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[deliverable/binutils-gdb.git] / bfd / elf32-or1k.c
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73589c9d 1/* Or1k-specific support for 32-bit ELF.
2571583a 2 Copyright (C) 2001-2017 Free Software Foundation, Inc.
73589c9d
CS		 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 PLT_ENTRY_SIZE 20
31
32#define PLT0_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(.got+4) */
33#define PLT0_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(.got+4) */
34#define PLT0_ENTRY_WORD2 0x85ec0004 /* l.lwz r15, 4(r12) <- *(.got+8)*/
35#define PLT0_ENTRY_WORD3 0x44007800 /* l.jr r15 */
36#define PLT0_ENTRY_WORD4 0x858c0000 /* l.lwz r12, 0(r12) */
37
38#define PLT0_PIC_ENTRY_WORD0 0x85900004 /* l.lwz r12, 4(r16) */
39#define PLT0_PIC_ENTRY_WORD1 0x85f00008 /* l.lwz r15, 8(r16) */
40#define PLT0_PIC_ENTRY_WORD2 0x44007800 /* l.jr r15 */
41#define PLT0_PIC_ENTRY_WORD3 0x15000000 /* l.nop */
42#define PLT0_PIC_ENTRY_WORD4 0x15000000 /* l.nop */
43
44#define PLT_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(got idx addr) */
45#define PLT_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(got idx addr) */
46#define PLT_ENTRY_WORD2 0x858c0000 /* l.lwz r12, 0(r12) */
47#define PLT_ENTRY_WORD3 0x44006000 /* l.jr r12 */
48#define PLT_ENTRY_WORD4 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */
49
50#define PLT_PIC_ENTRY_WORD0 0x85900000 /* l.lwz r12, 0(r16) <- index in got */
51#define PLT_PIC_ENTRY_WORD1 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */
52#define PLT_PIC_ENTRY_WORD2 0x44006000 /* l.jr r12 */
53#define PLT_PIC_ENTRY_WORD3 0x15000000 /* l.nop */
54#define PLT_PIC_ENTRY_WORD4 0x15000000 /* l.nop */
55
56#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
57
58static reloc_howto_type or1k_elf_howto_table[] =
59{
60 /* This reloc does nothing. */
61 HOWTO (R_OR1K_NONE, /* type */
62 0, /* rightshift */
6346d5ca
AM		 63 3, /* size (0 = byte, 1 = short, 2 = long) */
64 0, /* bitsize */
73589c9d
CS		 65 FALSE, /* pc_relative */
66 0, /* bitpos */
67 complain_overflow_dont, /* complain_on_overflow */
68 bfd_elf_generic_reloc, /* special_function */
69 "R_OR1K_NONE", /* name */
70 FALSE, /* partial_inplace */
71 0, /* src_mask */
72 0, /* dst_mask */
73 FALSE), /* pcrel_offset */
74
75 HOWTO (R_OR1K_32,
76 0, /* rightshift */
77 2, /* size (0 = byte, 1 = short, 2 = long) */
78 32, /* bitsize */
79 FALSE, /* pc_relative */
80 0, /* bitpos */
81 complain_overflow_unsigned, /* complain_on_overflow */
82 bfd_elf_generic_reloc, /* special_function */
83 "R_OR1K_32", /* name */
84 FALSE, /* partial_inplace */
85 0, /* src_mask */
86 0xffffffff, /* dst_mask */
87 FALSE), /* pcrel_offset */
88
89 HOWTO (R_OR1K_16,
90 0, /* rightshift */
91 1, /* size (0 = byte, 1 = short, 2 = long) */
92 16, /* bitsize */
93 FALSE, /* pc_relative */
94 0, /* bitpos */
95 complain_overflow_unsigned, /* complain_on_overflow */
96 bfd_elf_generic_reloc, /* special_function */
97 "R_OR1K_16", /* name */
98 FALSE, /* partial_inplace */
99 0, /* src_mask */
100 0xffff, /* dst_mask */
101 FALSE), /* pcrel_offset */
102
103 HOWTO (R_OR1K_8,
104 0, /* rightshift */
105 0, /* size (0 = byte, 1 = short, 2 = long) */
106 8, /* bitsize */
107 FALSE, /* pc_relative */
108 0, /* bitpos */
109 complain_overflow_unsigned, /* complain_on_overflow */
110 bfd_elf_generic_reloc, /* special_function */
111 "R_OR1K_8", /* name */
112 FALSE, /* partial_inplace */
113 0, /* src_mask */
114 0xff, /* dst_mask */
115 FALSE), /* pcrel_offset */
116
117 HOWTO (R_OR1K_LO_16_IN_INSN, /* type */
118 0, /* rightshift */
119 2, /* size (0 = byte, 1 = short, 2 = long) */
120 16, /* bitsize */
121 FALSE, /* pc_relative */
122 0, /* bitpos */
123 complain_overflow_dont, /* complain_on_overflow */
124 bfd_elf_generic_reloc, /* special_function */
125 "R_OR1K_LO_16_IN_INSN", /* name */
126 FALSE, /* partial_inplace */
127 0, /* src_mask */
128 0x0000ffff, /* dst_mask */
129 FALSE), /* pcrel_offset */
130
131 HOWTO (R_OR1K_HI_16_IN_INSN, /* type */
132 16, /* rightshift */
133 2, /* size (0 = byte, 1 = short, 2 = long) */
134 16, /* bitsize */
135 FALSE, /* pc_relative */
136 0, /* bitpos */
137 complain_overflow_dont, /* complain_on_overflow */
138 bfd_elf_generic_reloc, /* special_function */
139 "R_OR1K_HI_16_IN_INSN", /* name */
140 FALSE, /* partial_inplace */
141 0, /* src_mask */
142 0x0000ffff, /* dst_mask */
143 FALSE), /* pcrel_offset */
144
145 /* A PC relative 26 bit relocation, right shifted by 2. */
146 HOWTO (R_OR1K_INSN_REL_26, /* type */
147 2, /* rightshift */
148 2, /* size (0 = byte, 1 = short, 2 = long) */
149 26, /* bitsize */
150 TRUE, /* pc_relative */
151 0, /* bitpos */
152 complain_overflow_signed, /* complain_on_overflow */
153 bfd_elf_generic_reloc, /* special_function */
154 "R_OR1K_INSN_REL_26", /* name */
155 FALSE, /* partial_inplace */
156 0, /* src_mask */
157 0x03ffffff, /* dst_mask */
158 TRUE), /* pcrel_offset */
159
160 /* GNU extension to record C++ vtable hierarchy. */
161 HOWTO (R_OR1K_GNU_VTINHERIT, /* 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 NULL, /* special_function */
169 "R_OR1K_GNU_VTINHERIT", /* name */
170 FALSE, /* partial_inplace */
171 0, /* src_mask */
172 0, /* dst_mask */
173 FALSE), /* pcrel_offset */
174
175 /* GNU extension to record C++ vtable member usage. */
176 HOWTO (R_OR1K_GNU_VTENTRY, /* type */
177 0, /* rightshift */
178 2, /* size (0 = byte, 1 = short, 2 = long) */
179 0, /* bitsize */
180 FALSE, /* pc_relative */
181 0, /* bitpos */
182 complain_overflow_dont, /* complain_on_overflow */
183 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
184 "R_OR1K_GNU_VTENTRY", /* name */
185 FALSE, /* partial_inplace */
186 0, /* src_mask */
187 0, /* dst_mask */
188 FALSE), /* pcrel_offset */
189
190 HOWTO (R_OR1K_32_PCREL,
191 0, /* rightshift */
192 2, /* size (0 = byte, 1 = short, 2 = long) */
193 32, /* bitsize */
194 TRUE, /* pc_relative */
195 0, /* bitpos */
196 complain_overflow_signed, /* complain_on_overflow */
197 bfd_elf_generic_reloc, /* special_function */
198 "R_OR1K_32_PCREL", /* name */
199 FALSE, /* partial_inplace */
200 0, /* src_mask */
201 0xffffffff, /* dst_mask */
8a9e7a91 202 TRUE), /* pcrel_offset */
73589c9d
CS		 203
204 HOWTO (R_OR1K_16_PCREL,
205 0, /* rightshift */
206 1, /* size (0 = byte, 1 = short, 2 = long) */
207 16, /* bitsize */
208 TRUE, /* pc_relative */
209 0, /* bitpos */
210 complain_overflow_signed, /* complain_on_overflow */
211 bfd_elf_generic_reloc, /* special_function */
212 "R_OR1K_16_PCREL", /* name */
213 FALSE, /* partial_inplace */
214 0, /* src_mask */
215 0xffff, /* dst_mask */
8a9e7a91 216 TRUE), /* pcrel_offset */
73589c9d
CS		 217
218 HOWTO (R_OR1K_8_PCREL,
219 0, /* rightshift */
220 0, /* size (0 = byte, 1 = short, 2 = long) */
221 8, /* bitsize */
222 TRUE, /* pc_relative */
223 0, /* bitpos */
224 complain_overflow_signed, /* complain_on_overflow */
225 bfd_elf_generic_reloc, /* special_function */
226 "R_OR1K_8_PCREL", /* name */
227 FALSE, /* partial_inplace */
228 0, /* src_mask */
229 0xff, /* dst_mask */
8a9e7a91 230 TRUE), /* pcrel_offset */
73589c9d
CS		 231
232 HOWTO (R_OR1K_GOTPC_HI16, /* Type. */
233 16, /* Rightshift. */
234 2, /* Size (0 = byte, 1 = short, 2 = long). */
235 16, /* Bitsize. */
236 TRUE, /* PC_relative. */
237 0, /* Bitpos. */
238 complain_overflow_dont, /* Complain on overflow. */
239 bfd_elf_generic_reloc, /* Special Function. */
240 "R_OR1K_GOTPC_HI16", /* Name. */
241 FALSE, /* Partial Inplace. */
242 0, /* Source Mask. */
243 0xffff, /* Dest Mask. */
244 TRUE), /* PC relative offset? */
245
246 HOWTO (R_OR1K_GOTPC_LO16, /* Type. */
247 0, /* Rightshift. */
248 2, /* Size (0 = byte, 1 = short, 2 = long). */
249 16, /* Bitsize. */
250 TRUE, /* PC_relative. */
251 0, /* Bitpos. */
252 complain_overflow_dont, /* Complain on overflow. */
253 bfd_elf_generic_reloc, /* Special Function. */
254 "R_OR1K_GOTPC_LO16", /* Name. */
255 FALSE, /* Partial Inplace. */
256 0, /* Source Mask. */
257 0xffff, /* Dest Mask. */
258 TRUE), /* PC relative offset? */
259
260 HOWTO (R_OR1K_GOT16, /* type */
261 0, /* rightshift */
262 2, /* size (0 = byte, 1 = short, 2 = long) */
263 16, /* bitsize */
264 FALSE, /* pc_relative */
265 0, /* bitpos */
266 complain_overflow_signed, /* complain_on_overflow */
267 bfd_elf_generic_reloc, /* special_function */
268 "R_OR1K_GOT16", /* name */
269 FALSE, /* partial_inplace */
270 0, /* src_mask */
271 0xffff, /* dst_mask */
272 FALSE), /* pcrel_offset */
273
274 /* A 26 bit PLT relocation. Shifted by 2. */
275 HOWTO (R_OR1K_PLT26, /* Type. */
276 2, /* Rightshift. */
277 2, /* Size (0 = byte, 1 = short, 2 = long). */
278 26, /* Bitsize. */
279 TRUE, /* PC_relative. */
280 0, /* Bitpos. */
281 complain_overflow_dont, /* Complain on overflow. */
282 bfd_elf_generic_reloc,/* Special Function. */
283 "R_OR1K_PLT26", /* Name. */
284 FALSE, /* Partial Inplace. */
