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[binutils-gdb.git] / bfd / elf32-or1k.c
blob6673d4f563e6d78075b564e3933d331721eb744a
1 /* Or1k-specific support for 32-bit ELF.
2 Copyright (C) 2001-2017 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 /* The linker needs to keep track of the number of relocs that it
560 decides to copy as dynamic relocs in check_relocs for each symbol.
561 This is so that it can later discard them if they are found to be
562 unnecessary. We store the information in a field extending the
563 regular ELF linker hash table. */
564
565 struct elf_or1k_dyn_relocs
566 {
567 struct elf_or1k_dyn_relocs *next;
568
569 /* The input section of the reloc. */
570 asection *sec;
571
572 /* Total number of relocs copied for the input section. */
573 bfd_size_type count;
574
575 /* Number of pc-relative relocs copied for the input section. */
576 bfd_size_type pc_count;
577 };
578
579 #define TLS_UNKNOWN 0
580 #define TLS_NONE 1
581 #define TLS_GD 2
582 #define TLS_LD 3
583 #define TLS_IE 4
584 #define TLS_LE 5
585
586 /* ELF linker hash entry. */
587 struct elf_or1k_link_hash_entry
588 {
589 struct elf_link_hash_entry root;
590
591 /* Track dynamic relocs copied for this symbol. */
592 struct elf_or1k_dyn_relocs *dyn_relocs;
593
594 /* Track type of TLS access. */
595 unsigned char tls_type;
596 };
597
598 /* ELF object data. */
599 struct elf_or1k_obj_tdata
600 {
601 struct elf_obj_tdata root;
602
603 /* tls_type for each local got entry. */
604 unsigned char *local_tls_type;
605 };
606
607 #define elf_or1k_tdata(abfd) \
608 ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
609
610 #define elf_or1k_local_tls_type(abfd) \
611 (elf_or1k_tdata (abfd)->local_tls_type)
612
613 /* ELF linker hash table. */
614 struct elf_or1k_link_hash_table
615 {
616 struct elf_link_hash_table root;
617
618 /* Small local sym to section mapping cache. */
619 struct sym_cache sym_sec;
620 };
621
622 /* Get the ELF linker hash table from a link_info structure. */
623 #define or1k_elf_hash_table(p) \
624 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
625 == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
626
627 static bfd_boolean
628 elf_or1k_mkobject (bfd *abfd)
629 {
630 return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
631 OR1K_ELF_DATA);
632 }
633
634 /* Create an entry in an or1k ELF linker hash table. */
635
636 static struct bfd_hash_entry *
637 or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
638 struct bfd_hash_table *table,
639 const char *string)
640 {
641 struct elf_or1k_link_hash_entry *ret =
642 (struct elf_or1k_link_hash_entry *) entry;
643
644 /* Allocate the structure if it has not already been allocated by a
645 subclass. */
646 if (ret == NULL)
647 ret = bfd_hash_allocate (table,
648 sizeof (struct elf_or1k_link_hash_entry));
649 if (ret == NULL)
650 return NULL;
651
652 /* Call the allocation method of the superclass. */
653 ret = ((struct elf_or1k_link_hash_entry *)
654 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
655 table, string));
656 if (ret != NULL)
657 {
658 struct elf_or1k_link_hash_entry *eh;
659
660 eh = (struct elf_or1k_link_hash_entry *) ret;
661 eh->dyn_relocs = NULL;
662 eh->tls_type = TLS_UNKNOWN;
663 }
664
665 return (struct bfd_hash_entry *) ret;
666 }
667
668 /* Create an or1k ELF linker hash table. */
669
670 static struct bfd_link_hash_table *
671 or1k_elf_link_hash_table_create (bfd *abfd)
672 {
673 struct elf_or1k_link_hash_table *ret;
674 bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table);
675
676 ret = bfd_zmalloc (amt);
677 if (ret == NULL)
678 return NULL;
679
680 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
681 or1k_elf_link_hash_newfunc,
682 sizeof (struct elf_or1k_link_hash_entry),
683 OR1K_ELF_DATA))
684 {
685 free (ret);
686 return NULL;
687 }
688
689 return &ret->root.root;
690 }
691
692 static reloc_howto_type *
693 or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
694 bfd_reloc_code_real_type code)
695 {
696 unsigned int i;
697
698 for (i = ARRAY_SIZE (or1k_reloc_map); i--;)
699 if (or1k_reloc_map[i].bfd_reloc_val == code)
700 return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val];
701
702 return NULL;
703 }
704
705 static reloc_howto_type *
706 or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
707 const char *r_name)
708 {
709 unsigned int i;
710
711 for (i = 0;
712 i < (sizeof (or1k_elf_howto_table)
713 / sizeof (or1k_elf_howto_table[0]));
714 i++)
715 if (or1k_elf_howto_table[i].name != NULL
716 && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
717 return &or1k_elf_howto_table[i];
718
719 return NULL;
720 }
721
722 /* Set the howto pointer for an Or1k ELF reloc. */
723
724 static void
725 or1k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
726 arelent * cache_ptr,
727 Elf_Internal_Rela * dst)
728 {
729 unsigned int r_type;
730
731 r_type = ELF32_R_TYPE (dst->r_info);
732 if (r_type >= (unsigned int) R_OR1K_max)
733 {
734 /* xgettext:c-format */
735 _bfd_error_handler (_("%B: invalid OR1K reloc number: %d"), abfd, r_type);
736 r_type = 0;
737 }
738 cache_ptr->howto = & or1k_elf_howto_table[r_type];
739 }
740
741
742 /* Return the relocation value for @tpoff relocations.. */
743 static bfd_vma
744 tpoff (struct bfd_link_info *info, bfd_vma address)
745 {
746 /* If tls_sec is NULL, we should have signalled an error already. */
747 if (elf_hash_table (info)->tls_sec == NULL)
748 return 0;
749
750 /* The thread pointer on or1k stores the address after the TCB where
751 the data is, just compute the difference. No need to compensate
752 for the size of TCB. */
753 return (address - elf_hash_table (info)->tls_sec->vma);
754 }
755
756 /* Relocate an Or1k ELF section.
757
758 The RELOCATE_SECTION function is called by the new ELF backend linker
759 to handle the relocations for a section.
760
761 The relocs are always passed as Rela structures; if the section
762 actually uses Rel structures, the r_addend field will always be
763 zero.
764
765 This function is responsible for adjusting the section contents as
766 necessary, and (if using Rela relocs and generating a relocatable
767 output file) adjusting the reloc addend as necessary.
768
769 This function does not have to worry about setting the reloc
770 address or the reloc symbol index.
771
772 LOCAL_SYMS is a pointer to the swapped in local symbols.
773
774 LOCAL_SECTIONS is an array giving the section in the input file
775 corresponding to the st_shndx field of each local symbol.
776
777 The global hash table entry for the global symbols can be found
778 via elf_sym_hashes (input_bfd).
