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* elf32-ppc.c (ppc_elf_check_relocs): Set PLT_IFUNC in local got
[deliverable/binutils-gdb.git] / bfd / elfxx-tilegx.c
CommitLineData
aa137e4d 1/* TILE-Gx-specific support for ELF.
1d7e9d18 2 Copyright 2011, 2012 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 */
75 2, /* size (0 = byte, 1 = short, 2 = long) */
76 32, /* bitsize */
77 FALSE, /* pc_relative */
78 0, /* bitpos */
79 complain_overflow_bitfield, /* complain_on_overflow */
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
858 /* Short-cuts to get to dynamic linker sections. */
859 asection *sdynbss;
860 asection *srelbss;
861
6f7be959
WL		 862 /* Whether LE transition has been disabled for some of the
863 sections. */
864 bfd_boolean disable_le_transition;
865
aa137e4d
NC		 866 /* Small local sym to section mapping cache. */
867 struct sym_cache sym_cache;
868};
869
870
871/* Get the Tile ELF linker hash table from a link_info structure. */
872#define tilegx_elf_hash_table(p) \
873 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
874 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
875
876#ifdef BFD64
877static bfd_vma
878tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
879 bfd_vma rel_index,
880 bfd_vma type)
881{
882 return ELF64_R_INFO (rel_index, type);
883}
884
885static bfd_vma
886tilegx_elf_r_symndx_64 (bfd_vma r_info)
887{
888 return ELF64_R_SYM (r_info);
889}
890
891static void
892tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
893{
894 bfd_put_64 (abfd, val, ptr);
895}
896#endif /* BFD64 */
897
898static bfd_vma
899tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
900 bfd_vma rel_index,
901 bfd_vma type)
902{
903 return ELF32_R_INFO (rel_index, type);
904}
905
906static bfd_vma
907tilegx_elf_r_symndx_32 (bfd_vma r_info)
908{
909 return ELF32_R_SYM (r_info);
910}
911
912static void
913tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
914{
915 bfd_put_32 (abfd, val, ptr);
916}
917
918reloc_howto_type *
919tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
920 bfd_reloc_code_real_type code)
921{
922 unsigned int i;
923
924 for (i = ARRAY_SIZE (tilegx_reloc_map); --i;)
925 {
926 const reloc_map * entry;
927
928 entry = tilegx_reloc_map + i;
929
930 if (entry->bfd_reloc_val == code)
931 return entry->table + (entry->tilegx_reloc_val
932 - entry->table[0].type);
933 }
934
935 return NULL;
936}
937
938reloc_howto_type *
939tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
940 const char *r_name)
941{
942 unsigned int i;
943
944 for (i = 0;
945 i < (sizeof (tilegx_elf_howto_table)
946 / sizeof (tilegx_elf_howto_table[0]));
947 i++)
948 if (tilegx_elf_howto_table[i].name != NULL
949 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
950 return &tilegx_elf_howto_table[i];
951
952 return NULL;
953}
954
955void
956tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
957 arelent *cache_ptr,
958 Elf_Internal_Rela *dst)
959{
960 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
961
6f7be959 962 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
aa137e4d
NC		 963 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
964 else if (r_type - R_TILEGX_GNU_VTINHERIT
965 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
966 cache_ptr->howto
967 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
968 else
969 abort ();
970}
971
972typedef tilegx_bundle_bits (*tilegx_create_func)(int);
973
974static const tilegx_create_func reloc_to_create_func[] =
975{
976 /* The first twenty relocation types don't correspond to operands */
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 NULL,
994 NULL,
995 NULL,
996 NULL,
997
998 /* The remaining relocations are used for immediate operands */
999 create_BrOff_X1,
1000 create_JumpOff_X1,
1001 create_JumpOff_X1,
1002 create_Imm8_X0,
1003 create_Imm8_Y0,
1004 create_Imm8_X1,
1005 create_Imm8_Y1,
1006 create_Dest_Imm8_X1,
1007 create_MT_Imm14_X1,
1008 create_MF_Imm14_X1,
1009 create_BFStart_X0,
1010 create_BFEnd_X0,
1011 create_ShAmt_X0,
1012 create_ShAmt_X1,
1013 create_ShAmt_Y0,
1014 create_ShAmt_Y1,
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,
1057 create_Imm16_X0,
1058 create_Imm16_X1,
1059 create_Imm16_X0,
1060 create_Imm16_X1,
e5b95258
WL		 1061 create_Imm16_X0,
1062 create_Imm16_X1,
1063 create_Imm16_X0,
1064 create_Imm16_X1,
1065 create_Imm16_X0,
1066 create_Imm16_X1,
aa137e4d
NC		 1067 create_Imm16_X0,
1068 create_Imm16_X1,
6f7be959
WL		 1069 NULL,
1070 NULL,
e5b95258
WL		 1071 create_Imm16_X0,
1072 create_Imm16_X1,
1073 create_Imm16_X0,
1074 create_Imm16_X1,
1075 create_Imm16_X0,
1076 create_Imm16_X1,
1077 create_Imm16_X0,
1078 create_Imm16_X1,
aa137e4d
NC		 1079 create_Imm16_X0,
1080 create_Imm16_X1,
1081 create_Imm16_X0,
1082 create_Imm16_X1,
aa137e4d
NC		 1083};
1084
1085static void
1086tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1087{
1088 const struct elf_backend_data *bed;
1089 bfd_byte *loc;
1090
1091 bed = get_elf_backend_data (abfd);
1092 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1093 bed->s->swap_reloca_out (abfd, rel, loc);
1094}
1095
1096/* PLT/GOT stuff */
1097
1098/* The procedure linkage table starts with the following header:
1099
1100 ld_add r28, r27, 8
1101 ld r27, r27
1102 {
1103 jr r27
1104 info 10 ## SP not offset, return PC in LR
1105 }
1106
1107 Subsequent entries are the following, jumping to the header at the end:
1108
1109 {
1110 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1111 lnk r26
1112 }
11131:
1114 {
1115 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1116 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1117 }
1118 {
1119 add r28, r26, r28
1120 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1121 }
1122 {
1123 add r27, r26, r27
1124 ld r28, r28
1125 info 10 ## SP not offset, return PC in LR
1126 }
1127 {
1128 shl16insli r29, zero, MY_PLT_INDEX
1129 jr r28
1130 }
1131
1132 This code sequence lets the code at at the start of the PLT determine
1133 which PLT entry was executed by examining 'r29'.
1134
1135 Note that MY_PLT_INDEX skips over the header entries, so the first
1136 actual jump table entry has index zero.
1137
1138 If the offset fits in 16 bits,
1139
1140 lnk r26
11411:
1142 {
1143 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1144 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1145 }
1146 {
1147 shl16insli r29, zero, MY_PLT_INDEX
1148 ld r28, r28
1149 }
1150 {
1151 add r27, r26, r27
1152 jr r28
1153 }
1154 info 10 ## SP not offset, return PC in LR
1155
1156 For the purpose of backtracing, the procedure linkage table ends with the
1157 following tail entry:
1158
1159 info 10 ## SP not offset, return PC in LR
1160
1161 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1162 the GOT being multiples of 4 instead of 8.
1163
1164*/
1165
1166#define PLT_HEADER_SIZE_IN_BUNDLES 3
1167#define PLT_ENTRY_SIZE_IN_BUNDLES 5
1168#define PLT_TAIL_SIZE_IN_BUNDLES 1
1169
1170#define PLT_HEADER_SIZE \
1171 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1172#define PLT_ENTRY_SIZE \
1173 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1174#define PLT_TAIL_SIZE \
1175 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1176
1177#define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1178
1179#define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1180
1181static const bfd_byte
1182tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1183{
1184 0x00, 0x30, 0x48, 0x51,
1185 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1186 0x00, 0x30, 0xbc, 0x35,
1187 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1188 0xff, 0xaf, 0x30, 0x40,
1189 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1190};
1191
1192static const bfd_byte
1193tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1194{
1195 0xdc, 0x0f, 0x00, 0x10,
1196 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1197 0xdb, 0x0f, 0x00, 0x10,
1198 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1199 0x9c, 0xc6, 0x0d, 0xd0,
1200 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1201 0x9b, 0xb6, 0xc5, 0xad,
1202 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1203 0xdd, 0x0f, 0x00, 0x70,
1204 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1205};
1206
1207static const bfd_byte
1208tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1209{
1210 0x00, 0x30, 0x48, 0x51,
1211 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1212 0x9c, 0x06, 0x00, 0x90,
1213 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1214 0xdd, 0x0f, 0x00, 0x70,
1215 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1216 0x9b, 0xb6, 0x0d, 0x50,
1217 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1218 0x00, 0x30, 0x48, 0xd1,
1219 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1220};
1221
1222/* Reuse an existing info 10 bundle. */
1223static const bfd_byte const *tilegx64_plt_tail_entry =
1224 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1225
1226static const bfd_byte
1227tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1228{
1229 0x00, 0x30, 0x48, 0x51,
1230 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1231 0x00, 0x30, 0xbc, 0x35,
1232 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1233 0xff, 0xaf, 0x30, 0x40,
1234 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1235};
1236
1237static const bfd_byte
1238tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1239{
1240 0xdc, 0x0f, 0x00, 0x10,
1241 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1242 0xdb, 0x0f, 0x00, 0x10,
1243 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1244 0x9c, 0xc6, 0x0d, 0xd0,
1245 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1246 0x9b, 0xb6, 0xc5, 0xad,
1247 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1248 0xdd, 0x0f, 0x00, 0x70,
1249 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1250};
1251
1252static const bfd_byte
1253tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1254{
1255 0x00, 0x30, 0x48, 0x51,
1256 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1257 0x9c, 0x06, 0x00, 0x90,
1258 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1259 0xdd, 0x0f, 0x00, 0x70,
1260 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1261 0x9b, 0xb6, 0x0d, 0x50,
1262 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1263 0x00, 0x30, 0x48, 0xd1,
1264 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1265};
1266
1267/* Reuse an existing info 10 bundle. */
1268static const bfd_byte const *tilegx32_plt_tail_entry =
1269 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1270
1271static int
1272tilegx_plt_entry_build (bfd *output_bfd,
1273 struct tilegx_elf_link_hash_table *htab,
1274 asection *splt, asection *sgotplt,
1275 bfd_vma offset, bfd_vma *r_offset)
1276{
1277 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1278 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1279 + GOTPLT_HEADER_SIZE (htab));
1280 tilegx_bundle_bits *pc;
1281
1282 /* Compute the distance from the got entry to the lnk. */
1283 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1284 + sgotplt->output_offset
1285 + got_offset
1286 - splt->output_section->vma
1287 - splt->output_offset
1288 - offset
1289 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1290
1291 /* Compute the distance to GOTPLT[0]. */
1292 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1293
1294 /* Check whether we can use the short plt entry with 16-bit offset. */
1295 bfd_boolean short_plt_entry =
1296 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1297
1298 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1299 (ABI_64_P (output_bfd) ?
