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_executable (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;
1723 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1727 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1728 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1729 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1730 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1731 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1732 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1733 if (!bfd_link_executable (info))
1734 goto r_tilegx_plt32;
1737 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1738 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1739 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1740 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1741 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1742 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1743 BFD_ASSERT (bfd_link_pic (info));
1744 tls_type = GOT_TLS_GD;
1745 goto have_got_reference;
1747 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1748 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1749 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1750 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1751 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1752 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1753 tls_type = GOT_TLS_IE;
1754 if (!bfd_link_executable (info))
1755 info->flags |= DF_STATIC_TLS;
1756 goto have_got_reference;
1758 case R_TILEGX_IMM16_X0_HW0_GOT:
1759 case R_TILEGX_IMM16_X1_HW0_GOT:
1760 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1761 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1762 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1763 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1764 tls_type = GOT_NORMAL;
1768 /* This symbol requires a global offset table entry. */
1774 h->got.refcount += 1;
1775 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1779 bfd_signed_vma *local_got_refcounts;
1781 /* This is a global offset table entry for a local symbol. */
1782 local_got_refcounts = elf_local_got_refcounts (abfd);
1783 if (local_got_refcounts == NULL)
1787 size = symtab_hdr->sh_info;
1788 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1789 local_got_refcounts = ((bfd_signed_vma *)
1790 bfd_zalloc (abfd, size));
1791 if (local_got_refcounts == NULL)
1793 elf_local_got_refcounts (abfd) = local_got_refcounts;
1794 _bfd_tilegx_elf_local_got_tls_type (abfd)
1795 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1797 local_got_refcounts[r_symndx] += 1;
1798 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1801 /* If a TLS symbol is accessed using IE at least once,
1802 there is no point to use dynamic model for it. */
1803 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1804 && (old_tls_type != GOT_TLS_GD
1805 || tls_type != GOT_TLS_IE))
1807 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1808 tls_type = old_tls_type;
1812 /* xgettext:c-format */
1813 (_("%B: `%s' accessed both as normal and thread local symbol"),
1814 abfd, h ? h->root.root.string : "<local>");
1819 if (old_tls_type != tls_type)
1822 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1824 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1828 if (htab->elf.sgot == NULL)
1830 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1835 case R_TILEGX_TLS_GD_CALL:
1836 if (!bfd_link_executable (info))
1838 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1839 against __tls_get_addr. */
1840 struct bfd_link_hash_entry *bh = NULL;
1841 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1842 "__tls_get_addr", 0,
1843 bfd_und_section_ptr, 0,
1847 h = (struct elf_link_hash_entry *) bh;
1853 case R_TILEGX_JUMPOFF_X1_PLT:
1854 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1855 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1856 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1857 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1858 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1859 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1860 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1861 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1862 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1863 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1864 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1865 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1866 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1867 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
1868 /* This symbol requires a procedure linkage table entry. We
1869 actually build the entry in adjust_dynamic_symbol,
1870 because this might be a case of linking PIC code without
1871 linking in any dynamic objects, in which case we don't
1872 need to generate a procedure linkage table after all. */
1877 h->plt.refcount += 1;
1881 case R_TILEGX_64_PCREL:
1882 case R_TILEGX_32_PCREL:
1883 case R_TILEGX_16_PCREL:
1884 case R_TILEGX_8_PCREL:
1885 case R_TILEGX_IMM16_X0_HW0_PCREL:
1886 case R_TILEGX_IMM16_X1_HW0_PCREL:
1887 case R_TILEGX_IMM16_X0_HW1_PCREL:
1888 case R_TILEGX_IMM16_X1_HW1_PCREL:
1889 case R_TILEGX_IMM16_X0_HW2_PCREL:
1890 case R_TILEGX_IMM16_X1_HW2_PCREL:
1891 case R_TILEGX_IMM16_X0_HW3_PCREL:
1892 case R_TILEGX_IMM16_X1_HW3_PCREL:
1893 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1894 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1895 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1896 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1897 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1898 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1903 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1915 case R_TILEGX_HW0_LAST:
1916 case R_TILEGX_HW1_LAST:
1917 case R_TILEGX_HW2_LAST:
1919 case R_TILEGX_GLOB_DAT:
1920 case R_TILEGX_JMP_SLOT:
1921 case R_TILEGX_RELATIVE:
1922 case R_TILEGX_BROFF_X1:
1923 case R_TILEGX_JUMPOFF_X1:
1924 case R_TILEGX_IMM8_X0:
1925 case R_TILEGX_IMM8_Y0:
1926 case R_TILEGX_IMM8_X1:
1927 case R_TILEGX_IMM8_Y1:
1928 case R_TILEGX_DEST_IMM8_X1:
1929 case R_TILEGX_MT_IMM14_X1:
1930 case R_TILEGX_MF_IMM14_X1:
1931 case R_TILEGX_MMSTART_X0:
1932 case R_TILEGX_MMEND_X0:
1933 case R_TILEGX_SHAMT_X0:
1934 case R_TILEGX_SHAMT_X1:
1935 case R_TILEGX_SHAMT_Y0:
1936 case R_TILEGX_SHAMT_Y1:
1937 case R_TILEGX_IMM16_X0_HW0:
1938 case R_TILEGX_IMM16_X1_HW0:
1939 case R_TILEGX_IMM16_X0_HW1:
1940 case R_TILEGX_IMM16_X1_HW1:
1941 case R_TILEGX_IMM16_X0_HW2:
1942 case R_TILEGX_IMM16_X1_HW2:
1943 case R_TILEGX_IMM16_X0_HW3:
1944 case R_TILEGX_IMM16_X1_HW3:
1945 case R_TILEGX_IMM16_X0_HW0_LAST:
1946 case R_TILEGX_IMM16_X1_HW0_LAST:
1947 case R_TILEGX_IMM16_X0_HW1_LAST:
1948 case R_TILEGX_IMM16_X1_HW1_LAST:
1949 case R_TILEGX_IMM16_X0_HW2_LAST:
1950 case R_TILEGX_IMM16_X1_HW2_LAST:
1955 if (h != NULL && !bfd_link_pic (info))
1957 /* We may need a .plt entry if the function this reloc
1958 refers to is in a shared lib. */
1959 h->plt.refcount += 1;
1962 /* If we are creating a shared library, and this is a reloc
1963 against a global symbol, or a non PC relative reloc
1964 against a local symbol, then we need to copy the reloc
1965 into the shared library. However, if we are linking with
1966 -Bsymbolic, we do not need to copy a reloc against a
1967 global symbol which is defined in an object we are
1968 including in the link (i.e., DEF_REGULAR is set). At
1969 this point we have not seen all the input files, so it is
1970 possible that DEF_REGULAR is not set now but will be set
1971 later (it is never cleared). In case of a weak definition,
1972 DEF_REGULAR may be cleared later by a strong definition in
1973 a shared library. We account for that possibility below by
1974 storing information in the relocs_copied field of the hash
1975 table entry. A similar situation occurs when creating
1976 shared libraries and symbol visibility changes render the
1979 If on the other hand, we are creating an executable, we
1980 may need to keep relocations for symbols satisfied by a
1981 dynamic library if we manage to avoid copy relocs for the
1983 if ((bfd_link_pic (info)
1984 && (sec->flags & SEC_ALLOC) != 0
1985 && (! tilegx_elf_howto_table[r_type].pc_relative
1987 && (! info->symbolic
1988 || h->root.type == bfd_link_hash_defweak
1989 || !h->def_regular))))
1990 || (!bfd_link_pic (info)
1991 && (sec->flags & SEC_ALLOC) != 0
1993 && (h->root.type == bfd_link_hash_defweak
1994 || !h->def_regular)))
1996 struct tilegx_elf_dyn_relocs *p;
1997 struct tilegx_elf_dyn_relocs **head;
1999 /* When creating a shared object, we must copy these
2000 relocs into the output file. We create a reloc
2001 section in dynobj and make room for the reloc. */
2004 sreloc = _bfd_elf_make_dynamic_reloc_section
2005 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2012 /* If this is a global symbol, we count the number of
2013 relocations we need for this symbol. */
2016 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2019 /* Track dynamic relocs needed for local syms too.
