1 /* TILE-Gx-specific support for ELF.
2 Copyright (C) 2011-2017 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
25 #include "elf/tilegx.h"
26 #include "opcode/tilegx.h"
27 #include "libiberty.h"
28 #include "elfxx-tilegx.h"
30 #define ABI_64_P(abfd) \
31 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
33 #define TILEGX_ELF_WORD_BYTES(htab) \
34 ((htab)->bytes_per_word)
36 /* The size of an external RELA relocation. */
37 #define TILEGX_ELF_RELA_BYTES(htab) \
38 ((htab)->bytes_per_rela)
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) \
45 #define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \
46 ((htab)->r_info (in_rel, index, type))
48 #define TILEGX_ELF_R_SYMNDX(htab, r_info) \
49 ((htab)->r_symndx(r_info))
51 #define TILEGX_ELF_DTPOFF_RELOC(htab) \
52 ((htab)->dtpoff_reloc)
54 #define TILEGX_ELF_DTPMOD_RELOC(htab) \
55 ((htab)->dtpmod_reloc)
57 #define TILEGX_ELF_TPOFF_RELOC(htab) \
60 #define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \
61 ((htab)->put_word (bfd, val, ptr))
63 /* The name of the dynamic interpreter. This is put in the .interp
66 #define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1"
67 #define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1"
70 static reloc_howto_type tilegx_elf_howto_table [] =
72 /* This reloc does nothing. */
73 HOWTO (R_TILEGX_NONE, /* type */
75 3, /* size (0 = byte, 1 = short, 2 = long) */
77 FALSE, /* pc_relative */
79 complain_overflow_dont, /* complain_on_overflow */
80 bfd_elf_generic_reloc, /* special_function */
81 "R_TILEGX_NONE", /* name */
82 FALSE, /* partial_inplace */
85 FALSE), /* pcrel_offset */
87 /* A 64 bit absolute relocation. */
88 HOWTO (R_TILEGX_64, /* type */
90 4, /* size (0 = byte, 1 = short, 2 = long) */
92 FALSE, /* pc_relative */
94 complain_overflow_dont, /* complain_on_overflow */
95 bfd_elf_generic_reloc, /* special_function */
96 "R_TILEGX_64", /* name */
97 FALSE, /* partial_inplace */
99 0xffffffffffffffffULL, /* dst_mask */
100 FALSE), /* pcrel_offset */
102 /* A 32 bit absolute relocation. */
103 HOWTO (R_TILEGX_32, /* type */
105 2, /* size (0 = byte, 1 = short, 2 = long) */
107 FALSE, /* pc_relative */
109 complain_overflow_dont, /* complain_on_overflow */
110 bfd_elf_generic_reloc, /* special_function */
111 "R_TILEGX_32", /* name */
112 FALSE, /* partial_inplace */
114 0xffffffff, /* dst_mask */
115 FALSE), /* pcrel_offset */
117 /* A 16 bit absolute relocation. */
118 HOWTO (R_TILEGX_16, /* type */
120 1, /* size (0 = byte, 1 = short, 2 = long) */
122 FALSE, /* pc_relative */
124 complain_overflow_bitfield, /* complain_on_overflow */
125 bfd_elf_generic_reloc, /* special_function */
126 "R_TILEGX_16", /* name */
127 FALSE, /* partial_inplace */
129 0xffff, /* dst_mask */
130 FALSE), /* pcrel_offset */
132 /* An 8 bit absolute relocation. */
133 HOWTO (R_TILEGX_8, /* type */
135 0, /* size (0 = byte, 1 = short, 2 = long) */
137 FALSE, /* pc_relative */
139 complain_overflow_unsigned, /* complain_on_overflow */
140 bfd_elf_generic_reloc, /* special_function */
141 "R_TILEGX_8", /* name */
142 FALSE, /* partial_inplace */
145 FALSE), /* pcrel_offset */
147 /* A 64 bit pc-relative relocation. */
148 HOWTO (R_TILEGX_64_PCREL,/* type */
150 4, /* size (0 = byte, 1 = short, 2 = long) */
152 TRUE, /* pc_relative */
154 complain_overflow_dont, /* complain_on_overflow */
155 bfd_elf_generic_reloc, /* special_function */
156 "R_TILEGX_32_PCREL", /* name */
157 FALSE, /* partial_inplace */
159 0xffffffffffffffffULL, /* dst_mask */
160 TRUE), /* pcrel_offset */
162 /* A 32 bit pc-relative relocation. */
163 HOWTO (R_TILEGX_32_PCREL,/* type */
165 2, /* size (0 = byte, 1 = short, 2 = long) */
167 TRUE, /* pc_relative */
169 complain_overflow_dont, /* complain_on_overflow */
170 bfd_elf_generic_reloc, /* special_function */
171 "R_TILEGX_32_PCREL", /* name */
172 FALSE, /* partial_inplace */
174 0xffffffff, /* dst_mask */
175 TRUE), /* pcrel_offset */
177 /* A 16 bit pc-relative relocation. */
178 HOWTO (R_TILEGX_16_PCREL,/* type */
180 1, /* size (0 = byte, 1 = short, 2 = long) */
182 TRUE, /* pc_relative */
184 complain_overflow_signed, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_TILEGX_16_PCREL", /* name */
187 FALSE, /* partial_inplace */
189 0xffff, /* dst_mask */
190 TRUE), /* pcrel_offset */
192 /* An 8 bit pc-relative relocation. */
193 HOWTO (R_TILEGX_8_PCREL, /* type */
195 0, /* size (0 = byte, 1 = short, 2 = long) */
197 TRUE, /* pc_relative */
199 complain_overflow_signed, /* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_TILEGX_8_PCREL",/* name */
202 FALSE, /* partial_inplace */
205 TRUE), /* pcrel_offset */
207 /* A 16 bit relocation without overflow. */
208 HOWTO (R_TILEGX_HW0, /* type */
210 1, /* size (0 = byte, 1 = short, 2 = long) */
212 FALSE, /* pc_relative */
214 complain_overflow_dont,/* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_TILEGX_HW0", /* name */
217 FALSE, /* partial_inplace */
219 0xffff, /* dst_mask */
220 FALSE), /* pcrel_offset */
222 /* A 16 bit relocation without overflow. */
223 HOWTO (R_TILEGX_HW1, /* type */
225 1, /* size (0 = byte, 1 = short, 2 = long) */
227 FALSE, /* pc_relative */
229 complain_overflow_dont,/* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_TILEGX_HW1", /* name */
232 FALSE, /* partial_inplace */
234 0xffff, /* dst_mask */
235 FALSE), /* pcrel_offset */
237 /* A 16 bit relocation without overflow. */
238 HOWTO (R_TILEGX_HW2, /* type */
240 1, /* size (0 = byte, 1 = short, 2 = long) */
242 FALSE, /* pc_relative */
244 complain_overflow_dont,/* complain_on_overflow */
245 bfd_elf_generic_reloc, /* special_function */
246 "R_TILEGX_HW2", /* name */
247 FALSE, /* partial_inplace */
249 0xffff, /* dst_mask */
250 FALSE), /* pcrel_offset */
252 /* A 16 bit relocation without overflow. */
253 HOWTO (R_TILEGX_HW3, /* type */
255 1, /* size (0 = byte, 1 = short, 2 = long) */
257 FALSE, /* pc_relative */
259 complain_overflow_dont,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_TILEGX_HW3", /* name */
262 FALSE, /* partial_inplace */
264 0xffff, /* dst_mask */
265 FALSE), /* pcrel_offset */
267 /* A 16 bit relocation with overflow. */
268 HOWTO (R_TILEGX_HW0_LAST, /* type */
270 1, /* size (0 = byte, 1 = short, 2 = long) */
272 FALSE, /* pc_relative */
274 complain_overflow_signed,/* complain_on_overflow */
275 bfd_elf_generic_reloc, /* special_function */
276 "R_TILEGX_HW0_LAST", /* name */
277 FALSE, /* partial_inplace */
279 0xffff, /* dst_mask */
280 FALSE), /* pcrel_offset */
282 /* A 16 bit relocation with overflow. */
283 HOWTO (R_TILEGX_HW1_LAST, /* type */
285 1, /* size (0 = byte, 1 = short, 2 = long) */
287 FALSE, /* pc_relative */
289 complain_overflow_signed,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_TILEGX_HW1_LAST", /* name */
292 FALSE, /* partial_inplace */
294 0xffff, /* dst_mask */
295 FALSE), /* pcrel_offset */
297 /* A 16 bit relocation with overflow. */
298 HOWTO (R_TILEGX_HW2_LAST, /* type */
300 1, /* size (0 = byte, 1 = short, 2 = long) */
302 FALSE, /* pc_relative */
304 complain_overflow_signed,/* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_TILEGX_HW2_LAST", /* name */
307 FALSE, /* partial_inplace */
309 0xffff, /* dst_mask */
310 FALSE), /* pcrel_offset */
312 HOWTO (R_TILEGX_COPY, /* type */
314 0, /* size (0 = byte, 1 = short, 2 = long) */
316 FALSE, /* pc_relative */
318 complain_overflow_dont, /* complain_on_overflow */
319 bfd_elf_generic_reloc, /* special_function */
320 "R_TILEGX_COPY", /* name */
321 FALSE, /* partial_inplace */
324 TRUE), /* pcrel_offset */
326 HOWTO (R_TILEGX_GLOB_DAT, /* type */
328 0, /* size (0 = byte, 1 = short, 2 = long) */
330 FALSE, /* pc_relative */
332 complain_overflow_dont, /* complain_on_overflow */
333 bfd_elf_generic_reloc, /* special_function */
334 "R_TILEGX_GLOB_DAT", /* name */
335 FALSE, /* partial_inplace */
338 TRUE), /* pcrel_offset */
340 HOWTO (R_TILEGX_JMP_SLOT, /* type */
342 0, /* size (0 = byte, 1 = short, 2 = long) */
344 FALSE, /* pc_relative */
346 complain_overflow_dont, /* complain_on_overflow */
347 bfd_elf_generic_reloc, /* special_function */
348 "R_TILEGX_JMP_SLOT", /* name */
349 FALSE, /* partial_inplace */
352 TRUE), /* pcrel_offset */
354 HOWTO (R_TILEGX_RELATIVE, /* type */
356 0, /* size (0 = byte, 1 = short, 2 = long) */
358 FALSE, /* pc_relative */
360 complain_overflow_dont, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_TILEGX_RELATIVE", /* name */
363 FALSE, /* partial_inplace */
366 TRUE), /* pcrel_offset */
368 HOWTO (R_TILEGX_BROFF_X1, /* type */
369 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
372 TRUE, /* pc_relative */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_TILEGX_BROFF_X1", /* name */
377 FALSE, /* partial_inplace */
380 TRUE), /* pcrel_offset */
382 HOWTO (R_TILEGX_JUMPOFF_X1, /* type */
383 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
384 2, /* size (0 = byte, 1 = short, 2 = long) */
386 TRUE, /* pc_relative */
388 complain_overflow_signed,/* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_TILEGX_JUMPOFF_X1", /* name */
391 FALSE, /* partial_inplace */
394 TRUE), /* pcrel_offset */
396 HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */
397 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
398 2, /* size (0 = byte, 1 = short, 2 = long) */
400 TRUE, /* pc_relative */
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 */
408 TRUE), /* pcrel_offset */
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)
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)
420 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 0, 8),
421 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0, 0, 8),
422 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1, 0, 8),
423 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1, 0, 8),
424 TILEGX_IMM_HOWTO(R_TILEGX_DEST_IMM8_X1, 0, 8),
426 TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 1, 14),
427 TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 1, 14),
429 TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 0, 6),
430 TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 0, 6),
432 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X0, 0, 6),
433 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X1, 0, 6),
434 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y0, 0, 6),
435 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y1, 0, 6),
437 #define TILEGX_IMM16_HOWTO(name, rshift) \
438 HOWTO (name, rshift, 1, 16, FALSE, 0, \
439 complain_overflow_dont, bfd_elf_generic_reloc, \
440 #name, FALSE, 0, 0xffff, FALSE)
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),
451 #define TILEGX_IMM16_HOWTO_LAST(name, rshift) \
452 HOWTO (name, rshift, 1, 16, FALSE, 0, \
453 complain_overflow_signed, bfd_elf_generic_reloc, \
454 #name, FALSE, 0, 0xffff, FALSE)
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),
463 /* PC-relative offsets. */
465 #define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \
466 HOWTO (name, rshift, 1, 16, TRUE, 0, \
467 complain_overflow_dont, bfd_elf_generic_reloc, \
468 #name, FALSE, 0, 0xffff, TRUE)
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),
479 #define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \
480 HOWTO (name, rshift, 1, 16, TRUE, 0, \
481 complain_overflow_signed, bfd_elf_generic_reloc, \
482 #name, FALSE, 0, 0xffff, TRUE)
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),
491 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0),
492 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0),
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),
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),
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),
509 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
510 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
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),
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),
526 #define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \
527 HOWTO (name, rshift, 1, 16, FALSE, 0, \
528 complain_overflow_dont, bfd_elf_generic_reloc, \
529 #name, FALSE, 0, 0xffff, TRUE)
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),
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),
541 #define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
542 HOWTO (name, rshift, 1, 16, FALSE, 0, \
543 complain_overflow_signed, bfd_elf_generic_reloc, \
544 #name, FALSE, 0, 0xffff, TRUE)
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),
553 HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
554 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
556 HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
557 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
559 HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
560 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
563 HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
564 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
566 HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield,
567 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
569 HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
570 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
573 HOWTO (R_TILEGX_TLS_GD_CALL, /* type */
574 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
577 TRUE, /* pc_relative */
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 */
585 TRUE), /* pcrel_offset */
587 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8),
588 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8),
589 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8),
590 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8),
591 TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8),
592 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8),
593 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8),
594 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8),
595 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8),
598 static reloc_howto_type tilegx_elf_howto_table2 [] =
600 /* GNU extension to record C++ vtable hierarchy */
601 HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
603 4, /* size (0 = byte, 1 = short, 2 = long) */
605 FALSE, /* pc_relative */
607 complain_overflow_dont, /* complain_on_overflow */
608 NULL, /* special_function */
609 "R_TILEGX_GNU_VTINHERIT", /* name */
610 FALSE, /* partial_inplace */
613 FALSE), /* pcrel_offset */
615 /* GNU extension to record C++ vtable member usage */
616 HOWTO (R_TILEGX_GNU_VTENTRY, /* type */
618 4, /* size (0 = byte, 1 = short, 2 = long) */
620 FALSE, /* pc_relative */
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 */
628 FALSE), /* pcrel_offset */
632 /* Map BFD reloc types to TILEGX ELF reloc types. */
634 typedef struct tilegx_reloc_map
636 bfd_reloc_code_real_type bfd_reloc_val;
637 unsigned int tilegx_reloc_val;
638 reloc_howto_type * table;
641 static const reloc_map tilegx_reloc_map [] =
643 #define TH_REMAP(bfd, tilegx) \
644 { bfd, tilegx, tilegx_elf_howto_table },
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)
657 #define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
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)
754 SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
755 SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
756 SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
758 SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
759 SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
760 SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
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)
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 },
782 /* The TILE-Gx linker needs to keep track of the number of relocs that it
783 decides to copy as dynamic relocs in check_relocs for each symbol.
