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Put .dynbss and .rel.bss shortcuts in main elf hash table
[deliverable/binutils-gdb.git] / bfd / elfxx-tilegx.c
1 /* TILE-Gx-specific support for ELF.
2 Copyright (C) 2011-2016 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 /* The TILE-Gx linker needs to keep track of the number of relocs that it
783 decides to copy as dynamic relocs in check_relocs for each symbol.
784 This is so that it can later discard them if they are found to be
785 unnecessary. We store the information in a field extending the
786 regular ELF linker hash table. */
787
788 struct tilegx_elf_dyn_relocs
789 {
790 struct tilegx_elf_dyn_relocs *next;
791
792 /* The input section of the reloc. */
793 asection *sec;
794
795 /* Total number of relocs copied for the input section. */
796 bfd_size_type count;
797
798 /* Number of pc-relative relocs copied for the input section. */
799 bfd_size_type pc_count;
800 };
801
802 /* TILEGX ELF linker hash entry. */
803
804 struct tilegx_elf_link_hash_entry
805 {
806 struct elf_link_hash_entry elf;
807
808 /* Track dynamic relocs copied for this symbol. */
809 struct tilegx_elf_dyn_relocs *dyn_relocs;
810
811 #define GOT_UNKNOWN 0
812 #define GOT_NORMAL 1
813 #define GOT_TLS_GD 2
814 #define GOT_TLS_IE 4
815 unsigned char tls_type;
816 };
817
818 #define tilegx_elf_hash_entry(ent) \
819 ((struct tilegx_elf_link_hash_entry *)(ent))
820
821 struct _bfd_tilegx_elf_obj_tdata
822 {
823 struct elf_obj_tdata root;
824
825 /* tls_type for each local got entry. */
826 char *local_got_tls_type;
827 };
828
829 #define _bfd_tilegx_elf_tdata(abfd) \
830 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
831
832 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
833 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
834
835 #define is_tilegx_elf(bfd) \
836 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
837 && elf_tdata (bfd) != NULL \
838 && elf_object_id (bfd) == TILEGX_ELF_DATA)
839
840 #include "elf/common.h"
841 #include "elf/internal.h"
842
843 struct tilegx_elf_link_hash_table
844 {
845 struct elf_link_hash_table elf;
846
847 int bytes_per_word;
848 int word_align_power;
849 int bytes_per_rela;
850 int dtpmod_reloc;
851 int dtpoff_reloc;
852 int tpoff_reloc;
853 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
854 bfd_vma (*r_symndx) (bfd_vma);
855 void (*put_word) (bfd *, bfd_vma, void *);
856 const char *dynamic_interpreter;
857
858 /* Whether LE transition has been disabled for some of the
859 sections. */
860 bfd_boolean disable_le_transition;
861
862 /* Small local sym to section mapping cache. */
863 struct sym_cache sym_cache;
864 };
865
866
867 /* Get the Tile ELF linker hash table from a link_info structure. */
868 #define tilegx_elf_hash_table(p) \
869 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
870 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
871
872 #ifdef BFD64
873 static bfd_vma
874 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
875 bfd_vma rel_index,
876 bfd_vma type)
877 {
878 return ELF64_R_INFO (rel_index, type);
879 }
880
881 static bfd_vma
882 tilegx_elf_r_symndx_64 (bfd_vma r_info)
883 {
884 return ELF64_R_SYM (r_info);
885 }
886
887 static void
888 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
889 {
890 bfd_put_64 (abfd, val, ptr);
891 }
892 #endif /* BFD64 */
893
894 static bfd_vma
895 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
896 bfd_vma rel_index,
897 bfd_vma type)
898 {
899 return ELF32_R_INFO (rel_index, type);
900 }
901
902 static bfd_vma
903 tilegx_elf_r_symndx_32 (bfd_vma r_info)
904 {
905 return ELF32_R_SYM (r_info);
906 }
907
908 static void
909 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
910 {
911 bfd_put_32 (abfd, val, ptr);
912 }
913
914 reloc_howto_type *
915 tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
916 bfd_reloc_code_real_type code)
917 {
918 unsigned int i;
919
920 for (i = ARRAY_SIZE (tilegx_reloc_map); i--;)
921 {
922 const reloc_map * entry;
923
924 entry = tilegx_reloc_map + i;
925
926 if (entry->bfd_reloc_val == code)
927 return entry->table + (entry->tilegx_reloc_val
928 - entry->table[0].type);
929 }
930
931 return NULL;
932 }
933
934 reloc_howto_type *
935 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
936 const char *r_name)
937 {
938 unsigned int i;
939
940 for (i = 0;
941 i < (sizeof (tilegx_elf_howto_table)
942 / sizeof (tilegx_elf_howto_table[0]));
943 i++)
944 if (tilegx_elf_howto_table[i].name != NULL
945 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
946 return &tilegx_elf_howto_table[i];
947
948 return NULL;
949 }
950
951 void
952 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
953 arelent *cache_ptr,
954 Elf_Internal_Rela *dst)
955 {
956 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
957
958 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
959 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
960 else if (r_type - R_TILEGX_GNU_VTINHERIT
961 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
962 cache_ptr->howto
963 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
964 else
965 abort ();
966 }
967
968 typedef tilegx_bundle_bits (*tilegx_create_func)(int);
969
970 static const tilegx_create_func reloc_to_create_func[] =
971 {
972 /* The first twenty relocation types don't correspond to operands */
973 NULL,
974 NULL,
975 NULL,
976 NULL,
977 NULL,
978 NULL,
979 NULL,
980 NULL,
981 NULL,
982 NULL,
983 NULL,
984 NULL,
985 NULL,
986 NULL,
987 NULL,
988 NULL,
989 NULL,
990 NULL,
991 NULL,
992 NULL,
993
994 /* The remaining relocations are used for immediate operands */
995 create_BrOff_X1,
996 create_JumpOff_X1,
997 create_JumpOff_X1,
998 create_Imm8_X0,
999 create_Imm8_Y0,
1000 create_Imm8_X1,
1001 create_Imm8_Y1,
1002 create_Dest_Imm8_X1,
1003 create_MT_Imm14_X1,
1004 create_MF_Imm14_X1,
1005 create_BFStart_X0,
1006 create_BFEnd_X0,
1007 create_ShAmt_X0,
1008 create_ShAmt_X1,
1009 create_ShAmt_Y0,
1010 create_ShAmt_Y1,
1011 create_Imm16_X0,
1012 create_Imm16_X1,
1013 create_Imm16_X0,
1014 create_Imm16_X1,
1015 create_Imm16_X0,
1016 create_Imm16_X1,
1017 create_Imm16_X0,
1018 create_Imm16_X1,
1019 create_Imm16_X0,
1020 create_Imm16_X1,
1021 create_Imm16_X0,
1022 create_Imm16_X1,
1023 create_Imm16_X0,
1024 create_Imm16_X1,
1025 create_Imm16_X0,
1026 create_Imm16_X1,
1027 create_Imm16_X0,
1028 create_Imm16_X1,
1029 create_Imm16_X0,
1030 create_Imm16_X1,
1031 create_Imm16_X0,
1032 create_Imm16_X1,
1033 create_Imm16_X0,
1034 create_Imm16_X1,
1035 create_Imm16_X0,
1036 create_Imm16_X1,
1037 create_Imm16_X0,
1038 create_Imm16_X1,
1039 create_Imm16_X0,
1040 create_Imm16_X1,
1041 create_Imm16_X0,
1042 create_Imm16_X1,
1043 create_Imm16_X0,
1044 create_Imm16_X1,
1045 create_Imm16_X0,
1046 create_Imm16_X1,
1047 create_Imm16_X0,
1048 create_Imm16_X1,
1049 create_Imm16_X0,
1050 create_Imm16_X1,
1051 create_Imm16_X0,
1052 create_Imm16_X1,
1053 create_Imm16_X0,
1054 create_Imm16_X1,
1055 create_Imm16_X0,
1056 create_Imm16_X1,
1057 create_Imm16_X0,
1058 create_Imm16_X1,
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 NULL,
1066 NULL,
1067 create_Imm16_X0,
1068 create_Imm16_X1,
1069 create_Imm16_X0,
1070 create_Imm16_X1,
1071 create_Imm16_X0,
1072 create_Imm16_X1,
1073 create_Imm16_X0,
1074 create_Imm16_X1,
1075 create_Imm16_X0,
1076 create_Imm16_X1,
1077 create_Imm16_X0,
1078 create_Imm16_X1,
1079 };
1080
1081 static void
1082 tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1083 {
1084 const struct elf_backend_data *bed;
1085 bfd_byte *loc;
1086
1087 bed = get_elf_backend_data (abfd);
1088 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1089 bed->s->swap_reloca_out (abfd, rel, loc);
1090 }
1091
1092 /* PLT/GOT stuff */
1093
1094 /* The procedure linkage table starts with the following header:
1095
1096 ld_add r28, r27, 8
1097 ld r27, r27
1098 {
1099 jr r27
1100 info 10 ## SP not offset, return PC in LR
1101 }
1102
1103 Subsequent entries are the following, jumping to the header at the end:
1104
1105 {
1106 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1107 lnk r26
1108 }
1109 1:
1110 {
1111 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1112 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1113 }
1114 {
1115 add r28, r26, r28
1116 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1117 }
1118 {
1119 add r27, r26, r27
1120 ld r28, r28
1121 info 10 ## SP not offset, return PC in LR
1122 }
1123 {
1124 shl16insli r29, zero, MY_PLT_INDEX
1125 jr r28
1126 }
1127
1128 This code sequence lets the code at at the start of the PLT determine
1129 which PLT entry was executed by examining 'r29'.
1130
1131 Note that MY_PLT_INDEX skips over the header entries, so the first
1132 actual jump table entry has index zero.
1133
1134 If the offset fits in 16 bits,
1135
1136 lnk r26
1137 1:
1138 {
1139 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1140 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1141 }
1142 {
1143 shl16insli r29, zero, MY_PLT_INDEX
1144 ld r28, r28
1145 }
1146 {
1147 add r27, r26, r27
1148 jr r28
1149 }
1150 info 10 ## SP not offset, return PC in LR
1151
1152 For the purpose of backtracing, the procedure linkage table ends with the
1153 following tail entry:
1154
1155 info 10 ## SP not offset, return PC in LR
1156
1157 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1158 the GOT being multiples of 4 instead of 8.
1159
1160 */
1161
1162 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1163 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1164 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1165
1166 #define PLT_HEADER_SIZE \
1167 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1168 #define PLT_ENTRY_SIZE \
1169 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1170 #define PLT_TAIL_SIZE \
1171 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1172
1173 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1174
1175 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1176
1177 static const bfd_byte
1178 tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1179 {
1180 0x00, 0x30, 0x48, 0x51,
1181 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1182 0x00, 0x30, 0xbc, 0x35,
1183 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1184 0xff, 0xaf, 0x30, 0x40,
1185 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1186 };
1187
1188 static const bfd_byte
1189 tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1190 {
1191 0xdc, 0x0f, 0x00, 0x10,
1192 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1193 0xdb, 0x0f, 0x00, 0x10,
1194 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1195 0x9c, 0xc6, 0x0d, 0xd0,
1196 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1197 0x9b, 0xb6, 0xc5, 0xad,
1198 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1199 0xdd, 0x0f, 0x00, 0x70,
1200 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1201 };
1202
1203 static const bfd_byte
1204 tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1205 {
1206 0x00, 0x30, 0x48, 0x51,
1207 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1208 0x9c, 0x06, 0x00, 0x90,
1209 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1210 0xdd, 0x0f, 0x00, 0x70,
1211 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1212 0x9b, 0xb6, 0x0d, 0x50,
1213 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1214 0x00, 0x30, 0x48, 0xd1,
1215 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1216 };
1217
1218 /* Reuse an existing info 10 bundle. */
1219 static const bfd_byte *const tilegx64_plt_tail_entry =
1220 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1221
1222 static const bfd_byte
1223 tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1224 {
1225 0x00, 0x30, 0x48, 0x51,
1226 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1227 0x00, 0x30, 0xbc, 0x35,
1228 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1229 0xff, 0xaf, 0x30, 0x40,
1230 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1231 };
1232
1233 static const bfd_byte
1234 tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1235 {
1236 0xdc, 0x0f, 0x00, 0x10,
1237 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1238 0xdb, 0x0f, 0x00, 0x10,
1239 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1240 0x9c, 0xc6, 0x0d, 0xd0,
1241 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1242 0x9b, 0xb6, 0xc5, 0xad,
1243 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1244 0xdd, 0x0f, 0x00, 0x70,
1245 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1246 };
1247
1248 static const bfd_byte
1249 tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1250 {
1251 0x00, 0x30, 0x48, 0x51,
1252 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1253 0x9c, 0x06, 0x00, 0x90,
1254 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1255 0xdd, 0x0f, 0x00, 0x70,
1256 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1257 0x9b, 0xb6, 0x0d, 0x50,
1258 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1259 0x00, 0x30, 0x48, 0xd1,
1260 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1261 };
1262
1263 /* Reuse an existing info 10 bundle. */
1264 static const bfd_byte *const tilegx32_plt_tail_entry =
1265 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1266
1267 static int
1268 tilegx_plt_entry_build (bfd *output_bfd,
1269 struct tilegx_elf_link_hash_table *htab,
1270 asection *splt, asection *sgotplt,
1271 bfd_vma offset, bfd_vma *r_offset)
1272 {
1273 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1274 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1275 + GOTPLT_HEADER_SIZE (htab));
1276 tilegx_bundle_bits *pc;
1277
1278 /* Compute the distance from the got entry to the lnk. */
1279 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1280 + sgotplt->output_offset
1281 + got_offset
1282 - splt->output_section->vma
1283 - splt->output_offset
1284 - offset
1285 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1286
1287 /* Compute the distance to GOTPLT[0]. */
1288 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1289
1290 /* Check whether we can use the short plt entry with 16-bit offset. */
1291 bfd_boolean short_plt_entry =
1292 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1293
1294 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1295 (ABI_64_P (output_bfd) ?