285 0, /* Source Mask. */
286 0x03ffffff, /* Dest Mask. */
287 TRUE), /* PC relative offset? */
288
289 HOWTO (R_OR1K_GOTOFF_HI16, /* type */
290 16, /* rightshift */
291 2, /* size (0 = byte, 1 = short, 2 = long) */
292 16, /* bitsize */
293 FALSE, /* pc_relative */
294 0, /* bitpos */
295 complain_overflow_dont, /* complain_on_overflow */
296 bfd_elf_generic_reloc, /* special_function */
297 "R_OR1K_GOTOFF_HI16", /* name */
298 FALSE, /* partial_inplace */
299 0x0, /* src_mask */
300 0xffff, /* dst_mask */
301 FALSE), /* pcrel_offset */
302
303 HOWTO (R_OR1K_GOTOFF_LO16, /* type */
304 0, /* rightshift */
305 2, /* size (0 = byte, 1 = short, 2 = long) */
306 16, /* bitsize */
307 FALSE, /* pc_relative */
308 0, /* bitpos */
309 complain_overflow_dont, /* complain_on_overflow */
310 bfd_elf_generic_reloc, /* special_function */
311 "R_OR1K_GOTOFF_LO16", /* name */
312 FALSE, /* partial_inplace */
313 0x0, /* src_mask */
314 0xffff, /* dst_mask */
315 FALSE), /* pcrel_offset */
316
317 HOWTO (R_OR1K_COPY, /* type */
318 0, /* rightshift */
319 2, /* size (0 = byte, 1 = short, 2 = long) */
320 32, /* bitsize */
321 FALSE, /* pc_relative */
322 0, /* bitpos */
323 complain_overflow_bitfield, /* complain_on_overflow */
324 bfd_elf_generic_reloc, /* special_function */
325 "R_OR1K_COPY", /* name */
326 FALSE, /* partial_inplace */
327 0xffffffff, /* src_mask */
328 0xffffffff, /* dst_mask */
329 FALSE), /* pcrel_offset */
330
331 HOWTO (R_OR1K_GLOB_DAT, /* type */
332 0, /* rightshift */
333 2, /* size (0 = byte, 1 = short, 2 = long) */
334 32, /* bitsize */
335 FALSE, /* pc_relative */
336 0, /* bitpos */
337 complain_overflow_bitfield, /* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_OR1K_GLOB_DAT", /* name */
340 FALSE, /* partial_inplace */
341 0xffffffff, /* src_mask */
342 0xffffffff, /* dst_mask */
343 FALSE), /* pcrel_offset */
344
345 HOWTO (R_OR1K_JMP_SLOT, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 32, /* bitsize */
349 FALSE, /* pc_relative */
350 0, /* bitpos */
351 complain_overflow_bitfield, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_OR1K_JMP_SLOT", /* name */
354 FALSE, /* partial_inplace */
355 0xffffffff, /* src_mask */
356 0xffffffff, /* dst_mask */
357 FALSE), /* pcrel_offset */
358
359 HOWTO (R_OR1K_RELATIVE, /* type */
360 0, /* rightshift */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
362 32, /* bitsize */
363 FALSE, /* pc_relative */
364 0, /* bitpos */
365 complain_overflow_bitfield, /* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
367 "R_OR1K_RELATIVE", /* name */
368 FALSE, /* partial_inplace */
369 0xffffffff, /* src_mask */
370 0xffffffff, /* dst_mask */
371 FALSE), /* pcrel_offset */
372
373 HOWTO (R_OR1K_TLS_GD_HI16, /* type */
374 16, /* rightshift */
375 2, /* size (0 = byte, 1 = short, 2 = long) */
376 16, /* bitsize */
377 FALSE, /* pc_relative */
378 0, /* bitpos */
379 complain_overflow_dont, /* complain_on_overflow */
380 bfd_elf_generic_reloc, /* special_function */
381 "R_OR1K_TLS_GD_HI16", /* name */
382 FALSE, /* partial_inplace */
383 0x0, /* src_mask */
384 0xffff, /* dst_mask */
385 FALSE), /* pcrel_offset */
386
387 HOWTO (R_OR1K_TLS_GD_LO16, /* type */
388 0, /* rightshift */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
390 16, /* bitsize */
391 FALSE, /* pc_relative */
392 0, /* bitpos */
393 complain_overflow_dont, /* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_OR1K_TLS_GD_LO16", /* name */
396 FALSE, /* partial_inplace */
397 0x0, /* src_mask */
398 0xffff, /* dst_mask */
399 FALSE), /* pcrel_offset */
400
401 HOWTO (R_OR1K_TLS_LDM_HI16, /* type */
402 16, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 16, /* bitsize */
405 FALSE, /* pc_relative */
406 0, /* bitpos */
407 complain_overflow_dont, /* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_OR1K_TLS_LDM_HI16", /* name */
410 FALSE, /* partial_inplace */
411 0x0, /* src_mask */
412 0xffff, /* dst_mask */
413 FALSE), /* pcrel_offset */
414
415 HOWTO (R_OR1K_TLS_LDM_LO16, /* type */
416 0, /* rightshift */
417 2, /* size (0 = byte, 1 = short, 2 = long) */
418 16, /* bitsize */
419 FALSE, /* pc_relative */
420 0, /* bitpos */
421 complain_overflow_dont, /* complain_on_overflow */
422 bfd_elf_generic_reloc, /* special_function */
423 "R_OR1K_TLS_LDM_LO16", /* name */
424 FALSE, /* partial_inplace */
425 0x0, /* src_mask */
426 0xffff, /* dst_mask */
427 FALSE), /* pcrel_offset */
428
429 HOWTO (R_OR1K_TLS_LDO_HI16, /* type */
430 16, /* rightshift */
431 2, /* size (0 = byte, 1 = short, 2 = long) */
432 16, /* bitsize */
433 FALSE, /* pc_relative */
434 0, /* bitpos */
435 complain_overflow_dont, /* complain_on_overflow */
436 bfd_elf_generic_reloc, /* special_function */
437 "R_OR1K_TLS_LDO_HI16", /* name */
438 FALSE, /* partial_inplace */
439 0x0, /* src_mask */
440 0xffff, /* dst_mask */
441 FALSE), /* pcrel_offset */
442
443 HOWTO (R_OR1K_TLS_LDO_LO16, /* type */
444 0, /* rightshift */
445 2, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_dont, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_OR1K_TLS_LDO_LO16", /* name */
452 FALSE, /* partial_inplace */
453 0x0, /* src_mask */
454 0xffff, /* dst_mask */
455 FALSE), /* pcrel_offset */
456
457 HOWTO (R_OR1K_TLS_IE_HI16, /* type */
458 16, /* rightshift */
459 2, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_dont, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_OR1K_TLS_IE_HI16", /* name */
466 FALSE, /* partial_inplace */
467 0x0, /* src_mask */
468 0xffff, /* dst_mask */
469 FALSE), /* pcrel_offset */
470
471 HOWTO (R_OR1K_TLS_IE_LO16, /* type */
472 0, /* rightshift */
473 2, /* size (0 = byte, 1 = short, 2 = long) */
474 16, /* bitsize */
475 FALSE, /* pc_relative */
476 0, /* bitpos */
477 complain_overflow_dont, /* complain_on_overflow */
478 bfd_elf_generic_reloc, /* special_function */
479 "R_OR1K_TLS_IE_LO16", /* name */
480 FALSE, /* partial_inplace */
481 0x0, /* src_mask */
482 0xffff, /* dst_mask */
483 FALSE), /* pcrel_offset */
484
485 HOWTO (R_OR1K_TLS_LE_HI16, /* type */
486 16, /* rightshift */
487 2, /* size (0 = byte, 1 = short, 2 = long) */
488 16, /* bitsize */
489 FALSE, /* pc_relative */
490 0, /* bitpos */
491 complain_overflow_dont, /* complain_on_overflow */
492 bfd_elf_generic_reloc, /* special_function */
493 "R_OR1K_TLS_LE_HI16", /* name */
494 FALSE, /* partial_inplace */
495 0x0, /* src_mask */
496 0xffff, /* dst_mask */
497 FALSE), /* pcrel_offset */
498
499 HOWTO (R_OR1K_TLS_LE_LO16, /* type */
500 0, /* rightshift */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
502 16, /* bitsize */
503 FALSE, /* pc_relative */
504 0, /* bitpos */
505 complain_overflow_dont, /* complain_on_overflow */
506 bfd_elf_generic_reloc, /* special_function */
507 "R_OR1K_TLS_LE_LO16", /* name */
508 FALSE, /* partial_inplace */
509 0x0, /* src_mask */
510 0xffff, /* dst_mask */
511 FALSE), /* pcrel_offset */
512
513};
514
515/* Map BFD reloc types to Or1k ELF reloc types. */
516
517struct or1k_reloc_map
518{
519 bfd_reloc_code_real_type bfd_reloc_val;
520 unsigned int or1k_reloc_val;
521};
522
523static const struct or1k_reloc_map or1k_reloc_map[] =
524{
525 { BFD_RELOC_NONE, R_OR1K_NONE },
526 { BFD_RELOC_32, R_OR1K_32 },
527 { BFD_RELOC_16, R_OR1K_16 },
528 { BFD_RELOC_8, R_OR1K_8 },
529 { BFD_RELOC_LO16, R_OR1K_LO_16_IN_INSN },
530 { BFD_RELOC_HI16, R_OR1K_HI_16_IN_INSN },
531 { BFD_RELOC_OR1K_REL_26, R_OR1K_INSN_REL_26 },
532 { BFD_RELOC_VTABLE_ENTRY, R_OR1K_GNU_VTENTRY },
533 { BFD_RELOC_VTABLE_INHERIT, R_OR1K_GNU_VTINHERIT },
534 { BFD_RELOC_32_PCREL, R_OR1K_32_PCREL },
535 { BFD_RELOC_16_PCREL, R_OR1K_16_PCREL },
536 { BFD_RELOC_8_PCREL, R_OR1K_8_PCREL },
537 { BFD_RELOC_OR1K_GOTPC_HI16, R_OR1K_GOTPC_HI16 },
538 { BFD_RELOC_OR1K_GOTPC_LO16, R_OR1K_GOTPC_LO16 },
539 { BFD_RELOC_OR1K_GOT16, R_OR1K_GOT16 },
540 { BFD_RELOC_OR1K_PLT26, R_OR1K_PLT26 },
541 { BFD_RELOC_OR1K_GOTOFF_HI16, R_OR1K_GOTOFF_HI16 },
542 { BFD_RELOC_OR1K_GOTOFF_LO16, R_OR1K_GOTOFF_LO16 },
543 { BFD_RELOC_OR1K_GLOB_DAT, R_OR1K_GLOB_DAT },
544 { BFD_RELOC_OR1K_COPY, R_OR1K_COPY },
545 { BFD_RELOC_OR1K_JMP_SLOT, R_OR1K_JMP_SLOT },
546 { BFD_RELOC_OR1K_RELATIVE, R_OR1K_RELATIVE },
547 { BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 },
548 { BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 },
549 { BFD_RELOC_OR1K_TLS_LDM_HI16, R_OR1K_TLS_LDM_HI16 },
550 { BFD_RELOC_OR1K_TLS_LDM_LO16, R_OR1K_TLS_LDM_LO16 },
551 { BFD_RELOC_OR1K_TLS_LDO_HI16, R_OR1K_TLS_LDO_HI16 },
552 { BFD_RELOC_OR1K_TLS_LDO_LO16, R_OR1K_TLS_LDO_LO16 },
553 { BFD_RELOC_OR1K_TLS_IE_HI16, R_OR1K_TLS_IE_HI16 },
554 { BFD_RELOC_OR1K_TLS_IE_LO16, R_OR1K_TLS_IE_LO16 },
555 { BFD_RELOC_OR1K_TLS_LE_HI16, R_OR1K_TLS_LE_HI16 },
556 { BFD_RELOC_OR1K_TLS_LE_LO16, R_OR1K_TLS_LE_LO16 },
557};
558
559/* The linker needs to keep track of the number of relocs that it
560 decides to copy as dynamic relocs in check_relocs for each symbol.
