707 rela.r_addend =
1708 (i == 0 ? 0 : tpoff (info, relocation, dynamic));
1709 }
1710
1711 loc = srelgot->contents;
1712 loc += (srelgot->reloc_count++
1713 * sizeof (Elf32_External_Rela));
1714
1715 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1716 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1717 }
1718 }
1719 /* Static GD. */
1720 else if ((tls_type & TLS_GD) != 0)
1721 {
1722 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1723 bfd_put_32 (output_bfd, tpoff (info, relocation, dynamic),
1724 sgot->contents + gotoff + 4);
1725 }
1726
1727 gotoff += or1k_initial_exec_offset (howto, tls_type);
1728
1729 /* Shared IE. */
1730 if (dynamic && ((tls_type & TLS_IE) != 0))
1731 {
1732 BFD_ASSERT (srelgot->contents != NULL);
1733
1734 /* Add TPOFF GOT and rela entries. */
1735 rela.r_offset = got_base + gotoff;
1736 if (h != NULL && h->dynindx != -1)
1737 {
1738 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1739 rela.r_addend = 0;
1740 }
1741 else
1742 {
1743 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1744 rela.r_addend = tpoff (info, relocation, dynamic);
1745 }
1746
1747 loc = srelgot->contents;
1748 loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
1749
1750 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1751 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1752 }
1753 /* Static IE. */
1754 else if ((tls_type & TLS_IE) != 0)
1755 bfd_put_32 (output_bfd, tpoff (info, relocation, dynamic),
1756 sgot->contents + gotoff);
1757
1758 /* The PG21 and LO13 relocs are pc-relative, while the
1759 rest are GOT relative. */
1760 relocation = got_base + gotoff;
1761 if (!(r_type == R_OR1K_TLS_GD_PG21
1762 || r_type == R_OR1K_TLS_GD_LO13
1763 || r_type == R_OR1K_TLS_IE_PG21
1764 || r_type == R_OR1K_TLS_IE_LO13))
1765 relocation -= got_sym_value;
1766 }
1767 break;
1768
1769 case R_OR1K_TLS_LE_HI16:
1770 case R_OR1K_TLS_LE_LO16:
1771 case R_OR1K_TLS_LE_AHI16:
1772 case R_OR1K_TLS_LE_SLO16:
1773 /* Relocation is offset from TP. */
1774 relocation = tpoff (info, relocation, 0);
1775 break;
1776
1777 case R_OR1K_TLS_DTPMOD:
1778 case R_OR1K_TLS_DTPOFF:
1779 case R_OR1K_TLS_TPOFF:
1780 /* These are resolved dynamically on load and shouldn't
1781 be used as linker input. */
1782 BFD_FAIL ();
1783 _bfd_error_handler
1784 (_("%pB: will not resolve runtime TLS relocation"),
1785 input_bfd);
1786 bfd_set_error (bfd_error_bad_value);
1787 return FALSE;
1788
1789 default:
1790 break;
1791 }
1792
1793 r = or1k_final_link_relocate (howto, input_bfd, input_section, contents,
1794 rel->r_offset, relocation + rel->r_addend);
1795
1796 if (r != bfd_reloc_ok)
1797 {
1798 const char *msg = NULL;
1799
1800 switch (r)
1801 {
1802 case bfd_reloc_overflow:
1803 (*info->callbacks->reloc_overflow)
1804 (info, (h ? &h->root : NULL), name, howto->name,
1805 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1806 break;
1807
1808 case bfd_reloc_undefined:
1809 (*info->callbacks->undefined_symbol)
1810 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1811 break;
1812
1813 case bfd_reloc_outofrange:
1814 msg = _("internal error: out of range error");
1815 break;
1816
1817 case bfd_reloc_notsupported:
1818 msg = _("internal error: unsupported relocation error");
1819 break;
1820
1821 case bfd_reloc_dangerous:
1822 msg = _("internal error: dangerous relocation");
1823 break;
1824
1825 default:
1826 msg = _("internal error: unknown error");
1827 break;
1828 }
1829
1830 if (msg)
1831 (*info->callbacks->warning) (info, msg, name, input_bfd,
1832 input_section, rel->r_offset);
1833 }
1834 }
1835
1836 return ret_val;
1837 }
1838
1839 /* Return the section that should be marked against GC for a given
1840 relocation. */
1841
1842 static asection *
1843 or1k_elf_gc_mark_hook (asection *sec,
1844 struct bfd_link_info *info,
1845 Elf_Internal_Rela *rel,
1846 struct elf_link_hash_entry *h,
1847 Elf_Internal_Sym *sym)
1848 {
1849 if (h != NULL)
1850 switch (ELF32_R_TYPE (rel->r_info))
1851 {
1852 case R_OR1K_GNU_VTINHERIT:
1853 case R_OR1K_GNU_VTENTRY:
1854 return NULL;
1855 }
1856
1857 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1858 }
1859
1860 /* Look through the relocs for a section during the first phase. */
1861
1862 static bfd_boolean
1863 or1k_elf_check_relocs (bfd *abfd,
1864 struct bfd_link_info *info,
1865 asection *sec,
1866 const Elf_Internal_Rela *relocs)
1867 {
1868 Elf_Internal_Shdr *symtab_hdr;
1869 struct elf_link_hash_entry **sym_hashes;
1870 const Elf_Internal_Rela *rel;
1871
1872 const Elf_Internal_Rela *rel_end;
1873 struct elf_or1k_link_hash_table *htab;
1874 bfd *dynobj;
1875 asection *sreloc = NULL;
1876
1877 if (bfd_link_relocatable (info))
1878 return TRUE;
1879
1880 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1881 sym_hashes = elf_sym_hashes (abfd);
1882
1883 htab = or1k_elf_hash_table (info);
1884 if (htab == NULL)
1885 return FALSE;
1886
1887 dynobj = htab->root.dynobj;
1888
1889 rel_end = relocs + sec->reloc_count;
1890 for (rel = relocs; rel < rel_end; rel++)
1891 {
1892 struct elf_link_hash_entry *h;
1893 unsigned long r_symndx;
1894 unsigned char tls_type;
1895 int r_type;
1896
1897 r_symndx = ELF32_R_SYM (rel->r_info);
1898 if (r_symndx < symtab_hdr->sh_info)
1899 h = NULL;
