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Fix computation of got relocations for .got sections greater than
[deliverable/binutils-gdb.git] / bfd / elfxx-tilegx.c
1 /* TILE-Gx-specific support for ELF.
2 Copyright 2011, 2012 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilegx.h"
26 #include "opcode/tilegx.h"
27 #include "libiberty.h"
28 #include "elfxx-tilegx.h"
29
30 #define ABI_64_P(abfd) \
31 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
32
33 #define TILEGX_ELF_WORD_BYTES(htab) \
34 ((htab)->bytes_per_word)
35
36 /* The size of an external RELA relocation. */
37 #define TILEGX_ELF_RELA_BYTES(htab) \
38 ((htab)->bytes_per_rela)
39
40 /* Both 32-bit and 64-bit tilegx encode this in an identical manner,
41 so just take advantage of that. */
42 #define TILEGX_ELF_R_TYPE(r_info) \
43 ((r_info) & 0xFF)
44
45 #define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \
46 ((htab)->r_info (in_rel, index, type))
47
48 #define TILEGX_ELF_R_SYMNDX(htab, r_info) \
49 ((htab)->r_symndx(r_info))
50
51 #define TILEGX_ELF_DTPOFF_RELOC(htab) \
52 ((htab)->dtpoff_reloc)
53
54 #define TILEGX_ELF_DTPMOD_RELOC(htab) \
55 ((htab)->dtpmod_reloc)
56
57 #define TILEGX_ELF_TPOFF_RELOC(htab) \
58 ((htab)->tpoff_reloc)
59
60 #define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \
61 ((htab)->put_word (bfd, val, ptr))
62
63 /* The name of the dynamic interpreter. This is put in the .interp
64 section. */
65
66 #define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1"
67 #define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1"
68
69
70 static reloc_howto_type tilegx_elf_howto_table [] =
71 {
72 /* This reloc does nothing. */
73 HOWTO (R_TILEGX_NONE, /* type */
74 0, /* rightshift */
75 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
494 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0),
495 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0),
496 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16),
497 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16),
498 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32),
499 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32),
500
501 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0),
502 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0),
503 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16),
504 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16),
505
506 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48),
507 TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48),
508
509 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0),
510 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0),
511
512 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_LE, 0),
513 TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_LE, 0),
514 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE, 0),
515 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE, 0),
516 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE, 16),
517 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE, 16),
518
519 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0),
520 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0),
521 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16),
522 TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16),
523 EMPTY_HOWTO (90),
524 EMPTY_HOWTO (91),
525
526 #define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \
527 HOWTO (name, rshift, 1, 16, FALSE, 0, \
528 complain_overflow_dont, bfd_elf_generic_reloc, \
529 #name, FALSE, 0, 0xffff, TRUE)
530
531 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0),
532 TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0),
533
534 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0),
535 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0),
536 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16),
537 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16),
538 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32),
539 TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32),
540
541 #define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \
542 HOWTO (name, rshift, 1, 16, FALSE, 0, \
543 complain_overflow_signed, bfd_elf_generic_reloc, \
544 #name, FALSE, 0, 0xffff, TRUE)
545
546 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0),
547 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0),
548 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16),
549 TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16),
550 EMPTY_HOWTO (104),
551 EMPTY_HOWTO (105),
552
553 HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
554 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64",
555 FALSE, 0, 0, TRUE),
556 HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,
557 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64",
558 FALSE, 0, -1, TRUE),
559 HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont,
560 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64",
561 FALSE, 0, 0, TRUE),
562
563 HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
564 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32",
565 FALSE, 0, 0, TRUE),
566 HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield,
567 bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32",
568 FALSE, 0, -1, TRUE),
569 HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
570 bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32",
571 FALSE, 0, 0, TRUE),
572
573 HOWTO (R_TILEGX_TLS_GD_CALL, /* type */
574 TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
575 2, /* size (0 = byte, 1 = short, 2 = long) */
576 27, /* bitsize */
577 TRUE, /* pc_relative */
578 0, /* bitpos */
579 complain_overflow_signed,/* complain_on_overflow */
580 bfd_elf_generic_reloc, /* special_function */
581 "R_TILEGX_TLS_GD_CALL", /* name */
582 FALSE, /* partial_inplace */
583 0, /* src_mask */
584 -1, /* dst_mask */
585 TRUE), /* pcrel_offset */
586
587 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8),
588 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8),
589 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8),
590 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8),
591 TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8),
592 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8),
593 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8),
594 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8),
595 TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8),
596 };
597
598 static reloc_howto_type tilegx_elf_howto_table2 [] =
599 {
600 /* GNU extension to record C++ vtable hierarchy */
601 HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */
602 0, /* rightshift */
603 4, /* size (0 = byte, 1 = short, 2 = long) */
604 0, /* bitsize */
605 FALSE, /* pc_relative */
606 0, /* bitpos */
607 complain_overflow_dont, /* complain_on_overflow */
608 NULL, /* special_function */
609 "R_TILEGX_GNU_VTINHERIT", /* name */
610 FALSE, /* partial_inplace */
611 0, /* src_mask */
612 0, /* dst_mask */
613 FALSE), /* pcrel_offset */
614
615 /* GNU extension to record C++ vtable member usage */
616 HOWTO (R_TILEGX_GNU_VTENTRY, /* type */
617 0, /* rightshift */
618 4, /* size (0 = byte, 1 = short, 2 = long) */
619 0, /* bitsize */
620 FALSE, /* pc_relative */
621 0, /* bitpos */
622 complain_overflow_dont, /* complain_on_overflow */
623 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
624 "R_TILEGX_GNU_VTENTRY", /* name */
625 FALSE, /* partial_inplace */
626 0, /* src_mask */
627 0, /* dst_mask */
628 FALSE), /* pcrel_offset */
629
630 };
631 \f
632 /* Map BFD reloc types to TILEGX ELF reloc types. */
633
634 typedef struct tilegx_reloc_map
635 {
636 bfd_reloc_code_real_type bfd_reloc_val;
637 unsigned int tilegx_reloc_val;
638 reloc_howto_type * table;
639 } reloc_map;
640
641 static const reloc_map tilegx_reloc_map [] =
642 {
643 #define TH_REMAP(bfd, tilegx) \
644 { bfd, tilegx, tilegx_elf_howto_table },
645
646 /* Standard relocations. */
647 TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE)
648 TH_REMAP (BFD_RELOC_64, R_TILEGX_64)
649 TH_REMAP (BFD_RELOC_32, R_TILEGX_32)
650 TH_REMAP (BFD_RELOC_16, R_TILEGX_16)
651 TH_REMAP (BFD_RELOC_8, R_TILEGX_8)
652 TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL)
653 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL)
654 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL)
655 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL)
656
657 #define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t)
658
659 /* Custom relocations. */
660 SIMPLE_REMAP (TILEGX_HW0)
661 SIMPLE_REMAP (TILEGX_HW1)
662 SIMPLE_REMAP (TILEGX_HW2)
663 SIMPLE_REMAP (TILEGX_HW3)
664 SIMPLE_REMAP (TILEGX_HW0_LAST)
665 SIMPLE_REMAP (TILEGX_HW1_LAST)
666 SIMPLE_REMAP (TILEGX_HW2_LAST)
667 SIMPLE_REMAP (TILEGX_COPY)
668 SIMPLE_REMAP (TILEGX_GLOB_DAT)
669 SIMPLE_REMAP (TILEGX_JMP_SLOT)
670 SIMPLE_REMAP (TILEGX_RELATIVE)
671 SIMPLE_REMAP (TILEGX_BROFF_X1)
672 SIMPLE_REMAP (TILEGX_JUMPOFF_X1)
673 SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT)
674 SIMPLE_REMAP (TILEGX_IMM8_X0)
675 SIMPLE_REMAP (TILEGX_IMM8_Y0)
676 SIMPLE_REMAP (TILEGX_IMM8_X1)
677 SIMPLE_REMAP (TILEGX_IMM8_Y1)
678 SIMPLE_REMAP (TILEGX_DEST_IMM8_X1)
679 SIMPLE_REMAP (TILEGX_MT_IMM14_X1)
680 SIMPLE_REMAP (TILEGX_MF_IMM14_X1)
681 SIMPLE_REMAP (TILEGX_MMSTART_X0)
682 SIMPLE_REMAP (TILEGX_MMEND_X0)
683 SIMPLE_REMAP (TILEGX_SHAMT_X0)
684 SIMPLE_REMAP (TILEGX_SHAMT_X1)
685 SIMPLE_REMAP (TILEGX_SHAMT_Y0)
686 SIMPLE_REMAP (TILEGX_SHAMT_Y1)
687 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0)
688 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0)
689 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1)
690 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1)
691 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2)
692 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2)
693 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3)
694 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3)
695 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST)
696 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST)
697 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST)
698 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST)
699 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST)
700 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST)
701 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL)
702 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL)
703 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL)
704 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL)
705 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL)
706 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL)
707 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL)
708 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL)
709 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL)
710 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL)
711 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL)
712 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL)
713 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL)
714 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL)
715 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT)
716 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT)
717 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL)
718 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL)
719 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL)
720 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL)
721 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL)
722 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL)
723 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT)
724 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT)
725 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT)
726 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT)
727 SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL)
728 SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL)
729 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD)
730 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD)
731 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE)
732 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE)
733 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE)
734 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE)
735 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE)
736 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
737 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD)
738 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD)
739 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD)
740 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD)
741 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE)
742 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE)
743 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL)
744 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL)
745 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL)
746 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL)
747 SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL)
748 SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL)
749 SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE)
750 SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE)
751 SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE)
752 SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE)
753
754 SIMPLE_REMAP (TILEGX_TLS_DTPMOD64)
755 SIMPLE_REMAP (TILEGX_TLS_DTPOFF64)
756 SIMPLE_REMAP (TILEGX_TLS_TPOFF64)
757
758 SIMPLE_REMAP (TILEGX_TLS_DTPMOD32)
759 SIMPLE_REMAP (TILEGX_TLS_DTPOFF32)
760 SIMPLE_REMAP (TILEGX_TLS_TPOFF32)
761
762 SIMPLE_REMAP (TILEGX_TLS_GD_CALL)
763 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD)
764 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD)
765 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD)
766 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD)
767 SIMPLE_REMAP (TILEGX_TLS_IE_LOAD)
768 SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD)
769 SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD)
770 SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD)
771 SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD)
772
773 #undef SIMPLE_REMAP
774 #undef TH_REMAP
775
776 { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 },
777 { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 },
778 };
779
780
781
782 /* The TILE-Gx linker needs to keep track of the number of relocs that it
783 decides to copy as dynamic relocs in check_relocs for each symbol.
784 This is so that it can later discard them if they are found to be
785 unnecessary. We store the information in a field extending the
786 regular ELF linker hash table. */
787
788 struct tilegx_elf_dyn_relocs
789 {
790 struct tilegx_elf_dyn_relocs *next;
791
792 /* The input section of the reloc. */
793 asection *sec;
794
795 /* Total number of relocs copied for the input section. */
796 bfd_size_type count;
797
798 /* Number of pc-relative relocs copied for the input section. */
799 bfd_size_type pc_count;
800 };
801
802 /* TILEGX ELF linker hash entry. */
803
804 struct tilegx_elf_link_hash_entry
805 {
806 struct elf_link_hash_entry elf;
807
808 /* Track dynamic relocs copied for this symbol. */
809 struct tilegx_elf_dyn_relocs *dyn_relocs;
810
811 #define GOT_UNKNOWN 0
812 #define GOT_NORMAL 1
813 #define GOT_TLS_GD 2
814 #define GOT_TLS_IE 4
815 unsigned char tls_type;
816 };
817
818 #define tilegx_elf_hash_entry(ent) \
819 ((struct tilegx_elf_link_hash_entry *)(ent))
820
821 struct _bfd_tilegx_elf_obj_tdata
822 {
823 struct elf_obj_tdata root;
824
825 /* tls_type for each local got entry. */
826 char *local_got_tls_type;
827 };
828
829 #define _bfd_tilegx_elf_tdata(abfd) \
830 ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any)
831
832 #define _bfd_tilegx_elf_local_got_tls_type(abfd) \
833 (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type)
834
835 #define is_tilegx_elf(bfd) \
836 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
837 && elf_tdata (bfd) != NULL \
838 && elf_object_id (bfd) == TILEGX_ELF_DATA)
839
840 #include "elf/common.h"
841 #include "elf/internal.h"
842
843 struct tilegx_elf_link_hash_table
844 {
845 struct elf_link_hash_table elf;
846
847 int bytes_per_word;
848 int word_align_power;
849 int bytes_per_rela;
850 int dtpmod_reloc;
851 int dtpoff_reloc;
852 int tpoff_reloc;
853 bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma);
854 bfd_vma (*r_symndx) (bfd_vma);
855 void (*put_word) (bfd *, bfd_vma, void *);
856 const char *dynamic_interpreter;
857
858 /* Short-cuts to get to dynamic linker sections. */
859 asection *sdynbss;
860 asection *srelbss;
861
862 /* Whether LE transition has been disabled for some of the
863 sections. */
864 bfd_boolean disable_le_transition;
865
866 /* Small local sym to section mapping cache. */
867 struct sym_cache sym_cache;
868 };
869
870
871 /* Get the Tile ELF linker hash table from a link_info structure. */
872 #define tilegx_elf_hash_table(p) \
873 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
874 == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL)
875
876 #ifdef BFD64
877 static bfd_vma
878 tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
879 bfd_vma rel_index,
880 bfd_vma type)
881 {
882 return ELF64_R_INFO (rel_index, type);
883 }
884
885 static bfd_vma
886 tilegx_elf_r_symndx_64 (bfd_vma r_info)
887 {
888 return ELF64_R_SYM (r_info);
889 }
890
891 static void
892 tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
893 {
894 bfd_put_64 (abfd, val, ptr);
895 }
896 #endif /* BFD64 */
897
898 static bfd_vma
899 tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
900 bfd_vma rel_index,
901 bfd_vma type)
902 {
903 return ELF32_R_INFO (rel_index, type);
904 }
905
906 static bfd_vma
907 tilegx_elf_r_symndx_32 (bfd_vma r_info)
908 {
909 return ELF32_R_SYM (r_info);
910 }
911
912 static void
913 tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
914 {
915 bfd_put_32 (abfd, val, ptr);
916 }
917
918 reloc_howto_type *
919 tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
920 bfd_reloc_code_real_type code)
921 {
922 unsigned int i;
923
924 for (i = ARRAY_SIZE (tilegx_reloc_map); --i;)
925 {
926 const reloc_map * entry;
927
928 entry = tilegx_reloc_map + i;
929
930 if (entry->bfd_reloc_val == code)
931 return entry->table + (entry->tilegx_reloc_val
932 - entry->table[0].type);
933 }
934
935 return NULL;
936 }
937
938 reloc_howto_type *
939 tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
940 const char *r_name)
941 {
942 unsigned int i;
943
944 for (i = 0;
945 i < (sizeof (tilegx_elf_howto_table)
946 / sizeof (tilegx_elf_howto_table[0]));
947 i++)
948 if (tilegx_elf_howto_table[i].name != NULL
949 && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0)
950 return &tilegx_elf_howto_table[i];
951
952 return NULL;
953 }
954
955 void
956 tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
957 arelent *cache_ptr,
958 Elf_Internal_Rela *dst)
959 {
960 unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info);
961
962 if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD)
963 cache_ptr->howto = &tilegx_elf_howto_table [r_type];
964 else if (r_type - R_TILEGX_GNU_VTINHERIT
965 <= (unsigned int) R_TILEGX_GNU_VTENTRY)
966 cache_ptr->howto
967 = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT];
968 else
969 abort ();
970 }
971
972 typedef tilegx_bundle_bits (*tilegx_create_func)(int);
973
974 static const tilegx_create_func reloc_to_create_func[] =
975 {
976 /* The first twenty relocation types don't correspond to operands */
977 NULL,
978 NULL,
979 NULL,
980 NULL,
981 NULL,
982 NULL,
983 NULL,
984 NULL,
985 NULL,
986 NULL,
987 NULL,
988 NULL,
989 NULL,
990 NULL,
991 NULL,
992 NULL,
993 NULL,
994 NULL,
995 NULL,
996 NULL,
997
998 /* The remaining relocations are used for immediate operands */
999 create_BrOff_X1,
1000 create_JumpOff_X1,
1001 create_JumpOff_X1,
1002 create_Imm8_X0,
1003 create_Imm8_Y0,
1004 create_Imm8_X1,
1005 create_Imm8_Y1,
1006 create_Dest_Imm8_X1,
1007 create_MT_Imm14_X1,
1008 create_MF_Imm14_X1,
1009 create_BFStart_X0,
1010 create_BFEnd_X0,
1011 create_ShAmt_X0,
1012 create_ShAmt_X1,
1013 create_ShAmt_Y0,
1014 create_ShAmt_Y1,
1015 create_Imm16_X0,
1016 create_Imm16_X1,
1017 create_Imm16_X0,
1018 create_Imm16_X1,
1019 create_Imm16_X0,
1020 create_Imm16_X1,
1021 create_Imm16_X0,
1022 create_Imm16_X1,
1023 create_Imm16_X0,
1024 create_Imm16_X1,
1025 create_Imm16_X0,
1026 create_Imm16_X1,
1027 create_Imm16_X0,
1028 create_Imm16_X1,
1029 create_Imm16_X0,
1030 create_Imm16_X1,
1031 create_Imm16_X0,
1032 create_Imm16_X1,
1033 create_Imm16_X0,
1034 create_Imm16_X1,
1035 create_Imm16_X0,
1036 create_Imm16_X1,
1037 create_Imm16_X0,
1038 create_Imm16_X1,
1039 create_Imm16_X0,
1040 create_Imm16_X1,
1041 create_Imm16_X0,
1042 create_Imm16_X1,
1043 create_Imm16_X0,
1044 create_Imm16_X1,
1045 create_Imm16_X0,
1046 create_Imm16_X1,
1047 create_Imm16_X0,
1048 create_Imm16_X1,
1049 create_Imm16_X0,
1050 create_Imm16_X1,
1051 create_Imm16_X0,
1052 create_Imm16_X1,
1053 create_Imm16_X0,
1054 create_Imm16_X1,
1055 create_Imm16_X0,
1056 create_Imm16_X1,
1057 create_Imm16_X0,
1058 create_Imm16_X1,
1059 create_Imm16_X0,
1060 create_Imm16_X1,
1061 create_Imm16_X0,
1062 create_Imm16_X1,
1063 create_Imm16_X0,
1064 create_Imm16_X1,
1065 create_Imm16_X0,
1066 create_Imm16_X1,
1067 create_Imm16_X0,
1068 create_Imm16_X1,
1069 NULL,
1070 NULL,
1071 create_Imm16_X0,
1072 create_Imm16_X1,
1073 create_Imm16_X0,
1074 create_Imm16_X1,
1075 create_Imm16_X0,
1076 create_Imm16_X1,
1077 create_Imm16_X0,
1078 create_Imm16_X1,
1079 create_Imm16_X0,
1080 create_Imm16_X1,
1081 create_Imm16_X0,
1082 create_Imm16_X1,
1083 };
1084
1085 static void
1086 tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
1087 {
1088 const struct elf_backend_data *bed;
1089 bfd_byte *loc;
1090
1091 bed = get_elf_backend_data (abfd);
1092 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
1093 bed->s->swap_reloca_out (abfd, rel, loc);
1094 }
1095
1096 /* PLT/GOT stuff */
1097
1098 /* The procedure linkage table starts with the following header:
1099
1100 ld_add r28, r27, 8
1101 ld r27, r27
1102 {
1103 jr r27
1104 info 10 ## SP not offset, return PC in LR
1105 }
1106
1107 Subsequent entries are the following, jumping to the header at the end:
1108
1109 {
1110 moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET>
1111 lnk r26
1112 }
1113 1:
1114 {
1115 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1116 shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1117 }
1118 {
1119 add r28, r26, r28
1120 shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1121 }
1122 {
1123 add r27, r26, r27
1124 ld r28, r28
1125 info 10 ## SP not offset, return PC in LR
1126 }
1127 {
1128 shl16insli r29, zero, MY_PLT_INDEX
1129 jr r28
1130 }
1131
1132 This code sequence lets the code at at the start of the PLT determine
1133 which PLT entry was executed by examining 'r29'.
