1 /* TILE-Gx-specific support for ELF.
2 Copyright 2011, 2012 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 2, /* size (0 = byte, 1 = short, 2 = long) */
77 FALSE, /* pc_relative */
79 complain_overflow_bitfield, /* 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),
493 /* These relocs are currently not defined. */
501 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
502 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
503 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
504 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
505 /* These relocs are currently not defined. */
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),
540 #define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
541 HOWTO (name, rshift, 1, 16, FALSE, 0, \
542 complain_overflow_signed, bfd_elf_generic_reloc, \
543 #name, FALSE, 0, 0xffff, TRUE)
545 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0),
546 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0),
547 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16),
548 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16),
552 HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
553 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
555 HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
556 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
558 HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
559 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
562 HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
563 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
565 HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield,
566 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
568 HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
569 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
572 HOWTO (R_TILEGX_TLS_GD_CALL, /* type */
573 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
574 2, /* size (0 = byte, 1 = short, 2 = long) */
576 TRUE, /* pc_relative */
578 complain_overflow_signed,/* complain_on_overflow */
579 bfd_elf_generic_reloc, /* special_function */
580 "R_TILEGX_TLS_GD_CALL", /* name */
581 FALSE, /* partial_inplace */
584 TRUE), /* pcrel_offset */
586 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8),
587 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8),
588 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8),
589 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8),
590 TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8),
591 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8),
592 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8),
593 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8),
594 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8),
597 static reloc_howto_type tilegx_elf_howto_table2 [] =
599 /* GNU extension to record C++ vtable hierarchy */
600 HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
602 4, /* size (0 = byte, 1 = short, 2 = long) */
604 FALSE, /* pc_relative */
606 complain_overflow_dont, /* complain_on_overflow */
607 NULL, /* special_function */
608 "R_TILEGX_GNU_VTINHERIT", /* name */
609 FALSE, /* partial_inplace */
612 FALSE), /* pcrel_offset */
614 /* GNU extension to record C++ vtable member usage */
615 HOWTO (R_TILEGX_GNU_VTENTRY, /* type */
617 4, /* size (0 = byte, 1 = short, 2 = long) */
619 FALSE, /* pc_relative */
621 complain_overflow_dont, /* complain_on_overflow */
622 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
623 "R_TILEGX_GNU_VTENTRY", /* name */
624 FALSE, /* partial_inplace */
627 FALSE), /* pcrel_offset */
631 /* Map BFD reloc types to TILEGX ELF reloc types. */
633 typedef struct tilegx_reloc_map
635 bfd_reloc_code_real_type bfd_reloc_val;
636 unsigned int tilegx_reloc_val;
637 reloc_howto_type * table;
640 static const reloc_map tilegx_reloc_map [] =
642 #define TH_REMAP(bfd, tilegx) \
643 { bfd, tilegx, tilegx_elf_howto_table },
645 /* Standard relocations. */
646 TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE)
647 TH_REMAP (BFD_RELOC_64, R_TILEGX_64)
648 TH_REMAP (BFD_RELOC_32, R_TILEGX_32)
649 TH_REMAP (BFD_RELOC_16, R_TILEGX_16)
650 TH_REMAP (BFD_RELOC_8, R_TILEGX_8)
651 TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL)
652 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL)
653 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL)
654 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL)
656 #define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
658 /* Custom relocations. */
659 SIMPLE_REMAP (TILEGX_HW0)
660 SIMPLE_REMAP (TILEGX_HW1)
661 SIMPLE_REMAP (TILEGX_HW2)
662 SIMPLE_REMAP (TILEGX_HW3)
663 SIMPLE_REMAP (TILEGX_HW0_LAST)
664 SIMPLE_REMAP (TILEGX_HW1_LAST)
665 SIMPLE_REMAP (TILEGX_HW2_LAST)
666 SIMPLE_REMAP (TILEGX_COPY)
667 SIMPLE_REMAP (TILEGX_GLOB_DAT)
668 SIMPLE_REMAP (TILEGX_JMP_SLOT)
669 SIMPLE_REMAP (TILEGX_RELATIVE)
670 SIMPLE_REMAP (TILEGX_BROFF_X1)
671 SIMPLE_REMAP (TILEGX_JUMPOFF_X1)
672 SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT)
673 SIMPLE_REMAP (TILEGX_IMM8_X0)
674 SIMPLE_REMAP (TILEGX_IMM8_Y0)
675 SIMPLE_REMAP (TILEGX_IMM8_X1)
676 SIMPLE_REMAP (TILEGX_IMM8_Y1)
677 SIMPLE_REMAP (TILEGX_DEST_IMM8_X1)
678 SIMPLE_REMAP (TILEGX_MT_IMM14_X1)
679 SIMPLE_REMAP (TILEGX_MF_IMM14_X1)
680 SIMPLE_REMAP (TILEGX_MMSTART_X0)
681 SIMPLE_REMAP (TILEGX_MMEND_X0)
682 SIMPLE_REMAP (TILEGX_SHAMT_X0)
683 SIMPLE_REMAP (TILEGX_SHAMT_X1)
684 SIMPLE_REMAP (TILEGX_SHAMT_Y0)
685 SIMPLE_REMAP (TILEGX_SHAMT_Y1)
686 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0)
687 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0)
688 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1)
689 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1)
690 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2)
691 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2)
692 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3)
693 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3)
694 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST)
695 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST)
696 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST)
697 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST)
698 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST)
699 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST)
700 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL)
701 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL)
702 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL)
703 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL)
704 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL)
705 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL)
706 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL)
707 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL)
708 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL)
709 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL)
710 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL)
711 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL)
712 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL)
713 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
714 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
715 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
716 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
717 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
718 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
719 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
720 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
721 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
722 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE)
723 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE)
724 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE)
725 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE)
726 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE)
727 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
728 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD)
729 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD)
730 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD)
731 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
732 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
733 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
734 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
735 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
736 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
737 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE)
739 SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
740 SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
741 SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
743 SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
744 SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
745 SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
747 SIMPLE_REMAP (TILEGX_TLS_GD_CALL)
748 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD)
749 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD)
750 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD)
751 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD)
752 SIMPLE_REMAP (TILEGX_TLS_IE_LOAD)
753 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD)
754 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD)
755 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD)
756 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD)
761 { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 },
762 { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 },
767 /* The TILE-Gx linker needs to keep track of the number of relocs that it
768 decides to copy as dynamic relocs in check_relocs for each symbol.
769 This is so that it can later discard them if they are found to be
770 unnecessary. We store the information in a field extending the
771 regular ELF linker hash table. */
773 struct tilegx_elf_dyn_relocs
775 struct tilegx_elf_dyn_relocs *next;
777 /* The input section of the reloc. */
780 /* Total number of relocs copied for the input section. */
783 /* Number of pc-relative relocs copied for the input section. */
784 bfd_size_type pc_count;
787 /* TILEGX ELF linker hash entry. */
789 struct tilegx_elf_link_hash_entry
791 struct elf_link_hash_entry elf;
793 /* Track dynamic relocs copied for this symbol. */
794 struct tilegx_elf_dyn_relocs *dyn_relocs;
796 #define GOT_UNKNOWN 0
800 unsigned char tls_type;
803 #define tilegx_elf_hash_entry(ent) \
804 ((struct tilegx_elf_link_hash_entry *)(ent))
806 struct _bfd_tilegx_elf_obj_tdata
808 struct elf_obj_tdata root;
810 /* tls_type for each local got entry. */
811 char *local_got_tls_type;
814 #define _bfd_tilegx_elf_tdata(abfd) \
815 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
817 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
818 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
820 #define is_tilegx_elf(bfd) \
821 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
822 && elf_tdata (bfd) != NULL \
823 && elf_object_id (bfd) == TILEGX_ELF_DATA)
825 #include "elf/common.h"
826 #include "elf/internal.h"
828 struct tilegx_elf_link_hash_table
830 struct elf_link_hash_table elf;
833 int word_align_power;
838 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
839 bfd_vma (*r_symndx) (bfd_vma);
840 void (*put_word) (bfd *, bfd_vma, void *);
841 const char *dynamic_interpreter;
