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[thirdparty/binutils-gdb.git] / bfd / elf32-or1k.c
1 /* Or1k-specific support for 32-bit ELF.
2 Copyright (C) 2001-2018 Free Software Foundation, Inc.
3 Contributed for OR32 by Johan Rydberg, jrydberg@opencores.org
4
5 PIC parts added by Stefan Kristiansson, stefan.kristiansson@saunalahti.fi,
6 largely based on elf32-m32r.c and elf32-microblaze.c.
7
8 This file is part of BFD, the Binary File Descriptor library.
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, see <http://www.gnu.org/licenses/>. */
22
23 #include "sysdep.h"
24 #include "bfd.h"
25 #include "libbfd.h"
26 #include "elf-bfd.h"
27 #include "elf/or1k.h"
28 #include "libiberty.h"
29
30 #define 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
58 static reloc_howto_type or1k_elf_howto_table[] =
59 {
60 /* This reloc does nothing. */
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 */
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 */
202 TRUE), /* pcrel_offset */
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 */
216 TRUE), /* pcrel_offset */
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 */
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 */
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
517 struct or1k_reloc_map
518 {
519 bfd_reloc_code_real_type bfd_reloc_val;
520 unsigned int or1k_reloc_val;
521 };
522
523 static 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 #define TLS_UNKNOWN 0
560 #define TLS_NONE 1
561 #define TLS_GD 2
562 #define TLS_LD 3
563 #define TLS_IE 4
564 #define TLS_LE 5
565
566 /* ELF linker hash entry. */
567 struct elf_or1k_link_hash_entry
568 {
569 struct elf_link_hash_entry root;
570
571 /* Track dynamic relocs copied for this symbol. */
572 struct elf_dyn_relocs *dyn_relocs;
573
574 /* Track type of TLS access. */
575 unsigned char tls_type;
576 };
577
578 /* ELF object data. */
579 struct 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. */
594 struct elf_or1k_link_hash_table
595 {
596 struct elf_link_hash_table root;
597
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
607 static bfd_boolean
608 elf_or1k_mkobject (bfd *abfd)
609 {
610 return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
611 OR1K_ELF_DATA);
612 }
613
614 /* Create an entry in an or1k ELF linker hash table. */
615
616 static struct bfd_hash_entry *
617 or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
618 struct bfd_hash_table *table,
619 const char *string)
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,
628 sizeof (struct elf_or1k_link_hash_entry));
629 if (ret == NULL)
630 return NULL;
631
632 /* Call the allocation method of the superclass. */
633 ret = ((struct elf_or1k_link_hash_entry *)
634 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
635 table, string));
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
650 static struct bfd_link_hash_table *
651 or1k_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,
661 or1k_elf_link_hash_newfunc,
662 sizeof (struct elf_or1k_link_hash_entry),
663 OR1K_ELF_DATA))
664 {
665 free (ret);
666 return NULL;
667 }
668
669 return &ret->root.root;
670 }
671
672 static reloc_howto_type *
673 or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
674 bfd_reloc_code_real_type code)
675 {
676 unsigned int i;
677
678 for (i = ARRAY_SIZE (or1k_reloc_map); i--;)
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
685 static reloc_howto_type *
686 or1k_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)
693 / sizeof (or1k_elf_howto_table[0]));
694 i++)
695 if (or1k_elf_howto_table[i].name != NULL
696 && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
697 return &or1k_elf_howto_table[i];
698
699 return NULL;
700 }
701
702 /* Set the howto pointer for an Or1k ELF reloc. */
703
704 static void
705 or1k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
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);
712 if (r_type >= (unsigned int) R_OR1K_max)
713 {
714 /* xgettext:c-format */
715 _bfd_error_handler (_("%pB: invalid OR1K reloc number: %d"), abfd, r_type);
716 r_type = 0;
717 }
718 cache_ptr->howto = & or1k_elf_howto_table[r_type];
719 }
720
721
722 /* Return the relocation value for @tpoff relocations.. */
723 static bfd_vma
724 tpoff (struct bfd_link_info *info, bfd_vma address)
725 {
726 /* If tls_sec is NULL, we should have signalled an error already. */
727 if (elf_hash_table (info)->tls_sec == NULL)
728 return 0;
729
730 /* The thread pointer on or1k stores the address after the TCB where
731 the data is, just compute the difference. No need to compensate
732 for the size of TCB. */
733 return (address - elf_hash_table (info)->tls_sec->vma);
734 }
735
736 /* Relocate an Or1k ELF section.
737
738 The RELOCATE_SECTION function is called by the new ELF backend linker
739 to handle the relocations for a section.
740
741 The relocs are always passed as Rela structures; if the section
742 actually uses Rel structures, the r_addend field will always be
743 zero.
744
745 This function is responsible for adjusting the section contents as
746 necessary, and (if using Rela relocs and generating a relocatable
747 output file) adjusting the reloc addend as necessary.
748
749 This function does not have to worry about setting the reloc
750 address or the reloc symbol index.
751
752 LOCAL_SYMS is a pointer to the swapped in local symbols.
753
754 LOCAL_SECTIONS is an array giving the section in the input file
755 corresponding to the st_shndx field of each local symbol.
756
757 The global hash table entry for the global symbols can be found
758 via elf_sym_hashes (input_bfd).
759
760 When generating relocatable output, this function must handle
761 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
762 going to be the section symbol corresponding to the output
763 section, which means that the addend must be adjusted
764 accordingly. */
765
766 static bfd_boolean
767 or1k_elf_relocate_section (bfd *output_bfd,
768 struct bfd_link_info *info,
769 bfd *input_bfd,
770 asection *input_section,
771 bfd_byte *contents,
772 Elf_Internal_Rela *relocs,
773 Elf_Internal_Sym *local_syms,
774 asection **local_sections)
775 {
776 Elf_Internal_Shdr *symtab_hdr;
777 struct elf_link_hash_entry **sym_hashes;
778 Elf_Internal_Rela *rel;
779 Elf_Internal_Rela *relend;
780 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
781 bfd *dynobj;
782 asection *sreloc;
783 bfd_vma *local_got_offsets;
784 asection *sgot;
785
786 if (htab == NULL)
787 return FALSE;
788
789 dynobj = htab->root.dynobj;
790 local_got_offsets = elf_local_got_offsets (input_bfd);
791
792 sreloc = elf_section_data (input_section)->sreloc;
793
794 sgot = htab->root.sgot;
795
796 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
797 sym_hashes = elf_sym_hashes (input_bfd);
798 relend = relocs + input_section->reloc_count;
799
800 for (rel = relocs; rel < relend; rel++)
801 {
802 reloc_howto_type *howto;
803 unsigned long r_symndx;
804 Elf_Internal_Sym *sym;
805 asection *sec;
806 struct elf_link_hash_entry *h;
807 bfd_vma relocation;
808 bfd_reloc_status_type r;
809 const char *name = NULL;
810 int r_type;
811
812 r_type = ELF32_R_TYPE (rel->r_info);
813 r_symndx = ELF32_R_SYM (rel->r_info);
814
815 if (r_type == R_OR1K_GNU_VTINHERIT
816 || r_type == R_OR1K_GNU_VTENTRY)
817 continue;
818
819 if (r_type < 0 || r_type >= (int) R_OR1K_max)
820 {
821 bfd_set_error (bfd_error_bad_value);
822 return FALSE;
823 }
824
825 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
826 h = NULL;
827 sym = NULL;
828 sec = NULL;
829
830 if (r_symndx < symtab_hdr->sh_info)
831 {
832 sym = local_syms + r_symndx;
833 sec = local_sections[r_symndx];
834 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
835
836 name = bfd_elf_string_from_elf_section
837 (input_bfd, symtab_hdr->sh_link, sym->st_name);
838 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
839 }
840 else
841 {
842 bfd_boolean unresolved_reloc, warned, ignored;
843
844 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
845 r_symndx, symtab_hdr, sym_hashes,
846 h, sec, relocation,
847 unresolved_reloc, warned, ignored);
848 }
849
850 if (sec != NULL && discarded_section (sec))
851 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
852 rel, 1, relend, howto, 0, contents);
853
854 if (bfd_link_relocatable (info))
855 continue;
856
857 switch (howto->type)
858 {
859 case R_OR1K_PLT26:
860 {
861 if (htab->root.splt != NULL && h != NULL
862 && h->plt.offset != (bfd_vma) -1)
863 {
864 relocation = (htab->root.splt->output_section->vma
865 + htab->root.splt->output_offset
866 + h->plt.offset);
867 }
868 break;
869 }
870
871 case R_OR1K_GOT16:
872 /* Relocation is to the entry for this symbol in the global
873 offset table. */
874 BFD_ASSERT (sgot != NULL);
875 if (h != NULL)
876 {
877 bfd_boolean dyn;
878 bfd_vma off;
879
880 off = h->got.offset;
881 BFD_ASSERT (off != (bfd_vma) -1);
882
883 dyn = htab->root.dynamic_sections_created;
884 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
885 bfd_link_pic (info),
886 h)
887 || (bfd_link_pic (info)
888 && SYMBOL_REFERENCES_LOCAL (info, h)))
889 {
890 /* This is actually a static link, or it is a
891 -Bsymbolic link and the symbol is defined
892 locally, or the symbol was forced to be local
893 because of a version file. We must initialize
894 this entry in the global offset table. Since the
895 offset must always be a multiple of 4, we use the
896 least significant bit to record whether we have
897 initialized it already.
