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x86: drop "mem" operand type attribute
[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 bfd_boolean
705 or1k_info_to_howto_rela (bfd * abfd,
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: unsupported relocation type %#x"),
716 abfd, r_type);
717 bfd_set_error (bfd_error_bad_value);
718 return FALSE;
719 }
720 cache_ptr->howto = & or1k_elf_howto_table[r_type];
721 return TRUE;
722 }
723
724
725 /* Return the relocation value for @tpoff relocations.. */
726 static bfd_vma
727 tpoff (struct bfd_link_info *info, bfd_vma address)
728 {
729 /* If tls_sec is NULL, we should have signalled an error already. */
730 if (elf_hash_table (info)->tls_sec == NULL)
731 return 0;
732
733 /* The thread pointer on or1k stores the address after the TCB where
734 the data is, just compute the difference. No need to compensate
735 for the size of TCB. */
736 return (address - elf_hash_table (info)->tls_sec->vma);
737 }
738
739 /* Relocate an Or1k ELF section.
740
741 The RELOCATE_SECTION function is called by the new ELF backend linker
742 to handle the relocations for a section.
743
744 The relocs are always passed as Rela structures; if the section
745 actually uses Rel structures, the r_addend field will always be
746 zero.
747
748 This function is responsible for adjusting the section contents as
749 necessary, and (if using Rela relocs and generating a relocatable
750 output file) adjusting the reloc addend as necessary.
751
752 This function does not have to worry about setting the reloc
753 address or the reloc symbol index.
754
755 LOCAL_SYMS is a pointer to the swapped in local symbols.
756
757 LOCAL_SECTIONS is an array giving the section in the input file
758 corresponding to the st_shndx field of each local symbol.
759
760 The global hash table entry for the global symbols can be found
761 via elf_sym_hashes (input_bfd).
762
763 When generating relocatable output, this function must handle
764 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
765 going to be the section symbol corresponding to the output
766 section, which means that the addend must be adjusted
767 accordingly. */
768
769 static bfd_boolean
770 or1k_elf_relocate_section (bfd *output_bfd,
771 struct bfd_link_info *info,
772 bfd *input_bfd,
773 asection *input_section,
774 bfd_byte *contents,
775 Elf_Internal_Rela *relocs,
776 Elf_Internal_Sym *local_syms,
777 asection **local_sections)
778 {
779 Elf_Internal_Shdr *symtab_hdr;
780 struct elf_link_hash_entry **sym_hashes;
781 Elf_Internal_Rela *rel;
782 Elf_Internal_Rela *relend;
783 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
784 bfd *dynobj;
785 asection *sreloc;
786 bfd_vma *local_got_offsets;
787 asection *sgot;
788
789 if (htab == NULL)
790 return FALSE;
791
792 dynobj = htab->root.dynobj;
793 local_got_offsets = elf_local_got_offsets (input_bfd);
794
795 sreloc = elf_section_data (input_section)->sreloc;
796
797 sgot = htab->root.sgot;
798
799 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
800 sym_hashes = elf_sym_hashes (input_bfd);
801 relend = relocs + input_section->reloc_count;
802
803 for (rel = relocs; rel < relend; rel++)
804 {
805 reloc_howto_type *howto;
806 unsigned long r_symndx;
807 Elf_Internal_Sym *sym;
808 asection *sec;
809 struct elf_link_hash_entry *h;
810 bfd_vma relocation;
811 bfd_reloc_status_type r;
812 const char *name = NULL;
813 int r_type;
814
815 r_type = ELF32_R_TYPE (rel->r_info);
816 r_symndx = ELF32_R_SYM (rel->r_info);
817
818 if (r_type == R_OR1K_GNU_VTINHERIT
819 || r_type == R_OR1K_GNU_VTENTRY)
820 continue;
821
822 if (r_type < 0 || r_type >= (int) R_OR1K_max)
823 {
824 bfd_set_error (bfd_error_bad_value);
825 return FALSE;
826 }
827
828 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
829 h = NULL;
830 sym = NULL;
831 sec = NULL;
832
833 if (r_symndx < symtab_hdr->sh_info)
834 {
835 sym = local_syms + r_symndx;
836 sec = local_sections[r_symndx];
837 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
838
839 name = bfd_elf_string_from_elf_section
840 (input_bfd, symtab_hdr->sh_link, sym->st_name);
841 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
842 }
843 else
844 {
845 bfd_boolean unresolved_reloc, warned, ignored;
846
847 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
848 r_symndx, symtab_hdr, sym_hashes,
849 h, sec, relocation,
850 unresolved_reloc, warned, ignored);
851 }
852
853 if (sec != NULL && discarded_section (sec))
854 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
855 rel, 1, relend, howto, 0, contents);
856
857 if (bfd_link_relocatable (info))
858 continue;
859
860 switch (howto->type)
861 {
862 case R_OR1K_PLT26:
863 {
864 if (htab->root.splt != NULL && h != NULL
865 && h->plt.offset != (bfd_vma) -1)
866 {
867 relocation = (htab->root.splt->output_section->vma
868 + htab->root.splt->output_offset
869 + h->plt.offset);
870 }
871 break;
872 }
873
874 case R_OR1K_GOT16:
875 /* Relocation is to the entry for this symbol in the global
876 offset table. */
877 BFD_ASSERT (sgot != NULL);
878 if (h != NULL)
879 {
880 bfd_boolean dyn;
881 bfd_vma off;
882
883 off = h->got.offset;
884 BFD_ASSERT (off != (bfd_vma) -1);
885
886 dyn = htab->root.dynamic_sections_created;
887 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
888 bfd_link_pic (info),
889 h)
890 || (bfd_link_pic (info)
891 && SYMBOL_REFERENCES_LOCAL (info, h)))
892 {
893 /* This is actually a static link, or it is a
894 -Bsymbolic link and the symbol is defined
895 locally, or the symbol was forced to be local
896 because of a version file. We must initialize
897 this entry in the global offset table. Since the
898 offset must always be a multiple of 4, we use the
899 least significant bit to record whether we have
900 initialized it already.
