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[deliverable/binutils-gdb.git] / bfd / elfxx-tilegx.c
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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{
28095894 1625 if (!bfd_link_executable (info))
6f7be959
WL		 1626 return r_type;
1627
1628 if (is_local && !disable_le_transition)
1629 return tilegx_tls_translate_to_le (r_type);
1630 else
1631 return tilegx_tls_translate_to_ie (r_type);
1632}
1633
aa137e4d
NC		 1634/* Look through the relocs for a section during the first phase, and
1635 allocate space in the global offset table or procedure linkage
1636 table. */
1637
1638bfd_boolean
1639tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1640 asection *sec, const Elf_Internal_Rela *relocs)
1641{
1642 struct tilegx_elf_link_hash_table *htab;
1643 Elf_Internal_Shdr *symtab_hdr;
1644 struct elf_link_hash_entry **sym_hashes;
aa137e4d
NC		 1645 const Elf_Internal_Rela *rel;
1646 const Elf_Internal_Rela *rel_end;
1647 asection *sreloc;
1648 int num_relocs;
6f7be959 1649 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
aa137e4d 1650
0e1862bb 1651 if (bfd_link_relocatable (info))
aa137e4d
NC		 1652 return TRUE;
1653
1654 htab = tilegx_elf_hash_table (info);
1655 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1656 sym_hashes = elf_sym_hashes (abfd);
aa137e4d
NC		 1657
1658 sreloc = NULL;
1659
1660 num_relocs = sec->reloc_count;
1661
1662 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1663
1664 if (htab->elf.dynobj == NULL)
1665 htab->elf.dynobj = abfd;
1666
1667 rel_end = relocs + num_relocs;
6f7be959
WL		 1668
1669 /* Check whether to do optimization to transform TLS GD/IE
1670 referehces to TLS LE. We disable it if we're linking with old
1671 TLS code sequences that do not support such optimization. Old
1672 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1673 no tls_add relocations. */
1674 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1675 {
1676 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1677 switch (r_type)
1678 {
1679 case R_TILEGX_TLS_GD_CALL:
1680 case R_TILEGX_TLS_IE_LOAD:
1681 has_tls_gd_or_ie = TRUE;
1682 break;
1683 case R_TILEGX_IMM8_X0_TLS_ADD:
1684 case R_TILEGX_IMM8_Y0_TLS_ADD:
1685 case R_TILEGX_IMM8_X1_TLS_ADD:
1686 case R_TILEGX_IMM8_Y1_TLS_ADD:
1687 has_tls_add = TRUE;
1688 break;
1689 }
1690 }
1691
1692 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1693 htab->disable_le_transition |= sec->sec_flg0;
1694
aa137e4d
NC		 1695 for (rel = relocs; rel < rel_end; rel++)
1696 {
1697 unsigned int r_type;
d42c267e 1698 unsigned int r_symndx;
aa137e4d
NC		 1699 struct elf_link_hash_entry *h;
1700 int tls_type;
1701
1702 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1703 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1704
1705 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1706 {
695344c0 1707 /* xgettext:c-format */
4eca0228
AM		 1708 _bfd_error_handler (_("%B: bad symbol index: %d"),
1709 abfd, r_symndx);
aa137e4d
NC		 1710 return FALSE;
1711 }
1712
1713 if (r_symndx < symtab_hdr->sh_info)
1714 h = NULL;
1715 else
1716 {
1717 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1718 while (h->root.type == bfd_link_hash_indirect
1719 || h->root.type == bfd_link_hash_warning)
1720 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1721 }
1722
6f7be959
WL		 1723 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1724 sec->sec_flg0);
aa137e4d
NC		 1725 switch (r_type)
1726 {
6f7be959
WL		 1727 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1728 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1729 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1730 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1731 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1732 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
28095894 1733 if (!bfd_link_executable (info))
6f7be959
WL		 1734 goto r_tilegx_plt32;
1735 break;
1736
aa137e4d
NC		 1737 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1738 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 1739 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1740 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1741 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1742 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
0e1862bb 1743 BFD_ASSERT (bfd_link_pic (info));
6f7be959 1744 tls_type = GOT_TLS_GD;
aa137e4d
NC		 1745 goto have_got_reference;
1746
1747 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1748 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 1749 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1750 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1751 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1752 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d 1753 tls_type = GOT_TLS_IE;
28095894 1754 if (!bfd_link_executable (info))
aa137e4d
NC		 1755 info->flags |= DF_STATIC_TLS;
1756 goto have_got_reference;
1757
1758 case R_TILEGX_IMM16_X0_HW0_GOT:
1759 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 1760 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1761 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1762 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1763 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 1764 tls_type = GOT_NORMAL;
1765 /* Fall Through */
1766
1767 have_got_reference:
1768 /* This symbol requires a global offset table entry. */
1769 {
1770 int old_tls_type;
1771
1772 if (h != NULL)
1773 {
1774 h->got.refcount += 1;
1775 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1776 }
1777 else
1778 {
1779 bfd_signed_vma *local_got_refcounts;
1780
1781 /* This is a global offset table entry for a local symbol. */
1782 local_got_refcounts = elf_local_got_refcounts (abfd);
1783 if (local_got_refcounts == NULL)
1784 {
1785 bfd_size_type size;
1786
1787 size = symtab_hdr->sh_info;
1788 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1789 local_got_refcounts = ((bfd_signed_vma *)
1790 bfd_zalloc (abfd, size));
1791 if (local_got_refcounts == NULL)
1792 return FALSE;
1793 elf_local_got_refcounts (abfd) = local_got_refcounts;
1794 _bfd_tilegx_elf_local_got_tls_type (abfd)
1795 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1796 }
1797 local_got_refcounts[r_symndx] += 1;
1798 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1799 }
1800
1801 /* If a TLS symbol is accessed using IE at least once,
1802 there is no point to use dynamic model for it. */
1803 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1804 && (old_tls_type != GOT_TLS_GD
1805 || tls_type != GOT_TLS_IE))
1806 {
1807 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1808 tls_type = old_tls_type;
1809 else
1810 {
4eca0228 1811 _bfd_error_handler
695344c0 1812 /* xgettext:c-format */
aa137e4d
NC		 1813 (_("%B: `%s' accessed both as normal and thread local symbol"),
1814 abfd, h ? h->root.root.string : "<local>");
1815 return FALSE;
1816 }
1817 }
1818
1819 if (old_tls_type != tls_type)
1820 {
1821 if (h != NULL)
1822 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1823 else
1824 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1825 }
1826 }
1827
1828 if (htab->elf.sgot == NULL)
1829 {
1830 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1831 return FALSE;
1832 }
1833 break;
1834
6f7be959 1835 case R_TILEGX_TLS_GD_CALL:
28095894 1836 if (!bfd_link_executable (info))
6f7be959
WL		 1837 {
1838 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1839 against __tls_get_addr. */
1840 struct bfd_link_hash_entry *bh = NULL;
1841 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1842 "__tls_get_addr", 0,
1843 bfd_und_section_ptr, 0,
1844 NULL, FALSE, FALSE,
1845 &bh))
1846 return FALSE;
1847 h = (struct elf_link_hash_entry *) bh;
1848 }
1849 else
1850 break;
1851 /* Fall through */
1852
aa137e4d 1853 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 1854 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1855 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1856 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1857 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1858 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1859 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1860 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1861 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1862 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1863 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1864 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1865 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1866 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1867 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 1868 /* This symbol requires a procedure linkage table entry. We
1869 actually build the entry in adjust_dynamic_symbol,
1870 because this might be a case of linking PIC code without
1871 linking in any dynamic objects, in which case we don't
1872 need to generate a procedure linkage table after all. */
1873
1874 if (h != NULL)
1875 {
1876 h->needs_plt = 1;
1877 h->plt.refcount += 1;
1878 }
1879 break;
1880
1881 case R_TILEGX_64_PCREL:
1882 case R_TILEGX_32_PCREL:
1883 case R_TILEGX_16_PCREL:
1884 case R_TILEGX_8_PCREL:
1885 case R_TILEGX_IMM16_X0_HW0_PCREL:
1886 case R_TILEGX_IMM16_X1_HW0_PCREL:
1887 case R_TILEGX_IMM16_X0_HW1_PCREL:
1888 case R_TILEGX_IMM16_X1_HW1_PCREL:
1889 case R_TILEGX_IMM16_X0_HW2_PCREL:
1890 case R_TILEGX_IMM16_X1_HW2_PCREL:
1891 case R_TILEGX_IMM16_X0_HW3_PCREL:
1892 case R_TILEGX_IMM16_X1_HW3_PCREL:
1893 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1894 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1895 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1896 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1897 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1898 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1899 if (h != NULL)
1900 h->non_got_ref = 1;
1901
1902 if (h != NULL
1903 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1904 break;
1905 /* Fall through. */
1906
1907 case R_TILEGX_64:
1908 case R_TILEGX_32:
1909 case R_TILEGX_16:
1910 case R_TILEGX_8:
1911 case R_TILEGX_HW0:
1912 case R_TILEGX_HW1:
1913 case R_TILEGX_HW2:
1914 case R_TILEGX_HW3:
1915 case R_TILEGX_HW0_LAST:
1916 case R_TILEGX_HW1_LAST:
1917 case R_TILEGX_HW2_LAST:
1918 case R_TILEGX_COPY:
1919 case R_TILEGX_GLOB_DAT:
1920 case R_TILEGX_JMP_SLOT:
1921 case R_TILEGX_RELATIVE:
1922 case R_TILEGX_BROFF_X1:
1923 case R_TILEGX_JUMPOFF_X1:
1924 case R_TILEGX_IMM8_X0:
1925 case R_TILEGX_IMM8_Y0:
1926 case R_TILEGX_IMM8_X1:
1927 case R_TILEGX_IMM8_Y1:
1928 case R_TILEGX_DEST_IMM8_X1:
1929 case R_TILEGX_MT_IMM14_X1:
1930 case R_TILEGX_MF_IMM14_X1:
1931 case R_TILEGX_MMSTART_X0:
1932 case R_TILEGX_MMEND_X0:
1933 case R_TILEGX_SHAMT_X0:
1934 case R_TILEGX_SHAMT_X1:
1935 case R_TILEGX_SHAMT_Y0:
1936 case R_TILEGX_SHAMT_Y1:
1937 case R_TILEGX_IMM16_X0_HW0:
1938 case R_TILEGX_IMM16_X1_HW0:
1939 case R_TILEGX_IMM16_X0_HW1:
1940 case R_TILEGX_IMM16_X1_HW1:
1941 case R_TILEGX_IMM16_X0_HW2:
1942 case R_TILEGX_IMM16_X1_HW2:
1943 case R_TILEGX_IMM16_X0_HW3:
1944 case R_TILEGX_IMM16_X1_HW3:
1945 case R_TILEGX_IMM16_X0_HW0_LAST:
1946 case R_TILEGX_IMM16_X1_HW0_LAST:
1947 case R_TILEGX_IMM16_X0_HW1_LAST:
1948 case R_TILEGX_IMM16_X1_HW1_LAST:
1949 case R_TILEGX_IMM16_X0_HW2_LAST:
1950 case R_TILEGX_IMM16_X1_HW2_LAST:
1951 if (h != NULL)
6f7be959 1952 h->non_got_ref = 1;
aa137e4d 1953
6f7be959 1954 r_tilegx_plt32:
0e1862bb 1955 if (h != NULL && !bfd_link_pic (info))
6f7be959
WL		 1956 {
1957 /* We may need a .plt entry if the function this reloc
1958 refers to is in a shared lib. */
1959 h->plt.refcount += 1;
1960 }
aa137e4d
NC		 1961
1962 /* If we are creating a shared library, and this is a reloc
1963 against a global symbol, or a non PC relative reloc
1964 against a local symbol, then we need to copy the reloc
1965 into the shared library. However, if we are linking with
1966 -Bsymbolic, we do not need to copy a reloc against a
1967 global symbol which is defined in an object we are
1968 including in the link (i.e., DEF_REGULAR is set). At
1969 this point we have not seen all the input files, so it is
1970 possible that DEF_REGULAR is not set now but will be set
1971 later (it is never cleared). In case of a weak definition,
1972 DEF_REGULAR may be cleared later by a strong definition in
1973 a shared library. We account for that possibility below by
1974 storing information in the relocs_copied field of the hash
1975 table entry. A similar situation occurs when creating
1976 shared libraries and symbol visibility changes render the
1977 symbol local.