779
780 When generating relocatable output, this function must handle
781 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
782 going to be the section symbol corresponding to the output
783 section, which means that the addend must be adjusted
784 accordingly. */
785
786 static bfd_boolean
787 or1k_elf_relocate_section (bfd *output_bfd,
788 struct bfd_link_info *info,
789 bfd *input_bfd,
790 asection *input_section,
791 bfd_byte *contents,
792 Elf_Internal_Rela *relocs,
793 Elf_Internal_Sym *local_syms,
794 asection **local_sections)
795 {
796 Elf_Internal_Shdr *symtab_hdr;
797 struct elf_link_hash_entry **sym_hashes;
798 Elf_Internal_Rela *rel;
799 Elf_Internal_Rela *relend;
800 struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
801 bfd *dynobj;
802 asection *sreloc;
803 bfd_vma *local_got_offsets;
804 asection *sgot;
805
806 if (htab == NULL)
807 return FALSE;
808
809 dynobj = htab->root.dynobj;
810 local_got_offsets = elf_local_got_offsets (input_bfd);
811
812 sreloc = elf_section_data (input_section)->sreloc;
813
814 sgot = htab->root.sgot;
815
816 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
817 sym_hashes = elf_sym_hashes (input_bfd);
818 relend = relocs + input_section->reloc_count;
819
820 for (rel = relocs; rel < relend; rel++)
821 {
822 reloc_howto_type *howto;
823 unsigned long r_symndx;
824 Elf_Internal_Sym *sym;
825 asection *sec;
826 struct elf_link_hash_entry *h;
827 bfd_vma relocation;
828 bfd_reloc_status_type r;
829 const char *name = NULL;
830 int r_type;
831
832 r_type = ELF32_R_TYPE (rel->r_info);
833 r_symndx = ELF32_R_SYM (rel->r_info);
834
835 if (r_type == R_OR1K_GNU_VTINHERIT
836 || r_type == R_OR1K_GNU_VTENTRY)
837 continue;
838
839 if (r_type < 0 || r_type >= (int) R_OR1K_max)
840 {
841 bfd_set_error (bfd_error_bad_value);
842 return FALSE;
843 }
844
845 howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
846 h = NULL;
847 sym = NULL;
848 sec = NULL;
849
850 if (r_symndx < symtab_hdr->sh_info)
851 {
852 sym = local_syms + r_symndx;
853 sec = local_sections[r_symndx];
854 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
855
856 name = bfd_elf_string_from_elf_section
857 (input_bfd, symtab_hdr->sh_link, sym->st_name);
858 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
859 }
860 else
861 {
862 bfd_boolean unresolved_reloc, warned, ignored;
863
864 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
865 r_symndx, symtab_hdr, sym_hashes,
866 h, sec, relocation,
867 unresolved_reloc, warned, ignored);
868 }
869
870 if (sec != NULL && discarded_section (sec))
871 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
872 rel, 1, relend, howto, 0, contents);
873
874 if (bfd_link_relocatable (info))
875 continue;
876
877 switch (howto->type)
878 {
879 case R_OR1K_PLT26:
880 {
881 if (htab->root.splt != NULL && h != NULL
882 && h->plt.offset != (bfd_vma) -1)
883 {
884 relocation = (htab->root.splt->output_section->vma
885 + htab->root.splt->output_offset
886 + h->plt.offset);
887 }
888 break;
889 }
890
891 case R_OR1K_GOT16:
892 /* Relocation is to the entry for this symbol in the global
893 offset table. */
894 BFD_ASSERT (sgot != NULL);
895 if (h != NULL)
896 {
897 bfd_boolean dyn;
898 bfd_vma off;
899
900 off = h->got.offset;
901 BFD_ASSERT (off != (bfd_vma) -1);
902
903 dyn = htab->root.dynamic_sections_created;
904 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
905 bfd_link_pic (info),
906 h)
907 || (bfd_link_pic (info)
908 && SYMBOL_REFERENCES_LOCAL (info, h)))
909 {
910 /* This is actually a static link, or it is a
911 -Bsymbolic link and the symbol is defined
912 locally, or the symbol was forced to be local
913 because of a version file. We must initialize
914 this entry in the global offset table. Since the
915 offset must always be a multiple of 4, we use the
916 least significant bit to record whether we have
917 initialized it already.
918
919 When doing a dynamic link, we create a .rela.got
920 relocation entry to initialize the value. This
921 is done in the finish_dynamic_symbol routine. */
922 if ((off & 1) != 0)
923 off &= ~1;
924 else
925 {
926 /* Write entry in GOT. */
927 bfd_put_32 (output_bfd, relocation,
928 sgot->contents + off);
929 /* Mark GOT entry as having been written. */
930 h->got.offset |= 1;
931 }
932 }
933
934 relocation = sgot->output_offset + off;
935 }
936 else
937 {
938 bfd_vma off;
939 bfd_byte *loc;
940
941 BFD_ASSERT (local_got_offsets != NULL
942 && local_got_offsets[r_symndx] != (bfd_vma) -1);
943
944 /* Get offset into GOT table. */
945 off = local_got_offsets[r_symndx];
946
947 /* The offset must always be a multiple of 4. We use
948 the least significant bit to record whether we have
949 already processed this entry. */
950 if ((off & 1) != 0)
951 off &= ~1;
952 else
953 {
954 /* Write entry in GOT. */
955 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
956 if (bfd_link_pic (info))
957 {
958 asection *srelgot;
959 Elf_Internal_Rela outrel;
960
961 /* We need to generate a R_OR1K_RELATIVE reloc
962 for the dynamic linker. */
963 srelgot = htab->root.srelgot;
964 BFD_ASSERT (srelgot != NULL);
965
966 outrel.r_offset = (sgot->output_section->vma
967 + sgot->output_offset
968 + off);
969 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
970 outrel.r_addend = relocation;
971 loc = srelgot->contents;
972 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
973 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
974 ++srelgot->reloc_count;
975 }
976
977 local_got_offsets[r_symndx] |= 1;
978 }
979 relocation = sgot->output_offset + off;
980 }
981
982 /* Addend should be zero. */
983 if (rel->r_addend != 0)
984 _bfd_error_handler
985 (_("internal error: addend should be zero for R_OR1K_GOT16"));
986
987 break;
988
989 case R_OR1K_GOTOFF_LO16:
990 case R_OR1K_GOTOFF_HI16:
991 /* Relocation is offset from GOT. */
992 BFD_ASSERT (sgot != NULL);
993 relocation
994 -= (htab->root.hgot->root.u.def.value
995 + htab->root.hgot->root.u.def.section->output_offset
996 + htab->root.hgot->root.u.def.section->output_section->vma);
997 break;
998
999 case R_OR1K_INSN_REL_26:
1000 case R_OR1K_HI_16_IN_INSN:
1001 case R_OR1K_LO_16_IN_INSN:
1002 case R_OR1K_32:
1003 /* R_OR1K_16? */
1004 {
1005 /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
1006 from removed linkonce sections, or sections discarded by
1007 a linker script. */
1008 if (r_symndx == STN_UNDEF
1009 || (input_section->flags & SEC_ALLOC) == 0)
1010 break;
1011
1012 if ((bfd_link_pic (info)
1013 && (h == NULL
1014 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1015 || h->root.type != bfd_link_hash_undefweak)
1016 && (howto->type != R_OR1K_INSN_REL_26
1017 || !SYMBOL_CALLS_LOCAL (info, h)))
1018 || (!bfd_link_pic (info)
1019 && h != NULL
1020 && h->dynindx != -1
1021 && !h->non_got_ref
1022 && ((h->def_dynamic
1023 && !h->def_regular)
1024 || h->root.type == bfd_link_hash_undefweak
1025 || h->root.type == bfd_link_hash_undefined)))
1026 {
1027 Elf_Internal_Rela outrel;
1028 bfd_byte *loc;
1029 bfd_boolean skip;
1030
1031 /* When generating a shared object, these relocations
1032 are copied into the output file to be resolved at run
1033 time. */
1034
1035 BFD_ASSERT (sreloc != NULL);
1036
1037 skip = FALSE;
1038
1039 outrel.r_offset =
1040 _bfd_elf_section_offset (output_bfd, info, input_section,
1041 rel->r_offset);
1042 if (outrel.r_offset == (bfd_vma) -1)
1043 skip = TRUE;
1044 else if (outrel.r_offset == (bfd_vma) -2)
1045 skip = TRUE;
1046 outrel.r_offset += (input_section->output_section->vma
1047 + input_section->output_offset);
1048
1049 if (skip)
1050 memset (&outrel, 0, sizeof outrel);
1051 /* h->dynindx may be -1 if the symbol was marked to
1052 become local. */
1053 else if (h != NULL
1054 && ((! info->symbolic && h->dynindx != -1)
1055 || !h->def_regular))
1056 {
1057 BFD_ASSERT (h->dynindx != -1);
1058 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1059 outrel.r_addend = rel->r_addend;
1060 }
1061 else
1062 {
1063 if (r_type == R_OR1K_32)
1064 {
1065 outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1066 outrel.r_addend = relocation + rel->r_addend;
1067 }
1068 else
1069 {
1070 BFD_FAIL ();
1071 _bfd_error_handler
1072 (_("%B: probably compiled without -fPIC?"),
1073 input_bfd);
1074 bfd_set_error (bfd_error_bad_value);
1075 return FALSE;
1076 }
1077 }
1078
1079 loc = sreloc->contents;
1080 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1081 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
1082 break;
1083 }
1084 break;
1085 }
1086
