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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.
219d1afa 2 Copyright (C) 2001-2018 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. */
07d6d2b8
AM		 61 HOWTO (R_OR1K_NONE, /* type */
62 0, /* rightshift */
63 3, /* size (0 = byte, 1 = short, 2 = long) */
64 0, /* bitsize */
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 */
73589c9d
CS		 74
75 HOWTO (R_OR1K_32,
07d6d2b8
AM		 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 */
73589c9d
CS		 88
89 HOWTO (R_OR1K_16,
07d6d2b8
AM		 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 */
73589c9d
CS		 102
103 HOWTO (R_OR1K_8,
07d6d2b8
AM		 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 */
73589c9d
CS		 116
117 HOWTO (R_OR1K_LO_16_IN_INSN, /* type */
07d6d2b8
AM		 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 */
73589c9d
CS		 130
131 HOWTO (R_OR1K_HI_16_IN_INSN, /* type */
07d6d2b8
AM		 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 */
73589c9d
CS		 144
145 /* A PC relative 26 bit relocation, right shifted by 2. */
146 HOWTO (R_OR1K_INSN_REL_26, /* type */
07d6d2b8
AM		 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 */
73589c9d
CS		 159
160 /* GNU extension to record C++ vtable hierarchy. */
161 HOWTO (R_OR1K_GNU_VTINHERIT, /* type */
07d6d2b8
AM		 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 */
73589c9d
CS		 174
175 /* GNU extension to record C++ vtable member usage. */
176 HOWTO (R_OR1K_GNU_VTENTRY, /* type */
07d6d2b8
AM		 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 */
73589c9d
CS		 189
190 HOWTO (R_OR1K_32_PCREL,
07d6d2b8
AM		 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 */
202 TRUE), /* pcrel_offset */
73589c9d
CS		 203
204 HOWTO (R_OR1K_16_PCREL,
07d6d2b8
AM		 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 */
216 TRUE), /* pcrel_offset */
73589c9d
CS		 217
218 HOWTO (R_OR1K_8_PCREL,
07d6d2b8
AM		 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 */
230 TRUE), /* pcrel_offset */
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 */
73589c9d
CS		 273
274 /* A 26 bit PLT relocation. Shifted by 2. */
07d6d2b8
AM		 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 */
73589c9d
CS		 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{
07d6d2b8
AM		 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 },
73589c9d
CS		 541 { BFD_RELOC_OR1K_GOTOFF_HI16, R_OR1K_GOTOFF_HI16 },
542 { BFD_RELOC_OR1K_GOTOFF_LO16, R_OR1K_GOTOFF_LO16 },
07d6d2b8
AM		 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 },
73589c9d
CS		 547 { BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 },
548 { BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 },
07d6d2b8
AM		 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 },
73589c9d
CS		 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
73589c9d
CS		 559#define TLS_UNKNOWN 0
560#define TLS_NONE 1
07d6d2b8
AM		 561#define TLS_GD 2
562#define TLS_LD 3
563#define TLS_IE 4
564#define TLS_LE 5
73589c9d
CS		 565
566/* ELF linker hash entry. */
567struct elf_or1k_link_hash_entry
568{
569 struct elf_link_hash_entry root;
570
571 /* Track dynamic relocs copied for this symbol. */
3bf083ed 572 struct elf_dyn_relocs *dyn_relocs;
73589c9d
CS		 573
574 /* Track type of TLS access. */
575 unsigned char tls_type;
576};
577
578/* ELF object data. */
579struct elf_or1k_obj_tdata
580{
581 struct elf_obj_tdata root;
582
583 /* tls_type for each local got entry. */
584 unsigned char *local_tls_type;
585};
586
587#define elf_or1k_tdata(abfd) \
588 ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
589
590#define elf_or1k_local_tls_type(abfd) \
591 (elf_or1k_tdata (abfd)->local_tls_type)
592
593/* ELF linker hash table. */
594struct elf_or1k_link_hash_table
595{
596 struct elf_link_hash_table root;
597
73589c9d
CS		 598 /* Small local sym to section mapping cache. */
599 struct sym_cache sym_sec;
600};
601
602/* Get the ELF linker hash table from a link_info structure. */
603#define or1k_elf_hash_table(p) \
604 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
605 == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
606
607static bfd_boolean
608elf_or1k_mkobject (bfd *abfd)
609{
610 return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
07d6d2b8 611 OR1K_ELF_DATA);
73589c9d
CS		 612}
613
614/* Create an entry in an or1k ELF linker hash table. */
615
616static struct bfd_hash_entry *
617or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
07d6d2b8
AM		 618 struct bfd_hash_table *table,
619 const char *string)
73589c9d
CS		 620{
621 struct elf_or1k_link_hash_entry *ret =
622 (struct elf_or1k_link_hash_entry *) entry;
623
624 /* Allocate the structure if it has not already been allocated by a
625 subclass. */
626 if (ret == NULL)
627 ret = bfd_hash_allocate (table,
07d6d2b8 628 sizeof (struct elf_or1k_link_hash_entry));
73589c9d
CS		 629 if (ret == NULL)
630 return NULL;
631
632 /* Call the allocation method of the superclass. */
633 ret = ((struct elf_or1k_link_hash_entry *)
07d6d2b8
AM		 634 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
635 table, string));
73589c9d
CS		 636 if (ret != NULL)
637 {
638 struct elf_or1k_link_hash_entry *eh;
639
640 eh = (struct elf_or1k_link_hash_entry *) ret;
641 eh->dyn_relocs = NULL;
642 eh->tls_type = TLS_UNKNOWN;
643 }
644
645 return (struct bfd_hash_entry *) ret;
646}
647
648/* Create an or1k ELF linker hash table. */
649
650static struct bfd_link_hash_table *
651or1k_elf_link_hash_table_create (bfd *abfd)
652{
653 struct elf_or1k_link_hash_table *ret;
654 bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table);
655
656 ret = bfd_zmalloc (amt);
657 if (ret == NULL)
658 return NULL;
659
660 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
07d6d2b8
AM		 661 or1k_elf_link_hash_newfunc,
662 sizeof (struct elf_or1k_link_hash_entry),
663 OR1K_ELF_DATA))
73589c9d
CS		 664 {
665 free (ret);
666 return NULL;
667 }
668
669 return &ret->root.root;
670}
671
672static reloc_howto_type *
673or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
674 bfd_reloc_code_real_type code)
675{
676 unsigned int i;
677
0ba38529 678 for (i = ARRAY_SIZE (or1k_reloc_map); i--;)
73589c9d
CS		 679 if (or1k_reloc_map[i].bfd_reloc_val == code)
680 return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val];
681
682 return NULL;
683}
684
685static reloc_howto_type *
686or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
687 const char *r_name)
688{
689 unsigned int i;
690
691 for (i = 0;
692 i < (sizeof (or1k_elf_howto_table)
07d6d2b8 693 / sizeof (or1k_elf_howto_table[0]));
73589c9d
CS		 694 i++)
695 if (or1k_elf_howto_table[i].name != NULL
07d6d2b8 696 && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
73589c9d
CS		 697 return &or1k_elf_howto_table[i];
698
699 return NULL;
700}
701
702/* Set the howto pointer for an Or1k ELF reloc. */
703
704static void
0aa13fee 705or1k_info_to_howto_rela (bfd * abfd,
73589c9d
CS		 706 arelent * cache_ptr,
707 Elf_Internal_Rela * dst)
708{
709 unsigned int r_type;
710
711 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC		 712 if (r_type >= (unsigned int) R_OR1K_max)
713 {
695344c0 714 /* xgettext:c-format */
0aa13fee
AM		 715 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
716 abfd, r_type);
5860e3f8
NC		 717 r_type = 0;
718 }
73589c9d
CS		 719 cache_ptr->howto = & or1k_elf_howto_table[r_type];
720}
721
722
723/* Return the relocation value for @tpoff relocations.. */
724static bfd_vma
725tpoff (struct bfd_link_info *info, bfd_vma address)
726{
727 /* If tls_sec is NULL, we should have signalled an error already. */
728 if (elf_hash_table (info)->tls_sec == NULL)
729 return 0;
730
731 /* The thread pointer on or1k stores the address after the TCB where
732 the data is, just compute the difference. No need to compensate
733 for the size of TCB. */
734 return (address - elf_hash_table (info)->tls_sec->vma);
735}
736
737/* Relocate an Or1k ELF section.
738
739 The RELOCATE_SECTION function is called by the new ELF backend linker
740 to handle the relocations for a section.
741
742 The relocs are always passed as Rela structures; if the section
743 actually uses Rel structures, the r_addend field will always be
744 zero.
745
746 This function is responsible for adjusting the section contents as
747 necessary, and (if using Rela relocs and generating a relocatable
748 output file) adjusting the reloc addend as necessary.
749
750 This function does not have to worry about setting the reloc
751 address or the reloc symbol index.
752
753 LOCAL_SYMS is a pointer to the swapped in local symbols.
754
755 LOCAL_SECTIONS is an array giving the section in the input file
756 corresponding to the st_shndx field of each local symbol.
757
758 The global hash table entry for the global symbols can be found
759 via elf_sym_hashes (input_bfd).