1978
1979 If on the other hand, we are creating an executable, we
1980 may need to keep relocations for symbols satisfied by a
1981 dynamic library if we manage to avoid copy relocs for the
1982 symbol. */
0e1862bb 1983 if ((bfd_link_pic (info)
aa137e4d
NC		 1984 && (sec->flags & SEC_ALLOC) != 0
1985 && (! tilegx_elf_howto_table[r_type].pc_relative
1986 || (h != NULL
1987 && (! info->symbolic
1988 || h->root.type == bfd_link_hash_defweak
1989 || !h->def_regular))))
0e1862bb 1990 || (!bfd_link_pic (info)
aa137e4d
NC		 1991 && (sec->flags & SEC_ALLOC) != 0
1992 && h != NULL
1993 && (h->root.type == bfd_link_hash_defweak
1994 || !h->def_regular)))
1995 {
1996 struct tilegx_elf_dyn_relocs *p;
1997 struct tilegx_elf_dyn_relocs **head;
1998
1999 /* When creating a shared object, we must copy these
2000 relocs into the output file. We create a reloc
2001 section in dynobj and make room for the reloc. */
2002 if (sreloc == NULL)
2003 {
2004 sreloc = _bfd_elf_make_dynamic_reloc_section
2005 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2006 /*rela?*/ TRUE);
2007
2008 if (sreloc == NULL)
2009 return FALSE;
2010 }
2011
2012 /* If this is a global symbol, we count the number of
2013 relocations we need for this symbol. */
2014 if (h != NULL)
2015 head =
2016 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2017 else
2018 {
2019 /* Track dynamic relocs needed for local syms too.
2020 We really need local syms available to do this
2021 easily. Oh well. */
2022
2023 asection *s;
2024 void *vpp;
2025 Elf_Internal_Sym *isym;
2026
2027 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2028 abfd, r_symndx);
2029 if (isym == NULL)
2030 return FALSE;
2031
2032 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2033 if (s == NULL)
2034 s = sec;
2035
2036 vpp = &elf_section_data (s)->local_dynrel;
2037 head = (struct tilegx_elf_dyn_relocs **) vpp;
2038 }
2039
2040 p = *head;
2041 if (p == NULL || p->sec != sec)
2042 {
2043 bfd_size_type amt = sizeof *p;
2044 p = ((struct tilegx_elf_dyn_relocs *)
2045 bfd_alloc (htab->elf.dynobj, amt));
2046 if (p == NULL)
2047 return FALSE;
2048 p->next = *head;
2049 *head = p;
2050 p->sec = sec;
2051 p->count = 0;
2052 p->pc_count = 0;
2053 }
2054
2055 p->count += 1;
2056 if (tilegx_elf_howto_table[r_type].pc_relative)
2057 p->pc_count += 1;
2058 }
2059
2060 break;
2061
2062 case R_TILEGX_GNU_VTINHERIT:
2063 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2064 return FALSE;
2065 break;
2066
2067 case R_TILEGX_GNU_VTENTRY:
2068 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2069 return FALSE;
2070 break;
2071
2072 default:
2073 break;
2074 }
2075 }
2076
2077 return TRUE;
2078}
2079
2080\f
2081asection *
2082tilegx_elf_gc_mark_hook (asection *sec,
2083 struct bfd_link_info *info,
2084 Elf_Internal_Rela *rel,
2085 struct elf_link_hash_entry *h,
2086 Elf_Internal_Sym *sym)
2087{
2088 if (h != NULL)
2089 {
2090 switch (TILEGX_ELF_R_TYPE (rel->r_info))
b45b6908
AM		 2091 {
2092 case R_TILEGX_GNU_VTINHERIT:
2093 case R_TILEGX_GNU_VTENTRY:
2094 return NULL;
2095 }
2096 }
2097
2098 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 2099 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2100 if (bfd_link_pic (info))
b45b6908 2101 {
8e354058
L		 2102 struct bfd_link_hash_entry *bh;
2103
b45b6908
AM		 2104 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2105 {
2106 case R_TILEGX_TLS_GD_CALL:
2107 /* This reloc implicitly references __tls_get_addr. We know
2108 another reloc will reference the same symbol as the one
2109 on this reloc, so the real symbol and section will be
2110 gc marked when processing the other reloc. That lets
2111 us handle __tls_get_addr here. */
8e354058
L		 2112 bh = NULL;
2113 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
2114 "__tls_get_addr", 0,
2115 bfd_und_section_ptr,
2116 0, NULL, FALSE,
2117 FALSE, &bh))
2118 return NULL;
2119 h = (struct elf_link_hash_entry *) bh;
b45b6908
AM		 2120 BFD_ASSERT (h != NULL);
2121 h->mark = 1;
60d67dc8
AM		 2122 if (h->is_weakalias)
2123 weakdef (h)->mark = 1;
b45b6908
AM		 2124 sym = NULL;
2125 }
aa137e4d
NC		 2126 }
2127
2128 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2129}
2130
63c1f59d
AM		 2131/* Find dynamic relocs for H that apply to read-only sections. */
2132
2133static asection *
2134readonly_dynrelocs (struct elf_link_hash_entry *h)
2135{
2136 struct tilegx_elf_dyn_relocs *p;
2137
2138 for (p = tilegx_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2139 {
2140 asection *s = p->sec->output_section;
2141
2142 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2143 return p->sec;
2144 }
2145 return NULL;
2146}
2147
aa137e4d
NC		 2148/* Adjust a symbol defined by a dynamic object and referenced by a
2149 regular object. The current definition is in some section of the
2150 dynamic object, but we're not including those sections. We have to
2151 change the definition to something the rest of the link can
2152 understand. */
2153
2154bfd_boolean
2155tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2156 struct elf_link_hash_entry *h)
2157{
2158 struct tilegx_elf_link_hash_table *htab;
2159 struct tilegx_elf_link_hash_entry * eh;
2160 struct tilegx_elf_dyn_relocs *p;
2161 bfd *dynobj;
5474d94f 2162 asection *s, *srel;
aa137e4d
NC		 2163
2164 htab = tilegx_elf_hash_table (info);
2165 BFD_ASSERT (htab != NULL);
2166
2167 dynobj = htab->elf.dynobj;
2168
2169 /* Make sure we know what is going on here. */
2170 BFD_ASSERT (dynobj != NULL
2171 && (h->needs_plt
60d67dc8 2172 || h->is_weakalias
aa137e4d
NC		 2173 || (h->def_dynamic
2174 && h->ref_regular
2175 && !h->def_regular)));
2176
2177 /* If this is a function, put it in the procedure linkage table. We
2178 will fill in the contents of the procedure linkage table later
2179 (although we could actually do it here). */
2180 if (h->type == STT_FUNC || h->needs_plt)
2181 {
2182 if (h->plt.refcount <= 0
2183 || SYMBOL_CALLS_LOCAL (info, h)
2184 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2185 && h->root.type == bfd_link_hash_undefweak))
2186 {
2187 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2188 reloc in an input file, but the symbol was never referred
2189 to by a dynamic object, or if all references were garbage
2190 collected. In such a case, we don't actually need to build
2191 a procedure linkage table, and we can just do a
2192 R_TILEGX_JUMPOFF_X1 relocation instead. */
2193 h->plt.offset = (bfd_vma) -1;
2194 h->needs_plt = 0;
2195 }
2196
2197 return TRUE;
2198 }
2199 else
2200 h->plt.offset = (bfd_vma) -1;
2201
2202 /* If this is a weak symbol, and there is a real definition, the
2203 processor independent code will have arranged for us to see the
2204 real definition first, and we can just use the same value. */
60d67dc8 2205 if (h->is_weakalias)
aa137e4d 2206 {
60d67dc8
AM		 2207 struct elf_link_hash_entry *def = weakdef (h);
2208 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2209 h->root.u.def.section = def->root.u.def.section;
2210 h->root.u.def.value = def->root.u.def.value;
aa137e4d
NC		 2211 return TRUE;
2212 }
2213
2214 /* This is a reference to a symbol defined by a dynamic object which
2215 is not a function. */
2216
2217 /* If we are creating a shared library, we must presume that the
2218 only references to the symbol are via the global offset table.