2020 We really need local syms available to do this
2025 Elf_Internal_Sym *isym;
2027 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2032 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2036 vpp = &elf_section_data (s)->local_dynrel;
2037 head = (struct tilegx_elf_dyn_relocs **) vpp;
2041 if (p == NULL || p->sec != sec)
2043 bfd_size_type amt = sizeof *p;
2044 p = ((struct tilegx_elf_dyn_relocs *)
2045 bfd_alloc (htab->elf.dynobj, amt));
2056 if (tilegx_elf_howto_table[r_type].pc_relative)
2062 case R_TILEGX_GNU_VTINHERIT:
2063 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2067 case R_TILEGX_GNU_VTENTRY:
2068 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2082 tilegx_elf_gc_mark_hook (asection *sec,
2083 struct bfd_link_info *info,
2084 Elf_Internal_Rela *rel,
2085 struct elf_link_hash_entry *h,
2086 Elf_Internal_Sym *sym)
2090 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2092 case R_TILEGX_GNU_VTINHERIT:
2093 case R_TILEGX_GNU_VTENTRY:
2098 /* FIXME: The test here, in check_relocs and in relocate_section
2099 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2100 if (bfd_link_pic (info))
2102 struct bfd_link_hash_entry *bh;
2104 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2106 case R_TILEGX_TLS_GD_CALL:
2107 /* This reloc implicitly references __tls_get_addr. We know
2108 another reloc will reference the same symbol as the one
2109 on this reloc, so the real symbol and section will be
2110 gc marked when processing the other reloc. That lets
2111 us handle __tls_get_addr here. */
2113 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
2114 "__tls_get_addr", 0,
2115 bfd_und_section_ptr,
2119 h = (struct elf_link_hash_entry *) bh;
2120 BFD_ASSERT (h != NULL);
2122 if (h->is_weakalias)
2123 weakdef (h)->mark = 1;
2128 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2131 /* Find dynamic relocs for H that apply to read-only sections. */
2134 readonly_dynrelocs (struct elf_link_hash_entry *h)
2136 struct tilegx_elf_dyn_relocs *p;
2138 for (p = tilegx_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2140 asection *s = p->sec->output_section;
2142 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2148 /* Adjust a symbol defined by a dynamic object and referenced by a
2149 regular object. The current definition is in some section of the
2150 dynamic object, but we're not including those sections. We have to
2151 change the definition to something the rest of the link can
2155 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2156 struct elf_link_hash_entry *h)
2158 struct tilegx_elf_link_hash_table *htab;
2159 struct tilegx_elf_link_hash_entry * eh;
2160 struct tilegx_elf_dyn_relocs *p;
2164 htab = tilegx_elf_hash_table (info);
2165 BFD_ASSERT (htab != NULL);
2167 dynobj = htab->elf.dynobj;
2169 /* Make sure we know what is going on here. */
2170 BFD_ASSERT (dynobj != NULL
2175 && !h->def_regular)));
2177 /* If this is a function, put it in the procedure linkage table. We
2178 will fill in the contents of the procedure linkage table later
2179 (although we could actually do it here). */
2180 if (h->type == STT_FUNC || h->needs_plt)
2182 if (h->plt.refcount <= 0
2183 || SYMBOL_CALLS_LOCAL (info, h)
2184 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2185 && h->root.type == bfd_link_hash_undefweak))
2187 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2188 reloc in an input file, but the symbol was never referred
2189 to by a dynamic object, or if all references were garbage
2190 collected. In such a case, we don't actually need to build
2191 a procedure linkage table, and we can just do a
2192 R_TILEGX_JUMPOFF_X1 relocation instead. */
2193 h->plt.offset = (bfd_vma) -1;
2200 h->plt.offset = (bfd_vma) -1;
2202 /* If this is a weak symbol, and there is a real definition, the
2203 processor independent code will have arranged for us to see the
2204 real definition first, and we can just use the same value. */
2205 if (h->is_weakalias)
2207 struct elf_link_hash_entry *def = weakdef (h);
2208 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2209 h->root.u.def.section = def->root.u.def.section;
2210 h->root.u.def.value = def->root.u.def.value;
2214 /* This is a reference to a symbol defined by a dynamic object which
2215 is not a function. */
2217 /* If we are creating a shared library, we must presume that the
2218 only references to the symbol are via the global offset table.
2219 For such cases we need not do anything here; the relocations will
2220 be handled correctly by relocate_section. */
2221 if (bfd_link_pic (info))
2224 /* If there are no references to this symbol that do not use the
2225 GOT, we don't need to generate a copy reloc. */
2226 if (!h->non_got_ref)
2229 /* If -z nocopyreloc was given, we won't generate them either. */
2230 if (info->nocopyreloc)
2236 eh = (struct tilegx_elf_link_hash_entry *) h;
2237 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2239 s = p->sec->output_section;
2240 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2244 /* If we didn't find any dynamic relocs in read-only sections, then
2245 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2252 /* We must allocate the symbol in our .dynbss section, which will
2253 become part of the .bss section of the executable. There will be
2254 an entry for this symbol in the .dynsym section. The dynamic
2255 object will contain position independent code, so all references
2256 from the dynamic object to this symbol will go through the global
2257 offset table. The dynamic linker will use the .dynsym entry to
2258 determine the address it must put in the global offset table, so
2259 both the dynamic object and the regular object will refer to the
2260 same memory location for the variable. */
2262 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2263 to copy the initial value out of the dynamic object and into the
2264 runtime process image. We need to remember the offset into the
2265 .rel.bss section we are going to use. */
2266 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2268 s = htab->elf.sdynrelro;
2269 srel = htab->elf.sreldynrelro;
2273 s = htab->elf.sdynbss;
2274 srel = htab->elf.srelbss;
2276 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2278 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2282 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2285 /* Allocate space in .plt, .got and associated reloc sections for
2289 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2291 struct bfd_link_info *info;
2292 struct tilegx_elf_link_hash_table *htab;
2293 struct tilegx_elf_link_hash_entry *eh;
2294 struct tilegx_elf_dyn_relocs *p;
2296 if (h->root.type == bfd_link_hash_indirect)
2299 info = (struct bfd_link_info *) inf;
2300 htab = tilegx_elf_hash_table (info);
2301 BFD_ASSERT (htab != NULL);
2303 if (htab->elf.dynamic_sections_created
2304 && h->plt.refcount > 0)
2306 /* Make sure this symbol is output as a dynamic symbol.