1900 else
1901 {
1902 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1903 while (h->root.type == bfd_link_hash_indirect
1904 || h->root.type == bfd_link_hash_warning)
1905 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1906 }
1907
1908 r_type = ELF32_R_TYPE (rel->r_info);
1909 switch (r_type)
1910 {
1911 case R_OR1K_TLS_GD_HI16:
1912 case R_OR1K_TLS_GD_LO16:
1913 case R_OR1K_TLS_GD_PG21:
1914 case R_OR1K_TLS_GD_LO13:
1915 tls_type = TLS_GD;
1916 break;
1917 case R_OR1K_TLS_LDM_HI16:
1918 case R_OR1K_TLS_LDM_LO16:
1919 case R_OR1K_TLS_LDM_PG21:
1920 case R_OR1K_TLS_LDM_LO13:
1921 case R_OR1K_TLS_LDO_HI16:
1922 case R_OR1K_TLS_LDO_LO16:
1923 tls_type = TLS_LD;
1924 break;
1925 case R_OR1K_TLS_IE_HI16:
1926 case R_OR1K_TLS_IE_LO16:
1927 case R_OR1K_TLS_IE_PG21:
1928 case R_OR1K_TLS_IE_LO13:
1929 case R_OR1K_TLS_IE_AHI16:
1930 tls_type = TLS_IE;
1931 break;
1932 case R_OR1K_TLS_LE_HI16:
1933 case R_OR1K_TLS_LE_LO16:
1934 case R_OR1K_TLS_LE_AHI16:
1935 case R_OR1K_TLS_LE_SLO16:
1936 tls_type = TLS_LE;
1937 break;
1938 default:
1939 tls_type = TLS_NONE;
1940 }
1941
1942 /* Record TLS type. */
1943 if (h != NULL)
1944 ((struct elf_or1k_link_hash_entry *) h)->tls_type |= tls_type;
1945 else
1946 {
1947 unsigned char *local_tls_type;
1948
1949 /* This is a TLS type record for a local symbol. */
1950 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1951 if (local_tls_type == NULL)
1952 {
1953 bfd_size_type size;
1954
1955 size = symtab_hdr->sh_info;
1956 local_tls_type = bfd_zalloc (abfd, size);
1957 if (local_tls_type == NULL)
1958 return FALSE;
1959 elf_or1k_local_tls_type (abfd) = local_tls_type;
1960 }
1961 local_tls_type[r_symndx] |= tls_type;
1962 }
1963
1964 switch (r_type)
1965 {
1966 /* This relocation describes the C++ object vtable hierarchy.
1967 Reconstruct it for later use during GC. */
1968 case R_OR1K_GNU_VTINHERIT:
1969 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1970 return FALSE;
1971 break;
1972
1973 /* This relocation describes which C++ vtable entries are actually
1974 used. Record for later use during GC. */
1975 case R_OR1K_GNU_VTENTRY:
1976 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1977 return FALSE;
1978 break;
1979
1980 /* This relocation requires .plt entry. */
1981 case R_OR1K_PLTA26:
1982 htab->saw_plta = TRUE;
1983 /* FALLTHRU */
1984 case R_OR1K_PLT26:
1985 if (h != NULL)
1986 {
1987 h->needs_plt = 1;
1988 h->plt.refcount += 1;
1989 }
1990 break;
1991
1992 case R_OR1K_GOT16:
1993 case R_OR1K_GOT_PG21:
1994 case R_OR1K_GOT_LO13:
1995 case R_OR1K_TLS_GD_HI16:
1996 case R_OR1K_TLS_GD_LO16:
1997 case R_OR1K_TLS_GD_PG21:
1998 case R_OR1K_TLS_GD_LO13:
1999 case R_OR1K_TLS_IE_HI16:
2000 case R_OR1K_TLS_IE_LO16:
2001 case R_OR1K_TLS_IE_PG21:
2002 case R_OR1K_TLS_IE_LO13:
2003 case R_OR1K_TLS_IE_AHI16:
2004 if (h != NULL)
2005 h->got.refcount += 1;
2006 else
2007 {
2008 bfd_signed_vma *local_got_refcounts;
2009
2010 /* This is a global offset table entry for a local symbol. */
2011 local_got_refcounts = elf_local_got_refcounts (abfd);
2012 if (local_got_refcounts == NULL)
2013 {
2014 bfd_size_type size;
2015
2016 size = symtab_hdr->sh_info;
2017 size *= sizeof (bfd_signed_vma);
2018 local_got_refcounts = bfd_zalloc (abfd, size);
2019 if (local_got_refcounts == NULL)
2020 return FALSE;
2021 elf_local_got_refcounts (abfd) = local_got_refcounts;
2022 }
2023 local_got_refcounts[r_symndx] += 1;
2024 }
2025 /* FALLTHRU */
2026
2027 case R_OR1K_GOTOFF_HI16:
2028 case R_OR1K_GOTOFF_LO16:
2029 case R_OR1K_GOTOFF_AHI16:
2030 case R_OR1K_GOTOFF_SLO16:
2031 if (htab->root.sgot == NULL)
2032 {
2033 if (dynobj == NULL)
2034 htab->root.dynobj = dynobj = abfd;
2035 if (!_bfd_elf_create_got_section (dynobj, info))
2036 return FALSE;
2037 }
2038 break;
2039
2040 case R_OR1K_INSN_REL_26:
2041 case R_OR1K_HI_16_IN_INSN:
2042 case R_OR1K_LO_16_IN_INSN:
2043 case R_OR1K_AHI16:
2044 case R_OR1K_SLO16:
2045 case R_OR1K_32:
2046 case R_OR1K_PCREL_PG21:
2047 case R_OR1K_LO13:
2048 case R_OR1K_SLO13:
2049 {
2050 if (h != NULL && !bfd_link_pic (info))
2051 {
2052 /* We may need a copy reloc. */
2053 h->non_got_ref = 1;
2054
2055 /* We may also need a .plt entry. */
2056 h->plt.refcount += 1;
2057 if (r_type != R_OR1K_INSN_REL_26)
2058 h->pointer_equality_needed = 1;
2059 }
2060
2061 /* If we are creating a shared library, and this is a reloc
2062 against a global symbol, or a non PC relative reloc
2063 against a local symbol, then we need to copy the reloc
2064 into the shared library. However, if we are linking with
2065 -Bsymbolic, we do not need to copy a reloc against a
2066 global symbol which is defined in an object we are
2067 including in the link (i.e., DEF_REGULAR is set). At
2068 this point we have not seen all the input files, so it is
2069 possible that DEF_REGULAR is not set now but will be set
2070 later (it is never cleared). In case of a weak definition,
2071 DEF_REGULAR may be cleared later by a strong definition in
2072 a shared library. We account for that possibility below by
2073 storing information in the relocs_copied field of the hash
2074 table entry. A similar situation occurs when creating
2075 shared libraries and symbol visibility changes render the
2076 symbol local.