760
761 When generating relocatable output, this function must handle
762 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
763 going to be the section symbol corresponding to the output
764 section, which means that the addend must be adjusted
765 accordingly. */
766
767static bfd_boolean
768or1k_elf_relocate_section (bfd *output_bfd,
769 struct bfd_link_info *info,
770 bfd *input_bfd,
771 asection *input_section,
772 bfd_byte *contents,
773 Elf_Internal_Rela *relocs,
774 Elf_Internal_Sym *local_syms,
775 asection **local_sections)
776{
777 Elf_Internal_Shdr *symtab_hdr;
778 struct elf_link_hash_entry **sym_hashes;
779 Elf_Internal_Rela *rel;
780 Elf_Internal_Rela *relend;
781 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
782 bfd *dynobj;
783 asection *sreloc;
784 bfd_vma *local_got_offsets;
785 asection *sgot;
786
787 if (htab == NULL)
788 return FALSE;
789
790 dynobj = htab->root.dynobj;
791 local_got_offsets = elf_local_got_offsets (input_bfd);
792
793 sreloc = elf_section_data (input_section)->sreloc;
794
ce558b89 795 sgot = htab->root.sgot;
73589c9d
CS		 796
797 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
798 sym_hashes = elf_sym_hashes (input_bfd);
799 relend = relocs + input_section->reloc_count;
800
801 for (rel = relocs; rel < relend; rel++)
802 {
803 reloc_howto_type *howto;
804 unsigned long r_symndx;
805 Elf_Internal_Sym *sym;
806 asection *sec;
807 struct elf_link_hash_entry *h;
808 bfd_vma relocation;
809 bfd_reloc_status_type r;
810 const char *name = NULL;
811 int r_type;
812
813 r_type = ELF32_R_TYPE (rel->r_info);
814 r_symndx = ELF32_R_SYM (rel->r_info);
815
816 if (r_type == R_OR1K_GNU_VTINHERIT
07d6d2b8
AM		 817 || r_type == R_OR1K_GNU_VTENTRY)
818 continue;
73589c9d
CS		 819
820 if (r_type < 0 || r_type >= (int) R_OR1K_max)
07d6d2b8
AM		 821 {
822 bfd_set_error (bfd_error_bad_value);
823 return FALSE;
824 }
73589c9d
CS		 825
826 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
827 h = NULL;
828 sym = NULL;
829 sec = NULL;
830
831 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8
AM		 832 {
833 sym = local_syms + r_symndx;
834 sec = local_sections[r_symndx];
835 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
836
837 name = bfd_elf_string_from_elf_section
838 (input_bfd, symtab_hdr->sh_link, sym->st_name);
839 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
840 }
73589c9d 841 else
07d6d2b8
AM		 842 {
843 bfd_boolean unresolved_reloc, warned, ignored;
73589c9d 844
07d6d2b8
AM		 845 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
846 r_symndx, symtab_hdr, sym_hashes,
847 h, sec, relocation,
848 unresolved_reloc, warned, ignored);
849 }
73589c9d
CS		 850
851 if (sec != NULL && discarded_section (sec))
07d6d2b8
AM		 852 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
853 rel, 1, relend, howto, 0, contents);
73589c9d 854
0e1862bb 855 if (bfd_link_relocatable (info))
07d6d2b8 856 continue;
73589c9d
CS		 857
858 switch (howto->type)
07d6d2b8
AM		 859 {
860 case R_OR1K_PLT26:
861 {
862 if (htab->root.splt != NULL && h != NULL
863 && h->plt.offset != (bfd_vma) -1)
864 {
865 relocation = (htab->root.splt->output_section->vma
866 + htab->root.splt->output_offset
867 + h->plt.offset);
868 }
869 break;
870 }
871
872 case R_OR1K_GOT16:
873 /* Relocation is to the entry for this symbol in the global
874 offset table. */
875 BFD_ASSERT (sgot != NULL);
876 if (h != NULL)
877 {
878 bfd_boolean dyn;
879 bfd_vma off;
880
881 off = h->got.offset;
882 BFD_ASSERT (off != (bfd_vma) -1);
883
884 dyn = htab->root.dynamic_sections_created;
885 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 886 bfd_link_pic (info),
887 h)
07d6d2b8
AM		 888 || (bfd_link_pic (info)
889 && SYMBOL_REFERENCES_LOCAL (info, h)))
890 {
891 /* This is actually a static link, or it is a
892 -Bsymbolic link and the symbol is defined
893 locally, or the symbol was forced to be local
894 because of a version file. We must initialize
895 this entry in the global offset table. Since the
896 offset must always be a multiple of 4, we use the
897 least significant bit to record whether we have
898 initialized it already.
899
900 When doing a dynamic link, we create a .rela.got
901 relocation entry to initialize the value. This
902 is done in the finish_dynamic_symbol routine. */
903 if ((off & 1) != 0)
904 off &= ~1;
905 else
906 {
907 /* Write entry in GOT. */
908 bfd_put_32 (output_bfd, relocation,
909 sgot->contents + off);
910 /* Mark GOT entry as having been written. */
911 h->got.offset |= 1;
912 }
913 }
914
915 relocation = sgot->output_offset + off;
916 }
917 else
918 {
919 bfd_vma off;
920 bfd_byte *loc;
921
922 BFD_ASSERT (local_got_offsets != NULL
923 && local_got_offsets[r_symndx] != (bfd_vma) -1);
924
925 /* Get offset into GOT table. */
926 off = local_got_offsets[r_symndx];
927
928 /* The offset must always be a multiple of 4. We use
929 the least significant bit to record whether we have
930 already processed this entry. */
931 if ((off & 1) != 0)
932 off &= ~1;
933 else
934 {
935 /* Write entry in GOT. */
936 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
937 if (bfd_link_pic (info))
938 {
939 asection *srelgot;
940 Elf_Internal_Rela outrel;
941
942 /* We need to generate a R_OR1K_RELATIVE reloc
943 for the dynamic linker. */
944 srelgot = htab->root.srelgot;
945 BFD_ASSERT (srelgot != NULL);
946
947 outrel.r_offset = (sgot->output_section->vma
948 + sgot->output_offset
949 + off);
950 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
951 outrel.r_addend = relocation;
952 loc = srelgot->contents;
953 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
954 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
955 ++srelgot->reloc_count;
956 }
957
958 local_got_offsets[r_symndx] |= 1;
959 }
960 relocation = sgot->output_offset + off;
961 }
962
963 /* Addend should be zero. */
964 if (rel->r_addend != 0)
4eca0228 965 _bfd_error_handler
07d6d2b8 966 (_("internal error: addend should be zero for R_OR1K_GOT16"));
73589c9d 967
07d6d2b8 968 break;
73589c9d 969
07d6d2b8
AM		 970 case R_OR1K_GOTOFF_LO16:
971 case R_OR1K_GOTOFF_HI16:
972 /* Relocation is offset from GOT. */
973 BFD_ASSERT (sgot != NULL);
eacfca90
AM		 974 relocation
975 -= (htab->root.hgot->root.u.def.value
976 + htab->root.hgot->root.u.def.section->output_offset
977 + htab->root.hgot->root.u.def.section->output_section->vma);
07d6d2b8
AM		 978 break;
979
980 case R_OR1K_INSN_REL_26:
981 case R_OR1K_HI_16_IN_INSN:
982 case R_OR1K_LO_16_IN_INSN:
983 case R_OR1K_32:
984 /* R_OR1K_16? */
985 {
986 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
987 from removed linkonce sections, or sections discarded by
988 a linker script. */
989 if (r_symndx == STN_UNDEF
990 || (input_section->flags & SEC_ALLOC) == 0)
991 break;
992
993 if ((bfd_link_pic (info)
994 && (h == NULL
995 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
996 || h->root.type != bfd_link_hash_undefweak)
ffccb7af
SK		 997 && (howto->type != R_OR1K_INSN_REL_26
998 || !SYMBOL_CALLS_LOCAL (info, h)))
07d6d2b8
AM		 999 || (!bfd_link_pic (info)
1000 && h != NULL
1001 && h->dynindx != -1
1002 && !h->non_got_ref
1003 && ((h->def_dynamic
1004 && !h->def_regular)
1005 || h->root.type == bfd_link_hash_undefweak
1006 || h->root.type == bfd_link_hash_undefined)))
1007 {
1008 Elf_Internal_Rela outrel;
1009 bfd_byte *loc;
1010 bfd_boolean skip;
1011
1012 /* When generating a shared object, these relocations
1013 are copied into the output file to be resolved at run
1014 time. */
1015
1016 BFD_ASSERT (sreloc != NULL);
1017
1018 skip = FALSE;
1019
1020 outrel.r_offset =
1021 _bfd_elf_section_offset (output_bfd, info, input_section,
1022 rel->r_offset);
1023 if (outrel.r_offset == (bfd_vma) -1)
1024 skip = TRUE;
1025 else if (outrel.r_offset == (bfd_vma) -2)
1026 skip = TRUE;
1027 outrel.r_offset += (input_section->output_section->vma
1028 + input_section->output_offset);
1029
