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tilepro: Check bfd_link_executable for TLS check
[deliverable/binutils-gdb.git] / bfd / elfxx-tilegx.c
CommitLineData
aa137e4d 1/* TILE-Gx-specific support for ELF.
2571583a 2 Copyright (C) 2011-2017 Free Software Foundation, Inc.
aa137e4d
NC		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
aa137e4d 21#include "sysdep.h"
691bf19c 22#include "bfd.h"
aa137e4d
NC		 23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/tilegx.h"
26#include "opcode/tilegx.h"
27#include "libiberty.h"
28#include "elfxx-tilegx.h"
29
30#define ABI_64_P(abfd) \
31 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
32
33#define TILEGX_ELF_WORD_BYTES(htab) \
34 ((htab)->bytes_per_word)
35
36/* The size of an external RELA relocation. */
37#define TILEGX_ELF_RELA_BYTES(htab) \
38 ((htab)->bytes_per_rela)
39
40/* Both 32-bit and 64-bit tilegx encode this in an identical manner,
41 so just take advantage of that. */
42#define TILEGX_ELF_R_TYPE(r_info) \
43 ((r_info) & 0xFF)
44
45#define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \
46 ((htab)->r_info (in_rel, index, type))
47
48#define TILEGX_ELF_R_SYMNDX(htab, r_info) \
49 ((htab)->r_symndx(r_info))
50
51#define TILEGX_ELF_DTPOFF_RELOC(htab) \
52 ((htab)->dtpoff_reloc)
53
54#define TILEGX_ELF_DTPMOD_RELOC(htab) \
55 ((htab)->dtpmod_reloc)
56
57#define TILEGX_ELF_TPOFF_RELOC(htab) \
58 ((htab)->tpoff_reloc)
59
60#define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \
61 ((htab)->put_word (bfd, val, ptr))
62
63/* The name of the dynamic interpreter. This is put in the .interp
64 section. */
65
66#define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1"
67#define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1"
68
69
70static reloc_howto_type tilegx_elf_howto_table [] =
71{
72 /* This reloc does nothing. */
73 HOWTO (R_TILEGX_NONE, /* type */
74 0, /* rightshift */
6346d5ca
AM		 75 3, /* size (0 = byte, 1 = short, 2 = long) */
76 0, /* bitsize */
aa137e4d
NC		 77 FALSE, /* pc_relative */
78 0, /* bitpos */
6346d5ca 79 complain_overflow_dont, /* complain_on_overflow */
aa137e4d
NC		 80 bfd_elf_generic_reloc, /* special_function */
81 "R_TILEGX_NONE", /* name */
82 FALSE, /* partial_inplace */
83 0, /* src_mask */
84 0, /* dst_mask */
85 FALSE), /* pcrel_offset */
86#ifdef BFD64
87 /* A 64 bit absolute relocation. */
88 HOWTO (R_TILEGX_64, /* type */
89 0, /* rightshift */
90 4, /* size (0 = byte, 1 = short, 2 = long) */
91 64, /* bitsize */
92 FALSE, /* pc_relative */
93 0, /* bitpos */
94 complain_overflow_dont, /* complain_on_overflow */
95 bfd_elf_generic_reloc, /* special_function */
96 "R_TILEGX_64", /* name */
97 FALSE, /* partial_inplace */
98 0, /* src_mask */
99 0xffffffffffffffffULL, /* dst_mask */
100 FALSE), /* pcrel_offset */
101#endif
102 /* A 32 bit absolute relocation. */
103 HOWTO (R_TILEGX_32, /* type */
104 0, /* rightshift */
105 2, /* size (0 = byte, 1 = short, 2 = long) */
106 32, /* bitsize */
107 FALSE, /* pc_relative */
108 0, /* bitpos */
109 complain_overflow_dont, /* complain_on_overflow */
110 bfd_elf_generic_reloc, /* special_function */
111 "R_TILEGX_32", /* name */
112 FALSE, /* partial_inplace */
113 0, /* src_mask */
114 0xffffffff, /* dst_mask */
115 FALSE), /* pcrel_offset */
116
117 /* A 16 bit absolute relocation. */
118 HOWTO (R_TILEGX_16, /* type */
119 0, /* rightshift */
120 1, /* size (0 = byte, 1 = short, 2 = long) */
121 16, /* bitsize */
122 FALSE, /* pc_relative */
123 0, /* bitpos */
124 complain_overflow_bitfield, /* complain_on_overflow */
125 bfd_elf_generic_reloc, /* special_function */
126 "R_TILEGX_16", /* name */
127 FALSE, /* partial_inplace */
128 0, /* src_mask */
129 0xffff, /* dst_mask */
130 FALSE), /* pcrel_offset */
131
132 /* An 8 bit absolute relocation. */
133 HOWTO (R_TILEGX_8, /* type */
134 0, /* rightshift */
135 0, /* size (0 = byte, 1 = short, 2 = long) */
136 8, /* bitsize */
137 FALSE, /* pc_relative */
138 0, /* bitpos */
139 complain_overflow_unsigned, /* complain_on_overflow */
140 bfd_elf_generic_reloc, /* special_function */
141 "R_TILEGX_8", /* name */
142 FALSE, /* partial_inplace */
143 0, /* src_mask */
144 0xff, /* dst_mask */
145 FALSE), /* pcrel_offset */
146#ifdef BFD64
147 /* A 64 bit pc-relative relocation. */
148 HOWTO (R_TILEGX_64_PCREL,/* type */
149 0, /* rightshift */
150 4, /* size (0 = byte, 1 = short, 2 = long) */
151 64, /* bitsize */
152 TRUE, /* pc_relative */
153 0, /* bitpos */
154 complain_overflow_dont, /* complain_on_overflow */
155 bfd_elf_generic_reloc, /* special_function */
156 "R_TILEGX_32_PCREL", /* name */
157 FALSE, /* partial_inplace */
158 0, /* src_mask */
159 0xffffffffffffffffULL, /* dst_mask */
160 TRUE), /* pcrel_offset */
161#endif
162 /* A 32 bit pc-relative relocation. */
163 HOWTO (R_TILEGX_32_PCREL,/* type */
164 0, /* rightshift */
165 2, /* size (0 = byte, 1 = short, 2 = long) */
166 32, /* bitsize */
167 TRUE, /* pc_relative */
168 0, /* bitpos */
169 complain_overflow_dont, /* complain_on_overflow */
170 bfd_elf_generic_reloc, /* special_function */
171 "R_TILEGX_32_PCREL", /* name */
172 FALSE, /* partial_inplace */
173 0, /* src_mask */
174 0xffffffff, /* dst_mask */
175 TRUE), /* pcrel_offset */
176
177 /* A 16 bit pc-relative relocation. */
178 HOWTO (R_TILEGX_16_PCREL,/* type */
179 0, /* rightshift */
180 1, /* size (0 = byte, 1 = short, 2 = long) */
181 16, /* bitsize */
182 TRUE, /* pc_relative */
183 0, /* bitpos */
184 complain_overflow_signed, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_TILEGX_16_PCREL", /* name */
187 FALSE, /* partial_inplace */
188 0, /* src_mask */
189 0xffff, /* dst_mask */
190 TRUE), /* pcrel_offset */
191
192 /* An 8 bit pc-relative relocation. */
193 HOWTO (R_TILEGX_8_PCREL, /* type */
194 0, /* rightshift */
195 0, /* size (0 = byte, 1 = short, 2 = long) */
196 8, /* bitsize */
197 TRUE, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_signed, /* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_TILEGX_8_PCREL",/* name */
202 FALSE, /* partial_inplace */
203 0, /* src_mask */
204 0xff, /* dst_mask */
205 TRUE), /* pcrel_offset */
206
207 /* A 16 bit relocation without overflow. */
208 HOWTO (R_TILEGX_HW0, /* type */
209 0, /* rightshift */
210 1, /* size (0 = byte, 1 = short, 2 = long) */
211 16, /* bitsize */
212 FALSE, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_dont,/* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_TILEGX_HW0", /* name */
217 FALSE, /* partial_inplace */
218 0, /* src_mask */
219 0xffff, /* dst_mask */
220 FALSE), /* pcrel_offset */
221
222 /* A 16 bit relocation without overflow. */
223 HOWTO (R_TILEGX_HW1, /* type */
224 16, /* rightshift */
225 1, /* size (0 = byte, 1 = short, 2 = long) */
226 16, /* bitsize */
227 FALSE, /* pc_relative */
228 0, /* bitpos */
229 complain_overflow_dont,/* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_TILEGX_HW1", /* name */
232 FALSE, /* partial_inplace */
233 0, /* src_mask */
234 0xffff, /* dst_mask */
235 FALSE), /* pcrel_offset */
236
237 /* A 16 bit relocation without overflow. */
238 HOWTO (R_TILEGX_HW2, /* type */
239 32, /* rightshift */
240 1, /* size (0 = byte, 1 = short, 2 = long) */
241 16, /* bitsize */
242 FALSE, /* pc_relative */
243 0, /* bitpos */
244 complain_overflow_dont,/* complain_on_overflow */
245 bfd_elf_generic_reloc, /* special_function */
246 "R_TILEGX_HW2", /* name */
247 FALSE, /* partial_inplace */
248 0, /* src_mask */
249 0xffff, /* dst_mask */
250 FALSE), /* pcrel_offset */
251
252 /* A 16 bit relocation without overflow. */
253 HOWTO (R_TILEGX_HW3, /* type */
254 48, /* rightshift */
255 1, /* size (0 = byte, 1 = short, 2 = long) */
256 16, /* bitsize */
257 FALSE, /* pc_relative */
258 0, /* bitpos */
259 complain_overflow_dont,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_TILEGX_HW3", /* name */
262 FALSE, /* partial_inplace */
263 0, /* src_mask */
264 0xffff, /* dst_mask */
265 FALSE), /* pcrel_offset */
266
267 /* A 16 bit relocation with overflow. */
268 HOWTO (R_TILEGX_HW0_LAST, /* type */
269 0, /* rightshift */
270 1, /* size (0 = byte, 1 = short, 2 = long) */
271 16, /* bitsize */
272 FALSE, /* pc_relative */
273 0, /* bitpos */
274 complain_overflow_signed,/* complain_on_overflow */
275 bfd_elf_generic_reloc, /* special_function */
276 "R_TILEGX_HW0_LAST", /* name */
277 FALSE, /* partial_inplace */
278 0, /* src_mask */
279 0xffff, /* dst_mask */
280 FALSE), /* pcrel_offset */
281
282 /* A 16 bit relocation with overflow. */
283 HOWTO (R_TILEGX_HW1_LAST, /* type */
284 16, /* rightshift */
285 1, /* size (0 = byte, 1 = short, 2 = long) */
286 16, /* bitsize */
287 FALSE, /* pc_relative */
288 0, /* bitpos */
289 complain_overflow_signed,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_TILEGX_HW1_LAST", /* name */
292 FALSE, /* partial_inplace */
293 0, /* src_mask */
294 0xffff, /* dst_mask */
295 FALSE), /* pcrel_offset */
296
297 /* A 16 bit relocation with overflow. */
298 HOWTO (R_TILEGX_HW2_LAST, /* type */
299 32, /* rightshift */
300 1, /* size (0 = byte, 1 = short, 2 = long) */
301 16, /* bitsize */
302 FALSE, /* pc_relative */
303 0, /* bitpos */
304 complain_overflow_signed,/* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_TILEGX_HW2_LAST", /* name */
307 FALSE, /* partial_inplace */
308 0, /* src_mask */
309 0xffff, /* dst_mask */
310 FALSE), /* pcrel_offset */
311
312 HOWTO (R_TILEGX_COPY, /* type */
313 0, /* rightshift */
314 0, /* size (0 = byte, 1 = short, 2 = long) */
315 0, /* bitsize */
316 FALSE, /* pc_relative */
317 0, /* bitpos */
318 complain_overflow_dont, /* complain_on_overflow */
319 bfd_elf_generic_reloc, /* special_function */
320 "R_TILEGX_COPY", /* name */
321 FALSE, /* partial_inplace */
322 0, /* src_mask */
323 0, /* dst_mask */
324 TRUE), /* pcrel_offset */
325
326 HOWTO (R_TILEGX_GLOB_DAT, /* type */
327 0, /* rightshift */
328 0, /* size (0 = byte, 1 = short, 2 = long) */
329 0, /* bitsize */
330 FALSE, /* pc_relative */
331 0, /* bitpos */
332 complain_overflow_dont, /* complain_on_overflow */
333 bfd_elf_generic_reloc, /* special_function */
334 "R_TILEGX_GLOB_DAT", /* name */
335 FALSE, /* partial_inplace */
336 0, /* src_mask */
337 0, /* dst_mask */
338 TRUE), /* pcrel_offset */
339
340 HOWTO (R_TILEGX_JMP_SLOT, /* type */
341 0, /* rightshift */
342 0, /* size (0 = byte, 1 = short, 2 = long) */
343 0, /* bitsize */
344 FALSE, /* pc_relative */
345 0, /* bitpos */
346 complain_overflow_dont, /* complain_on_overflow */
347 bfd_elf_generic_reloc, /* special_function */
348 "R_TILEGX_JMP_SLOT", /* name */
349 FALSE, /* partial_inplace */
350 0, /* src_mask */
351 0, /* dst_mask */
352 TRUE), /* pcrel_offset */
353
354 HOWTO (R_TILEGX_RELATIVE, /* type */
355 0, /* rightshift */
356 0, /* size (0 = byte, 1 = short, 2 = long) */
357 0, /* bitsize */
358 FALSE, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_dont, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_TILEGX_RELATIVE", /* name */
363 FALSE, /* partial_inplace */
364 0, /* src_mask */
365 0, /* dst_mask */
366 TRUE), /* pcrel_offset */
367
368 HOWTO (R_TILEGX_BROFF_X1, /* type */
369 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
371 17, /* bitsize */
372 TRUE, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_TILEGX_BROFF_X1", /* name */
377 FALSE, /* partial_inplace */
378 0, /* src_mask */
379 -1, /* dst_mask */
380 TRUE), /* pcrel_offset */
381
382 HOWTO (R_TILEGX_JUMPOFF_X1, /* type */
383 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
384 2, /* size (0 = byte, 1 = short, 2 = long) */
385 27, /* bitsize */
386 TRUE, /* pc_relative */
387 0, /* bitpos */
388 complain_overflow_signed,/* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_TILEGX_JUMPOFF_X1", /* name */
391 FALSE, /* partial_inplace */
392 0, /* src_mask */
393 -1, /* dst_mask */
394 TRUE), /* pcrel_offset */
395
396 HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */
397 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
398 2, /* size (0 = byte, 1 = short, 2 = long) */
399 27, /* bitsize */
400 TRUE, /* pc_relative */
401 0, /* bitpos */
402 complain_overflow_signed,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_TILEGX_JUMPOFF_X1_PLT", /* name */
405 FALSE, /* partial_inplace */
406 0, /* src_mask */
407 -1, /* dst_mask */
408 TRUE), /* pcrel_offset */
409
410#define TILEGX_IMM_HOWTO(name, size, bitsize) \
411 HOWTO (name, 0, size, bitsize, FALSE, 0, \
412 complain_overflow_signed, bfd_elf_generic_reloc, \
413 #name, FALSE, 0, -1, FALSE)
414
415#define TILEGX_UIMM_HOWTO(name, size, bitsize) \
416 HOWTO (name, 0, size, bitsize, FALSE, 0, \
417 complain_overflow_unsigned, bfd_elf_generic_reloc, \
418 #name, FALSE, 0, -1, FALSE)
419
420 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 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),
425
426 TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 1, 14),
427 TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 1, 14),
428
429 TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 0, 6),
430 TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 0, 6),
431
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),
436
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)
441
442 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0, 0),
443 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0, 0),
444 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1, 16),
445 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1, 16),
446 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2, 32),
447 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2, 32),
448 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3, 48),
449 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3, 48),
450
451#define TILEGX_IMM16_HOWTO_LAST(name, rshift) \
452 HOWTO (name, rshift, 1, 16, FALSE, 0, \
453 complain_overflow_signed, bfd_elf_generic_reloc, \
454 #name, FALSE, 0, 0xffff, FALSE)
455
456 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST, 0),
457 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST, 0),
458 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST, 16),
459 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST, 16),
460 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST, 32),
461 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST, 32),
462
463 /* PC-relative offsets. */
464
465#define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \
466 HOWTO (name, rshift, 1, 16, TRUE, 0, \
467 complain_overflow_dont, bfd_elf_generic_reloc, \
468 #name, FALSE, 0, 0xffff, TRUE)
469
470 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PCREL, 0),
471 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PCREL, 0),
472 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PCREL, 16),
473 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PCREL, 16),
474 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PCREL, 32),
475 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PCREL, 32),
476 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PCREL, 48),
477 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PCREL, 48),
478
479#define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \
480 HOWTO (name, rshift, 1, 16, TRUE, 0, \
481 complain_overflow_signed, bfd_elf_generic_reloc, \
482 #name, FALSE, 0, 0xffff, TRUE)
483
484 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PCREL, 0),
485 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PCREL, 0),
486 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PCREL, 16),
487 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PCREL, 16),
488 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PCREL, 32),
489 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PCREL, 32),
490
491 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0),
492 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0),
e5b95258
WL		 493
494 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0),
495 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0),
496 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16),
497 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16),
498 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32),
499 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32),
aa137e4d
NC		 500
501 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
502 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
503 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
504 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
e5b95258
WL		 505
506 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48),
507 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48),
aa137e4d
NC		 508
509 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
510 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
6f7be959
WL		 511
512 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_LE, 0),
513 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_LE, 0),
514 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE, 0),
515 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE, 0),
516 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE, 16),
517 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE, 16),
aa137e4d
NC		 518
519 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0),
520 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0),
521 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16),
522 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16),
6f7be959
WL		 523 EMPTY_HOWTO (90),
524 EMPTY_HOWTO (91),
aa137e4d
NC		 525
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)
530
531 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0),
532 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0),
e5b95258
WL		 533
534 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0),
535 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0),
536 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16),
537 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16),
538 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32),
539 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32),
aa137e4d
NC		 540
541#define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
542 HOWTO (name, rshift, 1, 16, FALSE, 0, \
543 complain_overflow_signed, bfd_elf_generic_reloc, \
544 #name, FALSE, 0, 0xffff, TRUE)
545
546 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0),
547 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0),
548 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16),
549 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16),
6f7be959
WL		 550 EMPTY_HOWTO (104),
