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ELF/BFD: Limit `_bfd_elf_link_renumber_dynsyms' call in section GC
[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;
1698 unsigned long r_symndx;
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. */
1724 h->root.non_ir_ref = 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
AM		 2105 {
2106 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2107 {
2108 case R_TILEGX_TLS_GD_CALL:
2109 /* This reloc implicitly references __tls_get_addr. We know
2110 another reloc will reference the same symbol as the one
2111 on this reloc, so the real symbol and section will be
2112 gc marked when processing the other reloc. That lets
2113 us handle __tls_get_addr here. */
2114 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
2115 FALSE, FALSE, TRUE);
2116 BFD_ASSERT (h != NULL);
2117 h->mark = 1;
2118 if (h->u.weakdef != NULL)
2119 h->u.weakdef->mark = 1;
2120 sym = NULL;
2121 }
aa137e4d
NC		 2122 }
2123
2124 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2125}
2126
2127/* Update the got entry reference counts for the section being removed. */
2128bfd_boolean
2129tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
2130 asection *sec, const Elf_Internal_Rela *relocs)
2131{
2132 struct tilegx_elf_link_hash_table *htab;
2133 Elf_Internal_Shdr *symtab_hdr;
2134 struct elf_link_hash_entry **sym_hashes;
2135 bfd_signed_vma *local_got_refcounts;
2136 const Elf_Internal_Rela *rel, *relend;
2137
0e1862bb 2138 if (bfd_link_relocatable (info))
aa137e4d
NC		 2139 return TRUE;
2140
2141 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
2142
2143 elf_section_data (sec)->local_dynrel = NULL;
2144
2145 htab = tilegx_elf_hash_table (info);
2146 BFD_ASSERT (htab != NULL);
2147 symtab_hdr = &elf_symtab_hdr (abfd);
2148 sym_hashes = elf_sym_hashes (abfd);
2149 local_got_refcounts = elf_local_got_refcounts (abfd);
2150
2151 relend = relocs + sec->reloc_count;
2152 for (rel = relocs; rel < relend; rel++)
2153 {
2154 unsigned long r_symndx;
2155 unsigned int r_type;
2156 struct elf_link_hash_entry *h = NULL;
2157
2158 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2159 if (r_symndx >= symtab_hdr->sh_info)
2160 {
2161 struct tilegx_elf_link_hash_entry *eh;
2162 struct tilegx_elf_dyn_relocs **pp;
2163 struct tilegx_elf_dyn_relocs *p;
2164
2165 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2166 while (h->root.type == bfd_link_hash_indirect
2167 || h->root.type == bfd_link_hash_warning)
2168 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2169 eh = (struct tilegx_elf_link_hash_entry *) h;
2170 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2171 if (p->sec == sec)
2172 {
2173 /* Everything must go for SEC. */
2174 *pp = p->next;
2175 break;
2176 }
2177 }
2178
2179 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
6f7be959
WL		 2180 r_type = tilegx_elf_tls_transition (info, r_type, h != NULL,
2181 sec->sec_flg0);
aa137e4d
NC		 2182 switch (r_type)
2183 {
2184 case R_TILEGX_IMM16_X0_HW0_GOT:
2185 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 2186 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2187 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2188 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2189 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 2190 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2191 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 2192 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2193 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2194 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2195 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 2196 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2197 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 2198 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2199 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2200 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2201 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 2202 if (h != NULL)
2203 {
2204 if (h->got.refcount > 0)
2205 h->got.refcount--;
2206 }
2207 else
2208 {
6f7be959
WL		 2209 if (local_got_refcounts &&
2210 local_got_refcounts[r_symndx] > 0)
aa137e4d
NC		 2211 local_got_refcounts[r_symndx]--;
2212 }
2213 break;
2214
2215 case R_TILEGX_64_PCREL:
2216 case R_TILEGX_32_PCREL:
2217 case R_TILEGX_16_PCREL:
2218 case R_TILEGX_8_PCREL:
2219 case R_TILEGX_IMM16_X0_HW0_PCREL:
2220 case R_TILEGX_IMM16_X1_HW0_PCREL:
2221 case R_TILEGX_IMM16_X0_HW1_PCREL:
2222 case R_TILEGX_IMM16_X1_HW1_PCREL:
2223 case R_TILEGX_IMM16_X0_HW2_PCREL:
2224 case R_TILEGX_IMM16_X1_HW2_PCREL:
2225 case R_TILEGX_IMM16_X0_HW3_PCREL:
2226 case R_TILEGX_IMM16_X1_HW3_PCREL:
2227 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2228 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2229 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2230 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2231 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2232 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2233 if (h != NULL
2234 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2235 break;
2236 /* Fall through. */
2237
2238 case R_TILEGX_64:
2239 case R_TILEGX_32:
2240 case R_TILEGX_16:
2241 case R_TILEGX_8:
2242 case R_TILEGX_HW0:
2243 case R_TILEGX_HW1:
2244 case R_TILEGX_HW2:
2245 case R_TILEGX_HW3:
2246 case R_TILEGX_HW0_LAST:
2247 case R_TILEGX_HW1_LAST:
2248 case R_TILEGX_HW2_LAST:
2249 case R_TILEGX_COPY:
2250 case R_TILEGX_GLOB_DAT:
2251 case R_TILEGX_JMP_SLOT:
2252 case R_TILEGX_RELATIVE:
2253 case R_TILEGX_BROFF_X1:
2254 case R_TILEGX_JUMPOFF_X1:
2255 case R_TILEGX_IMM8_X0:
2256 case R_TILEGX_IMM8_Y0:
2257 case R_TILEGX_IMM8_X1:
2258 case R_TILEGX_IMM8_Y1:
2259 case R_TILEGX_DEST_IMM8_X1:
2260 case R_TILEGX_MT_IMM14_X1:
2261 case R_TILEGX_MF_IMM14_X1:
2262 case R_TILEGX_MMSTART_X0:
2263 case R_TILEGX_MMEND_X0:
2264 case R_TILEGX_SHAMT_X0:
2265 case R_TILEGX_SHAMT_X1:
2266 case R_TILEGX_SHAMT_Y0:
2267 case R_TILEGX_SHAMT_Y1:
2268 case R_TILEGX_IMM16_X0_HW0:
2269 case R_TILEGX_IMM16_X1_HW0:
2270 case R_TILEGX_IMM16_X0_HW1:
2271 case R_TILEGX_IMM16_X1_HW1:
2272 case R_TILEGX_IMM16_X0_HW2:
2273 case R_TILEGX_IMM16_X1_HW2:
2274 case R_TILEGX_IMM16_X0_HW3:
2275 case R_TILEGX_IMM16_X1_HW3:
2276 case R_TILEGX_IMM16_X0_HW0_LAST:
2277 case R_TILEGX_IMM16_X1_HW0_LAST:
2278 case R_TILEGX_IMM16_X0_HW1_LAST:
2279 case R_TILEGX_IMM16_X1_HW1_LAST:
2280 case R_TILEGX_IMM16_X0_HW2_LAST:
2281 case R_TILEGX_IMM16_X1_HW2_LAST:
0e1862bb 2282 if (bfd_link_pic (info))
aa137e4d
NC		 2283 break;
2284 /* Fall through. */
2285
2286 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 2287 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
2288 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
2289 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
2290 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
2291 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
2292 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
2293 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
2294 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
2295 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
2296 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
2297 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
2298 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
2299 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
2300 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 2301 if (h != NULL)
2302 {
2303 if (h->plt.refcount > 0)
2304 h->plt.refcount--;
2305 }
2306 break;
2307
2308 default:
2309 break;
2310 }
2311 }
2312
2313 return TRUE;
2314}
2315
2316/* Adjust a symbol defined by a dynamic object and referenced by a
2317 regular object. The current definition is in some section of the
2318 dynamic object, but we're not including those sections. We have to
2319 change the definition to something the rest of the link can
2320 understand. */
2321
2322bfd_boolean
2323tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2324 struct elf_link_hash_entry *h)
2325{
2326 struct tilegx_elf_link_hash_table *htab;
2327 struct tilegx_elf_link_hash_entry * eh;
2328 struct tilegx_elf_dyn_relocs *p;
2329 bfd *dynobj;
5474d94f 2330 asection *s, *srel;
aa137e4d
NC		 2331
2332 htab = tilegx_elf_hash_table (info);
2333 BFD_ASSERT (htab != NULL);
2334
2335 dynobj = htab->elf.dynobj;
2336
2337 /* Make sure we know what is going on here. */
2338 BFD_ASSERT (dynobj != NULL
2339 && (h->needs_plt
2340 || h->u.weakdef != NULL
2341 || (h->def_dynamic
2342 && h->ref_regular
2343 && !h->def_regular)));
2344
2345 /* If this is a function, put it in the procedure linkage table. We
2346 will fill in the contents of the procedure linkage table later
2347 (although we could actually do it here). */
2348 if (h->type == STT_FUNC || h->needs_plt)
2349 {
2350 if (h->plt.refcount <= 0
2351 || SYMBOL_CALLS_LOCAL (info, h)
2352 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2353 && h->root.type == bfd_link_hash_undefweak))
2354 {
2355 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2356 reloc in an input file, but the symbol was never referred
2357 to by a dynamic object, or if all references were garbage
2358 collected. In such a case, we don't actually need to build
2359 a procedure linkage table, and we can just do a
2360 R_TILEGX_JUMPOFF_X1 relocation instead. */
2361 h->plt.offset = (bfd_vma) -1;
2362 h->needs_plt = 0;
2363 }
2364
2365 return TRUE;
2366 }
2367 else
2368 h->plt.offset = (bfd_vma) -1;
2369
2370 /* If this is a weak symbol, and there is a real definition, the
2371 processor independent code will have arranged for us to see the
2372 real definition first, and we can just use the same value. */
2373 if (h->u.weakdef != NULL)
2374 {
2375 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2376 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2377 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2378 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2379 return TRUE;
2380 }
2381
2382 /* This is a reference to a symbol defined by a dynamic object which
2383 is not a function. */
2384
2385 /* If we are creating a shared library, we must presume that the
2386 only references to the symbol are via the global offset table.
