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Add translations for various sub-directories
[binutils-gdb.git] / bfd / elfxx-tilegx.c
blobafa9e86add58234fb97c0cc8ded1a527d39a784c
1 /* TILE-Gx-specific support for ELF.
2 Copyright (C) 2011-2025 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilegx.h"
26 #include "opcode/tilegx.h"
27 #include "libiberty.h"
28 #include "elfxx-tilegx.h"
29
30 #define ABI_64_P(abfd) \
31 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
32
33 #define TILEGX_ELF_WORD_BYTES(htab) \
34 ((htab)->bytes_per_word)
35
36 /* The size of an external RELA relocation. */
37 #define TILEGX_ELF_RELA_BYTES(htab) \
38 ((htab)->bytes_per_rela)
39
40 /* Both 32-bit and 64-bit tilegx encode this in an identical manner,
41 so just take advantage of that. */
42 #define TILEGX_ELF_R_TYPE(r_info) \
43 ((r_info) & 0xFF)
44
45 #define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \
46 ((htab)->r_info (in_rel, index, type))
47
48 #define TILEGX_ELF_R_SYMNDX(htab, r_info) \
49 ((htab)->r_symndx(r_info))
50
51 #define TILEGX_ELF_DTPOFF_RELOC(htab) \
52 ((htab)->dtpoff_reloc)
53
54 #define TILEGX_ELF_DTPMOD_RELOC(htab) \
55 ((htab)->dtpmod_reloc)
56
57 #define TILEGX_ELF_TPOFF_RELOC(htab) \
58 ((htab)->tpoff_reloc)
59
60 #define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \
61 ((htab)->put_word (bfd, val, ptr))
62
63 /* The name of the dynamic interpreter. This is put in the .interp
64 section. */
65
66 #define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1"
67 #define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1"
68
69
70 static reloc_howto_type tilegx_elf_howto_table [] =
71 {
72 /* This reloc does nothing. */
73 HOWTO (R_TILEGX_NONE, /* type */
74 0, /* rightshift */
75 0, /* size */
76 0, /* bitsize */
77 false, /* pc_relative */
78 0, /* bitpos */
79 complain_overflow_dont, /* complain_on_overflow */
80 bfd_elf_generic_reloc, /* special_function */
81 "R_TILEGX_NONE", /* name */
82 false, /* partial_inplace */
83 0, /* src_mask */
84 0, /* dst_mask */
85 false), /* pcrel_offset */
86 #ifdef BFD64
87 /* A 64 bit absolute relocation. */
88 HOWTO (R_TILEGX_64, /* type */
89 0, /* rightshift */
90 8, /* size */
91 64, /* bitsize */
92 false, /* pc_relative */
93 0, /* bitpos */
94 complain_overflow_dont, /* complain_on_overflow */
95 bfd_elf_generic_reloc, /* special_function */
96 "R_TILEGX_64", /* name */
97 false, /* partial_inplace */
98 0, /* src_mask */
99 0xffffffffffffffffULL, /* dst_mask */
100 false), /* pcrel_offset */
101 #endif
102 /* A 32 bit absolute relocation. */
103 HOWTO (R_TILEGX_32, /* type */
104 0, /* rightshift */
105 4, /* size */
106 32, /* bitsize */
107 false, /* pc_relative */
108 0, /* bitpos */
109 complain_overflow_dont, /* complain_on_overflow */
110 bfd_elf_generic_reloc, /* special_function */
111 "R_TILEGX_32", /* name */
112 false, /* partial_inplace */
113 0, /* src_mask */
114 0xffffffff, /* dst_mask */
115 false), /* pcrel_offset */
116
117 /* A 16 bit absolute relocation. */
118 HOWTO (R_TILEGX_16, /* type */
119 0, /* rightshift */
120 2, /* size */
121 16, /* bitsize */
122 false, /* pc_relative */
123 0, /* bitpos */
124 complain_overflow_bitfield, /* complain_on_overflow */
125 bfd_elf_generic_reloc, /* special_function */
126 "R_TILEGX_16", /* name */
127 false, /* partial_inplace */
128 0, /* src_mask */
129 0xffff, /* dst_mask */
130 false), /* pcrel_offset */
131
132 /* An 8 bit absolute relocation. */
133 HOWTO (R_TILEGX_8, /* type */
134 0, /* rightshift */
135 1, /* size */
136 8, /* bitsize */
137 false, /* pc_relative */
138 0, /* bitpos */
139 complain_overflow_unsigned, /* complain_on_overflow */
140 bfd_elf_generic_reloc, /* special_function */
141 "R_TILEGX_8", /* name */
142 false, /* partial_inplace */
143 0, /* src_mask */
144 0xff, /* dst_mask */
145 false), /* pcrel_offset */
146 #ifdef BFD64
147 /* A 64 bit pc-relative relocation. */
148 HOWTO (R_TILEGX_64_PCREL,/* type */
149 0, /* rightshift */
150 8, /* size */
151 64, /* bitsize */
152 true, /* pc_relative */
153 0, /* bitpos */
154 complain_overflow_dont, /* complain_on_overflow */
155 bfd_elf_generic_reloc, /* special_function */
156 "R_TILEGX_32_PCREL", /* name */
157 false, /* partial_inplace */
158 0, /* src_mask */
159 0xffffffffffffffffULL, /* dst_mask */
160 true), /* pcrel_offset */
161 #endif
162 /* A 32 bit pc-relative relocation. */
163 HOWTO (R_TILEGX_32_PCREL,/* type */
164 0, /* rightshift */
165 4, /* size */
166 32, /* bitsize */
167 true, /* pc_relative */
168 0, /* bitpos */
169 complain_overflow_dont, /* complain_on_overflow */
170 bfd_elf_generic_reloc, /* special_function */
171 "R_TILEGX_32_PCREL", /* name */
172 false, /* partial_inplace */
173 0, /* src_mask */
174 0xffffffff, /* dst_mask */
175 true), /* pcrel_offset */
176
177 /* A 16 bit pc-relative relocation. */
178 HOWTO (R_TILEGX_16_PCREL,/* type */
179 0, /* rightshift */
180 2, /* size */
181 16, /* bitsize */
182 true, /* pc_relative */
183 0, /* bitpos */
184 complain_overflow_signed, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_TILEGX_16_PCREL", /* name */
187 false, /* partial_inplace */
188 0, /* src_mask */
189 0xffff, /* dst_mask */
190 true), /* pcrel_offset */
191
192 /* An 8 bit pc-relative relocation. */
193 HOWTO (R_TILEGX_8_PCREL, /* type */
194 0, /* rightshift */
195 1, /* size */
196 8, /* bitsize */
197 true, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_signed, /* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_TILEGX_8_PCREL",/* name */
202 false, /* partial_inplace */
203 0, /* src_mask */
204 0xff, /* dst_mask */
205 true), /* pcrel_offset */
206
207 /* A 16 bit relocation without overflow. */
208 HOWTO (R_TILEGX_HW0, /* type */
209 0, /* rightshift */
210 2, /* size */
211 16, /* bitsize */
212 false, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_dont,/* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_TILEGX_HW0", /* name */
217 false, /* partial_inplace */
218 0, /* src_mask */
219 0xffff, /* dst_mask */
220 false), /* pcrel_offset */
221
222 /* A 16 bit relocation without overflow. */
223 HOWTO (R_TILEGX_HW1, /* type */
224 16, /* rightshift */
225 2, /* size */
226 16, /* bitsize */
227 false, /* pc_relative */
228 0, /* bitpos */
229 complain_overflow_dont,/* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_TILEGX_HW1", /* name */
232 false, /* partial_inplace */
233 0, /* src_mask */
234 0xffff, /* dst_mask */
235 false), /* pcrel_offset */
236
237 /* A 16 bit relocation without overflow. */
238 HOWTO (R_TILEGX_HW2, /* type */
239 32, /* rightshift */
240 2, /* size */
241 16, /* bitsize */
242 false, /* pc_relative */
243 0, /* bitpos */
244 complain_overflow_dont,/* complain_on_overflow */
245 bfd_elf_generic_reloc, /* special_function */
246 "R_TILEGX_HW2", /* name */
247 false, /* partial_inplace */
248 0, /* src_mask */
249 0xffff, /* dst_mask */
250 false), /* pcrel_offset */
251
252 /* A 16 bit relocation without overflow. */
253 HOWTO (R_TILEGX_HW3, /* type */
254 48, /* rightshift */
255 2, /* size */
256 16, /* bitsize */
257 false, /* pc_relative */
258 0, /* bitpos */
259 complain_overflow_dont,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_TILEGX_HW3", /* name */
262 false, /* partial_inplace */
263 0, /* src_mask */
264 0xffff, /* dst_mask */
265 false), /* pcrel_offset */
266
267 /* A 16 bit relocation with overflow. */
268 HOWTO (R_TILEGX_HW0_LAST, /* type */
269 0, /* rightshift */
270 2, /* size */
271 16, /* bitsize */
272 false, /* pc_relative */
273 0, /* bitpos */
274 complain_overflow_signed,/* complain_on_overflow */
275 bfd_elf_generic_reloc, /* special_function */
276 "R_TILEGX_HW0_LAST", /* name */
277 false, /* partial_inplace */
278 0, /* src_mask */
279 0xffff, /* dst_mask */
280 false), /* pcrel_offset */
281
282 /* A 16 bit relocation with overflow. */
283 HOWTO (R_TILEGX_HW1_LAST, /* type */
284 16, /* rightshift */
285 2, /* size */
286 16, /* bitsize */
287 false, /* pc_relative */
288 0, /* bitpos */
289 complain_overflow_signed,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_TILEGX_HW1_LAST", /* name */
292 false, /* partial_inplace */
293 0, /* src_mask */
294 0xffff, /* dst_mask */
295 false), /* pcrel_offset */
296
297 /* A 16 bit relocation with overflow. */
298 HOWTO (R_TILEGX_HW2_LAST, /* type */
299 32, /* rightshift */
300 2, /* size */
301 16, /* bitsize */
302 false, /* pc_relative */
303 0, /* bitpos */
304 complain_overflow_signed,/* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_TILEGX_HW2_LAST", /* name */
307 false, /* partial_inplace */
308 0, /* src_mask */
309 0xffff, /* dst_mask */
310 false), /* pcrel_offset */
311
312 HOWTO (R_TILEGX_COPY, /* type */
313 0, /* rightshift */
314 0, /* size */
315 0, /* bitsize */
316 false, /* pc_relative */
317 0, /* bitpos */
318 complain_overflow_dont, /* complain_on_overflow */
319 bfd_elf_generic_reloc, /* special_function */
320 "R_TILEGX_COPY", /* name */
321 false, /* partial_inplace */
322 0, /* src_mask */
323 0, /* dst_mask */
324 true), /* pcrel_offset */
325
326 HOWTO (R_TILEGX_GLOB_DAT, /* type */
327 0, /* rightshift */
328 0, /* size */
329 0, /* bitsize */
330 false, /* pc_relative */
331 0, /* bitpos */
332 complain_overflow_dont, /* complain_on_overflow */
333 bfd_elf_generic_reloc, /* special_function */
334 "R_TILEGX_GLOB_DAT", /* name */
335 false, /* partial_inplace */
336 0, /* src_mask */
337 0, /* dst_mask */
338 true), /* pcrel_offset */
339
340 HOWTO (R_TILEGX_JMP_SLOT, /* type */
341 0, /* rightshift */
342 0, /* size */
343 0, /* bitsize */
344 false, /* pc_relative */
345 0, /* bitpos */
346 complain_overflow_dont, /* complain_on_overflow */
347 bfd_elf_generic_reloc, /* special_function */
348 "R_TILEGX_JMP_SLOT", /* name */
349 false, /* partial_inplace */
350 0, /* src_mask */
351 0, /* dst_mask */
352 true), /* pcrel_offset */
353
354 HOWTO (R_TILEGX_RELATIVE, /* type */
355 0, /* rightshift */
356 0, /* size */
357 0, /* bitsize */
358 false, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_dont, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_TILEGX_RELATIVE", /* name */
363 false, /* partial_inplace */
364 0, /* src_mask */
365 0, /* dst_mask */
366 true), /* pcrel_offset */
367
368 HOWTO (R_TILEGX_BROFF_X1, /* type */
369 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
370 4, /* size */
371 17, /* bitsize */
372 true, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_TILEGX_BROFF_X1", /* name */
377 false, /* partial_inplace */
378 0, /* src_mask */
379 -1, /* dst_mask */
380 true), /* pcrel_offset */
381
382 HOWTO (R_TILEGX_JUMPOFF_X1, /* type */
383 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
384 4, /* size */
385 27, /* bitsize */
386 true, /* pc_relative */
387 0, /* bitpos */
388 complain_overflow_signed,/* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_TILEGX_JUMPOFF_X1", /* name */
391 false, /* partial_inplace */
392 0, /* src_mask */
393 -1, /* dst_mask */
394 true), /* pcrel_offset */
395
396 HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */
397 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
398 4, /* size */
399 27, /* bitsize */
400 true, /* pc_relative */
401 0, /* bitpos */
402 complain_overflow_signed,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_TILEGX_JUMPOFF_X1_PLT", /* name */
405 false, /* partial_inplace */
406 0, /* src_mask */
407 -1, /* dst_mask */
408 true), /* pcrel_offset */
409
410 #define TILEGX_IMM_HOWTO(name, size, bitsize) \
411 HOWTO (name, 0, size, bitsize, false, 0, \
412 complain_overflow_signed, bfd_elf_generic_reloc, \
413 #name, false, 0, -1, false)
414
415 #define TILEGX_UIMM_HOWTO(name, size, bitsize) \
416 HOWTO (name, 0, size, bitsize, false, 0, \
417 complain_overflow_unsigned, bfd_elf_generic_reloc, \
418 #name, false, 0, -1, false)
419
420 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 1, 8),
421 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0, 1, 8),
422 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1, 1, 8),
423 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1, 1, 8),
424 TILEGX_IMM_HOWTO(R_TILEGX_DEST_IMM8_X1, 1, 8),
425
426 TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 2, 14),
427 TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 2, 14),
428
429 TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 1, 6),
430 TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 1, 6),
431
432 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X0, 1, 6),
433 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X1, 1, 6),
434 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y0, 1, 6),
435 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y1, 1, 6),
436
437 #define TILEGX_IMM16_HOWTO(name, rshift) \
438 HOWTO (name, rshift, 2, 16, false, 0, \
439 complain_overflow_dont, bfd_elf_generic_reloc, \
440 #name, false, 0, 0xffff, false)
441
442 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0, 0),
443 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0, 0),
444 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1, 16),
445 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1, 16),
446 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2, 32),
447 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2, 32),
448 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3, 48),
449 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3, 48),
450
451 #define TILEGX_IMM16_HOWTO_LAST(name, rshift) \
452 HOWTO (name, rshift, 2, 16, false, 0, \
453 complain_overflow_signed, bfd_elf_generic_reloc, \
454 #name, false, 0, 0xffff, false)
455
456 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST, 0),
457 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST, 0),
458 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST, 16),
459 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST, 16),
460 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST, 32),
461 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST, 32),
462
463 /* PC-relative offsets. */
464
465 #define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \
466 HOWTO (name, rshift, 2, 16, true, 0, \
467 complain_overflow_dont, bfd_elf_generic_reloc, \
468 #name, false, 0, 0xffff, true)
469
470 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PCREL, 0),
471 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PCREL, 0),
472 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PCREL, 16),
473 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PCREL, 16),
474 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PCREL, 32),
475 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PCREL, 32),
476 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PCREL, 48),
477 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PCREL, 48),
478
479 #define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \
480 HOWTO (name, rshift, 2, 16, true, 0, \
481 complain_overflow_signed, bfd_elf_generic_reloc, \
482 #name, false, 0, 0xffff, true)
483
484 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PCREL, 0),
485 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PCREL, 0),
486 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PCREL, 16),
487 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PCREL, 16),
488 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PCREL, 32),
489 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PCREL, 32),
490
491 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0),
492 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0),
493
494 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0),
495 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0),
496 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16),
497 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16),
498 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32),
499 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32),
500
501 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
502 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
503 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
504 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
505
506 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48),
507 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48),
508
509 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
510 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
511
512 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_LE, 0),
513 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_LE, 0),
514 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE, 0),
515 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE, 0),
516 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE, 16),
517 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE, 16),
518
519 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0),
520 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0),
521 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16),
522 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16),
523 EMPTY_HOWTO (90),
524 EMPTY_HOWTO (91),
525
526 #define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \
527 HOWTO (name, rshift, 2, 16, false, 0, \
528 complain_overflow_dont, bfd_elf_generic_reloc, \
529 #name, false, 0, 0xffff, true)
530
531 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0),
532 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0),
533
534 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0),
535 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0),
536 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16),
537 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16),
538 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32),
539 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32),
540
541 #define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
542 HOWTO (name, rshift, 2, 16, false, 0, \
543 complain_overflow_signed, bfd_elf_generic_reloc, \
544 #name, false, 0, 0xffff, true)
545
546 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0),
547 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0),
548 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16),