1030 if (skip)
1031 memset (&outrel, 0, sizeof outrel);
1032 /* h->dynindx may be -1 if the symbol was marked to
1033 become local. */
1034 else if (h != NULL
1035 && ((! info->symbolic && h->dynindx != -1)
1036 || !h->def_regular))
1037 {
1038 BFD_ASSERT (h->dynindx != -1);
1039 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1040 outrel.r_addend = rel->r_addend;
1041 }
1042 else
1043 {
1044 if (r_type == R_OR1K_32)
1045 {
1046 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1047 outrel.r_addend = relocation + rel->r_addend;
1048 }
1049 else
1050 {
1051 BFD_FAIL ();
4eca0228 1052 _bfd_error_handler
871b3ab2 1053 (_("%pB: probably compiled without -fPIC?"),
07d6d2b8
AM		 1054 input_bfd);
1055 bfd_set_error (bfd_error_bad_value);
1056 return FALSE;
1057 }
1058 }
1059
1060 loc = sreloc->contents;
1061 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1062 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1063 break;
1064 }
1065 break;
1066 }
1067
1068 case R_OR1K_TLS_LDM_HI16:
1069 case R_OR1K_TLS_LDM_LO16:
1070 case R_OR1K_TLS_LDO_HI16:
1071 case R_OR1K_TLS_LDO_LO16:
1072 /* TODO: implement support for local dynamic. */
1073 BFD_FAIL ();
4eca0228 1074 _bfd_error_handler
871b3ab2 1075 (_("%pB: support for local dynamic not implemented"),
07d6d2b8
AM		 1076 input_bfd);
1077 bfd_set_error (bfd_error_bad_value);
1078 return FALSE;
1079
1080
1081 case R_OR1K_TLS_GD_HI16:
1082 case R_OR1K_TLS_GD_LO16:
1083 case R_OR1K_TLS_IE_HI16:
1084 case R_OR1K_TLS_IE_LO16:
1085 {
1086 bfd_vma gotoff;
1087 Elf_Internal_Rela rela;
1088 bfd_byte *loc;
1089 int dynamic;
1090
1091 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1092
1093 /* Mark as TLS related GOT entry by setting
1094 bit 2 as well as bit 1. */
1095 if (h != NULL)
1096 {
1097 gotoff = h->got.offset;
1098 h->got.offset |= 3;
1099 }
1100 else
1101 {
1102 gotoff = local_got_offsets[r_symndx];
1103 local_got_offsets[r_symndx] |= 3;
1104 }
1105
1106 /* Only process the relocation once. */
1107 if (gotoff & 1)
1108 {
1109 relocation = sgot->output_offset + (gotoff & ~3);
1110 break;
1111 }
1112
1113 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
73589c9d
CS		 1114 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1115
07d6d2b8
AM		 1116 /* Dynamic entries will require relocations. if we do not need
1117 them we will just use the default R_OR1K_NONE and
1118 not set anything. */
1119 dynamic = bfd_link_pic (info)
73589c9d
CS		 1120 || (sec && (sec->flags & SEC_ALLOC) != 0
1121 && h != NULL
1122 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1123
07d6d2b8
AM		 1124 /* Shared GD. */
1125 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
73589c9d 1126 || howto->type == R_OR1K_TLS_GD_LO16))
07d6d2b8
AM		 1127 {
1128 int i;
1129
1130 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1131 for (i = 0; i < 2; ++i)
1132 {
1133 rela.r_offset = sgot->output_section->vma +
1134 sgot->output_offset + gotoff + i*4;
1135 if (h != NULL && h->dynindx != -1)
1136 {
1137 rela.r_info = ELF32_R_INFO (h->dynindx,
1138 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1139 rela.r_addend = 0;
1140 }
1141 else
1142 {
1143 rela.r_info = ELF32_R_INFO (0,
1144 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1145 rela.r_addend = tpoff (info, relocation);
1146 }
1147
1148 loc = sreloc->contents;
1149 loc += sreloc->reloc_count++ *
1150 sizeof (Elf32_External_Rela);
1151
1152 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1153 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1154 }
1155 }
1156 /* Static GD. */
1157 else if (howto->type == R_OR1K_TLS_GD_HI16
1158 || howto->type == R_OR1K_TLS_GD_LO16)
1159 {
1160 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1161 bfd_put_32 (output_bfd, tpoff (info, relocation),
1162 sgot->contents + gotoff + 4);
1163 }
1164 /* Shared IE. */
1165 else if (dynamic)
1166 {
1167 /* Add TPOFF GOT and rela entries. */
1168 rela.r_offset = sgot->output_section->vma +
1169 sgot->output_offset + gotoff;
1170 if (h != NULL && h->dynindx != -1)
1171 {
1172 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1173 rela.r_addend = 0;
1174 }
1175 else
1176 {
1177 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1178 rela.r_addend = tpoff (info, relocation);
1179 }
1180
1181 loc = sreloc->contents;
1182 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1183
1184 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1185 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1186 }
1187 /* Static IE. */
1188 else
1189 {
1190 bfd_put_32 (output_bfd, tpoff (info, relocation),
73589c9d 1191 sgot->contents + gotoff);
07d6d2b8
AM		 1192 }
1193 relocation = sgot->output_offset + gotoff;
1194 break;
1195 }
1196 case R_OR1K_TLS_LE_HI16:
1197 case R_OR1K_TLS_LE_LO16:
1198
1199 /* Relocation is offset from TP. */
1200 relocation = tpoff (info, relocation);
1201 break;
1202
1203 case R_OR1K_TLS_DTPMOD:
1204 case R_OR1K_TLS_DTPOFF:
1205 case R_OR1K_TLS_TPOFF:
1206 /* These are resolved dynamically on load and shouldn't
1207 be used as linker input. */
1208 BFD_FAIL ();
4eca0228 1209 _bfd_error_handler
871b3ab2 1210 (_("%pB: will not resolve runtime TLS relocation"),
07d6d2b8
AM		 1211 input_bfd);
1212 bfd_set_error (bfd_error_bad_value);
1213 return FALSE;
1214
1215 default:
1216 break;
1217 }
73589c9d 1218 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
07d6d2b8 1219 rel->r_offset, relocation, rel->r_addend);
73589c9d
CS		 1220
1221 if (r != bfd_reloc_ok)
07d6d2b8
AM		 1222 {
1223 const char *msg = NULL;
73589c9d 1224
07d6d2b8
AM		 1225 switch (r)
1226 {
1227 case bfd_reloc_overflow:
1a72702b 1228 (*info->callbacks->reloc_overflow)
07d6d2b8
AM		 1229 (info, (h ? &h->root : NULL), name, howto->name,
1230 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1231 break;
73589c9d 1232
07d6d2b8 1233 case bfd_reloc_undefined:
1a72702b 1234 (*info->callbacks->undefined_symbol)
07d6d2b8
AM		 1235 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1236 break;
73589c9d 1237
07d6d2b8
AM		 1238 case bfd_reloc_outofrange:
1239 msg = _("internal error: out of range error");
1240 break;
73589c9d 1241
07d6d2b8
AM		 1242 case bfd_reloc_notsupported:
1243 msg = _("internal error: unsupported relocation error");
1244 break;
73589c9d 1245
07d6d2b8
AM		 1246 case bfd_reloc_dangerous:
1247 msg = _("internal error: dangerous relocation");
1248 break;
73589c9d 1249
07d6d2b8
AM		 1250 default:
1251 msg = _("internal error: unknown error");
1252 break;
1253 }
73589c9d 1254
07d6d2b8 1255 if (msg)
1a72702b
AM		 1256 (*info->callbacks->warning) (info, msg, name, input_bfd,
1257 input_section, rel->r_offset);
07d6d2b8 1258 }
73589c9d
CS		 1259 }
1260
1261 return TRUE;
1262}
1263
1264/* Return the section that should be marked against GC for a given
1265 relocation. */
1266
1267static asection *
1268or1k_elf_gc_mark_hook (asection *sec,
1269 struct bfd_link_info *info,
1270 Elf_Internal_Rela *rel,
1271 struct elf_link_hash_entry *h,
1272 Elf_Internal_Sym *sym)
1273{
1274 if (h != NULL)
1275 switch (ELF32_R_TYPE (rel->r_info))
1276 {
1277 case R_OR1K_GNU_VTINHERIT:
1278 case R_OR1K_GNU_VTENTRY:
07d6d2b8 1279 return NULL;
73589c9d
CS		 1280 }
1281
1282 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1283}
1284
73589c9d
CS		 1285/* Look through the relocs for a section during the first phase. */
1286
1287static bfd_boolean
1288or1k_elf_check_relocs (bfd *abfd,
1289 struct bfd_link_info *info,
1290 asection *sec,
1291 const Elf_Internal_Rela *relocs)
1292{
1293 Elf_Internal_Shdr *symtab_hdr;
1294 struct elf_link_hash_entry **sym_hashes;
1295 const Elf_Internal_Rela *rel;
1296
1297 const Elf_Internal_Rela *rel_end;
1298 struct elf_or1k_link_hash_table *htab;
1299 bfd *dynobj;
1300 asection *sreloc = NULL;
1301
0e1862bb 1302 if (bfd_link_relocatable (info))
73589c9d
CS		 1303 return TRUE;
1304
65281396
AM		 1305 /* Don't do anything special with non-loaded, non-alloced sections.