901
902 When doing a dynamic link, we create a .rela.got
903 relocation entry to initialize the value. This
904 is done in the finish_dynamic_symbol routine. */
905 if ((off & 1) != 0)
906 off &= ~1;
907 else
908 {
909 /* Write entry in GOT. */
910 bfd_put_32 (output_bfd, relocation,
911 sgot->contents + off);
912 /* Mark GOT entry as having been written. */
913 h->got.offset |= 1;
914 }
915 }
916
917 relocation = sgot->output_offset + off;
918 }
919 else
920 {
921 bfd_vma off;
922 bfd_byte *loc;
923
924 BFD_ASSERT (local_got_offsets != NULL
925 && local_got_offsets[r_symndx] != (bfd_vma) -1);
926
927 /* Get offset into GOT table. */
928 off = local_got_offsets[r_symndx];
929
930 /* The offset must always be a multiple of 4. We use
931 the least significant bit to record whether we have
932 already processed this entry. */
933 if ((off & 1) != 0)
934 off &= ~1;
935 else
936 {
937 /* Write entry in GOT. */
938 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
939 if (bfd_link_pic (info))
940 {
941 asection *srelgot;
942 Elf_Internal_Rela outrel;
943
944 /* We need to generate a R_OR1K_RELATIVE reloc
945 for the dynamic linker. */
946 srelgot = htab->root.srelgot;
947 BFD_ASSERT (srelgot != NULL);
948
949 outrel.r_offset = (sgot->output_section->vma
950 + sgot->output_offset
951 + off);
952 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
953 outrel.r_addend = relocation;
954 loc = srelgot->contents;
955 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
956 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
957 ++srelgot->reloc_count;
958 }
959
960 local_got_offsets[r_symndx] |= 1;
961 }
962 relocation = sgot->output_offset + off;
963 }
964
965 /* Addend should be zero. */
966 if (rel->r_addend != 0)
967 _bfd_error_handler
968 (_("internal error: addend should be zero for %s"),
969 "R_OR1K_GOT16");
970
971 break;
972
973 case R_OR1K_GOTOFF_LO16:
974 case R_OR1K_GOTOFF_HI16:
975 /* Relocation is offset from GOT. */
976 BFD_ASSERT (sgot != NULL);
977 relocation
978 -= (htab->root.hgot->root.u.def.value
979 + htab->root.hgot->root.u.def.section->output_offset
980 + htab->root.hgot->root.u.def.section->output_section->vma);
981 break;
982
983 case R_OR1K_INSN_REL_26:
984 case R_OR1K_HI_16_IN_INSN:
985 case R_OR1K_LO_16_IN_INSN:
986 case R_OR1K_32:
987 /* R_OR1K_16? */
988 {
989 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
990 from removed linkonce sections, or sections discarded by
991 a linker script. */
992 if (r_symndx == STN_UNDEF
993 || (input_section->flags & SEC_ALLOC) == 0)
994 break;
995
996 if ((bfd_link_pic (info)
997 && (h == NULL
998 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
999 || h->root.type != bfd_link_hash_undefweak)
1000 && (howto->type != R_OR1K_INSN_REL_26
1001 || !SYMBOL_CALLS_LOCAL (info, h)))
1002 || (!bfd_link_pic (info)
1003 && h != NULL
1004 && h->dynindx != -1
1005 && !h->non_got_ref
1006 && ((h->def_dynamic
1007 && !h->def_regular)
1008 || h->root.type == bfd_link_hash_undefweak
1009 || h->root.type == bfd_link_hash_undefined)))
1010 {
1011 Elf_Internal_Rela outrel;
1012 bfd_byte *loc;
1013 bfd_boolean skip;
1014
1015 /* When generating a shared object, these relocations
1016 are copied into the output file to be resolved at run
1017 time. */
1018
1019 BFD_ASSERT (sreloc != NULL);
1020
1021 skip = FALSE;
1022
1023 outrel.r_offset =
1024 _bfd_elf_section_offset (output_bfd, info, input_section,
1025 rel->r_offset);
1026 if (outrel.r_offset == (bfd_vma) -1)
1027 skip = TRUE;
1028 else if (outrel.r_offset == (bfd_vma) -2)
1029 skip = TRUE;
1030 outrel.r_offset += (input_section->output_section->vma
1031 + input_section->output_offset);
1032
1033 if (skip)
1034 memset (&outrel, 0, sizeof outrel);
1035 /* h->dynindx may be -1 if the symbol was marked to
1036 become local. */
1037 else if (h != NULL
1038 && ((! info->symbolic && h->dynindx != -1)
1039 || !h->def_regular))
1040 {
1041 BFD_ASSERT (h->dynindx != -1);
1042 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1043 outrel.r_addend = rel->r_addend;
1044 }
1045 else
1046 {
1047 if (r_type == R_OR1K_32)
1048 {
1049 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1050 outrel.r_addend = relocation + rel->r_addend;
1051 }
1052 else
1053 {
1054 BFD_FAIL ();
1055 _bfd_error_handler
1056 (_("%pB: probably compiled without -fPIC?"),
1057 input_bfd);
1058 bfd_set_error (bfd_error_bad_value);
1059 return FALSE;
1060 }
1061 }
1062
1063 loc = sreloc->contents;
1064 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1065 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1066 break;
1067 }
1068 break;
1069 }
1070
1071 case R_OR1K_TLS_LDM_HI16:
1072 case R_OR1K_TLS_LDM_LO16:
1073 case R_OR1K_TLS_LDO_HI16:
1074 case R_OR1K_TLS_LDO_LO16:
1075 /* TODO: implement support for local dynamic. */
1076 BFD_FAIL ();
1077 _bfd_error_handler
1078 (_("%pB: support for local dynamic not implemented"),
1079 input_bfd);
1080 bfd_set_error (bfd_error_bad_value);
1081 return FALSE;
1082
1083
1084 case R_OR1K_TLS_GD_HI16:
1085 case R_OR1K_TLS_GD_LO16:
1086 case R_OR1K_TLS_IE_HI16:
1087 case R_OR1K_TLS_IE_LO16:
1088 {
1089 bfd_vma gotoff;
1090 Elf_Internal_Rela rela;
1091 bfd_byte *loc;
1092 int dynamic;
1093
1094 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1095
1096 /* Mark as TLS related GOT entry by setting
1097 bit 2 as well as bit 1. */
1098 if (h != NULL)
1099 {
1100 gotoff = h->got.offset;
1101 h->got.offset |= 3;
1102 }
1103 else
1104 {
1105 gotoff = local_got_offsets[r_symndx];
1106 local_got_offsets[r_symndx] |= 3;
1107 }
1108
1109 /* Only process the relocation once. */
1110 if (gotoff & 1)
1111 {
1112 relocation = sgot->output_offset + (gotoff & ~3);
1113 break;
1114 }
1115
1116 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1117 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1118
1119 /* Dynamic entries will require relocations. if we do not need
1120 them we will just use the default R_OR1K_NONE and
1121 not set anything. */
1122 dynamic = bfd_link_pic (info)
1123 || (sec && (sec->flags & SEC_ALLOC) != 0
1124 && h != NULL
1125 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1126
1127 /* Shared GD. */
1128 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
1129 || howto->type == R_OR1K_TLS_GD_LO16))
1130 {
1131 int i;
1132
1133 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1134 for (i = 0; i < 2; ++i)
1135 {
1136 rela.r_offset = sgot->output_section->vma +
1137 sgot->output_offset + gotoff + i*4;
1138 if (h != NULL && h->dynindx != -1)
1139 {
1140 rela.r_info = ELF32_R_INFO (h->dynindx,
1141 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1142 rela.r_addend = 0;
1143 }
1144 else
1145 {
1146 rela.r_info = ELF32_R_INFO (0,
