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ELF: Move dyn_relocs to struct elf_link_hash_entry
[thirdparty/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2020 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/tilepro.h"
26 #include "opcode/tilepro.h"
27 #include "libiberty.h"
28 #include "elf32-tilepro.h"
29
30 #define TILEPRO_BYTES_PER_WORD 4
31
32 static reloc_howto_type tilepro_elf_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_TILEPRO_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* TILEPRO ELF linker hash entry. */
683
684 struct tilepro_elf_link_hash_entry
685 {
686 struct elf_link_hash_entry elf;
687
688 #define GOT_UNKNOWN 0
689 #define GOT_NORMAL 1
690 #define GOT_TLS_GD 2
691 #define GOT_TLS_IE 4
692 unsigned char tls_type;
693 };
694
695 #define tilepro_elf_hash_entry(ent) \
696 ((struct tilepro_elf_link_hash_entry *)(ent))
697
698 struct _bfd_tilepro_elf_obj_tdata
699 {
700 struct elf_obj_tdata root;
701
702 /* tls_type for each local got entry. */
703 char *local_got_tls_type;
704 };
705
706 #define _bfd_tilepro_elf_tdata(abfd) \
707 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
708
709 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
710 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
711
712 #define is_tilepro_elf(bfd) \
713 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
714 && elf_tdata (bfd) != NULL \
715 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
716
717 /* Allocate TILEPro ELF private object data. */
718
719 static bfd_boolean
720 tilepro_elf_mkobject (bfd *abfd)
721 {
722 return bfd_elf_allocate_object (abfd,
723 sizeof (struct _bfd_tilepro_elf_obj_tdata),
724 TILEPRO_ELF_DATA);
725 }
726
727 #include "elf/common.h"
728 #include "elf/internal.h"
729
730 struct tilepro_elf_link_hash_table
731 {
732 struct elf_link_hash_table elf;
733
734 /* Small local sym to section mapping cache. */
735 struct sym_cache sym_cache;
736 };
737
738 /* Get the Tilepro ELF linker hash table from a link_info structure. */
739 #define tilepro_elf_hash_table(p) \
740 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
741 == TILEPRO_ELF_DATA \
742 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
743
744 static reloc_howto_type *
745 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
746 bfd_reloc_code_real_type code)
747 {
748 unsigned int i;
749
750 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
751 {
752 const reloc_map * entry;
753
754 entry = tilepro_reloc_map + i;
755
756 if (entry->bfd_reloc_val == code)
757 return entry->table + (entry->tilepro_reloc_val
758 - entry->table[0].type);
759 }
760
761 return NULL;
762 }
763
764 static reloc_howto_type *
765 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
766 const char *r_name)
767 {
768 unsigned int i;
769
770 for (i = 0;
771 i < (sizeof (tilepro_elf_howto_table)
772 / sizeof (tilepro_elf_howto_table[0]));
773 i++)
774 if (tilepro_elf_howto_table[i].name != NULL
775 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
776 return &tilepro_elf_howto_table[i];
777
778 return NULL;
779 }
780
781 /* Set the howto pointer for an TILEPro ELF reloc. */
782
783 static bfd_boolean
784 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
785 arelent * cache_ptr,
786 Elf_Internal_Rela * dst)
787 {
788 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
789
790 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
791 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
792 else if (r_type - R_TILEPRO_GNU_VTINHERIT
793 <= ((unsigned int) R_TILEPRO_GNU_VTENTRY
794 - (unsigned int) R_TILEPRO_GNU_VTINHERIT))
795 cache_ptr->howto
796 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
797 else
798 {
799 /* xgettext:c-format */
800 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
801 abfd, r_type);
802 bfd_set_error (bfd_error_bad_value);
803 return FALSE;
804 }
805 return TRUE;
806 }
807
808 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
809
810 static const tilepro_create_func reloc_to_create_func[] =
811 {
812 /* The first fourteen relocation types don't correspond to operands */
813 NULL,
814 NULL,
815 NULL,
816 NULL,
817 NULL,
818 NULL,
819 NULL,
820 NULL,
821 NULL,
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827
828 /* The remaining relocations are used for immediate operands */
829 create_BrOff_X1,
830 create_JOffLong_X1,
831 create_JOffLong_X1,
832 create_Imm8_X0,
833 create_Imm8_Y0,
834 create_Imm8_X1,
835 create_Imm8_Y1,
836 create_MT_Imm15_X1,
837 create_MF_Imm15_X1,
838 create_Imm16_X0,
839 create_Imm16_X1,
840 create_Imm16_X0,
841 create_Imm16_X1,
842 create_Imm16_X0,
843 create_Imm16_X1,
844 create_Imm16_X0,
845 create_Imm16_X1,
846 create_Imm16_X0,
847 create_Imm16_X1,
848 create_Imm16_X0,
849 create_Imm16_X1,
850 create_Imm16_X0,
851 create_Imm16_X1,
852 create_Imm16_X0,
853 create_Imm16_X1,
854 create_Imm16_X0,
855 create_Imm16_X1,
856 create_Imm16_X0,
857 create_Imm16_X1,
858 create_Imm16_X0,
859 create_Imm16_X1,
860 create_Imm16_X0,
861 create_Imm16_X1,
862 create_MMStart_X0,
863 create_MMEnd_X0,
864 create_MMStart_X1,
865 create_MMEnd_X1,
866 create_ShAmt_X0,
867 create_ShAmt_X1,
868 create_ShAmt_Y0,
869 create_ShAmt_Y1,
870
871 create_Dest_Imm8_X1,
872 NULL,
873 NULL,
874 NULL,
875 NULL,
876 NULL,
877 NULL,
878 NULL,
879 NULL,
880 NULL,
881 NULL,
882
883 create_Imm16_X0,
884 create_Imm16_X1,
885 create_Imm16_X0,
886 create_Imm16_X1,
887 create_Imm16_X0,
888 create_Imm16_X1,
889 create_Imm16_X0,
890 create_Imm16_X1,
891 create_Imm16_X0,
892 create_Imm16_X1,
893 create_Imm16_X0,
894 create_Imm16_X1,
895 create_Imm16_X0,
896 create_Imm16_X1,
897 create_Imm16_X0,
898 create_Imm16_X1,
899
900 NULL,
901 NULL,
902 NULL,
903
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908 create_Imm16_X0,
909 create_Imm16_X1,
910 create_Imm16_X0,
911 create_Imm16_X1,
912 };
913
914 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
915
916 /* Support for core dump NOTE sections. */
917
918 static bfd_boolean
919 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
920 {
921 int offset;
922 size_t size;
923
924 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
925 return FALSE;
926
927 /* pr_cursig */
928 elf_tdata (abfd)->core->signal =
929 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
930
931 /* pr_pid */
932 elf_tdata (abfd)->core->pid =
933 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
934
935 /* pr_reg */
936 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
937 size = TILEPRO_GREGSET_T_SIZE;
938
939 /* Make a ".reg/999" section. */
940 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
941 size, note->descpos + offset);
942 }
943
944 static bfd_boolean
945 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
946 {
947 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
948 return FALSE;
949
950 elf_tdata (abfd)->core->program
951 = _bfd_elfcore_strndup (abfd,
952 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
953 16);
954 elf_tdata (abfd)->core->command
955 = _bfd_elfcore_strndup (abfd,
956 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
957 ELF_PR_PSARGS_SIZE);
958
959
960 /* Note that for some reason, a spurious space is tacked
961 onto the end of the args in some (at least one anyway)
962 implementations, so strip it off if it exists. */
963 {
964 char *command = elf_tdata (abfd)->core->command;
965 int n = strlen (command);
966
967 if (0 < n && command[n - 1] == ' ')
968 command[n - 1] = '\0';
969 }
970
971 return TRUE;
972 }
973
974
975 static void
976 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
977 {
978 Elf32_External_Rela *loc32;
979
980 loc32 = (Elf32_External_Rela *) s->contents;
981 loc32 += s->reloc_count++;
982 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
983 }
984
985 /* PLT/GOT stuff */
986
987 /* The procedure linkage table starts with the following header:
988
989 {
990 rli r29, r29, 16
991 lwadd r28, r27, 4
992 }
993 lw r27, r27
994 {
995 info 10 ## SP not offset, return PC in LR
996 jr r27
997 }
998
999 Subsequent entries are the following, jumping to the header at the end:
1000
1001 lnk r28
1002 1:
1003 {
1004 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1005 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1006 }
1007 {
1008 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1009 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1010 }
1011 {
1012 auli r29, zero, MY_PLT_INDEX
1013 lw r28, r28
1014 }
1015 {
1016 info 10 ## SP not offset, return PC in LR
1017 jr r28
1018 }
1019
1020 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1021 16 bits as an unsigned offset; if we use the low bits we would get an
1022 unwanted sign extension. The PLT header then rotates the index to get the
1023 right value, before calling the resolution routine. This computation can
1024 fit in unused bundle slots so it's free.
1025
1026 This code sequence lets the code at at the start of the PLT determine
1027 which PLT entry was executed by examining 'r29'.
1028
1029 Note that MY_PLT_INDEX skips over the header entries, so the first
1030 actual jump table entry has index zero.