2077
2078 If on the other hand, we are creating an executable, we
2079 may need to keep relocations for symbols satisfied by a
2080 dynamic library if we manage to avoid copy relocs for the
2081 symbol. */
2082
2083 if ((bfd_link_pic (info)
2084 && (sec->flags & SEC_ALLOC) != 0
2085 && (r_type != R_OR1K_INSN_REL_26
2086 || (h != NULL
2087 && (!SYMBOLIC_BIND (info, h)
2088 || h->root.type == bfd_link_hash_defweak
2089 || !h->def_regular))))
2090 || (!bfd_link_pic (info)
2091 && (sec->flags & SEC_ALLOC) != 0
2092 && h != NULL
2093 && (h->root.type == bfd_link_hash_defweak
2094 || !h->def_regular)))
2095 {
2096 struct elf_dyn_relocs *sec_relocs;
2097 struct elf_dyn_relocs **head;
2098
2099 /* When creating a shared object, we must copy these
2100 relocs into the output file. We create a reloc
2101 section in dynobj and make room for the reloc. */
2102 if (sreloc == NULL)
2103 {
2104 const char *name;
2105 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
2106 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
2107
2108 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
2109 if (name == NULL)
2110 return FALSE;
2111
2112 if (strncmp (name, ".rela", 5) != 0
2113 || strcmp (bfd_section_name (sec), name + 5) != 0)
2114 {
2115 _bfd_error_handler
2116 /* xgettext:c-format */
2117 (_("%pB: bad relocation section name `%s\'"),
2118 abfd, name);
2119 }
2120
2121 if (htab->root.dynobj == NULL)
2122 htab->root.dynobj = abfd;
2123 dynobj = htab->root.dynobj;
2124
2125 sreloc = bfd_get_section_by_name (dynobj, name);
2126 if (sreloc == NULL)
2127 {
2128 sreloc = _bfd_elf_make_dynamic_reloc_section
2129 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
2130
2131 if (sreloc == NULL)
2132 return FALSE;
2133 }
2134 elf_section_data (sec)->sreloc = sreloc;
2135 }
2136
2137 /* If this is a global symbol, we count the number of
2138 relocations we need for this symbol. */
2139 if (h != NULL)
2140 head = &h->dyn_relocs;
2141 else
2142 {
2143 /* Track dynamic relocs needed for local syms too.
2144 We really need local syms available to do this
2145 easily. Oh well. */
2146
2147 asection *s;
2148 Elf_Internal_Sym *isym;
2149 void *vpp;
2150
2151 isym = bfd_sym_from_r_symndx (&htab->root.sym_cache,
2152 abfd, r_symndx);
2153 if (isym == NULL)
2154 return FALSE;
2155
2156 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2157 if (s == NULL)
2158 return FALSE;
2159
2160 vpp = &elf_section_data (s)->local_dynrel;
2161 head = (struct elf_dyn_relocs **) vpp;
2162 }
2163
2164 sec_relocs = *head;
2165 /* Allocate this sections dynamic reolcations structure if this
2166 is a new section. */
2167 if (sec_relocs == NULL || sec_relocs->sec != sec)
2168 {
2169 size_t amt = sizeof *sec_relocs;
2170 sec_relocs = ((struct elf_dyn_relocs *)
2171 bfd_alloc (htab->root.dynobj, amt));
2172 if (sec_relocs == NULL)
2173 return FALSE;
2174 sec_relocs->next = *head;
2175 *head = sec_relocs;
2176 sec_relocs->sec = sec;
2177 sec_relocs->count = 0;
2178 sec_relocs->pc_count = 0;
2179 }
2180
2181 sec_relocs->count += 1;
2182 if (r_type == R_OR1K_INSN_REL_26)
2183 sec_relocs->pc_count += 1;
2184 }
2185 }
2186 break;
2187 }
2188 }
2189
2190 return TRUE;
2191 }
2192
2193 static void
2194 or1k_write_plt_entry (bfd *output_bfd, bfd_byte *contents, unsigned insn1,
2195 unsigned insn2, unsigned insn3, unsigned insnj)
2196 {
2197 unsigned nodelay = elf_elfheader (output_bfd)->e_flags & EF_OR1K_NODELAY;
2198 unsigned insn4;
2199
2200 /* Honor the no-delay-slot setting. */
2201 if (insn3 == OR1K_NOP)
2202 {
2203 insn4 = insn3;
2204 if (nodelay)
2205 insn3 = insnj;
2206 else
2207 insn3 = insn2, insn2 = insnj;
2208 }
2209 else
2210 {
2211 if (nodelay)
2212 insn4 = insnj;
2213 else
2214 insn4 = insn3, insn3 = insnj;
2215 }
2216
2217 bfd_put_32 (output_bfd, insn1, contents);
2218 bfd_put_32 (output_bfd, insn2, contents + 4);
2219 bfd_put_32 (output_bfd, insn3, contents + 8);
2220 bfd_put_32 (output_bfd, insn4, contents + 12);
2221 }
2222
2223 /* Finish up the dynamic sections. */
2224
2225 static bfd_boolean
2226 or1k_elf_finish_dynamic_sections (bfd *output_bfd,
2227 struct bfd_link_info *info)
2228 {
2229 bfd *dynobj;
2230 asection *sdyn, *sgot;
2231 struct elf_or1k_link_hash_table *htab;
2232
2233 htab = or1k_elf_hash_table (info);
2234 if (htab == NULL)
2235 return FALSE;
2236
2237 dynobj = htab->root.dynobj;
2238
2239 sgot = htab->root.sgotplt;
2240 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
2241
2242 if (htab->root.dynamic_sections_created)
2243 {
2244 asection *splt;
2245 Elf32_External_Dyn *dyncon, *dynconend;
2246
2247 BFD_ASSERT (sgot != NULL && sdyn != NULL);
2248
2249 dyncon = (Elf32_External_Dyn *) sdyn->contents;
2250 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
2251
2252 for (; dyncon < dynconend; dyncon++)
2253 {
2254 Elf_Internal_Dyn dyn;
2255 asection *s;
2256
2257 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
2258
2259 switch (dyn.d_tag)
2260 {
2261 default:
2262 continue;
2263
2264 case DT_PLTGOT:
2265 s = htab->root.sgotplt;
2266 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
2267 break;
2268
2269 case DT_JMPREL:
2270 s = htab->root.srelplt;
2271 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
2272 break;
2273
2274 case DT_PLTRELSZ:
2275 s = htab->root.srelplt;
2276 dyn.d_un.d_val = s->size;
2277 break;
2278 }
2279 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
2280 }
2281
2282
2283 /* Fill in the first entry in the procedure linkage table. */
2284 splt = htab->root.splt;
2285 if (splt && splt->size > 0)
2286 {
2287 unsigned plt0, plt1, plt2;
2288 bfd_vma got_addr = sgot->output_section->vma + sgot->output_offset;
2289
2290 /* Note we force 16 byte alignment on the .got, so that
2291 the movhi/adrp can be shared between the two loads. */