551 EMPTY_HOWTO (105),
aa137e4d
NC		 552
553 HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
554 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
555 FALSE, 0, 0, TRUE),
556 HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
557 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
558 FALSE, 0, -1, TRUE),
559 HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
560 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
561 FALSE, 0, 0, TRUE),
562
563 HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
564 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
565 FALSE, 0, 0, TRUE),
566 HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield,
567 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
568 FALSE, 0, -1, TRUE),
569 HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
570 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
6f7be959
WL		 571 FALSE, 0, 0, TRUE),
572
573 HOWTO (R_TILEGX_TLS_GD_CALL, /* type */
574 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 27, /* bitsize */
577 TRUE, /* pc_relative */
578 0, /* bitpos */
579 complain_overflow_signed,/* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_TILEGX_TLS_GD_CALL", /* name */
582 FALSE, /* partial_inplace */
583 0, /* src_mask */
584 -1, /* dst_mask */
585 TRUE), /* pcrel_offset */
586
587 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8),
588 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8),
589 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8),
590 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8),
591 TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8),
592 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8),
593 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8),
594 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8),
595 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8),
aa137e4d
NC		 596};
597
598static reloc_howto_type tilegx_elf_howto_table2 [] =
599{
600 /* GNU extension to record C++ vtable hierarchy */
601 HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
602 0, /* rightshift */
603 4, /* size (0 = byte, 1 = short, 2 = long) */
604 0, /* bitsize */
605 FALSE, /* pc_relative */
606 0, /* bitpos */
607 complain_overflow_dont, /* complain_on_overflow */
608 NULL, /* special_function */
609 "R_TILEGX_GNU_VTINHERIT", /* name */
610 FALSE, /* partial_inplace */
611 0, /* src_mask */
612 0, /* dst_mask */
613 FALSE), /* pcrel_offset */
614
615 /* GNU extension to record C++ vtable member usage */
616 HOWTO (R_TILEGX_GNU_VTENTRY, /* type */
617 0, /* rightshift */
618 4, /* size (0 = byte, 1 = short, 2 = long) */
619 0, /* bitsize */
620 FALSE, /* pc_relative */
621 0, /* bitpos */
622 complain_overflow_dont, /* complain_on_overflow */
623 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
624 "R_TILEGX_GNU_VTENTRY", /* name */
625 FALSE, /* partial_inplace */
626 0, /* src_mask */
627 0, /* dst_mask */
628 FALSE), /* pcrel_offset */
629
630};
631\f
632/* Map BFD reloc types to TILEGX ELF reloc types. */
633
634typedef struct tilegx_reloc_map
635{
636 bfd_reloc_code_real_type bfd_reloc_val;
637 unsigned int tilegx_reloc_val;
638 reloc_howto_type * table;
639} reloc_map;
640
641static const reloc_map tilegx_reloc_map [] =
642{
643#define TH_REMAP(bfd, tilegx) \
644 { bfd, tilegx, tilegx_elf_howto_table },
645
646 /* Standard relocations. */
647 TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE)
648 TH_REMAP (BFD_RELOC_64, R_TILEGX_64)
649 TH_REMAP (BFD_RELOC_32, R_TILEGX_32)
650 TH_REMAP (BFD_RELOC_16, R_TILEGX_16)
651 TH_REMAP (BFD_RELOC_8, R_TILEGX_8)
652 TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL)
653 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL)
654 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL)
655 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL)
656
657#define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
658
659 /* Custom relocations. */
660 SIMPLE_REMAP (TILEGX_HW0)
661 SIMPLE_REMAP (TILEGX_HW1)
662 SIMPLE_REMAP (TILEGX_HW2)
663 SIMPLE_REMAP (TILEGX_HW3)
664 SIMPLE_REMAP (TILEGX_HW0_LAST)
665 SIMPLE_REMAP (TILEGX_HW1_LAST)
666 SIMPLE_REMAP (TILEGX_HW2_LAST)
667 SIMPLE_REMAP (TILEGX_COPY)
668 SIMPLE_REMAP (TILEGX_GLOB_DAT)
669 SIMPLE_REMAP (TILEGX_JMP_SLOT)
670 SIMPLE_REMAP (TILEGX_RELATIVE)
671 SIMPLE_REMAP (TILEGX_BROFF_X1)
672 SIMPLE_REMAP (TILEGX_JUMPOFF_X1)
673 SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT)
674 SIMPLE_REMAP (TILEGX_IMM8_X0)
675 SIMPLE_REMAP (TILEGX_IMM8_Y0)
676 SIMPLE_REMAP (TILEGX_IMM8_X1)
677 SIMPLE_REMAP (TILEGX_IMM8_Y1)
678 SIMPLE_REMAP (TILEGX_DEST_IMM8_X1)
679 SIMPLE_REMAP (TILEGX_MT_IMM14_X1)
680 SIMPLE_REMAP (TILEGX_MF_IMM14_X1)
681 SIMPLE_REMAP (TILEGX_MMSTART_X0)
682 SIMPLE_REMAP (TILEGX_MMEND_X0)
683 SIMPLE_REMAP (TILEGX_SHAMT_X0)
684 SIMPLE_REMAP (TILEGX_SHAMT_X1)
685 SIMPLE_REMAP (TILEGX_SHAMT_Y0)
686 SIMPLE_REMAP (TILEGX_SHAMT_Y1)
687 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0)
688 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0)
689 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1)
690 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1)
691 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2)
692 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2)
693 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3)
694 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3)
695 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST)
696 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST)
697 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST)
698 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST)
699 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST)
700 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST)
701 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL)
702 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL)
703 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL)
704 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL)
705 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL)
706 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL)
707 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL)
708 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL)
709 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL)
710 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL)
711 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL)
712 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL)
713 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL)
714 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
715 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
716 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
e5b95258
WL		 717 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL)
718 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL)
719 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL)
720 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL)
721 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL)
722 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL)
aa137e4d
NC		 723 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
724 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
725 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
726 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
e5b95258
WL		 727 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL)
728 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL)
aa137e4d
NC		 729 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
730 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
6f7be959
WL		 731 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE)
732 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE)
733 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE)
734 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE)
735 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE)
736 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
aa137e4d
NC		 737 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD)
738 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD)
739 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD)
740 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
aa137e4d
NC		 741 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
742 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
e5b95258
WL		 743 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL)
744 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL)
745 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL)
746 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL)
747 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL)
748 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL)
aa137e4d
NC		 749 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
750 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
751 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
752 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE)
aa137e4d
NC		 753
754 SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
755 SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
756 SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
757
758 SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
759 SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
760 SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
761
6f7be959
WL		 762 SIMPLE_REMAP (TILEGX_TLS_GD_CALL)
763 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD)
764 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD)
765 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD)
766 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD)
767 SIMPLE_REMAP (TILEGX_TLS_IE_LOAD)
768 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD)
769 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD)
770 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD)
771 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD)
772
aa137e4d
NC		 773#undef SIMPLE_REMAP
774#undef TH_REMAP
775
776 { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 },
777 { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 },
778};
779
780
781
782/* The TILE-Gx linker needs to keep track of the number of relocs that it
783 decides to copy as dynamic relocs in check_relocs for each symbol.
784 This is so that it can later discard them if they are found to be
785 unnecessary. We store the information in a field extending the
786 regular ELF linker hash table. */
787
788struct tilegx_elf_dyn_relocs
789{
790 struct tilegx_elf_dyn_relocs *next;
791
792 /* The input section of the reloc. */
793 asection *sec;
794
795 /* Total number of relocs copied for the input section. */
796 bfd_size_type count;
797
798 /* Number of pc-relative relocs copied for the input section. */
799 bfd_size_type pc_count;
800};
801
802/* TILEGX ELF linker hash entry. */
803
804struct tilegx_elf_link_hash_entry
805{
806 struct elf_link_hash_entry elf;
807
808 /* Track dynamic relocs copied for this symbol. */
809 struct tilegx_elf_dyn_relocs *dyn_relocs;
810
811#define GOT_UNKNOWN 0
812#define GOT_NORMAL 1
813#define GOT_TLS_GD 2
814#define GOT_TLS_IE 4
815 unsigned char tls_type;
816};
817
818#define tilegx_elf_hash_entry(ent) \
819 ((struct tilegx_elf_link_hash_entry *)(ent))
820
821struct _bfd_tilegx_elf_obj_tdata
822{
823 struct elf_obj_tdata root;
824
825 /* tls_type for each local got entry. */
826 char *local_got_tls_type;
827};
828
829#define _bfd_tilegx_elf_tdata(abfd) \
830 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
831
832#define _bfd_tilegx_elf_local_got_tls_type(abfd) \
833 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
834
835#define is_tilegx_elf(bfd) \
836 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
837 && elf_tdata (bfd) != NULL \
838 && elf_object_id (bfd) == TILEGX_ELF_DATA)
839
840#include "elf/common.h"
841#include "elf/internal.h"
842
843struct tilegx_elf_link_hash_table
844{
845 struct elf_link_hash_table elf;
846
847 int bytes_per_word;
848 int word_align_power;
849 int bytes_per_rela;
850 int dtpmod_reloc;
851 int dtpoff_reloc;
852 int tpoff_reloc;
853 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
854 bfd_vma (*r_symndx) (bfd_vma);
855 void (*put_word) (bfd *, bfd_vma, void *);
856 const char *dynamic_interpreter;
857
6f7be959
WL		 858 /* Whether LE transition has been disabled for some of the
859 sections. */
860 bfd_boolean disable_le_transition;
861
aa137e4d
NC		 862 /* Small local sym to section mapping cache. */
863 struct sym_cache sym_cache;
864};
865
866
867/* Get the Tile ELF linker hash table from a link_info structure. */
868#define tilegx_elf_hash_table(p) \
869 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
870 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
871
872#ifdef BFD64
873static bfd_vma
874tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
875 bfd_vma rel_index,
876 bfd_vma type)
877{
878 return ELF64_R_INFO (rel_index, type);
879}
880
881static bfd_vma
882tilegx_elf_r_symndx_64 (bfd_vma r_info)
883{
884 return ELF64_R_SYM (r_info);
885}
886
887static void
888tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
889{
890 bfd_put_64 (abfd, val, ptr);
891}
892#endif /* BFD64 */
893
894static bfd_vma
895tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
896 bfd_vma rel_index,
897 bfd_vma type)
898{
899 return ELF32_R_INFO (rel_index, type);
900}
901
902static bfd_vma
903tilegx_elf_r_symndx_32 (bfd_vma r_info)
904{
905 return ELF32_R_SYM (r_info);
906}
907
908static void
909tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
910{
911 bfd_put_32 (abfd, val, ptr);
912}
913
914reloc_howto_type *
915tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
916 bfd_reloc_code_real_type code)
917{
918 unsigned int i;
919
0ba38529 920 for (i = ARRAY_SIZE (tilegx_reloc_map); i--;)
aa137e4d
NC		 921 {
922 const reloc_map * entry;
923
924 entry = tilegx_reloc_map + i;
925
926 if (entry->bfd_reloc_val == code)
927 return entry->table + (entry->tilegx_reloc_val
928 - entry->table[0].type);
929 }
930
931 return NULL;
932}
933
934reloc_howto_type *
935tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
936 const char *r_name)
937{
938 unsigned int i;
939
940 for (i = 0;
941 i < (sizeof (tilegx_elf_howto_table)
942 / sizeof (tilegx_elf_howto_table[0]));
943 i++)
944 if (tilegx_elf_howto_table[i].name != NULL
945 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
946 return &tilegx_elf_howto_table[i];
947
948 return NULL;
949}
950
951void
952tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
953 arelent *cache_ptr,
954 Elf_Internal_Rela *dst)
955{
956 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
957
6f7be959 958 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
aa137e4d
NC		 959 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
960 else if (r_type - R_TILEGX_GNU_VTINHERIT
961 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
962 cache_ptr->howto
963 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
964 else
965 abort ();
966}
967
968typedef tilegx_bundle_bits (*tilegx_create_func)(int);
969
970static const tilegx_create_func reloc_to_create_func[] =
971{
972 /* The first twenty relocation types don't correspond to operands */
973 NULL,
974 NULL,
975 NULL,
976 NULL,
977 NULL,
978 NULL,
979 NULL,
980 NULL,
981 NULL,
982 NULL,
983 NULL,
984 NULL,
985 NULL,
986 NULL,
987 NULL,
988 NULL,
989 NULL,
990 NULL,
991 NULL,
992 NULL,
993
994 /* The remaining relocations are used for immediate operands */
995 create_BrOff_X1,
996 create_JumpOff_X1,
997 create_JumpOff_X1,
998 create_Imm8_X0,
999 create_Imm8_Y0,
1000 create_Imm8_X1,
1001 create_Imm8_Y1,
1002 create_Dest_Imm8_X1,
1003 create_MT_Imm14_X1,
1004 create_MF_Imm14_X1,
1005 create_BFStart_X0,
1006 create_BFEnd_X0,
1007 create_ShAmt_X0,
1008 create_ShAmt_X1,
1009 create_ShAmt_Y0,
1010 create_ShAmt_Y1,
1011 create_Imm16_X0,
1012 create_Imm16_X1,
1013 create_Imm16_X0,
1014 create_Imm16_X1,
1015 create_Imm16_X0,
1016 create_Imm16_X1,
1017 create_Imm16_X0,
1018 create_Imm16_X1,
1019 create_Imm16_X0,
1020 create_Imm16_X1,
1021 create_Imm16_X0,
1022 create_Imm16_X1,
1023 create_Imm16_X0,
1024 create_Imm16_X1,
1025 create_Imm16_X0,
1026 create_Imm16_X1,
1027 create_Imm16_X0,
1028 create_Imm16_X1,
1029 create_Imm16_X0,
1030 create_Imm16_X1,
1031 create_Imm16_X0,
1032 create_Imm16_X1,
1033 create_Imm16_X0,
1034 create_Imm16_X1,
1035 create_Imm16_X0,
1036 create_Imm16_X1,
1037 create_Imm16_X0,
1038 create_Imm16_X1,
1039 create_Imm16_X0,
1040 create_Imm16_X1,
1041 create_Imm16_X0,
1042 create_Imm16_X1,
1043 create_Imm16_X0,
1044 create_Imm16_X1,
1045 create_Imm16_X0,
1046 create_Imm16_X1,
1047 create_Imm16_X0,
1048 create_Imm16_X1,
1049 create_Imm16_X0,
1050 create_Imm16_X1,
1051 create_Imm16_X0,
1052 create_Imm16_X1,
1053 create_Imm16_X0,
1054 create_Imm16_X1,
1055 create_Imm16_X0,
1056 create_Imm16_X1,
e5b95258
WL		 1057 create_Imm16_X0,
1058 create_Imm16_X1,
1059 create_Imm16_X0,
1060 create_Imm16_X1,
1061 create_Imm16_X0,
1062 create_Imm16_X1,
aa137e4d
NC		 1063 create_Imm16_X0,
1064 create_Imm16_X1,
6f7be959
WL		 1065 NULL,
1066 NULL,
e5b95258
WL		 1067 create_Imm16_X0,
1068 create_Imm16_X1,
1069 create_Imm16_X0,
1070 create_Imm16_X1,
1071 create_Imm16_X0,
1072 create_Imm16_X1,
1073 create_Imm16_X0,
1074 create_Imm16_X1,
aa137e4d
NC		 1075 create_Imm16_X0,
1076 create_Imm16_X1,
1077 create_Imm16_X0,
1078 create_Imm16_X1,
aa137e4d
NC		 1079};
1080
1081static void
1082tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1083{
1084 const struct elf_backend_data *bed;
1085 bfd_byte *loc;
1086
1087 bed = get_elf_backend_data (abfd);
1088 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1089 bed->s->swap_reloca_out (abfd, rel, loc);
1090}
1091
1092/* PLT/GOT stuff */
1093
1094/* The procedure linkage table starts with the following header:
1095
1096 ld_add r28, r27, 8
1097 ld r27, r27
1098 {
1099 jr r27
1100 info 10 ## SP not offset, return PC in LR
1101 }
1102
1103 Subsequent entries are the following, jumping to the header at the end:
1104
1105 {
1106 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1107 lnk r26
1108 }
11091:
1110 {
1111 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1112 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1113 }
1114 {
1115 add r28, r26, r28
1116 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1117 }
1118 {
1119 add r27, r26, r27
1120 ld r28, r28
1121 info 10 ## SP not offset, return PC in LR
1122 }
1123 {
1124 shl16insli r29, zero, MY_PLT_INDEX
1125 jr r28
1126 }
1127
1128 This code sequence lets the code at at the start of the PLT determine
1129 which PLT entry was executed by examining 'r29'.