1087 case R_OR1K_TLS_LDM_HI16:
1088 case R_OR1K_TLS_LDM_LO16:
1089 case R_OR1K_TLS_LDO_HI16:
1090 case R_OR1K_TLS_LDO_LO16:
1091 /* TODO: implement support for local dynamic. */
1092 BFD_FAIL ();
1093 _bfd_error_handler
1094 (_("%B: support for local dynamic not implemented"),
1095 input_bfd);
1096 bfd_set_error (bfd_error_bad_value);
1097 return FALSE;
1098
1099
1100 case R_OR1K_TLS_GD_HI16:
1101 case R_OR1K_TLS_GD_LO16:
1102 case R_OR1K_TLS_IE_HI16:
1103 case R_OR1K_TLS_IE_LO16:
1104 {
1105 bfd_vma gotoff;
1106 Elf_Internal_Rela rela;
1107 bfd_byte *loc;
1108 int dynamic;
1109
1110 sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
1111
1112 /* Mark as TLS related GOT entry by setting
1113 bit 2 as well as bit 1. */
1114 if (h != NULL)
1115 {
1116 gotoff = h->got.offset;
1117 h->got.offset |= 3;
1118 }
1119 else
1120 {
1121 gotoff = local_got_offsets[r_symndx];
1122 local_got_offsets[r_symndx] |= 3;
1123 }
1124
1125 /* Only process the relocation once. */
1126 if (gotoff & 1)
1127 {
1128 relocation = sgot->output_offset + (gotoff & ~3);
1129 break;
1130 }
1131
1132 BFD_ASSERT (elf_hash_table (info)->hgot == NULL
1133 || elf_hash_table (info)->hgot->root.u.def.value == 0);
1134
1135 /* Dynamic entries will require relocations. if we do not need
1136 them we will just use the default R_OR1K_NONE and
1137 not set anything. */
1138 dynamic = bfd_link_pic (info)
1139 || (sec && (sec->flags & SEC_ALLOC) != 0
1140 && h != NULL
1141 && (h->root.type == bfd_link_hash_defweak || !h->def_regular));
1142
1143 /* Shared GD. */
1144 if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
1145 || howto->type == R_OR1K_TLS_GD_LO16))
1146 {
1147 int i;
1148
1149 /* Add DTPMOD and DTPOFF GOT and rela entries. */
1150 for (i = 0; i < 2; ++i)
1151 {
1152 rela.r_offset = sgot->output_section->vma +
1153 sgot->output_offset + gotoff + i*4;
1154 if (h != NULL && h->dynindx != -1)
1155 {
1156 rela.r_info = ELF32_R_INFO (h->dynindx,
1157 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1158 rela.r_addend = 0;
1159 }
1160 else
1161 {
1162 rela.r_info = ELF32_R_INFO (0,
1163 (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
1164 rela.r_addend = tpoff (info, relocation);
1165 }
1166
1167 loc = sreloc->contents;
1168 loc += sreloc->reloc_count++ *
1169 sizeof (Elf32_External_Rela);
1170
1171 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1172 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
1173 }
1174 }
1175 /* Static GD. */
1176 else if (howto->type == R_OR1K_TLS_GD_HI16
1177 || howto->type == R_OR1K_TLS_GD_LO16)
1178 {
1179 bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
1180 bfd_put_32 (output_bfd, tpoff (info, relocation),
1181 sgot->contents + gotoff + 4);
1182 }
1183 /* Shared IE. */
1184 else if (dynamic)
1185 {
1186 /* Add TPOFF GOT and rela entries. */
1187 rela.r_offset = sgot->output_section->vma +
1188 sgot->output_offset + gotoff;
1189 if (h != NULL && h->dynindx != -1)
1190 {
1191 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
1192 rela.r_addend = 0;
1193 }
1194 else
1195 {
1196 rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
1197 rela.r_addend = tpoff (info, relocation);
1198 }
1199
1200 loc = sreloc->contents;
1201 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
1202
1203 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1204 bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
1205 }
1206 /* Static IE. */
1207 else
1208 {
1209 bfd_put_32 (output_bfd, tpoff (info, relocation),
1210 sgot->contents + gotoff);
1211 }
1212 relocation = sgot->output_offset + gotoff;
1213 break;
1214 }
1215 case R_OR1K_TLS_LE_HI16:
1216 case R_OR1K_TLS_LE_LO16:
1217
1218 /* Relocation is offset from TP. */
1219 relocation = tpoff (info, relocation);
1220 break;
1221
1222 case R_OR1K_TLS_DTPMOD:
1223 case R_OR1K_TLS_DTPOFF:
1224 case R_OR1K_TLS_TPOFF:
1225 /* These are resolved dynamically on load and shouldn't
1226 be used as linker input. */
1227 BFD_FAIL ();
1228 _bfd_error_handler
1229 (_("%B: will not resolve runtime TLS relocation"),
1230 input_bfd);
1231 bfd_set_error (bfd_error_bad_value);
1232 return FALSE;
1233
1234 default:
1235 break;
1236 }
1237 r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
1238 rel->r_offset, relocation, rel->r_addend);
1239
1240 if (r != bfd_reloc_ok)
1241 {
1242 const char *msg = NULL;
1243
1244 switch (r)
1245 {
1246 case bfd_reloc_overflow:
1247 (*info->callbacks->reloc_overflow)
1248 (info, (h ? &h->root : NULL), name, howto->name,
1249 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
1250 break;
1251
1252 case bfd_reloc_undefined:
1253 (*info->callbacks->undefined_symbol)
1254 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1255 break;
1256
1257 case bfd_reloc_outofrange:
1258 msg = _("internal error: out of range error");
1259 break;
1260
1261 case bfd_reloc_notsupported:
1262 msg = _("internal error: unsupported relocation error");
1263 break;
1264
1265 case bfd_reloc_dangerous:
1266 msg = _("internal error: dangerous relocation");
1267 break;
1268
1269 default:
1270 msg = _("internal error: unknown error");
1271 break;
1272 }
1273
1274 if (msg)
1275 (*info->callbacks->warning) (info, msg, name, input_bfd,
1276 input_section, rel->r_offset);
1277 }
1278 }
1279
1280 return TRUE;
1281 }
1282
1283 /* Return the section that should be marked against GC for a given
1284 relocation. */
1285
1286 static asection *
1287 or1k_elf_gc_mark_hook (asection *sec,
1288 struct bfd_link_info *info,
1289 Elf_Internal_Rela *rel,
1290 struct elf_link_hash_entry *h,
1291 Elf_Internal_Sym *sym)
1292 {
1293 if (h != NULL)
1294 switch (ELF32_R_TYPE (rel->r_info))
1295 {
1296 case R_OR1K_GNU_VTINHERIT:
1297 case R_OR1K_GNU_VTENTRY:
1298 return NULL;
1299 }
1300
1301 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1302 }
1303
1304 /* Look through the relocs for a section during the first phase. */
1305
1306 static bfd_boolean
1307 or1k_elf_check_relocs (bfd *abfd,
1308 struct bfd_link_info *info,
1309 asection *sec,
1310 const Elf_Internal_Rela *relocs)
1311 {
1312 Elf_Internal_Shdr *symtab_hdr;
1313 struct elf_link_hash_entry **sym_hashes;
1314 const Elf_Internal_Rela *rel;
1315
1316 const Elf_Internal_Rela *rel_end;
1317 struct elf_or1k_link_hash_table *htab;
1318 bfd *dynobj;
1319 asection *sreloc = NULL;
1320
1321 if (bfd_link_relocatable (info))
1322 return TRUE;
1323
1324 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1325 sym_hashes = elf_sym_hashes (abfd);
1326
1327 htab = or1k_elf_hash_table (info);
1328 if (htab == NULL)
1329 return FALSE;
1330
1331 dynobj = htab->root.dynobj;
1332
1333 rel_end = relocs + sec->reloc_count;
1334 for (rel = relocs; rel < rel_end; rel++)
1335 {
1336 struct elf_link_hash_entry *h;
1337 unsigned long r_symndx;
1338 unsigned char tls_type;
1339
1340 r_symndx = ELF32_R_SYM (rel->r_info);
1341 if (r_symndx < symtab_hdr->sh_info)
1342 h = NULL;
1343 else
1344 {
1345 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1346 while (h->root.type == bfd_link_hash_indirect
1347 || h->root.type == bfd_link_hash_warning)
1348 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1349
1350 /* PR15323, ref flags aren't set for references in the same
1351 object. */
1352 h->root.non_ir_ref_regular = 1;
1353 }
1354
1355 switch (ELF32_R_TYPE (rel->r_info))
1356 {
1357 case R_OR1K_TLS_GD_HI16:
1358 case R_OR1K_TLS_GD_LO16:
1359 tls_type = TLS_GD;
1360 break;
1361 case R_OR1K_TLS_LDM_HI16:
1362 case R_OR1K_TLS_LDM_LO16:
1363 case R_OR1K_TLS_LDO_HI16:
1364 case R_OR1K_TLS_LDO_LO16:
1365 tls_type = TLS_LD;
1366 break;
1367 case R_OR1K_TLS_IE_HI16:
1368 case R_OR1K_TLS_IE_LO16:
1369 tls_type = TLS_IE;
1370 break;
1371 case R_OR1K_TLS_LE_HI16:
1372 case R_OR1K_TLS_LE_LO16:
1373 tls_type = TLS_LE;
1374 break;
1375 default:
1376 tls_type = TLS_NONE;
1377 }
1378
1379 /* Record TLS type. */
1380 if (h != NULL)
1381 ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
1382 else
1383 {
1384 unsigned char *local_tls_type;
1385
1386 /* This is a TLS type record for a local symbol. */
1387 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
1388 if (local_tls_type == NULL)
1389 {
1390 bfd_size_type size;
1391
1392 size = symtab_hdr->sh_info;
1393 local_tls_type = bfd_zalloc (abfd, size);
1394 if (local_tls_type == NULL)
1395 return FALSE;
1396 elf_or1k_local_tls_type (abfd) = local_tls_type;
1397 }
1398 local_tls_type[r_symndx] = tls_type;
1399 }
1400
1401 switch (ELF32_R_TYPE (rel->r_info))
1402 {
1403 /* This relocation describes the C++ object vtable hierarchy.