1147 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1148 rela.r_addend = tpoff (info, relocation);
1149 }
1150
1151 loc = sreloc->contents;
1152 loc += sreloc->reloc_count++ *
1153 sizeof (Elf32_External_Rela);
1154
1155 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1156 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1157 }
1158 }
1159 /* Static GD. */
1160 else if (howto->type == R_OR1K_TLS_GD_HI16
1161 || howto->type == R_OR1K_TLS_GD_LO16)
1162 {
1163 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1164 bfd_put_32 (output_bfd, tpoff (info, relocation),
1165 sgot->contents + gotoff + 4);
1166 }
1167 /* Shared IE. */
1168 else if (dynamic)
1169 {
1170 /* Add TPOFF GOT and rela entries. */
1171 rela.r_offset = sgot->output_section->vma +
1172 sgot->output_offset + gotoff;
1173 if (h != NULL && h->dynindx != -1)
1174 {
1175 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1176 rela.r_addend = 0;
1177 }
1178 else
1179 {
1180 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1181 rela.r_addend = tpoff (info, relocation);
1182 }
1183
1184 loc = sreloc->contents;
1185 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1186
1187 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1188 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1189 }
1190 /* Static IE. */
1191 else
1192 {
1193 bfd_put_32 (output_bfd, tpoff (info, relocation),
1194 sgot->contents + gotoff);
1195 }
1196 relocation = sgot->output_offset + gotoff;
1197 break;
1198 }
1199 case R_OR1K_TLS_LE_HI16:
1200 case R_OR1K_TLS_LE_LO16:
1201
1202 /* Relocation is offset from TP. */
1203 relocation = tpoff (info, relocation);
1204 break;
1205
1206 case R_OR1K_TLS_DTPMOD:
1207 case R_OR1K_TLS_DTPOFF:
1208 case R_OR1K_TLS_TPOFF:
1209 /* These are resolved dynamically on load and shouldn't
1210 be used as linker input. */
1211 BFD_FAIL ();
1212 _bfd_error_handler
1213 (_("%pB: will not resolve runtime TLS relocation"),
1214 input_bfd);
1215 bfd_set_error (bfd_error_bad_value);
1216 return FALSE;
1217
1218 default:
1219 break;
1220 }
1221 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1222 rel->r_offset, relocation, rel->r_addend);
1223
1224 if (r != bfd_reloc_ok)
1225 {
1226 const char *msg = NULL;
1227
1228 switch (r)
1229 {
1230 case bfd_reloc_overflow:
1231 (*info->callbacks->reloc_overflow)
1232 (info, (h ? &h->root : NULL), name, howto->name,
1233 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1234 break;
1235
1236 case bfd_reloc_undefined:
1237 (*info->callbacks->undefined_symbol)
1238 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1239 break;
1240
1241 case bfd_reloc_outofrange:
1242 msg = _("internal error: out of range error");
1243 break;
1244
1245 case bfd_reloc_notsupported:
1246 msg = _("internal error: unsupported relocation error");
1247 break;
1248
1249 case bfd_reloc_dangerous:
1250 msg = _("internal error: dangerous relocation");
1251 break;
1252
1253 default:
1254 msg = _("internal error: unknown error");
1255 break;
1256 }
1257
1258 if (msg)
1259 (*info->callbacks->warning) (info, msg, name, input_bfd,
1260 input_section, rel->r_offset);
1261 }
1262 }
1263
1264 return TRUE;
1265 }
1266
1267 /* Return the section that should be marked against GC for a given
1268 relocation. */
1269
1270 static asection *
1271 or1k_elf_gc_mark_hook (asection *sec,
1272 struct bfd_link_info *info,
1273 Elf_Internal_Rela *rel,
1274 struct elf_link_hash_entry *h,
1275 Elf_Internal_Sym *sym)
1276 {
1277 if (h != NULL)
1278 switch (ELF32_R_TYPE (rel->r_info))
1279 {
1280 case R_OR1K_GNU_VTINHERIT:
1281 case R_OR1K_GNU_VTENTRY:
1282 return NULL;
1283 }
1284
1285 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1286 }
1287
1288 /* Look through the relocs for a section during the first phase. */
1289
1290 static bfd_boolean
1291 or1k_elf_check_relocs (bfd *abfd,
1292 struct bfd_link_info *info,
1293 asection *sec,
1294 const Elf_Internal_Rela *relocs)
1295 {
1296 Elf_Internal_Shdr *symtab_hdr;
1297 struct elf_link_hash_entry **sym_hashes;
1298 const Elf_Internal_Rela *rel;
1299
1300 const Elf_Internal_Rela *rel_end;
1301 struct elf_or1k_link_hash_table *htab;
1302 bfd *dynobj;
1303 asection *sreloc = NULL;
1304
1305 if (bfd_link_relocatable (info))
1306 return TRUE;
1307
1308 /* Don't do anything special with non-loaded, non-alloced sections.
1309 In particular, any relocs in such sections should not affect GOT
1310 and PLT reference counting (ie. we don't allow them to create GOT
1311 or PLT entries), there's no possibility or desire to optimize TLS
1312 relocs, and there's not much point in propagating relocs to shared
1313 libs that the dynamic linker won't relocate. */
1314 if ((sec->flags & SEC_ALLOC) == 0)
1315 return TRUE;
1316
1317 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1318 sym_hashes = elf_sym_hashes (abfd);
1319
1320 htab = or1k_elf_hash_table (info);
1321 if (htab == NULL)
1322 return FALSE;
1323
1324 dynobj = htab->root.dynobj;
1325
1326 rel_end = relocs + sec->reloc_count;
1327 for (rel = relocs; rel < rel_end; rel++)
1328 {
1329 struct elf_link_hash_entry *h;
1330 unsigned long r_symndx;
1331 unsigned char tls_type;
1332
1333 r_symndx = ELF32_R_SYM (rel->r_info);
1334 if (r_symndx < symtab_hdr->sh_info)
1335 h = NULL;
1336 else
1337 {
1338 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1339 while (h->root.type == bfd_link_hash_indirect
1340 || h->root.type == bfd_link_hash_warning)
1341 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1342 }
1343
1344 switch (ELF32_R_TYPE (rel->r_info))
1345 {
1346 case R_OR1K_TLS_GD_HI16:
1347 case R_OR1K_TLS_GD_LO16:
1348 tls_type = TLS_GD;
1349 break;
1350 case R_OR1K_TLS_LDM_HI16:
1351 case R_OR1K_TLS_LDM_LO16:
1352 case R_OR1K_TLS_LDO_HI16:
1353 case R_OR1K_TLS_LDO_LO16:
1354 tls_type = TLS_LD;
1355 break;
1356 case R_OR1K_TLS_IE_HI16:
1357 case R_OR1K_TLS_IE_LO16:
1358 tls_type = TLS_IE;
1359 break;
1360 case R_OR1K_TLS_LE_HI16:
1361 case R_OR1K_TLS_LE_LO16:
1362 tls_type = TLS_LE;
1363 break;
1364 default:
1365 tls_type = TLS_NONE;
1366 }
1367
1368 /* Record TLS type. */
1369 if (h != NULL)
1370 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
1371 else
1372 {
1373 unsigned char *local_tls_type;
1374
1375 /* This is a TLS type record for a local symbol. */
1376 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1377 if (local_tls_type == NULL)
1378 {
1379 bfd_size_type size;
1380
1381 size = symtab_hdr->sh_info;
1382 local_tls_type = bfd_zalloc (abfd, size);
1383 if (local_tls_type == NULL)
1384 return FALSE;
1385 elf_or1k_local_tls_type (abfd) = local_tls_type;
1386 }
1387 local_tls_type[r_symndx] = tls_type;
1388 }
1389
1390 switch (ELF32_R_TYPE (rel->r_info))
1391 {
1392 /* This relocation describes the C++ object vtable hierarchy.