2307 Undefined weak syms won't yet be marked as dynamic. */
2308 if (h->dynindx == -1
2309 && !h->forced_local)
2311 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2315 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2317 asection *s = htab->elf.splt;
2319 /* Allocate room for the header and tail. */
2322 s->size = PLT_ENTRY_SIZE;
2325 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
2327 /* If this symbol is not defined in a regular file, and we are
2328 not generating a shared library, then set the symbol to this
2329 location in the .plt. This is required to make function
2330 pointers compare as equal between the normal executable and
2331 the shared library. */
2332 if (! bfd_link_pic (info)
2335 h->root.u.def.section = s;
2336 h->root.u.def.value = h->plt.offset;
2339 /* Make room for this entry. */
2340 s->size += PLT_ENTRY_SIZE;
2342 /* We also need to make an entry in the .got.plt section. */
2343 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2345 /* We also need to make an entry in the .rela.plt section. */
2346 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2350 h->plt.offset = (bfd_vma) -1;
2356 h->plt.offset = (bfd_vma) -1;
2360 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2361 requiring no TLS entry. */
2362 if (h->got.refcount > 0
2363 && !htab->disable_le_transition
2364 && bfd_link_executable (info)
2366 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2367 h->got.offset = (bfd_vma) -1;
2368 else if (h->got.refcount > 0)
2372 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2374 /* Make sure this symbol is output as a dynamic symbol.
2375 Undefined weak syms won't yet be marked as dynamic. */
2376 if (h->dynindx == -1
2377 && !h->forced_local)
2379 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2384 h->got.offset = s->size;
2385 s->size += TILEGX_ELF_WORD_BYTES (htab);
2386 /* TLS_GD entries need 2 consecutive GOT slots. */
2387 if (tls_type == GOT_TLS_GD)
2388 s->size += TILEGX_ELF_WORD_BYTES (htab);
2389 dyn = htab->elf.dynamic_sections_created;
2390 /* TLS_IE needs one dynamic relocation,
2391 TLS_GD needs two if local symbol and two if global. */
2392 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2393 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2394 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2395 bfd_link_pic (info),
2397 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2400 h->got.offset = (bfd_vma) -1;
2402 eh = (struct tilegx_elf_link_hash_entry *) h;
2403 if (eh->dyn_relocs == NULL)
2406 /* In the shared -Bsymbolic case, discard space allocated for
2407 dynamic pc-relative relocs against symbols which turn out to be
2408 defined in regular objects. For the normal shared case, discard
2409 space for pc-relative relocs that have become local due to symbol
2410 visibility changes. */
2412 if (bfd_link_pic (info))
2414 if (SYMBOL_CALLS_LOCAL (info, h))
2416 struct tilegx_elf_dyn_relocs **pp;
2418 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2420 p->count -= p->pc_count;
2429 /* Also discard relocs on undefined weak syms with non-default
2431 if (eh->dyn_relocs != NULL
2432 && h->root.type == bfd_link_hash_undefweak)
2434 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2435 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2436 eh->dyn_relocs = NULL;
2438 /* Make sure undefined weak symbols are output as a dynamic
2440 else if (h->dynindx == -1
2441 && !h->forced_local)
2443 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2450 /* For the non-shared case, discard space for relocs against
2451 symbols which turn out to need copy relocs or are not
2457 || (htab->elf.dynamic_sections_created
2458 && (h->root.type == bfd_link_hash_undefweak
2459 || h->root.type == bfd_link_hash_undefined))))
2461 /* Make sure this symbol is output as a dynamic symbol.
2462 Undefined weak syms won't yet be marked as dynamic. */
2463 if (h->dynindx == -1
2464 && !h->forced_local)
2466 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2470 /* If that succeeded, we know we'll be keeping all the
2472 if (h->dynindx != -1)
2476 eh->dyn_relocs = NULL;
2481 /* Finally, allocate space. */
2482 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2484 asection *sreloc = elf_section_data (p->sec)->sreloc;
2485 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2491 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2492 read-only sections. */
2495 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2499 if (h->root.type == bfd_link_hash_indirect)
2502 sec = readonly_dynrelocs (h);
2505 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2507 info->flags |= DF_TEXTREL;
2508 info->callbacks->minfo
2509 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2510 sec->owner, h->root.root.string, sec);
2512 /* Not an error, just cut short the traversal. */
2518 /* Return true if the dynamic symbol for a given section should be
2519 omitted when creating a shared library. */
2522 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2523 struct bfd_link_info *info,
2526 /* We keep the .got section symbol so that explicit relocations
2527 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2528 can be turned into relocations against the .got symbol. */
2529 if (strcmp (p->name, ".got") == 0)
2532 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2536 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2537 struct bfd_link_info *info)
2539 struct tilegx_elf_link_hash_table *htab;
2544 htab = tilegx_elf_hash_table (info);
2545 BFD_ASSERT (htab != NULL);
2546 dynobj = htab->elf.dynobj;
2547 BFD_ASSERT (dynobj != NULL);
2549 if (elf_hash_table (info)->dynamic_sections_created)
2551 /* Set the contents of the .interp section to the interpreter. */
2552 if (bfd_link_executable (info) && !info->nointerp)
2554 s = bfd_get_linker_section (dynobj, ".interp");
2555 BFD_ASSERT (s != NULL);
2556 s->size = strlen (htab->dynamic_interpreter) + 1;
2557 s->contents = (unsigned char *) htab->dynamic_interpreter;
2561 /* Set up .got offsets for local syms, and space for local dynamic
2563 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2565 bfd_signed_vma *local_got;
2566 bfd_signed_vma *end_local_got;
2567 char *local_tls_type;
2568 bfd_size_type locsymcount;
2569 Elf_Internal_Shdr *symtab_hdr;
2572 if (! is_tilegx_elf (ibfd))
2575 for (s = ibfd->sections; s != NULL; s = s->next)
2577 struct tilegx_elf_dyn_relocs *p;
2579 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2581 if (!bfd_is_abs_section (p->sec)
2582 && bfd_is_abs_section (p->sec->output_section))
2584 /* Input section has been discarded, either because
2585 it is a copy of a linkonce section or due to
2586 linker script /DISCARD/, so we'll be discarding
2589 else if (p->count != 0)
2591 srel = elf_section_data (p->sec)->sreloc;
2592 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2593 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2595 info->flags |= DF_TEXTREL;
2597 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2598 p->sec->owner, p->sec);
2604 local_got = elf_local_got_refcounts (ibfd);
2608 symtab_hdr = &elf_symtab_hdr (ibfd);
2609 locsymcount = symtab_hdr->sh_info;
2610 end_local_got = local_got + locsymcount;
2611 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2613 srel = htab->elf.srelgot;
2614 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2618 *local_got = s->size;
2619 s->size += TILEGX_ELF_WORD_BYTES (htab);
2620 if (*local_tls_type == GOT_TLS_GD)
2621 s->size += TILEGX_ELF_WORD_BYTES (htab);
2622 if (bfd_link_pic (info)
2623 || *local_tls_type == GOT_TLS_GD
2624 || *local_tls_type == GOT_TLS_IE)
2625 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2628 *local_got = (bfd_vma) -1;
2632 /* Allocate global sym .plt and .got entries, and space for global
2633 sym dynamic relocs. */
2634 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2636 if (elf_hash_table (info)->dynamic_sections_created)
2638 /* If the .got section is more than 0x8000 bytes, we add
2639 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2640 bit relocations have a greater chance of working. */
2641 if (htab->elf.sgot->size >= 0x8000
2642 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2643 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2646 if (htab->elf.sgotplt)
2648 struct elf_link_hash_entry *got;
2649 got = elf_link_hash_lookup (elf_hash_table (info),
2650 "_GLOBAL_OFFSET_TABLE_",
2651 FALSE, FALSE, FALSE);
2653 /* Don't allocate .got.plt section if there are no GOT nor PLT