898
899 When doing a dynamic link, we create a .rela.got
900 relocation entry to initialize the value. This
901 is done in the finish_dynamic_symbol routine. */
902 if ((off & 1) != 0)
903 off &= ~1;
904 else
905 {
906 /* Write entry in GOT. */
907 bfd_put_32 (output_bfd, relocation,
908 sgot->contents + off);
909 /* Mark GOT entry as having been written. */
910 h->got.offset |= 1;
911 }
912 }
913
914 relocation = sgot->output_offset + off;
915 }
916 else
917 {
918 bfd_vma off;
919 bfd_byte *loc;
920
921 BFD_ASSERT (local_got_offsets != NULL
922 && local_got_offsets[r_symndx] != (bfd_vma) -1);
923
924 /* Get offset into GOT table. */
925 off = local_got_offsets[r_symndx];
926
927 /* The offset must always be a multiple of 4. We use
928 the least significant bit to record whether we have
929 already processed this entry. */
930 if ((off & 1) != 0)
931 off &= ~1;
932 else
933 {
934 /* Write entry in GOT. */
935 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
936 if (bfd_link_pic (info))
937 {
938 asection *srelgot;
939 Elf_Internal_Rela outrel;
940
941 /* We need to generate a R_OR1K_RELATIVE reloc
942 for the dynamic linker. */
943 srelgot = htab->root.srelgot;
944 BFD_ASSERT (srelgot != NULL);
945
946 outrel.r_offset = (sgot->output_section->vma
947 + sgot->output_offset
948 + off);
949 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
950 outrel.r_addend = relocation;
951 loc = srelgot->contents;
952 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
953 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
954 ++srelgot->reloc_count;
955 }
956
957 local_got_offsets[r_symndx] |= 1;
958 }
959 relocation = sgot->output_offset + off;
960 }
961
962 /* Addend should be zero. */
963 if (rel->r_addend != 0)
964 _bfd_error_handler
965 (_("internal error: addend should be zero for R_OR1K_GOT16"));
966
967 break;
968
969 case R_OR1K_GOTOFF_LO16:
970 case R_OR1K_GOTOFF_HI16:
971 /* Relocation is offset from GOT. */
972 BFD_ASSERT (sgot != NULL);
973 relocation
974 -= (htab->root.hgot->root.u.def.value
975 + htab->root.hgot->root.u.def.section->output_offset
976 + htab->root.hgot->root.u.def.section->output_section->vma);
977 break;
978
979 case R_OR1K_INSN_REL_26:
980 case R_OR1K_HI_16_IN_INSN:
981 case R_OR1K_LO_16_IN_INSN:
982 case R_OR1K_32:
983 /* R_OR1K_16? */
984 {
985 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
986 from removed linkonce sections, or sections discarded by
987 a linker script. */
988 if (r_symndx == STN_UNDEF
989 || (input_section->flags & SEC_ALLOC) == 0)
990 break;
991
992 if ((bfd_link_pic (info)
993 && (h == NULL
994 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
995 || h->root.type != bfd_link_hash_undefweak)
996 && (howto->type != R_OR1K_INSN_REL_26
997 || !SYMBOL_CALLS_LOCAL (info, h)))
998 || (!bfd_link_pic (info)
999 && h != NULL
1000 && h->dynindx != -1
1001 && !h->non_got_ref
1002 && ((h->def_dynamic
1003 && !h->def_regular)
1004 || h->root.type == bfd_link_hash_undefweak
1005 || h->root.type == bfd_link_hash_undefined)))
1006 {
1007 Elf_Internal_Rela outrel;
1008 bfd_byte *loc;
1009 bfd_boolean skip;
1010
1011 /* When generating a shared object, these relocations
1012 are copied into the output file to be resolved at run
1013 time. */
1014
1015 BFD_ASSERT (sreloc != NULL);
1016
1017 skip = FALSE;
1018
1019 outrel.r_offset =
1020 _bfd_elf_section_offset (output_bfd, info, input_section,
1021 rel->r_offset);
1022 if (outrel.r_offset == (bfd_vma) -1)
1023 skip = TRUE;
1024 else if (outrel.r_offset == (bfd_vma) -2)
1025 skip = TRUE;
1026 outrel.r_offset += (input_section->output_section->vma
1027 + input_section->output_offset);
1028
1029 if (skip)
1030 memset (&outrel, 0, sizeof outrel);
1031 /* h->dynindx may be -1 if the symbol was marked to
1032 become local. */
1033 else if (h != NULL
1034 && ((! info->symbolic && h->dynindx != -1)
1035 || !h->def_regular))
1036 {
1037 BFD_ASSERT (h->dynindx != -1);
1038 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1039 outrel.r_addend = rel->r_addend;
1040 }
1041 else
1042 {
1043 if (r_type == R_OR1K_32)
1044 {
1045 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1046 outrel.r_addend = relocation + rel->r_addend;
1047 }
1048 else
1049 {
1050 BFD_FAIL ();
1051 _bfd_error_handler
1052 (_("%pB: probably compiled without -fPIC?"),
1053 input_bfd);
1054 bfd_set_error (bfd_error_bad_value);
1055 return FALSE;
1056 }
1057 }
1058
1059 loc = sreloc->contents;
1060 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1061 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1062 break;
1063 }
1064 break;
1065 }
1066
1067 case R_OR1K_TLS_LDM_HI16:
1068 case R_OR1K_TLS_LDM_LO16:
1069 case R_OR1K_TLS_LDO_HI16:
1070 case R_OR1K_TLS_LDO_LO16:
1071 /* TODO: implement support for local dynamic. */
1072 BFD_FAIL ();
1073 _bfd_error_handler
1074 (_("%pB: support for local dynamic not implemented"),
1075 input_bfd);
1076 bfd_set_error (bfd_error_bad_value);
1077 return FALSE;
1078
1079
1080 case R_OR1K_TLS_GD_HI16:
1081 case R_OR1K_TLS_GD_LO16:
1082 case R_OR1K_TLS_IE_HI16:
1083 case R_OR1K_TLS_IE_LO16:
1084 {
1085 bfd_vma gotoff;
1086 Elf_Internal_Rela rela;
1087 bfd_byte *loc;
1088 int dynamic;
1089
1090 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1091
1092 /* Mark as TLS related GOT entry by setting
1093 bit 2 as well as bit 1. */
1094 if (h != NULL)
1095 {
1096 gotoff = h->got.offset;
1097 h->got.offset |= 3;
1098 }
1099 else
1100 {
1101 gotoff = local_got_offsets[r_symndx];
1102 local_got_offsets[r_symndx] |= 3;
1103 }
1104
1105 /* Only process the relocation once. */
1106 if (gotoff & 1)
1107 {
1108 relocation = sgot->output_offset + (gotoff & ~3);
1109 break;
1110 }
1111
1112 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1113 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1114
1115 /* Dynamic entries will require relocations. if we do not need
1116 them we will just use the default R_OR1K_NONE and
1117 not set anything. */
1118 dynamic = bfd_link_pic (info)
1119 || (sec && (sec->flags & SEC_ALLOC) != 0
1120 && h != NULL
1121 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1122
1123 /* Shared GD. */
1124 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
1125 || howto->type == R_OR1K_TLS_GD_LO16))
1126 {
1127 int i;
1128
1129 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1130 for (i = 0; i < 2; ++i)
1131 {
1132 rela.r_offset = sgot->output_section->vma +
1133 sgot->output_offset + gotoff + i*4;
1134 if (h != NULL && h->dynindx != -1)
1135 {
1136 rela.r_info = ELF32_R_INFO (h->dynindx,
1137 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1138 rela.r_addend = 0;
1139 }
1140 else
1141 {
1142 rela.r_info = ELF32_R_INFO (0,
