projects / deliverable / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Automatic date update in version.in
[deliverable/binutils-gdb.git] / bfd / elfxx-tilegx.c
1 /* TILE-Gx-specific support for ELF.
2 Copyright (C) 2011-2019 Free Software Foundation, Inc.
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
21 #include "sysdep.h"
22 #include "bfd.h"
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
70 static reloc_howto_type tilegx_elf_howto_table [] =
71 {
72 /* This reloc does nothing. */
73 HOWTO (R_TILEGX_NONE, /* type */
74 0, /* rightshift */
75 3, /* size (0 = byte, 1 = short, 2 = long) */
76 0, /* bitsize */
77 FALSE, /* pc_relative */
78 0, /* bitpos */
79 complain_overflow_dont, /* 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),
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),
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),
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),
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),
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),
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),
523 EMPTY_HOWTO (90),
524 EMPTY_HOWTO (91),
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),
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),
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),
550 EMPTY_HOWTO (104),
551 EMPTY_HOWTO (105),
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",
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),
596 };
597
598 static 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
634 typedef 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
641 static 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)
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)
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)
727 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL)
728 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL)
729 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
730 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
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)
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)
741 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
742 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
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)
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)
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
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
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 /* TILEGX ELF linker hash entry. */
783
784 struct tilegx_elf_link_hash_entry
785 {
786 struct elf_link_hash_entry elf;
787
788 /* Track dynamic relocs copied for this symbol. */
789 struct elf_dyn_relocs *dyn_relocs;
790
791 #define GOT_UNKNOWN 0
792 #define GOT_NORMAL 1
793 #define GOT_TLS_GD 2
794 #define GOT_TLS_IE 4
795 unsigned char tls_type;
796 };
797
798 #define tilegx_elf_hash_entry(ent) \
799 ((struct tilegx_elf_link_hash_entry *)(ent))
800
801 struct _bfd_tilegx_elf_obj_tdata
802 {
803 struct elf_obj_tdata root;
804
805 /* tls_type for each local got entry. */
806 char *local_got_tls_type;
807 };
808
809 #define _bfd_tilegx_elf_tdata(abfd) \
810 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
811
812 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
813 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
814
815 #define is_tilegx_elf(bfd) \
816 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
817 && elf_tdata (bfd) != NULL \
818 && elf_object_id (bfd) == TILEGX_ELF_DATA)
819
820 #include "elf/common.h"
821 #include "elf/internal.h"
822
823 struct tilegx_elf_link_hash_table
824 {
825 struct elf_link_hash_table elf;
826
827 int bytes_per_word;
828 int word_align_power;
829 int bytes_per_rela;
830 int dtpmod_reloc;
831 int dtpoff_reloc;
832 int tpoff_reloc;
833 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
834 bfd_vma (*r_symndx) (bfd_vma);
835 void (*put_word) (bfd *, bfd_vma, void *);
836 const char *dynamic_interpreter;
837
838 /* Whether LE transition has been disabled for some of the
839 sections. */
840 bfd_boolean disable_le_transition;
841
842 /* Small local sym to section mapping cache. */
843 struct sym_cache sym_cache;
844 };
845
846
847 /* Get the Tile ELF linker hash table from a link_info structure. */
848 #define tilegx_elf_hash_table(p) \
849 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
850 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
851
852 #ifdef BFD64
853 static bfd_vma
854 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
855 bfd_vma rel_index,
856 bfd_vma type)
857 {
858 return ELF64_R_INFO (rel_index, type);
859 }
860
861 static bfd_vma
862 tilegx_elf_r_symndx_64 (bfd_vma r_info)
863 {
864 return ELF64_R_SYM (r_info);
865 }
866
867 static void
868 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
869 {
870 bfd_put_64 (abfd, val, ptr);
871 }
872 #endif /* BFD64 */
873
874 static bfd_vma
875 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
876 bfd_vma rel_index,
877 bfd_vma type)
878 {
879 return ELF32_R_INFO (rel_index, type);
880 }
881
882 static bfd_vma
883 tilegx_elf_r_symndx_32 (bfd_vma r_info)
884 {
885 return ELF32_R_SYM (r_info);
886 }
887
888 static void
889 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
890 {
891 bfd_put_32 (abfd, val, ptr);
892 }
893
894 reloc_howto_type *
895 tilegx_reloc_type_lookup (bfd * abfd,
896 bfd_reloc_code_real_type code)
897 {
898 unsigned int i;
899
900 for (i = ARRAY_SIZE (tilegx_reloc_map); i--;)
901 {
902 const reloc_map * entry;
903
904 entry = tilegx_reloc_map + i;
905
906 if (entry->bfd_reloc_val == code)
907 return entry->table + (entry->tilegx_reloc_val
908 - entry->table[0].type);
909 }
910
911 /* xgettext:c-format */
912 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
913 abfd, (int) code);
914 bfd_set_error (bfd_error_bad_value);
915 return NULL;
916 }
917
918 reloc_howto_type *
919 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
920 const char *r_name)
921 {
922 unsigned int i;
923
924 for (i = 0;
925 i < (sizeof (tilegx_elf_howto_table)
926 / sizeof (tilegx_elf_howto_table[0]));
927 i++)
928 if (tilegx_elf_howto_table[i].name != NULL
929 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
930 return &tilegx_elf_howto_table[i];
931
932 return NULL;
933 }
934
935 bfd_boolean
936 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
937 arelent *cache_ptr,
938 Elf_Internal_Rela *dst)
939 {
940 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
941
942 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
943 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
944 else if (r_type - R_TILEGX_GNU_VTINHERIT
945 <= ((unsigned int) R_TILEGX_GNU_VTENTRY
946 - (unsigned int) R_TILEGX_GNU_VTINHERIT))
947 cache_ptr->howto
948 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
949 else
950 {
951 /* xgettext:c-format */
952 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
953 abfd, r_type);
954 bfd_set_error (bfd_error_bad_value);
955 return FALSE;
956 }
957 return TRUE;
958 }
959
960 typedef tilegx_bundle_bits (*tilegx_create_func)(int);
961
962 static const tilegx_create_func reloc_to_create_func[] =
963 {
964 /* The first twenty relocation types don't correspond to operands */
965 NULL,
966 NULL,
967 NULL,
968 NULL,
969 NULL,
970 NULL,
971 NULL,
972 NULL,
973 NULL,
974 NULL,
975 NULL,
976 NULL,
977 NULL,
978 NULL,
979 NULL,
980 NULL,
981 NULL,
982 NULL,
983 NULL,
984 NULL,
985
986 /* The remaining relocations are used for immediate operands */
987 create_BrOff_X1,
988 create_JumpOff_X1,
989 create_JumpOff_X1,
990 create_Imm8_X0,
991 create_Imm8_Y0,
992 create_Imm8_X1,
993 create_Imm8_Y1,
994 create_Dest_Imm8_X1,
995 create_MT_Imm14_X1,
996 create_MF_Imm14_X1,
997 create_BFStart_X0,
998 create_BFEnd_X0,
999 create_ShAmt_X0,
1000 create_ShAmt_X1,
1001 create_ShAmt_Y0,
1002 create_ShAmt_Y1,
1003 create_Imm16_X0,
1004 create_Imm16_X1,
1005 create_Imm16_X0,
1006 create_Imm16_X1,
1007 create_Imm16_X0,
1008 create_Imm16_X1,
1009 create_Imm16_X0,
1010 create_Imm16_X1,
1011 create_Imm16_X0,
1012 create_Imm16_X1,
1013 create_Imm16_X0,
1014 create_Imm16_X1,
1015 create_Imm16_X0,
1016 create_Imm16_X1,
1017 create_Imm16_X0,
1018 create_Imm16_X1,
1019 create_Imm16_X0,
1020 create_Imm16_X1,
1021 create_Imm16_X0,
1022 create_Imm16_X1,
1023 create_Imm16_X0,
1024 create_Imm16_X1,
1025 create_Imm16_X0,
1026 create_Imm16_X1,
1027 create_Imm16_X0,
1028 create_Imm16_X1,
1029 create_Imm16_X0,
1030 create_Imm16_X1,
1031 create_Imm16_X0,
1032 create_Imm16_X1,
1033 create_Imm16_X0,
1034 create_Imm16_X1,
1035 create_Imm16_X0,
1036 create_Imm16_X1,
1037 create_Imm16_X0,
1038 create_Imm16_X1,
1039 create_Imm16_X0,
1040 create_Imm16_X1,
1041 create_Imm16_X0,
1042 create_Imm16_X1,
1043 create_Imm16_X0,
1044 create_Imm16_X1,
1045 create_Imm16_X0,
1046 create_Imm16_X1,
1047 create_Imm16_X0,
1048 create_Imm16_X1,
1049 create_Imm16_X0,
1050 create_Imm16_X1,
1051 create_Imm16_X0,
1052 create_Imm16_X1,
1053 create_Imm16_X0,
1054 create_Imm16_X1,
1055 create_Imm16_X0,
1056 create_Imm16_X1,
1057 NULL,
1058 NULL,
1059 create_Imm16_X0,
1060 create_Imm16_X1,
1061 create_Imm16_X0,
1062 create_Imm16_X1,
1063 create_Imm16_X0,
1064 create_Imm16_X1,
1065 create_Imm16_X0,
1066 create_Imm16_X1,
1067 create_Imm16_X0,
1068 create_Imm16_X1,
1069 create_Imm16_X0,
1070 create_Imm16_X1,
1071 };
1072
1073 static void
1074 tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1075 {
1076 const struct elf_backend_data *bed;
1077 bfd_byte *loc;
1078
1079 bed = get_elf_backend_data (abfd);
1080 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1081 bed->s->swap_reloca_out (abfd, rel, loc);
1082 }
1083
1084 /* PLT/GOT stuff */
1085
1086 /* The procedure linkage table starts with the following header:
1087
1088 ld_add r28, r27, 8
1089 ld r27, r27
1090 {
1091 jr r27
1092 info 10 ## SP not offset, return PC in LR
1093 }
1094
1095 Subsequent entries are the following, jumping to the header at the end:
1096
1097 {
1098 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1099 lnk r26
1100 }
1101 1:
1102 {
1103 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1104 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1105 }
1106 {
1107 add r28, r26, r28
1108 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1109 }
1110 {
1111 add r27, r26, r27
1112 ld r28, r28
1113 info 10 ## SP not offset, return PC in LR
1114 }
1115 {
1116 shl16insli r29, zero, MY_PLT_INDEX
1117 jr r28
1118 }
1119
1120 This code sequence lets the code at at the start of the PLT determine
1121 which PLT entry was executed by examining 'r29'.
1122
1123 Note that MY_PLT_INDEX skips over the header entries, so the first
1124 actual jump table entry has index zero.
1125
1126 If the offset fits in 16 bits,
1127
1128 lnk r26
1129 1:
1130 {
1131 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1132 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1133 }
1134 {
1135 shl16insli r29, zero, MY_PLT_INDEX
1136 ld r28, r28
1137 }
1138 {
1139 add r27, r26, r27
1140 jr r28
1141 }
1142 info 10 ## SP not offset, return PC in LR
1143
1144 For the purpose of backtracing, the procedure linkage table ends with the
1145 following tail entry:
1146
1147 info 10 ## SP not offset, return PC in LR
1148
1149 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1150 the GOT being multiples of 4 instead of 8.