2654 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2656 || !got->ref_regular_nonweak)
2657 && (htab->elf.sgotplt->size
2658 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2659 && (htab->elf.splt == NULL
2660 || htab->elf.splt->size == 0)
2661 && (htab->elf.sgot == NULL
2662 || (htab->elf.sgot->size
2663 == get_elf_backend_data (output_bfd)->got_header_size)))
2664 htab->elf.sgotplt->size = 0;
2667 /* The check_relocs and adjust_dynamic_symbol entry points have
2668 determined the sizes of the various dynamic sections. Allocate
2670 for (s = dynobj->sections; s != NULL; s = s->next)
2672 if ((s->flags & SEC_LINKER_CREATED) == 0)
2675 if (s == htab->elf.splt
2676 || s == htab->elf.sgot
2677 || s == htab->elf.sgotplt
2678 || s == htab->elf.sdynbss
2679 || s == htab->elf.sdynrelro)
2681 /* Strip this section if we don't need it; see the
2684 else if (strncmp (s->name, ".rela", 5) == 0)
2688 /* We use the reloc_count field as a counter if we need
2689 to copy relocs into the output file. */
2695 /* It's not one of our sections. */
2701 /* If we don't need this section, strip it from the
2702 output file. This is mostly to handle .rela.bss and
2703 .rela.plt. We must create both sections in
2704 create_dynamic_sections, because they must be created
2705 before the linker maps input sections to output
2706 sections. The linker does that before
2707 adjust_dynamic_symbol is called, and it is that
2708 function which decides whether anything needs to go
2709 into these sections. */
2710 s->flags |= SEC_EXCLUDE;
2714 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2717 /* Allocate memory for the section contents. Zero the memory
2718 for the benefit of .rela.plt, which has 4 unused entries
2719 at the beginning, and we don't want garbage. */
2720 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2721 if (s->contents == NULL)
2725 if (elf_hash_table (info)->dynamic_sections_created)
2727 /* Add some entries to the .dynamic section. We fill in the
2728 values later, in tilegx_elf_finish_dynamic_sections, but we
2729 must add the entries now so that we get the correct size for
2730 the .dynamic section. The DT_DEBUG entry is filled in by the
2731 dynamic linker and used by the debugger. */
2732 #define add_dynamic_entry(TAG, VAL) \
2733 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2735 if (bfd_link_executable (info))
2737 if (!add_dynamic_entry (DT_DEBUG, 0))
2741 if (htab->elf.srelplt->size != 0)
2743 if (!add_dynamic_entry (DT_PLTGOT, 0)
2744 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2745 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2746 || !add_dynamic_entry (DT_JMPREL, 0))
2750 if (!add_dynamic_entry (DT_RELA, 0)
2751 || !add_dynamic_entry (DT_RELASZ, 0)
2752 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2755 /* If any dynamic relocs apply to a read-only section,
2756 then we need a DT_TEXTREL entry. */
2757 if ((info->flags & DF_TEXTREL) == 0)
2758 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2760 if (info->flags & DF_TEXTREL)
2762 if (!add_dynamic_entry (DT_TEXTREL, 0))
2766 #undef add_dynamic_entry
2771 /* Return the base VMA address which should be subtracted from real addresses
2772 when resolving @dtpoff relocation.
2773 This is PT_TLS segment p_vaddr. */
2776 dtpoff_base (struct bfd_link_info *info)
2778 /* If tls_sec is NULL, we should have signalled an error already. */
2779 if (elf_hash_table (info)->tls_sec == NULL)
2781 return elf_hash_table (info)->tls_sec->vma;
2784 /* Return the relocation value for @tpoff relocation. */
2787 tpoff (struct bfd_link_info *info, bfd_vma address)
2789 struct elf_link_hash_table *htab = elf_hash_table (info);
2791 /* If tls_sec is NULL, we should have signalled an error already. */
2792 if (htab->tls_sec == NULL)
2795 return (address - htab->tls_sec->vma);
2798 /* Copy SIZE bits from FROM to TO at address ADDR. */
2801 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2804 for (i = 0; i < size; i++)
2806 int from_byte = (from + i) / 8;
2807 int from_bit = (from + i) % 8;
2808 int to_byte = (to + i) / 8;
2809 int to_bit = (to + i) % 8;
2810 bfd_byte to_mask = 1 << to_bit;
2811 addr[to_byte] = (addr[to_byte] & ~to_mask)
2812 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2816 /* Replace the MASK bits in ADDR with those in INSN, for the next
2817 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2820 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2821 const bfd_byte *insn)
2824 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2826 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2830 /* Mask to extract the bits corresponding to an instruction in a
2831 specific pipe of a bundle. */
2832 static const bfd_byte insn_mask_X1[] = {
2833 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2836 /* Mask to extract the bits corresponding to an instruction in a
2837 specific pipe of a bundle, minus the destination operand and the
2838 first source operand. */
2839 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2840 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2843 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2844 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2847 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2848 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2850 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2851 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2854 /* Mask to extract the bits corresponding to an instruction in a
2855 specific pipe of a bundle, minus the register operands. */
2856 static const bfd_byte insn_mask_X0_no_operand[] = {
2857 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2860 static const bfd_byte insn_mask_X1_no_operand[] = {
2861 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2864 static const bfd_byte insn_mask_Y0_no_operand[] = {
2865 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2868 static const bfd_byte insn_mask_Y1_no_operand[] = {
2869 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2872 /* Various instructions synthesized to support tls references. */
2874 /* ld r0, r0 in the X1 pipe, used for tls ie. */
2875 static const bfd_byte insn_tls_ie_ld_X1[] = {
2876 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2879 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
2880 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
2881 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
2884 /* add r0, r0, tp in various pipes, used for tls ie. */
2885 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2886 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
2888 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2889 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
2892 /* addx r0, r0, tp in various pipes, used for tls ie. */
2893 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
2894 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
2896 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
2897 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
2900 /* move r0, r0 in various pipes, used for tls gd. */
2901 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2902 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
2904 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2905 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
2908 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
2909 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
2911 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
2912 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
2914 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
2915 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
2917 /* Relocate an TILEGX ELF section.
2919 The RELOCATE_SECTION function is called by the new ELF backend linker
2920 to handle the relocations for a section.
2922 The relocs are always passed as Rela structures.
2924 This function is responsible for adjusting the section contents as
2925 necessary, and (if generating a relocatable output file) adjusting
2926 the reloc addend as necessary.
2928 This function does not have to worry about setting the reloc
2929 address or the reloc symbol index.
2931 LOCAL_SYMS is a pointer to the swapped in local symbols.
2933 LOCAL_SECTIONS is an array giving the section in the input file
2934 corresponding to the st_shndx field of each local symbol.
2936 The global hash table entry for the global symbols can be found
2937 via elf_sym_hashes (input_bfd).