1134
1135 Note that MY_PLT_INDEX skips over the header entries, so the first
1136 actual jump table entry has index zero.
1137
1138 If the offset fits in 16 bits,
1139
1140 lnk r26
1141 1:
1142 {
1143 addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1144 moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1145 }
1146 {
1147 shl16insli r29, zero, MY_PLT_INDEX
1148 ld r28, r28
1149 }
1150 {
1151 add r27, r26, r27
1152 jr r28
1153 }
1154 info 10 ## SP not offset, return PC in LR
1155
1156 For the purpose of backtracing, the procedure linkage table ends with the
1157 following tail entry:
1158
1159 info 10 ## SP not offset, return PC in LR
1160
1161 The 32-bit versions are similar, with ld4s replacing ld, and offsets into
1162 the GOT being multiples of 4 instead of 8.
1163
1164 */
1165
1166 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1167 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1168 #define PLT_TAIL_SIZE_IN_BUNDLES 1
1169
1170 #define PLT_HEADER_SIZE \
1171 (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1172 #define PLT_ENTRY_SIZE \
1173 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1174 #define PLT_TAIL_SIZE \
1175 (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES)
1176
1177 #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab)
1178
1179 #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab))
1180
1181 static const bfd_byte
1182 tilegx64_plt0_entry[PLT_HEADER_SIZE] =
1183 {
1184 0x00, 0x30, 0x48, 0x51,
1185 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */
1186 0x00, 0x30, 0xbc, 0x35,
1187 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */
1188 0xff, 0xaf, 0x30, 0x40,
1189 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1190 };
1191
1192 static const bfd_byte
1193 tilegx64_long_plt_entry[PLT_ENTRY_SIZE] =
1194 {
1195 0xdc, 0x0f, 0x00, 0x10,
1196 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1197 0xdb, 0x0f, 0x00, 0x10,
1198 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1199 0x9c, 0xc6, 0x0d, 0xd0,
1200 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1201 0x9b, 0xb6, 0xc5, 0xad,
1202 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1203 0xdd, 0x0f, 0x00, 0x70,
1204 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1205 };
1206
1207 static const bfd_byte
1208 tilegx64_short_plt_entry[PLT_ENTRY_SIZE] =
1209 {
1210 0x00, 0x30, 0x48, 0x51,
1211 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1212 0x9c, 0x06, 0x00, 0x90,
1213 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1214 0xdd, 0x0f, 0x00, 0x70,
1215 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */
1216 0x9b, 0xb6, 0x0d, 0x50,
1217 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1218 0x00, 0x30, 0x48, 0xd1,
1219 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1220 };
1221
1222 /* Reuse an existing info 10 bundle. */
1223 static const bfd_byte const *tilegx64_plt_tail_entry =
1224 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1225
1226 static const bfd_byte
1227 tilegx32_plt0_entry[PLT_HEADER_SIZE] =
1228 {
1229 0x00, 0x30, 0x48, 0x51,
1230 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */
1231 0x00, 0x30, 0xbc, 0x35,
1232 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */
1233 0xff, 0xaf, 0x30, 0x40,
1234 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */
1235 };
1236
1237 static const bfd_byte
1238 tilegx32_long_plt_entry[PLT_ENTRY_SIZE] =
1239 {
1240 0xdc, 0x0f, 0x00, 0x10,
1241 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */
1242 0xdb, 0x0f, 0x00, 0x10,
1243 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */
1244 0x9c, 0xc6, 0x0d, 0xd0,
1245 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */
1246 0x9b, 0xb6, 0xc5, 0xad,
1247 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */
1248 0xdd, 0x0f, 0x00, 0x70,
1249 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */
1250 };
1251
1252 static const bfd_byte
1253 tilegx32_short_plt_entry[PLT_ENTRY_SIZE] =
1254 {
1255 0x00, 0x30, 0x48, 0x51,
1256 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */
1257 0x9c, 0x06, 0x00, 0x90,
1258 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */
1259 0xdd, 0x0f, 0x00, 0x70,
1260 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */
1261 0x9b, 0xb6, 0x0d, 0x50,
1262 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */
1263 0x00, 0x30, 0x48, 0xd1,
1264 0xff, 0x57, 0x18, 0x18, /* { info 10 } */
1265 };
1266
1267 /* Reuse an existing info 10 bundle. */
1268 static const bfd_byte const *tilegx32_plt_tail_entry =
1269 &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES];
1270
1271 static int
1272 tilegx_plt_entry_build (bfd *output_bfd,
1273 struct tilegx_elf_link_hash_table *htab,
1274 asection *splt, asection *sgotplt,
1275 bfd_vma offset, bfd_vma *r_offset)
1276 {
1277 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1278 int got_offset = (plt_index * GOT_ENTRY_SIZE (htab)
1279 + GOTPLT_HEADER_SIZE (htab));
1280 tilegx_bundle_bits *pc;
1281
1282 /* Compute the distance from the got entry to the lnk. */
1283 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1284 + sgotplt->output_offset
1285 + got_offset
1286 - splt->output_section->vma
1287 - splt->output_offset
1288 - offset
1289 - TILEGX_BUNDLE_SIZE_IN_BYTES;
1290
1291 /* Compute the distance to GOTPLT[0]. */
1292 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1293
1294 /* Check whether we can use the short plt entry with 16-bit offset. */
1295 bfd_boolean short_plt_entry =
1296 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1297
1298 const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *)
1299 (ABI_64_P (output_bfd) ?
1300 (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) :
1301 (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry));
1302
1303 /* Copy the plt entry template. */
1304 memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE);
1305
1306 /* Write the immediate offsets. */
1307 pc = (tilegx_bundle_bits *)(splt->contents + offset);
1308
1309 if (short_plt_entry)
1310 {
1311 /* { lnk r28 } */
1312 pc++;
1313
1314 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */
1315 *pc++ |= create_Imm16_X0 (dist_got_entry)
1316 | create_Imm16_X1 (dist_got0);
1317
1318 /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */
1319 *pc++ |= create_Imm16_X0 (plt_index);
1320 }
1321 else
1322 {
1323 /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */
1324 *pc++ |= create_Imm16_X0 (dist_got_entry >> 16);
1325
1326 /* { moveli r27, &GOTPLT[0] ;
1327 shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */
1328 *pc++ |= create_Imm16_X0 (dist_got0 >> 16)
1329 | create_Imm16_X1 (dist_got_entry);
1330
1331 /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */
1332 *pc++ |= create_Imm16_X1 (dist_got0);
1333
1334 /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */
1335 pc++;
1336
1337 /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */
1338 *pc++ |= create_Imm16_X0 (plt_index);
1339 }
1340
1341 /* Set the relocation offset. */
1342 *r_offset = got_offset;
1343
1344 return plt_index;
1345 }
1346
1347 /* Create an entry in an TILEGX ELF linker hash table. */
1348
1349 static struct bfd_hash_entry *
1350 link_hash_newfunc (struct bfd_hash_entry *entry,
1351 struct bfd_hash_table *table, const char *string)
1352 {
1353 /* Allocate the structure if it has not already been allocated by a
1354 subclass. */
1355 if (entry == NULL)
1356 {
1357 entry =
1358 bfd_hash_allocate (table,
1359 sizeof (struct tilegx_elf_link_hash_entry));
1360 if (entry == NULL)
1361 return entry;
1362 }
1363
1364 /* Call the allocation method of the superclass. */
1365 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1366 if (entry != NULL)
1367 {
1368 struct tilegx_elf_link_hash_entry *eh;
1369
1370 eh = (struct tilegx_elf_link_hash_entry *) entry;
1371 eh->dyn_relocs = NULL;
1372 eh->tls_type = GOT_UNKNOWN;
1373 }
1374
1375 return entry;
1376 }
1377
1378 /* Create a TILEGX ELF linker hash table. */
1379
1380 struct bfd_link_hash_table *
1381 tilegx_elf_link_hash_table_create (bfd *abfd)
1382 {
1383 struct tilegx_elf_link_hash_table *ret;
1384 bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table);
1385
1386 ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt);
1387 if (ret == NULL)
1388 return NULL;
1389
1390 #ifdef BFD64
1391 if (ABI_64_P (abfd))
1392 {
1393 ret->bytes_per_word = 8;
1394 ret->word_align_power = 3;
1395 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1396 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64;
1397 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64;
1398 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64;
1399 ret->r_info = tilegx_elf_r_info_64;
1400 ret->r_symndx = tilegx_elf_r_symndx_64;
1401 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1402 ret->put_word = tilegx_put_word_64;
1403 }
1404 else
1405 #endif
1406 {
1407 ret->bytes_per_word = 4;
1408 ret->word_align_power = 2;
1409 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1410 ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32;
1411 ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32;
1412 ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32;
1413 ret->r_info = tilegx_elf_r_info_32;
1414 ret->r_symndx = tilegx_elf_r_symndx_32;
1415 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1416 ret->put_word = tilegx_put_word_32;
1417 }
1418
1419 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1420 sizeof (struct tilegx_elf_link_hash_entry),
1421 TILEGX_ELF_DATA))
1422 {
1423 free (ret);
1424 return NULL;
1425 }
1426
1427 return &ret->elf.root;
1428 }
1429
1430 /* Create the .got section. */
1431
1432 static bfd_boolean
1433 tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1434 {
1435 flagword flags;
1436 asection *s, *s_got;
1437 struct elf_link_hash_entry *h;
1438 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1439 struct elf_link_hash_table *htab = elf_hash_table (info);
1440
1441 /* This function may be called more than once. */
1442 s = bfd_get_linker_section (abfd, ".got");
1443 if (s != NULL)
1444 return TRUE;
1445
1446 flags = bed->dynamic_sec_flags;
1447
1448 s = bfd_make_section_anyway_with_flags (abfd,
1449 (bed->rela_plts_and_copies_p
1450 ? ".rela.got" : ".rel.got"),
1451 (bed->dynamic_sec_flags
1452 | SEC_READONLY));
1453 if (s == NULL
1454 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1455 return FALSE;
1456 htab->srelgot = s;
1457
1458 s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags);
1459 if (s == NULL
1460 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1461 return FALSE;
1462 htab->sgot = s;
1463
1464 /* The first bit of the global offset table is the header. */
1465 s->size += bed->got_header_size;
1466
1467 if (bed->want_got_plt)
1468 {
1469 s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
1470 if (s == NULL
1471 || !bfd_set_section_alignment (abfd, s,
1472 bed->s->log_file_align))
1473 return FALSE;
1474 htab->sgotplt = s;
1475
1476 /* Reserve room for the header. */
1477 s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info));
1478 }
1479
1480 if (bed->want_got_sym)
1481 {
1482 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1483 section. We don't do this in the linker script because we don't want
1484 to define the symbol if we are not creating a global offset
1485 table. */
1486 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1487 "_GLOBAL_OFFSET_TABLE_");
1488 elf_hash_table (info)->hgot = h;
1489 if (h == NULL)
1490 return FALSE;
1491 }
1492
1493 return TRUE;
1494 }
1495
1496 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1497 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1498 hash table. */
1499
1500 bfd_boolean
1501 tilegx_elf_create_dynamic_sections (bfd *dynobj,
1502 struct bfd_link_info *info)
1503 {
1504 struct tilegx_elf_link_hash_table *htab;
1505
1506 htab = tilegx_elf_hash_table (info);
1507 BFD_ASSERT (htab != NULL);
1508
1509 if (!tilegx_elf_create_got_section (dynobj, info))
1510 return FALSE;
1511
1512 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1513 return FALSE;
1514
1515 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
1516 if (!info->shared)
1517 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
1518
1519 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1520 || (!info->shared && !htab->srelbss))
1521 abort ();
1522
1523 return TRUE;
1524 }
1525
1526 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1527
1528 void
1529 tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info,
1530 struct elf_link_hash_entry *dir,
1531 struct elf_link_hash_entry *ind)
1532 {
1533 struct tilegx_elf_link_hash_entry *edir, *eind;
1534
1535 edir = (struct tilegx_elf_link_hash_entry *) dir;
1536 eind = (struct tilegx_elf_link_hash_entry *) ind;
1537
1538 if (eind->dyn_relocs != NULL)
1539 {
1540 if (edir->dyn_relocs != NULL)
1541 {
1542 struct tilegx_elf_dyn_relocs **pp;
1543 struct tilegx_elf_dyn_relocs *p;
1544
1545 /* Add reloc counts against the indirect sym to the direct sym
1546 list. Merge any entries against the same section. */
1547 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1548 {
1549 struct tilegx_elf_dyn_relocs *q;
1550
1551 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1552 if (q->sec == p->sec)
1553 {
1554 q->pc_count += p->pc_count;
1555 q->count += p->count;
1556 *pp = p->next;
1557 break;
1558 }
1559 if (q == NULL)
1560 pp = &p->next;
1561 }
1562 *pp = edir->dyn_relocs;
1563 }
1564
1565 edir->dyn_relocs = eind->dyn_relocs;
1566 eind->dyn_relocs = NULL;
1567 }
1568
1569 if (ind->root.type == bfd_link_hash_indirect
1570 && dir->got.refcount <= 0)
1571 {
1572 edir->tls_type = eind->tls_type;
1573 eind->tls_type = GOT_UNKNOWN;
1574 }
1575 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1576 }
1577
1578 static int
1579 tilegx_tls_translate_to_le (int r_type)
1580 {
1581 switch (r_type)
1582 {
1583 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1584 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1585 return R_TILEGX_IMM16_X0_HW0_TLS_LE;
1586