2292
2293 if (htab->saw_plta)
2294 {
2295 bfd_vma pc = splt->output_section->vma + splt->output_offset;
2296 unsigned pa = ((got_addr >> 13) - (pc >> 13)) & 0x1fffff;
2297 unsigned po = got_addr & 0x1fff;
2298 plt0 = OR1K_ADRP(12) | pa;
2299 plt1 = OR1K_LWZ(15,12) | (po + 8);
2300 plt2 = OR1K_LWZ(12,12) | (po + 4);
2301 }
2302 else if (bfd_link_pic (info))
2303 {
2304 plt0 = OR1K_LWZ(15, 16) | 8; /* .got+8 */
2305 plt1 = OR1K_LWZ(12, 16) | 4; /* .got+4 */
2306 plt2 = OR1K_NOP;
2307 }
2308 else
2309 {
2310 unsigned ha = ((got_addr + 0x8000) >> 16) & 0xffff;
2311 unsigned lo = got_addr & 0xffff;
2312 plt0 = OR1K_MOVHI(12) | ha;
2313 plt1 = OR1K_LWZ(15,12) | (lo + 8);
2314 plt2 = OR1K_LWZ(12,12) | (lo + 4);
2315 }
2316
2317 or1k_write_plt_entry (output_bfd, splt->contents,
2318 plt0, plt1, plt2, OR1K_JR(15));
2319
2320 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
2321 }
2322 }
2323
2324 /* Set the first entry in the global offset table to the address of
2325 the dynamic section. */
2326 if (sgot && sgot->size > 0)
2327 {
2328 if (sdyn == NULL)
2329 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
2330 else
2331 bfd_put_32 (output_bfd,
2332 sdyn->output_section->vma + sdyn->output_offset,
2333 sgot->contents);
2334 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
2335 }
2336
2337 if (htab->root.sgot && htab->root.sgot->size > 0)
2338 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
2339
2340 return TRUE;
2341 }
2342
2343 /* Finish up dynamic symbol handling. We set the contents of various
2344 dynamic sections here. */
2345
2346 static bfd_boolean
2347 or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
2348 struct bfd_link_info *info,
2349 struct elf_link_hash_entry *h,
2350 Elf_Internal_Sym *sym)
2351 {
2352 struct elf_or1k_link_hash_table *htab;
2353 bfd_byte *loc;
2354
2355 htab = or1k_elf_hash_table (info);
2356 if (htab == NULL)
2357 return FALSE;
2358
2359 if (h->plt.offset != (bfd_vma) -1)
2360 {
2361 unsigned int plt0, plt1, plt2;
2362 asection *splt;
2363 asection *sgot;
2364 asection *srela;
2365 bfd_vma plt_base_addr;
2366 bfd_vma plt_addr;
2367 bfd_vma plt_index;
2368 bfd_vma plt_reloc;
2369 bfd_vma got_base_addr;
2370 bfd_vma got_offset;
2371 bfd_vma got_addr;
2372 Elf_Internal_Rela rela;
2373
2374 /* This symbol has an entry in the procedure linkage table. Set
2375 it up. */
2376 BFD_ASSERT (h->dynindx != -1);
2377
2378 splt = htab->root.splt;
2379 sgot = htab->root.sgotplt;
2380 srela = htab->root.srelplt;
2381 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2382
2383 plt_base_addr = splt->output_section->vma + splt->output_offset;
2384 got_base_addr = sgot->output_section->vma + sgot->output_offset;
2385
2386 /* Get the index in the procedure linkage table which
2387 corresponds to this symbol. This is the index of this symbol
2388 in all the symbols for which we are making plt entries. The
2389 first entry in the procedure linkage table is reserved. */
2390 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
2391 plt_addr = plt_base_addr + h->plt.offset;
2392 plt_reloc = plt_index * sizeof (Elf32_External_Rela);
2393
2394 /* Get the offset into the .got table of the entry that
2395 corresponds to this function. Each .got entry is 4 bytes.
2396 The first three are reserved. */
2397 got_offset = (plt_index + 3) * 4;
2398 got_addr = got_base_addr + got_offset;
2399
2400 /* Fill in the entry in the procedure linkage table. */
2401 if (htab->saw_plta)
2402 {
2403 unsigned pa = ((got_addr >> 13) - (plt_addr >> 13)) & 0x1fffff;
2404 unsigned po = (got_addr & 0x1fff);
2405 plt0 = OR1K_ADRP(12) | pa;
2406 plt1 = OR1K_LWZ(12,12) | po;
2407 plt2 = OR1K_ORI0(11) | plt_reloc;
2408 }
2409 else if (bfd_link_pic (info))
2410 {
2411 plt0 = OR1K_LWZ(12,16) | got_offset;
2412 plt1 = OR1K_ORI0(11) | plt_reloc;
2413 plt2 = OR1K_NOP;
2414 }
2415 else
2416 {
2417 unsigned ha = ((got_addr + 0x8000) >> 16) & 0xffff;
2418 unsigned lo = got_addr & 0xffff;
2419 plt0 = OR1K_MOVHI(12) | ha;
2420 plt1 = OR1K_LWZ(12,12) | lo;
2421 plt2 = OR1K_ORI0(11) | plt_reloc;
2422 }
2423
2424 or1k_write_plt_entry (output_bfd, splt->contents + h->plt.offset,
2425 plt0, plt1, plt2, OR1K_JR(12));
2426
2427 /* Fill in the entry in the global offset table. We initialize it to
2428 point to the top of the plt. This is done to lazy lookup the actual
2429 symbol as the first plt entry will be setup by libc to call the
2430 runtime dynamic linker. */
2431 bfd_put_32 (output_bfd, plt_base_addr, sgot->contents + got_offset);
2432
2433 /* Fill in the entry in the .rela.plt section. */
2434 rela.r_offset = got_addr;
2435 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
2436 rela.r_addend = 0;
2437 loc = srela->contents;
2438 loc += plt_index * sizeof (Elf32_External_Rela);
2439 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2440
2441 if (!h->def_regular)
2442 {
2443 /* Mark the symbol as undefined, rather than as defined in
2444 the .plt section. Leave the value alone. */
2445 sym->st_shndx = SHN_UNDEF;
2446 }
2447 }
2448
2449 if (h->got.offset != (bfd_vma) -1
2450 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
2451 {
2452 asection *sgot;
2453 asection *srelgot;
2454 Elf_Internal_Rela rela;
2455
2456 /* This symbol has an entry in the global offset table. Set it
2457 up. */
2458 sgot = htab->root.sgot;
2459 srelgot = htab->root.srelgot;
2460 BFD_ASSERT (sgot != NULL && srelgot != NULL);
2461
2462 rela.r_offset = (sgot->output_section->vma
2463 + sgot->output_offset
2464 + (h->got.offset &~ 1));
2465
2466 /* If this is a -Bsymbolic link, and the symbol is defined
2467 locally, we just want to emit a RELATIVE reloc. Likewise if
2468 the symbol was forced to be local because of a version file.