2939 When generating relocatable output, this function must handle
2940 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2941 going to be the section symbol corresponding to the output
2942 section, which means that the addend must be adjusted
2946 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2947 bfd *input_bfd, asection *input_section,
2948 bfd_byte *contents, Elf_Internal_Rela *relocs,
2949 Elf_Internal_Sym *local_syms,
2950 asection **local_sections)
2952 struct tilegx_elf_link_hash_table *htab;
2953 Elf_Internal_Shdr *symtab_hdr;
2954 struct elf_link_hash_entry **sym_hashes;
2955 bfd_vma *local_got_offsets;
2958 Elf_Internal_Rela *rel;
2959 Elf_Internal_Rela *relend;
2962 htab = tilegx_elf_hash_table (info);
2963 BFD_ASSERT (htab != NULL);
2964 symtab_hdr = &elf_symtab_hdr (input_bfd);
2965 sym_hashes = elf_sym_hashes (input_bfd);
2966 local_got_offsets = elf_local_got_offsets (input_bfd);
2968 if (elf_hash_table (info)->hgot == NULL)
2971 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2973 sreloc = elf_section_data (input_section)->sreloc;
2976 num_relocs = input_section->reloc_count;
2977 relend = relocs + num_relocs;
2978 for (; rel < relend; rel++)
2980 int r_type, tls_type;
2981 bfd_boolean is_tls_iele, is_tls_le;
2982 reloc_howto_type *howto;
2983 unsigned long r_symndx;
2984 struct elf_link_hash_entry *h;
2985 Elf_Internal_Sym *sym;
2986 tilegx_create_func create_func;
2989 bfd_reloc_status_type r;
2992 bfd_boolean is_plt = FALSE;
2993 bfd_boolean resolved_to_zero;
2994 bfd_boolean unresolved_reloc;
2996 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2997 if (r_type == R_TILEGX_GNU_VTINHERIT
2998 || r_type == R_TILEGX_GNU_VTENTRY)
3001 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3002 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
3004 howto = tilegx_elf_howto_table + r_type;
3006 /* This is a final link. */
3007 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3011 unresolved_reloc = FALSE;
3012 if (r_symndx < symtab_hdr->sh_info)
3014 sym = local_syms + r_symndx;
3015 sec = local_sections[r_symndx];
3016 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3020 bfd_boolean warned ATTRIBUTE_UNUSED;
3021 bfd_boolean ignored ATTRIBUTE_UNUSED;
3023 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3024 r_symndx, symtab_hdr, sym_hashes,
3026 unresolved_reloc, warned, ignored);
3029 /* To avoid generating warning messages about truncated
3030 relocations, set the relocation's address to be the same as
3031 the start of this section. */
3032 if (input_section->output_section != NULL)
3033 relocation = input_section->output_section->vma;
3039 if (sec != NULL && discarded_section (sec))
3040 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3041 rel, 1, relend, howto, 0, contents);
3043 if (bfd_link_relocatable (info))
3047 name = h->root.root.string;
3050 name = (bfd_elf_string_from_elf_section
3051 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3052 if (name == NULL || *name == '\0')
3053 name = bfd_section_name (input_bfd, sec);
3058 case R_TILEGX_TLS_GD_CALL:
3059 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3060 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3061 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3062 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3063 case R_TILEGX_IMM8_X0_TLS_ADD:
3064 case R_TILEGX_IMM8_Y0_TLS_ADD:
3065 case R_TILEGX_IMM8_X1_TLS_ADD:
3066 case R_TILEGX_IMM8_Y1_TLS_ADD:
3067 tls_type = GOT_UNKNOWN;
3068 if (h == NULL && local_got_offsets)
3070 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3072 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3074 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
3075 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3076 && bfd_link_executable (info)
3077 && (h == NULL || h->dynindx == -1));
3079 if (r_type == R_TILEGX_TLS_GD_CALL)
3084 tilegx_replace_insn (contents + rel->r_offset,
3085 insn_mask_X1, insn_move_X0X1);
3088 else if (is_tls_iele)
3091 if (ABI_64_P (output_bfd))
3092 tilegx_replace_insn (contents + rel->r_offset,
3093 insn_mask_X1, insn_tls_ie_ld_X1);
3095 tilegx_replace_insn (contents + rel->r_offset,
3096 insn_mask_X1, insn_tls_ie_ld4s_X1);
3101 h = (struct elf_link_hash_entry *)
3102 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3104 BFD_ASSERT (h != NULL);
3105 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3106 howto = tilegx_elf_howto_table + r_type;
3108 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3109 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3110 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3111 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3113 bfd_boolean is_pipe0 =
3114 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3115 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3116 bfd_boolean is_X0X1 =
3117 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3118 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3119 int dest_begin = is_pipe0 ? 0 : 31;
3121 const bfd_byte *insn;
3122 const bfd_byte *mask = NULL;
3126 /* 1. copy dest operand into the first source operand.
3127 2. change the opcode to "move". */
3128 src_begin = is_pipe0 ? 6 : 37;
3129 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3133 case R_TILEGX_IMM8_X0_TLS_ADD:
3134 mask = insn_mask_X0_no_dest_no_srca;
3136 case R_TILEGX_IMM8_X1_TLS_ADD:
3137 mask = insn_mask_X1_no_dest_no_srca;
3139 case R_TILEGX_IMM8_Y0_TLS_ADD:
3140 mask = insn_mask_Y0_no_dest_no_srca;
3142 case R_TILEGX_IMM8_Y1_TLS_ADD:
3143 mask = insn_mask_Y1_no_dest_no_srca;
3149 /* 1. copy dest operand into the second source operand.
3150 2. change the opcode to "add". */
3151 src_begin = is_pipe0 ? 12 : 43;
3152 if (ABI_64_P (output_bfd))
3153 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3155 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3159 case R_TILEGX_IMM8_X0_TLS_ADD:
3160 mask = insn_mask_X0_no_operand;
3162 case R_TILEGX_IMM8_X1_TLS_ADD:
3163 mask = insn_mask_X1_no_operand;
3165 case R_TILEGX_IMM8_Y0_TLS_ADD:
3166 mask = insn_mask_Y0_no_operand;
3168 case R_TILEGX_IMM8_Y1_TLS_ADD:
3169 mask = insn_mask_Y1_no_operand;
3174 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3176 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3182 const bfd_byte *mask = NULL;
3183 const bfd_byte *add_insn = NULL;
3184 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3188 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3189 add_insn = is_tls_iele
3190 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3191 : insn_tls_gd_add_X0X1;
3192 mask = insn_mask_X0_no_dest_no_srca;
3194 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3195 add_insn = is_tls_iele
3196 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3197 : insn_tls_gd_add_X0X1;
3198 mask = insn_mask_X1_no_dest_no_srca;
3200 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3201 add_insn = is_tls_iele
3202 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3203 : insn_tls_gd_add_Y0Y1;
3204 mask = insn_mask_Y0_no_dest_no_srca;
3206 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3207 add_insn = is_tls_iele
3208 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3209 : insn_tls_gd_add_Y0Y1;
3210 mask = insn_mask_Y1_no_dest_no_srca;
3214 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3219 case R_TILEGX_TLS_IE_LOAD:
3220 if (!input_section->sec_flg0
3221 && bfd_link_executable (info)
3222 && (h == NULL || h->dynindx == -1))
3225 tilegx_replace_insn (contents + rel->r_offset,
3226 insn_mask_X1_no_dest_no_srca,
3232 if (ABI_64_P (output_bfd))
3233 tilegx_replace_insn (contents + rel->r_offset,
3234 insn_mask_X1_no_dest_no_srca,
3237 tilegx_replace_insn (contents + rel->r_offset,
3238 insn_mask_X1_no_dest_no_srca,
3239 insn_tls_ie_ld4s_X1);
3247 resolved_to_zero = (h != NULL
3248 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
3252 case R_TILEGX_IMM16_X0_HW0_GOT:
3253 case R_TILEGX_IMM16_X1_HW0_GOT:
3254 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3255 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3256 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3257 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3258 /* Relocation is to the entry for this symbol in the global
3260 if (htab->elf.sgot == NULL)
3267 off = h->got.offset;
3268 BFD_ASSERT (off != (bfd_vma) -1);
3269 dyn = elf_hash_table (info)->dynamic_sections_created;
3271 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3272 bfd_link_pic (info),
3274 || (bfd_link_pic (info)
3275 && SYMBOL_REFERENCES_LOCAL (info, h)))
3277 /* This is actually a static link, or it is a
3278 -Bsymbolic link and the symbol is defined
3279 locally, or the symbol was forced to be local
3280 because of a version file. We must initialize
3281 this entry in the global offset table. Since the
3282 offset must always be a multiple
3283 of 8 for 64-bit, we use the least significant bit
3284 to record whether we have initialized it already.