1404 Reconstruct it for later use during GC. */
1405 case R_OR1K_GNU_VTINHERIT:
1406 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1407 return FALSE;
1408 break;
1409
1410 /* This relocation describes which C++ vtable entries are actually
1411 used. Record for later use during GC. */
1412 case R_OR1K_GNU_VTENTRY:
1413 BFD_ASSERT (h != NULL);
1414 if (h != NULL
1415 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1416 return FALSE;
1417 break;
1418
1419 /* This relocation requires .plt entry. */
1420 case R_OR1K_PLT26:
1421 if (h != NULL)
1422 {
1423 h->needs_plt = 1;
1424 h->plt.refcount += 1;
1425 }
1426 break;
1427
1428 case R_OR1K_GOT16:
1429 case R_OR1K_GOTOFF_HI16:
1430 case R_OR1K_GOTOFF_LO16:
1431 case R_OR1K_TLS_GD_HI16:
1432 case R_OR1K_TLS_GD_LO16:
1433 case R_OR1K_TLS_IE_HI16:
1434 case R_OR1K_TLS_IE_LO16:
1435 if (htab->root.sgot == NULL)
1436 {
1437 if (dynobj == NULL)
1438 htab->root.dynobj = dynobj = abfd;
1439 if (!_bfd_elf_create_got_section (dynobj, info))
1440 return FALSE;
1441 }
1442
1443 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
1444 ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
1445 {
1446 if (h != NULL)
1447 h->got.refcount += 1;
1448 else
1449 {
1450 bfd_signed_vma *local_got_refcounts;
1451
1452 /* This is a global offset table entry for a local symbol. */
1453 local_got_refcounts = elf_local_got_refcounts (abfd);
1454 if (local_got_refcounts == NULL)
1455 {
1456 bfd_size_type size;
1457
1458 size = symtab_hdr->sh_info;
1459 size *= sizeof (bfd_signed_vma);
1460 local_got_refcounts = bfd_zalloc (abfd, size);
1461 if (local_got_refcounts == NULL)
1462 return FALSE;
1463 elf_local_got_refcounts (abfd) = local_got_refcounts;
1464 }
1465 local_got_refcounts[r_symndx] += 1;
1466 }
1467 }
1468 break;
1469
1470 case R_OR1K_INSN_REL_26:
1471 case R_OR1K_HI_16_IN_INSN:
1472 case R_OR1K_LO_16_IN_INSN:
1473 case R_OR1K_32:
1474 /* R_OR1K_16? */
1475 {
1476 if (h != NULL && !bfd_link_pic (info))
1477 {
1478 /* We may need a copy reloc. */
1479 h->non_got_ref = 1;
1480
1481 /* We may also need a .plt entry. */
1482 h->plt.refcount += 1;
1483 if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
1484 h->pointer_equality_needed = 1;
1485 }
1486
1487 /* If we are creating a shared library, and this is a reloc
1488 against a global symbol, or a non PC relative reloc
1489 against a local symbol, then we need to copy the reloc
1490 into the shared library. However, if we are linking with
1491 -Bsymbolic, we do not need to copy a reloc against a
1492 global symbol which is defined in an object we are
1493 including in the link (i.e., DEF_REGULAR is set). At
1494 this point we have not seen all the input files, so it is
1495 possible that DEF_REGULAR is not set now but will be set
1496 later (it is never cleared). In case of a weak definition,
1497 DEF_REGULAR may be cleared later by a strong definition in
1498 a shared library. We account for that possibility below by
1499 storing information in the relocs_copied field of the hash
1500 table entry. A similar situation occurs when creating
1501 shared libraries and symbol visibility changes render the
1502 symbol local.
1503
1504 If on the other hand, we are creating an executable, we
1505 may need to keep relocations for symbols satisfied by a
1506 dynamic library if we manage to avoid copy relocs for the
1507 symbol. */
1508
1509 if ((bfd_link_pic (info)
1510 && (sec->flags & SEC_ALLOC) != 0
1511 && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
1512 || (h != NULL
1513 && (!SYMBOLIC_BIND (info, h)
1514 || h->root.type == bfd_link_hash_defweak
1515 || !h->def_regular))))
1516 || (!bfd_link_pic (info)
1517 && (sec->flags & SEC_ALLOC) != 0
1518 && h != NULL
1519 && (h->root.type == bfd_link_hash_defweak
1520 || !h->def_regular)))
1521 {
1522 struct elf_or1k_dyn_relocs *p;
1523 struct elf_or1k_dyn_relocs **head;
1524
1525 /* When creating a shared object, we must copy these
1526 relocs into the output file. We create a reloc
1527 section in dynobj and make room for the reloc. */
1528 if (sreloc == NULL)
1529 {
1530 const char *name;
1531 unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
1532 unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
1533
1534 name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
1535 if (name == NULL)
1536 return FALSE;
1537
1538 if (strncmp (name, ".rela", 5) != 0
1539 || strcmp (bfd_get_section_name (abfd, sec),
1540 name + 5) != 0)
1541 {
1542 _bfd_error_handler
1543 /* xgettext:c-format */
1544 (_("%B: bad relocation section name `%s\'"),
1545 abfd, name);
1546 }
1547
1548 if (htab->root.dynobj == NULL)
1549 htab->root.dynobj = abfd;
1550 dynobj = htab->root.dynobj;
1551
1552 sreloc = bfd_get_section_by_name (dynobj, name);
1553 if (sreloc == NULL)
1554 {
1555 sreloc = _bfd_elf_make_dynamic_reloc_section
1556 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
1557
1558 if (sreloc == NULL)
1559 return FALSE;
1560 }
1561 elf_section_data (sec)->sreloc = sreloc;
1562 }
1563
1564 /* If this is a global symbol, we count the number of
1565 relocations we need for this symbol. */
1566 if (h != NULL)
1567 head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
1568 else
1569 {
1570 /* Track dynamic relocs needed for local syms too.