1587 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1588 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1589 return R_TILEGX_IMM16_X1_HW0_TLS_LE;
1590
1591 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1592 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1593 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE;
1594
1595 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1596 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1597 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE;
1598
1599 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1600 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1601 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE;
1602
1603 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1604 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1605 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE;
1606 }
1607 return r_type;
1608 }
1609
1610 static int
1611 tilegx_tls_translate_to_ie (int r_type)
1612 {
1613 switch (r_type)
1614 {
1615 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1616 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1617 return R_TILEGX_IMM16_X0_HW0_TLS_IE;
1618
1619 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1620 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1621 return R_TILEGX_IMM16_X1_HW0_TLS_IE;
1622
1623 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1624 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1625 return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE;
1626
1627 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1628 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1629 return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE;
1630
1631 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1632 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1633 return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE;
1634
1635 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1636 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1637 return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE;
1638 }
1639 return r_type;
1640 }
1641
1642 static int
1643 tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type,
1644 int is_local, bfd_boolean disable_le_transition)
1645 {
1646 if (info->shared)
1647 return r_type;
1648
1649 if (is_local && !disable_le_transition)
1650 return tilegx_tls_translate_to_le (r_type);
1651 else
1652 return tilegx_tls_translate_to_ie (r_type);
1653 }
1654
1655 /* Look through the relocs for a section during the first phase, and
1656 allocate space in the global offset table or procedure linkage
1657 table. */
1658
1659 bfd_boolean
1660 tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1661 asection *sec, const Elf_Internal_Rela *relocs)
1662 {
1663 struct tilegx_elf_link_hash_table *htab;
1664 Elf_Internal_Shdr *symtab_hdr;
1665 struct elf_link_hash_entry **sym_hashes;
1666 const Elf_Internal_Rela *rel;
1667 const Elf_Internal_Rela *rel_end;
1668 asection *sreloc;
1669 int num_relocs;
1670 bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE;
1671
1672 if (info->relocatable)
1673 return TRUE;
1674
1675 htab = tilegx_elf_hash_table (info);
1676 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1677 sym_hashes = elf_sym_hashes (abfd);
1678
1679 sreloc = NULL;
1680
1681 num_relocs = sec->reloc_count;
1682
1683 BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0);
1684
1685 if (htab->elf.dynobj == NULL)
1686 htab->elf.dynobj = abfd;
1687
1688 rel_end = relocs + num_relocs;
1689
1690 /* Check whether to do optimization to transform TLS GD/IE
1691 referehces to TLS LE. We disable it if we're linking with old
1692 TLS code sequences that do not support such optimization. Old
1693 TLS code sequences have tls_gd_call/tls_ie_load relocations but
1694 no tls_add relocations. */
1695 for (rel = relocs; rel < rel_end && !has_tls_add; rel++)
1696 {
1697 int r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1698 switch (r_type)
1699 {
1700 case R_TILEGX_TLS_GD_CALL:
1701 case R_TILEGX_TLS_IE_LOAD:
1702 has_tls_gd_or_ie = TRUE;
1703 break;
1704 case R_TILEGX_IMM8_X0_TLS_ADD:
1705 case R_TILEGX_IMM8_Y0_TLS_ADD:
1706 case R_TILEGX_IMM8_X1_TLS_ADD:
1707 case R_TILEGX_IMM8_Y1_TLS_ADD:
1708 has_tls_add = TRUE;
1709 break;
1710 }
1711 }
1712
1713 sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add);
1714 htab->disable_le_transition |= sec->sec_flg0;
1715
1716 for (rel = relocs; rel < rel_end; rel++)
1717 {
1718 unsigned int r_type;
1719 unsigned long r_symndx;
1720 struct elf_link_hash_entry *h;
1721 int tls_type;
1722
1723 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
1724 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
1725
1726 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1727 {
1728 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1729 abfd, r_symndx);
1730 return FALSE;
1731 }
1732
1733 if (r_symndx < symtab_hdr->sh_info)
1734 h = NULL;
1735 else
1736 {
1737 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1738 while (h->root.type == bfd_link_hash_indirect
1739 || h->root.type == bfd_link_hash_warning)
1740 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1741 }
1742
1743 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
1744 sec->sec_flg0);
1745 switch (r_type)
1746 {
1747 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
1748 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
1749 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
1750 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
1751 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
1752 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
1753 if (info->shared)
1754 goto r_tilegx_plt32;
1755 break;
1756
1757 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
1758 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
1759 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
1760 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
1761 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
1762 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
1763 BFD_ASSERT (info->shared);
1764 tls_type = GOT_TLS_GD;
1765 goto have_got_reference;
1766
1767 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
1768 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
1769 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
1770 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
1771 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
1772 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
1773 tls_type = GOT_TLS_IE;
1774 if (info->shared)
1775 info->flags |= DF_STATIC_TLS;
1776 goto have_got_reference;
1777
1778 case R_TILEGX_IMM16_X0_HW0_GOT:
1779 case R_TILEGX_IMM16_X1_HW0_GOT:
1780 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
1781 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
1782 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
1783 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
1784 tls_type = GOT_NORMAL;
1785 /* Fall Through */
1786
1787 have_got_reference:
1788 /* This symbol requires a global offset table entry. */
1789 {
1790 int old_tls_type;
1791
1792 if (h != NULL)
1793 {
1794 h->got.refcount += 1;
1795 old_tls_type = tilegx_elf_hash_entry(h)->tls_type;
1796 }
1797 else
1798 {
1799 bfd_signed_vma *local_got_refcounts;
1800
1801 /* This is a global offset table entry for a local symbol. */
1802 local_got_refcounts = elf_local_got_refcounts (abfd);
1803 if (local_got_refcounts == NULL)
1804 {
1805 bfd_size_type size;
1806
1807 size = symtab_hdr->sh_info;
1808 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1809 local_got_refcounts = ((bfd_signed_vma *)
1810 bfd_zalloc (abfd, size));
1811 if (local_got_refcounts == NULL)
1812 return FALSE;
1813 elf_local_got_refcounts (abfd) = local_got_refcounts;
1814 _bfd_tilegx_elf_local_got_tls_type (abfd)
1815 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1816 }
1817 local_got_refcounts[r_symndx] += 1;
1818 old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx];
1819 }
1820
1821 /* If a TLS symbol is accessed using IE at least once,
1822 there is no point to use dynamic model for it. */
1823 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1824 && (old_tls_type != GOT_TLS_GD
1825 || tls_type != GOT_TLS_IE))
1826 {
1827 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1828 tls_type = old_tls_type;
1829 else
1830 {
1831 (*_bfd_error_handler)
1832 (_("%B: `%s' accessed both as normal and thread local symbol"),
1833 abfd, h ? h->root.root.string : "<local>");
1834 return FALSE;
1835 }
1836 }
1837
1838 if (old_tls_type != tls_type)
1839 {
1840 if (h != NULL)
1841 tilegx_elf_hash_entry (h)->tls_type = tls_type;
1842 else
1843 _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1844 }
1845 }
1846
1847 if (htab->elf.sgot == NULL)
1848 {
1849 if (!tilegx_elf_create_got_section (htab->elf.dynobj, info))
1850 return FALSE;
1851 }
1852 break;
1853
1854 case R_TILEGX_TLS_GD_CALL:
1855 if (info->shared)
1856 {
1857 /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs
1858 against __tls_get_addr. */
1859 struct bfd_link_hash_entry *bh = NULL;
1860 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1861 "__tls_get_addr", 0,
1862 bfd_und_section_ptr, 0,
1863 NULL, FALSE, FALSE,
1864 &bh))
1865 return FALSE;
1866 h = (struct elf_link_hash_entry *) bh;
1867 }
1868 else
1869 break;
1870 /* Fall through */
1871
1872 case R_TILEGX_JUMPOFF_X1_PLT:
1873 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
1874 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
1875 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
1876 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
1877 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
1878 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
1879 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
1880 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
1881 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
1882 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
1883 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
1884 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
1885 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
1886 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
1887 /* This symbol requires a procedure linkage table entry. We
1888 actually build the entry in adjust_dynamic_symbol,
1889 because this might be a case of linking PIC code without
1890 linking in any dynamic objects, in which case we don't
1891 need to generate a procedure linkage table after all. */
1892
1893 if (h != NULL)
1894 {
1895 h->needs_plt = 1;
1896 h->plt.refcount += 1;
1897 }
1898 break;
1899
1900 case R_TILEGX_64_PCREL:
1901 case R_TILEGX_32_PCREL:
1902 case R_TILEGX_16_PCREL:
1903 case R_TILEGX_8_PCREL:
1904 case R_TILEGX_IMM16_X0_HW0_PCREL:
1905 case R_TILEGX_IMM16_X1_HW0_PCREL:
1906 case R_TILEGX_IMM16_X0_HW1_PCREL:
1907 case R_TILEGX_IMM16_X1_HW1_PCREL:
1908 case R_TILEGX_IMM16_X0_HW2_PCREL:
1909 case R_TILEGX_IMM16_X1_HW2_PCREL:
1910 case R_TILEGX_IMM16_X0_HW3_PCREL:
1911 case R_TILEGX_IMM16_X1_HW3_PCREL:
1912 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
1913 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
1914 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
1915 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
1916 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
1917 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
1918 if (h != NULL)
1919 h->non_got_ref = 1;
1920
1921 if (h != NULL
1922 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1923 break;
1924 /* Fall through. */
1925
1926 case R_TILEGX_64:
1927 case R_TILEGX_32:
1928 case R_TILEGX_16:
1929 case R_TILEGX_8:
1930 case R_TILEGX_HW0:
1931 case R_TILEGX_HW1:
1932 case R_TILEGX_HW2:
1933 case R_TILEGX_HW3:
1934 case R_TILEGX_HW0_LAST:
1935 case R_TILEGX_HW1_LAST:
1936 case R_TILEGX_HW2_LAST:
1937 case R_TILEGX_COPY:
1938 case R_TILEGX_GLOB_DAT:
1939 case R_TILEGX_JMP_SLOT:
1940 case R_TILEGX_RELATIVE:
1941 case R_TILEGX_BROFF_X1:
1942 case R_TILEGX_JUMPOFF_X1:
1943 case R_TILEGX_IMM8_X0:
1944 case R_TILEGX_IMM8_Y0:
1945 case R_TILEGX_IMM8_X1:
1946 case R_TILEGX_IMM8_Y1:
1947 case R_TILEGX_DEST_IMM8_X1:
1948 case R_TILEGX_MT_IMM14_X1:
1949 case R_TILEGX_MF_IMM14_X1:
1950 case R_TILEGX_MMSTART_X0:
1951 case R_TILEGX_MMEND_X0:
1952 case R_TILEGX_SHAMT_X0:
1953 case R_TILEGX_SHAMT_X1:
1954 case R_TILEGX_SHAMT_Y0:
1955 case R_TILEGX_SHAMT_Y1:
1956 case R_TILEGX_IMM16_X0_HW0:
1957 case R_TILEGX_IMM16_X1_HW0:
1958 case R_TILEGX_IMM16_X0_HW1:
1959 case R_TILEGX_IMM16_X1_HW1:
1960 case R_TILEGX_IMM16_X0_HW2:
1961 case R_TILEGX_IMM16_X1_HW2:
1962 case R_TILEGX_IMM16_X0_HW3:
1963 case R_TILEGX_IMM16_X1_HW3:
1964 case R_TILEGX_IMM16_X0_HW0_LAST:
1965 case R_TILEGX_IMM16_X1_HW0_LAST:
1966 case R_TILEGX_IMM16_X0_HW1_LAST:
1967 case R_TILEGX_IMM16_X1_HW1_LAST:
1968 case R_TILEGX_IMM16_X0_HW2_LAST:
1969 case R_TILEGX_IMM16_X1_HW2_LAST:
1970 if (h != NULL)
1971 h->non_got_ref = 1;
1972
1973 r_tilegx_plt32:
1974 if (h != NULL && !info->shared)
1975 {
1976 /* We may need a .plt entry if the function this reloc
1977 refers to is in a shared lib. */
1978 h->plt.refcount += 1;
1979 }
1980
1981 /* If we are creating a shared library, and this is a reloc
1982 against a global symbol, or a non PC relative reloc
1983 against a local symbol, then we need to copy the reloc
1984 into the shared library. However, if we are linking with
1985 -Bsymbolic, we do not need to copy a reloc against a
1986 global symbol which is defined in an object we are
1987 including in the link (i.e., DEF_REGULAR is set). At
1988 this point we have not seen all the input files, so it is
1989 possible that DEF_REGULAR is not set now but will be set
1990 later (it is never cleared). In case of a weak definition,
1991 DEF_REGULAR may be cleared later by a strong definition in
1992 a shared library. We account for that possibility below by
1993 storing information in the relocs_copied field of the hash
1994 table entry. A similar situation occurs when creating
1995 shared libraries and symbol visibility changes render the
1996 symbol local.