561 This is so that it can later discard them if they are found to be
562 unnecessary. We store the information in a field extending the
563 regular ELF linker hash table. */
564
565struct elf_or1k_dyn_relocs
566{
567 struct elf_or1k_dyn_relocs *next;
568
569 /* The input section of the reloc. */
570 asection *sec;
571
572 /* Total number of relocs copied for the input section. */
573 bfd_size_type count;
574
575 /* Number of pc-relative relocs copied for the input section. */
576 bfd_size_type pc_count;
577};
578
579#define TLS_UNKNOWN 0
580#define TLS_NONE 1
581#define TLS_GD 2
582#define TLS_LD 3
583#define TLS_IE 4
584#define TLS_LE 5
585
586/* ELF linker hash entry. */
587struct elf_or1k_link_hash_entry
588{
589 struct elf_link_hash_entry root;
590
591 /* Track dynamic relocs copied for this symbol. */
592 struct elf_or1k_dyn_relocs *dyn_relocs;
593
594 /* Track type of TLS access. */
595 unsigned char tls_type;
596};
597
598/* ELF object data. */
599struct elf_or1k_obj_tdata
600{
601 struct elf_obj_tdata root;
602
603 /* tls_type for each local got entry. */
604 unsigned char *local_tls_type;
605};
606
607#define elf_or1k_tdata(abfd) \
608 ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
609
610#define elf_or1k_local_tls_type(abfd) \
611 (elf_or1k_tdata (abfd)->local_tls_type)
612
613/* ELF linker hash table. */
614struct elf_or1k_link_hash_table
615{
616 struct elf_link_hash_table root;
617
73589c9d
CS		 618 /* Small local sym to section mapping cache. */
619 struct sym_cache sym_sec;
620};
621
622/* Get the ELF linker hash table from a link_info structure. */
623#define or1k_elf_hash_table(p) \
624 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
625 == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
626
627static bfd_boolean
628elf_or1k_mkobject (bfd *abfd)
629{
630 return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
631 OR1K_ELF_DATA);
632}
633
634/* Create an entry in an or1k ELF linker hash table. */
635
636static struct bfd_hash_entry *
637or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
638 struct bfd_hash_table *table,
639 const char *string)
640{
641 struct elf_or1k_link_hash_entry *ret =
642 (struct elf_or1k_link_hash_entry *) entry;
643
644 /* Allocate the structure if it has not already been allocated by a
645 subclass. */
646 if (ret == NULL)
647 ret = bfd_hash_allocate (table,
648 sizeof (struct elf_or1k_link_hash_entry));
649 if (ret == NULL)
650 return NULL;
651
652 /* Call the allocation method of the superclass. */
653 ret = ((struct elf_or1k_link_hash_entry *)
654 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
655 table, string));
656 if (ret != NULL)
657 {
658 struct elf_or1k_link_hash_entry *eh;
659
660 eh = (struct elf_or1k_link_hash_entry *) ret;
661 eh->dyn_relocs = NULL;
662 eh->tls_type = TLS_UNKNOWN;
663 }
664
665 return (struct bfd_hash_entry *) ret;
666}
667
668/* Create an or1k ELF linker hash table. */
669
670static struct bfd_link_hash_table *
671or1k_elf_link_hash_table_create (bfd *abfd)
672{
673 struct elf_or1k_link_hash_table *ret;
674 bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table);
675
676 ret = bfd_zmalloc (amt);
677 if (ret == NULL)
678 return NULL;
679
680 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
681 or1k_elf_link_hash_newfunc,
682 sizeof (struct elf_or1k_link_hash_entry),
683 OR1K_ELF_DATA))
684 {
685 free (ret);
686 return NULL;
687 }
688
689 return &ret->root.root;
690}
691
692static reloc_howto_type *
693or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
694 bfd_reloc_code_real_type code)
695{
696 unsigned int i;
697
0ba38529 698 for (i = ARRAY_SIZE (or1k_reloc_map); i--;)
73589c9d
CS		 699 if (or1k_reloc_map[i].bfd_reloc_val == code)
700 return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val];
701
702 return NULL;
703}
704
705static reloc_howto_type *
706or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
707 const char *r_name)
708{
709 unsigned int i;
710
711 for (i = 0;
712 i < (sizeof (or1k_elf_howto_table)
713 / sizeof (or1k_elf_howto_table[0]));
714 i++)
715 if (or1k_elf_howto_table[i].name != NULL
716 && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
717 return &or1k_elf_howto_table[i];
718
719 return NULL;
720}
721
722/* Set the howto pointer for an Or1k ELF reloc. */
723
724static void
725or1k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
726 arelent * cache_ptr,
727 Elf_Internal_Rela * dst)
728{
729 unsigned int r_type;
730
731 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC		 732 if (r_type >= (unsigned int) R_OR1K_max)
733 {
695344c0 734 /* xgettext:c-format */
64d29018 735 _bfd_error_handler (_("%B: invalid OR1K reloc number: %d"), abfd, r_type);
5860e3f8
NC		 736 r_type = 0;
737 }
73589c9d
CS		 738 cache_ptr->howto = & or1k_elf_howto_table[r_type];
739}
740
741
742/* Return the relocation value for @tpoff relocations.. */
743static bfd_vma
744tpoff (struct bfd_link_info *info, bfd_vma address)
745{
746 /* If tls_sec is NULL, we should have signalled an error already. */
747 if (elf_hash_table (info)->tls_sec == NULL)
748 return 0;
749
750 /* The thread pointer on or1k stores the address after the TCB where
751 the data is, just compute the difference. No need to compensate
752 for the size of TCB. */
753 return (address - elf_hash_table (info)->tls_sec->vma);
754}
755
756/* Relocate an Or1k ELF section.
757
758 The RELOCATE_SECTION function is called by the new ELF backend linker
759 to handle the relocations for a section.
760
761 The relocs are always passed as Rela structures; if the section
762 actually uses Rel structures, the r_addend field will always be
763 zero.
764
765 This function is responsible for adjusting the section contents as
766 necessary, and (if using Rela relocs and generating a relocatable
767 output file) adjusting the reloc addend as necessary.
768
769 This function does not have to worry about setting the reloc
770 address or the reloc symbol index.
771
772 LOCAL_SYMS is a pointer to the swapped in local symbols.
773
774 LOCAL_SECTIONS is an array giving the section in the input file
775 corresponding to the st_shndx field of each local symbol.
776
777 The global hash table entry for the global symbols can be found
778 via elf_sym_hashes (input_bfd).
779
780 When generating relocatable output, this function must handle
781 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
782 going to be the section symbol corresponding to the output
783 section, which means that the addend must be adjusted
784 accordingly. */
785
786static bfd_boolean
787or1k_elf_relocate_section (bfd *output_bfd,
788 struct bfd_link_info *info,
789 bfd *input_bfd,
790 asection *input_section,
791 bfd_byte *contents,
792 Elf_Internal_Rela *relocs,
793 Elf_Internal_Sym *local_syms,
794 asection **local_sections)
795{
796 Elf_Internal_Shdr *symtab_hdr;
797 struct elf_link_hash_entry **sym_hashes;
798 Elf_Internal_Rela *rel;
799 Elf_Internal_Rela *relend;
800 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
801 bfd *dynobj;
802 asection *sreloc;
803 bfd_vma *local_got_offsets;
804 asection *sgot;
805
806 if (htab == NULL)
807 return FALSE;
808
809 dynobj = htab->root.dynobj;
810 local_got_offsets = elf_local_got_offsets (input_bfd);
811
812 sreloc = elf_section_data (input_section)->sreloc;
813
ce558b89 814 sgot = htab->root.sgot;
73589c9d
CS		 815
816 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
817 sym_hashes = elf_sym_hashes (input_bfd);
818 relend = relocs + input_section->reloc_count;
819
820 for (rel = relocs; rel < relend; rel++)
821 {
822 reloc_howto_type *howto;
823 unsigned long r_symndx;
824 Elf_Internal_Sym *sym;
825 asection *sec;
826 struct elf_link_hash_entry *h;
827 bfd_vma relocation;
828 bfd_reloc_status_type r;
829 const char *name = NULL;
830 int r_type;
831
832 r_type = ELF32_R_TYPE (rel->r_info);
833 r_symndx = ELF32_R_SYM (rel->r_info);
834
835 if (r_type == R_OR1K_GNU_VTINHERIT
836 || r_type == R_OR1K_GNU_VTENTRY)
837 continue;
838
839 if (r_type < 0 || r_type >= (int) R_OR1K_max)
840 {
841 bfd_set_error (bfd_error_bad_value);
842 return FALSE;
843 }
844
845 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
846 h = NULL;
847 sym = NULL;
848 sec = NULL;
849
850 if (r_symndx < symtab_hdr->sh_info)
851 {
852 sym = local_syms + r_symndx;
853 sec = local_sections[r_symndx];
854 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
855
856 name = bfd_elf_string_from_elf_section
857 (input_bfd, symtab_hdr->sh_link, sym->st_name);
858 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
859 }
860 else
861 {
862 bfd_boolean unresolved_reloc, warned, ignored;
863
864 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
865 r_symndx, symtab_hdr, sym_hashes,
866 h, sec, relocation,
867 unresolved_reloc, warned, ignored);
868 }
869
870 if (sec != NULL && discarded_section (sec))
871 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
872 rel, 1, relend, howto, 0, contents);
873
0e1862bb 874 if (bfd_link_relocatable (info))
73589c9d
CS		 875 continue;
876
877 switch (howto->type)
878 {
879 case R_OR1K_PLT26:
880 {
ce558b89 881 if (htab->root.splt != NULL && h != NULL
73589c9d
CS		 882 && h->plt.offset != (bfd_vma) -1)
883 {
ce558b89
AM		 884 relocation = (htab->root.splt->output_section->vma
885 + htab->root.splt->output_offset
73589c9d
CS		 886 + h->plt.offset);
887 }
888 break;
889 }
890
891 case R_OR1K_GOT16:
892 /* Relocation is to the entry for this symbol in the global
893 offset table. */
894 BFD_ASSERT (sgot != NULL);
895 if (h != NULL)
896 {
897 bfd_boolean dyn;
898 bfd_vma off;
899
900 off = h->got.offset;
901 BFD_ASSERT (off != (bfd_vma) -1);
902
903 dyn = htab->root.dynamic_sections_created;
0e1862bb
L		 904 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
905 bfd_link_pic (info),
906 h)
907 || (bfd_link_pic (info)
ffccb7af 908 && SYMBOL_REFERENCES_LOCAL (info, h)))
73589c9d
CS		 909 {
910 /* This is actually a static link, or it is a
911 -Bsymbolic link and the symbol is defined
912 locally, or the symbol was forced to be local
913 because of a version file. We must initialize
914 this entry in the global offset table. Since the
915 offset must always be a multiple of 4, we use the
916 least significant bit to record whether we have
917 initialized it already.