1296 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1297 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1298
1299 /* Copy the plt entry template. */
1300 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1301
1302 /* Write the immediate offsets. */
1303 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1304
1305 if (short_plt_entry)
1306 {
1307 /* { lnk r28 } */
1308 pc++;
1309
1310 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1311 *pc++ |= create_Imm16_X0 (dist_got_entry)
1312 | create_Imm16_X1 (dist_got0);
1313
1314 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1315 *pc++ |= create_Imm16_X0 (plt_index);
1316 }
1317 else
1318 {
1319 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1320 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1321
1322 /* { moveli r27, &GOTPLT[0] ;
1323 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1324 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1325 | create_Imm16_X1 (dist_got_entry);
1326
1327 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1328 *pc++ |= create_Imm16_X1 (dist_got0);
1329
1330 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1331 pc++;
1332
1333 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1334 *pc++ |= create_Imm16_X0 (plt_index);
1335 }
1336
1337 /* Set the relocation offset. */
1338 *r_offset = got_offset;
1339
1340 return plt_index;
1341 }
1342
1343 /* Create an entry in an TILEGX ELF linker hash table. */
1344
1345 static struct bfd_hash_entry *
1346 link_hash_newfunc (struct bfd_hash_entry *entry,
1347 struct bfd_hash_table *table, const char *string)
1348 {
1349 /* Allocate the structure if it has not already been allocated by a
1350 subclass. */
1351 if (entry == NULL)
1352 {
1353 entry =
1354 bfd_hash_allocate (table,
1355 sizeof (struct tilegx_elf_link_hash_entry));
1356 if (entry == NULL)
1357 return entry;
1358 }
1359
1360 /* Call the allocation method of the superclass. */
1361 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1362 if (entry != NULL)
1363 {
1364 struct tilegx_elf_link_hash_entry *eh;
1365
1366 eh = (struct tilegx_elf_link_hash_entry *) entry;
1367 eh->dyn_relocs = NULL;
1368 eh->tls_type = GOT_UNKNOWN;
1369 }
1370
1371 return entry;
1372 }
1373
1374 /* Create a TILEGX ELF linker hash table. */
1375
1376 struct bfd_link_hash_table *
1377 tilegx_elf_link_hash_table_create (bfd *abfd)
1378 {
1379 struct tilegx_elf_link_hash_table *ret;
1380 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1381
1382 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1383 if (ret == NULL)
1384 return NULL;
1385
1386 #ifdef BFD64
1387 if (ABI_64_P (abfd))
1388 {
1389 ret->bytes_per_word = 8;
1390 ret->word_align_power = 3;
1391 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1392 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1393 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1394 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1395 ret->r_info = tilegx_elf_r_info_64;
1396 ret->r_symndx = tilegx_elf_r_symndx_64;
1397 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1398 ret->put_word = tilegx_put_word_64;
1399 }
1400 else
1401 #endif
1402 {
1403 ret->bytes_per_word = 4;
1404 ret->word_align_power = 2;
1405 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1406 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1407 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1408 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1409 ret->r_info = tilegx_elf_r_info_32;
1410 ret->r_symndx = tilegx_elf_r_symndx_32;
1411 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1412 ret->put_word = tilegx_put_word_32;
1413 }
1414
1415 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1416 sizeof (struct tilegx_elf_link_hash_entry),
1417 TILEGX_ELF_DATA))
1418 {
1419 free (ret);
1420 return NULL;
1421 }
1422
1423 return &ret->elf.root;
1424 }
1425
1426 /* Create the .got section. */
1427
1428 static bfd_boolean
1429 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1430 {
1431 flagword flags;
1432 asection *s, *s_got;
1433 struct elf_link_hash_entry *h;
1434 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1435 struct elf_link_hash_table *htab = elf_hash_table (info);
1436
1437 /* This function may be called more than once. */
1438 if (htab->sgot != NULL)
1439 return TRUE;
1440
1441 flags = bed->dynamic_sec_flags;
1442
1443 s = bfd_make_section_anyway_with_flags (abfd,
1444 (bed->rela_plts_and_copies_p
1445 ? ".rela.got" : ".rel.got"),
1446 (bed->dynamic_sec_flags
1447 | SEC_READONLY));
1448 if (s == NULL
1449 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1450 return FALSE;
1451 htab->srelgot = s;
1452
1453 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1454 if (s == NULL
1455 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1456 return FALSE;
1457 htab->sgot = s;
1458
1459 /* The first bit of the global offset table is the header. */
1460 s->size += bed->got_header_size;
1461
1462 if (bed->want_got_plt)
1463 {
1464 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
1465 if (s == NULL
1466 || !bfd_set_section_alignment (abfd, s,
1467 bed->s->log_file_align))
1468 return FALSE;
1469 htab->sgotplt = s;
1470
1471 /* Reserve room for the header. */
1472 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1473 }
1474
1475 if (bed->want_got_sym)
1476 {
1477 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1478 section. We don't do this in the linker script because we don't want
1479 to define the symbol if we are not creating a global offset
1480 table. */
1481 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1482 "_GLOBAL_OFFSET_TABLE_");
1483 elf_hash_table (info)->hgot = h;
1484 if (h == NULL)
1485 return FALSE;
1486 }
1487
1488 return TRUE;
1489 }
1490
1491 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1492 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1493 hash table. */
1494
1495 bfd_boolean
1496 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1497 struct bfd_link_info *info)
1498 {
1499 if (!tilegx_elf_create_got_section (dynobj, info))
1500 return FALSE;
1501
1502 return _bfd_elf_create_dynamic_sections (dynobj, info);
1503 }
1504
1505 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1506
1507 void
1508 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1509 struct elf_link_hash_entry *dir,
1510 struct elf_link_hash_entry *ind)
1511 {
1512 struct tilegx_elf_link_hash_entry *edir, *eind;
1513
1514 edir = (struct tilegx_elf_link_hash_entry *) dir;
1515 eind = (struct tilegx_elf_link_hash_entry *) ind;
1516
1517 if (eind->dyn_relocs != NULL)
1518 {
1519 if (edir->dyn_relocs != NULL)
1520 {
1521 struct tilegx_elf_dyn_relocs **pp;
1522 struct tilegx_elf_dyn_relocs *p;
1523
1524 /* Add reloc counts against the indirect sym to the direct sym
1525 list. Merge any entries against the same section. */
1526 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1527 {
1528 struct tilegx_elf_dyn_relocs *q;
1529
1530 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1531 if (q->sec == p->sec)
1532 {
1533 q->pc_count += p->pc_count;
1534 q->count += p->count;
1535 *pp = p->next;
1536 break;
1537 }
1538 if (q == NULL)
1539 pp = &p->next;
1540 }
1541 *pp = edir->dyn_relocs;
1542 }
1543
1544 edir->dyn_relocs = eind->dyn_relocs;
1545 eind->dyn_relocs = NULL;
1546 }
1547
1548 if (ind->root.type == bfd_link_hash_indirect
1549 && dir->got.refcount <= 0)
1550 {
1551 edir->tls_type = eind->tls_type;
1552 eind->tls_type = GOT_UNKNOWN;
1553 }
1554 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1555 }
1556
1557 static int
1558 tilegx_tls_translate_to_le (int r_type)
1559 {
1560 switch (r_type)
1561 {
1562 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1563 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1564 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1565
1566 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1567 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1568 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1569
1570 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1571 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1572 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1573
1574 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1575 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1576 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1577
1578 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1579 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1580 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1581
1582 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1583 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1584 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1585 }
1586 return r_type;
1587 }
1588
1589 static int
1590 tilegx_tls_translate_to_ie (int r_type)
1591 {
1592 switch (r_type)
1593 {
1594 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1595 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1596 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1597
1598 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1599 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1600 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1601
1602 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1603 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1604 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1605
1606 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1607 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1608 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1609
1610 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1611 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1612 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1613
1614 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1615 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1616 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1617 }
1618 return r_type;
1619 }
1620
1621 static int
1622 tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1623 int is_local, bfd_boolean disable_le_transition)
1624 {
1625 if (bfd_link_pic (info))
1626 return r_type;
1627
1628 if (is_local && !disable_le_transition)
1629 return tilegx_tls_translate_to_le (r_type);
1630 else
1631 return tilegx_tls_translate_to_ie (r_type);
1632 }
1633
1634 /* Look through the relocs for a section during the first phase, and
1635 allocate space in the global offset table or procedure linkage
1636 table. */
1637
1638 bfd_boolean
1639 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1640 asection *sec, const Elf_Internal_Rela *relocs)
1641 {
1642 struct tilegx_elf_link_hash_table *htab;
1643 Elf_Internal_Shdr *symtab_hdr;
1644 struct elf_link_hash_entry **sym_hashes;
1645 const Elf_Internal_Rela *rel;
1646 const Elf_Internal_Rela *rel_end;
1647 asection *sreloc;
1648 int num_relocs;
1649 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
1650
1651 if (bfd_link_relocatable (info))
1652 return TRUE;
1653
1654 htab = tilegx_elf_hash_table (info);
1655 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1656 sym_hashes = elf_sym_hashes (abfd);
1657
1658 sreloc = NULL;
1659
1660 num_relocs = sec->reloc_count;
1661
1662 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1663
1664 if (htab->elf.dynobj == NULL)
1665 htab->elf.dynobj = abfd;
1666
1667 rel_end = relocs + num_relocs;
1668
1669 /* Check whether to do optimization to transform TLS GD/IE
1670 referehces to TLS LE. We disable it if we're linking with old
1671 TLS code sequences that do not support such optimization. Old
1672 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1673 no tls_add relocations. */
1674 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1675 {
1676 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1677 switch (r_type)
1678 {
1679 case R_TILEGX_TLS_GD_CALL:
1680 case R_TILEGX_TLS_IE_LOAD:
1681 has_tls_gd_or_ie = TRUE;
1682 break;
1683 case R_TILEGX_IMM8_X0_TLS_ADD:
1684 case R_TILEGX_IMM8_Y0_TLS_ADD:
1685 case R_TILEGX_IMM8_X1_TLS_ADD:
1686 case R_TILEGX_IMM8_Y1_TLS_ADD:
1687 has_tls_add = TRUE;
1688 break;
1689 }
1690 }
1691
1692 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1693 htab->disable_le_transition |= sec->sec_flg0;
1694
1695 for (rel = relocs; rel < rel_end; rel++)
1696 {
1697 unsigned int r_type;
1698 unsigned long r_symndx;
1699 struct elf_link_hash_entry *h;
1700 int tls_type;
1701
1702 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1703 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1704
1705 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1706 {
1707 /* xgettext:c-format */
1708 _bfd_error_handler (_("%B: bad symbol index: %d"),
1709 abfd, r_symndx);
1710 return FALSE;
1711 }
1712
1713 if (r_symndx < symtab_hdr->sh_info)
1714 h = NULL;
1715 else
1716 {
1717 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1718 while (h->root.type == bfd_link_hash_indirect
1719 || h->root.type == bfd_link_hash_warning)
1720 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1721
1722 /* PR15323, ref flags aren't set for references in the same
1723 object. */
1724 h->root.non_ir_ref = 1;
1725 }
1726
1727 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1728 sec->sec_flg0);
1729 switch (r_type)
1730 {
1731 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1732 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1733 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1734 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1735 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1736 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1737 if (bfd_link_pic (info))
1738 goto r_tilegx_plt32;
1739 break;
1740
1741 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1742 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1743 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1744 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1745 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1746 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1747 BFD_ASSERT (bfd_link_pic (info));
1748 tls_type = GOT_TLS_GD;
1749 goto have_got_reference;
1750