2387 For such cases we need not do anything here; the relocations will
2388 be handled correctly by relocate_section. */
0e1862bb 2389 if (bfd_link_pic (info))
aa137e4d
NC		 2390 return TRUE;
2391
2392 /* If there are no references to this symbol that do not use the
2393 GOT, we don't need to generate a copy reloc. */
2394 if (!h->non_got_ref)
2395 return TRUE;
2396
2397 /* If -z nocopyreloc was given, we won't generate them either. */
2398 if (info->nocopyreloc)
2399 {
2400 h->non_got_ref = 0;
2401 return TRUE;
2402 }
2403
2404 eh = (struct tilegx_elf_link_hash_entry *) h;
2405 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2406 {
2407 s = p->sec->output_section;
2408 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2409 break;
2410 }
2411
2412 /* If we didn't find any dynamic relocs in read-only sections, then
2413 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2414 if (p == NULL)
2415 {
2416 h->non_got_ref = 0;
2417 return TRUE;
2418 }
2419
aa137e4d
NC		 2420 /* We must allocate the symbol in our .dynbss section, which will
2421 become part of the .bss section of the executable. There will be
2422 an entry for this symbol in the .dynsym section. The dynamic
2423 object will contain position independent code, so all references
2424 from the dynamic object to this symbol will go through the global
2425 offset table. The dynamic linker will use the .dynsym entry to
2426 determine the address it must put in the global offset table, so
2427 both the dynamic object and the regular object will refer to the
2428 same memory location for the variable. */
2429
2430 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2431 to copy the initial value out of the dynamic object and into the
2432 runtime process image. We need to remember the offset into the
2433 .rel.bss section we are going to use. */
5474d94f
AM		 2434 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2435 {
2436 s = htab->elf.sdynrelro;
2437 srel = htab->elf.sreldynrelro;
2438 }
2439 else
2440 {
2441 s = htab->elf.sdynbss;
2442 srel = htab->elf.srelbss;
2443 }
1d7e9d18 2444 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
aa137e4d 2445 {
5474d94f 2446 srel->size += TILEGX_ELF_RELA_BYTES (htab);
aa137e4d
NC		 2447 h->needs_copy = 1;
2448 }
2449
5474d94f 2450 return _bfd_elf_adjust_dynamic_copy (info, h, s);
aa137e4d
NC		 2451}
2452
2453/* Allocate space in .plt, .got and associated reloc sections for
2454 dynamic relocs. */
2455
2456static bfd_boolean
e4d34ace 2457allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2458{
2459 struct bfd_link_info *info;
2460 struct tilegx_elf_link_hash_table *htab;
2461 struct tilegx_elf_link_hash_entry *eh;
2462 struct tilegx_elf_dyn_relocs *p;
2463
2464 if (h->root.type == bfd_link_hash_indirect)
2465 return TRUE;
2466
aa137e4d
NC		 2467 info = (struct bfd_link_info *) inf;
2468 htab = tilegx_elf_hash_table (info);
2469 BFD_ASSERT (htab != NULL);
2470
2471 if (htab->elf.dynamic_sections_created
2472 && h->plt.refcount > 0)
2473 {
2474 /* Make sure this symbol is output as a dynamic symbol.
2475 Undefined weak syms won't yet be marked as dynamic. */
2476 if (h->dynindx == -1
2477 && !h->forced_local)
2478 {
2479 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2480 return FALSE;
2481 }
2482
0e1862bb 2483 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
aa137e4d
NC		 2484 {
2485 asection *s = htab->elf.splt;
2486
2487 /* Allocate room for the header and tail. */
2488 if (s->size == 0)
2489 {
663b5850 2490 s->size = PLT_ENTRY_SIZE;
aa137e4d
NC		 2491 }
2492
663b5850 2493 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
aa137e4d
NC		 2494
2495 /* If this symbol is not defined in a regular file, and we are
2496 not generating a shared library, then set the symbol to this
2497 location in the .plt. This is required to make function
2498 pointers compare as equal between the normal executable and
2499 the shared library. */
0e1862bb 2500 if (! bfd_link_pic (info)
aa137e4d
NC		 2501 && !h->def_regular)
2502 {
2503 h->root.u.def.section = s;
2504 h->root.u.def.value = h->plt.offset;
2505 }
2506
2507 /* Make room for this entry. */
2508 s->size += PLT_ENTRY_SIZE;
2509
2510 /* We also need to make an entry in the .got.plt section. */
2511 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2512
2513 /* We also need to make an entry in the .rela.plt section. */
2514 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2515 }
2516 else
2517 {
2518 h->plt.offset = (bfd_vma) -1;
2519 h->needs_plt = 0;
2520 }
2521 }
2522 else
2523 {
2524 h->plt.offset = (bfd_vma) -1;
2525 h->needs_plt = 0;
2526 }
2527
6f7be959
WL		 2528 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2529 requiring no TLS entry. */
2530 if (h->got.refcount > 0
2531 && !htab->disable_le_transition
0e1862bb 2532 && !bfd_link_pic (info)
6f7be959
WL		 2533 && h->dynindx == -1
2534 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2535 h->got.offset = (bfd_vma) -1;
2536 else if (h->got.refcount > 0)
aa137e4d
NC		 2537 {
2538 asection *s;
2539 bfd_boolean dyn;
2540 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2541
2542 /* Make sure this symbol is output as a dynamic symbol.
2543 Undefined weak syms won't yet be marked as dynamic. */
2544 if (h->dynindx == -1
2545 && !h->forced_local)
2546 {
2547 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2548 return FALSE;
2549 }
2550
2551 s = htab->elf.sgot;
2552 h->got.offset = s->size;
2553 s->size += TILEGX_ELF_WORD_BYTES (htab);
2554 /* TLS_GD entries need 2 consecutive GOT slots. */
2555 if (tls_type == GOT_TLS_GD)
2556 s->size += TILEGX_ELF_WORD_BYTES (htab);
2557 dyn = htab->elf.dynamic_sections_created;
2558 /* TLS_IE needs one dynamic relocation,
2559 TLS_GD needs two if local symbol and two if global. */
2560 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2561 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
0e1862bb
L		 2562 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2563 bfd_link_pic (info),
2564 h))
aa137e4d
NC		 2565 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2566 }
2567 else
2568 h->got.offset = (bfd_vma) -1;
2569
2570 eh = (struct tilegx_elf_link_hash_entry *) h;
2571 if (eh->dyn_relocs == NULL)
2572 return TRUE;
2573
2574 /* In the shared -Bsymbolic case, discard space allocated for
2575 dynamic pc-relative relocs against symbols which turn out to be
2576 defined in regular objects. For the normal shared case, discard
2577 space for pc-relative relocs that have become local due to symbol
2578 visibility changes. */
2579
0e1862bb 2580 if (bfd_link_pic (info))
aa137e4d
NC		 2581 {
2582 if (SYMBOL_CALLS_LOCAL (info, h))
2583 {
2584 struct tilegx_elf_dyn_relocs **pp;
2585
2586 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2587 {
2588 p->count -= p->pc_count;
2589 p->pc_count = 0;
2590 if (p->count == 0)
2591 *pp = p->next;
2592 else
2593 pp = &p->next;
2594 }
2595 }
2596
2597 /* Also discard relocs on undefined weak syms with non-default
2598 visibility. */
2599 if (eh->dyn_relocs != NULL
2600 && h->root.type == bfd_link_hash_undefweak)
2601 {
2602 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2603 eh->dyn_relocs = NULL;
2604
2605 /* Make sure undefined weak symbols are output as a dynamic
2606 symbol in PIEs. */
2607 else if (h->dynindx == -1
2608 && !h->forced_local)
2609 {
2610 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2611 return FALSE;
2612 }
2613 }
2614 }
2615 else
2616 {
2617 /* For the non-shared case, discard space for relocs against
2618 symbols which turn out to need copy relocs or are not
2619 dynamic. */
2620
2621 if (!h->non_got_ref
2622 && ((h->def_dynamic
2623 && !h->def_regular)
2624 || (htab->elf.dynamic_sections_created
2625 && (h->root.type == bfd_link_hash_undefweak
2626 || h->root.type == bfd_link_hash_undefined))))
2627 {
2628 /* Make sure this symbol is output as a dynamic symbol.