1151
1152 */
1153
1154 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1155 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1156 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1157
1158 #define PLT_HEADER_SIZE \
1159 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1160 #define PLT_ENTRY_SIZE \
1161 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1162 #define PLT_TAIL_SIZE \
1163 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1164
1165 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1166
1167 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1168
1169 static const bfd_byte
1170 tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1171 {
1172 0x00, 0x30, 0x48, 0x51,
1173 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1174 0x00, 0x30, 0xbc, 0x35,
1175 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1176 0xff, 0xaf, 0x30, 0x40,
1177 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1178 };
1179
1180 static const bfd_byte
1181 tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1182 {
1183 0xdc, 0x0f, 0x00, 0x10,
1184 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1185 0xdb, 0x0f, 0x00, 0x10,
1186 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1187 0x9c, 0xc6, 0x0d, 0xd0,
1188 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1189 0x9b, 0xb6, 0xc5, 0xad,
1190 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1191 0xdd, 0x0f, 0x00, 0x70,
1192 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1193 };
1194
1195 static const bfd_byte
1196 tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1197 {
1198 0x00, 0x30, 0x48, 0x51,
1199 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1200 0x9c, 0x06, 0x00, 0x90,
1201 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1202 0xdd, 0x0f, 0x00, 0x70,
1203 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1204 0x9b, 0xb6, 0x0d, 0x50,
1205 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1206 0x00, 0x30, 0x48, 0xd1,
1207 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1208 };
1209
1210 /* Reuse an existing info 10 bundle. */
1211 static const bfd_byte *const tilegx64_plt_tail_entry =
1212 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1213
1214 static const bfd_byte
1215 tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1216 {
1217 0x00, 0x30, 0x48, 0x51,
1218 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1219 0x00, 0x30, 0xbc, 0x35,
1220 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1221 0xff, 0xaf, 0x30, 0x40,
1222 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1223 };
1224
1225 static const bfd_byte
1226 tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1227 {
1228 0xdc, 0x0f, 0x00, 0x10,
1229 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1230 0xdb, 0x0f, 0x00, 0x10,
1231 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1232 0x9c, 0xc6, 0x0d, 0xd0,
1233 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1234 0x9b, 0xb6, 0xc5, 0xad,
1235 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1236 0xdd, 0x0f, 0x00, 0x70,
1237 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1238 };
1239
1240 static const bfd_byte
1241 tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1242 {
1243 0x00, 0x30, 0x48, 0x51,
1244 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1245 0x9c, 0x06, 0x00, 0x90,
1246 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1247 0xdd, 0x0f, 0x00, 0x70,
1248 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1249 0x9b, 0xb6, 0x0d, 0x50,
1250 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1251 0x00, 0x30, 0x48, 0xd1,
1252 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1253 };
1254
1255 /* Reuse an existing info 10 bundle. */
1256 static const bfd_byte *const tilegx32_plt_tail_entry =
1257 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1258
1259 static int
1260 tilegx_plt_entry_build (bfd *output_bfd,
1261 struct tilegx_elf_link_hash_table *htab,
1262 asection *splt, asection *sgotplt,
1263 bfd_vma offset, bfd_vma *r_offset)
1264 {
1265 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1266 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1267 + GOTPLT_HEADER_SIZE (htab));
1268 tilegx_bundle_bits *pc;
1269
1270 /* Compute the distance from the got entry to the lnk. */
1271 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1272 + sgotplt->output_offset
1273 + got_offset
1274 - splt->output_section->vma
1275 - splt->output_offset
1276 - offset
1277 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1278
1279 /* Compute the distance to GOTPLT[0]. */
1280 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1281
1282 /* Check whether we can use the short plt entry with 16-bit offset. */
1283 bfd_boolean short_plt_entry =
1284 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1285
1286 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1287 (ABI_64_P (output_bfd) ?
1288 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1289 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1290
1291 /* Copy the plt entry template. */
1292 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1293
1294 /* Write the immediate offsets. */
1295 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1296
1297 if (short_plt_entry)
1298 {
1299 /* { lnk r28 } */
1300 pc++;
1301
1302 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1303 *pc++ |= create_Imm16_X0 (dist_got_entry)
1304 | create_Imm16_X1 (dist_got0);
1305
1306 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1307 *pc++ |= create_Imm16_X0 (plt_index);
1308 }
1309 else
1310 {
1311 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1312 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1313
1314 /* { moveli r27, &GOTPLT[0] ;
1315 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1316 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1317 | create_Imm16_X1 (dist_got_entry);
1318
1319 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1320 *pc++ |= create_Imm16_X1 (dist_got0);
1321
1322 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1323 pc++;
1324
1325 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1326 *pc++ |= create_Imm16_X0 (plt_index);
1327 }
1328
1329 /* Set the relocation offset. */
1330 *r_offset = got_offset;
1331
1332 return plt_index;
1333 }
1334
1335 /* Create an entry in an TILEGX ELF linker hash table. */
1336
1337 static struct bfd_hash_entry *
1338 link_hash_newfunc (struct bfd_hash_entry *entry,
1339 struct bfd_hash_table *table, const char *string)
1340 {
1341 /* Allocate the structure if it has not already been allocated by a
1342 subclass. */
1343 if (entry == NULL)
1344 {
1345 entry =
1346 bfd_hash_allocate (table,
1347 sizeof (struct tilegx_elf_link_hash_entry));
1348 if (entry == NULL)
1349 return entry;
1350 }
1351
1352 /* Call the allocation method of the superclass. */
1353 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1354 if (entry != NULL)
1355 {
1356 struct tilegx_elf_link_hash_entry *eh;
1357
1358 eh = (struct tilegx_elf_link_hash_entry *) entry;
1359 eh->dyn_relocs = NULL;
1360 eh->tls_type = GOT_UNKNOWN;
1361 }
1362
1363 return entry;
1364 }
1365
1366 /* Create a TILEGX ELF linker hash table. */
1367
1368 struct bfd_link_hash_table *
1369 tilegx_elf_link_hash_table_create (bfd *abfd)
1370 {
1371 struct tilegx_elf_link_hash_table *ret;
1372 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1373
1374 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1375 if (ret == NULL)
1376 return NULL;
1377
1378 #ifdef BFD64
1379 if (ABI_64_P (abfd))
1380 {
1381 ret->bytes_per_word = 8;
1382 ret->word_align_power = 3;
1383 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1384 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1385 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1386 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1387 ret->r_info = tilegx_elf_r_info_64;
1388 ret->r_symndx = tilegx_elf_r_symndx_64;
1389 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1390 ret->put_word = tilegx_put_word_64;
1391 }
1392 else
1393 #endif
1394 {
1395 ret->bytes_per_word = 4;
1396 ret->word_align_power = 2;
1397 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1398 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1399 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1400 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1401 ret->r_info = tilegx_elf_r_info_32;
1402 ret->r_symndx = tilegx_elf_r_symndx_32;
1403 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1404 ret->put_word = tilegx_put_word_32;
1405 }
1406
1407 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1408 sizeof (struct tilegx_elf_link_hash_entry),
1409 TILEGX_ELF_DATA))
1410 {
1411 free (ret);
1412 return NULL;
1413 }
1414
1415 return &ret->elf.root;
1416 }
1417
1418 /* Create the .got section. */
1419
1420 static bfd_boolean
1421 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1422 {
1423 flagword flags;
1424 asection *s, *s_got;
1425 struct elf_link_hash_entry *h;
1426 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1427 struct elf_link_hash_table *htab = elf_hash_table (info);
1428
1429 /* This function may be called more than once. */
1430 if (htab->sgot != NULL)
1431 return TRUE;
1432
1433 flags = bed->dynamic_sec_flags;
1434
1435 s = bfd_make_section_anyway_with_flags (abfd,
1436 (bed->rela_plts_and_copies_p
1437 ? ".rela.got" : ".rel.got"),
1438 (bed->dynamic_sec_flags
1439 | SEC_READONLY));
1440 if (s == NULL
1441 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1442 return FALSE;
1443 htab->srelgot = s;
1444
1445 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1446 if (s == NULL
1447 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1448 return FALSE;
1449 htab->sgot = s;
1450
1451 /* The first bit of the global offset table is the header. */
1452 s->size += bed->got_header_size;
1453
1454 if (bed->want_got_plt)
1455 {
1456 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
1457 if (s == NULL
1458 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1459 return FALSE;
1460 htab->sgotplt = s;
1461
1462 /* Reserve room for the header. */
1463 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1464 }
1465
1466 if (bed->want_got_sym)
1467 {
1468 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1469 section. We don't do this in the linker script because we don't want
1470 to define the symbol if we are not creating a global offset
1471 table. */
1472 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1473 "_GLOBAL_OFFSET_TABLE_");
1474 elf_hash_table (info)->hgot = h;
1475 if (h == NULL)
1476 return FALSE;
1477 }
1478
1479 return TRUE;
1480 }
1481
1482 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1483 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1484 hash table. */
1485
1486 bfd_boolean
1487 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1488 struct bfd_link_info *info)
1489 {
1490 if (!tilegx_elf_create_got_section (dynobj, info))
1491 return FALSE;
1492
1493 return _bfd_elf_create_dynamic_sections (dynobj, info);
1494 }
1495
1496 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1497
1498 void
1499 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1500 struct elf_link_hash_entry *dir,
1501 struct elf_link_hash_entry *ind)
1502 {
1503 struct tilegx_elf_link_hash_entry *edir, *eind;
1504
1505 edir = (struct tilegx_elf_link_hash_entry *) dir;
1506 eind = (struct tilegx_elf_link_hash_entry *) ind;
1507
1508 if (eind->dyn_relocs != NULL)
1509 {
1510 if (edir->dyn_relocs != NULL)
1511 {
1512 struct elf_dyn_relocs **pp;
1513 struct elf_dyn_relocs *p;
1514
1515 /* Add reloc counts against the indirect sym to the direct sym
1516 list. Merge any entries against the same section. */
1517 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1518 {
1519 struct elf_dyn_relocs *q;
1520
1521 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1522 if (q->sec == p->sec)
1523 {
1524 q->pc_count += p->pc_count;
1525 q->count += p->count;
1526 *pp = p->next;
1527 break;
1528 }
1529 if (q == NULL)
1530 pp = &p->next;
1531 }
1532 *pp = edir->dyn_relocs;
1533 }
1534
1535 edir->dyn_relocs = eind->dyn_relocs;
1536 eind->dyn_relocs = NULL;
1537 }
1538
1539 if (ind->root.type == bfd_link_hash_indirect
1540 && dir->got.refcount <= 0)
1541 {
1542 edir->tls_type = eind->tls_type;
1543 eind->tls_type = GOT_UNKNOWN;
1544 }
1545 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1546 }
1547
1548 static int
1549 tilegx_tls_translate_to_le (int r_type)
1550 {
1551 switch (r_type)
1552 {
1553 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1554 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1555 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1556
1557 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1558 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1559 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1560
1561 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1562 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1563 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1564
1565 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1566 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1567 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1568
1569 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1570 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1571 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1572
1573 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1574 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1575 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1576 }
1577 return r_type;
1578 }
1579
1580 static int
1581 tilegx_tls_translate_to_ie (int r_type)
1582 {
1583 switch (r_type)
1584 {
1585 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1586 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1587 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1588
1589 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1590 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1591 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1592
1593 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1594 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1595 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1596
1597 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1598 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1599 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1600
1601 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1602 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1603 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1604
1605 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1606 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1607 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1608 }
1609 return r_type;
1610 }
1611
1612 static int
1613 tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1614 int is_local, bfd_boolean disable_le_transition)
1615 {
1616 if (!bfd_link_executable (info))
1617 return r_type;
1618
1619 if (is_local && !disable_le_transition)
1620 return tilegx_tls_translate_to_le (r_type);
1621 else
1622 return tilegx_tls_translate_to_ie (r_type);
1623 }
1624
1625 /* Look through the relocs for a section during the first phase, and
1626 allocate space in the global offset table or procedure linkage
1627 table. */
1628
1629 bfd_boolean
1630 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1631 asection *sec, const Elf_Internal_Rela *relocs)
1632 {
1633 struct tilegx_elf_link_hash_table *htab;
1634 Elf_Internal_Shdr *symtab_hdr;
1635 struct elf_link_hash_entry **sym_hashes;
1636 const Elf_Internal_Rela *rel;
1637 const Elf_Internal_Rela *rel_end;
1638 asection *sreloc;
1639 int num_relocs;
1640 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
1641
1642 if (bfd_link_relocatable (info))
1643 return TRUE;
1644
1645 htab = tilegx_elf_hash_table (info);
1646 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1647 sym_hashes = elf_sym_hashes (abfd);
1648
1649 sreloc = NULL;
1650
1651 num_relocs = sec->reloc_count;
1652
1653 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1654
1655 if (htab->elf.dynobj == NULL)
1656 htab->elf.dynobj = abfd;
1657
1658 rel_end = relocs + num_relocs;
1659
1660 /* Check whether to do optimization to transform TLS GD/IE
1661 referehces to TLS LE. We disable it if we're linking with old
1662 TLS code sequences that do not support such optimization. Old
1663 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1664 no tls_add relocations. */
1665 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1666 {
1667 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1668 switch (r_type)
1669 {
1670 case R_TILEGX_TLS_GD_CALL:
1671 case R_TILEGX_TLS_IE_LOAD:
1672 has_tls_gd_or_ie = TRUE;
1673 break;
1674 case R_TILEGX_IMM8_X0_TLS_ADD:
1675 case R_TILEGX_IMM8_Y0_TLS_ADD:
1676 case R_TILEGX_IMM8_X1_TLS_ADD:
1677 case R_TILEGX_IMM8_Y1_TLS_ADD:
1678 has_tls_add = TRUE;
1679 break;
1680 }
1681 }
1682
1683 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1684 htab->disable_le_transition |= sec->sec_flg0;
1685
1686 for (rel = relocs; rel < rel_end; rel++)
1687 {
1688 unsigned int r_type;
1689 unsigned int r_symndx;
1690 struct elf_link_hash_entry *h;
1691 int tls_type;
1692
1693 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1694 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1695
1696 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1697 {
1698 /* xgettext:c-format */
1699 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1700 abfd, r_symndx);
1701 return FALSE;
1702 }
1703
1704 if (r_symndx < symtab_hdr->sh_info)
1705 h = NULL;
1706 else
1707 {
1708 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1709 while (h->root.type == bfd_link_hash_indirect
1710 || h->root.type == bfd_link_hash_warning)
1711 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1712 }
1713
1714 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1715 sec->sec_flg0);
1716 switch (r_type)
1717 {
1718 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1719 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1720 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1721 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1722 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1723 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1724 if (!bfd_link_executable (info))
1725 goto r_tilegx_plt32;
1726 break;
1727
1728 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1729 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1730 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1731 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1732 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1733 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1734 BFD_ASSERT (bfd_link_pic (info));
1735 tls_type = GOT_TLS_GD;
1736 goto have_got_reference;
1737
1738 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1739 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1740 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1741 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1742 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1743 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1744 tls_type = GOT_TLS_IE;
1745 if (!bfd_link_executable (info))
1746 info->flags |= DF_STATIC_TLS;
1747 goto have_got_reference;
1748
1749 case R_TILEGX_IMM16_X0_HW0_GOT:
1750 case R_TILEGX_IMM16_X1_HW0_GOT:
1751 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1752 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1753 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1754 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1755 tls_type = GOT_NORMAL;
1756 /* Fall Through */
1757
1758 have_got_reference:
1759 /* This symbol requires a global offset table entry. */
1760 {
1761 int old_tls_type;
1762
1763 if (h != NULL)
1764 {
1765 h->got.refcount += 1;
1766 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1767 }
1768 else
1769 {
1770 bfd_signed_vma *local_got_refcounts;
1771
1772 /* This is a global offset table entry for a local symbol. */
1773 local_got_refcounts = elf_local_got_refcounts (abfd);
1774 if (local_got_refcounts == NULL)
1775 {
1776 bfd_size_type size;
1777
1778 size = symtab_hdr->sh_info;
1779 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1780 local_got_refcounts = ((bfd_signed_vma *)
1781 bfd_zalloc (abfd, size));
1782 if (local_got_refcounts == NULL)
1783 return FALSE;
1784 elf_local_got_refcounts (abfd) = local_got_refcounts;
1785 _bfd_tilegx_elf_local_got_tls_type (abfd)
1786 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1787 }
1788 local_got_refcounts[r_symndx] += 1;
1789 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1790 }
1791
1792 /* If a TLS symbol is accessed using IE at least once,
1793 there is no point to use dynamic model for it. */
1794 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1795 && (old_tls_type != GOT_TLS_GD
1796 || tls_type != GOT_TLS_IE))
1797 {
1798 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1799 tls_type = old_tls_type;
1800 else
1801 {
1802 _bfd_error_handler
1803 /* xgettext:c-format */
1804 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1805 abfd, h ? h->root.root.string : "<local>");
1806 return FALSE;
1807 }
1808 }
1809
1810 if (old_tls_type != tls_type)
1811 {
1812 if (h != NULL)
1813 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1814 else
1815 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1816 }
1817 }
1818
1819 if (htab->elf.sgot == NULL)
1820 {
1821 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1822 return FALSE;
1823 }
1824 break;
1825
1826 case R_TILEGX_TLS_GD_CALL:
1827 if (!bfd_link_executable (info))
1828 {
1829 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1830 against __tls_get_addr. */
1831 struct bfd_link_hash_entry *bh = NULL;
1832 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1833 "__tls_get_addr", 0,
1834 bfd_und_section_ptr, 0,
1835 NULL, FALSE, FALSE,
1836 &bh))
1837 return FALSE;
1838 h = (struct elf_link_hash_entry *) bh;
1839 }
1840 else
1841 break;
1842 /* Fall through */
1843
1844 case R_TILEGX_JUMPOFF_X1_PLT:
1845 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1846 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1847 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1848 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1849 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1850 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1851 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1852 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1853 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1854 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1855 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1856 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1857 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1858 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
1859 /* This symbol requires a procedure linkage table entry. We
1860 actually build the entry in adjust_dynamic_symbol,
1861 because this might be a case of linking PIC code without
1862 linking in any dynamic objects, in which case we don't
1863 need to generate a procedure linkage table after all. */
1864
1865 if (h != NULL)
1866 {
1867 h->needs_plt = 1;
1868 h->plt.refcount += 1;
1869 }
1870 break;
1871
1872 case R_TILEGX_64_PCREL:
1873 case R_TILEGX_32_PCREL:
1874 case R_TILEGX_16_PCREL:
1875 case R_TILEGX_8_PCREL:
1876 case R_TILEGX_IMM16_X0_HW0_PCREL:
1877 case R_TILEGX_IMM16_X1_HW0_PCREL:
1878 case R_TILEGX_IMM16_X0_HW1_PCREL:
1879 case R_TILEGX_IMM16_X1_HW1_PCREL:
1880 case R_TILEGX_IMM16_X0_HW2_PCREL:
1881 case R_TILEGX_IMM16_X1_HW2_PCREL:
1882 case R_TILEGX_IMM16_X0_HW3_PCREL:
1883 case R_TILEGX_IMM16_X1_HW3_PCREL:
1884 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1885 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1886 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1887 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1888 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1889 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1890 if (h != NULL)
1891 h->non_got_ref = 1;
1892
1893 if (h != NULL
1894 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1895 break;
1896 /* Fall through. */
1897
1898 case R_TILEGX_64:
1899 case R_TILEGX_32:
1900 case R_TILEGX_16:
1901 case R_TILEGX_8:
1902 case R_TILEGX_HW0:
1903 case R_TILEGX_HW1:
1904 case R_TILEGX_HW2:
1905 case R_TILEGX_HW3:
1906 case R_TILEGX_HW0_LAST:
1907 case R_TILEGX_HW1_LAST:
1908 case R_TILEGX_HW2_LAST:
1909 case R_TILEGX_COPY:
1910 case R_TILEGX_GLOB_DAT:
1911 case R_TILEGX_JMP_SLOT:
1912 case R_TILEGX_RELATIVE:
1913 case R_TILEGX_BROFF_X1:
1914 case R_TILEGX_JUMPOFF_X1:
1915 case R_TILEGX_IMM8_X0:
1916 case R_TILEGX_IMM8_Y0:
1917 case R_TILEGX_IMM8_X1:
1918 case R_TILEGX_IMM8_Y1:
1919 case R_TILEGX_DEST_IMM8_X1:
1920 case R_TILEGX_MT_IMM14_X1:
1921 case R_TILEGX_MF_IMM14_X1:
1922 case R_TILEGX_MMSTART_X0:
1923 case R_TILEGX_MMEND_X0:
1924 case R_TILEGX_SHAMT_X0:
1925 case R_TILEGX_SHAMT_X1:
1926 case R_TILEGX_SHAMT_Y0:
1927 case R_TILEGX_SHAMT_Y1:
1928 case R_TILEGX_IMM16_X0_HW0:
1929 case R_TILEGX_IMM16_X1_HW0:
1930 case R_TILEGX_IMM16_X0_HW1:
1931 case R_TILEGX_IMM16_X1_HW1:
1932 case R_TILEGX_IMM16_X0_HW2:
1933 case R_TILEGX_IMM16_X1_HW2:
1934 case R_TILEGX_IMM16_X0_HW3:
1935 case R_TILEGX_IMM16_X1_HW3:
1936 case R_TILEGX_IMM16_X0_HW0_LAST:
1937 case R_TILEGX_IMM16_X1_HW0_LAST:
1938 case R_TILEGX_IMM16_X0_HW1_LAST:
1939 case R_TILEGX_IMM16_X1_HW1_LAST:
1940 case R_TILEGX_IMM16_X0_HW2_LAST:
1941 case R_TILEGX_IMM16_X1_HW2_LAST:
1942 if (h != NULL)
1943 h->non_got_ref = 1;
1944
1945 r_tilegx_plt32:
1946 if (h != NULL && !bfd_link_pic (info))
1947 {
1948 /* We may need a .plt entry if the function this reloc
1949 refers to is in a shared lib. */
1950 h->plt.refcount += 1;
1951 }
1952
1953 /* If we are creating a shared library, and this is a reloc
1954 against a global symbol, or a non PC relative reloc
1955 against a local symbol, then we need to copy the reloc
1956 into the shared library. However, if we are linking with
1957 -Bsymbolic, we do not need to copy a reloc against a
1958 global symbol which is defined in an object we are
1959 including in the link (i.e., DEF_REGULAR is set). At
1960 this point we have not seen all the input files, so it is
1961 possible that DEF_REGULAR is not set now but will be set
1962 later (it is never cleared). In case of a weak definition,
1963 DEF_REGULAR may be cleared later by a strong definition in
1964 a shared library. We account for that possibility below by
1965 storing information in the relocs_copied field of the hash
1966 table entry. A similar situation occurs when creating
1967 shared libraries and symbol visibility changes render the
1968 symbol local.
1969
1970 If on the other hand, we are creating an executable, we
1971 may need to keep relocations for symbols satisfied by a
1972 dynamic library if we manage to avoid copy relocs for the
1973 symbol. */
1974 if ((bfd_link_pic (info)
1975 && (sec->flags & SEC_ALLOC) != 0
1976 && (! tilegx_elf_howto_table[r_type].pc_relative
1977 || (h != NULL
1978 && (! info->symbolic
1979 || h->root.type == bfd_link_hash_defweak
1980 || !h->def_regular))))
1981 || (!bfd_link_pic (info)
1982 && (sec->flags & SEC_ALLOC) != 0
1983 && h != NULL
1984 && (h->root.type == bfd_link_hash_defweak
1985 || !h->def_regular)))
1986 {
1987 struct elf_dyn_relocs *p;
1988 struct elf_dyn_relocs **head;
1989
1990 /* When creating a shared object, we must copy these
1991 relocs into the output file. We create a reloc
1992 section in dynobj and make room for the reloc. */
1993 if (sreloc == NULL)
1994 {
1995 sreloc = _bfd_elf_make_dynamic_reloc_section
1996 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
1997 /*rela?*/ TRUE);
1998
1999 if (sreloc == NULL)
2000 return FALSE;
2001 }
2002
2003 /* If this is a global symbol, we count the number of
2004 relocations we need for this symbol. */
2005 if (h != NULL)
2006 head =
2007 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2008 else
2009 {
2010 /* Track dynamic relocs needed for local syms too.
2011 We really need local syms available to do this
2012 easily. Oh well. */
2013
2014 asection *s;
2015 void *vpp;
2016 Elf_Internal_Sym *isym;
2017
2018 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2019 abfd, r_symndx);
2020 if (isym == NULL)
2021 return FALSE;
2022
2023 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2024 if (s == NULL)
2025 s = sec;
2026
2027 vpp = &elf_section_data (s)->local_dynrel;
2028 head = (struct elf_dyn_relocs **) vpp;
2029 }
2030
2031 p = *head;
2032 if (p == NULL || p->sec != sec)
2033 {
2034 bfd_size_type amt = sizeof *p;
2035 p = ((struct elf_dyn_relocs *)
2036 bfd_alloc (htab->elf.dynobj, amt));
2037 if (p == NULL)
2038 return FALSE;
2039 p->next = *head;
2040 *head = p;
2041 p->sec = sec;
2042 p->count = 0;
2043 p->pc_count = 0;
2044 }
2045
2046 p->count += 1;
2047 if (tilegx_elf_howto_table[r_type].pc_relative)
2048 p->pc_count += 1;
2049 }
2050
2051 break;
2052
2053 case R_TILEGX_GNU_VTINHERIT:
2054 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2055 return FALSE;
2056 break;
2057
2058 case R_TILEGX_GNU_VTENTRY:
2059 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2060 return FALSE;
2061 break;
2062
2063 default:
2064 break;
2065 }
2066 }
2067
2068 return TRUE;
2069 }
2070
2071 \f
2072 asection *
2073 tilegx_elf_gc_mark_hook (asection *sec,
2074 struct bfd_link_info *info,
2075 Elf_Internal_Rela *rel,
2076 struct elf_link_hash_entry *h,
2077 Elf_Internal_Sym *sym)
2078 {
2079 if (h != NULL)
2080 {
2081 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2082 {
2083 case R_TILEGX_GNU_VTINHERIT:
2084 case R_TILEGX_GNU_VTENTRY:
2085 return NULL;
2086 }
2087 }
2088
2089 /* FIXME: The test here, in check_relocs and in relocate_section
2090 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2091 if (bfd_link_pic (info))
2092 {
2093 struct bfd_link_hash_entry *bh;
2094
2095 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2096 {
2097 case R_TILEGX_TLS_GD_CALL:
2098 /* This reloc implicitly references __tls_get_addr. We know
2099 another reloc will reference the same symbol as the one
2100 on this reloc, so the real symbol and section will be
2101 gc marked when processing the other reloc. That lets
2102 us handle __tls_get_addr here. */
2103 bh = NULL;
2104 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
2105 "__tls_get_addr", 0,
2106 bfd_und_section_ptr,
2107 0, NULL, FALSE,
2108 FALSE, &bh))
2109 return NULL;
2110 h = (struct elf_link_hash_entry *) bh;
2111 BFD_ASSERT (h != NULL);
2112 h->mark = 1;
2113 if (h->is_weakalias)
2114 weakdef (h)->mark = 1;
2115 sym = NULL;
2116 }
2117 }
2118
2119 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2120 }
2121
2122 /* Find dynamic relocs for H that apply to read-only sections. */
2123
2124 static asection *
2125 readonly_dynrelocs (struct elf_link_hash_entry *h)
2126 {
2127 struct elf_dyn_relocs *p;
2128
2129 for (p = tilegx_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
2130 {
2131 asection *s = p->sec->output_section;
2132
2133 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2134 return p->sec;
2135 }
2136 return NULL;
2137 }
2138
2139 /* Adjust a symbol defined by a dynamic object and referenced by a
2140 regular object. The current definition is in some section of the
2141 dynamic object, but we're not including those sections. We have to
2142 change the definition to something the rest of the link can
2143 understand. */
2144
2145 bfd_boolean
2146 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2147 struct elf_link_hash_entry *h)
2148 {
2149 struct tilegx_elf_link_hash_table *htab;
2150 bfd *dynobj;
2151 asection *s, *srel;
2152
2153 htab = tilegx_elf_hash_table (info);
2154 BFD_ASSERT (htab != NULL);
2155
2156 dynobj = htab->elf.dynobj;
2157
2158 /* Make sure we know what is going on here. */
2159 BFD_ASSERT (dynobj != NULL
2160 && (h->needs_plt
2161 || h->is_weakalias
2162 || (h->def_dynamic
2163 && h->ref_regular
2164 && !h->def_regular)));
2165
2166 /* If this is a function, put it in the procedure linkage table. We
2167 will fill in the contents of the procedure linkage table later
2168 (although we could actually do it here). */
2169 if (h->type == STT_FUNC || h->needs_plt)
2170 {
2171 if (h->plt.refcount <= 0
2172 || SYMBOL_CALLS_LOCAL (info, h)
2173 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2174 && h->root.type == bfd_link_hash_undefweak))
2175 {
2176 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2177 reloc in an input file, but the symbol was never referred
2178 to by a dynamic object, or if all references were garbage
2179 collected. In such a case, we don't actually need to build
2180 a procedure linkage table, and we can just do a
2181 R_TILEGX_JUMPOFF_X1 relocation instead. */
2182 h->plt.offset = (bfd_vma) -1;
2183 h->needs_plt = 0;
2184 }
2185
2186 return TRUE;
2187 }
2188 else
2189 h->plt.offset = (bfd_vma) -1;
2190
2191 /* If this is a weak symbol, and there is a real definition, the
2192 processor independent code will have arranged for us to see the
2193 real definition first, and we can just use the same value. */
2194 if (h->is_weakalias)
2195 {
2196 struct elf_link_hash_entry *def = weakdef (h);
2197 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2198 h->root.u.def.section = def->root.u.def.section;
2199 h->root.u.def.value = def->root.u.def.value;
2200 return TRUE;
2201 }
2202
2203 /* This is a reference to a symbol defined by a dynamic object which
2204 is not a function. */
2205
2206 /* If we are creating a shared library, we must presume that the
2207 only references to the symbol are via the global offset table.