843 /* Short-cuts to get to dynamic linker sections. */
847 /* Whether LE transition has been disabled for some of the
849 bfd_boolean disable_le_transition;
851 /* Small local sym to section mapping cache. */
852 struct sym_cache sym_cache;
856 /* Get the Tile ELF linker hash table from a link_info structure. */
857 #define tilegx_elf_hash_table(p) \
858 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
859 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
863 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
867 return ELF64_R_INFO (rel_index, type);
871 tilegx_elf_r_symndx_64 (bfd_vma r_info)
873 return ELF64_R_SYM (r_info);
877 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
879 bfd_put_64 (abfd, val, ptr);
884 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
888 return ELF32_R_INFO (rel_index, type);
892 tilegx_elf_r_symndx_32 (bfd_vma r_info)
894 return ELF32_R_SYM (r_info);
898 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
900 bfd_put_32 (abfd, val, ptr);
904 tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
905 bfd_reloc_code_real_type code)
909 for (i = ARRAY_SIZE (tilegx_reloc_map); --i;)
911 const reloc_map * entry;
913 entry = tilegx_reloc_map + i;
915 if (entry->bfd_reloc_val == code)
916 return entry->table + (entry->tilegx_reloc_val
917 - entry->table[0].type);
924 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
930 i < (sizeof (tilegx_elf_howto_table)
931 / sizeof (tilegx_elf_howto_table[0]));
933 if (tilegx_elf_howto_table[i].name != NULL
934 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
935 return &tilegx_elf_howto_table[i];
941 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
943 Elf_Internal_Rela *dst)
945 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
947 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
948 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
949 else if (r_type - R_TILEGX_GNU_VTINHERIT
950 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
952 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
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->dyn_relocs = NULL;
1357 eh->tls_type = GOT_UNKNOWN;
1363 /* Create a TILEGX ELF linker hash table. */
1365 struct bfd_link_hash_table *
1366 tilegx_elf_link_hash_table_create (bfd *abfd)
1368 struct tilegx_elf_link_hash_table *ret;
1369 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1371 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1376 if (ABI_64_P (abfd))
1378 ret->bytes_per_word = 8;
1379 ret->word_align_power = 3;
1380 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1381 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1382 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1383 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1384 ret->r_info = tilegx_elf_r_info_64;
1385 ret->r_symndx = tilegx_elf_r_symndx_64;
1386 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1387 ret->put_word = tilegx_put_word_64;
1392 ret->bytes_per_word = 4;
1393 ret->word_align_power = 2;
1394 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1395 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1396 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1397 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1398 ret->r_info = tilegx_elf_r_info_32;
1399 ret->r_symndx = tilegx_elf_r_symndx_32;
1400 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1401 ret->put_word = tilegx_put_word_32;
1404 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1405 sizeof (struct tilegx_elf_link_hash_entry),
1412 return &ret->elf.root;
1415 /* Create the .got section. */
1418 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1421 asection *s, *s_got;
1422 struct elf_link_hash_entry *h;
1423 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1424 struct elf_link_hash_table *htab = elf_hash_table (info);
1426 /* This function may be called more than once. */
1427 s = bfd_get_linker_section (abfd, ".got");
1431 flags = bed->dynamic_sec_flags;
1433 s = bfd_make_section_anyway_with_flags (abfd,
1434 (bed->rela_plts_and_copies_p
1435 ? ".rela.got" : ".rel.got"),
1436 (bed->dynamic_sec_flags
1439 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1443 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1445 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1449 /* The first bit of the global offset table is the header. */
1450 s->size += bed->got_header_size;
1452 if (bed->want_got_plt)
1454 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
1456 || !bfd_set_section_alignment (abfd, s,
1457 bed->s->log_file_align))
1461 /* Reserve room for the header. */
1462 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1465 if (bed->want_got_sym)
1467 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1468 section. We don't do this in the linker script because we don't want
1469 to define the symbol if we are not creating a global offset
1471 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1472 "_GLOBAL_OFFSET_TABLE_");
1473 elf_hash_table (info)->hgot = h;
1481 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1482 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1486 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1487 struct bfd_link_info *info)
1489 struct tilegx_elf_link_hash_table *htab;
1491 htab = tilegx_elf_hash_table (info);
1492 BFD_ASSERT (htab != NULL);
1494 if (!tilegx_elf_create_got_section (dynobj, info))
1497 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1500 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
1502 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
1504 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1505 || (!info->shared && !htab->srelbss))
1511 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1514 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1515 struct elf_link_hash_entry *dir,
1516 struct elf_link_hash_entry *ind)
1518 struct tilegx_elf_link_hash_entry *edir, *eind;
1520 edir = (struct tilegx_elf_link_hash_entry *) dir;
1521 eind = (struct tilegx_elf_link_hash_entry *) ind;
1523 if (eind->dyn_relocs != NULL)
1525 if (edir->dyn_relocs != NULL)
1527 struct tilegx_elf_dyn_relocs **pp;
1528 struct tilegx_elf_dyn_relocs *p;
1530 /* Add reloc counts against the indirect sym to the direct sym
1531 list. Merge any entries against the same section. */
1532 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1534 struct tilegx_elf_dyn_relocs *q;
1536 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1537 if (q->sec == p->sec)
1539 q->pc_count += p->pc_count;
1540 q->count += p->count;
1547 *pp = edir->dyn_relocs;
1550 edir->dyn_relocs = eind->dyn_relocs;
1551 eind->dyn_relocs = NULL;
1554 if (ind->root.type == bfd_link_hash_indirect
1555 && dir->got.refcount <= 0)
1557 edir->tls_type = eind->tls_type;
1558 eind->tls_type = GOT_UNKNOWN;
1560 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1564 tilegx_tls_translate_to_le (int r_type)
1568 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1569 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1570 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1572 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1573 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1574 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1576 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1577 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1578 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1580 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1581 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1582 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1584 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1585 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1586 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1588 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1589 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1590 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1596 tilegx_tls_translate_to_ie (int r_type)
1600 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1601 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1602 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1604 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1605 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1606 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1608 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1609 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1610 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1612 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1613 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1614 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1616 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1617 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1618 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1620 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1621 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1622 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1628 tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1629 int is_local, bfd_boolean disable_le_transition)
1634 if (is_local && !disable_le_transition)
1635 return tilegx_tls_translate_to_le (r_type);
1637 return tilegx_tls_translate_to_ie (r_type);
1640 /* Look through the relocs for a section during the first phase, and
1641 allocate space in the global offset table or procedure linkage
1645 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1646 asection *sec, const Elf_Internal_Rela *relocs)
1648 struct tilegx_elf_link_hash_table *htab;
1649 Elf_Internal_Shdr *symtab_hdr;
1650 struct elf_link_hash_entry **sym_hashes;
1651 const Elf_Internal_Rela *rel;
1652 const Elf_Internal_Rela *rel_end;
1655 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
1657 if (info->relocatable)
1660 htab = tilegx_elf_hash_table (info);
1661 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1662 sym_hashes = elf_sym_hashes (abfd);
1666 num_relocs = sec->reloc_count;
1668 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1670 if (htab->elf.dynobj == NULL)
1671 htab->elf.dynobj = abfd;
1673 rel_end = relocs + num_relocs;
1675 /* Check whether to do optimization to transform TLS GD/IE
1676 referehces to TLS LE. We disable it if we're linking with old
1677 TLS code sequences that do not support such optimization. Old
1678 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1679 no tls_add relocations. */
1680 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1682 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1685 case R_TILEGX_TLS_GD_CALL:
1686 case R_TILEGX_TLS_IE_LOAD:
1687 has_tls_gd_or_ie = TRUE;
1689 case R_TILEGX_IMM8_X0_TLS_ADD:
1690 case R_TILEGX_IMM8_Y0_TLS_ADD:
1691 case R_TILEGX_IMM8_X1_TLS_ADD:
1692 case R_TILEGX_IMM8_Y1_TLS_ADD:
1698 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1699 htab->disable_le_transition |= sec->sec_flg0;
1701 for (rel = relocs; rel < rel_end; rel++)
1703 unsigned int r_type;
1704 unsigned long r_symndx;
1705 struct elf_link_hash_entry *h;
1708 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1709 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1711 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1713 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1718 if (r_symndx < symtab_hdr->sh_info)
1722 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1723 while (h->root.type == bfd_link_hash_indirect