2629 Undefined weak syms won't yet be marked as dynamic. */
2630 if (h->dynindx == -1
2631 && !h->forced_local)
2632 {
2633 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2634 return FALSE;
2635 }
2636
2637 /* If that succeeded, we know we'll be keeping all the
2638 relocs. */
2639 if (h->dynindx != -1)
2640 goto keep;
2641 }
2642
2643 eh->dyn_relocs = NULL;
2644
2645 keep: ;
2646 }
2647
2648 /* Finally, allocate space. */
2649 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2650 {
2651 asection *sreloc = elf_section_data (p->sec)->sreloc;
2652 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2653 }
2654
2655 return TRUE;
2656}
2657
2658/* Find any dynamic relocs that apply to read-only sections. */
2659
2660static bfd_boolean
e4d34ace 2661readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2662{
2663 struct tilegx_elf_link_hash_entry *eh;
2664 struct tilegx_elf_dyn_relocs *p;
2665
aa137e4d
NC		 2666 eh = (struct tilegx_elf_link_hash_entry *) h;
2667 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2668 {
2669 asection *s = p->sec->output_section;
2670
2671 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2672 {
2673 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2674
2675 info->flags |= DF_TEXTREL;
2676
2677 /* Not an error, just cut short the traversal. */
2678 return FALSE;
2679 }
2680 }
2681 return TRUE;
2682}
2683
2684/* Return true if the dynamic symbol for a given section should be
2685 omitted when creating a shared library. */
2686
2687bfd_boolean
2688tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2689 struct bfd_link_info *info,
2690 asection *p)
2691{
2692 /* We keep the .got section symbol so that explicit relocations
2693 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2694 can be turned into relocations against the .got symbol. */
2695 if (strcmp (p->name, ".got") == 0)
2696 return FALSE;
2697
2698 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2699}
2700
2701bfd_boolean
2702tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2703 struct bfd_link_info *info)
2704{
2705 struct tilegx_elf_link_hash_table *htab;
2706 bfd *dynobj;
2707 asection *s;
2708 bfd *ibfd;
2709
2710 htab = tilegx_elf_hash_table (info);
2711 BFD_ASSERT (htab != NULL);
2712 dynobj = htab->elf.dynobj;
2713 BFD_ASSERT (dynobj != NULL);
2714
2715 if (elf_hash_table (info)->dynamic_sections_created)
2716 {
2717 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2718 if (bfd_link_executable (info) && !info->nointerp)
aa137e4d 2719 {
3d4d4302 2720 s = bfd_get_linker_section (dynobj, ".interp");
aa137e4d
NC		 2721 BFD_ASSERT (s != NULL);
2722 s->size = strlen (htab->dynamic_interpreter) + 1;
2723 s->contents = (unsigned char *) htab->dynamic_interpreter;
2724 }
2725 }
2726
2727 /* Set up .got offsets for local syms, and space for local dynamic
2728 relocs. */
c72f2fb2 2729 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
aa137e4d
NC		 2730 {
2731 bfd_signed_vma *local_got;
2732 bfd_signed_vma *end_local_got;
2733 char *local_tls_type;
2734 bfd_size_type locsymcount;
2735 Elf_Internal_Shdr *symtab_hdr;
2736 asection *srel;
2737
2738 if (! is_tilegx_elf (ibfd))
2739 continue;
2740
2741 for (s = ibfd->sections; s != NULL; s = s->next)
2742 {
2743 struct tilegx_elf_dyn_relocs *p;
2744
2745 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2746 {
2747 if (!bfd_is_abs_section (p->sec)
2748 && bfd_is_abs_section (p->sec->output_section))
2749 {
2750 /* Input section has been discarded, either because
2751 it is a copy of a linkonce section or due to
2752 linker script /DISCARD/, so we'll be discarding
2753 the relocs too. */
2754 }
2755 else if (p->count != 0)
2756 {
2757 srel = elf_section_data (p->sec)->sreloc;
2758 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2759 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2760 info->flags |= DF_TEXTREL;
2761 }
2762 }
2763 }
2764
2765 local_got = elf_local_got_refcounts (ibfd);
2766 if (!local_got)
2767 continue;
2768
2769 symtab_hdr = &elf_symtab_hdr (ibfd);
2770 locsymcount = symtab_hdr->sh_info;
2771 end_local_got = local_got + locsymcount;
2772 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2773 s = htab->elf.sgot;
2774 srel = htab->elf.srelgot;
2775 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2776 {
2777 if (*local_got > 0)
2778 {
2779 *local_got = s->size;
2780 s->size += TILEGX_ELF_WORD_BYTES (htab);
2781 if (*local_tls_type == GOT_TLS_GD)
2782 s->size += TILEGX_ELF_WORD_BYTES (htab);
0e1862bb 2783 if (bfd_link_pic (info)
aa137e4d
NC		 2784 || *local_tls_type == GOT_TLS_GD
2785 || *local_tls_type == GOT_TLS_IE)
2786 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2787 }
2788 else
2789 *local_got = (bfd_vma) -1;
2790 }
2791 }
2792
2793 /* Allocate global sym .plt and .got entries, and space for global
2794 sym dynamic relocs. */
e4d34ace 2795 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
aa137e4d
NC		 2796
2797 if (elf_hash_table (info)->dynamic_sections_created)
2798 {
2799 /* If the .got section is more than 0x8000 bytes, we add
2800 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2801 bit relocations have a greater chance of working. */
2802 if (htab->elf.sgot->size >= 0x8000
2803 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2804 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2805 }
2806
2807 if (htab->elf.sgotplt)
2808 {
2809 struct elf_link_hash_entry *got;
2810 got = elf_link_hash_lookup (elf_hash_table (info),
2811 "_GLOBAL_OFFSET_TABLE_",
2812 FALSE, FALSE, FALSE);
2813
2814 /* Don't allocate .got.plt section if there are no GOT nor PLT
2815 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2816 if ((got == NULL
2817 || !got->ref_regular_nonweak)
2818 && (htab->elf.sgotplt->size
2819 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2820 && (htab->elf.splt == NULL
2821 || htab->elf.splt->size == 0)
2822 && (htab->elf.sgot == NULL
2823 || (htab->elf.sgot->size
2824 == get_elf_backend_data (output_bfd)->got_header_size)))
2825 htab->elf.sgotplt->size = 0;
2826 }
2827
2828 /* The check_relocs and adjust_dynamic_symbol entry points have
2829 determined the sizes of the various dynamic sections. Allocate
2830 memory for them. */
2831 for (s = dynobj->sections; s != NULL; s = s->next)
2832 {
2833 if ((s->flags & SEC_LINKER_CREATED) == 0)
2834 continue;
2835
2836 if (s == htab->elf.splt
2837 || s == htab->elf.sgot
2838 || s == htab->elf.sgotplt
5474d94f
AM		 2839 || s == htab->elf.sdynbss
2840 || s == htab->elf.sdynrelro)
aa137e4d
NC		 2841 {
2842 /* Strip this section if we don't need it; see the
2843 comment below. */
2844 }
2845 else if (strncmp (s->name, ".rela", 5) == 0)
2846 {
2847 if (s->size != 0)
2848 {
2849 /* We use the reloc_count field as a counter if we need
2850 to copy relocs into the output file. */
2851 s->reloc_count = 0;
2852 }
2853 }
2854 else
2855 {
2856 /* It's not one of our sections. */
2857 continue;
2858 }
2859
2860 if (s->size == 0)
2861 {
2862 /* If we don't need this section, strip it from the
2863 output file. This is mostly to handle .rela.bss and
2864 .rela.plt. We must create both sections in
2865 create_dynamic_sections, because they must be created
2866 before the linker maps input sections to output
2867 sections. The linker does that before
2868 adjust_dynamic_symbol is called, and it is that
2869 function which decides whether anything needs to go
2870 into these sections. */
2871 s->flags |= SEC_EXCLUDE;
2872 continue;
2873 }
2874
2875 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2876 continue;
2877
2878 /* Allocate memory for the section contents. Zero the memory
2879 for the benefit of .rela.plt, which has 4 unused entries
2880 at the beginning, and we don't want garbage. */
2881 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2882 if (s->contents == NULL)
2883 return FALSE;
2884 }
2885
2886 if (elf_hash_table (info)->dynamic_sections_created)
2887 {
2888 /* Add some entries to the .dynamic section. We fill in the
2889 values later, in tilegx_elf_finish_dynamic_sections, but we
2890 must add the entries now so that we get the correct size for
2891 the .dynamic section. The DT_DEBUG entry is filled in by the
2892 dynamic linker and used by the debugger. */
2893#define add_dynamic_entry(TAG, VAL) \
2894 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2895
0e1862bb 2896 if (bfd_link_executable (info))
aa137e4d
NC		 2897 {
2898 if (!add_dynamic_entry (DT_DEBUG, 0))
2899 return FALSE;
2900 }
2901
2902 if (htab->elf.srelplt->size != 0)
2903 {
2904 if (!add_dynamic_entry (DT_PLTGOT, 0)
2905 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2906 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2907 || !add_dynamic_entry (DT_JMPREL, 0))
2908 return FALSE;
2909 }
2910
2911 if (!add_dynamic_entry (DT_RELA, 0)
2912 || !add_dynamic_entry (DT_RELASZ, 0)
2913 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2914 return FALSE;
2915
2916 /* If any dynamic relocs apply to a read-only section,
2917 then we need a DT_TEXTREL entry. */
2918 if ((info->flags & DF_TEXTREL) == 0)
e4d34ace 2919 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
aa137e4d
NC		 2920
2921 if (info->flags & DF_TEXTREL)
2922 {
2923 if (!add_dynamic_entry (DT_TEXTREL, 0))
2924 return FALSE;
2925 }
2926 }
2927#undef add_dynamic_entry
2928
2929 return TRUE;
2930}
2931\f
2932/* Return the base VMA address which should be subtracted from real addresses
2933 when resolving @dtpoff relocation.