1571 We really need local syms available to do this
1572 easily. Oh well. */
1573
1574 asection *s;
1575 Elf_Internal_Sym *isym;
1576 void *vpp;
1577
1578 isym = bfd_sym_from_r_symndx (&htab->sym_sec,
1579 abfd, r_symndx);
1580 if (isym == NULL)
1581 return FALSE;
1582
1583 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1584 if (s == NULL)
1585 return FALSE;
1586
1587 vpp = &elf_section_data (s)->local_dynrel;
1588 head = (struct elf_or1k_dyn_relocs **) vpp;
1589 }
1590
1591 p = *head;
1592 if (p == NULL || p->sec != sec)
1593 {
1594 bfd_size_type amt = sizeof *p;
1595 p = ((struct elf_or1k_dyn_relocs *)
1596 bfd_alloc (htab->root.dynobj, amt));
1597 if (p == NULL)
1598 return FALSE;
1599 p->next = *head;
1600 *head = p;
1601 p->sec = sec;
1602 p->count = 0;
1603 p->pc_count = 0;
1604 }
1605
1606 p->count += 1;
1607 if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
1608 p->pc_count += 1;
1609 }
1610 }
1611 break;
1612 }
1613 }
1614
1615 return TRUE;
1616 }
1617
1618 /* Finish up the dynamic sections. */
1619
1620 static bfd_boolean
1621 or1k_elf_finish_dynamic_sections (bfd *output_bfd,
1622 struct bfd_link_info *info)
1623 {
1624 bfd *dynobj;
1625 asection *sdyn, *sgot;
1626 struct elf_or1k_link_hash_table *htab;
1627
1628 htab = or1k_elf_hash_table (info);
1629 if (htab == NULL)
1630 return FALSE;
1631
1632 dynobj = htab->root.dynobj;
1633
1634 sgot = htab->root.sgotplt;
1635 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1636
1637 if (htab->root.dynamic_sections_created)
1638 {
1639 asection *splt;
1640 Elf32_External_Dyn *dyncon, *dynconend;
1641
1642 BFD_ASSERT (sgot != NULL && sdyn != NULL);
1643
1644 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1645 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
1646
1647 for (; dyncon < dynconend; dyncon++)
1648 {
1649 Elf_Internal_Dyn dyn;
1650 asection *s;
1651
1652 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1653
1654 switch (dyn.d_tag)
1655 {
1656 default:
1657 continue;
1658
1659 case DT_PLTGOT:
1660 s = htab->root.sgotplt;
1661 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1662 break;
1663
1664 case DT_JMPREL:
1665 s = htab->root.srelplt;
1666 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
1667 break;
1668
1669 case DT_PLTRELSZ:
1670 s = htab->root.srelplt;
1671 dyn.d_un.d_val = s->size;
1672 break;
1673 }
1674 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1675 }
1676
1677
1678 /* Fill in the first entry in the procedure linkage table. */
1679 splt = htab->root.splt;
1680 if (splt && splt->size > 0)
1681 {
1682 if (bfd_link_pic (info))
1683 {
1684 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
1685 splt->contents);
1686 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
1687 splt->contents + 4);
1688 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
1689 splt->contents + 8);
1690 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
1691 splt->contents + 12);
1692 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
1693 splt->contents + 16);
1694 }
1695 else
1696 {
1697 unsigned long addr;
1698 /* addr = .got + 4 */
1699 addr = sgot->output_section->vma + sgot->output_offset + 4;
1700 bfd_put_32 (output_bfd,
1701 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
1702 splt->contents);
1703 bfd_put_32 (output_bfd,
1704 PLT0_ENTRY_WORD1 | (addr & 0xffff),
1705 splt->contents + 4);
1706 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
1707 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
1708 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
1709 }
1710
1711 elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
1712 }
1713 }
1714
1715 /* Set the first entry in the global offset table to the address of
1716 the dynamic section. */
1717 if (sgot && sgot->size > 0)
1718 {
1719 if (sdyn == NULL)
1720 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1721 else
1722 bfd_put_32 (output_bfd,
1723 sdyn->output_section->vma + sdyn->output_offset,
1724 sgot->contents);
1725 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1726 }
1727
1728 if (htab->root.sgot && htab->root.sgot->size > 0)
1729 elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
1730
1731 return TRUE;
1732 }
1733
1734 /* Finish up dynamic symbol handling. We set the contents of various
1735 dynamic sections here. */
1736
1737 static bfd_boolean
1738 or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
1739 struct bfd_link_info *info,
1740 struct elf_link_hash_entry *h,
1741 Elf_Internal_Sym *sym)
1742 {
1743 struct elf_or1k_link_hash_table *htab;
1744 bfd_byte *loc;
1745
1746 htab = or1k_elf_hash_table (info);
1747 if (htab == NULL)
1748 return FALSE;
1749
1750 if (h->plt.offset != (bfd_vma) -1)
1751 {
1752 asection *splt;
1753 asection *sgot;
1754 asection *srela;
1755
1756 bfd_vma plt_index;
1757 bfd_vma got_offset;
1758 bfd_vma got_addr;
1759 Elf_Internal_Rela rela;
1760
1761 /* This symbol has an entry in the procedure linkage table. Set
1762 it up. */
1763 BFD_ASSERT (h->dynindx != -1);
1764
1765 splt = htab->root.splt;
1766 sgot = htab->root.sgotplt;
1767 srela = htab->root.srelplt;
1768 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
1769
1770 /* Get the index in the procedure linkage table which
1771 corresponds to this symbol. This is the index of this symbol
1772 in all the symbols for which we are making plt entries. The
1773 first entry in the procedure linkage table is reserved. */
1774 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
1775
1776 /* Get the offset into the .got table of the entry that
1777 corresponds to this function. Each .got entry is 4 bytes.
1778 The first three are reserved. */
1779 got_offset = (plt_index + 3) * 4;
1780 got_addr = got_offset;
1781
1782 /* Fill in the entry in the procedure linkage table. */
1783 if (! bfd_link_pic (info))
1784 {
1785 got_addr += htab->root.sgotplt->output_section->vma
1786 + htab->root.sgotplt->output_offset;
1787 bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
1788 splt->contents + h->plt.offset);
1789 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
1790 splt->contents + h->plt.offset + 4);
1791 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
1792 splt->contents + h->plt.offset + 8);
1793 bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
1794 splt->contents + h->plt.offset + 12);
1795 bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
1796 | plt_index * sizeof (Elf32_External_Rela),
1797 splt->contents + h->plt.offset + 16);
1798 }
1799 else
1800 {
1801 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
1802 splt->contents + h->plt.offset);
1803 bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
1804 | plt_index * sizeof (Elf32_External_Rela),
1805 splt->contents + h->plt.offset + 4);
1806 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
1807 splt->contents + h->plt.offset + 8);
1808 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
1809 splt->contents + h->plt.offset + 12);
1810 bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
1811 splt->contents + h->plt.offset + 16);
1812 }
1813
1814 /* Fill in the entry in the global offset table. */
1815 bfd_put_32 (output_bfd,
1816 (splt->output_section->vma
1817 + splt->output_offset), /* Same offset. */
1818 sgot->contents + got_offset);
1819
1820 /* Fill in the entry in the .rela.plt section. */
1821 rela.r_offset = (sgot->output_section->vma
1822 + sgot->output_offset
1823 + got_offset);
1824 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
1825 rela.r_addend = 0;
1826 loc = srela->contents;
1827 loc += plt_index * sizeof (Elf32_External_Rela);
1828 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1829
1830 if (!h->def_regular)
1831 {
1832 /* Mark the symbol as undefined, rather than as defined in
1833 the .plt section. Leave the value alone. */
1834 sym->st_shndx = SHN_UNDEF;
1835 }
1836
1837 }
1838
1839 if (h->got.offset != (bfd_vma) -1
1840 && (h->got.offset & 2) == 0) /* Homemade TLS check. */
1841 {
1842 asection *sgot;
1843 asection *srela;
1844 Elf_Internal_Rela rela;
1845
1846 /* This symbol has an entry in the global offset table. Set it
1847 up. */
1848 sgot = htab->root.sgot;
1849 srela = htab->root.srelgot;
1850 BFD_ASSERT (sgot != NULL && srela != NULL);
1851
1852 rela.r_offset = (sgot->output_section->vma
1853 + sgot->output_offset
1854 + (h->got.offset &~ 1));
1855
1856 /* If this is a -Bsymbolic link, and the symbol is defined
1857 locally, we just want to emit a RELATIVE reloc. Likewise if
1858 the symbol was forced to be local because of a version file.