2208 For such cases we need not do anything here; the relocations will
2209 be handled correctly by relocate_section. */
2210 if (bfd_link_pic (info))
2211 return TRUE;
2212
2213 /* If there are no references to this symbol that do not use the
2214 GOT, we don't need to generate a copy reloc. */
2215 if (!h->non_got_ref)
2216 return TRUE;
2217
2218 /* If -z nocopyreloc was given, we won't generate them either. */
2219 if (info->nocopyreloc)
2220 {
2221 h->non_got_ref = 0;
2222 return TRUE;
2223 }
2224
2225 /* If we don't find any dynamic relocs in read-only sections, then
2226 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2227 if (!readonly_dynrelocs (h))
2228 {
2229 h->non_got_ref = 0;
2230 return TRUE;
2231 }
2232
2233 /* We must allocate the symbol in our .dynbss section, which will
2234 become part of the .bss section of the executable. There will be
2235 an entry for this symbol in the .dynsym section. The dynamic
2236 object will contain position independent code, so all references
2237 from the dynamic object to this symbol will go through the global
2238 offset table. The dynamic linker will use the .dynsym entry to
2239 determine the address it must put in the global offset table, so
2240 both the dynamic object and the regular object will refer to the
2241 same memory location for the variable. */
2242
2243 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2244 to copy the initial value out of the dynamic object and into the
2245 runtime process image. We need to remember the offset into the
2246 .rel.bss section we are going to use. */
2247 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2248 {
2249 s = htab->elf.sdynrelro;
2250 srel = htab->elf.sreldynrelro;
2251 }
2252 else
2253 {
2254 s = htab->elf.sdynbss;
2255 srel = htab->elf.srelbss;
2256 }
2257 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2258 {
2259 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2260 h->needs_copy = 1;
2261 }
2262
2263 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2264 }
2265
2266 /* Allocate space in .plt, .got and associated reloc sections for
2267 dynamic relocs. */
2268
2269 static bfd_boolean
2270 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2271 {
2272 struct bfd_link_info *info;
2273 struct tilegx_elf_link_hash_table *htab;
2274 struct tilegx_elf_link_hash_entry *eh;
2275 struct elf_dyn_relocs *p;
2276
2277 if (h->root.type == bfd_link_hash_indirect)
2278 return TRUE;
2279
2280 info = (struct bfd_link_info *) inf;
2281 htab = tilegx_elf_hash_table (info);
2282 BFD_ASSERT (htab != NULL);
2283
2284 if (htab->elf.dynamic_sections_created
2285 && h->plt.refcount > 0)
2286 {
2287 /* Make sure this symbol is output as a dynamic symbol.
2288 Undefined weak syms won't yet be marked as dynamic. */
2289 if (h->dynindx == -1
2290 && !h->forced_local)
2291 {
2292 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2293 return FALSE;
2294 }
2295
2296 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2297 {
2298 asection *s = htab->elf.splt;
2299
2300 /* Allocate room for the header and tail. */
2301 if (s->size == 0)
2302 {
2303 s->size = PLT_ENTRY_SIZE;
2304 }
2305
2306 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
2307
2308 /* If this symbol is not defined in a regular file, and we are
2309 not generating a shared library, then set the symbol to this
2310 location in the .plt. This is required to make function
2311 pointers compare as equal between the normal executable and
2312 the shared library. */
2313 if (! bfd_link_pic (info)
2314 && !h->def_regular)
2315 {
2316 h->root.u.def.section = s;
2317 h->root.u.def.value = h->plt.offset;
2318 }
2319
2320 /* Make room for this entry. */
2321 s->size += PLT_ENTRY_SIZE;
2322
2323 /* We also need to make an entry in the .got.plt section. */
2324 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2325
2326 /* We also need to make an entry in the .rela.plt section. */
2327 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2328 }
2329 else
2330 {
2331 h->plt.offset = (bfd_vma) -1;
2332 h->needs_plt = 0;
2333 }
2334 }
2335 else
2336 {
2337 h->plt.offset = (bfd_vma) -1;
2338 h->needs_plt = 0;
2339 }
2340
2341 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2342 requiring no TLS entry. */
2343 if (h->got.refcount > 0
2344 && !htab->disable_le_transition
2345 && bfd_link_executable (info)
2346 && h->dynindx == -1
2347 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2348 h->got.offset = (bfd_vma) -1;
2349 else if (h->got.refcount > 0)
2350 {
2351 asection *s;
2352 bfd_boolean dyn;
2353 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2354
2355 /* Make sure this symbol is output as a dynamic symbol.
2356 Undefined weak syms won't yet be marked as dynamic. */
2357 if (h->dynindx == -1
2358 && !h->forced_local)
2359 {
2360 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2361 return FALSE;
2362 }
2363
2364 s = htab->elf.sgot;
2365 h->got.offset = s->size;
2366 s->size += TILEGX_ELF_WORD_BYTES (htab);
2367 /* TLS_GD entries need 2 consecutive GOT slots. */
2368 if (tls_type == GOT_TLS_GD)
2369 s->size += TILEGX_ELF_WORD_BYTES (htab);
2370 dyn = htab->elf.dynamic_sections_created;
2371 /* TLS_IE needs one dynamic relocation,
2372 TLS_GD needs two if local symbol and two if global. */
2373 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2374 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2375 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2376 bfd_link_pic (info),
2377 h))
2378 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2379 }
2380 else
2381 h->got.offset = (bfd_vma) -1;
2382
2383 eh = (struct tilegx_elf_link_hash_entry *) h;
2384 if (eh->dyn_relocs == NULL)
2385 return TRUE;
2386
2387 /* In the shared -Bsymbolic case, discard space allocated for
2388 dynamic pc-relative relocs against symbols which turn out to be
2389 defined in regular objects. For the normal shared case, discard
2390 space for pc-relative relocs that have become local due to symbol
2391 visibility changes. */
2392
2393 if (bfd_link_pic (info))
2394 {
2395 if (SYMBOL_CALLS_LOCAL (info, h))
2396 {
2397 struct elf_dyn_relocs **pp;
2398
2399 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2400 {
2401 p->count -= p->pc_count;
2402 p->pc_count = 0;
2403 if (p->count == 0)
2404 *pp = p->next;
2405 else
2406 pp = &p->next;
2407 }
2408 }
2409
2410 /* Also discard relocs on undefined weak syms with non-default
2411 visibility. */
2412 if (eh->dyn_relocs != NULL
2413 && h->root.type == bfd_link_hash_undefweak)
2414 {
2415 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2416 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2417 eh->dyn_relocs = NULL;
2418
2419 /* Make sure undefined weak symbols are output as a dynamic
2420 symbol in PIEs. */
2421 else if (h->dynindx == -1
2422 && !h->forced_local)
2423 {
2424 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2425 return FALSE;
2426 }
2427 }
2428 }
2429 else
2430 {
2431 /* For the non-shared case, discard space for relocs against
2432 symbols which turn out to need copy relocs or are not
2433 dynamic. */
2434
2435 if (!h->non_got_ref
2436 && ((h->def_dynamic
2437 && !h->def_regular)
2438 || (htab->elf.dynamic_sections_created
2439 && (h->root.type == bfd_link_hash_undefweak
2440 || h->root.type == bfd_link_hash_undefined))))
2441 {
2442 /* Make sure this symbol is output as a dynamic symbol.