2934 This is PT_TLS segment p_vaddr. */
2935
2936static bfd_vma
2937dtpoff_base (struct bfd_link_info *info)
2938{
2939 /* If tls_sec is NULL, we should have signalled an error already. */
2940 if (elf_hash_table (info)->tls_sec == NULL)
2941 return 0;
2942 return elf_hash_table (info)->tls_sec->vma;
2943}
2944
2945/* Return the relocation value for @tpoff relocation. */
2946
2947static bfd_vma
2948tpoff (struct bfd_link_info *info, bfd_vma address)
2949{
2950 struct elf_link_hash_table *htab = elf_hash_table (info);
2951
2952 /* If tls_sec is NULL, we should have signalled an error already. */
2953 if (htab->tls_sec == NULL)
2954 return 0;
2955
2956 return (address - htab->tls_sec->vma);
2957}
2958
6f7be959
WL		 2959/* Copy SIZE bits from FROM to TO at address ADDR. */
2960
2961static void
2962tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2963{
2964 int i;
2965 for (i = 0; i < size; i++)
2966 {
2967 int from_byte = (from + i) / 8;
2968 int from_bit = (from + i) % 8;
2969 int to_byte = (to + i) / 8;
2970 int to_bit = (to + i) % 8;
2971 bfd_byte to_mask = 1 << to_bit;
2972 addr[to_byte] = (addr[to_byte] & ~to_mask)
2973 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2974 }
2975}
2976
2977/* Replace the MASK bits in ADDR with those in INSN, for the next
2978 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2979
2980static void
2981tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2982 const bfd_byte *insn)
2983{
2984 int i;
2985 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2986 {
2987 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2988 }
2989}
2990
2991/* Mask to extract the bits corresponding to an instruction in a
2992 specific pipe of a bundle. */
2993static const bfd_byte insn_mask_X1[] = {
2994 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2995};
2996
2997/* Mask to extract the bits corresponding to an instruction in a
2998 specific pipe of a bundle, minus the destination operand and the
2999 first source operand. */
68ffbac6 3000static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
6f7be959
WL		 3001 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
3002};
3003
3004static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
3005 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
3006};
3007
3008static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
3009 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
3010};
3011static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
3012 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
3013};
3014
3015/* Mask to extract the bits corresponding to an instruction in a
3016 specific pipe of a bundle, minus the register operands. */
3017static const bfd_byte insn_mask_X0_no_operand[] = {
3018 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
3019};
3020
3021static const bfd_byte insn_mask_X1_no_operand[] = {
3022 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
3023};
3024
3025static const bfd_byte insn_mask_Y0_no_operand[] = {
3026 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
3027};
3028
3029static const bfd_byte insn_mask_Y1_no_operand[] = {
3030 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
3031};
3032
3033/* Various instructions synthesized to support tls references. */
3034
3035/* ld r0, r0 in the X1 pipe, used for tls ie. */
3036static const bfd_byte insn_tls_ie_ld_X1[] = {
3037 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
3038};
3039
3040/* ld4s r0, r0 in the X1 pipe, used for tls ie. */
3041static const bfd_byte insn_tls_ie_ld4s_X1[] = {
3042 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
3043};
3044
3045/* add r0, r0, tp in various pipes, used for tls ie. */
3046static const bfd_byte insn_tls_ie_add_X0X1[] = {
3047 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
3048};
3049static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
3050 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
3051};
3052
3053/* addx r0, r0, tp in various pipes, used for tls ie. */
3054static const bfd_byte insn_tls_ie_addx_X0X1[] = {
3055 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
3056};
3057static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
3058 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
3059};
3060
3061/* move r0, r0 in various pipes, used for tls gd. */
3062static const bfd_byte insn_tls_gd_add_X0X1[] = {
3063 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
3064};
3065static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
3066 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
3067};
3068
3069static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
3070static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
3071
3072static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
3073static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
3074
3075static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
3076static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
3077
aa137e4d
NC		 3078/* Relocate an TILEGX ELF section.
3079
3080 The RELOCATE_SECTION function is called by the new ELF backend linker
3081 to handle the relocations for a section.
3082
3083 The relocs are always passed as Rela structures.
3084
3085 This function is responsible for adjusting the section contents as
3086 necessary, and (if generating a relocatable output file) adjusting
3087 the reloc addend as necessary.
3088
3089 This function does not have to worry about setting the reloc
3090 address or the reloc symbol index.
3091
3092 LOCAL_SYMS is a pointer to the swapped in local symbols.
3093
3094 LOCAL_SECTIONS is an array giving the section in the input file
3095 corresponding to the st_shndx field of each local symbol.
3096
3097 The global hash table entry for the global symbols can be found
3098 via elf_sym_hashes (input_bfd).
3099
3100 When generating relocatable output, this function must handle
3101 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
3102 going to be the section symbol corresponding to the output
3103 section, which means that the addend must be adjusted
3104 accordingly. */
3105
3106bfd_boolean
3107tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3108 bfd *input_bfd, asection *input_section,
3109 bfd_byte *contents, Elf_Internal_Rela *relocs,
3110 Elf_Internal_Sym *local_syms,
3111 asection **local_sections)
3112{
3113 struct tilegx_elf_link_hash_table *htab;
3114 Elf_Internal_Shdr *symtab_hdr;
3115 struct elf_link_hash_entry **sym_hashes;
3116 bfd_vma *local_got_offsets;
535127d2 3117 bfd_vma got_base;
aa137e4d
NC		 3118 asection *sreloc;
3119 Elf_Internal_Rela *rel;
3120 Elf_Internal_Rela *relend;
3121 int num_relocs;
3122
3123 htab = tilegx_elf_hash_table (info);
3124 BFD_ASSERT (htab != NULL);
3125 symtab_hdr = &elf_symtab_hdr (input_bfd);
3126 sym_hashes = elf_sym_hashes (input_bfd);
3127 local_got_offsets = elf_local_got_offsets (input_bfd);
3128
535127d2
WL		 3129 if (elf_hash_table (info)->hgot == NULL)
3130 got_base = 0;
3131 else
3132 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3133
aa137e4d
NC		 3134 sreloc = elf_section_data (input_section)->sreloc;
3135
3136 rel = relocs;
3137 num_relocs = input_section->reloc_count;
3138 relend = relocs + num_relocs;
3139 for (; rel < relend; rel++)
3140 {
3141 int r_type, tls_type;
6f7be959 3142 bfd_boolean is_tls_iele, is_tls_le;
aa137e4d
NC		 3143 reloc_howto_type *howto;
3144 unsigned long r_symndx;
3145 struct elf_link_hash_entry *h;
3146 Elf_Internal_Sym *sym;
3147 tilegx_create_func create_func;
3148 asection *sec;
3149 bfd_vma relocation;
3150 bfd_reloc_status_type r;
3151 const char *name;
3152 bfd_vma off;
3153 bfd_boolean is_plt = FALSE;
3154
3155 bfd_boolean unresolved_reloc;
3156
3157 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
3158 if (r_type == R_TILEGX_GNU_VTINHERIT
3159 || r_type == R_TILEGX_GNU_VTENTRY)
3160 continue;
3161
3162 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3163 {
3164 /* Not clear if we need to check here, but just be paranoid. */
4eca0228 3165 _bfd_error_handler
695344c0 3166 /* xgettext:c-format */
aa137e4d
NC		 3167 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
3168 input_bfd, r_type, input_section);
3169 bfd_set_error (bfd_error_bad_value);
3170 return FALSE;
3171 }
3172
3173 howto = tilegx_elf_howto_table + r_type;
3174
3175 /* This is a final link. */
3176 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3177 h = NULL;
3178 sym = NULL;
3179 sec = NULL;
3180 unresolved_reloc = FALSE;
3181 if (r_symndx < symtab_hdr->sh_info)
3182 {
3183 sym = local_syms + r_symndx;
3184 sec = local_sections[r_symndx];
3185 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3186 }
3187 else
3188 {
62d887d4
L		 3189 bfd_boolean warned ATTRIBUTE_UNUSED;
3190 bfd_boolean ignored ATTRIBUTE_UNUSED;
aa137e4d
NC		 3191
3192 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3193 r_symndx, symtab_hdr, sym_hashes,
3194 h, sec, relocation,
62d887d4 3195 unresolved_reloc, warned, ignored);
aa137e4d
NC		 3196 if (warned)
3197 {
3198 /* To avoid generating warning messages about truncated
3199 relocations, set the relocation's address to be the same as
3200 the start of this section. */
3201 if (input_section->output_section != NULL)
3202 relocation = input_section->output_section->vma;
3203 else
3204 relocation = 0;
3205 }
3206 }
3207
dbaa2011 3208 if (sec != NULL && discarded_section (sec))
aa137e4d 3209 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3210 rel, 1, relend, howto, 0, contents);
aa137e4d 3211
0e1862bb 3212 if (bfd_link_relocatable (info))
aa137e4d
NC		 3213 continue;
3214
3215 if (h != NULL)
3216 name = h->root.root.string;
3217 else
3218 {
3219 name = (bfd_elf_string_from_elf_section
3220 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3221 if (name == NULL || *name == '\0')
3222 name = bfd_section_name (input_bfd, sec);
3223 }
3224
6f7be959
WL		 3225 switch (r_type)
3226 {
3227 case R_TILEGX_TLS_GD_CALL:
3228 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3229 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3230 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3231 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3232 case R_TILEGX_IMM8_X0_TLS_ADD:
3233 case R_TILEGX_IMM8_Y0_TLS_ADD:
3234 case R_TILEGX_IMM8_X1_TLS_ADD:
3235 case R_TILEGX_IMM8_Y1_TLS_ADD:
3236 tls_type = GOT_UNKNOWN;
3237 if (h == NULL && local_got_offsets)
3238 tls_type =
3239 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3240 else if (h != NULL)
3241 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3242
0e1862bb 3243 is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
6f7be959 3244 is_tls_le = is_tls_iele && (!input_section->sec_flg0
0e1862bb 3245 && !bfd_link_pic (info)
6f7be959
WL		 3246 && (h == NULL || h->dynindx == -1));
3247
3248 if (r_type == R_TILEGX_TLS_GD_CALL)
3249 {
3250 if (is_tls_le)
3251 {
3252 /* GD -> LE */
3253 tilegx_replace_insn (contents + rel->r_offset,
3254 insn_mask_X1, insn_move_X0X1);
3255 continue;
3256 }
3257 else if (is_tls_iele)
3258 {
3259 /* GD -> IE */
3260 if (ABI_64_P (output_bfd))
3261 tilegx_replace_insn (contents + rel->r_offset,
3262 insn_mask_X1, insn_tls_ie_ld_X1);
3263 else
3264 tilegx_replace_insn (contents + rel->r_offset,
3265 insn_mask_X1, insn_tls_ie_ld4s_X1);
3266 continue;
3267 }
3268
3269 /* GD -> GD */
3270 h = (struct elf_link_hash_entry *)
3271 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3272 FALSE, TRUE);
3273 BFD_ASSERT (h != NULL);
3274 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3275 howto = tilegx_elf_howto_table + r_type;
3276 }
3277 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3278 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3279 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3280 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3281 {
3282 bfd_boolean is_pipe0 =
3283 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3284 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3285 bfd_boolean is_X0X1 =
3286 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3287 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3288 int dest_begin = is_pipe0 ? 0 : 31;
3289 int src_begin;
3290 const bfd_byte *insn;
84abc003 3291 const bfd_byte *mask = NULL;
6f7be959
WL		 3292
3293 if (is_tls_le)
3294 {
3295 /* 1. copy dest operand into the first source operand.