1997
1998 If on the other hand, we are creating an executable, we
1999 may need to keep relocations for symbols satisfied by a
2000 dynamic library if we manage to avoid copy relocs for the
2001 symbol. */
2002 if ((info->shared
2003 && (sec->flags & SEC_ALLOC) != 0
2004 && (! tilegx_elf_howto_table[r_type].pc_relative
2005 || (h != NULL
2006 && (! info->symbolic
2007 || h->root.type == bfd_link_hash_defweak
2008 || !h->def_regular))))
2009 || (!info->shared
2010 && (sec->flags & SEC_ALLOC) != 0
2011 && h != NULL
2012 && (h->root.type == bfd_link_hash_defweak
2013 || !h->def_regular)))
2014 {
2015 struct tilegx_elf_dyn_relocs *p;
2016 struct tilegx_elf_dyn_relocs **head;
2017
2018 /* When creating a shared object, we must copy these
2019 relocs into the output file. We create a reloc
2020 section in dynobj and make room for the reloc. */
2021 if (sreloc == NULL)
2022 {
2023 sreloc = _bfd_elf_make_dynamic_reloc_section
2024 (sec, htab->elf.dynobj, htab->word_align_power, abfd,
2025 /*rela?*/ TRUE);
2026
2027 if (sreloc == NULL)
2028 return FALSE;
2029 }
2030
2031 /* If this is a global symbol, we count the number of
2032 relocations we need for this symbol. */
2033 if (h != NULL)
2034 head =
2035 &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs;
2036 else
2037 {
2038 /* Track dynamic relocs needed for local syms too.
2039 We really need local syms available to do this
2040 easily. Oh well. */
2041
2042 asection *s;
2043 void *vpp;
2044 Elf_Internal_Sym *isym;
2045
2046 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
2047 abfd, r_symndx);
2048 if (isym == NULL)
2049 return FALSE;
2050
2051 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
2052 if (s == NULL)
2053 s = sec;
2054
2055 vpp = &elf_section_data (s)->local_dynrel;
2056 head = (struct tilegx_elf_dyn_relocs **) vpp;
2057 }
2058
2059 p = *head;
2060 if (p == NULL || p->sec != sec)
2061 {
2062 bfd_size_type amt = sizeof *p;
2063 p = ((struct tilegx_elf_dyn_relocs *)
2064 bfd_alloc (htab->elf.dynobj, amt));
2065 if (p == NULL)
2066 return FALSE;
2067 p->next = *head;
2068 *head = p;
2069 p->sec = sec;
2070 p->count = 0;
2071 p->pc_count = 0;
2072 }
2073
2074 p->count += 1;
2075 if (tilegx_elf_howto_table[r_type].pc_relative)
2076 p->pc_count += 1;
2077 }
2078
2079 break;
2080
2081 case R_TILEGX_GNU_VTINHERIT:
2082 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2083 return FALSE;
2084 break;
2085
2086 case R_TILEGX_GNU_VTENTRY:
2087 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2088 return FALSE;
2089 break;
2090
2091 default:
2092 break;
2093 }
2094 }
2095
2096 return TRUE;
2097 }
2098
2099 \f
2100 asection *
2101 tilegx_elf_gc_mark_hook (asection *sec,
2102 struct bfd_link_info *info,
2103 Elf_Internal_Rela *rel,
2104 struct elf_link_hash_entry *h,
2105 Elf_Internal_Sym *sym)
2106 {
2107 if (h != NULL)
2108 {
2109 switch (TILEGX_ELF_R_TYPE (rel->r_info))
2110 {
2111 case R_TILEGX_GNU_VTINHERIT:
2112 case R_TILEGX_GNU_VTENTRY:
2113 break;
2114 }
2115 }
2116
2117 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
2118 }
2119
2120 /* Update the got entry reference counts for the section being removed. */
2121 bfd_boolean
2122 tilegx_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
2123 asection *sec, const Elf_Internal_Rela *relocs)
2124 {
2125 struct tilegx_elf_link_hash_table *htab;
2126 Elf_Internal_Shdr *symtab_hdr;
2127 struct elf_link_hash_entry **sym_hashes;
2128 bfd_signed_vma *local_got_refcounts;
2129 const Elf_Internal_Rela *rel, *relend;
2130
2131 if (info->relocatable)
2132 return TRUE;
2133
2134 BFD_ASSERT (is_tilegx_elf (abfd) || sec->reloc_count == 0);
2135
2136 elf_section_data (sec)->local_dynrel = NULL;
2137
2138 htab = tilegx_elf_hash_table (info);
2139 BFD_ASSERT (htab != NULL);
2140 symtab_hdr = &elf_symtab_hdr (abfd);
2141 sym_hashes = elf_sym_hashes (abfd);
2142 local_got_refcounts = elf_local_got_refcounts (abfd);
2143
2144 relend = relocs + sec->reloc_count;
2145 for (rel = relocs; rel < relend; rel++)
2146 {
2147 unsigned long r_symndx;
2148 unsigned int r_type;
2149 struct elf_link_hash_entry *h = NULL;
2150
2151 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
2152 if (r_symndx >= symtab_hdr->sh_info)
2153 {
2154 struct tilegx_elf_link_hash_entry *eh;
2155 struct tilegx_elf_dyn_relocs **pp;
2156 struct tilegx_elf_dyn_relocs *p;
2157
2158 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2159 while (h->root.type == bfd_link_hash_indirect
2160 || h->root.type == bfd_link_hash_warning)
2161 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2162 eh = (struct tilegx_elf_link_hash_entry *) h;
2163 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2164 if (p->sec == sec)
2165 {
2166 /* Everything must go for SEC. */
2167 *pp = p->next;
2168 break;
2169 }
2170 }
2171
2172 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
2173 r_type = tilegx_elf_tls_transition (info, r_type, h != NULL,
2174 sec->sec_flg0);
2175 switch (r_type)
2176 {
2177 case R_TILEGX_IMM16_X0_HW0_GOT:
2178 case R_TILEGX_IMM16_X1_HW0_GOT:
2179 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
2180 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
2181 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
2182 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
2183 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
2184 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
2185 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
2186 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
2187 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
2188 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
2189 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
2190 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
2191 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
2192 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
2193 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
2194 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
2195 if (h != NULL)
2196 {
2197 if (h->got.refcount > 0)
2198 h->got.refcount--;
2199 }
2200 else
2201 {
2202 if (local_got_refcounts &&
2203 local_got_refcounts[r_symndx] > 0)
2204 local_got_refcounts[r_symndx]--;
2205 }
2206 break;
2207
2208 case R_TILEGX_64_PCREL:
2209 case R_TILEGX_32_PCREL:
2210 case R_TILEGX_16_PCREL:
2211 case R_TILEGX_8_PCREL:
2212 case R_TILEGX_IMM16_X0_HW0_PCREL:
2213 case R_TILEGX_IMM16_X1_HW0_PCREL:
2214 case R_TILEGX_IMM16_X0_HW1_PCREL:
2215 case R_TILEGX_IMM16_X1_HW1_PCREL:
2216 case R_TILEGX_IMM16_X0_HW2_PCREL:
2217 case R_TILEGX_IMM16_X1_HW2_PCREL:
2218 case R_TILEGX_IMM16_X0_HW3_PCREL:
2219 case R_TILEGX_IMM16_X1_HW3_PCREL:
2220 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
2221 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
2222 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
2223 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
2224 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
2225 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
2226 if (h != NULL
2227 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2228 break;
2229 /* Fall through. */
2230
2231 case R_TILEGX_64:
2232 case R_TILEGX_32:
2233 case R_TILEGX_16:
2234 case R_TILEGX_8:
2235 case R_TILEGX_HW0:
2236 case R_TILEGX_HW1:
2237 case R_TILEGX_HW2:
2238 case R_TILEGX_HW3:
2239 case R_TILEGX_HW0_LAST:
2240 case R_TILEGX_HW1_LAST:
2241 case R_TILEGX_HW2_LAST:
2242 case R_TILEGX_COPY:
2243 case R_TILEGX_GLOB_DAT:
2244 case R_TILEGX_JMP_SLOT:
2245 case R_TILEGX_RELATIVE:
2246 case R_TILEGX_BROFF_X1:
2247 case R_TILEGX_JUMPOFF_X1:
2248 case R_TILEGX_IMM8_X0:
2249 case R_TILEGX_IMM8_Y0:
2250 case R_TILEGX_IMM8_X1:
2251 case R_TILEGX_IMM8_Y1:
2252 case R_TILEGX_DEST_IMM8_X1:
2253 case R_TILEGX_MT_IMM14_X1:
2254 case R_TILEGX_MF_IMM14_X1:
2255 case R_TILEGX_MMSTART_X0:
2256 case R_TILEGX_MMEND_X0:
2257 case R_TILEGX_SHAMT_X0:
2258 case R_TILEGX_SHAMT_X1:
2259 case R_TILEGX_SHAMT_Y0:
2260 case R_TILEGX_SHAMT_Y1:
2261 case R_TILEGX_IMM16_X0_HW0:
2262 case R_TILEGX_IMM16_X1_HW0:
2263 case R_TILEGX_IMM16_X0_HW1:
2264 case R_TILEGX_IMM16_X1_HW1:
2265 case R_TILEGX_IMM16_X0_HW2:
2266 case R_TILEGX_IMM16_X1_HW2:
2267 case R_TILEGX_IMM16_X0_HW3:
2268 case R_TILEGX_IMM16_X1_HW3:
2269 case R_TILEGX_IMM16_X0_HW0_LAST:
2270 case R_TILEGX_IMM16_X1_HW0_LAST:
2271 case R_TILEGX_IMM16_X0_HW1_LAST:
2272 case R_TILEGX_IMM16_X1_HW1_LAST:
2273 case R_TILEGX_IMM16_X0_HW2_LAST:
2274 case R_TILEGX_IMM16_X1_HW2_LAST:
2275 if (info->shared)
2276 break;
2277 /* Fall through. */
2278
2279 case R_TILEGX_JUMPOFF_X1_PLT:
2280 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
2281 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
2282 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
2283 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
2284 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
2285 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
2286 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
2287 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
2288 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
2289 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
2290 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
2291 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
2292 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
2293 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
2294 if (h != NULL)
2295 {
2296 if (h->plt.refcount > 0)
2297 h->plt.refcount--;
2298 }
2299 break;
2300
2301 default:
2302 break;
2303 }
2304 }
2305
2306 return TRUE;
2307 }
2308
2309 /* Adjust a symbol defined by a dynamic object and referenced by a
2310 regular object. The current definition is in some section of the
2311 dynamic object, but we're not including those sections. We have to
2312 change the definition to something the rest of the link can
2313 understand. */
2314
2315 bfd_boolean
2316 tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2317 struct elf_link_hash_entry *h)
2318 {
2319 struct tilegx_elf_link_hash_table *htab;
2320 struct tilegx_elf_link_hash_entry * eh;
2321 struct tilegx_elf_dyn_relocs *p;
2322 bfd *dynobj;
2323 asection *s;
2324
2325 htab = tilegx_elf_hash_table (info);
2326 BFD_ASSERT (htab != NULL);
2327
2328 dynobj = htab->elf.dynobj;
2329
2330 /* Make sure we know what is going on here. */
2331 BFD_ASSERT (dynobj != NULL
2332 && (h->needs_plt
2333 || h->u.weakdef != NULL
2334 || (h->def_dynamic
2335 && h->ref_regular
2336 && !h->def_regular)));
2337
2338 /* If this is a function, put it in the procedure linkage table. We
2339 will fill in the contents of the procedure linkage table later
2340 (although we could actually do it here). */
2341 if (h->type == STT_FUNC || h->needs_plt)
2342 {
2343 if (h->plt.refcount <= 0
2344 || SYMBOL_CALLS_LOCAL (info, h)
2345 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2346 && h->root.type == bfd_link_hash_undefweak))
2347 {
2348 /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT
2349 reloc in an input file, but the symbol was never referred
2350 to by a dynamic object, or if all references were garbage
2351 collected. In such a case, we don't actually need to build
2352 a procedure linkage table, and we can just do a
2353 R_TILEGX_JUMPOFF_X1 relocation instead. */
2354 h->plt.offset = (bfd_vma) -1;
2355 h->needs_plt = 0;
2356 }
2357
2358 return TRUE;
2359 }
2360 else
2361 h->plt.offset = (bfd_vma) -1;
2362
2363 /* If this is a weak symbol, and there is a real definition, the
2364 processor independent code will have arranged for us to see the
2365 real definition first, and we can just use the same value. */
2366 if (h->u.weakdef != NULL)
2367 {
2368 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2369 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2370 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2371 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2372 return TRUE;
2373 }
2374
2375 /* This is a reference to a symbol defined by a dynamic object which
2376 is not a function. */
2377
2378 /* If we are creating a shared library, we must presume that the
2379 only references to the symbol are via the global offset table.
2380 For such cases we need not do anything here; the relocations will
2381 be handled correctly by relocate_section. */
2382 if (info->shared)
2383 return TRUE;
2384
2385 /* If there are no references to this symbol that do not use the
2386 GOT, we don't need to generate a copy reloc. */
2387 if (!h->non_got_ref)
2388 return TRUE;
2389
2390 /* If -z nocopyreloc was given, we won't generate them either. */
2391 if (info->nocopyreloc)
2392 {
2393 h->non_got_ref = 0;
2394 return TRUE;
2395 }
2396
2397 eh = (struct tilegx_elf_link_hash_entry *) h;
2398 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2399 {
2400 s = p->sec->output_section;
2401 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2402 break;
2403 }
2404
2405 /* If we didn't find any dynamic relocs in read-only sections, then
2406 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2407 if (p == NULL)
2408 {
2409 h->non_got_ref = 0;
2410 return TRUE;
2411 }
2412
2413 /* We must allocate the symbol in our .dynbss section, which will
2414 become part of the .bss section of the executable. There will be
2415 an entry for this symbol in the .dynsym section. The dynamic
2416 object will contain position independent code, so all references
2417 from the dynamic object to this symbol will go through the global
2418 offset table. The dynamic linker will use the .dynsym entry to
2419 determine the address it must put in the global offset table, so
2420 both the dynamic object and the regular object will refer to the
2421 same memory location for the variable. */
2422
2423 /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker
2424 to copy the initial value out of the dynamic object and into the
2425 runtime process image. We need to remember the offset into the
2426 .rel.bss section we are going to use. */
2427 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2428 {
2429 htab->srelbss->size += TILEGX_ELF_RELA_BYTES (htab);
2430 h->needs_copy = 1;
2431 }
2432
2433 return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
2434 }
2435
2436 /* Allocate space in .plt, .got and associated reloc sections for
2437 dynamic relocs. */
2438
2439 static bfd_boolean
2440 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2441 {
2442 struct bfd_link_info *info;
2443 struct tilegx_elf_link_hash_table *htab;
2444 struct tilegx_elf_link_hash_entry *eh;
2445 struct tilegx_elf_dyn_relocs *p;
2446
2447 if (h->root.type == bfd_link_hash_indirect)
2448 return TRUE;
2449
2450 info = (struct bfd_link_info *) inf;
2451 htab = tilegx_elf_hash_table (info);
2452 BFD_ASSERT (htab != NULL);
2453
2454 if (htab->elf.dynamic_sections_created
2455 && h->plt.refcount > 0)
2456 {
2457 /* Make sure this symbol is output as a dynamic symbol.
2458 Undefined weak syms won't yet be marked as dynamic. */
2459 if (h->dynindx == -1
2460 && !h->forced_local)
2461 {
2462 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2463 return FALSE;
2464 }
2465
2466 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2467 {
2468 asection *s = htab->elf.splt;
2469
2470 /* Allocate room for the header and tail. */
2471 if (s->size == 0)
2472 {
2473 s->size = PLT_ENTRY_SIZE;
2474 }
2475
2476 h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE;
2477
2478 /* If this symbol is not defined in a regular file, and we are
2479 not generating a shared library, then set the symbol to this
2480 location in the .plt. This is required to make function
2481 pointers compare as equal between the normal executable and
2482 the shared library. */
2483 if (! info->shared
2484 && !h->def_regular)
2485 {
2486 h->root.u.def.section = s;
2487 h->root.u.def.value = h->plt.offset;
2488 }
2489
2490 /* Make room for this entry. */
2491 s->size += PLT_ENTRY_SIZE;
2492
2493 /* We also need to make an entry in the .got.plt section. */
2494 htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab);
2495
2496 /* We also need to make an entry in the .rela.plt section. */
2497 htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab);
2498 }
2499 else
2500 {
2501 h->plt.offset = (bfd_vma) -1;
2502 h->needs_plt = 0;
2503 }
2504 }
2505 else
2506 {
2507 h->plt.offset = (bfd_vma) -1;
2508 h->needs_plt = 0;
2509 }
2510
2511 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2512 requiring no TLS entry. */
2513 if (h->got.refcount > 0
2514 && !htab->disable_le_transition
2515 && !info->shared
2516 && h->dynindx == -1
2517 && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2518 h->got.offset = (bfd_vma) -1;
2519 else if (h->got.refcount > 0)
2520 {
2521 asection *s;
2522 bfd_boolean dyn;
2523 int tls_type = tilegx_elf_hash_entry(h)->tls_type;
2524
2525 /* Make sure this symbol is output as a dynamic symbol.