1143 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1144 rela.r_addend = tpoff (info, relocation);
1145 }
1146
1147 loc = sreloc->contents;
1148 loc += sreloc->reloc_count++ *
1149 sizeof (Elf32_External_Rela);
1150
1151 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1152 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1153 }
1154 }
1155 /* Static GD. */
1156 else if (howto->type == R_OR1K_TLS_GD_HI16
1157 || howto->type == R_OR1K_TLS_GD_LO16)
1158 {
1159 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1160 bfd_put_32 (output_bfd, tpoff (info, relocation),
1161 sgot->contents + gotoff + 4);
1162 }
1163 /* Shared IE. */
1164 else if (dynamic)
1165 {
1166 /* Add TPOFF GOT and rela entries. */
1167 rela.r_offset = sgot->output_section->vma +
1168 sgot->output_offset + gotoff;
1169 if (h != NULL && h->dynindx != -1)
1170 {
1171 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1172 rela.r_addend = 0;
1173 }
1174 else
1175 {
1176 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1177 rela.r_addend = tpoff (info, relocation);
1178 }
1179
1180 loc = sreloc->contents;
1181 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1182
1183 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1184 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1185 }
1186 /* Static IE. */
1187 else
1188 {
1189 bfd_put_32 (output_bfd, tpoff (info, relocation),
1190 sgot->contents + gotoff);
1191 }
1192 relocation = sgot->output_offset + gotoff;
1193 break;
1194 }
1195 case R_OR1K_TLS_LE_HI16:
1196 case R_OR1K_TLS_LE_LO16:
1197
1198 /* Relocation is offset from TP. */
1199 relocation = tpoff (info, relocation);
1200 break;
1201
1202 case R_OR1K_TLS_DTPMOD:
1203 case R_OR1K_TLS_DTPOFF:
1204 case R_OR1K_TLS_TPOFF:
1205 /* These are resolved dynamically on load and shouldn't
1206 be used as linker input. */
1207 BFD_FAIL ();
1208 _bfd_error_handler
1209 (_("%pB: will not resolve runtime TLS relocation"),
1210 input_bfd);
1211 bfd_set_error (bfd_error_bad_value);
1212 return FALSE;
1213
1214 default:
1215 break;
1216 }
1217 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1218 rel->r_offset, relocation, rel->r_addend);
1219
1220 if (r != bfd_reloc_ok)
1221 {
1222 const char *msg = NULL;
1223
1224 switch (r)
1225 {
1226 case bfd_reloc_overflow:
1227 (*info->callbacks->reloc_overflow)
1228 (info, (h ? &h->root : NULL), name, howto->name,
1229 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1230 break;
1231
1232 case bfd_reloc_undefined:
1233 (*info->callbacks->undefined_symbol)
1234 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1235 break;
1236
1237 case bfd_reloc_outofrange:
1238 msg = _("internal error: out of range error");
1239 break;
1240
1241 case bfd_reloc_notsupported:
1242 msg = _("internal error: unsupported relocation error");
1243 break;
1244
1245 case bfd_reloc_dangerous:
1246 msg = _("internal error: dangerous relocation");
1247 break;
1248
1249 default:
1250 msg = _("internal error: unknown error");
1251 break;
1252 }
1253
1254 if (msg)
1255 (*info->callbacks->warning) (info, msg, name, input_bfd,
1256 input_section, rel->r_offset);
1257 }
1258 }
1259
1260 return TRUE;
1261 }
1262
1263 /* Return the section that should be marked against GC for a given
1264 relocation. */
1265
1266 static asection *
1267 or1k_elf_gc_mark_hook (asection *sec,
1268 struct bfd_link_info *info,
1269 Elf_Internal_Rela *rel,
1270 struct elf_link_hash_entry *h,
1271 Elf_Internal_Sym *sym)
1272 {
1273 if (h != NULL)
1274 switch (ELF32_R_TYPE (rel->r_info))
1275 {
1276 case R_OR1K_GNU_VTINHERIT:
1277 case R_OR1K_GNU_VTENTRY:
1278 return NULL;
1279 }
1280
1281 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1282 }
1283
1284 /* Look through the relocs for a section during the first phase. */
1285
1286 static bfd_boolean
1287 or1k_elf_check_relocs (bfd *abfd,
1288 struct bfd_link_info *info,
1289 asection *sec,
1290 const Elf_Internal_Rela *relocs)
1291 {
1292 Elf_Internal_Shdr *symtab_hdr;
1293 struct elf_link_hash_entry **sym_hashes;
1294 const Elf_Internal_Rela *rel;
1295
1296 const Elf_Internal_Rela *rel_end;
1297 struct elf_or1k_link_hash_table *htab;
1298 bfd *dynobj;
1299 asection *sreloc = NULL;
1300
1301 if (bfd_link_relocatable (info))
1302 return TRUE;
1303
1304 /* Don't do anything special with non-loaded, non-alloced sections.
1305 In particular, any relocs in such sections should not affect GOT
1306 and PLT reference counting (ie. we don't allow them to create GOT
1307 or PLT entries), there's no possibility or desire to optimize TLS
1308 relocs, and there's not much point in propagating relocs to shared
1309 libs that the dynamic linker won't relocate. */
1310 if ((sec->flags & SEC_ALLOC) == 0)
1311 return TRUE;
1312
1313 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1314 sym_hashes = elf_sym_hashes (abfd);
1315
1316 htab = or1k_elf_hash_table (info);
1317 if (htab == NULL)
1318 return FALSE;
1319
1320 dynobj = htab->root.dynobj;
1321
1322 rel_end = relocs + sec->reloc_count;
1323 for (rel = relocs; rel < rel_end; rel++)
1324 {
1325 struct elf_link_hash_entry *h;
1326 unsigned long r_symndx;
1327 unsigned char tls_type;
1328
1329 r_symndx = ELF32_R_SYM (rel->r_info);
1330 if (r_symndx < symtab_hdr->sh_info)
1331 h = NULL;
1332 else
1333 {
1334 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1335 while (h->root.type == bfd_link_hash_indirect
1336 || h->root.type == bfd_link_hash_warning)
1337 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1338 }
1339
1340 switch (ELF32_R_TYPE (rel->r_info))
1341 {
1342 case R_OR1K_TLS_GD_HI16:
1343 case R_OR1K_TLS_GD_LO16:
1344 tls_type = TLS_GD;
1345 break;
1346 case R_OR1K_TLS_LDM_HI16:
1347 case R_OR1K_TLS_LDM_LO16:
1348 case R_OR1K_TLS_LDO_HI16:
1349 case R_OR1K_TLS_LDO_LO16:
1350 tls_type = TLS_LD;
1351 break;
1352 case R_OR1K_TLS_IE_HI16:
1353 case R_OR1K_TLS_IE_LO16:
1354 tls_type = TLS_IE;
1355 break;
1356 case R_OR1K_TLS_LE_HI16:
1357 case R_OR1K_TLS_LE_LO16:
1358 tls_type = TLS_LE;
1359 break;
1360 default:
1361 tls_type = TLS_NONE;
1362 }
1363
1364 /* Record TLS type. */
1365 if (h != NULL)
1366 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
1367 else
1368 {
1369 unsigned char *local_tls_type;
1370
1371 /* This is a TLS type record for a local symbol. */
1372 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1373 if (local_tls_type == NULL)
1374 {
1375 bfd_size_type size;
1376
1377 size = symtab_hdr->sh_info;
1378 local_tls_type = bfd_zalloc (abfd, size);
1379 if (local_tls_type == NULL)
1380 return FALSE;
1381 elf_or1k_local_tls_type (abfd) = local_tls_type;
1382 }
1383 local_tls_type[r_symndx] = tls_type;
1384 }
1385
1386 switch (ELF32_R_TYPE (rel->r_info))
1387 {
1388 /* This relocation describes the C++ object vtable hierarchy.