2469 The entry in the global offset table will already have been
2470 initialized in the relocate_section function. */
2471 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
2472 {
2473 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
2474 rela.r_addend = (h->root.u.def.value
2475 + h->root.u.def.section->output_section->vma
2476 + h->root.u.def.section->output_offset);
2477 }
2478 else
2479 {
2480 BFD_ASSERT ((h->got.offset & 1) == 0);
2481 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
2482 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
2483 rela.r_addend = 0;
2484 }
2485
2486 loc = srelgot->contents;
2487 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2488 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2489 ++srelgot->reloc_count;
2490 }
2491
2492 if (h->needs_copy)
2493 {
2494 asection *s;
2495 Elf_Internal_Rela rela;
2496
2497 /* This symbols needs a copy reloc. Set it up. */
2498 BFD_ASSERT (h->dynindx != -1
2499 && (h->root.type == bfd_link_hash_defined
2500 || h->root.type == bfd_link_hash_defweak));
2501
2502 rela.r_offset = (h->root.u.def.value
2503 + h->root.u.def.section->output_section->vma
2504 + h->root.u.def.section->output_offset);
2505 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
2506 rela.r_addend = 0;
2507 if (h->root.u.def.section == htab->root.sdynrelro)
2508 s = htab->root.sreldynrelro;
2509 else
2510 s = htab->root.srelbss;
2511 loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
2512 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2513 ++s->reloc_count;
2514 }
2515
2516 /* Mark some specially defined symbols as absolute. */
2517 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
2518 || h == htab->root.hgot)
2519 sym->st_shndx = SHN_ABS;
2520
2521 return TRUE;
2522 }
2523
2524 static enum elf_reloc_type_class
2525 or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
2526 const asection *rel_sec ATTRIBUTE_UNUSED,
2527 const Elf_Internal_Rela *rela)
2528 {
2529 switch ((int) ELF32_R_TYPE (rela->r_info))
2530 {
2531 case R_OR1K_RELATIVE: return reloc_class_relative;
2532 case R_OR1K_JMP_SLOT: return reloc_class_plt;
2533 case R_OR1K_COPY: return reloc_class_copy;
2534 default: return reloc_class_normal;
2535 }
2536 }
2537
2538 /* Adjust a symbol defined by a dynamic object and referenced by a
2539 regular object. The current definition is in some section of the
2540 dynamic object, but we're not including those sections. We have to
2541 change the definition to something the rest of the link can
2542 understand. */
2543
2544 static bfd_boolean
2545 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2546 struct elf_link_hash_entry *h)
2547 {
2548 struct elf_or1k_link_hash_table *htab;
2549 bfd *dynobj;
2550 asection *s, *srel;
2551
2552 dynobj = elf_hash_table (info)->dynobj;
2553
2554 /* Make sure we know what is going on here. */
2555 BFD_ASSERT (dynobj != NULL
2556 && (h->needs_plt
2557 || h->is_weakalias
2558 || (h->def_dynamic
2559 && h->ref_regular
2560 && !h->def_regular)));
2561
2562 /* If this is a function, put it in the procedure linkage table. We
2563 will fill in the contents of the procedure linkage table later,
2564 when we know the address of the .got section. */
2565 if (h->type == STT_FUNC
2566 || h->needs_plt)
2567 {
2568 if (! bfd_link_pic (info)
2569 && !h->def_dynamic
2570 && !h->ref_dynamic
2571 && h->root.type != bfd_link_hash_undefweak
2572 && h->root.type != bfd_link_hash_undefined)
2573 {
2574 /* This case can occur if we saw a PLT reloc in an input
2575 file, but the symbol was never referred to by a dynamic
2576 object. In such a case, we don't actually need to build
2577 a procedure linkage table, and we can just do a PCREL
2578 reloc instead. */
2579 h->plt.offset = (bfd_vma) -1;
2580 h->needs_plt = 0;
2581 }
2582
2583 return TRUE;
2584 }
2585 else
2586 h->plt.offset = (bfd_vma) -1;
2587
2588 /* If this is a weak symbol, and there is a real definition, the
2589 processor independent code will have arranged for us to see the
2590 real definition first, and we can just use the same value. */
2591 if (h->is_weakalias)
2592 {
2593 struct elf_link_hash_entry *def = weakdef (h);
2594 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2595 h->root.u.def.section = def->root.u.def.section;
2596 h->root.u.def.value = def->root.u.def.value;
2597 return TRUE;
2598 }
2599
2600 /* This is a reference to a symbol defined by a dynamic object which
2601 is not a function. */
2602
2603 /* If we are creating a shared library, we must presume that the
2604 only references to the symbol are via the global offset table.
2605 For such cases we need not do anything here; the relocations will
2606 be handled correctly by relocate_section. */
2607 if (bfd_link_pic (info))
2608 return TRUE;
2609
2610 /* If there are no references to this symbol that do not use the
2611 GOT, we don't need to generate a copy reloc. */
2612 if (!h->non_got_ref)
2613 return TRUE;
2614
2615 /* If -z nocopyreloc was given, we won't generate them either. */
2616 if (info->nocopyreloc)
2617 {
2618 h->non_got_ref = 0;
2619 return TRUE;
2620 }
2621
2622 /* If we don't find any dynamic relocs in read-only sections, then
2623 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2624 if (!_bfd_elf_readonly_dynrelocs (h))
2625 {
2626 h->non_got_ref = 0;
2627 return TRUE;
2628 }
2629
2630 /* We must allocate the symbol in our .dynbss section, which will
2631 become part of the .bss section of the executable. There will be
2632 an entry for this symbol in the .dynsym section. The dynamic
2633 object will contain position independent code, so all references
2634 from the dynamic object to this symbol will go through the global
2635 offset table. The dynamic linker will use the .dynsym entry to
2636 determine the address it must put in the global offset table, so
2637 both the dynamic object and the regular object will refer to the
2638 same memory location for the variable. */
2639
2640 htab = or1k_elf_hash_table (info);
2641 if (htab == NULL)
2642 return FALSE;
2643
2644 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2645 to copy the initial value out of the dynamic object and into the
2646 runtime process image. We need to remember the offset into the
2647 .rela.bss section we are going to use. */
2648 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2649 {
2650 s = htab->root.sdynrelro;
2651 srel = htab->root.sreldynrelro;
2652 }
2653 else
2654 {
2655 s = htab->root.sdynbss;
2656 srel = htab->root.srelbss;
2657 }
2658 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2659 {
2660 srel->size += sizeof (Elf32_External_Rela);
2661 h->needs_copy = 1;
2662 }
2663
2664 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2665 }
2666
2667 /* Caclulate an update the sizes required for a symbol in the GOT and
2668 RELA relocation section based on the TLS_TYPE and whether or not the symbol
2669 is DYNAMIC.