3296 2. change the opcode to "move". */
3297 src_begin = is_pipe0 ? 6 : 37;
3298 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3299
3300 switch (r_type)
3301 {
3302 case R_TILEGX_IMM8_X0_TLS_ADD:
3303 mask = insn_mask_X0_no_dest_no_srca;
3304 break;
3305 case R_TILEGX_IMM8_X1_TLS_ADD:
3306 mask = insn_mask_X1_no_dest_no_srca;
3307 break;
3308 case R_TILEGX_IMM8_Y0_TLS_ADD:
3309 mask = insn_mask_Y0_no_dest_no_srca;
3310 break;
3311 case R_TILEGX_IMM8_Y1_TLS_ADD:
3312 mask = insn_mask_Y1_no_dest_no_srca;
3313 break;
3314 }
3315 }
3316 else
3317 {
3318 /* 1. copy dest operand into the second source operand.
3319 2. change the opcode to "add". */
3320 src_begin = is_pipe0 ? 12 : 43;
3321 if (ABI_64_P (output_bfd))
3322 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3323 else
3324 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3325
3326 switch (r_type)
3327 {
3328 case R_TILEGX_IMM8_X0_TLS_ADD:
3329 mask = insn_mask_X0_no_operand;
3330 break;
3331 case R_TILEGX_IMM8_X1_TLS_ADD:
3332 mask = insn_mask_X1_no_operand;
3333 break;
3334 case R_TILEGX_IMM8_Y0_TLS_ADD:
3335 mask = insn_mask_Y0_no_operand;
3336 break;
3337 case R_TILEGX_IMM8_Y1_TLS_ADD:
3338 mask = insn_mask_Y1_no_operand;
3339 break;
3340 }
3341 }
3342
3343 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3344 src_begin, 6);
3345 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3346
3347 continue;
3348 }
3349 else
3350 {
3351 const bfd_byte *mask = NULL;
3352 const bfd_byte *add_insn = NULL;
3353 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3354
3355 switch (r_type)
3356 {
3357 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3358 add_insn = is_tls_iele
3359 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3360 : insn_tls_gd_add_X0X1;
3361 mask = insn_mask_X0_no_dest_no_srca;
3362 break;
3363 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3364 add_insn = is_tls_iele
3365 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3366 : insn_tls_gd_add_X0X1;
3367 mask = insn_mask_X1_no_dest_no_srca;
3368 break;
3369 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3370 add_insn = is_tls_iele
3371 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3372 : insn_tls_gd_add_Y0Y1;
3373 mask = insn_mask_Y0_no_dest_no_srca;
3374 break;
3375 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3376 add_insn = is_tls_iele
3377 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3378 : insn_tls_gd_add_Y0Y1;
3379 mask = insn_mask_Y1_no_dest_no_srca;
3380 break;
3381 }
3382
3383 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3384
3385 continue;
3386 }
3387 break;
3388 case R_TILEGX_TLS_IE_LOAD:
3389 if (!input_section->sec_flg0
0e1862bb 3390 && !bfd_link_pic (info)
6f7be959
WL		 3391 && (h == NULL || h->dynindx == -1))
3392 {
3393 /* IE -> LE */
3394 tilegx_replace_insn (contents + rel->r_offset,
3395 insn_mask_X1_no_dest_no_srca,
3396 insn_move_X0X1);
3397 }
3398 else
3399 {
3400 /* IE -> IE */
3401 if (ABI_64_P (output_bfd))
3402 tilegx_replace_insn (contents + rel->r_offset,
3403 insn_mask_X1_no_dest_no_srca,
3404 insn_tls_ie_ld_X1);
3405 else
3406 tilegx_replace_insn (contents + rel->r_offset,
3407 insn_mask_X1_no_dest_no_srca,
3408 insn_tls_ie_ld4s_X1);
3409 }
3410 continue;
3411 break;
3412 default:
3413 break;
3414 }
3415
aa137e4d
NC		 3416 switch (r_type)
3417 {
3418 case R_TILEGX_IMM16_X0_HW0_GOT:
3419 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 3420 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3421 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3422 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3423 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 3424 /* Relocation is to the entry for this symbol in the global
3425 offset table. */
3426 if (htab->elf.sgot == NULL)
3427 abort ();
3428
3429 if (h != NULL)
3430 {
3431 bfd_boolean dyn;
3432
3433 off = h->got.offset;
3434 BFD_ASSERT (off != (bfd_vma) -1);
3435 dyn = elf_hash_table (info)->dynamic_sections_created;
3436
0e1862bb
L		 3437 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3438 bfd_link_pic (info),
3439 h)
3440 || (bfd_link_pic (info)
aa137e4d
NC		 3441 && SYMBOL_REFERENCES_LOCAL (info, h)))
3442 {
3443 /* This is actually a static link, or it is a
3444 -Bsymbolic link and the symbol is defined
3445 locally, or the symbol was forced to be local
3446 because of a version file. We must initialize
3447 this entry in the global offset table. Since the
3448 offset must always be a multiple
3449 of 8 for 64-bit, we use the least significant bit
3450 to record whether we have initialized it already.
3451
3452 When doing a dynamic link, we create a .rela.got
3453 relocation entry to initialize the value. This
3454 is done in the finish_dynamic_symbol routine. */
3455 if ((off & 1) != 0)
3456 off &= ~1;
3457 else
3458 {
3459 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3460 htab->elf.sgot->contents + off);
3461 h->got.offset |= 1;
3462 }
3463 }
3464 else
3465 unresolved_reloc = FALSE;
3466 }
3467 else
3468 {
3469 BFD_ASSERT (local_got_offsets != NULL
3470 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3471
3472 off = local_got_offsets[r_symndx];
3473
3474 /* The offset must always be a multiple of 8 on 64-bit.