1130
1131 Note that MY_PLT_INDEX skips over the header entries, so the first
1132 actual jump table entry has index zero.
1133
1134 If the offset fits in 16 bits,
1135
1136 lnk r26
11371:
1138 {
1139 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1140 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1141 }
1142 {
1143 shl16insli r29, zero, MY_PLT_INDEX
1144 ld r28, r28
1145 }
1146 {
1147 add r27, r26, r27
1148 jr r28
1149 }
1150 info 10 ## SP not offset, return PC in LR
1151
1152 For the purpose of backtracing, the procedure linkage table ends with the
1153 following tail entry:
1154
1155 info 10 ## SP not offset, return PC in LR
1156
1157 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1158 the GOT being multiples of 4 instead of 8.
1159
1160*/
1161
1162#define PLT_HEADER_SIZE_IN_BUNDLES 3
1163#define PLT_ENTRY_SIZE_IN_BUNDLES 5
1164#define PLT_TAIL_SIZE_IN_BUNDLES 1
1165
1166#define PLT_HEADER_SIZE \
1167 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1168#define PLT_ENTRY_SIZE \
1169 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1170#define PLT_TAIL_SIZE \
1171 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1172
1173#define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1174
1175#define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1176
1177static const bfd_byte
1178tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1179{
1180 0x00, 0x30, 0x48, 0x51,
1181 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1182 0x00, 0x30, 0xbc, 0x35,
1183 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1184 0xff, 0xaf, 0x30, 0x40,
1185 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1186};
1187
1188static const bfd_byte
1189tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1190{
1191 0xdc, 0x0f, 0x00, 0x10,
1192 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1193 0xdb, 0x0f, 0x00, 0x10,
1194 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1195 0x9c, 0xc6, 0x0d, 0xd0,
1196 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1197 0x9b, 0xb6, 0xc5, 0xad,
1198 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1199 0xdd, 0x0f, 0x00, 0x70,
1200 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1201};
1202
1203static const bfd_byte
1204tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1205{
1206 0x00, 0x30, 0x48, 0x51,
1207 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1208 0x9c, 0x06, 0x00, 0x90,
1209 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1210 0xdd, 0x0f, 0x00, 0x70,
1211 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1212 0x9b, 0xb6, 0x0d, 0x50,
1213 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1214 0x00, 0x30, 0x48, 0xd1,
1215 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1216};
1217
1218/* Reuse an existing info 10 bundle. */
0e4894b9 1219static const bfd_byte *const tilegx64_plt_tail_entry =
aa137e4d
NC		 1220 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1221
1222static const bfd_byte
1223tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1224{
1225 0x00, 0x30, 0x48, 0x51,
1226 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1227 0x00, 0x30, 0xbc, 0x35,
1228 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1229 0xff, 0xaf, 0x30, 0x40,
1230 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1231};
1232
1233static const bfd_byte
1234tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1235{
1236 0xdc, 0x0f, 0x00, 0x10,
1237 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1238 0xdb, 0x0f, 0x00, 0x10,
1239 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1240 0x9c, 0xc6, 0x0d, 0xd0,
1241 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1242 0x9b, 0xb6, 0xc5, 0xad,
1243 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1244 0xdd, 0x0f, 0x00, 0x70,
1245 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1246};
1247
1248static const bfd_byte
1249tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1250{
1251 0x00, 0x30, 0x48, 0x51,
1252 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1253 0x9c, 0x06, 0x00, 0x90,
1254 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1255 0xdd, 0x0f, 0x00, 0x70,
1256 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1257 0x9b, 0xb6, 0x0d, 0x50,
1258 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1259 0x00, 0x30, 0x48, 0xd1,
1260 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1261};
1262
1263/* Reuse an existing info 10 bundle. */
0e4894b9 1264static const bfd_byte *const tilegx32_plt_tail_entry =
aa137e4d
NC		 1265 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1266
1267static int
1268tilegx_plt_entry_build (bfd *output_bfd,
1269 struct tilegx_elf_link_hash_table *htab,
1270 asection *splt, asection *sgotplt,
1271 bfd_vma offset, bfd_vma *r_offset)
1272{
1273 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1274 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1275 + GOTPLT_HEADER_SIZE (htab));
1276 tilegx_bundle_bits *pc;
1277
1278 /* Compute the distance from the got entry to the lnk. */
1279 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1280 + sgotplt->output_offset
1281 + got_offset
1282 - splt->output_section->vma
1283 - splt->output_offset
1284 - offset
1285 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1286
1287 /* Compute the distance to GOTPLT[0]. */
1288 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1289
1290 /* Check whether we can use the short plt entry with 16-bit offset. */
1291 bfd_boolean short_plt_entry =
1292 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1293
1294 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1295 (ABI_64_P (output_bfd) ?
1296 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1297 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1298
1299 /* Copy the plt entry template. */
1300 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1301
1302 /* Write the immediate offsets. */
1303 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1304
1305 if (short_plt_entry)
1306 {
1307 /* { lnk r28 } */
1308 pc++;
1309
1310 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1311 *pc++ |= create_Imm16_X0 (dist_got_entry)
1312 | create_Imm16_X1 (dist_got0);
1313
1314 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1315 *pc++ |= create_Imm16_X0 (plt_index);
1316 }
1317 else
1318 {
1319 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1320 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1321
1322 /* { moveli r27, &GOTPLT[0] ;
1323 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1324 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1325 | create_Imm16_X1 (dist_got_entry);
1326
1327 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1328 *pc++ |= create_Imm16_X1 (dist_got0);
1329
1330 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1331 pc++;
1332
1333 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1334 *pc++ |= create_Imm16_X0 (plt_index);
1335 }
1336
1337 /* Set the relocation offset. */
1338 *r_offset = got_offset;
1339
1340 return plt_index;
1341}
1342
1343/* Create an entry in an TILEGX ELF linker hash table. */
1344
1345static struct bfd_hash_entry *
1346link_hash_newfunc (struct bfd_hash_entry *entry,
1347 struct bfd_hash_table *table, const char *string)
1348{
1349 /* Allocate the structure if it has not already been allocated by a
1350 subclass. */
1351 if (entry == NULL)
1352 {
1353 entry =
1354 bfd_hash_allocate (table,
1355 sizeof (struct tilegx_elf_link_hash_entry));
1356 if (entry == NULL)
1357 return entry;
1358 }
1359
1360 /* Call the allocation method of the superclass. */
1361 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1362 if (entry != NULL)
1363 {
1364 struct tilegx_elf_link_hash_entry *eh;
1365
1366 eh = (struct tilegx_elf_link_hash_entry *) entry;
1367 eh->dyn_relocs = NULL;
1368 eh->tls_type = GOT_UNKNOWN;
1369 }
1370
1371 return entry;
1372}
1373
1374/* Create a TILEGX ELF linker hash table. */
1375
1376struct bfd_link_hash_table *
1377tilegx_elf_link_hash_table_create (bfd *abfd)
1378{
1379 struct tilegx_elf_link_hash_table *ret;
1380 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1381
1382 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1383 if (ret == NULL)
1384 return NULL;
1385
1386#ifdef BFD64
1387 if (ABI_64_P (abfd))
1388 {
1389 ret->bytes_per_word = 8;
1390 ret->word_align_power = 3;
1391 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1392 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1393 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1394 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1395 ret->r_info = tilegx_elf_r_info_64;
1396 ret->r_symndx = tilegx_elf_r_symndx_64;
1397 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1398 ret->put_word = tilegx_put_word_64;
1399 }
1400 else
1401#endif
1402 {
1403 ret->bytes_per_word = 4;
1404 ret->word_align_power = 2;
1405 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1406 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1407 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1408 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1409 ret->r_info = tilegx_elf_r_info_32;
1410 ret->r_symndx = tilegx_elf_r_symndx_32;
1411 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1412 ret->put_word = tilegx_put_word_32;
1413 }
1414
1415 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1416 sizeof (struct tilegx_elf_link_hash_entry),
1417 TILEGX_ELF_DATA))
1418 {
1419 free (ret);
1420 return NULL;
1421 }
1422
1423 return &ret->elf.root;
1424}
1425
1426/* Create the .got section. */
1427
1428static bfd_boolean
1429tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1430{
1431 flagword flags;
1432 asection *s, *s_got;
1433 struct elf_link_hash_entry *h;
1434 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1435 struct elf_link_hash_table *htab = elf_hash_table (info);
1436
1437 /* This function may be called more than once. */
ce558b89 1438 if (htab->sgot != NULL)
aa137e4d
NC		 1439 return TRUE;
1440
1441 flags = bed->dynamic_sec_flags;
1442
3d4d4302
AM		 1443 s = bfd_make_section_anyway_with_flags (abfd,
1444 (bed->rela_plts_and_copies_p
1445 ? ".rela.got" : ".rel.got"),
1446 (bed->dynamic_sec_flags
1447 | SEC_READONLY));
aa137e4d
NC		 1448 if (s == NULL
1449 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1450 return FALSE;
1451 htab->srelgot = s;
1452
3d4d4302 1453 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
aa137e4d
NC		 1454 if (s == NULL
1455 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1456 return FALSE;
1457 htab->sgot = s;
1458
1459 /* The first bit of the global offset table is the header. */
1460 s->size += bed->got_header_size;
1461
1462 if (bed->want_got_plt)
1463 {
3d4d4302 1464 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
aa137e4d
NC		 1465 if (s == NULL
1466 || !bfd_set_section_alignment (abfd, s,
1467 bed->s->log_file_align))
1468 return FALSE;
1469 htab->sgotplt = s;
1470
1471 /* Reserve room for the header. */
1472 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1473 }
1474
1475 if (bed->want_got_sym)
1476 {
1477 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1478 section. We don't do this in the linker script because we don't want
1479 to define the symbol if we are not creating a global offset
1480 table. */
1481 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1482 "_GLOBAL_OFFSET_TABLE_");
1483 elf_hash_table (info)->hgot = h;
1484 if (h == NULL)
1485 return FALSE;
1486 }
1487
1488 return TRUE;
1489}
1490
1491/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1492 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1493 hash table. */
1494
1495bfd_boolean
1496tilegx_elf_create_dynamic_sections (bfd *dynobj,
1497 struct bfd_link_info *info)
1498{
aa137e4d
NC		 1499 if (!tilegx_elf_create_got_section (dynobj, info))
1500 return FALSE;
1501
9d19e4fd 1502 return _bfd_elf_create_dynamic_sections (dynobj, info);
aa137e4d
NC		 1503}
1504
1505/* Copy the extra info we tack onto an elf_link_hash_entry. */
1506
1507void
1508tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1509 struct elf_link_hash_entry *dir,
1510 struct elf_link_hash_entry *ind)
1511{
1512 struct tilegx_elf_link_hash_entry *edir, *eind;
1513
1514 edir = (struct tilegx_elf_link_hash_entry *) dir;
1515 eind = (struct tilegx_elf_link_hash_entry *) ind;
1516
1517 if (eind->dyn_relocs != NULL)
1518 {
1519 if (edir->dyn_relocs != NULL)
1520 {
1521 struct tilegx_elf_dyn_relocs **pp;
1522 struct tilegx_elf_dyn_relocs *p;
1523
1524 /* Add reloc counts against the indirect sym to the direct sym
1525 list. Merge any entries against the same section. */
1526 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1527 {
1528 struct tilegx_elf_dyn_relocs *q;
1529
1530 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1531 if (q->sec == p->sec)
1532 {
1533 q->pc_count += p->pc_count;
1534 q->count += p->count;
1535 *pp = p->next;
1536 break;
1537 }
1538 if (q == NULL)
1539 pp = &p->next;
1540 }
1541 *pp = edir->dyn_relocs;
1542 }
1543
1544 edir->dyn_relocs = eind->dyn_relocs;
1545 eind->dyn_relocs = NULL;
1546 }
1547
1548 if (ind->root.type == bfd_link_hash_indirect
1549 && dir->got.refcount <= 0)
1550 {
1551 edir->tls_type = eind->tls_type;
1552 eind->tls_type = GOT_UNKNOWN;
1553 }
1554 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1555}
1556
6f7be959
WL		 1557static int
1558tilegx_tls_translate_to_le (int r_type)
1559{
1560 switch (r_type)
1561 {
1562 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1563 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1564 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1565
1566 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1567 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1568 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1569
1570 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1571 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1572 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1573
1574 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1575 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1576 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1577
1578 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1579 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1580 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1581
1582 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1583 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1584 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1585 }
1586 return r_type;
1587}
1588
1589static int
1590tilegx_tls_translate_to_ie (int r_type)
1591{
1592 switch (r_type)
1593 {
1594 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1595 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1596 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1597
1598 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1599 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1600 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1601
1602 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1603 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1604 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1605
1606 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1607 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1608 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1609
1610 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1611 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1612 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1613
1614 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1615 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1616 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1617 }
1618 return r_type;
1619}
1620
1621static int
1622tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1623 int is_local, bfd_boolean disable_le_transition)
1624{
0e1862bb 1625 if (bfd_link_pic (info))
6f7be959
WL		 1626 return r_type;
1627
1628 if (is_local && !disable_le_transition)
1629 return tilegx_tls_translate_to_le (r_type);
1630 else
1631 return tilegx_tls_translate_to_ie (r_type);
1632}
1633
aa137e4d
NC		 1634/* Look through the relocs for a section during the first phase, and
1635 allocate space in the global offset table or procedure linkage
1636 table. */
1637
1638bfd_boolean
1639tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1640 asection *sec, const Elf_Internal_Rela *relocs)
1641{
1642 struct tilegx_elf_link_hash_table *htab;
1643 Elf_Internal_Shdr *symtab_hdr;
1644 struct elf_link_hash_entry **sym_hashes;
aa137e4d
NC		 1645 const Elf_Internal_Rela *rel;
1646 const Elf_Internal_Rela *rel_end;
1647 asection *sreloc;
1648 int num_relocs;
6f7be959 1649 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
aa137e4d 1650
0e1862bb 1651 if (bfd_link_relocatable (info))
aa137e4d
NC		 1652 return TRUE;
1653
1654 htab = tilegx_elf_hash_table (info);
1655 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1656 sym_hashes = elf_sym_hashes (abfd);
aa137e4d
NC		 1657
1658 sreloc = NULL;
1659
1660 num_relocs = sec->reloc_count;
1661
1662 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1663
1664 if (htab->elf.dynobj == NULL)
1665 htab->elf.dynobj = abfd;
1666
1667 rel_end = relocs + num_relocs;
6f7be959
WL		 1668
1669 /* Check whether to do optimization to transform TLS GD/IE
1670 referehces to TLS LE. We disable it if we're linking with old
1671 TLS code sequences that do not support such optimization. Old
1672 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1673 no tls_add relocations. */
