1 /* TILE-Gx-specific support for ELF.
2 Copyright (C) 2011-2020 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 /* TILEGX ELF linker hash entry. */
784 struct tilegx_elf_link_hash_entry
786 struct elf_link_hash_entry elf
;
788 #define GOT_UNKNOWN 0
792 unsigned char tls_type
;
795 #define tilegx_elf_hash_entry(ent) \
796 ((struct tilegx_elf_link_hash_entry *)(ent))
798 struct _bfd_tilegx_elf_obj_tdata
800 struct elf_obj_tdata root
;
802 /* tls_type for each local got entry. */
803 char *local_got_tls_type
;
806 #define _bfd_tilegx_elf_tdata(abfd) \
807 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
809 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
810 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
812 #define is_tilegx_elf(bfd) \
813 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
814 && elf_tdata (bfd) != NULL \
815 && elf_object_id (bfd) == TILEGX_ELF_DATA)
817 #include "elf/common.h"
818 #include "elf/internal.h"
820 struct tilegx_elf_link_hash_table
822 struct elf_link_hash_table elf
;
825 int word_align_power
;
830 bfd_vma (*r_info
) (Elf_Internal_Rela
*, bfd_vma
, bfd_vma
);
831 bfd_vma (*r_symndx
) (bfd_vma
);
832 void (*put_word
) (bfd
*, bfd_vma
, void *);
833 const char *dynamic_interpreter
;
835 /* Whether LE transition has been disabled for some of the
837 bfd_boolean disable_le_transition
;
839 /* Small local sym to section mapping cache. */
840 struct sym_cache sym_cache
;
844 /* Get the Tile ELF linker hash table from a link_info structure. */
845 #define tilegx_elf_hash_table(p) \
846 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
847 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
851 tilegx_elf_r_info_64 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
855 return ELF64_R_INFO (rel_index
, type
);
859 tilegx_elf_r_symndx_64 (bfd_vma r_info
)
861 return ELF64_R_SYM (r_info
);
865 tilegx_put_word_64 (bfd
*abfd
, bfd_vma val
, void *ptr
)
867 bfd_put_64 (abfd
, val
, ptr
);
872 tilegx_elf_r_info_32 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
876 return ELF32_R_INFO (rel_index
, type
);
880 tilegx_elf_r_symndx_32 (bfd_vma r_info
)
882 return ELF32_R_SYM (r_info
);
886 tilegx_put_word_32 (bfd
*abfd
, bfd_vma val
, void *ptr
)
888 bfd_put_32 (abfd
, val
, ptr
);
892 tilegx_reloc_type_lookup (bfd
* abfd
,
893 bfd_reloc_code_real_type code
)
897 for (i
= ARRAY_SIZE (tilegx_reloc_map
); i
--;)
899 const reloc_map
* entry
;
901 entry
= tilegx_reloc_map
+ i
;
903 if (entry
->bfd_reloc_val
== code
)
904 return entry
->table
+ (entry
->tilegx_reloc_val
905 - entry
->table
[0].type
);
908 /* xgettext:c-format */
909 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
911 bfd_set_error (bfd_error_bad_value
);
916 tilegx_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
922 i
< (sizeof (tilegx_elf_howto_table
)
923 / sizeof (tilegx_elf_howto_table
[0]));
925 if (tilegx_elf_howto_table
[i
].name
!= NULL
926 && strcasecmp (tilegx_elf_howto_table
[i
].name
, r_name
) == 0)
927 return &tilegx_elf_howto_table
[i
];
933 tilegx_info_to_howto_rela (bfd
*abfd ATTRIBUTE_UNUSED
,
935 Elf_Internal_Rela
*dst
)
937 unsigned int r_type
= TILEGX_ELF_R_TYPE (dst
->r_info
);
939 if (r_type
<= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD
)
940 cache_ptr
->howto
= &tilegx_elf_howto_table
[r_type
];
941 else if (r_type
- R_TILEGX_GNU_VTINHERIT
942 <= ((unsigned int) R_TILEGX_GNU_VTENTRY
943 - (unsigned int) R_TILEGX_GNU_VTINHERIT
))
945 = &tilegx_elf_howto_table2
[r_type
- R_TILEGX_GNU_VTINHERIT
];
948 /* xgettext:c-format */
949 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
951 bfd_set_error (bfd_error_bad_value
);
957 typedef tilegx_bundle_bits (*tilegx_create_func
)(int);
959 static const tilegx_create_func reloc_to_create_func
[] =
961 /* The first twenty relocation types don't correspond to operands */
983 /* The remaining relocations are used for immediate operands */
1071 tilegx_elf_append_rela (bfd
*abfd
, asection
*s
, Elf_Internal_Rela
*rel
)
1073 const struct elf_backend_data
*bed
;
1076 bed
= get_elf_backend_data (abfd
);
1077 loc
= s
->contents
+ (s
->reloc_count
++ * bed
->s
->sizeof_rela
);
1078 bed
->s
->swap_reloca_out (abfd
, rel
, loc
);
1083 /* The procedure linkage table starts with the following header:
1089 info 10 ## SP not offset, return PC in LR
1092 Subsequent entries are the following, jumping to the header at the end:
1095 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1100 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1101 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1105 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1110 info 10 ## SP not offset, return PC in LR
1113 shl16insli r29, zero, MY_PLT_INDEX
1117 This code sequence lets the code at at the start of the PLT determine
1118 which PLT entry was executed by examining 'r29'.
1120 Note that MY_PLT_INDEX skips over the header entries, so the first
1121 actual jump table entry has index zero.
1123 If the offset fits in 16 bits,
1128 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1129 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1132 shl16insli r29, zero, MY_PLT_INDEX
1139 info 10 ## SP not offset, return PC in LR
1141 For the purpose of backtracing, the procedure linkage table ends with the
1142 following tail entry:
1144 info 10 ## SP not offset, return PC in LR
1146 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1147 the GOT being multiples of 4 instead of 8.
1151 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1152 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1153 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1155 #define PLT_HEADER_SIZE \
1156 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1157 #define PLT_ENTRY_SIZE \
1158 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1159 #define PLT_TAIL_SIZE \
1160 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1162 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1164 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1166 static const bfd_byte
1167 tilegx64_plt0_entry
[PLT_HEADER_SIZE
] =
1169 0x00, 0x30, 0x48, 0x51,
1170 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1171 0x00, 0x30, 0xbc, 0x35,
1172 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1173 0xff, 0xaf, 0x30, 0x40,
1174 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1177 static const bfd_byte
1178 tilegx64_long_plt_entry
[PLT_ENTRY_SIZE
] =
1180 0xdc, 0x0f, 0x00, 0x10,
1181 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1182 0xdb, 0x0f, 0x00, 0x10,
1183 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1184 0x9c, 0xc6, 0x0d, 0xd0,
1185 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1186 0x9b, 0xb6, 0xc5, 0xad,
1187 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1188 0xdd, 0x0f, 0x00, 0x70,
1189 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1192 static const bfd_byte
1193 tilegx64_short_plt_entry
[PLT_ENTRY_SIZE
] =
1195 0x00, 0x30, 0x48, 0x51,
1196 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1197 0x9c, 0x06, 0x00, 0x90,
1198 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1199 0xdd, 0x0f, 0x00, 0x70,
1200 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1201 0x9b, 0xb6, 0x0d, 0x50,
1202 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1203 0x00, 0x30, 0x48, 0xd1,
1204 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1207 /* Reuse an existing info 10 bundle. */
1208 static const bfd_byte
*const tilegx64_plt_tail_entry
=
1209 &tilegx64_short_plt_entry
[4 * TILEGX_BUNDLE_SIZE_IN_BYTES
];
1211 static const bfd_byte
1212 tilegx32_plt0_entry
[PLT_HEADER_SIZE
] =
1214 0x00, 0x30, 0x48, 0x51,
1215 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1216 0x00, 0x30, 0xbc, 0x35,
1217 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1218 0xff, 0xaf, 0x30, 0x40,
1219 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1222 static const bfd_byte
1223 tilegx32_long_plt_entry
[PLT_ENTRY_SIZE
] =
1225 0xdc, 0x0f, 0x00, 0x10,
1226 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1227 0xdb, 0x0f, 0x00, 0x10,
1228 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1229 0x9c, 0xc6, 0x0d, 0xd0,
1230 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1231 0x9b, 0xb6, 0xc5, 0xad,
1232 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1233 0xdd, 0x0f, 0x00, 0x70,
1234 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1237 static const bfd_byte
1238 tilegx32_short_plt_entry
[PLT_ENTRY_SIZE
] =
1240 0x00, 0x30, 0x48, 0x51,
1241 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1242 0x9c, 0x06, 0x00, 0x90,
1243 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1244 0xdd, 0x0f, 0x00, 0x70,
1245 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1246 0x9b, 0xb6, 0x0d, 0x50,
1247 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1248 0x00, 0x30, 0x48, 0xd1,
1249 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1252 /* Reuse an existing info 10 bundle. */
1253 static const bfd_byte
*const tilegx32_plt_tail_entry
=
1254 &tilegx64_short_plt_entry
[4 * TILEGX_BUNDLE_SIZE_IN_BYTES
];
1257 tilegx_plt_entry_build (bfd
*output_bfd
,
1258 struct tilegx_elf_link_hash_table
*htab
,
1259 asection
*splt
, asection
*sgotplt
,
1260 bfd_vma offset
, bfd_vma
*r_offset
)
1262 int plt_index
= (offset
- PLT_HEADER_SIZE
) / PLT_ENTRY_SIZE
;
1263 int got_offset
= (plt_index
* GOT_ENTRY_SIZE (htab
)
1264 + GOTPLT_HEADER_SIZE (htab
));
1265 tilegx_bundle_bits
*pc
;
1267 /* Compute the distance from the got entry to the lnk. */
1268 bfd_signed_vma dist_got_entry
= sgotplt
->output_section
->vma
1269 + sgotplt
->output_offset
1271 - splt
->output_section
->vma
1272 - splt
->output_offset
1274 - TILEGX_BUNDLE_SIZE_IN_BYTES
;
1276 /* Compute the distance to GOTPLT[0]. */
1277 bfd_signed_vma dist_got0
= dist_got_entry
- got_offset
;
1279 /* Check whether we can use the short plt entry with 16-bit offset. */
1280 bfd_boolean short_plt_entry
=
1281 (dist_got_entry
<= 0x7fff && dist_got0
>= -0x8000);
1283 const tilegx_bundle_bits
*plt_entry
= (tilegx_bundle_bits
*)
1284 (ABI_64_P (output_bfd
) ?