2219 For such cases we need not do anything here; the relocations will
2220 be handled correctly by relocate_section. */
0e1862bb 2221 if (bfd_link_pic (info))
aa137e4d
NC		 2222 return TRUE;
2223
2224 /* If there are no references to this symbol that do not use the
2225 GOT, we don't need to generate a copy reloc. */
2226 if (!h->non_got_ref)
2227 return TRUE;
2228
2229 /* If -z nocopyreloc was given, we won't generate them either. */
2230 if (info->nocopyreloc)
2231 {
2232 h->non_got_ref = 0;
2233 return TRUE;
2234 }
2235
2236 eh = (struct tilegx_elf_link_hash_entry *) h;
2237 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2238 {
2239 s = p->sec->output_section;
2240 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2241 break;
2242 }
2243
2244 /* If we didn't find any dynamic relocs in read-only sections, then
2245 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2246 if (p == NULL)
2247 {
2248 h->non_got_ref = 0;
2249 return TRUE;
2250 }
2251
aa137e4d
NC		 2252 /* We must allocate the symbol in our .dynbss section, which will
2253 become part of the .bss section of the executable. There will be
2254 an entry for this symbol in the .dynsym section. The dynamic
2255 object will contain position independent code, so all references
2256 from the dynamic object to this symbol will go through the global
2257 offset table. The dynamic linker will use the .dynsym entry to
2258 determine the address it must put in the global offset table, so
2259 both the dynamic object and the regular object will refer to the
2260 same memory location for the variable. */
2261
2262 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2263 to copy the initial value out of the dynamic object and into the
2264 runtime process image. We need to remember the offset into the
2265 .rel.bss section we are going to use. */
5474d94f
AM		 2266 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2267 {
2268 s = htab->elf.sdynrelro;
2269 srel = htab->elf.sreldynrelro;
2270 }
2271 else
2272 {
2273 s = htab->elf.sdynbss;
2274 srel = htab->elf.srelbss;
2275 }
1d7e9d18 2276 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
aa137e4d 2277 {
5474d94f 2278 srel->size += TILEGX_ELF_RELA_BYTES (htab);
aa137e4d
NC		 2279 h->needs_copy = 1;
2280 }
2281
5474d94f 2282 return _bfd_elf_adjust_dynamic_copy (info, h, s);
aa137e4d
NC		 2283}
2284
2285/* Allocate space in .plt, .got and associated reloc sections for
2286 dynamic relocs. */
2287
2288static bfd_boolean
e4d34ace 2289allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2290{
2291 struct bfd_link_info *info;
2292 struct tilegx_elf_link_hash_table *htab;
2293 struct tilegx_elf_link_hash_entry *eh;
2294 struct tilegx_elf_dyn_relocs *p;
2295
2296 if (h->root.type == bfd_link_hash_indirect)
2297 return TRUE;
2298
aa137e4d
NC		 2299 info = (struct bfd_link_info *) inf;
2300 htab = tilegx_elf_hash_table (info);
2301 BFD_ASSERT (htab != NULL);
2302
2303 if (htab->elf.dynamic_sections_created
2304 && h->plt.refcount > 0)
2305 {
2306 /* Make sure this symbol is output as a dynamic symbol.
2307 Undefined weak syms won't yet be marked as dynamic. */
2308 if (h->dynindx == -1
2309 && !h->forced_local)
2310 {
2311 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2312 return FALSE;
2313 }
2314
0e1862bb 2315 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
aa137e4d
NC		 2316 {
2317 asection *s = htab->elf.splt;
2318
2319 /* Allocate room for the header and tail. */
2320 if (s->size == 0)
2321 {
663b5850 2322 s->size = PLT_ENTRY_SIZE;
aa137e4d
NC		 2323 }
2324
663b5850 2325 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
aa137e4d
NC		 2326
2327 /* If this symbol is not defined in a regular file, and we are
2328 not generating a shared library, then set the symbol to this
2329 location in the .plt. This is required to make function
2330 pointers compare as equal between the normal executable and
2331 the shared library. */
0e1862bb 2332 if (! bfd_link_pic (info)
aa137e4d
NC		 2333 && !h->def_regular)
2334 {
2335 h->root.u.def.section = s;
2336 h->root.u.def.value = h->plt.offset;
2337 }
2338
2339 /* Make room for this entry. */
2340 s->size += PLT_ENTRY_SIZE;
2341
2342 /* We also need to make an entry in the .got.plt section. */
2343 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2344
2345 /* We also need to make an entry in the .rela.plt section. */
2346 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2347 }
2348 else
2349 {
2350 h->plt.offset = (bfd_vma) -1;
2351 h->needs_plt = 0;
2352 }
2353 }
2354 else
2355 {
2356 h->plt.offset = (bfd_vma) -1;
2357 h->needs_plt = 0;
2358 }
2359
6f7be959
WL		 2360 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2361 requiring no TLS entry. */
2362 if (h->got.refcount > 0
2363 && !htab->disable_le_transition
28095894 2364 && bfd_link_executable (info)
6f7be959
WL		 2365 && h->dynindx == -1
2366 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2367 h->got.offset = (bfd_vma) -1;
2368 else if (h->got.refcount > 0)
aa137e4d
NC		 2369 {
2370 asection *s;
2371 bfd_boolean dyn;
2372 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2373
2374 /* Make sure this symbol is output as a dynamic symbol.
2375 Undefined weak syms won't yet be marked as dynamic. */
2376 if (h->dynindx == -1
2377 && !h->forced_local)
2378 {
2379 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2380 return FALSE;
2381 }
2382
2383 s = htab->elf.sgot;
2384 h->got.offset = s->size;
2385 s->size += TILEGX_ELF_WORD_BYTES (htab);
2386 /* TLS_GD entries need 2 consecutive GOT slots. */
2387 if (tls_type == GOT_TLS_GD)
2388 s->size += TILEGX_ELF_WORD_BYTES (htab);
2389 dyn = htab->elf.dynamic_sections_created;
2390 /* TLS_IE needs one dynamic relocation,
2391 TLS_GD needs two if local symbol and two if global. */
2392 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2393 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
0e1862bb
L		 2394 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2395 bfd_link_pic (info),
2396 h))
aa137e4d
NC		 2397 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2398 }
2399 else
2400 h->got.offset = (bfd_vma) -1;
2401
2402 eh = (struct tilegx_elf_link_hash_entry *) h;
2403 if (eh->dyn_relocs == NULL)
2404 return TRUE;
2405
2406 /* In the shared -Bsymbolic case, discard space allocated for
2407 dynamic pc-relative relocs against symbols which turn out to be
2408 defined in regular objects. For the normal shared case, discard
2409 space for pc-relative relocs that have become local due to symbol
2410 visibility changes. */
2411
0e1862bb 2412 if (bfd_link_pic (info))
aa137e4d
NC		 2413 {
2414 if (SYMBOL_CALLS_LOCAL (info, h))
2415 {
2416 struct tilegx_elf_dyn_relocs **pp;
2417
2418 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2419 {
2420 p->count -= p->pc_count;
2421 p->pc_count = 0;
2422 if (p->count == 0)
2423 *pp = p->next;
2424 else
2425 pp = &p->next;
2426 }
2427 }
2428
2429 /* Also discard relocs on undefined weak syms with non-default
2430 visibility. */
2431 if (eh->dyn_relocs != NULL
2432 && h->root.type == bfd_link_hash_undefweak)
2433 {
a3cd202a
L		 2434 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2435 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
aa137e4d
NC		 2436 eh->dyn_relocs = NULL;
2437
2438 /* Make sure undefined weak symbols are output as a dynamic
2439 symbol in PIEs. */
2440 else if (h->dynindx == -1
2441 && !h->forced_local)
2442 {
2443 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2444 return FALSE;
2445 }
2446 }
2447 }
2448 else
2449 {
2450 /* For the non-shared case, discard space for relocs against
2451 symbols which turn out to need copy relocs or are not
2452 dynamic. */
2453
2454 if (!h->non_got_ref
2455 && ((h->def_dynamic
2456 && !h->def_regular)
2457 || (htab->elf.dynamic_sections_created
2458 && (h->root.type == bfd_link_hash_undefweak
2459 || h->root.type == bfd_link_hash_undefined))))
2460 {
2461 /* Make sure this symbol is output as a dynamic symbol.
2462 Undefined weak syms won't yet be marked as dynamic. */
2463 if (h->dynindx == -1
2464 && !h->forced_local)
2465 {
2466 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2467 return FALSE;
2468 }
2469
2470 /* If that succeeded, we know we'll be keeping all the
2471 relocs. */
2472 if (h->dynindx != -1)
2473 goto keep;
2474 }
2475
2476 eh->dyn_relocs = NULL;
2477
2478 keep: ;
2479 }
2480
2481 /* Finally, allocate space. */
2482 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2483 {
2484 asection *sreloc = elf_section_data (p->sec)->sreloc;
2485 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2486 }
2487
2488 return TRUE;
2489}
2490
63c1f59d
AM		 2491/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2492 read-only sections. */
aa137e4d
NC		 2493
2494static bfd_boolean
63c1f59d 2495maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
aa137e4d 2496{
63c1f59d 2497 asection *sec;
aa137e4d 2498
63c1f59d
AM		 2499 if (h->root.type == bfd_link_hash_indirect)
2500 return TRUE;
aa137e4d 2501
63c1f59d
AM		 2502 sec = readonly_dynrelocs (h);
2503 if (sec != NULL)
2504 {
2505 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
aa137e4d 2506
63c1f59d
AM		 2507 info->flags |= DF_TEXTREL;
2508 info->callbacks->minfo
2509 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2510 sec->owner, h->root.root.string, sec);
007873f5 2511
63c1f59d
AM		 2512 /* Not an error, just cut short the traversal. */
2513 return FALSE;
aa137e4d
NC		 2514 }
2515 return TRUE;
2516}
2517
2518/* Return true if the dynamic symbol for a given section should be
2519 omitted when creating a shared library. */
2520
2521bfd_boolean
2522tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2523 struct bfd_link_info *info,
2524 asection *p)
2525{
2526 /* We keep the .got section symbol so that explicit relocations
2527 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2528 can be turned into relocations against the .got symbol. */
2529 if (strcmp (p->name, ".got") == 0)
2530 return FALSE;
2531
2532 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2533}
2534
2535bfd_boolean
2536tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2537 struct bfd_link_info *info)
2538{
2539 struct tilegx_elf_link_hash_table *htab;
2540 bfd *dynobj;
2541 asection *s;
2542 bfd *ibfd;
2543
2544 htab = tilegx_elf_hash_table (info);
2545 BFD_ASSERT (htab != NULL);
2546 dynobj = htab->elf.dynobj;
2547 BFD_ASSERT (dynobj != NULL);
2548
2549 if (elf_hash_table (info)->dynamic_sections_created)
2550 {
2551 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2552 if (bfd_link_executable (info) && !info->nointerp)
aa137e4d 2553 {
3d4d4302 2554 s = bfd_get_linker_section (dynobj, ".interp");
aa137e4d
NC		 2555 BFD_ASSERT (s != NULL);
2556 s->size = strlen (htab->dynamic_interpreter) + 1;
2557 s->contents = (unsigned char *) htab->dynamic_interpreter;
2558 }
2559 }
2560
2561 /* Set up .got offsets for local syms, and space for local dynamic
2562 relocs. */
c72f2fb2 2563 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
aa137e4d
NC		 2564 {
2565 bfd_signed_vma *local_got;
2566 bfd_signed_vma *end_local_got;
2567 char *local_tls_type;
2568 bfd_size_type locsymcount;
2569 Elf_Internal_Shdr *symtab_hdr;
2570 asection *srel;
2571
2572 if (! is_tilegx_elf (ibfd))
2573 continue;
2574
2575 for (s = ibfd->sections; s != NULL; s = s->next)
2576 {
2577 struct tilegx_elf_dyn_relocs *p;
2578
2579 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2580 {
2581 if (!bfd_is_abs_section (p->sec)
2582 && bfd_is_abs_section (p->sec->output_section))
2583 {
2584 /* Input section has been discarded, either because
2585 it is a copy of a linkonce section or due to
2586 linker script /DISCARD/, so we'll be discarding
2587 the relocs too. */
2588 }
2589 else if (p->count != 0)