1674 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1675 {
1676 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1677 switch (r_type)
1678 {
1679 case R_TILEGX_TLS_GD_CALL:
1680 case R_TILEGX_TLS_IE_LOAD:
1681 has_tls_gd_or_ie = TRUE;
1682 break;
1683 case R_TILEGX_IMM8_X0_TLS_ADD:
1684 case R_TILEGX_IMM8_Y0_TLS_ADD:
1685 case R_TILEGX_IMM8_X1_TLS_ADD:
1686 case R_TILEGX_IMM8_Y1_TLS_ADD:
1687 has_tls_add = TRUE;
1688 break;
1689 }
1690 }
1691
1692 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1693 htab->disable_le_transition |= sec->sec_flg0;
1694
aa137e4d
NC		 1695 for (rel = relocs; rel < rel_end; rel++)
1696 {
1697 unsigned int r_type;
d42c267e 1698 unsigned int r_symndx;
aa137e4d
NC		 1699 struct elf_link_hash_entry *h;
1700 int tls_type;
1701
1702 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1703 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1704
1705 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1706 {
695344c0 1707 /* xgettext:c-format */
4eca0228
AM		 1708 _bfd_error_handler (_("%B: bad symbol index: %d"),
1709 abfd, r_symndx);
aa137e4d
NC		 1710 return FALSE;
1711 }
1712
1713 if (r_symndx < symtab_hdr->sh_info)
1714 h = NULL;
1715 else
1716 {
1717 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1718 while (h->root.type == bfd_link_hash_indirect
1719 || h->root.type == bfd_link_hash_warning)
1720 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 1721
1722 /* PR15323, ref flags aren't set for references in the same
1723 object. */
bc4e12de 1724 h->root.non_ir_ref_regular = 1;
aa137e4d
NC		 1725 }
1726
6f7be959
WL		 1727 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1728 sec->sec_flg0);
aa137e4d
NC		 1729 switch (r_type)
1730 {
6f7be959
WL		 1731 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1732 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1733 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1734 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1735 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1736 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
0e1862bb 1737 if (bfd_link_pic (info))
6f7be959
WL		 1738 goto r_tilegx_plt32;
1739 break;
1740
aa137e4d
NC		 1741 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1742 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 1743 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1744 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1745 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1746 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
0e1862bb 1747 BFD_ASSERT (bfd_link_pic (info));
6f7be959 1748 tls_type = GOT_TLS_GD;
aa137e4d
NC		 1749 goto have_got_reference;
1750
1751 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1752 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 1753 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1754 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1755 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1756 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d 1757 tls_type = GOT_TLS_IE;
0e1862bb 1758 if (bfd_link_pic (info))
aa137e4d
NC		 1759 info->flags |= DF_STATIC_TLS;
1760 goto have_got_reference;
1761
1762 case R_TILEGX_IMM16_X0_HW0_GOT:
1763 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 1764 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1765 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1766 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1767 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 1768 tls_type = GOT_NORMAL;
1769 /* Fall Through */
1770
1771 have_got_reference:
1772 /* This symbol requires a global offset table entry. */
1773 {
1774 int old_tls_type;
1775
1776 if (h != NULL)
1777 {
1778 h->got.refcount += 1;
1779 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1780 }
1781 else
1782 {
1783 bfd_signed_vma *local_got_refcounts;
1784
1785 /* This is a global offset table entry for a local symbol. */
1786 local_got_refcounts = elf_local_got_refcounts (abfd);
1787 if (local_got_refcounts == NULL)
1788 {
1789 bfd_size_type size;
1790
1791 size = symtab_hdr->sh_info;
1792 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1793 local_got_refcounts = ((bfd_signed_vma *)
1794 bfd_zalloc (abfd, size));
1795 if (local_got_refcounts == NULL)
1796 return FALSE;
1797 elf_local_got_refcounts (abfd) = local_got_refcounts;
1798 _bfd_tilegx_elf_local_got_tls_type (abfd)
1799 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1800 }
1801 local_got_refcounts[r_symndx] += 1;
1802 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1803 }
1804
1805 /* If a TLS symbol is accessed using IE at least once,
1806 there is no point to use dynamic model for it. */
1807 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1808 && (old_tls_type != GOT_TLS_GD
1809 || tls_type != GOT_TLS_IE))
1810 {
1811 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1812 tls_type = old_tls_type;
1813 else
1814 {
4eca0228 1815 _bfd_error_handler
695344c0 1816 /* xgettext:c-format */
aa137e4d
NC		 1817 (_("%B: `%s' accessed both as normal and thread local symbol"),
1818 abfd, h ? h->root.root.string : "<local>");
1819 return FALSE;
1820 }
1821 }
1822
1823 if (old_tls_type != tls_type)
1824 {
1825 if (h != NULL)
1826 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1827 else
1828 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1829 }
1830 }
1831
1832 if (htab->elf.sgot == NULL)
1833 {
1834 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1835 return FALSE;
1836 }
1837 break;
1838
6f7be959 1839 case R_TILEGX_TLS_GD_CALL:
0e1862bb 1840 if (bfd_link_pic (info))
6f7be959
WL		 1841 {
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,
1848 NULL, FALSE, FALSE,
1849 &bh))
1850 return FALSE;
1851 h = (struct elf_link_hash_entry *) bh;
1852 }
1853 else
1854 break;
1855 /* Fall through */
1856
aa137e4d 1857 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 1858 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1859 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1860 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1861 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1862 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1863 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1864 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1865 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1866 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1867 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1868 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1869 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1870 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1871 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 1872 /* This symbol requires a procedure linkage table entry. We
1873 actually build the entry in adjust_dynamic_symbol,
1874 because this might be a case of linking PIC code without
1875 linking in any dynamic objects, in which case we don't
1876 need to generate a procedure linkage table after all. */
1877
1878 if (h != NULL)
1879 {
1880 h->needs_plt = 1;
1881 h->plt.refcount += 1;
1882 }
1883 break;
1884
1885 case R_TILEGX_64_PCREL:
1886 case R_TILEGX_32_PCREL:
1887 case R_TILEGX_16_PCREL:
1888 case R_TILEGX_8_PCREL:
1889 case R_TILEGX_IMM16_X0_HW0_PCREL:
1890 case R_TILEGX_IMM16_X1_HW0_PCREL:
1891 case R_TILEGX_IMM16_X0_HW1_PCREL:
1892 case R_TILEGX_IMM16_X1_HW1_PCREL:
1893 case R_TILEGX_IMM16_X0_HW2_PCREL:
1894 case R_TILEGX_IMM16_X1_HW2_PCREL:
1895 case R_TILEGX_IMM16_X0_HW3_PCREL:
1896 case R_TILEGX_IMM16_X1_HW3_PCREL:
1897 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1898 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1899 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1900 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1901 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1902 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1903 if (h != NULL)
1904 h->non_got_ref = 1;
1905
1906 if (h != NULL
1907 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1908 break;
1909 /* Fall through. */
1910
1911 case R_TILEGX_64:
1912 case R_TILEGX_32:
1913 case R_TILEGX_16:
1914 case R_TILEGX_8:
1915 case R_TILEGX_HW0:
1916 case R_TILEGX_HW1:
1917 case R_TILEGX_HW2:
1918 case R_TILEGX_HW3:
1919 case R_TILEGX_HW0_LAST:
1920 case R_TILEGX_HW1_LAST:
1921 case R_TILEGX_HW2_LAST:
1922 case R_TILEGX_COPY:
1923 case R_TILEGX_GLOB_DAT:
1924 case R_TILEGX_JMP_SLOT:
1925 case R_TILEGX_RELATIVE:
1926 case R_TILEGX_BROFF_X1:
1927 case R_TILEGX_JUMPOFF_X1:
1928 case R_TILEGX_IMM8_X0:
1929 case R_TILEGX_IMM8_Y0:
1930 case R_TILEGX_IMM8_X1:
1931 case R_TILEGX_IMM8_Y1:
1932 case R_TILEGX_DEST_IMM8_X1:
1933 case R_TILEGX_MT_IMM14_X1:
1934 case R_TILEGX_MF_IMM14_X1:
1935 case R_TILEGX_MMSTART_X0:
1936 case R_TILEGX_MMEND_X0:
1937 case R_TILEGX_SHAMT_X0:
1938 case R_TILEGX_SHAMT_X1:
1939 case R_TILEGX_SHAMT_Y0:
1940 case R_TILEGX_SHAMT_Y1:
1941 case R_TILEGX_IMM16_X0_HW0:
1942 case R_TILEGX_IMM16_X1_HW0:
1943 case R_TILEGX_IMM16_X0_HW1:
1944 case R_TILEGX_IMM16_X1_HW1:
1945 case R_TILEGX_IMM16_X0_HW2:
1946 case R_TILEGX_IMM16_X1_HW2:
1947 case R_TILEGX_IMM16_X0_HW3:
1948 case R_TILEGX_IMM16_X1_HW3:
1949 case R_TILEGX_IMM16_X0_HW0_LAST:
1950 case R_TILEGX_IMM16_X1_HW0_LAST:
1951 case R_TILEGX_IMM16_X0_HW1_LAST:
1952 case R_TILEGX_IMM16_X1_HW1_LAST:
1953 case R_TILEGX_IMM16_X0_HW2_LAST:
1954 case R_TILEGX_IMM16_X1_HW2_LAST:
1955 if (h != NULL)
6f7be959 1956 h->non_got_ref = 1;
aa137e4d 1957
6f7be959 1958 r_tilegx_plt32:
0e1862bb 1959 if (h != NULL && !bfd_link_pic (info))
6f7be959
WL		 1960 {
1961 /* We may need a .plt entry if the function this reloc
1962 refers to is in a shared lib. */
1963 h->plt.refcount += 1;
1964 }
aa137e4d
NC		 1965
1966 /* If we are creating a shared library, and this is a reloc
1967 against a global symbol, or a non PC relative reloc
1968 against a local symbol, then we need to copy the reloc
1969 into the shared library. However, if we are linking with
1970 -Bsymbolic, we do not need to copy a reloc against a
1971 global symbol which is defined in an object we are
1972 including in the link (i.e., DEF_REGULAR is set). At
1973 this point we have not seen all the input files, so it is
1974 possible that DEF_REGULAR is not set now but will be set
1975 later (it is never cleared). In case of a weak definition,
1976 DEF_REGULAR may be cleared later by a strong definition in
1977 a shared library. We account for that possibility below by
1978 storing information in the relocs_copied field of the hash
1979 table entry. A similar situation occurs when creating
1980 shared libraries and symbol visibility changes render the
1981 symbol local.
1982
1983 If on the other hand, we are creating an executable, we
1984 may need to keep relocations for symbols satisfied by a
1985 dynamic library if we manage to avoid copy relocs for the
1986 symbol. */
0e1862bb 1987 if ((bfd_link_pic (info)
aa137e4d
NC		 1988 && (sec->flags & SEC_ALLOC) != 0
1989 && (! tilegx_elf_howto_table[r_type].pc_relative
1990 || (h != NULL
1991 && (! info->symbolic
1992 || h->root.type == bfd_link_hash_defweak
1993 || !h->def_regular))))
0e1862bb 1994 || (!bfd_link_pic (info)
aa137e4d
NC		 1995 && (sec->flags & SEC_ALLOC) != 0
1996 && h != NULL
1997 && (h->root.type == bfd_link_hash_defweak
1998 || !h->def_regular)))
1999 {
2000 struct tilegx_elf_dyn_relocs *p;
2001 struct tilegx_elf_dyn_relocs **head;
2002
2003 /* When creating a shared object, we must copy these
2004 relocs into the output file. We create a reloc
2005 section in dynobj and make room for the reloc. */
2006 if (sreloc == NULL)
2007 {
2008 sreloc = _bfd_elf_make_dynamic_reloc_section
2009 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2010 /*rela?*/ TRUE);
2011
2012 if (sreloc == NULL)
2013 return FALSE;
2014 }
2015
2016 /* If this is a global symbol, we count the number of
2017 relocations we need for this symbol. */
2018 if (h != NULL)
2019 head =
2020 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2021 else
2022 {
2023 /* Track dynamic relocs needed for local syms too.
2024 We really need local syms available to do this
2025 easily. Oh well. */
2026
2027 asection *s;
2028 void *vpp;
2029 Elf_Internal_Sym *isym;
2030
2031 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2032 abfd, r_symndx);
2033 if (isym == NULL)
2034 return FALSE;
2035
2036 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2037 if (s == NULL)
2038 s = sec;
2039
2040 vpp = &elf_section_data (s)->local_dynrel;
2041 head = (struct tilegx_elf_dyn_relocs **) vpp;
2042 }
2043
2044 p = *head;
2045 if (p == NULL || p->sec != sec)
2046 {
2047 bfd_size_type amt = sizeof *p;
2048 p = ((struct tilegx_elf_dyn_relocs *)
2049 bfd_alloc (htab->elf.dynobj, amt));
2050 if (p == NULL)
2051 return FALSE;
2052 p->next = *head;
2053 *head = p;
2054 p->sec = sec;
2055 p->count = 0;
2056 p->pc_count = 0;
2057 }
2058
2059 p->count += 1;
2060 if (tilegx_elf_howto_table[r_type].pc_relative)
2061 p->pc_count += 1;
2062 }
2063
2064 break;
2065
2066 case R_TILEGX_GNU_VTINHERIT:
2067 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2068 return FALSE;
2069 break;
2070
2071 case R_TILEGX_GNU_VTENTRY:
2072 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2073 return FALSE;
2074 break;
2075
2076 default:
2077 break;
2078 }
2079 }
2080
2081 return TRUE;
2082}
2083
2084\f
2085asection *
2086tilegx_elf_gc_mark_hook (asection *sec,
2087 struct bfd_link_info *info,
2088 Elf_Internal_Rela *rel,
2089 struct elf_link_hash_entry *h,
2090 Elf_Internal_Sym *sym)
2091{
2092 if (h != NULL)
2093 {
2094 switch (TILEGX_ELF_R_TYPE (rel->r_info))
b45b6908
AM		 2095 {
2096 case R_TILEGX_GNU_VTINHERIT:
2097 case R_TILEGX_GNU_VTENTRY:
2098 return NULL;
2099 }
2100 }
2101
2102 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 2103 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2104 if (bfd_link_pic (info))
b45b6908 2105 {
8e354058
L		 2106 struct bfd_link_hash_entry *bh;
2107
b45b6908
AM		 2108 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2109 {
2110 case R_TILEGX_TLS_GD_CALL:
2111 /* This reloc implicitly references __tls_get_addr. We know
2112 another reloc will reference the same symbol as the one
2113 on this reloc, so the real symbol and section will be
2114 gc marked when processing the other reloc. That lets
2115 us handle __tls_get_addr here. */
8e354058
L		 2116 bh = NULL;
2117 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
2118 "__tls_get_addr", 0,
2119 bfd_und_section_ptr,
2120 0, NULL, FALSE,
2121 FALSE, &bh))
2122 return NULL;
2123 h = (struct elf_link_hash_entry *) bh;
b45b6908
AM		 2124 BFD_ASSERT (h != NULL);
2125 h->mark = 1;
2126 if (h->u.weakdef != NULL)
2127 h->u.weakdef->mark = 1;
2128 sym = NULL;
2129 }
aa137e4d
NC		 2130 }
2131
2132 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2133}
2134
aa137e4d
NC		 2135/* Adjust a symbol defined by a dynamic object and referenced by a
2136 regular object. The current definition is in some section of the
2137 dynamic object, but we're not including those sections. We have to
2138 change the definition to something the rest of the link can
2139 understand. */
2140
2141bfd_boolean
2142tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2143 struct elf_link_hash_entry *h)
2144{
2145 struct tilegx_elf_link_hash_table *htab;
2146 struct tilegx_elf_link_hash_entry * eh;
2147 struct tilegx_elf_dyn_relocs *p;
2148 bfd *dynobj;
5474d94f 2149 asection *s, *srel;
aa137e4d
NC		 2150
2151 htab = tilegx_elf_hash_table (info);
2152 BFD_ASSERT (htab != NULL);
2153
2154 dynobj = htab->elf.dynobj;
2155
2156 /* Make sure we know what is going on here. */
2157 BFD_ASSERT (dynobj != NULL
2158 && (h->needs_plt
2159 || h->u.weakdef != NULL
2160 || (h->def_dynamic
2161 && h->ref_regular
2162 && !h->def_regular)));
2163
2164 /* If this is a function, put it in the procedure linkage table. We
2165 will fill in the contents of the procedure linkage table later
2166 (although we could actually do it here). */
2167 if (h->type == STT_FUNC || h->needs_plt)
2168 {
2169 if (h->plt.refcount <= 0
2170 || SYMBOL_CALLS_LOCAL (info, h)
2171 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2172 && h->root.type == bfd_link_hash_undefweak))
2173 {
2174 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2175 reloc in an input file, but the symbol was never referred
2176 to by a dynamic object, or if all references were garbage
2177 collected. In such a case, we don't actually need to build
2178 a procedure linkage table, and we can just do a
2179 R_TILEGX_JUMPOFF_X1 relocation instead. */
2180 h->plt.offset = (bfd_vma) -1;
2181 h->needs_plt = 0;
2182 }
2183
2184 return TRUE;
2185 }
2186 else
2187 h->plt.offset = (bfd_vma) -1;
2188
2189 /* If this is a weak symbol, and there is a real definition, the
2190 processor independent code will have arranged for us to see the
2191 real definition first, and we can just use the same value. */
2192 if (h->u.weakdef != NULL)
2193 {
2194 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2195 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2196 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2197 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2198 return TRUE;
2199 }
2200
2201 /* This is a reference to a symbol defined by a dynamic object which
2202 is not a function. */
2203
2204 /* If we are creating a shared library, we must presume that the
2205 only references to the symbol are via the global offset table.