1031 */
1032
1033 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1034 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1035
1036 #define PLT_HEADER_SIZE \
1037 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1038 #define PLT_ENTRY_SIZE \
1039 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1040
1041 /* The size in bytes of an entry in the global offset table. */
1042
1043 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1044
1045 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1046
1047
1048 static const bfd_byte
1049 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1050 {
1051 0x5d, 0x07, 0x03, 0x70,
1052 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1053 0x00, 0x50, 0xba, 0x6d,
1054 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1055 0xff, 0xaf, 0x10, 0x50,
1056 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1057 };
1058
1059 static const bfd_byte
1060 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1061 {
1062 0x00, 0x50, 0x16, 0x70,
1063 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1064 0x1c, 0x07, 0x00, 0xa0,
1065 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1066 0xdd, 0x0f, 0x00, 0x30,
1067 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1068 0xff, 0xaf, 0x10, 0x50,
1069 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1070 0x00, 0x00, 0x00, 0x00,
1071 0x00, 0x00, 0x00, 0x00,
1072 };
1073
1074 static const bfd_byte
1075 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1076 {
1077 0x00, 0x50, 0x16, 0x70,
1078 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1079 0x1c, 0x07, 0x00, 0xb0,
1080 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1081 0x1c, 0x07, 0x00, 0xa0,
1082 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1083 0xdd, 0x0f, 0x00, 0x30,
1084 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1085 0xff, 0xaf, 0x10, 0x50,
1086 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1087 };
1088
1089 static bfd_vma
1090 tilepro_ha16(bfd_vma vma)
1091 {
1092 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1093 }
1094
1095 static int
1096 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1097 bfd_vma *r_offset)
1098 {
1099 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1100 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1101 tilepro_bundle_bits *pc;
1102
1103 /* Compute the distance from the got entry to the lnk. */
1104 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1105 + sgotplt->output_offset
1106 + got_offset
1107 - splt->output_section->vma
1108 - splt->output_offset
1109 - offset
1110 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1111
1112 /* Compute the distance to GOTPLT[0]. */
1113 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1114
1115 /* Check whether we can use the short plt entry with 16-bit offset. */
1116 bfd_boolean short_plt_entry =
1117 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1118
1119 /* Copy the plt entry template. */
1120 memcpy (splt->contents + offset,
1121 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1122 PLT_ENTRY_SIZE);
1123
1124 /* Write the immediate offsets. */
1125 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1126 pc++;
1127
1128 if (!short_plt_entry)
1129 {
1130 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1131 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1132 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1133 }
1134
1135 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1136 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1137 *pc++ |= create_Imm16_X0 (dist_got_entry)
1138 | create_Imm16_X1 (dist_got0);
1139
1140 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1141 *pc |= create_Imm16_X0 (plt_index);
1142
1143 /* Set the relocation offset. */
1144 *r_offset = got_offset;
1145
1146 return plt_index;
1147 }
1148
1149 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1150
1151
1152 /* Create an entry in an TILEPro ELF linker hash table. */
1153
1154 static struct bfd_hash_entry *
1155 link_hash_newfunc (struct bfd_hash_entry *entry,
1156 struct bfd_hash_table *table, const char *string)
1157 {
1158 /* Allocate the structure if it has not already been allocated by a
1159 subclass. */
1160 if (entry == NULL)
1161 {
1162 entry =
1163 bfd_hash_allocate (table,
1164 sizeof (struct tilepro_elf_link_hash_entry));
1165 if (entry == NULL)
1166 return entry;
1167 }
1168
1169 /* Call the allocation method of the superclass. */
1170 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1171 if (entry != NULL)
1172 {
1173 struct tilepro_elf_link_hash_entry *eh;
1174
1175 eh = (struct tilepro_elf_link_hash_entry *) entry;
1176 eh->tls_type = GOT_UNKNOWN;
1177 }
1178
1179 return entry;
1180 }
1181
1182 /* Create a TILEPRO ELF linker hash table. */
1183
1184 static struct bfd_link_hash_table *
1185 tilepro_elf_link_hash_table_create (bfd *abfd)
1186 {
1187 struct tilepro_elf_link_hash_table *ret;
1188 size_t amt = sizeof (struct tilepro_elf_link_hash_table);
1189
1190 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1191 if (ret == NULL)
1192 return NULL;
1193
1194 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1195 sizeof (struct tilepro_elf_link_hash_entry),
1196 TILEPRO_ELF_DATA))
1197 {
1198 free (ret);
1199 return NULL;
1200 }
1201
1202 return &ret->elf.root;
1203 }
1204
1205 /* Create the .got section. */
1206
1207 static bfd_boolean
1208 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1209 {
1210 flagword flags;
1211 asection *s, *s_got;
1212 struct elf_link_hash_entry *h;
1213 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1214 struct elf_link_hash_table *htab = elf_hash_table (info);
1215
1216 /* This function may be called more than once. */
1217 if (htab->sgot != NULL)
1218 return TRUE;
1219
1220 flags = bed->dynamic_sec_flags;
1221
1222 s = bfd_make_section_with_flags (abfd,
1223 (bed->rela_plts_and_copies_p
1224 ? ".rela.got" : ".rel.got"),
1225 (bed->dynamic_sec_flags
1226 | SEC_READONLY));
1227 if (s == NULL
1228 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1229 return FALSE;
1230 htab->srelgot = s;
1231
1232 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1233 if (s == NULL
1234 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1235 return FALSE;
1236 htab->sgot = s;
1237
1238 /* The first bit of the global offset table is the header. */
1239 s->size += bed->got_header_size;
1240
1241 if (bed->want_got_plt)
1242 {
1243 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1244 if (s == NULL
1245 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1246 return FALSE;
1247 htab->sgotplt = s;
1248
1249 /* Reserve room for the header. */
1250 s->size += GOTPLT_HEADER_SIZE;
1251 }
1252
1253 if (bed->want_got_sym)
1254 {
1255 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1256 section. We don't do this in the linker script because we don't want
1257 to define the symbol if we are not creating a global offset
1258 table. */
1259 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1260 "_GLOBAL_OFFSET_TABLE_");
1261 elf_hash_table (info)->hgot = h;
1262 if (h == NULL)
1263 return FALSE;
1264 }
1265
1266 return TRUE;
1267 }
1268
1269 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1270 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1271 hash table. */
1272
1273 static bfd_boolean
1274 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1275 struct bfd_link_info *info)
1276 {
1277 if (!tilepro_elf_create_got_section (dynobj, info))
1278 return FALSE;
1279
1280 return _bfd_elf_create_dynamic_sections (dynobj, info);
1281 }
1282
1283 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1284
1285 static void
1286 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1287 struct elf_link_hash_entry *dir,
1288 struct elf_link_hash_entry *ind)
1289 {
1290 struct tilepro_elf_link_hash_entry *edir, *eind;
1291
1292 edir = (struct tilepro_elf_link_hash_entry *) dir;
1293 eind = (struct tilepro_elf_link_hash_entry *) ind;
1294
1295 if (ind->dyn_relocs != NULL)
1296 {
1297 if (dir->dyn_relocs != NULL)
1298 {
1299 struct elf_dyn_relocs **pp;
1300 struct elf_dyn_relocs *p;
1301
1302 /* Add reloc counts against the indirect sym to the direct sym
1303 list. Merge any entries against the same section. */
1304 for (pp = &ind->dyn_relocs; (p = *pp) != NULL; )
1305 {
1306 struct elf_dyn_relocs *q;
1307
1308 for (q = dir->dyn_relocs; q != NULL; q = q->next)
1309 if (q->sec == p->sec)
1310 {
1311 q->pc_count += p->pc_count;
1312 q->count += p->count;
1313 *pp = p->next;
1314 break;
1315 }
1316 if (q == NULL)
1317 pp = &p->next;
1318 }
1319 *pp = dir->dyn_relocs;
1320 }
1321
1322 dir->dyn_relocs = ind->dyn_relocs;
1323 ind->dyn_relocs = NULL;
1324 }
1325
1326 if (ind->root.type == bfd_link_hash_indirect
1327 && dir->got.refcount <= 0)
1328 {
1329 edir->tls_type = eind->tls_type;
1330 eind->tls_type = GOT_UNKNOWN;
1331 }
1332 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1333 }
1334
1335 static int
1336 tilepro_tls_translate_to_le (int r_type)
1337 {
1338 switch (r_type)
1339 {
1340 case R_TILEPRO_IMM16_X0_TLS_GD:
1341 case R_TILEPRO_IMM16_X0_TLS_IE:
1342 return R_TILEPRO_IMM16_X0_TLS_LE;
1343
1344 case R_TILEPRO_IMM16_X1_TLS_GD:
1345 case R_TILEPRO_IMM16_X1_TLS_IE:
1346 return R_TILEPRO_IMM16_X1_TLS_LE;
1347
1348 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1349 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1350 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1351
1352 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1353 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1354 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1355
1356 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1357 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1358 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1359
1360 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1361 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1362 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1363
1364 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1365 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1366 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1367
1368 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1369 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1370 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1371 }
1372 return r_type;
1373 }
1374
1375 static int
1376 tilepro_tls_translate_to_ie (int r_type)
1377 {
1378 switch (r_type)
1379 {
1380 case R_TILEPRO_IMM16_X0_TLS_GD:
1381 case R_TILEPRO_IMM16_X0_TLS_IE:
1382 return R_TILEPRO_IMM16_X0_TLS_IE;
1383
1384 case R_TILEPRO_IMM16_X1_TLS_GD:
1385 case R_TILEPRO_IMM16_X1_TLS_IE:
1386 return R_TILEPRO_IMM16_X1_TLS_IE;
1387
1388 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1389 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1390 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1391