2670
2671 Symbols with TLS_GD access require 8 bytes in the GOT and, if dynamic,
2672 require two relocation entries. Symbols with TLS_IE access require 4 bytes
2673 in the GOT and, if dynamic, require one relocation entry. Symbols may have
2674 both TLS_GD and TLS_IE access to be accounted for.
2675
2676 Other symbols require 4 bytes in the GOT table and, if dynamic, require one
2677 relocation entry. */
2678
2679 static void
2680 or1k_set_got_and_rela_sizes (const unsigned char tls_type,
2681 const bfd_boolean dynamic,
2682 bfd_vma *got_size,
2683 bfd_vma *rela_size)
2684 {
2685 bfd_boolean is_tls_entry = FALSE;
2686
2687 /* TLS GD requires two GOT entries and two relocs. */
2688 if ((tls_type & TLS_GD) != 0)
2689 {
2690 *got_size += 8;
2691 is_tls_entry = TRUE;
2692 }
2693
2694 if ((tls_type & TLS_IE) != 0)
2695 {
2696 *got_size += 4;
2697 is_tls_entry = TRUE;
2698 }
2699
2700 if (is_tls_entry == FALSE)
2701 *got_size += 4;
2702
2703 if (dynamic)
2704 {
2705 if ((tls_type & TLS_GD) != 0)
2706 *rela_size += 2 * sizeof (Elf32_External_Rela);
2707
2708 if ((tls_type & TLS_IE) != 0)
2709 *rela_size += sizeof (Elf32_External_Rela);
2710
2711 if (is_tls_entry == FALSE)
2712 *rela_size += sizeof (Elf32_External_Rela);
2713 }
2714 }
2715
2716
2717 /* Allocate space in .plt, .got and associated reloc sections for
2718 dynamic relocs. */
2719
2720 static bfd_boolean
2721 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2722 {
2723 struct bfd_link_info *info;
2724 struct elf_or1k_link_hash_table *htab;
2725 struct elf_dyn_relocs *sec_relocs;
2726
2727 if (h->root.type == bfd_link_hash_indirect)
2728 return TRUE;
2729
2730 info = (struct bfd_link_info *) inf;
2731 htab = or1k_elf_hash_table (info);
2732 if (htab == NULL)
2733 return FALSE;
2734
2735 if (htab->root.dynamic_sections_created
2736 && h->plt.refcount > 0)
2737 {
2738 /* Make sure this symbol is output as a dynamic symbol.
2739 Undefined weak syms won't yet be marked as dynamic. */
2740 if (h->dynindx == -1
2741 && !h->forced_local)
2742 {
2743 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2744 return FALSE;
2745 }
2746
2747 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2748 {
2749 asection *splt = htab->root.splt;
2750
2751 /* If this is the first .plt entry, make room for the special
2752 first entry. */
2753 if (splt->size == 0)
2754 splt->size = PLT_ENTRY_SIZE;
2755
2756 h->plt.offset = splt->size;
2757
2758 /* If this symbol is not defined in a regular file, and we are
2759 not generating a shared library, then set the symbol to this
2760 location in the .plt. This is required to make function
2761 pointers compare as equal between the normal executable and
2762 the shared library. */
2763 if (! bfd_link_pic (info)
2764 && !h->def_regular)
2765 {
2766 h->root.u.def.section = splt;
2767 h->root.u.def.value = h->plt.offset;
2768 }
2769
2770 /* Make room for this entry. */
2771 splt->size += PLT_ENTRY_SIZE;
2772
2773 /* We also need to make an entry in the .got.plt section, which
2774 will be placed in the .got section by the linker script. */
2775 htab->root.sgotplt->size += 4;
2776
2777 /* We also need to make an entry in the .rel.plt section. */
2778 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2779 }
2780 else
2781 {
2782 h->plt.offset = (bfd_vma) -1;
2783 h->needs_plt = 0;
2784 }
2785 }
2786 else
2787 {
2788 h->plt.offset = (bfd_vma) -1;
2789 h->needs_plt = 0;
2790 }
2791
2792 if (h->got.refcount > 0)
2793 {
2794 asection *sgot;
2795 bfd_boolean dyn;
2796 unsigned char tls_type;
2797
2798 /* Make sure this symbol is output as a dynamic symbol.
2799 Undefined weak syms won't yet be marked as dynamic. */
2800 if (h->dynindx == -1
2801 && !h->forced_local)
2802 {
2803 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2804 return FALSE;
2805 }
2806
2807 sgot = htab->root.sgot;
2808
2809 h->got.offset = sgot->size;
2810
2811 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2812
2813 dyn = htab->root.dynamic_sections_created;
2814 dyn = WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h);
2815 or1k_set_got_and_rela_sizes (tls_type, dyn,
2816 &sgot->size, &htab->root.srelgot->size);
2817 }
2818 else
2819 h->got.offset = (bfd_vma) -1;
2820
2821 if (h->dyn_relocs == NULL)
2822 return TRUE;
2823
2824 /* In the shared -Bsymbolic case, discard space allocated for
2825 dynamic pc-relative relocs against symbols which turn out to be
2826 defined in regular objects. For the normal shared case, discard
2827 space for pc-relative relocs that have become local due to symbol
2828 visibility changes. */
2829
2830 if (bfd_link_pic (info))
2831 {
2832 if (SYMBOL_CALLS_LOCAL (info, h))
2833 {
2834 struct elf_dyn_relocs **pp;
2835
2836 for (pp = &h->dyn_relocs; (sec_relocs = *pp) != NULL;)
2837 {
2838 sec_relocs->count -= sec_relocs->pc_count;
2839 sec_relocs->pc_count = 0;
2840 if (sec_relocs->count == 0)
2841 *pp = sec_relocs->next;
2842 else
2843 pp = &sec_relocs->next;
2844 }
2845 }
2846
2847 /* Also discard relocs on undefined weak syms with non-default
2848 visibility. */
2849 if (h->dyn_relocs != NULL
2850 && h->root.type == bfd_link_hash_undefweak)
2851 {
2852 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2853 h->dyn_relocs = NULL;
2854
2855 /* Make sure undefined weak symbols are output as a dynamic
2856 symbol in PIEs. */
2857 else if (h->dynindx == -1
2858 && !h->forced_local)
2859 {
2860 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2861 return FALSE;
2862 }
2863 }
2864 }
2865 else
2866 {
2867 /* For the non-shared case, discard space for relocs against
2868 symbols which turn out to need copy relocs or are not
2869 dynamic. */
2870
2871 if (!h->non_got_ref
2872 && ((h->def_dynamic
2873 && !h->def_regular)
2874 || (htab->root.dynamic_sections_created
2875 && (h->root.type == bfd_link_hash_undefweak
2876 || h->root.type == bfd_link_hash_undefined))))
2877 {
2878 /* Make sure this symbol is output as a dynamic symbol.