2206 For such cases we need not do anything here; the relocations will
2207 be handled correctly by relocate_section. */
0e1862bb 2208 if (bfd_link_pic (info))
aa137e4d
NC		 2209 return TRUE;
2210
2211 /* If there are no references to this symbol that do not use the
2212 GOT, we don't need to generate a copy reloc. */
2213 if (!h->non_got_ref)
2214 return TRUE;
2215
2216 /* If -z nocopyreloc was given, we won't generate them either. */
2217 if (info->nocopyreloc)
2218 {
2219 h->non_got_ref = 0;
2220 return TRUE;
2221 }
2222
2223 eh = (struct tilegx_elf_link_hash_entry *) h;
2224 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2225 {
2226 s = p->sec->output_section;
2227 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2228 break;
2229 }
2230
2231 /* If we didn't find any dynamic relocs in read-only sections, then
2232 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2233 if (p == NULL)
2234 {
2235 h->non_got_ref = 0;
2236 return TRUE;
2237 }
2238
aa137e4d
NC		 2239 /* We must allocate the symbol in our .dynbss section, which will
2240 become part of the .bss section of the executable. There will be
2241 an entry for this symbol in the .dynsym section. The dynamic
2242 object will contain position independent code, so all references
2243 from the dynamic object to this symbol will go through the global
2244 offset table. The dynamic linker will use the .dynsym entry to
2245 determine the address it must put in the global offset table, so
2246 both the dynamic object and the regular object will refer to the
2247 same memory location for the variable. */
2248
2249 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2250 to copy the initial value out of the dynamic object and into the
2251 runtime process image. We need to remember the offset into the
2252 .rel.bss section we are going to use. */
5474d94f
AM		 2253 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2254 {
2255 s = htab->elf.sdynrelro;
2256 srel = htab->elf.sreldynrelro;
2257 }
2258 else
2259 {
2260 s = htab->elf.sdynbss;
2261 srel = htab->elf.srelbss;
2262 }
1d7e9d18 2263 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
aa137e4d 2264 {
5474d94f 2265 srel->size += TILEGX_ELF_RELA_BYTES (htab);
aa137e4d
NC		 2266 h->needs_copy = 1;
2267 }
2268
5474d94f 2269 return _bfd_elf_adjust_dynamic_copy (info, h, s);
aa137e4d
NC		 2270}
2271
2272/* Allocate space in .plt, .got and associated reloc sections for
2273 dynamic relocs. */
2274
2275static bfd_boolean
e4d34ace 2276allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2277{
2278 struct bfd_link_info *info;
2279 struct tilegx_elf_link_hash_table *htab;
2280 struct tilegx_elf_link_hash_entry *eh;
2281 struct tilegx_elf_dyn_relocs *p;
2282
2283 if (h->root.type == bfd_link_hash_indirect)
2284 return TRUE;
2285
aa137e4d
NC		 2286 info = (struct bfd_link_info *) inf;
2287 htab = tilegx_elf_hash_table (info);
2288 BFD_ASSERT (htab != NULL);
2289
2290 if (htab->elf.dynamic_sections_created
2291 && h->plt.refcount > 0)
2292 {
2293 /* Make sure this symbol is output as a dynamic symbol.
2294 Undefined weak syms won't yet be marked as dynamic. */
2295 if (h->dynindx == -1
2296 && !h->forced_local)
2297 {
2298 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2299 return FALSE;
2300 }
2301
0e1862bb 2302 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
aa137e4d
NC		 2303 {
2304 asection *s = htab->elf.splt;
2305
2306 /* Allocate room for the header and tail. */
2307 if (s->size == 0)
2308 {
663b5850 2309 s->size = PLT_ENTRY_SIZE;
aa137e4d
NC		 2310 }
2311
663b5850 2312 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
aa137e4d
NC		 2313
2314 /* If this symbol is not defined in a regular file, and we are
2315 not generating a shared library, then set the symbol to this
2316 location in the .plt. This is required to make function
2317 pointers compare as equal between the normal executable and
2318 the shared library. */
0e1862bb 2319 if (! bfd_link_pic (info)
aa137e4d
NC		 2320 && !h->def_regular)
2321 {
2322 h->root.u.def.section = s;
2323 h->root.u.def.value = h->plt.offset;
2324 }
2325
2326 /* Make room for this entry. */
2327 s->size += PLT_ENTRY_SIZE;
2328
2329 /* We also need to make an entry in the .got.plt section. */
2330 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2331
2332 /* We also need to make an entry in the .rela.plt section. */
2333 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2334 }
2335 else
2336 {
2337 h->plt.offset = (bfd_vma) -1;
2338 h->needs_plt = 0;
2339 }
2340 }
2341 else
2342 {
2343 h->plt.offset = (bfd_vma) -1;
2344 h->needs_plt = 0;
2345 }
2346
6f7be959
WL		 2347 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2348 requiring no TLS entry. */
2349 if (h->got.refcount > 0
2350 && !htab->disable_le_transition
0e1862bb 2351 && !bfd_link_pic (info)
6f7be959
WL		 2352 && h->dynindx == -1
2353 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2354 h->got.offset = (bfd_vma) -1;
2355 else if (h->got.refcount > 0)
aa137e4d
NC		 2356 {
2357 asection *s;
2358 bfd_boolean dyn;
2359 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2360
2361 /* Make sure this symbol is output as a dynamic symbol.
2362 Undefined weak syms won't yet be marked as dynamic. */
2363 if (h->dynindx == -1
2364 && !h->forced_local)
2365 {
2366 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2367 return FALSE;
2368 }
2369
2370 s = htab->elf.sgot;
2371 h->got.offset = s->size;
2372 s->size += TILEGX_ELF_WORD_BYTES (htab);
2373 /* TLS_GD entries need 2 consecutive GOT slots. */
2374 if (tls_type == GOT_TLS_GD)
2375 s->size += TILEGX_ELF_WORD_BYTES (htab);
2376 dyn = htab->elf.dynamic_sections_created;
2377 /* TLS_IE needs one dynamic relocation,
2378 TLS_GD needs two if local symbol and two if global. */
2379 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2380 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
0e1862bb
L		 2381 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2382 bfd_link_pic (info),
2383 h))
aa137e4d
NC		 2384 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2385 }
2386 else
2387 h->got.offset = (bfd_vma) -1;
2388
2389 eh = (struct tilegx_elf_link_hash_entry *) h;
2390 if (eh->dyn_relocs == NULL)
2391 return TRUE;
2392
2393 /* In the shared -Bsymbolic case, discard space allocated for
2394 dynamic pc-relative relocs against symbols which turn out to be
2395 defined in regular objects. For the normal shared case, discard
2396 space for pc-relative relocs that have become local due to symbol
2397 visibility changes. */
2398
0e1862bb 2399 if (bfd_link_pic (info))
aa137e4d
NC		 2400 {
2401 if (SYMBOL_CALLS_LOCAL (info, h))
2402 {
2403 struct tilegx_elf_dyn_relocs **pp;
2404
2405 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2406 {
2407 p->count -= p->pc_count;
2408 p->pc_count = 0;
2409 if (p->count == 0)
2410 *pp = p->next;
2411 else
2412 pp = &p->next;
2413 }
2414 }
2415
2416 /* Also discard relocs on undefined weak syms with non-default
2417 visibility. */
2418 if (eh->dyn_relocs != NULL
2419 && h->root.type == bfd_link_hash_undefweak)
2420 {
a3cd202a
L		 2421 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2422 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
aa137e4d
NC		 2423 eh->dyn_relocs = NULL;
2424
2425 /* Make sure undefined weak symbols are output as a dynamic
2426 symbol in PIEs. */
2427 else if (h->dynindx == -1
2428 && !h->forced_local)
2429 {
2430 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2431 return FALSE;
2432 }
2433 }
2434 }
2435 else
2436 {
2437 /* For the non-shared case, discard space for relocs against
2438 symbols which turn out to need copy relocs or are not
2439 dynamic. */
2440
2441 if (!h->non_got_ref
2442 && ((h->def_dynamic
2443 && !h->def_regular)
2444 || (htab->elf.dynamic_sections_created
2445 && (h->root.type == bfd_link_hash_undefweak
2446 || h->root.type == bfd_link_hash_undefined))))
2447 {
2448 /* Make sure this symbol is output as a dynamic symbol.
2449 Undefined weak syms won't yet be marked as dynamic. */
2450 if (h->dynindx == -1
2451 && !h->forced_local)
2452 {
2453 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2454 return FALSE;
2455 }
2456
2457 /* If that succeeded, we know we'll be keeping all the
2458 relocs. */
2459 if (h->dynindx != -1)
2460 goto keep;
2461 }
2462
2463 eh->dyn_relocs = NULL;
2464
2465 keep: ;
2466 }
2467
2468 /* Finally, allocate space. */
2469 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2470 {
2471 asection *sreloc = elf_section_data (p->sec)->sreloc;
2472 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2473 }
2474
2475 return TRUE;
2476}
2477
2478/* Find any dynamic relocs that apply to read-only sections. */
2479
2480static bfd_boolean
e4d34ace 2481readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2482{
2483 struct tilegx_elf_link_hash_entry *eh;
2484 struct tilegx_elf_dyn_relocs *p;
2485
aa137e4d
NC		 2486 eh = (struct tilegx_elf_link_hash_entry *) h;
2487 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2488 {
2489 asection *s = p->sec->output_section;
2490
2491 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2492 {
2493 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2494
2495 info->flags |= DF_TEXTREL;
2496
007873f5
L		 2497 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2498 p->sec->owner, p->sec);
2499
aa137e4d
NC		 2500 /* Not an error, just cut short the traversal. */
2501 return FALSE;
2502 }
2503 }
2504 return TRUE;
2505}
2506
2507/* Return true if the dynamic symbol for a given section should be
2508 omitted when creating a shared library. */
2509
2510bfd_boolean
2511tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2512 struct bfd_link_info *info,
2513 asection *p)
2514{
2515 /* We keep the .got section symbol so that explicit relocations
2516 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2517 can be turned into relocations against the .got symbol. */
2518 if (strcmp (p->name, ".got") == 0)
2519 return FALSE;
2520
2521 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2522}
2523
2524bfd_boolean
2525tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2526 struct bfd_link_info *info)
2527{
2528 struct tilegx_elf_link_hash_table *htab;
2529 bfd *dynobj;
2530 asection *s;
2531 bfd *ibfd;
2532
2533 htab = tilegx_elf_hash_table (info);
2534 BFD_ASSERT (htab != NULL);
2535 dynobj = htab->elf.dynobj;
2536 BFD_ASSERT (dynobj != NULL);
2537
2538 if (elf_hash_table (info)->dynamic_sections_created)
2539 {
2540 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2541 if (bfd_link_executable (info) && !info->nointerp)
aa137e4d 2542 {
3d4d4302 2543 s = bfd_get_linker_section (dynobj, ".interp");
aa137e4d
NC		 2544 BFD_ASSERT (s != NULL);
2545 s->size = strlen (htab->dynamic_interpreter) + 1;
2546 s->contents = (unsigned char *) htab->dynamic_interpreter;
2547 }
2548 }
2549
2550 /* Set up .got offsets for local syms, and space for local dynamic
2551 relocs. */
c72f2fb2 2552 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
aa137e4d
NC		 2553 {
2554 bfd_signed_vma *local_got;
2555 bfd_signed_vma *end_local_got;
2556 char *local_tls_type;
2557 bfd_size_type locsymcount;
2558 Elf_Internal_Shdr *symtab_hdr;
2559 asection *srel;
2560
2561 if (! is_tilegx_elf (ibfd))
2562 continue;
2563
2564 for (s = ibfd->sections; s != NULL; s = s->next)
2565 {
2566 struct tilegx_elf_dyn_relocs *p;
2567
2568 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2569 {
2570 if (!bfd_is_abs_section (p->sec)
2571 && bfd_is_abs_section (p->sec->output_section))
2572 {
2573 /* Input section has been discarded, either because
2574 it is a copy of a linkonce section or due to
2575 linker script /DISCARD/, so we'll be discarding
2576 the relocs too. */
2577 }
2578 else if (p->count != 0)
2579 {
2580 srel = elf_section_data (p->sec)->sreloc;
2581 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2582 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
007873f5
L		 2583 {
2584 info->flags |= DF_TEXTREL;
2585
2586 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2587 p->sec->owner, p->sec);
2588 }
aa137e4d
NC		 2589 }
2590 }
2591 }
2592
2593 local_got = elf_local_got_refcounts (ibfd);
2594 if (!local_got)
2595 continue;
2596
2597 symtab_hdr = &elf_symtab_hdr (ibfd);
2598 locsymcount = symtab_hdr->sh_info;
2599 end_local_got = local_got + locsymcount;
2600 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2601 s = htab->elf.sgot;
2602 srel = htab->elf.srelgot;
2603 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2604 {
2605 if (*local_got > 0)
2606 {
2607 *local_got = s->size;
2608 s->size += TILEGX_ELF_WORD_BYTES (htab);
2609 if (*local_tls_type == GOT_TLS_GD)
2610 s->size += TILEGX_ELF_WORD_BYTES (htab);
0e1862bb 2611 if (bfd_link_pic (info)
aa137e4d
NC		 2612 || *local_tls_type == GOT_TLS_GD
2613 || *local_tls_type == GOT_TLS_IE)
2614 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2615 }
2616 else
2617 *local_got = (bfd_vma) -1;
2618 }
2619 }
2620
2621 /* Allocate global sym .plt and .got entries, and space for global
2622 sym dynamic relocs. */
e4d34ace 2623 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
aa137e4d
NC		 2624
2625 if (elf_hash_table (info)->dynamic_sections_created)
2626 {
2627 /* If the .got section is more than 0x8000 bytes, we add
2628 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2629 bit relocations have a greater chance of working. */
2630 if (htab->elf.sgot->size >= 0x8000
2631 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2632 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2633 }
2634
2635 if (htab->elf.sgotplt)
2636 {
2637 struct elf_link_hash_entry *got;
2638 got = elf_link_hash_lookup (elf_hash_table (info),
2639 "_GLOBAL_OFFSET_TABLE_",
2640 FALSE, FALSE, FALSE);
2641
2642 /* Don't allocate .got.plt section if there are no GOT nor PLT
2643 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2644 if ((got == NULL
2645 || !got->ref_regular_nonweak)
2646 && (htab->elf.sgotplt->size
2647 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2648 && (htab->elf.splt == NULL
2649 || htab->elf.splt->size == 0)
2650 && (htab->elf.sgot == NULL
2651 || (htab->elf.sgot->size
2652 == get_elf_backend_data (output_bfd)->got_header_size)))
2653 htab->elf.sgotplt->size = 0;
2654 }
2655
2656 /* The check_relocs and adjust_dynamic_symbol entry points have
2657 determined the sizes of the various dynamic sections. Allocate
2658 memory for them. */
2659 for (s = dynobj->sections; s != NULL; s = s->next)
2660 {
2661 if ((s->flags & SEC_LINKER_CREATED) == 0)
2662 continue;
2663
2664 if (s == htab->elf.splt
2665 || s == htab->elf.sgot
2666 || s == htab->elf.sgotplt
5474d94f
AM		 2667 || s == htab->elf.sdynbss
2668 || s == htab->elf.sdynrelro)
aa137e4d
NC		 2669 {
2670 /* Strip this section if we don't need it; see the
2671 comment below. */
2672 }
2673 else if (strncmp (s->name, ".rela", 5) == 0)
2674 {
2675 if (s->size != 0)
2676 {
2677 /* We use the reloc_count field as a counter if we need
2678 to copy relocs into the output file. */
2679 s->reloc_count = 0;
2680 }
2681 }
2682 else
2683 {
2684 /* It's not one of our sections. */
2685 continue;
2686 }
2687
2688 if (s->size == 0)
2689 {
2690 /* If we don't need this section, strip it from the
2691 output file. This is mostly to handle .rela.bss and
2692 .rela.plt. We must create both sections in
2693 create_dynamic_sections, because they must be created
2694 before the linker maps input sections to output
2695 sections. The linker does that before
2696 adjust_dynamic_symbol is called, and it is that
2697 function which decides whether anything needs to go
2698 into these sections. */
2699 s->flags |= SEC_EXCLUDE;
2700 continue;
2701 }
2702
2703 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2704 continue;
2705
2706 /* Allocate memory for the section contents. Zero the memory
2707 for the benefit of .rela.plt, which has 4 unused entries
2708 at the beginning, and we don't want garbage. */
2709 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2710 if (s->contents == NULL)
2711 return FALSE;
2712 }
2713
2714 if (elf_hash_table (info)->dynamic_sections_created)
2715 {
2716 /* Add some entries to the .dynamic section. We fill in the
2717 values later, in tilegx_elf_finish_dynamic_sections, but we
2718 must add the entries now so that we get the correct size for
2719 the .dynamic section. The DT_DEBUG entry is filled in by the
2720 dynamic linker and used by the debugger. */
2721#define add_dynamic_entry(TAG, VAL) \
2722 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2723
0e1862bb 2724 if (bfd_link_executable (info))
aa137e4d
NC		 2725 {
2726 if (!add_dynamic_entry (DT_DEBUG, 0))
2727 return FALSE;
2728 }
2729
2730 if (htab->elf.srelplt->size != 0)
2731 {
2732 if (!add_dynamic_entry (DT_PLTGOT, 0)
2733 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2734 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2735 || !add_dynamic_entry (DT_JMPREL, 0))
2736 return FALSE;
2737 }
2738
2739 if (!add_dynamic_entry (DT_RELA, 0)
2740 || !add_dynamic_entry (DT_RELASZ, 0)
2741 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2742 return FALSE;
2743
2744 /* If any dynamic relocs apply to a read-only section,
2745 then we need a DT_TEXTREL entry. */
2746 if ((info->flags & DF_TEXTREL) == 0)
e4d34ace 2747 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
aa137e4d
NC		 2748
2749 if (info->flags & DF_TEXTREL)
2750 {
2751 if (!add_dynamic_entry (DT_TEXTREL, 0))
2752 return FALSE;
2753 }
2754 }
2755#undef add_dynamic_entry
2756
2757 return TRUE;
2758}
2759\f
2760/* Return the base VMA address which should be subtracted from real addresses
2761 when resolving @dtpoff relocation.