1392 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1393 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1394 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1395
1396 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1397 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1398 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1399
1400 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1401 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1402 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1403
1404 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1405 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1406 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1407
1408 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1409 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1410 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1411 }
1412 return r_type;
1413 }
1414
1415 static int
1416 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1417 int is_local)
1418 {
1419 if (!bfd_link_executable (info))
1420 return r_type;
1421
1422 if (is_local)
1423 return tilepro_tls_translate_to_le (r_type);
1424 else
1425 return tilepro_tls_translate_to_ie (r_type);
1426 }
1427
1428 /* Look through the relocs for a section during the first phase, and
1429 allocate space in the global offset table or procedure linkage
1430 table. */
1431
1432 static bfd_boolean
1433 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1434 asection *sec, const Elf_Internal_Rela *relocs)
1435 {
1436 struct tilepro_elf_link_hash_table *htab;
1437 Elf_Internal_Shdr *symtab_hdr;
1438 struct elf_link_hash_entry **sym_hashes;
1439 const Elf_Internal_Rela *rel;
1440 const Elf_Internal_Rela *rel_end;
1441 asection *sreloc;
1442 int num_relocs;
1443
1444 if (bfd_link_relocatable (info))
1445 return TRUE;
1446
1447 htab = tilepro_elf_hash_table (info);
1448 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1449 sym_hashes = elf_sym_hashes (abfd);
1450
1451 sreloc = NULL;
1452
1453 num_relocs = sec->reloc_count;
1454
1455 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1456
1457 if (htab->elf.dynobj == NULL)
1458 htab->elf.dynobj = abfd;
1459
1460 rel_end = relocs + num_relocs;
1461 for (rel = relocs; rel < rel_end; rel++)
1462 {
1463 unsigned int r_type;
1464 unsigned int r_symndx;
1465 struct elf_link_hash_entry *h;
1466 int tls_type;
1467
1468 r_symndx = ELF32_R_SYM (rel->r_info);
1469 r_type = ELF32_R_TYPE (rel->r_info);
1470
1471 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1472 {
1473 /* xgettext:c-format */
1474 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1475 abfd, r_symndx);
1476 return FALSE;
1477 }
1478
1479 if (r_symndx < symtab_hdr->sh_info)
1480 h = NULL;
1481 else
1482 {
1483 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1484 while (h->root.type == bfd_link_hash_indirect
1485 || h->root.type == bfd_link_hash_warning)
1486 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1487 }
1488
1489 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1490 switch (r_type)
1491 {
1492 case R_TILEPRO_IMM16_X0_TLS_LE:
1493 case R_TILEPRO_IMM16_X1_TLS_LE:
1494 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1495 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1496 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1497 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1498 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1499 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1500 if (!bfd_link_executable (info))
1501 goto r_tilepro_plt32;
1502 break;
1503
1504 case R_TILEPRO_IMM16_X0_TLS_GD:
1505 case R_TILEPRO_IMM16_X1_TLS_GD:
1506 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1507 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1508 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1509 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1510 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1511 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1512 BFD_ASSERT (bfd_link_pic (info));
1513 tls_type = GOT_TLS_GD;
1514 goto have_got_reference;
1515
1516 case R_TILEPRO_IMM16_X0_TLS_IE:
1517 case R_TILEPRO_IMM16_X1_TLS_IE:
1518 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1519 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1520 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1521 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1522 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1523 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1524 tls_type = GOT_TLS_IE;
1525 if (!bfd_link_executable (info))
1526 info->flags |= DF_STATIC_TLS;
1527 goto have_got_reference;
1528
1529 case R_TILEPRO_IMM16_X0_GOT:
1530 case R_TILEPRO_IMM16_X1_GOT:
1531 case R_TILEPRO_IMM16_X0_GOT_LO:
1532 case R_TILEPRO_IMM16_X1_GOT_LO:
1533 case R_TILEPRO_IMM16_X0_GOT_HI:
1534 case R_TILEPRO_IMM16_X1_GOT_HI:
1535 case R_TILEPRO_IMM16_X0_GOT_HA:
1536 case R_TILEPRO_IMM16_X1_GOT_HA:
1537 tls_type = GOT_NORMAL;
1538 /* Fall Through */
1539
1540 have_got_reference:
1541 /* This symbol requires a global offset table entry. */
1542 {
1543 int old_tls_type;
1544
1545 if (h != NULL)
1546 {
1547 h->got.refcount += 1;
1548 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1549 }
1550 else
1551 {
1552 bfd_signed_vma *local_got_refcounts;
1553
1554 /* This is a global offset table entry for a local symbol. */
1555 local_got_refcounts = elf_local_got_refcounts (abfd);
1556 if (local_got_refcounts == NULL)
1557 {
1558 bfd_size_type size;
1559
1560 size = symtab_hdr->sh_info;
1561 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1562 local_got_refcounts = ((bfd_signed_vma *)
1563 bfd_zalloc (abfd, size));
1564 if (local_got_refcounts == NULL)
1565 return FALSE;
1566 elf_local_got_refcounts (abfd) = local_got_refcounts;
1567 _bfd_tilepro_elf_local_got_tls_type (abfd)
1568 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1569 }
1570 local_got_refcounts[r_symndx] += 1;
1571 old_tls_type =
1572 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1573 }
1574
1575 /* If a TLS symbol is accessed using IE at least once,
1576 there is no point to use dynamic model for it. */
1577 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1578 && (old_tls_type != GOT_TLS_GD
1579 || tls_type != GOT_TLS_IE))
1580 {
1581 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1582 tls_type = old_tls_type;
1583 else
1584 {
1585 _bfd_error_handler
1586 /* xgettext:c-format */
1587 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1588 abfd, h ? h->root.root.string : "<local>");
1589 return FALSE;
1590 }
1591 }
1592
1593 if (old_tls_type != tls_type)
1594 {
1595 if (h != NULL)
1596 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1597 else
1598 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1599 tls_type;
1600 }
1601 }
1602
1603 if (htab->elf.sgot == NULL)
1604 {
1605 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1606 return FALSE;
1607 }
1608 break;
1609
1610 case R_TILEPRO_TLS_GD_CALL:
1611 if (!bfd_link_executable (info))
1612 {
1613 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1614 against __tls_get_addr. */
1615 struct bfd_link_hash_entry *bh = NULL;
1616 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1617 "__tls_get_addr", 0,
1618 bfd_und_section_ptr, 0,
1619 NULL, FALSE, FALSE,
1620 &bh))
1621 return FALSE;
1622 h = (struct elf_link_hash_entry *) bh;
1623 }
1624 else
1625 break;
1626 /* Fall through */
1627
1628 case R_TILEPRO_JOFFLONG_X1_PLT:
1629 /* This symbol requires a procedure linkage table entry. We
1630 actually build the entry in adjust_dynamic_symbol,
1631 because this might be a case of linking PIC code without
1632 linking in any dynamic objects, in which case we don't
1633 need to generate a procedure linkage table after all. */
1634
1635 if (h != NULL)
1636 {
1637 h->needs_plt = 1;
1638 h->plt.refcount += 1;
1639 }
1640 break;
1641
1642 case R_TILEPRO_32_PCREL:
1643 case R_TILEPRO_16_PCREL:
1644 case R_TILEPRO_8_PCREL:
1645 case R_TILEPRO_IMM16_X0_PCREL:
1646 case R_TILEPRO_IMM16_X1_PCREL:
1647 case R_TILEPRO_IMM16_X0_LO_PCREL:
1648 case R_TILEPRO_IMM16_X1_LO_PCREL:
1649 case R_TILEPRO_IMM16_X0_HI_PCREL:
1650 case R_TILEPRO_IMM16_X1_HI_PCREL:
1651 case R_TILEPRO_IMM16_X0_HA_PCREL:
1652 case R_TILEPRO_IMM16_X1_HA_PCREL:
1653 if (h != NULL)
1654 h->non_got_ref = 1;
1655
1656 if (h != NULL
1657 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1658 break;
1659 /* Fall through. */
1660
1661 case R_TILEPRO_32:
1662 case R_TILEPRO_16:
1663 case R_TILEPRO_8:
1664 case R_TILEPRO_LO16:
1665 case R_TILEPRO_HI16:
1666 case R_TILEPRO_HA16:
1667 case R_TILEPRO_COPY:
1668 case R_TILEPRO_GLOB_DAT:
1669 case R_TILEPRO_JMP_SLOT:
1670 case R_TILEPRO_RELATIVE:
1671 case R_TILEPRO_BROFF_X1:
1672 case R_TILEPRO_JOFFLONG_X1:
1673 case R_TILEPRO_IMM8_X0:
1674 case R_TILEPRO_IMM8_Y0:
1675 case R_TILEPRO_IMM8_X1:
1676 case R_TILEPRO_IMM8_Y1:
1677 case R_TILEPRO_DEST_IMM8_X1:
1678 case R_TILEPRO_MT_IMM15_X1:
1679 case R_TILEPRO_MF_IMM15_X1:
1680 case R_TILEPRO_IMM16_X0:
1681 case R_TILEPRO_IMM16_X1:
1682 case R_TILEPRO_IMM16_X0_LO:
1683 case R_TILEPRO_IMM16_X1_LO:
1684 case R_TILEPRO_IMM16_X0_HI:
1685 case R_TILEPRO_IMM16_X1_HI:
1686 case R_TILEPRO_IMM16_X0_HA:
1687 case R_TILEPRO_IMM16_X1_HA:
1688 case R_TILEPRO_MMSTART_X0:
1689 case R_TILEPRO_MMEND_X0:
1690 case R_TILEPRO_MMSTART_X1:
1691 case R_TILEPRO_MMEND_X1:
1692 case R_TILEPRO_SHAMT_X0:
1693 case R_TILEPRO_SHAMT_X1:
1694 case R_TILEPRO_SHAMT_Y0:
1695 case R_TILEPRO_SHAMT_Y1:
1696 if (h != NULL)
1697 h->non_got_ref = 1;
1698
1699 r_tilepro_plt32:
1700 if (h != NULL && !bfd_link_pic (info))
1701 {
1702 /* We may need a .plt entry if the function this reloc
1703 refers to is in a shared lib. */
1704 h->plt.refcount += 1;
1705 }
1706
1707 /* If we are creating a shared library, and this is a reloc
1708 against a global symbol, or a non PC relative reloc
1709 against a local symbol, then we need to copy the reloc
1710 into the shared library. However, if we are linking with
1711 -Bsymbolic, we do not need to copy a reloc against a
1712 global symbol which is defined in an object we are
1713 including in the link (i.e., DEF_REGULAR is set). At
1714 this point we have not seen all the input files, so it is
1715 possible that DEF_REGULAR is not set now but will be set
1716 later (it is never cleared). In case of a weak definition,
1717 DEF_REGULAR may be cleared later by a strong definition in
1718 a shared library. We account for that possibility below by
1719 storing information in the relocs_copied field of the hash
1720 table entry. A similar situation occurs when creating
1721 shared libraries and symbol visibility changes render the
1722 symbol local.
