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[binutils.git] / bfd / elfxx-tilegx.c
blob2aaa3d317570a6172cd351cda540a28182bde4d6
1 /* TILE-Gx-specific support for ELF.
2 Copyright 2011 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 "bfd.h"
22 #include "sysdep.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 2, /* size (0 = byte, 1 = short, 2 = long) */
76 32, /* bitsize */
77 FALSE, /* pc_relative */
78 0, /* bitpos */
79 complain_overflow_bitfield, /* complain_on_overflow */
80 bfd_elf_generic_reloc, /* special_function */
81 "R_TILEGX_NONE", /* name */
82 FALSE, /* partial_inplace */
83 0, /* src_mask */
84 0, /* dst_mask */
85 FALSE), /* pcrel_offset */
86 #ifdef BFD64
87 /* A 64 bit absolute relocation. */
88 HOWTO (R_TILEGX_64, /* type */
89 0, /* rightshift */
90 4, /* size (0 = byte, 1 = short, 2 = long) */
91 64, /* bitsize */
92 FALSE, /* pc_relative */
93 0, /* bitpos */
94 complain_overflow_dont, /* complain_on_overflow */
95 bfd_elf_generic_reloc, /* special_function */
96 "R_TILEGX_64", /* name */
97 FALSE, /* partial_inplace */
98 0, /* src_mask */
99 0xffffffffffffffffULL, /* dst_mask */
100 FALSE), /* pcrel_offset */
101 #endif
102 /* A 32 bit absolute relocation. */
103 HOWTO (R_TILEGX_32, /* type */
104 0, /* rightshift */
105 2, /* size (0 = byte, 1 = short, 2 = long) */
106 32, /* bitsize */
107 FALSE, /* pc_relative */
108 0, /* bitpos */
109 complain_overflow_dont, /* complain_on_overflow */
110 bfd_elf_generic_reloc, /* special_function */
111 "R_TILEGX_32", /* name */
112 FALSE, /* partial_inplace */
113 0, /* src_mask */
114 0xffffffff, /* dst_mask */
115 FALSE), /* pcrel_offset */
116
117 /* A 16 bit absolute relocation. */
118 HOWTO (R_TILEGX_16, /* type */
119 0, /* rightshift */
120 1, /* size (0 = byte, 1 = short, 2 = long) */
121 16, /* bitsize */
122 FALSE, /* pc_relative */
123 0, /* bitpos */
124 complain_overflow_bitfield, /* complain_on_overflow */
125 bfd_elf_generic_reloc, /* special_function */
126 "R_TILEGX_16", /* name */
127 FALSE, /* partial_inplace */
128 0, /* src_mask */
129 0xffff, /* dst_mask */
130 FALSE), /* pcrel_offset */
131
132 /* An 8 bit absolute relocation. */
133 HOWTO (R_TILEGX_8, /* type */
134 0, /* rightshift */
135 0, /* size (0 = byte, 1 = short, 2 = long) */
136 8, /* bitsize */
137 FALSE, /* pc_relative */
138 0, /* bitpos */
139 complain_overflow_unsigned, /* complain_on_overflow */
140 bfd_elf_generic_reloc, /* special_function */
141 "R_TILEGX_8", /* name */
142 FALSE, /* partial_inplace */
143 0, /* src_mask */
144 0xff, /* dst_mask */
145 FALSE), /* pcrel_offset */
146 #ifdef BFD64
147 /* A 64 bit pc-relative relocation. */
148 HOWTO (R_TILEGX_64_PCREL,/* type */
149 0, /* rightshift */
150 4, /* size (0 = byte, 1 = short, 2 = long) */
151 64, /* bitsize */
152 TRUE, /* pc_relative */
153 0, /* bitpos */
154 complain_overflow_dont, /* complain_on_overflow */
155 bfd_elf_generic_reloc, /* special_function */
156 "R_TILEGX_32_PCREL", /* name */
157 FALSE, /* partial_inplace */
158 0, /* src_mask */
159 0xffffffffffffffffULL, /* dst_mask */
160 TRUE), /* pcrel_offset */
161 #endif
162 /* A 32 bit pc-relative relocation. */
163 HOWTO (R_TILEGX_32_PCREL,/* type */
164 0, /* rightshift */
165 2, /* size (0 = byte, 1 = short, 2 = long) */
166 32, /* bitsize */
167 TRUE, /* pc_relative */
168 0, /* bitpos */
169 complain_overflow_dont, /* complain_on_overflow */
170 bfd_elf_generic_reloc, /* special_function */
171 "R_TILEGX_32_PCREL", /* name */
172 FALSE, /* partial_inplace */
173 0, /* src_mask */
174 0xffffffff, /* dst_mask */
175 TRUE), /* pcrel_offset */
176
177 /* A 16 bit pc-relative relocation. */
178 HOWTO (R_TILEGX_16_PCREL,/* type */
179 0, /* rightshift */
180 1, /* size (0 = byte, 1 = short, 2 = long) */
181 16, /* bitsize */
182 TRUE, /* pc_relative */
183 0, /* bitpos */
184 complain_overflow_signed, /* complain_on_overflow */
185 bfd_elf_generic_reloc, /* special_function */
186 "R_TILEGX_16_PCREL", /* name */
187 FALSE, /* partial_inplace */
188 0, /* src_mask */
189 0xffff, /* dst_mask */
190 TRUE), /* pcrel_offset */
191
192 /* An 8 bit pc-relative relocation. */
193 HOWTO (R_TILEGX_8_PCREL, /* type */
194 0, /* rightshift */
195 0, /* size (0 = byte, 1 = short, 2 = long) */
196 8, /* bitsize */
197 TRUE, /* pc_relative */
198 0, /* bitpos */
199 complain_overflow_signed, /* complain_on_overflow */
200 bfd_elf_generic_reloc, /* special_function */
201 "R_TILEGX_8_PCREL",/* name */
202 FALSE, /* partial_inplace */
203 0, /* src_mask */
204 0xff, /* dst_mask */
205 TRUE), /* pcrel_offset */
206
207 /* A 16 bit relocation without overflow. */
208 HOWTO (R_TILEGX_HW0, /* type */
209 0, /* rightshift */
210 1, /* size (0 = byte, 1 = short, 2 = long) */
211 16, /* bitsize */
212 FALSE, /* pc_relative */
213 0, /* bitpos */
214 complain_overflow_dont,/* complain_on_overflow */
215 bfd_elf_generic_reloc, /* special_function */
216 "R_TILEGX_HW0", /* name */
217 FALSE, /* partial_inplace */
218 0, /* src_mask */
219 0xffff, /* dst_mask */
220 FALSE), /* pcrel_offset */
221
222 /* A 16 bit relocation without overflow. */
223 HOWTO (R_TILEGX_HW1, /* type */
224 16, /* rightshift */
225 1, /* size (0 = byte, 1 = short, 2 = long) */
226 16, /* bitsize */
227 FALSE, /* pc_relative */
228 0, /* bitpos */
229 complain_overflow_dont,/* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_TILEGX_HW1", /* name */
232 FALSE, /* partial_inplace */
233 0, /* src_mask */
234 0xffff, /* dst_mask */
235 FALSE), /* pcrel_offset */
236
237 /* A 16 bit relocation without overflow. */
238 HOWTO (R_TILEGX_HW2, /* type */
239 32, /* rightshift */
240 1, /* size (0 = byte, 1 = short, 2 = long) */
241 16, /* bitsize */
242 FALSE, /* pc_relative */
243 0, /* bitpos */
244 complain_overflow_dont,/* complain_on_overflow */
245 bfd_elf_generic_reloc, /* special_function */
246 "R_TILEGX_HW2", /* name */
247 FALSE, /* partial_inplace */
248 0, /* src_mask */
249 0xffff, /* dst_mask */
250 FALSE), /* pcrel_offset */
251
252 /* A 16 bit relocation without overflow. */
253 HOWTO (R_TILEGX_HW3, /* type */
254 48, /* rightshift */
255 1, /* size (0 = byte, 1 = short, 2 = long) */
256 16, /* bitsize */
257 FALSE, /* pc_relative */
258 0, /* bitpos */
259 complain_overflow_dont,/* complain_on_overflow */
260 bfd_elf_generic_reloc, /* special_function */
261 "R_TILEGX_HW3", /* name */
262 FALSE, /* partial_inplace */
263 0, /* src_mask */
264 0xffff, /* dst_mask */
265 FALSE), /* pcrel_offset */
266
267 /* A 16 bit relocation with overflow. */
268 HOWTO (R_TILEGX_HW0_LAST, /* type */
269 0, /* rightshift */
270 1, /* size (0 = byte, 1 = short, 2 = long) */
271 16, /* bitsize */
272 FALSE, /* pc_relative */
273 0, /* bitpos */
274 complain_overflow_signed,/* complain_on_overflow */
275 bfd_elf_generic_reloc, /* special_function */
276 "R_TILEGX_HW0_LAST", /* name */
277 FALSE, /* partial_inplace */
278 0, /* src_mask */
279 0xffff, /* dst_mask */
280 FALSE), /* pcrel_offset */
281
282 /* A 16 bit relocation with overflow. */
283 HOWTO (R_TILEGX_HW1_LAST, /* type */
284 16, /* rightshift */
285 1, /* size (0 = byte, 1 = short, 2 = long) */
286 16, /* bitsize */
287 FALSE, /* pc_relative */
288 0, /* bitpos */
289 complain_overflow_signed,/* complain_on_overflow */
290 bfd_elf_generic_reloc, /* special_function */
291 "R_TILEGX_HW1_LAST", /* name */
292 FALSE, /* partial_inplace */
293 0, /* src_mask */
294 0xffff, /* dst_mask */
295 FALSE), /* pcrel_offset */
296
297 /* A 16 bit relocation with overflow. */
298 HOWTO (R_TILEGX_HW2_LAST, /* type */
299 32, /* rightshift */
300 1, /* size (0 = byte, 1 = short, 2 = long) */
301 16, /* bitsize */
302 FALSE, /* pc_relative */
303 0, /* bitpos */
304 complain_overflow_signed,/* complain_on_overflow */
305 bfd_elf_generic_reloc, /* special_function */
306 "R_TILEGX_HW2_LAST", /* name */
307 FALSE, /* partial_inplace */
308 0, /* src_mask */
309 0xffff, /* dst_mask */
310 FALSE), /* pcrel_offset */
311
312 HOWTO (R_TILEGX_COPY, /* type */
313 0, /* rightshift */
314 0, /* size (0 = byte, 1 = short, 2 = long) */
315 0, /* bitsize */
316 FALSE, /* pc_relative */
317 0, /* bitpos */
318 complain_overflow_dont, /* complain_on_overflow */
319 bfd_elf_generic_reloc, /* special_function */
320 "R_TILEGX_COPY", /* name */
321 FALSE, /* partial_inplace */
322 0, /* src_mask */
323 0, /* dst_mask */
324 TRUE), /* pcrel_offset */
325
326 HOWTO (R_TILEGX_GLOB_DAT, /* type */
327 0, /* rightshift */
328 0, /* size (0 = byte, 1 = short, 2 = long) */
329 0, /* bitsize */
330 FALSE, /* pc_relative */
331 0, /* bitpos */
332 complain_overflow_dont, /* complain_on_overflow */
333 bfd_elf_generic_reloc, /* special_function */
334 "R_TILEGX_GLOB_DAT", /* name */
335 FALSE, /* partial_inplace */
336 0, /* src_mask */
337 0, /* dst_mask */
338 TRUE), /* pcrel_offset */
339
340 HOWTO (R_TILEGX_JMP_SLOT, /* type */
341 0, /* rightshift */
342 0, /* size (0 = byte, 1 = short, 2 = long) */
343 0, /* bitsize */
344 FALSE, /* pc_relative */
345 0, /* bitpos */
346 complain_overflow_dont, /* complain_on_overflow */
347 bfd_elf_generic_reloc, /* special_function */
348 "R_TILEGX_JMP_SLOT", /* name */
349 FALSE, /* partial_inplace */
350 0, /* src_mask */
351 0, /* dst_mask */
352 TRUE), /* pcrel_offset */
353
354 HOWTO (R_TILEGX_RELATIVE, /* type */
355 0, /* rightshift */
356 0, /* size (0 = byte, 1 = short, 2 = long) */
357 0, /* bitsize */
358 FALSE, /* pc_relative */
359 0, /* bitpos */
360 complain_overflow_dont, /* complain_on_overflow */
361 bfd_elf_generic_reloc, /* special_function */
362 "R_TILEGX_RELATIVE", /* name */
363 FALSE, /* partial_inplace */
364 0, /* src_mask */
365 0, /* dst_mask */
366 TRUE), /* pcrel_offset */
367
368 HOWTO (R_TILEGX_BROFF_X1, /* type */
369 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
371 17, /* bitsize */
372 TRUE, /* pc_relative */
373 0, /* bitpos */
374 complain_overflow_signed, /* complain_on_overflow */
375 bfd_elf_generic_reloc, /* special_function */
376 "R_TILEGX_BROFF_X1", /* name */
377 FALSE, /* partial_inplace */
378 0, /* src_mask */
379 -1, /* dst_mask */
380 TRUE), /* pcrel_offset */
381
382 HOWTO (R_TILEGX_JUMPOFF_X1, /* type */
383 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
384 2, /* size (0 = byte, 1 = short, 2 = long) */
385 27, /* bitsize */
386 TRUE, /* pc_relative */
387 0, /* bitpos */
388 complain_overflow_signed,/* complain_on_overflow */
389 bfd_elf_generic_reloc, /* special_function */
390 "R_TILEGX_JUMPOFF_X1", /* name */
391 FALSE, /* partial_inplace */
392 0, /* src_mask */
393 -1, /* dst_mask */
394 TRUE), /* pcrel_offset */
395
396 HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */
397 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
398 2, /* size (0 = byte, 1 = short, 2 = long) */
399 27, /* bitsize */
400 TRUE, /* pc_relative */
401 0, /* bitpos */
402 complain_overflow_signed,/* complain_on_overflow */
403 bfd_elf_generic_reloc, /* special_function */
404 "R_TILEGX_JUMPOFF_X1_PLT", /* name */
405 FALSE, /* partial_inplace */
406 0, /* src_mask */
407 -1, /* dst_mask */
408 TRUE), /* pcrel_offset */
409
410 #define TILEGX_IMM_HOWTO(name, size, bitsize) \
411 HOWTO (name, 0, size, bitsize, FALSE, 0, \
412 complain_overflow_signed, bfd_elf_generic_reloc, \
413 #name, FALSE, 0, -1, FALSE)
414
415 #define TILEGX_UIMM_HOWTO(name, size, bitsize) \
416 HOWTO (name, 0, size, bitsize, FALSE, 0, \
417 complain_overflow_unsigned, bfd_elf_generic_reloc, \
418 #name, FALSE, 0, -1, FALSE)
419
420 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 0, 8),
421 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0, 0, 8),
422 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1, 0, 8),
423 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1, 0, 8),
424 TILEGX_IMM_HOWTO(R_TILEGX_DEST_IMM8_X1, 0, 8),
425
426 TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 1, 14),
427 TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 1, 14),
428
429 TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 0, 6),
430 TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 0, 6),
431
432 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X0, 0, 6),
433 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X1, 0, 6),
434 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y0, 0, 6),
435 TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y1, 0, 6),
436
437 #define TILEGX_IMM16_HOWTO(name, rshift) \
438 HOWTO (name, rshift, 1, 16, FALSE, 0, \
439 complain_overflow_dont, bfd_elf_generic_reloc, \
440 #name, FALSE, 0, 0xffff, FALSE)
441
442 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0, 0),
443 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0, 0),
444 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1, 16),
445 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1, 16),
446 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2, 32),
447 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2, 32),
448 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3, 48),
449 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3, 48),
450
451 #define TILEGX_IMM16_HOWTO_LAST(name, rshift) \
452 HOWTO (name, rshift, 1, 16, FALSE, 0, \
453 complain_overflow_signed, bfd_elf_generic_reloc, \
454 #name, FALSE, 0, 0xffff, FALSE)
455
456 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST, 0),
457 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST, 0),
458 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST, 16),
459 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST, 16),
460 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST, 32),
461 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST, 32),
462
463 /* PC-relative offsets. */
464
465 #define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \
466 HOWTO (name, rshift, 1, 16, TRUE, 0, \
467 complain_overflow_dont, bfd_elf_generic_reloc, \
468 #name, FALSE, 0, 0xffff, TRUE)
469
470 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PCREL, 0),
471 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PCREL, 0),
472 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PCREL, 16),
473 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PCREL, 16),
474 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PCREL, 32),
475 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PCREL, 32),
476 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PCREL, 48),
477 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PCREL, 48),
478
479 #define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \
480 HOWTO (name, rshift, 1, 16, TRUE, 0, \
481 complain_overflow_signed, bfd_elf_generic_reloc, \
482 #name, FALSE, 0, 0xffff, TRUE)
483
484 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PCREL, 0),
485 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PCREL, 0),
486 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PCREL, 16),
487 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PCREL, 16),
488 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PCREL, 32),
489 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PCREL, 32),
490
491 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0),
492 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0),
493 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1_GOT, 16),
494 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1_GOT, 16),
495 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2_GOT, 32),
496 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2_GOT, 32),
497 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3_GOT, 48),
498 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3_GOT, 48),
499
500 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
501 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
502 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
503 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
504 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST_GOT, 32),
505 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST_GOT, 32),
506
507 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
508 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
509 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1_TLS_GD, 16),
510 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1_TLS_GD, 16),
511 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2_TLS_GD, 32),
512 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2_TLS_GD, 32),
513 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3_TLS_GD, 48),
514 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3_TLS_GD, 48),
515
516 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0),
517 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0),
518 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16),
519 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16),
520 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD, 32),
521 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD, 32),
522
523 #define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \
524 HOWTO (name, rshift, 1, 16, FALSE, 0, \
525 complain_overflow_dont, bfd_elf_generic_reloc, \
526 #name, FALSE, 0, 0xffff, TRUE)
527
528 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0),
529 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0),
530 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW1_TLS_IE, 16),
531 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW1_TLS_IE, 16),
532 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW2_TLS_IE, 32),
533 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW2_TLS_IE, 32),
534 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW3_TLS_IE, 48),
535 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW3_TLS_IE, 48),
536
537 #define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