1300 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1301 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1302
1303 /* Copy the plt entry template. */
1304 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1305
1306 /* Write the immediate offsets. */
1307 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1308
1309 if (short_plt_entry)
1310 {
1311 /* { lnk r28 } */
1312 pc++;
1313
1314 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1315 *pc++ |= create_Imm16_X0 (dist_got_entry)
1316 | create_Imm16_X1 (dist_got0);
1317
1318 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1319 *pc++ |= create_Imm16_X0 (plt_index);
1320 }
1321 else
1322 {
1323 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1324 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1325
1326 /* { moveli r27, &GOTPLT[0] ;
1327 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1328 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1329 | create_Imm16_X1 (dist_got_entry);
1330
1331 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1332 *pc++ |= create_Imm16_X1 (dist_got0);
1333
1334 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1335 pc++;
1336
1337 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1338 *pc++ |= create_Imm16_X0 (plt_index);
1339 }
1340
1341 /* Set the relocation offset. */
1342 *r_offset = got_offset;
1343
1344 return plt_index;
1345}
1346
1347/* Create an entry in an TILEGX ELF linker hash table. */
1348
1349static struct bfd_hash_entry *
1350link_hash_newfunc (struct bfd_hash_entry *entry,
1351 struct bfd_hash_table *table, const char *string)
1352{
1353 /* Allocate the structure if it has not already been allocated by a
1354 subclass. */
1355 if (entry == NULL)
1356 {
1357 entry =
1358 bfd_hash_allocate (table,
1359 sizeof (struct tilegx_elf_link_hash_entry));
1360 if (entry == NULL)
1361 return entry;
1362 }
1363
1364 /* Call the allocation method of the superclass. */
1365 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1366 if (entry != NULL)
1367 {
1368 struct tilegx_elf_link_hash_entry *eh;
1369
1370 eh = (struct tilegx_elf_link_hash_entry *) entry;
1371 eh->dyn_relocs = NULL;
1372 eh->tls_type = GOT_UNKNOWN;
1373 }
1374
1375 return entry;
1376}
1377
1378/* Create a TILEGX ELF linker hash table. */
1379
1380struct bfd_link_hash_table *
1381tilegx_elf_link_hash_table_create (bfd *abfd)
1382{
1383 struct tilegx_elf_link_hash_table *ret;
1384 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1385
1386 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1387 if (ret == NULL)
1388 return NULL;
1389
1390#ifdef BFD64
1391 if (ABI_64_P (abfd))
1392 {
1393 ret->bytes_per_word = 8;
1394 ret->word_align_power = 3;
1395 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1396 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1397 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1398 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1399 ret->r_info = tilegx_elf_r_info_64;
1400 ret->r_symndx = tilegx_elf_r_symndx_64;
1401 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1402 ret->put_word = tilegx_put_word_64;
1403 }
1404 else
1405#endif
1406 {
1407 ret->bytes_per_word = 4;
1408 ret->word_align_power = 2;
1409 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1410 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1411 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1412 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1413 ret->r_info = tilegx_elf_r_info_32;
1414 ret->r_symndx = tilegx_elf_r_symndx_32;
1415 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1416 ret->put_word = tilegx_put_word_32;
1417 }
1418
1419 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1420 sizeof (struct tilegx_elf_link_hash_entry),
1421 TILEGX_ELF_DATA))
1422 {
1423 free (ret);
1424 return NULL;
1425 }
1426
1427 return &ret->elf.root;
1428}
1429
1430/* Create the .got section. */
1431
1432static bfd_boolean
1433tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1434{
1435 flagword flags;
1436 asection *s, *s_got;
1437 struct elf_link_hash_entry *h;
1438 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1439 struct elf_link_hash_table *htab = elf_hash_table (info);
1440
1441 /* This function may be called more than once. */
3d4d4302
AM		 1442 s = bfd_get_linker_section (abfd, ".got");
1443 if (s != NULL)
aa137e4d
NC		 1444 return TRUE;
1445
1446 flags = bed->dynamic_sec_flags;
1447
3d4d4302
AM		 1448 s = bfd_make_section_anyway_with_flags (abfd,
1449 (bed->rela_plts_and_copies_p
1450 ? ".rela.got" : ".rel.got"),
1451 (bed->dynamic_sec_flags
1452 | SEC_READONLY));
aa137e4d
NC		 1453 if (s == NULL
1454 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1455 return FALSE;
1456 htab->srelgot = s;
1457
3d4d4302 1458 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
aa137e4d
NC		 1459 if (s == NULL
1460 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1461 return FALSE;
1462 htab->sgot = s;
1463
1464 /* The first bit of the global offset table is the header. */
1465 s->size += bed->got_header_size;
1466
1467 if (bed->want_got_plt)
1468 {
3d4d4302 1469 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
aa137e4d
NC		 1470 if (s == NULL
1471 || !bfd_set_section_alignment (abfd, s,
1472 bed->s->log_file_align))
1473 return FALSE;
1474 htab->sgotplt = s;
1475
1476 /* Reserve room for the header. */
1477 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1478 }
1479
1480 if (bed->want_got_sym)
1481 {
1482 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1483 section. We don't do this in the linker script because we don't want
1484 to define the symbol if we are not creating a global offset
1485 table. */
1486 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1487 "_GLOBAL_OFFSET_TABLE_");
1488 elf_hash_table (info)->hgot = h;
1489 if (h == NULL)
1490 return FALSE;
1491 }
1492
1493 return TRUE;
1494}
1495
1496/* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1497 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1498 hash table. */
1499
1500bfd_boolean
1501tilegx_elf_create_dynamic_sections (bfd *dynobj,
1502 struct bfd_link_info *info)
1503{
1504 struct tilegx_elf_link_hash_table *htab;
1505
1506 htab = tilegx_elf_hash_table (info);
1507 BFD_ASSERT (htab != NULL);
1508
1509 if (!tilegx_elf_create_got_section (dynobj, info))
1510 return FALSE;
1511
1512 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1513 return FALSE;
1514
3d4d4302 1515 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
aa137e4d 1516 if (!info->shared)
3d4d4302 1517 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
aa137e4d
NC		 1518
1519 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1520 || (!info->shared && !htab->srelbss))
1521 abort ();
1522
1523 return TRUE;
1524}
1525
1526/* Copy the extra info we tack onto an elf_link_hash_entry. */
1527
1528void
1529tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1530 struct elf_link_hash_entry *dir,
1531 struct elf_link_hash_entry *ind)
1532{
1533 struct tilegx_elf_link_hash_entry *edir, *eind;
1534
1535 edir = (struct tilegx_elf_link_hash_entry *) dir;
1536 eind = (struct tilegx_elf_link_hash_entry *) ind;
1537
1538 if (eind->dyn_relocs != NULL)
1539 {
1540 if (edir->dyn_relocs != NULL)
1541 {
1542 struct tilegx_elf_dyn_relocs **pp;
1543 struct tilegx_elf_dyn_relocs *p;
1544
1545 /* Add reloc counts against the indirect sym to the direct sym
1546 list. Merge any entries against the same section. */
1547 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1548 {
1549 struct tilegx_elf_dyn_relocs *q;
1550
1551 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1552 if (q->sec == p->sec)
1553 {
1554 q->pc_count += p->pc_count;
1555 q->count += p->count;
1556 *pp = p->next;
1557 break;
1558 }
1559 if (q == NULL)
1560 pp = &p->next;
1561 }
1562 *pp = edir->dyn_relocs;
1563 }
1564
1565 edir->dyn_relocs = eind->dyn_relocs;
1566 eind->dyn_relocs = NULL;
1567 }
1568
1569 if (ind->root.type == bfd_link_hash_indirect
1570 && dir->got.refcount <= 0)
1571 {
1572 edir->tls_type = eind->tls_type;
1573 eind->tls_type = GOT_UNKNOWN;
1574 }
1575 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1576}
1577
6f7be959
WL		 1578static int
1579tilegx_tls_translate_to_le (int r_type)
1580{
1581 switch (r_type)
1582 {
1583 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1584 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1585 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1586
1587 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1588 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1589 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1590
1591 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1592 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1593 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1594
1595 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1596 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1597 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1598
1599 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1600 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1601 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1602
1603 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1604 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1605 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1606 }
1607 return r_type;
1608}
1609
1610static int
1611tilegx_tls_translate_to_ie (int r_type)
1612{
1613 switch (r_type)
1614 {
1615 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1616 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1617 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1618
1619 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1620 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1621 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1622
1623 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1624 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1625 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1626
1627 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1628 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1629 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1630
1631 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1632 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1633 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1634
1635 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1636 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1637 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1638 }
1639 return r_type;
1640}
1641
1642static int
1643tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1644 int is_local, bfd_boolean disable_le_transition)
1645{
1646 if (info->shared)
1647 return r_type;
1648
1649 if (is_local && !disable_le_transition)
1650 return tilegx_tls_translate_to_le (r_type);
1651 else
1652 return tilegx_tls_translate_to_ie (r_type);
1653}
1654
aa137e4d
NC		 1655/* Look through the relocs for a section during the first phase, and
1656 allocate space in the global offset table or procedure linkage
1657 table. */
1658
1659bfd_boolean
1660tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1661 asection *sec, const Elf_Internal_Rela *relocs)
1662{
1663 struct tilegx_elf_link_hash_table *htab;
1664 Elf_Internal_Shdr *symtab_hdr;
1665 struct elf_link_hash_entry **sym_hashes;
aa137e4d
NC		 1666 const Elf_Internal_Rela *rel;
1667 const Elf_Internal_Rela *rel_end;
1668 asection *sreloc;
1669 int num_relocs;
6f7be959 1670 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
aa137e4d
NC		 1671
1672 if (info->relocatable)
1673 return TRUE;
1674
1675 htab = tilegx_elf_hash_table (info);
1676 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1677 sym_hashes = elf_sym_hashes (abfd);
aa137e4d
NC		 1678
1679 sreloc = NULL;
1680
1681 num_relocs = sec->reloc_count;
1682
1683 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1684
1685 if (htab->elf.dynobj == NULL)
1686 htab->elf.dynobj = abfd;
1687
1688 rel_end = relocs + num_relocs;
6f7be959
WL		 1689
1690 /* Check whether to do optimization to transform TLS GD/IE
1691 referehces to TLS LE. We disable it if we're linking with old
1692 TLS code sequences that do not support such optimization. Old
1693 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1694 no tls_add relocations. */
1695 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1696 {
1697 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1698 switch (r_type)
1699 {
1700 case R_TILEGX_TLS_GD_CALL:
1701 case R_TILEGX_TLS_IE_LOAD:
1702 has_tls_gd_or_ie = TRUE;
1703 break;
1704 case R_TILEGX_IMM8_X0_TLS_ADD:
1705 case R_TILEGX_IMM8_Y0_TLS_ADD:
1706 case R_TILEGX_IMM8_X1_TLS_ADD:
1707 case R_TILEGX_IMM8_Y1_TLS_ADD:
1708 has_tls_add = TRUE;
1709 break;
1710 }
1711 }
1712
1713 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1714 htab->disable_le_transition |= sec->sec_flg0;
1715
aa137e4d
NC		 1716 for (rel = relocs; rel < rel_end; rel++)
1717 {
1718 unsigned int r_type;
1719 unsigned long r_symndx;
1720 struct elf_link_hash_entry *h;
1721 int tls_type;
1722
1723 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1724 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1725
1726 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1727 {
1728 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1729 abfd, r_symndx);
1730 return FALSE;
1731 }
1732
1733 if (r_symndx < symtab_hdr->sh_info)
1734 h = NULL;
1735 else
1736 {
1737 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1738 while (h->root.type == bfd_link_hash_indirect
1739 || h->root.type == bfd_link_hash_warning)
1740 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1741 }
1742
6f7be959
WL		 1743 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1744 sec->sec_flg0);
aa137e4d
NC		 1745 switch (r_type)
1746 {
6f7be959
WL		 1747 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1748 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1749 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1750 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1751 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1752 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1753 if (info->shared)
1754 goto r_tilegx_plt32;
1755 break;
1756
aa137e4d