1723
1724 If on the other hand, we are creating an executable, we
1725 may need to keep relocations for symbols satisfied by a
1726 dynamic library if we manage to avoid copy relocs for the
1727 symbol. */
1728 if ((bfd_link_pic (info)
1729 && (sec->flags & SEC_ALLOC) != 0
1730 && (! tilepro_elf_howto_table[r_type].pc_relative
1731 || (h != NULL
1732 && (! info->symbolic
1733 || h->root.type == bfd_link_hash_defweak
1734 || !h->def_regular))))
1735 || (!bfd_link_pic (info)
1736 && (sec->flags & SEC_ALLOC) != 0
1737 && h != NULL
1738 && (h->root.type == bfd_link_hash_defweak
1739 || !h->def_regular)))
1740 {
1741 struct elf_dyn_relocs *p;
1742 struct elf_dyn_relocs **head;
1743
1744 /* When creating a shared object, we must copy these
1745 relocs into the output file. We create a reloc
1746 section in dynobj and make room for the reloc. */
1747 if (sreloc == NULL)
1748 {
1749 sreloc = _bfd_elf_make_dynamic_reloc_section
1750 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1751
1752 if (sreloc == NULL)
1753 return FALSE;
1754 }
1755
1756 /* If this is a global symbol, we count the number of
1757 relocations we need for this symbol. */
1758 if (h != NULL)
1759 head = &h->dyn_relocs;
1760 else
1761 {
1762 /* Track dynamic relocs needed for local syms too.
1763 We really need local syms available to do this
1764 easily. Oh well. */
1765
1766 asection *s;
1767 void *vpp;
1768 Elf_Internal_Sym *isym;
1769
1770 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1771 abfd, r_symndx);
1772 if (isym == NULL)
1773 return FALSE;
1774
1775 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1776 if (s == NULL)
1777 s = sec;
1778
1779 vpp = &elf_section_data (s)->local_dynrel;
1780 head = (struct elf_dyn_relocs **) vpp;
1781 }
1782
1783 p = *head;
1784 if (p == NULL || p->sec != sec)
1785 {
1786 size_t amt = sizeof *p;
1787 p = ((struct elf_dyn_relocs *)
1788 bfd_alloc (htab->elf.dynobj, amt));
1789 if (p == NULL)
1790 return FALSE;
1791 p->next = *head;
1792 *head = p;
1793 p->sec = sec;
1794 p->count = 0;
1795 p->pc_count = 0;
1796 }
1797
1798 p->count += 1;
1799 if (tilepro_elf_howto_table[r_type].pc_relative)
1800 p->pc_count += 1;
1801 }
1802
1803 break;
1804
1805 case R_TILEPRO_GNU_VTINHERIT:
1806 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1807 return FALSE;
1808 break;
1809
1810 case R_TILEPRO_GNU_VTENTRY:
1811 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1812 return FALSE;
1813 break;
1814
1815 default:
1816 break;
1817 }
1818 }
1819
1820 return TRUE;
1821 }
1822
1823 \f
1824 static asection *
1825 tilepro_elf_gc_mark_hook (asection *sec,
1826 struct bfd_link_info *info,
1827 Elf_Internal_Rela *rel,
1828 struct elf_link_hash_entry *h,
1829 Elf_Internal_Sym *sym)
1830 {
1831 if (h != NULL)
1832 {
1833 switch (ELF32_R_TYPE (rel->r_info))
1834 {
1835 case R_TILEPRO_GNU_VTINHERIT:
1836 case R_TILEPRO_GNU_VTENTRY:
1837 return NULL;
1838 }
1839 }
1840
1841 /* FIXME: The test here, in check_relocs and in relocate_section
1842 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1843 if (bfd_link_pic (info))
1844 {
1845 struct bfd_link_hash_entry *bh;
1846
1847 switch (ELF32_R_TYPE (rel->r_info))
1848 {
1849 case R_TILEPRO_TLS_GD_CALL:
1850 /* This reloc implicitly references __tls_get_addr. We know
1851 another reloc will reference the same symbol as the one
1852 on this reloc, so the real symbol and section will be
1853 gc marked when processing the other reloc. That lets
1854 us handle __tls_get_addr here. */
1855 bh = NULL;
1856 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
1857 "__tls_get_addr", 0,
1858 bfd_und_section_ptr,
1859 0, NULL, FALSE,
1860 FALSE, &bh))
1861 return NULL;
1862 h = (struct elf_link_hash_entry *) bh;
1863 BFD_ASSERT (h != NULL);
1864 h->mark = 1;
1865 if (h->is_weakalias)
1866 weakdef (h)->mark = 1;
1867 sym = NULL;
1868 }
1869 }
1870
1871 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1872 }
1873
1874 /* Find dynamic relocs for H that apply to read-only sections. */
1875
1876 static asection *
1877 readonly_dynrelocs (struct elf_link_hash_entry *h)
1878 {
1879 struct elf_dyn_relocs *p;
1880
1881 for (p = h->dyn_relocs; p != NULL; p = p->next)
1882 {
1883 asection *s = p->sec->output_section;
1884
1885 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1886 return p->sec;
1887 }
1888 return NULL;
1889 }
1890
1891 /* Adjust a symbol defined by a dynamic object and referenced by a
1892 regular object. The current definition is in some section of the
1893 dynamic object, but we're not including those sections. We have to
1894 change the definition to something the rest of the link can
1895 understand. */
1896
1897 static bfd_boolean
1898 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1899 struct elf_link_hash_entry *h)
1900 {
1901 struct tilepro_elf_link_hash_table *htab;
1902 asection *s, *srel;
1903
1904 htab = tilepro_elf_hash_table (info);
1905 BFD_ASSERT (htab != NULL);
1906
1907 /* Make sure we know what is going on here. */
1908 BFD_ASSERT (htab->elf.dynobj != NULL
1909 && (h->needs_plt
1910 || h->is_weakalias
1911 || (h->def_dynamic
1912 && h->ref_regular
1913 && !h->def_regular)));
1914
1915 /* If this is a function, put it in the procedure linkage table. We
1916 will fill in the contents of the procedure linkage table later
1917 (although we could actually do it here). */
1918 if (h->type == STT_FUNC || h->needs_plt)
1919 {
1920 if (h->plt.refcount <= 0
1921 || SYMBOL_CALLS_LOCAL (info, h)
1922 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1923 && h->root.type == bfd_link_hash_undefweak))
1924 {
1925 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1926 reloc in an input file, but the symbol was never referred
1927 to by a dynamic object, or if all references were garbage
1928 collected. In such a case, we don't actually need to build
1929 a procedure linkage table, and we can just do a
1930 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1931 h->plt.offset = (bfd_vma) -1;
1932 h->needs_plt = 0;
1933 }
1934
1935 return TRUE;
1936 }
1937 else
1938 h->plt.offset = (bfd_vma) -1;
1939
1940 /* If this is a weak symbol, and there is a real definition, the
1941 processor independent code will have arranged for us to see the
1942 real definition first, and we can just use the same value. */
1943 if (h->is_weakalias)
1944 {
1945 struct elf_link_hash_entry *def = weakdef (h);
1946 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1947 h->root.u.def.section = def->root.u.def.section;
1948 h->root.u.def.value = def->root.u.def.value;
1949 return TRUE;
1950 }
1951
1952 /* This is a reference to a symbol defined by a dynamic object which
1953 is not a function. */
1954
1955 /* If we are creating a shared library, we must presume that the
1956 only references to the symbol are via the global offset table.
1957 For such cases we need not do anything here; the relocations will
1958 be handled correctly by relocate_section. */
1959 if (bfd_link_pic (info))
1960 return TRUE;
1961
1962 /* If there are no references to this symbol that do not use the
1963 GOT, we don't need to generate a copy reloc. */
1964 if (!h->non_got_ref)
1965 return TRUE;
1966
1967 /* If -z nocopyreloc was given, we won't generate them either. */
1968 if (info->nocopyreloc)
1969 {
1970 h->non_got_ref = 0;
1971 return TRUE;
1972 }
1973
1974 /* If we don't find any dynamic relocs in read-only sections, then
1975 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1976 if (!readonly_dynrelocs (h))
1977 {
1978 h->non_got_ref = 0;
1979 return TRUE;
1980 }
1981
1982 /* We must allocate the symbol in our .dynbss section, which will
1983 become part of the .bss section of the executable. There will be
1984 an entry for this symbol in the .dynsym section. The dynamic
1985 object will contain position independent code, so all references
1986 from the dynamic object to this symbol will go through the global
1987 offset table. The dynamic linker will use the .dynsym entry to
1988 determine the address it must put in the global offset table, so
1989 both the dynamic object and the regular object will refer to the
1990 same memory location for the variable. */
1991
1992 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
1993 to copy the initial value out of the dynamic object and into the
1994 runtime process image. We need to remember the offset into the
1995 .rel.bss section we are going to use. */
1996 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
1997 {
1998 s = htab->elf.sdynrelro;
1999 srel = htab->elf.sreldynrelro;
2000 }
2001 else
2002 {
2003 s = htab->elf.sdynbss;
2004 srel = htab->elf.srelbss;
2005 }
2006 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2007 {
2008 srel->size += TILEPRO_ELF_RELA_BYTES;
2009 h->needs_copy = 1;
2010 }
2011
2012 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2013 }
2014
2015 /* Allocate space in .plt, .got and associated reloc sections for
2016 dynamic relocs. */
2017
2018 static bfd_boolean
2019 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2020 {
2021 struct bfd_link_info *info;
2022 struct tilepro_elf_link_hash_table *htab;
2023 struct elf_dyn_relocs *p;
2024
2025 if (h->root.type == bfd_link_hash_indirect)
2026 return TRUE;
2027
2028 info = (struct bfd_link_info *) inf;
2029 htab = tilepro_elf_hash_table (info);
2030 BFD_ASSERT (htab != NULL);
2031
2032 if (htab->elf.dynamic_sections_created
2033 && h->plt.refcount > 0)
2034 {
2035 /* Make sure this symbol is output as a dynamic symbol.