1389 Reconstruct it for later use during GC. */
1390 case R_OR1K_GNU_VTINHERIT:
1391 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1392 return FALSE;
1393 break;
1394
1395 /* This relocation describes which C++ vtable entries are actually
1396 used. Record for later use during GC. */
1397 case R_OR1K_GNU_VTENTRY:
1398 BFD_ASSERT (h != NULL);
1399 if (h != NULL
1400 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1401 return FALSE;
1402 break;
1403
1404 /* This relocation requires .plt entry. */
1405 case R_OR1K_PLT26:
1406 if (h != NULL)
1407 {
1408 h->needs_plt = 1;
1409 h->plt.refcount += 1;
1410 }
1411 break;
1412
1413 case R_OR1K_GOT16:
1414 case R_OR1K_GOTOFF_HI16:
1415 case R_OR1K_GOTOFF_LO16:
1416 case R_OR1K_TLS_GD_HI16:
1417 case R_OR1K_TLS_GD_LO16:
1418 case R_OR1K_TLS_IE_HI16:
1419 case R_OR1K_TLS_IE_LO16:
1420 if (htab->root.sgot == NULL)
1421 {
1422 if (dynobj == NULL)
1423 htab->root.dynobj = dynobj = abfd;
1424 if (!_bfd_elf_create_got_section (dynobj, info))
1425 return FALSE;
1426 }
1427
1428 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1429 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1430 {
1431 if (h != NULL)
1432 h->got.refcount += 1;
1433 else
1434 {
1435 bfd_signed_vma *local_got_refcounts;
1436
1437 /* This is a global offset table entry for a local symbol. */
1438 local_got_refcounts = elf_local_got_refcounts (abfd);
1439 if (local_got_refcounts == NULL)
1440 {
1441 bfd_size_type size;
1442
1443 size = symtab_hdr->sh_info;
1444 size *= sizeof (bfd_signed_vma);
1445 local_got_refcounts = bfd_zalloc (abfd, size);
1446 if (local_got_refcounts == NULL)
1447 return FALSE;
1448 elf_local_got_refcounts (abfd) = local_got_refcounts;
1449 }
1450 local_got_refcounts[r_symndx] += 1;
1451 }
1452 }
1453 break;
1454
1455 case R_OR1K_INSN_REL_26:
1456 case R_OR1K_HI_16_IN_INSN:
1457 case R_OR1K_LO_16_IN_INSN:
1458 case R_OR1K_32:
1459 /* R_OR1K_16? */
1460 {
1461 if (h != NULL && !bfd_link_pic (info))
1462 {
1463 /* We may need a copy reloc. */
1464 h->non_got_ref = 1;
1465
1466 /* We may also need a .plt entry. */
1467 h->plt.refcount += 1;
1468 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1469 h->pointer_equality_needed = 1;
1470 }
1471
1472 /* If we are creating a shared library, and this is a reloc
1473 against a global symbol, or a non PC relative reloc
1474 against a local symbol, then we need to copy the reloc
1475 into the shared library. However, if we are linking with
1476 -Bsymbolic, we do not need to copy a reloc against a
1477 global symbol which is defined in an object we are
1478 including in the link (i.e., DEF_REGULAR is set). At
1479 this point we have not seen all the input files, so it is
1480 possible that DEF_REGULAR is not set now but will be set
1481 later (it is never cleared). In case of a weak definition,
1482 DEF_REGULAR may be cleared later by a strong definition in
1483 a shared library. We account for that possibility below by
1484 storing information in the relocs_copied field of the hash
1485 table entry. A similar situation occurs when creating
1486 shared libraries and symbol visibility changes render the
1487 symbol local.
1488
1489 If on the other hand, we are creating an executable, we
1490 may need to keep relocations for symbols satisfied by a
1491 dynamic library if we manage to avoid copy relocs for the
1492 symbol. */
1493
1494 if ((bfd_link_pic (info)
1495 && (sec->flags & SEC_ALLOC) != 0
1496 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1497 || (h != NULL
1498 && (!SYMBOLIC_BIND (info, h)
1499 || h->root.type == bfd_link_hash_defweak
1500 || !h->def_regular))))
1501 || (!bfd_link_pic (info)
1502 && (sec->flags & SEC_ALLOC) != 0
1503 && h != NULL
1504 && (h->root.type == bfd_link_hash_defweak
1505 || !h->def_regular)))
1506 {
1507 struct elf_dyn_relocs *p;
1508 struct elf_dyn_relocs **head;
1509
1510 /* When creating a shared object, we must copy these
1511 relocs into the output file. We create a reloc
1512 section in dynobj and make room for the reloc. */
1513 if (sreloc == NULL)
1514 {
1515 const char *name;
1516 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1517 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1518
1519 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1520 if (name == NULL)
1521 return FALSE;
1522
1523 if (strncmp (name, ".rela", 5) != 0
1524 || strcmp (bfd_get_section_name (abfd, sec),
1525 name + 5) != 0)
1526 {
1527 _bfd_error_handler
1528 /* xgettext:c-format */
1529 (_("%pB: bad relocation section name `%s\'"),
1530 abfd, name);
1531 }
1532
1533 if (htab->root.dynobj == NULL)
1534 htab->root.dynobj = abfd;
1535 dynobj = htab->root.dynobj;
1536
1537 sreloc = bfd_get_section_by_name (dynobj, name);
1538 if (sreloc == NULL)
1539 {
1540 sreloc = _bfd_elf_make_dynamic_reloc_section
1541 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1542
1543 if (sreloc == NULL)
1544 return FALSE;
1545 }
1546 elf_section_data (sec)->sreloc = sreloc;
1547 }
1548
1549 /* If this is a global symbol, we count the number of
1550 relocations we need for this symbol. */
1551 if (h != NULL)
1552 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1553 else
1554 {
1555 /* Track dynamic relocs needed for local syms too.