549 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16),
550 EMPTY_HOWTO (104),
551 EMPTY_HOWTO (105),
552
553 HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, false, 0, complain_overflow_dont,
554 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
555 false, 0, 0, true),
556 HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 8, 64, false, 0, complain_overflow_bitfield,
557 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
558 false, 0, -1, true),
559 HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, false, 0, complain_overflow_dont,
560 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
561 false, 0, 0, true),
562
563 HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, false, 0, complain_overflow_dont,
564 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
565 false, 0, 0, true),
566 HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 8, 32, false, 0, complain_overflow_bitfield,
567 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
568 false, 0, -1, true),
569 HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, false, 0, complain_overflow_dont,
570 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
571 false, 0, 0, true),
572
573 HOWTO (R_TILEGX_TLS_GD_CALL, /* type */
574 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
575 4, /* size */
576 27, /* bitsize */
577 true, /* pc_relative */
578 0, /* bitpos */
579 complain_overflow_signed,/* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_TILEGX_TLS_GD_CALL", /* name */
582 false, /* partial_inplace */
583 0, /* src_mask */
584 -1, /* dst_mask */
585 true), /* pcrel_offset */
586
587 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 1, 8),
588 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 1, 8),
589 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 1, 8),
590 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 1, 8),
591 TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 1, 8),
592 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 1, 8),
593 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 1, 8),
594 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 1, 8),
595 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 1, 8),
596 };
597
598 static reloc_howto_type tilegx_elf_howto_table2 [] =
599 {
600 /* GNU extension to record C++ vtable hierarchy */
601 HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
602 0, /* rightshift */
603 8, /* size */
604 0, /* bitsize */
605 false, /* pc_relative */
606 0, /* bitpos */
607 complain_overflow_dont, /* complain_on_overflow */
608 NULL, /* special_function */
609 "R_TILEGX_GNU_VTINHERIT", /* name */
610 false, /* partial_inplace */
611 0, /* src_mask */
612 0, /* dst_mask */
613 false), /* pcrel_offset */
614
615 /* GNU extension to record C++ vtable member usage */
616 HOWTO (R_TILEGX_GNU_VTENTRY, /* type */
617 0, /* rightshift */
618 8, /* size */
619 0, /* bitsize */
620 false, /* pc_relative */
621 0, /* bitpos */
622 complain_overflow_dont, /* complain_on_overflow */
623 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
624 "R_TILEGX_GNU_VTENTRY", /* name */
625 false, /* partial_inplace */
626 0, /* src_mask */
627 0, /* dst_mask */
628 false), /* pcrel_offset */
629
630 };
631 \f
632 /* Map BFD reloc types to TILEGX ELF reloc types. */
633
634 typedef struct tilegx_reloc_map
635 {
636 bfd_reloc_code_real_type bfd_reloc_val;
637 unsigned int tilegx_reloc_val;
638 reloc_howto_type * table;
639 } reloc_map;
640
641 static const reloc_map tilegx_reloc_map [] =
642 {
643 #define TH_REMAP(bfd, tilegx) \
644 { bfd, tilegx, tilegx_elf_howto_table },
645
646 /* Standard relocations. */
647 TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE)
648 TH_REMAP (BFD_RELOC_64, R_TILEGX_64)
649 TH_REMAP (BFD_RELOC_32, R_TILEGX_32)
650 TH_REMAP (BFD_RELOC_16, R_TILEGX_16)
651 TH_REMAP (BFD_RELOC_8, R_TILEGX_8)
652 TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL)
653 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL)
654 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL)
655 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL)
656
657 #define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
658
659 /* Custom relocations. */
660 SIMPLE_REMAP (TILEGX_HW0)
661 SIMPLE_REMAP (TILEGX_HW1)
662 SIMPLE_REMAP (TILEGX_HW2)
663 SIMPLE_REMAP (TILEGX_HW3)
664 SIMPLE_REMAP (TILEGX_HW0_LAST)
665 SIMPLE_REMAP (TILEGX_HW1_LAST)
666 SIMPLE_REMAP (TILEGX_HW2_LAST)
667 SIMPLE_REMAP (TILEGX_COPY)
668 SIMPLE_REMAP (TILEGX_GLOB_DAT)
669 SIMPLE_REMAP (TILEGX_JMP_SLOT)
670 SIMPLE_REMAP (TILEGX_RELATIVE)
671 SIMPLE_REMAP (TILEGX_BROFF_X1)
672 SIMPLE_REMAP (TILEGX_JUMPOFF_X1)
673 SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT)
674 SIMPLE_REMAP (TILEGX_IMM8_X0)
675 SIMPLE_REMAP (TILEGX_IMM8_Y0)
676 SIMPLE_REMAP (TILEGX_IMM8_X1)
677 SIMPLE_REMAP (TILEGX_IMM8_Y1)
678 SIMPLE_REMAP (TILEGX_DEST_IMM8_X1)
679 SIMPLE_REMAP (TILEGX_MT_IMM14_X1)
680 SIMPLE_REMAP (TILEGX_MF_IMM14_X1)
681 SIMPLE_REMAP (TILEGX_MMSTART_X0)
682 SIMPLE_REMAP (TILEGX_MMEND_X0)
683 SIMPLE_REMAP (TILEGX_SHAMT_X0)
684 SIMPLE_REMAP (TILEGX_SHAMT_X1)
685 SIMPLE_REMAP (TILEGX_SHAMT_Y0)
686 SIMPLE_REMAP (TILEGX_SHAMT_Y1)
687 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0)
688 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0)
689 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1)
690 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1)
691 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2)
692 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2)
693 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3)
694 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3)
695 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST)
696 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST)
697 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST)
698 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST)
699 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST)
700 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST)
701 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL)
702 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL)
703 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL)
704 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL)
705 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL)
706 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL)
707 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL)
708 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL)
709 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL)
710 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL)
711 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL)
712 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL)
713 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL)
714 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
715 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
716 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
717 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL)
718 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL)
719 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL)
720 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL)
721 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL)
722 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL)
723 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
724 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
725 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
726 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
727 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL)
728 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL)
729 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
730 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
731 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE)
732 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE)
733 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE)
734 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE)
735 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE)
736 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
737 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD)
738 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD)
739 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD)
740 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
741 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
742 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
743 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL)
744 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL)
745 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL)
746 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL)
747 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL)
748 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL)
749 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
750 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
751 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
752 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE)
753
754 SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
755 SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
756 SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
757
758 SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
759 SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
760 SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
761
762 SIMPLE_REMAP (TILEGX_TLS_GD_CALL)
763 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD)
764 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD)
765 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD)
766 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD)
767 SIMPLE_REMAP (TILEGX_TLS_IE_LOAD)
768 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD)
769 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD)
770 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD)
771 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD)
772
773 #undef SIMPLE_REMAP
774 #undef TH_REMAP
775
776 { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 },
777 { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 },
778 };
779
780
781
782 /* TILEGX ELF linker hash entry. */
783
784 struct tilegx_elf_link_hash_entry
785 {
786 struct elf_link_hash_entry elf;
787
788 #define GOT_UNKNOWN 0
789 #define GOT_NORMAL 1
790 #define GOT_TLS_GD 2
791 #define GOT_TLS_IE 4
792 unsigned char tls_type;
793 };
794
795 #define tilegx_elf_hash_entry(ent) \
796 ((struct tilegx_elf_link_hash_entry *)(ent))
797
798 struct _bfd_tilegx_elf_obj_tdata
799 {
800 struct elf_obj_tdata root;
801
802 /* tls_type for each local got entry. */
803 char *local_got_tls_type;
804 };
805
806 #define _bfd_tilegx_elf_tdata(abfd) \
807 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
808
809 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
810 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
811
812 #define is_tilegx_elf(bfd) \
813 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
814 && elf_tdata (bfd) != NULL \
815 && elf_object_id (bfd) == TILEGX_ELF_DATA)
816
817 #include "elf/common.h"
818 #include "elf/internal.h"
819
820 struct tilegx_elf_link_hash_table
821 {
822 struct elf_link_hash_table elf;
823
824 int bytes_per_word;
825 int word_align_power;
826 int bytes_per_rela;
827 int dtpmod_reloc;
828 int dtpoff_reloc;
829 int tpoff_reloc;
830 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
831 bfd_vma (*r_symndx) (bfd_vma);
832 void (*put_word) (bfd *, bfd_vma, void *);
833 const char *dynamic_interpreter;
834
835 /* Whether LE transition has been disabled for some of the
836 sections. */
837 bool disable_le_transition;
838 };
839
840
841 /* Get the Tile ELF linker hash table from a link_info structure. */
842 #define tilegx_elf_hash_table(p) \
843 ((is_elf_hash_table ((p)->hash) \
844 && elf_hash_table_id (elf_hash_table (p)) == TILEGX_ELF_DATA) \
845 ? (struct tilegx_elf_link_hash_table *) (p)->hash : NULL)
846
847 #ifdef BFD64
848 static bfd_vma
849 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
850 bfd_vma rel_index,
851 bfd_vma type)
852 {
853 return ELF64_R_INFO (rel_index, type);
854 }
855
856 static bfd_vma
857 tilegx_elf_r_symndx_64 (bfd_vma r_info)
858 {
859 return ELF64_R_SYM (r_info);
860 }
861
862 static void
863 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
864 {
865 bfd_put_64 (abfd, val, ptr);
866 }
867 #endif /* BFD64 */
868
869 static bfd_vma
870 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
871 bfd_vma rel_index,
872 bfd_vma type)
873 {
874 return ELF32_R_INFO (rel_index, type);
875 }
876
877 static bfd_vma
878 tilegx_elf_r_symndx_32 (bfd_vma r_info)
879 {
880 return ELF32_R_SYM (r_info);
881 }
882
883 static void
884 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
885 {
886 bfd_put_32 (abfd, val, ptr);
887 }
888
889 reloc_howto_type *
890 tilegx_reloc_type_lookup (bfd * abfd,
891 bfd_reloc_code_real_type code)
892 {
893 unsigned int i;
894
895 for (i = ARRAY_SIZE (tilegx_reloc_map); i--;)
896 {
897 const reloc_map * entry;
898
899 entry = tilegx_reloc_map + i;
900
901 if (entry->bfd_reloc_val == code)
902 return entry->table + (entry->tilegx_reloc_val
903 - entry->table[0].type);
904 }
905
906 /* xgettext:c-format */
907 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
908 abfd, (int) code);
909 bfd_set_error (bfd_error_bad_value);
910 return NULL;
911 }
912
913 reloc_howto_type *
914 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
915 const char *r_name)
916 {
917 unsigned int i;
918
919 for (i = 0;
920 i < (sizeof (tilegx_elf_howto_table)
921 / sizeof (tilegx_elf_howto_table[0]));
922 i++)
923 if (tilegx_elf_howto_table[i].name != NULL
924 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
925 return &tilegx_elf_howto_table[i];
926
927 return NULL;
928 }
929
930 bool
931 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
932 arelent *cache_ptr,
933 Elf_Internal_Rela *dst)
934 {
935 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
936
937 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
938 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
939 else if (r_type - R_TILEGX_GNU_VTINHERIT
940 <= ((unsigned int) R_TILEGX_GNU_VTENTRY
941 - (unsigned int) R_TILEGX_GNU_VTINHERIT))
942 cache_ptr->howto
943 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
944 else
945 {
946 /* xgettext:c-format */
947 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
948 abfd, r_type);
949 bfd_set_error (bfd_error_bad_value);
950 return false;
951 }
952 return true;
953 }
954
955 typedef tilegx_bundle_bits (*tilegx_create_func)(int);
956
957 static const tilegx_create_func reloc_to_create_func[] =
958 {
959 /* The first twenty relocation types don't correspond to operands */
960 NULL,
961 NULL,
962 NULL,
963 NULL,
964 NULL,
965 NULL,
966 NULL,
967 NULL,
968 NULL,
969 NULL,
970 NULL,
971 NULL,
972 NULL,
973 NULL,
974 NULL,
975 NULL,
976 NULL,
977 NULL,
978 NULL,
979 NULL,
980
981 /* The remaining relocations are used for immediate operands */
982 create_BrOff_X1,
983 create_JumpOff_X1,
984 create_JumpOff_X1,
985 create_Imm8_X0,
986 create_Imm8_Y0,
987 create_Imm8_X1,
988 create_Imm8_Y1,
989 create_Dest_Imm8_X1,
990 create_MT_Imm14_X1,
991 create_MF_Imm14_X1,
992 create_BFStart_X0,
993 create_BFEnd_X0,
994 create_ShAmt_X0,
995 create_ShAmt_X1,
996 create_ShAmt_Y0,
997 create_ShAmt_Y1,
998 create_Imm16_X0,
999 create_Imm16_X1,
1000 create_Imm16_X0,
1001 create_Imm16_X1,
1002 create_Imm16_X0,
1003 create_Imm16_X1,
1004 create_Imm16_X0,
1005 create_Imm16_X1,
1006 create_Imm16_X0,
1007 create_Imm16_X1,
1008 create_Imm16_X0,
1009 create_Imm16_X1,
1010 create_Imm16_X0,
1011 create_Imm16_X1,
1012 create_Imm16_X0,
1013 create_Imm16_X1,
1014 create_Imm16_X0,
1015 create_Imm16_X1,
1016 create_Imm16_X0,
1017 create_Imm16_X1,
1018 create_Imm16_X0,
1019 create_Imm16_X1,
1020 create_Imm16_X0,
1021 create_Imm16_X1,
1022 create_Imm16_X0,
1023 create_Imm16_X1,
1024 create_Imm16_X0,
1025 create_Imm16_X1,
1026 create_Imm16_X0,
1027 create_Imm16_X1,
1028 create_Imm16_X0,
1029 create_Imm16_X1,
1030 create_Imm16_X0,
1031 create_Imm16_X1,
1032 create_Imm16_X0,
1033 create_Imm16_X1,
1034 create_Imm16_X0,
1035 create_Imm16_X1,
1036 create_Imm16_X0,
1037 create_Imm16_X1,
1038 create_Imm16_X0,
1039 create_Imm16_X1,
1040 create_Imm16_X0,
1041 create_Imm16_X1,
1042 create_Imm16_X0,
1043 create_Imm16_X1,
1044 create_Imm16_X0,
1045 create_Imm16_X1,
1046 create_Imm16_X0,
1047 create_Imm16_X1,
1048 create_Imm16_X0,
1049 create_Imm16_X1,
1050 create_Imm16_X0,
1051 create_Imm16_X1,
1052 NULL,
1053 NULL,
1054 create_Imm16_X0,
1055 create_Imm16_X1,
1056 create_Imm16_X0,
1057 create_Imm16_X1,
1058 create_Imm16_X0,
1059 create_Imm16_X1,
1060 create_Imm16_X0,
1061 create_Imm16_X1,
1062 create_Imm16_X0,
1063 create_Imm16_X1,
1064 create_Imm16_X0,
1065 create_Imm16_X1,
1066 };
1067
1068 static void
1069 tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1070 {
1071 const struct elf_backend_data *bed;
1072 bfd_byte *loc;
1073
1074 bed = get_elf_backend_data (abfd);
1075 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1076 bed->s->swap_reloca_out (abfd, rel, loc);
1077 }
1078
1079 /* PLT/GOT stuff */
1080
1081 /* The procedure linkage table starts with the following header:
1082
1083 ld_add r28, r27, 8
1084 ld r27, r27
1085 {
1086 jr r27
1087 info 10 ## SP not offset, return PC in LR
1088 }
1089
1090 Subsequent entries are the following, jumping to the header at the end:
1091
1092 {
1093 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1094 lnk r26
1095 }
1096 1:
1097 {
1098 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1099 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1100 }
1101 {
1102 add r28, r26, r28
1103 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1104 }
1105 {
1106 add r27, r26, r27
1107 ld r28, r28
1108 info 10 ## SP not offset, return PC in LR
1109 }
1110 {
1111 shl16insli r29, zero, MY_PLT_INDEX
1112 jr r28
1113 }
1114
1115 This code sequence lets the code at at the start of the PLT determine
1116 which PLT entry was executed by examining 'r29'.