NC		 1757 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1758 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 1759 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1760 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1761 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1762 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
6f7be959
WL		 1763 BFD_ASSERT (info->shared);
1764 tls_type = GOT_TLS_GD;
aa137e4d
NC		 1765 goto have_got_reference;
1766
1767 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1768 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 1769 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1770 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1771 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1772 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 1773 tls_type = GOT_TLS_IE;
1774 if (info->shared)
1775 info->flags |= DF_STATIC_TLS;
1776 goto have_got_reference;
1777
1778 case R_TILEGX_IMM16_X0_HW0_GOT:
1779 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 1780 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1781 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1782 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1783 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 1784 tls_type = GOT_NORMAL;
1785 /* Fall Through */
1786
1787 have_got_reference:
1788 /* This symbol requires a global offset table entry. */
1789 {
1790 int old_tls_type;
1791
1792 if (h != NULL)
1793 {
1794 h->got.refcount += 1;
1795 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1796 }
1797 else
1798 {
1799 bfd_signed_vma *local_got_refcounts;
1800
1801 /* This is a global offset table entry for a local symbol. */
1802 local_got_refcounts = elf_local_got_refcounts (abfd);
1803 if (local_got_refcounts == NULL)
1804 {
1805 bfd_size_type size;
1806
1807 size = symtab_hdr->sh_info;
1808 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1809 local_got_refcounts = ((bfd_signed_vma *)
1810 bfd_zalloc (abfd, size));
1811 if (local_got_refcounts == NULL)
1812 return FALSE;
1813 elf_local_got_refcounts (abfd) = local_got_refcounts;
1814 _bfd_tilegx_elf_local_got_tls_type (abfd)
1815 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1816 }
1817 local_got_refcounts[r_symndx] += 1;
1818 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1819 }
1820
1821 /* If a TLS symbol is accessed using IE at least once,
1822 there is no point to use dynamic model for it. */
1823 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1824 && (old_tls_type != GOT_TLS_GD
1825 || tls_type != GOT_TLS_IE))
1826 {
1827 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1828 tls_type = old_tls_type;
1829 else
1830 {
1831 (*_bfd_error_handler)
1832 (_("%B: `%s' accessed both as normal and thread local symbol"),
1833 abfd, h ? h->root.root.string : "<local>");
1834 return FALSE;
1835 }
1836 }
1837
1838 if (old_tls_type != tls_type)
1839 {
1840 if (h != NULL)
1841 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1842 else
1843 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1844 }
1845 }
1846
1847 if (htab->elf.sgot == NULL)
1848 {
1849 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1850 return FALSE;
1851 }
1852 break;
1853
6f7be959
WL		 1854 case R_TILEGX_TLS_GD_CALL:
1855 if (info->shared)
1856 {
1857 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1858 against __tls_get_addr. */
1859 struct bfd_link_hash_entry *bh = NULL;
1860 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1861 "__tls_get_addr", 0,
1862 bfd_und_section_ptr, 0,
1863 NULL, FALSE, FALSE,
1864 &bh))
1865 return FALSE;
1866 h = (struct elf_link_hash_entry *) bh;
1867 }
1868 else
1869 break;
1870 /* Fall through */
1871
aa137e4d 1872 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 1873 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1874 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1875 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1876 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1877 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1878 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1879 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1880 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1881 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1882 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1883 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1884 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1885 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1886 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 1887 /* This symbol requires a procedure linkage table entry. We
1888 actually build the entry in adjust_dynamic_symbol,
1889 because this might be a case of linking PIC code without
1890 linking in any dynamic objects, in which case we don't
1891 need to generate a procedure linkage table after all. */
1892
1893 if (h != NULL)
1894 {
1895 h->needs_plt = 1;
1896 h->plt.refcount += 1;
1897 }
1898 break;
1899
1900 case R_TILEGX_64_PCREL:
1901 case R_TILEGX_32_PCREL:
1902 case R_TILEGX_16_PCREL:
1903 case R_TILEGX_8_PCREL:
1904 case R_TILEGX_IMM16_X0_HW0_PCREL:
1905 case R_TILEGX_IMM16_X1_HW0_PCREL:
1906 case R_TILEGX_IMM16_X0_HW1_PCREL:
1907 case R_TILEGX_IMM16_X1_HW1_PCREL:
1908 case R_TILEGX_IMM16_X0_HW2_PCREL:
1909 case R_TILEGX_IMM16_X1_HW2_PCREL:
1910 case R_TILEGX_IMM16_X0_HW3_PCREL:
1911 case R_TILEGX_IMM16_X1_HW3_PCREL:
1912 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1913 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1914 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1915 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1916 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1917 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1918 if (h != NULL)
1919 h->non_got_ref = 1;
1920
1921 if (h != NULL
1922 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1923 break;
1924 /* Fall through. */
1925
1926 case R_TILEGX_64:
1927 case R_TILEGX_32:
1928 case R_TILEGX_16:
1929 case R_TILEGX_8:
1930 case R_TILEGX_HW0:
1931 case R_TILEGX_HW1:
1932 case R_TILEGX_HW2:
1933 case R_TILEGX_HW3:
1934 case R_TILEGX_HW0_LAST:
1935 case R_TILEGX_HW1_LAST:
1936 case R_TILEGX_HW2_LAST:
1937 case R_TILEGX_COPY:
1938 case R_TILEGX_GLOB_DAT:
1939 case R_TILEGX_JMP_SLOT:
1940 case R_TILEGX_RELATIVE:
1941 case R_TILEGX_BROFF_X1:
1942 case R_TILEGX_JUMPOFF_X1:
1943 case R_TILEGX_IMM8_X0:
1944 case R_TILEGX_IMM8_Y0:
1945 case R_TILEGX_IMM8_X1:
1946 case R_TILEGX_IMM8_Y1:
1947 case R_TILEGX_DEST_IMM8_X1:
1948 case R_TILEGX_MT_IMM14_X1:
1949 case R_TILEGX_MF_IMM14_X1:
1950 case R_TILEGX_MMSTART_X0:
1951 case R_TILEGX_MMEND_X0:
1952 case R_TILEGX_SHAMT_X0:
1953 case R_TILEGX_SHAMT_X1:
1954 case R_TILEGX_SHAMT_Y0:
1955 case R_TILEGX_SHAMT_Y1:
1956 case R_TILEGX_IMM16_X0_HW0:
1957 case R_TILEGX_IMM16_X1_HW0:
1958 case R_TILEGX_IMM16_X0_HW1:
1959 case R_TILEGX_IMM16_X1_HW1:
1960 case R_TILEGX_IMM16_X0_HW2:
1961 case R_TILEGX_IMM16_X1_HW2:
1962 case R_TILEGX_IMM16_X0_HW3:
1963 case R_TILEGX_IMM16_X1_HW3:
1964 case R_TILEGX_IMM16_X0_HW0_LAST:
1965 case R_TILEGX_IMM16_X1_HW0_LAST:
1966 case R_TILEGX_IMM16_X0_HW1_LAST:
1967 case R_TILEGX_IMM16_X1_HW1_LAST:
1968 case R_TILEGX_IMM16_X0_HW2_LAST:
1969 case R_TILEGX_IMM16_X1_HW2_LAST:
1970 if (h != NULL)
6f7be959 1971 h->non_got_ref = 1;
aa137e4d 1972
6f7be959
WL		 1973 r_tilegx_plt32:
1974 if (h != NULL && !info->shared)
1975 {
1976 /* We may need a .plt entry if the function this reloc
1977 refers to is in a shared lib. */
1978 h->plt.refcount += 1;
1979 }
aa137e4d
NC		 1980
1981 /* If we are creating a shared library, and this is a reloc
1982 against a global symbol, or a non PC relative reloc
1983 against a local symbol, then we need to copy the reloc
1984 into the shared library. However, if we are linking with
1985 -Bsymbolic, we do not need to copy a reloc against a
1986 global symbol which is defined in an object we are
1987 including in the link (i.e., DEF_REGULAR is set). At
1988 this point we have not seen all the input files, so it is
1989 possible that DEF_REGULAR is not set now but will be set
1990 later (it is never cleared). In case of a weak definition,
1991 DEF_REGULAR may be cleared later by a strong definition in
1992 a shared library. We account for that possibility below by
1993 storing information in the relocs_copied field of the hash
1994 table entry. A similar situation occurs when creating
1995 shared libraries and symbol visibility changes render the
1996 symbol local.
1997
1998 If on the other hand, we are creating an executable, we
1999 may need to keep relocations for symbols satisfied by a
2000 dynamic library if we manage to avoid copy relocs for the
2001 symbol. */
2002 if ((info->shared
2003 && (sec->flags & SEC_ALLOC) != 0
2004 && (! tilegx_elf_howto_table[r_type].pc_relative
2005 || (h != NULL
2006 && (! info->symbolic
2007 || h->root.type == bfd_link_hash_defweak
2008 || !h->def_regular))))
2009 || (!info->shared
2010 && (sec->flags & SEC_ALLOC) != 0
2011 && h != NULL
2012 && (h->root.type == bfd_link_hash_defweak
2013 || !h->def_regular)))
2014 {
2015 struct tilegx_elf_dyn_relocs *p;
2016 struct tilegx_elf_dyn_relocs **head;
2017
2018 /* When creating a shared object, we must copy these
2019 relocs into the output file. We create a reloc
2020 section in dynobj and make room for the reloc. */
2021 if (sreloc == NULL)
2022 {
2023 sreloc = _bfd_elf_make_dynamic_reloc_section
2024 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2025 /*rela?*/ TRUE);
2026
2027 if (sreloc == NULL)
2028 return FALSE;
2029 }
2030
2031 /* If this is a global symbol, we count the number of
2032 relocations we need for this symbol. */
2033 if (h != NULL)
2034 head =
2035 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2036 else
2037 {
2038 /* Track dynamic relocs needed for local syms too.
2039 We really need local syms available to do this
2040 easily. Oh well. */
2041
2042 asection *s;
2043 void *vpp;
2044 Elf_Internal_Sym *isym;
2045
2046 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2047 abfd, r_symndx);
2048 if (isym == NULL)
2049 return FALSE;
2050
2051 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2052 if (s == NULL)
2053 s = sec;
2054
2055 vpp = &elf_section_data (s)->local_dynrel;
2056 head = (struct tilegx_elf_dyn_relocs **) vpp;
2057 }
2058
2059 p = *head;
2060 if (p == NULL || p->sec != sec)
2061 {
2062 bfd_size_type amt = sizeof *p;
2063 p = ((struct tilegx_elf_dyn_relocs *)
2064 bfd_alloc (htab->elf.dynobj, amt));
2065 if (p == NULL)
2066 return FALSE;
2067 p->next = *head;
2068 *head = p;
2069 p->sec = sec;
2070 p->count = 0;
2071 p->pc_count = 0;
2072 }
2073
2074 p->count += 1;
2075 if (tilegx_elf_howto_table[r_type].pc_relative)
2076 p->pc_count += 1;
2077 }
2078
2079 break;
2080
2081 case R_TILEGX_GNU_VTINHERIT:
2082 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2083 return FALSE;
2084 break;
2085
2086 case R_TILEGX_GNU_VTENTRY:
2087 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2088 return FALSE;
2089 break;
2090
2091 default:
2092 break;
2093 }
2094 }
2095
2096 return TRUE;
2097}
2098
2099\f
2100asection *
2101tilegx_elf_gc_mark_hook (asection *sec,
2102 struct bfd_link_info *info,
2103 Elf_Internal_Rela *rel,
2104 struct elf_link_hash_entry *h,
2105 Elf_Internal_Sym *sym)
2106{
2107 if (h != NULL)
2108 {
2109 switch (TILEGX_ELF_R_TYPE (rel->r_info))
b45b6908
AM		 2110 {
2111 case R_TILEGX_GNU_VTINHERIT:
2112 case R_TILEGX_GNU_VTENTRY:
2113 return NULL;
2114 }
2115 }
2116
2117 /* FIXME: The test here, in check_relocs and in relocate_section
2118 dealing with TLS optimization, ought to be !info->executable. */
2119 if (info->shared)
2120 {
2121 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2122 {
2123 case R_TILEGX_TLS_GD_CALL:
2124 /* This reloc implicitly references __tls_get_addr. We know
2125 another reloc will reference the same symbol as the one
2126 on this reloc, so the real symbol and section will be
2127 gc marked when processing the other reloc. That lets
2128 us handle __tls_get_addr here. */
2129 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
2130 FALSE, FALSE, TRUE);
2131 BFD_ASSERT (h != NULL);
2132 h->mark = 1;
2133 if (h->u.weakdef != NULL)
2134 h->u.weakdef->mark = 1;
2135 sym = NULL;
2136 }
aa137e4d
NC		 2137 }
2138
2139 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2140}
2141
2142/* Update the got entry reference counts for the section being removed. */
2143bfd_boolean
2144tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
2145 asection *sec, const Elf_Internal_Rela *relocs)
2146{
2147 struct tilegx_elf_link_hash_table *htab;
2148 Elf_Internal_Shdr *symtab_hdr;
2149 struct elf_link_hash_entry **sym_hashes;
2150 bfd_signed_vma *local_got_refcounts;
2151 const Elf_Internal_Rela *rel, *relend;
2152
2153 if (info->relocatable)
2154 return TRUE;
2155
2156 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
2157
2158 elf_section_data (sec)->local_dynrel = NULL;
2159
2160 htab = tilegx_elf_hash_table (info);
2161 BFD_ASSERT (htab != NULL);
2162 symtab_hdr = &elf_symtab_hdr (abfd);
2163 sym_hashes = elf_sym_hashes (abfd);
2164 local_got_refcounts = elf_local_got_refcounts (abfd);
2165
2166 relend = relocs + sec->reloc_count;
2167 for (rel = relocs; rel < relend; rel++)
2168 {
2169 unsigned long r_symndx;
2170 unsigned int r_type;
2171 struct elf_link_hash_entry *h = NULL;
2172
2173 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2174 if (r_symndx >= symtab_hdr->sh_info)
2175 {
2176 struct tilegx_elf_link_hash_entry *eh;
2177 struct tilegx_elf_dyn_relocs **pp;
2178 struct tilegx_elf_dyn_relocs *p;
2179
2180 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2181 while (h->root.type == bfd_link_hash_indirect
2182 || h->root.type == bfd_link_hash_warning)
2183 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2184 eh = (struct tilegx_elf_link_hash_entry *) h;
2185 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2186 if (p->sec == sec)
2187 {
2188 /* Everything must go for SEC. */
2189 *pp = p->next;
2190 break;
2191 }
2192 }
2193
2194 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
6f7be959
WL		 2195 r_type = tilegx_elf_tls_transition (info, r_type, h != NULL,
2196 sec->sec_flg0);
aa137e4d
NC		 2197 switch (r_type)
2198 {
2199 case R_TILEGX_IMM16_X0_HW0_GOT:
2200 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 2201 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2202 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2203 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2204 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 2205 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2206 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 2207 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2208 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2209 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2210 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 2211 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2212 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 2213 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2214 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2215 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2216 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 2217 if (h != NULL)
2218 {
2219 if (h->got.refcount > 0)
2220 h->got.refcount--;
2221 }
2222 else
2223 {
6f7be959
WL		 2224 if (local_got_refcounts &&
2225 local_got_refcounts[r_symndx] > 0)
aa137e4d
NC		 2226 local_got_refcounts[r_symndx]--;
2227 }
2228 break;
2229
2230 case R_TILEGX_64_PCREL:
2231 case R_TILEGX_32_PCREL:
2232 case R_TILEGX_16_PCREL:
2233 case R_TILEGX_8_PCREL:
2234 case R_TILEGX_IMM16_X0_HW0_PCREL:
2235 case R_TILEGX_IMM16_X1_HW0_PCREL:
2236 case R_TILEGX_IMM16_X0_HW1_PCREL:
2237 case R_TILEGX_IMM16_X1_HW1_PCREL:
2238 case R_TILEGX_IMM16_X0_HW2_PCREL:
2239 case R_TILEGX_IMM16_X1_HW2_PCREL:
2240 case R_TILEGX_IMM16_X0_HW3_PCREL:
2241 case R_TILEGX_IMM16_X1_HW3_PCREL:
2242 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2243 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2244 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2245 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2246 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2247 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2248 if (h != NULL
2249 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2250 break;
2251 /* Fall through. */
2252
2253 case R_TILEGX_64:
2254 case R_TILEGX_32:
2255 case R_TILEGX_16:
2256 case R_TILEGX_8:
2257 case R_TILEGX_HW0:
2258 case R_TILEGX_HW1:
2259 case R_TILEGX_HW2:
2260 case R_TILEGX_HW3:
2261 case R_TILEGX_HW0_LAST:
2262 case R_TILEGX_HW1_LAST:
2263 case R_TILEGX_HW2_LAST:
2264 case R_TILEGX_COPY:
2265 case R_TILEGX_GLOB_DAT:
2266 case R_TILEGX_JMP_SLOT:
2267 case R_TILEGX_RELATIVE:
2268 case R_TILEGX_BROFF_X1:
2269 case R_TILEGX_JUMPOFF_X1:
2270 case R_TILEGX_IMM8_X0:
2271 case R_TILEGX_IMM8_Y0:
2272 case R_TILEGX_IMM8_X1:
2273 case R_TILEGX_IMM8_Y1:
2274 case R_TILEGX_DEST_IMM8_X1:
2275 case R_TILEGX_MT_IMM14_X1:
2276 case R_TILEGX_MF_IMM14_X1:
2277 case R_TILEGX_MMSTART_X0:
2278 case R_TILEGX_MMEND_X0:
2279 case R_TILEGX_SHAMT_X0:
2280 case R_TILEGX_SHAMT_X1:
2281 case R_TILEGX_SHAMT_Y0:
2282 case R_TILEGX_SHAMT_Y1:
2283 case R_TILEGX_IMM16_X0_HW0:
2284 case R_TILEGX_IMM16_X1_HW0:
2285 case R_TILEGX_IMM16_X0_HW1:
2286 case R_TILEGX_IMM16_X1_HW1:
2287 case R_TILEGX_IMM16_X0_HW2:
2288 case R_TILEGX_IMM16_X1_HW2:
2289 case R_TILEGX_IMM16_X0_HW3:
2290 case R_TILEGX_IMM16_X1_HW3:
2291 case R_TILEGX_IMM16_X0_HW0_LAST:
2292 case R_TILEGX_IMM16_X1_HW0_LAST:
2293 case R_TILEGX_IMM16_X0_HW1_LAST:
2294 case R_TILEGX_IMM16_X1_HW1_LAST:
2295 case R_TILEGX_IMM16_X0_HW2_LAST:
2296 case R_TILEGX_IMM16_X1_HW2_LAST:
2297 if (info->shared)
2298 break;
2299 /* Fall through. */
2300
2301 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 2302 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
2303 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
2304 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
2305 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
2306 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
2307 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
2308 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
2309 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
2310 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
2311 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
2312 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
2313 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
2314 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
2315 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 2316 if (h != NULL)
2317 {
2318 if (h->plt.refcount > 0)
2319 h->plt.refcount--;
2320 }
2321 break;
2322
2323 default:
2324 break;
2325 }
2326 }
2327
2328 return TRUE;
2329}
2330
2331/* Adjust a symbol defined by a dynamic object and referenced by a
2332 regular object. The current definition is in some section of the
2333 dynamic object, but we're not including those sections. We have to
2334 change the definition to something the rest of the link can
2335 understand. */
2336
2337bfd_boolean
2338tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2339 struct elf_link_hash_entry *h)
2340{
2341 struct tilegx_elf_link_hash_table *htab;
2342 struct tilegx_elf_link_hash_entry * eh;
2343 struct tilegx_elf_dyn_relocs *p;
2344 bfd *dynobj;
2345 asection *s;
2346
2347 htab = tilegx_elf_hash_table (info);
2348 BFD_ASSERT (htab != NULL);
2349
2350 dynobj = htab->elf.dynobj;
2351
2352 /* Make sure we know what is going on here. */
2353 BFD_ASSERT (dynobj != NULL
2354 && (h->needs_plt
2355 || h->u.weakdef != NULL
2356 || (h->def_dynamic
2357 && h->ref_regular
2358 && !h->def_regular)));
2359
2360 /* If this is a function, put it in the procedure linkage table. We
2361 will fill in the contents of the procedure linkage table later
2362 (although we could actually do it here). */
2363 if (h->type == STT_FUNC || h->needs_plt)
2364 {
2365 if (h->plt.refcount <= 0
2366 || SYMBOL_CALLS_LOCAL (info, h)
2367 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2368 && h->root.type == bfd_link_hash_undefweak))
2369 {
2370 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2371 reloc in an input file, but the symbol was never referred
2372 to by a dynamic object, or if all references were garbage
2373 collected. In such a case, we don't actually need to build
2374 a procedure linkage table, and we can just do a
2375 R_TILEGX_JUMPOFF_X1 relocation instead. */
2376 h->plt.offset = (bfd_vma) -1;
2377 h->needs_plt = 0;
2378 }
2379
2380 return TRUE;
2381 }
2382 else
2383 h->plt.offset = (bfd_vma) -1;
2384
2385 /* If this is a weak symbol, and there is a real definition, the
2386 processor independent code will have arranged for us to see the
2387 real definition first, and we can just use the same value. */
2388 if (h->u.weakdef != NULL)
2389 {
2390 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2391 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2392 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2393 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2394 return TRUE;
2395 }
2396
2397 /* This is a reference to a symbol defined by a dynamic object which
2398 is not a function. */
2399
2400 /* If we are creating a shared library, we must presume that the
2401 only references to the symbol are via the global offset table.
2402 For such cases we need not do anything here; the relocations will
2403 be handled correctly by relocate_section. */
2404 if (info->shared)
2405 return TRUE;
2406
2407 /* If there are no references to this symbol that do not use the
2408 GOT, we don't need to generate a copy reloc. */
2409 if (!h->non_got_ref)
2410 return TRUE;
2411
2412 /* If -z nocopyreloc was given, we won't generate them either. */
2413 if (info->nocopyreloc)
2414 {
2415 h->non_got_ref = 0;
2416 return TRUE;
2417 }
2418
2419 eh = (struct tilegx_elf_link_hash_entry *) h;
2420 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2421 {
2422 s = p->sec->output_section;
2423 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2424 break;
2425 }
2426
2427 /* If we didn't find any dynamic relocs in read-only sections, then
2428 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2429 if (p == NULL)
2430 {
2431 h->non_got_ref = 0;
2432 return TRUE;
2433 }
2434
aa137e4d
NC		 2435 /* We must allocate the symbol in our .dynbss section, which will
2436 become part of the .bss section of the executable. There will be
2437 an entry for this symbol in the .dynsym section. The dynamic
2438 object will contain position independent code, so all references
2439 from the dynamic object to this symbol will go through the global
2440 offset table. The dynamic linker will use the .dynsym entry to
2441 determine the address it must put in the global offset table, so
2442 both the dynamic object and the regular object will refer to the
2443 same memory location for the variable. */
2444
2445 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2446 to copy the initial value out of the dynamic object and into the
2447 runtime process image. We need to remember the offset into the
2448 .rel.bss section we are going to use. */
1d7e9d18 2449 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
aa137e4d
NC		 2450 {
2451 htab->srelbss->size += TILEGX_ELF_RELA_BYTES (htab);
2452 h->needs_copy = 1;
2453 }
2454
2455 return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
2456}
2457
2458/* Allocate space in .plt, .got and associated reloc sections for
2459 dynamic relocs. */
2460
2461static bfd_boolean
e4d34ace 2462allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2463{
2464 struct bfd_link_info *info;
2465 struct tilegx_elf_link_hash_table *htab;
2466 struct tilegx_elf_link_hash_entry *eh;
2467 struct tilegx_elf_dyn_relocs *p;
2468
2469 if (h->root.type == bfd_link_hash_indirect)
2470 return TRUE;
2471
aa137e4d
NC		 2472 info = (struct bfd_link_info *) inf;
2473 htab = tilegx_elf_hash_table (info);
2474 BFD_ASSERT (htab != NULL);
2475
2476 if (htab->elf.dynamic_sections_created
2477 && h->plt.refcount > 0)
2478 {
2479 /* Make sure this symbol is output as a dynamic symbol.
2480 Undefined weak syms won't yet be marked as dynamic. */
2481 if (h->dynindx == -1
2482 && !h->forced_local)
2483 {
2484 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2485 return FALSE;
2486 }
2487
2488 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2489 {
2490 asection *s = htab->elf.splt;
2491
2492 /* Allocate room for the header and tail. */
2493 if (s->size == 0)
2494 {
663b5850 2495 s->size = PLT_ENTRY_SIZE;
aa137e4d
NC		 2496 }
2497
663b5850 2498 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
aa137e4d
NC		 2499
2500 /* If this symbol is not defined in a regular file, and we are
2501 not generating a shared library, then set the symbol to this
2502 location in the .plt. This is required to make function
2503 pointers compare as equal between the normal executable and
2504 the shared library. */
2505 if (! info->shared
2506 && !h->def_regular)
2507 {
2508 h->root.u.def.section = s;
2509 h->root.u.def.value = h->plt.offset;
2510 }
2511
2512 /* Make room for this entry. */
2513 s->size += PLT_ENTRY_SIZE;
2514
2515 /* We also need to make an entry in the .got.plt section. */
2516 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2517
2518 /* We also need to make an entry in the .rela.plt section. */
2519 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2520 }
2521 else
2522 {
2523 h->plt.offset = (bfd_vma) -1;
2524 h->needs_plt = 0;
2525 }
2526 }
2527 else
2528 {
2529 h->plt.offset = (bfd_vma) -1;
2530 h->needs_plt = 0;
2531 }
2532
6f7be959
WL		 2533 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2534 requiring no TLS entry. */
2535 if (h->got.refcount > 0
2536 && !htab->disable_le_transition
2537 && !info->shared
2538 && h->dynindx == -1
2539 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2540 h->got.offset = (bfd_vma) -1;
2541 else if (h->got.refcount > 0)
aa137e4d
NC		 2542 {
2543 asection *s;
2544 bfd_boolean dyn;
2545 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2546
2547 /* Make sure this symbol is output as a dynamic symbol.
2548 Undefined weak syms won't yet be marked as dynamic. */
2549 if (h->dynindx == -1
2550 && !h->forced_local)
2551 {
2552 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2553 return FALSE;
2554 }
2555
2556 s = htab->elf.sgot;
2557 h->got.offset = s->size;
2558 s->size += TILEGX_ELF_WORD_BYTES (htab);
2559 /* TLS_GD entries need 2 consecutive GOT slots. */
2560 if (tls_type == GOT_TLS_GD)
2561 s->size += TILEGX_ELF_WORD_BYTES (htab);
2562 dyn = htab->elf.dynamic_sections_created;
2563 /* TLS_IE needs one dynamic relocation,
2564 TLS_GD needs two if local symbol and two if global. */
2565 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2566 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2567 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2568 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2569 }
2570 else
2571 h->got.offset = (bfd_vma) -1;
2572
2573 eh = (struct tilegx_elf_link_hash_entry *) h;
2574 if (eh->dyn_relocs == NULL)
2575 return TRUE;
2576
2577 /* In the shared -Bsymbolic case, discard space allocated for
2578 dynamic pc-relative relocs against symbols which turn out to be
2579 defined in regular objects. For the normal shared case, discard
2580 space for pc-relative relocs that have become local due to symbol
2581 visibility changes. */
2582
2583 if (info->shared)
2584 {
2585 if (SYMBOL_CALLS_LOCAL (info, h))
2586 {
2587 struct tilegx_elf_dyn_relocs **pp;
2588
2589 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2590 {
2591 p->count -= p->pc_count;
2592 p->pc_count = 0;
2593 if (p->count == 0)
2594 *pp = p->next;
2595 else
2596 pp = &p->next;
2597 }
2598 }
2599
2600 /* Also discard relocs on undefined weak syms with non-default
2601 visibility. */
2602 if (eh->dyn_relocs != NULL
2603 && h->root.type == bfd_link_hash_undefweak)
2604 {
2605 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2606 eh->dyn_relocs = NULL;
2607
2608 /* Make sure undefined weak symbols are output as a dynamic
2609 symbol in PIEs. */
2610 else if (h->dynindx == -1
2611 && !h->forced_local)
2612 {
2613 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2614 return FALSE;
2615 }
2616 }
2617 }
2618 else
2619 {
2620 /* For the non-shared case, discard space for relocs against
2621 symbols which turn out to need copy relocs or are not
2622 dynamic. */
2623
2624 if (!h->non_got_ref
2625 && ((h->def_dynamic
2626 && !h->def_regular)
2627 || (htab->elf.dynamic_sections_created
2628 && (h->root.type == bfd_link_hash_undefweak
2629 || h->root.type == bfd_link_hash_undefined))))
2630 {
2631 /* Make sure this symbol is output as a dynamic symbol.