2762 This is PT_TLS segment p_vaddr. */
2763
2764static bfd_vma
2765dtpoff_base (struct bfd_link_info *info)
2766{
2767 /* If tls_sec is NULL, we should have signalled an error already. */
2768 if (elf_hash_table (info)->tls_sec == NULL)
2769 return 0;
2770 return elf_hash_table (info)->tls_sec->vma;
2771}
2772
2773/* Return the relocation value for @tpoff relocation. */
2774
2775static bfd_vma
2776tpoff (struct bfd_link_info *info, bfd_vma address)
2777{
2778 struct elf_link_hash_table *htab = elf_hash_table (info);
2779
2780 /* If tls_sec is NULL, we should have signalled an error already. */
2781 if (htab->tls_sec == NULL)
2782 return 0;
2783
2784 return (address - htab->tls_sec->vma);
2785}
2786
6f7be959
WL		 2787/* Copy SIZE bits from FROM to TO at address ADDR. */
2788
2789static void
2790tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2791{
2792 int i;
2793 for (i = 0; i < size; i++)
2794 {
2795 int from_byte = (from + i) / 8;
2796 int from_bit = (from + i) % 8;
2797 int to_byte = (to + i) / 8;
2798 int to_bit = (to + i) % 8;
2799 bfd_byte to_mask = 1 << to_bit;
2800 addr[to_byte] = (addr[to_byte] & ~to_mask)
2801 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2802 }
2803}
2804
2805/* Replace the MASK bits in ADDR with those in INSN, for the next
2806 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2807
2808static void
2809tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2810 const bfd_byte *insn)
2811{
2812 int i;
2813 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2814 {
2815 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2816 }
2817}
2818
2819/* Mask to extract the bits corresponding to an instruction in a
2820 specific pipe of a bundle. */
2821static const bfd_byte insn_mask_X1[] = {
2822 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2823};
2824
2825/* Mask to extract the bits corresponding to an instruction in a
2826 specific pipe of a bundle, minus the destination operand and the
2827 first source operand. */
68ffbac6 2828static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
6f7be959
WL		 2829 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2830};
2831
2832static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2833 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2834};
2835
2836static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2837 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2838};
2839static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2840 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2841};
2842
2843/* Mask to extract the bits corresponding to an instruction in a
2844 specific pipe of a bundle, minus the register operands. */
2845static const bfd_byte insn_mask_X0_no_operand[] = {
2846 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2847};
2848
2849static const bfd_byte insn_mask_X1_no_operand[] = {
2850 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2851};
2852
2853static const bfd_byte insn_mask_Y0_no_operand[] = {
2854 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2855};
2856
2857static const bfd_byte insn_mask_Y1_no_operand[] = {
2858 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2859};
2860
2861/* Various instructions synthesized to support tls references. */
2862
2863/* ld r0, r0 in the X1 pipe, used for tls ie. */
2864static const bfd_byte insn_tls_ie_ld_X1[] = {
2865 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2866};
2867
2868/* ld4s r0, r0 in the X1 pipe, used for tls ie. */
2869static const bfd_byte insn_tls_ie_ld4s_X1[] = {
2870 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
2871};
2872
2873/* add r0, r0, tp in various pipes, used for tls ie. */
2874static const bfd_byte insn_tls_ie_add_X0X1[] = {
2875 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
2876};
2877static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2878 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
2879};
2880
2881/* addx r0, r0, tp in various pipes, used for tls ie. */
2882static const bfd_byte insn_tls_ie_addx_X0X1[] = {
2883 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
2884};
2885static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
2886 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
2887};
2888
2889/* move r0, r0 in various pipes, used for tls gd. */
2890static const bfd_byte insn_tls_gd_add_X0X1[] = {
2891 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
2892};
2893static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2894 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
2895};
2896
2897static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
2898static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
2899
2900static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
2901static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
2902
2903static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
2904static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
2905
aa137e4d
NC		 2906/* Relocate an TILEGX ELF section.
2907
2908 The RELOCATE_SECTION function is called by the new ELF backend linker
2909 to handle the relocations for a section.
2910
2911 The relocs are always passed as Rela structures.
2912
2913 This function is responsible for adjusting the section contents as
2914 necessary, and (if generating a relocatable output file) adjusting
2915 the reloc addend as necessary.
2916
2917 This function does not have to worry about setting the reloc
2918 address or the reloc symbol index.
2919
2920 LOCAL_SYMS is a pointer to the swapped in local symbols.
2921
2922 LOCAL_SECTIONS is an array giving the section in the input file
2923 corresponding to the st_shndx field of each local symbol.
2924
2925 The global hash table entry for the global symbols can be found
2926 via elf_sym_hashes (input_bfd).
2927
2928 When generating relocatable output, this function must handle
2929 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2930 going to be the section symbol corresponding to the output
2931 section, which means that the addend must be adjusted
2932 accordingly. */
2933
2934bfd_boolean
2935tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2936 bfd *input_bfd, asection *input_section,
2937 bfd_byte *contents, Elf_Internal_Rela *relocs,
2938 Elf_Internal_Sym *local_syms,
2939 asection **local_sections)
2940{
2941 struct tilegx_elf_link_hash_table *htab;
2942 Elf_Internal_Shdr *symtab_hdr;
2943 struct elf_link_hash_entry **sym_hashes;
2944 bfd_vma *local_got_offsets;
535127d2 2945 bfd_vma got_base;
aa137e4d
NC		 2946 asection *sreloc;
2947 Elf_Internal_Rela *rel;
2948 Elf_Internal_Rela *relend;
2949 int num_relocs;
2950
2951 htab = tilegx_elf_hash_table (info);
2952 BFD_ASSERT (htab != NULL);
2953 symtab_hdr = &elf_symtab_hdr (input_bfd);
2954 sym_hashes = elf_sym_hashes (input_bfd);
2955 local_got_offsets = elf_local_got_offsets (input_bfd);
2956
535127d2
WL		 2957 if (elf_hash_table (info)->hgot == NULL)
2958 got_base = 0;
2959 else
2960 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2961
aa137e4d
NC		 2962 sreloc = elf_section_data (input_section)->sreloc;
2963
2964 rel = relocs;
2965 num_relocs = input_section->reloc_count;
2966 relend = relocs + num_relocs;
2967 for (; rel < relend; rel++)
2968 {
2969 int r_type, tls_type;
6f7be959 2970 bfd_boolean is_tls_iele, is_tls_le;
aa137e4d
NC		 2971 reloc_howto_type *howto;
2972 unsigned long r_symndx;
2973 struct elf_link_hash_entry *h;
2974 Elf_Internal_Sym *sym;
2975 tilegx_create_func create_func;
2976 asection *sec;
2977 bfd_vma relocation;
2978 bfd_reloc_status_type r;
2979 const char *name;
2980 bfd_vma off;
2981 bfd_boolean is_plt = FALSE;
a3cd202a 2982 bfd_boolean resolved_to_zero;
aa137e4d
NC		 2983 bfd_boolean unresolved_reloc;
2984
2985 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2986 if (r_type == R_TILEGX_GNU_VTINHERIT
2987 || r_type == R_TILEGX_GNU_VTENTRY)
2988 continue;
2989
2990 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
47aeb64c 2991 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
aa137e4d
NC		 2992
2993 howto = tilegx_elf_howto_table + r_type;
2994
2995 /* This is a final link. */
2996 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2997 h = NULL;
2998 sym = NULL;
2999 sec = NULL;
3000 unresolved_reloc = FALSE;
3001 if (r_symndx < symtab_hdr->sh_info)
3002 {
3003 sym = local_syms + r_symndx;
3004 sec = local_sections[r_symndx];
3005 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3006 }
3007 else
3008 {
62d887d4
L		 3009 bfd_boolean warned ATTRIBUTE_UNUSED;
3010 bfd_boolean ignored ATTRIBUTE_UNUSED;
aa137e4d
NC		 3011
3012 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3013 r_symndx, symtab_hdr, sym_hashes,
3014 h, sec, relocation,
62d887d4 3015 unresolved_reloc, warned, ignored);
aa137e4d
NC		 3016 if (warned)
3017 {
3018 /* To avoid generating warning messages about truncated
3019 relocations, set the relocation's address to be the same as
3020 the start of this section. */
3021 if (input_section->output_section != NULL)
3022 relocation = input_section->output_section->vma;
3023 else
3024 relocation = 0;
3025 }
3026 }
3027
dbaa2011 3028 if (sec != NULL && discarded_section (sec))
aa137e4d 3029 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3030 rel, 1, relend, howto, 0, contents);
aa137e4d 3031
0e1862bb 3032 if (bfd_link_relocatable (info))
aa137e4d
NC		 3033 continue;
3034
3035 if (h != NULL)
3036 name = h->root.root.string;
3037 else
3038 {
3039 name = (bfd_elf_string_from_elf_section
3040 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3041 if (name == NULL || *name == '\0')
3042 name = bfd_section_name (input_bfd, sec);
3043 }
3044
6f7be959
WL		 3045 switch (r_type)
3046 {
3047 case R_TILEGX_TLS_GD_CALL:
3048 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3049 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3050 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3051 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3052 case R_TILEGX_IMM8_X0_TLS_ADD:
3053 case R_TILEGX_IMM8_Y0_TLS_ADD:
3054 case R_TILEGX_IMM8_X1_TLS_ADD:
3055 case R_TILEGX_IMM8_Y1_TLS_ADD:
3056 tls_type = GOT_UNKNOWN;
3057 if (h == NULL && local_got_offsets)
3058 tls_type =
3059 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3060 else if (h != NULL)
3061 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3062
0e1862bb 3063 is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
6f7be959 3064 is_tls_le = is_tls_iele && (!input_section->sec_flg0
0e1862bb 3065 && !bfd_link_pic (info)
6f7be959
WL		 3066 && (h == NULL || h->dynindx == -1));
3067
3068 if (r_type == R_TILEGX_TLS_GD_CALL)
3069 {
3070 if (is_tls_le)
3071 {
3072 /* GD -> LE */
3073 tilegx_replace_insn (contents + rel->r_offset,
3074 insn_mask_X1, insn_move_X0X1);
3075 continue;
3076 }
3077 else if (is_tls_iele)
3078 {
3079 /* GD -> IE */
3080 if (ABI_64_P (output_bfd))
3081 tilegx_replace_insn (contents + rel->r_offset,
3082 insn_mask_X1, insn_tls_ie_ld_X1);
3083 else
3084 tilegx_replace_insn (contents + rel->r_offset,
3085 insn_mask_X1, insn_tls_ie_ld4s_X1);
3086 continue;
3087 }
3088
3089 /* GD -> GD */
3090 h = (struct elf_link_hash_entry *)
3091 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3092 FALSE, TRUE);
3093 BFD_ASSERT (h != NULL);
3094 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3095 howto = tilegx_elf_howto_table + r_type;
3096 }
3097 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3098 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3099 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3100 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3101 {
3102 bfd_boolean is_pipe0 =
3103 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3104 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3105 bfd_boolean is_X0X1 =
3106 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3107 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3108 int dest_begin = is_pipe0 ? 0 : 31;
3109 int src_begin;
3110 const bfd_byte *insn;
84abc003 3111 const bfd_byte *mask = NULL;
6f7be959
WL		 3112
3113 if (is_tls_le)
3114 {
3115 /* 1. copy dest operand into the first source operand.
3116 2. change the opcode to "move". */
3117 src_begin = is_pipe0 ? 6 : 37;
3118 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3119
3120 switch (r_type)
3121 {
3122 case R_TILEGX_IMM8_X0_TLS_ADD:
3123 mask = insn_mask_X0_no_dest_no_srca;
3124 break;
3125 case R_TILEGX_IMM8_X1_TLS_ADD:
3126 mask = insn_mask_X1_no_dest_no_srca;
3127 break;
3128 case R_TILEGX_IMM8_Y0_TLS_ADD:
3129 mask = insn_mask_Y0_no_dest_no_srca;
3130 break;
3131 case R_TILEGX_IMM8_Y1_TLS_ADD:
3132 mask = insn_mask_Y1_no_dest_no_srca;
3133 break;
3134 }
3135 }
3136 else
3137 {
3138 /* 1. copy dest operand into the second source operand.
3139 2. change the opcode to "add". */
3140 src_begin = is_pipe0 ? 12 : 43;
3141 if (ABI_64_P (output_bfd))
3142 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3143 else
3144 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3145
3146 switch (r_type)
3147 {
3148 case R_TILEGX_IMM8_X0_TLS_ADD:
3149 mask = insn_mask_X0_no_operand;
3150 break;
3151 case R_TILEGX_IMM8_X1_TLS_ADD:
3152 mask = insn_mask_X1_no_operand;
3153 break;
3154 case R_TILEGX_IMM8_Y0_TLS_ADD:
3155 mask = insn_mask_Y0_no_operand;
3156 break;
3157 case R_TILEGX_IMM8_Y1_TLS_ADD:
3158 mask = insn_mask_Y1_no_operand;
3159 break;
3160 }
3161 }
3162
3163 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3164 src_begin, 6);
3165 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3166
3167 continue;
3168 }
3169 else
3170 {
3171 const bfd_byte *mask = NULL;
3172 const bfd_byte *add_insn = NULL;
3173 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3174
3175 switch (r_type)
3176 {
3177 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3178 add_insn = is_tls_iele
3179 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3180 : insn_tls_gd_add_X0X1;
3181 mask = insn_mask_X0_no_dest_no_srca;
3182 break;
3183 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3184 add_insn = is_tls_iele
3185 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3186 : insn_tls_gd_add_X0X1;
3187 mask = insn_mask_X1_no_dest_no_srca;
3188 break;
3189 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3190 add_insn = is_tls_iele
3191 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3192 : insn_tls_gd_add_Y0Y1;
3193 mask = insn_mask_Y0_no_dest_no_srca;
3194 break;
3195 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3196 add_insn = is_tls_iele
3197 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3198 : insn_tls_gd_add_Y0Y1;
3199 mask = insn_mask_Y1_no_dest_no_srca;
3200 break;
3201 }
3202
3203 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3204
3205 continue;
3206 }
3207 break;
3208 case R_TILEGX_TLS_IE_LOAD:
3209 if (!input_section->sec_flg0
0e1862bb 3210 && !bfd_link_pic (info)
6f7be959
WL		 3211 && (h == NULL || h->dynindx == -1))
3212 {
3213 /* IE -> LE */
3214 tilegx_replace_insn (contents + rel->r_offset,
3215 insn_mask_X1_no_dest_no_srca,
3216 insn_move_X0X1);
3217 }
3218 else
3219 {
3220 /* IE -> IE */
3221 if (ABI_64_P (output_bfd))
3222 tilegx_replace_insn (contents + rel->r_offset,
3223 insn_mask_X1_no_dest_no_srca,
3224 insn_tls_ie_ld_X1);
3225 else
3226 tilegx_replace_insn (contents + rel->r_offset,
3227 insn_mask_X1_no_dest_no_srca,
3228 insn_tls_ie_ld4s_X1);
3229 }
3230 continue;
3231 break;
3232 default:
3233 break;
3234 }
3235
a3cd202a
L		 3236 resolved_to_zero = (h != NULL
3237 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
3238
aa137e4d
NC		 3239 switch (r_type)
3240 {
3241 case R_TILEGX_IMM16_X0_HW0_GOT:
3242 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 3243 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3244 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3245 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3246 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 3247 /* Relocation is to the entry for this symbol in the global
3248 offset table. */
3249 if (htab->elf.sgot == NULL)
3250 abort ();
3251
3252 if (h != NULL)
3253 {
3254 bfd_boolean dyn;
3255
3256 off = h->got.offset;
3257 BFD_ASSERT (off != (bfd_vma) -1);
3258 dyn = elf_hash_table (info)->dynamic_sections_created;
3259
0e1862bb
L		 3260 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3261 bfd_link_pic (info),
3262 h)
3263 || (bfd_link_pic (info)
aa137e4d
NC		 3264 && SYMBOL_REFERENCES_LOCAL (info, h)))
3265 {
3266 /* This is actually a static link, or it is a
3267 -Bsymbolic link and the symbol is defined
3268 locally, or the symbol was forced to be local
3269 because of a version file. We must initialize
3270 this entry in the global offset table. Since the
3271 offset must always be a multiple
3272 of 8 for 64-bit, we use the least significant bit
3273 to record whether we have initialized it already.