1393 Reconstruct it for later use during GC. */
1394 case R_OR1K_GNU_VTINHERIT:
1395 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1396 return FALSE;
1397 break;
1398
1399 /* This relocation describes which C++ vtable entries are actually
1400 used. Record for later use during GC. */
1401 case R_OR1K_GNU_VTENTRY:
1402 BFD_ASSERT (h != NULL);
1403 if (h != NULL
1404 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1405 return FALSE;
1406 break;
1407
1408 /* This relocation requires .plt entry. */
1409 case R_OR1K_PLT26:
1410 if (h != NULL)
1411 {
1412 h->needs_plt = 1;
1413 h->plt.refcount += 1;
1414 }
1415 break;
1416
1417 case R_OR1K_GOT16:
1418 case R_OR1K_GOTOFF_HI16:
1419 case R_OR1K_GOTOFF_LO16:
1420 case R_OR1K_TLS_GD_HI16:
1421 case R_OR1K_TLS_GD_LO16:
1422 case R_OR1K_TLS_IE_HI16:
1423 case R_OR1K_TLS_IE_LO16:
1424 if (htab->root.sgot == NULL)
1425 {
1426 if (dynobj == NULL)
1427 htab->root.dynobj = dynobj = abfd;
1428 if (!_bfd_elf_create_got_section (dynobj, info))
1429 return FALSE;
1430 }
1431
1432 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1433 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1434 {
1435 if (h != NULL)
1436 h->got.refcount += 1;
1437 else
1438 {
1439 bfd_signed_vma *local_got_refcounts;
1440
1441 /* This is a global offset table entry for a local symbol. */
1442 local_got_refcounts = elf_local_got_refcounts (abfd);
1443 if (local_got_refcounts == NULL)
1444 {
1445 bfd_size_type size;
1446
1447 size = symtab_hdr->sh_info;
1448 size *= sizeof (bfd_signed_vma);
1449 local_got_refcounts = bfd_zalloc (abfd, size);
1450 if (local_got_refcounts == NULL)
1451 return FALSE;
1452 elf_local_got_refcounts (abfd) = local_got_refcounts;
1453 }
1454 local_got_refcounts[r_symndx] += 1;
1455 }
1456 }
1457 break;
1458
1459 case R_OR1K_INSN_REL_26:
1460 case R_OR1K_HI_16_IN_INSN:
1461 case R_OR1K_LO_16_IN_INSN:
1462 case R_OR1K_32:
1463 /* R_OR1K_16? */
1464 {
1465 if (h != NULL && !bfd_link_pic (info))
1466 {
1467 /* We may need a copy reloc. */
1468 h->non_got_ref = 1;
1469
1470 /* We may also need a .plt entry. */
1471 h->plt.refcount += 1;
1472 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1473 h->pointer_equality_needed = 1;
1474 }
1475
1476 /* If we are creating a shared library, and this is a reloc
1477 against a global symbol, or a non PC relative reloc
1478 against a local symbol, then we need to copy the reloc
1479 into the shared library. However, if we are linking with
1480 -Bsymbolic, we do not need to copy a reloc against a
1481 global symbol which is defined in an object we are
1482 including in the link (i.e., DEF_REGULAR is set). At
1483 this point we have not seen all the input files, so it is
1484 possible that DEF_REGULAR is not set now but will be set
1485 later (it is never cleared). In case of a weak definition,
1486 DEF_REGULAR may be cleared later by a strong definition in
1487 a shared library. We account for that possibility below by
1488 storing information in the relocs_copied field of the hash
1489 table entry. A similar situation occurs when creating
1490 shared libraries and symbol visibility changes render the
1491 symbol local.
1492
1493 If on the other hand, we are creating an executable, we
1494 may need to keep relocations for symbols satisfied by a
1495 dynamic library if we manage to avoid copy relocs for the
1496 symbol. */
1497
1498 if ((bfd_link_pic (info)
1499 && (sec->flags & SEC_ALLOC) != 0
1500 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1501 || (h != NULL
1502 && (!SYMBOLIC_BIND (info, h)
1503 || h->root.type == bfd_link_hash_defweak
1504 || !h->def_regular))))
1505 || (!bfd_link_pic (info)
1506 && (sec->flags & SEC_ALLOC) != 0
1507 && h != NULL
1508 && (h->root.type == bfd_link_hash_defweak
1509 || !h->def_regular)))
1510 {
1511 struct elf_dyn_relocs *p;
1512 struct elf_dyn_relocs **head;
1513
1514 /* When creating a shared object, we must copy these
1515 relocs into the output file. We create a reloc
1516 section in dynobj and make room for the reloc. */
1517 if (sreloc == NULL)
1518 {
1519 const char *name;
1520 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1521 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1522
1523 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1524 if (name == NULL)
1525 return FALSE;
1526
1527 if (strncmp (name, ".rela", 5) != 0
1528 || strcmp (bfd_get_section_name (abfd, sec),
1529 name + 5) != 0)
1530 {
1531 _bfd_error_handler
1532 /* xgettext:c-format */
1533 (_("%pB: bad relocation section name `%s\'"),
1534 abfd, name);
1535 }
1536
1537 if (htab->root.dynobj == NULL)
1538 htab->root.dynobj = abfd;
1539 dynobj = htab->root.dynobj;
1540
1541 sreloc = bfd_get_section_by_name (dynobj, name);
1542 if (sreloc == NULL)
1543 {
1544 sreloc = _bfd_elf_make_dynamic_reloc_section
1545 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1546
1547 if (sreloc == NULL)
1548 return FALSE;
1549 }
1550 elf_section_data (sec)->sreloc = sreloc;
1551 }
1552
1553 /* If this is a global symbol, we count the number of
1554 relocations we need for this symbol. */
1555 if (h != NULL)
1556 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1557 else
1558 {
1559 /* Track dynamic relocs needed for local syms too.
1560 We really need local syms available to do this
1561 easily. Oh well. */
1562
1563 asection *s;
1564 Elf_Internal_Sym *isym;
1565 void *vpp;
1566
1567 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1568 abfd, r_symndx);
1569 if (isym == NULL)
1570 return FALSE;
1571
1572 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1573 if (s == NULL)
1574 return FALSE;
1575
1576 vpp = &elf_section_data (s)->local_dynrel;
1577 head = (struct elf_dyn_relocs **) vpp;
1578 }
1579
1580 p = *head;
1581 if (p == NULL || p->sec != sec)
1582 {
1583 bfd_size_type amt = sizeof *p;
1584 p = ((struct elf_dyn_relocs *)
1585 bfd_alloc (htab->root.dynobj, amt));
1586 if (p == NULL)
1587 return FALSE;
1588 p->next = *head;
1589 *head = p;
1590 p->sec = sec;
1591 p->count = 0;
1592 p->pc_count = 0;
1593 }
1594
1595 p->count += 1;
1596 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1597 p->pc_count += 1;
1598 }
1599 }
1600 break;
1601 }
1602 }
1603
1604 return TRUE;
1605 }
1606
1607 /* Finish up the dynamic sections. */
1608
1609 static bfd_boolean
1610 or1k_elf_finish_dynamic_sections (bfd *output_bfd,
1611 struct bfd_link_info *info)
1612 {
1613 bfd *dynobj;
1614 asection *sdyn, *sgot;
1615 struct elf_or1k_link_hash_table *htab;
1616
1617 htab = or1k_elf_hash_table (info);
1618 if (htab == NULL)
1619 return FALSE;
1620
1621 dynobj = htab->root.dynobj;
1622
1623 sgot = htab->root.sgotplt;
1624 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1625
1626 if (htab->root.dynamic_sections_created)
1627 {
1628 asection *splt;
1629 Elf32_External_Dyn *dyncon, *dynconend;
1630
1631 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1632
1633 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1634 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1635
1636 for (; dyncon < dynconend; dyncon++)
1637 {
1638 Elf_Internal_Dyn dyn;
1639 asection *s;
1640
1641 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1642
1643 switch (dyn.d_tag)
1644 {
1645 default:
1646 continue;
1647
1648 case DT_PLTGOT:
1649 s = htab->root.sgotplt;
1650 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1651 break;
1652
1653 case DT_JMPREL:
1654 s = htab->root.srelplt;
1655 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1656 break;
1657
1658 case DT_PLTRELSZ:
1659 s = htab->root.srelplt;
1660 dyn.d_un.d_val = s->size;
1661 break;
1662 }
1663 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1664 }
1665
1666
1667 /* Fill in the first entry in the procedure linkage table. */
1668 splt = htab->root.splt;
1669 if (splt && splt->size > 0)
1670 {
1671 if (bfd_link_pic (info))
1672 {
1673 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1674 splt->contents);
1675 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1676 splt->contents + 4);
1677 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1678 splt->contents + 8);
1679 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1680 splt->contents + 12);
1681 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1682 splt->contents + 16);
1683 }
1684 else
1685 {
1686 unsigned long addr;
1687 /* addr = .got + 4 */
1688 addr = sgot->output_section->vma + sgot->output_offset + 4;
1689 bfd_put_32 (output_bfd,
1690 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1691 splt->contents);
1692 bfd_put_32 (output_bfd,
1693 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1694 splt->contents + 4);
1695 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1696 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1697 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1698 }
1699
1700 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1701 }
1702 }
1703
1704 /* Set the first entry in the global offset table to the address of
1705 the dynamic section. */
1706 if (sgot && sgot->size > 0)
1707 {
1708 if (sdyn == NULL)
1709 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1710 else
1711 bfd_put_32 (output_bfd,
1712 sdyn->output_section->vma + sdyn->output_offset,
1713 sgot->contents);
1714 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1715 }
1716
1717 if (htab->root.sgot && htab->root.sgot->size > 0)
1718 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
1719
1720 return TRUE;
1721 }
1722
1723 /* Finish up dynamic symbol handling. We set the contents of various
1724 dynamic sections here. */
1725
1726 static bfd_boolean
1727 or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
1728 struct bfd_link_info *info,
1729 struct elf_link_hash_entry *h,
1730 Elf_Internal_Sym *sym)
1731 {
1732 struct elf_or1k_link_hash_table *htab;
1733 bfd_byte *loc;
1734
1735 htab = or1k_elf_hash_table (info);
1736 if (htab == NULL)
1737 return FALSE;
1738
1739 if (h->plt.offset != (bfd_vma) -1)
1740 {
1741 asection *splt;
1742 asection *sgot;
1743 asection *srela;
1744
1745 bfd_vma plt_index;
1746 bfd_vma got_offset;
1747 bfd_vma got_addr;
1748 Elf_Internal_Rela rela;
1749
1750 /* This symbol has an entry in the procedure linkage table. Set
1751 it up. */
1752 BFD_ASSERT (h->dynindx != -1);
1753
1754 splt = htab->root.splt;
1755 sgot = htab->root.sgotplt;
1756 srela = htab->root.srelplt;
1757 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1758
1759 /* Get the index in the procedure linkage table which
1760 corresponds to this symbol. This is the index of this symbol
1761 in all the symbols for which we are making plt entries. The
1762 first entry in the procedure linkage table is reserved. */
1763 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1764
1765 /* Get the offset into the .got table of the entry that
1766 corresponds to this function. Each .got entry is 4 bytes.