1306 In particular, any relocs in such sections should not affect GOT
1307 and PLT reference counting (ie. we don't allow them to create GOT
1308 or PLT entries), there's no possibility or desire to optimize TLS
1309 relocs, and there's not much point in propagating relocs to shared
1310 libs that the dynamic linker won't relocate. */
1311 if ((sec->flags & SEC_ALLOC) == 0)
1312 return TRUE;
1313
73589c9d
CS		 1314 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1315 sym_hashes = elf_sym_hashes (abfd);
1316
1317 htab = or1k_elf_hash_table (info);
1318 if (htab == NULL)
1319 return FALSE;
1320
1321 dynobj = htab->root.dynobj;
1322
1323 rel_end = relocs + sec->reloc_count;
1324 for (rel = relocs; rel < rel_end; rel++)
1325 {
1326 struct elf_link_hash_entry *h;
1327 unsigned long r_symndx;
1328 unsigned char tls_type;
1329
1330 r_symndx = ELF32_R_SYM (rel->r_info);
1331 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 1332 h = NULL;
73589c9d 1333 else
07d6d2b8
AM		 1334 {
1335 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1336 while (h->root.type == bfd_link_hash_indirect
1337 || h->root.type == bfd_link_hash_warning)
1338 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1339 }
73589c9d
CS		 1340
1341 switch (ELF32_R_TYPE (rel->r_info))
07d6d2b8
AM		 1342 {
1343 case R_OR1K_TLS_GD_HI16:
1344 case R_OR1K_TLS_GD_LO16:
1345 tls_type = TLS_GD;
1346 break;
1347 case R_OR1K_TLS_LDM_HI16:
1348 case R_OR1K_TLS_LDM_LO16:
1349 case R_OR1K_TLS_LDO_HI16:
1350 case R_OR1K_TLS_LDO_LO16:
1351 tls_type = TLS_LD;
1352 break;
1353 case R_OR1K_TLS_IE_HI16:
1354 case R_OR1K_TLS_IE_LO16:
1355 tls_type = TLS_IE;
1356 break;
1357 case R_OR1K_TLS_LE_HI16:
1358 case R_OR1K_TLS_LE_LO16:
1359 tls_type = TLS_LE;
1360 break;
1361 default:
1362 tls_type = TLS_NONE;
1363 }
73589c9d
CS		 1364
1365 /* Record TLS type. */
1366 if (h != NULL)
07d6d2b8 1367 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
73589c9d 1368 else
07d6d2b8
AM		 1369 {
1370 unsigned char *local_tls_type;
1371
1372 /* This is a TLS type record for a local symbol. */
1373 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1374 if (local_tls_type == NULL)
1375 {
1376 bfd_size_type size;
1377
1378 size = symtab_hdr->sh_info;
1379 local_tls_type = bfd_zalloc (abfd, size);
1380 if (local_tls_type == NULL)
1381 return FALSE;
1382 elf_or1k_local_tls_type (abfd) = local_tls_type;
1383 }
1384 local_tls_type[r_symndx] = tls_type;
1385 }
73589c9d
CS		 1386
1387 switch (ELF32_R_TYPE (rel->r_info))
07d6d2b8
AM		 1388 {
1389 /* This relocation describes the C++ object vtable hierarchy.
1390 Reconstruct it for later use during GC. */
1391 case R_OR1K_GNU_VTINHERIT:
1392 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1393 return FALSE;
1394 break;
1395
1396 /* This relocation describes which C++ vtable entries are actually
1397 used. Record for later use during GC. */
1398 case R_OR1K_GNU_VTENTRY:
1399 BFD_ASSERT (h != NULL);
1400 if (h != NULL
1401 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1402 return FALSE;
1403 break;
1404
1405 /* This relocation requires .plt entry. */
1406 case R_OR1K_PLT26:
1407 if (h != NULL)
1408 {
1409 h->needs_plt = 1;
1410 h->plt.refcount += 1;
1411 }
1412 break;
1413
1414 case R_OR1K_GOT16:
1415 case R_OR1K_GOTOFF_HI16:
1416 case R_OR1K_GOTOFF_LO16:
1417 case R_OR1K_TLS_GD_HI16:
1418 case R_OR1K_TLS_GD_LO16:
1419 case R_OR1K_TLS_IE_HI16:
1420 case R_OR1K_TLS_IE_LO16:
1421 if (htab->root.sgot == NULL)
1422 {
1423 if (dynobj == NULL)
1424 htab->root.dynobj = dynobj = abfd;
1425 if (!_bfd_elf_create_got_section (dynobj, info))
1426 return FALSE;
1427 }
1428
1429 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1430 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1431 {
1432 if (h != NULL)
1433 h->got.refcount += 1;
1434 else
1435 {
1436 bfd_signed_vma *local_got_refcounts;
1437
1438 /* This is a global offset table entry for a local symbol. */
1439 local_got_refcounts = elf_local_got_refcounts (abfd);
1440 if (local_got_refcounts == NULL)
1441 {
1442 bfd_size_type size;
1443
1444 size = symtab_hdr->sh_info;
1445 size *= sizeof (bfd_signed_vma);
1446 local_got_refcounts = bfd_zalloc (abfd, size);
1447 if (local_got_refcounts == NULL)
1448 return FALSE;
1449 elf_local_got_refcounts (abfd) = local_got_refcounts;
1450 }
1451 local_got_refcounts[r_symndx] += 1;
1452 }
1453 }
1454 break;
1455
1456 case R_OR1K_INSN_REL_26:
1457 case R_OR1K_HI_16_IN_INSN:
1458 case R_OR1K_LO_16_IN_INSN:
1459 case R_OR1K_32:
1460 /* R_OR1K_16? */
1461 {
1462 if (h != NULL && !bfd_link_pic (info))
1463 {
1464 /* We may need a copy reloc. */
1465 h->non_got_ref = 1;
1466
1467 /* We may also need a .plt entry. */
1468 h->plt.refcount += 1;
1469 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1470 h->pointer_equality_needed = 1;
1471 }
1472
1473 /* If we are creating a shared library, and this is a reloc
1474 against a global symbol, or a non PC relative reloc
1475 against a local symbol, then we need to copy the reloc
1476 into the shared library. However, if we are linking with
1477 -Bsymbolic, we do not need to copy a reloc against a
1478 global symbol which is defined in an object we are
1479 including in the link (i.e., DEF_REGULAR is set). At
1480 this point we have not seen all the input files, so it is
1481 possible that DEF_REGULAR is not set now but will be set
1482 later (it is never cleared). In case of a weak definition,
1483 DEF_REGULAR may be cleared later by a strong definition in
1484 a shared library. We account for that possibility below by
1485 storing information in the relocs_copied field of the hash
1486 table entry. A similar situation occurs when creating
1487 shared libraries and symbol visibility changes render the
1488 symbol local.
1489
1490 If on the other hand, we are creating an executable, we
1491 may need to keep relocations for symbols satisfied by a
1492 dynamic library if we manage to avoid copy relocs for the
1493 symbol. */
1494
1495 if ((bfd_link_pic (info)
1496 && (sec->flags & SEC_ALLOC) != 0
1497 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1498 || (h != NULL
1499 && (!SYMBOLIC_BIND (info, h)
1500 || h->root.type == bfd_link_hash_defweak
1501 || !h->def_regular))))
1502 || (!bfd_link_pic (info)
1503 && (sec->flags & SEC_ALLOC) != 0
1504 && h != NULL
1505 && (h->root.type == bfd_link_hash_defweak
1506 || !h->def_regular)))
1507 {
1508 struct elf_dyn_relocs *p;
1509 struct elf_dyn_relocs **head;
1510
1511 /* When creating a shared object, we must copy these
1512 relocs into the output file. We create a reloc
1513 section in dynobj and make room for the reloc. */
1514 if (sreloc == NULL)
1515 {
1516 const char *name;
1517 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1518 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1519
1520 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1521 if (name == NULL)
1522 return FALSE;
1523
1524 if (strncmp (name, ".rela", 5) != 0
1525 || strcmp (bfd_get_section_name (abfd, sec),
1526 name + 5) != 0)
1527 {
4eca0228 1528 _bfd_error_handler
695344c0 1529 /* xgettext:c-format */
871b3ab2 1530 (_("%pB: bad relocation section name `%s\'"),
07d6d2b8
AM		 1531 abfd, name);
1532 }
1533
1534 if (htab->root.dynobj == NULL)
1535 htab->root.dynobj = abfd;
1536 dynobj = htab->root.dynobj;
1537
1538 sreloc = bfd_get_section_by_name (dynobj, name);
1539 if (sreloc == NULL)
1540 {
1541 sreloc = _bfd_elf_make_dynamic_reloc_section
1542 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1543
1544 if (sreloc == NULL)
1545 return FALSE;
1546 }
1547 elf_section_data (sec)->sreloc = sreloc;
1548 }
1549
1550 /* If this is a global symbol, we count the number of
1551 relocations we need for this symbol. */
1552 if (h != NULL)
1553 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1554 else
1555 {
1556 /* Track dynamic relocs needed for local syms too.