2526 Undefined weak syms won't yet be marked as dynamic. */
2527 if (h->dynindx == -1
2528 && !h->forced_local)
2529 {
2530 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2531 return FALSE;
2532 }
2533
2534 s = htab->elf.sgot;
2535 h->got.offset = s->size;
2536 s->size += TILEGX_ELF_WORD_BYTES (htab);
2537 /* TLS_GD entries need 2 consecutive GOT slots. */
2538 if (tls_type == GOT_TLS_GD)
2539 s->size += TILEGX_ELF_WORD_BYTES (htab);
2540 dyn = htab->elf.dynamic_sections_created;
2541 /* TLS_IE needs one dynamic relocation,
2542 TLS_GD needs two if local symbol and two if global. */
2543 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2544 htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab);
2545 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2546 htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab);
2547 }
2548 else
2549 h->got.offset = (bfd_vma) -1;
2550
2551 eh = (struct tilegx_elf_link_hash_entry *) h;
2552 if (eh->dyn_relocs == NULL)
2553 return TRUE;
2554
2555 /* In the shared -Bsymbolic case, discard space allocated for
2556 dynamic pc-relative relocs against symbols which turn out to be
2557 defined in regular objects. For the normal shared case, discard
2558 space for pc-relative relocs that have become local due to symbol
2559 visibility changes. */
2560
2561 if (info->shared)
2562 {
2563 if (SYMBOL_CALLS_LOCAL (info, h))
2564 {
2565 struct tilegx_elf_dyn_relocs **pp;
2566
2567 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2568 {
2569 p->count -= p->pc_count;
2570 p->pc_count = 0;
2571 if (p->count == 0)
2572 *pp = p->next;
2573 else
2574 pp = &p->next;
2575 }
2576 }
2577
2578 /* Also discard relocs on undefined weak syms with non-default
2579 visibility. */
2580 if (eh->dyn_relocs != NULL
2581 && h->root.type == bfd_link_hash_undefweak)
2582 {
2583 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2584 eh->dyn_relocs = NULL;
2585
2586 /* Make sure undefined weak symbols are output as a dynamic
2587 symbol in PIEs. */
2588 else if (h->dynindx == -1
2589 && !h->forced_local)
2590 {
2591 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2592 return FALSE;
2593 }
2594 }
2595 }
2596 else
2597 {
2598 /* For the non-shared case, discard space for relocs against
2599 symbols which turn out to need copy relocs or are not
2600 dynamic. */
2601
2602 if (!h->non_got_ref
2603 && ((h->def_dynamic
2604 && !h->def_regular)
2605 || (htab->elf.dynamic_sections_created
2606 && (h->root.type == bfd_link_hash_undefweak
2607 || h->root.type == bfd_link_hash_undefined))))
2608 {
2609 /* Make sure this symbol is output as a dynamic symbol.
2610 Undefined weak syms won't yet be marked as dynamic. */
2611 if (h->dynindx == -1
2612 && !h->forced_local)
2613 {
2614 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2615 return FALSE;
2616 }
2617
2618 /* If that succeeded, we know we'll be keeping all the
2619 relocs. */
2620 if (h->dynindx != -1)
2621 goto keep;
2622 }
2623
2624 eh->dyn_relocs = NULL;
2625
2626 keep: ;
2627 }
2628
2629 /* Finally, allocate space. */
2630 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2631 {
2632 asection *sreloc = elf_section_data (p->sec)->sreloc;
2633 sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2634 }
2635
2636 return TRUE;
2637 }
2638
2639 /* Find any dynamic relocs that apply to read-only sections. */
2640
2641 static bfd_boolean
2642 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2643 {
2644 struct tilegx_elf_link_hash_entry *eh;
2645 struct tilegx_elf_dyn_relocs *p;
2646
2647 eh = (struct tilegx_elf_link_hash_entry *) h;
2648 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2649 {
2650 asection *s = p->sec->output_section;
2651
2652 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2653 {
2654 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2655
2656 info->flags |= DF_TEXTREL;
2657
2658 /* Not an error, just cut short the traversal. */
2659 return FALSE;
2660 }
2661 }
2662 return TRUE;
2663 }
2664
2665 /* Return true if the dynamic symbol for a given section should be
2666 omitted when creating a shared library. */
2667
2668 bfd_boolean
2669 tilegx_elf_omit_section_dynsym (bfd *output_bfd,
2670 struct bfd_link_info *info,
2671 asection *p)
2672 {
2673 /* We keep the .got section symbol so that explicit relocations
2674 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2675 can be turned into relocations against the .got symbol. */
2676 if (strcmp (p->name, ".got") == 0)
2677 return FALSE;
2678
2679 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2680 }
2681
2682 bfd_boolean
2683 tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2684 struct bfd_link_info *info)
2685 {
2686 struct tilegx_elf_link_hash_table *htab;
2687 bfd *dynobj;
2688 asection *s;
2689 bfd *ibfd;
2690
2691 htab = tilegx_elf_hash_table (info);
2692 BFD_ASSERT (htab != NULL);
2693 dynobj = htab->elf.dynobj;
2694 BFD_ASSERT (dynobj != NULL);
2695
2696 if (elf_hash_table (info)->dynamic_sections_created)
2697 {
2698 /* Set the contents of the .interp section to the interpreter. */
2699 if (info->executable)
2700 {
2701 s = bfd_get_linker_section (dynobj, ".interp");
2702 BFD_ASSERT (s != NULL);
2703 s->size = strlen (htab->dynamic_interpreter) + 1;
2704 s->contents = (unsigned char *) htab->dynamic_interpreter;
2705 }
2706 }
2707
2708 /* Set up .got offsets for local syms, and space for local dynamic
2709 relocs. */
2710 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2711 {
2712 bfd_signed_vma *local_got;
2713 bfd_signed_vma *end_local_got;
2714 char *local_tls_type;
2715 bfd_size_type locsymcount;
2716 Elf_Internal_Shdr *symtab_hdr;
2717 asection *srel;
2718
2719 if (! is_tilegx_elf (ibfd))
2720 continue;
2721
2722 for (s = ibfd->sections; s != NULL; s = s->next)
2723 {
2724 struct tilegx_elf_dyn_relocs *p;
2725
2726 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2727 {
2728 if (!bfd_is_abs_section (p->sec)
2729 && bfd_is_abs_section (p->sec->output_section))
2730 {
2731 /* Input section has been discarded, either because
2732 it is a copy of a linkonce section or due to
2733 linker script /DISCARD/, so we'll be discarding
2734 the relocs too. */
2735 }
2736 else if (p->count != 0)
2737 {
2738 srel = elf_section_data (p->sec)->sreloc;
2739 srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab);
2740 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2741 info->flags |= DF_TEXTREL;
2742 }
2743 }
2744 }
2745
2746 local_got = elf_local_got_refcounts (ibfd);
2747 if (!local_got)
2748 continue;
2749
2750 symtab_hdr = &elf_symtab_hdr (ibfd);
2751 locsymcount = symtab_hdr->sh_info;
2752 end_local_got = local_got + locsymcount;
2753 local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd);
2754 s = htab->elf.sgot;
2755 srel = htab->elf.srelgot;
2756 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2757 {
2758 if (*local_got > 0)
2759 {
2760 *local_got = s->size;
2761 s->size += TILEGX_ELF_WORD_BYTES (htab);
2762 if (*local_tls_type == GOT_TLS_GD)
2763 s->size += TILEGX_ELF_WORD_BYTES (htab);
2764 if (info->shared
2765 || *local_tls_type == GOT_TLS_GD
2766 || *local_tls_type == GOT_TLS_IE)
2767 srel->size += TILEGX_ELF_RELA_BYTES (htab);
2768 }
2769 else
2770 *local_got = (bfd_vma) -1;
2771 }
2772 }
2773
2774 /* Allocate global sym .plt and .got entries, and space for global
2775 sym dynamic relocs. */
2776 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2777
2778 if (elf_hash_table (info)->dynamic_sections_created)
2779 {
2780 /* If the .got section is more than 0x8000 bytes, we add
2781 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2782 bit relocations have a greater chance of working. */
2783 if (htab->elf.sgot->size >= 0x8000
2784 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2785 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2786 }
2787
2788 if (htab->elf.sgotplt)
2789 {
2790 struct elf_link_hash_entry *got;
2791 got = elf_link_hash_lookup (elf_hash_table (info),
2792 "_GLOBAL_OFFSET_TABLE_",
2793 FALSE, FALSE, FALSE);
2794
2795 /* Don't allocate .got.plt section if there are no GOT nor PLT
2796 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2797 if ((got == NULL
2798 || !got->ref_regular_nonweak)
2799 && (htab->elf.sgotplt->size
2800 == (unsigned)GOTPLT_HEADER_SIZE (htab))
2801 && (htab->elf.splt == NULL
2802 || htab->elf.splt->size == 0)
2803 && (htab->elf.sgot == NULL
2804 || (htab->elf.sgot->size
2805 == get_elf_backend_data (output_bfd)->got_header_size)))
2806 htab->elf.sgotplt->size = 0;
2807 }
2808
2809 /* The check_relocs and adjust_dynamic_symbol entry points have
2810 determined the sizes of the various dynamic sections. Allocate
2811 memory for them. */
2812 for (s = dynobj->sections; s != NULL; s = s->next)
2813 {
2814 if ((s->flags & SEC_LINKER_CREATED) == 0)
2815 continue;
2816
2817 if (s == htab->elf.splt
2818 || s == htab->elf.sgot
2819 || s == htab->elf.sgotplt
2820 || s == htab->sdynbss)
2821 {
2822 /* Strip this section if we don't need it; see the
2823 comment below. */
2824 }
2825 else if (strncmp (s->name, ".rela", 5) == 0)
2826 {
2827 if (s->size != 0)
2828 {
2829 /* We use the reloc_count field as a counter if we need
2830 to copy relocs into the output file. */
2831 s->reloc_count = 0;
2832 }
2833 }
2834 else
2835 {
2836 /* It's not one of our sections. */
2837 continue;
2838 }
2839
2840 if (s->size == 0)
2841 {
2842 /* If we don't need this section, strip it from the
2843 output file. This is mostly to handle .rela.bss and
2844 .rela.plt. We must create both sections in
2845 create_dynamic_sections, because they must be created
2846 before the linker maps input sections to output
2847 sections. The linker does that before
2848 adjust_dynamic_symbol is called, and it is that
2849 function which decides whether anything needs to go
2850 into these sections. */
2851 s->flags |= SEC_EXCLUDE;
2852 continue;
2853 }
2854
2855 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2856 continue;
2857
2858 /* Allocate memory for the section contents. Zero the memory
2859 for the benefit of .rela.plt, which has 4 unused entries
2860 at the beginning, and we don't want garbage. */
2861 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2862 if (s->contents == NULL)
2863 return FALSE;
2864 }
2865
2866 if (elf_hash_table (info)->dynamic_sections_created)
2867 {
2868 /* Add some entries to the .dynamic section. We fill in the
2869 values later, in tilegx_elf_finish_dynamic_sections, but we
2870 must add the entries now so that we get the correct size for
2871 the .dynamic section. The DT_DEBUG entry is filled in by the
2872 dynamic linker and used by the debugger. */
2873 #define add_dynamic_entry(TAG, VAL) \
2874 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2875
2876 if (info->executable)
2877 {
2878 if (!add_dynamic_entry (DT_DEBUG, 0))
2879 return FALSE;
2880 }
2881
2882 if (htab->elf.srelplt->size != 0)
2883 {
2884 if (!add_dynamic_entry (DT_PLTGOT, 0)
2885 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2886 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2887 || !add_dynamic_entry (DT_JMPREL, 0))
2888 return FALSE;
2889 }
2890
2891 if (!add_dynamic_entry (DT_RELA, 0)
2892 || !add_dynamic_entry (DT_RELASZ, 0)
2893 || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab)))
2894 return FALSE;
2895
2896 /* If any dynamic relocs apply to a read-only section,
2897 then we need a DT_TEXTREL entry. */
2898 if ((info->flags & DF_TEXTREL) == 0)
2899 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2900
2901 if (info->flags & DF_TEXTREL)
2902 {
2903 if (!add_dynamic_entry (DT_TEXTREL, 0))
2904 return FALSE;
2905 }
2906 }
2907 #undef add_dynamic_entry
2908
2909 return TRUE;
2910 }
2911 \f
2912 /* Return the base VMA address which should be subtracted from real addresses
2913 when resolving @dtpoff relocation.
2914 This is PT_TLS segment p_vaddr. */
2915
2916 static bfd_vma
2917 dtpoff_base (struct bfd_link_info *info)
2918 {
2919 /* If tls_sec is NULL, we should have signalled an error already. */
2920 if (elf_hash_table (info)->tls_sec == NULL)
2921 return 0;
2922 return elf_hash_table (info)->tls_sec->vma;
2923 }
2924
2925 /* Return the relocation value for @tpoff relocation. */
2926
2927 static bfd_vma
2928 tpoff (struct bfd_link_info *info, bfd_vma address)
2929 {
2930 struct elf_link_hash_table *htab = elf_hash_table (info);
2931
2932 /* If tls_sec is NULL, we should have signalled an error already. */
2933 if (htab->tls_sec == NULL)
2934 return 0;
2935
2936 return (address - htab->tls_sec->vma);
2937 }
2938
2939 /* Copy SIZE bits from FROM to TO at address ADDR. */
2940
2941 static void
2942 tilegx_copy_bits (bfd_byte *addr, int from, int to, int size)
2943 {
2944 int i;
2945 for (i = 0; i < size; i++)
2946 {
2947 int from_byte = (from + i) / 8;
2948 int from_bit = (from + i) % 8;
2949 int to_byte = (to + i) / 8;
2950 int to_bit = (to + i) % 8;
2951 bfd_byte to_mask = 1 << to_bit;
2952 addr[to_byte] = (addr[to_byte] & ~to_mask)
2953 | ((addr[from_byte] >> from_bit << to_bit) & to_mask);
2954 }
2955 }
2956
2957 /* Replace the MASK bits in ADDR with those in INSN, for the next
2958 TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */
2959
2960 static void
2961 tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2962 const bfd_byte *insn)
2963 {
2964 int i;
2965 for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++)
2966 {
2967 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2968 }
2969 }
2970
2971 /* Mask to extract the bits corresponding to an instruction in a
2972 specific pipe of a bundle. */
2973 static const bfd_byte insn_mask_X1[] = {
2974 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f
2975 };
2976
2977 /* Mask to extract the bits corresponding to an instruction in a
2978 specific pipe of a bundle, minus the destination operand and the
2979 first source operand. */
2980 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2981 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2982 };
2983
2984 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2985 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f
2986 };
2987
2988 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2989 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2990 };
2991 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2992 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c
2993 };
2994
2995 /* Mask to extract the bits corresponding to an instruction in a
2996 specific pipe of a bundle, minus the register operands. */
2997 static const bfd_byte insn_mask_X0_no_operand[] = {
2998 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00
2999 };
3000
3001 static const bfd_byte insn_mask_X1_no_operand[] = {
3002 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f
3003 };
3004
3005 static const bfd_byte insn_mask_Y0_no_operand[] = {
3006 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00
3007 };
3008
3009 static const bfd_byte insn_mask_Y1_no_operand[] = {
3010 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c
3011 };
3012
3013 /* Various instructions synthesized to support tls references. */
3014
3015 /* ld r0, r0 in the X1 pipe, used for tls ie. */
3016 static const bfd_byte insn_tls_ie_ld_X1[] = {
3017 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28
3018 };
3019
3020 /* ld4s r0, r0 in the X1 pipe, used for tls ie. */
3021 static const bfd_byte insn_tls_ie_ld4s_X1[] = {
3022 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28
3023 };
3024
3025 /* add r0, r0, tp in various pipes, used for tls ie. */
3026 static const bfd_byte insn_tls_ie_add_X0X1[] = {
3027 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28
3028 };
3029 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
3030 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a
3031 };
3032
3033 /* addx r0, r0, tp in various pipes, used for tls ie. */
3034 static const bfd_byte insn_tls_ie_addx_X0X1[] = {
3035 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28
3036 };
3037 static const bfd_byte insn_tls_ie_addx_Y0Y1[] = {
3038 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a
3039 };
3040
3041 /* move r0, r0 in various pipes, used for tls gd. */
3042 static const bfd_byte insn_tls_gd_add_X0X1[] = {
3043 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28
3044 };
3045 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
3046 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae
3047 };
3048
3049 static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1;
3050 static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1;
3051
3052 static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1;
3053 static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1;
3054
3055 static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1;
3056 static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1;
3057
3058 /* Relocate an TILEGX ELF section.