784 This is so that it can later discard them if they are found to be
785 unnecessary. We store the information in a field extending the
786 regular ELF linker hash table. */
788 struct tilegx_elf_dyn_relocs
790 struct tilegx_elf_dyn_relocs *next;
792 /* The input section of the reloc. */
795 /* Total number of relocs copied for the input section. */
798 /* Number of pc-relative relocs copied for the input section. */
799 bfd_size_type pc_count;
802 /* TILEGX ELF linker hash entry. */
804 struct tilegx_elf_link_hash_entry
806 struct elf_link_hash_entry elf;
808 /* Track dynamic relocs copied for this symbol. */
809 struct tilegx_elf_dyn_relocs *dyn_relocs;
811 #define GOT_UNKNOWN 0
815 unsigned char tls_type;
818 #define tilegx_elf_hash_entry(ent) \
819 ((struct tilegx_elf_link_hash_entry *)(ent))
821 struct _bfd_tilegx_elf_obj_tdata
823 struct elf_obj_tdata root;
825 /* tls_type for each local got entry. */
826 char *local_got_tls_type;
829 #define _bfd_tilegx_elf_tdata(abfd) \
830 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
832 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
833 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
835 #define is_tilegx_elf(bfd) \
836 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
837 && elf_tdata (bfd) != NULL \
838 && elf_object_id (bfd) == TILEGX_ELF_DATA)
840 #include "elf/common.h"
841 #include "elf/internal.h"
843 struct tilegx_elf_link_hash_table
845 struct elf_link_hash_table elf;
848 int word_align_power;
853 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
854 bfd_vma (*r_symndx) (bfd_vma);
855 void (*put_word) (bfd *, bfd_vma, void *);
856 const char *dynamic_interpreter;
858 /* Whether LE transition has been disabled for some of the
860 bfd_boolean disable_le_transition;
862 /* Small local sym to section mapping cache. */
863 struct sym_cache sym_cache;
867 /* Get the Tile ELF linker hash table from a link_info structure. */
868 #define tilegx_elf_hash_table(p) \
869 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
870 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
874 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
878 return ELF64_R_INFO (rel_index, type);
882 tilegx_elf_r_symndx_64 (bfd_vma r_info)
884 return ELF64_R_SYM (r_info);
888 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
890 bfd_put_64 (abfd, val, ptr);
895 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
899 return ELF32_R_INFO (rel_index, type);
903 tilegx_elf_r_symndx_32 (bfd_vma r_info)
905 return ELF32_R_SYM (r_info);
909 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
911 bfd_put_32 (abfd, val, ptr);
915 tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
916 bfd_reloc_code_real_type code)
920 for (i = ARRAY_SIZE (tilegx_reloc_map); i--;)
922 const reloc_map * entry;
924 entry = tilegx_reloc_map + i;
926 if (entry->bfd_reloc_val == code)
927 return entry->table + (entry->tilegx_reloc_val
928 - entry->table[0].type);
935 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
941 i < (sizeof (tilegx_elf_howto_table)
942 / sizeof (tilegx_elf_howto_table[0]));
944 if (tilegx_elf_howto_table[i].name != NULL
945 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
946 return &tilegx_elf_howto_table[i];
952 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
954 Elf_Internal_Rela *dst)
956 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
958 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
959 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
960 else if (r_type - R_TILEGX_GNU_VTINHERIT
961 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
963 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
968 typedef tilegx_bundle_bits (*tilegx_create_func)(int);
970 static const tilegx_create_func reloc_to_create_func[] =
972 /* The first twenty relocation types don't correspond to operands */
994 /* The remaining relocations are used for immediate operands */
1002 create_Dest_Imm8_X1,
1082 tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1084 const struct elf_backend_data *bed;
1087 bed = get_elf_backend_data (abfd);
1088 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1089 bed->s->swap_reloca_out (abfd, rel, loc);
1094 /* The procedure linkage table starts with the following header:
1100 info 10 ## SP not offset, return PC in LR
1103 Subsequent entries are the following, jumping to the header at the end:
1106 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1111 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1112 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1116 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1121 info 10 ## SP not offset, return PC in LR
1124 shl16insli r29, zero, MY_PLT_INDEX
1128 This code sequence lets the code at at the start of the PLT determine
1129 which PLT entry was executed by examining 'r29'.
1131 Note that MY_PLT_INDEX skips over the header entries, so the first
1132 actual jump table entry has index zero.
1134 If the offset fits in 16 bits,
1139 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1140 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1143 shl16insli r29, zero, MY_PLT_INDEX
1150 info 10 ## SP not offset, return PC in LR
1152 For the purpose of backtracing, the procedure linkage table ends with the
1153 following tail entry:
1155 info 10 ## SP not offset, return PC in LR
1157 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1158 the GOT being multiples of 4 instead of 8.
1162 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1163 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1164 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1166 #define PLT_HEADER_SIZE \
1167 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1168 #define PLT_ENTRY_SIZE \
1169 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1170 #define PLT_TAIL_SIZE \
1171 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1173 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1175 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1177 static const bfd_byte
1178 tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1180 0x00, 0x30, 0x48, 0x51,
1181 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1182 0x00, 0x30, 0xbc, 0x35,
1183 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1184 0xff, 0xaf, 0x30, 0x40,
1185 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1188 static const bfd_byte
1189 tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1191 0xdc, 0x0f, 0x00, 0x10,
1192 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1193 0xdb, 0x0f, 0x00, 0x10,
1194 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1195 0x9c, 0xc6, 0x0d, 0xd0,
1196 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1197 0x9b, 0xb6, 0xc5, 0xad,
1198 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1199 0xdd, 0x0f, 0x00, 0x70,
1200 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1203 static const bfd_byte
1204 tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1206 0x00, 0x30, 0x48, 0x51,
1207 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1208 0x9c, 0x06, 0x00, 0x90,
1209 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1210 0xdd, 0x0f, 0x00, 0x70,
1211 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1212 0x9b, 0xb6, 0x0d, 0x50,
1213 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1214 0x00, 0x30, 0x48, 0xd1,
1215 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1218 /* Reuse an existing info 10 bundle. */
1219 static const bfd_byte *const tilegx64_plt_tail_entry =
1220 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1222 static const bfd_byte
1223 tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1225 0x00, 0x30, 0x48, 0x51,
1226 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1227 0x00, 0x30, 0xbc, 0x35,
1228 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1229 0xff, 0xaf, 0x30, 0x40,
1230 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1233 static const bfd_byte
1234 tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1236 0xdc, 0x0f, 0x00, 0x10,
1237 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1238 0xdb, 0x0f, 0x00, 0x10,
1239 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1240 0x9c, 0xc6, 0x0d, 0xd0,
1241 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1242 0x9b, 0xb6, 0xc5, 0xad,
1243 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1244 0xdd, 0x0f, 0x00, 0x70,
1245 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1248 static const bfd_byte
1249 tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1251 0x00, 0x30, 0x48, 0x51,
1252 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1253 0x9c, 0x06, 0x00, 0x90,
1254 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1255 0xdd, 0x0f, 0x00, 0x70,
1256 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1257 0x9b, 0xb6, 0x0d, 0x50,
1258 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1259 0x00, 0x30, 0x48, 0xd1,
1260 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1263 /* Reuse an existing info 10 bundle. */
1264 static const bfd_byte *const tilegx32_plt_tail_entry =
1265 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1268 tilegx_plt_entry_build (bfd *output_bfd,
1269 struct tilegx_elf_link_hash_table *htab,
1270 asection *splt, asection *sgotplt,
1271 bfd_vma offset, bfd_vma *r_offset)
1273 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1274 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1275 + GOTPLT_HEADER_SIZE (htab));
1276 tilegx_bundle_bits *pc;
1278 /* Compute the distance from the got entry to the lnk. */
1279 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1280 + sgotplt->output_offset
1282 - splt->output_section->vma
1283 - splt->output_offset
1285 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1287 /* Compute the distance to GOTPLT[0]. */
1288 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1290 /* Check whether we can use the short plt entry with 16-bit offset. */
1291 bfd_boolean short_plt_entry =
1292 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1294 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1295 (ABI_64_P (output_bfd) ?