1751 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1752 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1753 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1754 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1755 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1756 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1757 tls_type = GOT_TLS_IE;
1758 if (bfd_link_pic (info))
1759 info->flags |= DF_STATIC_TLS;
1760 goto have_got_reference;
1761
1762 case R_TILEGX_IMM16_X0_HW0_GOT:
1763 case R_TILEGX_IMM16_X1_HW0_GOT:
1764 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1765 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1766 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1767 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1768 tls_type = GOT_NORMAL;
1769 /* Fall Through */
1770
1771 have_got_reference:
1772 /* This symbol requires a global offset table entry. */
1773 {
1774 int old_tls_type;
1775
1776 if (h != NULL)
1777 {
1778 h->got.refcount += 1;
1779 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1780 }
1781 else
1782 {
1783 bfd_signed_vma *local_got_refcounts;
1784
1785 /* This is a global offset table entry for a local symbol. */
1786 local_got_refcounts = elf_local_got_refcounts (abfd);
1787 if (local_got_refcounts == NULL)
1788 {
1789 bfd_size_type size;
1790
1791 size = symtab_hdr->sh_info;
1792 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1793 local_got_refcounts = ((bfd_signed_vma *)
1794 bfd_zalloc (abfd, size));
1795 if (local_got_refcounts == NULL)
1796 return FALSE;
1797 elf_local_got_refcounts (abfd) = local_got_refcounts;
1798 _bfd_tilegx_elf_local_got_tls_type (abfd)
1799 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1800 }
1801 local_got_refcounts[r_symndx] += 1;
1802 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1803 }
1804
1805 /* If a TLS symbol is accessed using IE at least once,
1806 there is no point to use dynamic model for it. */
1807 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1808 && (old_tls_type != GOT_TLS_GD
1809 || tls_type != GOT_TLS_IE))
1810 {
1811 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1812 tls_type = old_tls_type;
1813 else
1814 {
1815 _bfd_error_handler
1816 /* xgettext:c-format */
1817 (_("%B: `%s' accessed both as normal and thread local symbol"),
1818 abfd, h ? h->root.root.string : "<local>");
1819 return FALSE;
1820 }
1821 }
1822
1823 if (old_tls_type != tls_type)
1824 {
1825 if (h != NULL)
1826 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1827 else
1828 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1829 }
1830 }
1831
1832 if (htab->elf.sgot == NULL)
1833 {
1834 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1835 return FALSE;
1836 }
1837 break;
1838
1839 case R_TILEGX_TLS_GD_CALL:
1840 if (bfd_link_pic (info))
1841 {
1842 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1843 against __tls_get_addr. */
1844 struct bfd_link_hash_entry *bh = NULL;
1845 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1846 "__tls_get_addr", 0,
1847 bfd_und_section_ptr, 0,
1848 NULL, FALSE, FALSE,
1849 &bh))
1850 return FALSE;
1851 h = (struct elf_link_hash_entry *) bh;
1852 }
1853 else
1854 break;
1855 /* Fall through */
1856
1857 case R_TILEGX_JUMPOFF_X1_PLT:
1858 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1859 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1860 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1861 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1862 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1863 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1864 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1865 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1866 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1867 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1868 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1869 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1870 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1871 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
1872 /* This symbol requires a procedure linkage table entry. We
1873 actually build the entry in adjust_dynamic_symbol,
1874 because this might be a case of linking PIC code without
1875 linking in any dynamic objects, in which case we don't
1876 need to generate a procedure linkage table after all. */
1877
1878 if (h != NULL)
1879 {
1880 h->needs_plt = 1;
1881 h->plt.refcount += 1;
1882 }
1883 break;
1884
1885 case R_TILEGX_64_PCREL:
1886 case R_TILEGX_32_PCREL:
1887 case R_TILEGX_16_PCREL:
1888 case R_TILEGX_8_PCREL:
1889 case R_TILEGX_IMM16_X0_HW0_PCREL:
1890 case R_TILEGX_IMM16_X1_HW0_PCREL:
1891 case R_TILEGX_IMM16_X0_HW1_PCREL:
1892 case R_TILEGX_IMM16_X1_HW1_PCREL:
1893 case R_TILEGX_IMM16_X0_HW2_PCREL:
1894 case R_TILEGX_IMM16_X1_HW2_PCREL:
1895 case R_TILEGX_IMM16_X0_HW3_PCREL:
1896 case R_TILEGX_IMM16_X1_HW3_PCREL:
1897 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1898 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1899 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1900 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1901 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1902 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1903 if (h != NULL)
1904 h->non_got_ref = 1;
1905
1906 if (h != NULL
1907 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1908 break;
1909 /* Fall through. */
1910
1911 case R_TILEGX_64:
1912 case R_TILEGX_32:
1913 case R_TILEGX_16:
1914 case R_TILEGX_8:
1915 case R_TILEGX_HW0:
1916 case R_TILEGX_HW1:
1917 case R_TILEGX_HW2:
1918 case R_TILEGX_HW3:
1919 case R_TILEGX_HW0_LAST:
1920 case R_TILEGX_HW1_LAST:
1921 case R_TILEGX_HW2_LAST:
1922 case R_TILEGX_COPY:
1923 case R_TILEGX_GLOB_DAT:
1924 case R_TILEGX_JMP_SLOT:
1925 case R_TILEGX_RELATIVE:
1926 case R_TILEGX_BROFF_X1:
1927 case R_TILEGX_JUMPOFF_X1:
1928 case R_TILEGX_IMM8_X0:
1929 case R_TILEGX_IMM8_Y0:
1930 case R_TILEGX_IMM8_X1:
1931 case R_TILEGX_IMM8_Y1:
1932 case R_TILEGX_DEST_IMM8_X1:
1933 case R_TILEGX_MT_IMM14_X1:
1934 case R_TILEGX_MF_IMM14_X1:
1935 case R_TILEGX_MMSTART_X0:
1936 case R_TILEGX_MMEND_X0:
1937 case R_TILEGX_SHAMT_X0:
1938 case R_TILEGX_SHAMT_X1:
1939 case R_TILEGX_SHAMT_Y0:
1940 case R_TILEGX_SHAMT_Y1:
1941 case R_TILEGX_IMM16_X0_HW0:
1942 case R_TILEGX_IMM16_X1_HW0:
1943 case R_TILEGX_IMM16_X0_HW1:
1944 case R_TILEGX_IMM16_X1_HW1:
1945 case R_TILEGX_IMM16_X0_HW2:
1946 case R_TILEGX_IMM16_X1_HW2:
1947 case R_TILEGX_IMM16_X0_HW3:
1948 case R_TILEGX_IMM16_X1_HW3:
1949 case R_TILEGX_IMM16_X0_HW0_LAST:
1950 case R_TILEGX_IMM16_X1_HW0_LAST:
1951 case R_TILEGX_IMM16_X0_HW1_LAST:
1952 case R_TILEGX_IMM16_X1_HW1_LAST:
1953 case R_TILEGX_IMM16_X0_HW2_LAST:
1954 case R_TILEGX_IMM16_X1_HW2_LAST:
1955 if (h != NULL)
1956 h->non_got_ref = 1;
1957
1958 r_tilegx_plt32:
1959 if (h != NULL && !bfd_link_pic (info))
1960 {
1961 /* We may need a .plt entry if the function this reloc
1962 refers to is in a shared lib. */
1963 h->plt.refcount += 1;
1964 }
1965
1966 /* If we are creating a shared library, and this is a reloc
1967 against a global symbol, or a non PC relative reloc
1968 against a local symbol, then we need to copy the reloc
1969 into the shared library. However, if we are linking with
1970 -Bsymbolic, we do not need to copy a reloc against a
1971 global symbol which is defined in an object we are
1972 including in the link (i.e., DEF_REGULAR is set). At
1973 this point we have not seen all the input files, so it is
1974 possible that DEF_REGULAR is not set now but will be set
1975 later (it is never cleared). In case of a weak definition,
1976 DEF_REGULAR may be cleared later by a strong definition in
1977 a shared library. We account for that possibility below by
1978 storing information in the relocs_copied field of the hash
1979 table entry. A similar situation occurs when creating
1980 shared libraries and symbol visibility changes render the
1981 symbol local.
1982
1983 If on the other hand, we are creating an executable, we
1984 may need to keep relocations for symbols satisfied by a
1985 dynamic library if we manage to avoid copy relocs for the
1986 symbol. */
1987 if ((bfd_link_pic (info)
1988 && (sec->flags & SEC_ALLOC) != 0
1989 && (! tilegx_elf_howto_table[r_type].pc_relative
1990 || (h != NULL
1991 && (! info->symbolic
1992 || h->root.type == bfd_link_hash_defweak
1993 || !h->def_regular))))
1994 || (!bfd_link_pic (info)
1995 && (sec->flags & SEC_ALLOC) != 0
1996 && h != NULL
1997 && (h->root.type == bfd_link_hash_defweak
1998 || !h->def_regular)))
1999 {
2000 struct tilegx_elf_dyn_relocs *p;
2001 struct tilegx_elf_dyn_relocs **head;
2002
2003 /* When creating a shared object, we must copy these
2004 relocs into the output file. We create a reloc
2005 section in dynobj and make room for the reloc. */
2006 if (sreloc == NULL)
2007 {
2008 sreloc = _bfd_elf_make_dynamic_reloc_section
2009 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2010 /*rela?*/ TRUE);
2011
2012 if (sreloc == NULL)
2013 return FALSE;
2014 }
2015
2016 /* If this is a global symbol, we count the number of
2017 relocations we need for this symbol. */
2018 if (h != NULL)
2019 head =
2020 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2021 else
2022 {
2023 /* Track dynamic relocs needed for local syms too.
2024 We really need local syms available to do this
2025 easily. Oh well. */
2026
2027 asection *s;
2028 void *vpp;
2029 Elf_Internal_Sym *isym;
2030
2031 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2032 abfd, r_symndx);
2033 if (isym == NULL)
2034 return FALSE;
2035
2036 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2037 if (s == NULL)
2038 s = sec;
2039
2040 vpp = &elf_section_data (s)->local_dynrel;
2041 head = (struct tilegx_elf_dyn_relocs **) vpp;
2042 }
2043
2044 p = *head;
2045 if (p == NULL || p->sec != sec)
2046 {
2047 bfd_size_type amt = sizeof *p;
2048 p = ((struct tilegx_elf_dyn_relocs *)
2049 bfd_alloc (htab->elf.dynobj, amt));
2050 if (p == NULL)
2051 return FALSE;
2052 p->next = *head;
2053 *head = p;
2054 p->sec = sec;
2055 p->count = 0;
2056 p->pc_count = 0;
2057 }
2058
2059 p->count += 1;
2060 if (tilegx_elf_howto_table[r_type].pc_relative)
2061 p->pc_count += 1;
2062 }
2063
2064 break;
2065
2066 case R_TILEGX_GNU_VTINHERIT:
2067 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2068 return FALSE;
2069 break;
2070
2071 case R_TILEGX_GNU_VTENTRY:
2072 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2073 return FALSE;
2074 break;
2075
2076 default:
2077 break;
2078 }
2079 }
2080
2081 return TRUE;
2082 }
2083
2084 \f
2085 asection *
2086 tilegx_elf_gc_mark_hook (asection *sec,
2087 struct bfd_link_info *info,
2088 Elf_Internal_Rela *rel,
2089 struct elf_link_hash_entry *h,
2090 Elf_Internal_Sym *sym)
2091 {
2092 if (h != NULL)
2093 {
2094 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2095 {
2096 case R_TILEGX_GNU_VTINHERIT:
2097 case R_TILEGX_GNU_VTENTRY:
2098 return NULL;
2099 }
2100 }
2101
2102 /* FIXME: The test here, in check_relocs and in relocate_section
2103 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
2104 if (bfd_link_pic (info))
2105 {
2106 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2107 {
2108 case R_TILEGX_TLS_GD_CALL:
2109 /* This reloc implicitly references __tls_get_addr. We know
2110 another reloc will reference the same symbol as the one
2111 on this reloc, so the real symbol and section will be
2112 gc marked when processing the other reloc. That lets
2113 us handle __tls_get_addr here. */
2114 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
2115 FALSE, FALSE, TRUE);
2116 BFD_ASSERT (h != NULL);
2117 h->mark = 1;
2118 if (h->u.weakdef != NULL)
2119 h->u.weakdef->mark = 1;
2120 sym = NULL;
2121 }
2122 }
2123
2124 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2125 }
2126
2127 /* Update the got entry reference counts for the section being removed. */
2128 bfd_boolean
2129 tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
2130 asection *sec, const Elf_Internal_Rela *relocs)
2131 {
2132 struct tilegx_elf_link_hash_table *htab;
2133 Elf_Internal_Shdr *symtab_hdr;
2134 struct elf_link_hash_entry **sym_hashes;
2135 bfd_signed_vma *local_got_refcounts;
2136 const Elf_Internal_Rela *rel, *relend;
2137
2138 if (bfd_link_relocatable (info))
2139 return TRUE;
2140
2141 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
2142
2143 elf_section_data (sec)->local_dynrel = NULL;
2144
2145 htab = tilegx_elf_hash_table (info);
2146 BFD_ASSERT (htab != NULL);
2147 symtab_hdr = &elf_symtab_hdr (abfd);
2148 sym_hashes = elf_sym_hashes (abfd);
2149 local_got_refcounts = elf_local_got_refcounts (abfd);
2150
2151 relend = relocs + sec->reloc_count;
2152 for (rel = relocs; rel < relend; rel++)
2153 {
2154 unsigned long r_symndx;
2155 unsigned int r_type;
2156 struct elf_link_hash_entry *h = NULL;
2157
2158 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2159 if (r_symndx >= symtab_hdr->sh_info)
2160 {
2161 struct tilegx_elf_link_hash_entry *eh;
2162 struct tilegx_elf_dyn_relocs **pp;
2163 struct tilegx_elf_dyn_relocs *p;
2164
2165 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2166 while (h->root.type == bfd_link_hash_indirect
2167 || h->root.type == bfd_link_hash_warning)
2168 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2169 eh = (struct tilegx_elf_link_hash_entry *) h;
2170 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2171 if (p->sec == sec)
2172 {
2173 /* Everything must go for SEC. */
2174 *pp = p->next;
2175 break;
2176 }
2177 }
2178
2179 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2180 r_type = tilegx_elf_tls_transition (info, r_type, h != NULL,
2181 sec->sec_flg0);
2182 switch (r_type)
2183 {
2184 case R_TILEGX_IMM16_X0_HW0_GOT:
2185 case R_TILEGX_IMM16_X1_HW0_GOT:
2186 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2187 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2188 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2189 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
2190 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2191 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