2632 Undefined weak syms won't yet be marked as dynamic. */
2633 if (h->dynindx == -1
2634 && !h->forced_local)
2635 {
2636 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2637 return FALSE;
2638 }
2639
2640 /* If that succeeded, we know we'll be keeping all the
2641 relocs. */
2642 if (h->dynindx != -1)
2643 goto keep;
2644 }
2645
2646 eh->dyn_relocs = NULL;
2647
2648 keep: ;
2649 }
2650
2651 /* Finally, allocate space. */
2652 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2653 {
2654 asection *sreloc = elf_section_data (p->sec)->sreloc;
2655 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2656 }
2657
2658 return TRUE;
2659}
2660
2661/* Find any dynamic relocs that apply to read-only sections. */
2662
2663static bfd_boolean
e4d34ace 2664readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
aa137e4d
NC		 2665{
2666 struct tilegx_elf_link_hash_entry *eh;
2667 struct tilegx_elf_dyn_relocs *p;
2668
aa137e4d
NC		 2669 eh = (struct tilegx_elf_link_hash_entry *) h;
2670 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2671 {
2672 asection *s = p->sec->output_section;
2673
2674 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2675 {
2676 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2677
2678 info->flags |= DF_TEXTREL;
2679
2680 /* Not an error, just cut short the traversal. */
2681 return FALSE;
2682 }
2683 }
2684 return TRUE;
2685}
2686
2687/* Return true if the dynamic symbol for a given section should be
2688 omitted when creating a shared library. */
2689
2690bfd_boolean
2691tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2692 struct bfd_link_info *info,
2693 asection *p)
2694{
2695 /* We keep the .got section symbol so that explicit relocations
2696 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2697 can be turned into relocations against the .got symbol. */
2698 if (strcmp (p->name, ".got") == 0)
2699 return FALSE;
2700
2701 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2702}
2703
2704bfd_boolean
2705tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2706 struct bfd_link_info *info)
2707{
2708 struct tilegx_elf_link_hash_table *htab;
2709 bfd *dynobj;
2710 asection *s;
2711 bfd *ibfd;
2712
2713 htab = tilegx_elf_hash_table (info);
2714 BFD_ASSERT (htab != NULL);
2715 dynobj = htab->elf.dynobj;
2716 BFD_ASSERT (dynobj != NULL);
2717
2718 if (elf_hash_table (info)->dynamic_sections_created)
2719 {
2720 /* Set the contents of the .interp section to the interpreter. */
2721 if (info->executable)
2722 {
3d4d4302 2723 s = bfd_get_linker_section (dynobj, ".interp");
aa137e4d
NC		 2724 BFD_ASSERT (s != NULL);
2725 s->size = strlen (htab->dynamic_interpreter) + 1;
2726 s->contents = (unsigned char *) htab->dynamic_interpreter;
2727 }
2728 }
2729
2730 /* Set up .got offsets for local syms, and space for local dynamic
2731 relocs. */
2732 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2733 {
2734 bfd_signed_vma *local_got;
2735 bfd_signed_vma *end_local_got;
2736 char *local_tls_type;
2737 bfd_size_type locsymcount;
2738 Elf_Internal_Shdr *symtab_hdr;
2739 asection *srel;
2740
2741 if (! is_tilegx_elf (ibfd))
2742 continue;
2743
2744 for (s = ibfd->sections; s != NULL; s = s->next)
2745 {
2746 struct tilegx_elf_dyn_relocs *p;
2747
2748 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2749 {
2750 if (!bfd_is_abs_section (p->sec)
2751 && bfd_is_abs_section (p->sec->output_section))
2752 {
2753 /* Input section has been discarded, either because
2754 it is a copy of a linkonce section or due to
2755 linker script /DISCARD/, so we'll be discarding
2756 the relocs too. */
2757 }
2758 else if (p->count != 0)
2759 {
2760 srel = elf_section_data (p->sec)->sreloc;
2761 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2762 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2763 info->flags |= DF_TEXTREL;
2764 }
2765 }
2766 }
2767
2768 local_got = elf_local_got_refcounts (ibfd);
2769 if (!local_got)
2770 continue;
2771
2772 symtab_hdr = &elf_symtab_hdr (ibfd);
2773 locsymcount = symtab_hdr->sh_info;
2774 end_local_got = local_got + locsymcount;
2775 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2776 s = htab->elf.sgot;
2777 srel = htab->elf.srelgot;
2778 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2779 {
2780 if (*local_got > 0)
2781 {
2782 *local_got = s->size;
2783 s->size += TILEGX_ELF_WORD_BYTES (htab);
2784 if (*local_tls_type == GOT_TLS_GD)
2785 s->size += TILEGX_ELF_WORD_BYTES (htab);
2786 if (info->shared
2787 || *local_tls_type == GOT_TLS_GD
2788 || *local_tls_type == GOT_TLS_IE)
2789 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2790 }
2791 else
2792 *local_got = (bfd_vma) -1;
2793 }
2794 }
2795
2796 /* Allocate global sym .plt and .got entries, and space for global
2797 sym dynamic relocs. */
e4d34ace 2798 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
aa137e4d
NC		 2799
2800 if (elf_hash_table (info)->dynamic_sections_created)
2801 {
2802 /* If the .got section is more than 0x8000 bytes, we add
2803 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2804 bit relocations have a greater chance of working. */
2805 if (htab->elf.sgot->size >= 0x8000
2806 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2807 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2808 }
2809
2810 if (htab->elf.sgotplt)
2811 {
2812 struct elf_link_hash_entry *got;
2813 got = elf_link_hash_lookup (elf_hash_table (info),
2814 "_GLOBAL_OFFSET_TABLE_",
2815 FALSE, FALSE, FALSE);
2816
2817 /* Don't allocate .got.plt section if there are no GOT nor PLT
2818 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2819 if ((got == NULL
2820 || !got->ref_regular_nonweak)
2821 && (htab->elf.sgotplt->size
2822 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2823 && (htab->elf.splt == NULL
2824 || htab->elf.splt->size == 0)
2825 && (htab->elf.sgot == NULL
2826 || (htab->elf.sgot->size
2827 == get_elf_backend_data (output_bfd)->got_header_size)))
2828 htab->elf.sgotplt->size = 0;
2829 }
2830
2831 /* The check_relocs and adjust_dynamic_symbol entry points have
2832 determined the sizes of the various dynamic sections. Allocate
2833 memory for them. */
2834 for (s = dynobj->sections; s != NULL; s = s->next)
2835 {
2836 if ((s->flags & SEC_LINKER_CREATED) == 0)
2837 continue;
2838
2839 if (s == htab->elf.splt
2840 || s == htab->elf.sgot
2841 || s == htab->elf.sgotplt
2842 || s == htab->sdynbss)
2843 {
2844 /* Strip this section if we don't need it; see the
2845 comment below. */
2846 }
2847 else if (strncmp (s->name, ".rela", 5) == 0)
2848 {
2849 if (s->size != 0)
2850 {
2851 /* We use the reloc_count field as a counter if we need
2852 to copy relocs into the output file. */
2853 s->reloc_count = 0;
2854 }
2855 }
2856 else
2857 {
2858 /* It's not one of our sections. */
2859 continue;
2860 }
2861
2862 if (s->size == 0)
2863 {
2864 /* If we don't need this section, strip it from the
2865 output file. This is mostly to handle .rela.bss and
2866 .rela.plt. We must create both sections in
2867 create_dynamic_sections, because they must be created
2868 before the linker maps input sections to output
2869 sections. The linker does that before
2870 adjust_dynamic_symbol is called, and it is that
2871 function which decides whether anything needs to go
2872 into these sections. */
2873 s->flags |= SEC_EXCLUDE;
2874 continue;
2875 }
2876
2877 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2878 continue;
2879
2880 /* Allocate memory for the section contents. Zero the memory
2881 for the benefit of .rela.plt, which has 4 unused entries
2882 at the beginning, and we don't want garbage. */
2883 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2884 if (s->contents == NULL)
2885 return FALSE;
2886 }
2887
2888 if (elf_hash_table (info)->dynamic_sections_created)
2889 {
2890 /* Add some entries to the .dynamic section. We fill in the
2891 values later, in tilegx_elf_finish_dynamic_sections, but we
2892 must add the entries now so that we get the correct size for
2893 the .dynamic section. The DT_DEBUG entry is filled in by the
2894 dynamic linker and used by the debugger. */
2895#define add_dynamic_entry(TAG, VAL) \
2896 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2897
2898 if (info->executable)
2899 {
2900 if (!add_dynamic_entry (DT_DEBUG, 0))
2901 return FALSE;
2902 }
2903
2904 if (htab->elf.srelplt->size != 0)
2905 {
2906 if (!add_dynamic_entry (DT_PLTGOT, 0)
2907 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2908 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2909 || !add_dynamic_entry (DT_JMPREL, 0))
2910 return FALSE;
2911 }
2912
2913 if (!add_dynamic_entry (DT_RELA, 0)
2914 || !add_dynamic_entry (DT_RELASZ, 0)
2915 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2916 return FALSE;
2917
2918 /* If any dynamic relocs apply to a read-only section,
2919 then we need a DT_TEXTREL entry. */
2920 if ((info->flags & DF_TEXTREL) == 0)
e4d34ace 2921 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
aa137e4d
NC		 2922
2923 if (info->flags & DF_TEXTREL)
2924 {
2925 if (!add_dynamic_entry (DT_TEXTREL, 0))
2926 return FALSE;
2927 }
2928 }
2929#undef add_dynamic_entry
2930
2931 return TRUE;
2932}
2933\f
2934/* Return the base VMA address which should be subtracted from real addresses
2935 when resolving @dtpoff relocation.
2936 This is PT_TLS segment p_vaddr. */
2937
2938static bfd_vma
2939dtpoff_base (struct bfd_link_info *info)
2940{
2941 /* If tls_sec is NULL, we should have signalled an error already. */
2942 if (elf_hash_table (info)->tls_sec == NULL)
2943 return 0;
2944 return elf_hash_table (info)->tls_sec->vma;
2945}
2946
2947/* Return the relocation value for @tpoff relocation. */
2948
2949static bfd_vma
2950tpoff (struct bfd_link_info *info, bfd_vma address)
2951{
2952 struct elf_link_hash_table *htab = elf_hash_table (info);
2953
2954 /* If tls_sec is NULL, we should have signalled an error already. */
2955 if (htab->tls_sec == NULL)
2956 return 0;
2957
2958 return (address - htab->tls_sec->vma);
2959}
2960
6f7be959
WL		 2961/* Copy SIZE bits from FROM to TO at address ADDR. */
2962
2963static void
2964tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2965{
2966 int i;
2967 for (i = 0; i < size; i++)
2968 {
2969 int from_byte = (from + i) / 8;
2970 int from_bit = (from + i) % 8;
2971 int to_byte = (to + i) / 8;
2972 int to_bit = (to + i) % 8;
2973 bfd_byte to_mask = 1 << to_bit;
2974 addr[to_byte] = (addr[to_byte] & ~to_mask)
2975 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2976 }
2977}
2978
2979/* Replace the MASK bits in ADDR with those in INSN, for the next
2980 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2981
2982static void
2983tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2984 const bfd_byte *insn)
2985{
2986 int i;
2987 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2988 {
2989 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2990 }
2991}
2992
2993/* Mask to extract the bits corresponding to an instruction in a
2994 specific pipe of a bundle. */
2995static const bfd_byte insn_mask_X1[] = {
2996 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2997};
2998
2999/* Mask to extract the bits corresponding to an instruction in a
3000 specific pipe of a bundle, minus the destination operand and the
3001 first source operand. */
68ffbac6 3002static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
6f7be959
WL		 3003 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
3004};
3005
3006static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
3007 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
3008};
3009
3010static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
3011 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
3012};
3013static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
3014 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
3015};
3016
3017/* Mask to extract the bits corresponding to an instruction in a
3018 specific pipe of a bundle, minus the register operands. */
3019static const bfd_byte insn_mask_X0_no_operand[] = {
3020 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
3021};
3022
3023static const bfd_byte insn_mask_X1_no_operand[] = {
3024 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
3025};
3026
3027static const bfd_byte insn_mask_Y0_no_operand[] = {
3028 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
3029};
3030
3031static const bfd_byte insn_mask_Y1_no_operand[] = {
3032 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
3033};
3034
3035/* Various instructions synthesized to support tls references. */
3036
3037/* ld r0, r0 in the X1 pipe, used for tls ie. */
3038static const bfd_byte insn_tls_ie_ld_X1[] = {
3039 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
3040};
3041
3042/* ld4s r0, r0 in the X1 pipe, used for tls ie. */
3043static const bfd_byte insn_tls_ie_ld4s_X1[] = {
3044 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
3045};
3046
3047/* add r0, r0, tp in various pipes, used for tls ie. */
3048static const bfd_byte insn_tls_ie_add_X0X1[] = {
3049 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
3050};
3051static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
3052 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
3053};
3054
3055/* addx r0, r0, tp in various pipes, used for tls ie. */
3056static const bfd_byte insn_tls_ie_addx_X0X1[] = {
3057 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
3058};
3059static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
3060 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
3061};
3062
3063/* move r0, r0 in various pipes, used for tls gd. */
3064static const bfd_byte insn_tls_gd_add_X0X1[] = {
3065 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
3066};
3067static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
3068 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
3069};
3070
3071static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
3072static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
3073
3074static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
3075static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
3076
3077static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
3078static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
3079
aa137e4d
NC		 3080/* Relocate an TILEGX ELF section.
3081
3082 The RELOCATE_SECTION function is called by the new ELF backend linker
3083 to handle the relocations for a section.
3084
3085 The relocs are always passed as Rela structures.
3086
3087 This function is responsible for adjusting the section contents as
3088 necessary, and (if generating a relocatable output file) adjusting
3089 the reloc addend as necessary.
3090
3091 This function does not have to worry about setting the reloc
3092 address or the reloc symbol index.
3093
3094 LOCAL_SYMS is a pointer to the swapped in local symbols.
3095
3096 LOCAL_SECTIONS is an array giving the section in the input file
3097 corresponding to the st_shndx field of each local symbol.
3098
3099 The global hash table entry for the global symbols can be found
3100 via elf_sym_hashes (input_bfd).