1724 || h->root.type == bfd_link_hash_warning)
1725 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1728 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1732 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1733 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1734 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1735 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1736 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1737 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1739 goto r_tilegx_plt32;
1742 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1743 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1744 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1745 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1746 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1747 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1748 BFD_ASSERT (info->shared);
1749 tls_type = GOT_TLS_GD;
1750 goto have_got_reference;
1752 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1753 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1754 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1755 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1756 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1757 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1758 tls_type = GOT_TLS_IE;
1760 info->flags |= DF_STATIC_TLS;
1761 goto have_got_reference;
1763 case R_TILEGX_IMM16_X0_HW0_GOT:
1764 case R_TILEGX_IMM16_X1_HW0_GOT:
1765 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1766 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1767 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1768 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1769 tls_type = GOT_NORMAL;
1773 /* This symbol requires a global offset table entry. */
1779 h->got.refcount += 1;
1780 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1784 bfd_signed_vma *local_got_refcounts;
1786 /* This is a global offset table entry for a local symbol. */
1787 local_got_refcounts = elf_local_got_refcounts (abfd);
1788 if (local_got_refcounts == NULL)
1792 size = symtab_hdr->sh_info;
1793 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1794 local_got_refcounts = ((bfd_signed_vma *)
1795 bfd_zalloc (abfd, size));
1796 if (local_got_refcounts == NULL)
1798 elf_local_got_refcounts (abfd) = local_got_refcounts;
1799 _bfd_tilegx_elf_local_got_tls_type (abfd)
1800 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1802 local_got_refcounts[r_symndx] += 1;
1803 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1806 /* If a TLS symbol is accessed using IE at least once,
1807 there is no point to use dynamic model for it. */
1808 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1809 && (old_tls_type != GOT_TLS_GD
1810 || tls_type != GOT_TLS_IE))
1812 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1813 tls_type = old_tls_type;
1816 (*_bfd_error_handler)
1817 (_("%B: `%s' accessed both as normal and thread local symbol"),
1818 abfd, h ? h->root.root.string : "<local>");
1823 if (old_tls_type != tls_type)
1826 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1828 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1832 if (htab->elf.sgot == NULL)
1834 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1839 case R_TILEGX_TLS_GD_CALL:
1842 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1843 against __tls_get_addr. */
1844 struct bfd_link_hash_entry *bh = NULL;
1845 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1846 "__tls_get_addr", 0,
1847 bfd_und_section_ptr, 0,
1851 h = (struct elf_link_hash_entry *) bh;
1857 case R_TILEGX_JUMPOFF_X1_PLT:
1858 /* This symbol requires a procedure linkage table entry. We
1859 actually build the entry in adjust_dynamic_symbol,
1860 because this might be a case of linking PIC code without
1861 linking in any dynamic objects, in which case we don't
1862 need to generate a procedure linkage table after all. */
1867 h->plt.refcount += 1;
1871 case R_TILEGX_64_PCREL:
1872 case R_TILEGX_32_PCREL:
1873 case R_TILEGX_16_PCREL:
1874 case R_TILEGX_8_PCREL:
1875 case R_TILEGX_IMM16_X0_HW0_PCREL:
1876 case R_TILEGX_IMM16_X1_HW0_PCREL:
1877 case R_TILEGX_IMM16_X0_HW1_PCREL:
1878 case R_TILEGX_IMM16_X1_HW1_PCREL:
1879 case R_TILEGX_IMM16_X0_HW2_PCREL:
1880 case R_TILEGX_IMM16_X1_HW2_PCREL:
1881 case R_TILEGX_IMM16_X0_HW3_PCREL:
1882 case R_TILEGX_IMM16_X1_HW3_PCREL:
1883 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1884 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1885 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1886 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1887 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1888 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1893 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1905 case R_TILEGX_HW0_LAST:
1906 case R_TILEGX_HW1_LAST:
1907 case R_TILEGX_HW2_LAST:
1909 case R_TILEGX_GLOB_DAT:
1910 case R_TILEGX_JMP_SLOT:
1911 case R_TILEGX_RELATIVE:
1912 case R_TILEGX_BROFF_X1:
1913 case R_TILEGX_JUMPOFF_X1:
1914 case R_TILEGX_IMM8_X0:
1915 case R_TILEGX_IMM8_Y0:
1916 case R_TILEGX_IMM8_X1:
1917 case R_TILEGX_IMM8_Y1:
1918 case R_TILEGX_DEST_IMM8_X1:
1919 case R_TILEGX_MT_IMM14_X1:
1920 case R_TILEGX_MF_IMM14_X1:
1921 case R_TILEGX_MMSTART_X0:
1922 case R_TILEGX_MMEND_X0:
1923 case R_TILEGX_SHAMT_X0:
1924 case R_TILEGX_SHAMT_X1:
1925 case R_TILEGX_SHAMT_Y0:
1926 case R_TILEGX_SHAMT_Y1:
1927 case R_TILEGX_IMM16_X0_HW0:
1928 case R_TILEGX_IMM16_X1_HW0:
1929 case R_TILEGX_IMM16_X0_HW1:
1930 case R_TILEGX_IMM16_X1_HW1:
1931 case R_TILEGX_IMM16_X0_HW2:
1932 case R_TILEGX_IMM16_X1_HW2:
1933 case R_TILEGX_IMM16_X0_HW3:
1934 case R_TILEGX_IMM16_X1_HW3:
1935 case R_TILEGX_IMM16_X0_HW0_LAST:
1936 case R_TILEGX_IMM16_X1_HW0_LAST:
1937 case R_TILEGX_IMM16_X0_HW1_LAST:
1938 case R_TILEGX_IMM16_X1_HW1_LAST:
1939 case R_TILEGX_IMM16_X0_HW2_LAST:
1940 case R_TILEGX_IMM16_X1_HW2_LAST:
1945 if (h != NULL && !info->shared)
1947 /* We may need a .plt entry if the function this reloc
1948 refers to is in a shared lib. */
1949 h->plt.refcount += 1;
1952 /* If we are creating a shared library, and this is a reloc
1953 against a global symbol, or a non PC relative reloc
1954 against a local symbol, then we need to copy the reloc
1955 into the shared library. However, if we are linking with
1956 -Bsymbolic, we do not need to copy a reloc against a
1957 global symbol which is defined in an object we are
1958 including in the link (i.e., DEF_REGULAR is set). At
1959 this point we have not seen all the input files, so it is
1960 possible that DEF_REGULAR is not set now but will be set
1961 later (it is never cleared). In case of a weak definition,
1962 DEF_REGULAR may be cleared later by a strong definition in
1963 a shared library. We account for that possibility below by
1964 storing information in the relocs_copied field of the hash
1965 table entry. A similar situation occurs when creating
1966 shared libraries and symbol visibility changes render the
1969 If on the other hand, we are creating an executable, we
1970 may need to keep relocations for symbols satisfied by a
1971 dynamic library if we manage to avoid copy relocs for the
1974 && (sec->flags & SEC_ALLOC) != 0
1975 && (! tilegx_elf_howto_table[r_type].pc_relative
1977 && (! info->symbolic
1978 || h->root.type == bfd_link_hash_defweak
1979 || !h->def_regular))))
1981 && (sec->flags & SEC_ALLOC) != 0
1983 && (h->root.type == bfd_link_hash_defweak
1984 || !h->def_regular)))
1986 struct tilegx_elf_dyn_relocs *p;
1987 struct tilegx_elf_dyn_relocs **head;
1989 /* When creating a shared object, we must copy these
1990 relocs into the output file. We create a reloc
1991 section in dynobj and make room for the reloc. */
1994 sreloc = _bfd_elf_make_dynamic_reloc_section
1995 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2002 /* If this is a global symbol, we count the number of
2003 relocations we need for this symbol. */
2006 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2009 /* Track dynamic relocs needed for local syms too.
2010 We really need local syms available to do this
2015 Elf_Internal_Sym *isym;
2017 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2022 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2026 vpp = &elf_section_data (s)->local_dynrel;
2027 head = (struct tilegx_elf_dyn_relocs **) vpp;
2031 if (p == NULL || p->sec != sec)
2033 bfd_size_type amt = sizeof *p;
2034 p = ((struct tilegx_elf_dyn_relocs *)
2035 bfd_alloc (htab->elf.dynobj, amt));
2046 if (tilegx_elf_howto_table[r_type].pc_relative)
2052 case R_TILEGX_GNU_VTINHERIT:
2053 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2057 case R_TILEGX_GNU_VTENTRY:
2058 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2072 tilegx_elf_gc_mark_hook (asection *sec,
2073 struct bfd_link_info *info,
2074 Elf_Internal_Rela *rel,
2075 struct elf_link_hash_entry *h,
2076 Elf_Internal_Sym *sym)
2080 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2082 case R_TILEGX_GNU_VTINHERIT:
2083 case R_TILEGX_GNU_VTENTRY:
2088 /* FIXME: The test here, in check_relocs and in relocate_section
2089 dealing with TLS optimization, ought to be !info->executable. */
2092 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2094 case R_TILEGX_TLS_GD_CALL:
2095 /* This reloc implicitly references __tls_get_addr. We know
2096 another reloc will reference the same symbol as the one
2097 on this reloc, so the real symbol and section will be
2098 gc marked when processing the other reloc. That lets
2099 us handle __tls_get_addr here. */
2100 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
2101 FALSE, FALSE, TRUE);
2102 BFD_ASSERT (h != NULL);
2104 if (h->u.weakdef != NULL)
2105 h->u.weakdef->mark = 1;
2110 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2113 /* Update the got entry reference counts for the section being removed. */
2115 tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
2116 asection *sec, const Elf_Internal_Rela *relocs)
2118 struct tilegx_elf_link_hash_table *htab;
2119 Elf_Internal_Shdr *symtab_hdr;
2120 struct elf_link_hash_entry **sym_hashes;
2121 bfd_signed_vma *local_got_refcounts;
2122 const Elf_Internal_Rela *rel, *relend;
2124 if (info->relocatable)
2127 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
2129 elf_section_data (sec)->local_dynrel = NULL;
2131 htab = tilegx_elf_hash_table (info);
2132 BFD_ASSERT (htab != NULL);
2133 symtab_hdr = &elf_symtab_hdr (abfd);
2134 sym_hashes = elf_sym_hashes (abfd);
2135 local_got_refcounts = elf_local_got_refcounts (abfd);
2137 relend = relocs + sec->reloc_count;
2138 for (rel = relocs; rel < relend; rel++)
2140 unsigned long r_symndx;
2141 unsigned int r_type;
2142 struct elf_link_hash_entry *h = NULL;
2144 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2145 if (r_symndx >= symtab_hdr->sh_info)
2147 struct tilegx_elf_link_hash_entry *eh;
2148 struct tilegx_elf_dyn_relocs **pp;
2149 struct tilegx_elf_dyn_relocs *p;
2151 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2152 while (h->root.type == bfd_link_hash_indirect
2153 || h->root.type == bfd_link_hash_warning)
2154 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2155 eh = (struct tilegx_elf_link_hash_entry *) h;
2156 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2159 /* Everything must go for SEC. */
2165 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2166 r_type = tilegx_elf_tls_transition (info, r_type, h != NULL,