2192 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2193 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2194 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2195 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
2196 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2197 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
2198 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2199 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2200 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2201 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
2202 if (h != NULL)
2203 {
2204 if (h->got.refcount > 0)
2205 h->got.refcount--;
2206 }
2207 else
2208 {
2209 if (local_got_refcounts &&
2210 local_got_refcounts[r_symndx] > 0)
2211 local_got_refcounts[r_symndx]--;
2212 }
2213 break;
2214
2215 case R_TILEGX_64_PCREL:
2216 case R_TILEGX_32_PCREL:
2217 case R_TILEGX_16_PCREL:
2218 case R_TILEGX_8_PCREL:
2219 case R_TILEGX_IMM16_X0_HW0_PCREL:
2220 case R_TILEGX_IMM16_X1_HW0_PCREL:
2221 case R_TILEGX_IMM16_X0_HW1_PCREL:
2222 case R_TILEGX_IMM16_X1_HW1_PCREL:
2223 case R_TILEGX_IMM16_X0_HW2_PCREL:
2224 case R_TILEGX_IMM16_X1_HW2_PCREL:
2225 case R_TILEGX_IMM16_X0_HW3_PCREL:
2226 case R_TILEGX_IMM16_X1_HW3_PCREL:
2227 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2228 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2229 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2230 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2231 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2232 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2233 if (h != NULL
2234 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2235 break;
2236 /* Fall through. */
2237
2238 case R_TILEGX_64:
2239 case R_TILEGX_32:
2240 case R_TILEGX_16:
2241 case R_TILEGX_8:
2242 case R_TILEGX_HW0:
2243 case R_TILEGX_HW1:
2244 case R_TILEGX_HW2:
2245 case R_TILEGX_HW3:
2246 case R_TILEGX_HW0_LAST:
2247 case R_TILEGX_HW1_LAST:
2248 case R_TILEGX_HW2_LAST:
2249 case R_TILEGX_COPY:
2250 case R_TILEGX_GLOB_DAT:
2251 case R_TILEGX_JMP_SLOT:
2252 case R_TILEGX_RELATIVE:
2253 case R_TILEGX_BROFF_X1:
2254 case R_TILEGX_JUMPOFF_X1:
2255 case R_TILEGX_IMM8_X0:
2256 case R_TILEGX_IMM8_Y0:
2257 case R_TILEGX_IMM8_X1:
2258 case R_TILEGX_IMM8_Y1:
2259 case R_TILEGX_DEST_IMM8_X1:
2260 case R_TILEGX_MT_IMM14_X1:
2261 case R_TILEGX_MF_IMM14_X1:
2262 case R_TILEGX_MMSTART_X0:
2263 case R_TILEGX_MMEND_X0:
2264 case R_TILEGX_SHAMT_X0:
2265 case R_TILEGX_SHAMT_X1:
2266 case R_TILEGX_SHAMT_Y0:
2267 case R_TILEGX_SHAMT_Y1:
2268 case R_TILEGX_IMM16_X0_HW0:
2269 case R_TILEGX_IMM16_X1_HW0:
2270 case R_TILEGX_IMM16_X0_HW1:
2271 case R_TILEGX_IMM16_X1_HW1:
2272 case R_TILEGX_IMM16_X0_HW2:
2273 case R_TILEGX_IMM16_X1_HW2:
2274 case R_TILEGX_IMM16_X0_HW3:
2275 case R_TILEGX_IMM16_X1_HW3:
2276 case R_TILEGX_IMM16_X0_HW0_LAST:
2277 case R_TILEGX_IMM16_X1_HW0_LAST:
2278 case R_TILEGX_IMM16_X0_HW1_LAST:
2279 case R_TILEGX_IMM16_X1_HW1_LAST:
2280 case R_TILEGX_IMM16_X0_HW2_LAST:
2281 case R_TILEGX_IMM16_X1_HW2_LAST:
2282 if (bfd_link_pic (info))
2283 break;
2284 /* Fall through. */
2285
2286 case R_TILEGX_JUMPOFF_X1_PLT:
2287 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
2288 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
2289 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
2290 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
2291 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
2292 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
2293 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
2294 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
2295 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
2296 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
2297 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
2298 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
2299 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
2300 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
2301 if (h != NULL)
2302 {
2303 if (h->plt.refcount > 0)
2304 h->plt.refcount--;
2305 }
2306 break;
2307
2308 default:
2309 break;
2310 }
2311 }
2312
2313 return TRUE;
2314 }
2315
2316 /* Adjust a symbol defined by a dynamic object and referenced by a
2317 regular object. The current definition is in some section of the
2318 dynamic object, but we're not including those sections. We have to
2319 change the definition to something the rest of the link can
2320 understand. */
2321
2322 bfd_boolean
2323 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2324 struct elf_link_hash_entry *h)
2325 {
2326 struct tilegx_elf_link_hash_table *htab;
2327 struct tilegx_elf_link_hash_entry * eh;
2328 struct tilegx_elf_dyn_relocs *p;
2329 bfd *dynobj;
2330 asection *s;
2331
2332 htab = tilegx_elf_hash_table (info);
2333 BFD_ASSERT (htab != NULL);
2334
2335 dynobj = htab->elf.dynobj;
2336
2337 /* Make sure we know what is going on here. */
2338 BFD_ASSERT (dynobj != NULL
2339 && (h->needs_plt
2340 || h->u.weakdef != NULL
2341 || (h->def_dynamic
2342 && h->ref_regular
2343 && !h->def_regular)));
2344
2345 /* If this is a function, put it in the procedure linkage table. We
2346 will fill in the contents of the procedure linkage table later
2347 (although we could actually do it here). */
2348 if (h->type == STT_FUNC || h->needs_plt)
2349 {
2350 if (h->plt.refcount <= 0
2351 || SYMBOL_CALLS_LOCAL (info, h)
2352 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2353 && h->root.type == bfd_link_hash_undefweak))
2354 {
2355 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2356 reloc in an input file, but the symbol was never referred
2357 to by a dynamic object, or if all references were garbage
2358 collected. In such a case, we don't actually need to build
2359 a procedure linkage table, and we can just do a
2360 R_TILEGX_JUMPOFF_X1 relocation instead. */
2361 h->plt.offset = (bfd_vma) -1;
2362 h->needs_plt = 0;
2363 }
2364
2365 return TRUE;
2366 }
2367 else
2368 h->plt.offset = (bfd_vma) -1;
2369
2370 /* If this is a weak symbol, and there is a real definition, the
2371 processor independent code will have arranged for us to see the
2372 real definition first, and we can just use the same value. */
2373 if (h->u.weakdef != NULL)
2374 {
2375 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2376 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2377 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2378 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2379 return TRUE;
2380 }
2381
2382 /* This is a reference to a symbol defined by a dynamic object which
2383 is not a function. */
2384
2385 /* If we are creating a shared library, we must presume that the
2386 only references to the symbol are via the global offset table.
2387 For such cases we need not do anything here; the relocations will
2388 be handled correctly by relocate_section. */
2389 if (bfd_link_pic (info))
2390 return TRUE;
2391
2392 /* If there are no references to this symbol that do not use the
2393 GOT, we don't need to generate a copy reloc. */
2394 if (!h->non_got_ref)
2395 return TRUE;
2396
2397 /* If -z nocopyreloc was given, we won't generate them either. */
2398 if (info->nocopyreloc)
2399 {
2400 h->non_got_ref = 0;
2401 return TRUE;
2402 }
2403
2404 eh = (struct tilegx_elf_link_hash_entry *) h;
2405 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2406 {
2407 s = p->sec->output_section;
2408 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2409 break;
2410 }
2411
2412 /* If we didn't find any dynamic relocs in read-only sections, then
2413 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2414 if (p == NULL)
2415 {
2416 h->non_got_ref = 0;
2417 return TRUE;
2418 }
2419
2420 /* We must allocate the symbol in our .dynbss section, which will
2421 become part of the .bss section of the executable. There will be
2422 an entry for this symbol in the .dynsym section. The dynamic
2423 object will contain position independent code, so all references
2424 from the dynamic object to this symbol will go through the global
2425 offset table. The dynamic linker will use the .dynsym entry to
2426 determine the address it must put in the global offset table, so
2427 both the dynamic object and the regular object will refer to the
2428 same memory location for the variable. */
2429
2430 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2431 to copy the initial value out of the dynamic object and into the
2432 runtime process image. We need to remember the offset into the
2433 .rel.bss section we are going to use. */
2434 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2435 {
2436 htab->elf.srelbss->size += TILEGX_ELF_RELA_BYTES (htab);
2437 h->needs_copy = 1;
2438 }
2439
2440 return _bfd_elf_adjust_dynamic_copy (info, h, htab->elf.sdynbss);
2441 }
2442
2443 /* Allocate space in .plt, .got and associated reloc sections for
2444 dynamic relocs. */
2445
2446 static bfd_boolean
2447 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2448 {
2449 struct bfd_link_info *info;
2450 struct tilegx_elf_link_hash_table *htab;
2451 struct tilegx_elf_link_hash_entry *eh;
2452 struct tilegx_elf_dyn_relocs *p;
2453
2454 if (h->root.type == bfd_link_hash_indirect)
2455 return TRUE;
2456
2457 info = (struct bfd_link_info *) inf;
2458 htab = tilegx_elf_hash_table (info);
2459 BFD_ASSERT (htab != NULL);
2460
2461 if (htab->elf.dynamic_sections_created
2462 && h->plt.refcount > 0)
2463 {
2464 /* Make sure this symbol is output as a dynamic symbol.
2465 Undefined weak syms won't yet be marked as dynamic. */
2466 if (h->dynindx == -1
2467 && !h->forced_local)
2468 {
2469 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2470 return FALSE;
2471 }
2472
2473 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2474 {
2475 asection *s = htab->elf.splt;
2476
2477 /* Allocate room for the header and tail. */
2478 if (s->size == 0)
2479 {
2480 s->size = PLT_ENTRY_SIZE;
2481 }
2482
2483 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
2484
2485 /* If this symbol is not defined in a regular file, and we are
2486 not generating a shared library, then set the symbol to this
2487 location in the .plt. This is required to make function
2488 pointers compare as equal between the normal executable and
2489 the shared library. */
2490 if (! bfd_link_pic (info)
2491 && !h->def_regular)
2492 {
2493 h->root.u.def.section = s;
2494 h->root.u.def.value = h->plt.offset;
2495 }
2496
2497 /* Make room for this entry. */
2498 s->size += PLT_ENTRY_SIZE;
2499
2500 /* We also need to make an entry in the .got.plt section. */
2501 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2502
2503 /* We also need to make an entry in the .rela.plt section. */
2504 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2505 }
2506 else
2507 {
2508 h->plt.offset = (bfd_vma) -1;
2509 h->needs_plt = 0;
2510 }
2511 }
2512 else
2513 {
2514 h->plt.offset = (bfd_vma) -1;
2515 h->needs_plt = 0;
2516 }
2517
2518 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2519 requiring no TLS entry. */
2520 if (h->got.refcount > 0
2521 && !htab->disable_le_transition
2522 && !bfd_link_pic (info)
2523 && h->dynindx == -1
2524 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2525 h->got.offset = (bfd_vma) -1;
2526 else if (h->got.refcount > 0)
2527 {
2528 asection *s;
2529 bfd_boolean dyn;
2530 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2531
2532 /* Make sure this symbol is output as a dynamic symbol.
2533 Undefined weak syms won't yet be marked as dynamic. */
2534 if (h->dynindx == -1
2535 && !h->forced_local)
2536 {
2537 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2538 return FALSE;
2539 }
2540
2541 s = htab->elf.sgot;
2542 h->got.offset = s->size;
2543 s->size += TILEGX_ELF_WORD_BYTES (htab);
2544 /* TLS_GD entries need 2 consecutive GOT slots. */
2545 if (tls_type == GOT_TLS_GD)
2546 s->size += TILEGX_ELF_WORD_BYTES (htab);
2547 dyn = htab->elf.dynamic_sections_created;
2548 /* TLS_IE needs one dynamic relocation,
2549 TLS_GD needs two if local symbol and two if global. */
2550 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2551 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2552 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2553 bfd_link_pic (info),
2554 h))
2555 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2556 }
2557 else
2558 h->got.offset = (bfd_vma) -1;
2559
2560 eh = (struct tilegx_elf_link_hash_entry *) h;
2561 if (eh->dyn_relocs == NULL)
2562 return TRUE;
2563
2564 /* In the shared -Bsymbolic case, discard space allocated for
2565 dynamic pc-relative relocs against symbols which turn out to be
2566 defined in regular objects. For the normal shared case, discard
2567 space for pc-relative relocs that have become local due to symbol
2568 visibility changes. */
2569
2570 if (bfd_link_pic (info))
2571 {
2572 if (SYMBOL_CALLS_LOCAL (info, h))
2573 {
2574 struct tilegx_elf_dyn_relocs **pp;
2575
2576 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2577 {
2578 p->count -= p->pc_count;
2579 p->pc_count = 0;
2580 if (p->count == 0)
2581 *pp = p->next;
2582 else
2583 pp = &p->next;
2584 }
2585 }
2586
2587 /* Also discard relocs on undefined weak syms with non-default
2588 visibility. */
2589 if (eh->dyn_relocs != NULL
2590 && h->root.type == bfd_link_hash_undefweak)
2591 {
2592 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2593 eh->dyn_relocs = NULL;
2594
2595 /* Make sure undefined weak symbols are output as a dynamic
2596 symbol in PIEs. */
2597 else if (h->dynindx == -1
2598 && !h->forced_local)
2599 {
2600 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2601 return FALSE;
2602 }
2603 }
2604 }
2605 else
2606 {
2607 /* For the non-shared case, discard space for relocs against
2608 symbols which turn out to need copy relocs or are not
2609 dynamic. */
2610
2611 if (!h->non_got_ref
2612 && ((h->def_dynamic
2613 && !h->def_regular)
2614 || (htab->elf.dynamic_sections_created
2615 && (h->root.type == bfd_link_hash_undefweak
2616 || h->root.type == bfd_link_hash_undefined))))
2617 {
2618 /* Make sure this symbol is output as a dynamic symbol.