2590 {
2591 srel = elf_section_data (p->sec)->sreloc;
2592 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2593 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
007873f5
L		 2594 {
2595 info->flags |= DF_TEXTREL;
2596
2597 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2598 p->sec->owner, p->sec);
2599 }
aa137e4d
NC		 2600 }
2601 }
2602 }
2603
2604 local_got = elf_local_got_refcounts (ibfd);
2605 if (!local_got)
2606 continue;
2607
2608 symtab_hdr = &elf_symtab_hdr (ibfd);
2609 locsymcount = symtab_hdr->sh_info;
2610 end_local_got = local_got + locsymcount;
2611 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2612 s = htab->elf.sgot;
2613 srel = htab->elf.srelgot;
2614 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2615 {
2616 if (*local_got > 0)
2617 {
2618 *local_got = s->size;
2619 s->size += TILEGX_ELF_WORD_BYTES (htab);
2620 if (*local_tls_type == GOT_TLS_GD)
2621 s->size += TILEGX_ELF_WORD_BYTES (htab);
0e1862bb 2622 if (bfd_link_pic (info)
aa137e4d
NC		 2623 || *local_tls_type == GOT_TLS_GD
2624 || *local_tls_type == GOT_TLS_IE)
2625 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2626 }
2627 else
2628 *local_got = (bfd_vma) -1;
2629 }
2630 }
2631
2632 /* Allocate global sym .plt and .got entries, and space for global
2633 sym dynamic relocs. */
e4d34ace 2634 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
aa137e4d
NC		 2635
2636 if (elf_hash_table (info)->dynamic_sections_created)
2637 {
2638 /* If the .got section is more than 0x8000 bytes, we add
2639 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2640 bit relocations have a greater chance of working. */
2641 if (htab->elf.sgot->size >= 0x8000
2642 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2643 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2644 }
2645
2646 if (htab->elf.sgotplt)
2647 {
2648 struct elf_link_hash_entry *got;
2649 got = elf_link_hash_lookup (elf_hash_table (info),
2650 "_GLOBAL_OFFSET_TABLE_",
2651 FALSE, FALSE, FALSE);
2652
2653 /* Don't allocate .got.plt section if there are no GOT nor PLT
2654 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2655 if ((got == NULL
2656 || !got->ref_regular_nonweak)
2657 && (htab->elf.sgotplt->size
2658 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2659 && (htab->elf.splt == NULL
2660 || htab->elf.splt->size == 0)
2661 && (htab->elf.sgot == NULL
2662 || (htab->elf.sgot->size
2663 == get_elf_backend_data (output_bfd)->got_header_size)))
2664 htab->elf.sgotplt->size = 0;
2665 }
2666
2667 /* The check_relocs and adjust_dynamic_symbol entry points have
2668 determined the sizes of the various dynamic sections. Allocate
2669 memory for them. */
2670 for (s = dynobj->sections; s != NULL; s = s->next)
2671 {
2672 if ((s->flags & SEC_LINKER_CREATED) == 0)
2673 continue;
2674
2675 if (s == htab->elf.splt
2676 || s == htab->elf.sgot
2677 || s == htab->elf.sgotplt
5474d94f
AM		 2678 || s == htab->elf.sdynbss
2679 || s == htab->elf.sdynrelro)
aa137e4d
NC		 2680 {
2681 /* Strip this section if we don't need it; see the
2682 comment below. */
2683 }
2684 else if (strncmp (s->name, ".rela", 5) == 0)
2685 {
2686 if (s->size != 0)
2687 {
2688 /* We use the reloc_count field as a counter if we need
2689 to copy relocs into the output file. */
2690 s->reloc_count = 0;
2691 }
2692 }
2693 else
2694 {
2695 /* It's not one of our sections. */
2696 continue;
2697 }
2698
2699 if (s->size == 0)
2700 {
2701 /* If we don't need this section, strip it from the
2702 output file. This is mostly to handle .rela.bss and
2703 .rela.plt. We must create both sections in
2704 create_dynamic_sections, because they must be created
2705 before the linker maps input sections to output
2706 sections. The linker does that before
2707 adjust_dynamic_symbol is called, and it is that
2708 function which decides whether anything needs to go
2709 into these sections. */
2710 s->flags |= SEC_EXCLUDE;
2711 continue;
2712 }
2713
2714 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2715 continue;
2716
2717 /* Allocate memory for the section contents. Zero the memory
2718 for the benefit of .rela.plt, which has 4 unused entries
2719 at the beginning, and we don't want garbage. */
2720 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2721 if (s->contents == NULL)
2722 return FALSE;
2723 }
2724
2725 if (elf_hash_table (info)->dynamic_sections_created)
2726 {
2727 /* Add some entries to the .dynamic section. We fill in the
2728 values later, in tilegx_elf_finish_dynamic_sections, but we
2729 must add the entries now so that we get the correct size for
2730 the .dynamic section. The DT_DEBUG entry is filled in by the
2731 dynamic linker and used by the debugger. */
2732#define add_dynamic_entry(TAG, VAL) \
2733 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2734
0e1862bb 2735 if (bfd_link_executable (info))
aa137e4d
NC		 2736 {
2737 if (!add_dynamic_entry (DT_DEBUG, 0))
2738 return FALSE;
2739 }
2740
2741 if (htab->elf.srelplt->size != 0)
2742 {
2743 if (!add_dynamic_entry (DT_PLTGOT, 0)
2744 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2745 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2746 || !add_dynamic_entry (DT_JMPREL, 0))
2747 return FALSE;
2748 }
2749
2750 if (!add_dynamic_entry (DT_RELA, 0)
2751 || !add_dynamic_entry (DT_RELASZ, 0)
2752 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2753 return FALSE;
2754
2755 /* If any dynamic relocs apply to a read-only section,
2756 then we need a DT_TEXTREL entry. */
2757 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2758 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
aa137e4d
NC		 2759
2760 if (info->flags & DF_TEXTREL)
2761 {
2762 if (!add_dynamic_entry (DT_TEXTREL, 0))
2763 return FALSE;
2764 }
2765 }
2766#undef add_dynamic_entry
2767
2768 return TRUE;
2769}
2770\f
2771/* Return the base VMA address which should be subtracted from real addresses
2772 when resolving @dtpoff relocation.
2773 This is PT_TLS segment p_vaddr. */
2774
2775static bfd_vma
2776dtpoff_base (struct bfd_link_info *info)
2777{
2778 /* If tls_sec is NULL, we should have signalled an error already. */
2779 if (elf_hash_table (info)->tls_sec == NULL)
2780 return 0;
2781 return elf_hash_table (info)->tls_sec->vma;
2782}
2783
2784/* Return the relocation value for @tpoff relocation. */
2785
2786static bfd_vma
2787tpoff (struct bfd_link_info *info, bfd_vma address)
2788{
2789 struct elf_link_hash_table *htab = elf_hash_table (info);
2790
2791 /* If tls_sec is NULL, we should have signalled an error already. */
2792 if (htab->tls_sec == NULL)
2793 return 0;
2794
2795 return (address - htab->tls_sec->vma);
2796}
2797
6f7be959
WL		 2798/* Copy SIZE bits from FROM to TO at address ADDR. */
2799
2800static void
2801tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2802{
2803 int i;
2804 for (i = 0; i < size; i++)
2805 {
2806 int from_byte = (from + i) / 8;
2807 int from_bit = (from + i) % 8;
2808 int to_byte = (to + i) / 8;
2809 int to_bit = (to + i) % 8;
2810 bfd_byte to_mask = 1 << to_bit;
2811 addr[to_byte] = (addr[to_byte] & ~to_mask)
2812 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2813 }
2814}
2815
2816/* Replace the MASK bits in ADDR with those in INSN, for the next
2817 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2818
2819static void
2820tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2821 const bfd_byte *insn)
2822{
2823 int i;
2824 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2825 {
2826 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2827 }
2828}
2829
2830/* Mask to extract the bits corresponding to an instruction in a
2831 specific pipe of a bundle. */
2832static const bfd_byte insn_mask_X1[] = {
2833 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2834};
2835
2836/* Mask to extract the bits corresponding to an instruction in a
2837 specific pipe of a bundle, minus the destination operand and the
2838 first source operand. */
68ffbac6 2839static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
6f7be959
WL		 2840 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2841};
2842
2843static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2844 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2845};
2846
2847static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2848 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2849};
2850static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2851 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2852};
2853
2854/* Mask to extract the bits corresponding to an instruction in a
2855 specific pipe of a bundle, minus the register operands. */
2856static const bfd_byte insn_mask_X0_no_operand[] = {
2857 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2858};
2859
2860static const bfd_byte insn_mask_X1_no_operand[] = {
2861 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2862};
2863
2864static const bfd_byte insn_mask_Y0_no_operand[] = {
2865 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2866};
2867
2868static const bfd_byte insn_mask_Y1_no_operand[] = {
2869 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2870};
2871
2872/* Various instructions synthesized to support tls references. */
2873
2874/* ld r0, r0 in the X1 pipe, used for tls ie. */
2875static const bfd_byte insn_tls_ie_ld_X1[] = {
2876 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2877};
2878
2879/* ld4s r0, r0 in the X1 pipe, used for tls ie. */
2880static const bfd_byte insn_tls_ie_ld4s_X1[] = {
2881 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
2882};
2883
2884/* add r0, r0, tp in various pipes, used for tls ie. */
2885static const bfd_byte insn_tls_ie_add_X0X1[] = {
2886 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
2887};
2888static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2889 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
2890};
2891
2892/* addx r0, r0, tp in various pipes, used for tls ie. */
2893static const bfd_byte insn_tls_ie_addx_X0X1[] = {
2894 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
2895};
2896static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
2897 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
2898};
2899
2900/* move r0, r0 in various pipes, used for tls gd. */
2901static const bfd_byte insn_tls_gd_add_X0X1[] = {
2902 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
2903};
2904static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2905 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
2906};
2907
2908static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
2909static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
2910
2911static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
2912static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
2913
2914static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
2915static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
2916
aa137e4d
NC		 2917/* Relocate an TILEGX ELF section.
2918
2919 The RELOCATE_SECTION function is called by the new ELF backend linker
2920 to handle the relocations for a section.
2921
2922 The relocs are always passed as Rela structures.
2923
2924 This function is responsible for adjusting the section contents as
2925 necessary, and (if generating a relocatable output file) adjusting
2926 the reloc addend as necessary.
2927
2928 This function does not have to worry about setting the reloc
2929 address or the reloc symbol index.
2930
2931 LOCAL_SYMS is a pointer to the swapped in local symbols.
2932
2933 LOCAL_SECTIONS is an array giving the section in the input file
2934 corresponding to the st_shndx field of each local symbol.
2935
2936 The global hash table entry for the global symbols can be found
2937 via elf_sym_hashes (input_bfd).