1285 (short_plt_entry
? tilegx64_short_plt_entry
: tilegx64_long_plt_entry
) :
1286 (short_plt_entry
? tilegx32_short_plt_entry
: tilegx32_long_plt_entry
));
1288 /* Copy the plt entry template. */
1289 memcpy (splt
->contents
+ offset
, plt_entry
, PLT_ENTRY_SIZE
);
1291 /* Write the immediate offsets. */
1292 pc
= (tilegx_bundle_bits
*)(splt
->contents
+ offset
);
1294 if (short_plt_entry
)
1299 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1300 *pc
++ |= create_Imm16_X0 (dist_got_entry
)
1301 | create_Imm16_X1 (dist_got0
);
1303 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1304 *pc
++ |= create_Imm16_X0 (plt_index
);
1308 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1309 *pc
++ |= create_Imm16_X0 (dist_got_entry
>> 16);
1311 /* { moveli r27, &GOTPLT[0] ;
1312 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1313 *pc
++ |= create_Imm16_X0 (dist_got0
>> 16)
1314 | create_Imm16_X1 (dist_got_entry
);
1316 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1317 *pc
++ |= create_Imm16_X1 (dist_got0
);
1319 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1322 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1323 *pc
++ |= create_Imm16_X0 (plt_index
);
1326 /* Set the relocation offset. */
1327 *r_offset
= got_offset
;
1332 /* Create an entry in an TILEGX ELF linker hash table. */
1334 static struct bfd_hash_entry
*
1335 link_hash_newfunc (struct bfd_hash_entry
*entry
,
1336 struct bfd_hash_table
*table
, const char *string
)
1338 /* Allocate the structure if it has not already been allocated by a
1343 bfd_hash_allocate (table
,
1344 sizeof (struct tilegx_elf_link_hash_entry
));
1349 /* Call the allocation method of the superclass. */
1350 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
1353 struct tilegx_elf_link_hash_entry
*eh
;
1355 eh
= (struct tilegx_elf_link_hash_entry
*) entry
;
1356 eh
->tls_type
= GOT_UNKNOWN
;
1362 /* Create a TILEGX ELF linker hash table. */
1364 struct bfd_link_hash_table
*
1365 tilegx_elf_link_hash_table_create (bfd
*abfd
)
1367 struct tilegx_elf_link_hash_table
*ret
;
1368 size_t amt
= sizeof (struct tilegx_elf_link_hash_table
);
1370 ret
= (struct tilegx_elf_link_hash_table
*) bfd_zmalloc (amt
);
1375 if (ABI_64_P (abfd
))
1377 ret
->bytes_per_word
= 8;
1378 ret
->word_align_power
= 3;
1379 ret
->bytes_per_rela
= sizeof (Elf64_External_Rela
);
1380 ret
->dtpoff_reloc
= R_TILEGX_TLS_DTPOFF64
;
1381 ret
->dtpmod_reloc
= R_TILEGX_TLS_DTPMOD64
;
1382 ret
->tpoff_reloc
= R_TILEGX_TLS_TPOFF64
;
1383 ret
->r_info
= tilegx_elf_r_info_64
;
1384 ret
->r_symndx
= tilegx_elf_r_symndx_64
;
1385 ret
->dynamic_interpreter
= ELF64_DYNAMIC_INTERPRETER
;
1386 ret
->put_word
= tilegx_put_word_64
;
1391 ret
->bytes_per_word
= 4;
1392 ret
->word_align_power
= 2;
1393 ret
->bytes_per_rela
= sizeof (Elf32_External_Rela
);
1394 ret
->dtpoff_reloc
= R_TILEGX_TLS_DTPOFF32
;
1395 ret
->dtpmod_reloc
= R_TILEGX_TLS_DTPMOD32
;
1396 ret
->tpoff_reloc
= R_TILEGX_TLS_TPOFF32
;
1397 ret
->r_info
= tilegx_elf_r_info_32
;
1398 ret
->r_symndx
= tilegx_elf_r_symndx_32
;
1399 ret
->dynamic_interpreter
= ELF32_DYNAMIC_INTERPRETER
;
1400 ret
->put_word
= tilegx_put_word_32
;
1403 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
, link_hash_newfunc
,
1404 sizeof (struct tilegx_elf_link_hash_entry
),
1411 return &ret
->elf
.root
;
1414 /* Create the .got section. */
1417 tilegx_elf_create_got_section (bfd
*abfd
, struct bfd_link_info
*info
)
1420 asection
*s
, *s_got
;
1421 struct elf_link_hash_entry
*h
;
1422 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1423 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
1425 /* This function may be called more than once. */
1426 if (htab
->sgot
!= NULL
)
1429 flags
= bed
->dynamic_sec_flags
;
1431 s
= bfd_make_section_anyway_with_flags (abfd
,
1432 (bed
->rela_plts_and_copies_p
1433 ? ".rela.got" : ".rel.got"),
1434 (bed
->dynamic_sec_flags
1437 || !bfd_set_section_alignment (s
, bed
->s
->log_file_align
))
1441 s
= s_got
= bfd_make_section_anyway_with_flags (abfd
, ".got", flags
);
1443 || !bfd_set_section_alignment (s
, bed
->s
->log_file_align
))
1447 /* The first bit of the global offset table is the header. */
1448 s
->size
+= bed
->got_header_size
;
1450 if (bed
->want_got_plt
)
1452 s
= bfd_make_section_anyway_with_flags (abfd
, ".got.plt", flags
);
1454 || !bfd_set_section_alignment (s
, bed
->s
->log_file_align
))
1458 /* Reserve room for the header. */
1459 s
->size
+= GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info
));
1462 if (bed
->want_got_sym
)
1464 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1465 section. We don't do this in the linker script because we don't want
1466 to define the symbol if we are not creating a global offset
1468 h
= _bfd_elf_define_linkage_sym (abfd
, info
, s_got
,
1469 "_GLOBAL_OFFSET_TABLE_");
1470 elf_hash_table (info
)->hgot
= h
;
1478 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1479 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1483 tilegx_elf_create_dynamic_sections (bfd
*dynobj
,
1484 struct bfd_link_info
*info
)
1486 if (!tilegx_elf_create_got_section (dynobj
, info
))
1489 return _bfd_elf_create_dynamic_sections (dynobj
, info
);
1492 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1495 tilegx_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
1496 struct elf_link_hash_entry
*dir
,
1497 struct elf_link_hash_entry
*ind
)
1499 struct tilegx_elf_link_hash_entry
*edir
, *eind
;
1501 edir
= (struct tilegx_elf_link_hash_entry
*) dir
;
1502 eind
= (struct tilegx_elf_link_hash_entry
*) ind
;
1504 if (ind
->dyn_relocs
!= NULL
)
1506 if (dir
->dyn_relocs
!= NULL
)
1508 struct elf_dyn_relocs
**pp
;
1509 struct elf_dyn_relocs
*p
;
1511 /* Add reloc counts against the indirect sym to the direct sym
1512 list. Merge any entries against the same section. */
1513 for (pp
= &ind
->dyn_relocs
; (p
= *pp
) != NULL
; )
1515 struct elf_dyn_relocs
*q
;
1517 for (q
= dir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
1518 if (q
->sec
== p
->sec
)
1520 q
->pc_count
+= p
->pc_count
;
1521 q
->count
+= p
->count
;
1528 *pp
= dir
->dyn_relocs
;
1531 dir
->dyn_relocs
= ind
->dyn_relocs
;
1532 ind
->dyn_relocs
= NULL
;
1535 if (ind
->root
.type
== bfd_link_hash_indirect
1536 && dir
->got
.refcount
<= 0)
1538 edir
->tls_type
= eind
->tls_type
;
1539 eind
->tls_type
= GOT_UNKNOWN
;
1541 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
1545 tilegx_tls_translate_to_le (int r_type
)
1549 case R_TILEGX_IMM16_X0_HW0_TLS_GD
:
1550 case R_TILEGX_IMM16_X0_HW0_TLS_IE
:
1551 return R_TILEGX_IMM16_X0_HW0_TLS_LE
;
1553 case R_TILEGX_IMM16_X1_HW0_TLS_GD
:
1554 case R_TILEGX_IMM16_X1_HW0_TLS_IE
:
1555 return R_TILEGX_IMM16_X1_HW0_TLS_LE
;
1557 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
:
1558 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
:
1559 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
;
1561 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
:
1562 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
:
1563 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
;
1565 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
:
1566 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
:
1567 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
;
1569 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
:
1570 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
:
1571 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
;
1577 tilegx_tls_translate_to_ie (int r_type
)
1581 case R_TILEGX_IMM16_X0_HW0_TLS_GD
:
1582 case R_TILEGX_IMM16_X0_HW0_TLS_IE
:
1583 return R_TILEGX_IMM16_X0_HW0_TLS_IE
;
1585 case R_TILEGX_IMM16_X1_HW0_TLS_GD
:
1586 case R_TILEGX_IMM16_X1_HW0_TLS_IE
:
1587 return R_TILEGX_IMM16_X1_HW0_TLS_IE
;
1589 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
:
1590 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
:
1591 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
;
1593 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
:
1594 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
:
1595 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
;
1597 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
:
1598 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
:
1599 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
;
1601 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
:
1602 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
:
1603 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
;
1609 tilegx_elf_tls_transition (struct bfd_link_info
*info
, int r_type
,
1610 int is_local
, bfd_boolean disable_le_transition
)
1612 if (!bfd_link_executable (info
))
1615 if (is_local
&& !disable_le_transition
)
1616 return tilegx_tls_translate_to_le (r_type
);
1618 return tilegx_tls_translate_to_ie (r_type
);
1621 /* Look through the relocs for a section during the first phase, and
1622 allocate space in the global offset table or procedure linkage
1626 tilegx_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
1627 asection
*sec
, const Elf_Internal_Rela
*relocs
)
1629 struct tilegx_elf_link_hash_table
*htab
;
1630 Elf_Internal_Shdr
*symtab_hdr
;
1631 struct elf_link_hash_entry
**sym_hashes
;
1632 const Elf_Internal_Rela
*rel
;
1633 const Elf_Internal_Rela
*rel_end
;
1636 bfd_boolean has_tls_gd_or_ie
= FALSE
, has_tls_add
= FALSE
;
1638 if (bfd_link_relocatable (info
))
1641 htab
= tilegx_elf_hash_table (info
);
1642 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1643 sym_hashes
= elf_sym_hashes (abfd
);
1647 num_relocs
= sec
->reloc_count
;
1649 BFD_ASSERT (is_tilegx_elf (abfd
) || num_relocs
== 0);
1651 if (htab
->elf
.dynobj
== NULL
)
1652 htab
->elf
.dynobj
= abfd
;
1654 rel_end
= relocs
+ num_relocs
;
1656 /* Check whether to do optimization to transform TLS GD/IE
1657 referehces to TLS LE. We disable it if we're linking with old
1658 TLS code sequences that do not support such optimization. Old
1659 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1660 no tls_add relocations. */
1661 for (rel
= relocs
; rel
< rel_end
&& !has_tls_add
; rel
++)
1663 int r_type
= TILEGX_ELF_R_TYPE (rel
->r_info
);
1666 case R_TILEGX_TLS_GD_CALL
:
1667 case R_TILEGX_TLS_IE_LOAD
:
1668 has_tls_gd_or_ie
= TRUE
;
1670 case R_TILEGX_IMM8_X0_TLS_ADD
:
1671 case R_TILEGX_IMM8_Y0_TLS_ADD
:
1672 case R_TILEGX_IMM8_X1_TLS_ADD
:
1673 case R_TILEGX_IMM8_Y1_TLS_ADD
:
1679 sec
->sec_flg0
= (has_tls_gd_or_ie
&& !has_tls_add
);
1680 htab
->disable_le_transition
|= sec
->sec_flg0
;
1682 for (rel
= relocs
; rel
< rel_end
; rel
++)
1684 unsigned int r_type
;
1685 unsigned int r_symndx
;
1686 struct elf_link_hash_entry
*h
;
1689 r_symndx
= TILEGX_ELF_R_SYMNDX (htab
, rel
->r_info
);
1690 r_type
= TILEGX_ELF_R_TYPE (rel
->r_info
);
1692 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
1694 /* xgettext:c-format */
1695 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1700 if (r_symndx
< symtab_hdr
->sh_info
)
1704 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1705 while (h
->root
.type
== bfd_link_hash_indirect
1706 || h
->root
.type
== bfd_link_hash_warning
)
1707 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1710 r_type
= tilegx_elf_tls_transition (info
, r_type
, h
== NULL
,
1714 case R_TILEGX_IMM16_X0_HW0_TLS_LE
:
1715 case R_TILEGX_IMM16_X1_HW0_TLS_LE
:
1716 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
:
1717 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
:
1718 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
:
1719 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
:
1720 if (!bfd_link_executable (info
))
1721 goto r_tilegx_plt32
;
1724 case R_TILEGX_IMM16_X0_HW0_TLS_GD
:
1725 case R_TILEGX_IMM16_X1_HW0_TLS_GD
:
1726 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
:
1727 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
:
1728 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
:
1729 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
:
1730 BFD_ASSERT (bfd_link_pic (info
));
1731 tls_type
= GOT_TLS_GD
;
1732 goto have_got_reference
;
1734 case R_TILEGX_IMM16_X0_HW0_TLS_IE
:
1735 case R_TILEGX_IMM16_X1_HW0_TLS_IE
:
1736 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
:
1737 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
:
1738 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
:
1739 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
:
1740 tls_type
= GOT_TLS_IE
;
1741 if (!bfd_link_executable (info
))
1742 info
->flags
|= DF_STATIC_TLS
;
1743 goto have_got_reference
;
1745 case R_TILEGX_IMM16_X0_HW0_GOT
:
1746 case R_TILEGX_IMM16_X1_HW0_GOT
:
1747 case R_TILEGX_IMM16_X0_HW0_LAST_GOT
:
1748 case R_TILEGX_IMM16_X1_HW0_LAST_GOT
:
1749 case R_TILEGX_IMM16_X0_HW1_LAST_GOT
:
1750 case R_TILEGX_IMM16_X1_HW1_LAST_GOT
:
1751 tls_type
= GOT_NORMAL
;
1755 /* This symbol requires a global offset table entry. */
1761 h
->got
.refcount
+= 1;
1762 old_tls_type
= tilegx_elf_hash_entry(h
)->tls_type
;
1766 bfd_signed_vma
*local_got_refcounts
;
1768 /* This is a global offset table entry for a local symbol. */
1769 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1770 if (local_got_refcounts
== NULL
)
1774 size
= symtab_hdr
->sh_info
;
1775 size
*= (sizeof (bfd_signed_vma
) + sizeof(char));
1776 local_got_refcounts
= ((bfd_signed_vma
*)
1777 bfd_zalloc (abfd
, size
));
1778 if (local_got_refcounts
== NULL
)
1780 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
1781 _bfd_tilegx_elf_local_got_tls_type (abfd
)
1782 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
1784 local_got_refcounts
[r_symndx
] += 1;
1785 old_tls_type
= _bfd_tilegx_elf_local_got_tls_type (abfd
) [r_symndx
];
1788 /* If a TLS symbol is accessed using IE at least once,
1789 there is no point to use dynamic model for it. */
1790 if (old_tls_type
!= tls_type
&& old_tls_type
!= GOT_UNKNOWN
1791 && (old_tls_type
!= GOT_TLS_GD
1792 || tls_type
!= GOT_TLS_IE
))
1794 if (old_tls_type
== GOT_TLS_IE
&& tls_type
== GOT_TLS_GD
)
1795 tls_type
= old_tls_type
;
1799 /* xgettext:c-format */
1800 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1801 abfd
, h
? h
->root
.root
.string
: "<local>");
1806 if (old_tls_type
!= tls_type
)
1809 tilegx_elf_hash_entry (h
)->tls_type
= tls_type
;
1811 _bfd_tilegx_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1815 if (htab
->elf
.sgot
== NULL
)
1817 if (!tilegx_elf_create_got_section (htab
->elf
.dynobj
, info
))
1822 case R_TILEGX_TLS_GD_CALL
:
1823 if (!bfd_link_executable (info
))
1825 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1826 against __tls_get_addr. */
1827 struct bfd_link_hash_entry
*bh
= NULL
;
1828 if (! _bfd_generic_link_add_one_symbol (info
, abfd
,
1829 "__tls_get_addr", 0,
1830 bfd_und_section_ptr
, 0,
1834 h
= (struct elf_link_hash_entry
*) bh
;
1840 case R_TILEGX_JUMPOFF_X1_PLT
:
1841 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL
:
1842 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL
:
1843 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL
:
1844 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL
:
1845 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL
:
1846 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL
:
1847 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL
:
1848 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL
:
1849 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL
:
1850 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL
:
1851 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL
:
1852 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL
:
1853 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL
:
1854 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL
:
1855 /* This symbol requires a procedure linkage table entry. We
1856 actually build the entry in adjust_dynamic_symbol,
1857 because this might be a case of linking PIC code without
1858 linking in any dynamic objects, in which case we don't
1859 need to generate a procedure linkage table after all. */
1864 h
->plt
.refcount
+= 1;
1868 case R_TILEGX_64_PCREL
:
1869 case R_TILEGX_32_PCREL
:
1870 case R_TILEGX_16_PCREL
:
1871 case R_TILEGX_8_PCREL
:
1872 case R_TILEGX_IMM16_X0_HW0_PCREL
:
1873 case R_TILEGX_IMM16_X1_HW0_PCREL
:
1874 case R_TILEGX_IMM16_X0_HW1_PCREL
:
1875 case R_TILEGX_IMM16_X1_HW1_PCREL
:
1876 case R_TILEGX_IMM16_X0_HW2_PCREL
:
1877 case R_TILEGX_IMM16_X1_HW2_PCREL
:
1878 case R_TILEGX_IMM16_X0_HW3_PCREL
:
1879 case R_TILEGX_IMM16_X1_HW3_PCREL
:
1880 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL
:
1881 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL
:
1882 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL
:
1883 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL
:
1884 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL
:
1885 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL
:
1890 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1902 case R_TILEGX_HW0_LAST
:
1903 case R_TILEGX_HW1_LAST
:
1904 case R_TILEGX_HW2_LAST
:
1906 case R_TILEGX_GLOB_DAT
:
1907 case R_TILEGX_JMP_SLOT
:
1908 case R_TILEGX_RELATIVE
:
1909 case R_TILEGX_BROFF_X1
:
1910 case R_TILEGX_JUMPOFF_X1
:
1911 case R_TILEGX_IMM8_X0
:
1912 case R_TILEGX_IMM8_Y0
:
1913 case R_TILEGX_IMM8_X1
:
1914 case R_TILEGX_IMM8_Y1
:
1915 case R_TILEGX_DEST_IMM8_X1
:
1916 case R_TILEGX_MT_IMM14_X1
:
1917 case R_TILEGX_MF_IMM14_X1
:
1918 case R_TILEGX_MMSTART_X0
:
1919 case R_TILEGX_MMEND_X0
:
1920 case R_TILEGX_SHAMT_X0
:
1921 case R_TILEGX_SHAMT_X1
:
1922 case R_TILEGX_SHAMT_Y0
:
1923 case R_TILEGX_SHAMT_Y1
:
1924 case R_TILEGX_IMM16_X0_HW0
:
1925 case R_TILEGX_IMM16_X1_HW0
:
1926 case R_TILEGX_IMM16_X0_HW1
:
1927 case R_TILEGX_IMM16_X1_HW1
:
1928 case R_TILEGX_IMM16_X0_HW2
:
1929 case R_TILEGX_IMM16_X1_HW2
:
1930 case R_TILEGX_IMM16_X0_HW3
:
1931 case R_TILEGX_IMM16_X1_HW3
:
1932 case R_TILEGX_IMM16_X0_HW0_LAST
:
1933 case R_TILEGX_IMM16_X1_HW0_LAST
:
1934 case R_TILEGX_IMM16_X0_HW1_LAST
:
1935 case R_TILEGX_IMM16_X1_HW1_LAST
:
1936 case R_TILEGX_IMM16_X0_HW2_LAST
:
1937 case R_TILEGX_IMM16_X1_HW2_LAST
:
1942 if (h
!= NULL
&& !bfd_link_pic (info
))
1944 /* We may need a .plt entry if the function this reloc
1945 refers to is in a shared lib. */
1946 h
->plt
.refcount
+= 1;
1949 /* If we are creating a shared library, and this is a reloc
1950 against a global symbol, or a non PC relative reloc
1951 against a local symbol, then we need to copy the reloc
1952 into the shared library. However, if we are linking with
1953 -Bsymbolic, we do not need to copy a reloc against a
1954 global symbol which is defined in an object we are
1955 including in the link (i.e., DEF_REGULAR is set). At
1956 this point we have not seen all the input files, so it is
1957 possible that DEF_REGULAR is not set now but will be set
1958 later (it is never cleared). In case of a weak definition,
1959 DEF_REGULAR may be cleared later by a strong definition in
1960 a shared library. We account for that possibility below by
1961 storing information in the relocs_copied field of the hash
1962 table entry. A similar situation occurs when creating
1963 shared libraries and symbol visibility changes render the
1966 If on the other hand, we are creating an executable, we
1967 may need to keep relocations for symbols satisfied by a
1968 dynamic library if we manage to avoid copy relocs for the
1970 if ((bfd_link_pic (info
)
1971 && (sec
->flags
& SEC_ALLOC
) != 0
1972 && (! tilegx_elf_howto_table
[r_type
].pc_relative
1974 && (! info
->symbolic
1975 || h
->root
.type
== bfd_link_hash_defweak
1976 || !h
->def_regular
))))
1977 || (!bfd_link_pic (info
)
1978 && (sec
->flags
& SEC_ALLOC
) != 0
1980 && (h
->root
.type
== bfd_link_hash_defweak
1981 || !h
->def_regular
)))
1983 struct elf_dyn_relocs
*p
;
1984 struct elf_dyn_relocs
**head
;
1986 /* When creating a shared object, we must copy these
1987 relocs into the output file. We create a reloc
1988 section in dynobj and make room for the reloc. */
1991 sreloc
= _bfd_elf_make_dynamic_reloc_section
1992 (sec
, htab
->elf
.dynobj
, htab
->word_align_power
, abfd
,
1999 /* If this is a global symbol, we count the number of
2000 relocations we need for this symbol. */
2002 head
= &h
->dyn_relocs
;
2005 /* Track dynamic relocs needed for local syms too.
2006 We really need local syms available to do this
2011 Elf_Internal_Sym
*isym
;
2013 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
2018 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
2022 vpp
= &elf_section_data (s
)->local_dynrel
;
2023 head
= (struct elf_dyn_relocs
**) vpp
;
2027 if (p
== NULL
|| p
->sec
!= sec
)
2029 size_t amt
= sizeof *p
;
2030 p
= ((struct elf_dyn_relocs
*)
2031 bfd_alloc (htab
->elf
.dynobj
, amt
));
2042 if (tilegx_elf_howto_table
[r_type
].pc_relative
)
2048 case R_TILEGX_GNU_VTINHERIT
:
2049 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
2053 case R_TILEGX_GNU_VTENTRY
:
2054 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
2068 tilegx_elf_gc_mark_hook (asection
*sec
,
2069 struct bfd_link_info
*info
,
2070 Elf_Internal_Rela
*rel
,
2071 struct elf_link_hash_entry
*h
,
2072 Elf_Internal_Sym
*sym
)
2076 switch (TILEGX_ELF_R_TYPE (rel
->r_info
))
2078 case R_TILEGX_GNU_VTINHERIT
:
2079 case R_TILEGX_GNU_VTENTRY
:
2084 /* FIXME: The test here, in check_relocs and in relocate_section
2085 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2086 if (bfd_link_pic (info
))
2088 struct bfd_link_hash_entry
*bh
;
2090 switch (TILEGX_ELF_R_TYPE (rel
->r_info
))
2092 case R_TILEGX_TLS_GD_CALL
:
2093 /* This reloc implicitly references __tls_get_addr. We know
2094 another reloc will reference the same symbol as the one
2095 on this reloc, so the real symbol and section will be
2096 gc marked when processing the other reloc. That lets
2097 us handle __tls_get_addr here. */
2099 if (! _bfd_generic_link_add_one_symbol (info
, sec
->owner
,
2100 "__tls_get_addr", 0,
2101 bfd_und_section_ptr
,
2105 h
= (struct elf_link_hash_entry
*) bh
;
2106 BFD_ASSERT (h
!= NULL
);
2108 if (h
->is_weakalias
)
2109 weakdef (h
)->mark
= 1;
2114 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
2117 /* Adjust a symbol defined by a dynamic object and referenced by a
2118 regular object. The current definition is in some section of the
2119 dynamic object, but we're not including those sections. We have to
2120 change the definition to something the rest of the link can
2124 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2125 struct elf_link_hash_entry
*h
)
2127 struct tilegx_elf_link_hash_table
*htab
;
2131 htab
= tilegx_elf_hash_table (info
);
2132 BFD_ASSERT (htab
!= NULL
);
2134 dynobj
= htab
->elf
.dynobj
;
2136 /* Make sure we know what is going on here. */
2137 BFD_ASSERT (dynobj
!= NULL
2142 && !h
->def_regular
)));
2144 /* If this is a function, put it in the procedure linkage table. We
2145 will fill in the contents of the procedure linkage table later
2146 (although we could actually do it here). */
2147 if (h
->type
== STT_FUNC
|| h
->needs_plt
)
2149 if (h
->plt
.refcount
<= 0
2150 || SYMBOL_CALLS_LOCAL (info
, h
)
2151 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2152 && h
->root
.type
== bfd_link_hash_undefweak
))
2154 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2155 reloc in an input file, but the symbol was never referred
2156 to by a dynamic object, or if all references were garbage
2157 collected. In such a case, we don't actually need to build
2158 a procedure linkage table, and we can just do a
2159 R_TILEGX_JUMPOFF_X1 relocation instead. */
2160 h
->plt
.offset
= (bfd_vma
) -1;
2167 h
->plt
.offset
= (bfd_vma
) -1;
2169 /* If this is a weak symbol, and there is a real definition, the
2170 processor independent code will have arranged for us to see the
2171 real definition first, and we can just use the same value. */
2172 if (h
->is_weakalias
)
2174 struct elf_link_hash_entry
*def
= weakdef (h
);
2175 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
2176 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
2177 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
2181 /* This is a reference to a symbol defined by a dynamic object which
2182 is not a function. */
2184 /* If we are creating a shared library, we must presume that the
2185 only references to the symbol are via the global offset table.