3286 When doing a dynamic link, we create a .rela.got
3287 relocation entry to initialize the value. This
3288 is done in the finish_dynamic_symbol routine. */
3293 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3294 htab->elf.sgot->contents + off);
3299 unresolved_reloc = FALSE;
3303 BFD_ASSERT (local_got_offsets != NULL
3304 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3306 off = local_got_offsets[r_symndx];
3308 /* The offset must always be a multiple of 8 on 64-bit.
3309 We use the least significant bit to record
3310 whether we have already processed this entry. */
3315 if (bfd_link_pic (info))
3318 Elf_Internal_Rela outrel;
3320 /* We need to generate a R_TILEGX_RELATIVE reloc
3321 for the dynamic linker. */
3322 s = htab->elf.srelgot;
3323 BFD_ASSERT (s != NULL);
3325 outrel.r_offset = (htab->elf.sgot->output_section->vma
3326 + htab->elf.sgot->output_offset
3329 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3330 outrel.r_addend = relocation;
3332 tilegx_elf_append_rela (output_bfd, s, &outrel);
3335 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3336 htab->elf.sgot->contents + off);
3337 local_got_offsets[r_symndx] |= 1;
3340 relocation = off - got_base;
3343 case R_TILEGX_JUMPOFF_X1_PLT:
3344 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3345 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3346 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3347 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3348 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3349 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3350 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3351 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3352 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3353 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3354 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3355 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3356 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3357 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
3358 /* Relocation is to the entry for this symbol in the
3359 procedure linkage table. */
3360 BFD_ASSERT (h != NULL);
3362 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3364 /* We didn't make a PLT entry for this symbol. This
3365 happens when statically linking PIC code, or when
3366 using -Bsymbolic. */
3370 relocation = (htab->elf.splt->output_section->vma
3371 + htab->elf.splt->output_offset
3373 unresolved_reloc = FALSE;
3376 case R_TILEGX_64_PCREL:
3377 case R_TILEGX_32_PCREL:
3378 case R_TILEGX_16_PCREL:
3379 case R_TILEGX_8_PCREL:
3380 case R_TILEGX_IMM16_X0_HW0_PCREL:
3381 case R_TILEGX_IMM16_X1_HW0_PCREL:
3382 case R_TILEGX_IMM16_X0_HW1_PCREL:
3383 case R_TILEGX_IMM16_X1_HW1_PCREL:
3384 case R_TILEGX_IMM16_X0_HW2_PCREL:
3385 case R_TILEGX_IMM16_X1_HW2_PCREL:
3386 case R_TILEGX_IMM16_X0_HW3_PCREL:
3387 case R_TILEGX_IMM16_X1_HW3_PCREL:
3388 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3389 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3390 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3391 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3392 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3393 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3395 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3406 case R_TILEGX_HW0_LAST:
3407 case R_TILEGX_HW1_LAST:
3408 case R_TILEGX_HW2_LAST:
3410 case R_TILEGX_GLOB_DAT:
3411 case R_TILEGX_JMP_SLOT:
3412 case R_TILEGX_RELATIVE:
3413 case R_TILEGX_BROFF_X1:
3414 case R_TILEGX_JUMPOFF_X1:
3415 case R_TILEGX_IMM8_X0:
3416 case R_TILEGX_IMM8_Y0:
3417 case R_TILEGX_IMM8_X1:
3418 case R_TILEGX_IMM8_Y1:
3419 case R_TILEGX_DEST_IMM8_X1:
3420 case R_TILEGX_MT_IMM14_X1:
3421 case R_TILEGX_MF_IMM14_X1:
3422 case R_TILEGX_MMSTART_X0:
3423 case R_TILEGX_MMEND_X0:
3424 case R_TILEGX_SHAMT_X0:
3425 case R_TILEGX_SHAMT_X1:
3426 case R_TILEGX_SHAMT_Y0:
3427 case R_TILEGX_SHAMT_Y1:
3428 case R_TILEGX_IMM16_X0_HW0:
3429 case R_TILEGX_IMM16_X1_HW0:
3430 case R_TILEGX_IMM16_X0_HW1:
3431 case R_TILEGX_IMM16_X1_HW1:
3432 case R_TILEGX_IMM16_X0_HW2:
3433 case R_TILEGX_IMM16_X1_HW2:
3434 case R_TILEGX_IMM16_X0_HW3:
3435 case R_TILEGX_IMM16_X1_HW3:
3436 case R_TILEGX_IMM16_X0_HW0_LAST:
3437 case R_TILEGX_IMM16_X1_HW0_LAST:
3438 case R_TILEGX_IMM16_X0_HW1_LAST:
3439 case R_TILEGX_IMM16_X1_HW1_LAST:
3440 case R_TILEGX_IMM16_X0_HW2_LAST:
3441 case R_TILEGX_IMM16_X1_HW2_LAST:
3442 if ((input_section->flags & SEC_ALLOC) == 0)
3445 if ((bfd_link_pic (info)
3447 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3448 && !resolved_to_zero)
3449 || h->root.type != bfd_link_hash_undefweak)
3450 && (! howto->pc_relative
3451 || !SYMBOL_CALLS_LOCAL (info, h)))
3452 || (!bfd_link_pic (info)
3458 || h->root.type == bfd_link_hash_undefweak
3459 || h->root.type == bfd_link_hash_undefined)))
3461 Elf_Internal_Rela outrel;
3462 bfd_boolean skip, relocate = FALSE;
3464 /* When generating a shared object, these relocations
3465 are copied into the output file to be resolved at run
3468 BFD_ASSERT (sreloc != NULL);
3473 _bfd_elf_section_offset (output_bfd, info, input_section,
3475 if (outrel.r_offset == (bfd_vma) -1)
3477 else if (outrel.r_offset == (bfd_vma) -2)
3478 skip = TRUE, relocate = TRUE;
3479 outrel.r_offset += (input_section->output_section->vma
3480 + input_section->output_offset);
3484 case R_TILEGX_64_PCREL:
3485 case R_TILEGX_32_PCREL:
3486 case R_TILEGX_16_PCREL:
3487 case R_TILEGX_8_PCREL:
3488 /* If the symbol is not dynamic, we should not keep
3489 a dynamic relocation. But an .rela.* slot has been
3490 allocated for it, output R_TILEGX_NONE.