1556 We really need local syms available to do this
1557 easily. Oh well. */
1558
1559 asection *s;
1560 Elf_Internal_Sym *isym;
1561 void *vpp;
1562
1563 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1564 abfd, r_symndx);
1565 if (isym == NULL)
1566 return FALSE;
1567
1568 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1569 if (s == NULL)
1570 return FALSE;
1571
1572 vpp = &elf_section_data (s)->local_dynrel;
1573 head = (struct elf_dyn_relocs **) vpp;
1574 }
1575
1576 p = *head;
1577 if (p == NULL || p->sec != sec)
1578 {
1579 bfd_size_type amt = sizeof *p;
1580 p = ((struct elf_dyn_relocs *)
1581 bfd_alloc (htab->root.dynobj, amt));
1582 if (p == NULL)
1583 return FALSE;
1584 p->next = *head;
1585 *head = p;
1586 p->sec = sec;
1587 p->count = 0;
1588 p->pc_count = 0;
1589 }
1590
1591 p->count += 1;
1592 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1593 p->pc_count += 1;
1594 }
1595 }
1596 break;
1597 }
1598 }
1599
1600 return TRUE;
1601 }
1602
1603 /* Finish up the dynamic sections. */
1604
1605 static bfd_boolean
1606 or1k_elf_finish_dynamic_sections (bfd *output_bfd,
1607 struct bfd_link_info *info)
1608 {
1609 bfd *dynobj;
1610 asection *sdyn, *sgot;
1611 struct elf_or1k_link_hash_table *htab;
1612
1613 htab = or1k_elf_hash_table (info);
1614 if (htab == NULL)
1615 return FALSE;
1616
1617 dynobj = htab->root.dynobj;
1618
1619 sgot = htab->root.sgotplt;
1620 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1621
1622 if (htab->root.dynamic_sections_created)
1623 {
1624 asection *splt;
1625 Elf32_External_Dyn *dyncon, *dynconend;
1626
1627 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1628
1629 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1630 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1631
1632 for (; dyncon < dynconend; dyncon++)
1633 {
1634 Elf_Internal_Dyn dyn;
1635 asection *s;
1636
1637 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1638
1639 switch (dyn.d_tag)
1640 {
1641 default:
1642 continue;
1643
1644 case DT_PLTGOT:
1645 s = htab->root.sgotplt;
1646 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1647 break;
1648
1649 case DT_JMPREL:
1650 s = htab->root.srelplt;
1651 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1652 break;
1653
1654 case DT_PLTRELSZ:
1655 s = htab->root.srelplt;
1656 dyn.d_un.d_val = s->size;
1657 break;
1658 }
1659 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1660 }
1661
1662
1663 /* Fill in the first entry in the procedure linkage table. */
1664 splt = htab->root.splt;
1665 if (splt && splt->size > 0)
1666 {
1667 if (bfd_link_pic (info))
1668 {
1669 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1670 splt->contents);
1671 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1672 splt->contents + 4);
1673 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1674 splt->contents + 8);
1675 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1676 splt->contents + 12);
1677 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1678 splt->contents + 16);
1679 }
1680 else
1681 {
1682 unsigned long addr;
1683 /* addr = .got + 4 */
1684 addr = sgot->output_section->vma + sgot->output_offset + 4;
1685 bfd_put_32 (output_bfd,
1686 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1687 splt->contents);
1688 bfd_put_32 (output_bfd,
1689 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1690 splt->contents + 4);
1691 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1692 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1693 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1694 }
1695
1696 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1697 }
1698 }
1699
1700 /* Set the first entry in the global offset table to the address of
1701 the dynamic section. */
1702 if (sgot && sgot->size > 0)
1703 {
1704 if (sdyn == NULL)
1705 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1706 else
1707 bfd_put_32 (output_bfd,
1708 sdyn->output_section->vma + sdyn->output_offset,
1709 sgot->contents);
1710 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1711 }
1712
1713 if (htab->root.sgot && htab->root.sgot->size > 0)
1714 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
1715
1716 return TRUE;
1717 }
1718
1719 /* Finish up dynamic symbol handling. We set the contents of various
1720 dynamic sections here. */
1721
1722 static bfd_boolean
1723 or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
1724 struct bfd_link_info *info,
1725 struct elf_link_hash_entry *h,
1726 Elf_Internal_Sym *sym)
1727 {
1728 struct elf_or1k_link_hash_table *htab;
1729 bfd_byte *loc;
1730
1731 htab = or1k_elf_hash_table (info);
1732 if (htab == NULL)
1733 return FALSE;
1734
1735 if (h->plt.offset != (bfd_vma) -1)
1736 {
1737 asection *splt;
1738 asection *sgot;
1739 asection *srela;
1740
1741 bfd_vma plt_index;
1742 bfd_vma got_offset;
1743 bfd_vma got_addr;
1744 Elf_Internal_Rela rela;
1745
1746 /* This symbol has an entry in the procedure linkage table. Set
1747 it up. */
1748 BFD_ASSERT (h->dynindx != -1);
1749
1750 splt = htab->root.splt;
1751 sgot = htab->root.sgotplt;
1752 srela = htab->root.srelplt;
1753 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1754
1755 /* Get the index in the procedure linkage table which
1756 corresponds to this symbol. This is the index of this symbol
1757 in all the symbols for which we are making plt entries. The
1758 first entry in the procedure linkage table is reserved. */
1759 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1760
1761 /* Get the offset into the .got table of the entry that
1762 corresponds to this function. Each .got entry is 4 bytes.
1763 The first three are reserved. */
1764 got_offset = (plt_index + 3) * 4;
1765 got_addr = got_offset;
1766
1767 /* Fill in the entry in the procedure linkage table. */
1768 if (! bfd_link_pic (info))
1769 {
1770 got_addr += htab->root.sgotplt->output_section->vma
1771 + htab->root.sgotplt->output_offset;
1772 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1773 splt->contents + h->plt.offset);
1774 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1775 splt->contents + h->plt.offset + 4);
1776 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1777 splt->contents + h->plt.offset + 8);
1778 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1779 splt->contents + h->plt.offset + 12);
1780 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1781 | plt_index * sizeof (Elf32_External_Rela),
1782 splt->contents + h->plt.offset + 16);
1783 }
1784 else
1785 {
1786 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1787 splt->contents + h->plt.offset);
1788 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1789 | plt_index * sizeof (Elf32_External_Rela),
1790 splt->contents + h->plt.offset + 4);
1791 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1792 splt->contents + h->plt.offset + 8);
1793 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1794 splt->contents + h->plt.offset + 12);
1795 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1796 splt->contents + h->plt.offset + 16);
1797 }
1798
1799 /* Fill in the entry in the global offset table. */
1800 bfd_put_32 (output_bfd,
1801 (splt->output_section->vma
1802 + splt->output_offset), /* Same offset. */
1803 sgot->contents + got_offset);
1804
1805 /* Fill in the entry in the .rela.plt section. */
1806 rela.r_offset = (sgot->output_section->vma
1807 + sgot->output_offset
1808 + got_offset);
1809 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1810 rela.r_addend = 0;
1811 loc = srela->contents;
1812 loc += plt_index * sizeof (Elf32_External_Rela);
1813 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1814
1815 if (!h->def_regular)
1816 {
1817 /* Mark the symbol as undefined, rather than as defined in
1818 the .plt section. Leave the value alone. */
1819 sym->st_shndx = SHN_UNDEF;
1820 }
1821
1822 }
1823
1824 if (h->got.offset != (bfd_vma) -1
1825 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1826 {
1827 asection *sgot;
1828 asection *srela;
1829 Elf_Internal_Rela rela;
1830
1831 /* This symbol has an entry in the global offset table. Set it
1832 up. */
1833 sgot = htab->root.sgot;
1834 srela = htab->root.srelgot;
1835 BFD_ASSERT (sgot != NULL && srela != NULL);
1836
1837 rela.r_offset = (sgot->output_section->vma
1838 + sgot->output_offset
1839 + (h->got.offset &~ 1));
1840
1841 /* If this is a -Bsymbolic link, and the symbol is defined
1842 locally, we just want to emit a RELATIVE reloc. Likewise if
1843 the symbol was forced to be local because of a version file.