1859 The entry in the global offset table will already have been
1860 initialized in the relocate_section function. */
1861 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
1862 {
1863 rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
1864 rela.r_addend = (h->root.u.def.value
1865 + h->root.u.def.section->output_section->vma
1866 + h->root.u.def.section->output_offset);
1867 }
1868 else
1869 {
1870 BFD_ASSERT ((h->got.offset & 1) == 0);
1871 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
1872 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
1873 rela.r_addend = 0;
1874 }
1875
1876 loc = srela->contents;
1877 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
1878 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1879 ++srela->reloc_count;
1880 }
1881
1882 if (h->needs_copy)
1883 {
1884 asection *s;
1885 Elf_Internal_Rela rela;
1886
1887 /* This symbols needs a copy reloc. Set it up. */
1888 BFD_ASSERT (h->dynindx != -1
1889 && (h->root.type == bfd_link_hash_defined
1890 || h->root.type == bfd_link_hash_defweak));
1891
1892 rela.r_offset = (h->root.u.def.value
1893 + h->root.u.def.section->output_section->vma
1894 + h->root.u.def.section->output_offset);
1895 rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
1896 rela.r_addend = 0;
1897 if (h->root.u.def.section == htab->root.sdynrelro)
1898 s = htab->root.sreldynrelro;
1899 else
1900 s = htab->root.srelbss;
1901 loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
1902 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
1903 ++s->reloc_count;
1904 }
1905
1906 /* Mark some specially defined symbols as absolute. */
1907 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1908 || h == htab->root.hgot)
1909 sym->st_shndx = SHN_ABS;
1910
1911 return TRUE;
1912 }
1913
1914 static enum elf_reloc_type_class
1915 or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
1916 const asection *rel_sec ATTRIBUTE_UNUSED,
1917 const Elf_Internal_Rela *rela)
1918 {
1919 switch ((int) ELF32_R_TYPE (rela->r_info))
1920 {
1921 case R_OR1K_RELATIVE: return reloc_class_relative;
1922 case R_OR1K_JMP_SLOT: return reloc_class_plt;
1923 case R_OR1K_COPY: return reloc_class_copy;
1924 default: return reloc_class_normal;
1925 }
1926 }
1927
1928 /* Adjust a symbol defined by a dynamic object and referenced by a
1929 regular object. The current definition is in some section of the
1930 dynamic object, but we're not including those sections. We have to
1931 change the definition to something the rest of the link can
1932 understand. */
1933
1934 static bfd_boolean
1935 or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1936 struct elf_link_hash_entry *h)
1937 {
1938 struct elf_or1k_link_hash_table *htab;
1939 struct elf_or1k_link_hash_entry *eh;
1940 struct elf_or1k_dyn_relocs *p;
1941 bfd *dynobj;
1942 asection *s, *srel;
1943
1944 dynobj = elf_hash_table (info)->dynobj;
1945
1946 /* Make sure we know what is going on here. */
1947 BFD_ASSERT (dynobj != NULL
1948 && (h->needs_plt
1949 || h->u.weakdef != NULL
1950 || (h->def_dynamic
1951 && h->ref_regular
1952 && !h->def_regular)));
1953
1954 /* If this is a function, put it in the procedure linkage table. We
1955 will fill in the contents of the procedure linkage table later,
1956 when we know the address of the .got section. */
1957 if (h->type == STT_FUNC
1958 || h->needs_plt)
1959 {
1960 if (! bfd_link_pic (info)
1961 && !h->def_dynamic
1962 && !h->ref_dynamic
1963 && h->root.type != bfd_link_hash_undefweak
1964 && h->root.type != bfd_link_hash_undefined)
1965 {
1966 /* This case can occur if we saw a PLT reloc in an input
1967 file, but the symbol was never referred to by a dynamic
1968 object. In such a case, we don't actually need to build
1969 a procedure linkage table, and we can just do a PCREL
1970 reloc instead. */
1971 h->plt.offset = (bfd_vma) -1;
1972 h->needs_plt = 0;
1973 }
1974
1975 return TRUE;
1976 }
1977 else
1978 h->plt.offset = (bfd_vma) -1;
1979
1980 /* If this is a weak symbol, and there is a real definition, the
1981 processor independent code will have arranged for us to see the
1982 real definition first, and we can just use the same value. */
1983 if (h->u.weakdef != NULL)
1984 {
1985 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1986 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1987 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1988 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1989 return TRUE;
1990 }
1991
1992 /* This is a reference to a symbol defined by a dynamic object which
1993 is not a function. */
1994
1995 /* If we are creating a shared library, we must presume that the
1996 only references to the symbol are via the global offset table.
1997 For such cases we need not do anything here; the relocations will
1998 be handled correctly by relocate_section. */
1999 if (bfd_link_pic (info))
2000 return TRUE;
2001
2002 /* If there are no references to this symbol that do not use the
2003 GOT, we don't need to generate a copy reloc. */
2004 if (!h->non_got_ref)
2005 return TRUE;
2006
2007 /* If -z nocopyreloc was given, we won't generate them either. */
2008 if (info->nocopyreloc)
2009 {
2010 h->non_got_ref = 0;
2011 return TRUE;
2012 }
2013
2014 eh = (struct elf_or1k_link_hash_entry *) h;
2015 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2016 {
2017 s = p->sec->output_section;
2018 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
2019 break;
2020 }
2021
2022 /* If we didn't find any dynamic relocs in sections which needs the
2023 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2024 the copy reloc. */
2025 if (p == NULL)
2026 {
2027 h->non_got_ref = 0;
2028 return TRUE;
2029 }
2030
2031 /* We must allocate the symbol in our .dynbss section, which will
2032 become part of the .bss section of the executable. There will be
2033 an entry for this symbol in the .dynsym section. The dynamic
2034 object will contain position independent code, so all references
2035 from the dynamic object to this symbol will go through the global
2036 offset table. The dynamic linker will use the .dynsym entry to
2037 determine the address it must put in the global offset table, so
2038 both the dynamic object and the regular object will refer to the
2039 same memory location for the variable. */
2040
2041 htab = or1k_elf_hash_table (info);
2042 if (htab == NULL)
2043 return FALSE;
2044
2045 /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
2046 to copy the initial value out of the dynamic object and into the
2047 runtime process image. We need to remember the offset into the
2048 .rela.bss section we are going to use. */
2049 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2050 {
2051 s = htab->root.sdynrelro;
2052 srel = htab->root.sreldynrelro;
2053 }
2054 else
2055 {
2056 s = htab->root.sdynbss;
2057 srel = htab->root.srelbss;
2058 }
2059 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2060 {
2061 srel->size += sizeof (Elf32_External_Rela);
2062 h->needs_copy = 1;
2063 }
2064
2065 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2066 }
2067
2068 /* Allocate space in .plt, .got and associated reloc sections for
2069 dynamic relocs. */
2070
2071 static bfd_boolean
2072 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2073 {
2074 struct bfd_link_info *info;
2075 struct elf_or1k_link_hash_table *htab;
2076 struct elf_or1k_link_hash_entry *eh;
2077 struct elf_or1k_dyn_relocs *p;
2078
2079 if (h->root.type == bfd_link_hash_indirect)
2080 return TRUE;
2081
2082 info = (struct bfd_link_info *) inf;
2083 htab = or1k_elf_hash_table (info);
2084 if (htab == NULL)
2085 return FALSE;
2086
2087 eh = (struct elf_or1k_link_hash_entry *) h;
2088
2089 if (htab->root.dynamic_sections_created
2090 && h->plt.refcount > 0)
2091 {
2092 /* Make sure this symbol is output as a dynamic symbol.
2093 Undefined weak syms won't yet be marked as dynamic. */
2094 if (h->dynindx == -1
2095 && !h->forced_local)
2096 {
2097 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2098 return FALSE;
2099 }
2100
2101 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2102 {
2103 asection *s = htab->root.splt;
2104
2105 /* If this is the first .plt entry, make room for the special
2106 first entry. */
2107 if (s->size == 0)
2108 s->size = PLT_ENTRY_SIZE;
2109
2110 h->plt.offset = s->size;
2111
2112 /* If this symbol is not defined in a regular file, and we are
2113 not generating a shared library, then set the symbol to this
2114 location in the .plt. This is required to make function
2115 pointers compare as equal between the normal executable and
2116 the shared library. */
2117 if (! bfd_link_pic (info)
2118 && !h->def_regular)
2119 {
2120 h->root.u.def.section = s;
2121 h->root.u.def.value = h->plt.offset;
2122 }
2123
2124 /* Make room for this entry. */
2125 s->size += PLT_ENTRY_SIZE;
2126
2127 /* We also need to make an entry in the .got.plt section, which
2128 will be placed in the .got section by the linker script. */
2129 htab->root.sgotplt->size += 4;
2130
2131 /* We also need to make an entry in the .rel.plt section. */
2132 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
2133 }
2134 else
2135 {
2136 h->plt.offset = (bfd_vma) -1;
2137 h->needs_plt = 0;
2138 }
2139 }
2140 else
2141 {
2142 h->plt.offset = (bfd_vma) -1;
2143 h->needs_plt = 0;
2144 }
2145
2146 if (h->got.refcount > 0)
2147 {
2148 asection *s;
2149 bfd_boolean dyn;
2150 unsigned char tls_type;
2151
2152 /* Make sure this symbol is output as a dynamic symbol.