1767 The first three are reserved. */
1768 got_offset = (plt_index + 3) * 4;
1769 got_addr = got_offset;
1770
1771 /* Fill in the entry in the procedure linkage table. */
1772 if (! bfd_link_pic (info))
1773 {
1774 got_addr += htab->root.sgotplt->output_section->vma
1775 + htab->root.sgotplt->output_offset;
1776 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1777 splt->contents + h->plt.offset);
1778 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1779 splt->contents + h->plt.offset + 4);
1780 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1781 splt->contents + h->plt.offset + 8);
1782 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1783 splt->contents + h->plt.offset + 12);
1784 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1785 | plt_index * sizeof (Elf32_External_Rela),
1786 splt->contents + h->plt.offset + 16);
1787 }
1788 else
1789 {
1790 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1791 splt->contents + h->plt.offset);
1792 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1793 | plt_index * sizeof (Elf32_External_Rela),
1794 splt->contents + h->plt.offset + 4);
1795 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1796 splt->contents + h->plt.offset + 8);
1797 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1798 splt->contents + h->plt.offset + 12);
1799 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1800 splt->contents + h->plt.offset + 16);
1801 }
1802
1803 /* Fill in the entry in the global offset table. */
1804 bfd_put_32 (output_bfd,
1805 (splt->output_section->vma
1806 + splt->output_offset), /* Same offset. */
1807 sgot->contents + got_offset);
1808
1809 /* Fill in the entry in the .rela.plt section. */
1810 rela.r_offset = (sgot->output_section->vma
1811 + sgot->output_offset
1812 + got_offset);
1813 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1814 rela.r_addend = 0;
1815 loc = srela->contents;
1816 loc += plt_index * sizeof (Elf32_External_Rela);
1817 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1818
1819 if (!h->def_regular)
1820 {
1821 /* Mark the symbol as undefined, rather than as defined in
1822 the .plt section. Leave the value alone. */
1823 sym->st_shndx = SHN_UNDEF;
1824 }
1825
1826 }
1827
1828 if (h->got.offset != (bfd_vma) -1
1829 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1830 {
1831 asection *sgot;
1832 asection *srela;
1833 Elf_Internal_Rela rela;
1834
1835 /* This symbol has an entry in the global offset table. Set it
1836 up. */
1837 sgot = htab->root.sgot;
1838 srela = htab->root.srelgot;
1839 BFD_ASSERT (sgot != NULL && srela != NULL);
1840
1841 rela.r_offset = (sgot->output_section->vma
1842 + sgot->output_offset
1843 + (h->got.offset &~ 1));
1844
1845 /* If this is a -Bsymbolic link, and the symbol is defined
1846 locally, we just want to emit a RELATIVE reloc. Likewise if
1847 the symbol was forced to be local because of a version file.
1848 The entry in the global offset table will already have been
1849 initialized in the relocate_section function. */
1850 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
1851 {
1852 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1853 rela.r_addend = (h->root.u.def.value
1854 + h->root.u.def.section->output_section->vma
1855 + h->root.u.def.section->output_offset);
1856 }
1857 else
1858 {
1859 BFD_ASSERT ((h->got.offset & 1) == 0);
1860 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1861 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1862 rela.r_addend = 0;
1863 }
1864
1865 loc = srela->contents;
1866 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1867 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1868 ++srela->reloc_count;
1869 }
1870
1871 if (h->needs_copy)
1872 {
1873 asection *s;
1874 Elf_Internal_Rela rela;
1875
1876 /* This symbols needs a copy reloc. Set it up. */
1877 BFD_ASSERT (h->dynindx != -1
1878 && (h->root.type == bfd_link_hash_defined
1879 || h->root.type == bfd_link_hash_defweak));
1880
1881 rela.r_offset = (h->root.u.def.value
1882 + h->root.u.def.section->output_section->vma
1883 + h->root.u.def.section->output_offset);
1884 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
1885 rela.r_addend = 0;
1886 if (h->root.u.def.section == htab->root.sdynrelro)
1887 s = htab->root.sreldynrelro;
1888 else
1889 s = htab->root.srelbss;
1890 loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
1891 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1892 ++s->reloc_count;
1893 }
1894
1895 /* Mark some specially defined symbols as absolute. */
1896 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1897 || h == htab->root.hgot)
1898 sym->st_shndx = SHN_ABS;
1899
1900 return TRUE;
1901 }
1902
1903 static enum elf_reloc_type_class
1904 or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1905 const asection *rel_sec ATTRIBUTE_UNUSED,
1906 const Elf_Internal_Rela *rela)
1907 {
1908 switch ((int) ELF32_R_TYPE (rela->r_info))
1909 {
1910 case R_OR1K_RELATIVE: return reloc_class_relative;
1911 case R_OR1K_JMP_SLOT: return reloc_class_plt;
1912 case R_OR1K_COPY: return reloc_class_copy;
1913 default: return reloc_class_normal;
1914 }
1915 }
1916
1917 /* Find dynamic relocs for H that apply to read-only sections. */
1918
1919 static asection *
1920 readonly_dynrelocs (struct elf_link_hash_entry *h)
1921 {
1922 struct elf_dyn_relocs *p;
1923 struct elf_or1k_link_hash_entry *eh = (struct elf_or1k_link_hash_entry *) h;
1924
1925 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1926 {
1927 asection *s = p->sec->output_section;
1928
1929 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1930 return p->sec;
1931 }
1932 return NULL;
1933 }
1934
1935 /* Adjust a symbol defined by a dynamic object and referenced by a
1936 regular object. The current definition is in some section of the
1937 dynamic object, but we're not including those sections. We have to
1938 change the definition to something the rest of the link can
1939 understand. */
1940
1941 static bfd_boolean
1942 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1943 struct elf_link_hash_entry *h)
1944 {
1945 struct elf_or1k_link_hash_table *htab;
1946 bfd *dynobj;
1947 asection *s, *srel;
1948
1949 dynobj = elf_hash_table (info)->dynobj;
1950
1951 /* Make sure we know what is going on here. */
1952 BFD_ASSERT (dynobj != NULL
1953 && (h->needs_plt
1954 || h->is_weakalias
1955 || (h->def_dynamic
1956 && h->ref_regular
1957 && !h->def_regular)));
1958
1959 /* If this is a function, put it in the procedure linkage table. We
1960 will fill in the contents of the procedure linkage table later,
1961 when we know the address of the .got section. */
1962 if (h->type == STT_FUNC
1963 || h->needs_plt)
1964 {
1965 if (! bfd_link_pic (info)
1966 && !h->def_dynamic
1967 && !h->ref_dynamic
1968 && h->root.type != bfd_link_hash_undefweak
1969 && h->root.type != bfd_link_hash_undefined)
1970 {
1971 /* This case can occur if we saw a PLT reloc in an input
1972 file, but the symbol was never referred to by a dynamic
1973 object. In such a case, we don't actually need to build
1974 a procedure linkage table, and we can just do a PCREL
1975 reloc instead. */
1976 h->plt.offset = (bfd_vma) -1;
1977 h->needs_plt = 0;
1978 }
1979
1980 return TRUE;
1981 }
1982 else
1983 h->plt.offset = (bfd_vma) -1;
1984
1985 /* If this is a weak symbol, and there is a real definition, the
1986 processor independent code will have arranged for us to see the
1987 real definition first, and we can just use the same value. */
1988 if (h->is_weakalias)
1989 {
1990 struct elf_link_hash_entry *def = weakdef (h);
1991 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1992 h->root.u.def.section = def->root.u.def.section;
1993 h->root.u.def.value = def->root.u.def.value;
1994 return TRUE;
1995 }
1996
1997 /* This is a reference to a symbol defined by a dynamic object which
1998 is not a function. */
1999
2000 /* If we are creating a shared library, we must presume that the
2001 only references to the symbol are via the global offset table.