2170 case R_TILEGX_IMM16_X0_HW0_GOT:
2171 case R_TILEGX_IMM16_X1_HW0_GOT:
2172 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2173 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2174 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2175 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
2176 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2177 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
2178 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2179 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2180 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2181 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
2182 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2183 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
2184 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2185 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2186 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2187 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
2190 if (h->got.refcount > 0)
2195 if (local_got_refcounts &&
2196 local_got_refcounts[r_symndx] > 0)
2197 local_got_refcounts[r_symndx]--;
2201 case R_TILEGX_64_PCREL:
2202 case R_TILEGX_32_PCREL:
2203 case R_TILEGX_16_PCREL:
2204 case R_TILEGX_8_PCREL:
2205 case R_TILEGX_IMM16_X0_HW0_PCREL:
2206 case R_TILEGX_IMM16_X1_HW0_PCREL:
2207 case R_TILEGX_IMM16_X0_HW1_PCREL:
2208 case R_TILEGX_IMM16_X1_HW1_PCREL:
2209 case R_TILEGX_IMM16_X0_HW2_PCREL:
2210 case R_TILEGX_IMM16_X1_HW2_PCREL:
2211 case R_TILEGX_IMM16_X0_HW3_PCREL:
2212 case R_TILEGX_IMM16_X1_HW3_PCREL:
2213 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2214 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2215 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2216 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2217 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2218 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2220 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2232 case R_TILEGX_HW0_LAST:
2233 case R_TILEGX_HW1_LAST:
2234 case R_TILEGX_HW2_LAST:
2236 case R_TILEGX_GLOB_DAT:
2237 case R_TILEGX_JMP_SLOT:
2238 case R_TILEGX_RELATIVE:
2239 case R_TILEGX_BROFF_X1:
2240 case R_TILEGX_JUMPOFF_X1:
2241 case R_TILEGX_IMM8_X0:
2242 case R_TILEGX_IMM8_Y0:
2243 case R_TILEGX_IMM8_X1:
2244 case R_TILEGX_IMM8_Y1:
2245 case R_TILEGX_DEST_IMM8_X1:
2246 case R_TILEGX_MT_IMM14_X1:
2247 case R_TILEGX_MF_IMM14_X1:
2248 case R_TILEGX_MMSTART_X0:
2249 case R_TILEGX_MMEND_X0:
2250 case R_TILEGX_SHAMT_X0:
2251 case R_TILEGX_SHAMT_X1:
2252 case R_TILEGX_SHAMT_Y0:
2253 case R_TILEGX_SHAMT_Y1:
2254 case R_TILEGX_IMM16_X0_HW0:
2255 case R_TILEGX_IMM16_X1_HW0:
2256 case R_TILEGX_IMM16_X0_HW1:
2257 case R_TILEGX_IMM16_X1_HW1:
2258 case R_TILEGX_IMM16_X0_HW2:
2259 case R_TILEGX_IMM16_X1_HW2:
2260 case R_TILEGX_IMM16_X0_HW3:
2261 case R_TILEGX_IMM16_X1_HW3:
2262 case R_TILEGX_IMM16_X0_HW0_LAST:
2263 case R_TILEGX_IMM16_X1_HW0_LAST:
2264 case R_TILEGX_IMM16_X0_HW1_LAST:
2265 case R_TILEGX_IMM16_X1_HW1_LAST:
2266 case R_TILEGX_IMM16_X0_HW2_LAST:
2267 case R_TILEGX_IMM16_X1_HW2_LAST:
2272 case R_TILEGX_JUMPOFF_X1_PLT:
2275 if (h->plt.refcount > 0)
2288 /* Adjust a symbol defined by a dynamic object and referenced by a
2289 regular object. The current definition is in some section of the
2290 dynamic object, but we're not including those sections. We have to
2291 change the definition to something the rest of the link can
2295 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2296 struct elf_link_hash_entry *h)
2298 struct tilegx_elf_link_hash_table *htab;
2299 struct tilegx_elf_link_hash_entry * eh;
2300 struct tilegx_elf_dyn_relocs *p;
2304 htab = tilegx_elf_hash_table (info);
2305 BFD_ASSERT (htab != NULL);
2307 dynobj = htab->elf.dynobj;
2309 /* Make sure we know what is going on here. */
2310 BFD_ASSERT (dynobj != NULL
2312 || h->u.weakdef != NULL
2315 && !h->def_regular)));
2317 /* If this is a function, put it in the procedure linkage table. We
2318 will fill in the contents of the procedure linkage table later
2319 (although we could actually do it here). */
2320 if (h->type == STT_FUNC || h->needs_plt)
2322 if (h->plt.refcount <= 0
2323 || SYMBOL_CALLS_LOCAL (info, h)
2324 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2325 && h->root.type == bfd_link_hash_undefweak))
2327 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2328 reloc in an input file, but the symbol was never referred
2329 to by a dynamic object, or if all references were garbage
2330 collected. In such a case, we don't actually need to build
2331 a procedure linkage table, and we can just do a
2332 R_TILEGX_JUMPOFF_X1 relocation instead. */
2333 h->plt.offset = (bfd_vma) -1;
2340 h->plt.offset = (bfd_vma) -1;
2342 /* If this is a weak symbol, and there is a real definition, the
2343 processor independent code will have arranged for us to see the
2344 real definition first, and we can just use the same value. */
2345 if (h->u.weakdef != NULL)
2347 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2348 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2349 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2350 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2354 /* This is a reference to a symbol defined by a dynamic object which
2355 is not a function. */
2357 /* If we are creating a shared library, we must presume that the
2358 only references to the symbol are via the global offset table.
2359 For such cases we need not do anything here; the relocations will
2360 be handled correctly by relocate_section. */
2364 /* If there are no references to this symbol that do not use the
2365 GOT, we don't need to generate a copy reloc. */
2366 if (!h->non_got_ref)
2369 /* If -z nocopyreloc was given, we won't generate them either. */
2370 if (info->nocopyreloc)
2376 eh = (struct tilegx_elf_link_hash_entry *) h;
2377 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2379 s = p->sec->output_section;
2380 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2384 /* If we didn't find any dynamic relocs in read-only sections, then
2385 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2392 /* We must allocate the symbol in our .dynbss section, which will
2393 become part of the .bss section of the executable. There will be
2394 an entry for this symbol in the .dynsym section. The dynamic
2395 object will contain position independent code, so all references
2396 from the dynamic object to this symbol will go through the global
2397 offset table. The dynamic linker will use the .dynsym entry to
2398 determine the address it must put in the global offset table, so
2399 both the dynamic object and the regular object will refer to the
2400 same memory location for the variable. */
2402 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2403 to copy the initial value out of the dynamic object and into the
2404 runtime process image. We need to remember the offset into the
2405 .rel.bss section we are going to use. */
2406 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2408 htab->srelbss->size += TILEGX_ELF_RELA_BYTES (htab);
2412 return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
2415 /* Allocate space in .plt, .got and associated reloc sections for
2419 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2421 struct bfd_link_info *info;
2422 struct tilegx_elf_link_hash_table *htab;
2423 struct tilegx_elf_link_hash_entry *eh;
2424 struct tilegx_elf_dyn_relocs *p;
2426 if (h->root.type == bfd_link_hash_indirect)
2429 info = (struct bfd_link_info *) inf;
2430 htab = tilegx_elf_hash_table (info);
2431 BFD_ASSERT (htab != NULL);
2433 if (htab->elf.dynamic_sections_created
2434 && h->plt.refcount > 0)
2436 /* Make sure this symbol is output as a dynamic symbol.
2437 Undefined weak syms won't yet be marked as dynamic. */
2438 if (h->dynindx == -1
2439 && !h->forced_local)
2441 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2445 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2447 asection *s = htab->elf.splt;
2449 /* Allocate room for the header and tail. */
2452 s->size = PLT_HEADER_SIZE + PLT_TAIL_SIZE;
2455 h->plt.offset = s->size - PLT_TAIL_SIZE;
2457 /* If this symbol is not defined in a regular file, and we are
2458 not generating a shared library, then set the symbol to this
2459 location in the .plt. This is required to make function
2460 pointers compare as equal between the normal executable and
2461 the shared library. */
2465 h->root.u.def.section = s;
2466 h->root.u.def.value = h->plt.offset;
2469 /* Make room for this entry. */
2470 s->size += PLT_ENTRY_SIZE;
2472 /* We also need to make an entry in the .got.plt section. */
2473 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2475 /* We also need to make an entry in the .rela.plt section. */
2476 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2480 h->plt.offset = (bfd_vma) -1;
2486 h->plt.offset = (bfd_vma) -1;
2490 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2491 requiring no TLS entry. */
2492 if (h->got.refcount > 0
2493 && !htab->disable_le_transition
2496 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2497 h->got.offset = (bfd_vma) -1;
2498 else if (h->got.refcount > 0)
2502 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2504 /* Make sure this symbol is output as a dynamic symbol.
2505 Undefined weak syms won't yet be marked as dynamic. */
2506 if (h->dynindx == -1
2507 && !h->forced_local)
2509 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2514 h->got.offset = s->size;
2515 s->size += TILEGX_ELF_WORD_BYTES (htab);
2516 /* TLS_GD entries need 2 consecutive GOT slots. */
2517 if (tls_type == GOT_TLS_GD)
2518 s->size += TILEGX_ELF_WORD_BYTES (htab);
2519 dyn = htab->elf.dynamic_sections_created;
2520 /* TLS_IE needs one dynamic relocation,
2521 TLS_GD needs two if local symbol and two if global. */
2522 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2523 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2524 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2525 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2528 h->got.offset = (bfd_vma) -1;
2530 eh = (struct tilegx_elf_link_hash_entry *) h;
2531 if (eh->dyn_relocs == NULL)
2534 /* In the shared -Bsymbolic case, discard space allocated for
2535 dynamic pc-relative relocs against symbols which turn out to be
2536 defined in regular objects. For the normal shared case, discard
2537 space for pc-relative relocs that have become local due to symbol
2538 visibility changes. */
2542 if (SYMBOL_CALLS_LOCAL (info, h))
2544 struct tilegx_elf_dyn_relocs **pp;
2546 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2548 p->count -= p->pc_count;
2557 /* Also discard relocs on undefined weak syms with non-default
2559 if (eh->dyn_relocs != NULL
2560 && h->root.type == bfd_link_hash_undefweak)
2562 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2563 eh->dyn_relocs = NULL;
2565 /* Make sure undefined weak symbols are output as a dynamic
2567 else if (h->dynindx == -1
2568 && !h->forced_local)
2570 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2577 /* For the non-shared case, discard space for relocs against
2578 symbols which turn out to need copy relocs or are not
2584 || (htab->elf.dynamic_sections_created
2585 && (h->root.type == bfd_link_hash_undefweak
2586 || h->root.type == bfd_link_hash_undefined))))
2588 /* Make sure this symbol is output as a dynamic symbol.