3475 We use the least significant bit to record
3476 whether we have already processed this entry. */
3477 if ((off & 1) != 0)
3478 off &= ~1;
3479 else
3480 {
0e1862bb 3481 if (bfd_link_pic (info))
aa137e4d
NC		 3482 {
3483 asection *s;
3484 Elf_Internal_Rela outrel;
3485
3486 /* We need to generate a R_TILEGX_RELATIVE reloc
3487 for the dynamic linker. */
3488 s = htab->elf.srelgot;
3489 BFD_ASSERT (s != NULL);
3490
3491 outrel.r_offset = (htab->elf.sgot->output_section->vma
3492 + htab->elf.sgot->output_offset
3493 + off);
3494 outrel.r_info =
3495 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3496 outrel.r_addend = relocation;
3497 relocation = 0;
3498 tilegx_elf_append_rela (output_bfd, s, &outrel);
3499 }
3500
3501 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3502 htab->elf.sgot->contents + off);
3503 local_got_offsets[r_symndx] |= 1;
3504 }
3505 }
535127d2 3506 relocation = off - got_base;
aa137e4d
NC		 3507 break;
3508
3509 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 3510 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3511 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3512 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3513 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3514 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3515 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3516 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3517 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3518 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3519 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3520 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3521 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3522 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3523 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 3524 /* Relocation is to the entry for this symbol in the
3525 procedure linkage table. */
3526 BFD_ASSERT (h != NULL);
3527
3528 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3529 {
3530 /* We didn't make a PLT entry for this symbol. This
3531 happens when statically linking PIC code, or when
3532 using -Bsymbolic. */
3533 break;
3534 }
3535
3536 relocation = (htab->elf.splt->output_section->vma
3537 + htab->elf.splt->output_offset
3538 + h->plt.offset);
3539 unresolved_reloc = FALSE;
3540 break;
3541
3542 case R_TILEGX_64_PCREL:
3543 case R_TILEGX_32_PCREL:
3544 case R_TILEGX_16_PCREL:
3545 case R_TILEGX_8_PCREL:
3546 case R_TILEGX_IMM16_X0_HW0_PCREL:
3547 case R_TILEGX_IMM16_X1_HW0_PCREL:
3548 case R_TILEGX_IMM16_X0_HW1_PCREL:
3549 case R_TILEGX_IMM16_X1_HW1_PCREL:
3550 case R_TILEGX_IMM16_X0_HW2_PCREL:
3551 case R_TILEGX_IMM16_X1_HW2_PCREL:
3552 case R_TILEGX_IMM16_X0_HW3_PCREL:
3553 case R_TILEGX_IMM16_X1_HW3_PCREL:
3554 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3555 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3556 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3557 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3558 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3559 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3560 if (h != NULL
3561 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3562 break;
3563 /* Fall through. */
3564 case R_TILEGX_64:
3565 case R_TILEGX_32:
3566 case R_TILEGX_16:
3567 case R_TILEGX_8:
3568 case R_TILEGX_HW0:
3569 case R_TILEGX_HW1:
3570 case R_TILEGX_HW2:
3571 case R_TILEGX_HW3:
3572 case R_TILEGX_HW0_LAST:
3573 case R_TILEGX_HW1_LAST:
3574 case R_TILEGX_HW2_LAST:
3575 case R_TILEGX_COPY:
3576 case R_TILEGX_GLOB_DAT:
3577 case R_TILEGX_JMP_SLOT:
3578 case R_TILEGX_RELATIVE:
3579 case R_TILEGX_BROFF_X1:
3580 case R_TILEGX_JUMPOFF_X1:
3581 case R_TILEGX_IMM8_X0:
3582 case R_TILEGX_IMM8_Y0:
3583 case R_TILEGX_IMM8_X1:
3584 case R_TILEGX_IMM8_Y1:
3585 case R_TILEGX_DEST_IMM8_X1:
3586 case R_TILEGX_MT_IMM14_X1:
3587 case R_TILEGX_MF_IMM14_X1:
3588 case R_TILEGX_MMSTART_X0:
3589 case R_TILEGX_MMEND_X0:
3590 case R_TILEGX_SHAMT_X0:
3591 case R_TILEGX_SHAMT_X1:
3592 case R_TILEGX_SHAMT_Y0:
3593 case R_TILEGX_SHAMT_Y1:
3594 case R_TILEGX_IMM16_X0_HW0:
3595 case R_TILEGX_IMM16_X1_HW0:
3596 case R_TILEGX_IMM16_X0_HW1:
3597 case R_TILEGX_IMM16_X1_HW1:
3598 case R_TILEGX_IMM16_X0_HW2:
3599 case R_TILEGX_IMM16_X1_HW2:
3600 case R_TILEGX_IMM16_X0_HW3:
3601 case R_TILEGX_IMM16_X1_HW3:
3602 case R_TILEGX_IMM16_X0_HW0_LAST:
3603 case R_TILEGX_IMM16_X1_HW0_LAST:
3604 case R_TILEGX_IMM16_X0_HW1_LAST:
3605 case R_TILEGX_IMM16_X1_HW1_LAST:
3606 case R_TILEGX_IMM16_X0_HW2_LAST:
3607 case R_TILEGX_IMM16_X1_HW2_LAST:
3608 if ((input_section->flags & SEC_ALLOC) == 0)
3609 break;
3610
0e1862bb 3611 if ((bfd_link_pic (info)
aa137e4d
NC		 3612 && (h == NULL
3613 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3614 || h->root.type != bfd_link_hash_undefweak)
3615 && (! howto->pc_relative
3616 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3617 || (!bfd_link_pic (info)
aa137e4d
NC		 3618 && h != NULL
3619 && h->dynindx != -1
3620 && !h->non_got_ref
3621 && ((h->def_dynamic
3622 && !h->def_regular)
3623 || h->root.type == bfd_link_hash_undefweak
3624 || h->root.type == bfd_link_hash_undefined)))
3625 {
3626 Elf_Internal_Rela outrel;
3627 bfd_boolean skip, relocate = FALSE;
3628
3629 /* When generating a shared object, these relocations
3630 are copied into the output file to be resolved at run
3631 time. */
3632
3633 BFD_ASSERT (sreloc != NULL);
3634
3635 skip = FALSE;
3636
3637 outrel.r_offset =
3638 _bfd_elf_section_offset (output_bfd, info, input_section,
3639 rel->r_offset);
3640 if (outrel.r_offset == (bfd_vma) -1)
3641 skip = TRUE;
3642 else if (outrel.r_offset == (bfd_vma) -2)
3643 skip = TRUE, relocate = TRUE;
3644 outrel.r_offset += (input_section->output_section->vma
3645 + input_section->output_offset);
3646
3647 switch (r_type)
3648 {
3649 case R_TILEGX_64_PCREL:
3650 case R_TILEGX_32_PCREL:
3651 case R_TILEGX_16_PCREL:
3652 case R_TILEGX_8_PCREL:
3653 /* If the symbol is not dynamic, we should not keep
3654 a dynamic relocation. But an .rela.* slot has been
3655 allocated for it, output R_TILEGX_NONE.
3656 FIXME: Add code tracking needed dynamic relocs as
3657 e.g. i386 has. */
3658 if (h->dynindx == -1)
3659 skip = TRUE, relocate = TRUE;
3660 break;
3661 }
3662
3663 if (skip)
3664 memset (&outrel, 0, sizeof outrel);
3665 /* h->dynindx may be -1 if the symbol was marked to
3666 become local. */
3667 else if (h != NULL &&
3668 h->dynindx != -1
3669 && (! is_plt
0e1862bb 3670 || !bfd_link_pic (info)
aa137e4d
NC		 3671 || !SYMBOLIC_BIND (info, h)
3672 || !h->def_regular))
3673 {
3674 BFD_ASSERT (h->dynindx != -1);
3675 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3676 outrel.r_addend = rel->r_addend;
3677 }
3678 else
3679 {
3680 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3681 {
3682 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3683 R_TILEGX_RELATIVE);
3684 outrel.r_addend = relocation + rel->r_addend;
3685 }
3686 else
3687 {
3688 long indx;
3689
3690 outrel.r_addend = relocation + rel->r_addend;
3691
3692 if (is_plt)
3693 sec = htab->elf.splt;
3694
3695 if (bfd_is_abs_section (sec))
3696 indx = 0;
3697 else if (sec == NULL || sec->owner == NULL)
3698 {
3699 bfd_set_error (bfd_error_bad_value);
3700 return FALSE;
3701 }
3702 else
3703 {
3704 asection *osec;
3705
3706 /* We are turning this relocation into one
3707 against a section symbol. It would be
3708 proper to subtract the symbol's value,
3709 osec->vma, from the emitted reloc addend,
3710 but ld.so expects buggy relocs. */
3711 osec = sec->output_section;
3712 indx = elf_section_data (osec)->dynindx;
3713
3714 if (indx == 0)
3715 {
3716 osec = htab->elf.text_index_section;
3717 indx = elf_section_data (osec)->dynindx;
3718 }
3719
3720 /* FIXME: we really should be able to link non-pic
3721 shared libraries. */
3722 if (indx == 0)
3723 {
3724 BFD_FAIL ();
4eca0228 3725 _bfd_error_handler
aa137e4d
NC		 3726 (_("%B: probably compiled without -fPIC?"),
3727 input_bfd);
3728 bfd_set_error (bfd_error_bad_value);
3729 return FALSE;
3730 }
3731 }
3732
3733 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3734 r_type);
3735 }
3736 }
3737
3738 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3739
3740 /* This reloc will be computed at runtime, so there's no
3741 need to do anything now. */
3742 if (! relocate)
3743 continue;
3744 }
3745 break;
3746
6f7be959
WL		 3747 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3748 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3749 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3750 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3751 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3752 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
0e1862bb 3753 if (bfd_link_pic (info))
6f7be959
WL		 3754 {
3755 Elf_Internal_Rela outrel;
3756 bfd_boolean skip;
3757
3758 BFD_ASSERT (sreloc != NULL);
3759 skip = FALSE;
3760 outrel.r_offset =
3761 _bfd_elf_section_offset (output_bfd, info, input_section,
3762 rel->r_offset);
3763 if (outrel.r_offset == (bfd_vma) -1)
3764 skip = TRUE;
3765 else if (outrel.r_offset == (bfd_vma) -2)
3766 skip = TRUE;
3767 outrel.r_offset += (input_section->output_section->vma
3768 + input_section->output_offset);
3769 if (skip)
3770 memset (&outrel, 0, sizeof outrel);
3771 else
3772 {
3773 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3774 outrel.r_addend = relocation - dtpoff_base (info)
3775 + rel->r_addend;
3776 }
3777
3778 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3779 continue;
3780 }
3781 relocation = tpoff (info, relocation);
3782 break;
3783
aa137e4d
NC		 3784 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3785 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3786 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3787 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3788 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3789 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3790 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3791 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3792 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3793 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3794 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3795 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
6f7be959
WL		 3796 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3797 input_section->sec_flg0);
3798 tls_type = GOT_UNKNOWN;
aa137e4d 3799 if (h == NULL && local_got_offsets)
6f7be959
WL		 3800 tls_type =