1296 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1297 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1299 /* Copy the plt entry template. */
1300 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1302 /* Write the immediate offsets. */
1303 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1305 if (short_plt_entry)
1310 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1311 *pc++ |= create_Imm16_X0 (dist_got_entry)
1312 | create_Imm16_X1 (dist_got0);
1314 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1315 *pc++ |= create_Imm16_X0 (plt_index);
1319 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1320 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1322 /* { moveli r27, &GOTPLT[0] ;
1323 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1324 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1325 | create_Imm16_X1 (dist_got_entry);
1327 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1328 *pc++ |= create_Imm16_X1 (dist_got0);
1330 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1333 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1334 *pc++ |= create_Imm16_X0 (plt_index);
1337 /* Set the relocation offset. */
1338 *r_offset = got_offset;
1343 /* Create an entry in an TILEGX ELF linker hash table. */
1345 static struct bfd_hash_entry *
1346 link_hash_newfunc (struct bfd_hash_entry *entry,
1347 struct bfd_hash_table *table, const char *string)
1349 /* Allocate the structure if it has not already been allocated by a
1354 bfd_hash_allocate (table,
1355 sizeof (struct tilegx_elf_link_hash_entry));
1360 /* Call the allocation method of the superclass. */
1361 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1364 struct tilegx_elf_link_hash_entry *eh;
1366 eh = (struct tilegx_elf_link_hash_entry *) entry;
1367 eh->dyn_relocs = NULL;
1368 eh->tls_type = GOT_UNKNOWN;
1374 /* Create a TILEGX ELF linker hash table. */
1376 struct bfd_link_hash_table *
1377 tilegx_elf_link_hash_table_create (bfd *abfd)
1379 struct tilegx_elf_link_hash_table *ret;
1380 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1382 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1387 if (ABI_64_P (abfd))
1389 ret->bytes_per_word = 8;
1390 ret->word_align_power = 3;
1391 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1392 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1393 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1394 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1395 ret->r_info = tilegx_elf_r_info_64;
1396 ret->r_symndx = tilegx_elf_r_symndx_64;
1397 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1398 ret->put_word = tilegx_put_word_64;
1403 ret->bytes_per_word = 4;
1404 ret->word_align_power = 2;
1405 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1406 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1407 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1408 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1409 ret->r_info = tilegx_elf_r_info_32;
1410 ret->r_symndx = tilegx_elf_r_symndx_32;
1411 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1412 ret->put_word = tilegx_put_word_32;
1415 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1416 sizeof (struct tilegx_elf_link_hash_entry),
1423 return &ret->elf.root;
1426 /* Create the .got section. */
1429 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1432 asection *s, *s_got;
1433 struct elf_link_hash_entry *h;
1434 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1435 struct elf_link_hash_table *htab = elf_hash_table (info);
1437 /* This function may be called more than once. */
1438 if (htab->sgot != NULL)
1441 flags = bed->dynamic_sec_flags;
1443 s = bfd_make_section_anyway_with_flags (abfd,
1444 (bed->rela_plts_and_copies_p
1445 ? ".rela.got" : ".rel.got"),
1446 (bed->dynamic_sec_flags
1449 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1453 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1455 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1459 /* The first bit of the global offset table is the header. */
1460 s->size += bed->got_header_size;
1462 if (bed->want_got_plt)
1464 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
1466 || !bfd_set_section_alignment (abfd, s,
1467 bed->s->log_file_align))
1471 /* Reserve room for the header. */
1472 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1475 if (bed->want_got_sym)
1477 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1478 section. We don't do this in the linker script because we don't want
1479 to define the symbol if we are not creating a global offset
1481 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1482 "_GLOBAL_OFFSET_TABLE_");
1483 elf_hash_table (info)->hgot = h;
1491 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1492 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1496 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1497 struct bfd_link_info *info)
1499 if (!tilegx_elf_create_got_section (dynobj, info))
1502 return _bfd_elf_create_dynamic_sections (dynobj, info);
1505 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1508 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1509 struct elf_link_hash_entry *dir,
1510 struct elf_link_hash_entry *ind)
1512 struct tilegx_elf_link_hash_entry *edir, *eind;
1514 edir = (struct tilegx_elf_link_hash_entry *) dir;
1515 eind = (struct tilegx_elf_link_hash_entry *) ind;
1517 if (eind->dyn_relocs != NULL)
1519 if (edir->dyn_relocs != NULL)
1521 struct tilegx_elf_dyn_relocs **pp;
1522 struct tilegx_elf_dyn_relocs *p;
1524 /* Add reloc counts against the indirect sym to the direct sym
1525 list. Merge any entries against the same section. */
1526 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1528 struct tilegx_elf_dyn_relocs *q;
1530 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1531 if (q->sec == p->sec)
1533 q->pc_count += p->pc_count;
1534 q->count += p->count;
1541 *pp = edir->dyn_relocs;
1544 edir->dyn_relocs = eind->dyn_relocs;
1545 eind->dyn_relocs = NULL;
1548 if (ind->root.type == bfd_link_hash_indirect
1549 && dir->got.refcount <= 0)
1551 edir->tls_type = eind->tls_type;
1552 eind->tls_type = GOT_UNKNOWN;
1554 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1558 tilegx_tls_translate_to_le (int r_type)
1562 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1563 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1564 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1566 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1567 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1568 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1570 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1571 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1572 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1574 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1575 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1576 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1578 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1579 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1580 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1582 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1583 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1584 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1590 tilegx_tls_translate_to_ie (int r_type)
1594 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1595 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1596 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1598 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1599 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1600 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1602 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1603 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1604 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1606 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1607 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1608 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1610 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1611 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1612 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1614 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1615 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1616 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1622 tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1623 int is_local, bfd_boolean disable_le_transition)
1625 if (bfd_link_pic (info))
1628 if (is_local && !disable_le_transition)
1629 return tilegx_tls_translate_to_le (r_type);
1631 return tilegx_tls_translate_to_ie (r_type);
1634 /* Look through the relocs for a section during the first phase, and
1635 allocate space in the global offset table or procedure linkage
1639 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1640 asection *sec, const Elf_Internal_Rela *relocs)
1642 struct tilegx_elf_link_hash_table *htab;
1643 Elf_Internal_Shdr *symtab_hdr;
1644 struct elf_link_hash_entry **sym_hashes;
1645 const Elf_Internal_Rela *rel;
1646 const Elf_Internal_Rela *rel_end;
1649 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
1651 if (bfd_link_relocatable (info))
1654 htab = tilegx_elf_hash_table (info);
1655 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1656 sym_hashes = elf_sym_hashes (abfd);
1660 num_relocs = sec->reloc_count;
1662 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1664 if (htab->elf.dynobj == NULL)
1665 htab->elf.dynobj = abfd;
1667 rel_end = relocs + num_relocs;
1669 /* Check whether to do optimization to transform TLS GD/IE
1670 referehces to TLS LE. We disable it if we're linking with old
1671 TLS code sequences that do not support such optimization. Old
1672 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1673 no tls_add relocations. */
1674 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1676 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1679 case R_TILEGX_TLS_GD_CALL:
1680 case R_TILEGX_TLS_IE_LOAD:
1681 has_tls_gd_or_ie = TRUE;
1683 case R_TILEGX_IMM8_X0_TLS_ADD:
1684 case R_TILEGX_IMM8_Y0_TLS_ADD:
1685 case R_TILEGX_IMM8_X1_TLS_ADD:
1686 case R_TILEGX_IMM8_Y1_TLS_ADD:
1692 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1693 htab->disable_le_transition |= sec->sec_flg0;
1695 for (rel = relocs; rel < rel_end; rel++)
1697 unsigned int r_type;
1698 unsigned int r_symndx;
1699 struct elf_link_hash_entry *h;
1702 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1703 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1705 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1707 /* xgettext:c-format */
1708 _bfd_error_handler (_("%B: bad symbol index: %d"),
1713 if (r_symndx < symtab_hdr->sh_info)
1717 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1718 while (h->root.type == bfd_link_hash_indirect
1719 || h->root.type == bfd_link_hash_warning)
1720 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1722 /* PR15323, ref flags aren't set for references in the same
1724 h->root.non_ir_ref_regular = 1;
1727 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1731 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1732 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1733 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1734 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1735 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1736 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1737 if (bfd_link_pic (info))
1738 goto r_tilegx_plt32;
1741 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1742 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1743 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1744 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1745 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1746 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1747 BFD_ASSERT (bfd_link_pic (info));
1748 tls_type = GOT_TLS_GD;
1749 goto have_got_reference;
1751 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1752 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1753 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1754 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1755 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1756 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1757 tls_type = GOT_TLS_IE;
1758 if (bfd_link_pic (info))
1759 info->flags |= DF_STATIC_TLS;
1760 goto have_got_reference;
1762 case R_TILEGX_IMM16_X0_HW0_GOT:
1763 case R_TILEGX_IMM16_X1_HW0_GOT:
1764 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1765 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1766 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1767 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1768 tls_type = GOT_NORMAL;
1772 /* This symbol requires a global offset table entry. */
1778 h->got.refcount += 1;
1779 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1783 bfd_signed_vma *local_got_refcounts;
1785 /* This is a global offset table entry for a local symbol. */
1786 local_got_refcounts = elf_local_got_refcounts (abfd);
1787 if (local_got_refcounts == NULL)
1791 size = symtab_hdr->sh_info;
1792 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1793 local_got_refcounts = ((bfd_signed_vma *)
1794 bfd_zalloc (abfd, size));
1795 if (local_got_refcounts == NULL)
1797 elf_local_got_refcounts (abfd) = local_got_refcounts;
1798 _bfd_tilegx_elf_local_got_tls_type (abfd)
1799 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1801 local_got_refcounts[r_symndx] += 1;
1802 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1805 /* If a TLS symbol is accessed using IE at least once,
1806 there is no point to use dynamic model for it. */
1807 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1808 && (old_tls_type != GOT_TLS_GD
1809 || tls_type != GOT_TLS_IE))
1811 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1812 tls_type = old_tls_type;
1816 /* xgettext:c-format */
1817 (_("%B: `%s' accessed both as normal and thread local symbol"),
1818 abfd, h ? h->root.root.string : "<local>");
1823 if (old_tls_type != tls_type)
1826 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1828 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1832 if (htab->elf.sgot == NULL)
1834 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1839 case R_TILEGX_TLS_GD_CALL:
1840 if (bfd_link_pic (info))
1842 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1843 against __tls_get_addr. */
1844 struct bfd_link_hash_entry *bh = NULL;
1845 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1846 "__tls_get_addr", 0,
1847 bfd_und_section_ptr, 0,
1851 h = (struct elf_link_hash_entry *) bh;
1857 case R_TILEGX_JUMPOFF_X1_PLT:
1858 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1859 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1860 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1861 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1862 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1863 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1864 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1865 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1866 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1867 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1868 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1869 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1870 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1871 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
1872 /* This symbol requires a procedure linkage table entry. We
1873 actually build the entry in adjust_dynamic_symbol,
1874 because this might be a case of linking PIC code without
1875 linking in any dynamic objects, in which case we don't
1876 need to generate a procedure linkage table after all. */
1881 h->plt.refcount += 1;
1885 case R_TILEGX_64_PCREL:
1886 case R_TILEGX_32_PCREL:
1887 case R_TILEGX_16_PCREL:
1888 case R_TILEGX_8_PCREL:
1889 case R_TILEGX_IMM16_X0_HW0_PCREL:
1890 case R_TILEGX_IMM16_X1_HW0_PCREL:
1891 case R_TILEGX_IMM16_X0_HW1_PCREL:
1892 case R_TILEGX_IMM16_X1_HW1_PCREL:
1893 case R_TILEGX_IMM16_X0_HW2_PCREL:
1894 case R_TILEGX_IMM16_X1_HW2_PCREL:
1895 case R_TILEGX_IMM16_X0_HW3_PCREL:
1896 case R_TILEGX_IMM16_X1_HW3_PCREL:
1897 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1898 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1899 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1900 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1901 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1902 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1907 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1919 case R_TILEGX_HW0_LAST:
1920 case R_TILEGX_HW1_LAST:
1921 case R_TILEGX_HW2_LAST:
1923 case R_TILEGX_GLOB_DAT:
1924 case R_TILEGX_JMP_SLOT:
1925 case R_TILEGX_RELATIVE:
1926 case R_TILEGX_BROFF_X1:
1927 case R_TILEGX_JUMPOFF_X1:
1928 case R_TILEGX_IMM8_X0:
1929 case R_TILEGX_IMM8_Y0:
1930 case R_TILEGX_IMM8_X1:
1931 case R_TILEGX_IMM8_Y1:
1932 case R_TILEGX_DEST_IMM8_X1:
1933 case R_TILEGX_MT_IMM14_X1:
1934 case R_TILEGX_MF_IMM14_X1:
1935 case R_TILEGX_MMSTART_X0:
1936 case R_TILEGX_MMEND_X0:
1937 case R_TILEGX_SHAMT_X0:
1938 case R_TILEGX_SHAMT_X1:
1939 case R_TILEGX_SHAMT_Y0:
1940 case R_TILEGX_SHAMT_Y1:
1941 case R_TILEGX_IMM16_X0_HW0:
1942 case R_TILEGX_IMM16_X1_HW0:
1943 case R_TILEGX_IMM16_X0_HW1:
1944 case R_TILEGX_IMM16_X1_HW1:
1945 case R_TILEGX_IMM16_X0_HW2:
1946 case R_TILEGX_IMM16_X1_HW2:
1947 case R_TILEGX_IMM16_X0_HW3:
1948 case R_TILEGX_IMM16_X1_HW3:
1949 case R_TILEGX_IMM16_X0_HW0_LAST:
1950 case R_TILEGX_IMM16_X1_HW0_LAST:
1951 case R_TILEGX_IMM16_X0_HW1_LAST:
1952 case R_TILEGX_IMM16_X1_HW1_LAST:
1953 case R_TILEGX_IMM16_X0_HW2_LAST:
1954 case R_TILEGX_IMM16_X1_HW2_LAST:
1959 if (h != NULL && !bfd_link_pic (info))
1961 /* We may need a .plt entry if the function this reloc
1962 refers to is in a shared lib. */
1963 h->plt.refcount += 1;
1966 /* If we are creating a shared library, and this is a reloc
1967 against a global symbol, or a non PC relative reloc
1968 against a local symbol, then we need to copy the reloc
1969 into the shared library. However, if we are linking with
1970 -Bsymbolic, we do not need to copy a reloc against a
1971 global symbol which is defined in an object we are
1972 including in the link (i.e., DEF_REGULAR is set). At
1973 this point we have not seen all the input files, so it is
1974 possible that DEF_REGULAR is not set now but will be set
1975 later (it is never cleared). In case of a weak definition,
1976 DEF_REGULAR may be cleared later by a strong definition in
1977 a shared library. We account for that possibility below by
1978 storing information in the relocs_copied field of the hash
1979 table entry. A similar situation occurs when creating
1980 shared libraries and symbol visibility changes render the
1983 If on the other hand, we are creating an executable, we
1984 may need to keep relocations for symbols satisfied by a
1985 dynamic library if we manage to avoid copy relocs for the
1987 if ((bfd_link_pic (info)
1988 && (sec->flags & SEC_ALLOC) != 0
1989 && (! tilegx_elf_howto_table[r_type].pc_relative
1991 && (! info->symbolic
1992 || h->root.type == bfd_link_hash_defweak
1993 || !h->def_regular))))
1994 || (!bfd_link_pic (info)
1995 && (sec->flags & SEC_ALLOC) != 0
1997 && (h->root.type == bfd_link_hash_defweak
1998 || !h->def_regular)))
2000 struct tilegx_elf_dyn_relocs *p;
2001 struct tilegx_elf_dyn_relocs **head;
2003 /* When creating a shared object, we must copy these
2004 relocs into the output file. We create a reloc
2005 section in dynobj and make room for the reloc. */
2008 sreloc = _bfd_elf_make_dynamic_reloc_section
2009 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2016 /* If this is a global symbol, we count the number of
2017 relocations we need for this symbol. */
2020 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2023 /* Track dynamic relocs needed for local syms too.