2002 For such cases we need not do anything here; the relocations will
2003 be handled correctly by relocate_section. */
2004 if (bfd_link_pic (info))
2005 return TRUE;
2006
2007 /* If there are no references to this symbol that do not use the
2008 GOT, we don't need to generate a copy reloc. */
2009 if (!h->non_got_ref)
2010 return TRUE;
2011
2012 /* If -z nocopyreloc was given, we won't generate them either. */
2013 if (info->nocopyreloc)
2014 {
2015 h->non_got_ref = 0;
2016 return TRUE;
2017 }
2018
2019 /* If we don't find any dynamic relocs in read-only sections, then
2020 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2021 if (!readonly_dynrelocs (h))
2022 {
2023 h->non_got_ref = 0;
2024 return TRUE;
2025 }
2026
2027 /* We must allocate the symbol in our .dynbss section, which will
2028 become part of the .bss section of the executable. There will be
2029 an entry for this symbol in the .dynsym section. The dynamic
2030 object will contain position independent code, so all references
2031 from the dynamic object to this symbol will go through the global
2032 offset table. The dynamic linker will use the .dynsym entry to
2033 determine the address it must put in the global offset table, so
2034 both the dynamic object and the regular object will refer to the
2035 same memory location for the variable. */
2036
2037 htab = or1k_elf_hash_table (info);
2038 if (htab == NULL)
2039 return FALSE;
2040
2041 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2042 to copy the initial value out of the dynamic object and into the
2043 runtime process image. We need to remember the offset into the
2044 .rela.bss section we are going to use. */
2045 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2046 {
2047 s = htab->root.sdynrelro;
2048 srel = htab->root.sreldynrelro;
2049 }
2050 else
2051 {
2052 s = htab->root.sdynbss;
2053 srel = htab->root.srelbss;
2054 }
2055 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2056 {
2057 srel->size += sizeof (Elf32_External_Rela);
2058 h->needs_copy = 1;
2059 }
2060
2061 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2062 }
2063
2064 /* Allocate space in .plt, .got and associated reloc sections for
2065 dynamic relocs. */
2066
2067 static bfd_boolean
2068 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2069 {
2070 struct bfd_link_info *info;
2071 struct elf_or1k_link_hash_table *htab;
2072 struct elf_or1k_link_hash_entry *eh;
2073 struct elf_dyn_relocs *p;
2074
2075 if (h->root.type == bfd_link_hash_indirect)
2076 return TRUE;
2077
2078 info = (struct bfd_link_info *) inf;
2079 htab = or1k_elf_hash_table (info);
2080 if (htab == NULL)
2081 return FALSE;
2082
2083 eh = (struct elf_or1k_link_hash_entry *) h;
2084
2085 if (htab->root.dynamic_sections_created
2086 && h->plt.refcount > 0)
2087 {
2088 /* Make sure this symbol is output as a dynamic symbol.
2089 Undefined weak syms won't yet be marked as dynamic. */
2090 if (h->dynindx == -1
2091 && !h->forced_local)
2092 {
2093 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2094 return FALSE;
2095 }
2096
2097 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2098 {
2099 asection *s = htab->root.splt;
2100
2101 /* If this is the first .plt entry, make room for the special
2102 first entry. */
2103 if (s->size == 0)
2104 s->size = PLT_ENTRY_SIZE;
2105
2106 h->plt.offset = s->size;
2107
2108 /* If this symbol is not defined in a regular file, and we are
2109 not generating a shared library, then set the symbol to this
2110 location in the .plt. This is required to make function
2111 pointers compare as equal between the normal executable and
2112 the shared library. */
2113 if (! bfd_link_pic (info)
2114 && !h->def_regular)
2115 {
2116 h->root.u.def.section = s;
2117 h->root.u.def.value = h->plt.offset;
2118 }
2119
2120 /* Make room for this entry. */
2121 s->size += PLT_ENTRY_SIZE;
2122
2123 /* We also need to make an entry in the .got.plt section, which
2124 will be placed in the .got section by the linker script. */
2125 htab->root.sgotplt->size += 4;
2126
2127 /* We also need to make an entry in the .rel.plt section. */
2128 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2129 }
2130 else
2131 {
2132 h->plt.offset = (bfd_vma) -1;
2133 h->needs_plt = 0;
2134 }
2135 }
2136 else
2137 {
2138 h->plt.offset = (bfd_vma) -1;
2139 h->needs_plt = 0;
2140 }
2141
2142 if (h->got.refcount > 0)
2143 {
2144 asection *s;
2145 bfd_boolean dyn;
2146 unsigned char tls_type;
2147
2148 /* Make sure this symbol is output as a dynamic symbol.