2443 Undefined weak syms won't yet be marked as dynamic. */
2444 if (h->dynindx == -1
2445 && !h->forced_local)
2446 {
2447 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2448 return FALSE;
2449 }
2450
2451 /* If that succeeded, we know we'll be keeping all the
2452 relocs. */
2453 if (h->dynindx != -1)
2454 goto keep;
2455 }
2456
2457 eh->dyn_relocs = NULL;
2458
2459 keep: ;
2460 }
2461
2462 /* Finally, allocate space. */
2463 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2464 {
2465 asection *sreloc = elf_section_data (p->sec)->sreloc;
2466 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2467 }
2468
2469 return TRUE;
2470 }
2471
2472 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2473 read-only sections. */
2474
2475 static bfd_boolean
2476 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2477 {
2478 asection *sec;
2479
2480 if (h->root.type == bfd_link_hash_indirect)
2481 return TRUE;
2482
2483 sec = readonly_dynrelocs (h);
2484 if (sec != NULL)
2485 {
2486 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2487
2488 info->flags |= DF_TEXTREL;
2489 info->callbacks->minfo
2490 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2491 sec->owner, h->root.root.string, sec);
2492
2493 /* Not an error, just cut short the traversal. */
2494 return FALSE;
2495 }
2496 return TRUE;
2497 }
2498
2499 /* Return true if the dynamic symbol for a given section should be
2500 omitted when creating a shared library. */
2501
2502 bfd_boolean
2503 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2504 struct bfd_link_info *info,
2505 asection *p)
2506 {
2507 /* We keep the .got section symbol so that explicit relocations
2508 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2509 can be turned into relocations against the .got symbol. */
2510 if (strcmp (p->name, ".got") == 0)
2511 return FALSE;
2512
2513 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2514 }
2515
2516 bfd_boolean
2517 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2518 struct bfd_link_info *info)
2519 {
2520 struct tilegx_elf_link_hash_table *htab;
2521 bfd *dynobj;
2522 asection *s;
2523 bfd *ibfd;
2524
2525 htab = tilegx_elf_hash_table (info);
2526 BFD_ASSERT (htab != NULL);
2527 dynobj = htab->elf.dynobj;
2528 BFD_ASSERT (dynobj != NULL);
2529
2530 if (elf_hash_table (info)->dynamic_sections_created)
2531 {
2532 /* Set the contents of the .interp section to the interpreter. */
2533 if (bfd_link_executable (info) && !info->nointerp)
2534 {
2535 s = bfd_get_linker_section (dynobj, ".interp");
2536 BFD_ASSERT (s != NULL);
2537 s->size = strlen (htab->dynamic_interpreter) + 1;
2538 s->contents = (unsigned char *) htab->dynamic_interpreter;
2539 }
2540 }
2541
2542 /* Set up .got offsets for local syms, and space for local dynamic
2543 relocs. */
2544 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2545 {
2546 bfd_signed_vma *local_got;
2547 bfd_signed_vma *end_local_got;
2548 char *local_tls_type;
2549 bfd_size_type locsymcount;
2550 Elf_Internal_Shdr *symtab_hdr;
2551 asection *srel;
2552
2553 if (! is_tilegx_elf (ibfd))
2554 continue;
2555
2556 for (s = ibfd->sections; s != NULL; s = s->next)
2557 {
2558 struct elf_dyn_relocs *p;
2559
2560 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2561 {
2562 if (!bfd_is_abs_section (p->sec)
2563 && bfd_is_abs_section (p->sec->output_section))
2564 {
2565 /* Input section has been discarded, either because
2566 it is a copy of a linkonce section or due to
2567 linker script /DISCARD/, so we'll be discarding
2568 the relocs too. */
2569 }
2570 else if (p->count != 0)
2571 {
2572 srel = elf_section_data (p->sec)->sreloc;
2573 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2574 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2575 {
2576 info->flags |= DF_TEXTREL;
2577
2578 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2579 p->sec->owner, p->sec);
2580 }
2581 }
2582 }
2583 }
2584
2585 local_got = elf_local_got_refcounts (ibfd);
2586 if (!local_got)
2587 continue;
2588
2589 symtab_hdr = &elf_symtab_hdr (ibfd);
2590 locsymcount = symtab_hdr->sh_info;
2591 end_local_got = local_got + locsymcount;
2592 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2593 s = htab->elf.sgot;
2594 srel = htab->elf.srelgot;
2595 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2596 {
2597 if (*local_got > 0)
2598 {
2599 *local_got = s->size;
2600 s->size += TILEGX_ELF_WORD_BYTES (htab);
2601 if (*local_tls_type == GOT_TLS_GD)
2602 s->size += TILEGX_ELF_WORD_BYTES (htab);
2603 if (bfd_link_pic (info)
2604 || *local_tls_type == GOT_TLS_GD
2605 || *local_tls_type == GOT_TLS_IE)
2606 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2607 }
2608 else
2609 *local_got = (bfd_vma) -1;
2610 }
2611 }
2612
2613 /* Allocate global sym .plt and .got entries, and space for global
2614 sym dynamic relocs. */
2615 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2616
2617 if (elf_hash_table (info)->dynamic_sections_created)
2618 {
2619 /* If the .got section is more than 0x8000 bytes, we add
2620 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2621 bit relocations have a greater chance of working. */
2622 if (htab->elf.sgot->size >= 0x8000
2623 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2624 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2625 }
2626
2627 if (htab->elf.sgotplt)
2628 {
2629 struct elf_link_hash_entry *got;
2630 got = elf_link_hash_lookup (elf_hash_table (info),
2631 "_GLOBAL_OFFSET_TABLE_",
2632 FALSE, FALSE, FALSE);
2633
2634 /* Don't allocate .got.plt section if there are no GOT nor PLT
2635 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2636 if ((got == NULL
2637 || !got->ref_regular_nonweak)
2638 && (htab->elf.sgotplt->size
2639 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2640 && (htab->elf.splt == NULL
2641 || htab->elf.splt->size == 0)
2642 && (htab->elf.sgot == NULL
2643 || (htab->elf.sgot->size
2644 == get_elf_backend_data (output_bfd)->got_header_size)))
2645 htab->elf.sgotplt->size = 0;
2646 }
2647
2648 /* The check_relocs and adjust_dynamic_symbol entry points have
2649 determined the sizes of the various dynamic sections. Allocate
2650 memory for them. */
2651 for (s = dynobj->sections; s != NULL; s = s->next)
2652 {
2653 if ((s->flags & SEC_LINKER_CREATED) == 0)
2654 continue;
2655
2656 if (s == htab->elf.splt
2657 || s == htab->elf.sgot
2658 || s == htab->elf.sgotplt
2659 || s == htab->elf.sdynbss
2660 || s == htab->elf.sdynrelro)
2661 {
2662 /* Strip this section if we don't need it; see the
2663 comment below. */
2664 }
2665 else if (strncmp (s->name, ".rela", 5) == 0)
2666 {
2667 if (s->size != 0)
2668 {
2669 /* We use the reloc_count field as a counter if we need
2670 to copy relocs into the output file. */
2671 s->reloc_count = 0;
2672 }
2673 }
2674 else
2675 {
2676 /* It's not one of our sections. */
2677 continue;
2678 }
2679
2680 if (s->size == 0)
2681 {
2682 /* If we don't need this section, strip it from the
2683 output file. This is mostly to handle .rela.bss and
2684 .rela.plt. We must create both sections in
2685 create_dynamic_sections, because they must be created
2686 before the linker maps input sections to output
2687 sections. The linker does that before
2688 adjust_dynamic_symbol is called, and it is that
2689 function which decides whether anything needs to go
2690 into these sections. */
2691 s->flags |= SEC_EXCLUDE;
2692 continue;
2693 }
2694
2695 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2696 continue;
2697
2698 /* Allocate memory for the section contents. Zero the memory
2699 for the benefit of .rela.plt, which has 4 unused entries
2700 at the beginning, and we don't want garbage. */
2701 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2702 if (s->contents == NULL)
2703 return FALSE;
2704 }
2705
2706 if (elf_hash_table (info)->dynamic_sections_created)
2707 {
2708 /* Add some entries to the .dynamic section. We fill in the
2709 values later, in tilegx_elf_finish_dynamic_sections, but we
2710 must add the entries now so that we get the correct size for
2711 the .dynamic section. The DT_DEBUG entry is filled in by the
2712 dynamic linker and used by the debugger. */
2713 #define add_dynamic_entry(TAG, VAL) \
2714 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2715
2716 if (bfd_link_executable (info))
2717 {
2718 if (!add_dynamic_entry (DT_DEBUG, 0))
2719 return FALSE;
2720 }
2721
2722 if (htab->elf.srelplt->size != 0)
2723 {
2724 if (!add_dynamic_entry (DT_PLTGOT, 0)
2725 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2726 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2727 || !add_dynamic_entry (DT_JMPREL, 0))
2728 return FALSE;
2729 }
2730
2731 if (!add_dynamic_entry (DT_RELA, 0)
2732 || !add_dynamic_entry (DT_RELASZ, 0)
2733 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2734 return FALSE;
2735
2736 /* If any dynamic relocs apply to a read-only section,
2737 then we need a DT_TEXTREL entry. */
2738 if ((info->flags & DF_TEXTREL) == 0)
2739 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2740
2741 if (info->flags & DF_TEXTREL)
2742 {
2743 if (!add_dynamic_entry (DT_TEXTREL, 0))
2744 return FALSE;
2745 }
2746 }
2747 #undef add_dynamic_entry
2748
2749 return TRUE;
2750 }
2751 \f
2752 /* Return the base VMA address which should be subtracted from real addresses
2753 when resolving @dtpoff relocation.
2754 This is PT_TLS segment p_vaddr. */
2755
2756 static bfd_vma
2757 dtpoff_base (struct bfd_link_info *info)
2758 {
2759 /* If tls_sec is NULL, we should have signalled an error already. */
2760 if (elf_hash_table (info)->tls_sec == NULL)
2761 return 0;
2762 return elf_hash_table (info)->tls_sec->vma;
2763 }
2764
2765 /* Return the relocation value for @tpoff relocation. */
2766
2767 static bfd_vma
2768 tpoff (struct bfd_link_info *info, bfd_vma address)
2769 {
2770 struct elf_link_hash_table *htab = elf_hash_table (info);
2771
2772 /* If tls_sec is NULL, we should have signalled an error already. */
2773 if (htab->tls_sec == NULL)
2774 return 0;
2775
2776 return (address - htab->tls_sec->vma);
2777 }
2778
2779 /* Copy SIZE bits from FROM to TO at address ADDR. */
2780
2781 static void
2782 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2783 {
2784 int i;
2785 for (i = 0; i < size; i++)
2786 {
2787 int from_byte = (from + i) / 8;
2788 int from_bit = (from + i) % 8;
2789 int to_byte = (to + i) / 8;
2790 int to_bit = (to + i) % 8;
2791 bfd_byte to_mask = 1 << to_bit;
2792 addr[to_byte] = (addr[to_byte] & ~to_mask)
2793 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2794 }
2795 }
2796
2797 /* Replace the MASK bits in ADDR with those in INSN, for the next
2798 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2799
2800 static void
2801 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2802 const bfd_byte *insn)
2803 {
2804 int i;
2805 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2806 {
2807 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2808 }
2809 }
2810
2811 /* Mask to extract the bits corresponding to an instruction in a
2812 specific pipe of a bundle. */
2813 static const bfd_byte insn_mask_X1[] = {
2814 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2815 };
2816
2817 /* Mask to extract the bits corresponding to an instruction in a
2818 specific pipe of a bundle, minus the destination operand and the
2819 first source operand. */
2820 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2821 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2822 };
2823
2824 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2825 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2826 };
2827
2828 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2829 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2830 };
2831 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2832 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2833 };
2834
2835 /* Mask to extract the bits corresponding to an instruction in a
2836 specific pipe of a bundle, minus the register operands. */
2837 static const bfd_byte insn_mask_X0_no_operand[] = {
2838 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2839 };
2840
2841 static const bfd_byte insn_mask_X1_no_operand[] = {
2842 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
2843 };
2844
2845 static const bfd_byte insn_mask_Y0_no_operand[] = {
2846 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
2847 };
2848
2849 static const bfd_byte insn_mask_Y1_no_operand[] = {
2850 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
2851 };
2852
2853 /* Various instructions synthesized to support tls references. */
2854
2855 /* ld r0, r0 in the X1 pipe, used for tls ie. */
2856 static const bfd_byte insn_tls_ie_ld_X1[] = {
2857 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
2858 };
2859
2860 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
2861 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
2862 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
2863 };
2864
2865 /* add r0, r0, tp in various pipes, used for tls ie. */
2866 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2867 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
2868 };
2869 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2870 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
2871 };
2872
2873 /* addx r0, r0, tp in various pipes, used for tls ie. */
2874 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
2875 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
2876 };
2877 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
2878 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
2879 };
2880
2881 /* move r0, r0 in various pipes, used for tls gd. */
2882 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2883 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
2884 };
2885 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2886 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
2887 };
2888
2889 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
2890 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
2891
2892 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
2893 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
2894
2895 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
2896 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
2897
2898 /* Relocate an TILEGX ELF section.
2899
2900 The RELOCATE_SECTION function is called by the new ELF backend linker
2901 to handle the relocations for a section.
2902
2903 The relocs are always passed as Rela structures.
2904
2905 This function is responsible for adjusting the section contents as
2906 necessary, and (if generating a relocatable output file) adjusting
2907 the reloc addend as necessary.
2908
2909 This function does not have to worry about setting the reloc
2910 address or the reloc symbol index.
2911
2912 LOCAL_SYMS is a pointer to the swapped in local symbols.
2913
2914 LOCAL_SECTIONS is an array giving the section in the input file
2915 corresponding to the st_shndx field of each local symbol.
2916
2917 The global hash table entry for the global symbols can be found
2918 via elf_sym_hashes (input_bfd).