2938
2939 When generating relocatable output, this function must handle
2940 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2941 going to be the section symbol corresponding to the output
2942 section, which means that the addend must be adjusted
2943 accordingly. */
2944
2945bfd_boolean
2946tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2947 bfd *input_bfd, asection *input_section,
2948 bfd_byte *contents, Elf_Internal_Rela *relocs,
2949 Elf_Internal_Sym *local_syms,
2950 asection **local_sections)
2951{
2952 struct tilegx_elf_link_hash_table *htab;
2953 Elf_Internal_Shdr *symtab_hdr;
2954 struct elf_link_hash_entry **sym_hashes;
2955 bfd_vma *local_got_offsets;
535127d2 2956 bfd_vma got_base;
aa137e4d
NC		 2957 asection *sreloc;
2958 Elf_Internal_Rela *rel;
2959 Elf_Internal_Rela *relend;
2960 int num_relocs;
2961
2962 htab = tilegx_elf_hash_table (info);
2963 BFD_ASSERT (htab != NULL);
2964 symtab_hdr = &elf_symtab_hdr (input_bfd);
2965 sym_hashes = elf_sym_hashes (input_bfd);
2966 local_got_offsets = elf_local_got_offsets (input_bfd);
2967
535127d2
WL		 2968 if (elf_hash_table (info)->hgot == NULL)
2969 got_base = 0;
2970 else
2971 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2972
aa137e4d
NC		 2973 sreloc = elf_section_data (input_section)->sreloc;
2974
2975 rel = relocs;
2976 num_relocs = input_section->reloc_count;
2977 relend = relocs + num_relocs;
2978 for (; rel < relend; rel++)
2979 {
2980 int r_type, tls_type;
6f7be959 2981 bfd_boolean is_tls_iele, is_tls_le;
aa137e4d
NC		 2982 reloc_howto_type *howto;
2983 unsigned long r_symndx;
2984 struct elf_link_hash_entry *h;
2985 Elf_Internal_Sym *sym;
2986 tilegx_create_func create_func;
2987 asection *sec;
2988 bfd_vma relocation;
2989 bfd_reloc_status_type r;
2990 const char *name;
2991 bfd_vma off;
2992 bfd_boolean is_plt = FALSE;
a3cd202a 2993 bfd_boolean resolved_to_zero;
aa137e4d
NC		 2994 bfd_boolean unresolved_reloc;
2995
2996 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2997 if (r_type == R_TILEGX_GNU_VTINHERIT
2998 || r_type == R_TILEGX_GNU_VTENTRY)
2999 continue;
3000
3001 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
47aeb64c 3002 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
aa137e4d
NC		 3003
3004 howto = tilegx_elf_howto_table + r_type;
3005
3006 /* This is a final link. */
3007 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3008 h = NULL;
3009 sym = NULL;
3010 sec = NULL;
3011 unresolved_reloc = FALSE;
3012 if (r_symndx < symtab_hdr->sh_info)
3013 {
3014 sym = local_syms + r_symndx;
3015 sec = local_sections[r_symndx];
3016 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3017 }
3018 else
3019 {
62d887d4
L		 3020 bfd_boolean warned ATTRIBUTE_UNUSED;
3021 bfd_boolean ignored ATTRIBUTE_UNUSED;
aa137e4d
NC		 3022
3023 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3024 r_symndx, symtab_hdr, sym_hashes,
3025 h, sec, relocation,
62d887d4 3026 unresolved_reloc, warned, ignored);
aa137e4d
NC		 3027 if (warned)
3028 {
3029 /* To avoid generating warning messages about truncated
3030 relocations, set the relocation's address to be the same as
3031 the start of this section. */
3032 if (input_section->output_section != NULL)
3033 relocation = input_section->output_section->vma;
3034 else
3035 relocation = 0;
3036 }
3037 }
3038
dbaa2011 3039 if (sec != NULL && discarded_section (sec))
aa137e4d 3040 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3041 rel, 1, relend, howto, 0, contents);
aa137e4d 3042
0e1862bb 3043 if (bfd_link_relocatable (info))
aa137e4d
NC		 3044 continue;
3045
3046 if (h != NULL)
3047 name = h->root.root.string;
3048 else
3049 {
3050 name = (bfd_elf_string_from_elf_section
3051 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3052 if (name == NULL || *name == '\0')
3053 name = bfd_section_name (input_bfd, sec);
3054 }
3055
6f7be959
WL		 3056 switch (r_type)
3057 {
3058 case R_TILEGX_TLS_GD_CALL:
3059 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3060 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3061 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3062 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3063 case R_TILEGX_IMM8_X0_TLS_ADD:
3064 case R_TILEGX_IMM8_Y0_TLS_ADD:
3065 case R_TILEGX_IMM8_X1_TLS_ADD:
3066 case R_TILEGX_IMM8_Y1_TLS_ADD:
3067 tls_type = GOT_UNKNOWN;
3068 if (h == NULL && local_got_offsets)
3069 tls_type =
3070 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3071 else if (h != NULL)
3072 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3073
28095894 3074 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
6f7be959 3075 is_tls_le = is_tls_iele && (!input_section->sec_flg0
28095894 3076 && bfd_link_executable (info)
6f7be959
WL		 3077 && (h == NULL || h->dynindx == -1));
3078
3079 if (r_type == R_TILEGX_TLS_GD_CALL)
3080 {
3081 if (is_tls_le)
3082 {
3083 /* GD -> LE */
3084 tilegx_replace_insn (contents + rel->r_offset,
3085 insn_mask_X1, insn_move_X0X1);
3086 continue;
3087 }
3088 else if (is_tls_iele)
3089 {
3090 /* GD -> IE */
3091 if (ABI_64_P (output_bfd))
3092 tilegx_replace_insn (contents + rel->r_offset,
3093 insn_mask_X1, insn_tls_ie_ld_X1);
3094 else
3095 tilegx_replace_insn (contents + rel->r_offset,
3096 insn_mask_X1, insn_tls_ie_ld4s_X1);
3097 continue;
3098 }
3099
3100 /* GD -> GD */
3101 h = (struct elf_link_hash_entry *)
3102 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3103 FALSE, TRUE);
3104 BFD_ASSERT (h != NULL);
3105 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3106 howto = tilegx_elf_howto_table + r_type;
3107 }
3108 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3109 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3110 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3111 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3112 {
3113 bfd_boolean is_pipe0 =
3114 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3115 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3116 bfd_boolean is_X0X1 =
3117 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3118 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3119 int dest_begin = is_pipe0 ? 0 : 31;
3120 int src_begin;
3121 const bfd_byte *insn;
84abc003 3122 const bfd_byte *mask = NULL;
6f7be959
WL		 3123
3124 if (is_tls_le)
3125 {
3126 /* 1. copy dest operand into the first source operand.
3127 2. change the opcode to "move". */
3128 src_begin = is_pipe0 ? 6 : 37;
3129 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3130
3131 switch (r_type)
3132 {
3133 case R_TILEGX_IMM8_X0_TLS_ADD:
3134 mask = insn_mask_X0_no_dest_no_srca;
3135 break;
3136 case R_TILEGX_IMM8_X1_TLS_ADD:
3137 mask = insn_mask_X1_no_dest_no_srca;
3138 break;
3139 case R_TILEGX_IMM8_Y0_TLS_ADD:
3140 mask = insn_mask_Y0_no_dest_no_srca;
3141 break;
3142 case R_TILEGX_IMM8_Y1_TLS_ADD:
3143 mask = insn_mask_Y1_no_dest_no_srca;
3144 break;
3145 }
3146 }
3147 else
3148 {
3149 /* 1. copy dest operand into the second source operand.
3150 2. change the opcode to "add". */
3151 src_begin = is_pipe0 ? 12 : 43;
3152 if (ABI_64_P (output_bfd))
3153 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3154 else
3155 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3156
3157 switch (r_type)
3158 {
3159 case R_TILEGX_IMM8_X0_TLS_ADD:
3160 mask = insn_mask_X0_no_operand;
3161 break;
3162 case R_TILEGX_IMM8_X1_TLS_ADD:
3163 mask = insn_mask_X1_no_operand;
3164 break;
3165 case R_TILEGX_IMM8_Y0_TLS_ADD:
3166 mask = insn_mask_Y0_no_operand;
3167 break;
3168 case R_TILEGX_IMM8_Y1_TLS_ADD:
3169 mask = insn_mask_Y1_no_operand;
3170 break;
3171 }
3172 }
3173
3174 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3175 src_begin, 6);
3176 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3177
3178 continue;
3179 }
3180 else
3181 {
3182 const bfd_byte *mask = NULL;
3183 const bfd_byte *add_insn = NULL;
3184 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3185
3186 switch (r_type)
3187 {
3188 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3189 add_insn = is_tls_iele
3190 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3191 : insn_tls_gd_add_X0X1;
3192 mask = insn_mask_X0_no_dest_no_srca;
3193 break;
3194 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3195 add_insn = is_tls_iele
3196 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3197 : insn_tls_gd_add_X0X1;
3198 mask = insn_mask_X1_no_dest_no_srca;
3199 break;
3200 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3201 add_insn = is_tls_iele
3202 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3203 : insn_tls_gd_add_Y0Y1;
3204 mask = insn_mask_Y0_no_dest_no_srca;
3205 break;
3206 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3207 add_insn = is_tls_iele
3208 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3209 : insn_tls_gd_add_Y0Y1;
3210 mask = insn_mask_Y1_no_dest_no_srca;
3211 break;
3212 }
3213
3214 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3215
3216 continue;
3217 }
3218 break;
3219 case R_TILEGX_TLS_IE_LOAD:
3220 if (!input_section->sec_flg0
28095894 3221 && bfd_link_executable (info)
6f7be959
WL		 3222 && (h == NULL || h->dynindx == -1))
3223 {
3224 /* IE -> LE */
3225 tilegx_replace_insn (contents + rel->r_offset,
3226 insn_mask_X1_no_dest_no_srca,
3227 insn_move_X0X1);
3228 }
3229 else
3230 {
3231 /* IE -> IE */
3232 if (ABI_64_P (output_bfd))
3233 tilegx_replace_insn (contents + rel->r_offset,
3234 insn_mask_X1_no_dest_no_srca,
3235 insn_tls_ie_ld_X1);
3236 else
3237 tilegx_replace_insn (contents + rel->r_offset,
3238 insn_mask_X1_no_dest_no_srca,
3239 insn_tls_ie_ld4s_X1);
3240 }
3241 continue;
3242 break;
3243 default:
3244 break;
3245 }
3246
a3cd202a
L		 3247 resolved_to_zero = (h != NULL
3248 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
3249
aa137e4d
NC		 3250 switch (r_type)
3251 {
3252 case R_TILEGX_IMM16_X0_HW0_GOT:
3253 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 3254 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3255 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3256 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3257 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 3258 /* Relocation is to the entry for this symbol in the global
3259 offset table. */
3260 if (htab->elf.sgot == NULL)
3261 abort ();
3262
3263 if (h != NULL)
3264 {
3265 bfd_boolean dyn;
3266
3267 off = h->got.offset;
3268 BFD_ASSERT (off != (bfd_vma) -1);
3269 dyn = elf_hash_table (info)->dynamic_sections_created;
3270
0e1862bb
L		 3271 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3272 bfd_link_pic (info),
3273 h)
3274 || (bfd_link_pic (info)
aa137e4d
NC		 3275 && SYMBOL_REFERENCES_LOCAL (info, h)))
3276 {
3277 /* This is actually a static link, or it is a
3278 -Bsymbolic link and the symbol is defined
3279 locally, or the symbol was forced to be local
3280 because of a version file. We must initialize
3281 this entry in the global offset table. Since the
3282 offset must always be a multiple
3283 of 8 for 64-bit, we use the least significant bit
3284 to record whether we have initialized it already.