918
919 When doing a dynamic link, we create a .rela.got
920 relocation entry to initialize the value. This
921 is done in the finish_dynamic_symbol routine. */
922 if ((off & 1) != 0)
923 off &= ~1;
924 else
925 {
926 /* Write entry in GOT. */
927 bfd_put_32 (output_bfd, relocation,
928 sgot->contents + off);
929 /* Mark GOT entry as having been written. */
930 h->got.offset |= 1;
931 }
932 }
933
934 relocation = sgot->output_offset + off;
935 }
936 else
937 {
938 bfd_vma off;
939 bfd_byte *loc;
940
941 BFD_ASSERT (local_got_offsets != NULL
942 && local_got_offsets[r_symndx] != (bfd_vma) -1);
943
944 /* Get offset into GOT table. */
945 off = local_got_offsets[r_symndx];
946
947 /* The offset must always be a multiple of 4. We use
948 the least significant bit to record whether we have
949 already processed this entry. */
950 if ((off & 1) != 0)
951 off &= ~1;
952 else
953 {
954 /* Write entry in GOT. */
955 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
0e1862bb 956 if (bfd_link_pic (info))
73589c9d
CS		 957 {
958 asection *srelgot;
959 Elf_Internal_Rela outrel;
960
961 /* We need to generate a R_OR1K_RELATIVE reloc
962 for the dynamic linker. */
ce558b89 963 srelgot = htab->root.srelgot;
73589c9d
CS		 964 BFD_ASSERT (srelgot != NULL);
965
966 outrel.r_offset = (sgot->output_section->vma
967 + sgot->output_offset
968 + off);
969 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
970 outrel.r_addend = relocation;
971 loc = srelgot->contents;
972 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
973 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
974 ++srelgot->reloc_count;
975 }
976
977 local_got_offsets[r_symndx] |= 1;
978 }
979 relocation = sgot->output_offset + off;
980 }
981
982 /* Addend should be zero. */
983 if (rel->r_addend != 0)
4eca0228 984 _bfd_error_handler
73589c9d
CS		 985 (_("internal error: addend should be zero for R_OR1K_GOT16"));
986
987 break;
988
989 case R_OR1K_GOTOFF_LO16:
990 case R_OR1K_GOTOFF_HI16:
991 /* Relocation is offset from GOT. */
992 BFD_ASSERT (sgot != NULL);
eacfca90
AM		 993 relocation
994 -= (htab->root.hgot->root.u.def.value
995 + htab->root.hgot->root.u.def.section->output_offset
996 + htab->root.hgot->root.u.def.section->output_section->vma);
73589c9d
CS		 997 break;
998
999 case R_OR1K_INSN_REL_26:
1000 case R_OR1K_HI_16_IN_INSN:
1001 case R_OR1K_LO_16_IN_INSN:
1002 case R_OR1K_32:
1003 /* R_OR1K_16? */
1004 {
1005 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
1006 from removed linkonce sections, or sections discarded by
1007 a linker script. */
1008 if (r_symndx == STN_UNDEF
1009 || (input_section->flags & SEC_ALLOC) == 0)
1010 break;
1011
0e1862bb 1012 if ((bfd_link_pic (info)
73589c9d
CS		 1013 && (h == NULL
1014 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1015 || h->root.type != bfd_link_hash_undefweak)
ffccb7af
SK		 1016 && (howto->type != R_OR1K_INSN_REL_26
1017 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 1018 || (!bfd_link_pic (info)
73589c9d
CS		 1019 && h != NULL
1020 && h->dynindx != -1
1021 && !h->non_got_ref
1022 && ((h->def_dynamic
1023 && !h->def_regular)
1024 || h->root.type == bfd_link_hash_undefweak
1025 || h->root.type == bfd_link_hash_undefined)))
1026 {
1027 Elf_Internal_Rela outrel;
1028 bfd_byte *loc;
1029 bfd_boolean skip;
1030
1031 /* When generating a shared object, these relocations
1032 are copied into the output file to be resolved at run
1033 time. */
1034
1035 BFD_ASSERT (sreloc != NULL);
1036
1037 skip = FALSE;
1038
1039 outrel.r_offset =
1040 _bfd_elf_section_offset (output_bfd, info, input_section,
1041 rel->r_offset);
1042 if (outrel.r_offset == (bfd_vma) -1)
1043 skip = TRUE;
1044 else if (outrel.r_offset == (bfd_vma) -2)
1045 skip = TRUE;
1046 outrel.r_offset += (input_section->output_section->vma
1047 + input_section->output_offset);
1048
1049 if (skip)
1050 memset (&outrel, 0, sizeof outrel);
1051 /* h->dynindx may be -1 if the symbol was marked to
1052 become local. */
1053 else if (h != NULL
1054 && ((! info->symbolic && h->dynindx != -1)
1055 || !h->def_regular))
1056 {
1057 BFD_ASSERT (h->dynindx != -1);
1058 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1059 outrel.r_addend = rel->r_addend;
1060 }
1061 else
1062 {
1063 if (r_type == R_OR1K_32)
1064 {
1065 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1066 outrel.r_addend = relocation + rel->r_addend;
1067 }
1068 else
1069 {
1070 BFD_FAIL ();
4eca0228 1071 _bfd_error_handler
73589c9d
CS		 1072 (_("%B: probably compiled without -fPIC?"),
1073 input_bfd);
1074 bfd_set_error (bfd_error_bad_value);
1075 return FALSE;
1076 }
1077 }
1078
1079 loc = sreloc->contents;
1080 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1081 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1082 break;
1083 }
1084 break;
1085 }
1086
1087 case R_OR1K_TLS_LDM_HI16:
1088 case R_OR1K_TLS_LDM_LO16:
1089 case R_OR1K_TLS_LDO_HI16:
1090 case R_OR1K_TLS_LDO_LO16:
1091 /* TODO: implement support for local dynamic. */
1092 BFD_FAIL ();
4eca0228 1093 _bfd_error_handler
73589c9d
CS		 1094 (_("%B: support for local dynamic not implemented"),
1095 input_bfd);
1096 bfd_set_error (bfd_error_bad_value);
1097 return FALSE;
1098
1099
1100 case R_OR1K_TLS_GD_HI16:
1101 case R_OR1K_TLS_GD_LO16:
1102 case R_OR1K_TLS_IE_HI16:
1103 case R_OR1K_TLS_IE_LO16:
1104 {
1105 bfd_vma gotoff;
1106 Elf_Internal_Rela rela;
1107 bfd_byte *loc;
1108 int dynamic;
1109
230977a4
CS		 1110 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1111
73589c9d
CS		 1112 /* Mark as TLS related GOT entry by setting
1113 bit 2 as well as bit 1. */
1114 if (h != NULL)
1115 {
1116 gotoff = h->got.offset;
1117 h->got.offset |= 3;
1118 }
1119 else
1120 {
1121 gotoff = local_got_offsets[r_symndx];
1122 local_got_offsets[r_symndx] |= 3;
1123 }
1124
1125 /* Only process the relocation once. */
1126 if (gotoff & 1)
1127 {
1128 relocation = sgot->output_offset + (gotoff & ~3);
1129 break;
1130 }
1131
1132 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1133 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1134
1135 /* Dynamic entries will require relocations. if we do not need
1136 them we will just use the default R_OR1K_NONE and
1137 not set anything. */
0e1862bb 1138 dynamic = bfd_link_pic (info)
73589c9d
CS		 1139 || (sec && (sec->flags & SEC_ALLOC) != 0
1140 && h != NULL
1141 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1142
1143 /* Shared GD. */
1144 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
1145 || howto->type == R_OR1K_TLS_GD_LO16))
1146 {
1147 int i;
1148
1149 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1150 for (i = 0; i < 2; ++i)
1151 {
1152 rela.r_offset = sgot->output_section->vma +
1153 sgot->output_offset + gotoff + i*4;
1154 if (h != NULL && h->dynindx != -1)
1155 {
1156 rela.r_info = ELF32_R_INFO (h->dynindx,
1157 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1158 rela.r_addend = 0;
1159 }
1160 else
1161 {
1162 rela.r_info = ELF32_R_INFO (0,
1163 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1164 rela.r_addend = tpoff (info, relocation);
1165 }
1166
1167 loc = sreloc->contents;
1168 loc += sreloc->reloc_count++ *
1169 sizeof (Elf32_External_Rela);
1170
1171 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1172 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1173 }
1174 }
1175 /* Static GD. */
1176 else if (howto->type == R_OR1K_TLS_GD_HI16
1177 || howto->type == R_OR1K_TLS_GD_LO16)
1178 {
1179 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1180 bfd_put_32 (output_bfd, tpoff (info, relocation),
1181 sgot->contents + gotoff + 4);
1182 }
1183 /* Shared IE. */
1184 else if (dynamic)
1185 {
1186 /* Add TPOFF GOT and rela entries. */
1187 rela.r_offset = sgot->output_section->vma +
1188 sgot->output_offset + gotoff;
1189 if (h != NULL && h->dynindx != -1)
1190 {
1191 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1192 rela.r_addend = 0;
1193 }
1194 else
1195 {
1196 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1197 rela.r_addend = tpoff (info, relocation);
1198 }
1199
1200 loc = sreloc->contents;
1201 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1202
1203 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1204 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1205 }
1206 /* Static IE. */
1207 else
1208 {
1209 bfd_put_32 (output_bfd, tpoff (info, relocation),
1210 sgot->contents + gotoff);
1211 }
1212 relocation = sgot->output_offset + gotoff;
1213 break;
1214 }
1215 case R_OR1K_TLS_LE_HI16:
1216 case R_OR1K_TLS_LE_LO16:
1217
1218 /* Relocation is offset from TP. */
1219 relocation = tpoff (info, relocation);
1220 break;
1221
1222 case R_OR1K_TLS_DTPMOD:
1223 case R_OR1K_TLS_DTPOFF:
1224 case R_OR1K_TLS_TPOFF:
1225 /* These are resolved dynamically on load and shouldn't
1226 be used as linker input. */
1227 BFD_FAIL ();
4eca0228 1228 _bfd_error_handler
73589c9d
CS		 1229 (_("%B: will not resolve runtime TLS relocation"),
1230 input_bfd);
1231 bfd_set_error (bfd_error_bad_value);
1232 return FALSE;
1233
1234 default:
1235 break;
1236 }
1237 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1238 rel->r_offset, relocation, rel->r_addend);
1239
1240 if (r != bfd_reloc_ok)
1241 {
1242 const char *msg = NULL;
1243
1244 switch (r)
1245 {
1246 case bfd_reloc_overflow:
1a72702b 1247 (*info->callbacks->reloc_overflow)
73589c9d
CS		 1248 (info, (h ? &h->root : NULL), name, howto->name,