2036 Undefined weak syms won't yet be marked as dynamic. */
2037 if (h->dynindx == -1
2038 && !h->forced_local)
2039 {
2040 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2041 return FALSE;
2042 }
2043
2044 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2045 {
2046 asection *s = htab->elf.splt;
2047
2048 /* Allocate room for the header. */
2049 if (s->size == 0)
2050 {
2051 s->size = PLT_ENTRY_SIZE;
2052 }
2053
2054 h->plt.offset = s->size;
2055
2056 /* If this symbol is not defined in a regular file, and we are
2057 not generating a shared library, then set the symbol to this
2058 location in the .plt. This is required to make function
2059 pointers compare as equal between the normal executable and
2060 the shared library. */
2061 if (! bfd_link_pic (info)
2062 && !h->def_regular)
2063 {
2064 h->root.u.def.section = s;
2065 h->root.u.def.value = h->plt.offset;
2066 }
2067
2068 /* Make room for this entry. */
2069 s->size += PLT_ENTRY_SIZE;
2070
2071 /* We also need to make an entry in the .got.plt section. */
2072 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2073
2074 /* We also need to make an entry in the .rela.plt section. */
2075 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2076 }
2077 else
2078 {
2079 h->plt.offset = (bfd_vma) -1;
2080 h->needs_plt = 0;
2081 }
2082 }
2083 else
2084 {
2085 h->plt.offset = (bfd_vma) -1;
2086 h->needs_plt = 0;
2087 }
2088
2089 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2090 requiring no TLS entry. */
2091 if (h->got.refcount > 0
2092 && bfd_link_executable (info)
2093 && h->dynindx == -1
2094 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2095 h->got.offset = (bfd_vma) -1;
2096 else if (h->got.refcount > 0)
2097 {
2098 asection *s;
2099 bfd_boolean dyn;
2100 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2101
2102 /* Make sure this symbol is output as a dynamic symbol.
2103 Undefined weak syms won't yet be marked as dynamic. */
2104 if (h->dynindx == -1
2105 && !h->forced_local)
2106 {
2107 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2108 return FALSE;
2109 }
2110
2111 s = htab->elf.sgot;
2112 h->got.offset = s->size;
2113 s->size += TILEPRO_BYTES_PER_WORD;
2114 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2115 if (tls_type == GOT_TLS_GD)
2116 s->size += TILEPRO_BYTES_PER_WORD;
2117 dyn = htab->elf.dynamic_sections_created;
2118 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2119 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2120 global. */
2121 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2122 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2123 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2124 bfd_link_pic (info),
2125 h))
2126 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2127 }
2128 else
2129 h->got.offset = (bfd_vma) -1;
2130
2131 if (h->dyn_relocs == NULL)
2132 return TRUE;
2133
2134 /* In the shared -Bsymbolic case, discard space allocated for
2135 dynamic pc-relative relocs against symbols which turn out to be
2136 defined in regular objects. For the normal shared case, discard
2137 space for pc-relative relocs that have become local due to symbol
2138 visibility changes. */
2139
2140 if (bfd_link_pic (info))
2141 {
2142 if (SYMBOL_CALLS_LOCAL (info, h))
2143 {
2144 struct elf_dyn_relocs **pp;
2145
2146 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2147 {
2148 p->count -= p->pc_count;
2149 p->pc_count = 0;
2150 if (p->count == 0)
2151 *pp = p->next;
2152 else
2153 pp = &p->next;
2154 }
2155 }
2156
2157 /* Also discard relocs on undefined weak syms with non-default
2158 visibility. */
2159 if (h->dyn_relocs != NULL
2160 && h->root.type == bfd_link_hash_undefweak)
2161 {
2162 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2163 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2164 h->dyn_relocs = NULL;
2165
2166 /* Make sure undefined weak symbols are output as a dynamic
2167 symbol in PIEs. */
2168 else if (h->dynindx == -1
2169 && !h->forced_local)
2170 {
2171 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2172 return FALSE;
2173 }
2174 }
2175 }
2176 else
2177 {
2178 /* For the non-shared case, discard space for relocs against
2179 symbols which turn out to need copy relocs or are not
2180 dynamic. */
2181
2182 if (!h->non_got_ref
2183 && ((h->def_dynamic
2184 && !h->def_regular)
2185 || (htab->elf.dynamic_sections_created
2186 && (h->root.type == bfd_link_hash_undefweak
2187 || h->root.type == bfd_link_hash_undefined))))
2188 {
2189 /* Make sure this symbol is output as a dynamic symbol.
2190 Undefined weak syms won't yet be marked as dynamic. */
2191 if (h->dynindx == -1
2192 && !h->forced_local)
2193 {
2194 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2195 return FALSE;
2196 }
2197
2198 /* If that succeeded, we know we'll be keeping all the
2199 relocs. */
2200 if (h->dynindx != -1)
2201 goto keep;
2202 }
2203
2204 h->dyn_relocs = NULL;
2205
2206 keep: ;
2207 }
2208
2209 /* Finally, allocate space. */
2210 for (p = h->dyn_relocs; p != NULL; p = p->next)
2211 {
2212 asection *sreloc = elf_section_data (p->sec)->sreloc;
2213 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2214 }
2215
2216 return TRUE;
2217 }
2218
2219 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2220 read-only sections. */
2221
2222 static bfd_boolean
2223 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2224 {
2225 asection *sec;
2226
2227 if (h->root.type == bfd_link_hash_indirect)
2228 return TRUE;
2229
2230 sec = readonly_dynrelocs (h);
2231 if (sec != NULL)
2232 {
2233 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2234
2235 info->flags |= DF_TEXTREL;
2236 info->callbacks->minfo
2237 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2238 sec->owner, h->root.root.string, sec);
2239
2240 /* Not an error, just cut short the traversal. */
2241 return FALSE;
2242 }
2243 return TRUE;
2244 }
2245
2246 /* Return true if the dynamic symbol for a given section should be
2247 omitted when creating a shared library. */
2248
2249 static bfd_boolean
2250 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2251 struct bfd_link_info *info,
2252 asection *p)
2253 {
2254 /* We keep the .got section symbol so that explicit relocations
2255 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2256 can be turned into relocations against the .got symbol. */
2257 if (strcmp (p->name, ".got") == 0)
2258 return FALSE;
2259
2260 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2261 }
2262
2263 /* Set the sizes of the dynamic sections. */
2264
2265 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2266
2267 static bfd_boolean
2268 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2269 struct bfd_link_info *info)
2270 {
2271 (void)output_bfd;
2272
2273 struct tilepro_elf_link_hash_table *htab;
2274 bfd *dynobj;
2275 asection *s;
2276 bfd *ibfd;
2277
2278 htab = tilepro_elf_hash_table (info);
2279 BFD_ASSERT (htab != NULL);
2280 dynobj = htab->elf.dynobj;
2281 BFD_ASSERT (dynobj != NULL);
2282
2283 if (elf_hash_table (info)->dynamic_sections_created)
2284 {
2285 /* Set the contents of the .interp section to the interpreter. */
2286 if (bfd_link_executable (info) && !info->nointerp)
2287 {
2288 s = bfd_get_linker_section (dynobj, ".interp");
2289 BFD_ASSERT (s != NULL);
2290 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2291 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2292 }
2293 }
2294
2295 /* Set up .got offsets for local syms, and space for local dynamic
2296 relocs. */
2297 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2298 {
2299 bfd_signed_vma *local_got;
2300 bfd_signed_vma *end_local_got;
2301 char *local_tls_type;
2302 bfd_size_type locsymcount;
2303 Elf_Internal_Shdr *symtab_hdr;
2304 asection *srel;
2305
2306 if (! is_tilepro_elf (ibfd))
2307 continue;
2308
2309 for (s = ibfd->sections; s != NULL; s = s->next)
2310 {
2311 struct elf_dyn_relocs *p;
2312
2313 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2314 {
2315 if (!bfd_is_abs_section (p->sec)
2316 && bfd_is_abs_section (p->sec->output_section))
2317 {
2318 /* Input section has been discarded, either because
2319 it is a copy of a linkonce section or due to
2320 linker script /DISCARD/, so we'll be discarding
2321 the relocs too. */
2322 }
2323 else if (p->count != 0)
2324 {
2325 srel = elf_section_data (p->sec)->sreloc;
2326 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2327 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2328 {
2329 info->flags |= DF_TEXTREL;
2330
2331 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2332 p->sec->owner, p->sec);
2333 }
2334 }
2335 }
2336 }
2337
2338 local_got = elf_local_got_refcounts (ibfd);
2339 if (!local_got)
2340 continue;
2341
2342 symtab_hdr = &elf_symtab_hdr (ibfd);
2343 locsymcount = symtab_hdr->sh_info;
2344 end_local_got = local_got + locsymcount;
2345 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2346 s = htab->elf.sgot;
2347 srel = htab->elf.srelgot;
2348 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2349 {
2350 if (*local_got > 0)
2351 {
2352 *local_got = s->size;
2353 s->size += TILEPRO_BYTES_PER_WORD;
2354 if (*local_tls_type == GOT_TLS_GD)
2355 s->size += TILEPRO_BYTES_PER_WORD;
2356 if (bfd_link_pic (info)
2357 || *local_tls_type == GOT_TLS_GD
2358 || *local_tls_type == GOT_TLS_IE)
2359 srel->size += TILEPRO_ELF_RELA_BYTES;
2360 }
2361 else
2362 *local_got = (bfd_vma) -1;
2363 }
2364 }
2365
2366 /* Allocate global sym .plt and .got entries, and space for global
2367 sym dynamic relocs. */
2368 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2369
2370 if (elf_hash_table (info)->dynamic_sections_created)
2371 {
2372 /* If the .got section is more than 0x8000 bytes, we add
2373 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2374 bit relocations have a greater chance of working. */
2375 if (htab->elf.sgot->size >= 0x8000
2376 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2377 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2378 }
2379
2380 if (htab->elf.sgotplt)
2381 {
2382 struct elf_link_hash_entry *got;
2383 got = elf_link_hash_lookup (elf_hash_table (info),
2384 "_GLOBAL_OFFSET_TABLE_",
2385 FALSE, FALSE, FALSE);
2386
2387 /* Don't allocate .got.plt section if there are no GOT nor PLT
2388 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2389 if ((got == NULL
2390 || !got->ref_regular_nonweak)
2391 && (htab->elf.sgotplt->size
2392 == GOTPLT_HEADER_SIZE)
2393 && (htab->elf.splt == NULL
2394 || htab->elf.splt->size == 0)
2395 && (htab->elf.sgot == NULL
2396 || (htab->elf.sgot->size
2397 == get_elf_backend_data (output_bfd)->got_header_size)))
2398 htab->elf.sgotplt->size = 0;