3059
3060 The RELOCATE_SECTION function is called by the new ELF backend linker
3061 to handle the relocations for a section.
3062
3063 The relocs are always passed as Rela structures.
3064
3065 This function is responsible for adjusting the section contents as
3066 necessary, and (if generating a relocatable output file) adjusting
3067 the reloc addend as necessary.
3068
3069 This function does not have to worry about setting the reloc
3070 address or the reloc symbol index.
3071
3072 LOCAL_SYMS is a pointer to the swapped in local symbols.
3073
3074 LOCAL_SECTIONS is an array giving the section in the input file
3075 corresponding to the st_shndx field of each local symbol.
3076
3077 The global hash table entry for the global symbols can be found
3078 via elf_sym_hashes (input_bfd).
3079
3080 When generating relocatable output, this function must handle
3081 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
3082 going to be the section symbol corresponding to the output
3083 section, which means that the addend must be adjusted
3084 accordingly. */
3085
3086 bfd_boolean
3087 tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
3088 bfd *input_bfd, asection *input_section,
3089 bfd_byte *contents, Elf_Internal_Rela *relocs,
3090 Elf_Internal_Sym *local_syms,
3091 asection **local_sections)
3092 {
3093 struct tilegx_elf_link_hash_table *htab;
3094 Elf_Internal_Shdr *symtab_hdr;
3095 struct elf_link_hash_entry **sym_hashes;
3096 bfd_vma *local_got_offsets;
3097 bfd_vma got_base;
3098 asection *sreloc;
3099 Elf_Internal_Rela *rel;
3100 Elf_Internal_Rela *relend;
3101 int num_relocs;
3102
3103 htab = tilegx_elf_hash_table (info);
3104 BFD_ASSERT (htab != NULL);
3105 symtab_hdr = &elf_symtab_hdr (input_bfd);
3106 sym_hashes = elf_sym_hashes (input_bfd);
3107 local_got_offsets = elf_local_got_offsets (input_bfd);
3108
3109 if (elf_hash_table (info)->hgot == NULL)
3110 got_base = 0;
3111 else
3112 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3113
3114 sreloc = elf_section_data (input_section)->sreloc;
3115
3116 rel = relocs;
3117 num_relocs = input_section->reloc_count;
3118 relend = relocs + num_relocs;
3119 for (; rel < relend; rel++)
3120 {
3121 int r_type, tls_type;
3122 bfd_boolean is_tls_iele, is_tls_le;
3123 reloc_howto_type *howto;
3124 unsigned long r_symndx;
3125 struct elf_link_hash_entry *h;
3126 Elf_Internal_Sym *sym;
3127 tilegx_create_func create_func;
3128 asection *sec;
3129 bfd_vma relocation;
3130 bfd_reloc_status_type r;
3131 const char *name;
3132 bfd_vma off;
3133 bfd_boolean is_plt = FALSE;
3134
3135 bfd_boolean unresolved_reloc;
3136
3137 r_type = TILEGX_ELF_R_TYPE (rel->r_info);
3138 if (r_type == R_TILEGX_GNU_VTINHERIT
3139 || r_type == R_TILEGX_GNU_VTENTRY)
3140 continue;
3141
3142 if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table))
3143 {
3144 /* Not clear if we need to check here, but just be paranoid. */
3145 (*_bfd_error_handler)
3146 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
3147 input_bfd, r_type, input_section);
3148 bfd_set_error (bfd_error_bad_value);
3149 return FALSE;
3150 }
3151
3152 howto = tilegx_elf_howto_table + r_type;
3153
3154 /* This is a final link. */
3155 r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info);
3156 h = NULL;
3157 sym = NULL;
3158 sec = NULL;
3159 unresolved_reloc = FALSE;
3160 if (r_symndx < symtab_hdr->sh_info)
3161 {
3162 sym = local_syms + r_symndx;
3163 sec = local_sections[r_symndx];
3164 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3165 }
3166 else
3167 {
3168 bfd_boolean warned;
3169
3170 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3171 r_symndx, symtab_hdr, sym_hashes,
3172 h, sec, relocation,
3173 unresolved_reloc, warned);
3174 if (warned)
3175 {
3176 /* To avoid generating warning messages about truncated
3177 relocations, set the relocation's address to be the same as
3178 the start of this section. */
3179 if (input_section->output_section != NULL)
3180 relocation = input_section->output_section->vma;
3181 else
3182 relocation = 0;
3183 }
3184 }
3185
3186 if (sec != NULL && discarded_section (sec))
3187 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3188 rel, 1, relend, howto, 0, contents);
3189
3190 if (info->relocatable)
3191 continue;
3192
3193 if (h != NULL)
3194 name = h->root.root.string;
3195 else
3196 {
3197 name = (bfd_elf_string_from_elf_section
3198 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3199 if (name == NULL || *name == '\0')
3200 name = bfd_section_name (input_bfd, sec);
3201 }
3202
3203 switch (r_type)
3204 {
3205 case R_TILEGX_TLS_GD_CALL:
3206 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3207 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3208 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3209 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3210 case R_TILEGX_IMM8_X0_TLS_ADD:
3211 case R_TILEGX_IMM8_Y0_TLS_ADD:
3212 case R_TILEGX_IMM8_X1_TLS_ADD:
3213 case R_TILEGX_IMM8_Y1_TLS_ADD:
3214 tls_type = GOT_UNKNOWN;
3215 if (h == NULL && local_got_offsets)
3216 tls_type =
3217 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3218 else if (h != NULL)
3219 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3220
3221 is_tls_iele = (! info->shared || tls_type == GOT_TLS_IE);
3222 is_tls_le = is_tls_iele && (!input_section->sec_flg0
3223 && !info->shared
3224 && (h == NULL || h->dynindx == -1));
3225
3226 if (r_type == R_TILEGX_TLS_GD_CALL)
3227 {
3228 if (is_tls_le)
3229 {
3230 /* GD -> LE */
3231 tilegx_replace_insn (contents + rel->r_offset,
3232 insn_mask_X1, insn_move_X0X1);
3233 continue;
3234 }
3235 else if (is_tls_iele)
3236 {
3237 /* GD -> IE */
3238 if (ABI_64_P (output_bfd))
3239 tilegx_replace_insn (contents + rel->r_offset,
3240 insn_mask_X1, insn_tls_ie_ld_X1);
3241 else
3242 tilegx_replace_insn (contents + rel->r_offset,
3243 insn_mask_X1, insn_tls_ie_ld4s_X1);
3244 continue;
3245 }
3246
3247 /* GD -> GD */
3248 h = (struct elf_link_hash_entry *)
3249 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3250 FALSE, TRUE);
3251 BFD_ASSERT (h != NULL);
3252 r_type = R_TILEGX_JUMPOFF_X1_PLT;
3253 howto = tilegx_elf_howto_table + r_type;
3254 }
3255 else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3256 || r_type == R_TILEGX_IMM8_X1_TLS_ADD
3257 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD
3258 || r_type == R_TILEGX_IMM8_Y1_TLS_ADD)
3259 {
3260 bfd_boolean is_pipe0 =
3261 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3262 || r_type == R_TILEGX_IMM8_Y0_TLS_ADD);
3263 bfd_boolean is_X0X1 =
3264 (r_type == R_TILEGX_IMM8_X0_TLS_ADD
3265 || r_type == R_TILEGX_IMM8_X1_TLS_ADD);
3266 int dest_begin = is_pipe0 ? 0 : 31;
3267 int src_begin;
3268 const bfd_byte *insn;
3269 const bfd_byte *mask = NULL;
3270
3271 if (is_tls_le)
3272 {
3273 /* 1. copy dest operand into the first source operand.
3274 2. change the opcode to "move". */
3275 src_begin = is_pipe0 ? 6 : 37;
3276 insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1;
3277
3278 switch (r_type)
3279 {
3280 case R_TILEGX_IMM8_X0_TLS_ADD:
3281 mask = insn_mask_X0_no_dest_no_srca;
3282 break;
3283 case R_TILEGX_IMM8_X1_TLS_ADD:
3284 mask = insn_mask_X1_no_dest_no_srca;
3285 break;
3286 case R_TILEGX_IMM8_Y0_TLS_ADD:
3287 mask = insn_mask_Y0_no_dest_no_srca;
3288 break;
3289 case R_TILEGX_IMM8_Y1_TLS_ADD:
3290 mask = insn_mask_Y1_no_dest_no_srca;
3291 break;
3292 }
3293 }
3294 else
3295 {
3296 /* 1. copy dest operand into the second source operand.
3297 2. change the opcode to "add". */
3298 src_begin = is_pipe0 ? 12 : 43;
3299 if (ABI_64_P (output_bfd))
3300 insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1;
3301 else
3302 insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1;
3303
3304 switch (r_type)
3305 {
3306 case R_TILEGX_IMM8_X0_TLS_ADD:
3307 mask = insn_mask_X0_no_operand;
3308 break;
3309 case R_TILEGX_IMM8_X1_TLS_ADD:
3310 mask = insn_mask_X1_no_operand;
3311 break;
3312 case R_TILEGX_IMM8_Y0_TLS_ADD:
3313 mask = insn_mask_Y0_no_operand;
3314 break;
3315 case R_TILEGX_IMM8_Y1_TLS_ADD:
3316 mask = insn_mask_Y1_no_operand;
3317 break;
3318 }
3319 }
3320
3321 tilegx_copy_bits (contents + rel->r_offset, dest_begin,
3322 src_begin, 6);
3323 tilegx_replace_insn (contents + rel->r_offset, mask, insn);
3324
3325 continue;
3326 }
3327 else
3328 {
3329 const bfd_byte *mask = NULL;
3330 const bfd_byte *add_insn = NULL;
3331 bfd_boolean is_64bit = ABI_64_P (output_bfd);
3332
3333 switch (r_type)
3334 {
3335 case R_TILEGX_IMM8_X0_TLS_GD_ADD:
3336 add_insn = is_tls_iele
3337 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3338 : insn_tls_gd_add_X0X1;
3339 mask = insn_mask_X0_no_dest_no_srca;
3340 break;
3341 case R_TILEGX_IMM8_X1_TLS_GD_ADD:
3342 add_insn = is_tls_iele
3343 ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1)
3344 : insn_tls_gd_add_X0X1;
3345 mask = insn_mask_X1_no_dest_no_srca;
3346 break;
3347 case R_TILEGX_IMM8_Y0_TLS_GD_ADD:
3348 add_insn = is_tls_iele
3349 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3350 : insn_tls_gd_add_Y0Y1;
3351 mask = insn_mask_Y0_no_dest_no_srca;
3352 break;
3353 case R_TILEGX_IMM8_Y1_TLS_GD_ADD:
3354 add_insn = is_tls_iele
3355 ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1)
3356 : insn_tls_gd_add_Y0Y1;
3357 mask = insn_mask_Y1_no_dest_no_srca;
3358 break;
3359 }
3360
3361 tilegx_replace_insn (contents + rel->r_offset, mask, add_insn);
3362
3363 continue;
3364 }
3365 break;
3366 case R_TILEGX_TLS_IE_LOAD:
3367 if (!input_section->sec_flg0
3368 && !info->shared
3369 && (h == NULL || h->dynindx == -1))
3370 {
3371 /* IE -> LE */
3372 tilegx_replace_insn (contents + rel->r_offset,
3373 insn_mask_X1_no_dest_no_srca,
3374 insn_move_X0X1);
3375 }
3376 else
3377 {
3378 /* IE -> IE */
3379 if (ABI_64_P (output_bfd))
3380 tilegx_replace_insn (contents + rel->r_offset,
3381 insn_mask_X1_no_dest_no_srca,
3382 insn_tls_ie_ld_X1);
3383 else
3384 tilegx_replace_insn (contents + rel->r_offset,
3385 insn_mask_X1_no_dest_no_srca,
3386 insn_tls_ie_ld4s_X1);
3387 }
3388 continue;
3389 break;
3390 default:
3391 break;
3392 }
3393
3394 switch (r_type)
3395 {
3396 case R_TILEGX_IMM16_X0_HW0_GOT:
3397 case R_TILEGX_IMM16_X1_HW0_GOT:
3398 case R_TILEGX_IMM16_X0_HW0_LAST_GOT:
3399 case R_TILEGX_IMM16_X1_HW0_LAST_GOT:
3400 case R_TILEGX_IMM16_X0_HW1_LAST_GOT:
3401 case R_TILEGX_IMM16_X1_HW1_LAST_GOT:
3402 /* Relocation is to the entry for this symbol in the global
3403 offset table. */
3404 if (htab->elf.sgot == NULL)
3405 abort ();
3406
3407 if (h != NULL)
3408 {
3409 bfd_boolean dyn;
3410
3411 off = h->got.offset;
3412 BFD_ASSERT (off != (bfd_vma) -1);
3413 dyn = elf_hash_table (info)->dynamic_sections_created;
3414
3415 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3416 || (info->shared
3417 && SYMBOL_REFERENCES_LOCAL (info, h)))
3418 {
3419 /* This is actually a static link, or it is a
3420 -Bsymbolic link and the symbol is defined
3421 locally, or the symbol was forced to be local
3422 because of a version file. We must initialize
3423 this entry in the global offset table. Since the
3424 offset must always be a multiple
3425 of 8 for 64-bit, we use the least significant bit
3426 to record whether we have initialized it already.
3427
3428 When doing a dynamic link, we create a .rela.got
3429 relocation entry to initialize the value. This
3430 is done in the finish_dynamic_symbol routine. */
3431 if ((off & 1) != 0)
3432 off &= ~1;
3433 else
3434 {
3435 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3436 htab->elf.sgot->contents + off);
3437 h->got.offset |= 1;
3438 }
3439 }
3440 else
3441 unresolved_reloc = FALSE;
3442 }
3443 else
3444 {
3445 BFD_ASSERT (local_got_offsets != NULL
3446 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3447
3448 off = local_got_offsets[r_symndx];
3449
3450 /* The offset must always be a multiple of 8 on 64-bit.