2619 Undefined weak syms won't yet be marked as dynamic. */
2620 if (h->dynindx == -1
2621 && !h->forced_local)
2622 {
2623 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2624 return FALSE;
2625 }
2626
2627 /* If that succeeded, we know we'll be keeping all the
2628 relocs. */
2629 if (h->dynindx != -1)
2630 goto keep;
2631 }
2632
2633 eh->dyn_relocs = NULL;
2634
2635 keep: ;
2636 }
2637
2638 /* Finally, allocate space. */
2639 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2640 {
2641 asection *sreloc = elf_section_data (p->sec)->sreloc;
2642 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2643 }
2644
2645 return TRUE;
2646 }
2647
2648 /* Find any dynamic relocs that apply to read-only sections. */
2649
2650 static bfd_boolean
2651 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2652 {
2653 struct tilegx_elf_link_hash_entry *eh;
2654 struct tilegx_elf_dyn_relocs *p;
2655
2656 eh = (struct tilegx_elf_link_hash_entry *) h;
2657 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2658 {
2659 asection *s = p->sec->output_section;
2660
2661 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2662 {
2663 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2664
2665 info->flags |= DF_TEXTREL;
2666
2667 /* Not an error, just cut short the traversal. */
2668 return FALSE;
2669 }
2670 }
2671 return TRUE;
2672 }
2673
2674 /* Return true if the dynamic symbol for a given section should be
2675 omitted when creating a shared library. */
2676
2677 bfd_boolean
2678 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2679 struct bfd_link_info *info,
2680 asection *p)
2681 {
2682 /* We keep the .got section symbol so that explicit relocations
2683 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2684 can be turned into relocations against the .got symbol. */
2685 if (strcmp (p->name, ".got") == 0)
2686 return FALSE;
2687
2688 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2689 }
2690
2691 bfd_boolean
2692 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2693 struct bfd_link_info *info)
2694 {
2695 struct tilegx_elf_link_hash_table *htab;
2696 bfd *dynobj;
2697 asection *s;
2698 bfd *ibfd;
2699
2700 htab = tilegx_elf_hash_table (info);
2701 BFD_ASSERT (htab != NULL);
2702 dynobj = htab->elf.dynobj;
2703 BFD_ASSERT (dynobj != NULL);
2704
2705 if (elf_hash_table (info)->dynamic_sections_created)
2706 {
2707 /* Set the contents of the .interp section to the interpreter. */
2708 if (bfd_link_executable (info) && !info->nointerp)
2709 {
2710 s = bfd_get_linker_section (dynobj, ".interp");
2711 BFD_ASSERT (s != NULL);
2712 s->size = strlen (htab->dynamic_interpreter) + 1;
2713 s->contents = (unsigned char *) htab->dynamic_interpreter;
2714 }
2715 }
2716
2717 /* Set up .got offsets for local syms, and space for local dynamic
2718 relocs. */
2719 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2720 {
2721 bfd_signed_vma *local_got;
2722 bfd_signed_vma *end_local_got;
2723 char *local_tls_type;
2724 bfd_size_type locsymcount;
2725 Elf_Internal_Shdr *symtab_hdr;
2726 asection *srel;
2727
2728 if (! is_tilegx_elf (ibfd))
2729 continue;
2730
2731 for (s = ibfd->sections; s != NULL; s = s->next)
2732 {
2733 struct tilegx_elf_dyn_relocs *p;
2734
2735 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2736 {
2737 if (!bfd_is_abs_section (p->sec)
2738 && bfd_is_abs_section (p->sec->output_section))
2739 {
2740 /* Input section has been discarded, either because
2741 it is a copy of a linkonce section or due to
2742 linker script /DISCARD/, so we'll be discarding
2743 the relocs too. */
2744 }
2745 else if (p->count != 0)
2746 {
2747 srel = elf_section_data (p->sec)->sreloc;
2748 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2749 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2750 info->flags |= DF_TEXTREL;
2751 }
2752 }
2753 }
2754
2755 local_got = elf_local_got_refcounts (ibfd);
2756 if (!local_got)
2757 continue;
2758
2759 symtab_hdr = &elf_symtab_hdr (ibfd);
2760 locsymcount = symtab_hdr->sh_info;
2761 end_local_got = local_got + locsymcount;
2762 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2763 s = htab->elf.sgot;
2764 srel = htab->elf.srelgot;
2765 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2766 {
2767 if (*local_got > 0)
2768 {
2769 *local_got = s->size;
2770 s->size += TILEGX_ELF_WORD_BYTES (htab);
2771 if (*local_tls_type == GOT_TLS_GD)
2772 s->size += TILEGX_ELF_WORD_BYTES (htab);
2773 if (bfd_link_pic (info)
2774 || *local_tls_type == GOT_TLS_GD
2775 || *local_tls_type == GOT_TLS_IE)
2776 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2777 }
2778 else
2779 *local_got = (bfd_vma) -1;
2780 }
2781 }
2782
2783 /* Allocate global sym .plt and .got entries, and space for global
2784 sym dynamic relocs. */
2785 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2786
2787 if (elf_hash_table (info)->dynamic_sections_created)
2788 {
2789 /* If the .got section is more than 0x8000 bytes, we add
2790 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2791 bit relocations have a greater chance of working. */
2792 if (htab->elf.sgot->size >= 0x8000
2793 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2794 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2795 }
2796
2797 if (htab->elf.sgotplt)
2798 {
2799 struct elf_link_hash_entry *got;
2800 got = elf_link_hash_lookup (elf_hash_table (info),
2801 "_GLOBAL_OFFSET_TABLE_",
2802 FALSE, FALSE, FALSE);
2803
2804 /* Don't allocate .got.plt section if there are no GOT nor PLT
2805 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2806 if ((got == NULL
2807 || !got->ref_regular_nonweak)
2808 && (htab->elf.sgotplt->size
2809 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2810 && (htab->elf.splt == NULL
2811 || htab->elf.splt->size == 0)
2812 && (htab->elf.sgot == NULL
2813 || (htab->elf.sgot->size
2814 == get_elf_backend_data (output_bfd)->got_header_size)))
2815 htab->elf.sgotplt->size = 0;
2816 }
2817
2818 /* The check_relocs and adjust_dynamic_symbol entry points have
2819 determined the sizes of the various dynamic sections. Allocate
2820 memory for them. */
2821 for (s = dynobj->sections; s != NULL; s = s->next)
2822 {
2823 if ((s->flags & SEC_LINKER_CREATED) == 0)
2824 continue;
2825
2826 if (s == htab->elf.splt
2827 || s == htab->elf.sgot
2828 || s == htab->elf.sgotplt
2829 || s == htab->elf.sdynbss)
2830 {
2831 /* Strip this section if we don't need it; see the
2832 comment below. */
2833 }
2834 else if (strncmp (s->name, ".rela", 5) == 0)
2835 {
2836 if (s->size != 0)
2837 {
2838 /* We use the reloc_count field as a counter if we need
2839 to copy relocs into the output file. */
2840 s->reloc_count = 0;
2841 }
2842 }
2843 else
2844 {
2845 /* It's not one of our sections. */
2846 continue;
2847 }
2848
2849 if (s->size == 0)
2850 {
2851 /* If we don't need this section, strip it from the
2852 output file. This is mostly to handle .rela.bss and
2853 .rela.plt. We must create both sections in
2854 create_dynamic_sections, because they must be created
2855 before the linker maps input sections to output
2856 sections. The linker does that before
2857 adjust_dynamic_symbol is called, and it is that
2858 function which decides whether anything needs to go
2859 into these sections. */
2860 s->flags |= SEC_EXCLUDE;
2861 continue;
2862 }
2863
2864 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2865 continue;
2866
2867 /* Allocate memory for the section contents. Zero the memory
2868 for the benefit of .rela.plt, which has 4 unused entries
2869 at the beginning, and we don't want garbage. */
2870 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2871 if (s->contents == NULL)
2872 return FALSE;
2873 }
2874
2875 if (elf_hash_table (info)->dynamic_sections_created)
2876 {
2877 /* Add some entries to the .dynamic section. We fill in the
2878 values later, in tilegx_elf_finish_dynamic_sections, but we
2879 must add the entries now so that we get the correct size for
2880 the .dynamic section. The DT_DEBUG entry is filled in by the
2881 dynamic linker and used by the debugger. */
2882 #define add_dynamic_entry(TAG, VAL) \
2883 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2884
2885 if (bfd_link_executable (info))
2886 {
2887 if (!add_dynamic_entry (DT_DEBUG, 0))
2888 return FALSE;
2889 }
2890
2891 if (htab->elf.srelplt->size != 0)
2892 {
2893 if (!add_dynamic_entry (DT_PLTGOT, 0)
2894 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2895 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2896 || !add_dynamic_entry (DT_JMPREL, 0))
2897 return FALSE;
2898 }
2899
2900 if (!add_dynamic_entry (DT_RELA, 0)
2901 || !add_dynamic_entry (DT_RELASZ, 0)
2902 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2903 return FALSE;
2904
2905 /* If any dynamic relocs apply to a read-only section,
2906 then we need a DT_TEXTREL entry. */
2907 if ((info->flags & DF_TEXTREL) == 0)
2908 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2909
2910 if (info->flags & DF_TEXTREL)
2911 {
2912 if (!add_dynamic_entry (DT_TEXTREL, 0))
2913 return FALSE;
2914 }
2915 }
2916 #undef add_dynamic_entry
2917
2918 return TRUE;
2919 }
2920 \f
2921 /* Return the base VMA address which should be subtracted from real addresses
2922 when resolving @dtpoff relocation.
2923 This is PT_TLS segment p_vaddr. */
2924
2925 static bfd_vma
2926 dtpoff_base (struct bfd_link_info *info)
2927 {
2928 /* If tls_sec is NULL, we should have signalled an error already. */
2929 if (elf_hash_table (info)->tls_sec == NULL)
2930 return 0;
2931 return elf_hash_table (info)->tls_sec->vma;
2932 }
2933
2934 /* Return the relocation value for @tpoff relocation. */
2935
2936 static bfd_vma
2937 tpoff (struct bfd_link_info *info, bfd_vma address)
2938 {
2939 struct elf_link_hash_table *htab = elf_hash_table (info);
2940
2941 /* If tls_sec is NULL, we should have signalled an error already. */
2942 if (htab->tls_sec == NULL)
2943 return 0;
2944
2945 return (address - htab->tls_sec->vma);
2946 }
2947
2948 /* Copy SIZE bits from FROM to TO at address ADDR. */
2949
2950 static void
2951 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2952 {
2953 int i;
2954 for (i = 0; i < size; i++)
2955 {
2956 int from_byte = (from + i) / 8;
2957 int from_bit = (from + i) % 8;
2958 int to_byte = (to + i) / 8;
2959 int to_bit = (to + i) % 8;
2960 bfd_byte to_mask = 1 << to_bit;
2961 addr[to_byte] = (addr[to_byte] & ~to_mask)
2962 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2963 }
2964 }
2965
2966 /* Replace the MASK bits in ADDR with those in INSN, for the next
2967 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2968
2969 static void
2970 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2971 const bfd_byte *insn)
2972 {
2973 int i;
2974 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2975 {
2976 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2977 }
2978 }
2979
2980 /* Mask to extract the bits corresponding to an instruction in a
2981 specific pipe of a bundle. */
2982 static const bfd_byte insn_mask_X1[] = {
2983 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2984 };
2985
2986 /* Mask to extract the bits corresponding to an instruction in a
2987 specific pipe of a bundle, minus the destination operand and the
2988 first source operand. */
2989 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2990 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2991 };
2992
2993 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2994 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2995 };
2996
2997 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2998 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2999 };
3000 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
3001 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
3002 };
3003
3004 /* Mask to extract the bits corresponding to an instruction in a
3005 specific pipe of a bundle, minus the register operands. */
3006 static const bfd_byte insn_mask_X0_no_operand[] = {
3007 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
3008 };
3009
3010 static const bfd_byte insn_mask_X1_no_operand[] = {
3011 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
3012 };
3013
3014 static const bfd_byte insn_mask_Y0_no_operand[] = {
3015 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
3016 };
3017
3018 static const bfd_byte insn_mask_Y1_no_operand[] = {
3019 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
3020 };
3021
3022 /* Various instructions synthesized to support tls references. */
3023
3024 /* ld r0, r0 in the X1 pipe, used for tls ie. */
3025 static const bfd_byte insn_tls_ie_ld_X1[] = {
3026 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
3027 };
3028
3029 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
3030 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
3031 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
3032 };
3033
3034 /* add r0, r0, tp in various pipes, used for tls ie. */
3035 static const bfd_byte insn_tls_ie_add_X0X1[] = {
3036 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
3037 };
3038 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
3039 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
3040 };
3041
3042 /* addx r0, r0, tp in various pipes, used for tls ie. */
3043 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
3044 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
3045 };
3046 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
3047 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
3048 };
3049
3050 /* move r0, r0 in various pipes, used for tls gd. */
3051 static const bfd_byte insn_tls_gd_add_X0X1[] = {
3052 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
3053 };
3054 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
3055 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
3056 };
3057
3058 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
3059 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
3060
3061 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
3062 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
3063
3064 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
3065 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
3066
3067 /* Relocate an TILEGX ELF section.
3068
3069 The RELOCATE_SECTION function is called by the new ELF backend linker
3070 to handle the relocations for a section.
3071
3072 The relocs are always passed as Rela structures.
3073
3074 This function is responsible for adjusting the section contents as
3075 necessary, and (if generating a relocatable output file) adjusting
3076 the reloc addend as necessary.
3077
3078 This function does not have to worry about setting the reloc
3079 address or the reloc symbol index.
3080
3081 LOCAL_SYMS is a pointer to the swapped in local symbols.
3082
3083 LOCAL_SECTIONS is an array giving the section in the input file
3084 corresponding to the st_shndx field of each local symbol.
3085
3086 The global hash table entry for the global symbols can be found
3087 via elf_sym_hashes (input_bfd).