2024 We really need local syms available to do this
2029 Elf_Internal_Sym *isym;
2031 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2036 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2040 vpp = &elf_section_data (s)->local_dynrel;
2041 head = (struct tilegx_elf_dyn_relocs **) vpp;
2045 if (p == NULL || p->sec != sec)
2047 bfd_size_type amt = sizeof *p;
2048 p = ((struct tilegx_elf_dyn_relocs *)
2049 bfd_alloc (htab->elf.dynobj, amt));
2060 if (tilegx_elf_howto_table[r_type].pc_relative)
2066 case R_TILEGX_GNU_VTINHERIT:
2067 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2071 case R_TILEGX_GNU_VTENTRY:
2072 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2086 tilegx_elf_gc_mark_hook (asection *sec,
2087 struct bfd_link_info *info,
2088 Elf_Internal_Rela *rel,
2089 struct elf_link_hash_entry *h,
2090 Elf_Internal_Sym *sym)
2094 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2096 case R_TILEGX_GNU_VTINHERIT:
2097 case R_TILEGX_GNU_VTENTRY:
2102 /* FIXME: The test here, in check_relocs and in relocate_section
2103 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2104 if (bfd_link_pic (info))
2106 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2108 case R_TILEGX_TLS_GD_CALL:
2109 /* This reloc implicitly references __tls_get_addr. We know
2110 another reloc will reference the same symbol as the one
2111 on this reloc, so the real symbol and section will be
2112 gc marked when processing the other reloc. That lets
2113 us handle __tls_get_addr here. */
2114 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
2115 FALSE, FALSE, TRUE);
2116 BFD_ASSERT (h != NULL);
2118 if (h->u.weakdef != NULL)
2119 h->u.weakdef->mark = 1;
2124 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2127 /* Update the got entry reference counts for the section being removed. */
2129 tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
2130 asection *sec, const Elf_Internal_Rela *relocs)
2132 struct tilegx_elf_link_hash_table *htab;
2133 Elf_Internal_Shdr *symtab_hdr;
2134 struct elf_link_hash_entry **sym_hashes;
2135 bfd_signed_vma *local_got_refcounts;
2136 const Elf_Internal_Rela *rel, *relend;
2138 if (bfd_link_relocatable (info))
2141 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
2143 elf_section_data (sec)->local_dynrel = NULL;
2145 htab = tilegx_elf_hash_table (info);
2146 BFD_ASSERT (htab != NULL);
2147 symtab_hdr = &elf_symtab_hdr (abfd);
2148 sym_hashes = elf_sym_hashes (abfd);
2149 local_got_refcounts = elf_local_got_refcounts (abfd);
2151 relend = relocs + sec->reloc_count;
2152 for (rel = relocs; rel < relend; rel++)
2154 unsigned long r_symndx;
2155 unsigned int r_type;
2156 struct elf_link_hash_entry *h = NULL;
2158 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2159 if (r_symndx >= symtab_hdr->sh_info)
2161 struct tilegx_elf_link_hash_entry *eh;
2162 struct tilegx_elf_dyn_relocs **pp;
2163 struct tilegx_elf_dyn_relocs *p;
2165 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2166 while (h->root.type == bfd_link_hash_indirect
2167 || h->root.type == bfd_link_hash_warning)
2168 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2169 eh = (struct tilegx_elf_link_hash_entry *) h;
2170 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2173 /* Everything must go for SEC. */
2179 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2180 r_type = tilegx_elf_tls_transition (info, r_type, h != NULL,
2184 case R_TILEGX_IMM16_X0_HW0_GOT:
2185 case R_TILEGX_IMM16_X1_HW0_GOT:
2186 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2187 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2188 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2189 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
2190 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2191 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
2192 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2193 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2194 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2195 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
2196 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2197 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
2198 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2199 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2200 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2201 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
2204 if (h->got.refcount > 0)
2209 if (local_got_refcounts &&
2210 local_got_refcounts[r_symndx] > 0)
2211 local_got_refcounts[r_symndx]--;
2215 case R_TILEGX_64_PCREL:
2216 case R_TILEGX_32_PCREL:
2217 case R_TILEGX_16_PCREL:
2218 case R_TILEGX_8_PCREL:
2219 case R_TILEGX_IMM16_X0_HW0_PCREL:
2220 case R_TILEGX_IMM16_X1_HW0_PCREL:
2221 case R_TILEGX_IMM16_X0_HW1_PCREL:
2222 case R_TILEGX_IMM16_X1_HW1_PCREL:
2223 case R_TILEGX_IMM16_X0_HW2_PCREL:
2224 case R_TILEGX_IMM16_X1_HW2_PCREL:
2225 case R_TILEGX_IMM16_X0_HW3_PCREL:
2226 case R_TILEGX_IMM16_X1_HW3_PCREL:
2227 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2228 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2229 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2230 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2231 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2232 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2234 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2246 case R_TILEGX_HW0_LAST:
2247 case R_TILEGX_HW1_LAST:
2248 case R_TILEGX_HW2_LAST:
2250 case R_TILEGX_GLOB_DAT:
2251 case R_TILEGX_JMP_SLOT:
2252 case R_TILEGX_RELATIVE:
2253 case R_TILEGX_BROFF_X1:
2254 case R_TILEGX_JUMPOFF_X1:
2255 case R_TILEGX_IMM8_X0:
2256 case R_TILEGX_IMM8_Y0:
2257 case R_TILEGX_IMM8_X1:
2258 case R_TILEGX_IMM8_Y1:
2259 case R_TILEGX_DEST_IMM8_X1:
2260 case R_TILEGX_MT_IMM14_X1:
2261 case R_TILEGX_MF_IMM14_X1:
2262 case R_TILEGX_MMSTART_X0:
2263 case R_TILEGX_MMEND_X0:
2264 case R_TILEGX_SHAMT_X0:
2265 case R_TILEGX_SHAMT_X1:
2266 case R_TILEGX_SHAMT_Y0:
2267 case R_TILEGX_SHAMT_Y1:
2268 case R_TILEGX_IMM16_X0_HW0:
2269 case R_TILEGX_IMM16_X1_HW0:
2270 case R_TILEGX_IMM16_X0_HW1:
2271 case R_TILEGX_IMM16_X1_HW1:
2272 case R_TILEGX_IMM16_X0_HW2:
2273 case R_TILEGX_IMM16_X1_HW2:
2274 case R_TILEGX_IMM16_X0_HW3:
2275 case R_TILEGX_IMM16_X1_HW3:
2276 case R_TILEGX_IMM16_X0_HW0_LAST:
2277 case R_TILEGX_IMM16_X1_HW0_LAST:
2278 case R_TILEGX_IMM16_X0_HW1_LAST:
2279 case R_TILEGX_IMM16_X1_HW1_LAST:
2280 case R_TILEGX_IMM16_X0_HW2_LAST:
2281 case R_TILEGX_IMM16_X1_HW2_LAST:
2282 if (bfd_link_pic (info))
2286 case R_TILEGX_JUMPOFF_X1_PLT:
2287 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
2288 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
2289 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
2290 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
2291 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
2292 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
2293 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
2294 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
2295 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
2296 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
2297 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
2298 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
2299 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
2300 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
2303 if (h->plt.refcount > 0)
2316 /* Adjust a symbol defined by a dynamic object and referenced by a
2317 regular object. The current definition is in some section of the
2318 dynamic object, but we're not including those sections. We have to
2319 change the definition to something the rest of the link can
2323 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2324 struct elf_link_hash_entry *h)
2326 struct tilegx_elf_link_hash_table *htab;
2327 struct tilegx_elf_link_hash_entry * eh;
2328 struct tilegx_elf_dyn_relocs *p;
2332 htab = tilegx_elf_hash_table (info);
2333 BFD_ASSERT (htab != NULL);
2335 dynobj = htab->elf.dynobj;
2337 /* Make sure we know what is going on here. */
2338 BFD_ASSERT (dynobj != NULL
2340 || h->u.weakdef != NULL
2343 && !h->def_regular)));
2345 /* If this is a function, put it in the procedure linkage table. We
2346 will fill in the contents of the procedure linkage table later
2347 (although we could actually do it here). */
2348 if (h->type == STT_FUNC || h->needs_plt)
2350 if (h->plt.refcount <= 0
2351 || SYMBOL_CALLS_LOCAL (info, h)
2352 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2353 && h->root.type == bfd_link_hash_undefweak))
2355 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2356 reloc in an input file, but the symbol was never referred
2357 to by a dynamic object, or if all references were garbage
2358 collected. In such a case, we don't actually need to build
2359 a procedure linkage table, and we can just do a
2360 R_TILEGX_JUMPOFF_X1 relocation instead. */
2361 h->plt.offset = (bfd_vma) -1;
2368 h->plt.offset = (bfd_vma) -1;
2370 /* If this is a weak symbol, and there is a real definition, the
2371 processor independent code will have arranged for us to see the
2372 real definition first, and we can just use the same value. */
2373 if (h->u.weakdef != NULL)
2375 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2376 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2377 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2378 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2382 /* This is a reference to a symbol defined by a dynamic object which
2383 is not a function. */
2385 /* If we are creating a shared library, we must presume that the
2386 only references to the symbol are via the global offset table.