3285
3286 When doing a dynamic link, we create a .rela.got
3287 relocation entry to initialize the value. This
3288 is done in the finish_dynamic_symbol routine. */
3289 if ((off & 1) != 0)
3290 off &= ~1;
3291 else
3292 {
3293 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3294 htab->elf.sgot->contents + off);
3295 h->got.offset |= 1;
3296 }
3297 }
3298 else
3299 unresolved_reloc = FALSE;
3300 }
3301 else
3302 {
3303 BFD_ASSERT (local_got_offsets != NULL
3304 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3305
3306 off = local_got_offsets[r_symndx];
3307
3308 /* The offset must always be a multiple of 8 on 64-bit.
3309 We use the least significant bit to record
3310 whether we have already processed this entry. */
3311 if ((off & 1) != 0)
3312 off &= ~1;
3313 else
3314 {
0e1862bb 3315 if (bfd_link_pic (info))
aa137e4d
NC		 3316 {
3317 asection *s;
3318 Elf_Internal_Rela outrel;
3319
3320 /* We need to generate a R_TILEGX_RELATIVE reloc
3321 for the dynamic linker. */
3322 s = htab->elf.srelgot;
3323 BFD_ASSERT (s != NULL);
3324
3325 outrel.r_offset = (htab->elf.sgot->output_section->vma
3326 + htab->elf.sgot->output_offset
3327 + off);
3328 outrel.r_info =
3329 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3330 outrel.r_addend = relocation;
3331 relocation = 0;
3332 tilegx_elf_append_rela (output_bfd, s, &outrel);
3333 }
3334
3335 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3336 htab->elf.sgot->contents + off);
3337 local_got_offsets[r_symndx] |= 1;
3338 }
3339 }
535127d2 3340 relocation = off - got_base;
aa137e4d
NC		 3341 break;
3342
3343 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 3344 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3345 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3346 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3347 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3348 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3349 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3350 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3351 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3352 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3353 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3354 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3355 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3356 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3357 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 3358 /* Relocation is to the entry for this symbol in the
3359 procedure linkage table. */
3360 BFD_ASSERT (h != NULL);
3361
3362 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3363 {
3364 /* We didn't make a PLT entry for this symbol. This
3365 happens when statically linking PIC code, or when
3366 using -Bsymbolic. */
3367 break;
3368 }
3369
3370 relocation = (htab->elf.splt->output_section->vma
3371 + htab->elf.splt->output_offset
3372 + h->plt.offset);
3373 unresolved_reloc = FALSE;
3374 break;
3375
3376 case R_TILEGX_64_PCREL:
3377 case R_TILEGX_32_PCREL:
3378 case R_TILEGX_16_PCREL:
3379 case R_TILEGX_8_PCREL:
3380 case R_TILEGX_IMM16_X0_HW0_PCREL:
3381 case R_TILEGX_IMM16_X1_HW0_PCREL:
3382 case R_TILEGX_IMM16_X0_HW1_PCREL:
3383 case R_TILEGX_IMM16_X1_HW1_PCREL:
3384 case R_TILEGX_IMM16_X0_HW2_PCREL:
3385 case R_TILEGX_IMM16_X1_HW2_PCREL:
3386 case R_TILEGX_IMM16_X0_HW3_PCREL:
3387 case R_TILEGX_IMM16_X1_HW3_PCREL:
3388 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3389 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3390 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3391 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3392 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3393 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3394 if (h != NULL
3395 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3396 break;
3397 /* Fall through. */
3398 case R_TILEGX_64:
3399 case R_TILEGX_32:
3400 case R_TILEGX_16:
3401 case R_TILEGX_8:
3402 case R_TILEGX_HW0:
3403 case R_TILEGX_HW1:
3404 case R_TILEGX_HW2:
3405 case R_TILEGX_HW3:
3406 case R_TILEGX_HW0_LAST:
3407 case R_TILEGX_HW1_LAST:
3408 case R_TILEGX_HW2_LAST:
3409 case R_TILEGX_COPY:
3410 case R_TILEGX_GLOB_DAT:
3411 case R_TILEGX_JMP_SLOT:
3412 case R_TILEGX_RELATIVE:
3413 case R_TILEGX_BROFF_X1:
3414 case R_TILEGX_JUMPOFF_X1:
3415 case R_TILEGX_IMM8_X0:
3416 case R_TILEGX_IMM8_Y0:
3417 case R_TILEGX_IMM8_X1:
3418 case R_TILEGX_IMM8_Y1:
3419 case R_TILEGX_DEST_IMM8_X1:
3420 case R_TILEGX_MT_IMM14_X1:
3421 case R_TILEGX_MF_IMM14_X1:
3422 case R_TILEGX_MMSTART_X0:
3423 case R_TILEGX_MMEND_X0:
3424 case R_TILEGX_SHAMT_X0:
3425 case R_TILEGX_SHAMT_X1:
3426 case R_TILEGX_SHAMT_Y0:
3427 case R_TILEGX_SHAMT_Y1:
3428 case R_TILEGX_IMM16_X0_HW0:
3429 case R_TILEGX_IMM16_X1_HW0:
3430 case R_TILEGX_IMM16_X0_HW1:
3431 case R_TILEGX_IMM16_X1_HW1:
3432 case R_TILEGX_IMM16_X0_HW2:
3433 case R_TILEGX_IMM16_X1_HW2:
3434 case R_TILEGX_IMM16_X0_HW3:
3435 case R_TILEGX_IMM16_X1_HW3:
3436 case R_TILEGX_IMM16_X0_HW0_LAST:
3437 case R_TILEGX_IMM16_X1_HW0_LAST:
3438 case R_TILEGX_IMM16_X0_HW1_LAST:
3439 case R_TILEGX_IMM16_X1_HW1_LAST:
3440 case R_TILEGX_IMM16_X0_HW2_LAST:
3441 case R_TILEGX_IMM16_X1_HW2_LAST:
3442 if ((input_section->flags & SEC_ALLOC) == 0)
3443 break;
3444
0e1862bb 3445 if ((bfd_link_pic (info)
aa137e4d 3446 && (h == NULL
a3cd202a
L		 3447 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3448 && !resolved_to_zero)
aa137e4d
NC		 3449 || h->root.type != bfd_link_hash_undefweak)
3450 && (! howto->pc_relative
3451 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3452 || (!bfd_link_pic (info)
aa137e4d
NC		 3453 && h != NULL
3454 && h->dynindx != -1
3455 && !h->non_got_ref
3456 && ((h->def_dynamic
3457 && !h->def_regular)
3458 || h->root.type == bfd_link_hash_undefweak
3459 || h->root.type == bfd_link_hash_undefined)))
3460 {
3461 Elf_Internal_Rela outrel;
3462 bfd_boolean skip, relocate = FALSE;
3463
3464 /* When generating a shared object, these relocations
3465 are copied into the output file to be resolved at run
3466 time. */
3467
3468 BFD_ASSERT (sreloc != NULL);
3469
3470 skip = FALSE;
3471
3472 outrel.r_offset =
3473 _bfd_elf_section_offset (output_bfd, info, input_section,
3474 rel->r_offset);
3475 if (outrel.r_offset == (bfd_vma) -1)
3476 skip = TRUE;
3477 else if (outrel.r_offset == (bfd_vma) -2)
3478 skip = TRUE, relocate = TRUE;
3479 outrel.r_offset += (input_section->output_section->vma
3480 + input_section->output_offset);
3481
3482 switch (r_type)
3483 {
3484 case R_TILEGX_64_PCREL:
3485 case R_TILEGX_32_PCREL:
3486 case R_TILEGX_16_PCREL:
3487 case R_TILEGX_8_PCREL:
3488 /* If the symbol is not dynamic, we should not keep
3489 a dynamic relocation. But an .rela.* slot has been
3490 allocated for it, output R_TILEGX_NONE.