2589 Undefined weak syms won't yet be marked as dynamic. */
2590 if (h->dynindx == -1
2591 && !h->forced_local)
2593 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2597 /* If that succeeded, we know we'll be keeping all the
2599 if (h->dynindx != -1)
2603 eh->dyn_relocs = NULL;
2608 /* Finally, allocate space. */
2609 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2611 asection *sreloc = elf_section_data (p->sec)->sreloc;
2612 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2618 /* Find any dynamic relocs that apply to read-only sections. */
2621 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2623 struct tilegx_elf_link_hash_entry *eh;
2624 struct tilegx_elf_dyn_relocs *p;
2626 eh = (struct tilegx_elf_link_hash_entry *) h;
2627 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2629 asection *s = p->sec->output_section;
2631 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2633 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2635 info->flags |= DF_TEXTREL;
2637 /* Not an error, just cut short the traversal. */
2644 /* Return true if the dynamic symbol for a given section should be
2645 omitted when creating a shared library. */
2648 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2649 struct bfd_link_info *info,
2652 /* We keep the .got section symbol so that explicit relocations
2653 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2654 can be turned into relocations against the .got symbol. */
2655 if (strcmp (p->name, ".got") == 0)
2658 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2662 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2663 struct bfd_link_info *info)
2665 struct tilegx_elf_link_hash_table *htab;
2670 htab = tilegx_elf_hash_table (info);
2671 BFD_ASSERT (htab != NULL);
2672 dynobj = htab->elf.dynobj;
2673 BFD_ASSERT (dynobj != NULL);
2675 if (elf_hash_table (info)->dynamic_sections_created)
2677 /* Set the contents of the .interp section to the interpreter. */
2678 if (info->executable)
2680 s = bfd_get_linker_section (dynobj, ".interp");
2681 BFD_ASSERT (s != NULL);
2682 s->size = strlen (htab->dynamic_interpreter) + 1;
2683 s->contents = (unsigned char *) htab->dynamic_interpreter;
2687 /* Set up .got offsets for local syms, and space for local dynamic
2689 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2691 bfd_signed_vma *local_got;
2692 bfd_signed_vma *end_local_got;
2693 char *local_tls_type;
2694 bfd_size_type locsymcount;
2695 Elf_Internal_Shdr *symtab_hdr;
2698 if (! is_tilegx_elf (ibfd))
2701 for (s = ibfd->sections; s != NULL; s = s->next)
2703 struct tilegx_elf_dyn_relocs *p;
2705 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2707 if (!bfd_is_abs_section (p->sec)
2708 && bfd_is_abs_section (p->sec->output_section))
2710 /* Input section has been discarded, either because
2711 it is a copy of a linkonce section or due to
2712 linker script /DISCARD/, so we'll be discarding
2715 else if (p->count != 0)
2717 srel = elf_section_data (p->sec)->sreloc;
2718 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2719 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2720 info->flags |= DF_TEXTREL;
2725 local_got = elf_local_got_refcounts (ibfd);
2729 symtab_hdr = &elf_symtab_hdr (ibfd);
2730 locsymcount = symtab_hdr->sh_info;
2731 end_local_got = local_got + locsymcount;
2732 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2734 srel = htab->elf.srelgot;
2735 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2739 *local_got = s->size;
2740 s->size += TILEGX_ELF_WORD_BYTES (htab);
2741 if (*local_tls_type == GOT_TLS_GD)
2742 s->size += TILEGX_ELF_WORD_BYTES (htab);
2744 || *local_tls_type == GOT_TLS_GD
2745 || *local_tls_type == GOT_TLS_IE)
2746 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2749 *local_got = (bfd_vma) -1;
2753 /* Allocate global sym .plt and .got entries, and space for global
2754 sym dynamic relocs. */
2755 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2757 if (elf_hash_table (info)->dynamic_sections_created)
2759 /* If the .got section is more than 0x8000 bytes, we add
2760 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2761 bit relocations have a greater chance of working. */
2762 if (htab->elf.sgot->size >= 0x8000
2763 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2764 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2767 if (htab->elf.sgotplt)
2769 struct elf_link_hash_entry *got;
2770 got = elf_link_hash_lookup (elf_hash_table (info),
2771 "_GLOBAL_OFFSET_TABLE_",
2772 FALSE, FALSE, FALSE);
2774 /* Don't allocate .got.plt section if there are no GOT nor PLT
2775 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2777 || !got->ref_regular_nonweak)
2778 && (htab->elf.sgotplt->size
2779 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2780 && (htab->elf.splt == NULL
2781 || htab->elf.splt->size == 0)
2782 && (htab->elf.sgot == NULL
2783 || (htab->elf.sgot->size
2784 == get_elf_backend_data (output_bfd)->got_header_size)))
2785 htab->elf.sgotplt->size = 0;
2788 /* The check_relocs and adjust_dynamic_symbol entry points have
2789 determined the sizes of the various dynamic sections. Allocate
2791 for (s = dynobj->sections; s != NULL; s = s->next)
2793 if ((s->flags & SEC_LINKER_CREATED) == 0)
2796 if (s == htab->elf.splt
2797 || s == htab->elf.sgot
2798 || s == htab->elf.sgotplt
2799 || s == htab->sdynbss)
2801 /* Strip this section if we don't need it; see the
2804 else if (strncmp (s->name, ".rela", 5) == 0)
2808 /* We use the reloc_count field as a counter if we need
2809 to copy relocs into the output file. */
2815 /* It's not one of our sections. */
2821 /* If we don't need this section, strip it from the
2822 output file. This is mostly to handle .rela.bss and
2823 .rela.plt. We must create both sections in
2824 create_dynamic_sections, because they must be created
2825 before the linker maps input sections to output
2826 sections. The linker does that before
2827 adjust_dynamic_symbol is called, and it is that
2828 function which decides whether anything needs to go
2829 into these sections. */
2830 s->flags |= SEC_EXCLUDE;
2834 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2837 /* Allocate memory for the section contents. Zero the memory
2838 for the benefit of .rela.plt, which has 4 unused entries
2839 at the beginning, and we don't want garbage. */
2840 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2841 if (s->contents == NULL)
2845 if (elf_hash_table (info)->dynamic_sections_created)
2847 /* Add some entries to the .dynamic section. We fill in the
2848 values later, in tilegx_elf_finish_dynamic_sections, but we
2849 must add the entries now so that we get the correct size for
2850 the .dynamic section. The DT_DEBUG entry is filled in by the
2851 dynamic linker and used by the debugger. */
2852 #define add_dynamic_entry(TAG, VAL) \
2853 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2855 if (info->executable)
2857 if (!add_dynamic_entry (DT_DEBUG, 0))
2861 if (htab->elf.srelplt->size != 0)
2863 if (!add_dynamic_entry (DT_PLTGOT, 0)
2864 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2865 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2866 || !add_dynamic_entry (DT_JMPREL, 0))
2870 if (!add_dynamic_entry (DT_RELA, 0)
2871 || !add_dynamic_entry (DT_RELASZ, 0)
2872 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2875 /* If any dynamic relocs apply to a read-only section,
2876 then we need a DT_TEXTREL entry. */
2877 if ((info->flags & DF_TEXTREL) == 0)
2878 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2880 if (info->flags & DF_TEXTREL)
2882 if (!add_dynamic_entry (DT_TEXTREL, 0))
2886 #undef add_dynamic_entry
2891 /* Return the base VMA address which should be subtracted from real addresses
2892 when resolving @dtpoff relocation.
2893 This is PT_TLS segment p_vaddr. */
2896 dtpoff_base (struct bfd_link_info *info)
2898 /* If tls_sec is NULL, we should have signalled an error already. */
2899 if (elf_hash_table (info)->tls_sec == NULL)
2901 return elf_hash_table (info)->tls_sec->vma;
2904 /* Return the relocation value for @tpoff relocation. */
2907 tpoff (struct bfd_link_info *info, bfd_vma address)
2909 struct elf_link_hash_table *htab = elf_hash_table (info);
2911 /* If tls_sec is NULL, we should have signalled an error already. */
2912 if (htab->tls_sec == NULL)
2915 return (address - htab->tls_sec->vma);
2918 /* Copy SIZE bits from FROM to TO at address ADDR. */
2921 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2924 for (i = 0; i < size; i++)
2926 int from_byte = (from + i) / 8;
2927 int from_bit = (from + i) % 8;
2928 int to_byte = (to + i) / 8;
2929 int to_bit = (to + i) % 8;
2930 bfd_byte to_mask = 1 << to_bit;
2931 addr[to_byte] = (addr[to_byte] & ~to_mask)
2932 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2936 /* Replace the MASK bits in ADDR with those in INSN, for the next
2937 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2940 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2941 const bfd_byte *insn)
2944 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2946 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2950 /* Mask to extract the bits corresponding to an instruction in a
2951 specific pipe of a bundle. */
2952 static const bfd_byte insn_mask_X1[] = {
2953 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2956 /* Mask to extract the bits corresponding to an instruction in a
2957 specific pipe of a bundle, minus the destination operand and the
2958 first source operand. */
2959 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2960 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2963 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2964 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2967 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2968 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2970 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2971 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2974 /* Mask to extract the bits corresponding to an instruction in a
2975 specific pipe of a bundle, minus the register operands. */
2976 static const bfd_byte insn_mask_X0_no_operand[] = {
2977 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2980 static const bfd_byte insn_mask_X1_no_operand[] = {
2981 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2984 static const bfd_byte insn_mask_Y0_no_operand[] = {
2985 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2988 static const bfd_byte insn_mask_Y1_no_operand[] = {
2989 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2992 /* Various instructions synthesized to support tls references. */
2994 /* ld r0, r0 in the X1 pipe, used for tls ie. */
2995 static const bfd_byte insn_tls_ie_ld_X1[] = {
2996 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2999 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
3000 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
3001 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
3004 /* add r0, r0, tp in various pipes, used for tls ie. */
3005 static const bfd_byte insn_tls_ie_add_X0X1[] = {
3006 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
3008 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
3009 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
3012 /* addx r0, r0, tp in various pipes, used for tls ie. */
3013 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
3014 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
3016 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
3017 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
3020 /* move r0, r0 in various pipes, used for tls gd. */
3021 static const bfd_byte insn_tls_gd_add_X0X1[] = {
3022 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
3024 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
3025 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
3028 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
3029 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
3031 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
3032 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
3034 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
3035 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
3037 /* Relocate an TILEGX ELF section.
3039 The RELOCATE_SECTION function is called by the new ELF backend linker
3040 to handle the relocations for a section.
3042 The relocs are always passed as Rela structures.
3044 This function is responsible for adjusting the section contents as
3045 necessary, and (if generating a relocatable output file) adjusting
3046 the reloc addend as necessary.
3048 This function does not have to worry about setting the reloc
3049 address or the reloc symbol index.
3051 LOCAL_SYMS is a pointer to the swapped in local symbols.
3053 LOCAL_SECTIONS is an array giving the section in the input file
3054 corresponding to the st_shndx field of each local symbol.
3056 The global hash table entry for the global symbols can be found
3057 via elf_sym_hashes (input_bfd).