2399 }
2400
2401 /* The check_relocs and adjust_dynamic_symbol entry points have
2402 determined the sizes of the various dynamic sections. Allocate
2403 memory for them. */
2404 for (s = dynobj->sections; s != NULL; s = s->next)
2405 {
2406 if ((s->flags & SEC_LINKER_CREATED) == 0)
2407 continue;
2408
2409 if (s == htab->elf.splt
2410 || s == htab->elf.sgot
2411 || s == htab->elf.sgotplt
2412 || s == htab->elf.sdynbss
2413 || s == htab->elf.sdynrelro)
2414 {
2415 /* Strip this section if we don't need it; see the
2416 comment below. */
2417 }
2418 else if (strncmp (s->name, ".rela", 5) == 0)
2419 {
2420 if (s->size != 0)
2421 {
2422 /* We use the reloc_count field as a counter if we need
2423 to copy relocs into the output file. */
2424 s->reloc_count = 0;
2425 }
2426 }
2427 else
2428 {
2429 /* It's not one of our sections. */
2430 continue;
2431 }
2432
2433 if (s->size == 0)
2434 {
2435 /* If we don't need this section, strip it from the
2436 output file. This is mostly to handle .rela.bss and
2437 .rela.plt. We must create both sections in
2438 create_dynamic_sections, because they must be created
2439 before the linker maps input sections to output
2440 sections. The linker does that before
2441 adjust_dynamic_symbol is called, and it is that
2442 function which decides whether anything needs to go
2443 into these sections. */
2444 s->flags |= SEC_EXCLUDE;
2445 continue;
2446 }
2447
2448 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2449 continue;
2450
2451 /* Allocate memory for the section contents. Zero the memory
2452 for the benefit of .rela.plt, which has 4 unused entries
2453 at the beginning, and we don't want garbage. */
2454 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2455 if (s->contents == NULL)
2456 return FALSE;
2457 }
2458
2459 if (elf_hash_table (info)->dynamic_sections_created)
2460 {
2461 /* Add some entries to the .dynamic section. We fill in the
2462 values later, in tilepro_elf_finish_dynamic_sections, but we
2463 must add the entries now so that we get the correct size for
2464 the .dynamic section. The DT_DEBUG entry is filled in by the
2465 dynamic linker and used by the debugger. */
2466 #define add_dynamic_entry(TAG, VAL) \
2467 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2468
2469 if (bfd_link_executable (info))
2470 {
2471 if (!add_dynamic_entry (DT_DEBUG, 0))
2472 return FALSE;
2473 }
2474
2475 if (htab->elf.srelplt->size != 0)
2476 {
2477 if (!add_dynamic_entry (DT_PLTGOT, 0)
2478 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2479 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2480 || !add_dynamic_entry (DT_JMPREL, 0))
2481 return FALSE;
2482 }
2483
2484 if (!add_dynamic_entry (DT_RELA, 0)
2485 || !add_dynamic_entry (DT_RELASZ, 0)
2486 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2487 return FALSE;
2488
2489 /* If any dynamic relocs apply to a read-only section,
2490 then we need a DT_TEXTREL entry. */
2491 if ((info->flags & DF_TEXTREL) == 0)
2492 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2493
2494 if (info->flags & DF_TEXTREL)
2495 {
2496 if (!add_dynamic_entry (DT_TEXTREL, 0))
2497 return FALSE;
2498 }
2499 }
2500 #undef add_dynamic_entry
2501
2502 return TRUE;
2503 }
2504 \f
2505 /* Return the base VMA address which should be subtracted from real addresses
2506 when resolving @dtpoff relocation.
2507 This is PT_TLS segment p_vaddr. */
2508
2509 static bfd_vma
2510 dtpoff_base (struct bfd_link_info *info)
2511 {
2512 /* If tls_sec is NULL, we should have signalled an error already. */
2513 if (elf_hash_table (info)->tls_sec == NULL)
2514 return 0;
2515 return elf_hash_table (info)->tls_sec->vma;
2516 }
2517
2518 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2519
2520 static bfd_vma
2521 tpoff (struct bfd_link_info *info, bfd_vma address)
2522 {
2523 struct elf_link_hash_table *htab = elf_hash_table (info);
2524
2525 /* If tls_sec is NULL, we should have signalled an error already. */
2526 if (htab->tls_sec == NULL)
2527 return 0;
2528
2529 return (address - htab->tls_sec->vma);
2530 }
2531
2532 /* Replace the MASK bits in ADDR with those in INSN, for the next
2533 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2534
2535 static void
2536 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2537 const bfd_byte *insn)
2538 {
2539 int i;
2540 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2541 {
2542 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2543 }
2544 }
2545
2546 /* Mask to extract the bits corresponding to an instruction in a
2547 specific pipe of a bundle. */
2548 static const bfd_byte insn_mask_X1[] = {
2549 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2550 };
2551
2552 /* Mask to extract the bits corresponding to an instruction in a
2553 specific pipe of a bundle, minus the destination operand and the
2554 first source operand. */
2555 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2556 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2557 };
2558
2559 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2560 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2561 };
2562
2563 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2564 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2565 };
2566
2567 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2568 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2569 };
2570
2571 /* Mask to extract the first source operand of an instruction. */
2572 static const bfd_byte srca_mask_X0[] = {
2573 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2574 };
2575
2576 static const bfd_byte srca_mask_X1[] = {
2577 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2578 };
2579
2580 /* Various instructions synthesized to support tls references. */
2581
2582 /* move r0, r0 in the X1 pipe, used for tls le. */
2583 static const bfd_byte insn_tls_le_move_X1[] = {
2584 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2585 };
2586
2587 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2588 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2589 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2590 };
2591
2592 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2593 static const bfd_byte insn_tls_ie_lw_X1[] = {
2594 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2595 };
2596
2597 /* add r0, r0, tp in various pipes, used for tls ie. */
2598 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2599 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2600 };
2601 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2602 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2603 };
2604
2605 /* move r0, r0 in various pipes, used for tls gd. */
2606 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2607 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2608 };
2609 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2610 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2611 };
2612
2613 /* Relocate an TILEPRO ELF section.
2614
2615 The RELOCATE_SECTION function is called by the new ELF backend linker
2616 to handle the relocations for a section.
2617
2618 The relocs are always passed as Rela structures.
2619
2620 This function is responsible for adjusting the section contents as
2621 necessary, and (if generating a relocatable output file) adjusting
2622 the reloc addend as necessary.
2623
2624 This function does not have to worry about setting the reloc
2625 address or the reloc symbol index.
2626
2627 LOCAL_SYMS is a pointer to the swapped in local symbols.
2628
2629 LOCAL_SECTIONS is an array giving the section in the input file
2630 corresponding to the st_shndx field of each local symbol.
2631
2632 The global hash table entry for the global symbols can be found
2633 via elf_sym_hashes (input_bfd).
2634
2635 When generating relocatable output, this function must handle
2636 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2637 going to be the section symbol corresponding to the output
2638 section, which means that the addend must be adjusted
2639 accordingly. */
2640
2641 static bfd_boolean
2642 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2643 bfd *input_bfd, asection *input_section,
2644 bfd_byte *contents, Elf_Internal_Rela *relocs,
2645 Elf_Internal_Sym *local_syms,
2646 asection **local_sections)
2647 {
2648 struct tilepro_elf_link_hash_table *htab;
2649 Elf_Internal_Shdr *symtab_hdr;
2650 struct elf_link_hash_entry **sym_hashes;
2651 bfd_vma *local_got_offsets;
2652 bfd_vma got_base;
2653 asection *sreloc;
2654 Elf_Internal_Rela *rel;
2655 Elf_Internal_Rela *relend;
2656 int num_relocs;
2657
2658 htab = tilepro_elf_hash_table (info);
2659 BFD_ASSERT (htab != NULL);
2660 symtab_hdr = &elf_symtab_hdr (input_bfd);
2661 sym_hashes = elf_sym_hashes (input_bfd);
2662 local_got_offsets = elf_local_got_offsets (input_bfd);
2663
2664 if (elf_hash_table (info)->hgot == NULL)
2665 got_base = 0;
2666 else
2667 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2668
2669 sreloc = elf_section_data (input_section)->sreloc;
2670
2671 rel = relocs;
2672 num_relocs = input_section->reloc_count;
2673 relend = relocs + num_relocs;
2674 for (; rel < relend; rel++)
2675 {
2676 int r_type, tls_type;
2677 bfd_boolean is_tls_iele, is_tls_le;
2678 reloc_howto_type *howto;
2679 unsigned long r_symndx;
2680 struct elf_link_hash_entry *h;
2681 Elf_Internal_Sym *sym;
2682 tilepro_create_func create_func;
2683 asection *sec;
2684 bfd_vma relocation;
2685 bfd_reloc_status_type r;
2686 const char *name;
2687 bfd_vma off;
2688 bfd_boolean is_plt = FALSE;
2689 bfd_boolean resolved_to_zero;
2690 bfd_boolean unresolved_reloc;
2691
2692 r_type = ELF32_R_TYPE (rel->r_info);
2693 if (r_type == R_TILEPRO_GNU_VTINHERIT
2694 || r_type == R_TILEPRO_GNU_VTENTRY)
2695 continue;
2696
2697 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2698 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2699
2700 howto = tilepro_elf_howto_table + r_type;
2701
2702 /* This is a final link. */
2703 r_symndx = ELF32_R_SYM (rel->r_info);
2704 h = NULL;
2705 sym = NULL;
2706 sec = NULL;
2707 unresolved_reloc = FALSE;
2708 if (r_symndx < symtab_hdr->sh_info)
2709 {
2710 sym = local_syms + r_symndx;
2711 sec = local_sections[r_symndx];
2712 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2713 }
2714 else
2715 {
2716 bfd_boolean warned ATTRIBUTE_UNUSED;
2717 bfd_boolean ignored ATTRIBUTE_UNUSED;
2718
2719 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2720 r_symndx, symtab_hdr, sym_hashes,
2721 h, sec, relocation,
2722 unresolved_reloc, warned, ignored);
2723 if (warned)
2724 {
2725 /* To avoid generating warning messages about truncated