3491 FIXME: Add code tracking needed dynamic relocs as
3492 e.g. i386 has. */
3493 if (h->dynindx == -1)
3494 skip = TRUE, relocate = TRUE;
3495 break;
3496 }
3497
3498 if (skip)
3499 memset (&outrel, 0, sizeof outrel);
3500 /* h->dynindx may be -1 if the symbol was marked to
3501 become local. */
3502 else if (h != NULL &&
3503 h->dynindx != -1
3504 && (! is_plt
0e1862bb 3505 || !bfd_link_pic (info)
aa137e4d
NC		 3506 || !SYMBOLIC_BIND (info, h)
3507 || !h->def_regular))
3508 {
3509 BFD_ASSERT (h->dynindx != -1);
3510 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3511 outrel.r_addend = rel->r_addend;
3512 }
3513 else
3514 {
3515 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3516 {
3517 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3518 R_TILEGX_RELATIVE);
3519 outrel.r_addend = relocation + rel->r_addend;
3520 }
3521 else
3522 {
3523 long indx;
3524
3525 outrel.r_addend = relocation + rel->r_addend;
3526
3527 if (is_plt)
3528 sec = htab->elf.splt;
3529
3530 if (bfd_is_abs_section (sec))
3531 indx = 0;
3532 else if (sec == NULL || sec->owner == NULL)
3533 {
3534 bfd_set_error (bfd_error_bad_value);
3535 return FALSE;
3536 }
3537 else
3538 {
3539 asection *osec;
3540
3541 /* We are turning this relocation into one
3542 against a section symbol. It would be
3543 proper to subtract the symbol's value,
3544 osec->vma, from the emitted reloc addend,
3545 but ld.so expects buggy relocs. */
3546 osec = sec->output_section;
3547 indx = elf_section_data (osec)->dynindx;
3548
3549 if (indx == 0)
3550 {
3551 osec = htab->elf.text_index_section;
3552 indx = elf_section_data (osec)->dynindx;
3553 }
3554
3555 /* FIXME: we really should be able to link non-pic
3556 shared libraries. */
3557 if (indx == 0)
3558 {
3559 BFD_FAIL ();
4eca0228 3560 _bfd_error_handler
aa137e4d
NC		 3561 (_("%B: probably compiled without -fPIC?"),
3562 input_bfd);
3563 bfd_set_error (bfd_error_bad_value);
3564 return FALSE;
3565 }
3566 }
3567
3568 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3569 r_type);
3570 }
3571 }
3572
3573 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3574
3575 /* This reloc will be computed at runtime, so there's no
3576 need to do anything now. */
3577 if (! relocate)
3578 continue;
3579 }
3580 break;
3581
6f7be959
WL		 3582 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3583 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3584 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3585 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3586 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3587 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
28095894 3588 if (!bfd_link_executable (info))
6f7be959
WL		 3589 {
3590 Elf_Internal_Rela outrel;
3591 bfd_boolean skip;
3592
3593 BFD_ASSERT (sreloc != NULL);
3594 skip = FALSE;
3595 outrel.r_offset =
3596 _bfd_elf_section_offset (output_bfd, info, input_section,
3597 rel->r_offset);
3598 if (outrel.r_offset == (bfd_vma) -1)
3599 skip = TRUE;
3600 else if (outrel.r_offset == (bfd_vma) -2)
3601 skip = TRUE;
3602 outrel.r_offset += (input_section->output_section->vma
3603 + input_section->output_offset);
3604 if (skip)
3605 memset (&outrel, 0, sizeof outrel);
3606 else
3607 {
3608 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3609 outrel.r_addend = relocation - dtpoff_base (info)
3610 + rel->r_addend;
3611 }
3612
3613 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3614 continue;
3615 }
3616 relocation = tpoff (info, relocation);
3617 break;
3618
aa137e4d
NC		 3619 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3620 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3621 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3622 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3623 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3624 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3625 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3626 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3627 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3628 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3629 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3630 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
6f7be959
WL		 3631 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3632 input_section->sec_flg0);
3633 tls_type = GOT_UNKNOWN;
aa137e4d 3634 if (h == NULL && local_got_offsets)
6f7be959
WL		 3635 tls_type =
3636 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
aa137e4d 3637 else if (h != NULL)
6f7be959
WL		 3638 {
3639 tls_type = tilegx_elf_hash_entry(h)->tls_type;
28095894 3640 if (bfd_link_executable (info)
0e1862bb
L		 3641 && h->dynindx == -1
3642 && tls_type == GOT_TLS_IE)
6f7be959
WL		 3643 r_type = (!input_section->sec_flg0
3644 ? tilegx_tls_translate_to_le (r_type)
3645 : tilegx_tls_translate_to_ie (r_type));
3646 }
aa137e4d
NC		 3647
3648 if (tls_type == GOT_TLS_IE)
6f7be959
WL		 3649 r_type = tilegx_tls_translate_to_ie (r_type);
3650
3651 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3652 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3653 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3654 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3655 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3656 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3657 {
3658 relocation = tpoff (info, relocation);
3659 break;
3660 }
aa137e4d
NC		 3661
3662 if (h != NULL)
3663 {
3664 off = h->got.offset;
3665 h->got.offset |= 1;
3666 }
3667 else
3668 {
3669 BFD_ASSERT (local_got_offsets != NULL);
3670 off = local_got_offsets[r_symndx];
3671 local_got_offsets[r_symndx] |= 1;
3672 }
3673
3674 if (htab->elf.sgot == NULL)
3675 abort ();
3676
3677 if ((off & 1) != 0)
3678 off &= ~1;
3679 else
3680 {
3681 Elf_Internal_Rela outrel;
3682 int indx = 0;
3683 bfd_boolean need_relocs = FALSE;
3684
3685 if (htab->elf.srelgot == NULL)
3686 abort ();
3687
3688 if (h != NULL)
3689 {
3690 bfd_boolean dyn;
3691 dyn = htab->elf.dynamic_sections_created;
3692
0e1862bb
L		 3693 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3694 bfd_link_pic (info),
3695 h)
3696 && (!bfd_link_pic (info)
aa137e4d
NC		 3697 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3698 {
3699 indx = h->dynindx;
3700 }
3701 }
3702
3703 /* The GOT entries have not been initialized yet. Do it
3704 now, and emit any relocations. */
0e1862bb 3705 if ((bfd_link_pic (info) || indx != 0)
aa137e4d
NC		 3706 && (h == NULL
3707 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3708 || h->root.type != bfd_link_hash_undefweak))
3709 need_relocs = TRUE;
3710
3711 switch (r_type)
3712 {
3713 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3714 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3715 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3716 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3717 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3718 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 3719 if (need_relocs) {
3720 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3721 htab->elf.sgot->contents + off);
3722 outrel.r_offset = (htab->elf.sgot->output_section->vma
3723 + htab->elf.sgot->output_offset + off);
3724 outrel.r_addend = 0;
3725 if (indx == 0)
3726 outrel.r_addend = relocation - dtpoff_base (info);
3727 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3728 TILEGX_ELF_TPOFF_RELOC (htab));
3729 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3730 } else {
3731 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3732 tpoff (info, relocation),
3733 htab->elf.sgot->contents + off);
3734 }
3735 break;
3736
3737 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3738 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3739 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3740 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3741 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3742 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3743 if (need_relocs) {
3744 outrel.r_offset = (htab->elf.sgot->output_section->vma
3745 + htab->elf.sgot->output_offset + off);
3746 outrel.r_addend = 0;
3747 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3748 TILEGX_ELF_DTPMOD_RELOC (htab));
3749 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3750 htab->elf.sgot->contents + off);
3751 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3752 if (indx == 0)
3753 {
3754 BFD_ASSERT (! unresolved_reloc);
3755 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3756 relocation - dtpoff_base (info),
3757 (htab->elf.sgot->contents + off +
3758 TILEGX_ELF_WORD_BYTES (htab)));
3759 }
3760 else
3761 {
3762 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3763 (htab->elf.sgot->contents + off +
3764 TILEGX_ELF_WORD_BYTES (htab)));
3765 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3766 TILEGX_ELF_DTPOFF_RELOC (htab));
3767 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3768 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3769 }
3770 }
3771
3772 else {
3773 /* If we are not emitting relocations for a
3774 general dynamic reference, then we must be in a
3775 static link or an executable link with the
3776 symbol binding locally. Mark it as belonging
3777 to module 1, the executable. */
3778 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3779 htab->elf.sgot->contents + off );
3780 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3781 relocation - dtpoff_base (info),
3782 htab->elf.sgot->contents + off +
3783 TILEGX_ELF_WORD_BYTES (htab));
3784 }
3785 break;
3786 }
3787 }
3788
3789 if (off >= (bfd_vma) -2)
3790 abort ();
3791
535127d2 3792 relocation = off - got_base;
aa137e4d
NC		 3793 unresolved_reloc = FALSE;
3794 howto = tilegx_elf_howto_table + r_type;
3795 break;
3796
3797 default:
3798 break;
3799 }
3800
3801 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3802 because such sections are not SEC_ALLOC and thus ld.so will
3803 not process them. */
3804 if (unresolved_reloc
3805 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3806 && h->def_dynamic)
3807 && _bfd_elf_section_offset (output_bfd, info, input_section,
3808 rel->r_offset) != (bfd_vma) -1)
4eca0228 3809 _bfd_error_handler
695344c0 3810 /* xgettext:c-format */
d42c267e 3811 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
aa137e4d
NC		 3812 input_bfd,
3813 input_section,
d42c267e 3814 rel->r_offset,
aa137e4d
NC		 3815 howto->name,
3816 h->root.root.string);
3817
3818 r = bfd_reloc_continue;
3819
3820 /* Get the operand creation function, if any. */
3821 create_func = reloc_to_create_func[r_type];
3822 if (create_func == NULL)
3823 {
3824 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3825 contents, rel->r_offset,
3826 relocation, rel->r_addend);
3827 }
3828 else
3829 {
3830 if (howto->pc_relative)
3831 {
3832 relocation -=
3833 input_section->output_section->vma + input_section->output_offset;
3834 if (howto->pcrel_offset)
3835 relocation -= rel->r_offset;
3836 }
3837
3838 bfd_byte *data;
3839
3840 /* Add the relocation addend if any to the final target value */
3841 relocation += rel->r_addend;
3842
3843 /* Do basic range checking */
3844 r = bfd_check_overflow (howto->complain_on_overflow,
3845 howto->bitsize,
3846 howto->rightshift,
3847 TILEGX_ELF_WORD_BYTES (htab) * 8,
3848 relocation);
3849
3850 /*
3851 * Write the relocated value out into the raw section data.
3852 * Don't put a relocation out in the .rela section.
3853 */
3854 tilegx_bundle_bits mask = create_func(-1);
3855 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3856
3857 /* Only touch bytes while the mask is not 0, so we
3858 don't write to out of bounds memory if this is actually
3859 a 16-bit switch instruction. */
3860 for (data = contents + rel->r_offset; mask != 0; data++)
3861 {
3862 bfd_byte byte_mask = (bfd_byte)mask;
3863 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3864 mask >>= 8;
3865 value >>= 8;
3866 }
3867 }
3868
3869 if (r != bfd_reloc_ok)
3870 {
3871 const char *msg = NULL;
3872
3873 switch (r)
3874 {
3875 case bfd_reloc_overflow:
1a72702b 3876 (*info->callbacks->reloc_overflow)
aa137e4d
NC		 3877 (info, (h ? &h->root : NULL), name, howto->name,
3878 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3879 break;
3880
3881 case bfd_reloc_undefined:
1a72702b
AM		 3882 (*info->callbacks->undefined_symbol)
3883 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
aa137e4d
NC		 3884 break;
3885
3886 case bfd_reloc_outofrange:
3887 msg = _("internal error: out of range error");
3888 break;
3889
3890 case bfd_reloc_notsupported:
3891 msg = _("internal error: unsupported relocation error");
3892 break;
3893
3894 case bfd_reloc_dangerous:
3895 msg = _("internal error: dangerous relocation");
3896 break;
3897
3898 default:
3899 msg = _("internal error: unknown error");
3900 break;
3901 }
3902
3903 if (msg)
1a72702b
AM		 3904 (*info->callbacks->warning) (info, msg, name, input_bfd,
3905 input_section, rel->r_offset);
aa137e4d
NC		 3906 }
3907 }
3908
3909 return TRUE;
3910}
3911
3912/* Finish up dynamic symbol handling. We set the contents of various
3913 dynamic sections here. */
3914
3915bfd_boolean
3916tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
3917 struct bfd_link_info *info,
3918 struct elf_link_hash_entry *h,
3919 Elf_Internal_Sym *sym)
3920{
3921 struct tilegx_elf_link_hash_table *htab;
3922
3923 htab = tilegx_elf_hash_table (info);
3924 BFD_ASSERT (htab != NULL);
3925
3926 if (h->plt.offset != (bfd_vma) -1)
3927 {
3928 asection *splt;
3929 asection *srela;
3930 asection *sgotplt;
3931 Elf_Internal_Rela rela;
3932 bfd_byte *loc;
3933 bfd_vma r_offset;
3934 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
3935
3936
3937 int rela_index;
3938
3939 /* This symbol has an entry in the PLT. Set it up. */
3940
3941 BFD_ASSERT (h->dynindx != -1);
3942
3943 splt = htab->elf.splt;
3944 srela = htab->elf.srelplt;
3945 sgotplt = htab->elf.sgotplt;
3946
3947 if (splt == NULL || srela == NULL)
3948 abort ();
3949
3950 /* Fill in the entry in the procedure linkage table. */
3951 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
3952 h->plt.offset, &r_offset);
3953
3954 /* Fill in the entry in the global offset table, which initially points
3955 to the beginning of the plt. */
3956 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3957 splt->output_section->vma + splt->output_offset,
3958 sgotplt->contents + r_offset);
3959
3960 /* Fill in the entry in the .rela.plt section. */
3961 rela.r_offset = (sgotplt->output_section->vma
3962 + sgotplt->output_offset
3963 + r_offset);
3964 rela.r_addend = 0;
3965 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
3966
3967 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
3968 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3969
3970 if (!h->def_regular)
3971 {
3972 /* Mark the symbol as undefined, rather than as defined in
3973 the .plt section. Leave the value alone. */
3974 sym->st_shndx = SHN_UNDEF;
3975 /* If the symbol is weak, we do need to clear the value.