1117
1118 Note that MY_PLT_INDEX skips over the header entries, so the first
1119 actual jump table entry has index zero.
1120
1121 If the offset fits in 16 bits,
1122
1123 lnk r26
1124 1:
1125 {
1126 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1127 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1128 }
1129 {
1130 shl16insli r29, zero, MY_PLT_INDEX
1131 ld r28, r28
1132 }
1133 {
1134 add r27, r26, r27
1135 jr r28
1136 }
1137 info 10 ## SP not offset, return PC in LR
1138
1139 For the purpose of backtracing, the procedure linkage table ends with the
1140 following tail entry:
1141
1142 info 10 ## SP not offset, return PC in LR
1143
1144 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1145 the GOT being multiples of 4 instead of 8.
1146
1147 */
1148
1149 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1150 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1151 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1152
1153 #define PLT_HEADER_SIZE \
1154 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1155 #define PLT_ENTRY_SIZE \
1156 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1157 #define PLT_TAIL_SIZE \
1158 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1159
1160 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1161
1162 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1163
1164 static const bfd_byte
1165 tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1166 {
1167 0x00, 0x30, 0x48, 0x51,
1168 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1169 0x00, 0x30, 0xbc, 0x35,
1170 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1171 0xff, 0xaf, 0x30, 0x40,
1172 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1173 };
1174
1175 static const bfd_byte
1176 tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1177 {
1178 0xdc, 0x0f, 0x00, 0x10,
1179 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1180 0xdb, 0x0f, 0x00, 0x10,
1181 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1182 0x9c, 0xc6, 0x0d, 0xd0,
1183 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1184 0x9b, 0xb6, 0xc5, 0xad,
1185 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1186 0xdd, 0x0f, 0x00, 0x70,
1187 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1188 };
1189
1190 static const bfd_byte
1191 tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1192 {
1193 0x00, 0x30, 0x48, 0x51,
1194 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1195 0x9c, 0x06, 0x00, 0x90,
1196 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1197 0xdd, 0x0f, 0x00, 0x70,
1198 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1199 0x9b, 0xb6, 0x0d, 0x50,
1200 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1201 0x00, 0x30, 0x48, 0xd1,
1202 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1203 };
1204
1205 /* Reuse an existing info 10 bundle. */
1206 static const bfd_byte *const tilegx64_plt_tail_entry =
1207 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1208
1209 static const bfd_byte
1210 tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1211 {
1212 0x00, 0x30, 0x48, 0x51,
1213 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1214 0x00, 0x30, 0xbc, 0x35,
1215 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1216 0xff, 0xaf, 0x30, 0x40,
1217 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1218 };
1219
1220 static const bfd_byte
1221 tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1222 {
1223 0xdc, 0x0f, 0x00, 0x10,
1224 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1225 0xdb, 0x0f, 0x00, 0x10,
1226 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1227 0x9c, 0xc6, 0x0d, 0xd0,
1228 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1229 0x9b, 0xb6, 0xc5, 0xad,
1230 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1231 0xdd, 0x0f, 0x00, 0x70,
1232 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1233 };
1234
1235 static const bfd_byte
1236 tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1237 {
1238 0x00, 0x30, 0x48, 0x51,
1239 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1240 0x9c, 0x06, 0x00, 0x90,
1241 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1242 0xdd, 0x0f, 0x00, 0x70,
1243 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1244 0x9b, 0xb6, 0x0d, 0x50,
1245 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1246 0x00, 0x30, 0x48, 0xd1,
1247 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1248 };
1249
1250 /* Reuse an existing info 10 bundle. */
1251 static const bfd_byte *const tilegx32_plt_tail_entry =
1252 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1253
1254 static int
1255 tilegx_plt_entry_build (bfd *output_bfd,
1256 struct tilegx_elf_link_hash_table *htab,
1257 asection *splt, asection *sgotplt,
1258 bfd_vma offset, bfd_vma *r_offset)
1259 {
1260 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1261 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1262 + GOTPLT_HEADER_SIZE (htab));
1263 tilegx_bundle_bits *pc;
1264
1265 /* Compute the distance from the got entry to the lnk. */
1266 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1267 + sgotplt->output_offset
1268 + got_offset
1269 - splt->output_section->vma
1270 - splt->output_offset
1271 - offset
1272 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1273
1274 /* Compute the distance to GOTPLT[0]. */
1275 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1276
1277 /* Check whether we can use the short plt entry with 16-bit offset. */
1278 bool short_plt_entry =
1279 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1280
1281 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1282 (ABI_64_P (output_bfd) ?
1283 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1284 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1285
1286 /* Copy the plt entry template. */
1287 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1288
1289 /* Write the immediate offsets. */
1290 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1291
1292 if (short_plt_entry)
1293 {
1294 /* { lnk r28 } */
1295 pc++;
1296
1297 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1298 *pc++ |= create_Imm16_X0 (dist_got_entry)
1299 | create_Imm16_X1 (dist_got0);
1300
1301 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1302 *pc++ |= create_Imm16_X0 (plt_index);
1303 }
1304 else
1305 {
1306 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1307 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1308
1309 /* { moveli r27, &GOTPLT[0] ;
1310 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1311 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1312 | create_Imm16_X1 (dist_got_entry);
1313
1314 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1315 *pc++ |= create_Imm16_X1 (dist_got0);
1316
1317 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1318 pc++;
1319
1320 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1321 *pc++ |= create_Imm16_X0 (plt_index);
1322 }
1323
1324 /* Set the relocation offset. */
1325 *r_offset = got_offset;
1326
1327 return plt_index;
1328 }
1329
1330 /* Create an entry in an TILEGX ELF linker hash table. */
1331
1332 static struct bfd_hash_entry *
1333 link_hash_newfunc (struct bfd_hash_entry *entry,
1334 struct bfd_hash_table *table, const char *string)
1335 {
1336 /* Allocate the structure if it has not already been allocated by a
1337 subclass. */
1338 if (entry == NULL)
1339 {
1340 entry =
1341 bfd_hash_allocate (table,
1342 sizeof (struct tilegx_elf_link_hash_entry));
1343 if (entry == NULL)
1344 return entry;
1345 }
1346
1347 /* Call the allocation method of the superclass. */
1348 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1349 if (entry != NULL)
1350 {
1351 struct tilegx_elf_link_hash_entry *eh;
1352
1353 eh = (struct tilegx_elf_link_hash_entry *) entry;
1354 eh->tls_type = GOT_UNKNOWN;
1355 }
1356
1357 return entry;
1358 }
1359
1360 /* Create a TILEGX ELF linker hash table. */
1361
1362 struct bfd_link_hash_table *
1363 tilegx_elf_link_hash_table_create (bfd *abfd)
1364 {
1365 struct tilegx_elf_link_hash_table *ret;
1366 size_t amt = sizeof (struct tilegx_elf_link_hash_table);
1367
1368 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1369 if (ret == NULL)
1370 return NULL;
1371
1372 #ifdef BFD64
1373 if (ABI_64_P (abfd))
1374 {
1375 ret->bytes_per_word = 8;
1376 ret->word_align_power = 3;
1377 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1378 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1379 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1380 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1381 ret->r_info = tilegx_elf_r_info_64;
1382 ret->r_symndx = tilegx_elf_r_symndx_64;
1383 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1384 ret->put_word = tilegx_put_word_64;
1385 }
1386 else
1387 #endif
1388 {
1389 ret->bytes_per_word = 4;
1390 ret->word_align_power = 2;
1391 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1392 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1393 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1394 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1395 ret->r_info = tilegx_elf_r_info_32;
1396 ret->r_symndx = tilegx_elf_r_symndx_32;
1397 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1398 ret->put_word = tilegx_put_word_32;
1399 }
1400
1401 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1402 sizeof (struct tilegx_elf_link_hash_entry)))
1403 {
1404 free (ret);
1405 return NULL;
1406 }
1407
1408 return &ret->elf.root;
1409 }
1410
1411 /* Create the .got section. */
1412
1413 static bool
1414 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1415 {
1416 flagword flags;
1417 asection *s, *s_got;
1418 struct elf_link_hash_entry *h;
1419 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1420 struct elf_link_hash_table *htab = elf_hash_table (info);
1421
1422 /* This function may be called more than once. */
1423 if (htab->sgot != NULL)
1424 return true;
1425
1426 flags = bed->dynamic_sec_flags;
1427
1428 s = bfd_make_section_anyway_with_flags (abfd,
1429 (bed->rela_plts_and_copies_p
1430 ? ".rela.got" : ".rel.got"),
1431 (bed->dynamic_sec_flags
1432 | SEC_READONLY));
1433 if (s == NULL
1434 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1435 return false;
1436 htab->srelgot = s;
1437
1438 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1439 if (s == NULL
1440 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1441 return false;
1442 htab->sgot = s;
1443
1444 /* The first bit of the global offset table is the header. */
1445 s->size += bed->got_header_size;
1446
1447 if (bed->want_got_plt)
1448 {
1449 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
1450 if (s == NULL
1451 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1452 return false;
1453 htab->sgotplt = s;
1454
1455 /* Reserve room for the header. */
1456 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1457 }
1458
1459 if (bed->want_got_sym)
1460 {
1461 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1462 section. We don't do this in the linker script because we don't want
1463 to define the symbol if we are not creating a global offset
1464 table. */
1465 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1466 "_GLOBAL_OFFSET_TABLE_");
1467 elf_hash_table (info)->hgot = h;
1468 if (h == NULL)
1469 return false;
1470 }
1471
1472 return true;
1473 }
1474
1475 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1476 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1477 hash table. */
1478
1479 bool
1480 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1481 struct bfd_link_info *info)
1482 {
1483 if (!tilegx_elf_create_got_section (dynobj, info))
1484 return false;
1485
1486 return _bfd_elf_create_dynamic_sections (dynobj, info);
1487 }
1488
1489 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1490
1491 void
1492 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1493 struct elf_link_hash_entry *dir,
1494 struct elf_link_hash_entry *ind)
1495 {
1496 struct tilegx_elf_link_hash_entry *edir, *eind;
1497
1498 edir = (struct tilegx_elf_link_hash_entry *) dir;
1499 eind = (struct tilegx_elf_link_hash_entry *) ind;
1500
1501 if (ind->root.type == bfd_link_hash_indirect
1502 && dir->got.refcount <= 0)
1503 {
1504 edir->tls_type = eind->tls_type;
1505 eind->tls_type = GOT_UNKNOWN;
1506 }
1507 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1508 }
1509
1510 static int
1511 tilegx_tls_translate_to_le (int r_type)
1512 {
1513 switch (r_type)
1514 {
1515 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1516 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1517 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1518
1519 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1520 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1521 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1522
1523 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1524 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1525 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1526
1527 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1528 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1529 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1530
1531 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1532 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1533 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1534
1535 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1536 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1537 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1538 }
1539 return r_type;
1540 }
1541
1542 static int
1543 tilegx_tls_translate_to_ie (int r_type)
1544 {
1545 switch (r_type)
1546 {
1547 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1548 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1549 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1550
1551 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1552 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1553 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1554
1555 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1556 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1557 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1558
1559 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1560 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1561 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1562
1563 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1564 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1565 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1566
1567 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1568 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1569 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1570 }
1571 return r_type;
1572 }
1573
1574 static int
1575 tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1576 int is_local, bool disable_le_transition)
1577 {
1578 if (!bfd_link_executable (info))
1579 return r_type;
1580
1581 if (is_local && !disable_le_transition)
1582 return tilegx_tls_translate_to_le (r_type);
1583 else
1584 return tilegx_tls_translate_to_ie (r_type);
1585 }
1586
1587 /* Look through the relocs for a section during the first phase, and
1588 allocate space in the global offset table or procedure linkage
1589 table. */
1590
1591 bool
1592 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1593 asection *sec, const Elf_Internal_Rela *relocs)
1594 {
1595 struct tilegx_elf_link_hash_table *htab;
1596 Elf_Internal_Shdr *symtab_hdr;
1597 struct elf_link_hash_entry **sym_hashes;
1598 const Elf_Internal_Rela *rel;
1599 const Elf_Internal_Rela *rel_end;
1600 asection *sreloc;
1601 int num_relocs;
1602 bool has_tls_gd_or_ie = false, has_tls_add = false;
1603
1604 if (bfd_link_relocatable (info))
1605 return true;
1606
1607 htab = tilegx_elf_hash_table (info);
1608 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1609 sym_hashes = elf_sym_hashes (abfd);
1610
1611 sreloc = NULL;
1612
1613 num_relocs = sec->reloc_count;
1614
1615 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1616
1617 if (htab->elf.dynobj == NULL)
1618 htab->elf.dynobj = abfd;
1619
1620 rel_end = relocs + num_relocs;
1621
1622 /* Check whether to do optimization to transform TLS GD/IE
1623 referehces to TLS LE. We disable it if we're linking with old
1624 TLS code sequences that do not support such optimization. Old
1625 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1626 no tls_add relocations. */
1627 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1628 {
1629 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1630 switch (r_type)
1631 {