3101
3102 When generating relocatable output, this function must handle
3103 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
3104 going to be the section symbol corresponding to the output
3105 section, which means that the addend must be adjusted
3106 accordingly. */
3107
3108bfd_boolean
3109tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3110 bfd *input_bfd, asection *input_section,
3111 bfd_byte *contents, Elf_Internal_Rela *relocs,
3112 Elf_Internal_Sym *local_syms,
3113 asection **local_sections)
3114{
3115 struct tilegx_elf_link_hash_table *htab;
3116 Elf_Internal_Shdr *symtab_hdr;
3117 struct elf_link_hash_entry **sym_hashes;
3118 bfd_vma *local_got_offsets;
535127d2 3119 bfd_vma got_base;
aa137e4d
NC		 3120 asection *sreloc;
3121 Elf_Internal_Rela *rel;
3122 Elf_Internal_Rela *relend;
3123 int num_relocs;
3124
3125 htab = tilegx_elf_hash_table (info);
3126 BFD_ASSERT (htab != NULL);
3127 symtab_hdr = &elf_symtab_hdr (input_bfd);
3128 sym_hashes = elf_sym_hashes (input_bfd);
3129 local_got_offsets = elf_local_got_offsets (input_bfd);
3130
535127d2
WL		 3131 if (elf_hash_table (info)->hgot == NULL)
3132 got_base = 0;
3133 else
3134 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3135
aa137e4d
NC		 3136 sreloc = elf_section_data (input_section)->sreloc;
3137
3138 rel = relocs;
3139 num_relocs = input_section->reloc_count;
3140 relend = relocs + num_relocs;
3141 for (; rel < relend; rel++)
3142 {
3143 int r_type, tls_type;
6f7be959 3144 bfd_boolean is_tls_iele, is_tls_le;
aa137e4d
NC		 3145 reloc_howto_type *howto;
3146 unsigned long r_symndx;
3147 struct elf_link_hash_entry *h;
3148 Elf_Internal_Sym *sym;
3149 tilegx_create_func create_func;
3150 asection *sec;
3151 bfd_vma relocation;
3152 bfd_reloc_status_type r;
3153 const char *name;
3154 bfd_vma off;
3155 bfd_boolean is_plt = FALSE;
3156
3157 bfd_boolean unresolved_reloc;
3158
3159 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
3160 if (r_type == R_TILEGX_GNU_VTINHERIT
3161 || r_type == R_TILEGX_GNU_VTENTRY)
3162 continue;
3163
3164 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3165 {
3166 /* Not clear if we need to check here, but just be paranoid. */
3167 (*_bfd_error_handler)
3168 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
3169 input_bfd, r_type, input_section);
3170 bfd_set_error (bfd_error_bad_value);
3171 return FALSE;
3172 }
3173
3174 howto = tilegx_elf_howto_table + r_type;
3175
3176 /* This is a final link. */
3177 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3178 h = NULL;
3179 sym = NULL;
3180 sec = NULL;
3181 unresolved_reloc = FALSE;
3182 if (r_symndx < symtab_hdr->sh_info)
3183 {
3184 sym = local_syms + r_symndx;
3185 sec = local_sections[r_symndx];
3186 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3187 }
3188 else
3189 {
3190 bfd_boolean warned;
3191
3192 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3193 r_symndx, symtab_hdr, sym_hashes,
3194 h, sec, relocation,
3195 unresolved_reloc, warned);
3196 if (warned)
3197 {
3198 /* To avoid generating warning messages about truncated
3199 relocations, set the relocation's address to be the same as
3200 the start of this section. */
3201 if (input_section->output_section != NULL)
3202 relocation = input_section->output_section->vma;
3203 else
3204 relocation = 0;
3205 }
3206 }
3207
dbaa2011 3208 if (sec != NULL && discarded_section (sec))
aa137e4d 3209 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3210 rel, 1, relend, howto, 0, contents);
aa137e4d
NC		 3211
3212 if (info->relocatable)
3213 continue;
3214
3215 if (h != NULL)
3216 name = h->root.root.string;
3217 else
3218 {
3219 name = (bfd_elf_string_from_elf_section
3220 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3221 if (name == NULL || *name == '\0')
3222 name = bfd_section_name (input_bfd, sec);
3223 }
3224
6f7be959
WL		 3225 switch (r_type)
3226 {
3227 case R_TILEGX_TLS_GD_CALL:
3228 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3229 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3230 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3231 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3232 case R_TILEGX_IMM8_X0_TLS_ADD:
3233 case R_TILEGX_IMM8_Y0_TLS_ADD:
3234 case R_TILEGX_IMM8_X1_TLS_ADD:
3235 case R_TILEGX_IMM8_Y1_TLS_ADD:
3236 tls_type = GOT_UNKNOWN;
3237 if (h == NULL && local_got_offsets)
3238 tls_type =
3239 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3240 else if (h != NULL)
3241 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3242
3243 is_tls_iele = (! info->shared || tls_type == GOT_TLS_IE);
3244 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3245 && !info->shared
3246 && (h == NULL || h->dynindx == -1));
3247
3248 if (r_type == R_TILEGX_TLS_GD_CALL)
3249 {
3250 if (is_tls_le)
3251 {
3252 /* GD -> LE */
3253 tilegx_replace_insn (contents + rel->r_offset,
3254 insn_mask_X1, insn_move_X0X1);
3255 continue;
3256 }
3257 else if (is_tls_iele)
3258 {
3259 /* GD -> IE */
3260 if (ABI_64_P (output_bfd))
3261 tilegx_replace_insn (contents + rel->r_offset,
3262 insn_mask_X1, insn_tls_ie_ld_X1);
3263 else
3264 tilegx_replace_insn (contents + rel->r_offset,
3265 insn_mask_X1, insn_tls_ie_ld4s_X1);
3266 continue;
3267 }
3268
3269 /* GD -> GD */
3270 h = (struct elf_link_hash_entry *)
3271 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3272 FALSE, TRUE);
3273 BFD_ASSERT (h != NULL);
3274 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3275 howto = tilegx_elf_howto_table + r_type;
3276 }
3277 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3278 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3279 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3280 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3281 {
3282 bfd_boolean is_pipe0 =
3283 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3284 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3285 bfd_boolean is_X0X1 =
3286 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3287 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3288 int dest_begin = is_pipe0 ? 0 : 31;
3289 int src_begin;
3290 const bfd_byte *insn;
84abc003 3291 const bfd_byte *mask = NULL;
6f7be959
WL		 3292
3293 if (is_tls_le)
3294 {
3295 /* 1. copy dest operand into the first source operand.
3296 2. change the opcode to "move". */
3297 src_begin = is_pipe0 ? 6 : 37;
3298 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3299
3300 switch (r_type)
3301 {
3302 case R_TILEGX_IMM8_X0_TLS_ADD:
3303 mask = insn_mask_X0_no_dest_no_srca;
3304 break;
3305 case R_TILEGX_IMM8_X1_TLS_ADD:
3306 mask = insn_mask_X1_no_dest_no_srca;
3307 break;
3308 case R_TILEGX_IMM8_Y0_TLS_ADD:
3309 mask = insn_mask_Y0_no_dest_no_srca;
3310 break;
3311 case R_TILEGX_IMM8_Y1_TLS_ADD:
3312 mask = insn_mask_Y1_no_dest_no_srca;
3313 break;
3314 }
3315 }
3316 else
3317 {
3318 /* 1. copy dest operand into the second source operand.
3319 2. change the opcode to "add". */
3320 src_begin = is_pipe0 ? 12 : 43;
3321 if (ABI_64_P (output_bfd))
3322 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3323 else
3324 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3325
3326 switch (r_type)
3327 {
3328 case R_TILEGX_IMM8_X0_TLS_ADD:
3329 mask = insn_mask_X0_no_operand;
3330 break;
3331 case R_TILEGX_IMM8_X1_TLS_ADD:
3332 mask = insn_mask_X1_no_operand;
3333 break;
3334 case R_TILEGX_IMM8_Y0_TLS_ADD:
3335 mask = insn_mask_Y0_no_operand;
3336 break;
3337 case R_TILEGX_IMM8_Y1_TLS_ADD:
3338 mask = insn_mask_Y1_no_operand;
3339 break;
3340 }
3341 }
3342
3343 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3344 src_begin, 6);
3345 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3346
3347 continue;
3348 }
3349 else
3350 {
3351 const bfd_byte *mask = NULL;
3352 const bfd_byte *add_insn = NULL;
3353 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3354
3355 switch (r_type)
3356 {
3357 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3358 add_insn = is_tls_iele
3359 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3360 : insn_tls_gd_add_X0X1;
3361 mask = insn_mask_X0_no_dest_no_srca;
3362 break;
3363 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3364 add_insn = is_tls_iele
3365 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3366 : insn_tls_gd_add_X0X1;
3367 mask = insn_mask_X1_no_dest_no_srca;
3368 break;
3369 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3370 add_insn = is_tls_iele
3371 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3372 : insn_tls_gd_add_Y0Y1;
3373 mask = insn_mask_Y0_no_dest_no_srca;
3374 break;
3375 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3376 add_insn = is_tls_iele
3377 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3378 : insn_tls_gd_add_Y0Y1;
3379 mask = insn_mask_Y1_no_dest_no_srca;
3380 break;
3381 }
3382
3383 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3384
3385 continue;
3386 }
3387 break;
3388 case R_TILEGX_TLS_IE_LOAD:
3389 if (!input_section->sec_flg0
3390 && !info->shared
3391 && (h == NULL || h->dynindx == -1))
3392 {
3393 /* IE -> LE */
3394 tilegx_replace_insn (contents + rel->r_offset,
3395 insn_mask_X1_no_dest_no_srca,
3396 insn_move_X0X1);
3397 }
3398 else
3399 {
3400 /* IE -> IE */
3401 if (ABI_64_P (output_bfd))
3402 tilegx_replace_insn (contents + rel->r_offset,
3403 insn_mask_X1_no_dest_no_srca,
3404 insn_tls_ie_ld_X1);
3405 else
3406 tilegx_replace_insn (contents + rel->r_offset,
3407 insn_mask_X1_no_dest_no_srca,
3408 insn_tls_ie_ld4s_X1);
3409 }
3410 continue;
3411 break;
3412 default:
3413 break;
3414 }
3415
aa137e4d
NC		 3416 switch (r_type)
3417 {
3418 case R_TILEGX_IMM16_X0_HW0_GOT:
3419 case R_TILEGX_IMM16_X1_HW0_GOT:
aa137e4d
NC		 3420 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3421 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3422 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3423 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
aa137e4d
NC		 3424 /* Relocation is to the entry for this symbol in the global
3425 offset table. */
3426 if (htab->elf.sgot == NULL)
3427 abort ();
3428
3429 if (h != NULL)
3430 {
3431 bfd_boolean dyn;
3432
3433 off = h->got.offset;
3434 BFD_ASSERT (off != (bfd_vma) -1);
3435 dyn = elf_hash_table (info)->dynamic_sections_created;
3436
3437 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3438 || (info->shared
3439 && SYMBOL_REFERENCES_LOCAL (info, h)))
3440 {
3441 /* This is actually a static link, or it is a
3442 -Bsymbolic link and the symbol is defined
3443 locally, or the symbol was forced to be local
3444 because of a version file. We must initialize
3445 this entry in the global offset table. Since the
3446 offset must always be a multiple
3447 of 8 for 64-bit, we use the least significant bit
3448 to record whether we have initialized it already.
3449
3450 When doing a dynamic link, we create a .rela.got
3451 relocation entry to initialize the value. This
3452 is done in the finish_dynamic_symbol routine. */
3453 if ((off & 1) != 0)
3454 off &= ~1;
3455 else
3456 {
3457 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3458 htab->elf.sgot->contents + off);
3459 h->got.offset |= 1;
3460 }
3461 }
3462 else
3463 unresolved_reloc = FALSE;
3464 }
3465 else
3466 {
3467 BFD_ASSERT (local_got_offsets != NULL
3468 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3469
3470 off = local_got_offsets[r_symndx];
3471
3472 /* The offset must always be a multiple of 8 on 64-bit.