538 HOWTO (name, rshift, 1, 16, FALSE, 0, \
539 complain_overflow_signed, bfd_elf_generic_reloc, \
540 #name, FALSE, 0, 0xffff, TRUE)
541
542 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0),
543 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0),
544 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16),
545 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16),
546 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE, 32),
547 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE, 32),
548
549 HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
550 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
551 FALSE, 0, 0, TRUE),
552 HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
553 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
554 FALSE, 0, -1, TRUE),
555 HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
556 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
557 FALSE, 0, 0, TRUE),
558
559 HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
560 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
561 FALSE, 0, 0, TRUE),
562 HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield,
563 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
564 FALSE, 0, -1, TRUE),
565 HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
566 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
567 FALSE, 0, 0, TRUE)
568 };
569
570 static reloc_howto_type tilegx_elf_howto_table2 [] =
571 {
572 /* GNU extension to record C++ vtable hierarchy */
573 HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
574 0, /* rightshift */
575 4, /* size (0 = byte, 1 = short, 2 = long) */
576 0, /* bitsize */
577 FALSE, /* pc_relative */
578 0, /* bitpos */
579 complain_overflow_dont, /* complain_on_overflow */
580 NULL, /* special_function */
581 "R_TILEGX_GNU_VTINHERIT", /* name */
582 FALSE, /* partial_inplace */
583 0, /* src_mask */
584 0, /* dst_mask */
585 FALSE), /* pcrel_offset */
586
587 /* GNU extension to record C++ vtable member usage */
588 HOWTO (R_TILEGX_GNU_VTENTRY, /* type */
589 0, /* rightshift */
590 4, /* size (0 = byte, 1 = short, 2 = long) */
591 0, /* bitsize */
592 FALSE, /* pc_relative */
593 0, /* bitpos */
594 complain_overflow_dont, /* complain_on_overflow */
595 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
596 "R_TILEGX_GNU_VTENTRY", /* name */
597 FALSE, /* partial_inplace */
598 0, /* src_mask */
599 0, /* dst_mask */
600 FALSE), /* pcrel_offset */
601
602 };
603 \f
604 /* Map BFD reloc types to TILEGX ELF reloc types. */
605
606 typedef struct tilegx_reloc_map
607 {
608 bfd_reloc_code_real_type bfd_reloc_val;
609 unsigned int tilegx_reloc_val;
610 reloc_howto_type * table;
611 } reloc_map;
612
613 static const reloc_map tilegx_reloc_map [] =
614 {
615 #define TH_REMAP(bfd, tilegx) \
616 { bfd, tilegx, tilegx_elf_howto_table },
617
618 /* Standard relocations. */
619 TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE)
620 TH_REMAP (BFD_RELOC_64, R_TILEGX_64)
621 TH_REMAP (BFD_RELOC_32, R_TILEGX_32)
622 TH_REMAP (BFD_RELOC_16, R_TILEGX_16)
623 TH_REMAP (BFD_RELOC_8, R_TILEGX_8)
624 TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL)
625 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL)
626 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL)
627 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL)
628
629 #define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
630
631 /* Custom relocations. */
632 SIMPLE_REMAP (TILEGX_HW0)
633 SIMPLE_REMAP (TILEGX_HW1)
634 SIMPLE_REMAP (TILEGX_HW2)
635 SIMPLE_REMAP (TILEGX_HW3)
636 SIMPLE_REMAP (TILEGX_HW0_LAST)
637 SIMPLE_REMAP (TILEGX_HW1_LAST)
638 SIMPLE_REMAP (TILEGX_HW2_LAST)
639 SIMPLE_REMAP (TILEGX_COPY)
640 SIMPLE_REMAP (TILEGX_GLOB_DAT)
641 SIMPLE_REMAP (TILEGX_JMP_SLOT)
642 SIMPLE_REMAP (TILEGX_RELATIVE)
643 SIMPLE_REMAP (TILEGX_BROFF_X1)
644 SIMPLE_REMAP (TILEGX_JUMPOFF_X1)
645 SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT)
646 SIMPLE_REMAP (TILEGX_IMM8_X0)
647 SIMPLE_REMAP (TILEGX_IMM8_Y0)
648 SIMPLE_REMAP (TILEGX_IMM8_X1)
649 SIMPLE_REMAP (TILEGX_IMM8_Y1)
650 SIMPLE_REMAP (TILEGX_DEST_IMM8_X1)
651 SIMPLE_REMAP (TILEGX_MT_IMM14_X1)
652 SIMPLE_REMAP (TILEGX_MF_IMM14_X1)
653 SIMPLE_REMAP (TILEGX_MMSTART_X0)
654 SIMPLE_REMAP (TILEGX_MMEND_X0)
655 SIMPLE_REMAP (TILEGX_SHAMT_X0)
656 SIMPLE_REMAP (TILEGX_SHAMT_X1)
657 SIMPLE_REMAP (TILEGX_SHAMT_Y0)
658 SIMPLE_REMAP (TILEGX_SHAMT_Y1)
659 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0)
660 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0)
661 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1)
662 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1)
663 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2)
664 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2)
665 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3)
666 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3)
667 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST)
668 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST)
669 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST)
670 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST)
671 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST)
672 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST)
673 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL)
674 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL)
675 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL)
676 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL)
677 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL)
678 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL)
679 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL)
680 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL)
681 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL)
682 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL)
683 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL)
684 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL)
685 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL)
686 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
687 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
688 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
689 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_GOT)
690 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_GOT)
691 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_GOT)
692 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_GOT)
693 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_GOT)
694 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_GOT)
695 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
696 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
697 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
698 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
699 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_GOT)
700 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_GOT)
701 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
702 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
703 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_TLS_GD)
704 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_TLS_GD)
705 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_TLS_GD)
706 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_TLS_GD)
707 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_TLS_GD)
708 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_TLS_GD)
709 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD)
710 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD)
711 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD)
712 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
713 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_TLS_GD)
714 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_TLS_GD)
715 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
716 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
717 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_TLS_IE)
718 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_TLS_IE)
719 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_TLS_IE)
720 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_TLS_IE)
721 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_TLS_IE)
722 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_TLS_IE)
723 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
724 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
725 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
726 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE)
727 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_TLS_IE)
728 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_TLS_IE)
729
730 SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
731 SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
732 SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
733
734 SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
735 SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
736 SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
737
738 #undef SIMPLE_REMAP
739 #undef TH_REMAP
740
741 { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 },
742 { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 },
743 };
744
745
746
747 /* The TILE-Gx linker needs to keep track of the number of relocs that it
748 decides to copy as dynamic relocs in check_relocs for each symbol.
749 This is so that it can later discard them if they are found to be
750 unnecessary. We store the information in a field extending the
751 regular ELF linker hash table. */
752
753 struct tilegx_elf_dyn_relocs
754 {
755 struct tilegx_elf_dyn_relocs *next;
756
757 /* The input section of the reloc. */
758 asection *sec;
759
760 /* Total number of relocs copied for the input section. */
761 bfd_size_type count;
762
763 /* Number of pc-relative relocs copied for the input section. */
764 bfd_size_type pc_count;
765 };
766
767 /* TILEGX ELF linker hash entry. */
768
769 struct tilegx_elf_link_hash_entry
770 {
771 struct elf_link_hash_entry elf;
772
773 /* Track dynamic relocs copied for this symbol. */
774 struct tilegx_elf_dyn_relocs *dyn_relocs;
775
776 #define GOT_UNKNOWN 0
777 #define GOT_NORMAL 1
778 #define GOT_TLS_GD 2
779 #define GOT_TLS_IE 4
780 unsigned char tls_type;
781 };
782
783 #define tilegx_elf_hash_entry(ent) \
784 ((struct tilegx_elf_link_hash_entry *)(ent))
785
786 struct _bfd_tilegx_elf_obj_tdata
787 {
788 struct elf_obj_tdata root;
789
790 /* tls_type for each local got entry. */
791 char *local_got_tls_type;
792 };
793
794 #define _bfd_tilegx_elf_tdata(abfd) \
795 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
796
797 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
798 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
799
800 #define is_tilegx_elf(bfd) \
801 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
802 && elf_tdata (bfd) != NULL \
803 && elf_object_id (bfd) == TILEGX_ELF_DATA)
804
805 #include "elf/common.h"
806 #include "elf/internal.h"
807
808 struct tilegx_elf_link_hash_table
809 {
810 struct elf_link_hash_table elf;
811
812 int bytes_per_word;
813 int word_align_power;
814 int bytes_per_rela;
815 int dtpmod_reloc;
816 int dtpoff_reloc;
817 int tpoff_reloc;
818 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
819 bfd_vma (*r_symndx) (bfd_vma);
820 void (*put_word) (bfd *, bfd_vma, void *);
821 const char *dynamic_interpreter;
822
823 /* Short-cuts to get to dynamic linker sections. */
824 asection *sdynbss;
825 asection *srelbss;
826
827 /* Small local sym to section mapping cache. */
828 struct sym_cache sym_cache;
829 };
830
831
832 /* Get the Tile ELF linker hash table from a link_info structure. */
833 #define tilegx_elf_hash_table(p) \
834 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
835 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
836
837 #ifdef BFD64
838 static bfd_vma
839 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
840 bfd_vma rel_index,
841 bfd_vma type)
842 {
843 return ELF64_R_INFO (rel_index, type);
844 }
845
846 static bfd_vma
847 tilegx_elf_r_symndx_64 (bfd_vma r_info)
848 {
849 return ELF64_R_SYM (r_info);
850 }
851
852 static void
853 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
854 {
855 bfd_put_64 (abfd, val, ptr);
856 }
857 #endif /* BFD64 */
858
859 static bfd_vma
860 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
861 bfd_vma rel_index,
862 bfd_vma type)
863 {
864 return ELF32_R_INFO (rel_index, type);
865 }
866
867 static bfd_vma
868 tilegx_elf_r_symndx_32 (bfd_vma r_info)
869 {
870 return ELF32_R_SYM (r_info);
871 }
872
873 static void
874 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
875 {
876 bfd_put_32 (abfd, val, ptr);
877 }
878
879 reloc_howto_type *
880 tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
881 bfd_reloc_code_real_type code)
882 {
883 unsigned int i;
884
885 for (i = ARRAY_SIZE (tilegx_reloc_map); --i;)
886 {
887 const reloc_map * entry;
888
889 entry = tilegx_reloc_map + i;
890
891 if (entry->bfd_reloc_val == code)
892 return entry->table + (entry->tilegx_reloc_val
893 - entry->table[0].type);
894 }
895
896 return NULL;
897 }
898
899 reloc_howto_type *
900 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
901 const char *r_name)
902 {
903 unsigned int i;
904
905 for (i = 0;
906 i < (sizeof (tilegx_elf_howto_table)
907 / sizeof (tilegx_elf_howto_table[0]));
908 i++)
909 if (tilegx_elf_howto_table[i].name != NULL
910 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
911 return &tilegx_elf_howto_table[i];
912
913 return NULL;
914 }
915
916 void
917 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
918 arelent *cache_ptr,
919 Elf_Internal_Rela *dst)
920 {
921 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
922
923 if (r_type <= (unsigned int) R_TILEGX_TLS_TPOFF32)
924 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
925 else if (r_type - R_TILEGX_GNU_VTINHERIT
926 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
927 cache_ptr->howto
928 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
929 else
930 abort ();
931 }
932
933 typedef tilegx_bundle_bits (*tilegx_create_func)(int);
934
935 static const tilegx_create_func reloc_to_create_func[] =
936 {
937 /* The first twenty relocation types don't correspond to operands */
938 NULL,
939 NULL,
940 NULL,
941 NULL,
942 NULL,
943 NULL,
944 NULL,
945 NULL,
946 NULL,
947 NULL,
948 NULL,
949 NULL,
950 NULL,
951 NULL,
952 NULL,
953 NULL,
954 NULL,
955 NULL,
956 NULL,
957 NULL,
958
959 /* The remaining relocations are used for immediate operands */
960 create_BrOff_X1,
961 create_JumpOff_X1,
962 create_JumpOff_X1,
963 create_Imm8_X0,
964 create_Imm8_Y0,
965 create_Imm8_X1,
966 create_Imm8_Y1,
967 create_Dest_Imm8_X1,
968 create_MT_Imm14_X1,
969 create_MF_Imm14_X1,
970 create_BFStart_X0,
971 create_BFEnd_X0,
972 create_ShAmt_X0,
973 create_ShAmt_X1,
974 create_ShAmt_Y0,
975 create_ShAmt_Y1,
976 create_Imm16_X0,
977 create_Imm16_X1,
978 create_Imm16_X0,
979 create_Imm16_X1,
980 create_Imm16_X0,
981 create_Imm16_X1,
982 create_Imm16_X0,
983 create_Imm16_X1,
984 create_Imm16_X0,
985 create_Imm16_X1,
986 create_Imm16_X0,
987 create_Imm16_X1,
988 create_Imm16_X0,
989 create_Imm16_X1,
990 create_Imm16_X0,
991 create_Imm16_X1,
992 create_Imm16_X0,
993 create_Imm16_X1,
994 create_Imm16_X0,
995 create_Imm16_X1,
996 create_Imm16_X0,
997 create_Imm16_X1,
998 create_Imm16_X0,
999 create_Imm16_X1,
1000 create_Imm16_X0,
1001 create_Imm16_X1,
1002 create_Imm16_X0,
1003 create_Imm16_X1,
1004 create_Imm16_X0,
1005 create_Imm16_X1,
1006 create_Imm16_X0,
1007 create_Imm16_X1,
1008 create_Imm16_X0,
1009 create_Imm16_X1,
1010 create_Imm16_X0,
1011 create_Imm16_X1,
1012 create_Imm16_X0,
1013 create_Imm16_X1,
1014 create_Imm16_X0,
1015 create_Imm16_X1,
1016 create_Imm16_X0,
1017 create_Imm16_X1,
1018 create_Imm16_X0,
1019 create_Imm16_X1,
1020 create_Imm16_X0,
1021 create_Imm16_X1,
1022 create_Imm16_X0,
1023 create_Imm16_X1,
1024 create_Imm16_X0,
1025 create_Imm16_X1,
1026 create_Imm16_X0,
1027 create_Imm16_X1,
1028 create_Imm16_X0,
1029 create_Imm16_X1,
1030 create_Imm16_X0,
1031 create_Imm16_X1,
1032 create_Imm16_X0,
1033 create_Imm16_X1,
1034 create_Imm16_X0,
1035 create_Imm16_X1,
1036 create_Imm16_X0,
1037 create_Imm16_X1,
1038 create_Imm16_X0,
1039 create_Imm16_X1,
1040 create_Imm16_X0,
1041 create_Imm16_X1,
1042 create_Imm16_X0,
1043 create_Imm16_X1,
1044 create_Imm16_X0,
1045 create_Imm16_X1
1046 };
1047
1048 static void
1049 tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1050 {
1051 const struct elf_backend_data *bed;
1052 bfd_byte *loc;
1053
1054 bed = get_elf_backend_data (abfd);
1055 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1056 bed->s->swap_reloca_out (abfd, rel, loc);
1057 }
1058
1059 /* PLT/GOT stuff */
1060
1061 /* The procedure linkage table starts with the following header:
1062
1063 ld_add r28, r27, 8
1064 ld r27, r27
1065 {
1066 jr r27
1067 info 10 ## SP not offset, return PC in LR
1068 }
1069
1070 Subsequent entries are the following, jumping to the header at the end:
1071
1072 {
1073 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1074 lnk r26
1075 }
1076 1:
1077 {
1078 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1079 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1080 }
1081 {
1082 add r28, r26, r28
1083 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1084 }
1085 {
1086 add r27, r26, r27
1087 ld r28, r28
1088 info 10 ## SP not offset, return PC in LR
1089 }
1090 {
1091 shl16insli r29, zero, MY_PLT_INDEX
1092 jr r28
1093 }
1094
1095 This code sequence lets the code at at the start of the PLT determine
1096 which PLT entry was executed by examining 'r29'.