2186 For such cases we need not do anything here; the relocations will
2187 be handled correctly by relocate_section. */
2188 if (bfd_link_pic (info
))
2191 /* If there are no references to this symbol that do not use the
2192 GOT, we don't need to generate a copy reloc. */
2193 if (!h
->non_got_ref
)
2196 /* If -z nocopyreloc was given, we won't generate them either. */
2197 if (info
->nocopyreloc
)
2203 /* If we don't find any dynamic relocs in read-only sections, then
2204 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2205 if (!_bfd_elf_readonly_dynrelocs (h
))
2211 /* We must allocate the symbol in our .dynbss section, which will
2212 become part of the .bss section of the executable. There will be
2213 an entry for this symbol in the .dynsym section. The dynamic
2214 object will contain position independent code, so all references
2215 from the dynamic object to this symbol will go through the global
2216 offset table. The dynamic linker will use the .dynsym entry to
2217 determine the address it must put in the global offset table, so
2218 both the dynamic object and the regular object will refer to the
2219 same memory location for the variable. */
2221 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2222 to copy the initial value out of the dynamic object and into the
2223 runtime process image. We need to remember the offset into the
2224 .rel.bss section we are going to use. */
2225 if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
2227 s
= htab
->elf
.sdynrelro
;
2228 srel
= htab
->elf
.sreldynrelro
;
2232 s
= htab
->elf
.sdynbss
;
2233 srel
= htab
->elf
.srelbss
;
2235 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
2237 srel
->size
+= TILEGX_ELF_RELA_BYTES (htab
);
2241 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
2244 /* Allocate space in .plt, .got and associated reloc sections for
2248 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2250 struct bfd_link_info
*info
;
2251 struct tilegx_elf_link_hash_table
*htab
;
2252 struct elf_dyn_relocs
*p
;
2254 if (h
->root
.type
== bfd_link_hash_indirect
)
2257 info
= (struct bfd_link_info
*) inf
;
2258 htab
= tilegx_elf_hash_table (info
);
2259 BFD_ASSERT (htab
!= NULL
);
2261 if (htab
->elf
.dynamic_sections_created
2262 && h
->plt
.refcount
> 0)
2264 /* Make sure this symbol is output as a dynamic symbol.
2265 Undefined weak syms won't yet be marked as dynamic. */
2266 if (h
->dynindx
== -1
2267 && !h
->forced_local
)
2269 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2273 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
2275 asection
*s
= htab
->elf
.splt
;
2277 /* Allocate room for the header and tail. */
2280 s
->size
= PLT_ENTRY_SIZE
;
2283 h
->plt
.offset
= s
->size
- PLT_ENTRY_SIZE
+ PLT_HEADER_SIZE
;
2285 /* If this symbol is not defined in a regular file, and we are
2286 not generating a shared library, then set the symbol to this
2287 location in the .plt. This is required to make function
2288 pointers compare as equal between the normal executable and
2289 the shared library. */
2290 if (! bfd_link_pic (info
)
2293 h
->root
.u
.def
.section
= s
;
2294 h
->root
.u
.def
.value
= h
->plt
.offset
;
2297 /* Make room for this entry. */
2298 s
->size
+= PLT_ENTRY_SIZE
;
2300 /* We also need to make an entry in the .got.plt section. */
2301 htab
->elf
.sgotplt
->size
+= GOT_ENTRY_SIZE (htab
);
2303 /* We also need to make an entry in the .rela.plt section. */
2304 htab
->elf
.srelplt
->size
+= TILEGX_ELF_RELA_BYTES (htab
);
2308 h
->plt
.offset
= (bfd_vma
) -1;
2314 h
->plt
.offset
= (bfd_vma
) -1;
2318 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2319 requiring no TLS entry. */
2320 if (h
->got
.refcount
> 0
2321 && !htab
->disable_le_transition
2322 && bfd_link_executable (info
)
2324 && tilegx_elf_hash_entry(h
)->tls_type
== GOT_TLS_IE
)
2325 h
->got
.offset
= (bfd_vma
) -1;
2326 else if (h
->got
.refcount
> 0)
2330 int tls_type
= tilegx_elf_hash_entry(h
)->tls_type
;
2332 /* Make sure this symbol is output as a dynamic symbol.
2333 Undefined weak syms won't yet be marked as dynamic. */
2334 if (h
->dynindx
== -1
2335 && !h
->forced_local
)
2337 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2342 h
->got
.offset
= s
->size
;
2343 s
->size
+= TILEGX_ELF_WORD_BYTES (htab
);
2344 /* TLS_GD entries need 2 consecutive GOT slots. */
2345 if (tls_type
== GOT_TLS_GD
)
2346 s
->size
+= TILEGX_ELF_WORD_BYTES (htab
);
2347 dyn
= htab
->elf
.dynamic_sections_created
;
2348 /* TLS_IE needs one dynamic relocation,
2349 TLS_GD needs two if local symbol and two if global. */
2350 if (tls_type
== GOT_TLS_GD
|| tls_type
== GOT_TLS_IE
)
2351 htab
->elf
.srelgot
->size
+= 2 * TILEGX_ELF_RELA_BYTES (htab
);
2352 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2353 bfd_link_pic (info
),
2355 htab
->elf
.srelgot
->size
+= TILEGX_ELF_RELA_BYTES (htab
);
2358 h
->got
.offset
= (bfd_vma
) -1;
2360 if (h
->dyn_relocs
== NULL
)
2363 /* In the shared -Bsymbolic case, discard space allocated for
2364 dynamic pc-relative relocs against symbols which turn out to be
2365 defined in regular objects. For the normal shared case, discard
2366 space for pc-relative relocs that have become local due to symbol
2367 visibility changes. */
2369 if (bfd_link_pic (info
))
2371 if (SYMBOL_CALLS_LOCAL (info
, h
))
2373 struct elf_dyn_relocs
**pp
;
2375 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
; )
2377 p
->count
-= p
->pc_count
;
2386 /* Also discard relocs on undefined weak syms with non-default
2388 if (h
->dyn_relocs
!= NULL
2389 && h
->root
.type
== bfd_link_hash_undefweak
)
2391 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2392 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
2393 h
->dyn_relocs
= NULL
;
2395 /* Make sure undefined weak symbols are output as a dynamic
2397 else if (h
->dynindx
== -1
2398 && !h
->forced_local
)
2400 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2407 /* For the non-shared case, discard space for relocs against
2408 symbols which turn out to need copy relocs or are not
2414 || (htab
->elf
.dynamic_sections_created
2415 && (h
->root
.type
== bfd_link_hash_undefweak
2416 || h
->root
.type
== bfd_link_hash_undefined
))))
2418 /* Make sure this symbol is output as a dynamic symbol.
2419 Undefined weak syms won't yet be marked as dynamic. */
2420 if (h
->dynindx
== -1
2421 && !h
->forced_local
)
2423 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2427 /* If that succeeded, we know we'll be keeping all the
2429 if (h
->dynindx
!= -1)
2433 h
->dyn_relocs
= NULL
;
2438 /* Finally, allocate space. */
2439 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2441 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2442 sreloc
->size
+= p
->count
* TILEGX_ELF_RELA_BYTES (htab
);
2448 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2449 read-only sections. */
2452 maybe_set_textrel (struct elf_link_hash_entry
*h
, void *info_p
)
2456 if (h
->root
.type
== bfd_link_hash_indirect
)
2459 sec
= _bfd_elf_readonly_dynrelocs (h
);
2462 struct bfd_link_info
*info
= (struct bfd_link_info
*) info_p
;
2464 info
->flags
|= DF_TEXTREL
;
2465 info
->callbacks
->minfo
2466 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2467 sec
->owner
, h
->root
.root
.string
, sec
);
2469 /* Not an error, just cut short the traversal. */
2475 /* Return true if the dynamic symbol for a given section should be
2476 omitted when creating a shared library. */
2479 tilegx_elf_omit_section_dynsym (bfd
*output_bfd
,
2480 struct bfd_link_info
*info
,
2483 /* We keep the .got section symbol so that explicit relocations
2484 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2485 can be turned into relocations against the .got symbol. */
2486 if (strcmp (p
->name
, ".got") == 0)
2489 return _bfd_elf_omit_section_dynsym_default (output_bfd
, info
, p
);
2493 tilegx_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2494 struct bfd_link_info
*info
)
2496 struct tilegx_elf_link_hash_table
*htab
;
2501 htab
= tilegx_elf_hash_table (info
);
2502 BFD_ASSERT (htab
!= NULL
);
2503 dynobj
= htab
->elf
.dynobj
;
2504 BFD_ASSERT (dynobj
!= NULL
);
2506 if (elf_hash_table (info
)->dynamic_sections_created
)
2508 /* Set the contents of the .interp section to the interpreter. */
2509 if (bfd_link_executable (info
) && !info
->nointerp
)
2511 s
= bfd_get_linker_section (dynobj
, ".interp");
2512 BFD_ASSERT (s
!= NULL
);
2513 s
->size
= strlen (htab
->dynamic_interpreter
) + 1;
2514 s
->contents
= (unsigned char *) htab
->dynamic_interpreter
;
2518 /* Set up .got offsets for local syms, and space for local dynamic
2520 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2522 bfd_signed_vma
*local_got
;
2523 bfd_signed_vma
*end_local_got
;
2524 char *local_tls_type
;
2525 bfd_size_type locsymcount
;
2526 Elf_Internal_Shdr
*symtab_hdr
;
2529 if (! is_tilegx_elf (ibfd
))
2532 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2534 struct elf_dyn_relocs
*p
;
2536 for (p
= elf_section_data (s
)->local_dynrel
; p
!= NULL
; p
= p
->next
)
2538 if (!bfd_is_abs_section (p
->sec
)
2539 && bfd_is_abs_section (p
->sec
->output_section
))
2541 /* Input section has been discarded, either because
2542 it is a copy of a linkonce section or due to
2543 linker script /DISCARD/, so we'll be discarding
2546 else if (p
->count
!= 0)
2548 srel
= elf_section_data (p
->sec
)->sreloc
;
2549 srel
->size
+= p
->count
* TILEGX_ELF_RELA_BYTES (htab
);
2550 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2552 info
->flags
|= DF_TEXTREL
;
2554 info
->callbacks
->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2555 p
->sec
->owner
, p
->sec
);
2561 local_got
= elf_local_got_refcounts (ibfd
);
2565 symtab_hdr
= &elf_symtab_hdr (ibfd
);
2566 locsymcount
= symtab_hdr
->sh_info
;
2567 end_local_got
= local_got
+ locsymcount
;
2568 local_tls_type
= _bfd_tilegx_elf_local_got_tls_type (ibfd
);
2570 srel
= htab
->elf
.srelgot
;
2571 for (; local_got
< end_local_got
; ++local_got
, ++local_tls_type
)
2575 *local_got
= s
->size
;
2576 s
->size
+= TILEGX_ELF_WORD_BYTES (htab
);
2577 if (*local_tls_type
== GOT_TLS_GD
)
2578 s
->size
+= TILEGX_ELF_WORD_BYTES (htab
);
2579 if (bfd_link_pic (info
)
2580 || *local_tls_type
== GOT_TLS_GD
2581 || *local_tls_type
== GOT_TLS_IE
)
2582 srel
->size
+= TILEGX_ELF_RELA_BYTES (htab
);
2585 *local_got
= (bfd_vma
) -1;
2589 /* Allocate global sym .plt and .got entries, and space for global
2590 sym dynamic relocs. */
2591 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, info
);
2593 if (elf_hash_table (info
)->dynamic_sections_created
)
2595 /* If the .got section is more than 0x8000 bytes, we add
2596 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2597 bit relocations have a greater chance of working. */
2598 if (htab
->elf
.sgot
->size
>= 0x8000
2599 && elf_hash_table (info
)->hgot
->root
.u
.def
.value
== 0)
2600 elf_hash_table (info
)->hgot
->root
.u
.def
.value
= 0x8000;
2603 if (htab
->elf
.sgotplt
)
2605 struct elf_link_hash_entry
*got
;
2606 got
= elf_link_hash_lookup (elf_hash_table (info
),
2607 "_GLOBAL_OFFSET_TABLE_",
2608 FALSE
, FALSE
, FALSE
);
2610 /* Don't allocate .got.plt section if there are no GOT nor PLT
2611 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2613 || !got
->ref_regular_nonweak
)
2614 && (htab
->elf
.sgotplt
->size
2615 == (unsigned)GOTPLT_HEADER_SIZE (htab
))
2616 && (htab
->elf
.splt
== NULL
2617 || htab
->elf
.splt
->size
== 0)
2618 && (htab
->elf
.sgot
== NULL
2619 || (htab
->elf
.sgot
->size
2620 == get_elf_backend_data (output_bfd
)->got_header_size
)))
2621 htab
->elf
.sgotplt
->size
= 0;
2624 /* The check_relocs and adjust_dynamic_symbol entry points have
2625 determined the sizes of the various dynamic sections. Allocate
2627 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2629 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2632 if (s
== htab
->elf
.splt
2633 || s
== htab
->elf
.sgot
2634 || s
== htab
->elf
.sgotplt
2635 || s
== htab
->elf
.sdynbss
2636 || s
== htab
->elf
.sdynrelro
)
2638 /* Strip this section if we don't need it; see the
2641 else if (strncmp (s
->name
, ".rela", 5) == 0)
2645 /* We use the reloc_count field as a counter if we need
2646 to copy relocs into the output file. */
2652 /* It's not one of our sections. */
2658 /* If we don't need this section, strip it from the
2659 output file. This is mostly to handle .rela.bss and
2660 .rela.plt. We must create both sections in
2661 create_dynamic_sections, because they must be created
2662 before the linker maps input sections to output
2663 sections. The linker does that before
2664 adjust_dynamic_symbol is called, and it is that
2665 function which decides whether anything needs to go
2666 into these sections. */
2667 s
->flags
|= SEC_EXCLUDE
;
2671 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2674 /* Allocate memory for the section contents. Zero the memory
2675 for the benefit of .rela.plt, which has 4 unused entries
2676 at the beginning, and we don't want garbage. */
2677 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
2678 if (s
->contents
== NULL
)
2682 if (elf_hash_table (info
)->dynamic_sections_created
)
2684 /* Add some entries to the .dynamic section. We fill in the
2685 values later, in tilegx_elf_finish_dynamic_sections, but we
2686 must add the entries now so that we get the correct size for
2687 the .dynamic section. The DT_DEBUG entry is filled in by the
2688 dynamic linker and used by the debugger. */
2689 #define add_dynamic_entry(TAG, VAL) \
2690 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2692 if (bfd_link_executable (info
))
2694 if (!add_dynamic_entry (DT_DEBUG
, 0))
2698 if (htab
->elf
.srelplt
->size
!= 0)
2700 if (!add_dynamic_entry (DT_PLTGOT
, 0)
2701 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
2702 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2703 || !add_dynamic_entry (DT_JMPREL
, 0))
2707 if (!add_dynamic_entry (DT_RELA
, 0)
2708 || !add_dynamic_entry (DT_RELASZ
, 0)
2709 || !add_dynamic_entry (DT_RELAENT
, TILEGX_ELF_RELA_BYTES (htab
)))
2712 /* If any dynamic relocs apply to a read-only section,
2713 then we need a DT_TEXTREL entry. */
2714 if ((info
->flags
& DF_TEXTREL
) == 0)
2715 elf_link_hash_traverse (&htab
->elf
, maybe_set_textrel
, info
);
2717 if (info
->flags
& DF_TEXTREL
)
2719 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2723 #undef add_dynamic_entry
2728 /* Return the base VMA address which should be subtracted from real addresses
2729 when resolving @dtpoff relocation.