3059 When generating relocatable output, this function must handle
3060 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
3061 going to be the section symbol corresponding to the output
3062 section, which means that the addend must be adjusted
3066 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3067 bfd *input_bfd, asection *input_section,
3068 bfd_byte *contents, Elf_Internal_Rela *relocs,
3069 Elf_Internal_Sym *local_syms,
3070 asection **local_sections)
3072 struct tilegx_elf_link_hash_table *htab;
3073 Elf_Internal_Shdr *symtab_hdr;
3074 struct elf_link_hash_entry **sym_hashes;
3075 bfd_vma *local_got_offsets;
3078 Elf_Internal_Rela *rel;
3079 Elf_Internal_Rela *relend;
3082 htab = tilegx_elf_hash_table (info);
3083 BFD_ASSERT (htab != NULL);
3084 symtab_hdr = &elf_symtab_hdr (input_bfd);
3085 sym_hashes = elf_sym_hashes (input_bfd);
3086 local_got_offsets = elf_local_got_offsets (input_bfd);
3088 if (elf_hash_table (info)->hgot == NULL)
3091 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3093 sreloc = elf_section_data (input_section)->sreloc;
3096 num_relocs = input_section->reloc_count;
3097 relend = relocs + num_relocs;
3098 for (; rel < relend; rel++)
3100 int r_type, tls_type;
3101 bfd_boolean is_tls_iele, is_tls_le;
3102 reloc_howto_type *howto;
3103 unsigned long r_symndx;
3104 struct elf_link_hash_entry *h;
3105 Elf_Internal_Sym *sym;
3106 tilegx_create_func create_func;
3109 bfd_reloc_status_type r;
3112 bfd_boolean is_plt = FALSE;
3114 bfd_boolean unresolved_reloc;
3116 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
3117 if (r_type == R_TILEGX_GNU_VTINHERIT
3118 || r_type == R_TILEGX_GNU_VTENTRY)
3121 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3123 /* Not clear if we need to check here, but just be paranoid. */
3124 (*_bfd_error_handler)
3125 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
3126 input_bfd, r_type, input_section);
3127 bfd_set_error (bfd_error_bad_value);
3131 howto = tilegx_elf_howto_table + r_type;
3133 /* This is a final link. */
3134 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3138 unresolved_reloc = FALSE;
3139 if (r_symndx < symtab_hdr->sh_info)
3141 sym = local_syms + r_symndx;
3142 sec = local_sections[r_symndx];
3143 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3149 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3150 r_symndx, symtab_hdr, sym_hashes,
3152 unresolved_reloc, warned);
3155 /* To avoid generating warning messages about truncated
3156 relocations, set the relocation's address to be the same as
3157 the start of this section. */
3158 if (input_section->output_section != NULL)
3159 relocation = input_section->output_section->vma;
3165 if (sec != NULL && discarded_section (sec))
3166 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3167 rel, 1, relend, howto, 0, contents);
3169 if (info->relocatable)
3173 name = h->root.root.string;
3176 name = (bfd_elf_string_from_elf_section
3177 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3178 if (name == NULL || *name == '\0')
3179 name = bfd_section_name (input_bfd, sec);
3184 case R_TILEGX_TLS_GD_CALL:
3185 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3186 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3187 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3188 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3189 case R_TILEGX_IMM8_X0_TLS_ADD:
3190 case R_TILEGX_IMM8_Y0_TLS_ADD:
3191 case R_TILEGX_IMM8_X1_TLS_ADD:
3192 case R_TILEGX_IMM8_Y1_TLS_ADD:
3193 tls_type = GOT_UNKNOWN;
3194 if (h == NULL && local_got_offsets)
3196 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3198 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3200 is_tls_iele = (! info->shared || tls_type == GOT_TLS_IE);
3201 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3203 && (h == NULL || h->dynindx == -1));
3205 if (r_type == R_TILEGX_TLS_GD_CALL)
3210 tilegx_replace_insn (contents + rel->r_offset,
3211 insn_mask_X1, insn_move_X0X1);
3214 else if (is_tls_iele)
3217 if (ABI_64_P (output_bfd))
3218 tilegx_replace_insn (contents + rel->r_offset,
3219 insn_mask_X1, insn_tls_ie_ld_X1);
3221 tilegx_replace_insn (contents + rel->r_offset,
3222 insn_mask_X1, insn_tls_ie_ld4s_X1);
3227 h = (struct elf_link_hash_entry *)
3228 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3230 BFD_ASSERT (h != NULL);
3231 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3232 howto = tilegx_elf_howto_table + r_type;
3234 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3235 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3236 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3237 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3239 bfd_boolean is_pipe0 =
3240 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3241 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3242 bfd_boolean is_X0X1 =
3243 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3244 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3245 int dest_begin = is_pipe0 ? 0 : 31;
3247 const bfd_byte *insn;
3248 const bfd_byte *mask = NULL;
3252 /* 1. copy dest operand into the first source operand.
3253 2. change the opcode to "move". */
3254 src_begin = is_pipe0 ? 6 : 37;
3255 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3259 case R_TILEGX_IMM8_X0_TLS_ADD:
3260 mask = insn_mask_X0_no_dest_no_srca;
3262 case R_TILEGX_IMM8_X1_TLS_ADD:
3263 mask = insn_mask_X1_no_dest_no_srca;
3265 case R_TILEGX_IMM8_Y0_TLS_ADD:
3266 mask = insn_mask_Y0_no_dest_no_srca;
3268 case R_TILEGX_IMM8_Y1_TLS_ADD:
3269 mask = insn_mask_Y1_no_dest_no_srca;
3275 /* 1. copy dest operand into the second source operand.
3276 2. change the opcode to "add". */
3277 src_begin = is_pipe0 ? 12 : 43;
3278 if (ABI_64_P (output_bfd))
3279 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3281 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3285 case R_TILEGX_IMM8_X0_TLS_ADD:
3286 mask = insn_mask_X0_no_operand;
3288 case R_TILEGX_IMM8_X1_TLS_ADD:
3289 mask = insn_mask_X1_no_operand;
3291 case R_TILEGX_IMM8_Y0_TLS_ADD:
3292 mask = insn_mask_Y0_no_operand;
3294 case R_TILEGX_IMM8_Y1_TLS_ADD:
3295 mask = insn_mask_Y1_no_operand;
3300 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3302 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3308 const bfd_byte *mask = NULL;
3309 const bfd_byte *add_insn = NULL;
3310 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3314 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3315 add_insn = is_tls_iele
3316 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3317 : insn_tls_gd_add_X0X1;
3318 mask = insn_mask_X0_no_dest_no_srca;
3320 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3321 add_insn = is_tls_iele
3322 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3323 : insn_tls_gd_add_X0X1;
3324 mask = insn_mask_X1_no_dest_no_srca;
3326 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3327 add_insn = is_tls_iele
3328 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3329 : insn_tls_gd_add_Y0Y1;
3330 mask = insn_mask_Y0_no_dest_no_srca;
3332 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3333 add_insn = is_tls_iele
3334 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3335 : insn_tls_gd_add_Y0Y1;
3336 mask = insn_mask_Y1_no_dest_no_srca;
3340 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3345 case R_TILEGX_TLS_IE_LOAD:
3346 if (!input_section->sec_flg0
3348 && (h == NULL || h->dynindx == -1))
3351 tilegx_replace_insn (contents + rel->r_offset,
3352 insn_mask_X1_no_dest_no_srca,
3358 if (ABI_64_P (output_bfd))
3359 tilegx_replace_insn (contents + rel->r_offset,
3360 insn_mask_X1_no_dest_no_srca,
3363 tilegx_replace_insn (contents + rel->r_offset,
3364 insn_mask_X1_no_dest_no_srca,
3365 insn_tls_ie_ld4s_X1);
3375 case R_TILEGX_IMM16_X0_HW0_GOT:
3376 case R_TILEGX_IMM16_X1_HW0_GOT:
3377 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3378 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3379 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3380 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3381 /* Relocation is to the entry for this symbol in the global
3383 if (htab->elf.sgot == NULL)
3390 off = h->got.offset;
3391 BFD_ASSERT (off != (bfd_vma) -1);
3392 dyn = elf_hash_table (info)->dynamic_sections_created;
3394 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3396 && SYMBOL_REFERENCES_LOCAL (info, h)))
3398 /* This is actually a static link, or it is a
3399 -Bsymbolic link and the symbol is defined
3400 locally, or the symbol was forced to be local
3401 because of a version file. We must initialize
3402 this entry in the global offset table. Since the
3403 offset must always be a multiple
3404 of 8 for 64-bit, we use the least significant bit
3405 to record whether we have initialized it already.
3407 When doing a dynamic link, we create a .rela.got
3408 relocation entry to initialize the value. This
3409 is done in the finish_dynamic_symbol routine. */
3414 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3415 htab->elf.sgot->contents + off);
3420 unresolved_reloc = FALSE;
3424 BFD_ASSERT (local_got_offsets != NULL
3425 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3427 off = local_got_offsets[r_symndx];
3429 /* The offset must always be a multiple of 8 on 64-bit.