3451 We use the least significant bit to record
3452 whether we have already processed this entry. */
3453 if ((off & 1) != 0)
3454 off &= ~1;
3455 else
3456 {
3457 if (info->shared)
3458 {
3459 asection *s;
3460 Elf_Internal_Rela outrel;
3461
3462 /* We need to generate a R_TILEGX_RELATIVE reloc
3463 for the dynamic linker. */
3464 s = htab->elf.srelgot;
3465 BFD_ASSERT (s != NULL);
3466
3467 outrel.r_offset = (htab->elf.sgot->output_section->vma
3468 + htab->elf.sgot->output_offset
3469 + off);
3470 outrel.r_info =
3471 TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
3472 outrel.r_addend = relocation;
3473 relocation = 0;
3474 tilegx_elf_append_rela (output_bfd, s, &outrel);
3475 }
3476
3477 TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation,
3478 htab->elf.sgot->contents + off);
3479 local_got_offsets[r_symndx] |= 1;
3480 }
3481 }
3482 relocation = off - got_base;
3483 break;
3484
3485 case R_TILEGX_JUMPOFF_X1_PLT:
3486 case R_TILEGX_IMM16_X0_HW0_PLT_PCREL:
3487 case R_TILEGX_IMM16_X1_HW0_PLT_PCREL:
3488 case R_TILEGX_IMM16_X0_HW1_PLT_PCREL:
3489 case R_TILEGX_IMM16_X1_HW1_PLT_PCREL:
3490 case R_TILEGX_IMM16_X0_HW2_PLT_PCREL:
3491 case R_TILEGX_IMM16_X1_HW2_PLT_PCREL:
3492 case R_TILEGX_IMM16_X0_HW3_PLT_PCREL:
3493 case R_TILEGX_IMM16_X1_HW3_PLT_PCREL:
3494 case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL:
3495 case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL:
3496 case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL:
3497 case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL:
3498 case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL:
3499 case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL:
3500 /* Relocation is to the entry for this symbol in the
3501 procedure linkage table. */
3502 BFD_ASSERT (h != NULL);
3503
3504 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3505 {
3506 /* We didn't make a PLT entry for this symbol. This
3507 happens when statically linking PIC code, or when
3508 using -Bsymbolic. */
3509 break;
3510 }
3511
3512 relocation = (htab->elf.splt->output_section->vma
3513 + htab->elf.splt->output_offset
3514 + h->plt.offset);
3515 unresolved_reloc = FALSE;
3516 break;
3517
3518 case R_TILEGX_64_PCREL:
3519 case R_TILEGX_32_PCREL:
3520 case R_TILEGX_16_PCREL:
3521 case R_TILEGX_8_PCREL:
3522 case R_TILEGX_IMM16_X0_HW0_PCREL:
3523 case R_TILEGX_IMM16_X1_HW0_PCREL:
3524 case R_TILEGX_IMM16_X0_HW1_PCREL:
3525 case R_TILEGX_IMM16_X1_HW1_PCREL:
3526 case R_TILEGX_IMM16_X0_HW2_PCREL:
3527 case R_TILEGX_IMM16_X1_HW2_PCREL:
3528 case R_TILEGX_IMM16_X0_HW3_PCREL:
3529 case R_TILEGX_IMM16_X1_HW3_PCREL:
3530 case R_TILEGX_IMM16_X0_HW0_LAST_PCREL:
3531 case R_TILEGX_IMM16_X1_HW0_LAST_PCREL:
3532 case R_TILEGX_IMM16_X0_HW1_LAST_PCREL:
3533 case R_TILEGX_IMM16_X1_HW1_LAST_PCREL:
3534 case R_TILEGX_IMM16_X0_HW2_LAST_PCREL:
3535 case R_TILEGX_IMM16_X1_HW2_LAST_PCREL:
3536 if (h != NULL
3537 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3538 break;
3539 /* Fall through. */
3540 case R_TILEGX_64:
3541 case R_TILEGX_32:
3542 case R_TILEGX_16:
3543 case R_TILEGX_8:
3544 case R_TILEGX_HW0:
3545 case R_TILEGX_HW1:
3546 case R_TILEGX_HW2:
3547 case R_TILEGX_HW3:
3548 case R_TILEGX_HW0_LAST:
3549 case R_TILEGX_HW1_LAST:
3550 case R_TILEGX_HW2_LAST:
3551 case R_TILEGX_COPY:
3552 case R_TILEGX_GLOB_DAT:
3553 case R_TILEGX_JMP_SLOT:
3554 case R_TILEGX_RELATIVE:
3555 case R_TILEGX_BROFF_X1:
3556 case R_TILEGX_JUMPOFF_X1:
3557 case R_TILEGX_IMM8_X0:
3558 case R_TILEGX_IMM8_Y0:
3559 case R_TILEGX_IMM8_X1:
3560 case R_TILEGX_IMM8_Y1:
3561 case R_TILEGX_DEST_IMM8_X1:
3562 case R_TILEGX_MT_IMM14_X1:
3563 case R_TILEGX_MF_IMM14_X1:
3564 case R_TILEGX_MMSTART_X0:
3565 case R_TILEGX_MMEND_X0:
3566 case R_TILEGX_SHAMT_X0:
3567 case R_TILEGX_SHAMT_X1:
3568 case R_TILEGX_SHAMT_Y0:
3569 case R_TILEGX_SHAMT_Y1:
3570 case R_TILEGX_IMM16_X0_HW0:
3571 case R_TILEGX_IMM16_X1_HW0:
3572 case R_TILEGX_IMM16_X0_HW1:
3573 case R_TILEGX_IMM16_X1_HW1:
3574 case R_TILEGX_IMM16_X0_HW2:
3575 case R_TILEGX_IMM16_X1_HW2:
3576 case R_TILEGX_IMM16_X0_HW3:
3577 case R_TILEGX_IMM16_X1_HW3:
3578 case R_TILEGX_IMM16_X0_HW0_LAST:
3579 case R_TILEGX_IMM16_X1_HW0_LAST:
3580 case R_TILEGX_IMM16_X0_HW1_LAST:
3581 case R_TILEGX_IMM16_X1_HW1_LAST:
3582 case R_TILEGX_IMM16_X0_HW2_LAST:
3583 case R_TILEGX_IMM16_X1_HW2_LAST:
3584 if ((input_section->flags & SEC_ALLOC) == 0)
3585 break;
3586
3587 if ((info->shared
3588 && (h == NULL
3589 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3590 || h->root.type != bfd_link_hash_undefweak)
3591 && (! howto->pc_relative
3592 || !SYMBOL_CALLS_LOCAL (info, h)))
3593 || (!info->shared
3594 && h != NULL
3595 && h->dynindx != -1
3596 && !h->non_got_ref
3597 && ((h->def_dynamic
3598 && !h->def_regular)
3599 || h->root.type == bfd_link_hash_undefweak
3600 || h->root.type == bfd_link_hash_undefined)))
3601 {
3602 Elf_Internal_Rela outrel;
3603 bfd_boolean skip, relocate = FALSE;
3604
3605 /* When generating a shared object, these relocations
3606 are copied into the output file to be resolved at run
3607 time. */
3608
3609 BFD_ASSERT (sreloc != NULL);
3610
3611 skip = FALSE;
3612
3613 outrel.r_offset =
3614 _bfd_elf_section_offset (output_bfd, info, input_section,
3615 rel->r_offset);
3616 if (outrel.r_offset == (bfd_vma) -1)
3617 skip = TRUE;
3618 else if (outrel.r_offset == (bfd_vma) -2)
3619 skip = TRUE, relocate = TRUE;
3620 outrel.r_offset += (input_section->output_section->vma
3621 + input_section->output_offset);
3622
3623 switch (r_type)
3624 {
3625 case R_TILEGX_64_PCREL:
3626 case R_TILEGX_32_PCREL:
3627 case R_TILEGX_16_PCREL:
3628 case R_TILEGX_8_PCREL:
3629 /* If the symbol is not dynamic, we should not keep
3630 a dynamic relocation. But an .rela.* slot has been
3631 allocated for it, output R_TILEGX_NONE.
3632 FIXME: Add code tracking needed dynamic relocs as
3633 e.g. i386 has. */
3634 if (h->dynindx == -1)
3635 skip = TRUE, relocate = TRUE;
3636 break;
3637 }
3638
3639 if (skip)
3640 memset (&outrel, 0, sizeof outrel);
3641 /* h->dynindx may be -1 if the symbol was marked to
3642 become local. */
3643 else if (h != NULL &&
3644 h->dynindx != -1
3645 && (! is_plt
3646 || !info->shared
3647 || !SYMBOLIC_BIND (info, h)
3648 || !h->def_regular))
3649 {
3650 BFD_ASSERT (h->dynindx != -1);
3651 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3652 outrel.r_addend = rel->r_addend;
3653 }
3654 else
3655 {
3656 if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64)
3657 {
3658 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0,
3659 R_TILEGX_RELATIVE);
3660 outrel.r_addend = relocation + rel->r_addend;
3661 }
3662 else
3663 {
3664 long indx;
3665
3666 outrel.r_addend = relocation + rel->r_addend;
3667
3668 if (is_plt)
3669 sec = htab->elf.splt;
3670
3671 if (bfd_is_abs_section (sec))
3672 indx = 0;
3673 else if (sec == NULL || sec->owner == NULL)
3674 {
3675 bfd_set_error (bfd_error_bad_value);
3676 return FALSE;
3677 }
3678 else
3679 {
3680 asection *osec;
3681
3682 /* We are turning this relocation into one
3683 against a section symbol. It would be
3684 proper to subtract the symbol's value,
3685 osec->vma, from the emitted reloc addend,
3686 but ld.so expects buggy relocs. */
3687 osec = sec->output_section;
3688 indx = elf_section_data (osec)->dynindx;
3689
3690 if (indx == 0)
3691 {
3692 osec = htab->elf.text_index_section;
3693 indx = elf_section_data (osec)->dynindx;
3694 }
3695
3696 /* FIXME: we really should be able to link non-pic
3697 shared libraries. */
3698 if (indx == 0)
3699 {
3700 BFD_FAIL ();
3701 (*_bfd_error_handler)
3702 (_("%B: probably compiled without -fPIC?"),
3703 input_bfd);
3704 bfd_set_error (bfd_error_bad_value);
3705 return FALSE;
3706 }
3707 }
3708
3709 outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx,
3710 r_type);
3711 }
3712 }
3713
3714 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3715
3716 /* This reloc will be computed at runtime, so there's no
3717 need to do anything now. */
3718 if (! relocate)
3719 continue;
3720 }
3721 break;
3722
3723 case R_TILEGX_IMM16_X0_HW0_TLS_LE:
3724 case R_TILEGX_IMM16_X1_HW0_TLS_LE:
3725 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE:
3726 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE:
3727 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE:
3728 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE:
3729 if (info->shared)
3730 {
3731 Elf_Internal_Rela outrel;
3732 bfd_boolean skip;
3733
3734 BFD_ASSERT (sreloc != NULL);
3735 skip = FALSE;
3736 outrel.r_offset =
3737 _bfd_elf_section_offset (output_bfd, info, input_section,
3738 rel->r_offset);
3739 if (outrel.r_offset == (bfd_vma) -1)
3740 skip = TRUE;
3741 else if (outrel.r_offset == (bfd_vma) -2)
3742 skip = TRUE;
3743 outrel.r_offset += (input_section->output_section->vma
3744 + input_section->output_offset);
3745 if (skip)
3746 memset (&outrel, 0, sizeof outrel);
3747 else
3748 {
3749 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type);
3750 outrel.r_addend = relocation - dtpoff_base (info)
3751 + rel->r_addend;
3752 }
3753
3754 tilegx_elf_append_rela (output_bfd, sreloc, &outrel);
3755 continue;
3756 }
3757 relocation = tpoff (info, relocation);
3758 break;
3759
3760 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3761 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3762 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3763 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3764 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3765 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3766 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3767 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3768 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3769 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3770 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3771 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3772 r_type = tilegx_elf_tls_transition (info, r_type, h == NULL,
3773 input_section->sec_flg0);
3774 tls_type = GOT_UNKNOWN;
3775 if (h == NULL && local_got_offsets)
3776 tls_type =
3777 _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx];
3778 else if (h != NULL)
3779 {
3780 tls_type = tilegx_elf_hash_entry(h)->tls_type;
3781 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3782 r_type = (!input_section->sec_flg0
3783 ? tilegx_tls_translate_to_le (r_type)
3784 : tilegx_tls_translate_to_ie (r_type));
3785 }
3786
3787 if (tls_type == GOT_TLS_IE)
3788 r_type = tilegx_tls_translate_to_ie (r_type);
3789
3790 if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE
3791 || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE
3792 || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE
3793 || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE
3794 || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE
3795 || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE)
3796 {
3797 relocation = tpoff (info, relocation);
3798 break;
3799 }
3800
3801 if (h != NULL)
3802 {
3803 off = h->got.offset;
3804 h->got.offset |= 1;
3805 }
3806 else
3807 {
3808 BFD_ASSERT (local_got_offsets != NULL);
3809 off = local_got_offsets[r_symndx];
3810 local_got_offsets[r_symndx] |= 1;
3811 }
3812
3813 if (htab->elf.sgot == NULL)
3814 abort ();
3815
3816 if ((off & 1) != 0)
3817 off &= ~1;
3818 else
3819 {
3820 Elf_Internal_Rela outrel;
3821 int indx = 0;
3822 bfd_boolean need_relocs = FALSE;
3823
3824 if (htab->elf.srelgot == NULL)
3825 abort ();
3826
3827 if (h != NULL)
3828 {
3829 bfd_boolean dyn;
3830 dyn = htab->elf.dynamic_sections_created;
3831
3832 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3833 && (!info->shared
3834 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3835 {
3836 indx = h->dynindx;
3837 }
3838 }
3839
3840 /* The GOT entries have not been initialized yet. Do it
3841 now, and emit any relocations. */
3842 if ((info->shared || indx != 0)
3843 && (h == NULL
3844 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3845 || h->root.type != bfd_link_hash_undefweak))
3846 need_relocs = TRUE;
3847
3848 switch (r_type)
3849 {
3850 case R_TILEGX_IMM16_X0_HW0_TLS_IE:
3851 case R_TILEGX_IMM16_X1_HW0_TLS_IE:
3852 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE:
3853 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE:
3854 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE:
3855 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE:
3856 if (need_relocs) {
3857 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3858 htab->elf.sgot->contents + off);
3859 outrel.r_offset = (htab->elf.sgot->output_section->vma
3860 + htab->elf.sgot->output_offset + off);
3861 outrel.r_addend = 0;
3862 if (indx == 0)
3863 outrel.r_addend = relocation - dtpoff_base (info);
3864 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3865 TILEGX_ELF_TPOFF_RELOC (htab));
3866 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3867 } else {
3868 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3869 tpoff (info, relocation),
3870 htab->elf.sgot->contents + off);
3871 }
3872 break;
3873
3874 case R_TILEGX_IMM16_X0_HW0_TLS_GD:
3875 case R_TILEGX_IMM16_X1_HW0_TLS_GD:
3876 case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD:
3877 case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD:
3878 case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD:
3879 case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD:
3880 if (need_relocs) {
3881 outrel.r_offset = (htab->elf.sgot->output_section->vma
3882 + htab->elf.sgot->output_offset + off);
3883 outrel.r_addend = 0;
3884 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3885 TILEGX_ELF_DTPMOD_RELOC (htab));
3886 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3887 htab->elf.sgot->contents + off);
3888 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3889 if (indx == 0)
3890 {
3891 BFD_ASSERT (! unresolved_reloc);
3892 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3893 relocation - dtpoff_base (info),
3894 (htab->elf.sgot->contents + off +
3895 TILEGX_ELF_WORD_BYTES (htab)));
3896 }
3897 else
3898 {
3899 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
3900 (htab->elf.sgot->contents + off +
3901 TILEGX_ELF_WORD_BYTES (htab)));
3902 outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx,
3903 TILEGX_ELF_DTPOFF_RELOC (htab));
3904 outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab);
3905 tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3906 }
3907 }
3908
3909 else {
3910 /* If we are not emitting relocations for a
3911 general dynamic reference, then we must be in a
3912 static link or an executable link with the
3913 symbol binding locally. Mark it as belonging
3914 to module 1, the executable. */
3915 TILEGX_ELF_PUT_WORD (htab, output_bfd, 1,
3916 htab->elf.sgot->contents + off );
3917 TILEGX_ELF_PUT_WORD (htab, output_bfd,
3918 relocation - dtpoff_base (info),
3919 htab->elf.sgot->contents + off +
3920 TILEGX_ELF_WORD_BYTES (htab));
3921 }
3922 break;
3923 }
3924 }
3925
3926 if (off >= (bfd_vma) -2)
3927 abort ();
3928
3929 relocation = off - got_base;
3930 unresolved_reloc = FALSE;
3931 howto = tilegx_elf_howto_table + r_type;
3932 break;
3933
3934 default:
3935 break;
3936 }
3937
3938 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3939 because such sections are not SEC_ALLOC and thus ld.so will
3940 not process them. */
3941 if (unresolved_reloc
3942 && !((input_section->flags & SEC_DEBUGGING) != 0
3943 && h->def_dynamic)
3944 && _bfd_elf_section_offset (output_bfd, info, input_section,
3945 rel->r_offset) != (bfd_vma) -1)
3946 (*_bfd_error_handler)
3947 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3948 input_bfd,
3949 input_section,
3950 (long) rel->r_offset,
3951 howto->name,
3952 h->root.root.string);
3953
3954 r = bfd_reloc_continue;
3955
3956 /* Get the operand creation function, if any. */
3957 create_func = reloc_to_create_func[r_type];
3958 if (create_func == NULL)
3959 {
3960 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3961 contents, rel->r_offset,
3962 relocation, rel->r_addend);
3963 }
3964 else
3965 {
3966 if (howto->pc_relative)
3967 {
3968 relocation -=
3969 input_section->output_section->vma + input_section->output_offset;
3970 if (howto->pcrel_offset)
3971 relocation -= rel->r_offset;
3972 }
3973
3974 bfd_byte *data;
3975
3976 /* Add the relocation addend if any to the final target value */
3977 relocation += rel->r_addend;
3978
3979 /* Do basic range checking */
3980 r = bfd_check_overflow (howto->complain_on_overflow,
3981 howto->bitsize,
3982 howto->rightshift,
3983 TILEGX_ELF_WORD_BYTES (htab) * 8,
3984 relocation);
3985
3986 /*
3987 * Write the relocated value out into the raw section data.