3274
3275 When doing a dynamic link, we create a .rela.got
3276 relocation entry to initialize the value. This
3277 is done in the finish_dynamic_symbol routine. */
3278 if ((off & 1) != 0)
3279 off &= ~1;
3280 else
3281 {
3282 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3283 htab->elf.sgot->contents + off);
3284 h->got.offset |= 1;
3285 }
3286 }
3287 else
3288 unresolved_reloc = FALSE;
3289 }
3290 else
3291 {
3292 BFD_ASSERT (local_got_offsets != NULL
3293 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3294
3295 off = local_got_offsets[r_symndx];
3296
3297 /* The offset must always be a multiple of 8 on 64-bit.
3298 We use the least significant bit to record
3299 whether we have already processed this entry. */
3300 if ((off & 1) != 0)
3301 off &= ~1;
3302 else
3303 {
0e1862bb 3304 if (bfd_link_pic (info))
aa137e4d
NC		 3305 {
3306 asection *s;
3307 Elf_Internal_Rela outrel;
3308
3309 /* We need to generate a R_TILEGX_RELATIVE reloc
3310 for the dynamic linker. */
3311 s = htab->elf.srelgot;
3312 BFD_ASSERT (s != NULL);
3313
3314 outrel.r_offset = (htab->elf.sgot->output_section->vma
3315 + htab->elf.sgot->output_offset
3316 + off);
3317 outrel.r_info =
3318 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3319 outrel.r_addend = relocation;
3320 relocation = 0;
3321 tilegx_elf_append_rela (output_bfd, s, &outrel);
3322 }
3323
3324 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3325 htab->elf.sgot->contents + off);
3326 local_got_offsets[r_symndx] |= 1;
3327 }
3328 }
535127d2 3329 relocation = off - got_base;
aa137e4d
NC		 3330 break;
3331
3332 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 3333 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3334 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3335 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3336 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3337 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3338 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3339 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3340 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3341 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3342 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3343 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3344 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3345 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3346 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 3347 /* Relocation is to the entry for this symbol in the
3348 procedure linkage table. */
3349 BFD_ASSERT (h != NULL);
3350
3351 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3352 {
3353 /* We didn't make a PLT entry for this symbol. This
3354 happens when statically linking PIC code, or when
3355 using -Bsymbolic. */
3356 break;
3357 }
3358
3359 relocation = (htab->elf.splt->output_section->vma
3360 + htab->elf.splt->output_offset
3361 + h->plt.offset);
3362 unresolved_reloc = FALSE;
3363 break;
3364
3365 case R_TILEGX_64_PCREL:
3366 case R_TILEGX_32_PCREL:
3367 case R_TILEGX_16_PCREL:
3368 case R_TILEGX_8_PCREL:
3369 case R_TILEGX_IMM16_X0_HW0_PCREL:
3370 case R_TILEGX_IMM16_X1_HW0_PCREL:
3371 case R_TILEGX_IMM16_X0_HW1_PCREL:
3372 case R_TILEGX_IMM16_X1_HW1_PCREL:
3373 case R_TILEGX_IMM16_X0_HW2_PCREL:
3374 case R_TILEGX_IMM16_X1_HW2_PCREL:
3375 case R_TILEGX_IMM16_X0_HW3_PCREL:
3376 case R_TILEGX_IMM16_X1_HW3_PCREL:
3377 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3378 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3379 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3380 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3381 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3382 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3383 if (h != NULL
3384 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3385 break;
3386 /* Fall through. */
3387 case R_TILEGX_64:
3388 case R_TILEGX_32:
3389 case R_TILEGX_16:
3390 case R_TILEGX_8:
3391 case R_TILEGX_HW0:
3392 case R_TILEGX_HW1:
3393 case R_TILEGX_HW2:
3394 case R_TILEGX_HW3:
3395 case R_TILEGX_HW0_LAST:
3396 case R_TILEGX_HW1_LAST:
3397 case R_TILEGX_HW2_LAST:
3398 case R_TILEGX_COPY:
3399 case R_TILEGX_GLOB_DAT:
3400 case R_TILEGX_JMP_SLOT:
3401 case R_TILEGX_RELATIVE:
3402 case R_TILEGX_BROFF_X1:
3403 case R_TILEGX_JUMPOFF_X1:
3404 case R_TILEGX_IMM8_X0:
3405 case R_TILEGX_IMM8_Y0:
3406 case R_TILEGX_IMM8_X1:
3407 case R_TILEGX_IMM8_Y1:
3408 case R_TILEGX_DEST_IMM8_X1:
3409 case R_TILEGX_MT_IMM14_X1:
3410 case R_TILEGX_MF_IMM14_X1:
3411 case R_TILEGX_MMSTART_X0:
3412 case R_TILEGX_MMEND_X0:
3413 case R_TILEGX_SHAMT_X0:
3414 case R_TILEGX_SHAMT_X1:
3415 case R_TILEGX_SHAMT_Y0:
3416 case R_TILEGX_SHAMT_Y1:
3417 case R_TILEGX_IMM16_X0_HW0:
3418 case R_TILEGX_IMM16_X1_HW0:
3419 case R_TILEGX_IMM16_X0_HW1:
3420 case R_TILEGX_IMM16_X1_HW1:
3421 case R_TILEGX_IMM16_X0_HW2:
3422 case R_TILEGX_IMM16_X1_HW2:
3423 case R_TILEGX_IMM16_X0_HW3:
3424 case R_TILEGX_IMM16_X1_HW3:
3425 case R_TILEGX_IMM16_X0_HW0_LAST:
3426 case R_TILEGX_IMM16_X1_HW0_LAST:
3427 case R_TILEGX_IMM16_X0_HW1_LAST:
3428 case R_TILEGX_IMM16_X1_HW1_LAST:
3429 case R_TILEGX_IMM16_X0_HW2_LAST:
3430 case R_TILEGX_IMM16_X1_HW2_LAST:
3431 if ((input_section->flags & SEC_ALLOC) == 0)
3432 break;
3433
0e1862bb 3434 if ((bfd_link_pic (info)
aa137e4d 3435 && (h == NULL
a3cd202a
L		 3436 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3437 && !resolved_to_zero)
aa137e4d
NC		 3438 || h->root.type != bfd_link_hash_undefweak)
3439 && (! howto->pc_relative
3440 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3441 || (!bfd_link_pic (info)
aa137e4d
NC		 3442 && h != NULL
3443 && h->dynindx != -1
3444 && !h->non_got_ref
3445 && ((h->def_dynamic
3446 && !h->def_regular)
3447 || h->root.type == bfd_link_hash_undefweak
3448 || h->root.type == bfd_link_hash_undefined)))
3449 {
3450 Elf_Internal_Rela outrel;
3451 bfd_boolean skip, relocate = FALSE;
3452
3453 /* When generating a shared object, these relocations
3454 are copied into the output file to be resolved at run
3455 time. */
3456
3457 BFD_ASSERT (sreloc != NULL);
3458
3459 skip = FALSE;
3460
3461 outrel.r_offset =
3462 _bfd_elf_section_offset (output_bfd, info, input_section,
3463 rel->r_offset);
3464 if (outrel.r_offset == (bfd_vma) -1)
3465 skip = TRUE;
3466 else if (outrel.r_offset == (bfd_vma) -2)
3467 skip = TRUE, relocate = TRUE;
3468 outrel.r_offset += (input_section->output_section->vma
3469 + input_section->output_offset);
3470
3471 switch (r_type)
3472 {
3473 case R_TILEGX_64_PCREL:
3474 case R_TILEGX_32_PCREL:
3475 case R_TILEGX_16_PCREL:
3476 case R_TILEGX_8_PCREL:
3477 /* If the symbol is not dynamic, we should not keep
3478 a dynamic relocation. But an .rela.* slot has been
3479 allocated for it, output R_TILEGX_NONE.
3480 FIXME: Add code tracking needed dynamic relocs as
3481 e.g. i386 has. */
3482 if (h->dynindx == -1)
3483 skip = TRUE, relocate = TRUE;
3484 break;
3485 }
3486
3487 if (skip)
3488 memset (&outrel, 0, sizeof outrel);
3489 /* h->dynindx may be -1 if the symbol was marked to
3490 become local. */
3491 else if (h != NULL &&
3492 h->dynindx != -1
3493 && (! is_plt
0e1862bb 3494 || !bfd_link_pic (info)
aa137e4d
NC		 3495 || !SYMBOLIC_BIND (info, h)
3496 || !h->def_regular))
3497 {
3498 BFD_ASSERT (h->dynindx != -1);
3499 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3500 outrel.r_addend = rel->r_addend;
3501 }
3502 else
3503 {
3504 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3505 {
3506 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3507 R_TILEGX_RELATIVE);
3508 outrel.r_addend = relocation + rel->r_addend;
3509 }
3510 else
3511 {
3512 long indx;
3513
3514 outrel.r_addend = relocation + rel->r_addend;
3515
3516 if (is_plt)
3517 sec = htab->elf.splt;
3518
3519 if (bfd_is_abs_section (sec))
3520 indx = 0;
3521 else if (sec == NULL || sec->owner == NULL)
3522 {
3523 bfd_set_error (bfd_error_bad_value);
3524 return FALSE;
3525 }
3526 else
3527 {
3528 asection *osec;
3529
3530 /* We are turning this relocation into one
3531 against a section symbol. It would be
3532 proper to subtract the symbol's value,
3533 osec->vma, from the emitted reloc addend,
3534 but ld.so expects buggy relocs. */
3535 osec = sec->output_section;
3536 indx = elf_section_data (osec)->dynindx;
3537
3538 if (indx == 0)
3539 {
3540 osec = htab->elf.text_index_section;
3541 indx = elf_section_data (osec)->dynindx;
3542 }
3543
3544 /* FIXME: we really should be able to link non-pic
3545 shared libraries. */
3546 if (indx == 0)
3547 {
3548 BFD_FAIL ();
4eca0228 3549 _bfd_error_handler
aa137e4d
NC		 3550 (_("%B: probably compiled without -fPIC?"),
3551 input_bfd);
3552 bfd_set_error (bfd_error_bad_value);
3553 return FALSE;
3554 }
3555 }
3556
3557 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3558 r_type);
3559 }
3560 }
3561
3562 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3563
3564 /* This reloc will be computed at runtime, so there's no
3565 need to do anything now. */
3566 if (! relocate)
3567 continue;
3568 }
3569 break;
3570
6f7be959
WL		 3571 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3572 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3573 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3574 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3575 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3576 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
0e1862bb 3577 if (bfd_link_pic (info))
6f7be959
WL		 3578 {
3579 Elf_Internal_Rela outrel;
3580 bfd_boolean skip;
3581
3582 BFD_ASSERT (sreloc != NULL);
3583 skip = FALSE;
3584 outrel.r_offset =
3585 _bfd_elf_section_offset (output_bfd, info, input_section,
3586 rel->r_offset);
3587 if (outrel.r_offset == (bfd_vma) -1)
3588 skip = TRUE;
3589 else if (outrel.r_offset == (bfd_vma) -2)
3590 skip = TRUE;
3591 outrel.r_offset += (input_section->output_section->vma
3592 + input_section->output_offset);
3593 if (skip)
3594 memset (&outrel, 0, sizeof outrel);
3595 else
3596 {
3597 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3598 outrel.r_addend = relocation - dtpoff_base (info)
3599 + rel->r_addend;
3600 }
3601
3602 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3603 continue;
3604 }
3605 relocation = tpoff (info, relocation);
3606 break;
3607
aa137e4d
NC		 3608 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3609 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3610 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3611 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3612 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3613 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3614 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3615 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3616 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3617 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3618 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3619 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
6f7be959
WL		 3620 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3621 input_section->sec_flg0);
3622 tls_type = GOT_UNKNOWN;
aa137e4d 3623 if (h == NULL && local_got_offsets)
6f7be959
WL		 3624 tls_type =
3625 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
aa137e4d 3626 else if (h != NULL)
6f7be959
WL		 3627 {
3628 tls_type = tilegx_elf_hash_entry(h)->tls_type;
0e1862bb
L		 3629 if (!bfd_link_pic (info)
3630 && h->dynindx == -1
3631 && tls_type == GOT_TLS_IE)
6f7be959
WL		 3632 r_type = (!input_section->sec_flg0
3633 ? tilegx_tls_translate_to_le (r_type)
3634 : tilegx_tls_translate_to_ie (r_type));
3635 }
aa137e4d
NC		 3636
3637 if (tls_type == GOT_TLS_IE)
6f7be959
WL		 3638 r_type = tilegx_tls_translate_to_ie (r_type);
3639
3640 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3641 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3642 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3643 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3644 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3645 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3646 {
3647 relocation = tpoff (info, relocation);
3648 break;
3649 }
aa137e4d
NC		 3650
3651 if (h != NULL)
3652 {
3653 off = h->got.offset;
3654 h->got.offset |= 1;
3655 }
3656 else
3657 {
3658 BFD_ASSERT (local_got_offsets != NULL);
3659 off = local_got_offsets[r_symndx];
3660 local_got_offsets[r_symndx] |= 1;
3661 }
3662
3663 if (htab->elf.sgot == NULL)
3664 abort ();
3665
3666 if ((off & 1) != 0)
3667 off &= ~1;
3668 else
3669 {
3670 Elf_Internal_Rela outrel;
3671 int indx = 0;
3672 bfd_boolean need_relocs = FALSE;
3673
3674 if (htab->elf.srelgot == NULL)
3675 abort ();
3676
3677 if (h != NULL)
3678 {
3679 bfd_boolean dyn;
3680 dyn = htab->elf.dynamic_sections_created;
3681
0e1862bb
L		 3682 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3683 bfd_link_pic (info),
3684 h)
3685 && (!bfd_link_pic (info)
aa137e4d
NC		 3686 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3687 {
3688 indx = h->dynindx;
3689 }
3690 }
3691
3692 /* The GOT entries have not been initialized yet. Do it
3693 now, and emit any relocations. */
0e1862bb 3694 if ((bfd_link_pic (info) || indx != 0)
aa137e4d
NC		 3695 && (h == NULL
3696 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3697 || h->root.type != bfd_link_hash_undefweak))
3698 need_relocs = TRUE;
3699
3700 switch (r_type)
3701 {
3702 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3703 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3704 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3705 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3706 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3707 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 3708 if (need_relocs) {
3709 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3710 htab->elf.sgot->contents + off);
3711 outrel.r_offset = (htab->elf.sgot->output_section->vma
3712 + htab->elf.sgot->output_offset + off);
3713 outrel.r_addend = 0;
3714 if (indx == 0)
3715 outrel.r_addend = relocation - dtpoff_base (info);
3716 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3717 TILEGX_ELF_TPOFF_RELOC (htab));
3718 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3719 } else {
3720 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3721 tpoff (info, relocation),
3722 htab->elf.sgot->contents + off);
3723 }
3724 break;
3725
3726 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3727 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3728 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3729 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3730 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3731 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3732 if (need_relocs) {
3733 outrel.r_offset = (htab->elf.sgot->output_section->vma
3734 + htab->elf.sgot->output_offset + off);
3735 outrel.r_addend = 0;
3736 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3737 TILEGX_ELF_DTPMOD_RELOC (htab));
3738 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3739 htab->elf.sgot->contents + off);
3740 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3741 if (indx == 0)
3742 {
3743 BFD_ASSERT (! unresolved_reloc);
3744 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3745 relocation - dtpoff_base (info),
3746 (htab->elf.sgot->contents + off +
3747 TILEGX_ELF_WORD_BYTES (htab)));
3748 }
3749 else
3750 {
3751 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3752 (htab->elf.sgot->contents + off +
3753 TILEGX_ELF_WORD_BYTES (htab)));
3754 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3755 TILEGX_ELF_DTPOFF_RELOC (htab));
3756 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3757 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3758 }
3759 }
3760
3761 else {
3762 /* If we are not emitting relocations for a
3763 general dynamic reference, then we must be in a
3764 static link or an executable link with the
3765 symbol binding locally. Mark it as belonging
3766 to module 1, the executable. */
3767 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3768 htab->elf.sgot->contents + off );
3769 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3770 relocation - dtpoff_base (info),
3771 htab->elf.sgot->contents + off +
3772 TILEGX_ELF_WORD_BYTES (htab));
3773 }
3774 break;
3775 }
3776 }
3777
3778 if (off >= (bfd_vma) -2)
3779 abort ();
3780
535127d2 3781 relocation = off - got_base;
aa137e4d
NC		 3782 unresolved_reloc = FALSE;
3783 howto = tilegx_elf_howto_table + r_type;
3784 break;
3785
3786 default:
3787 break;
3788 }
3789
3790 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3791 because such sections are not SEC_ALLOC and thus ld.so will
3792 not process them. */
3793 if (unresolved_reloc
3794 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3795 && h->def_dynamic)
3796 && _bfd_elf_section_offset (output_bfd, info, input_section,
3797 rel->r_offset) != (bfd_vma) -1)
4eca0228 3798 _bfd_error_handler
695344c0 3799 /* xgettext:c-format */
d42c267e 3800 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
aa137e4d
NC		 3801 input_bfd,
3802 input_section,
d42c267e 3803 rel->r_offset,
aa137e4d
NC		 3804 howto->name,
3805 h->root.root.string);
3806
3807 r = bfd_reloc_continue;
3808
3809 /* Get the operand creation function, if any. */
3810 create_func = reloc_to_create_func[r_type];
3811 if (create_func == NULL)
3812 {
3813 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3814 contents, rel->r_offset,
3815 relocation, rel->r_addend);
3816 }
3817 else
3818 {
3819 if (howto->pc_relative)
3820 {
3821 relocation -=
3822 input_section->output_section->vma + input_section->output_offset;
3823 if (howto->pcrel_offset)
3824 relocation -= rel->r_offset;
3825 }
3826
3827 bfd_byte *data;
3828
3829 /* Add the relocation addend if any to the final target value */
3830 relocation += rel->r_addend;
3831
3832 /* Do basic range checking */
3833 r = bfd_check_overflow (howto->complain_on_overflow,
3834 howto->bitsize,
3835 howto->rightshift,
3836 TILEGX_ELF_WORD_BYTES (htab) * 8,
3837 relocation);
3838
3839 /*
3840 * Write the relocated value out into the raw section data.