1097
1098 Note that MY_PLT_INDEX skips over the header entries, so the first
1099 actual jump table entry has index zero.
1100
1101 If the offset fits in 16 bits,
1102
1103 lnk r26
1104 1:
1105 {
1106 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1107 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1108 }
1109 {
1110 shl16insli r29, zero, MY_PLT_INDEX
1111 ld r28, r28
1112 }
1113 {
1114 add r27, r26, r27
1115 jr r28
1116 }
1117 info 10 ## SP not offset, return PC in LR
1118
1119 For the purpose of backtracing, the procedure linkage table ends with the
1120 following tail entry:
1121
1122 info 10 ## SP not offset, return PC in LR
1123
1124 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1125 the GOT being multiples of 4 instead of 8.
1126
1127 */
1128
1129 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1130 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1131 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1132
1133 #define PLT_HEADER_SIZE \
1134 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1135 #define PLT_ENTRY_SIZE \
1136 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1137 #define PLT_TAIL_SIZE \
1138 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1139
1140 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1141
1142 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1143
1144 static const bfd_byte
1145 tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1146 {
1147 0x00, 0x30, 0x48, 0x51,
1148 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1149 0x00, 0x30, 0xbc, 0x35,
1150 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1151 0xff, 0xaf, 0x30, 0x40,
1152 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1153 };
1154
1155 static const bfd_byte
1156 tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1157 {
1158 0xdc, 0x0f, 0x00, 0x10,
1159 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1160 0xdb, 0x0f, 0x00, 0x10,
1161 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1162 0x9c, 0xc6, 0x0d, 0xd0,
1163 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1164 0x9b, 0xb6, 0xc5, 0xad,
1165 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1166 0xdd, 0x0f, 0x00, 0x70,
1167 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1168 };
1169
1170 static const bfd_byte
1171 tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1172 {
1173 0x00, 0x30, 0x48, 0x51,
1174 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1175 0x9c, 0x06, 0x00, 0x90,
1176 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1177 0xdd, 0x0f, 0x00, 0x70,
1178 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1179 0x9b, 0xb6, 0x0d, 0x50,
1180 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1181 0x00, 0x30, 0x48, 0xd1,
1182 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1183 };
1184
1185 /* Reuse an existing info 10 bundle. */
1186 static const bfd_byte const *tilegx64_plt_tail_entry =
1187 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1188
1189 static const bfd_byte
1190 tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1191 {
1192 0x00, 0x30, 0x48, 0x51,
1193 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1194 0x00, 0x30, 0xbc, 0x35,
1195 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1196 0xff, 0xaf, 0x30, 0x40,
1197 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1198 };
1199
1200 static const bfd_byte
1201 tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1202 {
1203 0xdc, 0x0f, 0x00, 0x10,
1204 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1205 0xdb, 0x0f, 0x00, 0x10,
1206 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1207 0x9c, 0xc6, 0x0d, 0xd0,
1208 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1209 0x9b, 0xb6, 0xc5, 0xad,
1210 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1211 0xdd, 0x0f, 0x00, 0x70,
1212 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1213 };
1214
1215 static const bfd_byte
1216 tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1217 {
1218 0x00, 0x30, 0x48, 0x51,
1219 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1220 0x9c, 0x06, 0x00, 0x90,
1221 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1222 0xdd, 0x0f, 0x00, 0x70,
1223 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1224 0x9b, 0xb6, 0x0d, 0x50,
1225 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1226 0x00, 0x30, 0x48, 0xd1,
1227 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1228 };
1229
1230 /* Reuse an existing info 10 bundle. */
1231 static const bfd_byte const *tilegx32_plt_tail_entry =
1232 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1233
1234 static int
1235 tilegx_plt_entry_build (bfd *output_bfd,
1236 struct tilegx_elf_link_hash_table *htab,
1237 asection *splt, asection *sgotplt,
1238 bfd_vma offset, bfd_vma *r_offset)
1239 {
1240 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1241 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1242 + GOTPLT_HEADER_SIZE (htab));
1243 tilegx_bundle_bits *pc;
1244
1245 /* Compute the distance from the got entry to the lnk. */
1246 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1247 + sgotplt->output_offset
1248 + got_offset
1249 - splt->output_section->vma
1250 - splt->output_offset
1251 - offset
1252 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1253
1254 /* Compute the distance to GOTPLT[0]. */
1255 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1256
1257 /* Check whether we can use the short plt entry with 16-bit offset. */
1258 bfd_boolean short_plt_entry =
1259 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1260
1261 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1262 (ABI_64_P (output_bfd) ?
1263 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1264 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1265
1266 /* Copy the plt entry template. */
1267 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1268
1269 /* Write the immediate offsets. */
1270 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1271
1272 if (short_plt_entry)
1273 {
1274 /* { lnk r28 } */
1275 pc++;
1276
1277 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1278 *pc++ |= create_Imm16_X0 (dist_got_entry)
1279 | create_Imm16_X1 (dist_got0);
1280
1281 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1282 *pc++ |= create_Imm16_X0 (plt_index);
1283 }
1284 else
1285 {
1286 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1287 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1288
1289 /* { moveli r27, &GOTPLT[0] ;
1290 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1291 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1292 | create_Imm16_X1 (dist_got_entry);
1293
1294 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1295 *pc++ |= create_Imm16_X1 (dist_got0);
1296
1297 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1298 pc++;
1299
1300 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1301 *pc++ |= create_Imm16_X0 (plt_index);
1302 }
1303
1304 /* Set the relocation offset. */
1305 *r_offset = got_offset;
1306
1307 return plt_index;
1308 }
1309
1310 /* Create an entry in an TILEGX ELF linker hash table. */
1311
1312 static struct bfd_hash_entry *
1313 link_hash_newfunc (struct bfd_hash_entry *entry,
1314 struct bfd_hash_table *table, const char *string)
1315 {
1316 /* Allocate the structure if it has not already been allocated by a
1317 subclass. */
1318 if (entry == NULL)
1319 {
1320 entry =
1321 bfd_hash_allocate (table,
1322 sizeof (struct tilegx_elf_link_hash_entry));
1323 if (entry == NULL)
1324 return entry;
1325 }
1326
1327 /* Call the allocation method of the superclass. */
1328 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1329 if (entry != NULL)
1330 {
1331 struct tilegx_elf_link_hash_entry *eh;
1332
1333 eh = (struct tilegx_elf_link_hash_entry *) entry;
1334 eh->dyn_relocs = NULL;
1335 eh->tls_type = GOT_UNKNOWN;
1336 }
1337
1338 return entry;
1339 }
1340
1341 /* Create a TILEGX ELF linker hash table. */
1342
1343 struct bfd_link_hash_table *
1344 tilegx_elf_link_hash_table_create (bfd *abfd)
1345 {
1346 struct tilegx_elf_link_hash_table *ret;
1347 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1348
1349 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1350 if (ret == NULL)
1351 return NULL;
1352
1353 #ifdef BFD64
1354 if (ABI_64_P (abfd))
1355 {
1356 ret->bytes_per_word = 8;
1357 ret->word_align_power = 3;
1358 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1359 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1360 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1361 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1362 ret->r_info = tilegx_elf_r_info_64;
1363 ret->r_symndx = tilegx_elf_r_symndx_64;
1364 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1365 ret->put_word = tilegx_put_word_64;
1366 }
1367 else
1368 #endif
1369 {
1370 ret->bytes_per_word = 4;
1371 ret->word_align_power = 2;
1372 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1373 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1374 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1375 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1376 ret->r_info = tilegx_elf_r_info_32;
1377 ret->r_symndx = tilegx_elf_r_symndx_32;
1378 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1379 ret->put_word = tilegx_put_word_32;
1380 }
1381
1382 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1383 sizeof (struct tilegx_elf_link_hash_entry),
1384 TILEGX_ELF_DATA))
1385 {
1386 free (ret);
1387 return NULL;
1388 }
1389
1390 return &ret->elf.root;
1391 }
1392
1393 /* Create the .got section. */
1394
1395 static bfd_boolean
1396 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1397 {
1398 flagword flags;
1399 asection *s, *s_got;
1400 struct elf_link_hash_entry *h;
1401 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1402 struct elf_link_hash_table *htab = elf_hash_table (info);
1403
1404 /* This function may be called more than once. */
1405 s = bfd_get_section_by_name (abfd, ".got");
1406 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
1407 return TRUE;
1408
1409 flags = bed->dynamic_sec_flags;
1410
1411 s = bfd_make_section_with_flags (abfd,
1412 (bed->rela_plts_and_copies_p
1413 ? ".rela.got" : ".rel.got"),
1414 (bed->dynamic_sec_flags
1415 | SEC_READONLY));
1416 if (s == NULL
1417 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1418 return FALSE;
1419 htab->srelgot = s;
1420
1421 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1422 if (s == NULL
1423 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1424 return FALSE;
1425 htab->sgot = s;
1426
1427 /* The first bit of the global offset table is the header. */
1428 s->size += bed->got_header_size;
1429
1430 if (bed->want_got_plt)
1431 {
1432 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1433 if (s == NULL
1434 || !bfd_set_section_alignment (abfd, s,
1435 bed->s->log_file_align))
1436 return FALSE;
1437 htab->sgotplt = s;
1438
1439 /* Reserve room for the header. */
1440 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1441 }
1442
1443 if (bed->want_got_sym)
1444 {
1445 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1446 section. We don't do this in the linker script because we don't want
1447 to define the symbol if we are not creating a global offset
1448 table. */
1449 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1450 "_GLOBAL_OFFSET_TABLE_");
1451 elf_hash_table (info)->hgot = h;
1452 if (h == NULL)
1453 return FALSE;
1454 }
1455
1456 return TRUE;
1457 }
1458
1459 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1460 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1461 hash table. */
1462
1463 bfd_boolean
1464 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1465 struct bfd_link_info *info)
1466 {
1467 struct tilegx_elf_link_hash_table *htab;
1468
1469 htab = tilegx_elf_hash_table (info);
1470 BFD_ASSERT (htab != NULL);
1471
1472 if (!tilegx_elf_create_got_section (dynobj, info))
1473 return FALSE;
1474
1475 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1476 return FALSE;
1477
1478 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1479 if (!info->shared)
1480 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1481
1482 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1483 || (!info->shared && !htab->srelbss))
1484 abort ();
1485
1486 return TRUE;
1487 }
1488
1489 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1490
1491 void
1492 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1493 struct elf_link_hash_entry *dir,
1494 struct elf_link_hash_entry *ind)
1495 {
1496 struct tilegx_elf_link_hash_entry *edir, *eind;
1497
1498 edir = (struct tilegx_elf_link_hash_entry *) dir;
1499 eind = (struct tilegx_elf_link_hash_entry *) ind;
1500
1501 if (eind->dyn_relocs != NULL)
1502 {
1503 if (edir->dyn_relocs != NULL)
1504 {
1505 struct tilegx_elf_dyn_relocs **pp;
1506 struct tilegx_elf_dyn_relocs *p;
1507
1508 /* Add reloc counts against the indirect sym to the direct sym
1509 list. Merge any entries against the same section. */
1510 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1511 {
1512 struct tilegx_elf_dyn_relocs *q;
1513
1514 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1515 if (q->sec == p->sec)
1516 {
1517 q->pc_count += p->pc_count;
1518 q->count += p->count;
1519 *pp = p->next;
1520 break;
1521 }
1522 if (q == NULL)
1523 pp = &p->next;
1524 }
1525 *pp = edir->dyn_relocs;
1526 }
1527
1528 edir->dyn_relocs = eind->dyn_relocs;
1529 eind->dyn_relocs = NULL;
1530 }
1531
1532 if (ind->root.type == bfd_link_hash_indirect
1533 && dir->got.refcount <= 0)
1534 {
1535 edir->tls_type = eind->tls_type;
1536 eind->tls_type = GOT_UNKNOWN;
1537 }
1538 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1539 }
1540
1541 /* Look through the relocs for a section during the first phase, and
1542 allocate space in the global offset table or procedure linkage
1543 table. */
1544
1545 bfd_boolean
1546 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1547 asection *sec, const Elf_Internal_Rela *relocs)
1548 {
1549 struct tilegx_elf_link_hash_table *htab;
1550 Elf_Internal_Shdr *symtab_hdr;
1551 struct elf_link_hash_entry **sym_hashes;
1552 const Elf_Internal_Rela *rel;
1553 const Elf_Internal_Rela *rel_end;
1554 asection *sreloc;
1555 int num_relocs;
1556
1557 if (info->relocatable)