3976 Otherwise, the PLT entry would provide a definition for
3977 the symbol even if the symbol wasn't defined anywhere,
3978 and so the symbol would never be NULL. */
3979 if (!h->ref_regular_nonweak)
3980 sym->st_value = 0;
3981 }
3982 }
3983
3984 if (h->got.offset != (bfd_vma) -1
3985 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3986 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3987 {
3988 asection *sgot;
3989 asection *srela;
3990 Elf_Internal_Rela rela;
3991
3992 /* This symbol has an entry in the GOT. Set it up. */
3993
3994 sgot = htab->elf.sgot;
3995 srela = htab->elf.srelgot;
3996 BFD_ASSERT (sgot != NULL && srela != NULL);
3997
3998 rela.r_offset = (sgot->output_section->vma
3999 + sgot->output_offset
4000 + (h->got.offset &~ (bfd_vma) 1));
4001
4002 /* If this is a -Bsymbolic link, and the symbol is defined
4003 locally, we just want to emit a RELATIVE reloc. Likewise if
4004 the symbol was forced to be local because of a version file.
4005 The entry in the global offset table will already have been
4006 initialized in the relocate_section function. */
0e1862bb 4007 if (bfd_link_pic (info)
aa137e4d
NC		 4008 && (info->symbolic || h->dynindx == -1)
4009 && h->def_regular)
4010 {
4011 asection *sec = h->root.u.def.section;
4012 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4013 rela.r_addend = (h->root.u.def.value
4014 + sec->output_section->vma
4015 + sec->output_offset);
4016 }
4017 else
4018 {
4019 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4020 rela.r_addend = 0;
4021 }
4022
4023 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4024 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4025 tilegx_elf_append_rela (output_bfd, srela, &rela);
4026 }
4027
4028 if (h->needs_copy)
4029 {
4030 asection *s;
4031 Elf_Internal_Rela rela;
4032
4033 /* This symbols needs a copy reloc. Set it up. */
4034 BFD_ASSERT (h->dynindx != -1);
4035
afbf7e8e 4036 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4037 s = htab->elf.sreldynrelro;
4038 else
4039 s = htab->elf.srelbss;
aa137e4d
NC		 4040 BFD_ASSERT (s != NULL);
4041
4042 rela.r_offset = (h->root.u.def.value
4043 + h->root.u.def.section->output_section->vma
4044 + h->root.u.def.section->output_offset);
4045 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4046 rela.r_addend = 0;
4047 tilegx_elf_append_rela (output_bfd, s, &rela);
4048 }
4049
4050 /* Mark some specially defined symbols as absolute. */
9637f6ef 4051 if (h == htab->elf.hdynamic
aa137e4d
NC		 4052 || (h == htab->elf.hgot || h == htab->elf.hplt))
4053 sym->st_shndx = SHN_ABS;
4054
4055 return TRUE;
4056}
4057
4058/* Finish up the dynamic sections. */
4059
4060static bfd_boolean
4061tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4062 bfd *dynobj, asection *sdyn,
4063 asection *splt ATTRIBUTE_UNUSED)
4064{
4065 struct tilegx_elf_link_hash_table *htab;
4066 const struct elf_backend_data *bed;
4067 bfd_byte *dyncon, *dynconend;
4068 size_t dynsize;
aa137e4d
NC		 4069
4070 htab = tilegx_elf_hash_table (info);
4071 BFD_ASSERT (htab != NULL);
4072 bed = get_elf_backend_data (output_bfd);
4073 dynsize = bed->s->sizeof_dyn;
4074 dynconend = sdyn->contents + sdyn->size;
aa137e4d
NC		 4075
4076 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4077 {
4078 Elf_Internal_Dyn dyn;
4079 asection *s;
4080
4081 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4082
4083 switch (dyn.d_tag)
4084 {
4085 case DT_PLTGOT:
4086 s = htab->elf.sgotplt;
4087 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4088 break;
4089 case DT_JMPREL:
4090 s = htab->elf.srelplt;
4091 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4092 break;
4093 case DT_PLTRELSZ:
4094 s = htab->elf.srelplt;
4095 dyn.d_un.d_val = s->size;
4096 break;
4097 default:
4098 continue;
4099 }
4100
4101 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4102 }
4103 return TRUE;
4104}
4105
4106bfd_boolean
4107tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4108 struct bfd_link_info *info)
4109{
4110 bfd *dynobj;
4111 asection *sdyn;
4112 struct tilegx_elf_link_hash_table *htab;
663b5850 4113 size_t pad_size;
aa137e4d
NC		 4114
4115 htab = tilegx_elf_hash_table (info);
4116 BFD_ASSERT (htab != NULL);
4117 dynobj = htab->elf.dynobj;
4118
3d4d4302 4119 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
aa137e4d
NC		 4120
4121 if (elf_hash_table (info)->dynamic_sections_created)
4122 {
4123 asection *splt;
4124 bfd_boolean ret;
4125
3d4d4302 4126 splt = htab->elf.splt;
aa137e4d
NC		 4127 BFD_ASSERT (splt != NULL && sdyn != NULL);
4128
4129 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4130
535b785f 4131 if (!ret)
aa137e4d
NC		 4132 return ret;
4133
4134 /* Fill in the head and tail entries in the procedure linkage table. */
4135 if (splt->size > 0)
4136 {
4137 memcpy (splt->contents,
4138 ABI_64_P (output_bfd) ?
4139 tilegx64_plt0_entry : tilegx32_plt0_entry,
4140 PLT_HEADER_SIZE);
4141
663b5850
WL		 4142 memcpy (splt->contents + splt->size
4143 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
aa137e4d
NC		 4144 ABI_64_P (output_bfd) ?
4145 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4146 PLT_TAIL_SIZE);
663b5850
WL		 4147 /* Add padding so that the plt section is a multiple of its
4148 entry size. */
4149 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4150 memset (splt->contents + splt->size - pad_size, 0, pad_size);
aa137e4d 4151
4c7236d3
L		 4152 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4153 = PLT_ENTRY_SIZE;
4154 }
aa137e4d
NC		 4155 }
4156
4157 if (htab->elf.sgotplt)
4158 {
4159 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4160 {
4eca0228 4161 _bfd_error_handler
aa137e4d
NC		 4162 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4163 return FALSE;
4164 }
4165
4166 if (htab->elf.sgotplt->size > 0)
4167 {
4168 /* Write the first two entries in .got.plt, needed for the dynamic
4169 linker. */
4170 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4171 htab->elf.sgotplt->contents);
4172 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4173 htab->elf.sgotplt->contents
4174 + GOT_ENTRY_SIZE (htab));
aa137e4d 4175
4c7236d3
L		 4176 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4177 GOT_ENTRY_SIZE (htab);
4178 }
aa137e4d
NC		 4179 }
4180
4181 if (htab->elf.sgot)
4182 {
4183 if (htab->elf.sgot->size > 0)
4184 {
4185 /* Set the first entry in the global offset table to the address of
4186 the dynamic section. */
4187 bfd_vma val = (sdyn ?
4188 sdyn->output_section->vma + sdyn->output_offset :
4189 0);
4190 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4191 htab->elf.sgot->contents);
aa137e4d 4192
4c7236d3
L		 4193 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4194 GOT_ENTRY_SIZE (htab);
4195 }
aa137e4d
NC		 4196 }
4197
4198 return TRUE;
4199}
4200
4201\f
4202
4203/* Return address for Ith PLT stub in section PLT, for relocation REL
4204 or (bfd_vma) -1 if it should not be included. */
4205
4206bfd_vma
4207tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4208 const arelent *rel ATTRIBUTE_UNUSED)
4209{
4210 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4211}
4212
4213enum elf_reloc_type_class
7e612e98
AM		 4214tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4215 const asection *rel_sec ATTRIBUTE_UNUSED,
4216 const Elf_Internal_Rela *rela)
aa137e4d
NC		 4217{
4218 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4219 {
4220 case R_TILEGX_RELATIVE:
4221 return reloc_class_relative;
4222 case R_TILEGX_JMP_SLOT:
4223 return reloc_class_plt;
4224 case R_TILEGX_COPY:
4225 return reloc_class_copy;
4226 default:
4227 return reloc_class_normal;
4228 }
4229}
4230
4231int
4232tilegx_additional_program_headers (bfd *abfd,
4233 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4234{
4235 /* Each .intrpt section specified by the user adds another PT_LOAD
4236 header since the sections are discontiguous. */
4237 static const char intrpt_sections[4][9] =
4238 {
4239 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4240 };
4241 int count = 0;
4242 int i;
4243
4244 for (i = 0; i < 4; i++)
4245 {
4246 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4247 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4248 ++count;
4249 }
4250
4251 /* Add four "padding" headers in to leave room in case a custom linker
4252 script does something fancy. Otherwise ld complains that it ran
4253 out of program headers and refuses to link. */
4254 count += 4;
4255
4256 return count;
4257}
4258
4259
4260bfd_boolean
50e03d47 4261_bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
aa137e4d 4262{
50e03d47 4263 bfd *obfd = info->output_bfd;
aa137e4d
NC		 4264 const char *targ1 = bfd_get_target (ibfd);
4265 const char *targ2 = bfd_get_target (obfd);
4266
4267 if (strcmp (targ1, targ2) != 0)
4268 {
4eca0228 4269 _bfd_error_handler
695344c0 4270 /* xgettext:c-format */
aa137e4d
NC		 4271 (_("%B: Cannot link together %s and %s objects."),
4272 ibfd, targ1, targ2);
4273 bfd_set_error (bfd_error_bad_value);
4274 return FALSE;
4275 }
4276
4277 return TRUE;
4278}
GDB Binutils - Deliverables
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