2387 For such cases we need not do anything here; the relocations will
2388 be handled correctly by relocate_section. */
2389 if (bfd_link_pic (info))
2392 /* If there are no references to this symbol that do not use the
2393 GOT, we don't need to generate a copy reloc. */
2394 if (!h->non_got_ref)
2397 /* If -z nocopyreloc was given, we won't generate them either. */
2398 if (info->nocopyreloc)
2404 eh = (struct tilegx_elf_link_hash_entry *) h;
2405 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2407 s = p->sec->output_section;
2408 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2412 /* If we didn't find any dynamic relocs in read-only sections, then
2413 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2420 /* We must allocate the symbol in our .dynbss section, which will
2421 become part of the .bss section of the executable. There will be
2422 an entry for this symbol in the .dynsym section. The dynamic
2423 object will contain position independent code, so all references
2424 from the dynamic object to this symbol will go through the global
2425 offset table. The dynamic linker will use the .dynsym entry to
2426 determine the address it must put in the global offset table, so
2427 both the dynamic object and the regular object will refer to the
2428 same memory location for the variable. */
2430 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2431 to copy the initial value out of the dynamic object and into the
2432 runtime process image. We need to remember the offset into the
2433 .rel.bss section we are going to use. */
2434 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2436 s = htab->elf.sdynrelro;
2437 srel = htab->elf.sreldynrelro;
2441 s = htab->elf.sdynbss;
2442 srel = htab->elf.srelbss;
2444 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2446 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2450 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2453 /* Allocate space in .plt, .got and associated reloc sections for
2457 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2459 struct bfd_link_info *info;
2460 struct tilegx_elf_link_hash_table *htab;
2461 struct tilegx_elf_link_hash_entry *eh;
2462 struct tilegx_elf_dyn_relocs *p;
2464 if (h->root.type == bfd_link_hash_indirect)
2467 info = (struct bfd_link_info *) inf;
2468 htab = tilegx_elf_hash_table (info);
2469 BFD_ASSERT (htab != NULL);
2471 if (htab->elf.dynamic_sections_created
2472 && h->plt.refcount > 0)
2474 /* Make sure this symbol is output as a dynamic symbol.
2475 Undefined weak syms won't yet be marked as dynamic. */
2476 if (h->dynindx == -1
2477 && !h->forced_local)
2479 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2483 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2485 asection *s = htab->elf.splt;
2487 /* Allocate room for the header and tail. */
2490 s->size = PLT_ENTRY_SIZE;
2493 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
2495 /* If this symbol is not defined in a regular file, and we are
2496 not generating a shared library, then set the symbol to this
2497 location in the .plt. This is required to make function
2498 pointers compare as equal between the normal executable and
2499 the shared library. */
2500 if (! bfd_link_pic (info)
2503 h->root.u.def.section = s;
2504 h->root.u.def.value = h->plt.offset;
2507 /* Make room for this entry. */
2508 s->size += PLT_ENTRY_SIZE;
2510 /* We also need to make an entry in the .got.plt section. */
2511 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2513 /* We also need to make an entry in the .rela.plt section. */
2514 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2518 h->plt.offset = (bfd_vma) -1;
2524 h->plt.offset = (bfd_vma) -1;
2528 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2529 requiring no TLS entry. */
2530 if (h->got.refcount > 0
2531 && !htab->disable_le_transition
2532 && !bfd_link_pic (info)
2534 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2535 h->got.offset = (bfd_vma) -1;
2536 else if (h->got.refcount > 0)
2540 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2542 /* Make sure this symbol is output as a dynamic symbol.
2543 Undefined weak syms won't yet be marked as dynamic. */
2544 if (h->dynindx == -1
2545 && !h->forced_local)
2547 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2552 h->got.offset = s->size;
2553 s->size += TILEGX_ELF_WORD_BYTES (htab);
2554 /* TLS_GD entries need 2 consecutive GOT slots. */
2555 if (tls_type == GOT_TLS_GD)
2556 s->size += TILEGX_ELF_WORD_BYTES (htab);
2557 dyn = htab->elf.dynamic_sections_created;
2558 /* TLS_IE needs one dynamic relocation,
2559 TLS_GD needs two if local symbol and two if global. */
2560 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2561 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2562 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2563 bfd_link_pic (info),
2565 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2568 h->got.offset = (bfd_vma) -1;
2570 eh = (struct tilegx_elf_link_hash_entry *) h;
2571 if (eh->dyn_relocs == NULL)
2574 /* In the shared -Bsymbolic case, discard space allocated for
2575 dynamic pc-relative relocs against symbols which turn out to be
2576 defined in regular objects. For the normal shared case, discard
2577 space for pc-relative relocs that have become local due to symbol
2578 visibility changes. */
2580 if (bfd_link_pic (info))
2582 if (SYMBOL_CALLS_LOCAL (info, h))
2584 struct tilegx_elf_dyn_relocs **pp;
2586 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2588 p->count -= p->pc_count;
2597 /* Also discard relocs on undefined weak syms with non-default
2599 if (eh->dyn_relocs != NULL
2600 && h->root.type == bfd_link_hash_undefweak)
2602 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2603 eh->dyn_relocs = NULL;
2605 /* Make sure undefined weak symbols are output as a dynamic
2607 else if (h->dynindx == -1
2608 && !h->forced_local)
2610 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2617 /* For the non-shared case, discard space for relocs against
2618 symbols which turn out to need copy relocs or are not
2624 || (htab->elf.dynamic_sections_created
2625 && (h->root.type == bfd_link_hash_undefweak
2626 || h->root.type == bfd_link_hash_undefined))))
2628 /* Make sure this symbol is output as a dynamic symbol.
2629 Undefined weak syms won't yet be marked as dynamic. */
2630 if (h->dynindx == -1
2631 && !h->forced_local)
2633 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2637 /* If that succeeded, we know we'll be keeping all the
2639 if (h->dynindx != -1)
2643 eh->dyn_relocs = NULL;
2648 /* Finally, allocate space. */
2649 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2651 asection *sreloc = elf_section_data (p->sec)->sreloc;
2652 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2658 /* Find any dynamic relocs that apply to read-only sections. */
2661 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2663 struct tilegx_elf_link_hash_entry *eh;
2664 struct tilegx_elf_dyn_relocs *p;
2666 eh = (struct tilegx_elf_link_hash_entry *) h;
2667 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2669 asection *s = p->sec->output_section;
2671 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2673 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2675 info->flags |= DF_TEXTREL;
2677 /* Not an error, just cut short the traversal. */
2684 /* Return true if the dynamic symbol for a given section should be
2685 omitted when creating a shared library. */
2688 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2689 struct bfd_link_info *info,
2692 /* We keep the .got section symbol so that explicit relocations
2693 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2694 can be turned into relocations against the .got symbol. */
2695 if (strcmp (p->name, ".got") == 0)
2698 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2702 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2703 struct bfd_link_info *info)
2705 struct tilegx_elf_link_hash_table *htab;
2710 htab = tilegx_elf_hash_table (info);
2711 BFD_ASSERT (htab != NULL);
2712 dynobj = htab->elf.dynobj;
2713 BFD_ASSERT (dynobj != NULL);
2715 if (elf_hash_table (info)->dynamic_sections_created)
2717 /* Set the contents of the .interp section to the interpreter. */
2718 if (bfd_link_executable (info) && !info->nointerp)
2720 s = bfd_get_linker_section (dynobj, ".interp");
2721 BFD_ASSERT (s != NULL);
2722 s->size = strlen (htab->dynamic_interpreter) + 1;
2723 s->contents = (unsigned char *) htab->dynamic_interpreter;
2727 /* Set up .got offsets for local syms, and space for local dynamic
2729 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2731 bfd_signed_vma *local_got;
2732 bfd_signed_vma *end_local_got;
2733 char *local_tls_type;
2734 bfd_size_type locsymcount;
2735 Elf_Internal_Shdr *symtab_hdr;
2738 if (! is_tilegx_elf (ibfd))
2741 for (s = ibfd->sections; s != NULL; s = s->next)
2743 struct tilegx_elf_dyn_relocs *p;
2745 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2747 if (!bfd_is_abs_section (p->sec)
2748 && bfd_is_abs_section (p->sec->output_section))
2750 /* Input section has been discarded, either because
2751 it is a copy of a linkonce section or due to
2752 linker script /DISCARD/, so we'll be discarding
2755 else if (p->count != 0)
2757 srel = elf_section_data (p->sec)->sreloc;
2758 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2759 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2760 info->flags |= DF_TEXTREL;
2765 local_got = elf_local_got_refcounts (ibfd);
2769 symtab_hdr = &elf_symtab_hdr (ibfd);
2770 locsymcount = symtab_hdr->sh_info;
2771 end_local_got = local_got + locsymcount;
2772 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2774 srel = htab->elf.srelgot;
2775 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2779 *local_got = s->size;
2780 s->size += TILEGX_ELF_WORD_BYTES (htab);
2781 if (*local_tls_type == GOT_TLS_GD)
2782 s->size += TILEGX_ELF_WORD_BYTES (htab);
2783 if (bfd_link_pic (info)
2784 || *local_tls_type == GOT_TLS_GD
2785 || *local_tls_type == GOT_TLS_IE)
2786 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2789 *local_got = (bfd_vma) -1;
2793 /* Allocate global sym .plt and .got entries, and space for global
2794 sym dynamic relocs. */
2795 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2797 if (elf_hash_table (info)->dynamic_sections_created)
2799 /* If the .got section is more than 0x8000 bytes, we add
2800 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2801 bit relocations have a greater chance of working. */
2802 if (htab->elf.sgot->size >= 0x8000
2803 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2804 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2807 if (htab->elf.sgotplt)
2809 struct elf_link_hash_entry *got;
2810 got = elf_link_hash_lookup (elf_hash_table (info),
2811 "_GLOBAL_OFFSET_TABLE_",
2812 FALSE, FALSE, FALSE);
2814 /* Don't allocate .got.plt section if there are no GOT nor PLT
2815 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2817 || !got->ref_regular_nonweak)
2818 && (htab->elf.sgotplt->size
2819 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2820 && (htab->elf.splt == NULL
2821 || htab->elf.splt->size == 0)
2822 && (htab->elf.sgot == NULL
2823 || (htab->elf.sgot->size
2824 == get_elf_backend_data (output_bfd)->got_header_size)))
2825 htab->elf.sgotplt->size = 0;
2828 /* The check_relocs and adjust_dynamic_symbol entry points have
2829 determined the sizes of the various dynamic sections. Allocate
2831 for (s = dynobj->sections; s != NULL; s = s->next)
2833 if ((s->flags & SEC_LINKER_CREATED) == 0)
2836 if (s == htab->elf.splt
2837 || s == htab->elf.sgot
2838 || s == htab->elf.sgotplt
2839 || s == htab->elf.sdynbss
2840 || s == htab->elf.sdynrelro)
2842 /* Strip this section if we don't need it; see the
2845 else if (strncmp (s->name, ".rela", 5) == 0)
2849 /* We use the reloc_count field as a counter if we need
2850 to copy relocs into the output file. */
2856 /* It's not one of our sections. */
2862 /* If we don't need this section, strip it from the
2863 output file. This is mostly to handle .rela.bss and
2864 .rela.plt. We must create both sections in
2865 create_dynamic_sections, because they must be created
2866 before the linker maps input sections to output
2867 sections. The linker does that before
2868 adjust_dynamic_symbol is called, and it is that
2869 function which decides whether anything needs to go
2870 into these sections. */
2871 s->flags |= SEC_EXCLUDE;
2875 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2878 /* Allocate memory for the section contents. Zero the memory
2879 for the benefit of .rela.plt, which has 4 unused entries
2880 at the beginning, and we don't want garbage. */
2881 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2882 if (s->contents == NULL)
2886 if (elf_hash_table (info)->dynamic_sections_created)
2888 /* Add some entries to the .dynamic section. We fill in the
2889 values later, in tilegx_elf_finish_dynamic_sections, but we
2890 must add the entries now so that we get the correct size for
2891 the .dynamic section. The DT_DEBUG entry is filled in by the
2892 dynamic linker and used by the debugger. */
2893 #define add_dynamic_entry(TAG, VAL) \
2894 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2896 if (bfd_link_executable (info))
2898 if (!add_dynamic_entry (DT_DEBUG, 0))
2902 if (htab->elf.srelplt->size != 0)
2904 if (!add_dynamic_entry (DT_PLTGOT, 0)
2905 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2906 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2907 || !add_dynamic_entry (DT_JMPREL, 0))
2911 if (!add_dynamic_entry (DT_RELA, 0)
2912 || !add_dynamic_entry (DT_RELASZ, 0)
2913 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2916 /* If any dynamic relocs apply to a read-only section,
2917 then we need a DT_TEXTREL entry. */
2918 if ((info->flags & DF_TEXTREL) == 0)
2919 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2921 if (info->flags & DF_TEXTREL)
2923 if (!add_dynamic_entry (DT_TEXTREL, 0))
2927 #undef add_dynamic_entry
2932 /* Return the base VMA address which should be subtracted from real addresses
2933 when resolving @dtpoff relocation.