3430 We use the least significant bit to record
3431 whether we have already processed this entry. */
3439 Elf_Internal_Rela outrel;
3441 /* We need to generate a R_TILEGX_RELATIVE reloc
3442 for the dynamic linker. */
3443 s = htab->elf.srelgot;
3444 BFD_ASSERT (s != NULL);
3446 outrel.r_offset = (htab->elf.sgot->output_section->vma
3447 + htab->elf.sgot->output_offset
3450 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3451 outrel.r_addend = relocation;
3453 tilegx_elf_append_rela (output_bfd, s, &outrel);
3456 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3457 htab->elf.sgot->contents + off);
3458 local_got_offsets[r_symndx] |= 1;
3461 relocation = off - got_base;
3464 case R_TILEGX_JUMPOFF_X1_PLT:
3465 /* Relocation is to the entry for this symbol in the
3466 procedure linkage table. */
3467 BFD_ASSERT (h != NULL);
3469 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3471 /* We didn't make a PLT entry for this symbol. This
3472 happens when statically linking PIC code, or when
3473 using -Bsymbolic. */
3477 relocation = (htab->elf.splt->output_section->vma
3478 + htab->elf.splt->output_offset
3480 unresolved_reloc = FALSE;
3483 case R_TILEGX_64_PCREL:
3484 case R_TILEGX_32_PCREL:
3485 case R_TILEGX_16_PCREL:
3486 case R_TILEGX_8_PCREL:
3487 case R_TILEGX_IMM16_X0_HW0_PCREL:
3488 case R_TILEGX_IMM16_X1_HW0_PCREL:
3489 case R_TILEGX_IMM16_X0_HW1_PCREL:
3490 case R_TILEGX_IMM16_X1_HW1_PCREL:
3491 case R_TILEGX_IMM16_X0_HW2_PCREL:
3492 case R_TILEGX_IMM16_X1_HW2_PCREL:
3493 case R_TILEGX_IMM16_X0_HW3_PCREL:
3494 case R_TILEGX_IMM16_X1_HW3_PCREL:
3495 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3496 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3497 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3498 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3499 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3500 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3502 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3513 case R_TILEGX_HW0_LAST:
3514 case R_TILEGX_HW1_LAST:
3515 case R_TILEGX_HW2_LAST:
3517 case R_TILEGX_GLOB_DAT:
3518 case R_TILEGX_JMP_SLOT:
3519 case R_TILEGX_RELATIVE:
3520 case R_TILEGX_BROFF_X1:
3521 case R_TILEGX_JUMPOFF_X1:
3522 case R_TILEGX_IMM8_X0:
3523 case R_TILEGX_IMM8_Y0:
3524 case R_TILEGX_IMM8_X1:
3525 case R_TILEGX_IMM8_Y1:
3526 case R_TILEGX_DEST_IMM8_X1:
3527 case R_TILEGX_MT_IMM14_X1:
3528 case R_TILEGX_MF_IMM14_X1:
3529 case R_TILEGX_MMSTART_X0:
3530 case R_TILEGX_MMEND_X0:
3531 case R_TILEGX_SHAMT_X0:
3532 case R_TILEGX_SHAMT_X1:
3533 case R_TILEGX_SHAMT_Y0:
3534 case R_TILEGX_SHAMT_Y1:
3535 case R_TILEGX_IMM16_X0_HW0:
3536 case R_TILEGX_IMM16_X1_HW0:
3537 case R_TILEGX_IMM16_X0_HW1:
3538 case R_TILEGX_IMM16_X1_HW1:
3539 case R_TILEGX_IMM16_X0_HW2:
3540 case R_TILEGX_IMM16_X1_HW2:
3541 case R_TILEGX_IMM16_X0_HW3:
3542 case R_TILEGX_IMM16_X1_HW3:
3543 case R_TILEGX_IMM16_X0_HW0_LAST:
3544 case R_TILEGX_IMM16_X1_HW0_LAST:
3545 case R_TILEGX_IMM16_X0_HW1_LAST:
3546 case R_TILEGX_IMM16_X1_HW1_LAST:
3547 case R_TILEGX_IMM16_X0_HW2_LAST:
3548 case R_TILEGX_IMM16_X1_HW2_LAST:
3549 if ((input_section->flags & SEC_ALLOC) == 0)
3554 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3555 || h->root.type != bfd_link_hash_undefweak)
3556 && (! howto->pc_relative
3557 || !SYMBOL_CALLS_LOCAL (info, h)))
3564 || h->root.type == bfd_link_hash_undefweak
3565 || h->root.type == bfd_link_hash_undefined)))
3567 Elf_Internal_Rela outrel;
3568 bfd_boolean skip, relocate = FALSE;
3570 /* When generating a shared object, these relocations
3571 are copied into the output file to be resolved at run
3574 BFD_ASSERT (sreloc != NULL);
3579 _bfd_elf_section_offset (output_bfd, info, input_section,
3581 if (outrel.r_offset == (bfd_vma) -1)
3583 else if (outrel.r_offset == (bfd_vma) -2)
3584 skip = TRUE, relocate = TRUE;
3585 outrel.r_offset += (input_section->output_section->vma
3586 + input_section->output_offset);
3590 case R_TILEGX_64_PCREL:
3591 case R_TILEGX_32_PCREL:
3592 case R_TILEGX_16_PCREL:
3593 case R_TILEGX_8_PCREL:
3594 /* If the symbol is not dynamic, we should not keep
3595 a dynamic relocation. But an .rela.* slot has been
3596 allocated for it, output R_TILEGX_NONE.
3597 FIXME: Add code tracking needed dynamic relocs as
3599 if (h->dynindx == -1)
3600 skip = TRUE, relocate = TRUE;
3605 memset (&outrel, 0, sizeof outrel);
3606 /* h->dynindx may be -1 if the symbol was marked to
3608 else if (h != NULL &&
3612 || !SYMBOLIC_BIND (info, h)
3613 || !h->def_regular))
3615 BFD_ASSERT (h->dynindx != -1);
3616 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3617 outrel.r_addend = rel->r_addend;
3621 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3623 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3625 outrel.r_addend = relocation + rel->r_addend;
3631 outrel.r_addend = relocation + rel->r_addend;
3634 sec = htab->elf.splt;
3636 if (bfd_is_abs_section (sec))
3638 else if (sec == NULL || sec->owner == NULL)
3640 bfd_set_error (bfd_error_bad_value);
3647 /* We are turning this relocation into one
3648 against a section symbol. It would be
3649 proper to subtract the symbol's value,
3650 osec->vma, from the emitted reloc addend,
3651 but ld.so expects buggy relocs. */
3652 osec = sec->output_section;
3653 indx = elf_section_data (osec)->dynindx;
3657 osec = htab->elf.text_index_section;
3658 indx = elf_section_data (osec)->dynindx;
3661 /* FIXME: we really should be able to link non-pic
3662 shared libraries. */
3666 (*_bfd_error_handler)
3667 (_("%B: probably compiled without -fPIC?"),
3669 bfd_set_error (bfd_error_bad_value);
3674 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3679 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3681 /* This reloc will be computed at runtime, so there's no
3682 need to do anything now. */
3688 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3689 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3690 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3691 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3692 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3693 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3696 Elf_Internal_Rela outrel;
3699 BFD_ASSERT (sreloc != NULL);
3702 _bfd_elf_section_offset (output_bfd, info, input_section,
3704 if (outrel.r_offset == (bfd_vma) -1)
3706 else if (outrel.r_offset == (bfd_vma) -2)
3708 outrel.r_offset += (input_section->output_section->vma
3709 + input_section->output_offset);
3711 memset (&outrel, 0, sizeof outrel);
3714 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3715 outrel.r_addend = relocation - dtpoff_base (info)
3719 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3722 relocation = tpoff (info, relocation);
3725 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3726 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3727 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3728 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3729 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3730 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3731 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3732 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3733 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3734 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3735 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3736 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3737 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3738 input_section->sec_flg0);
3739 tls_type = GOT_UNKNOWN;
3740 if (h == NULL && local_got_offsets)
3742 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3745 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3746 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3747 r_type = (!input_section->sec_flg0
3748 ? tilegx_tls_translate_to_le (r_type)
3749 : tilegx_tls_translate_to_ie (r_type));
3752 if (tls_type == GOT_TLS_IE)
3753 r_type = tilegx_tls_translate_to_ie (r_type);
3755 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3756 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3757 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3758 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3759 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3760 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3762 relocation = tpoff (info, relocation);
3768 off = h->got.offset;
3773 BFD_ASSERT (local_got_offsets != NULL);
3774 off = local_got_offsets[r_symndx];
3775 local_got_offsets[r_symndx] |= 1;
3778 if (htab->elf.sgot == NULL)
3785 Elf_Internal_Rela outrel;
3787 bfd_boolean need_relocs = FALSE;
3789 if (htab->elf.srelgot == NULL)
3795 dyn = htab->elf.dynamic_sections_created;
3797 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3799 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3805 /* The GOT entries have not been initialized yet. Do it
3806 now, and emit any relocations. */
3807 if ((info->shared || indx != 0)
3809 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3810 || h->root.type != bfd_link_hash_undefweak))
3815 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3816 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3817 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3818 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3819 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3820 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3822 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3823 htab->elf.sgot->contents + off);
3824 outrel.r_offset = (htab->elf.sgot->output_section->vma
3825 + htab->elf.sgot->output_offset + off);
3826 outrel.r_addend = 0;
3828 outrel.r_addend = relocation - dtpoff_base (info);
3829 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3830 TILEGX_ELF_TPOFF_RELOC (htab));
3831 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3833 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3834 tpoff (info, relocation),
3835 htab->elf.sgot->contents + off);
3839 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3840 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3841 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3842 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3843 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3844 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3846 outrel.r_offset = (htab->elf.sgot->output_section->vma
3847 + htab->elf.sgot->output_offset + off);
3848 outrel.r_addend = 0;
3849 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3850 TILEGX_ELF_DTPMOD_RELOC (htab));
3851 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3852 htab->elf.sgot->contents + off);
3853 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3856 BFD_ASSERT (! unresolved_reloc);
3857 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3858 relocation - dtpoff_base (info),
3859 (htab->elf.sgot->contents + off +
3860 TILEGX_ELF_WORD_BYTES (htab)));
3864 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3865 (htab->elf.sgot->contents + off +
3866 TILEGX_ELF_WORD_BYTES (htab)));
3867 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3868 TILEGX_ELF_DTPOFF_RELOC (htab));
3869 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3870 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3875 /* If we are not emitting relocations for a
3876 general dynamic reference, then we must be in a
3877 static link or an executable link with the
3878 symbol binding locally. Mark it as belonging
3879 to module 1, the executable. */
3880 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3881 htab->elf.sgot->contents + off );
3882 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3883 relocation - dtpoff_base (info),
3884 htab->elf.sgot->contents + off +
3885 TILEGX_ELF_WORD_BYTES (htab));
3891 if (off >= (bfd_vma) -2)
3894 relocation = off - got_base;
3895 unresolved_reloc = FALSE;
3896 howto = tilegx_elf_howto_table + r_type;
3903 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3904 because such sections are not SEC_ALLOC and thus ld.so will
3905 not process them. */
3906 if (unresolved_reloc
3907 && !((input_section->flags & SEC_DEBUGGING) != 0
3909 && _bfd_elf_section_offset (output_bfd, info, input_section,
3910 rel->r_offset) != (bfd_vma) -1)
3911 (*_bfd_error_handler)
3912 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3915 (long) rel->r_offset,
3917 h->root.root.string);
3919 r = bfd_reloc_continue;
3921 /* Get the operand creation function, if any. */
3922 create_func = reloc_to_create_func[r_type];
3923 if (create_func == NULL)
3925 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3926 contents, rel->r_offset,
3927 relocation, rel->r_addend);
3931 if (howto->pc_relative)
3934 input_section->output_section->vma + input_section->output_offset;
3935 if (howto->pcrel_offset)
3936 relocation -= rel->r_offset;
3941 /* Add the relocation addend if any to the final target value */
3942 relocation += rel->r_addend;
3944 /* Do basic range checking */
3945 r = bfd_check_overflow (howto->complain_on_overflow,
3948 TILEGX_ELF_WORD_BYTES (htab) * 8,
3952 * Write the relocated value out into the raw section data.