1249 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1250 break;
1251
1252 case bfd_reloc_undefined:
1a72702b 1253 (*info->callbacks->undefined_symbol)
73589c9d
CS		 1254 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1255 break;
1256
1257 case bfd_reloc_outofrange:
1258 msg = _("internal error: out of range error");
1259 break;
1260
1261 case bfd_reloc_notsupported:
1262 msg = _("internal error: unsupported relocation error");
1263 break;
1264
1265 case bfd_reloc_dangerous:
1266 msg = _("internal error: dangerous relocation");
1267 break;
1268
1269 default:
1270 msg = _("internal error: unknown error");
1271 break;
1272 }
1273
1274 if (msg)
1a72702b
AM		 1275 (*info->callbacks->warning) (info, msg, name, input_bfd,
1276 input_section, rel->r_offset);
73589c9d
CS		 1277 }
1278 }
1279
1280 return TRUE;
1281}
1282
1283/* Return the section that should be marked against GC for a given
1284 relocation. */
1285
1286static asection *
1287or1k_elf_gc_mark_hook (asection *sec,
1288 struct bfd_link_info *info,
1289 Elf_Internal_Rela *rel,
1290 struct elf_link_hash_entry *h,
1291 Elf_Internal_Sym *sym)
1292{
1293 if (h != NULL)
1294 switch (ELF32_R_TYPE (rel->r_info))
1295 {
1296 case R_OR1K_GNU_VTINHERIT:
1297 case R_OR1K_GNU_VTENTRY:
1298 return NULL;
1299 }
1300
1301 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1302}
1303
73589c9d
CS		 1304/* Look through the relocs for a section during the first phase. */
1305
1306static bfd_boolean
1307or1k_elf_check_relocs (bfd *abfd,
1308 struct bfd_link_info *info,
1309 asection *sec,
1310 const Elf_Internal_Rela *relocs)
1311{
1312 Elf_Internal_Shdr *symtab_hdr;
1313 struct elf_link_hash_entry **sym_hashes;
1314 const Elf_Internal_Rela *rel;
1315
1316 const Elf_Internal_Rela *rel_end;
1317 struct elf_or1k_link_hash_table *htab;
1318 bfd *dynobj;
1319 asection *sreloc = NULL;
1320
0e1862bb 1321 if (bfd_link_relocatable (info))
73589c9d
CS		 1322 return TRUE;
1323
1324 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1325 sym_hashes = elf_sym_hashes (abfd);
1326
1327 htab = or1k_elf_hash_table (info);
1328 if (htab == NULL)
1329 return FALSE;
1330
1331 dynobj = htab->root.dynobj;
1332
1333 rel_end = relocs + sec->reloc_count;
1334 for (rel = relocs; rel < rel_end; rel++)
1335 {
1336 struct elf_link_hash_entry *h;
1337 unsigned long r_symndx;
1338 unsigned char tls_type;
1339
1340 r_symndx = ELF32_R_SYM (rel->r_info);
1341 if (r_symndx < symtab_hdr->sh_info)
1342 h = NULL;
1343 else
1344 {
1345 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1346 while (h->root.type == bfd_link_hash_indirect
1347 || h->root.type == bfd_link_hash_warning)
1348 h = (struct elf_link_hash_entry *) h->root.u.i.link;
73589c9d
CS		 1349 }
1350
1351 switch (ELF32_R_TYPE (rel->r_info))
1352 {
1353 case R_OR1K_TLS_GD_HI16:
1354 case R_OR1K_TLS_GD_LO16:
1355 tls_type = TLS_GD;
1356 break;
1357 case R_OR1K_TLS_LDM_HI16:
1358 case R_OR1K_TLS_LDM_LO16:
1359 case R_OR1K_TLS_LDO_HI16:
1360 case R_OR1K_TLS_LDO_LO16:
1361 tls_type = TLS_LD;
1362 break;
1363 case R_OR1K_TLS_IE_HI16:
1364 case R_OR1K_TLS_IE_LO16:
1365 tls_type = TLS_IE;
1366 break;
1367 case R_OR1K_TLS_LE_HI16:
1368 case R_OR1K_TLS_LE_LO16:
1369 tls_type = TLS_LE;
1370 break;
1371 default:
1372 tls_type = TLS_NONE;
1373 }
1374
1375 /* Record TLS type. */
1376 if (h != NULL)
1377 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
1378 else
1379 {
1380 unsigned char *local_tls_type;
1381
1382 /* This is a TLS type record for a local symbol. */
1383 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1384 if (local_tls_type == NULL)
1385 {
1386 bfd_size_type size;
1387
1388 size = symtab_hdr->sh_info;
1389 local_tls_type = bfd_zalloc (abfd, size);
1390 if (local_tls_type == NULL)
1391 return FALSE;
1392 elf_or1k_local_tls_type (abfd) = local_tls_type;
1393 }
1394 local_tls_type[r_symndx] = tls_type;
1395 }
1396
1397 switch (ELF32_R_TYPE (rel->r_info))
1398 {
1399 /* This relocation describes the C++ object vtable hierarchy.
1400 Reconstruct it for later use during GC. */
1401 case R_OR1K_GNU_VTINHERIT:
1402 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1403 return FALSE;
1404 break;
1405
1406 /* This relocation describes which C++ vtable entries are actually
1407 used. Record for later use during GC. */
1408 case R_OR1K_GNU_VTENTRY:
1409 BFD_ASSERT (h != NULL);
1410 if (h != NULL
1411 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1412 return FALSE;
1413 break;
1414
1415 /* This relocation requires .plt entry. */
1416 case R_OR1K_PLT26:
1417 if (h != NULL)
1418 {
1419 h->needs_plt = 1;
1420 h->plt.refcount += 1;
1421 }
1422 break;
1423
1424 case R_OR1K_GOT16:
1425 case R_OR1K_GOTOFF_HI16:
1426 case R_OR1K_GOTOFF_LO16:
1427 case R_OR1K_TLS_GD_HI16:
1428 case R_OR1K_TLS_GD_LO16:
1429 case R_OR1K_TLS_IE_HI16:
1430 case R_OR1K_TLS_IE_LO16:
ce558b89 1431 if (htab->root.sgot == NULL)
73589c9d
CS		 1432 {
1433 if (dynobj == NULL)
1434 htab->root.dynobj = dynobj = abfd;
ce558b89 1435 if (!_bfd_elf_create_got_section (dynobj, info))
73589c9d
CS		 1436 return FALSE;
1437 }
1438
73589c9d
CS		 1439 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1440 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1441 {
1442 if (h != NULL)
1443 h->got.refcount += 1;
1444 else
1445 {
1446 bfd_signed_vma *local_got_refcounts;
1447
1448 /* This is a global offset table entry for a local symbol. */
1449 local_got_refcounts = elf_local_got_refcounts (abfd);
1450 if (local_got_refcounts == NULL)
1451 {
1452 bfd_size_type size;
1453
1454 size = symtab_hdr->sh_info;
1455 size *= sizeof (bfd_signed_vma);
1456 local_got_refcounts = bfd_zalloc (abfd, size);
1457 if (local_got_refcounts == NULL)
1458 return FALSE;
1459 elf_local_got_refcounts (abfd) = local_got_refcounts;
1460 }
1461 local_got_refcounts[r_symndx] += 1;
1462 }
1463 }
1464 break;
1465
1466 case R_OR1K_INSN_REL_26:
1467 case R_OR1K_HI_16_IN_INSN:
1468 case R_OR1K_LO_16_IN_INSN:
1469 case R_OR1K_32:
1470 /* R_OR1K_16? */
1471 {
0e1862bb 1472 if (h != NULL && !bfd_link_pic (info))
73589c9d
CS		 1473 {
1474 /* We may need a copy reloc. */
1475 h->non_got_ref = 1;
1476
1477 /* We may also need a .plt entry. */
1478 h->plt.refcount += 1;
1479 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1480 h->pointer_equality_needed = 1;
1481 }
1482
1483 /* If we are creating a shared library, and this is a reloc
1484 against a global symbol, or a non PC relative reloc
1485 against a local symbol, then we need to copy the reloc
1486 into the shared library. However, if we are linking with
1487 -Bsymbolic, we do not need to copy a reloc against a
1488 global symbol which is defined in an object we are
1489 including in the link (i.e., DEF_REGULAR is set). At
1490 this point we have not seen all the input files, so it is
1491 possible that DEF_REGULAR is not set now but will be set
1492 later (it is never cleared). In case of a weak definition,
1493 DEF_REGULAR may be cleared later by a strong definition in
1494 a shared library. We account for that possibility below by
1495 storing information in the relocs_copied field of the hash
1496 table entry. A similar situation occurs when creating
1497 shared libraries and symbol visibility changes render the
1498 symbol local.
1499
1500 If on the other hand, we are creating an executable, we
1501 may need to keep relocations for symbols satisfied by a
1502 dynamic library if we manage to avoid copy relocs for the
1503 symbol. */
1504
0e1862bb 1505 if ((bfd_link_pic (info)
73589c9d
CS		 1506 && (sec->flags & SEC_ALLOC) != 0
1507 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1508 || (h != NULL
ffccb7af 1509 && (!SYMBOLIC_BIND (info, h)
73589c9d
CS		 1510 || h->root.type == bfd_link_hash_defweak
1511 || !h->def_regular))))
0e1862bb 1512 || (!bfd_link_pic (info)
73589c9d
CS		 1513 && (sec->flags & SEC_ALLOC) != 0
1514 && h != NULL
1515 && (h->root.type == bfd_link_hash_defweak
1516 || !h->def_regular)))
1517 {
1518 struct elf_or1k_dyn_relocs *p;
1519 struct elf_or1k_dyn_relocs **head;
1520
1521 /* When creating a shared object, we must copy these
1522 relocs into the output file. We create a reloc
1523 section in dynobj and make room for the reloc. */
1524 if (sreloc == NULL)
1525 {
1526 const char *name;
1527 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1528 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1529
1530 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1531 if (name == NULL)
1532 return FALSE;
1533
1534 if (strncmp (name, ".rela", 5) != 0
1535 || strcmp (bfd_get_section_name (abfd, sec),
1536 name + 5) != 0)
1537 {
4eca0228 1538 _bfd_error_handler
695344c0 1539 /* xgettext:c-format */
73589c9d
CS		 1540 (_("%B: bad relocation section name `%s\'"),
1541 abfd, name);
1542 }
1543
1544 if (htab->root.dynobj == NULL)
1545 htab->root.dynobj = abfd;
1546 dynobj = htab->root.dynobj;
1547
1548 sreloc = bfd_get_section_by_name (dynobj, name);
1549 if (sreloc == NULL)
1550 {
1551 sreloc = _bfd_elf_make_dynamic_reloc_section
1552 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1553
1554 if (sreloc == NULL)
1555 return FALSE;
1556 }
1557 elf_section_data (sec)->sreloc = sreloc;
1558 }
1559
1560 /* If this is a global symbol, we count the number of
1561 relocations we need for this symbol. */
1562 if (h != NULL)
1563 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1564 else
1565 {
1566 /* Track dynamic relocs needed for local syms too.