2730 This is PT_TLS segment p_vaddr. */
2733 dtpoff_base (struct bfd_link_info
*info
)
2735 /* If tls_sec is NULL, we should have signalled an error already. */
2736 if (elf_hash_table (info
)->tls_sec
== NULL
)
2738 return elf_hash_table (info
)->tls_sec
->vma
;
2741 /* Return the relocation value for @tpoff relocation. */
2744 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
2746 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
2748 /* If tls_sec is NULL, we should have signalled an error already. */
2749 if (htab
->tls_sec
== NULL
)
2752 return (address
- htab
->tls_sec
->vma
);
2755 /* Copy SIZE bits from FROM to TO at address ADDR. */
2758 tilegx_copy_bits (bfd_byte
*addr
, int from
, int to
, int size
)
2761 for (i
= 0; i
< size
; i
++)
2763 int from_byte
= (from
+ i
) / 8;
2764 int from_bit
= (from
+ i
) % 8;
2765 int to_byte
= (to
+ i
) / 8;
2766 int to_bit
= (to
+ i
) % 8;
2767 bfd_byte to_mask
= 1 << to_bit
;
2768 addr
[to_byte
] = (addr
[to_byte
] & ~to_mask
)
2769 | ((addr
[from_byte
] >> from_bit
<< to_bit
) & to_mask
);
2773 /* Replace the MASK bits in ADDR with those in INSN, for the next
2774 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2777 tilegx_replace_insn (bfd_byte
*addr
, const bfd_byte
*mask
,
2778 const bfd_byte
*insn
)
2781 for (i
= 0; i
< TILEGX_BUNDLE_SIZE_IN_BYTES
; i
++)
2783 addr
[i
] = (addr
[i
] & ~mask
[i
]) | (insn
[i
] & mask
[i
]);
2787 /* Mask to extract the bits corresponding to an instruction in a
2788 specific pipe of a bundle. */
2789 static const bfd_byte insn_mask_X1
[] = {
2790 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2793 /* Mask to extract the bits corresponding to an instruction in a
2794 specific pipe of a bundle, minus the destination operand and the
2795 first source operand. */
2796 static const bfd_byte insn_mask_X0_no_dest_no_srca
[] = {
2797 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2800 static const bfd_byte insn_mask_X1_no_dest_no_srca
[] = {
2801 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2804 static const bfd_byte insn_mask_Y0_no_dest_no_srca
[] = {
2805 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2807 static const bfd_byte insn_mask_Y1_no_dest_no_srca
[] = {
2808 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2811 /* Mask to extract the bits corresponding to an instruction in a
2812 specific pipe of a bundle, minus the register operands. */
2813 static const bfd_byte insn_mask_X0_no_operand
[] = {
2814 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2817 static const bfd_byte insn_mask_X1_no_operand
[] = {
2818 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2821 static const bfd_byte insn_mask_Y0_no_operand
[] = {
2822 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2825 static const bfd_byte insn_mask_Y1_no_operand
[] = {
2826 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2829 /* Various instructions synthesized to support tls references. */
2831 /* ld r0, r0 in the X1 pipe, used for tls ie. */
2832 static const bfd_byte insn_tls_ie_ld_X1
[] = {
2833 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2836 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
2837 static const bfd_byte insn_tls_ie_ld4s_X1
[] = {
2838 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
2841 /* add r0, r0, tp in various pipes, used for tls ie. */
2842 static const bfd_byte insn_tls_ie_add_X0X1
[] = {
2843 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
2845 static const bfd_byte insn_tls_ie_add_Y0Y1
[] = {
2846 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
2849 /* addx r0, r0, tp in various pipes, used for tls ie. */
2850 static const bfd_byte insn_tls_ie_addx_X0X1
[] = {
2851 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
2853 static const bfd_byte insn_tls_ie_addx_Y0Y1
[] = {
2854 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
2857 /* move r0, r0 in various pipes, used for tls gd. */
2858 static const bfd_byte insn_tls_gd_add_X0X1
[] = {
2859 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
2861 static const bfd_byte insn_tls_gd_add_Y0Y1
[] = {
2862 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
2865 static const bfd_byte
*insn_move_X0X1
= insn_tls_gd_add_X0X1
;
2866 static const bfd_byte
*insn_move_Y0Y1
= insn_tls_gd_add_Y0Y1
;
2868 static const bfd_byte
*insn_add_X0X1
= insn_tls_ie_add_X0X1
;
2869 static const bfd_byte
*insn_add_Y0Y1
= insn_tls_ie_add_Y0Y1
;
2871 static const bfd_byte
*insn_addx_X0X1
= insn_tls_ie_addx_X0X1
;
2872 static const bfd_byte
*insn_addx_Y0Y1
= insn_tls_ie_addx_Y0Y1
;
2874 /* Relocate an TILEGX ELF section.
2876 The RELOCATE_SECTION function is called by the new ELF backend linker
2877 to handle the relocations for a section.
2879 The relocs are always passed as Rela structures.
2881 This function is responsible for adjusting the section contents as
2882 necessary, and (if generating a relocatable output file) adjusting
2883 the reloc addend as necessary.
2885 This function does not have to worry about setting the reloc
2886 address or the reloc symbol index.
2888 LOCAL_SYMS is a pointer to the swapped in local symbols.
2890 LOCAL_SECTIONS is an array giving the section in the input file
2891 corresponding to the st_shndx field of each local symbol.
2893 The global hash table entry for the global symbols can be found
2894 via elf_sym_hashes (input_bfd).
2896 When generating relocatable output, this function must handle
2897 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2898 going to be the section symbol corresponding to the output
2899 section, which means that the addend must be adjusted
2903 tilegx_elf_relocate_section (bfd
*output_bfd
, struct bfd_link_info
*info
,
2904 bfd
*input_bfd
, asection
*input_section
,
2905 bfd_byte
*contents
, Elf_Internal_Rela
*relocs
,
2906 Elf_Internal_Sym
*local_syms
,
2907 asection
**local_sections
)
2909 struct tilegx_elf_link_hash_table
*htab
;
2910 Elf_Internal_Shdr
*symtab_hdr
;
2911 struct elf_link_hash_entry
**sym_hashes
;
2912 bfd_vma
*local_got_offsets
;
2915 Elf_Internal_Rela
*rel
;
2916 Elf_Internal_Rela
*relend
;
2919 htab
= tilegx_elf_hash_table (info
);
2920 BFD_ASSERT (htab
!= NULL
);
2921 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
2922 sym_hashes
= elf_sym_hashes (input_bfd
);
2923 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2925 if (elf_hash_table (info
)->hgot
== NULL
)
2928 got_base
= elf_hash_table (info
)->hgot
->root
.u
.def
.value
;
2930 sreloc
= elf_section_data (input_section
)->sreloc
;
2933 num_relocs
= input_section
->reloc_count
;
2934 relend
= relocs
+ num_relocs
;
2935 for (; rel
< relend
; rel
++)
2937 int r_type
, tls_type
;
2938 bfd_boolean is_tls_iele
, is_tls_le
;
2939 reloc_howto_type
*howto
;
2940 unsigned long r_symndx
;
2941 struct elf_link_hash_entry
*h
;
2942 Elf_Internal_Sym
*sym
;
2943 tilegx_create_func create_func
;
2946 bfd_reloc_status_type r
;
2949 bfd_boolean is_plt
= FALSE
;
2950 bfd_boolean resolved_to_zero
;
2951 bfd_boolean unresolved_reloc
;
2953 r_type
= TILEGX_ELF_R_TYPE (rel
->r_info
);
2954 if (r_type
== R_TILEGX_GNU_VTINHERIT
2955 || r_type
== R_TILEGX_GNU_VTENTRY
)
2958 if ((unsigned int)r_type
>= ARRAY_SIZE (tilegx_elf_howto_table
))
2959 return _bfd_unrecognized_reloc (input_bfd
, input_section
, r_type
);
2961 howto
= tilegx_elf_howto_table
+ r_type
;
2963 /* This is a final link. */
2964 r_symndx
= TILEGX_ELF_R_SYMNDX (htab
, rel
->r_info
);
2968 unresolved_reloc
= FALSE
;
2969 if (r_symndx
< symtab_hdr
->sh_info
)
2971 sym
= local_syms
+ r_symndx
;
2972 sec
= local_sections
[r_symndx
];
2973 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2977 bfd_boolean warned ATTRIBUTE_UNUSED
;
2978 bfd_boolean ignored ATTRIBUTE_UNUSED
;
2980 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2981 r_symndx
, symtab_hdr
, sym_hashes
,
2983 unresolved_reloc
, warned
, ignored
);
2986 /* To avoid generating warning messages about truncated
2987 relocations, set the relocation's address to be the same as
2988 the start of this section. */
2989 if (input_section
->output_section
!= NULL
)
2990 relocation
= input_section
->output_section
->vma
;
2996 if (sec
!= NULL
&& discarded_section (sec
))
2997 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
2998 rel
, 1, relend
, howto
, 0, contents
);
3000 if (bfd_link_relocatable (info
))
3004 name
= h
->root
.root
.string
;
3007 name
= (bfd_elf_string_from_elf_section
3008 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
3009 if (name
== NULL
|| *name
== '\0')
3010 name
= bfd_section_name (sec
);
3015 case R_TILEGX_TLS_GD_CALL
:
3016 case R_TILEGX_IMM8_X0_TLS_GD_ADD
:
3017 case R_TILEGX_IMM8_Y0_TLS_GD_ADD
:
3018 case R_TILEGX_IMM8_X1_TLS_GD_ADD
:
3019 case R_TILEGX_IMM8_Y1_TLS_GD_ADD
:
3020 case R_TILEGX_IMM8_X0_TLS_ADD
:
3021 case R_TILEGX_IMM8_Y0_TLS_ADD
:
3022 case R_TILEGX_IMM8_X1_TLS_ADD
:
3023 case R_TILEGX_IMM8_Y1_TLS_ADD
:
3024 tls_type
= GOT_UNKNOWN
;
3025 if (h
== NULL
&& local_got_offsets
)
3027 _bfd_tilegx_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3029 tls_type
= tilegx_elf_hash_entry(h
)->tls_type
;
3031 is_tls_iele
= (bfd_link_executable (info
) || tls_type
== GOT_TLS_IE
);
3032 is_tls_le
= is_tls_iele
&& (!input_section
->sec_flg0
3033 && bfd_link_executable (info
)
3034 && (h
== NULL
|| h
->dynindx
== -1));
3036 if (r_type
== R_TILEGX_TLS_GD_CALL
)
3041 tilegx_replace_insn (contents
+ rel
->r_offset
,
3042 insn_mask_X1
, insn_move_X0X1
);
3045 else if (is_tls_iele
)
3048 if (ABI_64_P (output_bfd
))
3049 tilegx_replace_insn (contents
+ rel
->r_offset
,
3050 insn_mask_X1
, insn_tls_ie_ld_X1
);
3052 tilegx_replace_insn (contents
+ rel
->r_offset
,
3053 insn_mask_X1
, insn_tls_ie_ld4s_X1
);
3058 h
= (struct elf_link_hash_entry
*)
3059 bfd_link_hash_lookup (info
->hash
, "__tls_get_addr", FALSE
,
3061 BFD_ASSERT (h
!= NULL
);
3062 r_type
= R_TILEGX_JUMPOFF_X1_PLT
;
3063 howto
= tilegx_elf_howto_table
+ r_type
;
3065 else if (r_type
== R_TILEGX_IMM8_X0_TLS_ADD
3066 || r_type
== R_TILEGX_IMM8_X1_TLS_ADD
3067 || r_type
== R_TILEGX_IMM8_Y0_TLS_ADD
3068 || r_type
== R_TILEGX_IMM8_Y1_TLS_ADD
)
3070 bfd_boolean is_pipe0
=
3071 (r_type
== R_TILEGX_IMM8_X0_TLS_ADD
3072 || r_type
== R_TILEGX_IMM8_Y0_TLS_ADD
);
3073 bfd_boolean is_X0X1
=
3074 (r_type
== R_TILEGX_IMM8_X0_TLS_ADD
3075 || r_type
== R_TILEGX_IMM8_X1_TLS_ADD
);
3076 int dest_begin
= is_pipe0
? 0 : 31;
3078 const bfd_byte
*insn
;
3079 const bfd_byte
*mask
= NULL
;
3083 /* 1. copy dest operand into the first source operand.