2153 Undefined weak syms won't yet be marked as dynamic. */
2154 if (h->dynindx == -1
2155 && !h->forced_local)
2156 {
2157 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2158 return FALSE;
2159 }
2160
2161 s = htab->root.sgot;
2162
2163 h->got.offset = s->size;
2164
2165 tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
2166
2167 /* TLS GD requires two GOT and two relocs. */
2168 if (tls_type == TLS_GD)
2169 s->size += 8;
2170 else
2171 s->size += 4;
2172 dyn = htab->root.dynamic_sections_created;
2173 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2174 {
2175 if (tls_type == TLS_GD)
2176 htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2177 else
2178 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
2179 }
2180 }
2181 else
2182 h->got.offset = (bfd_vma) -1;
2183
2184 if (eh->dyn_relocs == NULL)
2185 return TRUE;
2186
2187 /* In the shared -Bsymbolic case, discard space allocated for
2188 dynamic pc-relative relocs against symbols which turn out to be
2189 defined in regular objects. For the normal shared case, discard
2190 space for pc-relative relocs that have become local due to symbol
2191 visibility changes. */
2192
2193 if (bfd_link_pic (info))
2194 {
2195 if (SYMBOL_CALLS_LOCAL (info, h))
2196 {
2197 struct elf_or1k_dyn_relocs **pp;
2198
2199 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2200 {
2201 p->count -= p->pc_count;
2202 p->pc_count = 0;
2203 if (p->count == 0)
2204 *pp = p->next;
2205 else
2206 pp = &p->next;
2207 }
2208 }
2209
2210 /* Also discard relocs on undefined weak syms with non-default
2211 visibility. */
2212 if (eh->dyn_relocs != NULL
2213 && h->root.type == bfd_link_hash_undefweak)
2214 {
2215 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2216 eh->dyn_relocs = NULL;
2217
2218 /* Make sure undefined weak symbols are output as a dynamic
2219 symbol in PIEs. */
2220 else if (h->dynindx == -1
2221 && !h->forced_local)
2222 {
2223 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2224 return FALSE;
2225 }
2226 }
2227 }
2228 else
2229 {
2230 /* For the non-shared case, discard space for relocs against
2231 symbols which turn out to need copy relocs or are not
2232 dynamic. */
2233
2234 if (!h->non_got_ref
2235 && ((h->def_dynamic
2236 && !h->def_regular)
2237 || (htab->root.dynamic_sections_created
2238 && (h->root.type == bfd_link_hash_undefweak
2239 || h->root.type == bfd_link_hash_undefined))))
2240 {
2241 /* Make sure this symbol is output as a dynamic symbol.
2242 Undefined weak syms won't yet be marked as dynamic. */
2243 if (h->dynindx == -1
2244 && !h->forced_local)
2245 {
2246 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2247 return FALSE;
2248 }
2249
2250 /* If that succeeded, we know we'll be keeping all the
2251 relocs. */
2252 if (h->dynindx != -1)
2253 goto keep;
2254 }
2255
2256 eh->dyn_relocs = NULL;
2257
2258 keep: ;
2259 }
2260
2261 /* Finally, allocate space. */
2262 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2263 {
2264 asection *sreloc = elf_section_data (p->sec)->sreloc;
2265 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2266 }
2267
2268 return TRUE;
2269 }
2270
2271 /* Find any dynamic relocs that apply to read-only sections. */
2272
2273 static bfd_boolean
2274 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2275 {
2276 struct elf_or1k_link_hash_entry *eh;
2277 struct elf_or1k_dyn_relocs *p;
2278
2279 eh = (struct elf_or1k_link_hash_entry *) h;
2280 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2281 {
2282 asection *s = p->sec->output_section;
2283
2284 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2285 {
2286 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2287
2288 info->flags |= DF_TEXTREL;
2289
2290 /* Not an error, just cut short the traversal. */
2291 return FALSE;
2292 }
2293 }
2294 return TRUE;
2295 }
2296
2297 /* Set the sizes of the dynamic sections. */
2298
2299 static bfd_boolean
2300 or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2301 struct bfd_link_info *info)
2302 {
2303 struct elf_or1k_link_hash_table *htab;
2304 bfd *dynobj;
2305 asection *s;
2306 bfd_boolean relocs;
2307 bfd *ibfd;
2308
2309 htab = or1k_elf_hash_table (info);
2310 if (htab == NULL)
2311 return FALSE;
2312
2313 dynobj = htab->root.dynobj;
2314 BFD_ASSERT (dynobj != NULL);
2315
2316 if (htab->root.dynamic_sections_created)
2317 {
2318 /* Set the contents of the .interp section to the interpreter. */
2319 if (bfd_link_executable (info) && !info->nointerp)
2320 {
2321 s = bfd_get_section_by_name (dynobj, ".interp");
2322 BFD_ASSERT (s != NULL);
2323 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2324 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2325 }
2326 }
2327
2328 /* Set up .got offsets for local syms, and space for local dynamic
2329 relocs. */
2330 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2331 {
2332 bfd_signed_vma *local_got;
2333 bfd_signed_vma *end_local_got;
2334 bfd_size_type locsymcount;
2335 Elf_Internal_Shdr *symtab_hdr;
2336 unsigned char *local_tls_type;
2337 asection *srel;
2338
2339 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2340 continue;
2341
2342 for (s = ibfd->sections; s != NULL; s = s->next)
2343 {
2344 struct elf_or1k_dyn_relocs *p;
2345
2346 for (p = ((struct elf_or1k_dyn_relocs *)
2347 elf_section_data (s)->local_dynrel);
2348 p != NULL;
2349 p = p->next)
2350 {
2351 if (! bfd_is_abs_section (p->sec)
2352 && bfd_is_abs_section (p->sec->output_section))
2353 {
2354 /* Input section has been discarded, either because
2355 it is a copy of a linkonce section or due to
2356 linker script /DISCARD/, so we'll be discarding
2357 the relocs too. */
2358 }
2359 else if (p->count != 0)
2360 {
2361 srel = elf_section_data (p->sec)->sreloc;
2362 srel->size += p->count * sizeof (Elf32_External_Rela);
2363 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2364 info->flags |= DF_TEXTREL;
2365 }
2366 }
2367 }
2368
2369 local_got = elf_local_got_refcounts (ibfd);
2370 if (!local_got)
2371 continue;
2372
2373 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2374 locsymcount = symtab_hdr->sh_info;
2375 end_local_got = local_got + locsymcount;
2376 s = htab->root.sgot;
2377 srel = htab->root.srelgot;
2378 local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
2379 for (; local_got < end_local_got; ++local_got)
2380 {
2381 if (*local_got > 0)
2382 {
2383 *local_got = s->size;
2384
2385 /* TLS GD requires two GOT and two relocs. */
2386 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2387 s->size += 8;
2388 else
2389 s->size += 4;
2390 if (bfd_link_pic (info))
2391 {
2392 if (local_tls_type != NULL && *local_tls_type == TLS_GD)
2393 srel->size += 2 * sizeof (Elf32_External_Rela);
2394 else
2395 srel->size += sizeof (Elf32_External_Rela);
2396 }
2397 }
2398 else
2399
2400 *local_got = (bfd_vma) -1;
2401
2402 if (local_tls_type)
2403 ++local_tls_type;
2404 }
2405 }
2406
2407 /* Allocate global sym .plt and .got entries, and space for global
2408 sym dynamic relocs. */
2409 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2410
2411 /* We now have determined the sizes of the various dynamic sections.