1632 case R_TILEGX_TLS_GD_CALL:
1633 case R_TILEGX_TLS_IE_LOAD:
1634 has_tls_gd_or_ie = true;
1635 break;
1636 case R_TILEGX_IMM8_X0_TLS_ADD:
1637 case R_TILEGX_IMM8_Y0_TLS_ADD:
1638 case R_TILEGX_IMM8_X1_TLS_ADD:
1639 case R_TILEGX_IMM8_Y1_TLS_ADD:
1640 has_tls_add = true;
1641 break;
1642 }
1643 }
1644
1645 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1646 htab->disable_le_transition |= sec->sec_flg0;
1647
1648 for (rel = relocs; rel < rel_end; rel++)
1649 {
1650 unsigned int r_type;
1651 unsigned int r_symndx;
1652 struct elf_link_hash_entry *h;
1653 int tls_type;
1654
1655 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1656 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1657
1658 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1659 {
1660 /* xgettext:c-format */
1661 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1662 abfd, r_symndx);
1663 return false;
1664 }
1665
1666 if (r_symndx < symtab_hdr->sh_info)
1667 h = NULL;
1668 else
1669 {
1670 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1671 while (h->root.type == bfd_link_hash_indirect
1672 || h->root.type == bfd_link_hash_warning)
1673 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1674 }
1675
1676 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1677 sec->sec_flg0);
1678 switch (r_type)
1679 {
1680 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1681 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1682 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1683 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1684 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1685 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1686 if (!bfd_link_executable (info))
1687 goto r_tilegx_plt32;
1688 break;
1689
1690 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1691 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1692 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1693 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1694 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1695 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1696 BFD_ASSERT (bfd_link_pic (info));
1697 tls_type = GOT_TLS_GD;
1698 goto have_got_reference;
1699
1700 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1701 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1702 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1703 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1704 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1705 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1706 tls_type = GOT_TLS_IE;
1707 if (!bfd_link_executable (info))
1708 info->flags |= DF_STATIC_TLS;
1709 goto have_got_reference;
1710
1711 case R_TILEGX_IMM16_X0_HW0_GOT:
1712 case R_TILEGX_IMM16_X1_HW0_GOT:
1713 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1714 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1715 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1716 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1717 tls_type = GOT_NORMAL;
1718 /* Fall Through */
1719
1720 have_got_reference:
1721 /* This symbol requires a global offset table entry. */
1722 {
1723 int old_tls_type;
1724
1725 if (h != NULL)
1726 {
1727 h->got.refcount += 1;
1728 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1729 }
1730 else
1731 {
1732 bfd_signed_vma *local_got_refcounts;
1733
1734 /* This is a global offset table entry for a local symbol. */
1735 local_got_refcounts = elf_local_got_refcounts (abfd);
1736 if (local_got_refcounts == NULL)
1737 {
1738 bfd_size_type size;
1739
1740 size = symtab_hdr->sh_info;
1741 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1742 local_got_refcounts = ((bfd_signed_vma *)
1743 bfd_zalloc (abfd, size));
1744 if (local_got_refcounts == NULL)
1745 return false;
1746 elf_local_got_refcounts (abfd) = local_got_refcounts;
1747 _bfd_tilegx_elf_local_got_tls_type (abfd)
1748 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1749 }
1750 local_got_refcounts[r_symndx] += 1;
1751 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1752 }
1753
1754 /* If a TLS symbol is accessed using IE at least once,
1755 there is no point to use dynamic model for it. */
1756 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1757 && (old_tls_type != GOT_TLS_GD
1758 || tls_type != GOT_TLS_IE))
1759 {
1760 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1761 tls_type = old_tls_type;
1762 else
1763 {
1764 _bfd_error_handler
1765 /* xgettext:c-format */
1766 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1767 abfd, h ? h->root.root.string : "<local>");
1768 return false;
1769 }
1770 }
1771
1772 if (old_tls_type != tls_type)
1773 {
1774 if (h != NULL)
1775 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1776 else
1777 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1778 }
1779 }
1780
1781 if (htab->elf.sgot == NULL)
1782 {
1783 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1784 return false;
1785 }
1786 break;
1787
1788 case R_TILEGX_TLS_GD_CALL:
1789 if (!bfd_link_executable (info))
1790 {
1791 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1792 against __tls_get_addr. */
1793 struct bfd_link_hash_entry *bh = NULL;
1794 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1795 "__tls_get_addr", 0,
1796 bfd_und_section_ptr, 0,
1797 NULL, false, false,
1798 &bh))
1799 return false;
1800 h = (struct elf_link_hash_entry *) bh;
1801 }
1802 else
1803 break;
1804 /* Fall through */
1805
1806 case R_TILEGX_JUMPOFF_X1_PLT:
1807 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1808 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1809 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1810 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1811 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1812 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1813 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1814 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1815 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1816 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1817 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1818 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1819 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1820 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
1821 /* This symbol requires a procedure linkage table entry. We
1822 actually build the entry in adjust_dynamic_symbol,
1823 because this might be a case of linking PIC code without
1824 linking in any dynamic objects, in which case we don't
1825 need to generate a procedure linkage table after all. */
1826
1827 if (h != NULL)
1828 {
1829 h->needs_plt = 1;
1830 h->plt.refcount += 1;
1831 }
1832 break;
1833
1834 case R_TILEGX_64_PCREL:
1835 case R_TILEGX_32_PCREL:
1836 case R_TILEGX_16_PCREL:
1837 case R_TILEGX_8_PCREL:
1838 case R_TILEGX_IMM16_X0_HW0_PCREL:
1839 case R_TILEGX_IMM16_X1_HW0_PCREL:
1840 case R_TILEGX_IMM16_X0_HW1_PCREL:
1841 case R_TILEGX_IMM16_X1_HW1_PCREL:
1842 case R_TILEGX_IMM16_X0_HW2_PCREL:
1843 case R_TILEGX_IMM16_X1_HW2_PCREL:
1844 case R_TILEGX_IMM16_X0_HW3_PCREL:
1845 case R_TILEGX_IMM16_X1_HW3_PCREL:
1846 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1847 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1848 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1849 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1850 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1851 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1852 if (h != NULL)
1853 h->non_got_ref = 1;
1854
1855 if (h != NULL
1856 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1857 break;
1858 /* Fall through. */
1859
1860 case R_TILEGX_64:
1861 case R_TILEGX_32:
1862 case R_TILEGX_16:
1863 case R_TILEGX_8:
1864 case R_TILEGX_HW0:
1865 case R_TILEGX_HW1:
1866 case R_TILEGX_HW2:
1867 case R_TILEGX_HW3:
1868 case R_TILEGX_HW0_LAST:
1869 case R_TILEGX_HW1_LAST:
1870 case R_TILEGX_HW2_LAST:
1871 case R_TILEGX_COPY:
1872 case R_TILEGX_GLOB_DAT:
1873 case R_TILEGX_JMP_SLOT:
1874 case R_TILEGX_RELATIVE:
1875 case R_TILEGX_BROFF_X1:
1876 case R_TILEGX_JUMPOFF_X1:
1877 case R_TILEGX_IMM8_X0:
1878 case R_TILEGX_IMM8_Y0:
1879 case R_TILEGX_IMM8_X1:
1880 case R_TILEGX_IMM8_Y1:
1881 case R_TILEGX_DEST_IMM8_X1:
1882 case R_TILEGX_MT_IMM14_X1:
1883 case R_TILEGX_MF_IMM14_X1:
1884 case R_TILEGX_MMSTART_X0:
1885 case R_TILEGX_MMEND_X0:
1886 case R_TILEGX_SHAMT_X0:
1887 case R_TILEGX_SHAMT_X1:
1888 case R_TILEGX_SHAMT_Y0:
1889 case R_TILEGX_SHAMT_Y1:
1890 case R_TILEGX_IMM16_X0_HW0:
1891 case R_TILEGX_IMM16_X1_HW0:
1892 case R_TILEGX_IMM16_X0_HW1:
1893 case R_TILEGX_IMM16_X1_HW1:
1894 case R_TILEGX_IMM16_X0_HW2:
1895 case R_TILEGX_IMM16_X1_HW2:
1896 case R_TILEGX_IMM16_X0_HW3:
1897 case R_TILEGX_IMM16_X1_HW3:
1898 case R_TILEGX_IMM16_X0_HW0_LAST:
1899 case R_TILEGX_IMM16_X1_HW0_LAST:
1900 case R_TILEGX_IMM16_X0_HW1_LAST:
1901 case R_TILEGX_IMM16_X1_HW1_LAST:
1902 case R_TILEGX_IMM16_X0_HW2_LAST:
1903 case R_TILEGX_IMM16_X1_HW2_LAST:
1904 if (h != NULL)
1905 h->non_got_ref = 1;
1906
1907 r_tilegx_plt32:
1908 if (h != NULL && !bfd_link_pic (info))
1909 {
1910 /* We may need a .plt entry if the function this reloc
1911 refers to is in a shared lib. */
1912 h->plt.refcount += 1;
1913 }
1914
1915 /* If we are creating a shared library, and this is a reloc
1916 against a global symbol, or a non PC relative reloc
1917 against a local symbol, then we need to copy the reloc
1918 into the shared library. However, if we are linking with
1919 -Bsymbolic, we do not need to copy a reloc against a
1920 global symbol which is defined in an object we are
1921 including in the link (i.e., DEF_REGULAR is set). At
1922 this point we have not seen all the input files, so it is
1923 possible that DEF_REGULAR is not set now but will be set
1924 later (it is never cleared). In case of a weak definition,
1925 DEF_REGULAR may be cleared later by a strong definition in
1926 a shared library. We account for that possibility below by
1927 storing information in the relocs_copied field of the hash
1928 table entry. A similar situation occurs when creating
1929 shared libraries and symbol visibility changes render the
1930 symbol local.
1931
1932 If on the other hand, we are creating an executable, we
1933 may need to keep relocations for symbols satisfied by a
1934 dynamic library if we manage to avoid copy relocs for the
1935 symbol. */
1936 if ((bfd_link_pic (info)
1937 && (sec->flags & SEC_ALLOC) != 0
1938 && (! tilegx_elf_howto_table[r_type].pc_relative
1939 || (h != NULL
1940 && (! info->symbolic
1941 || h->root.type == bfd_link_hash_defweak
1942 || !h->def_regular))))
1943 || (!bfd_link_pic (info)
1944 && (sec->flags & SEC_ALLOC) != 0
1945 && h != NULL
1946 && (h->root.type == bfd_link_hash_defweak
1947 || !h->def_regular)))
1948 {
1949 struct elf_dyn_relocs *p;
1950 struct elf_dyn_relocs **head;
1951
1952 /* When creating a shared object, we must copy these
1953 relocs into the output file. We create a reloc
1954 section in dynobj and make room for the reloc. */
1955 if (sreloc == NULL)
1956 {
1957 sreloc = _bfd_elf_make_dynamic_reloc_section
1958 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
1959 /*rela?*/ true);
1960
1961 if (sreloc == NULL)
1962 return false;
1963 }
1964
1965 /* If this is a global symbol, we count the number of
1966 relocations we need for this symbol. */
1967 if (h != NULL)
1968 head = &h->dyn_relocs;
1969 else
1970 {
1971 /* Track dynamic relocs needed for local syms too.
1972 We really need local syms available to do this
1973 easily. Oh well. */
1974
1975 asection *s;
1976 void *vpp;
1977 Elf_Internal_Sym *isym;
1978
1979 isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
1980 abfd, r_symndx);
1981 if (isym == NULL)
1982 return false;
1983
1984 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1985 if (s == NULL)
1986 s = sec;
1987
1988 vpp = &elf_section_data (s)->local_dynrel;
1989 head = (struct elf_dyn_relocs **) vpp;
1990 }
1991
1992 p = *head;
1993 if (p == NULL || p->sec != sec)
1994 {
1995 size_t amt = sizeof *p;
1996 p = ((struct elf_dyn_relocs *)
1997 bfd_alloc (htab->elf.dynobj, amt));
1998 if (p == NULL)
1999 return false;
2000 p->next = *head;
2001 *head = p;
2002 p->sec = sec;
2003 p->count = 0;
2004 p->pc_count = 0;
2005 }
2006
2007 p->count += 1;
2008 if (tilegx_elf_howto_table[r_type].pc_relative)
2009 p->pc_count += 1;
2010 }
2011
2012 break;
2013
2014 case R_TILEGX_GNU_VTINHERIT:
2015 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2016 return false;
2017 break;
2018
2019 case R_TILEGX_GNU_VTENTRY:
2020 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2021 return false;
2022 break;
2023
2024 default:
2025 break;
2026 }
2027 }
2028
2029 return true;
2030 }
2031
2032 \f
2033 asection *
2034 tilegx_elf_gc_mark_hook (asection *sec,
2035 struct bfd_link_info *info,
2036 Elf_Internal_Rela *rel,
2037 struct elf_link_hash_entry *h,
2038 Elf_Internal_Sym *sym)
2039 {
2040 if (h != NULL)
2041 {
2042 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2043 {
2044 case R_TILEGX_GNU_VTINHERIT:
2045 case R_TILEGX_GNU_VTENTRY:
2046 return NULL;
2047 }
2048 }
2049
2050 /* FIXME: The test here, in check_relocs and in relocate_section
2051 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2052 if (bfd_link_pic (info))
2053 {
2054 struct bfd_link_hash_entry *bh;
2055
2056 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2057 {
2058 case R_TILEGX_TLS_GD_CALL:
2059 /* This reloc implicitly references __tls_get_addr. We know
2060 another reloc will reference the same symbol as the one
2061 on this reloc, so the real symbol and section will be
2062 gc marked when processing the other reloc. That lets
2063 us handle __tls_get_addr here. */
2064 bh = NULL;
2065 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
2066 "__tls_get_addr", 0,
2067 bfd_und_section_ptr,
2068 0, NULL, false,
2069 false, &bh))
2070 return NULL;
2071 h = (struct elf_link_hash_entry *) bh;
2072 BFD_ASSERT (h != NULL);
2073 h->mark = 1;
2074 if (h->is_weakalias)
2075 weakdef (h)->mark = 1;
2076 sym = NULL;
2077 }
2078 }
2079
2080 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2081 }
2082
2083 /* Adjust a symbol defined by a dynamic object and referenced by a
2084 regular object. The current definition is in some section of the
2085 dynamic object, but we're not including those sections. We have to
2086 change the definition to something the rest of the link can
2087 understand. */
2088
2089 bool
2090 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2091 struct elf_link_hash_entry *h)
2092 {
2093 struct tilegx_elf_link_hash_table *htab;
2094 bfd *dynobj;
2095 asection *s, *srel;
2096
2097 htab = tilegx_elf_hash_table (info);
2098 BFD_ASSERT (htab != NULL);
2099
2100 dynobj = htab->elf.dynobj;
2101
2102 /* Make sure we know what is going on here. */
2103 BFD_ASSERT (dynobj != NULL
2104 && (h->needs_plt
2105 || h->is_weakalias
2106 || (h->def_dynamic
2107 && h->ref_regular
2108 && !h->def_regular)));
2109
2110 /* If this is a function, put it in the procedure linkage table. We
2111 will fill in the contents of the procedure linkage table later
2112 (although we could actually do it here). */
2113 if (h->type == STT_FUNC || h->needs_plt)
2114 {
2115 if (h->plt.refcount <= 0
2116 || SYMBOL_CALLS_LOCAL (info, h)
2117 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2118 && h->root.type == bfd_link_hash_undefweak))
2119 {
2120 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2121 reloc in an input file, but the symbol was never referred
2122 to by a dynamic object, or if all references were garbage
2123 collected. In such a case, we don't actually need to build
2124 a procedure linkage table, and we can just do a
2125 R_TILEGX_JUMPOFF_X1 relocation instead. */
2126 h->plt.offset = (bfd_vma) -1;
2127 h->needs_plt = 0;
2128 }
2129
2130 return true;
2131 }
2132 else
2133 h->plt.offset = (bfd_vma) -1;
2134
2135 /* If this is a weak symbol, and there is a real definition, the
2136 processor independent code will have arranged for us to see the
2137 real definition first, and we can just use the same value. */
2138 if (h->is_weakalias)
2139 {
2140 struct elf_link_hash_entry *def = weakdef (h);
2141 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2142 h->root.u.def.section = def->root.u.def.section;
2143 h->root.u.def.value = def->root.u.def.value;
2144 return true;
2145 }
2146
2147 /* This is a reference to a symbol defined by a dynamic object which
2148 is not a function. */
2149
2150 /* If we are creating a shared library, we must presume that the
2151 only references to the symbol are via the global offset table.