3084 2. change the opcode to "move". */
3085 src_begin
= is_pipe0
? 6 : 37;
3086 insn
= is_X0X1
? insn_move_X0X1
: insn_move_Y0Y1
;
3090 case R_TILEGX_IMM8_X0_TLS_ADD
:
3091 mask
= insn_mask_X0_no_dest_no_srca
;
3093 case R_TILEGX_IMM8_X1_TLS_ADD
:
3094 mask
= insn_mask_X1_no_dest_no_srca
;
3096 case R_TILEGX_IMM8_Y0_TLS_ADD
:
3097 mask
= insn_mask_Y0_no_dest_no_srca
;
3099 case R_TILEGX_IMM8_Y1_TLS_ADD
:
3100 mask
= insn_mask_Y1_no_dest_no_srca
;
3106 /* 1. copy dest operand into the second source operand.
3107 2. change the opcode to "add". */
3108 src_begin
= is_pipe0
? 12 : 43;
3109 if (ABI_64_P (output_bfd
))
3110 insn
= is_X0X1
? insn_add_X0X1
: insn_add_Y0Y1
;
3112 insn
= is_X0X1
? insn_addx_X0X1
: insn_addx_Y0Y1
;
3116 case R_TILEGX_IMM8_X0_TLS_ADD
:
3117 mask
= insn_mask_X0_no_operand
;
3119 case R_TILEGX_IMM8_X1_TLS_ADD
:
3120 mask
= insn_mask_X1_no_operand
;
3122 case R_TILEGX_IMM8_Y0_TLS_ADD
:
3123 mask
= insn_mask_Y0_no_operand
;
3125 case R_TILEGX_IMM8_Y1_TLS_ADD
:
3126 mask
= insn_mask_Y1_no_operand
;
3131 tilegx_copy_bits (contents
+ rel
->r_offset
, dest_begin
,
3133 tilegx_replace_insn (contents
+ rel
->r_offset
, mask
, insn
);
3139 const bfd_byte
*mask
= NULL
;
3140 const bfd_byte
*add_insn
= NULL
;
3141 bfd_boolean is_64bit
= ABI_64_P (output_bfd
);
3145 case R_TILEGX_IMM8_X0_TLS_GD_ADD
:
3146 add_insn
= is_tls_iele
3147 ? (is_64bit
? insn_tls_ie_add_X0X1
: insn_tls_ie_addx_X0X1
)
3148 : insn_tls_gd_add_X0X1
;
3149 mask
= insn_mask_X0_no_dest_no_srca
;
3151 case R_TILEGX_IMM8_X1_TLS_GD_ADD
:
3152 add_insn
= is_tls_iele
3153 ? (is_64bit
? insn_tls_ie_add_X0X1
: insn_tls_ie_addx_X0X1
)
3154 : insn_tls_gd_add_X0X1
;
3155 mask
= insn_mask_X1_no_dest_no_srca
;
3157 case R_TILEGX_IMM8_Y0_TLS_GD_ADD
:
3158 add_insn
= is_tls_iele
3159 ? (is_64bit
? insn_tls_ie_add_Y0Y1
: insn_tls_ie_addx_Y0Y1
)
3160 : insn_tls_gd_add_Y0Y1
;
3161 mask
= insn_mask_Y0_no_dest_no_srca
;
3163 case R_TILEGX_IMM8_Y1_TLS_GD_ADD
:
3164 add_insn
= is_tls_iele
3165 ? (is_64bit
? insn_tls_ie_add_Y0Y1
: insn_tls_ie_addx_Y0Y1
)
3166 : insn_tls_gd_add_Y0Y1
;
3167 mask
= insn_mask_Y1_no_dest_no_srca
;
3171 tilegx_replace_insn (contents
+ rel
->r_offset
, mask
, add_insn
);
3176 case R_TILEGX_TLS_IE_LOAD
:
3177 if (!input_section
->sec_flg0
3178 && bfd_link_executable (info
)
3179 && (h
== NULL
|| h
->dynindx
== -1))
3182 tilegx_replace_insn (contents
+ rel
->r_offset
,
3183 insn_mask_X1_no_dest_no_srca
,
3189 if (ABI_64_P (output_bfd
))
3190 tilegx_replace_insn (contents
+ rel
->r_offset
,
3191 insn_mask_X1_no_dest_no_srca
,
3194 tilegx_replace_insn (contents
+ rel
->r_offset
,
3195 insn_mask_X1_no_dest_no_srca
,
3196 insn_tls_ie_ld4s_X1
);
3204 resolved_to_zero
= (h
!= NULL
3205 && UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
));
3209 case R_TILEGX_IMM16_X0_HW0_GOT
:
3210 case R_TILEGX_IMM16_X1_HW0_GOT
:
3211 case R_TILEGX_IMM16_X0_HW0_LAST_GOT
:
3212 case R_TILEGX_IMM16_X1_HW0_LAST_GOT
:
3213 case R_TILEGX_IMM16_X0_HW1_LAST_GOT
:
3214 case R_TILEGX_IMM16_X1_HW1_LAST_GOT
:
3215 /* Relocation is to the entry for this symbol in the global
3217 if (htab
->elf
.sgot
== NULL
)
3224 off
= h
->got
.offset
;
3225 BFD_ASSERT (off
!= (bfd_vma
) -1);
3226 dyn
= elf_hash_table (info
)->dynamic_sections_created
;
3228 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3229 bfd_link_pic (info
),
3231 || (bfd_link_pic (info
)
3232 && SYMBOL_REFERENCES_LOCAL (info
, h
)))
3234 /* This is actually a static link, or it is a
3235 -Bsymbolic link and the symbol is defined
3236 locally, or the symbol was forced to be local
3237 because of a version file. We must initialize
3238 this entry in the global offset table. Since the
3239 offset must always be a multiple
3240 of 8 for 64-bit, we use the least significant bit
3241 to record whether we have initialized it already.
3243 When doing a dynamic link, we create a .rela.got
3244 relocation entry to initialize the value. This
3245 is done in the finish_dynamic_symbol routine. */
3250 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
3251 htab
->elf
.sgot
->contents
+ off
);
3256 unresolved_reloc
= FALSE
;
3260 BFD_ASSERT (local_got_offsets
!= NULL
3261 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
3263 off
= local_got_offsets
[r_symndx
];
3265 /* The offset must always be a multiple of 8 on 64-bit.
3266 We use the least significant bit to record
3267 whether we have already processed this entry. */
3272 if (bfd_link_pic (info
))
3275 Elf_Internal_Rela outrel
;
3277 /* We need to generate a R_TILEGX_RELATIVE reloc
3278 for the dynamic linker. */
3279 s
= htab
->elf
.srelgot
;
3280 BFD_ASSERT (s
!= NULL
);
3282 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
3283 + htab
->elf
.sgot
->output_offset
3286 TILEGX_ELF_R_INFO (htab
, NULL
, 0, R_TILEGX_RELATIVE
);
3287 outrel
.r_addend
= relocation
;
3289 tilegx_elf_append_rela (output_bfd
, s
, &outrel
);
3292 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
3293 htab
->elf
.sgot
->contents
+ off
);
3294 local_got_offsets
[r_symndx
] |= 1;
3297 relocation
= off
- got_base
;
3300 case R_TILEGX_JUMPOFF_X1_PLT
:
3301 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL
:
3302 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL
:
3303 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL
:
3304 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL
:
3305 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL
:
3306 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL
:
3307 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL
:
3308 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL
:
3309 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL
:
3310 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL
:
3311 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL
:
3312 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL
:
3313 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL
:
3314 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL
:
3315 /* Relocation is to the entry for this symbol in the
3316 procedure linkage table. */
3317 BFD_ASSERT (h
!= NULL
);
3319 if (h
->plt
.offset
== (bfd_vma
) -1 || htab
->elf
.splt
== NULL
)
3321 /* We didn't make a PLT entry for this symbol. This
3322 happens when statically linking PIC code, or when
3323 using -Bsymbolic. */
3327 relocation
= (htab
->elf
.splt
->output_section
->vma
3328 + htab
->elf
.splt
->output_offset
3330 unresolved_reloc
= FALSE
;
3333 case R_TILEGX_64_PCREL
:
3334 case R_TILEGX_32_PCREL
:
3335 case R_TILEGX_16_PCREL
:
3336 case R_TILEGX_8_PCREL
:
3337 case R_TILEGX_IMM16_X0_HW0_PCREL
:
3338 case R_TILEGX_IMM16_X1_HW0_PCREL
:
3339 case R_TILEGX_IMM16_X0_HW1_PCREL
:
3340 case R_TILEGX_IMM16_X1_HW1_PCREL
:
3341 case R_TILEGX_IMM16_X0_HW2_PCREL
:
3342 case R_TILEGX_IMM16_X1_HW2_PCREL
:
3343 case R_TILEGX_IMM16_X0_HW3_PCREL
:
3344 case R_TILEGX_IMM16_X1_HW3_PCREL
:
3345 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL
:
3346 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL
:
3347 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL
:
3348 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL
:
3349 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL
:
3350 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL
:
3352 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
3363 case R_TILEGX_HW0_LAST
:
3364 case R_TILEGX_HW1_LAST
:
3365 case R_TILEGX_HW2_LAST
:
3367 case R_TILEGX_GLOB_DAT
:
3368 case R_TILEGX_JMP_SLOT
:
3369 case R_TILEGX_RELATIVE
:
3370 case R_TILEGX_BROFF_X1
:
3371 case R_TILEGX_JUMPOFF_X1
:
3372 case R_TILEGX_IMM8_X0
:
3373 case R_TILEGX_IMM8_Y0
:
3374 case R_TILEGX_IMM8_X1
:
3375 case R_TILEGX_IMM8_Y1
:
3376 case R_TILEGX_DEST_IMM8_X1
:
3377 case R_TILEGX_MT_IMM14_X1
:
3378 case R_TILEGX_MF_IMM14_X1
:
3379 case R_TILEGX_MMSTART_X0
:
3380 case R_TILEGX_MMEND_X0
:
3381 case R_TILEGX_SHAMT_X0
:
3382 case R_TILEGX_SHAMT_X1
:
3383 case R_TILEGX_SHAMT_Y0
:
3384 case R_TILEGX_SHAMT_Y1
:
3385 case R_TILEGX_IMM16_X0_HW0
:
3386 case R_TILEGX_IMM16_X1_HW0
:
3387 case R_TILEGX_IMM16_X0_HW1
:
3388 case R_TILEGX_IMM16_X1_HW1
:
3389 case R_TILEGX_IMM16_X0_HW2
:
3390 case R_TILEGX_IMM16_X1_HW2
:
3391 case R_TILEGX_IMM16_X0_HW3
:
3392 case R_TILEGX_IMM16_X1_HW3
:
3393 case R_TILEGX_IMM16_X0_HW0_LAST
:
3394 case R_TILEGX_IMM16_X1_HW0_LAST
:
3395 case R_TILEGX_IMM16_X0_HW1_LAST
:
3396 case R_TILEGX_IMM16_X1_HW1_LAST
:
3397 case R_TILEGX_IMM16_X0_HW2_LAST
:
3398 case R_TILEGX_IMM16_X1_HW2_LAST
:
3399 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3402 if ((bfd_link_pic (info
)
3404 || (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
3405 && !resolved_to_zero
)
3406 || h
->root
.type
!= bfd_link_hash_undefweak
)
3407 && (! howto
->pc_relative
3408 || !SYMBOL_CALLS_LOCAL (info
, h
)))
3409 || (!bfd_link_pic (info
)
3415 || h
->root
.type
== bfd_link_hash_undefweak
3416 || h
->root
.type
== bfd_link_hash_undefined
)))
3418 Elf_Internal_Rela outrel
;
3419 bfd_boolean skip
, relocate
= FALSE
;
3421 /* When generating a shared object, these relocations
3422 are copied into the output file to be resolved at run
3425 BFD_ASSERT (sreloc
!= NULL
);
3430 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3432 if (outrel
.r_offset
== (bfd_vma
) -1)
3434 else if (outrel
.r_offset
== (bfd_vma
) -2)
3435 skip
= TRUE
, relocate
= TRUE
;
3436 outrel
.r_offset
+= (input_section
->output_section
->vma
3437 + input_section
->output_offset
);
3441 case R_TILEGX_64_PCREL
:
3442 case R_TILEGX_32_PCREL
:
3443 case R_TILEGX_16_PCREL
:
3444 case R_TILEGX_8_PCREL
:
3445 /* If the symbol is not dynamic, we should not keep
3446 a dynamic relocation. But an .rela.* slot has been
3447 allocated for it, output R_TILEGX_NONE.