2934 This is PT_TLS segment p_vaddr. */
2937 dtpoff_base (struct bfd_link_info *info)
2939 /* If tls_sec is NULL, we should have signalled an error already. */
2940 if (elf_hash_table (info)->tls_sec == NULL)
2942 return elf_hash_table (info)->tls_sec->vma;
2945 /* Return the relocation value for @tpoff relocation. */
2948 tpoff (struct bfd_link_info *info, bfd_vma address)
2950 struct elf_link_hash_table *htab = elf_hash_table (info);
2952 /* If tls_sec is NULL, we should have signalled an error already. */
2953 if (htab->tls_sec == NULL)
2956 return (address - htab->tls_sec->vma);
2959 /* Copy SIZE bits from FROM to TO at address ADDR. */
2962 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2965 for (i = 0; i < size; i++)
2967 int from_byte = (from + i) / 8;
2968 int from_bit = (from + i) % 8;
2969 int to_byte = (to + i) / 8;
2970 int to_bit = (to + i) % 8;
2971 bfd_byte to_mask = 1 << to_bit;
2972 addr[to_byte] = (addr[to_byte] & ~to_mask)
2973 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2977 /* Replace the MASK bits in ADDR with those in INSN, for the next
2978 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2981 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2982 const bfd_byte *insn)
2985 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2987 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2991 /* Mask to extract the bits corresponding to an instruction in a
2992 specific pipe of a bundle. */
2993 static const bfd_byte insn_mask_X1[] = {
2994 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2997 /* Mask to extract the bits corresponding to an instruction in a
2998 specific pipe of a bundle, minus the destination operand and the
2999 first source operand. */
3000 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
3001 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
3004 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
3005 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
3008 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
3009 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
3011 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
3012 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
3015 /* Mask to extract the bits corresponding to an instruction in a
3016 specific pipe of a bundle, minus the register operands. */
3017 static const bfd_byte insn_mask_X0_no_operand[] = {
3018 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
3021 static const bfd_byte insn_mask_X1_no_operand[] = {
3022 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
3025 static const bfd_byte insn_mask_Y0_no_operand[] = {
3026 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
3029 static const bfd_byte insn_mask_Y1_no_operand[] = {
3030 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
3033 /* Various instructions synthesized to support tls references. */
3035 /* ld r0, r0 in the X1 pipe, used for tls ie. */
3036 static const bfd_byte insn_tls_ie_ld_X1[] = {
3037 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
3040 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
3041 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
3042 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
3045 /* add r0, r0, tp in various pipes, used for tls ie. */
3046 static const bfd_byte insn_tls_ie_add_X0X1[] = {
3047 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
3049 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
3050 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
3053 /* addx r0, r0, tp in various pipes, used for tls ie. */
3054 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
3055 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
3057 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
3058 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
3061 /* move r0, r0 in various pipes, used for tls gd. */
3062 static const bfd_byte insn_tls_gd_add_X0X1[] = {
3063 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
3065 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
3066 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
3069 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
3070 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
3072 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
3073 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
3075 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
3076 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
3078 /* Relocate an TILEGX ELF section.
3080 The RELOCATE_SECTION function is called by the new ELF backend linker
3081 to handle the relocations for a section.
3083 The relocs are always passed as Rela structures.
3085 This function is responsible for adjusting the section contents as
3086 necessary, and (if generating a relocatable output file) adjusting
3087 the reloc addend as necessary.
3089 This function does not have to worry about setting the reloc
3090 address or the reloc symbol index.
3092 LOCAL_SYMS is a pointer to the swapped in local symbols.
3094 LOCAL_SECTIONS is an array giving the section in the input file
3095 corresponding to the st_shndx field of each local symbol.
3097 The global hash table entry for the global symbols can be found
3098 via elf_sym_hashes (input_bfd).
3100 When generating relocatable output, this function must handle
3101 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
3102 going to be the section symbol corresponding to the output
3103 section, which means that the addend must be adjusted
3107 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3108 bfd *input_bfd, asection *input_section,
3109 bfd_byte *contents, Elf_Internal_Rela *relocs,
3110 Elf_Internal_Sym *local_syms,
3111 asection **local_sections)
3113 struct tilegx_elf_link_hash_table *htab;
3114 Elf_Internal_Shdr *symtab_hdr;
3115 struct elf_link_hash_entry **sym_hashes;
3116 bfd_vma *local_got_offsets;
3119 Elf_Internal_Rela *rel;
3120 Elf_Internal_Rela *relend;
3123 htab = tilegx_elf_hash_table (info);
3124 BFD_ASSERT (htab != NULL);
3125 symtab_hdr = &elf_symtab_hdr (input_bfd);
3126 sym_hashes = elf_sym_hashes (input_bfd);
3127 local_got_offsets = elf_local_got_offsets (input_bfd);
3129 if (elf_hash_table (info)->hgot == NULL)
3132 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3134 sreloc = elf_section_data (input_section)->sreloc;
3137 num_relocs = input_section->reloc_count;
3138 relend = relocs + num_relocs;
3139 for (; rel < relend; rel++)
3141 int r_type, tls_type;
3142 bfd_boolean is_tls_iele, is_tls_le;
3143 reloc_howto_type *howto;
3144 unsigned long r_symndx;
3145 struct elf_link_hash_entry *h;
3146 Elf_Internal_Sym *sym;
3147 tilegx_create_func create_func;
3150 bfd_reloc_status_type r;
3153 bfd_boolean is_plt = FALSE;
3155 bfd_boolean unresolved_reloc;
3157 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
3158 if (r_type == R_TILEGX_GNU_VTINHERIT
3159 || r_type == R_TILEGX_GNU_VTENTRY)
3162 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3163 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
3165 howto = tilegx_elf_howto_table + r_type;
3167 /* This is a final link. */
3168 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3172 unresolved_reloc = FALSE;
3173 if (r_symndx < symtab_hdr->sh_info)
3175 sym = local_syms + r_symndx;
3176 sec = local_sections[r_symndx];
3177 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3181 bfd_boolean warned ATTRIBUTE_UNUSED;
3182 bfd_boolean ignored ATTRIBUTE_UNUSED;
3184 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3185 r_symndx, symtab_hdr, sym_hashes,
3187 unresolved_reloc, warned, ignored);
3190 /* To avoid generating warning messages about truncated
3191 relocations, set the relocation's address to be the same as
3192 the start of this section. */
3193 if (input_section->output_section != NULL)
3194 relocation = input_section->output_section->vma;
3200 if (sec != NULL && discarded_section (sec))
3201 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3202 rel, 1, relend, howto, 0, contents);
3204 if (bfd_link_relocatable (info))
3208 name = h->root.root.string;
3211 name = (bfd_elf_string_from_elf_section
3212 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3213 if (name == NULL || *name == '\0')
3214 name = bfd_section_name (input_bfd, sec);
3219 case R_TILEGX_TLS_GD_CALL:
3220 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3221 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3222 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3223 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3224 case R_TILEGX_IMM8_X0_TLS_ADD:
3225 case R_TILEGX_IMM8_Y0_TLS_ADD:
3226 case R_TILEGX_IMM8_X1_TLS_ADD:
3227 case R_TILEGX_IMM8_Y1_TLS_ADD:
3228 tls_type = GOT_UNKNOWN;
3229 if (h == NULL && local_got_offsets)
3231 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3233 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3235 is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
3236 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3237 && !bfd_link_pic (info)
3238 && (h == NULL || h->dynindx == -1));
3240 if (r_type == R_TILEGX_TLS_GD_CALL)
3245 tilegx_replace_insn (contents + rel->r_offset,
3246 insn_mask_X1, insn_move_X0X1);
3249 else if (is_tls_iele)
3252 if (ABI_64_P (output_bfd))
3253 tilegx_replace_insn (contents + rel->r_offset,
3254 insn_mask_X1, insn_tls_ie_ld_X1);
3256 tilegx_replace_insn (contents + rel->r_offset,
3257 insn_mask_X1, insn_tls_ie_ld4s_X1);
3262 h = (struct elf_link_hash_entry *)
3263 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3265 BFD_ASSERT (h != NULL);
3266 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3267 howto = tilegx_elf_howto_table + r_type;
3269 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3270 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3271 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3272 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3274 bfd_boolean is_pipe0 =
3275 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3276 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3277 bfd_boolean is_X0X1 =
3278 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3279 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3280 int dest_begin = is_pipe0 ? 0 : 31;
3282 const bfd_byte *insn;
3283 const bfd_byte *mask = NULL;
3287 /* 1. copy dest operand into the first source operand.
3288 2. change the opcode to "move". */
3289 src_begin = is_pipe0 ? 6 : 37;
3290 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3294 case R_TILEGX_IMM8_X0_TLS_ADD:
3295 mask = insn_mask_X0_no_dest_no_srca;
3297 case R_TILEGX_IMM8_X1_TLS_ADD:
3298 mask = insn_mask_X1_no_dest_no_srca;
3300 case R_TILEGX_IMM8_Y0_TLS_ADD:
3301 mask = insn_mask_Y0_no_dest_no_srca;
3303 case R_TILEGX_IMM8_Y1_TLS_ADD:
3304 mask = insn_mask_Y1_no_dest_no_srca;
3310 /* 1. copy dest operand into the second source operand.