3491 FIXME: Add code tracking needed dynamic relocs as
3493 if (h->dynindx == -1)
3494 skip = TRUE, relocate = TRUE;
3499 memset (&outrel, 0, sizeof outrel);
3500 /* h->dynindx may be -1 if the symbol was marked to
3502 else if (h != NULL &&
3505 || !bfd_link_pic (info)
3506 || !SYMBOLIC_BIND (info, h)
3507 || !h->def_regular))
3509 BFD_ASSERT (h->dynindx != -1);
3510 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3511 outrel.r_addend = rel->r_addend;
3515 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3517 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3519 outrel.r_addend = relocation + rel->r_addend;
3525 outrel.r_addend = relocation + rel->r_addend;
3528 sec = htab->elf.splt;
3530 if (bfd_is_abs_section (sec))
3532 else if (sec == NULL || sec->owner == NULL)
3534 bfd_set_error (bfd_error_bad_value);
3541 /* We are turning this relocation into one
3542 against a section symbol. It would be
3543 proper to subtract the symbol's value,
3544 osec->vma, from the emitted reloc addend,
3545 but ld.so expects buggy relocs. */
3546 osec = sec->output_section;
3547 indx = elf_section_data (osec)->dynindx;
3551 osec = htab->elf.text_index_section;
3552 indx = elf_section_data (osec)->dynindx;
3555 /* FIXME: we really should be able to link non-pic
3556 shared libraries. */
3561 (_("%B: probably compiled without -fPIC?"),
3563 bfd_set_error (bfd_error_bad_value);
3568 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3573 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3575 /* This reloc will be computed at runtime, so there's no
3576 need to do anything now. */
3582 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3583 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3584 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3585 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3586 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3587 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3588 if (!bfd_link_executable (info))
3590 Elf_Internal_Rela outrel;
3593 BFD_ASSERT (sreloc != NULL);
3596 _bfd_elf_section_offset (output_bfd, info, input_section,
3598 if (outrel.r_offset == (bfd_vma) -1)
3600 else if (outrel.r_offset == (bfd_vma) -2)
3602 outrel.r_offset += (input_section->output_section->vma
3603 + input_section->output_offset);
3605 memset (&outrel, 0, sizeof outrel);
3608 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3609 outrel.r_addend = relocation - dtpoff_base (info)
3613 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3616 relocation = tpoff (info, relocation);
3619 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3620 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3621 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3622 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3623 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3624 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3625 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3626 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3627 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3628 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3629 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3630 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3631 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3632 input_section->sec_flg0);
3633 tls_type = GOT_UNKNOWN;
3634 if (h == NULL && local_got_offsets)
3636 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3639 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3640 if (bfd_link_executable (info)
3642 && tls_type == GOT_TLS_IE)
3643 r_type = (!input_section->sec_flg0
3644 ? tilegx_tls_translate_to_le (r_type)
3645 : tilegx_tls_translate_to_ie (r_type));
3648 if (tls_type == GOT_TLS_IE)
3649 r_type = tilegx_tls_translate_to_ie (r_type);
3651 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3652 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3653 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3654 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3655 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3656 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3658 relocation = tpoff (info, relocation);
3664 off = h->got.offset;
3669 BFD_ASSERT (local_got_offsets != NULL);
3670 off = local_got_offsets[r_symndx];
3671 local_got_offsets[r_symndx] |= 1;
3674 if (htab->elf.sgot == NULL)
3681 Elf_Internal_Rela outrel;
3683 bfd_boolean need_relocs = FALSE;
3685 if (htab->elf.srelgot == NULL)
3691 dyn = htab->elf.dynamic_sections_created;
3693 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3694 bfd_link_pic (info),
3696 && (!bfd_link_pic (info)
3697 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3703 /* The GOT entries have not been initialized yet. Do it
3704 now, and emit any relocations. */
3705 if ((bfd_link_pic (info) || indx != 0)
3707 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3708 || h->root.type != bfd_link_hash_undefweak))
3713 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3714 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3715 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3716 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3717 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3718 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3720 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3721 htab->elf.sgot->contents + off);
3722 outrel.r_offset = (htab->elf.sgot->output_section->vma
3723 + htab->elf.sgot->output_offset + off);
3724 outrel.r_addend = 0;
3726 outrel.r_addend = relocation - dtpoff_base (info);
3727 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3728 TILEGX_ELF_TPOFF_RELOC (htab));
3729 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3731 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3732 tpoff (info, relocation),
3733 htab->elf.sgot->contents + off);
3737 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3738 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3739 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3740 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3741 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3742 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3744 outrel.r_offset = (htab->elf.sgot->output_section->vma
3745 + htab->elf.sgot->output_offset + off);
3746 outrel.r_addend = 0;
3747 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3748 TILEGX_ELF_DTPMOD_RELOC (htab));
3749 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3750 htab->elf.sgot->contents + off);
3751 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3754 BFD_ASSERT (! unresolved_reloc);
3755 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3756 relocation - dtpoff_base (info),
3757 (htab->elf.sgot->contents + off +
3758 TILEGX_ELF_WORD_BYTES (htab)));
3762 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3763 (htab->elf.sgot->contents + off +
3764 TILEGX_ELF_WORD_BYTES (htab)));
3765 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3766 TILEGX_ELF_DTPOFF_RELOC (htab));
3767 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3768 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3773 /* If we are not emitting relocations for a
3774 general dynamic reference, then we must be in a
3775 static link or an executable link with the
3776 symbol binding locally. Mark it as belonging
3777 to module 1, the executable. */
3778 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3779 htab->elf.sgot->contents + off );
3780 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3781 relocation - dtpoff_base (info),
3782 htab->elf.sgot->contents + off +
3783 TILEGX_ELF_WORD_BYTES (htab));
3789 if (off >= (bfd_vma) -2)
3792 relocation = off - got_base;
3793 unresolved_reloc = FALSE;
3794 howto = tilegx_elf_howto_table + r_type;
3801 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3802 because such sections are not SEC_ALLOC and thus ld.so will
3803 not process them. */
3804 if (unresolved_reloc
3805 && !((input_section->flags & SEC_DEBUGGING) != 0
3807 && _bfd_elf_section_offset (output_bfd, info, input_section,
3808 rel->r_offset) != (bfd_vma) -1)
3810 /* xgettext:c-format */
3811 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
3816 h->root.root.string);
3818 r = bfd_reloc_continue;
3820 /* Get the operand creation function, if any. */
3821 create_func = reloc_to_create_func[r_type];
3822 if (create_func == NULL)
3824 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3825 contents, rel->r_offset,
3826 relocation, rel->r_addend);
3830 if (howto->pc_relative)
3833 input_section->output_section->vma + input_section->output_offset;
3834 if (howto->pcrel_offset)
3835 relocation -= rel->r_offset;
3840 /* Add the relocation addend if any to the final target value */
3841 relocation += rel->r_addend;
3843 /* Do basic range checking */
3844 r = bfd_check_overflow (howto->complain_on_overflow,
3847 TILEGX_ELF_WORD_BYTES (htab) * 8,
3851 * Write the relocated value out into the raw section data.
3852 * Don't put a relocation out in the .rela section.
3854 tilegx_bundle_bits mask = create_func(-1);
3855 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3857 /* Only touch bytes while the mask is not 0, so we
3858 don't write to out of bounds memory if this is actually
3859 a 16-bit switch instruction. */
3860 for (data = contents + rel->r_offset; mask != 0; data++)
3862 bfd_byte byte_mask = (bfd_byte)mask;
3863 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3869 if (r != bfd_reloc_ok)
3871 const char *msg = NULL;
3875 case bfd_reloc_overflow:
3876 (*info->callbacks->reloc_overflow)
3877 (info, (h ? &h->root : NULL), name, howto->name,
3878 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3881 case bfd_reloc_undefined:
3882 (*info->callbacks->undefined_symbol)
3883 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3886 case bfd_reloc_outofrange:
3887 msg = _("internal error: out of range error");
3890 case bfd_reloc_notsupported:
3891 msg = _("internal error: unsupported relocation error");
3894 case bfd_reloc_dangerous:
3895 msg = _("internal error: dangerous relocation");
3899 msg = _("internal error: unknown error");
3904 (*info->callbacks->warning) (info, msg, name, input_bfd,
3905 input_section, rel->r_offset);
3912 /* Finish up dynamic symbol handling. We set the contents of various
3913 dynamic sections here. */
3916 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
3917 struct bfd_link_info *info,
3918 struct elf_link_hash_entry *h,
3919 Elf_Internal_Sym *sym)
3921 struct tilegx_elf_link_hash_table *htab;
3923 htab = tilegx_elf_hash_table (info);
3924 BFD_ASSERT (htab != NULL);
3926 if (h->plt.offset != (bfd_vma) -1)
3931 Elf_Internal_Rela rela;
3934 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
3939 /* This symbol has an entry in the PLT. Set it up. */
3941 BFD_ASSERT (h->dynindx != -1);
3943 splt = htab->elf.splt;
3944 srela = htab->elf.srelplt;
3945 sgotplt = htab->elf.sgotplt;
3947 if (splt == NULL || srela == NULL)
3950 /* Fill in the entry in the procedure linkage table. */
3951 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
3952 h->plt.offset, &r_offset);
3954 /* Fill in the entry in the global offset table, which initially points
3955 to the beginning of the plt. */
3956 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3957 splt->output_section->vma + splt->output_offset,
3958 sgotplt->contents + r_offset);
3960 /* Fill in the entry in the .rela.plt section. */
3961 rela.r_offset = (sgotplt->output_section->vma
3962 + sgotplt->output_offset
3965 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
3967 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
3968 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3970 if (!h->def_regular)
3972 /* Mark the symbol as undefined, rather than as defined in
3973 the .plt section. Leave the value alone. */
3974 sym->st_shndx = SHN_UNDEF;
3975 /* If the symbol is weak, we do need to clear the value.