1558 return TRUE;
1559
1560 htab = tilegx_elf_hash_table (info);
1561 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1562 sym_hashes = elf_sym_hashes (abfd);
1563
1564 sreloc = NULL;
1565
1566 num_relocs = sec->reloc_count;
1567
1568 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1569
1570 if (htab->elf.dynobj == NULL)
1571 htab->elf.dynobj = abfd;
1572
1573 rel_end = relocs + num_relocs;
1574 for (rel = relocs; rel < rel_end; rel++)
1575 {
1576 unsigned int r_type;
1577 unsigned long r_symndx;
1578 struct elf_link_hash_entry *h;
1579 int tls_type;
1580
1581 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1582 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1583
1584 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1585 {
1586 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1587 abfd, r_symndx);
1588 return FALSE;
1589 }
1590
1591 if (r_symndx < symtab_hdr->sh_info)
1592 h = NULL;
1593 else
1594 {
1595 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1596 while (h->root.type == bfd_link_hash_indirect
1597 || h->root.type == bfd_link_hash_warning)
1598 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1599 }
1600
1601 switch (r_type)
1602 {
1603 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1604 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1605 case R_TILEGX_IMM16_X0_HW1_TLS_GD:
1606 case R_TILEGX_IMM16_X1_HW1_TLS_GD:
1607 case R_TILEGX_IMM16_X0_HW2_TLS_GD:
1608 case R_TILEGX_IMM16_X1_HW2_TLS_GD:
1609 case R_TILEGX_IMM16_X0_HW3_TLS_GD:
1610 case R_TILEGX_IMM16_X1_HW3_TLS_GD:
1611 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1612 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1613 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1614 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1615 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD:
1616 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD:
1617 tls_type = GOT_TLS_GD;
1618 goto have_got_reference;
1619
1620 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1621 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1622 case R_TILEGX_IMM16_X0_HW1_TLS_IE:
1623 case R_TILEGX_IMM16_X1_HW1_TLS_IE:
1624 case R_TILEGX_IMM16_X0_HW2_TLS_IE:
1625 case R_TILEGX_IMM16_X1_HW2_TLS_IE:
1626 case R_TILEGX_IMM16_X0_HW3_TLS_IE:
1627 case R_TILEGX_IMM16_X1_HW3_TLS_IE:
1628 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1629 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1630 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1631 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1632 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE:
1633 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE:
1634 tls_type = GOT_TLS_IE;
1635 if (info->shared)
1636 info->flags |= DF_STATIC_TLS;
1637 goto have_got_reference;
1638
1639 case R_TILEGX_IMM16_X0_HW0_GOT:
1640 case R_TILEGX_IMM16_X1_HW0_GOT:
1641 case R_TILEGX_IMM16_X0_HW1_GOT:
1642 case R_TILEGX_IMM16_X1_HW1_GOT:
1643 case R_TILEGX_IMM16_X0_HW2_GOT:
1644 case R_TILEGX_IMM16_X1_HW2_GOT:
1645 case R_TILEGX_IMM16_X0_HW3_GOT:
1646 case R_TILEGX_IMM16_X1_HW3_GOT:
1647 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1648 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1649 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1650 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1651 case R_TILEGX_IMM16_X0_HW2_LAST_GOT:
1652 case R_TILEGX_IMM16_X1_HW2_LAST_GOT:
1653 tls_type = GOT_NORMAL;
1654 /* Fall Through */
1655
1656 have_got_reference:
1657 /* This symbol requires a global offset table entry. */
1658 {
1659 int old_tls_type;
1660
1661 if (h != NULL)
1662 {
1663 h->got.refcount += 1;
1664 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1665 }
1666 else
1667 {
1668 bfd_signed_vma *local_got_refcounts;
1669
1670 /* This is a global offset table entry for a local symbol. */
1671 local_got_refcounts = elf_local_got_refcounts (abfd);
1672 if (local_got_refcounts == NULL)
1673 {
1674 bfd_size_type size;
1675
1676 size = symtab_hdr->sh_info;
1677 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1678 local_got_refcounts = ((bfd_signed_vma *)
1679 bfd_zalloc (abfd, size));
1680 if (local_got_refcounts == NULL)
1681 return FALSE;
1682 elf_local_got_refcounts (abfd) = local_got_refcounts;
1683 _bfd_tilegx_elf_local_got_tls_type (abfd)
1684 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1685 }
1686 local_got_refcounts[r_symndx] += 1;
1687 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1688 }
1689
1690 /* If a TLS symbol is accessed using IE at least once,
1691 there is no point to use dynamic model for it. */
1692 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1693 && (old_tls_type != GOT_TLS_GD
1694 || tls_type != GOT_TLS_IE))
1695 {
1696 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1697 tls_type = old_tls_type;
1698 else
1699 {
1700 (*_bfd_error_handler)
1701 (_("%B: `%s' accessed both as normal and thread local symbol"),
1702 abfd, h ? h->root.root.string : "<local>");
1703 return FALSE;
1704 }
1705 }
1706
1707 if (old_tls_type != tls_type)
1708 {
1709 if (h != NULL)
1710 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1711 else
1712 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1713 }
1714 }
1715
1716 if (htab->elf.sgot == NULL)
1717 {
1718 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1719 return FALSE;
1720 }
1721 break;
1722
1723 case R_TILEGX_JUMPOFF_X1_PLT:
1724 /* This symbol requires a procedure linkage table entry. We
1725 actually build the entry in adjust_dynamic_symbol,
1726 because this might be a case of linking PIC code without
1727 linking in any dynamic objects, in which case we don't
1728 need to generate a procedure linkage table after all. */
1729
1730 if (h != NULL)
1731 {
1732 h->needs_plt = 1;
1733 h->plt.refcount += 1;
1734 }
1735 break;
1736
1737 case R_TILEGX_64_PCREL:
1738 case R_TILEGX_32_PCREL:
1739 case R_TILEGX_16_PCREL:
1740 case R_TILEGX_8_PCREL:
1741 case R_TILEGX_IMM16_X0_HW0_PCREL:
1742 case R_TILEGX_IMM16_X1_HW0_PCREL:
1743 case R_TILEGX_IMM16_X0_HW1_PCREL:
1744 case R_TILEGX_IMM16_X1_HW1_PCREL:
1745 case R_TILEGX_IMM16_X0_HW2_PCREL:
1746 case R_TILEGX_IMM16_X1_HW2_PCREL:
1747 case R_TILEGX_IMM16_X0_HW3_PCREL:
1748 case R_TILEGX_IMM16_X1_HW3_PCREL:
1749 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1750 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1751 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1752 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1753 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1754 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1755 if (h != NULL)
1756 h->non_got_ref = 1;
1757
1758 if (h != NULL
1759 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1760 break;
1761 /* Fall through. */
1762
1763 case R_TILEGX_64:
1764 case R_TILEGX_32:
1765 case R_TILEGX_16:
1766 case R_TILEGX_8:
1767 case R_TILEGX_HW0:
1768 case R_TILEGX_HW1:
1769 case R_TILEGX_HW2:
1770 case R_TILEGX_HW3:
1771 case R_TILEGX_HW0_LAST:
1772 case R_TILEGX_HW1_LAST:
1773 case R_TILEGX_HW2_LAST:
1774 case R_TILEGX_COPY:
1775 case R_TILEGX_GLOB_DAT:
1776 case R_TILEGX_JMP_SLOT:
1777 case R_TILEGX_RELATIVE:
1778 case R_TILEGX_BROFF_X1:
1779 case R_TILEGX_JUMPOFF_X1:
1780 case R_TILEGX_IMM8_X0:
1781 case R_TILEGX_IMM8_Y0:
1782 case R_TILEGX_IMM8_X1:
1783 case R_TILEGX_IMM8_Y1:
1784 case R_TILEGX_DEST_IMM8_X1:
1785 case R_TILEGX_MT_IMM14_X1:
1786 case R_TILEGX_MF_IMM14_X1:
1787 case R_TILEGX_MMSTART_X0:
1788 case R_TILEGX_MMEND_X0:
1789 case R_TILEGX_SHAMT_X0:
1790 case R_TILEGX_SHAMT_X1:
1791 case R_TILEGX_SHAMT_Y0:
1792 case R_TILEGX_SHAMT_Y1:
1793 case R_TILEGX_IMM16_X0_HW0:
1794 case R_TILEGX_IMM16_X1_HW0:
1795 case R_TILEGX_IMM16_X0_HW1:
1796 case R_TILEGX_IMM16_X1_HW1:
1797 case R_TILEGX_IMM16_X0_HW2:
1798 case R_TILEGX_IMM16_X1_HW2:
1799 case R_TILEGX_IMM16_X0_HW3:
1800 case R_TILEGX_IMM16_X1_HW3:
1801 case R_TILEGX_IMM16_X0_HW0_LAST:
1802 case R_TILEGX_IMM16_X1_HW0_LAST:
1803 case R_TILEGX_IMM16_X0_HW1_LAST:
1804 case R_TILEGX_IMM16_X1_HW1_LAST:
1805 case R_TILEGX_IMM16_X0_HW2_LAST:
1806 case R_TILEGX_IMM16_X1_HW2_LAST:
1807 if (h != NULL)
1808 {
1809 h->non_got_ref = 1;
1810
1811 if (!info->shared)
1812 {
1813 /* We may need a .plt entry if the function this reloc
1814 refers to is in a shared lib. */
1815 h->plt.refcount += 1;
1816 }
1817 }
1818
1819 /* If we are creating a shared library, and this is a reloc
1820 against a global symbol, or a non PC relative reloc
1821 against a local symbol, then we need to copy the reloc
1822 into the shared library. However, if we are linking with
1823 -Bsymbolic, we do not need to copy a reloc against a
1824 global symbol which is defined in an object we are
1825 including in the link (i.e., DEF_REGULAR is set). At
1826 this point we have not seen all the input files, so it is
1827 possible that DEF_REGULAR is not set now but will be set
1828 later (it is never cleared). In case of a weak definition,
1829 DEF_REGULAR may be cleared later by a strong definition in
1830 a shared library. We account for that possibility below by
1831 storing information in the relocs_copied field of the hash
1832 table entry. A similar situation occurs when creating
1833 shared libraries and symbol visibility changes render the
1834 symbol local.
1835
1836 If on the other hand, we are creating an executable, we
1837 may need to keep relocations for symbols satisfied by a
1838 dynamic library if we manage to avoid copy relocs for the
1839 symbol. */
1840 if ((info->shared
1841 && (sec->flags & SEC_ALLOC) != 0
1842 && (! tilegx_elf_howto_table[r_type].pc_relative
1843 || (h != NULL
1844 && (! info->symbolic
1845 || h->root.type == bfd_link_hash_defweak
1846 || !h->def_regular))))
1847 || (!info->shared
1848 && (sec->flags & SEC_ALLOC) != 0
1849 && h != NULL
1850 && (h->root.type == bfd_link_hash_defweak
1851 || !h->def_regular)))
1852 {
1853 struct tilegx_elf_dyn_relocs *p;
1854 struct tilegx_elf_dyn_relocs **head;
1855
1856 /* When creating a shared object, we must copy these
1857 relocs into the output file. We create a reloc
1858 section in dynobj and make room for the reloc. */
1859 if (sreloc == NULL)
1860 {
1861 sreloc = _bfd_elf_make_dynamic_reloc_section
1862 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
1863 /*rela?*/ TRUE);
1864
1865 if (sreloc == NULL)
1866 return FALSE;
1867 }
1868
1869 /* If this is a global symbol, we count the number of
1870 relocations we need for this symbol. */
1871 if (h != NULL)
1872 head =
1873 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
1874 else
1875 {
1876 /* Track dynamic relocs needed for local syms too.
1877 We really need local syms available to do this
1878 easily. Oh well. */
1879
1880 asection *s;
1881 void *vpp;
1882 Elf_Internal_Sym *isym;
1883
1884 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1885 abfd, r_symndx);
1886 if (isym == NULL)
1887 return FALSE;
1888
1889 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1890 if (s == NULL)
1891 s = sec;
1892
1893 vpp = &elf_section_data (s)->local_dynrel;
1894 head = (struct tilegx_elf_dyn_relocs **) vpp;
1895 }
1896
1897 p = *head;
1898 if (p == NULL || p->sec != sec)
1899 {
1900 bfd_size_type amt = sizeof *p;
1901 p = ((struct tilegx_elf_dyn_relocs *)
1902 bfd_alloc (htab->elf.dynobj, amt));
1903 if (p == NULL)
1904 return FALSE;
1905 p->next = *head;
1906 *head = p;
1907 p->sec = sec;
1908 p->count = 0;
1909 p->pc_count = 0;
1910 }
1911
1912 p->count += 1;
1913 if (tilegx_elf_howto_table[r_type].pc_relative)
1914 p->pc_count += 1;
1915 }
1916
1917 break;
1918
1919 case R_TILEGX_GNU_VTINHERIT:
1920 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1921 return FALSE;
1922 break;
1923
1924 case R_TILEGX_GNU_VTENTRY:
1925 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1926 return FALSE;
1927 break;
1928
1929 default:
1930 break;
1931 }
1932 }
1933
1934 return TRUE;
1935 }
1936
1937 \f
1938 asection *
1939 tilegx_elf_gc_mark_hook (asection *sec,
1940 struct bfd_link_info *info,
1941 Elf_Internal_Rela *rel,
1942 struct elf_link_hash_entry *h,
1943 Elf_Internal_Sym *sym)
1944 {
1945 if (h != NULL)
1946 {
1947 switch (TILEGX_ELF_R_TYPE (rel->r_info))
1948 {
1949 case R_TILEGX_GNU_VTINHERIT:
1950 case R_TILEGX_GNU_VTENTRY:
1951 break;
1952 }
1953 }
1954
1955 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1956 }
1957
1958 /* Update the got entry reference counts for the section being removed. */
1959 bfd_boolean
1960 tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1961 asection *sec, const Elf_Internal_Rela *relocs)
1962 {
1963 struct tilegx_elf_link_hash_table *htab;
1964 Elf_Internal_Shdr *symtab_hdr;
1965 struct elf_link_hash_entry **sym_hashes;
1966 bfd_signed_vma *local_got_refcounts;
1967 const Elf_Internal_Rela *rel, *relend;
1968
1969 if (info->relocatable)
1970 return TRUE;
1971
1972 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
1973
1974 elf_section_data (sec)->local_dynrel = NULL;
1975
1976 htab = tilegx_elf_hash_table (info);
1977 BFD_ASSERT (htab != NULL);
1978 symtab_hdr = &elf_symtab_hdr (abfd);
1979 sym_hashes = elf_sym_hashes (abfd);
1980 local_got_refcounts = elf_local_got_refcounts (abfd);
1981
1982 relend = relocs + sec->reloc_count;
1983 for (rel = relocs; rel < relend; rel++)
1984 {
1985 unsigned long r_symndx;
1986 unsigned int r_type;
1987 struct elf_link_hash_entry *h = NULL;
1988
1989 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1990 if (r_symndx >= symtab_hdr->sh_info)
1991 {
1992 struct tilegx_elf_link_hash_entry *eh;
1993 struct tilegx_elf_dyn_relocs **pp;
1994 struct tilegx_elf_dyn_relocs *p;
1995
1996 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1997 while (h->root.type == bfd_link_hash_indirect
1998 || h->root.type == bfd_link_hash_warning)
1999 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2000 eh = (struct tilegx_elf_link_hash_entry *) h;
2001 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2002 if (p->sec == sec)
2003 {
2004 /* Everything must go for SEC. */
2005 *pp = p->next;
2006 break;
2007 }
2008 }
2009
2010 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2011
2012 switch (r_type)
2013 {
2014 case R_TILEGX_IMM16_X0_HW0_GOT:
2015 case R_TILEGX_IMM16_X1_HW0_GOT:
2016 case R_TILEGX_IMM16_X0_HW1_GOT:
2017 case R_TILEGX_IMM16_X1_HW1_GOT:
2018 case R_TILEGX_IMM16_X0_HW2_GOT:
2019 case R_TILEGX_IMM16_X1_HW2_GOT:
2020 case R_TILEGX_IMM16_X0_HW3_GOT:
2021 case R_TILEGX_IMM16_X1_HW3_GOT:
2022 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2023 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2024 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2025 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
2026 case R_TILEGX_IMM16_X0_HW2_LAST_GOT:
2027 case R_TILEGX_IMM16_X1_HW2_LAST_GOT:
2028 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2029 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
2030 case R_TILEGX_IMM16_X0_HW1_TLS_GD:
2031 case R_TILEGX_IMM16_X1_HW1_TLS_GD:
2032 case R_TILEGX_IMM16_X0_HW2_TLS_GD:
2033 case R_TILEGX_IMM16_X1_HW2_TLS_GD:
2034 case R_TILEGX_IMM16_X0_HW3_TLS_GD:
2035 case R_TILEGX_IMM16_X1_HW3_TLS_GD:
2036 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2037 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2038 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2039 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
2040 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD:
2041 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD:
2042 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2043 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
2044 case R_TILEGX_IMM16_X0_HW1_TLS_IE:
2045 case R_TILEGX_IMM16_X1_HW1_TLS_IE:
2046 case R_TILEGX_IMM16_X0_HW2_TLS_IE:
2047 case R_TILEGX_IMM16_X1_HW2_TLS_IE:
2048 case R_TILEGX_IMM16_X0_HW3_TLS_IE:
2049 case R_TILEGX_IMM16_X1_HW3_TLS_IE:
2050 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2051 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2052 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2053 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
2054 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE:
2055 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE:
2056 if (h != NULL)
2057 {
2058 if (h->got.refcount > 0)
2059 h->got.refcount--;
2060 }
2061 else
2062 {
2063 if (local_got_refcounts[r_symndx] > 0)
2064 local_got_refcounts[r_symndx]--;
2065 }
2066 break;
2067
2068 case R_TILEGX_64_PCREL:
2069 case R_TILEGX_32_PCREL:
2070 case R_TILEGX_16_PCREL:
2071 case R_TILEGX_8_PCREL:
2072 case R_TILEGX_IMM16_X0_HW0_PCREL:
2073 case R_TILEGX_IMM16_X1_HW0_PCREL:
2074 case R_TILEGX_IMM16_X0_HW1_PCREL:
2075 case R_TILEGX_IMM16_X1_HW1_PCREL:
2076 case R_TILEGX_IMM16_X0_HW2_PCREL:
2077 case R_TILEGX_IMM16_X1_HW2_PCREL:
2078 case R_TILEGX_IMM16_X0_HW3_PCREL:
2079 case R_TILEGX_IMM16_X1_HW3_PCREL:
2080 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2081 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2082 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2083 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2084 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2085 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2086 if (h != NULL
2087 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2088 break;
2089 /* Fall through. */
2090
2091 case R_TILEGX_64:
2092 case R_TILEGX_32:
2093 case R_TILEGX_16:
2094 case R_TILEGX_8:
2095 case R_TILEGX_HW0:
2096 case R_TILEGX_HW1:
2097 case R_TILEGX_HW2:
2098 case R_TILEGX_HW3:
2099 case R_TILEGX_HW0_LAST:
2100 case R_TILEGX_HW1_LAST:
2101 case R_TILEGX_HW2_LAST:
2102 case R_TILEGX_COPY:
2103 case R_TILEGX_GLOB_DAT:
2104 case R_TILEGX_JMP_SLOT:
2105 case R_TILEGX_RELATIVE:
2106 case R_TILEGX_BROFF_X1:
2107 case R_TILEGX_JUMPOFF_X1:
2108 case R_TILEGX_IMM8_X0:
2109 case R_TILEGX_IMM8_Y0:
2110 case R_TILEGX_IMM8_X1:
2111 case R_TILEGX_IMM8_Y1:
2112 case R_TILEGX_DEST_IMM8_X1:
2113 case R_TILEGX_MT_IMM14_X1:
2114 case R_TILEGX_MF_IMM14_X1:
2115 case R_TILEGX_MMSTART_X0:
2116 case R_TILEGX_MMEND_X0:
2117 case R_TILEGX_SHAMT_X0:
2118 case R_TILEGX_SHAMT_X1:
2119 case R_TILEGX_SHAMT_Y0:
2120 case R_TILEGX_SHAMT_Y1:
2121 case R_TILEGX_IMM16_X0_HW0:
2122 case R_TILEGX_IMM16_X1_HW0:
2123 case R_TILEGX_IMM16_X0_HW1:
2124 case R_TILEGX_IMM16_X1_HW1:
2125 case R_TILEGX_IMM16_X0_HW2:
2126 case R_TILEGX_IMM16_X1_HW2:
2127 case R_TILEGX_IMM16_X0_HW3:
2128 case R_TILEGX_IMM16_X1_HW3:
2129 case R_TILEGX_IMM16_X0_HW0_LAST:
2130 case R_TILEGX_IMM16_X1_HW0_LAST:
2131 case R_TILEGX_IMM16_X0_HW1_LAST:
2132 case R_TILEGX_IMM16_X1_HW1_LAST:
2133 case R_TILEGX_IMM16_X0_HW2_LAST:
2134 case R_TILEGX_IMM16_X1_HW2_LAST:
2135 if (info->shared)
2136 break;
2137 /* Fall through. */
2138
2139 case R_TILEGX_JUMPOFF_X1_PLT:
2140 if (h != NULL)
2141 {
2142 if (h->plt.refcount > 0)
2143 h->plt.refcount--;
2144 }
2145 break;
2146
2147 default:
2148 break;
2149 }
2150 }
2151
2152 return TRUE;
2153 }
2154
2155 /* Adjust a symbol defined by a dynamic object and referenced by a
2156 regular object. The current definition is in some section of the
2157 dynamic object, but we're not including those sections. We have to
2158 change the definition to something the rest of the link can
2159 understand. */
2160
2161 bfd_boolean
2162 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2163 struct elf_link_hash_entry *h)
2164 {
2165 struct tilegx_elf_link_hash_table *htab;
2166 struct tilegx_elf_link_hash_entry * eh;
2167 struct tilegx_elf_dyn_relocs *p;
2168 bfd *dynobj;
2169 asection *s;
2170
2171 htab = tilegx_elf_hash_table (info);
2172 BFD_ASSERT (htab != NULL);
2173
2174 dynobj = htab->elf.dynobj;
2175
2176 /* Make sure we know what is going on here. */
2177 BFD_ASSERT (dynobj != NULL
2178 && (h->needs_plt
2179 || h->u.weakdef != NULL
2180 || (h->def_dynamic
2181 && h->ref_regular
2182 && !h->def_regular)));
2183
2184 /* If this is a function, put it in the procedure linkage table. We
2185 will fill in the contents of the procedure linkage table later
2186 (although we could actually do it here). */
2187 if (h->type == STT_FUNC || h->needs_plt)
2188 {
2189 if (h->plt.refcount <= 0
2190 || SYMBOL_CALLS_LOCAL (info, h)
2191 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2192 && h->root.type == bfd_link_hash_undefweak))
2193 {
2194 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2195 reloc in an input file, but the symbol was never referred
2196 to by a dynamic object, or if all references were garbage
2197 collected. In such a case, we don't actually need to build
2198 a procedure linkage table, and we can just do a
2199 R_TILEGX_JUMPOFF_X1 relocation instead. */
2200 h->plt.offset = (bfd_vma) -1;
2201 h->needs_plt = 0;
2202 }
2203
2204 return TRUE;
2205 }
2206 else
2207 h->plt.offset = (bfd_vma) -1;
2208
2209 /* If this is a weak symbol, and there is a real definition, the
2210 processor independent code will have arranged for us to see the
2211 real definition first, and we can just use the same value. */
2212 if (h->u.weakdef != NULL)
2213 {
2214 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2215 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2216 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2217 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2218 return TRUE;
2219 }
2220
2221 /* This is a reference to a symbol defined by a dynamic object which
2222 is not a function. */
2223
2224 /* If we are creating a shared library, we must presume that the
2225 only references to the symbol are via the global offset table.
2226 For such cases we need not do anything here; the relocations will
2227 be handled correctly by relocate_section. */
2228 if (info->shared)
2229 return TRUE;
2230
2231 /* If there are no references to this symbol that do not use the
2232 GOT, we don't need to generate a copy reloc. */
2233 if (!h->non_got_ref)
2234 return TRUE;
2235
2236 /* If -z nocopyreloc was given, we won't generate them either. */
2237 if (info->nocopyreloc)
2238 {
2239 h->non_got_ref = 0;
2240 return TRUE;
2241 }
2242
2243 eh = (struct tilegx_elf_link_hash_entry *) h;
2244 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2245 {
2246 s = p->sec->output_section;
2247 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2248 break;
2249 }
2250
2251 /* If we didn't find any dynamic relocs in read-only sections, then
2252 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2253 if (p == NULL)
2254 {
2255 h->non_got_ref = 0;
2256 return TRUE;
2257 }
2258
2259 if (h->size == 0)
2260 {
2261 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2262 h->root.root.string);
2263 return TRUE;
2264 }
2265
2266 /* We must allocate the symbol in our .dynbss section, which will
2267 become part of the .bss section of the executable. There will be
2268 an entry for this symbol in the .dynsym section. The dynamic
2269 object will contain position independent code, so all references
2270 from the dynamic object to this symbol will go through the global
2271 offset table. The dynamic linker will use the .dynsym entry to
2272 determine the address it must put in the global offset table, so
2273 both the dynamic object and the regular object will refer to the
2274 same memory location for the variable. */
2275
2276 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2277 to copy the initial value out of the dynamic object and into the
2278 runtime process image. We need to remember the offset into the
2279 .rel.bss section we are going to use. */
2280 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2281 {
2282 htab->srelbss->size += TILEGX_ELF_RELA_BYTES (htab);
2283 h->needs_copy = 1;
2284 }
2285
2286 return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
2287 }
2288
2289 /* Allocate space in .plt, .got and associated reloc sections for
2290 dynamic relocs. */
2291
2292 static bfd_boolean
2293 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2294 {
2295 struct bfd_link_info *info;
2296 struct tilegx_elf_link_hash_table *htab;
2297 struct tilegx_elf_link_hash_entry *eh;
2298 struct tilegx_elf_dyn_relocs *p;
2299
2300 if (h->root.type == bfd_link_hash_indirect)
2301 return TRUE;
2302
2303 info = (struct bfd_link_info *) inf;
2304 htab = tilegx_elf_hash_table (info);
2305 BFD_ASSERT (htab != NULL);
2306
2307 if (htab->elf.dynamic_sections_created
2308 && h->plt.refcount > 0)
2309 {
2310 /* Make sure this symbol is output as a dynamic symbol.
2311 Undefined weak syms won't yet be marked as dynamic. */
2312 if (h->dynindx == -1
2313 && !h->forced_local)
2314 {
2315 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2316 return FALSE;
2317 }
2318
2319 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2320 {
2321 asection *s = htab->elf.splt;
2322
2323 /* Allocate room for the header and tail. */
2324 if (s->size == 0)
2325 {
2326 s->size = PLT_HEADER_SIZE + PLT_TAIL_SIZE;
2327 }
2328
2329 h->plt.offset = s->size - PLT_TAIL_SIZE;
2330
2331 /* If this symbol is not defined in a regular file, and we are
2332 not generating a shared library, then set the symbol to this
2333 location in the .plt. This is required to make function
2334 pointers compare as equal between the normal executable and
2335 the shared library. */
2336 if (! info->shared
2337 && !h->def_regular)
2338 {
2339 h->root.u.def.section = s;
2340 h->root.u.def.value = h->plt.offset;
2341 }
2342
2343 /* Make room for this entry. */
2344 s->size += PLT_ENTRY_SIZE;
2345
2346 /* We also need to make an entry in the .got.plt section. */
2347 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2348
2349 /* We also need to make an entry in the .rela.plt section. */
2350 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2351 }
2352 else
2353 {
2354 h->plt.offset = (bfd_vma) -1;
2355 h->needs_plt = 0;
2356 }
2357 }
2358 else
2359 {
2360 h->plt.offset = (bfd_vma) -1;
2361 h->needs_plt = 0;
2362 }
2363
2364 if (h->got.refcount > 0)
2365 {
2366 asection *s;
2367 bfd_boolean dyn;
2368 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2369
2370 /* Make sure this symbol is output as a dynamic symbol.
2371 Undefined weak syms won't yet be marked as dynamic. */
2372 if (h->dynindx == -1
2373 && !h->forced_local)
2374 {
2375 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2376 return FALSE;
2377 }
2378
2379 s = htab->elf.sgot;
2380 h->got.offset = s->size;
2381 s->size += TILEGX_ELF_WORD_BYTES (htab);
2382 /* TLS_GD entries need 2 consecutive GOT slots. */
2383 if (tls_type == GOT_TLS_GD)
2384 s->size += TILEGX_ELF_WORD_BYTES (htab);
2385 dyn = htab->elf.dynamic_sections_created;
2386 /* TLS_IE needs one dynamic relocation,
2387 TLS_GD needs two if local symbol and two if global. */
2388 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2389 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2390 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2391 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2392 }
2393 else
2394 h->got.offset = (bfd_vma) -1;
2395
2396 eh = (struct tilegx_elf_link_hash_entry *) h;
2397 if (eh->dyn_relocs == NULL)
2398 return TRUE;
2399
2400 /* In the shared -Bsymbolic case, discard space allocated for
2401 dynamic pc-relative relocs against symbols which turn out to be
2402 defined in regular objects. For the normal shared case, discard
2403 space for pc-relative relocs that have become local due to symbol
2404 visibility changes. */
2405
2406 if (info->shared)
2407 {
2408 if (SYMBOL_CALLS_LOCAL (info, h))
2409 {
2410 struct tilegx_elf_dyn_relocs **pp;
2411
2412 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2413 {
2414 p->count -= p->pc_count;
2415 p->pc_count = 0;
2416 if (p->count == 0)
2417 *pp = p->next;
2418 else
2419 pp = &p->next;
2420 }
2421 }
2422
2423 /* Also discard relocs on undefined weak syms with non-default
2424 visibility. */
2425 if (eh->dyn_relocs != NULL
2426 && h->root.type == bfd_link_hash_undefweak)
2427 {
2428 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2429 eh->dyn_relocs = NULL;
2430
2431 /* Make sure undefined weak symbols are output as a dynamic
2432 symbol in PIEs. */
2433 else if (h->dynindx == -1
2434 && !h->forced_local)
2435 {
2436 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2437 return FALSE;
2438 }
2439 }
2440 }
2441 else
2442 {
2443 /* For the non-shared case, discard space for relocs against
2444 symbols which turn out to need copy relocs or are not
2445 dynamic. */
2446
2447 if (!h->non_got_ref
2448 && ((h->def_dynamic
2449 && !h->def_regular)
2450 || (htab->elf.dynamic_sections_created
2451 && (h->root.type == bfd_link_hash_undefweak
2452 || h->root.type == bfd_link_hash_undefined))))
2453 {
2454 /* Make sure this symbol is output as a dynamic symbol.