3801 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
aa137e4d 3802 else if (h != NULL)
6f7be959
WL		 3803 {
3804 tls_type = tilegx_elf_hash_entry(h)->tls_type;
0e1862bb
L		 3805 if (!bfd_link_pic (info)
3806 && h->dynindx == -1
3807 && tls_type == GOT_TLS_IE)
6f7be959
WL		 3808 r_type = (!input_section->sec_flg0
3809 ? tilegx_tls_translate_to_le (r_type)
3810 : tilegx_tls_translate_to_ie (r_type));
3811 }
aa137e4d
NC		 3812
3813 if (tls_type == GOT_TLS_IE)
6f7be959
WL		 3814 r_type = tilegx_tls_translate_to_ie (r_type);
3815
3816 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3817 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3818 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3819 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3820 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3821 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3822 {
3823 relocation = tpoff (info, relocation);
3824 break;
3825 }
aa137e4d
NC		 3826
3827 if (h != NULL)
3828 {
3829 off = h->got.offset;
3830 h->got.offset |= 1;
3831 }
3832 else
3833 {
3834 BFD_ASSERT (local_got_offsets != NULL);
3835 off = local_got_offsets[r_symndx];
3836 local_got_offsets[r_symndx] |= 1;
3837 }
3838
3839 if (htab->elf.sgot == NULL)
3840 abort ();
3841
3842 if ((off & 1) != 0)
3843 off &= ~1;
3844 else
3845 {
3846 Elf_Internal_Rela outrel;
3847 int indx = 0;
3848 bfd_boolean need_relocs = FALSE;
3849
3850 if (htab->elf.srelgot == NULL)
3851 abort ();
3852
3853 if (h != NULL)
3854 {
3855 bfd_boolean dyn;
3856 dyn = htab->elf.dynamic_sections_created;
3857
0e1862bb
L		 3858 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3859 bfd_link_pic (info),
3860 h)
3861 && (!bfd_link_pic (info)
aa137e4d
NC		 3862 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3863 {
3864 indx = h->dynindx;
3865 }
3866 }
3867
3868 /* The GOT entries have not been initialized yet. Do it
3869 now, and emit any relocations. */
0e1862bb 3870 if ((bfd_link_pic (info) || indx != 0)
aa137e4d
NC		 3871 && (h == NULL
3872 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3873 || h->root.type != bfd_link_hash_undefweak))
3874 need_relocs = TRUE;
3875
3876 switch (r_type)
3877 {
3878 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3879 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3880 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3881 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3882 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3883 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 3884 if (need_relocs) {
3885 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3886 htab->elf.sgot->contents + off);
3887 outrel.r_offset = (htab->elf.sgot->output_section->vma
3888 + htab->elf.sgot->output_offset + off);
3889 outrel.r_addend = 0;
3890 if (indx == 0)
3891 outrel.r_addend = relocation - dtpoff_base (info);
3892 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3893 TILEGX_ELF_TPOFF_RELOC (htab));
3894 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3895 } else {
3896 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3897 tpoff (info, relocation),
3898 htab->elf.sgot->contents + off);
3899 }
3900 break;
3901
3902 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3903 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3904 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3905 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3906 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3907 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3908 if (need_relocs) {
3909 outrel.r_offset = (htab->elf.sgot->output_section->vma
3910 + htab->elf.sgot->output_offset + off);
3911 outrel.r_addend = 0;
3912 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3913 TILEGX_ELF_DTPMOD_RELOC (htab));
3914 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3915 htab->elf.sgot->contents + off);
3916 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3917 if (indx == 0)
3918 {
3919 BFD_ASSERT (! unresolved_reloc);
3920 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3921 relocation - dtpoff_base (info),
3922 (htab->elf.sgot->contents + off +
3923 TILEGX_ELF_WORD_BYTES (htab)));
3924 }
3925 else
3926 {
3927 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3928 (htab->elf.sgot->contents + off +
3929 TILEGX_ELF_WORD_BYTES (htab)));
3930 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3931 TILEGX_ELF_DTPOFF_RELOC (htab));
3932 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3933 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3934 }
3935 }
3936
3937 else {
3938 /* If we are not emitting relocations for a
3939 general dynamic reference, then we must be in a
3940 static link or an executable link with the
3941 symbol binding locally. Mark it as belonging
3942 to module 1, the executable. */
3943 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3944 htab->elf.sgot->contents + off );
3945 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3946 relocation - dtpoff_base (info),
3947 htab->elf.sgot->contents + off +
3948 TILEGX_ELF_WORD_BYTES (htab));
3949 }
3950 break;
3951 }
3952 }
3953
3954 if (off >= (bfd_vma) -2)
3955 abort ();
3956
535127d2 3957 relocation = off - got_base;
aa137e4d
NC		 3958 unresolved_reloc = FALSE;
3959 howto = tilegx_elf_howto_table + r_type;
3960 break;
3961
3962 default:
3963 break;
3964 }
3965
3966 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3967 because such sections are not SEC_ALLOC and thus ld.so will
3968 not process them. */
3969 if (unresolved_reloc
3970 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3971 && h->def_dynamic)
3972 && _bfd_elf_section_offset (output_bfd, info, input_section,
3973 rel->r_offset) != (bfd_vma) -1)
4eca0228 3974 _bfd_error_handler
695344c0 3975 /* xgettext:c-format */
aa137e4d
NC		 3976 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3977 input_bfd,
3978 input_section,
3979 (long) rel->r_offset,
3980 howto->name,
3981 h->root.root.string);
3982
3983 r = bfd_reloc_continue;
3984
3985 /* Get the operand creation function, if any. */
3986 create_func = reloc_to_create_func[r_type];
3987 if (create_func == NULL)
3988 {
3989 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3990 contents, rel->r_offset,
3991 relocation, rel->r_addend);
3992 }
3993 else
3994 {
3995 if (howto->pc_relative)
3996 {
3997 relocation -=
3998 input_section->output_section->vma + input_section->output_offset;
3999 if (howto->pcrel_offset)
4000 relocation -= rel->r_offset;
4001 }
4002
4003 bfd_byte *data;
4004
4005 /* Add the relocation addend if any to the final target value */
4006 relocation += rel->r_addend;
4007
4008 /* Do basic range checking */
4009 r = bfd_check_overflow (howto->complain_on_overflow,
4010 howto->bitsize,
4011 howto->rightshift,
4012 TILEGX_ELF_WORD_BYTES (htab) * 8,
4013 relocation);
4014
4015 /*
4016 * Write the relocated value out into the raw section data.
4017 * Don't put a relocation out in the .rela section.
4018 */
4019 tilegx_bundle_bits mask = create_func(-1);
4020 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
4021
4022 /* Only touch bytes while the mask is not 0, so we
4023 don't write to out of bounds memory if this is actually
4024 a 16-bit switch instruction. */
4025 for (data = contents + rel->r_offset; mask != 0; data++)
4026 {
4027 bfd_byte byte_mask = (bfd_byte)mask;
4028 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
4029 mask >>= 8;
4030 value >>= 8;
4031 }
4032 }
4033
4034 if (r != bfd_reloc_ok)
4035 {
4036 const char *msg = NULL;
4037
4038 switch (r)
4039 {
4040 case bfd_reloc_overflow:
1a72702b 4041 (*info->callbacks->reloc_overflow)
aa137e4d
NC		 4042 (info, (h ? &h->root : NULL), name, howto->name,
4043 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4044 break;
4045
4046 case bfd_reloc_undefined:
1a72702b
AM		 4047 (*info->callbacks->undefined_symbol)
4048 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
aa137e4d
NC		 4049 break;
4050
4051 case bfd_reloc_outofrange:
4052 msg = _("internal error: out of range error");
4053 break;
4054
4055 case bfd_reloc_notsupported:
4056 msg = _("internal error: unsupported relocation error");
4057 break;
4058
4059 case bfd_reloc_dangerous:
4060 msg = _("internal error: dangerous relocation");
4061 break;
4062
4063 default:
4064 msg = _("internal error: unknown error");
4065 break;
4066 }
4067
4068 if (msg)
1a72702b
AM		 4069 (*info->callbacks->warning) (info, msg, name, input_bfd,
4070 input_section, rel->r_offset);
aa137e4d
NC		 4071 }
4072 }
4073
4074 return TRUE;
4075}
4076
4077/* Finish up dynamic symbol handling. We set the contents of various
4078 dynamic sections here. */
4079
4080bfd_boolean
4081tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
4082 struct bfd_link_info *info,
4083 struct elf_link_hash_entry *h,
4084 Elf_Internal_Sym *sym)
4085{
4086 struct tilegx_elf_link_hash_table *htab;
4087
4088 htab = tilegx_elf_hash_table (info);
4089 BFD_ASSERT (htab != NULL);
4090
4091 if (h->plt.offset != (bfd_vma) -1)
4092 {
4093 asection *splt;
4094 asection *srela;
4095 asection *sgotplt;
4096 Elf_Internal_Rela rela;
4097 bfd_byte *loc;
4098 bfd_vma r_offset;
4099 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
4100
4101
4102 int rela_index;
4103
4104 /* This symbol has an entry in the PLT. Set it up. */
4105
4106 BFD_ASSERT (h->dynindx != -1);
4107
4108 splt = htab->elf.splt;
4109 srela = htab->elf.srelplt;
4110 sgotplt = htab->elf.sgotplt;
4111
4112 if (splt == NULL || srela == NULL)
4113 abort ();
4114
4115 /* Fill in the entry in the procedure linkage table. */
4116 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
4117 h->plt.offset, &r_offset);
4118
4119 /* Fill in the entry in the global offset table, which initially points
4120 to the beginning of the plt. */
4121 TILEGX_ELF_PUT_WORD (htab, output_bfd,
4122 splt->output_section->vma + splt->output_offset,
4123 sgotplt->contents + r_offset);
4124
4125 /* Fill in the entry in the .rela.plt section. */
4126 rela.r_offset = (sgotplt->output_section->vma
4127 + sgotplt->output_offset
4128 + r_offset);
4129 rela.r_addend = 0;
4130 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
4131
4132 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
4133 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4134
4135 if (!h->def_regular)
4136 {
4137 /* Mark the symbol as undefined, rather than as defined in
4138 the .plt section. Leave the value alone. */
4139 sym->st_shndx = SHN_UNDEF;
4140 /* If the symbol is weak, we do need to clear the value.