1567 We really need local syms available to do this
1568 easily. Oh well. */
1569
1570 asection *s;
1571 Elf_Internal_Sym *isym;
1572 void *vpp;
1573
1574 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1575 abfd, r_symndx);
1576 if (isym == NULL)
1577 return FALSE;
1578
1579 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1580 if (s == NULL)
1581 return FALSE;
1582
1583 vpp = &elf_section_data (s)->local_dynrel;
1584 head = (struct elf_or1k_dyn_relocs **) vpp;
1585 }
1586
1587 p = *head;
1588 if (p == NULL || p->sec != sec)
1589 {
1590 bfd_size_type amt = sizeof *p;
1591 p = ((struct elf_or1k_dyn_relocs *)
1592 bfd_alloc (htab->root.dynobj, amt));
1593 if (p == NULL)
1594 return FALSE;
1595 p->next = *head;
1596 *head = p;
1597 p->sec = sec;
1598 p->count = 0;
1599 p->pc_count = 0;
1600 }
1601
1602 p->count += 1;
1603 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1604 p->pc_count += 1;
1605 }
1606 }
1607 break;
1608 }
1609 }
1610
1611 return TRUE;
1612}
1613
1614/* Finish up the dynamic sections. */
1615
1616static bfd_boolean
1617or1k_elf_finish_dynamic_sections (bfd *output_bfd,
1618 struct bfd_link_info *info)
1619{
1620 bfd *dynobj;
1621 asection *sdyn, *sgot;
1622 struct elf_or1k_link_hash_table *htab;
1623
1624 htab = or1k_elf_hash_table (info);
1625 if (htab == NULL)
1626 return FALSE;
1627
1628 dynobj = htab->root.dynobj;
1629
ce558b89 1630 sgot = htab->root.sgotplt;
73589c9d
CS		 1631 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1632
1633 if (htab->root.dynamic_sections_created)
1634 {
1635 asection *splt;
1636 Elf32_External_Dyn *dyncon, *dynconend;
1637
1638 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1639
1640 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1641 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1642
1643 for (; dyncon < dynconend; dyncon++)
1644 {
1645 Elf_Internal_Dyn dyn;
1646 asection *s;
1647
1648 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1649
1650 switch (dyn.d_tag)
1651 {
1652 default:
1653 continue;
1654
1655 case DT_PLTGOT:
ce558b89 1656 s = htab->root.sgotplt;
4ade44b7 1657 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
73589c9d
CS		 1658 break;
1659
1660 case DT_JMPREL:
ce558b89 1661 s = htab->root.srelplt;
4ade44b7 1662 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
73589c9d
CS		 1663 break;
1664
1665 case DT_PLTRELSZ:
ce558b89 1666 s = htab->root.srelplt;
73589c9d
CS		 1667 dyn.d_un.d_val = s->size;
1668 break;
73589c9d
CS		 1669 }
1670 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1671 }
1672
1673
1674 /* Fill in the first entry in the procedure linkage table. */
ce558b89 1675 splt = htab->root.splt;
73589c9d
CS		 1676 if (splt && splt->size > 0)
1677 {
0e1862bb 1678 if (bfd_link_pic (info))
73589c9d
CS		 1679 {
1680 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1681 splt->contents);
1682 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1683 splt->contents + 4);
1684 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1685 splt->contents + 8);
1686 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1687 splt->contents + 12);
1688 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1689 splt->contents + 16);
1690 }
1691 else
1692 {
1693 unsigned long addr;
1694 /* addr = .got + 4 */
1695 addr = sgot->output_section->vma + sgot->output_offset + 4;
1696 bfd_put_32 (output_bfd,
1697 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1698 splt->contents);
1699 bfd_put_32 (output_bfd,
1700 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1701 splt->contents + 4);
1702 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1703 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1704 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1705 }
1706
1707 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1708 }
1709 }
1710
1711 /* Set the first entry in the global offset table to the address of
1712 the dynamic section. */
1713 if (sgot && sgot->size > 0)
1714 {
1715 if (sdyn == NULL)
1716 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1717 else
1718 bfd_put_32 (output_bfd,
1719 sdyn->output_section->vma + sdyn->output_offset,
1720 sgot->contents);
1721 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1722 }
1723
ce558b89
AM		 1724 if (htab->root.sgot && htab->root.sgot->size > 0)
1725 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
73589c9d
CS		 1726
1727 return TRUE;
1728}
1729
1730/* Finish up dynamic symbol handling. We set the contents of various
1731 dynamic sections here. */
1732
1733static bfd_boolean
1734or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
1735 struct bfd_link_info *info,
1736 struct elf_link_hash_entry *h,
1737 Elf_Internal_Sym *sym)
1738{
1739 struct elf_or1k_link_hash_table *htab;
1740 bfd_byte *loc;
1741
1742 htab = or1k_elf_hash_table (info);
1743 if (htab == NULL)
1744 return FALSE;
1745
1746 if (h->plt.offset != (bfd_vma) -1)
1747 {
1748 asection *splt;
1749 asection *sgot;
1750 asection *srela;
1751
1752 bfd_vma plt_index;
1753 bfd_vma got_offset;
1754 bfd_vma got_addr;
1755 Elf_Internal_Rela rela;
1756
1757 /* This symbol has an entry in the procedure linkage table. Set
1758 it up. */
1759 BFD_ASSERT (h->dynindx != -1);
1760
ce558b89
AM		 1761 splt = htab->root.splt;
1762 sgot = htab->root.sgotplt;
1763 srela = htab->root.srelplt;
73589c9d
CS		 1764 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1765
1766 /* Get the index in the procedure linkage table which
1767 corresponds to this symbol. This is the index of this symbol
1768 in all the symbols for which we are making plt entries. The
1769 first entry in the procedure linkage table is reserved. */
1770 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1771
1772 /* Get the offset into the .got table of the entry that
1773 corresponds to this function. Each .got entry is 4 bytes.
1774 The first three are reserved. */
1775 got_offset = (plt_index + 3) * 4;
1776 got_addr = got_offset;
1777
1778 /* Fill in the entry in the procedure linkage table. */
0e1862bb 1779 if (! bfd_link_pic (info))
73589c9d 1780 {
ce558b89
AM		 1781 got_addr += htab->root.sgotplt->output_section->vma
1782 + htab->root.sgotplt->output_offset;
73589c9d
CS		 1783 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1784 splt->contents + h->plt.offset);
1785 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1786 splt->contents + h->plt.offset + 4);
1787 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1788 splt->contents + h->plt.offset + 8);
1789 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1790 splt->contents + h->plt.offset + 12);
1791 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1792 | plt_index * sizeof (Elf32_External_Rela),
1793 splt->contents + h->plt.offset + 16);
1794 }
1795 else
1796 {
1797 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1798 splt->contents + h->plt.offset);
1799 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1800 | plt_index * sizeof (Elf32_External_Rela),
1801 splt->contents + h->plt.offset + 4);
1802 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1803 splt->contents + h->plt.offset + 8);
1804 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1805 splt->contents + h->plt.offset + 12);
1806 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1807 splt->contents + h->plt.offset + 16);
1808 }
1809
1810 /* Fill in the entry in the global offset table. */
1811 bfd_put_32 (output_bfd,
1812 (splt->output_section->vma
1813 + splt->output_offset), /* Same offset. */
1814 sgot->contents + got_offset);
1815
1816 /* Fill in the entry in the .rela.plt section. */
1817 rela.r_offset = (sgot->output_section->vma
1818 + sgot->output_offset
1819 + got_offset);
1820 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1821 rela.r_addend = 0;
1822 loc = srela->contents;
1823 loc += plt_index * sizeof (Elf32_External_Rela);
1824 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1825
1826 if (!h->def_regular)
1827 {
1828 /* Mark the symbol as undefined, rather than as defined in
1829 the .plt section. Leave the value alone. */
1830 sym->st_shndx = SHN_UNDEF;
1831 }
1832
1833 }
1834
1835 if (h->got.offset != (bfd_vma) -1
1836 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1837 {
1838 asection *sgot;
1839 asection *srela;
1840 Elf_Internal_Rela rela;
1841
1842 /* This symbol has an entry in the global offset table. Set it
1843 up. */
ce558b89
AM		 1844 sgot = htab->root.sgot;
1845 srela = htab->root.srelgot;
73589c9d
CS		 1846 BFD_ASSERT (sgot != NULL && srela != NULL);
1847
1848 rela.r_offset = (sgot->output_section->vma
1849 + sgot->output_offset
1850 + (h->got.offset &~ 1));
1851
1852 /* If this is a -Bsymbolic link, and the symbol is defined
1853 locally, we just want to emit a RELATIVE reloc. Likewise if
1854 the symbol was forced to be local because of a version file.
1855 The entry in the global offset table will already have been
1856 initialized in the relocate_section function. */
0e1862bb 1857 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
73589c9d
CS		 1858 {
1859 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1860 rela.r_addend = (h->root.u.def.value
1861 + h->root.u.def.section->output_section->vma
1862 + h->root.u.def.section->output_offset);
1863 }
1864 else
1865 {
1866 BFD_ASSERT ((h->got.offset & 1) == 0);
1867 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1868 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1869 rela.r_addend = 0;
1870 }
1871
1872 loc = srela->contents;
1873 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1874 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1875 ++srela->reloc_count;
1876 }
1877
1878 if (h->needs_copy)
1879 {
1880 asection *s;
1881 Elf_Internal_Rela rela;
1882
1883 /* This symbols needs a copy reloc. Set it up. */
1884 BFD_ASSERT (h->dynindx != -1
1885 && (h->root.type == bfd_link_hash_defined
1886 || h->root.type == bfd_link_hash_defweak));
1887
73589c9d
CS		 1888 rela.r_offset = (h->root.u.def.value
1889 + h->root.u.def.section->output_section->vma
1890 + h->root.u.def.section->output_offset);
1891 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
1892 rela.r_addend = 0;
afbf7e8e 1893 if (h->root.u.def.section == htab->root.sdynrelro)
5474d94f
AM		 1894 s = htab->root.sreldynrelro;
1895 else
1896 s = htab->root.srelbss;
1897 loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
73589c9d
CS		 1898 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1899 ++s->reloc_count;
1900 }
1901
1902 /* Mark some specially defined symbols as absolute. */
1903 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1904 || h == htab->root.hgot)
1905 sym->st_shndx = SHN_ABS;
1906
1907 return TRUE;
1908}
1909
1910static enum elf_reloc_type_class
1911or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1912 const asection *rel_sec ATTRIBUTE_UNUSED,
1913 const Elf_Internal_Rela *rela)
1914{
1915 switch ((int) ELF32_R_TYPE (rela->r_info))
1916 {
1917 case R_OR1K_RELATIVE: return reloc_class_relative;
1918 case R_OR1K_JMP_SLOT: return reloc_class_plt;
1919 case R_OR1K_COPY: return reloc_class_copy;
1920 default: return reloc_class_normal;
1921 }
1922}
1923
63c1f59d
AM		 1924/* Find dynamic relocs for H that apply to read-only sections. */
1925
1926static asection *
1927readonly_dynrelocs (struct elf_link_hash_entry *h)
1928{
1929 struct elf_or1k_dyn_relocs *p;
1930 struct elf_or1k_link_hash_entry *eh = (struct elf_or1k_link_hash_entry *) h;
1931
1932 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1933 {
1934 asection *s = p->sec->output_section;
1935
1936 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1937 return p->sec;
1938 }
1939 return NULL;
1940}
1941
73589c9d
CS		 1942/* Adjust a symbol defined by a dynamic object and referenced by a
1943 regular object. The current definition is in some section of the
1944 dynamic object, but we're not including those sections. We have to
1945 change the definition to something the rest of the link can
1946 understand. */
1947
1948static bfd_boolean
1949or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1950 struct elf_link_hash_entry *h)
1951{
1952 struct elf_or1k_link_hash_table *htab;
1953 struct elf_or1k_link_hash_entry *eh;
1954 struct elf_or1k_dyn_relocs *p;
1955 bfd *dynobj;
5474d94f 1956 asection *s, *srel;
73589c9d
CS		 1957
1958 dynobj = elf_hash_table (info)->dynobj;
1959
1960 /* Make sure we know what is going on here. */
1961 BFD_ASSERT (dynobj != NULL
1962 && (h->needs_plt
60d67dc8 1963 || h->is_weakalias
73589c9d
CS		 1964 || (h->def_dynamic
1965 && h->ref_regular
1966 && !h->def_regular)));
1967
1968 /* If this is a function, put it in the procedure linkage table. We
1969 will fill in the contents of the procedure linkage table later,
1970 when we know the address of the .got section. */
1971 if (h->type == STT_FUNC
1972 || h->needs_plt)
1973 {
0e1862bb 1974 if (! bfd_link_pic (info)
73589c9d
CS		 1975 && !h->def_dynamic
1976 && !h->ref_dynamic
1977 && h->root.type != bfd_link_hash_undefweak
1978 && h->root.type != bfd_link_hash_undefined)
1979 {
1980 /* This case can occur if we saw a PLT reloc in an input
1981 file, but the symbol was never referred to by a dynamic
1982 object. In such a case, we don't actually need to build
1983 a procedure linkage table, and we can just do a PCREL
1984 reloc instead. */
1985 h->plt.offset = (bfd_vma) -1;
1986 h->needs_plt = 0;
1987 }
1988
1989 return TRUE;
1990 }
1991 else
1992 h->plt.offset = (bfd_vma) -1;
1993
1994 /* If this is a weak symbol, and there is a real definition, the
1995 processor independent code will have arranged for us to see the
1996 real definition first, and we can just use the same value. */
60d67dc8 1997 if (h->is_weakalias)
73589c9d 1998 {
60d67dc8
AM		 1999 struct elf_link_hash_entry *def = weakdef (h);
2000 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2001 h->root.u.def.section = def->root.u.def.section;
2002 h->root.u.def.value = def->root.u.def.value;
73589c9d
CS		 2003 return TRUE;
2004 }
2005
2006 /* This is a reference to a symbol defined by a dynamic object which
2007 is not a function. */
2008
2009 /* If we are creating a shared library, we must presume that the
2010 only references to the symbol are via the global offset table.