2455 Undefined weak syms won't yet be marked as dynamic. */
2456 if (h->dynindx == -1
2457 && !h->forced_local)
2458 {
2459 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2460 return FALSE;
2461 }
2462
2463 /* If that succeeded, we know we'll be keeping all the
2464 relocs. */
2465 if (h->dynindx != -1)
2466 goto keep;
2467 }
2468
2469 eh->dyn_relocs = NULL;
2470
2471 keep: ;
2472 }
2473
2474 /* Finally, allocate space. */
2475 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2476 {
2477 asection *sreloc = elf_section_data (p->sec)->sreloc;
2478 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2479 }
2480
2481 return TRUE;
2482 }
2483
2484 /* Find any dynamic relocs that apply to read-only sections. */
2485
2486 static bfd_boolean
2487 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2488 {
2489 struct tilegx_elf_link_hash_entry *eh;
2490 struct tilegx_elf_dyn_relocs *p;
2491
2492 eh = (struct tilegx_elf_link_hash_entry *) h;
2493 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2494 {
2495 asection *s = p->sec->output_section;
2496
2497 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2498 {
2499 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2500
2501 info->flags |= DF_TEXTREL;
2502
2503 /* Not an error, just cut short the traversal. */
2504 return FALSE;
2505 }
2506 }
2507 return TRUE;
2508 }
2509
2510 /* Return true if the dynamic symbol for a given section should be
2511 omitted when creating a shared library. */
2512
2513 bfd_boolean
2514 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2515 struct bfd_link_info *info,
2516 asection *p)
2517 {
2518 /* We keep the .got section symbol so that explicit relocations
2519 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2520 can be turned into relocations against the .got symbol. */
2521 if (strcmp (p->name, ".got") == 0)
2522 return FALSE;
2523
2524 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2525 }
2526
2527 bfd_boolean
2528 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2529 struct bfd_link_info *info)
2530 {
2531 struct tilegx_elf_link_hash_table *htab;
2532 bfd *dynobj;
2533 asection *s;
2534 bfd *ibfd;
2535
2536 htab = tilegx_elf_hash_table (info);
2537 BFD_ASSERT (htab != NULL);
2538 dynobj = htab->elf.dynobj;
2539 BFD_ASSERT (dynobj != NULL);
2540
2541 if (elf_hash_table (info)->dynamic_sections_created)
2542 {
2543 /* Set the contents of the .interp section to the interpreter. */
2544 if (info->executable)
2545 {
2546 s = bfd_get_section_by_name (dynobj, ".interp");
2547 BFD_ASSERT (s != NULL);
2548 s->size = strlen (htab->dynamic_interpreter) + 1;
2549 s->contents = (unsigned char *) htab->dynamic_interpreter;
2550 }
2551 }
2552
2553 /* Set up .got offsets for local syms, and space for local dynamic
2554 relocs. */
2555 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2556 {
2557 bfd_signed_vma *local_got;
2558 bfd_signed_vma *end_local_got;
2559 char *local_tls_type;
2560 bfd_size_type locsymcount;
2561 Elf_Internal_Shdr *symtab_hdr;
2562 asection *srel;
2563
2564 if (! is_tilegx_elf (ibfd))
2565 continue;
2566
2567 for (s = ibfd->sections; s != NULL; s = s->next)
2568 {
2569 struct tilegx_elf_dyn_relocs *p;
2570
2571 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2572 {
2573 if (!bfd_is_abs_section (p->sec)
2574 && bfd_is_abs_section (p->sec->output_section))
2575 {
2576 /* Input section has been discarded, either because
2577 it is a copy of a linkonce section or due to
2578 linker script /DISCARD/, so we'll be discarding
2579 the relocs too. */
2580 }
2581 else if (p->count != 0)
2582 {
2583 srel = elf_section_data (p->sec)->sreloc;
2584 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2585 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2586 info->flags |= DF_TEXTREL;
2587 }
2588 }
2589 }
2590
2591 local_got = elf_local_got_refcounts (ibfd);
2592 if (!local_got)
2593 continue;
2594
2595 symtab_hdr = &elf_symtab_hdr (ibfd);
2596 locsymcount = symtab_hdr->sh_info;
2597 end_local_got = local_got + locsymcount;
2598 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2599 s = htab->elf.sgot;
2600 srel = htab->elf.srelgot;
2601 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2602 {
2603 if (*local_got > 0)
2604 {
2605 *local_got = s->size;
2606 s->size += TILEGX_ELF_WORD_BYTES (htab);
2607 if (*local_tls_type == GOT_TLS_GD)
2608 s->size += TILEGX_ELF_WORD_BYTES (htab);
2609 if (info->shared
2610 || *local_tls_type == GOT_TLS_GD
2611 || *local_tls_type == GOT_TLS_IE)
2612 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2613 }
2614 else
2615 *local_got = (bfd_vma) -1;
2616 }
2617 }
2618
2619 /* Allocate global sym .plt and .got entries, and space for global
2620 sym dynamic relocs. */
2621 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2622
2623 if (elf_hash_table (info)->dynamic_sections_created)
2624 {
2625 /* If the .got section is more than 0x8000 bytes, we add
2626 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2627 bit relocations have a greater chance of working. */
2628 if (htab->elf.sgot->size >= 0x8000
2629 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2630 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2631 }
2632
2633 if (htab->elf.sgotplt)
2634 {
2635 struct elf_link_hash_entry *got;
2636 got = elf_link_hash_lookup (elf_hash_table (info),
2637 "_GLOBAL_OFFSET_TABLE_",
2638 FALSE, FALSE, FALSE);
2639
2640 /* Don't allocate .got.plt section if there are no GOT nor PLT
2641 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2642 if ((got == NULL
2643 || !got->ref_regular_nonweak)
2644 && (htab->elf.sgotplt->size
2645 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2646 && (htab->elf.splt == NULL
2647 || htab->elf.splt->size == 0)
2648 && (htab->elf.sgot == NULL
2649 || (htab->elf.sgot->size
2650 == get_elf_backend_data (output_bfd)->got_header_size)))
2651 htab->elf.sgotplt->size = 0;
2652 }
2653
2654 /* The check_relocs and adjust_dynamic_symbol entry points have
2655 determined the sizes of the various dynamic sections. Allocate
2656 memory for them. */
2657 for (s = dynobj->sections; s != NULL; s = s->next)
2658 {
2659 if ((s->flags & SEC_LINKER_CREATED) == 0)
2660 continue;
2661
2662 if (s == htab->elf.splt
2663 || s == htab->elf.sgot
2664 || s == htab->elf.sgotplt
2665 || s == htab->sdynbss)
2666 {
2667 /* Strip this section if we don't need it; see the
2668 comment below. */
2669 }
2670 else if (strncmp (s->name, ".rela", 5) == 0)
2671 {
2672 if (s->size != 0)
2673 {
2674 /* We use the reloc_count field as a counter if we need
2675 to copy relocs into the output file. */
2676 s->reloc_count = 0;
2677 }
2678 }
2679 else
2680 {
2681 /* It's not one of our sections. */
2682 continue;
2683 }
2684
2685 if (s->size == 0)
2686 {
2687 /* If we don't need this section, strip it from the
2688 output file. This is mostly to handle .rela.bss and
2689 .rela.plt. We must create both sections in
2690 create_dynamic_sections, because they must be created
2691 before the linker maps input sections to output
2692 sections. The linker does that before
2693 adjust_dynamic_symbol is called, and it is that
2694 function which decides whether anything needs to go
2695 into these sections. */
2696 s->flags |= SEC_EXCLUDE;
2697 continue;
2698 }
2699
2700 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2701 continue;
2702
2703 /* Allocate memory for the section contents. Zero the memory
2704 for the benefit of .rela.plt, which has 4 unused entries
2705 at the beginning, and we don't want garbage. */
2706 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2707 if (s->contents == NULL)
2708 return FALSE;
2709 }
2710
2711 if (elf_hash_table (info)->dynamic_sections_created)
2712 {
2713 /* Add some entries to the .dynamic section. We fill in the
2714 values later, in tilegx_elf_finish_dynamic_sections, but we
2715 must add the entries now so that we get the correct size for
2716 the .dynamic section. The DT_DEBUG entry is filled in by the
2717 dynamic linker and used by the debugger. */
2718 #define add_dynamic_entry(TAG, VAL) \
2719 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2720
2721 if (info->executable)
2722 {
2723 if (!add_dynamic_entry (DT_DEBUG, 0))
2724 return FALSE;
2725 }
2726
2727 if (htab->elf.srelplt->size != 0)
2728 {
2729 if (!add_dynamic_entry (DT_PLTGOT, 0)
2730 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2731 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2732 || !add_dynamic_entry (DT_JMPREL, 0))
2733 return FALSE;
2734 }
2735
2736 if (!add_dynamic_entry (DT_RELA, 0)
2737 || !add_dynamic_entry (DT_RELASZ, 0)
2738 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2739 return FALSE;
2740
2741 /* If any dynamic relocs apply to a read-only section,
2742 then we need a DT_TEXTREL entry. */
2743 if ((info->flags & DF_TEXTREL) == 0)
2744 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2745
2746 if (info->flags & DF_TEXTREL)
2747 {
2748 if (!add_dynamic_entry (DT_TEXTREL, 0))
2749 return FALSE;
2750 }
2751 }
2752 #undef add_dynamic_entry
2753
2754 return TRUE;
2755 }
2756 \f
2757 /* Return the base VMA address which should be subtracted from real addresses
2758 when resolving @dtpoff relocation.
2759 This is PT_TLS segment p_vaddr. */
2760
2761 static bfd_vma
2762 dtpoff_base (struct bfd_link_info *info)
2763 {
2764 /* If tls_sec is NULL, we should have signalled an error already. */
2765 if (elf_hash_table (info)->tls_sec == NULL)
2766 return 0;
2767 return elf_hash_table (info)->tls_sec->vma;
2768 }
2769
2770 /* Return the relocation value for @tpoff relocation. */
2771
2772 static bfd_vma
2773 tpoff (struct bfd_link_info *info, bfd_vma address)
2774 {
2775 struct elf_link_hash_table *htab = elf_hash_table (info);
2776
2777 /* If tls_sec is NULL, we should have signalled an error already. */
2778 if (htab->tls_sec == NULL)
2779 return 0;
2780
2781 return (address - htab->tls_sec->vma);
2782 }
2783
2784 /* Relocate an TILEGX ELF section.
2785
2786 The RELOCATE_SECTION function is called by the new ELF backend linker
2787 to handle the relocations for a section.
2788
2789 The relocs are always passed as Rela structures.
2790
2791 This function is responsible for adjusting the section contents as
2792 necessary, and (if generating a relocatable output file) adjusting
2793 the reloc addend as necessary.
2794
2795 This function does not have to worry about setting the reloc
2796 address or the reloc symbol index.
2797
2798 LOCAL_SYMS is a pointer to the swapped in local symbols.
2799
2800 LOCAL_SECTIONS is an array giving the section in the input file
2801 corresponding to the st_shndx field of each local symbol.
2802
2803 The global hash table entry for the global symbols can be found
2804 via elf_sym_hashes (input_bfd).
2805
2806 When generating relocatable output, this function must handle
2807 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2808 going to be the section symbol corresponding to the output
2809 section, which means that the addend must be adjusted
2810 accordingly. */
2811
2812 bfd_boolean
2813 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2814 bfd *input_bfd, asection *input_section,
2815 bfd_byte *contents, Elf_Internal_Rela *relocs,
2816 Elf_Internal_Sym *local_syms,
2817 asection **local_sections)
2818 {
2819 struct tilegx_elf_link_hash_table *htab;
2820 Elf_Internal_Shdr *symtab_hdr;
2821 struct elf_link_hash_entry **sym_hashes;
2822 bfd_vma *local_got_offsets;
2823 bfd_vma got_base;
2824 asection *sreloc;
2825 Elf_Internal_Rela *rel;
2826 Elf_Internal_Rela *relend;
2827 int num_relocs;
2828
2829 htab = tilegx_elf_hash_table (info);
2830 BFD_ASSERT (htab != NULL);
2831 symtab_hdr = &elf_symtab_hdr (input_bfd);
2832 sym_hashes = elf_sym_hashes (input_bfd);
2833 local_got_offsets = elf_local_got_offsets (input_bfd);
2834
2835 if (elf_hash_table (info)->hgot == NULL)
2836 got_base = 0;
2837 else
2838 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2839
2840 sreloc = elf_section_data (input_section)->sreloc;
2841
2842 rel = relocs;
2843 num_relocs = input_section->reloc_count;
2844 relend = relocs + num_relocs;
2845 for (; rel < relend; rel++)
2846 {
2847 int r_type, tls_type;
2848 reloc_howto_type *howto;
2849 unsigned long r_symndx;
2850 struct elf_link_hash_entry *h;
2851 Elf_Internal_Sym *sym;
2852 tilegx_create_func create_func;
2853 asection *sec;
2854 bfd_vma relocation;
2855 bfd_reloc_status_type r;
2856 const char *name;
2857 bfd_vma off;
2858 bfd_boolean is_plt = FALSE;
2859
2860 bfd_boolean unresolved_reloc;
2861
2862 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2863 if (r_type == R_TILEGX_GNU_VTINHERIT
2864 || r_type == R_TILEGX_GNU_VTENTRY)
2865 continue;
2866
2867 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
2868 {
2869 /* Not clear if we need to check here, but just be paranoid. */
2870 (*_bfd_error_handler)
2871 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
2872 input_bfd, r_type, input_section);
2873 bfd_set_error (bfd_error_bad_value);
2874 return FALSE;
2875 }
2876
2877 howto = tilegx_elf_howto_table + r_type;
2878
2879 /* This is a final link. */
2880 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2881 h = NULL;
2882 sym = NULL;
2883 sec = NULL;
2884 unresolved_reloc = FALSE;
2885 if (r_symndx < symtab_hdr->sh_info)
2886 {
2887 sym = local_syms + r_symndx;
2888 sec = local_sections[r_symndx];
2889 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2890 }
2891 else
2892 {
2893 bfd_boolean warned;
2894
2895 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2896 r_symndx, symtab_hdr, sym_hashes,
2897 h, sec, relocation,
2898 unresolved_reloc, warned);
2899 if (warned)
2900 {
2901 /* To avoid generating warning messages about truncated
2902 relocations, set the relocation's address to be the same as
2903 the start of this section. */
2904 if (input_section->output_section != NULL)
2905 relocation = input_section->output_section->vma;
2906 else
2907 relocation = 0;
2908 }
2909 }
2910
2911 if (sec != NULL && elf_discarded_section (sec))
2912 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2913 rel, relend, howto, contents);
2914
2915 if (info->relocatable)
2916 continue;
2917
2918 if (h != NULL)
2919 name = h->root.root.string;
2920 else
2921 {
2922 name = (bfd_elf_string_from_elf_section
2923 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2924 if (name == NULL || *name == '\0')
2925 name = bfd_section_name (input_bfd, sec);
2926 }
2927
2928 switch (r_type)
2929 {
2930 case R_TILEGX_IMM16_X0_HW0_GOT:
2931 case R_TILEGX_IMM16_X1_HW0_GOT:
2932 case R_TILEGX_IMM16_X0_HW1_GOT:
2933 case R_TILEGX_IMM16_X1_HW1_GOT:
2934 case R_TILEGX_IMM16_X0_HW2_GOT:
2935 case R_TILEGX_IMM16_X1_HW2_GOT:
2936 case R_TILEGX_IMM16_X0_HW3_GOT:
2937 case R_TILEGX_IMM16_X1_HW3_GOT:
2938 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2939 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2940 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2941 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
2942 case R_TILEGX_IMM16_X0_HW2_LAST_GOT:
2943 case R_TILEGX_IMM16_X1_HW2_LAST_GOT:
2944 /* Relocation is to the entry for this symbol in the global
2945 offset table. */
2946 if (htab->elf.sgot == NULL)
2947 abort ();
2948
2949 if (h != NULL)
2950 {
2951 bfd_boolean dyn;
2952
2953 off = h->got.offset;
2954 BFD_ASSERT (off != (bfd_vma) -1);
2955 dyn = elf_hash_table (info)->dynamic_sections_created;
2956
2957 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2958 || (info->shared
2959 && SYMBOL_REFERENCES_LOCAL (info, h)))
2960 {
2961 /* This is actually a static link, or it is a
2962 -Bsymbolic link and the symbol is defined
2963 locally, or the symbol was forced to be local
2964 because of a version file. We must initialize
2965 this entry in the global offset table. Since the
2966 offset must always be a multiple
2967 of 8 for 64-bit, we use the least significant bit
2968 to record whether we have initialized it already.