3088
3089 When generating relocatable output, this function must handle
3090 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
3091 going to be the section symbol corresponding to the output
3092 section, which means that the addend must be adjusted
3093 accordingly. */
3094
3095 bfd_boolean
3096 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3097 bfd *input_bfd, asection *input_section,
3098 bfd_byte *contents, Elf_Internal_Rela *relocs,
3099 Elf_Internal_Sym *local_syms,
3100 asection **local_sections)
3101 {
3102 struct tilegx_elf_link_hash_table *htab;
3103 Elf_Internal_Shdr *symtab_hdr;
3104 struct elf_link_hash_entry **sym_hashes;
3105 bfd_vma *local_got_offsets;
3106 bfd_vma got_base;
3107 asection *sreloc;
3108 Elf_Internal_Rela *rel;
3109 Elf_Internal_Rela *relend;
3110 int num_relocs;
3111
3112 htab = tilegx_elf_hash_table (info);
3113 BFD_ASSERT (htab != NULL);
3114 symtab_hdr = &elf_symtab_hdr (input_bfd);
3115 sym_hashes = elf_sym_hashes (input_bfd);
3116 local_got_offsets = elf_local_got_offsets (input_bfd);
3117
3118 if (elf_hash_table (info)->hgot == NULL)
3119 got_base = 0;
3120 else
3121 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3122
3123 sreloc = elf_section_data (input_section)->sreloc;
3124
3125 rel = relocs;
3126 num_relocs = input_section->reloc_count;
3127 relend = relocs + num_relocs;
3128 for (; rel < relend; rel++)
3129 {
3130 int r_type, tls_type;
3131 bfd_boolean is_tls_iele, is_tls_le;
3132 reloc_howto_type *howto;
3133 unsigned long r_symndx;
3134 struct elf_link_hash_entry *h;
3135 Elf_Internal_Sym *sym;
3136 tilegx_create_func create_func;
3137 asection *sec;
3138 bfd_vma relocation;
3139 bfd_reloc_status_type r;
3140 const char *name;
3141 bfd_vma off;
3142 bfd_boolean is_plt = FALSE;
3143
3144 bfd_boolean unresolved_reloc;
3145
3146 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
3147 if (r_type == R_TILEGX_GNU_VTINHERIT
3148 || r_type == R_TILEGX_GNU_VTENTRY)
3149 continue;
3150
3151 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3152 {
3153 /* Not clear if we need to check here, but just be paranoid. */
3154 _bfd_error_handler
3155 /* xgettext:c-format */
3156 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
3157 input_bfd, r_type, input_section);
3158 bfd_set_error (bfd_error_bad_value);
3159 return FALSE;
3160 }
3161
3162 howto = tilegx_elf_howto_table + r_type;
3163
3164 /* This is a final link. */
3165 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3166 h = NULL;
3167 sym = NULL;
3168 sec = NULL;
3169 unresolved_reloc = FALSE;
3170 if (r_symndx < symtab_hdr->sh_info)
3171 {
3172 sym = local_syms + r_symndx;
3173 sec = local_sections[r_symndx];
3174 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3175 }
3176 else
3177 {
3178 bfd_boolean warned ATTRIBUTE_UNUSED;
3179 bfd_boolean ignored ATTRIBUTE_UNUSED;
3180
3181 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3182 r_symndx, symtab_hdr, sym_hashes,
3183 h, sec, relocation,
3184 unresolved_reloc, warned, ignored);
3185 if (warned)
3186 {
3187 /* To avoid generating warning messages about truncated
3188 relocations, set the relocation's address to be the same as
3189 the start of this section. */
3190 if (input_section->output_section != NULL)
3191 relocation = input_section->output_section->vma;
3192 else
3193 relocation = 0;
3194 }
3195 }
3196
3197 if (sec != NULL && discarded_section (sec))
3198 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3199 rel, 1, relend, howto, 0, contents);
3200
3201 if (bfd_link_relocatable (info))
3202 continue;
3203
3204 if (h != NULL)
3205 name = h->root.root.string;
3206 else
3207 {
3208 name = (bfd_elf_string_from_elf_section
3209 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3210 if (name == NULL || *name == '\0')
3211 name = bfd_section_name (input_bfd, sec);
3212 }
3213
3214 switch (r_type)
3215 {
3216 case R_TILEGX_TLS_GD_CALL:
3217 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3218 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3219 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3220 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3221 case R_TILEGX_IMM8_X0_TLS_ADD:
3222 case R_TILEGX_IMM8_Y0_TLS_ADD:
3223 case R_TILEGX_IMM8_X1_TLS_ADD:
3224 case R_TILEGX_IMM8_Y1_TLS_ADD:
3225 tls_type = GOT_UNKNOWN;
3226 if (h == NULL && local_got_offsets)
3227 tls_type =
3228 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3229 else if (h != NULL)
3230 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3231
3232 is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
3233 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3234 && !bfd_link_pic (info)
3235 && (h == NULL || h->dynindx == -1));
3236
3237 if (r_type == R_TILEGX_TLS_GD_CALL)
3238 {
3239 if (is_tls_le)
3240 {
3241 /* GD -> LE */
3242 tilegx_replace_insn (contents + rel->r_offset,
3243 insn_mask_X1, insn_move_X0X1);
3244 continue;
3245 }
3246 else if (is_tls_iele)
3247 {
3248 /* GD -> IE */
3249 if (ABI_64_P (output_bfd))
3250 tilegx_replace_insn (contents + rel->r_offset,
3251 insn_mask_X1, insn_tls_ie_ld_X1);
3252 else
3253 tilegx_replace_insn (contents + rel->r_offset,
3254 insn_mask_X1, insn_tls_ie_ld4s_X1);
3255 continue;
3256 }
3257
3258 /* GD -> GD */
3259 h = (struct elf_link_hash_entry *)
3260 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3261 FALSE, TRUE);
3262 BFD_ASSERT (h != NULL);
3263 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3264 howto = tilegx_elf_howto_table + r_type;
3265 }
3266 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3267 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3268 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3269 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3270 {
3271 bfd_boolean is_pipe0 =
3272 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3273 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3274 bfd_boolean is_X0X1 =
3275 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3276 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3277 int dest_begin = is_pipe0 ? 0 : 31;
3278 int src_begin;
3279 const bfd_byte *insn;
3280 const bfd_byte *mask = NULL;
3281
3282 if (is_tls_le)
3283 {
3284 /* 1. copy dest operand into the first source operand.
3285 2. change the opcode to "move". */
3286 src_begin = is_pipe0 ? 6 : 37;
3287 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3288
3289 switch (r_type)
3290 {
3291 case R_TILEGX_IMM8_X0_TLS_ADD:
3292 mask = insn_mask_X0_no_dest_no_srca;
3293 break;
3294 case R_TILEGX_IMM8_X1_TLS_ADD:
3295 mask = insn_mask_X1_no_dest_no_srca;
3296 break;
3297 case R_TILEGX_IMM8_Y0_TLS_ADD:
3298 mask = insn_mask_Y0_no_dest_no_srca;
3299 break;
3300 case R_TILEGX_IMM8_Y1_TLS_ADD:
3301 mask = insn_mask_Y1_no_dest_no_srca;
3302 break;
3303 }
3304 }
3305 else
3306 {
3307 /* 1. copy dest operand into the second source operand.
3308 2. change the opcode to "add". */
3309 src_begin = is_pipe0 ? 12 : 43;
3310 if (ABI_64_P (output_bfd))
3311 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3312 else
3313 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3314
3315 switch (r_type)
3316 {
3317 case R_TILEGX_IMM8_X0_TLS_ADD:
3318 mask = insn_mask_X0_no_operand;
3319 break;
3320 case R_TILEGX_IMM8_X1_TLS_ADD:
3321 mask = insn_mask_X1_no_operand;
3322 break;
3323 case R_TILEGX_IMM8_Y0_TLS_ADD:
3324 mask = insn_mask_Y0_no_operand;
3325 break;
3326 case R_TILEGX_IMM8_Y1_TLS_ADD:
3327 mask = insn_mask_Y1_no_operand;
3328 break;
3329 }
3330 }
3331
3332 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3333 src_begin, 6);
3334 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3335
3336 continue;
3337 }
3338 else
3339 {
3340 const bfd_byte *mask = NULL;
3341 const bfd_byte *add_insn = NULL;
3342 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3343
3344 switch (r_type)
3345 {
3346 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3347 add_insn = is_tls_iele
3348 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3349 : insn_tls_gd_add_X0X1;
3350 mask = insn_mask_X0_no_dest_no_srca;
3351 break;
3352 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3353 add_insn = is_tls_iele
3354 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3355 : insn_tls_gd_add_X0X1;
3356 mask = insn_mask_X1_no_dest_no_srca;
3357 break;
3358 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3359 add_insn = is_tls_iele
3360 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3361 : insn_tls_gd_add_Y0Y1;
3362 mask = insn_mask_Y0_no_dest_no_srca;
3363 break;
3364 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3365 add_insn = is_tls_iele
3366 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3367 : insn_tls_gd_add_Y0Y1;
3368 mask = insn_mask_Y1_no_dest_no_srca;
3369 break;
3370 }
3371
3372 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3373
3374 continue;
3375 }
3376 break;
3377 case R_TILEGX_TLS_IE_LOAD:
3378 if (!input_section->sec_flg0
3379 && !bfd_link_pic (info)
3380 && (h == NULL || h->dynindx == -1))
3381 {
3382 /* IE -> LE */
3383 tilegx_replace_insn (contents + rel->r_offset,
3384 insn_mask_X1_no_dest_no_srca,
3385 insn_move_X0X1);
3386 }
3387 else
3388 {
3389 /* IE -> IE */
3390 if (ABI_64_P (output_bfd))
3391 tilegx_replace_insn (contents + rel->r_offset,
3392 insn_mask_X1_no_dest_no_srca,
3393 insn_tls_ie_ld_X1);
3394 else
3395 tilegx_replace_insn (contents + rel->r_offset,
3396 insn_mask_X1_no_dest_no_srca,
3397 insn_tls_ie_ld4s_X1);
3398 }
3399 continue;
3400 break;
3401 default:
3402 break;
3403 }
3404
3405 switch (r_type)
3406 {
3407 case R_TILEGX_IMM16_X0_HW0_GOT:
3408 case R_TILEGX_IMM16_X1_HW0_GOT:
3409 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3410 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3411 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3412 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3413 /* Relocation is to the entry for this symbol in the global
3414 offset table. */
3415 if (htab->elf.sgot == NULL)
3416 abort ();
3417
3418 if (h != NULL)
3419 {
3420 bfd_boolean dyn;
3421
3422 off = h->got.offset;
3423 BFD_ASSERT (off != (bfd_vma) -1);
3424 dyn = elf_hash_table (info)->dynamic_sections_created;
3425
3426 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3427 bfd_link_pic (info),
3428 h)
3429 || (bfd_link_pic (info)
3430 && SYMBOL_REFERENCES_LOCAL (info, h)))
3431 {
3432 /* This is actually a static link, or it is a
3433 -Bsymbolic link and the symbol is defined
3434 locally, or the symbol was forced to be local
3435 because of a version file. We must initialize
3436 this entry in the global offset table. Since the
3437 offset must always be a multiple
3438 of 8 for 64-bit, we use the least significant bit
3439 to record whether we have initialized it already.
3440
3441 When doing a dynamic link, we create a .rela.got
3442 relocation entry to initialize the value. This
3443 is done in the finish_dynamic_symbol routine. */
3444 if ((off & 1) != 0)
3445 off &= ~1;
3446 else
3447 {
3448 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3449 htab->elf.sgot->contents + off);
3450 h->got.offset |= 1;
3451 }
3452 }
3453 else
3454 unresolved_reloc = FALSE;
3455 }
3456 else
3457 {
3458 BFD_ASSERT (local_got_offsets != NULL
3459 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3460
3461 off = local_got_offsets[r_symndx];
3462
3463 /* The offset must always be a multiple of 8 on 64-bit.