2152 For such cases we need not do anything here; the relocations will
2153 be handled correctly by relocate_section. */
2154 if (bfd_link_pic (info))
2155 return true;
2156
2157 /* If there are no references to this symbol that do not use the
2158 GOT, we don't need to generate a copy reloc. */
2159 if (!h->non_got_ref)
2160 return true;
2161
2162 /* If -z nocopyreloc was given, we won't generate them either. */
2163 if (info->nocopyreloc)
2164 {
2165 h->non_got_ref = 0;
2166 return true;
2167 }
2168
2169 /* If we don't find any dynamic relocs in read-only sections, then
2170 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2171 if (!_bfd_elf_readonly_dynrelocs (h))
2172 {
2173 h->non_got_ref = 0;
2174 return true;
2175 }
2176
2177 /* We must allocate the symbol in our .dynbss section, which will
2178 become part of the .bss section of the executable. There will be
2179 an entry for this symbol in the .dynsym section. The dynamic
2180 object will contain position independent code, so all references
2181 from the dynamic object to this symbol will go through the global
2182 offset table. The dynamic linker will use the .dynsym entry to
2183 determine the address it must put in the global offset table, so
2184 both the dynamic object and the regular object will refer to the
2185 same memory location for the variable. */
2186
2187 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2188 to copy the initial value out of the dynamic object and into the
2189 runtime process image. We need to remember the offset into the
2190 .rel.bss section we are going to use. */
2191 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2192 {
2193 s = htab->elf.sdynrelro;
2194 srel = htab->elf.sreldynrelro;
2195 }
2196 else
2197 {
2198 s = htab->elf.sdynbss;
2199 srel = htab->elf.srelbss;
2200 }
2201 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2202 {
2203 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2204 h->needs_copy = 1;
2205 }
2206
2207 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2208 }
2209
2210 /* Allocate space in .plt, .got and associated reloc sections for
2211 dynamic relocs. */
2212
2213 static bool
2214 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2215 {
2216 struct bfd_link_info *info;
2217 struct tilegx_elf_link_hash_table *htab;
2218 struct elf_dyn_relocs *p;
2219
2220 if (h->root.type == bfd_link_hash_indirect)
2221 return true;
2222
2223 info = (struct bfd_link_info *) inf;
2224 htab = tilegx_elf_hash_table (info);
2225 BFD_ASSERT (htab != NULL);
2226
2227 if (htab->elf.dynamic_sections_created
2228 && h->plt.refcount > 0)
2229 {
2230 /* Make sure this symbol is output as a dynamic symbol.
2231 Undefined weak syms won't yet be marked as dynamic. */
2232 if (h->dynindx == -1
2233 && !h->forced_local)
2234 {
2235 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2236 return false;
2237 }
2238
2239 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2240 {
2241 asection *s = htab->elf.splt;
2242
2243 /* Allocate room for the header and tail. */
2244 if (s->size == 0)
2245 {
2246 s->size = PLT_ENTRY_SIZE;
2247 }
2248
2249 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
2250
2251 /* If this symbol is not defined in a regular file, and we are
2252 not generating a shared library, then set the symbol to this
2253 location in the .plt. This is required to make function
2254 pointers compare as equal between the normal executable and
2255 the shared library. */
2256 if (! bfd_link_pic (info)
2257 && !h->def_regular)
2258 {
2259 h->root.u.def.section = s;
2260 h->root.u.def.value = h->plt.offset;
2261 }
2262
2263 /* Make room for this entry. */
2264 s->size += PLT_ENTRY_SIZE;
2265
2266 /* We also need to make an entry in the .got.plt section. */
2267 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2268
2269 /* We also need to make an entry in the .rela.plt section. */
2270 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2271 }
2272 else
2273 {
2274 h->plt.offset = (bfd_vma) -1;
2275 h->needs_plt = 0;
2276 }
2277 }
2278 else
2279 {
2280 h->plt.offset = (bfd_vma) -1;
2281 h->needs_plt = 0;
2282 }
2283
2284 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2285 requiring no TLS entry. */
2286 if (h->got.refcount > 0
2287 && !htab->disable_le_transition
2288 && bfd_link_executable (info)
2289 && h->dynindx == -1
2290 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2291 h->got.offset = (bfd_vma) -1;
2292 else if (h->got.refcount > 0)
2293 {
2294 asection *s;
2295 bool dyn;
2296 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2297
2298 /* Make sure this symbol is output as a dynamic symbol.
2299 Undefined weak syms won't yet be marked as dynamic. */
2300 if (h->dynindx == -1
2301 && !h->forced_local)
2302 {
2303 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2304 return false;
2305 }
2306
2307 s = htab->elf.sgot;
2308 h->got.offset = s->size;
2309 s->size += TILEGX_ELF_WORD_BYTES (htab);
2310 /* TLS_GD entries need 2 consecutive GOT slots. */
2311 if (tls_type == GOT_TLS_GD)
2312 s->size += TILEGX_ELF_WORD_BYTES (htab);
2313 dyn = htab->elf.dynamic_sections_created;
2314 /* TLS_IE needs one dynamic relocation,
2315 TLS_GD needs two if local symbol and two if global. */
2316 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2317 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2318 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2319 bfd_link_pic (info),
2320 h))
2321 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2322 }
2323 else
2324 h->got.offset = (bfd_vma) -1;
2325
2326 if (h->dyn_relocs == NULL)
2327 return true;
2328
2329 /* In the shared -Bsymbolic case, discard space allocated for
2330 dynamic pc-relative relocs against symbols which turn out to be
2331 defined in regular objects. For the normal shared case, discard
2332 space for pc-relative relocs that have become local due to symbol
2333 visibility changes. */
2334
2335 if (bfd_link_pic (info))
2336 {
2337 if (SYMBOL_CALLS_LOCAL (info, h))
2338 {
2339 struct elf_dyn_relocs **pp;
2340
2341 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2342 {
2343 p->count -= p->pc_count;
2344 p->pc_count = 0;
2345 if (p->count == 0)
2346 *pp = p->next;
2347 else
2348 pp = &p->next;
2349 }
2350 }
2351
2352 /* Also discard relocs on undefined weak syms with non-default
2353 visibility. */
2354 if (h->dyn_relocs != NULL
2355 && h->root.type == bfd_link_hash_undefweak)
2356 {
2357 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2358 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2359 h->dyn_relocs = NULL;
2360
2361 /* Make sure undefined weak symbols are output as a dynamic
2362 symbol in PIEs. */
2363 else if (h->dynindx == -1
2364 && !h->forced_local)
2365 {
2366 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2367 return false;
2368 }
2369 }
2370 }
2371 else
2372 {
2373 /* For the non-shared case, discard space for relocs against
2374 symbols which turn out to need copy relocs or are not
2375 dynamic. */
2376
2377 if (!h->non_got_ref
2378 && ((h->def_dynamic
2379 && !h->def_regular)
2380 || (htab->elf.dynamic_sections_created
2381 && (h->root.type == bfd_link_hash_undefweak
2382 || h->root.type == bfd_link_hash_undefined))))
2383 {
2384 /* Make sure this symbol is output as a dynamic symbol.
2385 Undefined weak syms won't yet be marked as dynamic. */
2386 if (h->dynindx == -1
2387 && !h->forced_local)
2388 {
2389 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2390 return false;
2391 }
2392
2393 /* If that succeeded, we know we'll be keeping all the
2394 relocs. */
2395 if (h->dynindx != -1)
2396 goto keep;
2397 }
2398
2399 h->dyn_relocs = NULL;
2400
2401 keep: ;
2402 }
2403
2404 /* Finally, allocate space. */
2405 for (p = h->dyn_relocs; p != NULL; p = p->next)
2406 {
2407 asection *sreloc = elf_section_data (p->sec)->sreloc;
2408 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2409 }
2410
2411 return true;
2412 }
2413
2414 /* Return true if the dynamic symbol for a given section should be
2415 omitted when creating a shared library. */
2416
2417 bool
2418 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2419 struct bfd_link_info *info,
2420 asection *p)
2421 {
2422 /* We keep the .got section symbol so that explicit relocations
2423 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2424 can be turned into relocations against the .got symbol. */
2425 if (strcmp (p->name, ".got") == 0)
2426 return false;
2427
2428 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2429 }
2430
2431 bool
2432 tilegx_elf_late_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2433 struct bfd_link_info *info)
2434 {
2435 struct tilegx_elf_link_hash_table *htab;
2436 bfd *dynobj;
2437 asection *s;
2438 bfd *ibfd;
2439
2440 htab = tilegx_elf_hash_table (info);
2441 BFD_ASSERT (htab != NULL);
2442 dynobj = htab->elf.dynobj;
2443 if (dynobj == NULL)
2444 return true;
2445
2446 if (elf_hash_table (info)->dynamic_sections_created)
2447 {
2448 /* Set the contents of the .interp section to the interpreter. */
2449 if (bfd_link_executable (info) && !info->nointerp)
2450 {
2451 s = bfd_get_linker_section (dynobj, ".interp");
2452 BFD_ASSERT (s != NULL);
2453 s->size = strlen (htab->dynamic_interpreter) + 1;
2454 s->contents = (unsigned char *) htab->dynamic_interpreter;
2455 s->alloced = 1;
2456 }
2457 }
2458
2459 /* Set up .got offsets for local syms, and space for local dynamic
2460 relocs. */
2461 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2462 {
2463 bfd_signed_vma *local_got;
2464 bfd_signed_vma *end_local_got;
2465 char *local_tls_type;
2466 bfd_size_type locsymcount;
2467 Elf_Internal_Shdr *symtab_hdr;
2468 asection *srel;
2469
2470 if (! is_tilegx_elf (ibfd))
2471 continue;
2472
2473 for (s = ibfd->sections; s != NULL; s = s->next)
2474 {
2475 struct elf_dyn_relocs *p;
2476
2477 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2478 {
2479 if (!bfd_is_abs_section (p->sec)
2480 && bfd_is_abs_section (p->sec->output_section))
2481 {
2482 /* Input section has been discarded, either because
2483 it is a copy of a linkonce section or due to
2484 linker script /DISCARD/, so we'll be discarding
2485 the relocs too. */
2486 }
2487 else if (p->count != 0)
2488 {
2489 srel = elf_section_data (p->sec)->sreloc;
2490 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2491 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2492 {
2493 info->flags |= DF_TEXTREL;
2494
2495 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2496 p->sec->owner, p->sec);
2497 }
2498 }
2499 }
2500 }
2501
2502 local_got = elf_local_got_refcounts (ibfd);
2503 if (!local_got)
2504 continue;
2505
2506 symtab_hdr = &elf_symtab_hdr (ibfd);
2507 locsymcount = symtab_hdr->sh_info;
2508 end_local_got = local_got + locsymcount;
2509 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2510 s = htab->elf.sgot;
2511 srel = htab->elf.srelgot;
2512 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2513 {
2514 if (*local_got > 0)
2515 {
2516 *local_got = s->size;
2517 s->size += TILEGX_ELF_WORD_BYTES (htab);
2518 if (*local_tls_type == GOT_TLS_GD)
2519 s->size += TILEGX_ELF_WORD_BYTES (htab);
2520 if (bfd_link_pic (info)
2521 || *local_tls_type == GOT_TLS_GD
2522 || *local_tls_type == GOT_TLS_IE)
2523 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2524 }
2525 else
2526 *local_got = (bfd_vma) -1;
2527 }
2528 }
2529
2530 /* Allocate global sym .plt and .got entries, and space for global
2531 sym dynamic relocs. */
2532 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2533
2534 if (elf_hash_table (info)->dynamic_sections_created)
2535 {
2536 /* If the .got section is more than 0x8000 bytes, we add
2537 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2538 bit relocations have a greater chance of working. */
2539 if (htab->elf.sgot->size >= 0x8000
2540 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2541 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2542 }
2543
2544 if (htab->elf.sgotplt)
2545 {
2546 struct elf_link_hash_entry *got;
2547 got = elf_link_hash_lookup (elf_hash_table (info),
2548 "_GLOBAL_OFFSET_TABLE_",
2549 false, false, false);
2550
2551 /* Don't allocate .got.plt section if there are no GOT nor PLT
2552 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2553 if ((got == NULL
2554 || !got->ref_regular_nonweak)
2555 && (htab->elf.sgotplt->size
2556 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2557 && (htab->elf.splt == NULL
2558 || htab->elf.splt->size == 0)
2559 && (htab->elf.sgot == NULL
2560 || (htab->elf.sgot->size
2561 == get_elf_backend_data (output_bfd)->got_header_size)))
2562 htab->elf.sgotplt->size = 0;
2563 }
2564
2565 /* The check_relocs and adjust_dynamic_symbol entry points have
2566 determined the sizes of the various dynamic sections. Allocate
2567 memory for them. */
2568 for (s = dynobj->sections; s != NULL; s = s->next)
2569 {
2570 if ((s->flags & SEC_LINKER_CREATED) == 0)
2571 continue;
2572
2573 if (s == htab->elf.splt
2574 || s == htab->elf.sgot
2575 || s == htab->elf.sgotplt
2576 || s == htab->elf.sdynbss
2577 || s == htab->elf.sdynrelro)
2578 {
2579 /* Strip this section if we don't need it; see the
2580 comment below. */
2581 }
2582 else if (startswith (s->name, ".rela"))
2583 {
2584 if (s->size != 0)
2585 {
2586 /* We use the reloc_count field as a counter if we need
2587 to copy relocs into the output file. */
2588 s->reloc_count = 0;
2589 }
2590 }
2591 else
2592 {
2593 /* It's not one of our sections. */
2594 continue;
2595 }
2596
2597 if (s->size == 0)
2598 {
2599 /* If we don't need this section, strip it from the
2600 output file. This is mostly to handle .rela.bss and
2601 .rela.plt. We must create both sections in
2602 create_dynamic_sections, because they must be created
2603 before the linker maps input sections to output
2604 sections. The linker does that before
2605 adjust_dynamic_symbol is called, and it is that
2606 function which decides whether anything needs to go
2607 into these sections. */
2608 s->flags |= SEC_EXCLUDE;
2609 continue;
2610 }
2611
2612 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2613 continue;
2614
2615 /* Allocate memory for the section contents. Zero the memory
2616 for the benefit of .rela.plt, which has 4 unused entries
2617 at the beginning, and we don't want garbage. */
2618 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2619 if (s->contents == NULL)
2620 return false;
2621 s->alloced = 1;
2622 }
2623
2624 return _bfd_elf_add_dynamic_tags (output_bfd, info, true);
2625 }
2626 \f
2627 /* Return the base VMA address which should be subtracted from real addresses
2628 when resolving @dtpoff relocation.