1557 We really need local syms available to do this
1558 easily. Oh well. */
1559
1560 asection *s;
1561 Elf_Internal_Sym *isym;
1562 void *vpp;
1563
1564 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1565 abfd, r_symndx);
1566 if (isym == NULL)
1567 return FALSE;
1568
1569 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1570 if (s == NULL)
1571 return FALSE;
1572
1573 vpp = &elf_section_data (s)->local_dynrel;
1574 head = (struct elf_dyn_relocs **) vpp;
1575 }
1576
1577 p = *head;
1578 if (p == NULL || p->sec != sec)
1579 {
1580 bfd_size_type amt = sizeof *p;
1581 p = ((struct elf_dyn_relocs *)
1582 bfd_alloc (htab->root.dynobj, amt));
1583 if (p == NULL)
1584 return FALSE;
1585 p->next = *head;
1586 *head = p;
1587 p->sec = sec;
1588 p->count = 0;
1589 p->pc_count = 0;
1590 }
1591
1592 p->count += 1;
1593 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1594 p->pc_count += 1;
1595 }
1596 }
1597 break;
1598 }
73589c9d
CS		 1599 }
1600
1601 return TRUE;
1602}
1603
1604/* Finish up the dynamic sections. */
1605
1606static bfd_boolean
1607or1k_elf_finish_dynamic_sections (bfd *output_bfd,
07d6d2b8 1608 struct bfd_link_info *info)
73589c9d
CS		 1609{
1610 bfd *dynobj;
1611 asection *sdyn, *sgot;
1612 struct elf_or1k_link_hash_table *htab;
1613
1614 htab = or1k_elf_hash_table (info);
1615 if (htab == NULL)
1616 return FALSE;
1617
1618 dynobj = htab->root.dynobj;
1619
ce558b89 1620 sgot = htab->root.sgotplt;
73589c9d
CS		 1621 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1622
1623 if (htab->root.dynamic_sections_created)
1624 {
1625 asection *splt;
1626 Elf32_External_Dyn *dyncon, *dynconend;
1627
1628 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1629
1630 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1631 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1632
1633 for (; dyncon < dynconend; dyncon++)
07d6d2b8
AM		 1634 {
1635 Elf_Internal_Dyn dyn;
1636 asection *s;
73589c9d 1637
07d6d2b8 1638 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
73589c9d 1639
07d6d2b8
AM		 1640 switch (dyn.d_tag)
1641 {
1642 default:
1643 continue;
73589c9d 1644
07d6d2b8
AM		 1645 case DT_PLTGOT:
1646 s = htab->root.sgotplt;
1647 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1648 break;
73589c9d 1649
07d6d2b8
AM		 1650 case DT_JMPREL:
1651 s = htab->root.srelplt;
1652 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1653 break;
73589c9d 1654
07d6d2b8
AM		 1655 case DT_PLTRELSZ:
1656 s = htab->root.srelplt;
1657 dyn.d_un.d_val = s->size;
1658 break;
1659 }
1660 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1661 }
73589c9d
CS		 1662
1663
1664 /* Fill in the first entry in the procedure linkage table. */
ce558b89 1665 splt = htab->root.splt;
73589c9d 1666 if (splt && splt->size > 0)
07d6d2b8
AM		 1667 {
1668 if (bfd_link_pic (info))
1669 {
1670 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1671 splt->contents);
1672 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1673 splt->contents + 4);
1674 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1675 splt->contents + 8);
1676 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1677 splt->contents + 12);
1678 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1679 splt->contents + 16);
1680 }
1681 else
1682 {
1683 unsigned long addr;
1684 /* addr = .got + 4 */
1685 addr = sgot->output_section->vma + sgot->output_offset + 4;
1686 bfd_put_32 (output_bfd,
1687 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1688 splt->contents);
1689 bfd_put_32 (output_bfd,
1690 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1691 splt->contents + 4);
1692 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1693 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1694 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1695 }
1696
1697 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1698 }
73589c9d
CS		 1699 }
1700
1701 /* Set the first entry in the global offset table to the address of
1702 the dynamic section. */
1703 if (sgot && sgot->size > 0)
1704 {
1705 if (sdyn == NULL)
07d6d2b8 1706 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
73589c9d 1707 else
07d6d2b8
AM		 1708 bfd_put_32 (output_bfd,
1709 sdyn->output_section->vma + sdyn->output_offset,
1710 sgot->contents);
73589c9d
CS		 1711 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1712 }
1713
ce558b89
AM		 1714 if (htab->root.sgot && htab->root.sgot->size > 0)
1715 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
73589c9d
CS		 1716
1717 return TRUE;
1718}
1719
1720/* Finish up dynamic symbol handling. We set the contents of various
1721 dynamic sections here. */
1722
1723static bfd_boolean
1724or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
07d6d2b8
AM		 1725 struct bfd_link_info *info,
1726 struct elf_link_hash_entry *h,
1727 Elf_Internal_Sym *sym)
73589c9d
CS		 1728{
1729 struct elf_or1k_link_hash_table *htab;
1730 bfd_byte *loc;
1731
1732 htab = or1k_elf_hash_table (info);
1733 if (htab == NULL)
1734 return FALSE;
1735
1736 if (h->plt.offset != (bfd_vma) -1)
1737 {
1738 asection *splt;
1739 asection *sgot;
1740 asection *srela;
1741
1742 bfd_vma plt_index;
1743 bfd_vma got_offset;
1744 bfd_vma got_addr;
1745 Elf_Internal_Rela rela;
1746
1747 /* This symbol has an entry in the procedure linkage table. Set
07d6d2b8 1748 it up. */
73589c9d
CS		 1749 BFD_ASSERT (h->dynindx != -1);
1750
ce558b89
AM		 1751 splt = htab->root.splt;
1752 sgot = htab->root.sgotplt;
1753 srela = htab->root.srelplt;
73589c9d
CS		 1754 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1755
1756 /* Get the index in the procedure linkage table which
07d6d2b8
AM		 1757 corresponds to this symbol. This is the index of this symbol
1758 in all the symbols for which we are making plt entries. The
1759 first entry in the procedure linkage table is reserved. */
73589c9d
CS		 1760 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1761
1762 /* Get the offset into the .got table of the entry that
07d6d2b8
AM		 1763 corresponds to this function. Each .got entry is 4 bytes.
1764 The first three are reserved. */
73589c9d
CS		 1765 got_offset = (plt_index + 3) * 4;
1766 got_addr = got_offset;
1767
1768 /* Fill in the entry in the procedure linkage table. */
0e1862bb 1769 if (! bfd_link_pic (info))
07d6d2b8
AM		 1770 {
1771 got_addr += htab->root.sgotplt->output_section->vma
1772 + htab->root.sgotplt->output_offset;
1773 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1774 splt->contents + h->plt.offset);
1775 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1776 splt->contents + h->plt.offset + 4);
1777 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1778 splt->contents + h->plt.offset + 8);
1779 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1780 splt->contents + h->plt.offset + 12);
1781 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1782 | plt_index * sizeof (Elf32_External_Rela),
1783 splt->contents + h->plt.offset + 16);
1784 }
73589c9d 1785 else
07d6d2b8
AM		 1786 {
1787 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1788 splt->contents + h->plt.offset);
1789 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1790 | plt_index * sizeof (Elf32_External_Rela),
1791 splt->contents + h->plt.offset + 4);
1792 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1793 splt->contents + h->plt.offset + 8);
1794 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1795 splt->contents + h->plt.offset + 12);
1796 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1797 splt->contents + h->plt.offset + 16);
1798 }
73589c9d
CS		 1799
1800 /* Fill in the entry in the global offset table. */
1801 bfd_put_32 (output_bfd,
07d6d2b8
AM		 1802 (splt->output_section->vma
1803 + splt->output_offset), /* Same offset. */
1804 sgot->contents + got_offset);
73589c9d
CS		 1805
1806 /* Fill in the entry in the .rela.plt section. */
1807 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 1808 + sgot->output_offset
1809 + got_offset);
73589c9d
CS		 1810 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1811 rela.r_addend = 0;
1812 loc = srela->contents;
1813 loc += plt_index * sizeof (Elf32_External_Rela);
1814 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1815
1816 if (!h->def_regular)
07d6d2b8
AM		 1817 {
1818 /* Mark the symbol as undefined, rather than as defined in
1819 the .plt section. Leave the value alone. */
1820 sym->st_shndx = SHN_UNDEF;
1821 }
73589c9d
CS		 1822
1823 }
1824
1825 if (h->got.offset != (bfd_vma) -1
1826 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1827 {
1828 asection *sgot;
1829 asection *srela;
1830 Elf_Internal_Rela rela;
1831
1832 /* This symbol has an entry in the global offset table. Set it
07d6d2b8 1833 up. */
ce558b89
AM		 1834 sgot = htab->root.sgot;
1835 srela = htab->root.srelgot;
73589c9d
CS		 1836 BFD_ASSERT (sgot != NULL && srela != NULL);
1837
1838 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 1839 + sgot->output_offset
1840 + (h->got.offset &~ 1));
73589c9d
CS		 1841
1842 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM		 1843 locally, we just want to emit a RELATIVE reloc. Likewise if
1844 the symbol was forced to be local because of a version file.