3976 Otherwise, the PLT entry would provide a definition for
3977 the symbol even if the symbol wasn't defined anywhere,
3978 and so the symbol would never be NULL. */
3979 if (!h->ref_regular_nonweak)
3984 if (h->got.offset != (bfd_vma) -1
3985 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3986 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3990 Elf_Internal_Rela rela;
3992 /* This symbol has an entry in the GOT. Set it up. */
3994 sgot = htab->elf.sgot;
3995 srela = htab->elf.srelgot;
3996 BFD_ASSERT (sgot != NULL && srela != NULL);
3998 rela.r_offset = (sgot->output_section->vma
3999 + sgot->output_offset
4000 + (h->got.offset &~ (bfd_vma) 1));
4002 /* If this is a -Bsymbolic link, and the symbol is defined
4003 locally, we just want to emit a RELATIVE reloc. Likewise if
4004 the symbol was forced to be local because of a version file.
4005 The entry in the global offset table will already have been
4006 initialized in the relocate_section function. */
4007 if (bfd_link_pic (info)
4008 && (info->symbolic || h->dynindx == -1)
4011 asection *sec = h->root.u.def.section;
4012 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4013 rela.r_addend = (h->root.u.def.value
4014 + sec->output_section->vma
4015 + sec->output_offset);
4019 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4023 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4024 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4025 tilegx_elf_append_rela (output_bfd, srela, &rela);
4031 Elf_Internal_Rela rela;
4033 /* This symbols needs a copy reloc. Set it up. */
4034 BFD_ASSERT (h->dynindx != -1);
4036 if (h->root.u.def.section == htab->elf.sdynrelro)
4037 s = htab->elf.sreldynrelro;
4039 s = htab->elf.srelbss;
4040 BFD_ASSERT (s != NULL);
4042 rela.r_offset = (h->root.u.def.value
4043 + h->root.u.def.section->output_section->vma
4044 + h->root.u.def.section->output_offset);
4045 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4047 tilegx_elf_append_rela (output_bfd, s, &rela);
4050 /* Mark some specially defined symbols as absolute. */
4051 if (h == htab->elf.hdynamic
4052 || (h == htab->elf.hgot || h == htab->elf.hplt))
4053 sym->st_shndx = SHN_ABS;
4058 /* Finish up the dynamic sections. */
4061 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4062 bfd *dynobj, asection *sdyn,
4063 asection *splt ATTRIBUTE_UNUSED)
4065 struct tilegx_elf_link_hash_table *htab;
4066 const struct elf_backend_data *bed;
4067 bfd_byte *dyncon, *dynconend;
4070 htab = tilegx_elf_hash_table (info);
4071 BFD_ASSERT (htab != NULL);
4072 bed = get_elf_backend_data (output_bfd);
4073 dynsize = bed->s->sizeof_dyn;
4074 dynconend = sdyn->contents + sdyn->size;
4076 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4078 Elf_Internal_Dyn dyn;
4081 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4086 s = htab->elf.sgotplt;
4087 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4090 s = htab->elf.srelplt;
4091 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4094 s = htab->elf.srelplt;
4095 dyn.d_un.d_val = s->size;
4101 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4107 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4108 struct bfd_link_info *info)
4112 struct tilegx_elf_link_hash_table *htab;
4115 htab = tilegx_elf_hash_table (info);
4116 BFD_ASSERT (htab != NULL);
4117 dynobj = htab->elf.dynobj;
4119 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4121 if (elf_hash_table (info)->dynamic_sections_created)
4126 splt = htab->elf.splt;
4127 BFD_ASSERT (splt != NULL && sdyn != NULL);
4129 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4134 /* Fill in the head and tail entries in the procedure linkage table. */
4137 memcpy (splt->contents,
4138 ABI_64_P (output_bfd) ?
4139 tilegx64_plt0_entry : tilegx32_plt0_entry,
4142 memcpy (splt->contents + splt->size
4143 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
4144 ABI_64_P (output_bfd) ?
4145 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4147 /* Add padding so that the plt section is a multiple of its
4149 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4150 memset (splt->contents + splt->size - pad_size, 0, pad_size);
4152 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4157 if (htab->elf.sgotplt)
4159 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4162 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4166 if (htab->elf.sgotplt->size > 0)
4168 /* Write the first two entries in .got.plt, needed for the dynamic
4170 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4171 htab->elf.sgotplt->contents);
4172 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4173 htab->elf.sgotplt->contents
4174 + GOT_ENTRY_SIZE (htab));
4176 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4177 GOT_ENTRY_SIZE (htab);
4183 if (htab->elf.sgot->size > 0)
4185 /* Set the first entry in the global offset table to the address of
4186 the dynamic section. */
4187 bfd_vma val = (sdyn ?
4188 sdyn->output_section->vma + sdyn->output_offset :
4190 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4191 htab->elf.sgot->contents);
4193 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4194 GOT_ENTRY_SIZE (htab);
4203 /* Return address for Ith PLT stub in section PLT, for relocation REL
4204 or (bfd_vma) -1 if it should not be included. */
4207 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4208 const arelent *rel ATTRIBUTE_UNUSED)
4210 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4213 enum elf_reloc_type_class
4214 tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4215 const asection *rel_sec ATTRIBUTE_UNUSED,
4216 const Elf_Internal_Rela *rela)
4218 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4220 case R_TILEGX_RELATIVE:
4221 return reloc_class_relative;
4222 case R_TILEGX_JMP_SLOT:
4223 return reloc_class_plt;
4225 return reloc_class_copy;
4227 return reloc_class_normal;
4232 tilegx_additional_program_headers (bfd *abfd,
4233 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4235 /* Each .intrpt section specified by the user adds another PT_LOAD
4236 header since the sections are discontiguous. */
4237 static const char intrpt_sections[4][9] =
4239 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4244 for (i = 0; i < 4; i++)
4246 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4247 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4251 /* Add four "padding" headers in to leave room in case a custom linker
4252 script does something fancy. Otherwise ld complains that it ran
4253 out of program headers and refuses to link. */
4261 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4263 bfd *obfd = info->output_bfd;
4264 const char *targ1 = bfd_get_target (ibfd);
4265 const char *targ2 = bfd_get_target (obfd);
4267 if (strcmp (targ1, targ2) != 0)
4270 /* xgettext:c-format */
4271 (_("%B: Cannot link together %s and %s objects."),
4272 ibfd, targ1, targ2);
4273 bfd_set_error (bfd_error_bad_value);