2919
2920 When generating relocatable output, this function must handle
2921 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2922 going to be the section symbol corresponding to the output
2923 section, which means that the addend must be adjusted
2924 accordingly. */
2925
2926 bfd_boolean
2927 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2928 bfd *input_bfd, asection *input_section,
2929 bfd_byte *contents, Elf_Internal_Rela *relocs,
2930 Elf_Internal_Sym *local_syms,
2931 asection **local_sections)
2932 {
2933 struct tilegx_elf_link_hash_table *htab;
2934 Elf_Internal_Shdr *symtab_hdr;
2935 struct elf_link_hash_entry **sym_hashes;
2936 bfd_vma *local_got_offsets;
2937 bfd_vma got_base;
2938 asection *sreloc;
2939 Elf_Internal_Rela *rel;
2940 Elf_Internal_Rela *relend;
2941 int num_relocs;
2942
2943 htab = tilegx_elf_hash_table (info);
2944 BFD_ASSERT (htab != NULL);
2945 symtab_hdr = &elf_symtab_hdr (input_bfd);
2946 sym_hashes = elf_sym_hashes (input_bfd);
2947 local_got_offsets = elf_local_got_offsets (input_bfd);
2948
2949 if (elf_hash_table (info)->hgot == NULL)
2950 got_base = 0;
2951 else
2952 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2953
2954 sreloc = elf_section_data (input_section)->sreloc;
2955
2956 rel = relocs;
2957 num_relocs = input_section->reloc_count;
2958 relend = relocs + num_relocs;
2959 for (; rel < relend; rel++)
2960 {
2961 int r_type, tls_type;
2962 bfd_boolean is_tls_iele, is_tls_le;
2963 reloc_howto_type *howto;
2964 unsigned long r_symndx;
2965 struct elf_link_hash_entry *h;
2966 Elf_Internal_Sym *sym;
2967 tilegx_create_func create_func;
2968 asection *sec;
2969 bfd_vma relocation;
2970 bfd_reloc_status_type r;
2971 const char *name;
2972 bfd_vma off;
2973 bfd_boolean is_plt = FALSE;
2974 bfd_boolean resolved_to_zero;
2975 bfd_boolean unresolved_reloc;
2976
2977 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2978 if (r_type == R_TILEGX_GNU_VTINHERIT
2979 || r_type == R_TILEGX_GNU_VTENTRY)
2980 continue;
2981
2982 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
2983 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2984
2985 howto = tilegx_elf_howto_table + r_type;
2986
2987 /* This is a final link. */
2988 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2989 h = NULL;
2990 sym = NULL;
2991 sec = NULL;
2992 unresolved_reloc = FALSE;
2993 if (r_symndx < symtab_hdr->sh_info)
2994 {
2995 sym = local_syms + r_symndx;
2996 sec = local_sections[r_symndx];
2997 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2998 }
2999 else
3000 {
3001 bfd_boolean warned ATTRIBUTE_UNUSED;
3002 bfd_boolean ignored ATTRIBUTE_UNUSED;
3003
3004 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3005 r_symndx, symtab_hdr, sym_hashes,
3006 h, sec, relocation,
3007 unresolved_reloc, warned, ignored);
3008 if (warned)
3009 {
3010 /* To avoid generating warning messages about truncated
3011 relocations, set the relocation's address to be the same as
3012 the start of this section. */
3013 if (input_section->output_section != NULL)
3014 relocation = input_section->output_section->vma;
3015 else
3016 relocation = 0;
3017 }
3018 }
3019
3020 if (sec != NULL && discarded_section (sec))
3021 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3022 rel, 1, relend, howto, 0, contents);
3023
3024 if (bfd_link_relocatable (info))
3025 continue;
3026
3027 if (h != NULL)
3028 name = h->root.root.string;
3029 else
3030 {
3031 name = (bfd_elf_string_from_elf_section
3032 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3033 if (name == NULL || *name == '\0')
3034 name = bfd_section_name (sec);
3035 }
3036
3037 switch (r_type)
3038 {
3039 case R_TILEGX_TLS_GD_CALL:
3040 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3041 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3042 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3043 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3044 case R_TILEGX_IMM8_X0_TLS_ADD:
3045 case R_TILEGX_IMM8_Y0_TLS_ADD:
3046 case R_TILEGX_IMM8_X1_TLS_ADD:
3047 case R_TILEGX_IMM8_Y1_TLS_ADD:
3048 tls_type = GOT_UNKNOWN;
3049 if (h == NULL && local_got_offsets)
3050 tls_type =
3051 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3052 else if (h != NULL)
3053 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3054
3055 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
3056 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3057 && bfd_link_executable (info)
3058 && (h == NULL || h->dynindx == -1));
3059
3060 if (r_type == R_TILEGX_TLS_GD_CALL)
3061 {
3062 if (is_tls_le)
3063 {
3064 /* GD -> LE */
3065 tilegx_replace_insn (contents + rel->r_offset,
3066 insn_mask_X1, insn_move_X0X1);
3067 continue;
3068 }
3069 else if (is_tls_iele)
3070 {
3071 /* GD -> IE */
3072 if (ABI_64_P (output_bfd))
3073 tilegx_replace_insn (contents + rel->r_offset,
3074 insn_mask_X1, insn_tls_ie_ld_X1);
3075 else
3076 tilegx_replace_insn (contents + rel->r_offset,
3077 insn_mask_X1, insn_tls_ie_ld4s_X1);
3078 continue;
3079 }
3080
3081 /* GD -> GD */
3082 h = (struct elf_link_hash_entry *)
3083 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3084 FALSE, TRUE);
3085 BFD_ASSERT (h != NULL);
3086 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3087 howto = tilegx_elf_howto_table + r_type;
3088 }
3089 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3090 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3091 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3092 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3093 {
3094 bfd_boolean is_pipe0 =
3095 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3096 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3097 bfd_boolean is_X0X1 =
3098 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3099 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3100 int dest_begin = is_pipe0 ? 0 : 31;
3101 int src_begin;
3102 const bfd_byte *insn;
3103 const bfd_byte *mask = NULL;
3104
3105 if (is_tls_le)
3106 {
3107 /* 1. copy dest operand into the first source operand.
3108 2. change the opcode to "move". */
3109 src_begin = is_pipe0 ? 6 : 37;
3110 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3111
3112 switch (r_type)
3113 {
3114 case R_TILEGX_IMM8_X0_TLS_ADD:
3115 mask = insn_mask_X0_no_dest_no_srca;
3116 break;
3117 case R_TILEGX_IMM8_X1_TLS_ADD:
3118 mask = insn_mask_X1_no_dest_no_srca;
3119 break;
3120 case R_TILEGX_IMM8_Y0_TLS_ADD:
3121 mask = insn_mask_Y0_no_dest_no_srca;
3122 break;
3123 case R_TILEGX_IMM8_Y1_TLS_ADD:
3124 mask = insn_mask_Y1_no_dest_no_srca;
3125 break;
3126 }
3127 }
3128 else
3129 {
3130 /* 1. copy dest operand into the second source operand.
3131 2. change the opcode to "add". */
3132 src_begin = is_pipe0 ? 12 : 43;
3133 if (ABI_64_P (output_bfd))
3134 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3135 else
3136 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3137
3138 switch (r_type)
3139 {
3140 case R_TILEGX_IMM8_X0_TLS_ADD:
3141 mask = insn_mask_X0_no_operand;
3142 break;
3143 case R_TILEGX_IMM8_X1_TLS_ADD:
3144 mask = insn_mask_X1_no_operand;
3145 break;
3146 case R_TILEGX_IMM8_Y0_TLS_ADD:
3147 mask = insn_mask_Y0_no_operand;
3148 break;
3149 case R_TILEGX_IMM8_Y1_TLS_ADD:
3150 mask = insn_mask_Y1_no_operand;
3151 break;
3152 }
3153 }
3154
3155 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3156 src_begin, 6);
3157 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3158
3159 continue;
3160 }
3161 else
3162 {
3163 const bfd_byte *mask = NULL;
3164 const bfd_byte *add_insn = NULL;
3165 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3166
3167 switch (r_type)
3168 {
3169 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3170 add_insn = is_tls_iele
3171 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3172 : insn_tls_gd_add_X0X1;
3173 mask = insn_mask_X0_no_dest_no_srca;
3174 break;
3175 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3176 add_insn = is_tls_iele
3177 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3178 : insn_tls_gd_add_X0X1;
3179 mask = insn_mask_X1_no_dest_no_srca;
3180 break;
3181 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3182 add_insn = is_tls_iele
3183 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3184 : insn_tls_gd_add_Y0Y1;
3185 mask = insn_mask_Y0_no_dest_no_srca;
3186 break;
3187 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3188 add_insn = is_tls_iele
3189 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3190 : insn_tls_gd_add_Y0Y1;
3191 mask = insn_mask_Y1_no_dest_no_srca;
3192 break;
3193 }
3194
3195 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3196
3197 continue;
3198 }
3199 break;
3200 case R_TILEGX_TLS_IE_LOAD:
3201 if (!input_section->sec_flg0
3202 && bfd_link_executable (info)
3203 && (h == NULL || h->dynindx == -1))
3204 {
3205 /* IE -> LE */
3206 tilegx_replace_insn (contents + rel->r_offset,
3207 insn_mask_X1_no_dest_no_srca,
3208 insn_move_X0X1);
3209 }
3210 else
3211 {
3212 /* IE -> IE */
3213 if (ABI_64_P (output_bfd))
3214 tilegx_replace_insn (contents + rel->r_offset,
3215 insn_mask_X1_no_dest_no_srca,
3216 insn_tls_ie_ld_X1);
3217 else
3218 tilegx_replace_insn (contents + rel->r_offset,
3219 insn_mask_X1_no_dest_no_srca,
3220 insn_tls_ie_ld4s_X1);
3221 }
3222 continue;
3223 break;
3224 default:
3225 break;
3226 }
3227
3228 resolved_to_zero = (h != NULL
3229 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
3230
3231 switch (r_type)
3232 {
3233 case R_TILEGX_IMM16_X0_HW0_GOT:
3234 case R_TILEGX_IMM16_X1_HW0_GOT:
3235 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3236 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3237 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3238 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3239 /* Relocation is to the entry for this symbol in the global
3240 offset table. */
3241 if (htab->elf.sgot == NULL)
3242 abort ();
3243
3244 if (h != NULL)
3245 {
3246 bfd_boolean dyn;
3247
3248 off = h->got.offset;
3249 BFD_ASSERT (off != (bfd_vma) -1);
3250 dyn = elf_hash_table (info)->dynamic_sections_created;
3251
3252 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3253 bfd_link_pic (info),
3254 h)
3255 || (bfd_link_pic (info)
3256 && SYMBOL_REFERENCES_LOCAL (info, h)))
3257 {
3258 /* This is actually a static link, or it is a
3259 -Bsymbolic link and the symbol is defined
3260 locally, or the symbol was forced to be local
3261 because of a version file. We must initialize
3262 this entry in the global offset table. Since the
3263 offset must always be a multiple
3264 of 8 for 64-bit, we use the least significant bit
3265 to record whether we have initialized it already.
3266
3267 When doing a dynamic link, we create a .rela.got
3268 relocation entry to initialize the value. This
3269 is done in the finish_dynamic_symbol routine. */
3270 if ((off & 1) != 0)
3271 off &= ~1;
3272 else
3273 {
3274 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3275 htab->elf.sgot->contents + off);
3276 h->got.offset |= 1;
3277 }
3278 }
3279 else
3280 unresolved_reloc = FALSE;
3281 }
3282 else
3283 {
3284 BFD_ASSERT (local_got_offsets != NULL
3285 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3286
3287 off = local_got_offsets[r_symndx];
3288
3289 /* The offset must always be a multiple of 8 on 64-bit.
3290 We use the least significant bit to record
3291 whether we have already processed this entry. */
3292 if ((off & 1) != 0)
3293 off &= ~1;
3294 else
3295 {
3296 if (bfd_link_pic (info))
3297 {
3298 asection *s;
3299 Elf_Internal_Rela outrel;
3300
3301 /* We need to generate a R_TILEGX_RELATIVE reloc
3302 for the dynamic linker. */
3303 s = htab->elf.srelgot;
3304 BFD_ASSERT (s != NULL);
3305
3306 outrel.r_offset = (htab->elf.sgot->output_section->vma
3307 + htab->elf.sgot->output_offset
3308 + off);
3309 outrel.r_info =
3310 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3311 outrel.r_addend = relocation;
3312 relocation = 0;
3313 tilegx_elf_append_rela (output_bfd, s, &outrel);
3314 }
3315
3316 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3317 htab->elf.sgot->contents + off);
3318 local_got_offsets[r_symndx] |= 1;
3319 }
3320 }
3321 relocation = off - got_base;
3322 break;
3323
3324 case R_TILEGX_JUMPOFF_X1_PLT:
3325 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3326 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3327 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3328 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3329 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3330 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3331 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3332 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3333 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3334 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3335 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3336 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3337 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3338 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
3339 /* Relocation is to the entry for this symbol in the
3340 procedure linkage table. */
3341 BFD_ASSERT (h != NULL);
3342
3343 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3344 {
3345 /* We didn't make a PLT entry for this symbol. This
3346 happens when statically linking PIC code, or when
3347 using -Bsymbolic. */
3348 break;
3349 }
3350
3351 relocation = (htab->elf.splt->output_section->vma
3352 + htab->elf.splt->output_offset
3353 + h->plt.offset);
3354 unresolved_reloc = FALSE;
3355 break;
3356
3357 case R_TILEGX_64_PCREL:
3358 case R_TILEGX_32_PCREL:
3359 case R_TILEGX_16_PCREL:
3360 case R_TILEGX_8_PCREL:
3361 case R_TILEGX_IMM16_X0_HW0_PCREL:
3362 case R_TILEGX_IMM16_X1_HW0_PCREL:
3363 case R_TILEGX_IMM16_X0_HW1_PCREL:
3364 case R_TILEGX_IMM16_X1_HW1_PCREL:
3365 case R_TILEGX_IMM16_X0_HW2_PCREL:
3366 case R_TILEGX_IMM16_X1_HW2_PCREL:
3367 case R_TILEGX_IMM16_X0_HW3_PCREL:
3368 case R_TILEGX_IMM16_X1_HW3_PCREL:
3369 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3370 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3371 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3372 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3373 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3374 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3375 if (h != NULL
3376 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3377 break;
3378 /* Fall through. */
3379 case R_TILEGX_64:
3380 case R_TILEGX_32:
3381 case R_TILEGX_16:
3382 case R_TILEGX_8:
3383 case R_TILEGX_HW0:
3384 case R_TILEGX_HW1:
3385 case R_TILEGX_HW2:
3386 case R_TILEGX_HW3:
3387 case R_TILEGX_HW0_LAST:
3388 case R_TILEGX_HW1_LAST:
3389 case R_TILEGX_HW2_LAST:
3390 case R_TILEGX_COPY:
3391 case R_TILEGX_GLOB_DAT:
3392 case R_TILEGX_JMP_SLOT:
3393 case R_TILEGX_RELATIVE:
3394 case R_TILEGX_BROFF_X1:
3395 case R_TILEGX_JUMPOFF_X1:
3396 case R_TILEGX_IMM8_X0:
3397 case R_TILEGX_IMM8_Y0:
3398 case R_TILEGX_IMM8_X1:
3399 case R_TILEGX_IMM8_Y1:
3400 case R_TILEGX_DEST_IMM8_X1:
3401 case R_TILEGX_MT_IMM14_X1:
3402 case R_TILEGX_MF_IMM14_X1:
3403 case R_TILEGX_MMSTART_X0:
3404 case R_TILEGX_MMEND_X0:
3405 case R_TILEGX_SHAMT_X0:
3406 case R_TILEGX_SHAMT_X1:
3407 case R_TILEGX_SHAMT_Y0:
3408 case R_TILEGX_SHAMT_Y1:
3409 case R_TILEGX_IMM16_X0_HW0:
3410 case R_TILEGX_IMM16_X1_HW0:
3411 case R_TILEGX_IMM16_X0_HW1:
3412 case R_TILEGX_IMM16_X1_HW1:
3413 case R_TILEGX_IMM16_X0_HW2:
3414 case R_TILEGX_IMM16_X1_HW2:
3415 case R_TILEGX_IMM16_X0_HW3:
3416 case R_TILEGX_IMM16_X1_HW3:
3417 case R_TILEGX_IMM16_X0_HW0_LAST:
3418 case R_TILEGX_IMM16_X1_HW0_LAST:
3419 case R_TILEGX_IMM16_X0_HW1_LAST:
3420 case R_TILEGX_IMM16_X1_HW1_LAST:
3421 case R_TILEGX_IMM16_X0_HW2_LAST:
3422 case R_TILEGX_IMM16_X1_HW2_LAST:
3423 if ((input_section->flags & SEC_ALLOC) == 0)
3424 break;
3425
3426 if ((bfd_link_pic (info)
3427 && (h == NULL
3428 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3429 && !resolved_to_zero)
3430 || h->root.type != bfd_link_hash_undefweak)
3431 && (! howto->pc_relative
3432 || !SYMBOL_CALLS_LOCAL (info, h)))
3433 || (!bfd_link_pic (info)
3434 && h != NULL
3435 && h->dynindx != -1
3436 && !h->non_got_ref
3437 && ((h->def_dynamic
3438 && !h->def_regular)
3439 || h->root.type == bfd_link_hash_undefweak
3440 || h->root.type == bfd_link_hash_undefined)))
3441 {
3442 Elf_Internal_Rela outrel;
3443 bfd_boolean skip, relocate = FALSE;
3444
3445 /* When generating a shared object, these relocations
3446 are copied into the output file to be resolved at run
3447 time. */
3448
3449 BFD_ASSERT (sreloc != NULL);
3450
3451 skip = FALSE;
3452
3453 outrel.r_offset =
3454 _bfd_elf_section_offset (output_bfd, info, input_section,
3455 rel->r_offset);
3456 if (outrel.r_offset == (bfd_vma) -1)
3457 skip = TRUE;
3458 else if (outrel.r_offset == (bfd_vma) -2)
3459 skip = TRUE, relocate = TRUE;
3460 outrel.r_offset += (input_section->output_section->vma
3461 + input_section->output_offset);
3462
3463 switch (r_type)
3464 {
3465 case R_TILEGX_64_PCREL:
3466 case R_TILEGX_32_PCREL:
3467 case R_TILEGX_16_PCREL:
3468 case R_TILEGX_8_PCREL:
3469 /* If the symbol is not dynamic, we should not keep
3470 a dynamic relocation. But an .rela.* slot has been
3471 allocated for it, output R_TILEGX_NONE.