2879 Undefined weak syms won't yet be marked as dynamic. */
2880 if (h->dynindx == -1
2881 && !h->forced_local)
2882 {
2883 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2884 return FALSE;
2885 }
2886
2887 /* If that succeeded, we know we'll be keeping all the
2888 relocs. */
2889 if (h->dynindx != -1)
2890 goto keep;
2891 }
2892
2893 h->dyn_relocs = NULL;
2894
2895 keep: ;
2896 }
2897
2898 /* Finally, allocate space. */
2899 for (sec_relocs = h->dyn_relocs;
2900 sec_relocs != NULL;
2901 sec_relocs = sec_relocs->next)
2902 {
2903 asection *sreloc = elf_section_data (sec_relocs->sec)->sreloc;
2904 sreloc->size += sec_relocs->count * sizeof (Elf32_External_Rela);
2905 }
2906
2907 return TRUE;
2908 }
2909
2910 /* Set the sizes of the dynamic sections. */
2911
2912 static bfd_boolean
2913 or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2914 struct bfd_link_info *info)
2915 {
2916 struct elf_or1k_link_hash_table *htab;
2917 bfd *dynobj;
2918 asection *s;
2919 bfd_boolean relocs;
2920 bfd *ibfd;
2921
2922 htab = or1k_elf_hash_table (info);
2923 if (htab == NULL)
2924 return FALSE;
2925
2926 dynobj = htab->root.dynobj;
2927 BFD_ASSERT (dynobj != NULL);
2928
2929 if (htab->root.dynamic_sections_created)
2930 {
2931 /* Set the contents of the .interp section to the interpreter. */
2932 if (bfd_link_executable (info) && !info->nointerp)
2933 {
2934 s = bfd_get_section_by_name (dynobj, ".interp");
2935 BFD_ASSERT (s != NULL);
2936 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2937 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2938 }
2939 }
2940
2941 /* Set up .got offsets for local syms, and space for local dynamic
2942 relocs. */
2943 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2944 {
2945 bfd_signed_vma *local_got;
2946 bfd_signed_vma *end_local_got;
2947 bfd_size_type locsymcount;
2948 Elf_Internal_Shdr *symtab_hdr;
2949 unsigned char *local_tls_type;
2950 asection *srel;
2951
2952 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2953 continue;
2954
2955 for (s = ibfd->sections; s != NULL; s = s->next)
2956 {
2957 struct elf_dyn_relocs *sec_relocs;
2958
2959 for (sec_relocs = ((struct elf_dyn_relocs *)
2960 elf_section_data (s)->local_dynrel);
2961 sec_relocs != NULL;
2962 sec_relocs = sec_relocs->next)
2963 {
2964 if (! bfd_is_abs_section (sec_relocs->sec)
2965 && bfd_is_abs_section (sec_relocs->sec->output_section))
2966 {
2967 /* Input section has been discarded, either because
2968 it is a copy of a linkonce section or due to
2969 linker script /DISCARD/, so we'll be discarding
2970 the relocs too. */
2971 }
2972 else if (sec_relocs->count != 0)
2973 {
2974 srel = elf_section_data (sec_relocs->sec)->sreloc;
2975 srel->size += sec_relocs->count
2976 * sizeof (Elf32_External_Rela);
2977 if ((sec_relocs->sec->output_section->flags & SEC_READONLY)
2978 != 0)
2979 info->flags |= DF_TEXTREL;
2980 }
2981 }
2982 }
2983
2984 local_got = elf_local_got_refcounts (ibfd);
2985 if (!local_got)
2986 continue;
2987
2988 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2989 locsymcount = symtab_hdr->sh_info;
2990 end_local_got = local_got + locsymcount;
2991 s = htab->root.sgot;
2992 srel = htab->root.srelgot;
2993 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2994 for (; local_got < end_local_got; ++local_got)
2995 {
2996 if (*local_got > 0)
2997 {
2998 unsigned char tls_type = (local_tls_type == NULL)
2999 ? TLS_UNKNOWN
3000 : *local_tls_type;
3001
3002 *local_got = s->size;
3003 or1k_set_got_and_rela_sizes (tls_type, bfd_link_pic (info),
3004 &s->size, &srel->size);
3005 }
3006 else
3007
3008 *local_got = (bfd_vma) -1;
3009
3010 if (local_tls_type)
3011 ++local_tls_type;
3012 }
3013 }
3014
3015 /* Allocate global sym .plt and .got entries, and space for global
3016 sym dynamic relocs. */
3017 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
3018
3019 /* We now have determined the sizes of the various dynamic sections.