3311 2. change the opcode to "add". */
3312 src_begin = is_pipe0 ? 12 : 43;
3313 if (ABI_64_P (output_bfd))
3314 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3316 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3320 case R_TILEGX_IMM8_X0_TLS_ADD:
3321 mask = insn_mask_X0_no_operand;
3323 case R_TILEGX_IMM8_X1_TLS_ADD:
3324 mask = insn_mask_X1_no_operand;
3326 case R_TILEGX_IMM8_Y0_TLS_ADD:
3327 mask = insn_mask_Y0_no_operand;
3329 case R_TILEGX_IMM8_Y1_TLS_ADD:
3330 mask = insn_mask_Y1_no_operand;
3335 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3337 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3343 const bfd_byte *mask = NULL;
3344 const bfd_byte *add_insn = NULL;
3345 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3349 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3350 add_insn = is_tls_iele
3351 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3352 : insn_tls_gd_add_X0X1;
3353 mask = insn_mask_X0_no_dest_no_srca;
3355 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3356 add_insn = is_tls_iele
3357 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3358 : insn_tls_gd_add_X0X1;
3359 mask = insn_mask_X1_no_dest_no_srca;
3361 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3362 add_insn = is_tls_iele
3363 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3364 : insn_tls_gd_add_Y0Y1;
3365 mask = insn_mask_Y0_no_dest_no_srca;
3367 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3368 add_insn = is_tls_iele
3369 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3370 : insn_tls_gd_add_Y0Y1;
3371 mask = insn_mask_Y1_no_dest_no_srca;
3375 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3380 case R_TILEGX_TLS_IE_LOAD:
3381 if (!input_section->sec_flg0
3382 && !bfd_link_pic (info)
3383 && (h == NULL || h->dynindx == -1))
3386 tilegx_replace_insn (contents + rel->r_offset,
3387 insn_mask_X1_no_dest_no_srca,
3393 if (ABI_64_P (output_bfd))
3394 tilegx_replace_insn (contents + rel->r_offset,
3395 insn_mask_X1_no_dest_no_srca,
3398 tilegx_replace_insn (contents + rel->r_offset,
3399 insn_mask_X1_no_dest_no_srca,
3400 insn_tls_ie_ld4s_X1);
3410 case R_TILEGX_IMM16_X0_HW0_GOT:
3411 case R_TILEGX_IMM16_X1_HW0_GOT:
3412 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3413 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3414 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3415 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3416 /* Relocation is to the entry for this symbol in the global
3418 if (htab->elf.sgot == NULL)
3425 off = h->got.offset;
3426 BFD_ASSERT (off != (bfd_vma) -1);
3427 dyn = elf_hash_table (info)->dynamic_sections_created;
3429 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3430 bfd_link_pic (info),
3432 || (bfd_link_pic (info)
3433 && SYMBOL_REFERENCES_LOCAL (info, h)))
3435 /* This is actually a static link, or it is a
3436 -Bsymbolic link and the symbol is defined
3437 locally, or the symbol was forced to be local
3438 because of a version file. We must initialize
3439 this entry in the global offset table. Since the
3440 offset must always be a multiple
3441 of 8 for 64-bit, we use the least significant bit
3442 to record whether we have initialized it already.
3444 When doing a dynamic link, we create a .rela.got
3445 relocation entry to initialize the value. This
3446 is done in the finish_dynamic_symbol routine. */
3451 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3452 htab->elf.sgot->contents + off);
3457 unresolved_reloc = FALSE;
3461 BFD_ASSERT (local_got_offsets != NULL
3462 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3464 off = local_got_offsets[r_symndx];
3466 /* The offset must always be a multiple of 8 on 64-bit.
3467 We use the least significant bit to record
3468 whether we have already processed this entry. */
3473 if (bfd_link_pic (info))
3476 Elf_Internal_Rela outrel;
3478 /* We need to generate a R_TILEGX_RELATIVE reloc
3479 for the dynamic linker. */
3480 s = htab->elf.srelgot;
3481 BFD_ASSERT (s != NULL);
3483 outrel.r_offset = (htab->elf.sgot->output_section->vma
3484 + htab->elf.sgot->output_offset
3487 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3488 outrel.r_addend = relocation;
3490 tilegx_elf_append_rela (output_bfd, s, &outrel);
3493 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3494 htab->elf.sgot->contents + off);
3495 local_got_offsets[r_symndx] |= 1;
3498 relocation = off - got_base;
3501 case R_TILEGX_JUMPOFF_X1_PLT:
3502 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3503 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3504 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3505 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3506 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3507 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3508 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3509 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3510 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3511 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3512 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3513 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3514 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3515 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
3516 /* Relocation is to the entry for this symbol in the
3517 procedure linkage table. */
3518 BFD_ASSERT (h != NULL);
3520 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3522 /* We didn't make a PLT entry for this symbol. This
3523 happens when statically linking PIC code, or when
3524 using -Bsymbolic. */
3528 relocation = (htab->elf.splt->output_section->vma
3529 + htab->elf.splt->output_offset
3531 unresolved_reloc = FALSE;
3534 case R_TILEGX_64_PCREL:
3535 case R_TILEGX_32_PCREL:
3536 case R_TILEGX_16_PCREL:
3537 case R_TILEGX_8_PCREL:
3538 case R_TILEGX_IMM16_X0_HW0_PCREL:
3539 case R_TILEGX_IMM16_X1_HW0_PCREL:
3540 case R_TILEGX_IMM16_X0_HW1_PCREL:
3541 case R_TILEGX_IMM16_X1_HW1_PCREL:
3542 case R_TILEGX_IMM16_X0_HW2_PCREL:
3543 case R_TILEGX_IMM16_X1_HW2_PCREL:
3544 case R_TILEGX_IMM16_X0_HW3_PCREL:
3545 case R_TILEGX_IMM16_X1_HW3_PCREL:
3546 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3547 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3548 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3549 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3550 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3551 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3553 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3564 case R_TILEGX_HW0_LAST:
3565 case R_TILEGX_HW1_LAST:
3566 case R_TILEGX_HW2_LAST:
3568 case R_TILEGX_GLOB_DAT:
3569 case R_TILEGX_JMP_SLOT:
3570 case R_TILEGX_RELATIVE:
3571 case R_TILEGX_BROFF_X1:
3572 case R_TILEGX_JUMPOFF_X1:
3573 case R_TILEGX_IMM8_X0:
3574 case R_TILEGX_IMM8_Y0:
3575 case R_TILEGX_IMM8_X1:
3576 case R_TILEGX_IMM8_Y1:
3577 case R_TILEGX_DEST_IMM8_X1:
3578 case R_TILEGX_MT_IMM14_X1:
3579 case R_TILEGX_MF_IMM14_X1:
3580 case R_TILEGX_MMSTART_X0:
3581 case R_TILEGX_MMEND_X0:
3582 case R_TILEGX_SHAMT_X0:
3583 case R_TILEGX_SHAMT_X1:
3584 case R_TILEGX_SHAMT_Y0:
3585 case R_TILEGX_SHAMT_Y1:
3586 case R_TILEGX_IMM16_X0_HW0:
3587 case R_TILEGX_IMM16_X1_HW0:
3588 case R_TILEGX_IMM16_X0_HW1:
3589 case R_TILEGX_IMM16_X1_HW1:
3590 case R_TILEGX_IMM16_X0_HW2:
3591 case R_TILEGX_IMM16_X1_HW2:
3592 case R_TILEGX_IMM16_X0_HW3:
3593 case R_TILEGX_IMM16_X1_HW3:
3594 case R_TILEGX_IMM16_X0_HW0_LAST:
3595 case R_TILEGX_IMM16_X1_HW0_LAST:
3596 case R_TILEGX_IMM16_X0_HW1_LAST:
3597 case R_TILEGX_IMM16_X1_HW1_LAST:
3598 case R_TILEGX_IMM16_X0_HW2_LAST:
3599 case R_TILEGX_IMM16_X1_HW2_LAST:
3600 if ((input_section->flags & SEC_ALLOC) == 0)
3603 if ((bfd_link_pic (info)
3605 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3606 || h->root.type != bfd_link_hash_undefweak)
3607 && (! howto->pc_relative
3608 || !SYMBOL_CALLS_LOCAL (info, h)))
3609 || (!bfd_link_pic (info)
3615 || h->root.type == bfd_link_hash_undefweak
3616 || h->root.type == bfd_link_hash_undefined)))
3618 Elf_Internal_Rela outrel;
3619 bfd_boolean skip, relocate = FALSE;
3621 /* When generating a shared object, these relocations
3622 are copied into the output file to be resolved at run
3625 BFD_ASSERT (sreloc != NULL);
3630 _bfd_elf_section_offset (output_bfd, info, input_section,
3632 if (outrel.r_offset == (bfd_vma) -1)
3634 else if (outrel.r_offset == (bfd_vma) -2)
3635 skip = TRUE, relocate = TRUE;
3636 outrel.r_offset += (input_section->output_section->vma
3637 + input_section->output_offset);
3641 case R_TILEGX_64_PCREL:
3642 case R_TILEGX_32_PCREL:
3643 case R_TILEGX_16_PCREL:
3644 case R_TILEGX_8_PCREL:
3645 /* If the symbol is not dynamic, we should not keep
3646 a dynamic relocation. But an .rela.* slot has been
3647 allocated for it, output R_TILEGX_NONE.
3648 FIXME: Add code tracking needed dynamic relocs as
3650 if (h->dynindx == -1)
3651 skip = TRUE, relocate = TRUE;
3656 memset (&outrel, 0, sizeof outrel);
3657 /* h->dynindx may be -1 if the symbol was marked to
3659 else if (h != NULL &&
3662 || !bfd_link_pic (info)
3663 || !SYMBOLIC_BIND (info, h)
3664 || !h->def_regular))
3666 BFD_ASSERT (h->dynindx != -1);
3667 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3668 outrel.r_addend = rel->r_addend;
3672 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3674 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3676 outrel.r_addend = relocation + rel->r_addend;
3682 outrel.r_addend = relocation + rel->r_addend;
3685 sec = htab->elf.splt;
3687 if (bfd_is_abs_section (sec))
3689 else if (sec == NULL || sec->owner == NULL)
3691 bfd_set_error (bfd_error_bad_value);
3698 /* We are turning this relocation into one
3699 against a section symbol. It would be
3700 proper to subtract the symbol's value,
3701 osec->vma, from the emitted reloc addend,
3702 but ld.so expects buggy relocs. */
3703 osec = sec->output_section;
3704 indx = elf_section_data (osec)->dynindx;
3708 osec = htab->elf.text_index_section;
3709 indx = elf_section_data (osec)->dynindx;
3712 /* FIXME: we really should be able to link non-pic
3713 shared libraries. */
3718 (_("%B: probably compiled without -fPIC?"),
3720 bfd_set_error (bfd_error_bad_value);
3725 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3730 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3732 /* This reloc will be computed at runtime, so there's no
3733 need to do anything now. */
3739 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3740 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3741 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3742 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3743 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3744 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3745 if (bfd_link_pic (info))
3747 Elf_Internal_Rela outrel;
3750 BFD_ASSERT (sreloc != NULL);
3753 _bfd_elf_section_offset (output_bfd, info, input_section,
3755 if (outrel.r_offset == (bfd_vma) -1)
3757 else if (outrel.r_offset == (bfd_vma) -2)
3759 outrel.r_offset += (input_section->output_section->vma
3760 + input_section->output_offset);
3762 memset (&outrel, 0, sizeof outrel);
3765 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3766 outrel.r_addend = relocation - dtpoff_base (info)
3770 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3773 relocation = tpoff (info, relocation);
3776 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3777 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3778 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3779 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3780 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3781 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3782 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3783 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3784 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3785 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3786 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3787 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3788 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3789 input_section->sec_flg0);
3790 tls_type = GOT_UNKNOWN;
3791 if (h == NULL && local_got_offsets)
3793 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3796 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3797 if (!bfd_link_pic (info)
3799 && tls_type == GOT_TLS_IE)
3800 r_type = (!input_section->sec_flg0
3801 ? tilegx_tls_translate_to_le (r_type)
3802 : tilegx_tls_translate_to_ie (r_type));
3805 if (tls_type == GOT_TLS_IE)
3806 r_type = tilegx_tls_translate_to_ie (r_type);
3808 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3809 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3810 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3811 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3812 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3813 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3815 relocation = tpoff (info, relocation);
3821 off = h->got.offset;
3826 BFD_ASSERT (local_got_offsets != NULL);
3827 off = local_got_offsets[r_symndx];
3828 local_got_offsets[r_symndx] |= 1;
3831 if (htab->elf.sgot == NULL)
3838 Elf_Internal_Rela outrel;
3840 bfd_boolean need_relocs = FALSE;
3842 if (htab->elf.srelgot == NULL)
3848 dyn = htab->elf.dynamic_sections_created;
3850 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3851 bfd_link_pic (info),
3853 && (!bfd_link_pic (info)
3854 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3860 /* The GOT entries have not been initialized yet. Do it
3861 now, and emit any relocations. */
3862 if ((bfd_link_pic (info) || indx != 0)
3864 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3865 || h->root.type != bfd_link_hash_undefweak))
3870 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3871 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3872 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3873 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3874 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3875 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3877 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3878 htab->elf.sgot->contents + off);
3879 outrel.r_offset = (htab->elf.sgot->output_section->vma
3880 + htab->elf.sgot->output_offset + off);
3881 outrel.r_addend = 0;
3883 outrel.r_addend = relocation - dtpoff_base (info);
3884 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3885 TILEGX_ELF_TPOFF_RELOC (htab));
3886 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3888 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3889 tpoff (info, relocation),
3890 htab->elf.sgot->contents + off);
3894 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3895 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3896 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3897 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3898 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3899 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3901 outrel.r_offset = (htab->elf.sgot->output_section->vma
3902 + htab->elf.sgot->output_offset + off);
3903 outrel.r_addend = 0;
3904 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3905 TILEGX_ELF_DTPMOD_RELOC (htab));
3906 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3907 htab->elf.sgot->contents + off);
3908 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3911 BFD_ASSERT (! unresolved_reloc);
3912 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3913 relocation - dtpoff_base (info),
3914 (htab->elf.sgot->contents + off +
3915 TILEGX_ELF_WORD_BYTES (htab)));
3919 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3920 (htab->elf.sgot->contents + off +
3921 TILEGX_ELF_WORD_BYTES (htab)));
3922 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3923 TILEGX_ELF_DTPOFF_RELOC (htab));
3924 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3925 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3930 /* If we are not emitting relocations for a
3931 general dynamic reference, then we must be in a
3932 static link or an executable link with the
3933 symbol binding locally. Mark it as belonging
3934 to module 1, the executable. */
3935 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3936 htab->elf.sgot->contents + off );
3937 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3938 relocation - dtpoff_base (info),
3939 htab->elf.sgot->contents + off +
3940 TILEGX_ELF_WORD_BYTES (htab));
3946 if (off >= (bfd_vma) -2)
3949 relocation = off - got_base;
3950 unresolved_reloc = FALSE;
3951 howto = tilegx_elf_howto_table + r_type;
3958 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3959 because such sections are not SEC_ALLOC and thus ld.so will
3960 not process them. */
3961 if (unresolved_reloc
3962 && !((input_section->flags & SEC_DEBUGGING) != 0
3964 && _bfd_elf_section_offset (output_bfd, info, input_section,
3965 rel->r_offset) != (bfd_vma) -1)
3967 /* xgettext:c-format */
3968 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
3973 h->root.root.string);
3975 r = bfd_reloc_continue;
3977 /* Get the operand creation function, if any. */
3978 create_func = reloc_to_create_func[r_type];
3979 if (create_func == NULL)
3981 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3982 contents, rel->r_offset,
3983 relocation, rel->r_addend);
3987 if (howto->pc_relative)
3990 input_section->output_section->vma + input_section->output_offset;
3991 if (howto->pcrel_offset)
3992 relocation -= rel->r_offset;
3997 /* Add the relocation addend if any to the final target value */
3998 relocation += rel->r_addend;
4000 /* Do basic range checking */
4001 r = bfd_check_overflow (howto->complain_on_overflow,
4004 TILEGX_ELF_WORD_BYTES (htab) * 8,
4008 * Write the relocated value out into the raw section data.