3841 * Don't put a relocation out in the .rela section.
3842 */
3843 tilegx_bundle_bits mask = create_func(-1);
3844 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3845
3846 /* Only touch bytes while the mask is not 0, so we
3847 don't write to out of bounds memory if this is actually
3848 a 16-bit switch instruction. */
3849 for (data = contents + rel->r_offset; mask != 0; data++)
3850 {
3851 bfd_byte byte_mask = (bfd_byte)mask;
3852 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3853 mask >>= 8;
3854 value >>= 8;
3855 }
3856 }
3857
3858 if (r != bfd_reloc_ok)
3859 {
3860 const char *msg = NULL;
3861
3862 switch (r)
3863 {
3864 case bfd_reloc_overflow:
1a72702b 3865 (*info->callbacks->reloc_overflow)
aa137e4d
NC		 3866 (info, (h ? &h->root : NULL), name, howto->name,
3867 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3868 break;
3869
3870 case bfd_reloc_undefined:
1a72702b
AM		 3871 (*info->callbacks->undefined_symbol)
3872 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
aa137e4d
NC		 3873 break;
3874
3875 case bfd_reloc_outofrange:
3876 msg = _("internal error: out of range error");
3877 break;
3878
3879 case bfd_reloc_notsupported:
3880 msg = _("internal error: unsupported relocation error");
3881 break;
3882
3883 case bfd_reloc_dangerous:
3884 msg = _("internal error: dangerous relocation");
3885 break;
3886
3887 default:
3888 msg = _("internal error: unknown error");
3889 break;
3890 }
3891
3892 if (msg)
1a72702b
AM		 3893 (*info->callbacks->warning) (info, msg, name, input_bfd,
3894 input_section, rel->r_offset);
aa137e4d
NC		 3895 }
3896 }
3897
3898 return TRUE;
3899}
3900
3901/* Finish up dynamic symbol handling. We set the contents of various
3902 dynamic sections here. */
3903
3904bfd_boolean
3905tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
3906 struct bfd_link_info *info,
3907 struct elf_link_hash_entry *h,
3908 Elf_Internal_Sym *sym)
3909{
3910 struct tilegx_elf_link_hash_table *htab;
3911
3912 htab = tilegx_elf_hash_table (info);
3913 BFD_ASSERT (htab != NULL);
3914
3915 if (h->plt.offset != (bfd_vma) -1)
3916 {
3917 asection *splt;
3918 asection *srela;
3919 asection *sgotplt;
3920 Elf_Internal_Rela rela;
3921 bfd_byte *loc;
3922 bfd_vma r_offset;
3923 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
3924
3925
3926 int rela_index;
3927
3928 /* This symbol has an entry in the PLT. Set it up. */
3929
3930 BFD_ASSERT (h->dynindx != -1);
3931
3932 splt = htab->elf.splt;
3933 srela = htab->elf.srelplt;
3934 sgotplt = htab->elf.sgotplt;
3935
3936 if (splt == NULL || srela == NULL)
3937 abort ();
3938
3939 /* Fill in the entry in the procedure linkage table. */
3940 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
3941 h->plt.offset, &r_offset);
3942
3943 /* Fill in the entry in the global offset table, which initially points
3944 to the beginning of the plt. */
3945 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3946 splt->output_section->vma + splt->output_offset,
3947 sgotplt->contents + r_offset);
3948
3949 /* Fill in the entry in the .rela.plt section. */
3950 rela.r_offset = (sgotplt->output_section->vma
3951 + sgotplt->output_offset
3952 + r_offset);
3953 rela.r_addend = 0;
3954 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
3955
3956 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
3957 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3958
3959 if (!h->def_regular)
3960 {
3961 /* Mark the symbol as undefined, rather than as defined in
3962 the .plt section. Leave the value alone. */
3963 sym->st_shndx = SHN_UNDEF;
3964 /* If the symbol is weak, we do need to clear the value.
3965 Otherwise, the PLT entry would provide a definition for
3966 the symbol even if the symbol wasn't defined anywhere,
3967 and so the symbol would never be NULL. */
3968 if (!h->ref_regular_nonweak)
3969 sym->st_value = 0;
3970 }
3971 }
3972
3973 if (h->got.offset != (bfd_vma) -1
3974 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3975 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3976 {
3977 asection *sgot;
3978 asection *srela;
3979 Elf_Internal_Rela rela;
3980
3981 /* This symbol has an entry in the GOT. Set it up. */
3982
3983 sgot = htab->elf.sgot;
3984 srela = htab->elf.srelgot;
3985 BFD_ASSERT (sgot != NULL && srela != NULL);
3986
3987 rela.r_offset = (sgot->output_section->vma
3988 + sgot->output_offset
3989 + (h->got.offset &~ (bfd_vma) 1));
3990
3991 /* If this is a -Bsymbolic link, and the symbol is defined
3992 locally, we just want to emit a RELATIVE reloc. Likewise if
3993 the symbol was forced to be local because of a version file.
3994 The entry in the global offset table will already have been
3995 initialized in the relocate_section function. */
0e1862bb 3996 if (bfd_link_pic (info)
aa137e4d
NC		 3997 && (info->symbolic || h->dynindx == -1)
3998 && h->def_regular)
3999 {
4000 asection *sec = h->root.u.def.section;
4001 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4002 rela.r_addend = (h->root.u.def.value
4003 + sec->output_section->vma
4004 + sec->output_offset);
4005 }
4006 else
4007 {
4008 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4009 rela.r_addend = 0;
4010 }
4011
4012 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4013 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4014 tilegx_elf_append_rela (output_bfd, srela, &rela);
4015 }
4016
4017 if (h->needs_copy)
4018 {
4019 asection *s;
4020 Elf_Internal_Rela rela;
4021
4022 /* This symbols needs a copy reloc. Set it up. */
4023 BFD_ASSERT (h->dynindx != -1);
4024
afbf7e8e 4025 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4026 s = htab->elf.sreldynrelro;
4027 else
4028 s = htab->elf.srelbss;
aa137e4d
NC		 4029 BFD_ASSERT (s != NULL);
4030
4031 rela.r_offset = (h->root.u.def.value
4032 + h->root.u.def.section->output_section->vma
4033 + h->root.u.def.section->output_offset);
4034 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4035 rela.r_addend = 0;
4036 tilegx_elf_append_rela (output_bfd, s, &rela);
4037 }
4038
4039 /* Mark some specially defined symbols as absolute. */
9637f6ef 4040 if (h == htab->elf.hdynamic
aa137e4d
NC		 4041 || (h == htab->elf.hgot || h == htab->elf.hplt))
4042 sym->st_shndx = SHN_ABS;
4043
4044 return TRUE;
4045}
4046
4047/* Finish up the dynamic sections. */
4048
4049static bfd_boolean
4050tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4051 bfd *dynobj, asection *sdyn,
4052 asection *splt ATTRIBUTE_UNUSED)
4053{
4054 struct tilegx_elf_link_hash_table *htab;
4055 const struct elf_backend_data *bed;
4056 bfd_byte *dyncon, *dynconend;
4057 size_t dynsize;
aa137e4d
NC		 4058
4059 htab = tilegx_elf_hash_table (info);
4060 BFD_ASSERT (htab != NULL);
4061 bed = get_elf_backend_data (output_bfd);
4062 dynsize = bed->s->sizeof_dyn;
4063 dynconend = sdyn->contents + sdyn->size;
aa137e4d
NC		 4064
4065 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4066 {
4067 Elf_Internal_Dyn dyn;
4068 asection *s;
4069
4070 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4071
4072 switch (dyn.d_tag)
4073 {
4074 case DT_PLTGOT:
4075 s = htab->elf.sgotplt;
4076 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4077 break;
4078 case DT_JMPREL:
4079 s = htab->elf.srelplt;
4080 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4081 break;
4082 case DT_PLTRELSZ:
4083 s = htab->elf.srelplt;
4084 dyn.d_un.d_val = s->size;
4085 break;
4086 default:
4087 continue;
4088 }
4089
4090 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4091 }
4092 return TRUE;
4093}
4094
4095bfd_boolean
4096tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4097 struct bfd_link_info *info)
4098{
4099 bfd *dynobj;
4100 asection *sdyn;
4101 struct tilegx_elf_link_hash_table *htab;
663b5850 4102 size_t pad_size;
aa137e4d
NC		 4103
4104 htab = tilegx_elf_hash_table (info);
4105 BFD_ASSERT (htab != NULL);
4106 dynobj = htab->elf.dynobj;
4107
3d4d4302 4108 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
aa137e4d
NC		 4109
4110 if (elf_hash_table (info)->dynamic_sections_created)
4111 {
4112 asection *splt;
4113 bfd_boolean ret;
4114
3d4d4302 4115 splt = htab->elf.splt;
aa137e4d
NC		 4116 BFD_ASSERT (splt != NULL && sdyn != NULL);
4117
4118 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4119
535b785f 4120 if (!ret)
aa137e4d
NC		 4121 return ret;
4122
4123 /* Fill in the head and tail entries in the procedure linkage table. */
4124 if (splt->size > 0)
4125 {
4126 memcpy (splt->contents,
4127 ABI_64_P (output_bfd) ?
4128 tilegx64_plt0_entry : tilegx32_plt0_entry,
4129 PLT_HEADER_SIZE);
4130
663b5850
WL		 4131 memcpy (splt->contents + splt->size
4132 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
aa137e4d
NC		 4133 ABI_64_P (output_bfd) ?
4134 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4135 PLT_TAIL_SIZE);
663b5850
WL		 4136 /* Add padding so that the plt section is a multiple of its
4137 entry size. */
4138 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4139 memset (splt->contents + splt->size - pad_size, 0, pad_size);
aa137e4d 4140
4c7236d3
L		 4141 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4142 = PLT_ENTRY_SIZE;
4143 }
aa137e4d
NC		 4144 }
4145
4146 if (htab->elf.sgotplt)
4147 {
4148 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4149 {
4eca0228 4150 _bfd_error_handler
aa137e4d
NC		 4151 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4152 return FALSE;
4153 }
4154
4155 if (htab->elf.sgotplt->size > 0)
4156 {
4157 /* Write the first two entries in .got.plt, needed for the dynamic
4158 linker. */
4159 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4160 htab->elf.sgotplt->contents);
4161 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4162 htab->elf.sgotplt->contents
4163 + GOT_ENTRY_SIZE (htab));
aa137e4d 4164
4c7236d3
L		 4165 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4166 GOT_ENTRY_SIZE (htab);
4167 }
aa137e4d
NC		 4168 }
4169
4170 if (htab->elf.sgot)
4171 {
4172 if (htab->elf.sgot->size > 0)
4173 {
4174 /* Set the first entry in the global offset table to the address of
4175 the dynamic section. */
4176 bfd_vma val = (sdyn ?
4177 sdyn->output_section->vma + sdyn->output_offset :
4178 0);
4179 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4180 htab->elf.sgot->contents);
aa137e4d 4181
4c7236d3
L		 4182 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4183 GOT_ENTRY_SIZE (htab);
4184 }
aa137e4d
NC		 4185 }
4186
4187 return TRUE;
4188}
4189
4190\f
4191
4192/* Return address for Ith PLT stub in section PLT, for relocation REL
4193 or (bfd_vma) -1 if it should not be included. */
4194
4195bfd_vma
4196tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4197 const arelent *rel ATTRIBUTE_UNUSED)
4198{
4199 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4200}
4201
4202enum elf_reloc_type_class
7e612e98
AM		 4203tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4204 const asection *rel_sec ATTRIBUTE_UNUSED,
4205 const Elf_Internal_Rela *rela)
aa137e4d
NC		 4206{
4207 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4208 {
4209 case R_TILEGX_RELATIVE:
4210 return reloc_class_relative;
4211 case R_TILEGX_JMP_SLOT:
4212 return reloc_class_plt;
4213 case R_TILEGX_COPY:
4214 return reloc_class_copy;
4215 default:
4216 return reloc_class_normal;
4217 }
4218}
4219
4220int
4221tilegx_additional_program_headers (bfd *abfd,
4222 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4223{
4224 /* Each .intrpt section specified by the user adds another PT_LOAD
4225 header since the sections are discontiguous. */
4226 static const char intrpt_sections[4][9] =
4227 {
4228 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4229 };
4230 int count = 0;
4231 int i;
4232
4233 for (i = 0; i < 4; i++)
4234 {
4235 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4236 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4237 ++count;
4238 }
4239
4240 /* Add four "padding" headers in to leave room in case a custom linker
4241 script does something fancy. Otherwise ld complains that it ran
4242 out of program headers and refuses to link. */
4243 count += 4;
4244
4245 return count;
4246}
4247
4248
4249bfd_boolean
50e03d47 4250_bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
aa137e4d 4251{
50e03d47 4252 bfd *obfd = info->output_bfd;
aa137e4d
NC		 4253 const char *targ1 = bfd_get_target (ibfd);
4254 const char *targ2 = bfd_get_target (obfd);
4255
4256 if (strcmp (targ1, targ2) != 0)
4257 {
4eca0228 4258 _bfd_error_handler
695344c0 4259 /* xgettext:c-format */
aa137e4d
NC		 4260 (_("%B: Cannot link together %s and %s objects."),
4261 ibfd, targ1, targ2);
4262 bfd_set_error (bfd_error_bad_value);
4263 return FALSE;
4264 }
4265
4266 return TRUE;
4267}
GDB Binutils - Deliverables
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