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