1845 The entry in the global offset table will already have been
1846 initialized in the relocate_section function. */
0e1862bb 1847 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
07d6d2b8
AM		 1848 {
1849 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1850 rela.r_addend = (h->root.u.def.value
1851 + h->root.u.def.section->output_section->vma
1852 + h->root.u.def.section->output_offset);
1853 }
73589c9d 1854 else
07d6d2b8
AM		 1855 {
1856 BFD_ASSERT ((h->got.offset & 1) == 0);
1857 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1858 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1859 rela.r_addend = 0;
1860 }
73589c9d
CS		 1861
1862 loc = srela->contents;
1863 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1864 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1865 ++srela->reloc_count;
1866 }
1867
1868 if (h->needs_copy)
1869 {
1870 asection *s;
1871 Elf_Internal_Rela rela;
1872
1873 /* This symbols needs a copy reloc. Set it up. */
1874 BFD_ASSERT (h->dynindx != -1
07d6d2b8
AM		 1875 && (h->root.type == bfd_link_hash_defined
1876 || h->root.type == bfd_link_hash_defweak));
73589c9d 1877
73589c9d 1878 rela.r_offset = (h->root.u.def.value
07d6d2b8
AM		 1879 + h->root.u.def.section->output_section->vma
1880 + h->root.u.def.section->output_offset);
73589c9d
CS		 1881 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
1882 rela.r_addend = 0;
afbf7e8e 1883 if (h->root.u.def.section == htab->root.sdynrelro)
5474d94f
AM		 1884 s = htab->root.sreldynrelro;
1885 else
1886 s = htab->root.srelbss;
1887 loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
73589c9d
CS		 1888 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1889 ++s->reloc_count;
1890 }
1891
1892 /* Mark some specially defined symbols as absolute. */
1893 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1894 || h == htab->root.hgot)
1895 sym->st_shndx = SHN_ABS;
1896
1897 return TRUE;
1898}
1899
1900static enum elf_reloc_type_class
1901or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
07d6d2b8
AM		 1902 const asection *rel_sec ATTRIBUTE_UNUSED,
1903 const Elf_Internal_Rela *rela)
73589c9d
CS		 1904{
1905 switch ((int) ELF32_R_TYPE (rela->r_info))
1906 {
1907 case R_OR1K_RELATIVE: return reloc_class_relative;
1908 case R_OR1K_JMP_SLOT: return reloc_class_plt;
07d6d2b8
AM		 1909 case R_OR1K_COPY: return reloc_class_copy;
1910 default: return reloc_class_normal;
73589c9d
CS		 1911 }
1912}
1913
63c1f59d
AM		 1914/* Find dynamic relocs for H that apply to read-only sections. */
1915
1916static asection *
1917readonly_dynrelocs (struct elf_link_hash_entry *h)
1918{
3bf083ed 1919 struct elf_dyn_relocs *p;
63c1f59d
AM		 1920 struct elf_or1k_link_hash_entry *eh = (struct elf_or1k_link_hash_entry *) h;
1921
1922 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1923 {
1924 asection *s = p->sec->output_section;
1925
1926 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1927 return p->sec;
1928 }
1929 return NULL;
1930}
1931
73589c9d
CS		 1932/* Adjust a symbol defined by a dynamic object and referenced by a
1933 regular object. The current definition is in some section of the
1934 dynamic object, but we're not including those sections. We have to
1935 change the definition to something the rest of the link can
1936 understand. */
1937
1938static bfd_boolean
1939or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
07d6d2b8 1940 struct elf_link_hash_entry *h)
73589c9d
CS		 1941{
1942 struct elf_or1k_link_hash_table *htab;
73589c9d 1943 bfd *dynobj;
5474d94f 1944 asection *s, *srel;
73589c9d
CS		 1945
1946 dynobj = elf_hash_table (info)->dynobj;
1947
1948 /* Make sure we know what is going on here. */
1949 BFD_ASSERT (dynobj != NULL
07d6d2b8
AM		 1950 && (h->needs_plt
1951 || h->is_weakalias
1952 || (h->def_dynamic
1953 && h->ref_regular
1954 && !h->def_regular)));
73589c9d
CS		 1955
1956 /* If this is a function, put it in the procedure linkage table. We
1957 will fill in the contents of the procedure linkage table later,
1958 when we know the address of the .got section. */
1959 if (h->type == STT_FUNC
1960 || h->needs_plt)
1961 {
0e1862bb 1962 if (! bfd_link_pic (info)
07d6d2b8
AM		 1963 && !h->def_dynamic
1964 && !h->ref_dynamic
1965 && h->root.type != bfd_link_hash_undefweak
1966 && h->root.type != bfd_link_hash_undefined)
1967 {
1968 /* This case can occur if we saw a PLT reloc in an input
1969 file, but the symbol was never referred to by a dynamic
1970 object. In such a case, we don't actually need to build
1971 a procedure linkage table, and we can just do a PCREL
1972 reloc instead. */
1973 h->plt.offset = (bfd_vma) -1;
1974 h->needs_plt = 0;
1975 }
73589c9d
CS		 1976
1977 return TRUE;
1978 }
1979 else
1980 h->plt.offset = (bfd_vma) -1;
1981
1982 /* If this is a weak symbol, and there is a real definition, the
1983 processor independent code will have arranged for us to see the
1984 real definition first, and we can just use the same value. */
60d67dc8 1985 if (h->is_weakalias)
73589c9d 1986 {
60d67dc8
AM		 1987 struct elf_link_hash_entry *def = weakdef (h);
1988 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1989 h->root.u.def.section = def->root.u.def.section;
1990 h->root.u.def.value = def->root.u.def.value;
73589c9d
CS		 1991 return TRUE;
1992 }
1993
1994 /* This is a reference to a symbol defined by a dynamic object which
1995 is not a function. */
1996
1997 /* If we are creating a shared library, we must presume that the
1998 only references to the symbol are via the global offset table.
1999 For such cases we need not do anything here; the relocations will
2000 be handled correctly by relocate_section. */
0e1862bb 2001 if (bfd_link_pic (info))
73589c9d
CS		 2002 return TRUE;
2003
2004 /* If there are no references to this symbol that do not use the
2005 GOT, we don't need to generate a copy reloc. */
2006 if (!h->non_got_ref)
2007 return TRUE;
2008
2009 /* If -z nocopyreloc was given, we won't generate them either. */
2010 if (info->nocopyreloc)
2011 {
2012 h->non_got_ref = 0;
2013 return TRUE;
2014 }
2015
3bf083ed
AM		 2016 /* If we don't find any dynamic relocs in read-only sections, then
2017 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2018 if (!readonly_dynrelocs (h))
73589c9d
CS		 2019 {
2020 h->non_got_ref = 0;
2021 return TRUE;
2022 }
2023
2024 /* We must allocate the symbol in our .dynbss section, which will
2025 become part of the .bss section of the executable. There will be
2026 an entry for this symbol in the .dynsym section. The dynamic
2027 object will contain position independent code, so all references
2028 from the dynamic object to this symbol will go through the global
2029 offset table. The dynamic linker will use the .dynsym entry to
2030 determine the address it must put in the global offset table, so
2031 both the dynamic object and the regular object will refer to the
2032 same memory location for the variable. */
2033
2034 htab = or1k_elf_hash_table (info);
2035 if (htab == NULL)
2036 return FALSE;
2037
73589c9d
CS		 2038 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2039 to copy the initial value out of the dynamic object and into the
2040 runtime process image. We need to remember the offset into the
2041 .rela.bss section we are going to use. */
5474d94f 2042 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
73589c9d 2043 {
5474d94f
AM		 2044 s = htab->root.sdynrelro;
2045 srel = htab->root.sreldynrelro;
2046 }
2047 else
2048 {
2049 s = htab->root.sdynbss;
9d19e4fd 2050 srel = htab->root.srelbss;
5474d94f
AM		 2051 }
2052 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2053 {
73589c9d
CS		 2054 srel->size += sizeof (Elf32_External_Rela);
2055 h->needs_copy = 1;
2056 }
2057
6cabe1ea 2058 return _bfd_elf_adjust_dynamic_copy (info, h, s);
73589c9d
CS		 2059}
2060
2061/* Allocate space in .plt, .got and associated reloc sections for
2062 dynamic relocs. */
2063
2064static bfd_boolean
2065allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2066{
2067 struct bfd_link_info *info;
2068 struct elf_or1k_link_hash_table *htab;
2069 struct elf_or1k_link_hash_entry *eh;
3bf083ed 2070 struct elf_dyn_relocs *p;
73589c9d
CS		 2071
2072 if (h->root.type == bfd_link_hash_indirect)
2073 return TRUE;
2074
2075 info = (struct bfd_link_info *) inf;
2076 htab = or1k_elf_hash_table (info);
2077 if (htab == NULL)
2078 return FALSE;
2079
2080 eh = (struct elf_or1k_link_hash_entry *) h;
2081
2082 if (htab->root.dynamic_sections_created
2083 && h->plt.refcount > 0)
2084 {
2085 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 2086 Undefined weak syms won't yet be marked as dynamic. */
73589c9d 2087 if (h->dynindx == -1
07d6d2b8
AM		 2088 && !h->forced_local)
2089 {
2090 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2091 return FALSE;
2092 }
73589c9d 2093
0e1862bb 2094 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
07d6d2b8
AM		 2095 {
2096 asection *s = htab->root.splt;
2097
2098 /* If this is the first .plt entry, make room for the special
2099 first entry. */