3448 FIXME: Add code tracking needed dynamic relocs as
3450 if (h
->dynindx
== -1)
3451 skip
= TRUE
, relocate
= TRUE
;
3456 memset (&outrel
, 0, sizeof outrel
);
3457 /* h->dynindx may be -1 if the symbol was marked to
3459 else if (h
!= NULL
&&
3462 || !bfd_link_pic (info
)
3463 || !SYMBOLIC_BIND (info
, h
)
3464 || !h
->def_regular
))
3466 BFD_ASSERT (h
->dynindx
!= -1);
3467 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, rel
, h
->dynindx
, r_type
);
3468 outrel
.r_addend
= rel
->r_addend
;
3472 if (r_type
== R_TILEGX_32
|| r_type
== R_TILEGX_64
)
3474 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, 0,
3476 outrel
.r_addend
= relocation
+ rel
->r_addend
;
3482 outrel
.r_addend
= relocation
+ rel
->r_addend
;
3485 sec
= htab
->elf
.splt
;
3487 if (bfd_is_abs_section (sec
))
3489 else if (sec
== NULL
|| sec
->owner
== NULL
)
3491 bfd_set_error (bfd_error_bad_value
);
3498 /* We are turning this relocation into one
3499 against a section symbol. It would be
3500 proper to subtract the symbol's value,
3501 osec->vma, from the emitted reloc addend,
3502 but ld.so expects buggy relocs. */
3503 osec
= sec
->output_section
;
3504 indx
= elf_section_data (osec
)->dynindx
;
3508 osec
= htab
->elf
.text_index_section
;
3509 indx
= elf_section_data (osec
)->dynindx
;
3512 /* FIXME: we really should be able to link non-pic
3513 shared libraries. */
3518 (_("%pB: probably compiled without -fPIC?"),
3520 bfd_set_error (bfd_error_bad_value
);
3525 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, rel
, indx
,
3530 tilegx_elf_append_rela (output_bfd
, sreloc
, &outrel
);
3532 /* This reloc will be computed at runtime, so there's no
3533 need to do anything now. */
3539 case R_TILEGX_IMM16_X0_HW0_TLS_LE
:
3540 case R_TILEGX_IMM16_X1_HW0_TLS_LE
:
3541 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
:
3542 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
:
3543 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
:
3544 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
:
3545 if (!bfd_link_executable (info
))
3547 Elf_Internal_Rela outrel
;
3550 BFD_ASSERT (sreloc
!= NULL
);
3553 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3555 if (outrel
.r_offset
== (bfd_vma
) -1)
3557 else if (outrel
.r_offset
== (bfd_vma
) -2)
3559 outrel
.r_offset
+= (input_section
->output_section
->vma
3560 + input_section
->output_offset
);
3562 memset (&outrel
, 0, sizeof outrel
);
3565 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, 0, r_type
);
3566 outrel
.r_addend
= relocation
- dtpoff_base (info
)
3570 tilegx_elf_append_rela (output_bfd
, sreloc
, &outrel
);
3573 relocation
= tpoff (info
, relocation
);
3576 case R_TILEGX_IMM16_X0_HW0_TLS_GD
:
3577 case R_TILEGX_IMM16_X1_HW0_TLS_GD
:
3578 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
:
3579 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
:
3580 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
:
3581 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
:
3582 case R_TILEGX_IMM16_X0_HW0_TLS_IE
:
3583 case R_TILEGX_IMM16_X1_HW0_TLS_IE
:
3584 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
:
3585 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
:
3586 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
:
3587 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
:
3588 r_type
= tilegx_elf_tls_transition (info
, r_type
, h
== NULL
,
3589 input_section
->sec_flg0
);
3590 tls_type
= GOT_UNKNOWN
;
3591 if (h
== NULL
&& local_got_offsets
)
3593 _bfd_tilegx_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3596 tls_type
= tilegx_elf_hash_entry(h
)->tls_type
;
3597 if (bfd_link_executable (info
)
3599 && tls_type
== GOT_TLS_IE
)
3600 r_type
= (!input_section
->sec_flg0
3601 ? tilegx_tls_translate_to_le (r_type
)
3602 : tilegx_tls_translate_to_ie (r_type
));
3605 if (tls_type
== GOT_TLS_IE
)
3606 r_type
= tilegx_tls_translate_to_ie (r_type
);
3608 if (r_type
== R_TILEGX_IMM16_X0_HW0_TLS_LE
3609 || r_type
== R_TILEGX_IMM16_X1_HW0_TLS_LE
3610 || r_type
== R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3611 || r_type
== R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3612 || r_type
== R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3613 || r_type
== R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE
)
3615 relocation
= tpoff (info
, relocation
);
3621 off
= h
->got
.offset
;
3626 BFD_ASSERT (local_got_offsets
!= NULL
);
3627 off
= local_got_offsets
[r_symndx
];
3628 local_got_offsets
[r_symndx
] |= 1;
3631 if (htab
->elf
.sgot
== NULL
)
3638 Elf_Internal_Rela outrel
;
3640 bfd_boolean need_relocs
= FALSE
;
3642 if (htab
->elf
.srelgot
== NULL
)
3648 dyn
= htab
->elf
.dynamic_sections_created
;
3650 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3651 bfd_link_pic (info
),
3653 && (!bfd_link_pic (info
)
3654 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
3660 /* The GOT entries have not been initialized yet. Do it
3661 now, and emit any relocations. */
3662 if ((bfd_link_pic (info
) || indx
!= 0)
3664 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
3665 || h
->root
.type
!= bfd_link_hash_undefweak
))
3670 case R_TILEGX_IMM16_X0_HW0_TLS_IE
:
3671 case R_TILEGX_IMM16_X1_HW0_TLS_IE
:
3672 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE
:
3673 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE
:
3674 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE
:
3675 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE
:
3677 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, 0,
3678 htab
->elf
.sgot
->contents
+ off
);
3679 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
3680 + htab
->elf
.sgot
->output_offset
+ off
);
3681 outrel
.r_addend
= 0;
3683 outrel
.r_addend
= relocation
- dtpoff_base (info
);
3684 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, indx
,
3685 TILEGX_ELF_TPOFF_RELOC (htab
));
3686 tilegx_elf_append_rela (output_bfd
, htab
->elf
.srelgot
, &outrel
);
3688 TILEGX_ELF_PUT_WORD (htab
, output_bfd
,
3689 tpoff (info
, relocation
),
3690 htab
->elf
.sgot
->contents
+ off
);
3694 case R_TILEGX_IMM16_X0_HW0_TLS_GD
:
3695 case R_TILEGX_IMM16_X1_HW0_TLS_GD
:
3696 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD
:
3697 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD
:
3698 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD
:
3699 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD
:
3701 outrel
.r_offset
= (htab
->elf
.sgot
->output_section
->vma
3702 + htab
->elf
.sgot
->output_offset
+ off
);
3703 outrel
.r_addend
= 0;
3704 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, indx
,
3705 TILEGX_ELF_DTPMOD_RELOC (htab
));
3706 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, 0,
3707 htab
->elf
.sgot
->contents
+ off
);
3708 tilegx_elf_append_rela (output_bfd
, htab
->elf
.srelgot
, &outrel
);
3711 BFD_ASSERT (! unresolved_reloc
);
3712 TILEGX_ELF_PUT_WORD (htab
, output_bfd
,
3713 relocation
- dtpoff_base (info
),
3714 (htab
->elf
.sgot
->contents
+ off
+
3715 TILEGX_ELF_WORD_BYTES (htab
)));
3719 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, 0,
3720 (htab
->elf
.sgot
->contents
+ off
+
3721 TILEGX_ELF_WORD_BYTES (htab
)));
3722 outrel
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, indx
,
3723 TILEGX_ELF_DTPOFF_RELOC (htab
));
3724 outrel
.r_offset
+= TILEGX_ELF_WORD_BYTES (htab
);
3725 tilegx_elf_append_rela (output_bfd
, htab
->elf
.srelgot
, &outrel
);
3730 /* If we are not emitting relocations for a
3731 general dynamic reference, then we must be in a
3732 static link or an executable link with the
3733 symbol binding locally. Mark it as belonging
3734 to module 1, the executable. */
3735 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, 1,
3736 htab
->elf
.sgot
->contents
+ off
);
3737 TILEGX_ELF_PUT_WORD (htab
, output_bfd
,
3738 relocation
- dtpoff_base (info
),
3739 htab
->elf
.sgot
->contents
+ off
+
3740 TILEGX_ELF_WORD_BYTES (htab
));
3746 if (off
>= (bfd_vma
) -2)
3749 relocation
= off
- got_base
;
3750 unresolved_reloc
= FALSE
;
3751 howto
= tilegx_elf_howto_table
+ r_type
;
3758 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3759 because such sections are not SEC_ALLOC and thus ld.so will
3760 not process them. */
3761 if (unresolved_reloc
3762 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
3764 && _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3765 rel
->r_offset
) != (bfd_vma
) -1)
3767 /* xgettext:c-format */
3768 (_("%pB(%pA+%#" PRIx64
"): "
3769 "unresolvable %s relocation against symbol `%s'"),
3772 (uint64_t) rel
->r_offset
,
3774 h
->root
.root
.string
);
3776 r
= bfd_reloc_continue
;
3778 /* Get the operand creation function, if any. */
3779 create_func
= reloc_to_create_func
[r_type
];
3780 if (create_func
== NULL
)
3782 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3783 contents
, rel
->r_offset
,
3784 relocation
, rel
->r_addend
);
3788 if (howto
->pc_relative
)
3791 input_section
->output_section
->vma
+ input_section
->output_offset
;
3792 if (howto
->pcrel_offset
)
3793 relocation
-= rel
->r_offset
;
3798 /* Add the relocation addend if any to the final target value */
3799 relocation
+= rel
->r_addend
;
3801 /* Do basic range checking */
3802 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3805 TILEGX_ELF_WORD_BYTES (htab
) * 8,
3809 * Write the relocated value out into the raw section data.
3810 * Don't put a relocation out in the .rela section.