3953 * Don't put a relocation out in the .rela section.
3955 tilegx_bundle_bits mask = create_func(-1);
3956 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3958 /* Only touch bytes while the mask is not 0, so we
3959 don't write to out of bounds memory if this is actually
3960 a 16-bit switch instruction. */
3961 for (data = contents + rel->r_offset; mask != 0; data++)
3963 bfd_byte byte_mask = (bfd_byte)mask;
3964 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3970 if (r != bfd_reloc_ok)
3972 const char *msg = NULL;
3976 case bfd_reloc_overflow:
3977 r = info->callbacks->reloc_overflow
3978 (info, (h ? &h->root : NULL), name, howto->name,
3979 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3982 case bfd_reloc_undefined:
3983 r = info->callbacks->undefined_symbol
3984 (info, name, input_bfd, input_section, rel->r_offset,
3988 case bfd_reloc_outofrange:
3989 msg = _("internal error: out of range error");
3992 case bfd_reloc_notsupported:
3993 msg = _("internal error: unsupported relocation error");
3996 case bfd_reloc_dangerous:
3997 msg = _("internal error: dangerous relocation");
4001 msg = _("internal error: unknown error");
4006 r = info->callbacks->warning
4007 (info, msg, name, input_bfd, input_section, rel->r_offset);
4017 /* Finish up dynamic symbol handling. We set the contents of various
4018 dynamic sections here. */
4021 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
4022 struct bfd_link_info *info,
4023 struct elf_link_hash_entry *h,
4024 Elf_Internal_Sym *sym)
4026 struct tilegx_elf_link_hash_table *htab;
4028 htab = tilegx_elf_hash_table (info);
4029 BFD_ASSERT (htab != NULL);
4031 if (h->plt.offset != (bfd_vma) -1)
4036 Elf_Internal_Rela rela;
4039 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
4044 /* This symbol has an entry in the PLT. Set it up. */
4046 BFD_ASSERT (h->dynindx != -1);
4048 splt = htab->elf.splt;
4049 srela = htab->elf.srelplt;
4050 sgotplt = htab->elf.sgotplt;
4052 if (splt == NULL || srela == NULL)
4055 /* Fill in the entry in the procedure linkage table. */
4056 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
4057 h->plt.offset, &r_offset);
4059 /* Fill in the entry in the global offset table, which initially points
4060 to the beginning of the plt. */
4061 TILEGX_ELF_PUT_WORD (htab, output_bfd,
4062 splt->output_section->vma + splt->output_offset,
4063 sgotplt->contents + r_offset);
4065 /* Fill in the entry in the .rela.plt section. */
4066 rela.r_offset = (sgotplt->output_section->vma
4067 + sgotplt->output_offset
4070 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
4072 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
4073 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4075 if (!h->def_regular)
4077 /* Mark the symbol as undefined, rather than as defined in
4078 the .plt section. Leave the value alone. */
4079 sym->st_shndx = SHN_UNDEF;
4080 /* If the symbol is weak, we do need to clear the value.
4081 Otherwise, the PLT entry would provide a definition for
4082 the symbol even if the symbol wasn't defined anywhere,
4083 and so the symbol would never be NULL. */
4084 if (!h->ref_regular_nonweak)
4089 if (h->got.offset != (bfd_vma) -1
4090 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4091 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4095 Elf_Internal_Rela rela;
4097 /* This symbol has an entry in the GOT. Set it up. */
4099 sgot = htab->elf.sgot;
4100 srela = htab->elf.srelgot;
4101 BFD_ASSERT (sgot != NULL && srela != NULL);
4103 rela.r_offset = (sgot->output_section->vma
4104 + sgot->output_offset
4105 + (h->got.offset &~ (bfd_vma) 1));
4107 /* If this is a -Bsymbolic link, and the symbol is defined
4108 locally, we just want to emit a RELATIVE reloc. Likewise if
4109 the symbol was forced to be local because of a version file.
4110 The entry in the global offset table will already have been
4111 initialized in the relocate_section function. */
4113 && (info->symbolic || h->dynindx == -1)
4116 asection *sec = h->root.u.def.section;
4117 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4118 rela.r_addend = (h->root.u.def.value
4119 + sec->output_section->vma
4120 + sec->output_offset);
4124 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4128 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4129 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4130 tilegx_elf_append_rela (output_bfd, srela, &rela);
4136 Elf_Internal_Rela rela;
4138 /* This symbols needs a copy reloc. Set it up. */
4139 BFD_ASSERT (h->dynindx != -1);
4142 BFD_ASSERT (s != NULL);
4144 rela.r_offset = (h->root.u.def.value
4145 + h->root.u.def.section->output_section->vma
4146 + h->root.u.def.section->output_offset);
4147 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4149 tilegx_elf_append_rela (output_bfd, s, &rela);
4152 /* Mark some specially defined symbols as absolute. */
4153 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4154 || (h == htab->elf.hgot || h == htab->elf.hplt))
4155 sym->st_shndx = SHN_ABS;
4160 /* Finish up the dynamic sections. */
4163 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4164 bfd *dynobj, asection *sdyn,
4165 asection *splt ATTRIBUTE_UNUSED)
4167 struct tilegx_elf_link_hash_table *htab;
4168 const struct elf_backend_data *bed;
4169 bfd_byte *dyncon, *dynconend;
4172 htab = tilegx_elf_hash_table (info);
4173 BFD_ASSERT (htab != NULL);
4174 bed = get_elf_backend_data (output_bfd);
4175 dynsize = bed->s->sizeof_dyn;
4176 dynconend = sdyn->contents + sdyn->size;
4178 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4180 Elf_Internal_Dyn dyn;
4183 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4188 s = htab->elf.sgotplt;
4189 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4192 s = htab->elf.srelplt;
4193 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4196 s = htab->elf.srelplt;
4197 dyn.d_un.d_val = s->size;
4203 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4209 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4210 struct bfd_link_info *info)
4214 struct tilegx_elf_link_hash_table *htab;
4216 htab = tilegx_elf_hash_table (info);
4217 BFD_ASSERT (htab != NULL);
4218 dynobj = htab->elf.dynobj;
4220 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4222 if (elf_hash_table (info)->dynamic_sections_created)
4227 splt = htab->elf.splt;
4228 BFD_ASSERT (splt != NULL && sdyn != NULL);
4230 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4235 /* Fill in the head and tail entries in the procedure linkage table. */
4238 memcpy (splt->contents,
4239 ABI_64_P (output_bfd) ?
4240 tilegx64_plt0_entry : tilegx32_plt0_entry,
4243 memcpy (splt->contents + splt->size - PLT_TAIL_SIZE,
4244 ABI_64_P (output_bfd) ?
4245 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4249 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4253 if (htab->elf.sgotplt)
4255 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4257 (*_bfd_error_handler)
4258 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4262 if (htab->elf.sgotplt->size > 0)
4264 /* Write the first two entries in .got.plt, needed for the dynamic
4266 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4267 htab->elf.sgotplt->contents);
4268 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4269 htab->elf.sgotplt->contents
4270 + GOT_ENTRY_SIZE (htab));
4273 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4274 GOT_ENTRY_SIZE (htab);
4279 if (htab->elf.sgot->size > 0)
4281 /* Set the first entry in the global offset table to the address of
4282 the dynamic section. */
4283 bfd_vma val = (sdyn ?
4284 sdyn->output_section->vma + sdyn->output_offset :
4286 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4287 htab->elf.sgot->contents);
4290 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4291 GOT_ENTRY_SIZE (htab);
4299 /* Return address for Ith PLT stub in section PLT, for relocation REL
4300 or (bfd_vma) -1 if it should not be included. */
4303 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4304 const arelent *rel ATTRIBUTE_UNUSED)
4306 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4309 enum elf_reloc_type_class
4310 tilegx_reloc_type_class (const Elf_Internal_Rela *rela)
4312 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4314 case R_TILEGX_RELATIVE:
4315 return reloc_class_relative;
4316 case R_TILEGX_JMP_SLOT:
4317 return reloc_class_plt;
4319 return reloc_class_copy;
4321 return reloc_class_normal;
4326 tilegx_additional_program_headers (bfd *abfd,
4327 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4329 /* Each .intrpt section specified by the user adds another PT_LOAD
4330 header since the sections are discontiguous. */
4331 static const char intrpt_sections[4][9] =
4333 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4338 for (i = 0; i < 4; i++)
4340 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4341 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4345 /* Add four "padding" headers in to leave room in case a custom linker
4346 script does something fancy. Otherwise ld complains that it ran
4347 out of program headers and refuses to link. */
4355 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4357 const char *targ1 = bfd_get_target (ibfd);
4358 const char *targ2 = bfd_get_target (obfd);
4360 if (strcmp (targ1, targ2) != 0)
4362 (*_bfd_error_handler)
4363 (_("%B: Cannot link together %s and %s objects."),
4364 ibfd, targ1, targ2);
4365 bfd_set_error (bfd_error_bad_value);