2100 if (s->size == 0)
2101 s->size = PLT_ENTRY_SIZE;
2102
2103 h->plt.offset = s->size;
2104
2105 /* If this symbol is not defined in a regular file, and we are
2106 not generating a shared library, then set the symbol to this
2107 location in the .plt. This is required to make function
2108 pointers compare as equal between the normal executable and
2109 the shared library. */
2110 if (! bfd_link_pic (info)
2111 && !h->def_regular)
2112 {
2113 h->root.u.def.section = s;
2114 h->root.u.def.value = h->plt.offset;
2115 }
2116
2117 /* Make room for this entry. */
2118 s->size += PLT_ENTRY_SIZE;
2119
2120 /* We also need to make an entry in the .got.plt section, which
2121 will be placed in the .got section by the linker script. */
2122 htab->root.sgotplt->size += 4;
2123
2124 /* We also need to make an entry in the .rel.plt section. */
2125 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2126 }
73589c9d 2127 else
07d6d2b8
AM		 2128 {
2129 h->plt.offset = (bfd_vma) -1;
2130 h->needs_plt = 0;
2131 }
73589c9d
CS		 2132 }
2133 else
2134 {
2135 h->plt.offset = (bfd_vma) -1;
2136 h->needs_plt = 0;
2137 }
2138
2139 if (h->got.refcount > 0)
2140 {
2141 asection *s;
2142 bfd_boolean dyn;
2143 unsigned char tls_type;
2144
2145 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 2146 Undefined weak syms won't yet be marked as dynamic. */
73589c9d 2147 if (h->dynindx == -1
07d6d2b8
AM		 2148 && !h->forced_local)
2149 {
2150 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2151 return FALSE;
2152 }
73589c9d 2153
ce558b89 2154 s = htab->root.sgot;
73589c9d
CS		 2155
2156 h->got.offset = s->size;
2157
2158 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2159
2160 /* TLS GD requires two GOT and two relocs. */
2161 if (tls_type == TLS_GD)
07d6d2b8 2162 s->size += 8;
73589c9d 2163 else
07d6d2b8 2164 s->size += 4;
73589c9d 2165 dyn = htab->root.dynamic_sections_created;
0e1862bb 2166 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
07d6d2b8
AM		 2167 {
2168 if (tls_type == TLS_GD)
2169 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2170 else
2171 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2172 }
73589c9d
CS		 2173 }
2174 else
2175 h->got.offset = (bfd_vma) -1;
2176
2177 if (eh->dyn_relocs == NULL)
2178 return TRUE;
2179
2180 /* In the shared -Bsymbolic case, discard space allocated for
2181 dynamic pc-relative relocs against symbols which turn out to be
2182 defined in regular objects. For the normal shared case, discard
2183 space for pc-relative relocs that have become local due to symbol
2184 visibility changes. */
2185
0e1862bb 2186 if (bfd_link_pic (info))
73589c9d 2187 {
ffccb7af 2188 if (SYMBOL_CALLS_LOCAL (info, h))
07d6d2b8
AM		 2189 {
2190 struct elf_dyn_relocs **pp;
2191
2192 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2193 {
2194 p->count -= p->pc_count;
2195 p->pc_count = 0;
2196 if (p->count == 0)
2197 *pp = p->next;
2198 else
2199 pp = &p->next;
2200 }
2201 }
73589c9d
CS		 2202
2203 /* Also discard relocs on undefined weak syms with non-default
07d6d2b8 2204 visibility. */
73589c9d 2205 if (eh->dyn_relocs != NULL
07d6d2b8
AM		 2206 && h->root.type == bfd_link_hash_undefweak)
2207 {
2208 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2209 eh->dyn_relocs = NULL;
2210
2211 /* Make sure undefined weak symbols are output as a dynamic
2212 symbol in PIEs. */
2213 else if (h->dynindx == -1
2214 && !h->forced_local)
2215 {
2216 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2217 return FALSE;
2218 }
2219 }
73589c9d
CS		 2220 }
2221 else
2222 {
2223 /* For the non-shared case, discard space for relocs against
07d6d2b8
AM		 2224 symbols which turn out to need copy relocs or are not
2225 dynamic. */
73589c9d
CS		 2226
2227 if (!h->non_got_ref
07d6d2b8
AM		 2228 && ((h->def_dynamic
2229 && !h->def_regular)
2230 || (htab->root.dynamic_sections_created
2231 && (h->root.type == bfd_link_hash_undefweak
2232 || h->root.type == bfd_link_hash_undefined))))
2233 {
2234 /* Make sure this symbol is output as a dynamic symbol.
2235 Undefined weak syms won't yet be marked as dynamic. */
2236 if (h->dynindx == -1
2237 && !h->forced_local)
2238 {
2239 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2240 return FALSE;
2241 }
2242
2243 /* If that succeeded, we know we'll be keeping all the
2244 relocs. */
2245 if (h->dynindx != -1)
2246 goto keep;
2247 }
73589c9d
CS		 2248
2249 eh->dyn_relocs = NULL;
2250
2251 keep: ;
2252 }
2253
2254 /* Finally, allocate space. */
2255 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2256 {
2257 asection *sreloc = elf_section_data (p->sec)->sreloc;
2258 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2259 }
2260
2261 return TRUE;
2262}
2263
63c1f59d
AM		 2264/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2265 read-only sections. */
73589c9d
CS		 2266
2267static bfd_boolean
63c1f59d 2268maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
73589c9d 2269{
63c1f59d 2270 asection *sec;
73589c9d 2271
63c1f59d
AM		 2272 if (h->root.type == bfd_link_hash_indirect)
2273 return TRUE;
73589c9d 2274
63c1f59d
AM		 2275 sec = readonly_dynrelocs (h);
2276 if (sec != NULL)
2277 {
2278 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
73589c9d 2279
63c1f59d
AM		 2280 info->flags |= DF_TEXTREL;
2281 info->callbacks->minfo
c1c8c1ef 2282 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
63c1f59d 2283 sec->owner, h->root.root.string, sec);
73589c9d 2284
63c1f59d
AM		 2285 /* Not an error, just cut short the traversal. */
2286 return FALSE;
73589c9d
CS		 2287 }
2288 return TRUE;
2289}
2290
2291/* Set the sizes of the dynamic sections. */
2292
2293static bfd_boolean
2294or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
07d6d2b8 2295 struct bfd_link_info *info)
73589c9d
CS		 2296{
2297 struct elf_or1k_link_hash_table *htab;
2298 bfd *dynobj;
2299 asection *s;
2300 bfd_boolean relocs;
2301 bfd *ibfd;
2302
2303 htab = or1k_elf_hash_table (info);
2304 if (htab == NULL)
2305 return FALSE;
2306
2307 dynobj = htab->root.dynobj;
2308 BFD_ASSERT (dynobj != NULL);
2309
2310 if (htab->root.dynamic_sections_created)
2311 {
2312 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2313 if (bfd_link_executable (info) && !info->nointerp)
07d6d2b8
AM		 2314 {
2315 s = bfd_get_section_by_name (dynobj, ".interp");
2316 BFD_ASSERT (s != NULL);
2317 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2318 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2319 }
73589c9d
CS		 2320 }
2321
2322 /* Set up .got offsets for local syms, and space for local dynamic
2323 relocs. */
c72f2fb2 2324 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
73589c9d
CS		 2325 {
2326 bfd_signed_vma *local_got;
2327 bfd_signed_vma *end_local_got;
2328 bfd_size_type locsymcount;
2329 Elf_Internal_Shdr *symtab_hdr;
2330 unsigned char *local_tls_type;
2331 asection *srel;
2332
2333 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
07d6d2b8 2334 continue;
73589c9d
CS		 2335
2336 for (s = ibfd->sections; s != NULL; s = s->next)
07d6d2b8
AM		 2337 {
2338 struct elf_dyn_relocs *p;
2339
2340 for (p = ((struct elf_dyn_relocs *)
2341 elf_section_data (s)->local_dynrel);
2342 p != NULL;
2343 p = p->next)
2344 {
2345 if (! bfd_is_abs_section (p->sec)
2346 && bfd_is_abs_section (p->sec->output_section))
2347 {
2348 /* Input section has been discarded, either because
2349 it is a copy of a linkonce section or due to
2350 linker script /DISCARD/, so we'll be discarding
2351 the relocs too. */
2352 }
2353 else if (p->count != 0)
2354 {
2355 srel = elf_section_data (p->sec)->sreloc;
2356 srel->size += p->count * sizeof (Elf32_External_Rela);
2357 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2358 info->flags |= DF_TEXTREL;
2359 }
2360 }
2361 }
73589c9d
CS		 2362
2363 local_got = elf_local_got_refcounts (ibfd);
2364 if (!local_got)
07d6d2b8 2365 continue;
73589c9d
CS		 2366
2367 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2368 locsymcount = symtab_hdr->sh_info;
2369 end_local_got = local_got + locsymcount;
ce558b89
AM		 2370 s = htab->root.sgot;
2371 srel = htab->root.srelgot;
73589c9d
CS		 2372 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2373 for (; local_got < end_local_got; ++local_got)
07d6d2b8
AM		 2374 {
2375 if (*local_got > 0)
2376 {
2377 *local_got = s->size;
2378
2379 /* TLS GD requires two GOT and two relocs. */
2380 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2381 s->size += 8;
2382 else
2383 s->size += 4;
2384 if (bfd_link_pic (info))
2385 {
2386 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2387 srel->size += 2 * sizeof (Elf32_External_Rela);
2388 else
2389 srel->size += sizeof (Elf32_External_Rela);
2390 }
2391 }
2392 else
2393
2394 *local_got = (bfd_vma) -1;
2395
2396 if (local_tls_type)
2397 ++local_tls_type;
2398 }
73589c9d
CS		 2399 }
2400
2401 /* Allocate global sym .plt and .got entries, and space for global
2402 sym dynamic relocs. */
2403 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2404
2405 /* We now have determined the sizes of the various dynamic sections.