2629 This is PT_TLS segment p_vaddr. */
2630
2631 static bfd_vma
2632 dtpoff_base (struct bfd_link_info *info)
2633 {
2634 /* If tls_sec is NULL, we should have signalled an error already. */
2635 if (elf_hash_table (info)->tls_sec == NULL)
2636 return 0;
2637 return elf_hash_table (info)->tls_sec->vma;
2638 }
2639
2640 /* Return the relocation value for @tpoff relocation. */
2641
2642 static bfd_vma
2643 tpoff (struct bfd_link_info *info, bfd_vma address)
2644 {
2645 struct elf_link_hash_table *htab = elf_hash_table (info);
2646
2647 /* If tls_sec is NULL, we should have signalled an error already. */
2648 if (htab->tls_sec == NULL)
2649 return 0;
2650
2651 return (address - htab->tls_sec->vma);
2652 }
2653
2654 /* Copy SIZE bits from FROM to TO at address ADDR. */
2655
2656 static void
2657 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2658 {
2659 int i;
2660 for (i = 0; i < size; i++)
2661 {
2662 int from_byte = (from + i) / 8;
2663 int from_bit = (from + i) % 8;
2664 int to_byte = (to + i) / 8;
2665 int to_bit = (to + i) % 8;
2666 bfd_byte to_mask = 1 << to_bit;
2667 addr[to_byte] = (addr[to_byte] & ~to_mask)
2668 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2669 }
2670 }
2671
2672 /* Replace the MASK bits in ADDR with those in INSN, for the next
2673 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2674
2675 static void
2676 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2677 const bfd_byte *insn)
2678 {
2679 int i;
2680 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2681 {
2682 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2683 }
2684 }
2685
2686 /* Mask to extract the bits corresponding to an instruction in a
2687 specific pipe of a bundle. */
2688 static const bfd_byte insn_mask_X1[] = {
2689 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2690 };
2691
2692 /* Mask to extract the bits corresponding to an instruction in a
2693 specific pipe of a bundle, minus the destination operand and the
2694 first source operand. */
2695 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2696 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2697 };
2698
2699 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2700 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2701 };
2702
2703 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2704 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2705 };
2706 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2707 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2708 };
2709
2710 /* Mask to extract the bits corresponding to an instruction in a
2711 specific pipe of a bundle, minus the register operands. */
2712 static const bfd_byte insn_mask_X0_no_operand[] = {
2713 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2714 };
2715
2716 static const bfd_byte insn_mask_X1_no_operand[] = {
2717 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2718 };
2719
2720 static const bfd_byte insn_mask_Y0_no_operand[] = {
2721 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2722 };
2723
2724 static const bfd_byte insn_mask_Y1_no_operand[] = {
2725 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2726 };
2727
2728 /* Various instructions synthesized to support tls references. */
2729
2730 /* ld r0, r0 in the X1 pipe, used for tls ie. */
2731 static const bfd_byte insn_tls_ie_ld_X1[] = {
2732 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2733 };
2734
2735 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
2736 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
2737 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
2738 };
2739
2740 /* add r0, r0, tp in various pipes, used for tls ie. */
2741 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2742 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
2743 };
2744 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2745 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
2746 };
2747
2748 /* addx r0, r0, tp in various pipes, used for tls ie. */
2749 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
2750 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
2751 };
2752 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
2753 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
2754 };
2755
2756 /* move r0, r0 in various pipes, used for tls gd. */
2757 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2758 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
2759 };
2760 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2761 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
2762 };
2763
2764 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
2765 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
2766
2767 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
2768 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
2769
2770 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
2771 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
2772
2773 /* Relocate an TILEGX ELF section.
2774
2775 The RELOCATE_SECTION function is called by the new ELF backend linker
2776 to handle the relocations for a section.
2777
2778 The relocs are always passed as Rela structures.
2779
2780 This function is responsible for adjusting the section contents as
2781 necessary, and (if generating a relocatable output file) adjusting
2782 the reloc addend as necessary.
2783
2784 This function does not have to worry about setting the reloc
2785 address or the reloc symbol index.
2786
2787 LOCAL_SYMS is a pointer to the swapped in local symbols.
2788
2789 LOCAL_SECTIONS is an array giving the section in the input file
2790 corresponding to the st_shndx field of each local symbol.
2791
2792 The global hash table entry for the global symbols can be found
2793 via elf_sym_hashes (input_bfd).
2794
2795 When generating relocatable output, this function must handle
2796 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2797 going to be the section symbol corresponding to the output
2798 section, which means that the addend must be adjusted
2799 accordingly. */
2800
2801 int
2802 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2803 bfd *input_bfd, asection *input_section,
2804 bfd_byte *contents, Elf_Internal_Rela *relocs,
2805 Elf_Internal_Sym *local_syms,
2806 asection **local_sections)
2807 {
2808 struct tilegx_elf_link_hash_table *htab;
2809 Elf_Internal_Shdr *symtab_hdr;
2810 struct elf_link_hash_entry **sym_hashes;
2811 bfd_vma *local_got_offsets;
2812 bfd_vma got_base;
2813 asection *sreloc;
2814 Elf_Internal_Rela *rel;
2815 Elf_Internal_Rela *relend;
2816 int num_relocs;
2817
2818 htab = tilegx_elf_hash_table (info);
2819 BFD_ASSERT (htab != NULL);
2820 symtab_hdr = &elf_symtab_hdr (input_bfd);
2821 sym_hashes = elf_sym_hashes (input_bfd);
2822 local_got_offsets = elf_local_got_offsets (input_bfd);
2823
2824 if (elf_hash_table (info)->hgot == NULL)
2825 got_base = 0;
2826 else
2827 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2828
2829 sreloc = elf_section_data (input_section)->sreloc;
2830
2831 rel = relocs;
2832 num_relocs = input_section->reloc_count;
2833 relend = relocs + num_relocs;
2834 for (; rel < relend; rel++)
2835 {
2836 int r_type, tls_type;
2837 bool is_tls_iele, is_tls_le;
2838 reloc_howto_type *howto;
2839 unsigned long r_symndx;
2840 struct elf_link_hash_entry *h;
2841 Elf_Internal_Sym *sym;
2842 tilegx_create_func create_func;
2843 asection *sec;
2844 bfd_vma relocation;
2845 bfd_reloc_status_type r;
2846 const char *name;
2847 bfd_vma off;
2848 bool is_plt = false;
2849 bool resolved_to_zero;
2850 bool unresolved_reloc;
2851
2852 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2853 if (r_type == R_TILEGX_GNU_VTINHERIT
2854 || r_type == R_TILEGX_GNU_VTENTRY)
2855 continue;
2856
2857 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
2858 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2859
2860 howto = tilegx_elf_howto_table + r_type;
2861
2862 /* This is a final link. */
2863 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2864 h = NULL;
2865 sym = NULL;
2866 sec = NULL;
2867 unresolved_reloc = false;
2868 if (r_symndx < symtab_hdr->sh_info)
2869 {
2870 sym = local_syms + r_symndx;
2871 sec = local_sections[r_symndx];
2872 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2873 }
2874 else
2875 {
2876 bool warned ATTRIBUTE_UNUSED;
2877 bool ignored ATTRIBUTE_UNUSED;
2878
2879 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2880 r_symndx, symtab_hdr, sym_hashes,
2881 h, sec, relocation,
2882 unresolved_reloc, warned, ignored);
2883 if (warned)
2884 {
2885 /* To avoid generating warning messages about truncated
2886 relocations, set the relocation's address to be the same as
2887 the start of this section. */
2888 if (input_section->output_section != NULL)
2889 relocation = input_section->output_section->vma;
2890 else
2891 relocation = 0;
2892 }
2893 }
2894
2895 if (sec != NULL && discarded_section (sec))
2896 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2897 rel, 1, relend, howto, 0, contents);
2898
2899 if (bfd_link_relocatable (info))
2900 continue;
2901
2902 if (h != NULL)
2903 name = h->root.root.string;
2904 else
2905 {
2906 name = (bfd_elf_string_from_elf_section
2907 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2908 if (name == NULL || *name == '\0')
2909 name = bfd_section_name (sec);
2910 }
2911
2912 switch (r_type)
2913 {
2914 case R_TILEGX_TLS_GD_CALL:
2915 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
2916 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
2917 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
2918 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
2919 case R_TILEGX_IMM8_X0_TLS_ADD:
2920 case R_TILEGX_IMM8_Y0_TLS_ADD:
2921 case R_TILEGX_IMM8_X1_TLS_ADD:
2922 case R_TILEGX_IMM8_Y1_TLS_ADD:
2923 tls_type = GOT_UNKNOWN;
2924 if (h == NULL && local_got_offsets)
2925 tls_type =
2926 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
2927 else if (h != NULL)
2928 tls_type = tilegx_elf_hash_entry(h)->tls_type;
2929
2930 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2931 is_tls_le = is_tls_iele && (!input_section->sec_flg0
2932 && bfd_link_executable (info)
2933 && (h == NULL || h->dynindx == -1));
2934
2935 if (r_type == R_TILEGX_TLS_GD_CALL)
2936 {
2937 if (is_tls_le)
2938 {
2939 /* GD -> LE */
2940 tilegx_replace_insn (contents + rel->r_offset,
2941 insn_mask_X1, insn_move_X0X1);
2942 continue;
2943 }
2944 else if (is_tls_iele)
2945 {
2946 /* GD -> IE */
2947 if (ABI_64_P (output_bfd))
2948 tilegx_replace_insn (contents + rel->r_offset,
2949 insn_mask_X1, insn_tls_ie_ld_X1);
2950 else
2951 tilegx_replace_insn (contents + rel->r_offset,
2952 insn_mask_X1, insn_tls_ie_ld4s_X1);
2953 continue;
2954 }
2955
2956 /* GD -> GD */
2957 h = (struct elf_link_hash_entry *)
2958 bfd_link_hash_lookup (info->hash, "__tls_get_addr", false,
2959 false, true);
2960 BFD_ASSERT (h != NULL);
2961 r_type = R_TILEGX_JUMPOFF_X1_PLT;
2962 howto = tilegx_elf_howto_table + r_type;
2963 }
2964 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
2965 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
2966 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
2967 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
2968 {
2969 bool is_pipe0 =
2970 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
2971 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
2972 bool is_X0X1 =
2973 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
2974 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
2975 int dest_begin = is_pipe0 ? 0 : 31;
2976 int src_begin;
2977 const bfd_byte *insn;
2978 const bfd_byte *mask = NULL;
2979
2980 if (is_tls_le)
2981 {
2982 /* 1. copy dest operand into the first source operand.
2983 2. change the opcode to "move". */
2984 src_begin = is_pipe0 ? 6 : 37;
2985 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
2986
2987 switch (r_type)
2988 {
2989 case R_TILEGX_IMM8_X0_TLS_ADD:
2990 mask = insn_mask_X0_no_dest_no_srca;
2991 break;
2992 case R_TILEGX_IMM8_X1_TLS_ADD:
2993 mask = insn_mask_X1_no_dest_no_srca;
2994 break;
2995 case R_TILEGX_IMM8_Y0_TLS_ADD:
2996 mask = insn_mask_Y0_no_dest_no_srca;
2997 break;
2998 case R_TILEGX_IMM8_Y1_TLS_ADD:
2999 mask = insn_mask_Y1_no_dest_no_srca;
3000 break;
3001 }
3002 }
3003 else
3004 {
3005 /* 1. copy dest operand into the second source operand.
3006 2. change the opcode to "add". */
3007 src_begin = is_pipe0 ? 12 : 43;
3008 if (ABI_64_P (output_bfd))
3009 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3010 else
3011 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3012
3013 switch (r_type)
3014 {
3015 case R_TILEGX_IMM8_X0_TLS_ADD:
3016 mask = insn_mask_X0_no_operand;
3017 break;
3018 case R_TILEGX_IMM8_X1_TLS_ADD:
3019 mask = insn_mask_X1_no_operand;
3020 break;
3021 case R_TILEGX_IMM8_Y0_TLS_ADD:
3022 mask = insn_mask_Y0_no_operand;
3023 break;
3024 case R_TILEGX_IMM8_Y1_TLS_ADD:
3025 mask = insn_mask_Y1_no_operand;
3026 break;
3027 }
3028 }
3029
3030 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3031 src_begin, 6);
3032 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3033
3034 continue;
3035 }
3036 else
3037 {
3038 const bfd_byte *mask = NULL;
3039 const bfd_byte *add_insn = NULL;
3040 bool is_64bit = ABI_64_P (output_bfd);
3041
3042 switch (r_type)
3043 {
3044 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3045 add_insn = is_tls_iele
3046 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3047 : insn_tls_gd_add_X0X1;
3048 mask = insn_mask_X0_no_dest_no_srca;
3049 break;
3050 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3051 add_insn = is_tls_iele
3052 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3053 : insn_tls_gd_add_X0X1;
3054 mask = insn_mask_X1_no_dest_no_srca;
3055 break;
3056 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3057 add_insn = is_tls_iele
3058 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3059 : insn_tls_gd_add_Y0Y1;
3060 mask = insn_mask_Y0_no_dest_no_srca;
3061 break;
3062 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3063 add_insn = is_tls_iele
3064 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3065 : insn_tls_gd_add_Y0Y1;
3066 mask = insn_mask_Y1_no_dest_no_srca;
3067 break;
3068 }
3069
3070 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3071
3072 continue;
3073 }
3074 break;
3075 case R_TILEGX_TLS_IE_LOAD:
3076 if (!input_section->sec_flg0
3077 && bfd_link_executable (info)
3078 && (h == NULL || h->dynindx == -1))
3079 {
3080 /* IE -> LE */
3081 tilegx_replace_insn (contents + rel->r_offset,
3082 insn_mask_X1_no_dest_no_srca,
3083 insn_move_X0X1);
3084 }
3085 else
3086 {
3087 /* IE -> IE */
3088 if (ABI_64_P (output_bfd))
3089 tilegx_replace_insn (contents + rel->r_offset,
3090 insn_mask_X1_no_dest_no_srca,
3091 insn_tls_ie_ld_X1);
3092 else
3093 tilegx_replace_insn (contents + rel->r_offset,
3094 insn_mask_X1_no_dest_no_srca,
3095 insn_tls_ie_ld4s_X1);
3096 }
3097 continue;
3098 break;
3099 default:
3100 break;
3101 }
3102
3103 resolved_to_zero = (h != NULL
3104 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
3105
3106 switch (r_type)
3107 {
3108 case R_TILEGX_IMM16_X0_HW0_GOT:
3109 case R_TILEGX_IMM16_X1_HW0_GOT:
3110 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3111 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3112 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3113 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3114 /* Relocation is to the entry for this symbol in the global
3115 offset table. */
3116 if (htab->elf.sgot == NULL)
3117 abort ();
3118
3119 if (h != NULL)
3120 {
3121 bool dyn;
3122
3123 off = h->got.offset;
3124 BFD_ASSERT (off != (bfd_vma) -1);
3125 dyn = elf_hash_table (info)->dynamic_sections_created;
3126
3127 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3128 bfd_link_pic (info),
3129 h)
3130 || (bfd_link_pic (info)
3131 && SYMBOL_REFERENCES_LOCAL (info, h)))
3132 {
3133 /* This is actually a static link, or it is a
3134 -Bsymbolic link and the symbol is defined
3135 locally, or the symbol was forced to be local
3136 because of a version file. We must initialize
3137 this entry in the global offset table. Since the
3138 offset must always be a multiple
3139 of 8 for 64-bit, we use the least significant bit
3140 to record whether we have initialized it already.