4141 Otherwise, the PLT entry would provide a definition for
4142 the symbol even if the symbol wasn't defined anywhere,
4143 and so the symbol would never be NULL. */
4144 if (!h->ref_regular_nonweak)
4145 sym->st_value = 0;
4146 }
4147 }
4148
4149 if (h->got.offset != (bfd_vma) -1
4150 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4151 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4152 {
4153 asection *sgot;
4154 asection *srela;
4155 Elf_Internal_Rela rela;
4156
4157 /* This symbol has an entry in the GOT. Set it up. */
4158
4159 sgot = htab->elf.sgot;
4160 srela = htab->elf.srelgot;
4161 BFD_ASSERT (sgot != NULL && srela != NULL);
4162
4163 rela.r_offset = (sgot->output_section->vma
4164 + sgot->output_offset
4165 + (h->got.offset &~ (bfd_vma) 1));
4166
4167 /* If this is a -Bsymbolic link, and the symbol is defined
4168 locally, we just want to emit a RELATIVE reloc. Likewise if
4169 the symbol was forced to be local because of a version file.
4170 The entry in the global offset table will already have been
4171 initialized in the relocate_section function. */
0e1862bb 4172 if (bfd_link_pic (info)
aa137e4d
NC		 4173 && (info->symbolic || h->dynindx == -1)
4174 && h->def_regular)
4175 {
4176 asection *sec = h->root.u.def.section;
4177 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4178 rela.r_addend = (h->root.u.def.value
4179 + sec->output_section->vma
4180 + sec->output_offset);
4181 }
4182 else
4183 {
4184 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4185 rela.r_addend = 0;
4186 }
4187
4188 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4189 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4190 tilegx_elf_append_rela (output_bfd, srela, &rela);
4191 }
4192
4193 if (h->needs_copy)
4194 {
4195 asection *s;
4196 Elf_Internal_Rela rela;
4197
4198 /* This symbols needs a copy reloc. Set it up. */
4199 BFD_ASSERT (h->dynindx != -1);
4200
afbf7e8e 4201 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4202 s = htab->elf.sreldynrelro;
4203 else
4204 s = htab->elf.srelbss;
aa137e4d
NC		 4205 BFD_ASSERT (s != NULL);
4206
4207 rela.r_offset = (h->root.u.def.value
4208 + h->root.u.def.section->output_section->vma
4209 + h->root.u.def.section->output_offset);
4210 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4211 rela.r_addend = 0;
4212 tilegx_elf_append_rela (output_bfd, s, &rela);
4213 }
4214
4215 /* Mark some specially defined symbols as absolute. */
9637f6ef 4216 if (h == htab->elf.hdynamic
aa137e4d
NC		 4217 || (h == htab->elf.hgot || h == htab->elf.hplt))
4218 sym->st_shndx = SHN_ABS;
4219
4220 return TRUE;
4221}
4222
4223/* Finish up the dynamic sections. */
4224
4225static bfd_boolean
4226tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4227 bfd *dynobj, asection *sdyn,
4228 asection *splt ATTRIBUTE_UNUSED)
4229{
4230 struct tilegx_elf_link_hash_table *htab;
4231 const struct elf_backend_data *bed;
4232 bfd_byte *dyncon, *dynconend;
4233 size_t dynsize;
aa137e4d
NC		 4234
4235 htab = tilegx_elf_hash_table (info);
4236 BFD_ASSERT (htab != NULL);
4237 bed = get_elf_backend_data (output_bfd);
4238 dynsize = bed->s->sizeof_dyn;
4239 dynconend = sdyn->contents + sdyn->size;
aa137e4d
NC		 4240
4241 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4242 {
4243 Elf_Internal_Dyn dyn;
4244 asection *s;
4245
4246 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4247
4248 switch (dyn.d_tag)
4249 {
4250 case DT_PLTGOT:
4251 s = htab->elf.sgotplt;
4252 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4253 break;
4254 case DT_JMPREL:
4255 s = htab->elf.srelplt;
4256 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4257 break;
4258 case DT_PLTRELSZ:
4259 s = htab->elf.srelplt;
4260 dyn.d_un.d_val = s->size;
4261 break;
4262 default:
4263 continue;
4264 }
4265
4266 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4267 }
4268 return TRUE;
4269}
4270
4271bfd_boolean
4272tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4273 struct bfd_link_info *info)
4274{
4275 bfd *dynobj;
4276 asection *sdyn;
4277 struct tilegx_elf_link_hash_table *htab;
663b5850 4278 size_t pad_size;
aa137e4d
NC		 4279
4280 htab = tilegx_elf_hash_table (info);
4281 BFD_ASSERT (htab != NULL);
4282 dynobj = htab->elf.dynobj;
4283
3d4d4302 4284 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
aa137e4d
NC		 4285
4286 if (elf_hash_table (info)->dynamic_sections_created)
4287 {
4288 asection *splt;
4289 bfd_boolean ret;
4290
3d4d4302 4291 splt = htab->elf.splt;
aa137e4d
NC		 4292 BFD_ASSERT (splt != NULL && sdyn != NULL);
4293
4294 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4295
4296 if (ret != TRUE)
4297 return ret;
4298
4299 /* Fill in the head and tail entries in the procedure linkage table. */
4300 if (splt->size > 0)
4301 {
4302 memcpy (splt->contents,
4303 ABI_64_P (output_bfd) ?
4304 tilegx64_plt0_entry : tilegx32_plt0_entry,
4305 PLT_HEADER_SIZE);
4306
663b5850
WL		 4307 memcpy (splt->contents + splt->size
4308 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
aa137e4d
NC		 4309 ABI_64_P (output_bfd) ?
4310 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4311 PLT_TAIL_SIZE);
663b5850
WL		 4312 /* Add padding so that the plt section is a multiple of its
4313 entry size. */
4314 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4315 memset (splt->contents + splt->size - pad_size, 0, pad_size);
aa137e4d
NC		 4316 }
4317
4318 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4319 = PLT_ENTRY_SIZE;
4320 }
4321
4322 if (htab->elf.sgotplt)
4323 {
4324 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4325 {
4eca0228 4326 _bfd_error_handler
aa137e4d
NC		 4327 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4328 return FALSE;
4329 }
4330
4331 if (htab->elf.sgotplt->size > 0)
4332 {
4333 /* Write the first two entries in .got.plt, needed for the dynamic
4334 linker. */
4335 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4336 htab->elf.sgotplt->contents);
4337 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4338 htab->elf.sgotplt->contents
4339 + GOT_ENTRY_SIZE (htab));
4340 }
4341
4342 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4343 GOT_ENTRY_SIZE (htab);
4344 }
4345
4346 if (htab->elf.sgot)
4347 {
4348 if (htab->elf.sgot->size > 0)
4349 {
4350 /* Set the first entry in the global offset table to the address of
4351 the dynamic section. */
4352 bfd_vma val = (sdyn ?
4353 sdyn->output_section->vma + sdyn->output_offset :
4354 0);
4355 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4356 htab->elf.sgot->contents);
4357 }
4358
4359 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4360 GOT_ENTRY_SIZE (htab);
4361 }
4362
4363 return TRUE;
4364}
4365
4366\f
4367
4368/* Return address for Ith PLT stub in section PLT, for relocation REL
4369 or (bfd_vma) -1 if it should not be included. */
4370
4371bfd_vma
4372tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4373 const arelent *rel ATTRIBUTE_UNUSED)
4374{
4375 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4376}
4377
4378enum elf_reloc_type_class
7e612e98
AM		 4379tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4380 const asection *rel_sec ATTRIBUTE_UNUSED,
4381 const Elf_Internal_Rela *rela)
aa137e4d
NC		 4382{
4383 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4384 {
4385 case R_TILEGX_RELATIVE:
4386 return reloc_class_relative;
4387 case R_TILEGX_JMP_SLOT:
4388 return reloc_class_plt;
4389 case R_TILEGX_COPY:
4390 return reloc_class_copy;
4391 default:
4392 return reloc_class_normal;
4393 }
4394}
4395
4396int
4397tilegx_additional_program_headers (bfd *abfd,
4398 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4399{
4400 /* Each .intrpt section specified by the user adds another PT_LOAD
4401 header since the sections are discontiguous. */
4402 static const char intrpt_sections[4][9] =
4403 {
4404 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4405 };
4406 int count = 0;
4407 int i;
4408
4409 for (i = 0; i < 4; i++)
4410 {
4411 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4412 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4413 ++count;
4414 }
4415
4416 /* Add four "padding" headers in to leave room in case a custom linker
4417 script does something fancy. Otherwise ld complains that it ran
4418 out of program headers and refuses to link. */
4419 count += 4;
4420
4421 return count;
4422}
4423
4424
4425bfd_boolean
50e03d47 4426_bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
aa137e4d 4427{
50e03d47 4428 bfd *obfd = info->output_bfd;
aa137e4d
NC		 4429 const char *targ1 = bfd_get_target (ibfd);
4430 const char *targ2 = bfd_get_target (obfd);
4431
4432 if (strcmp (targ1, targ2) != 0)
4433 {
4eca0228 4434 _bfd_error_handler
695344c0 4435 /* xgettext:c-format */
aa137e4d
NC		 4436 (_("%B: Cannot link together %s and %s objects."),
4437 ibfd, targ1, targ2);
4438 bfd_set_error (bfd_error_bad_value);
4439 return FALSE;
4440 }
4441
4442 return TRUE;
4443}
GDB Binutils - Deliverables
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