2149 Undefined weak syms won't yet be marked as dynamic. */
2150 if (h->dynindx == -1
2151 && !h->forced_local)
2152 {
2153 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2154 return FALSE;
2155 }
2156
2157 s = htab->root.sgot;
2158
2159 h->got.offset = s->size;
2160
2161 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2162
2163 /* TLS GD requires two GOT and two relocs. */
2164 if (tls_type == TLS_GD)
2165 s->size += 8;
2166 else
2167 s->size += 4;
2168 dyn = htab->root.dynamic_sections_created;
2169 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2170 {
2171 if (tls_type == TLS_GD)
2172 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2173 else
2174 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2175 }
2176 }
2177 else
2178 h->got.offset = (bfd_vma) -1;
2179
2180 if (eh->dyn_relocs == NULL)
2181 return TRUE;
2182
2183 /* In the shared -Bsymbolic case, discard space allocated for
2184 dynamic pc-relative relocs against symbols which turn out to be
2185 defined in regular objects. For the normal shared case, discard
2186 space for pc-relative relocs that have become local due to symbol
2187 visibility changes. */
2188
2189 if (bfd_link_pic (info))
2190 {
2191 if (SYMBOL_CALLS_LOCAL (info, h))
2192 {
2193 struct elf_dyn_relocs **pp;
2194
2195 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2196 {
2197 p->count -= p->pc_count;
2198 p->pc_count = 0;
2199 if (p->count == 0)
2200 *pp = p->next;
2201 else
2202 pp = &p->next;
2203 }
2204 }
2205
2206 /* Also discard relocs on undefined weak syms with non-default
2207 visibility. */
2208 if (eh->dyn_relocs != NULL
2209 && h->root.type == bfd_link_hash_undefweak)
2210 {
2211 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2212 eh->dyn_relocs = NULL;
2213
2214 /* Make sure undefined weak symbols are output as a dynamic
2215 symbol in PIEs. */
2216 else if (h->dynindx == -1
2217 && !h->forced_local)
2218 {
2219 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2220 return FALSE;
2221 }
2222 }
2223 }
2224 else
2225 {
2226 /* For the non-shared case, discard space for relocs against
2227 symbols which turn out to need copy relocs or are not
2228 dynamic. */
2229
2230 if (!h->non_got_ref
2231 && ((h->def_dynamic
2232 && !h->def_regular)
2233 || (htab->root.dynamic_sections_created
2234 && (h->root.type == bfd_link_hash_undefweak
2235 || h->root.type == bfd_link_hash_undefined))))
2236 {
2237 /* Make sure this symbol is output as a dynamic symbol.
2238 Undefined weak syms won't yet be marked as dynamic. */
2239 if (h->dynindx == -1
2240 && !h->forced_local)
2241 {
2242 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2243 return FALSE;
2244 }
2245
2246 /* If that succeeded, we know we'll be keeping all the
2247 relocs. */
2248 if (h->dynindx != -1)
2249 goto keep;
2250 }
2251
2252 eh->dyn_relocs = NULL;
2253
2254 keep: ;
2255 }
2256
2257 /* Finally, allocate space. */
2258 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2259 {
2260 asection *sreloc = elf_section_data (p->sec)->sreloc;
2261 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2262 }
2263
2264 return TRUE;
2265 }
2266
2267 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2268 read-only sections. */
2269
2270 static bfd_boolean
2271 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2272 {
2273 asection *sec;
2274
2275 if (h->root.type == bfd_link_hash_indirect)
2276 return TRUE;
2277
2278 sec = readonly_dynrelocs (h);
2279 if (sec != NULL)
2280 {
2281 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2282
2283 info->flags |= DF_TEXTREL;
2284 info->callbacks->minfo
2285 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2286 sec->owner, h->root.root.string, sec);
2287
2288 /* Not an error, just cut short the traversal. */
2289 return FALSE;
2290 }
2291 return TRUE;
2292 }
2293
2294 /* Set the sizes of the dynamic sections. */
2295
2296 static bfd_boolean
2297 or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2298 struct bfd_link_info *info)
2299 {
2300 struct elf_or1k_link_hash_table *htab;
2301 bfd *dynobj;
2302 asection *s;
2303 bfd_boolean relocs;
2304 bfd *ibfd;
2305
2306 htab = or1k_elf_hash_table (info);
2307 if (htab == NULL)
2308 return FALSE;
2309
2310 dynobj = htab->root.dynobj;
2311 BFD_ASSERT (dynobj != NULL);
2312
2313 if (htab->root.dynamic_sections_created)
2314 {
2315 /* Set the contents of the .interp section to the interpreter. */
2316 if (bfd_link_executable (info) && !info->nointerp)
2317 {
2318 s = bfd_get_section_by_name (dynobj, ".interp");
2319 BFD_ASSERT (s != NULL);
2320 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2321 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2322 }
2323 }
2324
2325 /* Set up .got offsets for local syms, and space for local dynamic
2326 relocs. */
2327 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2328 {
2329 bfd_signed_vma *local_got;
2330 bfd_signed_vma *end_local_got;
2331 bfd_size_type locsymcount;
2332 Elf_Internal_Shdr *symtab_hdr;
2333 unsigned char *local_tls_type;
2334 asection *srel;
2335
2336 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2337 continue;
2338
2339 for (s = ibfd->sections; s != NULL; s = s->next)
2340 {
2341 struct elf_dyn_relocs *p;
2342
2343 for (p = ((struct elf_dyn_relocs *)
2344 elf_section_data (s)->local_dynrel);
2345 p != NULL;
2346 p = p->next)
2347 {
2348 if (! bfd_is_abs_section (p->sec)
2349 && bfd_is_abs_section (p->sec->output_section))
2350 {
2351 /* Input section has been discarded, either because
2352 it is a copy of a linkonce section or due to
2353 linker script /DISCARD/, so we'll be discarding
2354 the relocs too. */
2355 }
2356 else if (p->count != 0)
2357 {
2358 srel = elf_section_data (p->sec)->sreloc;
2359 srel->size += p->count * sizeof (Elf32_External_Rela);
2360 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2361 info->flags |= DF_TEXTREL;
2362 }
2363 }
2364 }
2365
2366 local_got = elf_local_got_refcounts (ibfd);
2367 if (!local_got)
2368 continue;
2369
2370 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2371 locsymcount = symtab_hdr->sh_info;
2372 end_local_got = local_got + locsymcount;
2373 s = htab->root.sgot;
2374 srel = htab->root.srelgot;
2375 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2376 for (; local_got < end_local_got; ++local_got)
2377 {
2378 if (*local_got > 0)
2379 {
2380 *local_got = s->size;
2381
2382 /* TLS GD requires two GOT and two relocs. */
2383 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2384 s->size += 8;
2385 else
2386 s->size += 4;
2387 if (bfd_link_pic (info))
2388 {
2389 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2390 srel->size += 2 * sizeof (Elf32_External_Rela);
2391 else
2392 srel->size += sizeof (Elf32_External_Rela);
2393 }
2394 }
2395 else
2396
2397 *local_got = (bfd_vma) -1;
2398
2399 if (local_tls_type)
2400 ++local_tls_type;
2401 }
2402 }
2403
2404 /* Allocate global sym .plt and .got entries, and space for global
2405 sym dynamic relocs. */
2406 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2407
2408 /* We now have determined the sizes of the various dynamic sections.