2726 relocations, set the relocation's address to be the same as
2727 the start of this section. */
2728 if (input_section->output_section != NULL)
2729 relocation = input_section->output_section->vma;
2730 else
2731 relocation = 0;
2732 }
2733 }
2734
2735 if (sec != NULL && discarded_section (sec))
2736 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2737 rel, 1, relend, howto, 0, contents);
2738
2739 if (bfd_link_relocatable (info))
2740 continue;
2741
2742 if (h != NULL)
2743 name = h->root.root.string;
2744 else
2745 {
2746 name = (bfd_elf_string_from_elf_section
2747 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2748 if (name == NULL || *name == '\0')
2749 name = bfd_section_name (sec);
2750 }
2751
2752 switch (r_type)
2753 {
2754 case R_TILEPRO_TLS_GD_CALL:
2755 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2756 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2757 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2758 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2759 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2760 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2761 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2762 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2763 tls_type = GOT_UNKNOWN;
2764 if (h == NULL && local_got_offsets)
2765 tls_type =
2766 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2767 else if (h != NULL)
2768 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2769
2770 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2771 is_tls_le = is_tls_iele && (bfd_link_executable (info)
2772 && (h == NULL || h->dynindx == -1));
2773
2774 if (r_type == R_TILEPRO_TLS_GD_CALL)
2775 {
2776 if (is_tls_le)
2777 {
2778 /* GD -> LE */
2779 tilepro_replace_insn (contents + rel->r_offset,
2780 insn_mask_X1, insn_tls_le_move_X1);
2781 continue;
2782 }
2783 else if (is_tls_iele)
2784 {
2785 /* GD -> IE */
2786 tilepro_replace_insn (contents + rel->r_offset,
2787 insn_mask_X1, insn_tls_ie_lw_X1);
2788 continue;
2789 }
2790
2791 /* GD -> GD */
2792 h = (struct elf_link_hash_entry *)
2793 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2794 FALSE, TRUE);
2795 BFD_ASSERT (h != NULL);
2796 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2797 howto = tilepro_elf_howto_table + r_type;
2798 }
2799 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2800 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2801 {
2802 if (is_tls_le)
2803 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2804 insn_tls_le_move_zero_X0X1);
2805 }
2806 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2807 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2808 {
2809 if (is_tls_le)
2810 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2811 insn_tls_le_move_zero_X0X1);
2812 }
2813 else
2814 {
2815 const bfd_byte *mask = NULL;
2816 const bfd_byte *add_insn = NULL;
2817
2818 switch (r_type)
2819 {
2820 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2821 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2822 : insn_tls_gd_add_X0X1;
2823 mask = insn_mask_X0_no_dest_no_srca;
2824 break;
2825 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2826 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2827 : insn_tls_gd_add_X0X1;
2828 mask = insn_mask_X1_no_dest_no_srca;
2829 break;
2830 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2831 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2832 : insn_tls_gd_add_Y0Y1;
2833 mask = insn_mask_Y0_no_dest_no_srca;
2834 break;
2835 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2836 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2837 : insn_tls_gd_add_Y0Y1;
2838 mask = insn_mask_Y1_no_dest_no_srca;
2839 break;
2840 }
2841
2842 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2843
2844 continue;
2845 }
2846 break;
2847 case R_TILEPRO_TLS_IE_LOAD:
2848 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
2849 /* IE -> LE */
2850 tilepro_replace_insn (contents + rel->r_offset,
2851 insn_mask_X1_no_dest_no_srca,
2852 insn_tls_le_move_X1);
2853 else
2854 /* IE -> IE */
2855 tilepro_replace_insn (contents + rel->r_offset,
2856 insn_mask_X1_no_dest_no_srca,
2857 insn_tls_ie_lw_X1);
2858 continue;
2859 break;
2860 default:
2861 break;
2862 }
2863
2864 resolved_to_zero = (h != NULL
2865 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2866
2867 switch (r_type)
2868 {
2869 case R_TILEPRO_IMM16_X0_GOT:
2870 case R_TILEPRO_IMM16_X1_GOT:
2871 case R_TILEPRO_IMM16_X0_GOT_LO:
2872 case R_TILEPRO_IMM16_X1_GOT_LO:
2873 case R_TILEPRO_IMM16_X0_GOT_HI:
2874 case R_TILEPRO_IMM16_X1_GOT_HI:
2875 case R_TILEPRO_IMM16_X0_GOT_HA:
2876 case R_TILEPRO_IMM16_X1_GOT_HA:
2877 /* Relocation is to the entry for this symbol in the global
2878 offset table. */
2879 if (htab->elf.sgot == NULL)
2880 abort ();
2881
2882 if (h != NULL)
2883 {
2884 bfd_boolean dyn;
2885
2886 off = h->got.offset;
2887 BFD_ASSERT (off != (bfd_vma) -1);
2888 dyn = elf_hash_table (info)->dynamic_sections_created;
2889
2890 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2891 bfd_link_pic (info),
2892 h)
2893 || (bfd_link_pic (info)
2894 && SYMBOL_REFERENCES_LOCAL (info, h)))
2895 {
2896 /* This is actually a static link, or it is a
2897 -Bsymbolic link and the symbol is defined
2898 locally, or the symbol was forced to be local
2899 because of a version file. We must initialize
2900 this entry in the global offset table. Since the
2901 offset must always be a multiple
2902 of 4 for 32-bit, we use the least significant bit
2903 to record whether we have initialized it already.
2904
2905 When doing a dynamic link, we create a .rela.got
2906 relocation entry to initialize the value. This
2907 is done in the finish_dynamic_symbol routine. */
2908 if ((off & 1) != 0)
2909 off &= ~1;
2910 else
2911 {
2912 bfd_put_32 (output_bfd, relocation,
2913 htab->elf.sgot->contents + off);
2914 h->got.offset |= 1;
2915 }
2916 }
2917 else
2918 unresolved_reloc = FALSE;
2919 }
2920 else
2921 {
2922 BFD_ASSERT (local_got_offsets != NULL
2923 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2924
2925 off = local_got_offsets[r_symndx];
2926
2927 /* The offset must always be a multiple of 4 on 32-bit.
2928 We use the least significant bit to record
2929 whether we have already processed this entry. */
2930 if ((off & 1) != 0)
2931 off &= ~1;
2932 else
2933 {
2934 if (bfd_link_pic (info))
2935 {
2936 asection *s;
2937 Elf_Internal_Rela outrel;
2938
2939 /* We need to generate a R_TILEPRO_RELATIVE reloc
2940 for the dynamic linker. */
2941 s = htab->elf.srelgot;
2942 BFD_ASSERT (s != NULL);
2943
2944 outrel.r_offset = (htab->elf.sgot->output_section->vma
2945 + htab->elf.sgot->output_offset
2946 + off);
2947 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2948 outrel.r_addend = relocation;
2949 relocation = 0;
2950 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2951 }
2952
2953 bfd_put_32 (output_bfd, relocation,
2954 htab->elf.sgot->contents + off);
2955 local_got_offsets[r_symndx] |= 1;
2956 }
2957 }
2958 relocation = off - got_base;
2959 break;
2960
2961 case R_TILEPRO_JOFFLONG_X1_PLT:
2962 /* Relocation is to the entry for this symbol in the
2963 procedure linkage table. */
2964 BFD_ASSERT (h != NULL);
2965
2966 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2967 {
2968 /* We didn't make a PLT entry for this symbol. This
2969 happens when statically linking PIC code, or when
2970 using -Bsymbolic. */
2971 break;
2972 }
2973
2974 relocation = (htab->elf.splt->output_section->vma
2975 + htab->elf.splt->output_offset
2976 + h->plt.offset);
2977 unresolved_reloc = FALSE;
2978 break;
2979
2980 case R_TILEPRO_32_PCREL:
2981 case R_TILEPRO_16_PCREL:
2982 case R_TILEPRO_8_PCREL:
2983 case R_TILEPRO_IMM16_X0_PCREL:
2984 case R_TILEPRO_IMM16_X1_PCREL:
2985 case R_TILEPRO_IMM16_X0_LO_PCREL:
2986 case R_TILEPRO_IMM16_X1_LO_PCREL:
2987 case R_TILEPRO_IMM16_X0_HI_PCREL:
2988 case R_TILEPRO_IMM16_X1_HI_PCREL:
2989 case R_TILEPRO_IMM16_X0_HA_PCREL:
2990 case R_TILEPRO_IMM16_X1_HA_PCREL:
2991 if (h != NULL
2992 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2993 break;
2994 /* Fall through. */
2995 case R_TILEPRO_32:
2996 case R_TILEPRO_16:
2997 case R_TILEPRO_8:
2998 case R_TILEPRO_LO16:
2999 case R_TILEPRO_HI16:
3000 case R_TILEPRO_HA16:
3001 case R_TILEPRO_COPY:
3002 case R_TILEPRO_GLOB_DAT:
3003 case R_TILEPRO_JMP_SLOT:
3004 case R_TILEPRO_RELATIVE:
3005 case R_TILEPRO_BROFF_X1:
3006 case R_TILEPRO_JOFFLONG_X1:
3007 case R_TILEPRO_IMM8_X0:
3008 case R_TILEPRO_IMM8_Y0:
3009 case R_TILEPRO_IMM8_X1:
3010 case R_TILEPRO_IMM8_Y1:
3011 case R_TILEPRO_DEST_IMM8_X1:
3012 case R_TILEPRO_MT_IMM15_X1:
3013 case R_TILEPRO_MF_IMM15_X1:
3014 case R_TILEPRO_IMM16_X0:
3015 case R_TILEPRO_IMM16_X1:
3016 case R_TILEPRO_IMM16_X0_LO:
3017 case R_TILEPRO_IMM16_X1_LO:
3018 case R_TILEPRO_IMM16_X0_HI:
3019 case R_TILEPRO_IMM16_X1_HI:
3020 case R_TILEPRO_IMM16_X0_HA:
3021 case R_TILEPRO_IMM16_X1_HA:
3022 case R_TILEPRO_MMSTART_X0:
3023 case R_TILEPRO_MMEND_X0:
3024 case R_TILEPRO_MMSTART_X1:
3025 case R_TILEPRO_MMEND_X1:
3026 case R_TILEPRO_SHAMT_X0:
3027 case R_TILEPRO_SHAMT_X1:
3028 case R_TILEPRO_SHAMT_Y0:
3029 case R_TILEPRO_SHAMT_Y1:
3030 if ((input_section->flags & SEC_ALLOC) == 0)
3031 break;
3032
3033 if ((bfd_link_pic (info)
3034 && (h == NULL
3035 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3036 && !resolved_to_zero)
3037 || h->root.type != bfd_link_hash_undefweak)
3038 && (! howto->pc_relative
3039 || !SYMBOL_CALLS_LOCAL (info, h)))
3040 || (!bfd_link_pic (info)
3041 && h != NULL
3042 && h->dynindx != -1
3043 && !h->non_got_ref
3044 && ((h->def_dynamic
3045 && !h->def_regular)
3046 || h->root.type == bfd_link_hash_undefweak
3047 || h->root.type == bfd_link_hash_undefined)))
3048 {
3049 Elf_Internal_Rela outrel;
3050 bfd_boolean skip, relocate = FALSE;
3051
3052 /* When generating a shared object, these relocations
3053 are copied into the output file to be resolved at run
3054 time. */
3055
3056 BFD_ASSERT (sreloc != NULL);
3057
3058 skip = FALSE;
3059
3060 outrel.r_offset =
3061 _bfd_elf_section_offset (output_bfd, info, input_section,
3062 rel->r_offset);
3063 if (outrel.r_offset == (bfd_vma) -1)
3064 skip = TRUE;
3065 else if (outrel.r_offset == (bfd_vma) -2)
3066 skip = TRUE, relocate = TRUE;
3067 outrel.r_offset += (input_section->output_section->vma
3068 + input_section->output_offset);
3069
3070 switch (r_type)
3071 {
3072 case R_TILEPRO_32_PCREL:
3073 case R_TILEPRO_16_PCREL:
3074 case R_TILEPRO_8_PCREL:
3075 /* If the symbol is not dynamic, we should not keep
3076 a dynamic relocation. But an .rela.* slot has been
3077 allocated for it, output R_TILEPRO_NONE.