3473 We use the least significant bit to record
3474 whether we have already processed this entry. */
3475 if ((off & 1) != 0)
3476 off &= ~1;
3477 else
3478 {
3479 if (info->shared)
3480 {
3481 asection *s;
3482 Elf_Internal_Rela outrel;
3483
3484 /* We need to generate a R_TILEGX_RELATIVE reloc
3485 for the dynamic linker. */
3486 s = htab->elf.srelgot;
3487 BFD_ASSERT (s != NULL);
3488
3489 outrel.r_offset = (htab->elf.sgot->output_section->vma
3490 + htab->elf.sgot->output_offset
3491 + off);
3492 outrel.r_info =
3493 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3494 outrel.r_addend = relocation;
3495 relocation = 0;
3496 tilegx_elf_append_rela (output_bfd, s, &outrel);
3497 }
3498
3499 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3500 htab->elf.sgot->contents + off);
3501 local_got_offsets[r_symndx] |= 1;
3502 }
3503 }
535127d2 3504 relocation = off - got_base;
aa137e4d
NC		 3505 break;
3506
3507 case R_TILEGX_JUMPOFF_X1_PLT:
e5b95258
WL		 3508 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3509 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3510 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3511 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3512 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3513 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3514 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3515 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3516 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3517 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3518 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3519 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3520 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3521 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
aa137e4d
NC		 3522 /* Relocation is to the entry for this symbol in the
3523 procedure linkage table. */
3524 BFD_ASSERT (h != NULL);
3525
3526 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3527 {
3528 /* We didn't make a PLT entry for this symbol. This
3529 happens when statically linking PIC code, or when
3530 using -Bsymbolic. */
3531 break;
3532 }
3533
3534 relocation = (htab->elf.splt->output_section->vma
3535 + htab->elf.splt->output_offset
3536 + h->plt.offset);
3537 unresolved_reloc = FALSE;
3538 break;
3539
3540 case R_TILEGX_64_PCREL:
3541 case R_TILEGX_32_PCREL:
3542 case R_TILEGX_16_PCREL:
3543 case R_TILEGX_8_PCREL:
3544 case R_TILEGX_IMM16_X0_HW0_PCREL:
3545 case R_TILEGX_IMM16_X1_HW0_PCREL:
3546 case R_TILEGX_IMM16_X0_HW1_PCREL:
3547 case R_TILEGX_IMM16_X1_HW1_PCREL:
3548 case R_TILEGX_IMM16_X0_HW2_PCREL:
3549 case R_TILEGX_IMM16_X1_HW2_PCREL:
3550 case R_TILEGX_IMM16_X0_HW3_PCREL:
3551 case R_TILEGX_IMM16_X1_HW3_PCREL:
3552 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3553 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3554 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3555 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3556 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3557 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3558 if (h != NULL
3559 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3560 break;
3561 /* Fall through. */
3562 case R_TILEGX_64:
3563 case R_TILEGX_32:
3564 case R_TILEGX_16:
3565 case R_TILEGX_8:
3566 case R_TILEGX_HW0:
3567 case R_TILEGX_HW1:
3568 case R_TILEGX_HW2:
3569 case R_TILEGX_HW3:
3570 case R_TILEGX_HW0_LAST:
3571 case R_TILEGX_HW1_LAST:
3572 case R_TILEGX_HW2_LAST:
3573 case R_TILEGX_COPY:
3574 case R_TILEGX_GLOB_DAT:
3575 case R_TILEGX_JMP_SLOT:
3576 case R_TILEGX_RELATIVE:
3577 case R_TILEGX_BROFF_X1:
3578 case R_TILEGX_JUMPOFF_X1:
3579 case R_TILEGX_IMM8_X0:
3580 case R_TILEGX_IMM8_Y0:
3581 case R_TILEGX_IMM8_X1:
3582 case R_TILEGX_IMM8_Y1:
3583 case R_TILEGX_DEST_IMM8_X1:
3584 case R_TILEGX_MT_IMM14_X1:
3585 case R_TILEGX_MF_IMM14_X1:
3586 case R_TILEGX_MMSTART_X0:
3587 case R_TILEGX_MMEND_X0:
3588 case R_TILEGX_SHAMT_X0:
3589 case R_TILEGX_SHAMT_X1:
3590 case R_TILEGX_SHAMT_Y0:
3591 case R_TILEGX_SHAMT_Y1:
3592 case R_TILEGX_IMM16_X0_HW0:
3593 case R_TILEGX_IMM16_X1_HW0:
3594 case R_TILEGX_IMM16_X0_HW1:
3595 case R_TILEGX_IMM16_X1_HW1:
3596 case R_TILEGX_IMM16_X0_HW2:
3597 case R_TILEGX_IMM16_X1_HW2:
3598 case R_TILEGX_IMM16_X0_HW3:
3599 case R_TILEGX_IMM16_X1_HW3:
3600 case R_TILEGX_IMM16_X0_HW0_LAST:
3601 case R_TILEGX_IMM16_X1_HW0_LAST:
3602 case R_TILEGX_IMM16_X0_HW1_LAST:
3603 case R_TILEGX_IMM16_X1_HW1_LAST:
3604 case R_TILEGX_IMM16_X0_HW2_LAST:
3605 case R_TILEGX_IMM16_X1_HW2_LAST:
3606 if ((input_section->flags & SEC_ALLOC) == 0)
3607 break;
3608
3609 if ((info->shared
3610 && (h == NULL
3611 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3612 || h->root.type != bfd_link_hash_undefweak)
3613 && (! howto->pc_relative
3614 || !SYMBOL_CALLS_LOCAL (info, h)))
3615 || (!info->shared
3616 && h != NULL
3617 && h->dynindx != -1
3618 && !h->non_got_ref
3619 && ((h->def_dynamic
3620 && !h->def_regular)
3621 || h->root.type == bfd_link_hash_undefweak
3622 || h->root.type == bfd_link_hash_undefined)))
3623 {
3624 Elf_Internal_Rela outrel;
3625 bfd_boolean skip, relocate = FALSE;
3626
3627 /* When generating a shared object, these relocations
3628 are copied into the output file to be resolved at run
3629 time. */
3630
3631 BFD_ASSERT (sreloc != NULL);
3632
3633 skip = FALSE;
3634
3635 outrel.r_offset =
3636 _bfd_elf_section_offset (output_bfd, info, input_section,
3637 rel->r_offset);
3638 if (outrel.r_offset == (bfd_vma) -1)
3639 skip = TRUE;
3640 else if (outrel.r_offset == (bfd_vma) -2)
3641 skip = TRUE, relocate = TRUE;
3642 outrel.r_offset += (input_section->output_section->vma
3643 + input_section->output_offset);
3644
3645 switch (r_type)
3646 {
3647 case R_TILEGX_64_PCREL:
3648 case R_TILEGX_32_PCREL:
3649 case R_TILEGX_16_PCREL:
3650 case R_TILEGX_8_PCREL:
3651 /* If the symbol is not dynamic, we should not keep
3652 a dynamic relocation. But an .rela.* slot has been
3653 allocated for it, output R_TILEGX_NONE.
3654 FIXME: Add code tracking needed dynamic relocs as
3655 e.g. i386 has. */
3656 if (h->dynindx == -1)
3657 skip = TRUE, relocate = TRUE;
3658 break;
3659 }
3660
3661 if (skip)
3662 memset (&outrel, 0, sizeof outrel);
3663 /* h->dynindx may be -1 if the symbol was marked to
3664 become local. */
3665 else if (h != NULL &&
3666 h->dynindx != -1
3667 && (! is_plt
3668 || !info->shared
3669 || !SYMBOLIC_BIND (info, h)
3670 || !h->def_regular))
3671 {
3672 BFD_ASSERT (h->dynindx != -1);
3673 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3674 outrel.r_addend = rel->r_addend;
3675 }
3676 else
3677 {
3678 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3679 {
3680 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3681 R_TILEGX_RELATIVE);
3682 outrel.r_addend = relocation + rel->r_addend;
3683 }
3684 else
3685 {
3686 long indx;
3687
3688 outrel.r_addend = relocation + rel->r_addend;
3689
3690 if (is_plt)
3691 sec = htab->elf.splt;
3692
3693 if (bfd_is_abs_section (sec))
3694 indx = 0;
3695 else if (sec == NULL || sec->owner == NULL)
3696 {
3697 bfd_set_error (bfd_error_bad_value);
3698 return FALSE;
3699 }
3700 else
3701 {
3702 asection *osec;
3703
3704 /* We are turning this relocation into one
3705 against a section symbol. It would be
3706 proper to subtract the symbol's value,
3707 osec->vma, from the emitted reloc addend,
3708 but ld.so expects buggy relocs. */
3709 osec = sec->output_section;
3710 indx = elf_section_data (osec)->dynindx;
3711
3712 if (indx == 0)
3713 {
3714 osec = htab->elf.text_index_section;
3715 indx = elf_section_data (osec)->dynindx;
3716 }
3717
3718 /* FIXME: we really should be able to link non-pic
3719 shared libraries. */
3720 if (indx == 0)
3721 {
3722 BFD_FAIL ();
3723 (*_bfd_error_handler)
3724 (_("%B: probably compiled without -fPIC?"),
3725 input_bfd);
3726 bfd_set_error (bfd_error_bad_value);
3727 return FALSE;
3728 }
3729 }
3730
3731 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3732 r_type);
3733 }
3734 }
3735
3736 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3737
3738 /* This reloc will be computed at runtime, so there's no
3739 need to do anything now. */
3740 if (! relocate)
3741 continue;
3742 }
3743 break;
3744
6f7be959
WL		 3745 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3746 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3747 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3748 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3749 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3750 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3751 if (info->shared)
3752 {
3753 Elf_Internal_Rela outrel;
3754 bfd_boolean skip;
3755
3756 BFD_ASSERT (sreloc != NULL);
3757 skip = FALSE;
3758 outrel.r_offset =
3759 _bfd_elf_section_offset (output_bfd, info, input_section,
3760 rel->r_offset);
3761 if (outrel.r_offset == (bfd_vma) -1)
3762 skip = TRUE;
3763 else if (outrel.r_offset == (bfd_vma) -2)
3764 skip = TRUE;
3765 outrel.r_offset += (input_section->output_section->vma
3766 + input_section->output_offset);
3767 if (skip)
3768 memset (&outrel, 0, sizeof outrel);
3769 else
3770 {
3771 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3772 outrel.r_addend = relocation - dtpoff_base (info)
3773 + rel->r_addend;
3774 }
3775
3776 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3777 continue;
3778 }
3779 relocation = tpoff (info, relocation);
3780 break;
3781
aa137e4d
NC		 3782 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3783 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3784 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3785 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3786 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3787 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3788 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3789 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3790 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3791 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3792 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3793 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
6f7be959
WL		 3794 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3795 input_section->sec_flg0);
3796 tls_type = GOT_UNKNOWN;
aa137e4d 3797 if (h == NULL && local_got_offsets)
6f7be959
WL		 3798 tls_type =
3799 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
aa137e4d 3800 else if (h != NULL)
6f7be959
WL		 3801 {
3802 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3803 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3804 r_type = (!input_section->sec_flg0
3805 ? tilegx_tls_translate_to_le (r_type)
3806 : tilegx_tls_translate_to_ie (r_type));
3807 }
aa137e4d
NC		 3808
3809 if (tls_type == GOT_TLS_IE)
6f7be959
WL		 3810 r_type = tilegx_tls_translate_to_ie (r_type);
3811
3812 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3813 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3814 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3815 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3816 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3817 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3818 {
3819 relocation = tpoff (info, relocation);
3820 break;
3821 }
aa137e4d
NC		 3822
3823 if (h != NULL)
3824 {
3825 off = h->got.offset;
3826 h->got.offset |= 1;
3827 }
3828 else
3829 {
3830 BFD_ASSERT (local_got_offsets != NULL);
3831 off = local_got_offsets[r_symndx];
3832 local_got_offsets[r_symndx] |= 1;
3833 }
3834
3835 if (htab->elf.sgot == NULL)
3836 abort ();
3837
3838 if ((off & 1) != 0)
3839 off &= ~1;
3840 else
3841 {
3842 Elf_Internal_Rela outrel;
3843 int indx = 0;
3844 bfd_boolean need_relocs = FALSE;
3845
3846 if (htab->elf.srelgot == NULL)
3847 abort ();
3848
3849 if (h != NULL)
3850 {
3851 bfd_boolean dyn;
3852 dyn = htab->elf.dynamic_sections_created;
3853
3854 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3855 && (!info->shared
3856 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3857 {
3858 indx = h->dynindx;
3859 }
3860 }
3861
3862 /* The GOT entries have not been initialized yet. Do it
3863 now, and emit any relocations. */
3864 if ((info->shared || indx != 0)
3865 && (h == NULL
3866 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3867 || h->root.type != bfd_link_hash_undefweak))
3868 need_relocs = TRUE;
3869
3870 switch (r_type)
3871 {
3872 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3873 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
aa137e4d
NC		 3874 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3875 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3876 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3877 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
aa137e4d
NC		 3878 if (need_relocs) {
3879 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3880 htab->elf.sgot->contents + off);
3881 outrel.r_offset = (htab->elf.sgot->output_section->vma
3882 + htab->elf.sgot->output_offset + off);
3883 outrel.r_addend = 0;
3884 if (indx == 0)
3885 outrel.r_addend = relocation - dtpoff_base (info);
3886 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3887 TILEGX_ELF_TPOFF_RELOC (htab));
3888 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3889 } else {
3890 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3891 tpoff (info, relocation),
3892 htab->elf.sgot->contents + off);
3893 }
3894 break;
3895
3896 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3897 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
aa137e4d
NC		 3898 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3899 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3900 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3901 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
aa137e4d
NC		 3902 if (need_relocs) {
3903 outrel.r_offset = (htab->elf.sgot->output_section->vma
3904 + htab->elf.sgot->output_offset + off);
3905 outrel.r_addend = 0;
3906 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3907 TILEGX_ELF_DTPMOD_RELOC (htab));
3908 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3909 htab->elf.sgot->contents + off);
3910 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3911 if (indx == 0)
3912 {
3913 BFD_ASSERT (! unresolved_reloc);
3914 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3915 relocation - dtpoff_base (info),
3916 (htab->elf.sgot->contents + off +
3917 TILEGX_ELF_WORD_BYTES (htab)));
3918 }
3919 else
3920 {
3921 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3922 (htab->elf.sgot->contents + off +
3923 TILEGX_ELF_WORD_BYTES (htab)));
3924 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3925 TILEGX_ELF_DTPOFF_RELOC (htab));
3926 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3927 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3928 }
3929 }
3930
3931 else {
3932 /* If we are not emitting relocations for a
3933 general dynamic reference, then we must be in a
3934 static link or an executable link with the
3935 symbol binding locally. Mark it as belonging
3936 to module 1, the executable. */
3937 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3938 htab->elf.sgot->contents + off );
3939 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3940 relocation - dtpoff_base (info),
3941 htab->elf.sgot->contents + off +
3942 TILEGX_ELF_WORD_BYTES (htab));
3943 }
3944 break;
3945 }
3946 }
3947
3948 if (off >= (bfd_vma) -2)
3949 abort ();
3950
535127d2 3951 relocation = off - got_base;
aa137e4d
NC		 3952 unresolved_reloc = FALSE;
3953 howto = tilegx_elf_howto_table + r_type;
3954 break;
3955
3956 default:
3957 break;
3958 }
3959
3960 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3961 because such sections are not SEC_ALLOC and thus ld.so will
3962 not process them. */
3963 if (unresolved_reloc
3964 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3965 && h->def_dynamic)
3966 && _bfd_elf_section_offset (output_bfd, info, input_section,
3967 rel->r_offset) != (bfd_vma) -1)
aa137e4d
NC		 3968 (*_bfd_error_handler)
3969 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3970 input_bfd,
3971 input_section,
3972 (long) rel->r_offset,
3973 howto->name,
3974 h->root.root.string);
3975
3976 r = bfd_reloc_continue;
3977
3978 /* Get the operand creation function, if any. */
3979 create_func = reloc_to_create_func[r_type];
3980 if (create_func == NULL)
3981 {
3982 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3983 contents, rel->r_offset,
3984 relocation, rel->r_addend);
3985 }
3986 else
3987 {
3988 if (howto->pc_relative)
3989 {
3990 relocation -=
3991 input_section->output_section->vma + input_section->output_offset;
3992 if (howto->pcrel_offset)
3993 relocation -= rel->r_offset;
3994 }
3995
3996 bfd_byte *data;
3997
3998 /* Add the relocation addend if any to the final target value */
3999 relocation += rel->r_addend;
4000
4001 /* Do basic range checking */
4002 r = bfd_check_overflow (howto->complain_on_overflow,
4003 howto->bitsize,
4004 howto->rightshift,
4005 TILEGX_ELF_WORD_BYTES (htab) * 8,
4006 relocation);
4007
4008 /*
4009 * Write the relocated value out into the raw section data.