2969
2970 When doing a dynamic link, we create a .rela.got
2971 relocation entry to initialize the value. This
2972 is done in the finish_dynamic_symbol routine. */
2973 if ((off & 1) != 0)
2974 off &= ~1;
2975 else
2976 {
2977 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
2978 htab->elf.sgot->contents + off);
2979 h->got.offset |= 1;
2980 }
2981 }
2982 else
2983 unresolved_reloc = FALSE;
2984 }
2985 else
2986 {
2987 BFD_ASSERT (local_got_offsets != NULL
2988 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2989
2990 off = local_got_offsets[r_symndx];
2991
2992 /* The offset must always be a multiple of 8 on 64-bit.
2993 We use the least significant bit to record
2994 whether we have already processed this entry. */
2995 if ((off & 1) != 0)
2996 off &= ~1;
2997 else
2998 {
2999 if (info->shared)
3000 {
3001 asection *s;
3002 Elf_Internal_Rela outrel;
3003
3004 /* We need to generate a R_TILEGX_RELATIVE reloc
3005 for the dynamic linker. */
3006 s = htab->elf.srelgot;
3007 BFD_ASSERT (s != NULL);
3008
3009 outrel.r_offset = (htab->elf.sgot->output_section->vma
3010 + htab->elf.sgot->output_offset
3011 + off);
3012 outrel.r_info =
3013 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3014 outrel.r_addend = relocation;
3015 relocation = 0;
3016 tilegx_elf_append_rela (output_bfd, s, &outrel);
3017 }
3018
3019 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3020 htab->elf.sgot->contents + off);
3021 local_got_offsets[r_symndx] |= 1;
3022 }
3023 }
3024 relocation = htab->elf.sgot->output_offset + off - got_base;
3025 break;
3026
3027 case R_TILEGX_JUMPOFF_X1_PLT:
3028 /* Relocation is to the entry for this symbol in the
3029 procedure linkage table. */
3030 BFD_ASSERT (h != NULL);
3031
3032 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3033 {
3034 /* We didn't make a PLT entry for this symbol. This
3035 happens when statically linking PIC code, or when
3036 using -Bsymbolic. */
3037 break;
3038 }
3039
3040 relocation = (htab->elf.splt->output_section->vma
3041 + htab->elf.splt->output_offset
3042 + h->plt.offset);
3043 unresolved_reloc = FALSE;
3044 break;
3045
3046 case R_TILEGX_64_PCREL:
3047 case R_TILEGX_32_PCREL:
3048 case R_TILEGX_16_PCREL:
3049 case R_TILEGX_8_PCREL:
3050 case R_TILEGX_IMM16_X0_HW0_PCREL:
3051 case R_TILEGX_IMM16_X1_HW0_PCREL:
3052 case R_TILEGX_IMM16_X0_HW1_PCREL:
3053 case R_TILEGX_IMM16_X1_HW1_PCREL:
3054 case R_TILEGX_IMM16_X0_HW2_PCREL:
3055 case R_TILEGX_IMM16_X1_HW2_PCREL:
3056 case R_TILEGX_IMM16_X0_HW3_PCREL:
3057 case R_TILEGX_IMM16_X1_HW3_PCREL:
3058 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3059 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3060 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3061 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3062 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3063 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3064 if (h != NULL
3065 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3066 break;
3067 /* Fall through. */
3068 case R_TILEGX_64:
3069 case R_TILEGX_32:
3070 case R_TILEGX_16:
3071 case R_TILEGX_8:
3072 case R_TILEGX_HW0:
3073 case R_TILEGX_HW1:
3074 case R_TILEGX_HW2:
3075 case R_TILEGX_HW3:
3076 case R_TILEGX_HW0_LAST:
3077 case R_TILEGX_HW1_LAST:
3078 case R_TILEGX_HW2_LAST:
3079 case R_TILEGX_COPY:
3080 case R_TILEGX_GLOB_DAT:
3081 case R_TILEGX_JMP_SLOT:
3082 case R_TILEGX_RELATIVE:
3083 case R_TILEGX_BROFF_X1:
3084 case R_TILEGX_JUMPOFF_X1:
3085 case R_TILEGX_IMM8_X0:
3086 case R_TILEGX_IMM8_Y0:
3087 case R_TILEGX_IMM8_X1:
3088 case R_TILEGX_IMM8_Y1:
3089 case R_TILEGX_DEST_IMM8_X1:
3090 case R_TILEGX_MT_IMM14_X1:
3091 case R_TILEGX_MF_IMM14_X1:
3092 case R_TILEGX_MMSTART_X0:
3093 case R_TILEGX_MMEND_X0:
3094 case R_TILEGX_SHAMT_X0:
3095 case R_TILEGX_SHAMT_X1:
3096 case R_TILEGX_SHAMT_Y0:
3097 case R_TILEGX_SHAMT_Y1:
3098 case R_TILEGX_IMM16_X0_HW0:
3099 case R_TILEGX_IMM16_X1_HW0:
3100 case R_TILEGX_IMM16_X0_HW1:
3101 case R_TILEGX_IMM16_X1_HW1:
3102 case R_TILEGX_IMM16_X0_HW2:
3103 case R_TILEGX_IMM16_X1_HW2:
3104 case R_TILEGX_IMM16_X0_HW3:
3105 case R_TILEGX_IMM16_X1_HW3:
3106 case R_TILEGX_IMM16_X0_HW0_LAST:
3107 case R_TILEGX_IMM16_X1_HW0_LAST:
3108 case R_TILEGX_IMM16_X0_HW1_LAST:
3109 case R_TILEGX_IMM16_X1_HW1_LAST:
3110 case R_TILEGX_IMM16_X0_HW2_LAST:
3111 case R_TILEGX_IMM16_X1_HW2_LAST:
3112 if ((input_section->flags & SEC_ALLOC) == 0)
3113 break;
3114
3115 if ((info->shared
3116 && (h == NULL
3117 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3118 || h->root.type != bfd_link_hash_undefweak)
3119 && (! howto->pc_relative
3120 || !SYMBOL_CALLS_LOCAL (info, h)))
3121 || (!info->shared
3122 && h != NULL
3123 && h->dynindx != -1
3124 && !h->non_got_ref
3125 && ((h->def_dynamic
3126 && !h->def_regular)
3127 || h->root.type == bfd_link_hash_undefweak
3128 || h->root.type == bfd_link_hash_undefined)))
3129 {
3130 Elf_Internal_Rela outrel;
3131 bfd_boolean skip, relocate = FALSE;
3132
3133 /* When generating a shared object, these relocations
3134 are copied into the output file to be resolved at run
3135 time. */
3136
3137 BFD_ASSERT (sreloc != NULL);
3138
3139 skip = FALSE;
3140
3141 outrel.r_offset =
3142 _bfd_elf_section_offset (output_bfd, info, input_section,
3143 rel->r_offset);
3144 if (outrel.r_offset == (bfd_vma) -1)
3145 skip = TRUE;
3146 else if (outrel.r_offset == (bfd_vma) -2)
3147 skip = TRUE, relocate = TRUE;
3148 outrel.r_offset += (input_section->output_section->vma
3149 + input_section->output_offset);
3150
3151 switch (r_type)
3152 {
3153 case R_TILEGX_64_PCREL:
3154 case R_TILEGX_32_PCREL:
3155 case R_TILEGX_16_PCREL:
3156 case R_TILEGX_8_PCREL:
3157 /* If the symbol is not dynamic, we should not keep
3158 a dynamic relocation. But an .rela.* slot has been
3159 allocated for it, output R_TILEGX_NONE.
3160 FIXME: Add code tracking needed dynamic relocs as
3161 e.g. i386 has. */
3162 if (h->dynindx == -1)
3163 skip = TRUE, relocate = TRUE;
3164 break;
3165 }
3166
3167 if (skip)
3168 memset (&outrel, 0, sizeof outrel);
3169 /* h->dynindx may be -1 if the symbol was marked to
3170 become local. */
3171 else if (h != NULL &&
3172 h->dynindx != -1
3173 && (! is_plt
3174 || !info->shared
3175 || !SYMBOLIC_BIND (info, h)
3176 || !h->def_regular))
3177 {
3178 BFD_ASSERT (h->dynindx != -1);
3179 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3180 outrel.r_addend = rel->r_addend;
3181 }
3182 else
3183 {
3184 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3185 {
3186 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3187 R_TILEGX_RELATIVE);
3188 outrel.r_addend = relocation + rel->r_addend;
3189 }
3190 else
3191 {
3192 long indx;
3193
3194 outrel.r_addend = relocation + rel->r_addend;
3195
3196 if (is_plt)
3197 sec = htab->elf.splt;
3198
3199 if (bfd_is_abs_section (sec))
3200 indx = 0;
3201 else if (sec == NULL || sec->owner == NULL)
3202 {
3203 bfd_set_error (bfd_error_bad_value);
3204 return FALSE;
3205 }
3206 else
3207 {
3208 asection *osec;
3209
3210 /* We are turning this relocation into one
3211 against a section symbol. It would be
3212 proper to subtract the symbol's value,
3213 osec->vma, from the emitted reloc addend,
3214 but ld.so expects buggy relocs. */
3215 osec = sec->output_section;
3216 indx = elf_section_data (osec)->dynindx;
3217
3218 if (indx == 0)
3219 {
3220 osec = htab->elf.text_index_section;
3221 indx = elf_section_data (osec)->dynindx;
3222 }
3223
3224 /* FIXME: we really should be able to link non-pic
3225 shared libraries. */
3226 if (indx == 0)
3227 {
3228 BFD_FAIL ();
3229 (*_bfd_error_handler)
3230 (_("%B: probably compiled without -fPIC?"),
3231 input_bfd);
3232 bfd_set_error (bfd_error_bad_value);
3233 return FALSE;
3234 }
3235 }
3236
3237 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3238 r_type);
3239 }
3240 }
3241
3242 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3243
3244 /* This reloc will be computed at runtime, so there's no
3245 need to do anything now. */
3246 if (! relocate)
3247 continue;
3248 }
3249 break;
3250
3251 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3252 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3253 case R_TILEGX_IMM16_X0_HW1_TLS_GD:
3254 case R_TILEGX_IMM16_X1_HW1_TLS_GD:
3255 case R_TILEGX_IMM16_X0_HW2_TLS_GD:
3256 case R_TILEGX_IMM16_X1_HW2_TLS_GD:
3257 case R_TILEGX_IMM16_X0_HW3_TLS_GD:
3258 case R_TILEGX_IMM16_X1_HW3_TLS_GD:
3259 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3260 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3261 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3262 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3263 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD:
3264 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD:
3265 tls_type = GOT_TLS_GD;
3266 goto have_tls_reference;
3267
3268 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3269 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3270 case R_TILEGX_IMM16_X0_HW1_TLS_IE:
3271 case R_TILEGX_IMM16_X1_HW1_TLS_IE:
3272 case R_TILEGX_IMM16_X0_HW2_TLS_IE:
3273 case R_TILEGX_IMM16_X1_HW2_TLS_IE:
3274 case R_TILEGX_IMM16_X0_HW3_TLS_IE:
3275 case R_TILEGX_IMM16_X1_HW3_TLS_IE:
3276 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3277 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3278 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3279 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3280 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE:
3281 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE:
3282 tls_type = GOT_TLS_IE;
3283 /* Fall through. */
3284
3285 have_tls_reference:
3286 if (h == NULL && local_got_offsets)
3287 tls_type = _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3288 else if (h != NULL)
3289 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3290
3291 if (tls_type == GOT_TLS_IE)
3292 switch (r_type)
3293 {
3294 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3295 r_type = R_TILEGX_IMM16_X0_HW0_TLS_IE;
3296 break;
3297 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3298 r_type = R_TILEGX_IMM16_X1_HW0_TLS_IE;
3299 break;
3300 case R_TILEGX_IMM16_X0_HW1_TLS_GD:
3301 r_type = R_TILEGX_IMM16_X0_HW1_TLS_IE;
3302 break;
3303 case R_TILEGX_IMM16_X1_HW1_TLS_GD:
3304 r_type = R_TILEGX_IMM16_X1_HW1_TLS_IE;
3305 break;
3306 case R_TILEGX_IMM16_X0_HW2_TLS_GD:
3307 r_type = R_TILEGX_IMM16_X0_HW2_TLS_IE;
3308 break;
3309 case R_TILEGX_IMM16_X1_HW2_TLS_GD:
3310 r_type = R_TILEGX_IMM16_X1_HW2_TLS_IE;
3311 break;
3312 case R_TILEGX_IMM16_X0_HW3_TLS_GD:
3313 r_type = R_TILEGX_IMM16_X0_HW3_TLS_IE;
3314 break;
3315 case R_TILEGX_IMM16_X1_HW3_TLS_GD:
3316 r_type = R_TILEGX_IMM16_X1_HW3_TLS_IE;
3317 break;
3318 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3319 r_type = R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
3320 break;
3321 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3322 r_type = R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
3323 break;
3324 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3325 r_type = R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
3326 break;
3327 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3328 r_type = R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
3329 break;
3330 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD:
3331 r_type = R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE;
3332 break;
3333 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD:
3334 r_type = R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE;
3335 break;
3336 }
3337
3338 if (h != NULL)
3339 {
3340 off = h->got.offset;
3341 h->got.offset |= 1;
3342 }
3343 else
3344 {
3345 BFD_ASSERT (local_got_offsets != NULL);
3346 off = local_got_offsets[r_symndx];
3347 local_got_offsets[r_symndx] |= 1;
3348 }
3349
3350 if (htab->elf.sgot == NULL)
3351 abort ();
3352
3353 if ((off & 1) != 0)
3354 off &= ~1;
3355 else
3356 {
3357 Elf_Internal_Rela outrel;
3358 int indx = 0;
3359 bfd_boolean need_relocs = FALSE;
3360
3361 if (htab->elf.srelgot == NULL)
3362 abort ();
3363
3364 if (h != NULL)
3365 {
3366 bfd_boolean dyn;
3367 dyn = htab->elf.dynamic_sections_created;
3368
3369 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3370 && (!info->shared
3371 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3372 {
3373 indx = h->dynindx;
3374 }
3375 }
3376
3377 /* The GOT entries have not been initialized yet. Do it
3378 now, and emit any relocations. */
3379 if ((info->shared || indx != 0)
3380 && (h == NULL
3381 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3382 || h->root.type != bfd_link_hash_undefweak))
3383 need_relocs = TRUE;
3384
3385 switch (r_type)
3386 {
3387 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3388 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3389 case R_TILEGX_IMM16_X0_HW1_TLS_IE:
3390 case R_TILEGX_IMM16_X1_HW1_TLS_IE:
3391 case R_TILEGX_IMM16_X0_HW2_TLS_IE:
3392 case R_TILEGX_IMM16_X1_HW2_TLS_IE:
3393 case R_TILEGX_IMM16_X0_HW3_TLS_IE:
3394 case R_TILEGX_IMM16_X1_HW3_TLS_IE:
3395 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3396 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3397 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3398 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3399 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_IE:
3400 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_IE:
3401 if (need_relocs) {
3402 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3403 htab->elf.sgot->contents + off);
3404 outrel.r_offset = (htab->elf.sgot->output_section->vma
3405 + htab->elf.sgot->output_offset + off);
3406 outrel.r_addend = 0;
3407 if (indx == 0)
3408 outrel.r_addend = relocation - dtpoff_base (info);
3409 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3410 TILEGX_ELF_TPOFF_RELOC (htab));
3411 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3412 } else {
3413 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3414 tpoff (info, relocation),
3415 htab->elf.sgot->contents + off);
3416 }
3417 break;
3418
3419 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3420 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3421 case R_TILEGX_IMM16_X0_HW1_TLS_GD:
3422 case R_TILEGX_IMM16_X1_HW1_TLS_GD:
3423 case R_TILEGX_IMM16_X0_HW2_TLS_GD:
3424 case R_TILEGX_IMM16_X1_HW2_TLS_GD:
3425 case R_TILEGX_IMM16_X0_HW3_TLS_GD:
3426 case R_TILEGX_IMM16_X1_HW3_TLS_GD:
3427 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3428 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3429 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3430 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3431 case R_TILEGX_IMM16_X0_HW2_LAST_TLS_GD:
3432 case R_TILEGX_IMM16_X1_HW2_LAST_TLS_GD:
3433 if (need_relocs) {
3434 outrel.r_offset = (htab->elf.sgot->output_section->vma
3435 + htab->elf.sgot->output_offset + off);
3436 outrel.r_addend = 0;
3437 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3438 TILEGX_ELF_DTPMOD_RELOC (htab));
3439 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3440 htab->elf.sgot->contents + off);
3441 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3442 if (indx == 0)
3443 {
3444 BFD_ASSERT (! unresolved_reloc);
3445 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3446 relocation - dtpoff_base (info),
3447 (htab->elf.sgot->contents + off +
3448 TILEGX_ELF_WORD_BYTES (htab)));
3449 }
3450 else
3451 {
3452 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3453 (htab->elf.sgot->contents + off +
3454 TILEGX_ELF_WORD_BYTES (htab)));
3455 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3456 TILEGX_ELF_DTPOFF_RELOC (htab));
3457 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3458 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3459 }
3460 }
3461
3462 else {
3463 /* If we are not emitting relocations for a
3464 general dynamic reference, then we must be in a
3465 static link or an executable link with the
3466 symbol binding locally. Mark it as belonging
3467 to module 1, the executable. */
3468 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3469 htab->elf.sgot->contents + off );
3470 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3471 relocation - dtpoff_base (info),
3472 htab->elf.sgot->contents + off +
3473 TILEGX_ELF_WORD_BYTES (htab));
3474 }
3475 break;
3476 }
3477 }
3478
3479 if (off >= (bfd_vma) -2)
3480 abort ();
3481
3482 relocation = htab->elf.sgot->output_offset + off - got_base;
3483 unresolved_reloc = FALSE;
3484 howto = tilegx_elf_howto_table + r_type;
3485 break;
3486
3487 default:
3488 break;
3489 }
3490
3491 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3492 because such sections are not SEC_ALLOC and thus ld.so will
3493 not process them. */
3494 if (unresolved_reloc
3495 && !((input_section->flags & SEC_DEBUGGING) != 0
3496 && h->def_dynamic)
3497 && _bfd_elf_section_offset (output_bfd, info, input_section,
3498 rel->r_offset) != (bfd_vma) -1)
3499 (*_bfd_error_handler)
3500 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3501 input_bfd,
3502 input_section,
3503 (long) rel->r_offset,
3504 howto->name,
3505 h->root.root.string);
3506
3507 r = bfd_reloc_continue;
3508
3509 /* Get the operand creation function, if any. */
3510 create_func = reloc_to_create_func[r_type];
3511 if (create_func == NULL)
3512 {
3513 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3514 contents, rel->r_offset,
3515 relocation, rel->r_addend);
3516 }
3517 else
3518 {
3519 if (howto->pc_relative)
3520 {
3521 relocation -=
3522 input_section->output_section->vma + input_section->output_offset;
3523 if (howto->pcrel_offset)
3524 relocation -= rel->r_offset;
3525 }
3526
3527 bfd_byte *data;
3528
3529 /* Add the relocation addend if any to the final target value */
3530 relocation += rel->r_addend;
3531
3532 /* Do basic range checking */
3533 r = bfd_check_overflow (howto->complain_on_overflow,
3534 howto->bitsize,
3535 howto->rightshift,
3536 TILEGX_ELF_WORD_BYTES (htab) * 8,
3537 relocation);
3538
3539 /*
3540 * Write the relocated value out into the raw section data.