3141
3142 When doing a dynamic link, we create a .rela.got
3143 relocation entry to initialize the value. This
3144 is done in the finish_dynamic_symbol routine. */
3145 if ((off & 1) != 0)
3146 off &= ~1;
3147 else
3148 {
3149 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3150 htab->elf.sgot->contents + off);
3151 h->got.offset |= 1;
3152 }
3153 }
3154 else
3155 unresolved_reloc = false;
3156 }
3157 else
3158 {
3159 BFD_ASSERT (local_got_offsets != NULL
3160 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3161
3162 off = local_got_offsets[r_symndx];
3163
3164 /* The offset must always be a multiple of 8 on 64-bit.
3165 We use the least significant bit to record
3166 whether we have already processed this entry. */
3167 if ((off & 1) != 0)
3168 off &= ~1;
3169 else
3170 {
3171 if (bfd_link_pic (info))
3172 {
3173 asection *s;
3174 Elf_Internal_Rela outrel;
3175
3176 /* We need to generate a R_TILEGX_RELATIVE reloc
3177 for the dynamic linker. */
3178 s = htab->elf.srelgot;
3179 BFD_ASSERT (s != NULL);
3180
3181 outrel.r_offset = (htab->elf.sgot->output_section->vma
3182 + htab->elf.sgot->output_offset
3183 + off);
3184 outrel.r_info =
3185 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3186 outrel.r_addend = relocation;
3187 relocation = 0;
3188 tilegx_elf_append_rela (output_bfd, s, &outrel);
3189 }
3190
3191 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3192 htab->elf.sgot->contents + off);
3193 local_got_offsets[r_symndx] |= 1;
3194 }
3195 }
3196 relocation = off - got_base;
3197 break;
3198
3199 case R_TILEGX_JUMPOFF_X1_PLT:
3200 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3201 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3202 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3203 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3204 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3205 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3206 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3207 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3208 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3209 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3210 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3211 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3212 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3213 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
3214 /* Relocation is to the entry for this symbol in the
3215 procedure linkage table. */
3216 BFD_ASSERT (h != NULL);
3217
3218 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3219 {
3220 /* We didn't make a PLT entry for this symbol. This
3221 happens when statically linking PIC code, or when
3222 using -Bsymbolic. */
3223 break;
3224 }
3225
3226 relocation = (htab->elf.splt->output_section->vma
3227 + htab->elf.splt->output_offset
3228 + h->plt.offset);
3229 unresolved_reloc = false;
3230 break;
3231
3232 case R_TILEGX_64_PCREL:
3233 case R_TILEGX_32_PCREL:
3234 case R_TILEGX_16_PCREL:
3235 case R_TILEGX_8_PCREL:
3236 case R_TILEGX_IMM16_X0_HW0_PCREL:
3237 case R_TILEGX_IMM16_X1_HW0_PCREL:
3238 case R_TILEGX_IMM16_X0_HW1_PCREL:
3239 case R_TILEGX_IMM16_X1_HW1_PCREL:
3240 case R_TILEGX_IMM16_X0_HW2_PCREL:
3241 case R_TILEGX_IMM16_X1_HW2_PCREL:
3242 case R_TILEGX_IMM16_X0_HW3_PCREL:
3243 case R_TILEGX_IMM16_X1_HW3_PCREL:
3244 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3245 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3246 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3247 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3248 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3249 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3250 if (h != NULL
3251 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3252 break;
3253 /* Fall through. */
3254 case R_TILEGX_64:
3255 case R_TILEGX_32:
3256 case R_TILEGX_16:
3257 case R_TILEGX_8:
3258 case R_TILEGX_HW0:
3259 case R_TILEGX_HW1:
3260 case R_TILEGX_HW2:
3261 case R_TILEGX_HW3:
3262 case R_TILEGX_HW0_LAST:
3263 case R_TILEGX_HW1_LAST:
3264 case R_TILEGX_HW2_LAST:
3265 case R_TILEGX_COPY:
3266 case R_TILEGX_GLOB_DAT:
3267 case R_TILEGX_JMP_SLOT:
3268 case R_TILEGX_RELATIVE:
3269 case R_TILEGX_BROFF_X1:
3270 case R_TILEGX_JUMPOFF_X1:
3271 case R_TILEGX_IMM8_X0:
3272 case R_TILEGX_IMM8_Y0:
3273 case R_TILEGX_IMM8_X1:
3274 case R_TILEGX_IMM8_Y1:
3275 case R_TILEGX_DEST_IMM8_X1:
3276 case R_TILEGX_MT_IMM14_X1:
3277 case R_TILEGX_MF_IMM14_X1:
3278 case R_TILEGX_MMSTART_X0:
3279 case R_TILEGX_MMEND_X0:
3280 case R_TILEGX_SHAMT_X0:
3281 case R_TILEGX_SHAMT_X1:
3282 case R_TILEGX_SHAMT_Y0:
3283 case R_TILEGX_SHAMT_Y1:
3284 case R_TILEGX_IMM16_X0_HW0:
3285 case R_TILEGX_IMM16_X1_HW0:
3286 case R_TILEGX_IMM16_X0_HW1:
3287 case R_TILEGX_IMM16_X1_HW1:
3288 case R_TILEGX_IMM16_X0_HW2:
3289 case R_TILEGX_IMM16_X1_HW2:
3290 case R_TILEGX_IMM16_X0_HW3:
3291 case R_TILEGX_IMM16_X1_HW3:
3292 case R_TILEGX_IMM16_X0_HW0_LAST:
3293 case R_TILEGX_IMM16_X1_HW0_LAST:
3294 case R_TILEGX_IMM16_X0_HW1_LAST:
3295 case R_TILEGX_IMM16_X1_HW1_LAST:
3296 case R_TILEGX_IMM16_X0_HW2_LAST:
3297 case R_TILEGX_IMM16_X1_HW2_LAST:
3298 if ((input_section->flags & SEC_ALLOC) == 0)
3299 break;
3300
3301 if ((bfd_link_pic (info)
3302 && (h == NULL
3303 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3304 && !resolved_to_zero)
3305 || h->root.type != bfd_link_hash_undefweak)
3306 && (! howto->pc_relative
3307 || !SYMBOL_CALLS_LOCAL (info, h)))
3308 || (!bfd_link_pic (info)
3309 && h != NULL
3310 && h->dynindx != -1
3311 && !h->non_got_ref
3312 && ((h->def_dynamic
3313 && !h->def_regular)
3314 || h->root.type == bfd_link_hash_undefweak
3315 || h->root.type == bfd_link_hash_undefined)))
3316 {
3317 Elf_Internal_Rela outrel;
3318 bool skip, relocate = false;
3319
3320 /* When generating a shared object, these relocations
3321 are copied into the output file to be resolved at run
3322 time. */
3323
3324 BFD_ASSERT (sreloc != NULL);
3325
3326 skip = false;
3327
3328 outrel.r_offset =
3329 _bfd_elf_section_offset (output_bfd, info, input_section,
3330 rel->r_offset);
3331 if (outrel.r_offset == (bfd_vma) -1)
3332 skip = true;
3333 else if (outrel.r_offset == (bfd_vma) -2)
3334 skip = true, relocate = true;
3335 outrel.r_offset += (input_section->output_section->vma
3336 + input_section->output_offset);
3337
3338 switch (r_type)
3339 {
3340 case R_TILEGX_64_PCREL:
3341 case R_TILEGX_32_PCREL:
3342 case R_TILEGX_16_PCREL:
3343 case R_TILEGX_8_PCREL:
3344 /* If the symbol is not dynamic, we should not keep
3345 a dynamic relocation. But an .rela.* slot has been
3346 allocated for it, output R_TILEGX_NONE.
3347 FIXME: Add code tracking needed dynamic relocs as
3348 e.g. i386 has. */
3349 if (h->dynindx == -1)
3350 skip = true, relocate = true;
3351 break;
3352 }
3353
3354 if (skip)
3355 memset (&outrel, 0, sizeof outrel);
3356 /* h->dynindx may be -1 if the symbol was marked to
3357 become local. */
3358 else if (h != NULL &&
3359 h->dynindx != -1
3360 && (! is_plt
3361 || !bfd_link_pic (info)
3362 || !SYMBOLIC_BIND (info, h)
3363 || !h->def_regular))
3364 {
3365 BFD_ASSERT (h->dynindx != -1);
3366 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3367 outrel.r_addend = rel->r_addend;
3368 }
3369 else
3370 {
3371 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3372 {
3373 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3374 R_TILEGX_RELATIVE);
3375 outrel.r_addend = relocation + rel->r_addend;
3376 }
3377 else
3378 {
3379 long indx;
3380
3381 outrel.r_addend = relocation + rel->r_addend;
3382
3383 if (is_plt)
3384 sec = htab->elf.splt;
3385
3386 if (bfd_is_abs_section (sec))
3387 indx = 0;
3388 else if (sec == NULL || sec->owner == NULL)
3389 {
3390 bfd_set_error (bfd_error_bad_value);
3391 return false;
3392 }
3393 else
3394 {
3395 asection *osec;
3396
3397 /* We are turning this relocation into one
3398 against a section symbol. It would be
3399 proper to subtract the symbol's value,
3400 osec->vma, from the emitted reloc addend,
3401 but ld.so expects buggy relocs. */
3402 osec = sec->output_section;
3403 indx = elf_section_data (osec)->dynindx;
3404
3405 if (indx == 0)
3406 {
3407 osec = htab->elf.text_index_section;
3408 indx = elf_section_data (osec)->dynindx;
3409 }
3410
3411 /* FIXME: we really should be able to link non-pic
3412 shared libraries. */
3413 if (indx == 0)
3414 {
3415 BFD_FAIL ();
3416 _bfd_error_handler
3417 (_("%pB: probably compiled without -fPIC?"),
3418 input_bfd);
3419 bfd_set_error (bfd_error_bad_value);
3420 return false;
3421 }
3422 }
3423
3424 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3425 r_type);
3426 }
3427 }
3428
3429 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3430
3431 /* This reloc will be computed at runtime, so there's no
3432 need to do anything now. */
3433 if (! relocate)
3434 continue;
3435 }
3436 break;
3437
3438 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3439 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3440 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3441 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3442 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3443 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3444 if (!bfd_link_executable (info))
3445 {
3446 Elf_Internal_Rela outrel;
3447 bool skip;
3448
3449 BFD_ASSERT (sreloc != NULL);
3450 skip = false;
3451 outrel.r_offset =
3452 _bfd_elf_section_offset (output_bfd, info, input_section,
3453 rel->r_offset);
3454 if (outrel.r_offset == (bfd_vma) -1)
3455 skip = true;
3456 else if (outrel.r_offset == (bfd_vma) -2)
3457 skip = true;
3458 outrel.r_offset += (input_section->output_section->vma
3459 + input_section->output_offset);
3460 if (skip)
3461 memset (&outrel, 0, sizeof outrel);
3462 else
3463 {
3464 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3465 outrel.r_addend = relocation - dtpoff_base (info)
3466 + rel->r_addend;
3467 }
3468
3469 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3470 continue;
3471 }
3472 relocation = tpoff (info, relocation);
3473 break;
3474
3475 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3476 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3477 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3478 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3479 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3480 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3481 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3482 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3483 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3484 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3485 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3486 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3487 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3488 input_section->sec_flg0);
3489 tls_type = GOT_UNKNOWN;
3490 if (h == NULL && local_got_offsets)
3491 tls_type =
3492 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3493 else if (h != NULL)
3494 {
3495 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3496 if (bfd_link_executable (info)
3497 && h->dynindx == -1
3498 && tls_type == GOT_TLS_IE)
3499 r_type = (!input_section->sec_flg0
3500 ? tilegx_tls_translate_to_le (r_type)
3501 : tilegx_tls_translate_to_ie (r_type));
3502 }
3503
3504 if (tls_type == GOT_TLS_IE)
3505 r_type = tilegx_tls_translate_to_ie (r_type);
3506
3507 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3508 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3509 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3510 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3511 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3512 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3513 {
3514 relocation = tpoff (info, relocation);
3515 break;
3516 }
3517
3518 if (h != NULL)
3519 {
3520 off = h->got.offset;
3521 h->got.offset |= 1;
3522 }
3523 else
3524 {
3525 BFD_ASSERT (local_got_offsets != NULL);
3526 off = local_got_offsets[r_symndx];
3527 local_got_offsets[r_symndx] |= 1;
3528 }
3529
3530 if (htab->elf.sgot == NULL)
3531 abort ();
3532
3533 if ((off & 1) != 0)
3534 off &= ~1;
3535 else
3536 {
3537 Elf_Internal_Rela outrel;
3538 int indx = 0;
3539 bool need_relocs = false;
3540
3541 if (htab->elf.srelgot == NULL)
3542 abort ();
3543
3544 if (h != NULL)
3545 {
3546 bool dyn;
3547 dyn = htab->elf.dynamic_sections_created;
3548
3549 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3550 bfd_link_pic (info),
3551 h)
3552 && (!bfd_link_pic (info)
3553 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3554 {
3555 indx = h->dynindx;
3556 }
3557 }
3558
3559 /* The GOT entries have not been initialized yet. Do it
3560 now, and emit any relocations. */
3561 if ((bfd_link_pic (info) || indx != 0)
3562 && (h == NULL
3563 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3564 || h->root.type != bfd_link_hash_undefweak))
3565 need_relocs = true;
3566
3567 switch (r_type)
3568 {
3569 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3570 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3571 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3572 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3573 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3574 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3575 if (need_relocs) {
3576 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3577 htab->elf.sgot->contents + off);
3578 outrel.r_offset = (htab->elf.sgot->output_section->vma
3579 + htab->elf.sgot->output_offset + off);
3580 outrel.r_addend = 0;
3581 if (indx == 0)
3582 outrel.r_addend = relocation - dtpoff_base (info);
3583 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3584 TILEGX_ELF_TPOFF_RELOC (htab));
3585 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3586 } else {
3587 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3588 tpoff (info, relocation),
3589 htab->elf.sgot->contents + off);
3590 }
3591 break;
3592
3593 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3594 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3595 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3596 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3597 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3598 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3599 if (need_relocs) {
3600 outrel.r_offset = (htab->elf.sgot->output_section->vma
3601 + htab->elf.sgot->output_offset + off);
3602 outrel.r_addend = 0;
3603 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3604 TILEGX_ELF_DTPMOD_RELOC (htab));
3605 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3606 htab->elf.sgot->contents + off);
3607 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3608 if (indx == 0)
3609 {
3610 BFD_ASSERT (! unresolved_reloc);
3611 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3612 relocation - dtpoff_base (info),
3613 (htab->elf.sgot->contents + off +
3614 TILEGX_ELF_WORD_BYTES (htab)));
3615 }
3616 else
3617 {
3618 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3619 (htab->elf.sgot->contents + off +
3620 TILEGX_ELF_WORD_BYTES (htab)));
3621 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3622 TILEGX_ELF_DTPOFF_RELOC (htab));
3623 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3624 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3625 }
3626 }
3627
3628 else {
3629 /* If we are not emitting relocations for a
3630 general dynamic reference, then we must be in a
3631 static link or an executable link with the
3632 symbol binding locally. Mark it as belonging
3633 to module 1, the executable. */
3634 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3635 htab->elf.sgot->contents + off );
3636 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3637 relocation - dtpoff_base (info),
3638 htab->elf.sgot->contents + off +
3639 TILEGX_ELF_WORD_BYTES (htab));
3640 }
3641 break;
3642 }
3643 }
3644
3645 if (off >= (bfd_vma) -2)
3646 abort ();
3647
3648 relocation = off - got_base;
3649 unresolved_reloc = false;
3650 howto = tilegx_elf_howto_table + r_type;
3651 break;
3652
3653 default:
3654 break;
3655 }
3656
3657 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3658 because such sections are not SEC_ALLOC and thus ld.so will
3659 not process them. */
3660 if (unresolved_reloc
3661 && !((input_section->flags & SEC_DEBUGGING) != 0
3662 && h->def_dynamic)
3663 && _bfd_elf_section_offset (output_bfd, info, input_section,
3664 rel->r_offset) != (bfd_vma) -1)
3665 _bfd_error_handler
3666 /* xgettext:c-format */
3667 (_("%pB(%pA+%#" PRIx64 "): "
3668 "unresolvable %s relocation against symbol `%s'"),
3669 input_bfd,
3670 input_section,
3671 (uint64_t) rel->r_offset,
3672 howto->name,
3673 h->root.root.string);
3674
3675 r = bfd_reloc_continue;
3676
3677 /* Get the operand creation function, if any. */
3678 create_func = reloc_to_create_func[r_type];
3679 if (create_func == NULL)
3680 {
3681 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3682 contents, rel->r_offset,
3683 relocation, rel->r_addend);
3684 }
3685 else
3686 {
3687 if (howto->pc_relative)
3688 {
3689 relocation -=
3690 input_section->output_section->vma + input_section->output_offset;
3691 if (howto->pcrel_offset)
3692 relocation -= rel->r_offset;
3693 }
3694
3695 bfd_byte *data;
3696
3697 /* Add the relocation addend if any to the final target value */
3698 relocation += rel->r_addend;
3699
3700 /* Do basic range checking */
3701 r = bfd_check_overflow (howto->complain_on_overflow,
3702 howto->bitsize,
3703 howto->rightshift,
3704 TILEGX_ELF_WORD_BYTES (htab) * 8,
3705 relocation);
3706
3707 /*
3708 * Write the relocated value out into the raw section data.