1844 The entry in the global offset table will already have been
1845 initialized in the relocate_section function. */
1846 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
1847 {
1848 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1849 rela.r_addend = (h->root.u.def.value
1850 + h->root.u.def.section->output_section->vma
1851 + h->root.u.def.section->output_offset);
1852 }
1853 else
1854 {
1855 BFD_ASSERT ((h->got.offset & 1) == 0);
1856 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1857 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1858 rela.r_addend = 0;
1859 }
1860
1861 loc = srela->contents;
1862 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1863 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1864 ++srela->reloc_count;
1865 }
1866
1867 if (h->needs_copy)
1868 {
1869 asection *s;
1870 Elf_Internal_Rela rela;
1871
1872 /* This symbols needs a copy reloc. Set it up. */
1873 BFD_ASSERT (h->dynindx != -1
1874 && (h->root.type == bfd_link_hash_defined
1875 || h->root.type == bfd_link_hash_defweak));
1876
1877 rela.r_offset = (h->root.u.def.value
1878 + h->root.u.def.section->output_section->vma
1879 + h->root.u.def.section->output_offset);
1880 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
1881 rela.r_addend = 0;
1882 if (h->root.u.def.section == htab->root.sdynrelro)
1883 s = htab->root.sreldynrelro;
1884 else
1885 s = htab->root.srelbss;
1886 loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
1887 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1888 ++s->reloc_count;
1889 }
1890
1891 /* Mark some specially defined symbols as absolute. */
1892 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1893 || h == htab->root.hgot)
1894 sym->st_shndx = SHN_ABS;
1895
1896 return TRUE;
1897 }
1898
1899 static enum elf_reloc_type_class
1900 or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1901 const asection *rel_sec ATTRIBUTE_UNUSED,
1902 const Elf_Internal_Rela *rela)
1903 {
1904 switch ((int) ELF32_R_TYPE (rela->r_info))
1905 {
1906 case R_OR1K_RELATIVE: return reloc_class_relative;
1907 case R_OR1K_JMP_SLOT: return reloc_class_plt;
1908 case R_OR1K_COPY: return reloc_class_copy;
1909 default: return reloc_class_normal;
1910 }
1911 }
1912
1913 /* Find dynamic relocs for H that apply to read-only sections. */
1914
1915 static asection *
1916 readonly_dynrelocs (struct elf_link_hash_entry *h)
1917 {
1918 struct elf_dyn_relocs *p;
1919 struct elf_or1k_link_hash_entry *eh = (struct elf_or1k_link_hash_entry *) h;
1920
1921 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1922 {
1923 asection *s = p->sec->output_section;
1924
1925 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1926 return p->sec;
1927 }
1928 return NULL;
1929 }
1930
1931 /* Adjust a symbol defined by a dynamic object and referenced by a
1932 regular object. The current definition is in some section of the
1933 dynamic object, but we're not including those sections. We have to
1934 change the definition to something the rest of the link can
1935 understand. */
1936
1937 static bfd_boolean
1938 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1939 struct elf_link_hash_entry *h)
1940 {
1941 struct elf_or1k_link_hash_table *htab;
1942 bfd *dynobj;
1943 asection *s, *srel;
1944
1945 dynobj = elf_hash_table (info)->dynobj;
1946
1947 /* Make sure we know what is going on here. */
1948 BFD_ASSERT (dynobj != NULL
1949 && (h->needs_plt
1950 || h->is_weakalias
1951 || (h->def_dynamic
1952 && h->ref_regular
1953 && !h->def_regular)));
1954
1955 /* If this is a function, put it in the procedure linkage table. We
1956 will fill in the contents of the procedure linkage table later,
1957 when we know the address of the .got section. */
1958 if (h->type == STT_FUNC
1959 || h->needs_plt)
1960 {
1961 if (! bfd_link_pic (info)
1962 && !h->def_dynamic
1963 && !h->ref_dynamic
1964 && h->root.type != bfd_link_hash_undefweak
1965 && h->root.type != bfd_link_hash_undefined)
1966 {
1967 /* This case can occur if we saw a PLT reloc in an input
1968 file, but the symbol was never referred to by a dynamic
1969 object. In such a case, we don't actually need to build
1970 a procedure linkage table, and we can just do a PCREL
1971 reloc instead. */
1972 h->plt.offset = (bfd_vma) -1;
1973 h->needs_plt = 0;
1974 }
1975
1976 return TRUE;
1977 }
1978 else
1979 h->plt.offset = (bfd_vma) -1;
1980
1981 /* If this is a weak symbol, and there is a real definition, the
1982 processor independent code will have arranged for us to see the
1983 real definition first, and we can just use the same value. */
1984 if (h->is_weakalias)
1985 {
1986 struct elf_link_hash_entry *def = weakdef (h);
1987 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1988 h->root.u.def.section = def->root.u.def.section;
1989 h->root.u.def.value = def->root.u.def.value;
1990 return TRUE;
1991 }
1992
1993 /* This is a reference to a symbol defined by a dynamic object which
1994 is not a function. */
1995
1996 /* If we are creating a shared library, we must presume that the
1997 only references to the symbol are via the global offset table.
1998 For such cases we need not do anything here; the relocations will
1999 be handled correctly by relocate_section. */
2000 if (bfd_link_pic (info))
2001 return TRUE;
2002
2003 /* If there are no references to this symbol that do not use the
2004 GOT, we don't need to generate a copy reloc. */
2005 if (!h->non_got_ref)
2006 return TRUE;
2007
2008 /* If -z nocopyreloc was given, we won't generate them either. */
2009 if (info->nocopyreloc)
2010 {
2011 h->non_got_ref = 0;
2012 return TRUE;
2013 }
2014
2015 /* If we don't find any dynamic relocs in read-only sections, then
2016 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2017 if (!readonly_dynrelocs (h))
2018 {
2019 h->non_got_ref = 0;
2020 return TRUE;
2021 }
2022
2023 /* We must allocate the symbol in our .dynbss section, which will
2024 become part of the .bss section of the executable. There will be
2025 an entry for this symbol in the .dynsym section. The dynamic
2026 object will contain position independent code, so all references
2027 from the dynamic object to this symbol will go through the global
2028 offset table. The dynamic linker will use the .dynsym entry to
2029 determine the address it must put in the global offset table, so
2030 both the dynamic object and the regular object will refer to the
2031 same memory location for the variable. */
2032
2033 htab = or1k_elf_hash_table (info);
2034 if (htab == NULL)
2035 return FALSE;
2036
2037 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2038 to copy the initial value out of the dynamic object and into the
2039 runtime process image. We need to remember the offset into the
2040 .rela.bss section we are going to use. */
2041 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2042 {
2043 s = htab->root.sdynrelro;
2044 srel = htab->root.sreldynrelro;
2045 }
2046 else
2047 {
2048 s = htab->root.sdynbss;
2049 srel = htab->root.srelbss;
2050 }
2051 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2052 {
2053 srel->size += sizeof (Elf32_External_Rela);
2054 h->needs_copy = 1;
2055 }
2056
2057 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2058 }
2059
2060 /* Allocate space in .plt, .got and associated reloc sections for
2061 dynamic relocs. */
2062
2063 static bfd_boolean
2064 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2065 {
2066 struct bfd_link_info *info;
2067 struct elf_or1k_link_hash_table *htab;
2068 struct elf_or1k_link_hash_entry *eh;
2069 struct elf_dyn_relocs *p;
2070
2071 if (h->root.type == bfd_link_hash_indirect)
2072 return TRUE;
2073
2074 info = (struct bfd_link_info *) inf;
2075 htab = or1k_elf_hash_table (info);
2076 if (htab == NULL)
2077 return FALSE;
2078
2079 eh = (struct elf_or1k_link_hash_entry *) h;
2080
2081 if (htab->root.dynamic_sections_created
2082 && h->plt.refcount > 0)
2083 {
2084 /* Make sure this symbol is output as a dynamic symbol.
2085 Undefined weak syms won't yet be marked as dynamic. */
2086 if (h->dynindx == -1
2087 && !h->forced_local)
2088 {
2089 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2090 return FALSE;
2091 }
2092
2093 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2094 {
2095 asection *s = htab->root.splt;
2096
2097 /* If this is the first .plt entry, make room for the special
2098 first entry. */
2099 if (s->size == 0)
2100 s->size = PLT_ENTRY_SIZE;
2101
2102 h->plt.offset = s->size;
2103
2104 /* If this symbol is not defined in a regular file, and we are
2105 not generating a shared library, then set the symbol to this
2106 location in the .plt. This is required to make function
2107 pointers compare as equal between the normal executable and
2108 the shared library. */
2109 if (! bfd_link_pic (info)
2110 && !h->def_regular)
2111 {
2112 h->root.u.def.section = s;
2113 h->root.u.def.value = h->plt.offset;
2114 }
2115
2116 /* Make room for this entry. */
2117 s->size += PLT_ENTRY_SIZE;
2118
2119 /* We also need to make an entry in the .got.plt section, which
2120 will be placed in the .got section by the linker script. */
2121 htab->root.sgotplt->size += 4;
2122
2123 /* We also need to make an entry in the .rel.plt section. */
2124 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2125 }
2126 else
2127 {
2128 h->plt.offset = (bfd_vma) -1;
2129 h->needs_plt = 0;
2130 }
2131 }
2132 else
2133 {
2134 h->plt.offset = (bfd_vma) -1;
2135 h->needs_plt = 0;
2136 }
2137
2138 if (h->got.refcount > 0)
2139 {
2140 asection *s;
2141 bfd_boolean dyn;
2142 unsigned char tls_type;
2143
2144 /* Make sure this symbol is output as a dynamic symbol.