3812 tilegx_bundle_bits mask
= create_func(-1);
3813 tilegx_bundle_bits value
= create_func(relocation
>> howto
->rightshift
);
3815 /* Only touch bytes while the mask is not 0, so we
3816 don't write to out of bounds memory if this is actually
3817 a 16-bit switch instruction. */
3818 for (data
= contents
+ rel
->r_offset
; mask
!= 0; data
++)
3820 bfd_byte byte_mask
= (bfd_byte
)mask
;
3821 *data
= (*data
& ~byte_mask
) | ((bfd_byte
)value
& byte_mask
);
3827 if (r
!= bfd_reloc_ok
)
3829 const char *msg
= NULL
;
3833 case bfd_reloc_overflow
:
3834 (*info
->callbacks
->reloc_overflow
)
3835 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3836 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
3839 case bfd_reloc_undefined
:
3840 (*info
->callbacks
->undefined_symbol
)
3841 (info
, name
, input_bfd
, input_section
, rel
->r_offset
, TRUE
);
3844 case bfd_reloc_outofrange
:
3845 msg
= _("internal error: out of range error");
3848 case bfd_reloc_notsupported
:
3849 msg
= _("internal error: unsupported relocation error");
3852 case bfd_reloc_dangerous
:
3853 msg
= _("internal error: dangerous relocation");
3857 msg
= _("internal error: unknown error");
3862 (*info
->callbacks
->warning
) (info
, msg
, name
, input_bfd
,
3863 input_section
, rel
->r_offset
);
3870 /* Finish up dynamic symbol handling. We set the contents of various
3871 dynamic sections here. */
3874 tilegx_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3875 struct bfd_link_info
*info
,
3876 struct elf_link_hash_entry
*h
,
3877 Elf_Internal_Sym
*sym
)
3879 struct tilegx_elf_link_hash_table
*htab
;
3881 htab
= tilegx_elf_hash_table (info
);
3882 BFD_ASSERT (htab
!= NULL
);
3884 if (h
->plt
.offset
!= (bfd_vma
) -1)
3889 Elf_Internal_Rela rela
;
3892 const struct elf_backend_data
*bed
= get_elf_backend_data (output_bfd
);
3897 /* This symbol has an entry in the PLT. Set it up. */
3899 BFD_ASSERT (h
->dynindx
!= -1);
3901 splt
= htab
->elf
.splt
;
3902 srela
= htab
->elf
.srelplt
;
3903 sgotplt
= htab
->elf
.sgotplt
;
3905 if (splt
== NULL
|| srela
== NULL
)
3908 /* Fill in the entry in the procedure linkage table. */
3909 rela_index
= tilegx_plt_entry_build (output_bfd
, htab
, splt
, sgotplt
,
3910 h
->plt
.offset
, &r_offset
);
3912 /* Fill in the entry in the global offset table, which initially points
3913 to the beginning of the plt. */
3914 TILEGX_ELF_PUT_WORD (htab
, output_bfd
,
3915 splt
->output_section
->vma
+ splt
->output_offset
,
3916 sgotplt
->contents
+ r_offset
);
3918 /* Fill in the entry in the .rela.plt section. */
3919 rela
.r_offset
= (sgotplt
->output_section
->vma
3920 + sgotplt
->output_offset
3923 rela
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_TILEGX_JMP_SLOT
);
3925 loc
= srela
->contents
+ rela_index
* TILEGX_ELF_RELA_BYTES (htab
);
3926 bed
->s
->swap_reloca_out (output_bfd
, &rela
, loc
);
3928 if (!h
->def_regular
)
3930 /* Mark the symbol as undefined, rather than as defined in
3931 the .plt section. Leave the value alone. */
3932 sym
->st_shndx
= SHN_UNDEF
;
3933 /* If the symbol is weak, we do need to clear the value.
3934 Otherwise, the PLT entry would provide a definition for
3935 the symbol even if the symbol wasn't defined anywhere,
3936 and so the symbol would never be NULL. */
3937 if (!h
->ref_regular_nonweak
)
3942 if (h
->got
.offset
!= (bfd_vma
) -1
3943 && tilegx_elf_hash_entry(h
)->tls_type
!= GOT_TLS_GD
3944 && tilegx_elf_hash_entry(h
)->tls_type
!= GOT_TLS_IE
)
3948 Elf_Internal_Rela rela
;
3950 /* This symbol has an entry in the GOT. Set it up. */
3952 sgot
= htab
->elf
.sgot
;
3953 srela
= htab
->elf
.srelgot
;
3954 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3956 rela
.r_offset
= (sgot
->output_section
->vma
3957 + sgot
->output_offset
3958 + (h
->got
.offset
&~ (bfd_vma
) 1));
3960 /* If this is a -Bsymbolic link, and the symbol is defined
3961 locally, we just want to emit a RELATIVE reloc. Likewise if
3962 the symbol was forced to be local because of a version file.
3963 The entry in the global offset table will already have been
3964 initialized in the relocate_section function. */
3965 if (bfd_link_pic (info
)
3966 && (info
->symbolic
|| h
->dynindx
== -1)
3969 asection
*sec
= h
->root
.u
.def
.section
;
3970 rela
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, 0, R_TILEGX_RELATIVE
);
3971 rela
.r_addend
= (h
->root
.u
.def
.value
3972 + sec
->output_section
->vma
3973 + sec
->output_offset
);
3977 rela
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_TILEGX_GLOB_DAT
);
3981 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, 0,
3982 sgot
->contents
+ (h
->got
.offset
& ~(bfd_vma
) 1));
3983 tilegx_elf_append_rela (output_bfd
, srela
, &rela
);
3989 Elf_Internal_Rela rela
;
3991 /* This symbols needs a copy reloc. Set it up. */
3992 BFD_ASSERT (h
->dynindx
!= -1);
3994 if (h
->root
.u
.def
.section
== htab
->elf
.sdynrelro
)
3995 s
= htab
->elf
.sreldynrelro
;
3997 s
= htab
->elf
.srelbss
;
3998 BFD_ASSERT (s
!= NULL
);
4000 rela
.r_offset
= (h
->root
.u
.def
.value
4001 + h
->root
.u
.def
.section
->output_section
->vma
4002 + h
->root
.u
.def
.section
->output_offset
);
4003 rela
.r_info
= TILEGX_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_TILEGX_COPY
);
4005 tilegx_elf_append_rela (output_bfd
, s
, &rela
);
4008 /* Mark some specially defined symbols as absolute. */
4009 if (h
== htab
->elf
.hdynamic
4010 || (h
== htab
->elf
.hgot
|| h
== htab
->elf
.hplt
))
4011 sym
->st_shndx
= SHN_ABS
;
4016 /* Finish up the dynamic sections. */
4019 tilegx_finish_dyn (bfd
*output_bfd
, struct bfd_link_info
*info
,
4020 bfd
*dynobj
, asection
*sdyn
,
4021 asection
*splt ATTRIBUTE_UNUSED
)
4023 struct tilegx_elf_link_hash_table
*htab
;
4024 const struct elf_backend_data
*bed
;
4025 bfd_byte
*dyncon
, *dynconend
;
4028 htab
= tilegx_elf_hash_table (info
);
4029 BFD_ASSERT (htab
!= NULL
);
4030 bed
= get_elf_backend_data (output_bfd
);
4031 dynsize
= bed
->s
->sizeof_dyn
;
4032 dynconend
= sdyn
->contents
+ sdyn
->size
;
4034 for (dyncon
= sdyn
->contents
; dyncon
< dynconend
; dyncon
+= dynsize
)
4036 Elf_Internal_Dyn dyn
;
4039 bed
->s
->swap_dyn_in (dynobj
, dyncon
, &dyn
);
4044 s
= htab
->elf
.sgotplt
;
4045 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4048 s
= htab
->elf
.srelplt
;
4049 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4052 s
= htab
->elf
.srelplt
;
4053 dyn
.d_un
.d_val
= s
->size
;
4059 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4065 tilegx_elf_finish_dynamic_sections (bfd
*output_bfd
,
4066 struct bfd_link_info
*info
)
4070 struct tilegx_elf_link_hash_table
*htab
;
4073 htab
= tilegx_elf_hash_table (info
);
4074 BFD_ASSERT (htab
!= NULL
);
4075 dynobj
= htab
->elf
.dynobj
;
4077 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4079 if (elf_hash_table (info
)->dynamic_sections_created
)
4084 splt
= htab
->elf
.splt
;
4085 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
4087 ret
= tilegx_finish_dyn (output_bfd
, info
, dynobj
, sdyn
, splt
);
4092 /* Fill in the head and tail entries in the procedure linkage table. */
4095 memcpy (splt
->contents
,
4096 ABI_64_P (output_bfd
) ?
4097 tilegx64_plt0_entry
: tilegx32_plt0_entry
,
4100 memcpy (splt
->contents
+ splt
->size
4101 - PLT_ENTRY_SIZE
+ PLT_HEADER_SIZE
,
4102 ABI_64_P (output_bfd
) ?
4103 tilegx64_plt_tail_entry
: tilegx32_plt_tail_entry
,
4105 /* Add padding so that the plt section is a multiple of its
4107 pad_size
= PLT_ENTRY_SIZE
- PLT_HEADER_SIZE
- PLT_TAIL_SIZE
;
4108 memset (splt
->contents
+ splt
->size
- pad_size
, 0, pad_size
);
4110 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
4115 if (htab
->elf
.sgotplt
)
4117 if (bfd_is_abs_section (htab
->elf
.sgotplt
->output_section
))
4120 (_("discarded output section: `%pA'"), htab
->elf
.sgotplt
);
4124 if (htab
->elf
.sgotplt
->size
> 0)
4126 /* Write the first two entries in .got.plt, needed for the dynamic
4128 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, (bfd_vma
) -1,
4129 htab
->elf
.sgotplt
->contents
);
4130 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, (bfd_vma
) 0,
4131 htab
->elf
.sgotplt
->contents
4132 + GOT_ENTRY_SIZE (htab
));
4134 elf_section_data (htab
->elf
.sgotplt
->output_section
)->this_hdr
.sh_entsize
=
4135 GOT_ENTRY_SIZE (htab
);
4141 if (htab
->elf
.sgot
->size
> 0)
4143 /* Set the first entry in the global offset table to the address of
4144 the dynamic section. */
4145 bfd_vma val
= (sdyn
?
4146 sdyn
->output_section
->vma
+ sdyn
->output_offset
:
4148 TILEGX_ELF_PUT_WORD (htab
, output_bfd
, val
,
4149 htab
->elf
.sgot
->contents
);
4151 elf_section_data (htab
->elf
.sgot
->output_section
)->this_hdr
.sh_entsize
=
4152 GOT_ENTRY_SIZE (htab
);
4161 /* Return address for Ith PLT stub in section PLT, for relocation REL
4162 or (bfd_vma) -1 if it should not be included. */
4165 tilegx_elf_plt_sym_val (bfd_vma i
, const asection
*plt
,
4166 const arelent
*rel ATTRIBUTE_UNUSED
)
4168 return plt
->vma
+ PLT_HEADER_SIZE
+ i
* PLT_ENTRY_SIZE
;
4171 enum elf_reloc_type_class
4172 tilegx_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4173 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4174 const Elf_Internal_Rela
*rela
)
4176 switch ((int) TILEGX_ELF_R_TYPE (rela
->r_info
))
4178 case R_TILEGX_RELATIVE
:
4179 return reloc_class_relative
;
4180 case R_TILEGX_JMP_SLOT
:
4181 return reloc_class_plt
;
4183 return reloc_class_copy
;
4185 return reloc_class_normal
;
4190 tilegx_additional_program_headers (bfd
*abfd
,
4191 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
4193 /* Each .intrpt section specified by the user adds another PT_LOAD
4194 header since the sections are discontiguous. */
4195 static const char intrpt_sections
[4][9] =
4197 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4202 for (i
= 0; i
< 4; i
++)
4204 asection
*sec
= bfd_get_section_by_name (abfd
, intrpt_sections
[i
]);
4205 if (sec
!= NULL
&& (sec
->flags
& SEC_LOAD
) != 0)
4209 /* Add four "padding" headers in to leave room in case a custom linker
4210 script does something fancy. Otherwise ld complains that it ran
4211 out of program headers and refuses to link. */
4219 _bfd_tilegx_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
4221 bfd
*obfd
= info
->output_bfd
;
4222 const char *targ1
= bfd_get_target (ibfd
);
4223 const char *targ2
= bfd_get_target (obfd
);
4225 if (strcmp (targ1
, targ2
) != 0)
4228 /* xgettext:c-format */
4229 (_("%pB: cannot link together %s and %s objects"),
4230 ibfd
, targ1
, targ2
);
4231 bfd_set_error (bfd_error_bad_value
);