3541 * Don't put a relocation out in the .rela section.
3542 */
3543 tilegx_bundle_bits mask = create_func(-1);
3544 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3545
3546 /* Only touch bytes while the mask is not 0, so we
3547 don't write to out of bounds memory if this is actually
3548 a 16-bit switch instruction. */
3549 for (data = contents + rel->r_offset; mask != 0; data++)
3550 {
3551 bfd_byte byte_mask = (bfd_byte)mask;
3552 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3553 mask >>= 8;
3554 value >>= 8;
3555 }
3556 }
3557
3558 if (r != bfd_reloc_ok)
3559 {
3560 const char *msg = NULL;
3561
3562 switch (r)
3563 {
3564 case bfd_reloc_overflow:
3565 r = info->callbacks->reloc_overflow
3566 (info, (h ? &h->root : NULL), name, howto->name,
3567 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3568 break;
3569
3570 case bfd_reloc_undefined:
3571 r = info->callbacks->undefined_symbol
3572 (info, name, input_bfd, input_section, rel->r_offset,
3573 TRUE);
3574 break;
3575
3576 case bfd_reloc_outofrange:
3577 msg = _("internal error: out of range error");
3578 break;
3579
3580 case bfd_reloc_notsupported:
3581 msg = _("internal error: unsupported relocation error");
3582 break;
3583
3584 case bfd_reloc_dangerous:
3585 msg = _("internal error: dangerous relocation");
3586 break;
3587
3588 default:
3589 msg = _("internal error: unknown error");
3590 break;
3591 }
3592
3593 if (msg)
3594 r = info->callbacks->warning
3595 (info, msg, name, input_bfd, input_section, rel->r_offset);
3596
3597 if (! r)
3598 return FALSE;
3599 }
3600 }
3601
3602 return TRUE;
3603 }
3604
3605 /* Finish up dynamic symbol handling. We set the contents of various
3606 dynamic sections here. */
3607
3608 bfd_boolean
3609 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
3610 struct bfd_link_info *info,
3611 struct elf_link_hash_entry *h,
3612 Elf_Internal_Sym *sym)
3613 {
3614 struct tilegx_elf_link_hash_table *htab;
3615
3616 htab = tilegx_elf_hash_table (info);
3617 BFD_ASSERT (htab != NULL);
3618
3619 if (h->plt.offset != (bfd_vma) -1)
3620 {
3621 asection *splt;
3622 asection *srela;
3623 asection *sgotplt;
3624 Elf_Internal_Rela rela;
3625 bfd_byte *loc;
3626 bfd_vma r_offset;
3627 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
3628
3629
3630 int rela_index;
3631
3632 /* This symbol has an entry in the PLT. Set it up. */
3633
3634 BFD_ASSERT (h->dynindx != -1);
3635
3636 splt = htab->elf.splt;
3637 srela = htab->elf.srelplt;
3638 sgotplt = htab->elf.sgotplt;
3639
3640 if (splt == NULL || srela == NULL)
3641 abort ();
3642
3643 /* Fill in the entry in the procedure linkage table. */
3644 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
3645 h->plt.offset, &r_offset);
3646
3647 /* Fill in the entry in the global offset table, which initially points
3648 to the beginning of the plt. */
3649 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3650 splt->output_section->vma + splt->output_offset,
3651 sgotplt->contents + r_offset);
3652
3653 /* Fill in the entry in the .rela.plt section. */
3654 rela.r_offset = (sgotplt->output_section->vma
3655 + sgotplt->output_offset
3656 + r_offset);
3657 rela.r_addend = 0;
3658 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
3659
3660 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
3661 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3662
3663 if (!h->def_regular)
3664 {
3665 /* Mark the symbol as undefined, rather than as defined in
3666 the .plt section. Leave the value alone. */
3667 sym->st_shndx = SHN_UNDEF;
3668 /* If the symbol is weak, we do need to clear the value.
3669 Otherwise, the PLT entry would provide a definition for
3670 the symbol even if the symbol wasn't defined anywhere,
3671 and so the symbol would never be NULL. */
3672 if (!h->ref_regular_nonweak)
3673 sym->st_value = 0;
3674 }
3675 }
3676
3677 if (h->got.offset != (bfd_vma) -1
3678 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3679 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3680 {
3681 asection *sgot;
3682 asection *srela;
3683 Elf_Internal_Rela rela;
3684
3685 /* This symbol has an entry in the GOT. Set it up. */
3686
3687 sgot = htab->elf.sgot;
3688 srela = htab->elf.srelgot;
3689 BFD_ASSERT (sgot != NULL && srela != NULL);
3690
3691 rela.r_offset = (sgot->output_section->vma
3692 + sgot->output_offset
3693 + (h->got.offset &~ (bfd_vma) 1));
3694
3695 /* If this is a -Bsymbolic link, and the symbol is defined
3696 locally, we just want to emit a RELATIVE reloc. Likewise if
3697 the symbol was forced to be local because of a version file.
3698 The entry in the global offset table will already have been
3699 initialized in the relocate_section function. */
3700 if (info->shared
3701 && (info->symbolic || h->dynindx == -1)
3702 && h->def_regular)
3703 {
3704 asection *sec = h->root.u.def.section;
3705 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3706 rela.r_addend = (h->root.u.def.value
3707 + sec->output_section->vma
3708 + sec->output_offset);
3709 }
3710 else
3711 {
3712 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
3713 rela.r_addend = 0;
3714 }
3715
3716 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3717 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3718 tilegx_elf_append_rela (output_bfd, srela, &rela);
3719 }
3720
3721 if (h->needs_copy)
3722 {
3723 asection *s;
3724 Elf_Internal_Rela rela;
3725
3726 /* This symbols needs a copy reloc. Set it up. */
3727 BFD_ASSERT (h->dynindx != -1);
3728
3729 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3730 ".rela.bss");
3731 BFD_ASSERT (s != NULL);
3732
3733 rela.r_offset = (h->root.u.def.value
3734 + h->root.u.def.section->output_section->vma
3735 + h->root.u.def.section->output_offset);
3736 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
3737 rela.r_addend = 0;
3738 tilegx_elf_append_rela (output_bfd, s, &rela);
3739 }
3740
3741 /* Mark some specially defined symbols as absolute. */
3742 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3743 || (h == htab->elf.hgot || h == htab->elf.hplt))
3744 sym->st_shndx = SHN_ABS;
3745
3746 return TRUE;
3747 }
3748
3749 /* Finish up the dynamic sections. */
3750
3751 static bfd_boolean
3752 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3753 bfd *dynobj, asection *sdyn,
3754 asection *splt ATTRIBUTE_UNUSED)
3755 {
3756 struct tilegx_elf_link_hash_table *htab;
3757 const struct elf_backend_data *bed;
3758 bfd_byte *dyncon, *dynconend;
3759 size_t dynsize;
3760
3761 htab = tilegx_elf_hash_table (info);
3762 BFD_ASSERT (htab != NULL);
3763 bed = get_elf_backend_data (output_bfd);
3764 dynsize = bed->s->sizeof_dyn;
3765 dynconend = sdyn->contents + sdyn->size;
3766
3767 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
3768 {
3769 Elf_Internal_Dyn dyn;
3770 asection *s;
3771
3772 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
3773
3774 switch (dyn.d_tag)
3775 {
3776 case DT_PLTGOT:
3777 s = htab->elf.sgotplt;
3778 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3779 break;
3780 case DT_JMPREL:
3781 s = htab->elf.srelplt;
3782 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3783 break;
3784 case DT_PLTRELSZ:
3785 s = htab->elf.srelplt;
3786 dyn.d_un.d_val = s->size;
3787 break;
3788 default:
3789 continue;
3790 }
3791
3792 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3793 }
3794 return TRUE;
3795 }
3796
3797 bfd_boolean
3798 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
3799 struct bfd_link_info *info)
3800 {
3801 bfd *dynobj;
3802 asection *sdyn;
3803 struct tilegx_elf_link_hash_table *htab;
3804
3805 htab = tilegx_elf_hash_table (info);
3806 BFD_ASSERT (htab != NULL);
3807 dynobj = htab->elf.dynobj;
3808
3809 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3810
3811 if (elf_hash_table (info)->dynamic_sections_created)
3812 {
3813 asection *splt;
3814 bfd_boolean ret;
3815
3816 splt = bfd_get_section_by_name (dynobj, ".plt");
3817 BFD_ASSERT (splt != NULL && sdyn != NULL);
3818
3819 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3820
3821 if (ret != TRUE)
3822 return ret;
3823
3824 /* Fill in the head and tail entries in the procedure linkage table. */
3825 if (splt->size > 0)
3826 {
3827 memcpy (splt->contents,
3828 ABI_64_P (output_bfd) ?
3829 tilegx64_plt0_entry : tilegx32_plt0_entry,
3830 PLT_HEADER_SIZE);
3831
3832 memcpy (splt->contents + splt->size - PLT_TAIL_SIZE,
3833 ABI_64_P (output_bfd) ?
3834 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
3835 PLT_TAIL_SIZE);
3836 }
3837
3838 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3839 = PLT_ENTRY_SIZE;
3840 }
3841
3842 if (htab->elf.sgotplt)
3843 {
3844 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3845 {
3846 (*_bfd_error_handler)
3847 (_("discarded output section: `%A'"), htab->elf.sgotplt);
3848 return FALSE;
3849 }
3850
3851 if (htab->elf.sgotplt->size > 0)
3852 {
3853 /* Write the first two entries in .got.plt, needed for the dynamic
3854 linker. */
3855 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
3856 htab->elf.sgotplt->contents);
3857 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
3858 htab->elf.sgotplt->contents
3859 + GOT_ENTRY_SIZE (htab));
3860 }
3861
3862 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
3863 GOT_ENTRY_SIZE (htab);
3864 }
3865
3866 if (htab->elf.sgot)
3867 {
3868 if (htab->elf.sgot->size > 0)
3869 {
3870 /* Set the first entry in the global offset table to the address of
3871 the dynamic section. */
3872 bfd_vma val = (sdyn ?
3873 sdyn->output_section->vma + sdyn->output_offset :
3874 0);
3875 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
3876 htab->elf.sgot->contents);
3877 }
3878
3879 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
3880 GOT_ENTRY_SIZE (htab);
3881 }
3882
3883 return TRUE;
3884 }
3885
3886 \f
3887
3888 /* Return address for Ith PLT stub in section PLT, for relocation REL
3889 or (bfd_vma) -1 if it should not be included. */
3890
3891 bfd_vma
3892 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
3893 const arelent *rel ATTRIBUTE_UNUSED)
3894 {
3895 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
3896 }
3897
3898 enum elf_reloc_type_class
3899 tilegx_reloc_type_class (const Elf_Internal_Rela *rela)
3900 {
3901 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
3902 {
3903 case R_TILEGX_RELATIVE:
3904 return reloc_class_relative;
3905 case R_TILEGX_JMP_SLOT:
3906 return reloc_class_plt;
3907 case R_TILEGX_COPY:
3908 return reloc_class_copy;
3909 default:
3910 return reloc_class_normal;
3911 }
3912 }
3913
3914 int
3915 tilegx_additional_program_headers (bfd *abfd,
3916 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3917 {
3918 /* Each .intrpt section specified by the user adds another PT_LOAD
3919 header since the sections are discontiguous. */
3920 static const char intrpt_sections[4][9] =
3921 {
3922 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3923 };
3924 int count = 0;
3925 int i;
3926
3927 for (i = 0; i < 4; i++)
3928 {
3929 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3930 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3931 ++count;
3932 }
3933
3934 /* Add four "padding" headers in to leave room in case a custom linker
3935 script does something fancy. Otherwise ld complains that it ran
3936 out of program headers and refuses to link. */
3937 count += 4;
3938
3939 return count;
3940 }
3941
3942
3943 bfd_boolean
3944 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3945 {
3946 const char *targ1 = bfd_get_target (ibfd);
3947 const char *targ2 = bfd_get_target (obfd);
3948
3949 if (strcmp (targ1, targ2) != 0)
3950 {
3951 (*_bfd_error_handler)
3952 (_("%B: Cannot link together %s and %s objects."),
3953 ibfd, targ1, targ2);
3954 bfd_set_error (bfd_error_bad_value);
3955 return FALSE;
3956 }
3957
3958 return TRUE;
3959 }
git-cvsimport of binutils cvsroot