3709 * Don't put a relocation out in the .rela section.
3710 */
3711 tilegx_bundle_bits mask = create_func(-1);
3712 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3713
3714 /* Only touch bytes while the mask is not 0, so we
3715 don't write to out of bounds memory if this is actually
3716 a 16-bit switch instruction. */
3717 for (data = contents + rel->r_offset; mask != 0; data++)
3718 {
3719 bfd_byte byte_mask = (bfd_byte)mask;
3720 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3721 mask >>= 8;
3722 value >>= 8;
3723 }
3724 }
3725
3726 if (r != bfd_reloc_ok)
3727 {
3728 const char *msg = NULL;
3729
3730 switch (r)
3731 {
3732 case bfd_reloc_overflow:
3733 (*info->callbacks->reloc_overflow)
3734 (info, (h ? &h->root : NULL), name, howto->name,
3735 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3736 break;
3737
3738 case bfd_reloc_undefined:
3739 (*info->callbacks->undefined_symbol)
3740 (info, name, input_bfd, input_section, rel->r_offset, true);
3741 break;
3742
3743 case bfd_reloc_outofrange:
3744 msg = _("internal error: out of range error");
3745 break;
3746
3747 case bfd_reloc_notsupported:
3748 msg = _("internal error: unsupported relocation error");
3749 break;
3750
3751 case bfd_reloc_dangerous:
3752 msg = _("internal error: dangerous relocation");
3753 break;
3754
3755 default:
3756 msg = _("internal error: unknown error");
3757 break;
3758 }
3759
3760 if (msg)
3761 (*info->callbacks->warning) (info, msg, name, input_bfd,
3762 input_section, rel->r_offset);
3763 }
3764 }
3765
3766 return true;
3767 }
3768
3769 /* Finish up dynamic symbol handling. We set the contents of various
3770 dynamic sections here. */
3771
3772 bool
3773 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
3774 struct bfd_link_info *info,
3775 struct elf_link_hash_entry *h,
3776 Elf_Internal_Sym *sym)
3777 {
3778 struct tilegx_elf_link_hash_table *htab;
3779
3780 htab = tilegx_elf_hash_table (info);
3781 BFD_ASSERT (htab != NULL);
3782
3783 if (h->plt.offset != (bfd_vma) -1)
3784 {
3785 asection *splt;
3786 asection *srela;
3787 asection *sgotplt;
3788 Elf_Internal_Rela rela;
3789 bfd_byte *loc;
3790 bfd_vma r_offset;
3791 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
3792
3793
3794 int rela_index;
3795
3796 /* This symbol has an entry in the PLT. Set it up. */
3797
3798 BFD_ASSERT (h->dynindx != -1);
3799
3800 splt = htab->elf.splt;
3801 srela = htab->elf.srelplt;
3802 sgotplt = htab->elf.sgotplt;
3803
3804 if (splt == NULL || srela == NULL)
3805 abort ();
3806
3807 /* Fill in the entry in the procedure linkage table. */
3808 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
3809 h->plt.offset, &r_offset);
3810
3811 /* Fill in the entry in the global offset table, which initially points
3812 to the beginning of the plt. */
3813 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3814 splt->output_section->vma + splt->output_offset,
3815 sgotplt->contents + r_offset);
3816
3817 /* Fill in the entry in the .rela.plt section. */
3818 rela.r_offset = (sgotplt->output_section->vma
3819 + sgotplt->output_offset
3820 + r_offset);
3821 rela.r_addend = 0;
3822 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
3823
3824 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
3825 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3826
3827 if (!h->def_regular)
3828 {
3829 /* Mark the symbol as undefined, rather than as defined in
3830 the .plt section. Leave the value alone. */
3831 sym->st_shndx = SHN_UNDEF;
3832 /* If the symbol is weak, we do need to clear the value.
3833 Otherwise, the PLT entry would provide a definition for
3834 the symbol even if the symbol wasn't defined anywhere,
3835 and so the symbol would never be NULL. */
3836 if (!h->ref_regular_nonweak)
3837 sym->st_value = 0;
3838 }
3839 }
3840
3841 if (h->got.offset != (bfd_vma) -1
3842 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3843 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3844 {
3845 asection *sgot;
3846 asection *srela;
3847 Elf_Internal_Rela rela;
3848
3849 /* This symbol has an entry in the GOT. Set it up. */
3850
3851 sgot = htab->elf.sgot;
3852 srela = htab->elf.srelgot;
3853 BFD_ASSERT (sgot != NULL && srela != NULL);
3854
3855 rela.r_offset = (sgot->output_section->vma
3856 + sgot->output_offset
3857 + (h->got.offset &~ (bfd_vma) 1));
3858
3859 /* If this is a -Bsymbolic link, and the symbol is defined
3860 locally, we just want to emit a RELATIVE reloc. Likewise if
3861 the symbol was forced to be local because of a version file.
3862 The entry in the global offset table will already have been
3863 initialized in the relocate_section function. */
3864 if (bfd_link_pic (info)
3865 && (info->symbolic || h->dynindx == -1)
3866 && h->def_regular)
3867 {
3868 asection *sec = h->root.u.def.section;
3869 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3870 rela.r_addend = (h->root.u.def.value
3871 + sec->output_section->vma
3872 + sec->output_offset);
3873 }
3874 else
3875 {
3876 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
3877 rela.r_addend = 0;
3878 }
3879
3880 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3881 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3882 tilegx_elf_append_rela (output_bfd, srela, &rela);
3883 }
3884
3885 if (h->needs_copy)
3886 {
3887 asection *s;
3888 Elf_Internal_Rela rela;
3889
3890 /* This symbols needs a copy reloc. Set it up. */
3891 BFD_ASSERT (h->dynindx != -1);
3892
3893 if (h->root.u.def.section == htab->elf.sdynrelro)
3894 s = htab->elf.sreldynrelro;
3895 else
3896 s = htab->elf.srelbss;
3897 BFD_ASSERT (s != NULL);
3898
3899 rela.r_offset = (h->root.u.def.value
3900 + h->root.u.def.section->output_section->vma
3901 + h->root.u.def.section->output_offset);
3902 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
3903 rela.r_addend = 0;
3904 tilegx_elf_append_rela (output_bfd, s, &rela);
3905 }
3906
3907 /* Mark some specially defined symbols as absolute. */
3908 if (h == htab->elf.hdynamic
3909 || (h == htab->elf.hgot || h == htab->elf.hplt))
3910 sym->st_shndx = SHN_ABS;
3911
3912 return true;
3913 }
3914
3915 /* Finish up the dynamic sections. */
3916
3917 static bool
3918 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3919 bfd *dynobj, asection *sdyn,
3920 asection *splt ATTRIBUTE_UNUSED)
3921 {
3922 struct tilegx_elf_link_hash_table *htab;
3923 const struct elf_backend_data *bed;
3924 bfd_byte *dyncon, *dynconend;
3925 size_t dynsize;
3926
3927 htab = tilegx_elf_hash_table (info);
3928 BFD_ASSERT (htab != NULL);
3929 bed = get_elf_backend_data (output_bfd);
3930 dynsize = bed->s->sizeof_dyn;
3931 dynconend = sdyn->contents + sdyn->size;
3932
3933 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
3934 {
3935 Elf_Internal_Dyn dyn;
3936 asection *s;
3937
3938 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
3939
3940 switch (dyn.d_tag)
3941 {
3942 case DT_PLTGOT:
3943 s = htab->elf.sgotplt;
3944 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3945 break;
3946 case DT_JMPREL:
3947 s = htab->elf.srelplt;
3948 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3949 break;
3950 case DT_PLTRELSZ:
3951 s = htab->elf.srelplt;
3952 dyn.d_un.d_val = s->size;
3953 break;
3954 default:
3955 continue;
3956 }
3957
3958 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3959 }
3960 return true;
3961 }
3962
3963 bool
3964 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
3965 struct bfd_link_info *info)
3966 {
3967 bfd *dynobj;
3968 asection *sdyn;
3969 struct tilegx_elf_link_hash_table *htab;
3970 size_t pad_size;
3971
3972 htab = tilegx_elf_hash_table (info);
3973 BFD_ASSERT (htab != NULL);
3974 dynobj = htab->elf.dynobj;
3975
3976 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3977
3978 if (elf_hash_table (info)->dynamic_sections_created)
3979 {
3980 asection *splt;
3981 bool ret;
3982
3983 splt = htab->elf.splt;
3984 BFD_ASSERT (splt != NULL && sdyn != NULL);
3985
3986 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3987
3988 if (!ret)
3989 return ret;
3990
3991 /* Fill in the head and tail entries in the procedure linkage table. */
3992 if (splt->size > 0)
3993 {
3994 memcpy (splt->contents,
3995 ABI_64_P (output_bfd) ?
3996 tilegx64_plt0_entry : tilegx32_plt0_entry,
3997 PLT_HEADER_SIZE);
3998
3999 memcpy (splt->contents + splt->size
4000 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
4001 ABI_64_P (output_bfd) ?
4002 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4003 PLT_TAIL_SIZE);
4004 /* Add padding so that the plt section is a multiple of its
4005 entry size. */
4006 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4007 memset (splt->contents + splt->size - pad_size, 0, pad_size);
4008
4009 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4010 = PLT_ENTRY_SIZE;
4011 }
4012 }
4013
4014 if (htab->elf.sgotplt)
4015 {
4016 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4017 {
4018 _bfd_error_handler
4019 (_("discarded output section: `%pA'"), htab->elf.sgotplt);
4020 return false;
4021 }
4022
4023 if (htab->elf.sgotplt->size > 0)
4024 {
4025 /* Write the first two entries in .got.plt, needed for the dynamic
4026 linker. */
4027 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4028 htab->elf.sgotplt->contents);
4029 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4030 htab->elf.sgotplt->contents
4031 + GOT_ENTRY_SIZE (htab));
4032
4033 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4034 GOT_ENTRY_SIZE (htab);
4035 }
4036 }
4037
4038 if (htab->elf.sgot)
4039 {
4040 if (htab->elf.sgot->size > 0)
4041 {
4042 /* Set the first entry in the global offset table to the address of
4043 the dynamic section. */
4044 bfd_vma val = (sdyn ?
4045 sdyn->output_section->vma + sdyn->output_offset :
4046 0);
4047 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4048 htab->elf.sgot->contents);
4049
4050 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4051 GOT_ENTRY_SIZE (htab);
4052 }
4053 }
4054
4055 return true;
4056 }
4057
4058 \f
4059
4060 /* Return address for Ith PLT stub in section PLT, for relocation REL
4061 or (bfd_vma) -1 if it should not be included. */
4062
4063 bfd_vma
4064 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4065 const arelent *rel ATTRIBUTE_UNUSED)
4066 {
4067 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4068 }
4069
4070 enum elf_reloc_type_class
4071 tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4072 const asection *rel_sec ATTRIBUTE_UNUSED,
4073 const Elf_Internal_Rela *rela)
4074 {
4075 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4076 {
4077 case R_TILEGX_RELATIVE:
4078 return reloc_class_relative;
4079 case R_TILEGX_JMP_SLOT:
4080 return reloc_class_plt;
4081 case R_TILEGX_COPY:
4082 return reloc_class_copy;
4083 default:
4084 return reloc_class_normal;
4085 }
4086 }
4087
4088 int
4089 tilegx_additional_program_headers (bfd *abfd,
4090 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4091 {
4092 /* Each .intrpt section specified by the user adds another PT_LOAD
4093 header since the sections are discontiguous. */
4094 static const char intrpt_sections[4][9] =
4095 {
4096 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4097 };
4098 int count = 0;
4099 int i;
4100
4101 for (i = 0; i < 4; i++)
4102 {
4103 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4104 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4105 ++count;
4106 }
4107
4108 /* Add four "padding" headers in to leave room in case a custom linker
4109 script does something fancy. Otherwise ld complains that it ran
4110 out of program headers and refuses to link. */
4111 count += 4;
4112
4113 return count;
4114 }
4115
4116
4117 bool
4118 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4119 {
4120 bfd *obfd = info->output_bfd;
4121 const char *targ1 = bfd_get_target (ibfd);
4122 const char *targ2 = bfd_get_target (obfd);
4123
4124 if (strcmp (targ1, targ2) != 0)
4125 {
4126 _bfd_error_handler
4127 /* xgettext:c-format */
4128 (_("%pB: cannot link together %s and %s objects"),
4129 ibfd, targ1, targ2);
4130 bfd_set_error (bfd_error_bad_value);
4131 return false;
4132 }
4133
4134 return true;
4135 }
The GNU Binutils are a collection of binary tools.