3464 We use the least significant bit to record
3465 whether we have already processed this entry. */
3466 if ((off & 1) != 0)
3467 off &= ~1;
3468 else
3469 {
3470 if (bfd_link_pic (info))
3471 {
3472 asection *s;
3473 Elf_Internal_Rela outrel;
3474
3475 /* We need to generate a R_TILEGX_RELATIVE reloc
3476 for the dynamic linker. */
3477 s = htab->elf.srelgot;
3478 BFD_ASSERT (s != NULL);
3479
3480 outrel.r_offset = (htab->elf.sgot->output_section->vma
3481 + htab->elf.sgot->output_offset
3482 + off);
3483 outrel.r_info =
3484 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3485 outrel.r_addend = relocation;
3486 relocation = 0;
3487 tilegx_elf_append_rela (output_bfd, s, &outrel);
3488 }
3489
3490 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3491 htab->elf.sgot->contents + off);
3492 local_got_offsets[r_symndx] |= 1;
3493 }
3494 }
3495 relocation = off - got_base;
3496 break;
3497
3498 case R_TILEGX_JUMPOFF_X1_PLT:
3499 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3500 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3501 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3502 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3503 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3504 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3505 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3506 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3507 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3508 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3509 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3510 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3511 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3512 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
3513 /* Relocation is to the entry for this symbol in the
3514 procedure linkage table. */
3515 BFD_ASSERT (h != NULL);
3516
3517 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3518 {
3519 /* We didn't make a PLT entry for this symbol. This
3520 happens when statically linking PIC code, or when
3521 using -Bsymbolic. */
3522 break;
3523 }
3524
3525 relocation = (htab->elf.splt->output_section->vma
3526 + htab->elf.splt->output_offset
3527 + h->plt.offset);
3528 unresolved_reloc = FALSE;
3529 break;
3530
3531 case R_TILEGX_64_PCREL:
3532 case R_TILEGX_32_PCREL:
3533 case R_TILEGX_16_PCREL:
3534 case R_TILEGX_8_PCREL:
3535 case R_TILEGX_IMM16_X0_HW0_PCREL:
3536 case R_TILEGX_IMM16_X1_HW0_PCREL:
3537 case R_TILEGX_IMM16_X0_HW1_PCREL:
3538 case R_TILEGX_IMM16_X1_HW1_PCREL:
3539 case R_TILEGX_IMM16_X0_HW2_PCREL:
3540 case R_TILEGX_IMM16_X1_HW2_PCREL:
3541 case R_TILEGX_IMM16_X0_HW3_PCREL:
3542 case R_TILEGX_IMM16_X1_HW3_PCREL:
3543 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3544 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3545 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3546 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3547 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3548 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3549 if (h != NULL
3550 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3551 break;
3552 /* Fall through. */
3553 case R_TILEGX_64:
3554 case R_TILEGX_32:
3555 case R_TILEGX_16:
3556 case R_TILEGX_8:
3557 case R_TILEGX_HW0:
3558 case R_TILEGX_HW1:
3559 case R_TILEGX_HW2:
3560 case R_TILEGX_HW3:
3561 case R_TILEGX_HW0_LAST:
3562 case R_TILEGX_HW1_LAST:
3563 case R_TILEGX_HW2_LAST:
3564 case R_TILEGX_COPY:
3565 case R_TILEGX_GLOB_DAT:
3566 case R_TILEGX_JMP_SLOT:
3567 case R_TILEGX_RELATIVE:
3568 case R_TILEGX_BROFF_X1:
3569 case R_TILEGX_JUMPOFF_X1:
3570 case R_TILEGX_IMM8_X0:
3571 case R_TILEGX_IMM8_Y0:
3572 case R_TILEGX_IMM8_X1:
3573 case R_TILEGX_IMM8_Y1:
3574 case R_TILEGX_DEST_IMM8_X1:
3575 case R_TILEGX_MT_IMM14_X1:
3576 case R_TILEGX_MF_IMM14_X1:
3577 case R_TILEGX_MMSTART_X0:
3578 case R_TILEGX_MMEND_X0:
3579 case R_TILEGX_SHAMT_X0:
3580 case R_TILEGX_SHAMT_X1:
3581 case R_TILEGX_SHAMT_Y0:
3582 case R_TILEGX_SHAMT_Y1:
3583 case R_TILEGX_IMM16_X0_HW0:
3584 case R_TILEGX_IMM16_X1_HW0:
3585 case R_TILEGX_IMM16_X0_HW1:
3586 case R_TILEGX_IMM16_X1_HW1:
3587 case R_TILEGX_IMM16_X0_HW2:
3588 case R_TILEGX_IMM16_X1_HW2:
3589 case R_TILEGX_IMM16_X0_HW3:
3590 case R_TILEGX_IMM16_X1_HW3:
3591 case R_TILEGX_IMM16_X0_HW0_LAST:
3592 case R_TILEGX_IMM16_X1_HW0_LAST:
3593 case R_TILEGX_IMM16_X0_HW1_LAST:
3594 case R_TILEGX_IMM16_X1_HW1_LAST:
3595 case R_TILEGX_IMM16_X0_HW2_LAST:
3596 case R_TILEGX_IMM16_X1_HW2_LAST:
3597 if ((input_section->flags & SEC_ALLOC) == 0)
3598 break;
3599
3600 if ((bfd_link_pic (info)
3601 && (h == NULL
3602 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3603 || h->root.type != bfd_link_hash_undefweak)
3604 && (! howto->pc_relative
3605 || !SYMBOL_CALLS_LOCAL (info, h)))
3606 || (!bfd_link_pic (info)
3607 && h != NULL
3608 && h->dynindx != -1
3609 && !h->non_got_ref
3610 && ((h->def_dynamic
3611 && !h->def_regular)
3612 || h->root.type == bfd_link_hash_undefweak
3613 || h->root.type == bfd_link_hash_undefined)))
3614 {
3615 Elf_Internal_Rela outrel;
3616 bfd_boolean skip, relocate = FALSE;
3617
3618 /* When generating a shared object, these relocations
3619 are copied into the output file to be resolved at run
3620 time. */
3621
3622 BFD_ASSERT (sreloc != NULL);
3623
3624 skip = FALSE;
3625
3626 outrel.r_offset =
3627 _bfd_elf_section_offset (output_bfd, info, input_section,
3628 rel->r_offset);
3629 if (outrel.r_offset == (bfd_vma) -1)
3630 skip = TRUE;
3631 else if (outrel.r_offset == (bfd_vma) -2)
3632 skip = TRUE, relocate = TRUE;
3633 outrel.r_offset += (input_section->output_section->vma
3634 + input_section->output_offset);
3635
3636 switch (r_type)
3637 {
3638 case R_TILEGX_64_PCREL:
3639 case R_TILEGX_32_PCREL:
3640 case R_TILEGX_16_PCREL:
3641 case R_TILEGX_8_PCREL:
3642 /* If the symbol is not dynamic, we should not keep
3643 a dynamic relocation. But an .rela.* slot has been
3644 allocated for it, output R_TILEGX_NONE.
3645 FIXME: Add code tracking needed dynamic relocs as
3646 e.g. i386 has. */
3647 if (h->dynindx == -1)
3648 skip = TRUE, relocate = TRUE;
3649 break;
3650 }
3651
3652 if (skip)
3653 memset (&outrel, 0, sizeof outrel);
3654 /* h->dynindx may be -1 if the symbol was marked to
3655 become local. */
3656 else if (h != NULL &&
3657 h->dynindx != -1
3658 && (! is_plt
3659 || !bfd_link_pic (info)
3660 || !SYMBOLIC_BIND (info, h)
3661 || !h->def_regular))
3662 {
3663 BFD_ASSERT (h->dynindx != -1);
3664 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3665 outrel.r_addend = rel->r_addend;
3666 }
3667 else
3668 {
3669 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3670 {
3671 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3672 R_TILEGX_RELATIVE);
3673 outrel.r_addend = relocation + rel->r_addend;
3674 }
3675 else
3676 {
3677 long indx;
3678
3679 outrel.r_addend = relocation + rel->r_addend;
3680
3681 if (is_plt)
3682 sec = htab->elf.splt;
3683
3684 if (bfd_is_abs_section (sec))
3685 indx = 0;
3686 else if (sec == NULL || sec->owner == NULL)
3687 {
3688 bfd_set_error (bfd_error_bad_value);
3689 return FALSE;
3690 }
3691 else
3692 {
3693 asection *osec;
3694
3695 /* We are turning this relocation into one
3696 against a section symbol. It would be
3697 proper to subtract the symbol's value,
3698 osec->vma, from the emitted reloc addend,
3699 but ld.so expects buggy relocs. */
3700 osec = sec->output_section;
3701 indx = elf_section_data (osec)->dynindx;
3702
3703 if (indx == 0)
3704 {
3705 osec = htab->elf.text_index_section;
3706 indx = elf_section_data (osec)->dynindx;
3707 }
3708
3709 /* FIXME: we really should be able to link non-pic
3710 shared libraries. */
3711 if (indx == 0)
3712 {
3713 BFD_FAIL ();
3714 _bfd_error_handler
3715 (_("%B: probably compiled without -fPIC?"),
3716 input_bfd);
3717 bfd_set_error (bfd_error_bad_value);
3718 return FALSE;
3719 }
3720 }
3721
3722 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3723 r_type);
3724 }
3725 }
3726
3727 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3728
3729 /* This reloc will be computed at runtime, so there's no
3730 need to do anything now. */
3731 if (! relocate)
3732 continue;
3733 }
3734 break;
3735
3736 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3737 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3738 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3739 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3740 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3741 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3742 if (bfd_link_pic (info))
3743 {
3744 Elf_Internal_Rela outrel;
3745 bfd_boolean skip;
3746
3747 BFD_ASSERT (sreloc != NULL);
3748 skip = FALSE;
3749 outrel.r_offset =
3750 _bfd_elf_section_offset (output_bfd, info, input_section,
3751 rel->r_offset);
3752 if (outrel.r_offset == (bfd_vma) -1)
3753 skip = TRUE;
3754 else if (outrel.r_offset == (bfd_vma) -2)
3755 skip = TRUE;
3756 outrel.r_offset += (input_section->output_section->vma
3757 + input_section->output_offset);
3758 if (skip)
3759 memset (&outrel, 0, sizeof outrel);
3760 else
3761 {
3762 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3763 outrel.r_addend = relocation - dtpoff_base (info)
3764 + rel->r_addend;
3765 }
3766
3767 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3768 continue;
3769 }
3770 relocation = tpoff (info, relocation);
3771 break;
3772
3773 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3774 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3775 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3776 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3777 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3778 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3779 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3780 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3781 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3782 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3783 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3784 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3785 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3786 input_section->sec_flg0);
3787 tls_type = GOT_UNKNOWN;
3788 if (h == NULL && local_got_offsets)
3789 tls_type =
3790 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3791 else if (h != NULL)
3792 {
3793 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3794 if (!bfd_link_pic (info)
3795 && h->dynindx == -1
3796 && tls_type == GOT_TLS_IE)
3797 r_type = (!input_section->sec_flg0
3798 ? tilegx_tls_translate_to_le (r_type)
3799 : tilegx_tls_translate_to_ie (r_type));
3800 }
3801
3802 if (tls_type == GOT_TLS_IE)
3803 r_type = tilegx_tls_translate_to_ie (r_type);
3804
3805 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3806 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3807 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3808 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3809 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3810 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3811 {
3812 relocation = tpoff (info, relocation);
3813 break;
3814 }
3815
3816 if (h != NULL)
3817 {
3818 off = h->got.offset;
3819 h->got.offset |= 1;
3820 }
3821 else
3822 {
3823 BFD_ASSERT (local_got_offsets != NULL);
3824 off = local_got_offsets[r_symndx];
3825 local_got_offsets[r_symndx] |= 1;
3826 }
3827
3828 if (htab->elf.sgot == NULL)
3829 abort ();
3830
3831 if ((off & 1) != 0)
3832 off &= ~1;
3833 else
3834 {
3835 Elf_Internal_Rela outrel;
3836 int indx = 0;
3837 bfd_boolean need_relocs = FALSE;
3838
3839 if (htab->elf.srelgot == NULL)
3840 abort ();
3841
3842 if (h != NULL)
3843 {
3844 bfd_boolean dyn;
3845 dyn = htab->elf.dynamic_sections_created;
3846
3847 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3848 bfd_link_pic (info),
3849 h)
3850 && (!bfd_link_pic (info)
3851 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3852 {
3853 indx = h->dynindx;
3854 }
3855 }
3856
3857 /* The GOT entries have not been initialized yet. Do it
3858 now, and emit any relocations. */
3859 if ((bfd_link_pic (info) || indx != 0)
3860 && (h == NULL
3861 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3862 || h->root.type != bfd_link_hash_undefweak))
3863 need_relocs = TRUE;
3864
3865 switch (r_type)
3866 {
3867 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3868 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3869 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3870 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3871 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3872 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3873 if (need_relocs) {
3874 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3875 htab->elf.sgot->contents + off);
3876 outrel.r_offset = (htab->elf.sgot->output_section->vma
3877 + htab->elf.sgot->output_offset + off);
3878 outrel.r_addend = 0;
3879 if (indx == 0)
3880 outrel.r_addend = relocation - dtpoff_base (info);
3881 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3882 TILEGX_ELF_TPOFF_RELOC (htab));
3883 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3884 } else {
3885 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3886 tpoff (info, relocation),
3887 htab->elf.sgot->contents + off);
3888 }
3889 break;
3890
3891 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3892 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3893 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3894 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3895 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3896 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3897 if (need_relocs) {
3898 outrel.r_offset = (htab->elf.sgot->output_section->vma
3899 + htab->elf.sgot->output_offset + off);
3900 outrel.r_addend = 0;
3901 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3902 TILEGX_ELF_DTPMOD_RELOC (htab));
3903 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3904 htab->elf.sgot->contents + off);
3905 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3906 if (indx == 0)
3907 {
3908 BFD_ASSERT (! unresolved_reloc);
3909 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3910 relocation - dtpoff_base (info),
3911 (htab->elf.sgot->contents + off +
3912 TILEGX_ELF_WORD_BYTES (htab)));
3913 }
3914 else
3915 {
3916 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3917 (htab->elf.sgot->contents + off +
3918 TILEGX_ELF_WORD_BYTES (htab)));
3919 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3920 TILEGX_ELF_DTPOFF_RELOC (htab));
3921 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3922 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3923 }
3924 }
3925
3926 else {
3927 /* If we are not emitting relocations for a
3928 general dynamic reference, then we must be in a
3929 static link or an executable link with the
3930 symbol binding locally. Mark it as belonging
3931 to module 1, the executable. */
3932 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3933 htab->elf.sgot->contents + off );
3934 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3935 relocation - dtpoff_base (info),
3936 htab->elf.sgot->contents + off +
3937 TILEGX_ELF_WORD_BYTES (htab));
3938 }
3939 break;
3940 }
3941 }
3942
3943 if (off >= (bfd_vma) -2)
3944 abort ();
3945
3946 relocation = off - got_base;
3947 unresolved_reloc = FALSE;
3948 howto = tilegx_elf_howto_table + r_type;
3949 break;
3950
3951 default:
3952 break;
3953 }
3954
3955 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3956 because such sections are not SEC_ALLOC and thus ld.so will
3957 not process them. */
3958 if (unresolved_reloc
3959 && !((input_section->flags & SEC_DEBUGGING) != 0
3960 && h->def_dynamic)
3961 && _bfd_elf_section_offset (output_bfd, info, input_section,
3962 rel->r_offset) != (bfd_vma) -1)
3963 _bfd_error_handler
3964 /* xgettext:c-format */
3965 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3966 input_bfd,
3967 input_section,
3968 (long) rel->r_offset,
3969 howto->name,
3970 h->root.root.string);
3971
3972 r = bfd_reloc_continue;
3973
3974 /* Get the operand creation function, if any. */
3975 create_func = reloc_to_create_func[r_type];
3976 if (create_func == NULL)
3977 {
3978 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3979 contents, rel->r_offset,
3980 relocation, rel->r_addend);
3981 }
3982 else
3983 {
3984 if (howto->pc_relative)
3985 {
3986 relocation -=
3987 input_section->output_section->vma + input_section->output_offset;
3988 if (howto->pcrel_offset)
3989 relocation -= rel->r_offset;
3990 }
3991
3992 bfd_byte *data;
3993
3994 /* Add the relocation addend if any to the final target value */
3995 relocation += rel->r_addend;
3996
3997 /* Do basic range checking */
3998 r = bfd_check_overflow (howto->complain_on_overflow,
3999 howto->bitsize,
4000 howto->rightshift,
4001 TILEGX_ELF_WORD_BYTES (htab) * 8,
4002 relocation);
4003
4004 /*
4005 * Write the relocated value out into the raw section data.