3988 * Don't put a relocation out in the .rela section.
3989 */
3990 tilegx_bundle_bits mask = create_func(-1);
3991 tilegx_bundle_bits value = create_func(relocation >> howto->rightshift);
3992
3993 /* Only touch bytes while the mask is not 0, so we
3994 don't write to out of bounds memory if this is actually
3995 a 16-bit switch instruction. */
3996 for (data = contents + rel->r_offset; mask != 0; data++)
3997 {
3998 bfd_byte byte_mask = (bfd_byte)mask;
3999 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
4000 mask >>= 8;
4001 value >>= 8;
4002 }
4003 }
4004
4005 if (r != bfd_reloc_ok)
4006 {
4007 const char *msg = NULL;
4008
4009 switch (r)
4010 {
4011 case bfd_reloc_overflow:
4012 r = info->callbacks->reloc_overflow
4013 (info, (h ? &h->root : NULL), name, howto->name,
4014 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4015 break;
4016
4017 case bfd_reloc_undefined:
4018 r = info->callbacks->undefined_symbol
4019 (info, name, input_bfd, input_section, rel->r_offset,
4020 TRUE);
4021 break;
4022
4023 case bfd_reloc_outofrange:
4024 msg = _("internal error: out of range error");
4025 break;
4026
4027 case bfd_reloc_notsupported:
4028 msg = _("internal error: unsupported relocation error");
4029 break;
4030
4031 case bfd_reloc_dangerous:
4032 msg = _("internal error: dangerous relocation");
4033 break;
4034
4035 default:
4036 msg = _("internal error: unknown error");
4037 break;
4038 }
4039
4040 if (msg)
4041 r = info->callbacks->warning
4042 (info, msg, name, input_bfd, input_section, rel->r_offset);
4043
4044 if (! r)
4045 return FALSE;
4046 }
4047 }
4048
4049 return TRUE;
4050 }
4051
4052 /* Finish up dynamic symbol handling. We set the contents of various
4053 dynamic sections here. */
4054
4055 bfd_boolean
4056 tilegx_elf_finish_dynamic_symbol (bfd *output_bfd,
4057 struct bfd_link_info *info,
4058 struct elf_link_hash_entry *h,
4059 Elf_Internal_Sym *sym)
4060 {
4061 struct tilegx_elf_link_hash_table *htab;
4062
4063 htab = tilegx_elf_hash_table (info);
4064 BFD_ASSERT (htab != NULL);
4065
4066 if (h->plt.offset != (bfd_vma) -1)
4067 {
4068 asection *splt;
4069 asection *srela;
4070 asection *sgotplt;
4071 Elf_Internal_Rela rela;
4072 bfd_byte *loc;
4073 bfd_vma r_offset;
4074 const struct elf_backend_data *bed = get_elf_backend_data (output_bfd);
4075
4076
4077 int rela_index;
4078
4079 /* This symbol has an entry in the PLT. Set it up. */
4080
4081 BFD_ASSERT (h->dynindx != -1);
4082
4083 splt = htab->elf.splt;
4084 srela = htab->elf.srelplt;
4085 sgotplt = htab->elf.sgotplt;
4086
4087 if (splt == NULL || srela == NULL)
4088 abort ();
4089
4090 /* Fill in the entry in the procedure linkage table. */
4091 rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt,
4092 h->plt.offset, &r_offset);
4093
4094 /* Fill in the entry in the global offset table, which initially points
4095 to the beginning of the plt. */
4096 TILEGX_ELF_PUT_WORD (htab, output_bfd,
4097 splt->output_section->vma + splt->output_offset,
4098 sgotplt->contents + r_offset);
4099
4100 /* Fill in the entry in the .rela.plt section. */
4101 rela.r_offset = (sgotplt->output_section->vma
4102 + sgotplt->output_offset
4103 + r_offset);
4104 rela.r_addend = 0;
4105 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT);
4106
4107 loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab);
4108 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4109
4110 if (!h->def_regular)
4111 {
4112 /* Mark the symbol as undefined, rather than as defined in
4113 the .plt section. Leave the value alone. */
4114 sym->st_shndx = SHN_UNDEF;
4115 /* If the symbol is weak, we do need to clear the value.
4116 Otherwise, the PLT entry would provide a definition for
4117 the symbol even if the symbol wasn't defined anywhere,
4118 and so the symbol would never be NULL. */
4119 if (!h->ref_regular_nonweak)
4120 sym->st_value = 0;
4121 }
4122 }
4123
4124 if (h->got.offset != (bfd_vma) -1
4125 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4126 && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4127 {
4128 asection *sgot;
4129 asection *srela;
4130 Elf_Internal_Rela rela;
4131
4132 /* This symbol has an entry in the GOT. Set it up. */
4133
4134 sgot = htab->elf.sgot;
4135 srela = htab->elf.srelgot;
4136 BFD_ASSERT (sgot != NULL && srela != NULL);
4137
4138 rela.r_offset = (sgot->output_section->vma
4139 + sgot->output_offset
4140 + (h->got.offset &~ (bfd_vma) 1));
4141
4142 /* If this is a -Bsymbolic link, and the symbol is defined
4143 locally, we just want to emit a RELATIVE reloc. Likewise if
4144 the symbol was forced to be local because of a version file.
4145 The entry in the global offset table will already have been
4146 initialized in the relocate_section function. */
4147 if (info->shared
4148 && (info->symbolic || h->dynindx == -1)
4149 && h->def_regular)
4150 {
4151 asection *sec = h->root.u.def.section;
4152 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE);
4153 rela.r_addend = (h->root.u.def.value
4154 + sec->output_section->vma
4155 + sec->output_offset);
4156 }
4157 else
4158 {
4159 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT);
4160 rela.r_addend = 0;
4161 }
4162
4163 TILEGX_ELF_PUT_WORD (htab, output_bfd, 0,
4164 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4165 tilegx_elf_append_rela (output_bfd, srela, &rela);
4166 }
4167
4168 if (h->needs_copy)
4169 {
4170 asection *s;
4171 Elf_Internal_Rela rela;
4172
4173 /* This symbols needs a copy reloc. Set it up. */
4174 BFD_ASSERT (h->dynindx != -1);
4175
4176 s = htab->srelbss;
4177 BFD_ASSERT (s != NULL);
4178
4179 rela.r_offset = (h->root.u.def.value
4180 + h->root.u.def.section->output_section->vma
4181 + h->root.u.def.section->output_offset);
4182 rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY);
4183 rela.r_addend = 0;
4184 tilegx_elf_append_rela (output_bfd, s, &rela);
4185 }
4186
4187 /* Mark some specially defined symbols as absolute. */
4188 if (h == htab->elf.hdynamic
4189 || (h == htab->elf.hgot || h == htab->elf.hplt))
4190 sym->st_shndx = SHN_ABS;
4191
4192 return TRUE;
4193 }
4194
4195 /* Finish up the dynamic sections. */
4196
4197 static bfd_boolean
4198 tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4199 bfd *dynobj, asection *sdyn,
4200 asection *splt ATTRIBUTE_UNUSED)
4201 {
4202 struct tilegx_elf_link_hash_table *htab;
4203 const struct elf_backend_data *bed;
4204 bfd_byte *dyncon, *dynconend;
4205 size_t dynsize;
4206
4207 htab = tilegx_elf_hash_table (info);
4208 BFD_ASSERT (htab != NULL);
4209 bed = get_elf_backend_data (output_bfd);
4210 dynsize = bed->s->sizeof_dyn;
4211 dynconend = sdyn->contents + sdyn->size;
4212
4213 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4214 {
4215 Elf_Internal_Dyn dyn;
4216 asection *s;
4217
4218 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4219
4220 switch (dyn.d_tag)
4221 {
4222 case DT_PLTGOT:
4223 s = htab->elf.sgotplt;
4224 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4225 break;
4226 case DT_JMPREL:
4227 s = htab->elf.srelplt;
4228 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4229 break;
4230 case DT_PLTRELSZ:
4231 s = htab->elf.srelplt;
4232 dyn.d_un.d_val = s->size;
4233 break;
4234 default:
4235 continue;
4236 }
4237
4238 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4239 }
4240 return TRUE;
4241 }
4242
4243 bfd_boolean
4244 tilegx_elf_finish_dynamic_sections (bfd *output_bfd,
4245 struct bfd_link_info *info)
4246 {
4247 bfd *dynobj;
4248 asection *sdyn;
4249 struct tilegx_elf_link_hash_table *htab;
4250 size_t pad_size;
4251
4252 htab = tilegx_elf_hash_table (info);
4253 BFD_ASSERT (htab != NULL);
4254 dynobj = htab->elf.dynobj;
4255
4256 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4257
4258 if (elf_hash_table (info)->dynamic_sections_created)
4259 {
4260 asection *splt;
4261 bfd_boolean ret;
4262
4263 splt = htab->elf.splt;
4264 BFD_ASSERT (splt != NULL && sdyn != NULL);
4265
4266 ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
4267
4268 if (ret != TRUE)
4269 return ret;
4270
4271 /* Fill in the head and tail entries in the procedure linkage table. */
4272 if (splt->size > 0)
4273 {
4274 memcpy (splt->contents,
4275 ABI_64_P (output_bfd) ?
4276 tilegx64_plt0_entry : tilegx32_plt0_entry,
4277 PLT_HEADER_SIZE);
4278
4279 memcpy (splt->contents + splt->size
4280 - PLT_ENTRY_SIZE + PLT_HEADER_SIZE,
4281 ABI_64_P (output_bfd) ?
4282 tilegx64_plt_tail_entry : tilegx32_plt_tail_entry,
4283 PLT_TAIL_SIZE);
4284 /* Add padding so that the plt section is a multiple of its
4285 entry size. */
4286 pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE;
4287 memset (splt->contents + splt->size - pad_size, 0, pad_size);
4288 }
4289
4290 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4291 = PLT_ENTRY_SIZE;
4292 }
4293
4294 if (htab->elf.sgotplt)
4295 {
4296 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
4297 {
4298 (*_bfd_error_handler)
4299 (_("discarded output section: `%A'"), htab->elf.sgotplt);
4300 return FALSE;
4301 }
4302
4303 if (htab->elf.sgotplt->size > 0)
4304 {
4305 /* Write the first two entries in .got.plt, needed for the dynamic
4306 linker. */
4307 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1,
4308 htab->elf.sgotplt->contents);
4309 TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0,
4310 htab->elf.sgotplt->contents
4311 + GOT_ENTRY_SIZE (htab));
4312 }
4313
4314 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize =
4315 GOT_ENTRY_SIZE (htab);
4316 }
4317
4318 if (htab->elf.sgot)
4319 {
4320 if (htab->elf.sgot->size > 0)
4321 {
4322 /* Set the first entry in the global offset table to the address of
4323 the dynamic section. */
4324 bfd_vma val = (sdyn ?
4325 sdyn->output_section->vma + sdyn->output_offset :
4326 0);
4327 TILEGX_ELF_PUT_WORD (htab, output_bfd, val,
4328 htab->elf.sgot->contents);
4329 }
4330
4331 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4332 GOT_ENTRY_SIZE (htab);
4333 }
4334
4335 return TRUE;
4336 }
4337
4338 \f
4339
4340 /* Return address for Ith PLT stub in section PLT, for relocation REL
4341 or (bfd_vma) -1 if it should not be included. */
4342
4343 bfd_vma
4344 tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt,
4345 const arelent *rel ATTRIBUTE_UNUSED)
4346 {
4347 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
4348 }
4349
4350 enum elf_reloc_type_class
4351 tilegx_reloc_type_class (const Elf_Internal_Rela *rela)
4352 {
4353 switch ((int) TILEGX_ELF_R_TYPE (rela->r_info))
4354 {
4355 case R_TILEGX_RELATIVE:
4356 return reloc_class_relative;
4357 case R_TILEGX_JMP_SLOT:
4358 return reloc_class_plt;
4359 case R_TILEGX_COPY:
4360 return reloc_class_copy;
4361 default:
4362 return reloc_class_normal;
4363 }
4364 }
4365
4366 int
4367 tilegx_additional_program_headers (bfd *abfd,
4368 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4369 {
4370 /* Each .intrpt section specified by the user adds another PT_LOAD
4371 header since the sections are discontiguous. */
4372 static const char intrpt_sections[4][9] =
4373 {
4374 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4375 };
4376 int count = 0;
4377 int i;
4378
4379 for (i = 0; i < 4; i++)
4380 {
4381 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4382 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4383 ++count;
4384 }
4385
4386 /* Add four "padding" headers in to leave room in case a custom linker
4387 script does something fancy. Otherwise ld complains that it ran
4388 out of program headers and refuses to link. */
4389 count += 4;
4390
4391 return count;
4392 }
4393
4394
4395 bfd_boolean
4396 _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4397 {
4398 const char *targ1 = bfd_get_target (ibfd);
4399 const char *targ2 = bfd_get_target (obfd);
4400
4401 if (strcmp (targ1, targ2) != 0)
4402 {
4403 (*_bfd_error_handler)
4404 (_("%B: Cannot link together %s and %s objects."),
4405 ibfd, targ1, targ2);
4406 bfd_set_error (bfd_error_bad_value);
4407 return FALSE;
4408 }
4409
4410 return TRUE;
4411 }
GDB Binutils - Deliverables
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