3020 Allocate memory for them. */
3021 relocs = FALSE;
3022 for (s = dynobj->sections; s != NULL; s = s->next)
3023 {
3024 if ((s->flags & SEC_LINKER_CREATED) == 0)
3025 continue;
3026
3027 if (s == htab->root.splt
3028 || s == htab->root.sgot
3029 || s == htab->root.sgotplt
3030 || s == htab->root.sdynbss
3031 || s == htab->root.sdynrelro)
3032 {
3033 /* Strip this section if we don't need it; see the
3034 comment below. */
3035 }
3036 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
3037 {
3038 if (s->size != 0 && s != htab->root.srelplt)
3039 relocs = TRUE;
3040
3041 /* We use the reloc_count field as a counter if we need
3042 to copy relocs into the output file. */
3043 s->reloc_count = 0;
3044 }
3045 else
3046 /* It's not one of our sections, so don't allocate space. */
3047 continue;
3048
3049 if (s->size == 0)
3050 {
3051 /* If we don't need this section, strip it from the
3052 output file. This is mostly to handle .rela.bss and
3053 .rela.plt. We must create both sections in
3054 create_dynamic_sections, because they must be created
3055 before the linker maps input sections to output
3056 sections. The linker does that before
3057 adjust_dynamic_symbol is called, and it is that
3058 function which decides whether anything needs to go
3059 into these sections. */
3060 s->flags |= SEC_EXCLUDE;
3061 continue;
3062 }
3063
3064 if ((s->flags & SEC_HAS_CONTENTS) == 0)
3065 continue;
3066
3067 /* Allocate memory for the section contents. We use bfd_zalloc
3068 here in case unused entries are not reclaimed before the
3069 section's contents are written out. This should not happen,
3070 but this way if it does, we get a R_OR1K_NONE reloc instead
3071 of garbage. */
3072 s->contents = bfd_zalloc (dynobj, s->size);
3073
3074 if (s->contents == NULL)
3075 return FALSE;
3076 }
3077
3078 return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
3079 }
3080
3081 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3082
3083 static void
3084 or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
3085 struct elf_link_hash_entry *dir,
3086 struct elf_link_hash_entry *ind)
3087 {
3088 struct elf_or1k_link_hash_entry * edir;
3089 struct elf_or1k_link_hash_entry * eind;
3090
3091 edir = (struct elf_or1k_link_hash_entry *) dir;
3092 eind = (struct elf_or1k_link_hash_entry *) ind;
3093
3094 if (ind->root.type == bfd_link_hash_indirect)
3095 {
3096 if (dir->got.refcount <= 0)
3097 {
3098 edir->tls_type = eind->tls_type;
3099 eind->tls_type = TLS_UNKNOWN;
3100 }
3101 }
3102
3103 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
3104 }
3105
3106 /* Set the right machine number. */
3107
3108 static bfd_boolean
3109 or1k_elf_object_p (bfd *abfd)
3110 {
3111 unsigned long mach = bfd_mach_or1k;
3112
3113 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
3114 mach = bfd_mach_or1knd;
3115
3116 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
3117 }
3118
3119 /* Store the machine number in the flags field. */
3120
3121 static bfd_boolean
3122 or1k_elf_final_write_processing (bfd *abfd)
3123 {
3124 switch (bfd_get_mach (abfd))
3125 {
3126 default:
3127 case bfd_mach_or1k:
3128 break;
3129 case bfd_mach_or1knd:
3130 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
3131 break;
3132 }
3133 return _bfd_elf_final_write_processing (abfd);
3134 }
3135
3136 static bfd_boolean
3137 or1k_elf_set_private_flags (bfd *abfd, flagword flags)
3138 {
3139 BFD_ASSERT (!elf_flags_init (abfd)
3140 || elf_elfheader (abfd)->e_flags == flags);
3141
3142 elf_elfheader (abfd)->e_flags = flags;
3143 elf_flags_init (abfd) = TRUE;
3144 return TRUE;
3145 }
3146
3147 /* Make sure all input files are consistent with respect to
3148 EF_OR1K_NODELAY flag setting. */
3149
3150 static bfd_boolean
3151 elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
3152 {
3153 bfd *obfd = info->output_bfd;
3154 flagword out_flags;
3155 flagword in_flags;
3156
3157 in_flags = elf_elfheader (ibfd)->e_flags;
3158 out_flags = elf_elfheader (obfd)->e_flags;
3159
3160 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3161 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3162 return TRUE;
3163
3164 if (!elf_flags_init (obfd))
3165 {
3166 elf_flags_init (obfd) = TRUE;
3167 elf_elfheader (obfd)->e_flags = in_flags;
3168
3169 return TRUE;
3170 }
3171
3172 if (in_flags == out_flags)
3173 return TRUE;
3174
3175 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
3176 {
3177 _bfd_error_handler
3178 (_("%pB: %s flag mismatch with previous modules"),
3179 ibfd, "EF_OR1K_NODELAY");
3180
3181 bfd_set_error (bfd_error_bad_value);
3182 return FALSE;
3183 }
3184
3185 return TRUE;
3186
3187 }
3188
3189 /* Implement elf_backend_grok_prstatus:
3190 Support for core dump NOTE sections. */
3191 static bfd_boolean
3192 or1k_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
3193 {
3194 int offset;
3195 size_t size;
3196
3197 switch (note->descsz)
3198 {
3199 default:
3200 return FALSE;
3201
3202 case 212: /* Linux/OpenRISC */
3203 /* pr_cursig */
3204 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
3205
3206 /* pr_pid */
3207 elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24);
3208
3209 /* pr_reg */
3210 offset = 72;
3211 size = 132;
3212
3213 break;
3214 }
3215
3216 /* Make a ".reg/999" section. */
3217 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
3218 size, note->descpos + offset);
3219 }
3220
3221 /* Implement elf_backend_grok_psinfo. */
3222 static bfd_boolean
3223 or1k_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
3224 {
3225 switch (note->descsz)
3226 {
3227 default:
3228 return FALSE;
3229
3230 case 128: /* Linux/OpenRISC elf_prpsinfo */
3231 elf_tdata (abfd)->core->program
3232 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
3233 elf_tdata (abfd)->core->command
3234 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
3235 }
3236
3237 return TRUE;
3238 }
3239
3240
3241 #define ELF_ARCH bfd_arch_or1k
3242 #define ELF_MACHINE_CODE EM_OR1K
3243 #define ELF_TARGET_ID OR1K_ELF_DATA
3244 #define ELF_MAXPAGESIZE 0x2000
3245
3246 #define TARGET_BIG_SYM or1k_elf32_vec
3247 #define TARGET_BIG_NAME "elf32-or1k"
3248
3249 #define elf_info_to_howto_rel NULL
3250 #define elf_info_to_howto or1k_info_to_howto_rela
3251 #define elf_backend_relocate_section or1k_elf_relocate_section
3252 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
3253 #define elf_backend_check_relocs or1k_elf_check_relocs
3254 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
3255 #define elf_backend_can_gc_sections 1
3256 #define elf_backend_rela_normal 1
3257
3258 #define bfd_elf32_mkobject elf_or1k_mkobject
3259
3260 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
3261 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
3262 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
3263 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
3264
3265 #define elf_backend_object_p or1k_elf_object_p
3266 #define elf_backend_final_write_processing or1k_elf_final_write_processing
3267 #define elf_backend_can_refcount 1
3268
3269 #define elf_backend_plt_readonly 1
3270 #define elf_backend_want_got_plt 1
3271 #define elf_backend_want_plt_sym 0
3272 #define elf_backend_got_header_size 12
3273 #define elf_backend_dtrel_excludes_plt 1
3274 #define elf_backend_want_dynrelro 1
3275
3276 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
3277 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
3278 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
3279 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
3280 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
3281 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
3282 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
3283
3284 #define elf_backend_grok_prstatus or1k_grok_prstatus
3285 #define elf_backend_grok_psinfo or1k_grok_psinfo
3286
3287 #include "elf32-target.h"