4009 * Don't put a relocation out in the .rela section.
4011 tilegx_bundle_bits mask = create_func(-1);
4012 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
4014 /* Only touch bytes while the mask is not 0, so we
4015 don't write to out of bounds memory if this is actually
4016 a 16-bit switch instruction. */
4017 for (data = contents + rel->r_offset; mask != 0; data++)
4019 bfd_byte byte_mask = (bfd_byte)mask;
4020 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
4026 if (r != bfd_reloc_ok)
4028 const char *msg = NULL;
4032 case bfd_reloc_overflow:
4033 (*info->callbacks->reloc_overflow)
4034 (info, (h ? &h->root : NULL), name, howto->name,
4035 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4038 case bfd_reloc_undefined:
4039 (*info->callbacks->undefined_symbol)
4040 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4043 case bfd_reloc_outofrange:
4044 msg = _("internal error: out of range error");
4047 case bfd_reloc_notsupported:
4048 msg = _("internal error: unsupported relocation error");
4051 case bfd_reloc_dangerous:
4052 msg = _("internal error: dangerous relocation");
4056 msg = _("internal error: unknown error");
4061 (*info->callbacks->warning) (info, msg, name, input_bfd,
4062 input_section, rel->r_offset);
4069 /* Finish up dynamic symbol handling. We set the contents of various
4070 dynamic sections here. */
4073 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
4074 struct bfd_link_info *info,
4075 struct elf_link_hash_entry *h,
4076 Elf_Internal_Sym *sym)
4078 struct tilegx_elf_link_hash_table *htab;
4080 htab = tilegx_elf_hash_table (info);
4081 BFD_ASSERT (htab != NULL);
4083 if (h->plt.offset != (bfd_vma) -1)
4088 Elf_Internal_Rela rela;
4091 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
4096 /* This symbol has an entry in the PLT. Set it up. */
4098 BFD_ASSERT (h->dynindx != -1);
4100 splt = htab->elf.splt;
4101 srela = htab->elf.srelplt;
4102 sgotplt = htab->elf.sgotplt;
4104 if (splt == NULL || srela == NULL)
4107 /* Fill in the entry in the procedure linkage table. */
4108 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
4109 h->plt.offset, &r_offset);
4111 /* Fill in the entry in the global offset table, which initially points
4112 to the beginning of the plt. */
4113 TILEGX_ELF_PUT_WORD (htab, output_bfd,
4114 splt->output_section->vma + splt->output_offset,
4115 sgotplt->contents + r_offset);
4117 /* Fill in the entry in the .rela.plt section. */
4118 rela.r_offset = (sgotplt->output_section->vma
4119 + sgotplt->output_offset
4122 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
4124 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
4125 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4127 if (!h->def_regular)
4129 /* Mark the symbol as undefined, rather than as defined in
4130 the .plt section. Leave the value alone. */
4131 sym->st_shndx = SHN_UNDEF;
4132 /* If the symbol is weak, we do need to clear the value.
4133 Otherwise, the PLT entry would provide a definition for
4134 the symbol even if the symbol wasn't defined anywhere,
4135 and so the symbol would never be NULL. */
4136 if (!h->ref_regular_nonweak)
4141 if (h->got.offset != (bfd_vma) -1
4142 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4143 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4147 Elf_Internal_Rela rela;
4149 /* This symbol has an entry in the GOT. Set it up. */
4151 sgot = htab->elf.sgot;
4152 srela = htab->elf.srelgot;
4153 BFD_ASSERT (sgot != NULL && srela != NULL);
4155 rela.r_offset = (sgot->output_section->vma
4156 + sgot->output_offset
4157 + (h->got.offset &~ (bfd_vma) 1));
4159 /* If this is a -Bsymbolic link, and the symbol is defined
4160 locally, we just want to emit a RELATIVE reloc. Likewise if
4161 the symbol was forced to be local because of a version file.
4162 The entry in the global offset table will already have been
4163 initialized in the relocate_section function. */
4164 if (bfd_link_pic (info)
4165 && (info->symbolic || h->dynindx == -1)
4168 asection *sec = h->root.u.def.section;
4169 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4170 rela.r_addend = (h->root.u.def.value
4171 + sec->output_section->vma
4172 + sec->output_offset);
4176 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4180 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4181 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4182 tilegx_elf_append_rela (output_bfd, srela, &rela);
4188 Elf_Internal_Rela rela;
4190 /* This symbols needs a copy reloc. Set it up. */
4191 BFD_ASSERT (h->dynindx != -1);
4193 if (h->root.u.def.section == htab->elf.sdynrelro)
4194 s = htab->elf.sreldynrelro;
4196 s = htab->elf.srelbss;
4197 BFD_ASSERT (s != NULL);
4199 rela.r_offset = (h->root.u.def.value
4200 + h->root.u.def.section->output_section->vma
4201 + h->root.u.def.section->output_offset);
4202 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4204 tilegx_elf_append_rela (output_bfd, s, &rela);
4207 /* Mark some specially defined symbols as absolute. */
4208 if (h == htab->elf.hdynamic
4209 || (h == htab->elf.hgot || h == htab->elf.hplt))
4210 sym->st_shndx = SHN_ABS;
4215 /* Finish up the dynamic sections. */
4218 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4219 bfd *dynobj, asection *sdyn,
4220 asection *splt ATTRIBUTE_UNUSED)
4222 struct tilegx_elf_link_hash_table *htab;
4223 const struct elf_backend_data *bed;
4224 bfd_byte *dyncon, *dynconend;
4227 htab = tilegx_elf_hash_table (info);
4228 BFD_ASSERT (htab != NULL);
4229 bed = get_elf_backend_data (output_bfd);
4230 dynsize = bed->s->sizeof_dyn;
4231 dynconend = sdyn->contents + sdyn->size;
4233 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4235 Elf_Internal_Dyn dyn;
4238 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4243 s = htab->elf.sgotplt;
4244 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4247 s = htab->elf.srelplt;
4248 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4251 s = htab->elf.srelplt;
4252 dyn.d_un.d_val = s->size;
4258 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4264 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4265 struct bfd_link_info *info)
4269 struct tilegx_elf_link_hash_table *htab;
4272 htab = tilegx_elf_hash_table (info);
4273 BFD_ASSERT (htab != NULL);
4274 dynobj = htab->elf.dynobj;
4276 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4278 if (elf_hash_table (info)->dynamic_sections_created)
4283 splt = htab->elf.splt;
4284 BFD_ASSERT (splt != NULL && sdyn != NULL);
4286 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4291 /* Fill in the head and tail entries in the procedure linkage table. */
4294 memcpy (splt->contents,
4295 ABI_64_P (output_bfd) ?
4296 tilegx64_plt0_entry : tilegx32_plt0_entry,
4299 memcpy (splt->contents + splt->size
4300 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
4301 ABI_64_P (output_bfd) ?
4302 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4304 /* Add padding so that the plt section is a multiple of its
4306 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4307 memset (splt->contents + splt->size - pad_size, 0, pad_size);
4310 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4314 if (htab->elf.sgotplt)
4316 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4319 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4323 if (htab->elf.sgotplt->size > 0)
4325 /* Write the first two entries in .got.plt, needed for the dynamic
4327 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4328 htab->elf.sgotplt->contents);
4329 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4330 htab->elf.sgotplt->contents
4331 + GOT_ENTRY_SIZE (htab));
4334 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4335 GOT_ENTRY_SIZE (htab);
4340 if (htab->elf.sgot->size > 0)
4342 /* Set the first entry in the global offset table to the address of
4343 the dynamic section. */
4344 bfd_vma val = (sdyn ?
4345 sdyn->output_section->vma + sdyn->output_offset :
4347 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4348 htab->elf.sgot->contents);
4351 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4352 GOT_ENTRY_SIZE (htab);
4360 /* Return address for Ith PLT stub in section PLT, for relocation REL
4361 or (bfd_vma) -1 if it should not be included. */
4364 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4365 const arelent *rel ATTRIBUTE_UNUSED)
4367 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4370 enum elf_reloc_type_class
4371 tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4372 const asection *rel_sec ATTRIBUTE_UNUSED,
4373 const Elf_Internal_Rela *rela)
4375 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4377 case R_TILEGX_RELATIVE:
4378 return reloc_class_relative;
4379 case R_TILEGX_JMP_SLOT:
4380 return reloc_class_plt;
4382 return reloc_class_copy;
4384 return reloc_class_normal;
4389 tilegx_additional_program_headers (bfd *abfd,
4390 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4392 /* Each .intrpt section specified by the user adds another PT_LOAD
4393 header since the sections are discontiguous. */
4394 static const char intrpt_sections[4][9] =
4396 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4401 for (i = 0; i < 4; i++)
4403 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4404 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4408 /* Add four "padding" headers in to leave room in case a custom linker
4409 script does something fancy. Otherwise ld complains that it ran
4410 out of program headers and refuses to link. */
4418 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4420 bfd *obfd = info->output_bfd;
4421 const char *targ1 = bfd_get_target (ibfd);
4422 const char *targ2 = bfd_get_target (obfd);
4424 if (strcmp (targ1, targ2) != 0)
4427 /* xgettext:c-format */
4428 (_("%B: Cannot link together %s and %s objects."),
4429 ibfd, targ1, targ2);
4430 bfd_set_error (bfd_error_bad_value);