4006 * Don't put a relocation out in the .rela section.
4007 */
4008 tilegx_bundle_bits mask = create_func(-1);
4009 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
4010
4011 /* Only touch bytes while the mask is not 0, so we
4012 don't write to out of bounds memory if this is actually
4013 a 16-bit switch instruction. */
4014 for (data = contents + rel->r_offset; mask != 0; data++)
4015 {
4016 bfd_byte byte_mask = (bfd_byte)mask;
4017 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
4018 mask >>= 8;
4019 value >>= 8;
4020 }
4021 }
4022
4023 if (r != bfd_reloc_ok)
4024 {
4025 const char *msg = NULL;
4026
4027 switch (r)
4028 {
4029 case bfd_reloc_overflow:
4030 (*info->callbacks->reloc_overflow)
4031 (info, (h ? &h->root : NULL), name, howto->name,
4032 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4033 break;
4034
4035 case bfd_reloc_undefined:
4036 (*info->callbacks->undefined_symbol)
4037 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
4038 break;
4039
4040 case bfd_reloc_outofrange:
4041 msg = _("internal error: out of range error");
4042 break;
4043
4044 case bfd_reloc_notsupported:
4045 msg = _("internal error: unsupported relocation error");
4046 break;
4047
4048 case bfd_reloc_dangerous:
4049 msg = _("internal error: dangerous relocation");
4050 break;
4051
4052 default:
4053 msg = _("internal error: unknown error");
4054 break;
4055 }
4056
4057 if (msg)
4058 (*info->callbacks->warning) (info, msg, name, input_bfd,
4059 input_section, rel->r_offset);
4060 }
4061 }
4062
4063 return TRUE;
4064 }
4065
4066 /* Finish up dynamic symbol handling. We set the contents of various
4067 dynamic sections here. */
4068
4069 bfd_boolean
4070 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
4071 struct bfd_link_info *info,
4072 struct elf_link_hash_entry *h,
4073 Elf_Internal_Sym *sym)
4074 {
4075 struct tilegx_elf_link_hash_table *htab;
4076
4077 htab = tilegx_elf_hash_table (info);
4078 BFD_ASSERT (htab != NULL);
4079
4080 if (h->plt.offset != (bfd_vma) -1)
4081 {
4082 asection *splt;
4083 asection *srela;
4084 asection *sgotplt;
4085 Elf_Internal_Rela rela;
4086 bfd_byte *loc;
4087 bfd_vma r_offset;
4088 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
4089
4090
4091 int rela_index;
4092
4093 /* This symbol has an entry in the PLT. Set it up. */
4094
4095 BFD_ASSERT (h->dynindx != -1);
4096
4097 splt = htab->elf.splt;
4098 srela = htab->elf.srelplt;
4099 sgotplt = htab->elf.sgotplt;
4100
4101 if (splt == NULL || srela == NULL)
4102 abort ();
4103
4104 /* Fill in the entry in the procedure linkage table. */
4105 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
4106 h->plt.offset, &r_offset);
4107
4108 /* Fill in the entry in the global offset table, which initially points
4109 to the beginning of the plt. */
4110 TILEGX_ELF_PUT_WORD (htab, output_bfd,
4111 splt->output_section->vma + splt->output_offset,
4112 sgotplt->contents + r_offset);
4113
4114 /* Fill in the entry in the .rela.plt section. */
4115 rela.r_offset = (sgotplt->output_section->vma
4116 + sgotplt->output_offset
4117 + r_offset);
4118 rela.r_addend = 0;
4119 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
4120
4121 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
4122 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4123
4124 if (!h->def_regular)
4125 {
4126 /* Mark the symbol as undefined, rather than as defined in
4127 the .plt section. Leave the value alone. */
4128 sym->st_shndx = SHN_UNDEF;
4129 /* If the symbol is weak, we do need to clear the value.
4130 Otherwise, the PLT entry would provide a definition for
4131 the symbol even if the symbol wasn't defined anywhere,
4132 and so the symbol would never be NULL. */
4133 if (!h->ref_regular_nonweak)
4134 sym->st_value = 0;
4135 }
4136 }
4137
4138 if (h->got.offset != (bfd_vma) -1
4139 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4140 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4141 {
4142 asection *sgot;
4143 asection *srela;
4144 Elf_Internal_Rela rela;
4145
4146 /* This symbol has an entry in the GOT. Set it up. */
4147
4148 sgot = htab->elf.sgot;
4149 srela = htab->elf.srelgot;
4150 BFD_ASSERT (sgot != NULL && srela != NULL);
4151
4152 rela.r_offset = (sgot->output_section->vma
4153 + sgot->output_offset
4154 + (h->got.offset &~ (bfd_vma) 1));
4155
4156 /* If this is a -Bsymbolic link, and the symbol is defined
4157 locally, we just want to emit a RELATIVE reloc. Likewise if
4158 the symbol was forced to be local because of a version file.
4159 The entry in the global offset table will already have been
4160 initialized in the relocate_section function. */
4161 if (bfd_link_pic (info)
4162 && (info->symbolic || h->dynindx == -1)
4163 && h->def_regular)
4164 {
4165 asection *sec = h->root.u.def.section;
4166 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4167 rela.r_addend = (h->root.u.def.value
4168 + sec->output_section->vma
4169 + sec->output_offset);
4170 }
4171 else
4172 {
4173 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4174 rela.r_addend = 0;
4175 }
4176
4177 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4178 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4179 tilegx_elf_append_rela (output_bfd, srela, &rela);
4180 }
4181
4182 if (h->needs_copy)
4183 {
4184 asection *s;
4185 Elf_Internal_Rela rela;
4186
4187 /* This symbols needs a copy reloc. Set it up. */
4188 BFD_ASSERT (h->dynindx != -1);
4189
4190 s = htab->elf.srelbss;
4191 BFD_ASSERT (s != NULL);
4192
4193 rela.r_offset = (h->root.u.def.value
4194 + h->root.u.def.section->output_section->vma
4195 + h->root.u.def.section->output_offset);
4196 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4197 rela.r_addend = 0;
4198 tilegx_elf_append_rela (output_bfd, s, &rela);
4199 }
4200
4201 /* Mark some specially defined symbols as absolute. */
4202 if (h == htab->elf.hdynamic
4203 || (h == htab->elf.hgot || h == htab->elf.hplt))
4204 sym->st_shndx = SHN_ABS;
4205
4206 return TRUE;
4207 }
4208
4209 /* Finish up the dynamic sections. */
4210
4211 static bfd_boolean
4212 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4213 bfd *dynobj, asection *sdyn,
4214 asection *splt ATTRIBUTE_UNUSED)
4215 {
4216 struct tilegx_elf_link_hash_table *htab;
4217 const struct elf_backend_data *bed;
4218 bfd_byte *dyncon, *dynconend;
4219 size_t dynsize;
4220
4221 htab = tilegx_elf_hash_table (info);
4222 BFD_ASSERT (htab != NULL);
4223 bed = get_elf_backend_data (output_bfd);
4224 dynsize = bed->s->sizeof_dyn;
4225 dynconend = sdyn->contents + sdyn->size;
4226
4227 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4228 {
4229 Elf_Internal_Dyn dyn;
4230 asection *s;
4231
4232 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4233
4234 switch (dyn.d_tag)
4235 {
4236 case DT_PLTGOT:
4237 s = htab->elf.sgotplt;
4238 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4239 break;
4240 case DT_JMPREL:
4241 s = htab->elf.srelplt;
4242 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4243 break;
4244 case DT_PLTRELSZ:
4245 s = htab->elf.srelplt;
4246 dyn.d_un.d_val = s->size;
4247 break;
4248 default:
4249 continue;
4250 }
4251
4252 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4253 }
4254 return TRUE;
4255 }
4256
4257 bfd_boolean
4258 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4259 struct bfd_link_info *info)
4260 {
4261 bfd *dynobj;
4262 asection *sdyn;
4263 struct tilegx_elf_link_hash_table *htab;
4264 size_t pad_size;
4265
4266 htab = tilegx_elf_hash_table (info);
4267 BFD_ASSERT (htab != NULL);
4268 dynobj = htab->elf.dynobj;
4269
4270 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4271
4272 if (elf_hash_table (info)->dynamic_sections_created)
4273 {
4274 asection *splt;
4275 bfd_boolean ret;
4276
4277 splt = htab->elf.splt;
4278 BFD_ASSERT (splt != NULL && sdyn != NULL);
4279
4280 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4281
4282 if (ret != TRUE)
4283 return ret;
4284
4285 /* Fill in the head and tail entries in the procedure linkage table. */
4286 if (splt->size > 0)
4287 {
4288 memcpy (splt->contents,
4289 ABI_64_P (output_bfd) ?
4290 tilegx64_plt0_entry : tilegx32_plt0_entry,
4291 PLT_HEADER_SIZE);
4292
4293 memcpy (splt->contents + splt->size
4294 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
4295 ABI_64_P (output_bfd) ?
4296 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4297 PLT_TAIL_SIZE);
4298 /* Add padding so that the plt section is a multiple of its
4299 entry size. */
4300 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4301 memset (splt->contents + splt->size - pad_size, 0, pad_size);
4302 }
4303
4304 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4305 = PLT_ENTRY_SIZE;
4306 }
4307
4308 if (htab->elf.sgotplt)
4309 {
4310 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4311 {
4312 _bfd_error_handler
4313 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4314 return FALSE;
4315 }
4316
4317 if (htab->elf.sgotplt->size > 0)
4318 {
4319 /* Write the first two entries in .got.plt, needed for the dynamic
4320 linker. */
4321 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4322 htab->elf.sgotplt->contents);
4323 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4324 htab->elf.sgotplt->contents
4325 + GOT_ENTRY_SIZE (htab));
4326 }
4327
4328 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4329 GOT_ENTRY_SIZE (htab);
4330 }
4331
4332 if (htab->elf.sgot)
4333 {
4334 if (htab->elf.sgot->size > 0)
4335 {
4336 /* Set the first entry in the global offset table to the address of
4337 the dynamic section. */
4338 bfd_vma val = (sdyn ?
4339 sdyn->output_section->vma + sdyn->output_offset :
4340 0);
4341 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4342 htab->elf.sgot->contents);
4343 }
4344
4345 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4346 GOT_ENTRY_SIZE (htab);
4347 }
4348
4349 return TRUE;
4350 }
4351
4352 \f
4353
4354 /* Return address for Ith PLT stub in section PLT, for relocation REL
4355 or (bfd_vma) -1 if it should not be included. */
4356
4357 bfd_vma
4358 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4359 const arelent *rel ATTRIBUTE_UNUSED)
4360 {
4361 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4362 }
4363
4364 enum elf_reloc_type_class
4365 tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4366 const asection *rel_sec ATTRIBUTE_UNUSED,
4367 const Elf_Internal_Rela *rela)
4368 {
4369 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4370 {
4371 case R_TILEGX_RELATIVE:
4372 return reloc_class_relative;
4373 case R_TILEGX_JMP_SLOT:
4374 return reloc_class_plt;
4375 case R_TILEGX_COPY:
4376 return reloc_class_copy;
4377 default:
4378 return reloc_class_normal;
4379 }
4380 }
4381
4382 int
4383 tilegx_additional_program_headers (bfd *abfd,
4384 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4385 {
4386 /* Each .intrpt section specified by the user adds another PT_LOAD
4387 header since the sections are discontiguous. */
4388 static const char intrpt_sections[4][9] =
4389 {
4390 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4391 };
4392 int count = 0;
4393 int i;
4394
4395 for (i = 0; i < 4; i++)
4396 {
4397 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4398 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4399 ++count;
4400 }
4401
4402 /* Add four "padding" headers in to leave room in case a custom linker
4403 script does something fancy. Otherwise ld complains that it ran
4404 out of program headers and refuses to link. */
4405 count += 4;
4406
4407 return count;
4408 }
4409
4410
4411 bfd_boolean
4412 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4413 {
4414 bfd *obfd = info->output_bfd;
4415 const char *targ1 = bfd_get_target (ibfd);
4416 const char *targ2 = bfd_get_target (obfd);
4417
4418 if (strcmp (targ1, targ2) != 0)
4419 {
4420 _bfd_error_handler
4421 /* xgettext:c-format */
4422 (_("%B: Cannot link together %s and %s objects."),
4423 ibfd, targ1, targ2);
4424 bfd_set_error (bfd_error_bad_value);
4425 return FALSE;
4426 }
4427
4428 return TRUE;
4429 }
GDB Binutils - Deliverables
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