2406 Allocate memory for them. */
2407 relocs = FALSE;
2408 for (s = dynobj->sections; s != NULL; s = s->next)
2409 {
2410 if ((s->flags & SEC_LINKER_CREATED) == 0)
07d6d2b8 2411 continue;
73589c9d 2412
ce558b89 2413 if (s == htab->root.splt
07d6d2b8
AM		 2414 || s == htab->root.sgot
2415 || s == htab->root.sgotplt
5474d94f
AM		 2416 || s == htab->root.sdynbss
2417 || s == htab->root.sdynrelro)
07d6d2b8
AM		 2418 {
2419 /* Strip this section if we don't need it; see the
2420 comment below. */
2421 }
73589c9d 2422 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
07d6d2b8
AM		 2423 {
2424 if (s->size != 0 && s != htab->root.srelplt)
2425 relocs = TRUE;
2426
2427 /* We use the reloc_count field as a counter if we need
2428 to copy relocs into the output file. */
2429 s->reloc_count = 0;
2430 }
73589c9d 2431 else
07d6d2b8
AM		 2432 /* It's not one of our sections, so don't allocate space. */
2433 continue;
73589c9d
CS		 2434
2435 if (s->size == 0)
07d6d2b8
AM		 2436 {
2437 /* If we don't need this section, strip it from the
2438 output file. This is mostly to handle .rela.bss and
2439 .rela.plt. We must create both sections in
2440 create_dynamic_sections, because they must be created
2441 before the linker maps input sections to output
2442 sections. The linker does that before
2443 adjust_dynamic_symbol is called, and it is that
2444 function which decides whether anything needs to go
2445 into these sections. */
2446 s->flags |= SEC_EXCLUDE;
2447 continue;
2448 }
73589c9d
CS		 2449
2450 if ((s->flags & SEC_HAS_CONTENTS) == 0)
07d6d2b8 2451 continue;
73589c9d
CS		 2452
2453 /* Allocate memory for the section contents. We use bfd_zalloc
07d6d2b8
AM		 2454 here in case unused entries are not reclaimed before the
2455 section's contents are written out. This should not happen,
2456 but this way if it does, we get a R_OR1K_NONE reloc instead
2457 of garbage. */
73589c9d
CS		 2458 s->contents = bfd_zalloc (dynobj, s->size);
2459
2460 if (s->contents == NULL)
07d6d2b8 2461 return FALSE;
73589c9d
CS		 2462 }
2463
2464 if (htab->root.dynamic_sections_created)
2465 {
2466 /* Add some entries to the .dynamic section. We fill in the
07d6d2b8
AM		 2467 values later, in or1k_elf_finish_dynamic_sections, but we
2468 must add the entries now so that we get the correct size for
2469 the .dynamic section. The DT_DEBUG entry is filled in by the
2470 dynamic linker and used by the debugger. */
73589c9d
CS		 2471#define add_dynamic_entry(TAG, VAL) \
2472 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2473
0e1862bb 2474 if (bfd_link_executable (info))
73589c9d 2475 {
07d6d2b8
AM		 2476 if (! add_dynamic_entry (DT_DEBUG, 0))
2477 return FALSE;
73589c9d
CS		 2478 }
2479
ce558b89 2480 if (htab->root.splt->size != 0)
73589c9d 2481 {
07d6d2b8
AM		 2482 if (! add_dynamic_entry (DT_PLTGOT, 0)
2483 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2484 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2485 || ! add_dynamic_entry (DT_JMPREL, 0))
2486 return FALSE;
2487 }
73589c9d
CS		 2488
2489 if (relocs)
2490 {
07d6d2b8
AM		 2491 if (! add_dynamic_entry (DT_RELA, 0)
2492 || ! add_dynamic_entry (DT_RELASZ, 0)
2493 || ! add_dynamic_entry (DT_RELAENT,
2494 sizeof (Elf32_External_Rela)))
2495 return FALSE;
2496
2497 /* If any dynamic relocs apply to a read-only section,
2498 then we need a DT_TEXTREL entry. */
2499 if ((info->flags & DF_TEXTREL) == 0)
2500 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
2501
2502 if ((info->flags & DF_TEXTREL) != 0)
2503 {
2504 if (! add_dynamic_entry (DT_TEXTREL, 0))
2505 return FALSE;
2506 }
73589c9d
CS		 2507 }
2508 }
2509
2510#undef add_dynamic_entry
2511 return TRUE;
2512}
2513
73589c9d
CS		 2514/* Copy the extra info we tack onto an elf_link_hash_entry. */
2515
2516static void
2517or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
07d6d2b8
AM		 2518 struct elf_link_hash_entry *dir,
2519 struct elf_link_hash_entry *ind)
73589c9d
CS		 2520{
2521 struct elf_or1k_link_hash_entry * edir;
2522 struct elf_or1k_link_hash_entry * eind;
2523
2524 edir = (struct elf_or1k_link_hash_entry *) dir;
2525 eind = (struct elf_or1k_link_hash_entry *) ind;
2526
2527 if (eind->dyn_relocs != NULL)
2528 {
2529 if (edir->dyn_relocs != NULL)
07d6d2b8
AM		 2530 {
2531 struct elf_dyn_relocs **pp;
2532 struct elf_dyn_relocs *p;
2533
2534 /* Add reloc counts against the indirect sym to the direct sym
2535 list. Merge any entries against the same section. */
2536 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2537 {
2538 struct elf_dyn_relocs *q;
2539
2540 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2541 if (q->sec == p->sec)
2542 {
2543 q->pc_count += p->pc_count;
2544 q->count += p->count;
2545 *pp = p->next;
2546 break;
2547 }
2548 if (q == NULL)
2549 pp = &p->next;
2550 }
2551 *pp = edir->dyn_relocs;
2552 }
73589c9d
CS		 2553
2554 edir->dyn_relocs = eind->dyn_relocs;
2555 eind->dyn_relocs = NULL;
2556 }
2557
2558 if (ind->root.type == bfd_link_hash_indirect)
2559 {
2560 if (dir->got.refcount <= 0)
07d6d2b8
AM		 2561 {
2562 edir->tls_type = eind->tls_type;
2563 eind->tls_type = TLS_UNKNOWN;
2564 }
73589c9d
CS		 2565 }
2566
2567 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2568}
2569
2570/* Set the right machine number. */
2571
2572static bfd_boolean
2573or1k_elf_object_p (bfd *abfd)
2574{
2575 unsigned long mach = bfd_mach_or1k;
2576
2577 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2578 mach = bfd_mach_or1knd;
2579
2580 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2581}
2582
2583/* Store the machine number in the flags field. */
2584
2585static void
2586or1k_elf_final_write_processing (bfd *abfd,
2587 bfd_boolean linker ATTRIBUTE_UNUSED)
2588{
2589 switch (bfd_get_mach (abfd))
2590 {
2591 default:
2592 case bfd_mach_or1k:
2593 break;
2594 case bfd_mach_or1knd:
2595 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2596 break;
2597 }
2598}
2599
2600static bfd_boolean
2601or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2602{
2603 BFD_ASSERT (!elf_flags_init (abfd)
07d6d2b8 2604 || elf_elfheader (abfd)->e_flags == flags);
73589c9d
CS		 2605
2606 elf_elfheader (abfd)->e_flags = flags;
2607 elf_flags_init (abfd) = TRUE;
2608 return TRUE;
2609}
2610
2611/* Make sure all input files are consistent with respect to
2612 EF_OR1K_NODELAY flag setting. */
2613
2614static bfd_boolean
50e03d47 2615elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
73589c9d 2616{
50e03d47 2617 bfd *obfd = info->output_bfd;
73589c9d
CS		 2618 flagword out_flags;
2619 flagword in_flags;
2620
2621 in_flags = elf_elfheader (ibfd)->e_flags;
2622 out_flags = elf_elfheader (obfd)->e_flags;
2623
2624 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2625 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2626 return TRUE;
2627
2628 if (!elf_flags_init (obfd))
2629 {
2630 elf_flags_init (obfd) = TRUE;
2631 elf_elfheader (obfd)->e_flags = in_flags;
2632
2633 return TRUE;
2634 }
2635
2636 if (in_flags == out_flags)
2637 return TRUE;
2638
2639 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2640 {
4eca0228 2641 _bfd_error_handler
871b3ab2 2642 (_("%pB: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
73589c9d
CS		 2643
2644 bfd_set_error (bfd_error_bad_value);
2645 return FALSE;
2646 }
2647
2648 return TRUE;
2649
2650}
2651
07d6d2b8
AM		 2652#define ELF_ARCH bfd_arch_or1k
2653#define ELF_MACHINE_CODE EM_OR1K
2654#define ELF_TARGET_ID OR1K_ELF_DATA
2655#define ELF_MAXPAGESIZE 0x2000
73589c9d 2656
07d6d2b8
AM		 2657#define TARGET_BIG_SYM or1k_elf32_vec
2658#define TARGET_BIG_NAME "elf32-or1k"
73589c9d 2659
07d6d2b8
AM		 2660#define elf_info_to_howto_rel NULL
2661#define elf_info_to_howto or1k_info_to_howto_rela
2662#define elf_backend_relocate_section or1k_elf_relocate_section
2663#define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
2664#define elf_backend_check_relocs or1k_elf_check_relocs
2665#define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2666#define elf_backend_can_gc_sections 1
2667#define elf_backend_rela_normal 1
73589c9d 2668
07d6d2b8 2669#define bfd_elf32_mkobject elf_or1k_mkobject
73589c9d
CS		 2670
2671#define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2672#define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2673#define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2674#define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2675
07d6d2b8 2676#define elf_backend_object_p or1k_elf_object_p
73589c9d 2677#define elf_backend_final_write_processing or1k_elf_final_write_processing
07d6d2b8 2678#define elf_backend_can_refcount 1
73589c9d 2679
07d6d2b8
AM		 2680#define elf_backend_plt_readonly 1
2681#define elf_backend_want_got_plt 1
2682#define elf_backend_want_plt_sym 0
2683#define elf_backend_got_header_size 12
64f52338 2684#define elf_backend_dtrel_excludes_plt 1
5474d94f 2685#define elf_backend_want_dynrelro 1
64f52338 2686
07d6d2b8
AM		 2687#define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2688#define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
2689#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
2690#define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2691#define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2692#define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2693#define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
73589c9d
CS		 2694
2695#include "elf32-target.h"
GDB Binutils - Deliverables
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