2011 For such cases we need not do anything here; the relocations will
2012 be handled correctly by relocate_section. */
0e1862bb 2013 if (bfd_link_pic (info))
73589c9d
CS		 2014 return TRUE;
2015
2016 /* If there are no references to this symbol that do not use the
2017 GOT, we don't need to generate a copy reloc. */
2018 if (!h->non_got_ref)
2019 return TRUE;
2020
2021 /* If -z nocopyreloc was given, we won't generate them either. */
2022 if (info->nocopyreloc)
2023 {
2024 h->non_got_ref = 0;
2025 return TRUE;
2026 }
2027
2028 eh = (struct elf_or1k_link_hash_entry *) h;
2029 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2030 {
2031 s = p->sec->output_section;
2032 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
2033 break;
2034 }
2035
2036 /* If we didn't find any dynamic relocs in sections which needs the
2037 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2038 the copy reloc. */
2039 if (p == NULL)
2040 {
2041 h->non_got_ref = 0;
2042 return TRUE;
2043 }
2044
2045 /* We must allocate the symbol in our .dynbss section, which will
2046 become part of the .bss section of the executable. There will be
2047 an entry for this symbol in the .dynsym section. The dynamic
2048 object will contain position independent code, so all references
2049 from the dynamic object to this symbol will go through the global
2050 offset table. The dynamic linker will use the .dynsym entry to
2051 determine the address it must put in the global offset table, so
2052 both the dynamic object and the regular object will refer to the
2053 same memory location for the variable. */
2054
2055 htab = or1k_elf_hash_table (info);
2056 if (htab == NULL)
2057 return FALSE;
2058
73589c9d
CS		 2059 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2060 to copy the initial value out of the dynamic object and into the
2061 runtime process image. We need to remember the offset into the
2062 .rela.bss section we are going to use. */
5474d94f 2063 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
73589c9d 2064 {
5474d94f
AM		 2065 s = htab->root.sdynrelro;
2066 srel = htab->root.sreldynrelro;
2067 }
2068 else
2069 {
2070 s = htab->root.sdynbss;
9d19e4fd 2071 srel = htab->root.srelbss;
5474d94f
AM		 2072 }
2073 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2074 {
73589c9d
CS		 2075 srel->size += sizeof (Elf32_External_Rela);
2076 h->needs_copy = 1;
2077 }
2078
6cabe1ea 2079 return _bfd_elf_adjust_dynamic_copy (info, h, s);
73589c9d
CS		 2080}
2081
2082/* Allocate space in .plt, .got and associated reloc sections for
2083 dynamic relocs. */
2084
2085static bfd_boolean
2086allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2087{
2088 struct bfd_link_info *info;
2089 struct elf_or1k_link_hash_table *htab;
2090 struct elf_or1k_link_hash_entry *eh;
2091 struct elf_or1k_dyn_relocs *p;
2092
2093 if (h->root.type == bfd_link_hash_indirect)
2094 return TRUE;
2095
2096 info = (struct bfd_link_info *) inf;
2097 htab = or1k_elf_hash_table (info);
2098 if (htab == NULL)
2099 return FALSE;
2100
2101 eh = (struct elf_or1k_link_hash_entry *) h;
2102
2103 if (htab->root.dynamic_sections_created
2104 && h->plt.refcount > 0)
2105 {
2106 /* Make sure this symbol is output as a dynamic symbol.
2107 Undefined weak syms won't yet be marked as dynamic. */
2108 if (h->dynindx == -1
2109 && !h->forced_local)
2110 {
2111 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2112 return FALSE;
2113 }
2114
0e1862bb 2115 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
73589c9d 2116 {
ce558b89 2117 asection *s = htab->root.splt;
73589c9d
CS		 2118
2119 /* If this is the first .plt entry, make room for the special
2120 first entry. */
2121 if (s->size == 0)
2122 s->size = PLT_ENTRY_SIZE;
2123
2124 h->plt.offset = s->size;
2125
2126 /* If this symbol is not defined in a regular file, and we are
2127 not generating a shared library, then set the symbol to this
2128 location in the .plt. This is required to make function
2129 pointers compare as equal between the normal executable and
2130 the shared library. */
0e1862bb 2131 if (! bfd_link_pic (info)
73589c9d
CS		 2132 && !h->def_regular)
2133 {
2134 h->root.u.def.section = s;
2135 h->root.u.def.value = h->plt.offset;
2136 }
2137
2138 /* Make room for this entry. */
2139 s->size += PLT_ENTRY_SIZE;
2140
2141 /* We also need to make an entry in the .got.plt section, which
2142 will be placed in the .got section by the linker script. */
ce558b89 2143 htab->root.sgotplt->size += 4;
73589c9d
CS		 2144
2145 /* We also need to make an entry in the .rel.plt section. */
ce558b89 2146 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
73589c9d
CS		 2147 }
2148 else
2149 {
2150 h->plt.offset = (bfd_vma) -1;
2151 h->needs_plt = 0;
2152 }
2153 }
2154 else
2155 {
2156 h->plt.offset = (bfd_vma) -1;
2157 h->needs_plt = 0;
2158 }
2159
2160 if (h->got.refcount > 0)
2161 {
2162 asection *s;
2163 bfd_boolean dyn;
2164 unsigned char tls_type;
2165
2166 /* Make sure this symbol is output as a dynamic symbol.
2167 Undefined weak syms won't yet be marked as dynamic. */
2168 if (h->dynindx == -1
2169 && !h->forced_local)
2170 {
2171 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2172 return FALSE;
2173 }
2174
ce558b89 2175 s = htab->root.sgot;
73589c9d
CS		 2176
2177 h->got.offset = s->size;
2178
2179 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2180
2181 /* TLS GD requires two GOT and two relocs. */
2182 if (tls_type == TLS_GD)
2183 s->size += 8;
2184 else
2185 s->size += 4;
2186 dyn = htab->root.dynamic_sections_created;
0e1862bb 2187 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
73589c9d
CS		 2188 {
2189 if (tls_type == TLS_GD)
ce558b89 2190 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
73589c9d 2191 else
ce558b89 2192 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
73589c9d
CS		 2193 }
2194 }
2195 else
2196 h->got.offset = (bfd_vma) -1;
2197
2198 if (eh->dyn_relocs == NULL)
2199 return TRUE;
2200
2201 /* In the shared -Bsymbolic case, discard space allocated for
2202 dynamic pc-relative relocs against symbols which turn out to be
2203 defined in regular objects. For the normal shared case, discard
2204 space for pc-relative relocs that have become local due to symbol
2205 visibility changes. */
2206
0e1862bb 2207 if (bfd_link_pic (info))
73589c9d 2208 {
ffccb7af 2209 if (SYMBOL_CALLS_LOCAL (info, h))
73589c9d
CS		 2210 {
2211 struct elf_or1k_dyn_relocs **pp;
2212
2213 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2214 {
2215 p->count -= p->pc_count;
2216 p->pc_count = 0;
2217 if (p->count == 0)
2218 *pp = p->next;
2219 else
2220 pp = &p->next;
2221 }
2222 }
2223
2224 /* Also discard relocs on undefined weak syms with non-default
2225 visibility. */
2226 if (eh->dyn_relocs != NULL
2227 && h->root.type == bfd_link_hash_undefweak)
2228 {
2229 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2230 eh->dyn_relocs = NULL;
2231
2232 /* Make sure undefined weak symbols are output as a dynamic
2233 symbol in PIEs. */
2234 else if (h->dynindx == -1
2235 && !h->forced_local)
2236 {
2237 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2238 return FALSE;
2239 }
2240 }
2241 }
2242 else
2243 {
2244 /* For the non-shared case, discard space for relocs against
2245 symbols which turn out to need copy relocs or are not
2246 dynamic. */
2247
2248 if (!h->non_got_ref
2249 && ((h->def_dynamic
2250 && !h->def_regular)
2251 || (htab->root.dynamic_sections_created
2252 && (h->root.type == bfd_link_hash_undefweak
2253 || h->root.type == bfd_link_hash_undefined))))
2254 {
2255 /* Make sure this symbol is output as a dynamic symbol.
2256 Undefined weak syms won't yet be marked as dynamic. */
2257 if (h->dynindx == -1
2258 && !h->forced_local)
2259 {
2260 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2261 return FALSE;
2262 }
2263
2264 /* If that succeeded, we know we'll be keeping all the
2265 relocs. */
2266 if (h->dynindx != -1)
2267 goto keep;
2268 }
2269
2270 eh->dyn_relocs = NULL;
2271
2272 keep: ;
2273 }
2274
2275 /* Finally, allocate space. */
2276 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2277 {
2278 asection *sreloc = elf_section_data (p->sec)->sreloc;
2279 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2280 }
2281
2282 return TRUE;
2283}
2284
63c1f59d
AM		 2285/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2286 read-only sections. */
73589c9d
CS		 2287
2288static bfd_boolean
63c1f59d 2289maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
73589c9d 2290{
63c1f59d 2291 asection *sec;
73589c9d 2292
63c1f59d
AM		 2293 if (h->root.type == bfd_link_hash_indirect)
2294 return TRUE;
73589c9d 2295
63c1f59d
AM		 2296 sec = readonly_dynrelocs (h);
2297 if (sec != NULL)
2298 {
2299 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
73589c9d 2300
63c1f59d
AM		 2301 info->flags |= DF_TEXTREL;
2302 info->callbacks->minfo
2303 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2304 sec->owner, h->root.root.string, sec);
73589c9d 2305
63c1f59d
AM		 2306 /* Not an error, just cut short the traversal. */
2307 return FALSE;
73589c9d
CS		 2308 }
2309 return TRUE;
2310}
2311
2312/* Set the sizes of the dynamic sections. */
2313
2314static bfd_boolean
2315or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2316 struct bfd_link_info *info)
2317{
2318 struct elf_or1k_link_hash_table *htab;
2319 bfd *dynobj;
2320 asection *s;
2321 bfd_boolean relocs;
2322 bfd *ibfd;
2323
2324 htab = or1k_elf_hash_table (info);
2325 if (htab == NULL)
2326 return FALSE;
2327
2328 dynobj = htab->root.dynobj;
2329 BFD_ASSERT (dynobj != NULL);
2330
2331 if (htab->root.dynamic_sections_created)
2332 {
2333 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2334 if (bfd_link_executable (info) && !info->nointerp)
73589c9d
CS		 2335 {
2336 s = bfd_get_section_by_name (dynobj, ".interp");
2337 BFD_ASSERT (s != NULL);
2338 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2339 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2340 }
2341 }
2342
2343 /* Set up .got offsets for local syms, and space for local dynamic
2344 relocs. */
c72f2fb2 2345 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
73589c9d
CS		 2346 {
2347 bfd_signed_vma *local_got;
2348 bfd_signed_vma *end_local_got;
2349 bfd_size_type locsymcount;
2350 Elf_Internal_Shdr *symtab_hdr;
2351 unsigned char *local_tls_type;
2352 asection *srel;
2353
2354 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2355 continue;
2356
2357 for (s = ibfd->sections; s != NULL; s = s->next)
2358 {
2359 struct elf_or1k_dyn_relocs *p;
2360
2361 for (p = ((struct elf_or1k_dyn_relocs *)
2362 elf_section_data (s)->local_dynrel);
2363 p != NULL;
2364 p = p->next)
2365 {
2366 if (! bfd_is_abs_section (p->sec)
2367 && bfd_is_abs_section (p->sec->output_section))
2368 {
2369 /* Input section has been discarded, either because
2370 it is a copy of a linkonce section or due to
2371 linker script /DISCARD/, so we'll be discarding
2372 the relocs too. */
2373 }
2374 else if (p->count != 0)
2375 {
2376 srel = elf_section_data (p->sec)->sreloc;
2377 srel->size += p->count * sizeof (Elf32_External_Rela);
2378 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2379 info->flags |= DF_TEXTREL;
2380 }
2381 }
2382 }
2383
2384 local_got = elf_local_got_refcounts (ibfd);
2385 if (!local_got)
2386 continue;
2387
2388 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2389 locsymcount = symtab_hdr->sh_info;
2390 end_local_got = local_got + locsymcount;
ce558b89
AM		 2391 s = htab->root.sgot;
2392 srel = htab->root.srelgot;
73589c9d
CS		 2393 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2394 for (; local_got < end_local_got; ++local_got)
2395 {
2396 if (*local_got > 0)
2397 {
2398 *local_got = s->size;
2399
2400 /* TLS GD requires two GOT and two relocs. */
2401 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2402 s->size += 8;
2403 else
2404 s->size += 4;
0e1862bb 2405 if (bfd_link_pic (info))
73589c9d
CS		 2406 {
2407 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2408 srel->size += 2 * sizeof (Elf32_External_Rela);
2409 else
2410 srel->size += sizeof (Elf32_External_Rela);
2411 }
2412 }
2413 else
2414
2415 *local_got = (bfd_vma) -1;
2416
2417 if (local_tls_type)
2418 ++local_tls_type;
2419 }
2420 }
2421
2422 /* Allocate global sym .plt and .got entries, and space for global
2423 sym dynamic relocs. */
2424 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2425
2426 /* We now have determined the sizes of the various dynamic sections.