2145 Undefined weak syms won't yet be marked as dynamic. */
2146 if (h->dynindx == -1
2147 && !h->forced_local)
2148 {
2149 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2150 return FALSE;
2151 }
2152
2153 s = htab->root.sgot;
2154
2155 h->got.offset = s->size;
2156
2157 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2158
2159 /* TLS GD requires two GOT and two relocs. */
2160 if (tls_type == TLS_GD)
2161 s->size += 8;
2162 else
2163 s->size += 4;
2164 dyn = htab->root.dynamic_sections_created;
2165 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2166 {
2167 if (tls_type == TLS_GD)
2168 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2169 else
2170 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2171 }
2172 }
2173 else
2174 h->got.offset = (bfd_vma) -1;
2175
2176 if (eh->dyn_relocs == NULL)
2177 return TRUE;
2178
2179 /* In the shared -Bsymbolic case, discard space allocated for
2180 dynamic pc-relative relocs against symbols which turn out to be
2181 defined in regular objects. For the normal shared case, discard
2182 space for pc-relative relocs that have become local due to symbol
2183 visibility changes. */
2184
2185 if (bfd_link_pic (info))
2186 {
2187 if (SYMBOL_CALLS_LOCAL (info, h))
2188 {
2189 struct elf_dyn_relocs **pp;
2190
2191 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2192 {
2193 p->count -= p->pc_count;
2194 p->pc_count = 0;
2195 if (p->count == 0)
2196 *pp = p->next;
2197 else
2198 pp = &p->next;
2199 }
2200 }
2201
2202 /* Also discard relocs on undefined weak syms with non-default
2203 visibility. */
2204 if (eh->dyn_relocs != NULL
2205 && h->root.type == bfd_link_hash_undefweak)
2206 {
2207 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2208 eh->dyn_relocs = NULL;
2209
2210 /* Make sure undefined weak symbols are output as a dynamic
2211 symbol in PIEs. */
2212 else if (h->dynindx == -1
2213 && !h->forced_local)
2214 {
2215 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2216 return FALSE;
2217 }
2218 }
2219 }
2220 else
2221 {
2222 /* For the non-shared case, discard space for relocs against
2223 symbols which turn out to need copy relocs or are not
2224 dynamic. */
2225
2226 if (!h->non_got_ref
2227 && ((h->def_dynamic
2228 && !h->def_regular)
2229 || (htab->root.dynamic_sections_created
2230 && (h->root.type == bfd_link_hash_undefweak
2231 || h->root.type == bfd_link_hash_undefined))))
2232 {
2233 /* Make sure this symbol is output as a dynamic symbol.
2234 Undefined weak syms won't yet be marked as dynamic. */
2235 if (h->dynindx == -1
2236 && !h->forced_local)
2237 {
2238 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2239 return FALSE;
2240 }
2241
2242 /* If that succeeded, we know we'll be keeping all the
2243 relocs. */
2244 if (h->dynindx != -1)
2245 goto keep;
2246 }
2247
2248 eh->dyn_relocs = NULL;
2249
2250 keep: ;
2251 }
2252
2253 /* Finally, allocate space. */
2254 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2255 {
2256 asection *sreloc = elf_section_data (p->sec)->sreloc;
2257 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2258 }
2259
2260 return TRUE;
2261 }
2262
2263 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2264 read-only sections. */
2265
2266 static bfd_boolean
2267 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2268 {
2269 asection *sec;
2270
2271 if (h->root.type == bfd_link_hash_indirect)
2272 return TRUE;
2273
2274 sec = readonly_dynrelocs (h);
2275 if (sec != NULL)
2276 {
2277 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2278
2279 info->flags |= DF_TEXTREL;
2280 info->callbacks->minfo
2281 (_("%pB: dynamic relocation against `%T' in read-only section `%pA'\n"),
2282 sec->owner, h->root.root.string, sec);
2283
2284 /* Not an error, just cut short the traversal. */
2285 return FALSE;
2286 }
2287 return TRUE;
2288 }
2289
2290 /* Set the sizes of the dynamic sections. */
2291
2292 static bfd_boolean
2293 or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2294 struct bfd_link_info *info)
2295 {
2296 struct elf_or1k_link_hash_table *htab;
2297 bfd *dynobj;
2298 asection *s;
2299 bfd_boolean relocs;
2300 bfd *ibfd;
2301
2302 htab = or1k_elf_hash_table (info);
2303 if (htab == NULL)
2304 return FALSE;
2305
2306 dynobj = htab->root.dynobj;
2307 BFD_ASSERT (dynobj != NULL);
2308
2309 if (htab->root.dynamic_sections_created)
2310 {
2311 /* Set the contents of the .interp section to the interpreter. */
2312 if (bfd_link_executable (info) && !info->nointerp)
2313 {
2314 s = bfd_get_section_by_name (dynobj, ".interp");
2315 BFD_ASSERT (s != NULL);
2316 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2317 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2318 }
2319 }
2320
2321 /* Set up .got offsets for local syms, and space for local dynamic
2322 relocs. */
2323 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2324 {
2325 bfd_signed_vma *local_got;
2326 bfd_signed_vma *end_local_got;
2327 bfd_size_type locsymcount;
2328 Elf_Internal_Shdr *symtab_hdr;
2329 unsigned char *local_tls_type;
2330 asection *srel;
2331
2332 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2333 continue;
2334
2335 for (s = ibfd->sections; s != NULL; s = s->next)
2336 {
2337 struct elf_dyn_relocs *p;
2338
2339 for (p = ((struct elf_dyn_relocs *)
2340 elf_section_data (s)->local_dynrel);
2341 p != NULL;
2342 p = p->next)
2343 {
2344 if (! bfd_is_abs_section (p->sec)
2345 && bfd_is_abs_section (p->sec->output_section))
2346 {
2347 /* Input section has been discarded, either because
2348 it is a copy of a linkonce section or due to
2349 linker script /DISCARD/, so we'll be discarding
2350 the relocs too. */
2351 }
2352 else if (p->count != 0)
2353 {
2354 srel = elf_section_data (p->sec)->sreloc;
2355 srel->size += p->count * sizeof (Elf32_External_Rela);
2356 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2357 info->flags |= DF_TEXTREL;
2358 }
2359 }
2360 }
2361
2362 local_got = elf_local_got_refcounts (ibfd);
2363 if (!local_got)
2364 continue;
2365
2366 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2367 locsymcount = symtab_hdr->sh_info;
2368 end_local_got = local_got + locsymcount;
2369 s = htab->root.sgot;
2370 srel = htab->root.srelgot;
2371 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2372 for (; local_got < end_local_got; ++local_got)
2373 {
2374 if (*local_got > 0)
2375 {
2376 *local_got = s->size;
2377
2378 /* TLS GD requires two GOT and two relocs. */
2379 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2380 s->size += 8;
2381 else
2382 s->size += 4;
2383 if (bfd_link_pic (info))
2384 {
2385 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2386 srel->size += 2 * sizeof (Elf32_External_Rela);
2387 else
2388 srel->size += sizeof (Elf32_External_Rela);
2389 }
2390 }
2391 else
2392
2393 *local_got = (bfd_vma) -1;
2394
2395 if (local_tls_type)
2396 ++local_tls_type;
2397 }
2398 }
2399
2400 /* Allocate global sym .plt and .got entries, and space for global
2401 sym dynamic relocs. */
2402 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2403
2404 /* We now have determined the sizes of the various dynamic sections.