2409 Allocate memory for them. */
2410 relocs = FALSE;
2411 for (s = dynobj->sections; s != NULL; s = s->next)
2412 {
2413 if ((s->flags & SEC_LINKER_CREATED) == 0)
2414 continue;
2415
2416 if (s == htab->root.splt
2417 || s == htab->root.sgot
2418 || s == htab->root.sgotplt
2419 || s == htab->root.sdynbss
2420 || s == htab->root.sdynrelro)
2421 {
2422 /* Strip this section if we don't need it; see the
2423 comment below. */
2424 }
2425 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2426 {
2427 if (s->size != 0 && s != htab->root.srelplt)
2428 relocs = TRUE;
2429
2430 /* We use the reloc_count field as a counter if we need
2431 to copy relocs into the output file. */
2432 s->reloc_count = 0;
2433 }
2434 else
2435 /* It's not one of our sections, so don't allocate space. */
2436 continue;
2437
2438 if (s->size == 0)
2439 {
2440 /* If we don't need this section, strip it from the
2441 output file. This is mostly to handle .rela.bss and
2442 .rela.plt. We must create both sections in
2443 create_dynamic_sections, because they must be created
2444 before the linker maps input sections to output
2445 sections. The linker does that before
2446 adjust_dynamic_symbol is called, and it is that
2447 function which decides whether anything needs to go
2448 into these sections. */
2449 s->flags |= SEC_EXCLUDE;
2450 continue;
2451 }
2452
2453 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2454 continue;
2455
2456 /* Allocate memory for the section contents. We use bfd_zalloc
2457 here in case unused entries are not reclaimed before the
2458 section's contents are written out. This should not happen,
2459 but this way if it does, we get a R_OR1K_NONE reloc instead
2460 of garbage. */
2461 s->contents = bfd_zalloc (dynobj, s->size);
2462
2463 if (s->contents == NULL)
2464 return FALSE;
2465 }
2466
2467 if (htab->root.dynamic_sections_created)
2468 {
2469 /* Add some entries to the .dynamic section. We fill in the
2470 values later, in or1k_elf_finish_dynamic_sections, but we
2471 must add the entries now so that we get the correct size for
2472 the .dynamic section. The DT_DEBUG entry is filled in by the
2473 dynamic linker and used by the debugger. */
2474 #define add_dynamic_entry(TAG, VAL) \
2475 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2476
2477 if (bfd_link_executable (info))
2478 {
2479 if (! add_dynamic_entry (DT_DEBUG, 0))
2480 return FALSE;
2481 }
2482
2483 if (htab->root.splt->size != 0)
2484 {
2485 if (! add_dynamic_entry (DT_PLTGOT, 0)
2486 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2487 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2488 || ! add_dynamic_entry (DT_JMPREL, 0))
2489 return FALSE;
2490 }
2491
2492 if (relocs)
2493 {
2494 if (! add_dynamic_entry (DT_RELA, 0)
2495 || ! add_dynamic_entry (DT_RELASZ, 0)
2496 || ! add_dynamic_entry (DT_RELAENT,
2497 sizeof (Elf32_External_Rela)))
2498 return FALSE;
2499
2500 /* If any dynamic relocs apply to a read-only section,
2501 then we need a DT_TEXTREL entry. */
2502 if ((info->flags & DF_TEXTREL) == 0)
2503 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
2504
2505 if ((info->flags & DF_TEXTREL) != 0)
2506 {
2507 if (! add_dynamic_entry (DT_TEXTREL, 0))
2508 return FALSE;
2509 }
2510 }
2511 }
2512
2513 #undef add_dynamic_entry
2514 return TRUE;
2515 }
2516
2517 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2518
2519 static void
2520 or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
2521 struct elf_link_hash_entry *dir,
2522 struct elf_link_hash_entry *ind)
2523 {
2524 struct elf_or1k_link_hash_entry * edir;
2525 struct elf_or1k_link_hash_entry * eind;
2526
2527 edir = (struct elf_or1k_link_hash_entry *) dir;
2528 eind = (struct elf_or1k_link_hash_entry *) ind;
2529
2530 if (eind->dyn_relocs != NULL)
2531 {
2532 if (edir->dyn_relocs != NULL)
2533 {
2534 struct elf_dyn_relocs **pp;
2535 struct elf_dyn_relocs *p;
2536
2537 /* Add reloc counts against the indirect sym to the direct sym
2538 list. Merge any entries against the same section. */
2539 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2540 {
2541 struct elf_dyn_relocs *q;
2542
2543 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2544 if (q->sec == p->sec)
2545 {
2546 q->pc_count += p->pc_count;
2547 q->count += p->count;
2548 *pp = p->next;
2549 break;
2550 }
2551 if (q == NULL)
2552 pp = &p->next;
2553 }
2554 *pp = edir->dyn_relocs;
2555 }
2556
2557 edir->dyn_relocs = eind->dyn_relocs;
2558 eind->dyn_relocs = NULL;
2559 }
2560
2561 if (ind->root.type == bfd_link_hash_indirect)
2562 {
2563 if (dir->got.refcount <= 0)
2564 {
2565 edir->tls_type = eind->tls_type;
2566 eind->tls_type = TLS_UNKNOWN;
2567 }
2568 }
2569
2570 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2571 }
2572
2573 /* Set the right machine number. */
2574
2575 static bfd_boolean
2576 or1k_elf_object_p (bfd *abfd)
2577 {
2578 unsigned long mach = bfd_mach_or1k;
2579
2580 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2581 mach = bfd_mach_or1knd;
2582
2583 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2584 }
2585
2586 /* Store the machine number in the flags field. */
2587
2588 static void
2589 or1k_elf_final_write_processing (bfd *abfd,
2590 bfd_boolean linker ATTRIBUTE_UNUSED)
2591 {
2592 switch (bfd_get_mach (abfd))
2593 {
2594 default:
2595 case bfd_mach_or1k:
2596 break;
2597 case bfd_mach_or1knd:
2598 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2599 break;
2600 }
2601 }
2602
2603 static bfd_boolean
2604 or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2605 {
2606 BFD_ASSERT (!elf_flags_init (abfd)
2607 || elf_elfheader (abfd)->e_flags == flags);
2608
2609 elf_elfheader (abfd)->e_flags = flags;
2610 elf_flags_init (abfd) = TRUE;
2611 return TRUE;
2612 }
2613
2614 /* Make sure all input files are consistent with respect to
2615 EF_OR1K_NODELAY flag setting. */
2616
2617 static bfd_boolean
2618 elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2619 {
2620 bfd *obfd = info->output_bfd;
2621 flagword out_flags;
2622 flagword in_flags;
2623
2624 in_flags = elf_elfheader (ibfd)->e_flags;
2625 out_flags = elf_elfheader (obfd)->e_flags;
2626
2627 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2628 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2629 return TRUE;
2630
2631 if (!elf_flags_init (obfd))
2632 {
2633 elf_flags_init (obfd) = TRUE;
2634 elf_elfheader (obfd)->e_flags = in_flags;
2635
2636 return TRUE;
2637 }
2638
2639 if (in_flags == out_flags)
2640 return TRUE;
2641
2642 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2643 {
2644 _bfd_error_handler
2645 (_("%pB: %s flag mismatch with previous modules"),
2646 ibfd, "EF_OR1K_NODELAY");
2647
2648 bfd_set_error (bfd_error_bad_value);
2649 return FALSE;
2650 }
2651
2652 return TRUE;
2653
2654 }
2655
2656 #define ELF_ARCH bfd_arch_or1k
2657 #define ELF_MACHINE_CODE EM_OR1K
2658 #define ELF_TARGET_ID OR1K_ELF_DATA
2659 #define ELF_MAXPAGESIZE 0x2000
2660
2661 #define TARGET_BIG_SYM or1k_elf32_vec
2662 #define TARGET_BIG_NAME "elf32-or1k"
2663
2664 #define elf_info_to_howto_rel NULL
2665 #define elf_info_to_howto or1k_info_to_howto_rela
2666 #define elf_backend_relocate_section or1k_elf_relocate_section
2667 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
2668 #define elf_backend_check_relocs or1k_elf_check_relocs
2669 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2670 #define elf_backend_can_gc_sections 1
2671 #define elf_backend_rela_normal 1
2672
2673 #define bfd_elf32_mkobject elf_or1k_mkobject
2674
2675 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2676 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2677 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2678 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2679
2680 #define elf_backend_object_p or1k_elf_object_p
2681 #define elf_backend_final_write_processing or1k_elf_final_write_processing
2682 #define elf_backend_can_refcount 1
2683
2684 #define elf_backend_plt_readonly 1
2685 #define elf_backend_want_got_plt 1
2686 #define elf_backend_want_plt_sym 0
2687 #define elf_backend_got_header_size 12
2688 #define elf_backend_dtrel_excludes_plt 1
2689 #define elf_backend_want_dynrelro 1
2690
2691 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2692 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
2693 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
2694 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2695 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2696 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2697 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
2698
2699 #include "elf32-target.h"
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