2427 Allocate memory for them. */
2428 relocs = FALSE;
2429 for (s = dynobj->sections; s != NULL; s = s->next)
2430 {
2431 if ((s->flags & SEC_LINKER_CREATED) == 0)
2432 continue;
2433
ce558b89
AM		 2434 if (s == htab->root.splt
2435 || s == htab->root.sgot
2436 || s == htab->root.sgotplt
5474d94f
AM		 2437 || s == htab->root.sdynbss
2438 || s == htab->root.sdynrelro)
73589c9d
CS		 2439 {
2440 /* Strip this section if we don't need it; see the
2441 comment below. */
2442 }
2443 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2444 {
ce558b89 2445 if (s->size != 0 && s != htab->root.srelplt)
73589c9d
CS		 2446 relocs = TRUE;
2447
2448 /* We use the reloc_count field as a counter if we need
2449 to copy relocs into the output file. */
2450 s->reloc_count = 0;
2451 }
2452 else
2453 /* It's not one of our sections, so don't allocate space. */
2454 continue;
2455
2456 if (s->size == 0)
2457 {
2458 /* If we don't need this section, strip it from the
2459 output file. This is mostly to handle .rela.bss and
2460 .rela.plt. We must create both sections in
2461 create_dynamic_sections, because they must be created
2462 before the linker maps input sections to output
2463 sections. The linker does that before
2464 adjust_dynamic_symbol is called, and it is that
2465 function which decides whether anything needs to go
2466 into these sections. */
2467 s->flags |= SEC_EXCLUDE;
2468 continue;
2469 }
2470
2471 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2472 continue;
2473
2474 /* Allocate memory for the section contents. We use bfd_zalloc
2475 here in case unused entries are not reclaimed before the
2476 section's contents are written out. This should not happen,
2477 but this way if it does, we get a R_OR1K_NONE reloc instead
2478 of garbage. */
2479 s->contents = bfd_zalloc (dynobj, s->size);
2480
2481 if (s->contents == NULL)
2482 return FALSE;
2483 }
2484
2485 if (htab->root.dynamic_sections_created)
2486 {
2487 /* Add some entries to the .dynamic section. We fill in the
2488 values later, in or1k_elf_finish_dynamic_sections, but we
2489 must add the entries now so that we get the correct size for
2490 the .dynamic section. The DT_DEBUG entry is filled in by the
2491 dynamic linker and used by the debugger. */
2492#define add_dynamic_entry(TAG, VAL) \
2493 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2494
0e1862bb 2495 if (bfd_link_executable (info))
73589c9d
CS		 2496 {
2497 if (! add_dynamic_entry (DT_DEBUG, 0))
2498 return FALSE;
2499 }
2500
ce558b89 2501 if (htab->root.splt->size != 0)
73589c9d
CS		 2502 {
2503 if (! add_dynamic_entry (DT_PLTGOT, 0)
2504 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2505 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2506 || ! add_dynamic_entry (DT_JMPREL, 0))
2507 return FALSE;
2508 }
2509
2510 if (relocs)
2511 {
2512 if (! add_dynamic_entry (DT_RELA, 0)
2513 || ! add_dynamic_entry (DT_RELASZ, 0)
2514 || ! add_dynamic_entry (DT_RELAENT,
2515 sizeof (Elf32_External_Rela)))
2516 return FALSE;
2517
2518 /* If any dynamic relocs apply to a read-only section,
2519 then we need a DT_TEXTREL entry. */
2520 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2521 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
73589c9d
CS		 2522
2523 if ((info->flags & DF_TEXTREL) != 0)
2524 {
2525 if (! add_dynamic_entry (DT_TEXTREL, 0))
2526 return FALSE;
2527 }
2528 }
2529 }
2530
2531#undef add_dynamic_entry
2532 return TRUE;
2533}
2534
73589c9d
CS		 2535/* Copy the extra info we tack onto an elf_link_hash_entry. */
2536
2537static void
2538or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
2539 struct elf_link_hash_entry *dir,
2540 struct elf_link_hash_entry *ind)
2541{
2542 struct elf_or1k_link_hash_entry * edir;
2543 struct elf_or1k_link_hash_entry * eind;
2544
2545 edir = (struct elf_or1k_link_hash_entry *) dir;
2546 eind = (struct elf_or1k_link_hash_entry *) ind;
2547
2548 if (eind->dyn_relocs != NULL)
2549 {
2550 if (edir->dyn_relocs != NULL)
2551 {
2552 struct elf_or1k_dyn_relocs **pp;
2553 struct elf_or1k_dyn_relocs *p;
2554
2555 /* Add reloc counts against the indirect sym to the direct sym
2556 list. Merge any entries against the same section. */
2557 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2558 {
2559 struct elf_or1k_dyn_relocs *q;
2560
2561 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2562 if (q->sec == p->sec)
2563 {
2564 q->pc_count += p->pc_count;
2565 q->count += p->count;
2566 *pp = p->next;
2567 break;
2568 }
2569 if (q == NULL)
2570 pp = &p->next;
2571 }
2572 *pp = edir->dyn_relocs;
2573 }
2574
2575 edir->dyn_relocs = eind->dyn_relocs;
2576 eind->dyn_relocs = NULL;
2577 }
2578
2579 if (ind->root.type == bfd_link_hash_indirect)
2580 {
2581 if (dir->got.refcount <= 0)
2582 {
2583 edir->tls_type = eind->tls_type;
2584 eind->tls_type = TLS_UNKNOWN;
2585 }
2586 }
2587
2588 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2589}
2590
2591/* Set the right machine number. */
2592
2593static bfd_boolean
2594or1k_elf_object_p (bfd *abfd)
2595{
2596 unsigned long mach = bfd_mach_or1k;
2597
2598 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2599 mach = bfd_mach_or1knd;
2600
2601 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2602}
2603
2604/* Store the machine number in the flags field. */
2605
2606static void
2607or1k_elf_final_write_processing (bfd *abfd,
2608 bfd_boolean linker ATTRIBUTE_UNUSED)
2609{
2610 switch (bfd_get_mach (abfd))
2611 {
2612 default:
2613 case bfd_mach_or1k:
2614 break;
2615 case bfd_mach_or1knd:
2616 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2617 break;
2618 }
2619}
2620
2621static bfd_boolean
2622or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2623{
2624 BFD_ASSERT (!elf_flags_init (abfd)
2625 || elf_elfheader (abfd)->e_flags == flags);
2626
2627 elf_elfheader (abfd)->e_flags = flags;
2628 elf_flags_init (abfd) = TRUE;
2629 return TRUE;
2630}
2631
2632/* Make sure all input files are consistent with respect to
2633 EF_OR1K_NODELAY flag setting. */
2634
2635static bfd_boolean
50e03d47 2636elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
73589c9d 2637{
50e03d47 2638 bfd *obfd = info->output_bfd;
73589c9d
CS		 2639 flagword out_flags;
2640 flagword in_flags;
2641
2642 in_flags = elf_elfheader (ibfd)->e_flags;
2643 out_flags = elf_elfheader (obfd)->e_flags;
2644
2645 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2646 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2647 return TRUE;
2648
2649 if (!elf_flags_init (obfd))
2650 {
2651 elf_flags_init (obfd) = TRUE;
2652 elf_elfheader (obfd)->e_flags = in_flags;
2653
2654 return TRUE;
2655 }
2656
2657 if (in_flags == out_flags)
2658 return TRUE;
2659
2660 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2661 {
4eca0228 2662 _bfd_error_handler
73589c9d
CS		 2663 (_("%B: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
2664
2665 bfd_set_error (bfd_error_bad_value);
2666 return FALSE;
2667 }
2668
2669 return TRUE;
2670
2671}
2672
2673#define ELF_ARCH bfd_arch_or1k
2674#define ELF_MACHINE_CODE EM_OR1K
2675#define ELF_TARGET_ID OR1K_ELF_DATA
2676#define ELF_MAXPAGESIZE 0x2000
2677
6d00b590 2678#define TARGET_BIG_SYM or1k_elf32_vec
73589c9d
CS		 2679#define TARGET_BIG_NAME "elf32-or1k"
2680
2681#define elf_info_to_howto_rel NULL
2682#define elf_info_to_howto or1k_info_to_howto_rela
2683#define elf_backend_relocate_section or1k_elf_relocate_section
2684#define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
73589c9d
CS		 2685#define elf_backend_check_relocs or1k_elf_check_relocs
2686#define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2687#define elf_backend_can_gc_sections 1
2688#define elf_backend_rela_normal 1
2689
2690#define bfd_elf32_mkobject elf_or1k_mkobject
2691
2692#define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2693#define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2694#define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2695#define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2696
2697#define elf_backend_object_p or1k_elf_object_p
2698#define elf_backend_final_write_processing or1k_elf_final_write_processing
2699#define elf_backend_can_refcount 1
2700
2701#define elf_backend_plt_readonly 1
2702#define elf_backend_want_got_plt 1
2703#define elf_backend_want_plt_sym 0
2704#define elf_backend_got_header_size 12
64f52338 2705#define elf_backend_dtrel_excludes_plt 1
5474d94f 2706#define elf_backend_want_dynrelro 1
64f52338 2707
73589c9d
CS		 2708#define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2709#define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
9d19e4fd 2710#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
73589c9d
CS		 2711#define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2712#define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2713#define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2714#define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
2715
2716#include "elf32-target.h"
GDB Binutils - Deliverables
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