2405 Allocate memory for them. */
2406 relocs = FALSE;
2407 for (s = dynobj->sections; s != NULL; s = s->next)
2408 {
2409 if ((s->flags & SEC_LINKER_CREATED) == 0)
2410 continue;
2411
2412 if (s == htab->root.splt
2413 || s == htab->root.sgot
2414 || s == htab->root.sgotplt
2415 || s == htab->root.sdynbss
2416 || s == htab->root.sdynrelro)
2417 {
2418 /* Strip this section if we don't need it; see the
2419 comment below. */
2420 }
2421 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2422 {
2423 if (s->size != 0 && s != htab->root.srelplt)
2424 relocs = TRUE;
2425
2426 /* We use the reloc_count field as a counter if we need
2427 to copy relocs into the output file. */
2428 s->reloc_count = 0;
2429 }
2430 else
2431 /* It's not one of our sections, so don't allocate space. */
2432 continue;
2433
2434 if (s->size == 0)
2435 {
2436 /* If we don't need this section, strip it from the
2437 output file. This is mostly to handle .rela.bss and
2438 .rela.plt. We must create both sections in
2439 create_dynamic_sections, because they must be created
2440 before the linker maps input sections to output
2441 sections. The linker does that before
2442 adjust_dynamic_symbol is called, and it is that
2443 function which decides whether anything needs to go
2444 into these sections. */
2445 s->flags |= SEC_EXCLUDE;
2446 continue;
2447 }
2448
2449 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2450 continue;
2451
2452 /* Allocate memory for the section contents. We use bfd_zalloc
2453 here in case unused entries are not reclaimed before the
2454 section's contents are written out. This should not happen,
2455 but this way if it does, we get a R_OR1K_NONE reloc instead
2456 of garbage. */
2457 s->contents = bfd_zalloc (dynobj, s->size);
2458
2459 if (s->contents == NULL)
2460 return FALSE;
2461 }
2462
2463 if (htab->root.dynamic_sections_created)
2464 {
2465 /* Add some entries to the .dynamic section. We fill in the
2466 values later, in or1k_elf_finish_dynamic_sections, but we
2467 must add the entries now so that we get the correct size for
2468 the .dynamic section. The DT_DEBUG entry is filled in by the
2469 dynamic linker and used by the debugger. */
2470 #define add_dynamic_entry(TAG, VAL) \
2471 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2472
2473 if (bfd_link_executable (info))
2474 {
2475 if (! add_dynamic_entry (DT_DEBUG, 0))
2476 return FALSE;
2477 }
2478
2479 if (htab->root.splt->size != 0)
2480 {
2481 if (! add_dynamic_entry (DT_PLTGOT, 0)
2482 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2483 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2484 || ! add_dynamic_entry (DT_JMPREL, 0))
2485 return FALSE;
2486 }
2487
2488 if (relocs)
2489 {
2490 if (! add_dynamic_entry (DT_RELA, 0)
2491 || ! add_dynamic_entry (DT_RELASZ, 0)
2492 || ! add_dynamic_entry (DT_RELAENT,
2493 sizeof (Elf32_External_Rela)))
2494 return FALSE;
2495
2496 /* If any dynamic relocs apply to a read-only section,
2497 then we need a DT_TEXTREL entry. */
2498 if ((info->flags & DF_TEXTREL) == 0)
2499 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
2500
2501 if ((info->flags & DF_TEXTREL) != 0)
2502 {
2503 if (! add_dynamic_entry (DT_TEXTREL, 0))
2504 return FALSE;
2505 }
2506 }
2507 }
2508
2509 #undef add_dynamic_entry
2510 return TRUE;
2511 }
2512
2513 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2514
2515 static void
2516 or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
2517 struct elf_link_hash_entry *dir,
2518 struct elf_link_hash_entry *ind)
2519 {
2520 struct elf_or1k_link_hash_entry * edir;
2521 struct elf_or1k_link_hash_entry * eind;
2522
2523 edir = (struct elf_or1k_link_hash_entry *) dir;
2524 eind = (struct elf_or1k_link_hash_entry *) ind;
2525
2526 if (eind->dyn_relocs != NULL)
2527 {
2528 if (edir->dyn_relocs != NULL)
2529 {
2530 struct elf_dyn_relocs **pp;
2531 struct elf_dyn_relocs *p;
2532
2533 /* Add reloc counts against the indirect sym to the direct sym
2534 list. Merge any entries against the same section. */
2535 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2536 {
2537 struct elf_dyn_relocs *q;
2538
2539 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2540 if (q->sec == p->sec)
2541 {
2542 q->pc_count += p->pc_count;
2543 q->count += p->count;
2544 *pp = p->next;
2545 break;
2546 }
2547 if (q == NULL)
2548 pp = &p->next;
2549 }
2550 *pp = edir->dyn_relocs;
2551 }
2552
2553 edir->dyn_relocs = eind->dyn_relocs;
2554 eind->dyn_relocs = NULL;
2555 }
2556
2557 if (ind->root.type == bfd_link_hash_indirect)
2558 {
2559 if (dir->got.refcount <= 0)
2560 {
2561 edir->tls_type = eind->tls_type;
2562 eind->tls_type = TLS_UNKNOWN;
2563 }
2564 }
2565
2566 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2567 }
2568
2569 /* Set the right machine number. */
2570
2571 static bfd_boolean
2572 or1k_elf_object_p (bfd *abfd)
2573 {
2574 unsigned long mach = bfd_mach_or1k;
2575
2576 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2577 mach = bfd_mach_or1knd;
2578
2579 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2580 }
2581
2582 /* Store the machine number in the flags field. */
2583
2584 static void
2585 or1k_elf_final_write_processing (bfd *abfd,
2586 bfd_boolean linker ATTRIBUTE_UNUSED)
2587 {
2588 switch (bfd_get_mach (abfd))
2589 {
2590 default:
2591 case bfd_mach_or1k:
2592 break;
2593 case bfd_mach_or1knd:
2594 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2595 break;
2596 }
2597 }
2598
2599 static bfd_boolean
2600 or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2601 {
2602 BFD_ASSERT (!elf_flags_init (abfd)
2603 || elf_elfheader (abfd)->e_flags == flags);
2604
2605 elf_elfheader (abfd)->e_flags = flags;
2606 elf_flags_init (abfd) = TRUE;
2607 return TRUE;
2608 }
2609
2610 /* Make sure all input files are consistent with respect to
2611 EF_OR1K_NODELAY flag setting. */
2612
2613 static bfd_boolean
2614 elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2615 {
2616 bfd *obfd = info->output_bfd;
2617 flagword out_flags;
2618 flagword in_flags;
2619
2620 in_flags = elf_elfheader (ibfd)->e_flags;
2621 out_flags = elf_elfheader (obfd)->e_flags;
2622
2623 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2624 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2625 return TRUE;
2626
2627 if (!elf_flags_init (obfd))
2628 {
2629 elf_flags_init (obfd) = TRUE;
2630 elf_elfheader (obfd)->e_flags = in_flags;
2631
2632 return TRUE;
2633 }
2634
2635 if (in_flags == out_flags)
2636 return TRUE;
2637
2638 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2639 {
2640 _bfd_error_handler
2641 (_("%pB: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
2642
2643 bfd_set_error (bfd_error_bad_value);
2644 return FALSE;
2645 }
2646
2647 return TRUE;
2648
2649 }
2650
2651 #define ELF_ARCH bfd_arch_or1k
2652 #define ELF_MACHINE_CODE EM_OR1K
2653 #define ELF_TARGET_ID OR1K_ELF_DATA
2654 #define ELF_MAXPAGESIZE 0x2000
2655
2656 #define TARGET_BIG_SYM or1k_elf32_vec
2657 #define TARGET_BIG_NAME "elf32-or1k"
2658
2659 #define elf_info_to_howto_rel NULL
2660 #define elf_info_to_howto or1k_info_to_howto_rela
2661 #define elf_backend_relocate_section or1k_elf_relocate_section
2662 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
2663 #define elf_backend_check_relocs or1k_elf_check_relocs
2664 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2665 #define elf_backend_can_gc_sections 1
2666 #define elf_backend_rela_normal 1
2667
2668 #define bfd_elf32_mkobject elf_or1k_mkobject
2669
2670 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2671 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2672 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2673 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2674
2675 #define elf_backend_object_p or1k_elf_object_p
2676 #define elf_backend_final_write_processing or1k_elf_final_write_processing
2677 #define elf_backend_can_refcount 1
2678
2679 #define elf_backend_plt_readonly 1
2680 #define elf_backend_want_got_plt 1
2681 #define elf_backend_want_plt_sym 0
2682 #define elf_backend_got_header_size 12
2683 #define elf_backend_dtrel_excludes_plt 1
2684 #define elf_backend_want_dynrelro 1
2685
2686 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2687 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
2688 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
2689 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2690 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2691 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2692 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
2693
2694 #include "elf32-target.h"
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