3472 FIXME: Add code tracking needed dynamic relocs as
3473 e.g. i386 has. */
3474 if (h->dynindx == -1)
3475 skip = TRUE, relocate = TRUE;
3476 break;
3477 }
3478
3479 if (skip)
3480 memset (&outrel, 0, sizeof outrel);
3481 /* h->dynindx may be -1 if the symbol was marked to
3482 become local. */
3483 else if (h != NULL &&
3484 h->dynindx != -1
3485 && (! is_plt
3486 || !bfd_link_pic (info)
3487 || !SYMBOLIC_BIND (info, h)
3488 || !h->def_regular))
3489 {
3490 BFD_ASSERT (h->dynindx != -1);
3491 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3492 outrel.r_addend = rel->r_addend;
3493 }
3494 else
3495 {
3496 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3497 {
3498 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3499 R_TILEGX_RELATIVE);
3500 outrel.r_addend = relocation + rel->r_addend;
3501 }
3502 else
3503 {
3504 long indx;
3505
3506 outrel.r_addend = relocation + rel->r_addend;
3507
3508 if (is_plt)
3509 sec = htab->elf.splt;
3510
3511 if (bfd_is_abs_section (sec))
3512 indx = 0;
3513 else if (sec == NULL || sec->owner == NULL)
3514 {
3515 bfd_set_error (bfd_error_bad_value);
3516 return FALSE;
3517 }
3518 else
3519 {
3520 asection *osec;
3521
3522 /* We are turning this relocation into one
3523 against a section symbol. It would be
3524 proper to subtract the symbol's value,
3525 osec->vma, from the emitted reloc addend,
3526 but ld.so expects buggy relocs. */
3527 osec = sec->output_section;
3528 indx = elf_section_data (osec)->dynindx;
3529
3530 if (indx == 0)
3531 {
3532 osec = htab->elf.text_index_section;
3533 indx = elf_section_data (osec)->dynindx;
3534 }
3535
3536 /* FIXME: we really should be able to link non-pic
3537 shared libraries. */
3538 if (indx == 0)
3539 {
3540 BFD_FAIL ();
3541 _bfd_error_handler
3542 (_("%pB: probably compiled without -fPIC?"),
3543 input_bfd);
3544 bfd_set_error (bfd_error_bad_value);
3545 return FALSE;
3546 }
3547 }
3548
3549 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3550 r_type);
3551 }
3552 }
3553
3554 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3555
3556 /* This reloc will be computed at runtime, so there's no
3557 need to do anything now. */
3558 if (! relocate)
3559 continue;
3560 }
3561 break;
3562
3563 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3564 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3565 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3566 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3567 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3568 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3569 if (!bfd_link_executable (info))
3570 {
3571 Elf_Internal_Rela outrel;
3572 bfd_boolean skip;
3573
3574 BFD_ASSERT (sreloc != NULL);
3575 skip = FALSE;
3576 outrel.r_offset =
3577 _bfd_elf_section_offset (output_bfd, info, input_section,
3578 rel->r_offset);
3579 if (outrel.r_offset == (bfd_vma) -1)
3580 skip = TRUE;
3581 else if (outrel.r_offset == (bfd_vma) -2)
3582 skip = TRUE;
3583 outrel.r_offset += (input_section->output_section->vma
3584 + input_section->output_offset);
3585 if (skip)
3586 memset (&outrel, 0, sizeof outrel);
3587 else
3588 {
3589 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3590 outrel.r_addend = relocation - dtpoff_base (info)
3591 + rel->r_addend;
3592 }
3593
3594 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3595 continue;
3596 }
3597 relocation = tpoff (info, relocation);
3598 break;
3599
3600 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3601 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3602 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3603 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3604 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3605 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3606 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3607 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3608 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3609 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3610 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3611 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3612 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3613 input_section->sec_flg0);
3614 tls_type = GOT_UNKNOWN;
3615 if (h == NULL && local_got_offsets)
3616 tls_type =
3617 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3618 else if (h != NULL)
3619 {
3620 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3621 if (bfd_link_executable (info)
3622 && h->dynindx == -1
3623 && tls_type == GOT_TLS_IE)
3624 r_type = (!input_section->sec_flg0
3625 ? tilegx_tls_translate_to_le (r_type)
3626 : tilegx_tls_translate_to_ie (r_type));
3627 }
3628
3629 if (tls_type == GOT_TLS_IE)
3630 r_type = tilegx_tls_translate_to_ie (r_type);
3631
3632 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3633 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3634 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3635 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3636 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3637 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3638 {
3639 relocation = tpoff (info, relocation);
3640 break;
3641 }
3642
3643 if (h != NULL)
3644 {
3645 off = h->got.offset;
3646 h->got.offset |= 1;
3647 }
3648 else
3649 {
3650 BFD_ASSERT (local_got_offsets != NULL);
3651 off = local_got_offsets[r_symndx];
3652 local_got_offsets[r_symndx] |= 1;
3653 }
3654
3655 if (htab->elf.sgot == NULL)
3656 abort ();
3657
3658 if ((off & 1) != 0)
3659 off &= ~1;
3660 else
3661 {
3662 Elf_Internal_Rela outrel;
3663 int indx = 0;
3664 bfd_boolean need_relocs = FALSE;
3665
3666 if (htab->elf.srelgot == NULL)
3667 abort ();
3668
3669 if (h != NULL)
3670 {
3671 bfd_boolean dyn;
3672 dyn = htab->elf.dynamic_sections_created;
3673
3674 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3675 bfd_link_pic (info),
3676 h)
3677 && (!bfd_link_pic (info)
3678 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3679 {
3680 indx = h->dynindx;
3681 }
3682 }
3683
3684 /* The GOT entries have not been initialized yet. Do it
3685 now, and emit any relocations. */
3686 if ((bfd_link_pic (info) || indx != 0)
3687 && (h == NULL
3688 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3689 || h->root.type != bfd_link_hash_undefweak))
3690 need_relocs = TRUE;
3691
3692 switch (r_type)
3693 {
3694 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3695 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3696 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3697 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3698 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3699 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3700 if (need_relocs) {
3701 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3702 htab->elf.sgot->contents + off);
3703 outrel.r_offset = (htab->elf.sgot->output_section->vma
3704 + htab->elf.sgot->output_offset + off);
3705 outrel.r_addend = 0;
3706 if (indx == 0)
3707 outrel.r_addend = relocation - dtpoff_base (info);
3708 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3709 TILEGX_ELF_TPOFF_RELOC (htab));
3710 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3711 } else {
3712 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3713 tpoff (info, relocation),
3714 htab->elf.sgot->contents + off);
3715 }
3716 break;
3717
3718 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3719 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3720 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3721 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3722 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3723 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3724 if (need_relocs) {
3725 outrel.r_offset = (htab->elf.sgot->output_section->vma
3726 + htab->elf.sgot->output_offset + off);
3727 outrel.r_addend = 0;
3728 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3729 TILEGX_ELF_DTPMOD_RELOC (htab));
3730 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3731 htab->elf.sgot->contents + off);
3732 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3733 if (indx == 0)
3734 {
3735 BFD_ASSERT (! unresolved_reloc);
3736 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3737 relocation - dtpoff_base (info),
3738 (htab->elf.sgot->contents + off +
3739 TILEGX_ELF_WORD_BYTES (htab)));
3740 }
3741 else
3742 {
3743 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3744 (htab->elf.sgot->contents + off +
3745 TILEGX_ELF_WORD_BYTES (htab)));
3746 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3747 TILEGX_ELF_DTPOFF_RELOC (htab));
3748 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3749 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3750 }
3751 }
3752
3753 else {
3754 /* If we are not emitting relocations for a
3755 general dynamic reference, then we must be in a
3756 static link or an executable link with the
3757 symbol binding locally. Mark it as belonging
3758 to module 1, the executable. */
3759 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3760 htab->elf.sgot->contents + off );
3761 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3762 relocation - dtpoff_base (info),
3763 htab->elf.sgot->contents + off +
3764 TILEGX_ELF_WORD_BYTES (htab));
3765 }
3766 break;
3767 }
3768 }
3769
3770 if (off >= (bfd_vma) -2)
3771 abort ();
3772
3773 relocation = off - got_base;
3774 unresolved_reloc = FALSE;
3775 howto = tilegx_elf_howto_table + r_type;
3776 break;
3777
3778 default:
3779 break;
3780 }
3781
3782 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3783 because such sections are not SEC_ALLOC and thus ld.so will
3784 not process them. */
3785 if (unresolved_reloc
3786 && !((input_section->flags & SEC_DEBUGGING) != 0
3787 && h->def_dynamic)
3788 && _bfd_elf_section_offset (output_bfd, info, input_section,
3789 rel->r_offset) != (bfd_vma) -1)
3790 _bfd_error_handler
3791 /* xgettext:c-format */
3792 (_("%pB(%pA+%#" PRIx64 "): "
3793 "unresolvable %s relocation against symbol `%s'"),
3794 input_bfd,
3795 input_section,
3796 (uint64_t) rel->r_offset,
3797 howto->name,
3798 h->root.root.string);
3799
3800 r = bfd_reloc_continue;
3801
3802 /* Get the operand creation function, if any. */
3803 create_func = reloc_to_create_func[r_type];
3804 if (create_func == NULL)
3805 {
3806 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3807 contents, rel->r_offset,
3808 relocation, rel->r_addend);
3809 }
3810 else
3811 {
3812 if (howto->pc_relative)
3813 {
3814 relocation -=
3815 input_section->output_section->vma + input_section->output_offset;
3816 if (howto->pcrel_offset)
3817 relocation -= rel->r_offset;
3818 }
3819
3820 bfd_byte *data;
3821
3822 /* Add the relocation addend if any to the final target value */
3823 relocation += rel->r_addend;
3824
3825 /* Do basic range checking */
3826 r = bfd_check_overflow (howto->complain_on_overflow,
3827 howto->bitsize,
3828 howto->rightshift,
3829 TILEGX_ELF_WORD_BYTES (htab) * 8,
3830 relocation);
3831
3832 /*
3833 * Write the relocated value out into the raw section data.