4010 * Don't put a relocation out in the .rela section.
4011 */
4012 tilegx_bundle_bits mask = create_func(-1);
4013 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
4014
4015 /* Only touch bytes while the mask is not 0, so we
4016 don't write to out of bounds memory if this is actually
4017 a 16-bit switch instruction. */
4018 for (data = contents + rel->r_offset; mask != 0; data++)
4019 {
4020 bfd_byte byte_mask = (bfd_byte)mask;
4021 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
4022 mask >>= 8;
4023 value >>= 8;
4024 }
4025 }
4026
4027 if (r != bfd_reloc_ok)
4028 {
4029 const char *msg = NULL;
4030
4031 switch (r)
4032 {
4033 case bfd_reloc_overflow:
4034 r = info->callbacks->reloc_overflow
4035 (info, (h ? &h->root : NULL), name, howto->name,
4036 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4037 break;
4038
4039 case bfd_reloc_undefined:
4040 r = info->callbacks->undefined_symbol
4041 (info, name, input_bfd, input_section, rel->r_offset,
4042 TRUE);
4043 break;
4044
4045 case bfd_reloc_outofrange:
4046 msg = _("internal error: out of range error");
4047 break;
4048
4049 case bfd_reloc_notsupported:
4050 msg = _("internal error: unsupported relocation error");
4051 break;
4052
4053 case bfd_reloc_dangerous:
4054 msg = _("internal error: dangerous relocation");
4055 break;
4056
4057 default:
4058 msg = _("internal error: unknown error");
4059 break;
4060 }
4061
4062 if (msg)
4063 r = info->callbacks->warning
4064 (info, msg, name, input_bfd, input_section, rel->r_offset);
4065
4066 if (! r)
4067 return FALSE;
4068 }
4069 }
4070
4071 return TRUE;
4072}
4073
4074/* Finish up dynamic symbol handling. We set the contents of various
4075 dynamic sections here. */
4076
4077bfd_boolean
4078tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
4079 struct bfd_link_info *info,
4080 struct elf_link_hash_entry *h,
4081 Elf_Internal_Sym *sym)
4082{
4083 struct tilegx_elf_link_hash_table *htab;
4084
4085 htab = tilegx_elf_hash_table (info);
4086 BFD_ASSERT (htab != NULL);
4087
4088 if (h->plt.offset != (bfd_vma) -1)
4089 {
4090 asection *splt;
4091 asection *srela;
4092 asection *sgotplt;
4093 Elf_Internal_Rela rela;
4094 bfd_byte *loc;
4095 bfd_vma r_offset;
4096 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
4097
4098
4099 int rela_index;
4100
4101 /* This symbol has an entry in the PLT. Set it up. */
4102
4103 BFD_ASSERT (h->dynindx != -1);
4104
4105 splt = htab->elf.splt;
4106 srela = htab->elf.srelplt;
4107 sgotplt = htab->elf.sgotplt;
4108
4109 if (splt == NULL || srela == NULL)
4110 abort ();
4111
4112 /* Fill in the entry in the procedure linkage table. */
4113 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
4114 h->plt.offset, &r_offset);
4115
4116 /* Fill in the entry in the global offset table, which initially points
4117 to the beginning of the plt. */
4118 TILEGX_ELF_PUT_WORD (htab, output_bfd,
4119 splt->output_section->vma + splt->output_offset,
4120 sgotplt->contents + r_offset);
4121
4122 /* Fill in the entry in the .rela.plt section. */
4123 rela.r_offset = (sgotplt->output_section->vma
4124 + sgotplt->output_offset
4125 + r_offset);
4126 rela.r_addend = 0;
4127 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
4128
4129 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
4130 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4131
4132 if (!h->def_regular)
4133 {
4134 /* Mark the symbol as undefined, rather than as defined in
4135 the .plt section. Leave the value alone. */
4136 sym->st_shndx = SHN_UNDEF;
4137 /* If the symbol is weak, we do need to clear the value.
4138 Otherwise, the PLT entry would provide a definition for
4139 the symbol even if the symbol wasn't defined anywhere,
4140 and so the symbol would never be NULL. */
4141 if (!h->ref_regular_nonweak)
4142 sym->st_value = 0;
4143 }
4144 }
4145
4146 if (h->got.offset != (bfd_vma) -1
4147 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4148 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4149 {
4150 asection *sgot;
4151 asection *srela;
4152 Elf_Internal_Rela rela;
4153
4154 /* This symbol has an entry in the GOT. Set it up. */
4155
4156 sgot = htab->elf.sgot;
4157 srela = htab->elf.srelgot;
4158 BFD_ASSERT (sgot != NULL && srela != NULL);
4159
4160 rela.r_offset = (sgot->output_section->vma
4161 + sgot->output_offset
4162 + (h->got.offset &~ (bfd_vma) 1));
4163
4164 /* If this is a -Bsymbolic link, and the symbol is defined
4165 locally, we just want to emit a RELATIVE reloc. Likewise if
4166 the symbol was forced to be local because of a version file.
4167 The entry in the global offset table will already have been
4168 initialized in the relocate_section function. */
4169 if (info->shared
4170 && (info->symbolic || h->dynindx == -1)
4171 && h->def_regular)
4172 {
4173 asection *sec = h->root.u.def.section;
4174 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4175 rela.r_addend = (h->root.u.def.value
4176 + sec->output_section->vma
4177 + sec->output_offset);
4178 }
4179 else
4180 {
4181 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4182 rela.r_addend = 0;
4183 }
4184
4185 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4186 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4187 tilegx_elf_append_rela (output_bfd, srela, &rela);
4188 }
4189
4190 if (h->needs_copy)
4191 {
4192 asection *s;
4193 Elf_Internal_Rela rela;
4194
4195 /* This symbols needs a copy reloc. Set it up. */
4196 BFD_ASSERT (h->dynindx != -1);
4197
3d4d4302 4198 s = htab->srelbss;
aa137e4d
NC		 4199 BFD_ASSERT (s != NULL);
4200
4201 rela.r_offset = (h->root.u.def.value
4202 + h->root.u.def.section->output_section->vma
4203 + h->root.u.def.section->output_offset);
4204 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4205 rela.r_addend = 0;
4206 tilegx_elf_append_rela (output_bfd, s, &rela);
4207 }
4208
4209 /* Mark some specially defined symbols as absolute. */
9637f6ef 4210 if (h == htab->elf.hdynamic
aa137e4d
NC		 4211 || (h == htab->elf.hgot || h == htab->elf.hplt))
4212 sym->st_shndx = SHN_ABS;
4213
4214 return TRUE;
4215}
4216
4217/* Finish up the dynamic sections. */
4218
4219static bfd_boolean
4220tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4221 bfd *dynobj, asection *sdyn,
4222 asection *splt ATTRIBUTE_UNUSED)
4223{
4224 struct tilegx_elf_link_hash_table *htab;
4225 const struct elf_backend_data *bed;
4226 bfd_byte *dyncon, *dynconend;
4227 size_t dynsize;
aa137e4d
NC		 4228
4229 htab = tilegx_elf_hash_table (info);
4230 BFD_ASSERT (htab != NULL);
4231 bed = get_elf_backend_data (output_bfd);
4232 dynsize = bed->s->sizeof_dyn;
4233 dynconend = sdyn->contents + sdyn->size;
aa137e4d
NC		 4234
4235 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4236 {
4237 Elf_Internal_Dyn dyn;
4238 asection *s;
4239
4240 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4241
4242 switch (dyn.d_tag)
4243 {
4244 case DT_PLTGOT:
4245 s = htab->elf.sgotplt;
4246 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4247 break;
4248 case DT_JMPREL:
4249 s = htab->elf.srelplt;
4250 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4251 break;
4252 case DT_PLTRELSZ:
4253 s = htab->elf.srelplt;
4254 dyn.d_un.d_val = s->size;
4255 break;
4256 default:
4257 continue;
4258 }
4259
4260 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4261 }
4262 return TRUE;
4263}
4264
4265bfd_boolean
4266tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4267 struct bfd_link_info *info)
4268{
4269 bfd *dynobj;
4270 asection *sdyn;
4271 struct tilegx_elf_link_hash_table *htab;
663b5850 4272 size_t pad_size;
aa137e4d
NC		 4273
4274 htab = tilegx_elf_hash_table (info);
4275 BFD_ASSERT (htab != NULL);
4276 dynobj = htab->elf.dynobj;
4277
3d4d4302 4278 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
aa137e4d
NC		 4279
4280 if (elf_hash_table (info)->dynamic_sections_created)
4281 {
4282 asection *splt;
4283 bfd_boolean ret;
4284
3d4d4302 4285 splt = htab->elf.splt;
aa137e4d
NC		 4286 BFD_ASSERT (splt != NULL && sdyn != NULL);
4287
4288 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4289
4290 if (ret != TRUE)
4291 return ret;
4292
4293 /* Fill in the head and tail entries in the procedure linkage table. */
4294 if (splt->size > 0)
4295 {
4296 memcpy (splt->contents,
4297 ABI_64_P (output_bfd) ?
4298 tilegx64_plt0_entry : tilegx32_plt0_entry,
4299 PLT_HEADER_SIZE);
4300
663b5850
WL		 4301 memcpy (splt->contents + splt->size
4302 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
aa137e4d
NC		 4303 ABI_64_P (output_bfd) ?
4304 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4305 PLT_TAIL_SIZE);
663b5850
WL		 4306 /* Add padding so that the plt section is a multiple of its
4307 entry size. */
4308 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4309 memset (splt->contents + splt->size - pad_size, 0, pad_size);
aa137e4d
NC		 4310 }
4311
4312 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4313 = PLT_ENTRY_SIZE;
4314 }
4315
4316 if (htab->elf.sgotplt)
4317 {
4318 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4319 {
4320 (*_bfd_error_handler)
4321 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4322 return FALSE;
4323 }
4324
4325 if (htab->elf.sgotplt->size > 0)
4326 {
4327 /* Write the first two entries in .got.plt, needed for the dynamic
4328 linker. */
4329 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4330 htab->elf.sgotplt->contents);
4331 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4332 htab->elf.sgotplt->contents
4333 + GOT_ENTRY_SIZE (htab));
4334 }
4335
4336 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4337 GOT_ENTRY_SIZE (htab);
4338 }
4339
4340 if (htab->elf.sgot)
4341 {
4342 if (htab->elf.sgot->size > 0)
4343 {
4344 /* Set the first entry in the global offset table to the address of
4345 the dynamic section. */
4346 bfd_vma val = (sdyn ?
4347 sdyn->output_section->vma + sdyn->output_offset :
4348 0);
4349 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4350 htab->elf.sgot->contents);
4351 }
4352
4353 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4354 GOT_ENTRY_SIZE (htab);
4355 }
4356
4357 return TRUE;
4358}
4359
4360\f
4361
4362/* Return address for Ith PLT stub in section PLT, for relocation REL
4363 or (bfd_vma) -1 if it should not be included. */
4364
4365bfd_vma
4366tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4367 const arelent *rel ATTRIBUTE_UNUSED)
4368{
4369 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4370}
4371
4372enum elf_reloc_type_class
4373tilegx_reloc_type_class (const Elf_Internal_Rela *rela)
4374{
4375 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4376 {
4377 case R_TILEGX_RELATIVE:
4378 return reloc_class_relative;
4379 case R_TILEGX_JMP_SLOT:
4380 return reloc_class_plt;
4381 case R_TILEGX_COPY:
4382 return reloc_class_copy;
4383 default:
4384 return reloc_class_normal;
4385 }
4386}
4387
4388int
4389tilegx_additional_program_headers (bfd *abfd,
4390 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4391{
4392 /* Each .intrpt section specified by the user adds another PT_LOAD
4393 header since the sections are discontiguous. */
4394 static const char intrpt_sections[4][9] =
4395 {
4396 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4397 };
4398 int count = 0;
4399 int i;
4400
4401 for (i = 0; i < 4; i++)
4402 {
4403 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4404 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4405 ++count;
4406 }
4407
4408 /* Add four "padding" headers in to leave room in case a custom linker
4409 script does something fancy. Otherwise ld complains that it ran
4410 out of program headers and refuses to link. */
4411 count += 4;
4412
4413 return count;
4414}
4415
4416
4417bfd_boolean
4418_bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4419{
4420 const char *targ1 = bfd_get_target (ibfd);
4421 const char *targ2 = bfd_get_target (obfd);
4422
4423 if (strcmp (targ1, targ2) != 0)
4424 {
4425 (*_bfd_error_handler)
4426 (_("%B: Cannot link together %s and %s objects."),
4427 ibfd, targ1, targ2);
4428 bfd_set_error (bfd_error_bad_value);
4429 return FALSE;
4430 }
4431
4432 return TRUE;
4433}
GDB Binutils - Deliverables
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