2412 Allocate memory for them. */
2413 relocs = FALSE;
2414 for (s = dynobj->sections; s != NULL; s = s->next)
2415 {
2416 if ((s->flags & SEC_LINKER_CREATED) == 0)
2417 continue;
2418
2419 if (s == htab->root.splt
2420 || s == htab->root.sgot
2421 || s == htab->root.sgotplt
2422 || s == htab->root.sdynbss
2423 || s == htab->root.sdynrelro)
2424 {
2425 /* Strip this section if we don't need it; see the
2426 comment below. */
2427 }
2428 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2429 {
2430 if (s->size != 0 && s != htab->root.srelplt)
2431 relocs = TRUE;
2432
2433 /* We use the reloc_count field as a counter if we need
2434 to copy relocs into the output file. */
2435 s->reloc_count = 0;
2436 }
2437 else
2438 /* It's not one of our sections, so don't allocate space. */
2439 continue;
2440
2441 if (s->size == 0)
2442 {
2443 /* If we don't need this section, strip it from the
2444 output file. This is mostly to handle .rela.bss and
2445 .rela.plt. We must create both sections in
2446 create_dynamic_sections, because they must be created
2447 before the linker maps input sections to output
2448 sections. The linker does that before
2449 adjust_dynamic_symbol is called, and it is that
2450 function which decides whether anything needs to go
2451 into these sections. */
2452 s->flags |= SEC_EXCLUDE;
2453 continue;
2454 }
2455
2456 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2457 continue;
2458
2459 /* Allocate memory for the section contents. We use bfd_zalloc
2460 here in case unused entries are not reclaimed before the
2461 section's contents are written out. This should not happen,
2462 but this way if it does, we get a R_OR1K_NONE reloc instead
2463 of garbage. */
2464 s->contents = bfd_zalloc (dynobj, s->size);
2465
2466 if (s->contents == NULL)
2467 return FALSE;
2468 }
2469
2470 if (htab->root.dynamic_sections_created)
2471 {
2472 /* Add some entries to the .dynamic section. We fill in the
2473 values later, in or1k_elf_finish_dynamic_sections, but we
2474 must add the entries now so that we get the correct size for
2475 the .dynamic section. The DT_DEBUG entry is filled in by the
2476 dynamic linker and used by the debugger. */
2477 #define add_dynamic_entry(TAG, VAL) \
2478 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2479
2480 if (bfd_link_executable (info))
2481 {
2482 if (! add_dynamic_entry (DT_DEBUG, 0))
2483 return FALSE;
2484 }
2485
2486 if (htab->root.splt->size != 0)
2487 {
2488 if (! add_dynamic_entry (DT_PLTGOT, 0)
2489 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2490 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2491 || ! add_dynamic_entry (DT_JMPREL, 0))
2492 return FALSE;
2493 }
2494
2495 if (relocs)
2496 {
2497 if (! add_dynamic_entry (DT_RELA, 0)
2498 || ! add_dynamic_entry (DT_RELASZ, 0)
2499 || ! add_dynamic_entry (DT_RELAENT,
2500 sizeof (Elf32_External_Rela)))
2501 return FALSE;
2502
2503 /* If any dynamic relocs apply to a read-only section,
2504 then we need a DT_TEXTREL entry. */
2505 if ((info->flags & DF_TEXTREL) == 0)
2506 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2507 info);
2508
2509 if ((info->flags & DF_TEXTREL) != 0)
2510 {
2511 if (! add_dynamic_entry (DT_TEXTREL, 0))
2512 return FALSE;
2513 }
2514 }
2515 }
2516
2517 #undef add_dynamic_entry
2518 return TRUE;
2519 }
2520
2521 /* Copy the extra info we tack onto an elf_link_hash_entry. */
2522
2523 static void
2524 or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
2525 struct elf_link_hash_entry *dir,
2526 struct elf_link_hash_entry *ind)
2527 {
2528 struct elf_or1k_link_hash_entry * edir;
2529 struct elf_or1k_link_hash_entry * eind;
2530
2531 edir = (struct elf_or1k_link_hash_entry *) dir;
2532 eind = (struct elf_or1k_link_hash_entry *) ind;
2533
2534 if (eind->dyn_relocs != NULL)
2535 {
2536 if (edir->dyn_relocs != NULL)
2537 {
2538 struct elf_or1k_dyn_relocs **pp;
2539 struct elf_or1k_dyn_relocs *p;
2540
2541 /* Add reloc counts against the indirect sym to the direct sym
2542 list. Merge any entries against the same section. */
2543 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
2544 {
2545 struct elf_or1k_dyn_relocs *q;
2546
2547 for (q = edir->dyn_relocs; q != NULL; q = q->next)
2548 if (q->sec == p->sec)
2549 {
2550 q->pc_count += p->pc_count;
2551 q->count += p->count;
2552 *pp = p->next;
2553 break;
2554 }
2555 if (q == NULL)
2556 pp = &p->next;
2557 }
2558 *pp = edir->dyn_relocs;
2559 }
2560
2561 edir->dyn_relocs = eind->dyn_relocs;
2562 eind->dyn_relocs = NULL;
2563 }
2564
2565 if (ind->root.type == bfd_link_hash_indirect)
2566 {
2567 if (dir->got.refcount <= 0)
2568 {
2569 edir->tls_type = eind->tls_type;
2570 eind->tls_type = TLS_UNKNOWN;
2571 }
2572 }
2573
2574 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
2575 }
2576
2577 /* Set the right machine number. */
2578
2579 static bfd_boolean
2580 or1k_elf_object_p (bfd *abfd)
2581 {
2582 unsigned long mach = bfd_mach_or1k;
2583
2584 if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
2585 mach = bfd_mach_or1knd;
2586
2587 return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
2588 }
2589
2590 /* Store the machine number in the flags field. */
2591
2592 static void
2593 or1k_elf_final_write_processing (bfd *abfd,
2594 bfd_boolean linker ATTRIBUTE_UNUSED)
2595 {
2596 switch (bfd_get_mach (abfd))
2597 {
2598 default:
2599 case bfd_mach_or1k:
2600 break;
2601 case bfd_mach_or1knd:
2602 elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
2603 break;
2604 }
2605 }
2606
2607 static bfd_boolean
2608 or1k_elf_set_private_flags (bfd *abfd, flagword flags)
2609 {
2610 BFD_ASSERT (!elf_flags_init (abfd)
2611 || elf_elfheader (abfd)->e_flags == flags);
2612
2613 elf_elfheader (abfd)->e_flags = flags;
2614 elf_flags_init (abfd) = TRUE;
2615 return TRUE;
2616 }
2617
2618 /* Make sure all input files are consistent with respect to
2619 EF_OR1K_NODELAY flag setting. */
2620
2621 static bfd_boolean
2622 elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
2623 {
2624 bfd *obfd = info->output_bfd;
2625 flagword out_flags;
2626 flagword in_flags;
2627
2628 in_flags = elf_elfheader (ibfd)->e_flags;
2629 out_flags = elf_elfheader (obfd)->e_flags;
2630
2631 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
2632 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
2633 return TRUE;
2634
2635 if (!elf_flags_init (obfd))
2636 {
2637 elf_flags_init (obfd) = TRUE;
2638 elf_elfheader (obfd)->e_flags = in_flags;
2639
2640 return TRUE;
2641 }
2642
2643 if (in_flags == out_flags)
2644 return TRUE;
2645
2646 if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
2647 {
2648 _bfd_error_handler
2649 (_("%B: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
2650
2651 bfd_set_error (bfd_error_bad_value);
2652 return FALSE;
2653 }
2654
2655 return TRUE;
2656
2657 }
2658
2659 #define ELF_ARCH bfd_arch_or1k
2660 #define ELF_MACHINE_CODE EM_OR1K
2661 #define ELF_TARGET_ID OR1K_ELF_DATA
2662 #define ELF_MAXPAGESIZE 0x2000
2663
2664 #define TARGET_BIG_SYM or1k_elf32_vec
2665 #define TARGET_BIG_NAME "elf32-or1k"
2666
2667 #define elf_info_to_howto_rel NULL
2668 #define elf_info_to_howto or1k_info_to_howto_rela
2669 #define elf_backend_relocate_section or1k_elf_relocate_section
2670 #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
2671 #define elf_backend_check_relocs or1k_elf_check_relocs
2672 #define elf_backend_reloc_type_class or1k_elf_reloc_type_class
2673 #define elf_backend_can_gc_sections 1
2674 #define elf_backend_rela_normal 1
2675
2676 #define bfd_elf32_mkobject elf_or1k_mkobject
2677
2678 #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
2679 #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
2680 #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
2681 #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
2682
2683 #define elf_backend_object_p or1k_elf_object_p
2684 #define elf_backend_final_write_processing or1k_elf_final_write_processing
2685 #define elf_backend_can_refcount 1
2686
2687 #define elf_backend_plt_readonly 1
2688 #define elf_backend_want_got_plt 1
2689 #define elf_backend_want_plt_sym 0
2690 #define elf_backend_got_header_size 12
2691 #define elf_backend_dtrel_excludes_plt 1
2692 #define elf_backend_want_dynrelro 1
2693
2694 #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
2695 #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
2696 #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
2697 #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
2698 #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
2699 #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
2700 #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
2701
2702 #include "elf32-target.h"
The GNU Binutils are a collection of binary tools.