3834 * Don't put a relocation out in the .rela section.
3835 */
3836 tilegx_bundle_bits mask = create_func(-1);
3837 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3838
3839 /* Only touch bytes while the mask is not 0, so we
3840 don't write to out of bounds memory if this is actually
3841 a 16-bit switch instruction. */
3842 for (data = contents + rel->r_offset; mask != 0; data++)
3843 {
3844 bfd_byte byte_mask = (bfd_byte)mask;
3845 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3846 mask >>= 8;
3847 value >>= 8;
3848 }
3849 }
3850
3851 if (r != bfd_reloc_ok)
3852 {
3853 const char *msg = NULL;
3854
3855 switch (r)
3856 {
3857 case bfd_reloc_overflow:
3858 (*info->callbacks->reloc_overflow)
3859 (info, (h ? &h->root : NULL), name, howto->name,
3860 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3861 break;
3862
3863 case bfd_reloc_undefined:
3864 (*info->callbacks->undefined_symbol)
3865 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3866 break;
3867
3868 case bfd_reloc_outofrange:
3869 msg = _("internal error: out of range error");
3870 break;
3871
3872 case bfd_reloc_notsupported:
3873 msg = _("internal error: unsupported relocation error");
3874 break;
3875
3876 case bfd_reloc_dangerous:
3877 msg = _("internal error: dangerous relocation");
3878 break;
3879
3880 default:
3881 msg = _("internal error: unknown error");
3882 break;
3883 }
3884
3885 if (msg)
3886 (*info->callbacks->warning) (info, msg, name, input_bfd,
3887 input_section, rel->r_offset);
3888 }
3889 }
3890
3891 return TRUE;
3892 }
3893
3894 /* Finish up dynamic symbol handling. We set the contents of various
3895 dynamic sections here. */
3896
3897 bfd_boolean
3898 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
3899 struct bfd_link_info *info,
3900 struct elf_link_hash_entry *h,
3901 Elf_Internal_Sym *sym)
3902 {
3903 struct tilegx_elf_link_hash_table *htab;
3904
3905 htab = tilegx_elf_hash_table (info);
3906 BFD_ASSERT (htab != NULL);
3907
3908 if (h->plt.offset != (bfd_vma) -1)
3909 {
3910 asection *splt;
3911 asection *srela;
3912 asection *sgotplt;
3913 Elf_Internal_Rela rela;
3914 bfd_byte *loc;
3915 bfd_vma r_offset;
3916 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
3917
3918
3919 int rela_index;
3920
3921 /* This symbol has an entry in the PLT. Set it up. */
3922
3923 BFD_ASSERT (h->dynindx != -1);
3924
3925 splt = htab->elf.splt;
3926 srela = htab->elf.srelplt;
3927 sgotplt = htab->elf.sgotplt;
3928
3929 if (splt == NULL || srela == NULL)
3930 abort ();
3931
3932 /* Fill in the entry in the procedure linkage table. */
3933 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
3934 h->plt.offset, &r_offset);
3935
3936 /* Fill in the entry in the global offset table, which initially points
3937 to the beginning of the plt. */
3938 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3939 splt->output_section->vma + splt->output_offset,
3940 sgotplt->contents + r_offset);
3941
3942 /* Fill in the entry in the .rela.plt section. */
3943 rela.r_offset = (sgotplt->output_section->vma
3944 + sgotplt->output_offset
3945 + r_offset);
3946 rela.r_addend = 0;
3947 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
3948
3949 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
3950 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3951
3952 if (!h->def_regular)
3953 {
3954 /* Mark the symbol as undefined, rather than as defined in
3955 the .plt section. Leave the value alone. */
3956 sym->st_shndx = SHN_UNDEF;
3957 /* If the symbol is weak, we do need to clear the value.
3958 Otherwise, the PLT entry would provide a definition for
3959 the symbol even if the symbol wasn't defined anywhere,
3960 and so the symbol would never be NULL. */
3961 if (!h->ref_regular_nonweak)
3962 sym->st_value = 0;
3963 }
3964 }
3965
3966 if (h->got.offset != (bfd_vma) -1
3967 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3968 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3969 {
3970 asection *sgot;
3971 asection *srela;
3972 Elf_Internal_Rela rela;
3973
3974 /* This symbol has an entry in the GOT. Set it up. */
3975
3976 sgot = htab->elf.sgot;
3977 srela = htab->elf.srelgot;
3978 BFD_ASSERT (sgot != NULL && srela != NULL);
3979
3980 rela.r_offset = (sgot->output_section->vma
3981 + sgot->output_offset
3982 + (h->got.offset &~ (bfd_vma) 1));
3983
3984 /* If this is a -Bsymbolic link, and the symbol is defined
3985 locally, we just want to emit a RELATIVE reloc. Likewise if
3986 the symbol was forced to be local because of a version file.
3987 The entry in the global offset table will already have been
3988 initialized in the relocate_section function. */
3989 if (bfd_link_pic (info)
3990 && (info->symbolic || h->dynindx == -1)
3991 && h->def_regular)
3992 {
3993 asection *sec = h->root.u.def.section;
3994 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3995 rela.r_addend = (h->root.u.def.value
3996 + sec->output_section->vma
3997 + sec->output_offset);
3998 }
3999 else
4000 {
4001 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4002 rela.r_addend = 0;
4003 }
4004
4005 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4006 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4007 tilegx_elf_append_rela (output_bfd, srela, &rela);
4008 }
4009
4010 if (h->needs_copy)
4011 {
4012 asection *s;
4013 Elf_Internal_Rela rela;
4014
4015 /* This symbols needs a copy reloc. Set it up. */
4016 BFD_ASSERT (h->dynindx != -1);
4017
4018 if (h->root.u.def.section == htab->elf.sdynrelro)
4019 s = htab->elf.sreldynrelro;
4020 else
4021 s = htab->elf.srelbss;
4022 BFD_ASSERT (s != NULL);
4023
4024 rela.r_offset = (h->root.u.def.value
4025 + h->root.u.def.section->output_section->vma
4026 + h->root.u.def.section->output_offset);
4027 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4028 rela.r_addend = 0;
4029 tilegx_elf_append_rela (output_bfd, s, &rela);
4030 }
4031
4032 /* Mark some specially defined symbols as absolute. */
4033 if (h == htab->elf.hdynamic
4034 || (h == htab->elf.hgot || h == htab->elf.hplt))
4035 sym->st_shndx = SHN_ABS;
4036
4037 return TRUE;
4038 }
4039
4040 /* Finish up the dynamic sections. */
4041
4042 static bfd_boolean
4043 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4044 bfd *dynobj, asection *sdyn,
4045 asection *splt ATTRIBUTE_UNUSED)
4046 {
4047 struct tilegx_elf_link_hash_table *htab;
4048 const struct elf_backend_data *bed;
4049 bfd_byte *dyncon, *dynconend;
4050 size_t dynsize;
4051
4052 htab = tilegx_elf_hash_table (info);
4053 BFD_ASSERT (htab != NULL);
4054 bed = get_elf_backend_data (output_bfd);
4055 dynsize = bed->s->sizeof_dyn;
4056 dynconend = sdyn->contents + sdyn->size;
4057
4058 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4059 {
4060 Elf_Internal_Dyn dyn;
4061 asection *s;
4062
4063 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4064
4065 switch (dyn.d_tag)
4066 {
4067 case DT_PLTGOT:
4068 s = htab->elf.sgotplt;
4069 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4070 break;
4071 case DT_JMPREL:
4072 s = htab->elf.srelplt;
4073 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4074 break;
4075 case DT_PLTRELSZ:
4076 s = htab->elf.srelplt;
4077 dyn.d_un.d_val = s->size;
4078 break;
4079 default:
4080 continue;
4081 }
4082
4083 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4084 }
4085 return TRUE;
4086 }
4087
4088 bfd_boolean
4089 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4090 struct bfd_link_info *info)
4091 {
4092 bfd *dynobj;
4093 asection *sdyn;
4094 struct tilegx_elf_link_hash_table *htab;
4095 size_t pad_size;
4096
4097 htab = tilegx_elf_hash_table (info);
4098 BFD_ASSERT (htab != NULL);
4099 dynobj = htab->elf.dynobj;
4100
4101 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4102
4103 if (elf_hash_table (info)->dynamic_sections_created)
4104 {
4105 asection *splt;
4106 bfd_boolean ret;
4107
4108 splt = htab->elf.splt;
4109 BFD_ASSERT (splt != NULL && sdyn != NULL);
4110
4111 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4112
4113 if (!ret)
4114 return ret;
4115
4116 /* Fill in the head and tail entries in the procedure linkage table. */
4117 if (splt->size > 0)
4118 {
4119 memcpy (splt->contents,
4120 ABI_64_P (output_bfd) ?
4121 tilegx64_plt0_entry : tilegx32_plt0_entry,
4122 PLT_HEADER_SIZE);
4123
4124 memcpy (splt->contents + splt->size
4125 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
4126 ABI_64_P (output_bfd) ?
4127 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4128 PLT_TAIL_SIZE);
4129 /* Add padding so that the plt section is a multiple of its
4130 entry size. */
4131 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4132 memset (splt->contents + splt->size - pad_size, 0, pad_size);
4133
4134 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4135 = PLT_ENTRY_SIZE;
4136 }
4137 }
4138
4139 if (htab->elf.sgotplt)
4140 {
4141 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4142 {
4143 _bfd_error_handler
4144 (_("discarded output section: `%pA'"), htab->elf.sgotplt);
4145 return FALSE;
4146 }
4147
4148 if (htab->elf.sgotplt->size > 0)
4149 {
4150 /* Write the first two entries in .got.plt, needed for the dynamic
4151 linker. */
4152 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4153 htab->elf.sgotplt->contents);
4154 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4155 htab->elf.sgotplt->contents
4156 + GOT_ENTRY_SIZE (htab));
4157
4158 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4159 GOT_ENTRY_SIZE (htab);
4160 }
4161 }
4162
4163 if (htab->elf.sgot)
4164 {
4165 if (htab->elf.sgot->size > 0)
4166 {
4167 /* Set the first entry in the global offset table to the address of
4168 the dynamic section. */
4169 bfd_vma val = (sdyn ?
4170 sdyn->output_section->vma + sdyn->output_offset :
4171 0);
4172 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4173 htab->elf.sgot->contents);
4174
4175 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4176 GOT_ENTRY_SIZE (htab);
4177 }
4178 }
4179
4180 return TRUE;
4181 }
4182
4183 \f
4184
4185 /* Return address for Ith PLT stub in section PLT, for relocation REL
4186 or (bfd_vma) -1 if it should not be included. */
4187
4188 bfd_vma
4189 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4190 const arelent *rel ATTRIBUTE_UNUSED)
4191 {
4192 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4193 }
4194
4195 enum elf_reloc_type_class
4196 tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4197 const asection *rel_sec ATTRIBUTE_UNUSED,
4198 const Elf_Internal_Rela *rela)
4199 {
4200 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4201 {
4202 case R_TILEGX_RELATIVE:
4203 return reloc_class_relative;
4204 case R_TILEGX_JMP_SLOT:
4205 return reloc_class_plt;
4206 case R_TILEGX_COPY:
4207 return reloc_class_copy;
4208 default:
4209 return reloc_class_normal;
4210 }
4211 }
4212
4213 int
4214 tilegx_additional_program_headers (bfd *abfd,
4215 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4216 {
4217 /* Each .intrpt section specified by the user adds another PT_LOAD
4218 header since the sections are discontiguous. */
4219 static const char intrpt_sections[4][9] =
4220 {
4221 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4222 };
4223 int count = 0;
4224 int i;
4225
4226 for (i = 0; i < 4; i++)
4227 {
4228 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4229 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4230 ++count;
4231 }
4232
4233 /* Add four "padding" headers in to leave room in case a custom linker
4234 script does something fancy. Otherwise ld complains that it ran
4235 out of program headers and refuses to link. */
4236 count += 4;
4237
4238 return count;
4239 }
4240
4241
4242 bfd_boolean
4243 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4244 {
4245 bfd *obfd = info->output_bfd;
4246 const char *targ1 = bfd_get_target (ibfd);
4247 const char *targ2 = bfd_get_target (obfd);
4248
4249 if (strcmp (targ1, targ2) != 0)
4250 {
4251 _bfd_error_handler
4252 /* xgettext:c-format */
4253 (_("%pB: cannot link together %s and %s objects"),
4254 ibfd, targ1, targ2);
4255 bfd_set_error (bfd_error_bad_value);
4256 return FALSE;
4257 }
4258
4259 return TRUE;
4260 }
GDB Binutils - Deliverables
This page took 0.203484 seconds and 4 git commands to generate.