3078 FIXME: Add code tracking needed dynamic relocs as
3079 e.g. i386 has. */
3080 if (h->dynindx == -1)
3081 skip = TRUE, relocate = TRUE;
3082 break;
3083 }
3084
3085 if (skip)
3086 memset (&outrel, 0, sizeof outrel);
3087 /* h->dynindx may be -1 if the symbol was marked to
3088 become local. */
3089 else if (h != NULL &&
3090 h->dynindx != -1
3091 && (! is_plt
3092 || !bfd_link_pic (info)
3093 || !SYMBOLIC_BIND (info, h)
3094 || !h->def_regular))
3095 {
3096 BFD_ASSERT (h->dynindx != -1);
3097 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3098 outrel.r_addend = rel->r_addend;
3099 }
3100 else
3101 {
3102 if (r_type == R_TILEPRO_32)
3103 {
3104 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3105 outrel.r_addend = relocation + rel->r_addend;
3106 }
3107 else
3108 {
3109 long indx;
3110
3111 outrel.r_addend = relocation + rel->r_addend;
3112
3113 if (is_plt)
3114 sec = htab->elf.splt;
3115
3116 if (bfd_is_abs_section (sec))
3117 indx = 0;
3118 else if (sec == NULL || sec->owner == NULL)
3119 {
3120 bfd_set_error (bfd_error_bad_value);
3121 return FALSE;
3122 }
3123 else
3124 {
3125 asection *osec;
3126
3127 /* We are turning this relocation into one
3128 against a section symbol. It would be
3129 proper to subtract the symbol's value,
3130 osec->vma, from the emitted reloc addend,
3131 but ld.so expects buggy relocs. */
3132 osec = sec->output_section;
3133 indx = elf_section_data (osec)->dynindx;
3134
3135 if (indx == 0)
3136 {
3137 osec = htab->elf.text_index_section;
3138 indx = elf_section_data (osec)->dynindx;
3139 }
3140
3141 /* FIXME: we really should be able to link non-pic
3142 shared libraries. */
3143 if (indx == 0)
3144 {
3145 BFD_FAIL ();
3146 _bfd_error_handler
3147 (_("%pB: probably compiled without -fPIC?"),
3148 input_bfd);
3149 bfd_set_error (bfd_error_bad_value);
3150 return FALSE;
3151 }
3152 }
3153
3154 outrel.r_info = ELF32_R_INFO (indx, r_type);
3155 }
3156 }
3157
3158 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3159
3160 /* This reloc will be computed at runtime, so there's no
3161 need to do anything now. */
3162 if (! relocate)
3163 continue;
3164 }
3165 break;
3166
3167 case R_TILEPRO_IMM16_X0_TLS_LE:
3168 case R_TILEPRO_IMM16_X1_TLS_LE:
3169 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3170 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3171 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3172 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3173 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3174 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3175 if (!bfd_link_executable (info))
3176 {
3177 Elf_Internal_Rela outrel;
3178 bfd_boolean skip;
3179
3180 BFD_ASSERT (sreloc != NULL);
3181 skip = FALSE;
3182 outrel.r_offset =
3183 _bfd_elf_section_offset (output_bfd, info, input_section,
3184 rel->r_offset);
3185 if (outrel.r_offset == (bfd_vma) -1)
3186 skip = TRUE;
3187 else if (outrel.r_offset == (bfd_vma) -2)
3188 skip = TRUE;
3189 outrel.r_offset += (input_section->output_section->vma
3190 + input_section->output_offset);
3191 if (skip)
3192 memset (&outrel, 0, sizeof outrel);
3193 else
3194 {
3195 outrel.r_info = ELF32_R_INFO (0, r_type);
3196 outrel.r_addend = relocation - dtpoff_base (info)
3197 + rel->r_addend;
3198 }
3199
3200 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3201 continue;
3202 }
3203 relocation = tpoff (info, relocation);
3204 break;
3205
3206 case R_TILEPRO_IMM16_X0_TLS_GD:
3207 case R_TILEPRO_IMM16_X1_TLS_GD:
3208 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3209 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3210 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3211 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3212 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3213 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3214 case R_TILEPRO_IMM16_X0_TLS_IE:
3215 case R_TILEPRO_IMM16_X1_TLS_IE:
3216 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3217 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3218 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3219 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3220 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3221 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3222 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3223 tls_type = GOT_UNKNOWN;
3224 if (h == NULL && local_got_offsets)
3225 tls_type
3226 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3227 else if (h != NULL)
3228 {
3229 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3230 if (bfd_link_executable (info)
3231 && h->dynindx == -1
3232 && tls_type == GOT_TLS_IE)
3233 r_type = tilepro_tls_translate_to_le (r_type);
3234 }
3235 if (tls_type == GOT_TLS_IE)
3236 r_type = tilepro_tls_translate_to_ie (r_type);
3237
3238 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3239 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3240 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3241 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3242 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3243 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3244 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3245 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3246 {
3247 relocation = tpoff (info, relocation);
3248 break;
3249 }
3250
3251 if (h != NULL)
3252 {
3253 off = h->got.offset;
3254 h->got.offset |= 1;
3255 }
3256 else
3257 {
3258 BFD_ASSERT (local_got_offsets != NULL);
3259 off = local_got_offsets[r_symndx];
3260 local_got_offsets[r_symndx] |= 1;
3261 }
3262
3263 if (htab->elf.sgot == NULL)
3264 abort ();
3265
3266 if ((off & 1) != 0)
3267 off &= ~1;
3268 else
3269 {
3270 Elf_Internal_Rela outrel;
3271 int indx = 0;
3272 bfd_boolean need_relocs = FALSE;
3273
3274 if (htab->elf.srelgot == NULL)
3275 abort ();
3276
3277 if (h != NULL)
3278 {
3279 bfd_boolean dyn;
3280 dyn = htab->elf.dynamic_sections_created;
3281
3282 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3283 bfd_link_pic (info),
3284 h)
3285 && (!bfd_link_pic (info)
3286 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3287 {
3288 indx = h->dynindx;
3289 }
3290 }
3291
3292 /* The GOT entries have not been initialized yet. Do it
3293 now, and emit any relocations. */
3294 if ((bfd_link_pic (info) || indx != 0)
3295 && (h == NULL
3296 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3297 || h->root.type != bfd_link_hash_undefweak))
3298 need_relocs = TRUE;
3299
3300 switch (r_type)
3301 {
3302 case R_TILEPRO_IMM16_X0_TLS_IE:
3303 case R_TILEPRO_IMM16_X1_TLS_IE:
3304 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3305 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3306 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3307 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3308 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3309 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3310 if (need_relocs) {
3311 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3312 outrel.r_offset = (htab->elf.sgot->output_section->vma
3313 + htab->elf.sgot->output_offset + off);
3314 outrel.r_addend = 0;
3315 if (indx == 0)
3316 outrel.r_addend = relocation - dtpoff_base (info);
3317 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3318 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3319 &outrel);
3320 } else {
3321 bfd_put_32 (output_bfd, tpoff (info, relocation),
3322 htab->elf.sgot->contents + off);
3323 }
3324 break;
3325
3326 case R_TILEPRO_IMM16_X0_TLS_GD:
3327 case R_TILEPRO_IMM16_X1_TLS_GD:
3328 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3329 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3330 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3331 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3332 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3333 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3334 if (need_relocs) {
3335 outrel.r_offset = (htab->elf.sgot->output_section->vma
3336 + htab->elf.sgot->output_offset + off);
3337 outrel.r_addend = 0;
3338 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3339 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3340 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3341 &outrel);
3342 if (indx == 0)
3343 {
3344 BFD_ASSERT (! unresolved_reloc);
3345 bfd_put_32 (output_bfd,
3346 relocation - dtpoff_base (info),
3347 (htab->elf.sgot->contents + off +
3348 TILEPRO_BYTES_PER_WORD));
3349 }
3350 else
3351 {
3352 bfd_put_32 (output_bfd, 0,
3353 (htab->elf.sgot->contents + off +
3354 TILEPRO_BYTES_PER_WORD));
3355 outrel.r_info = ELF32_R_INFO (indx,
3356 R_TILEPRO_TLS_DTPOFF32);
3357 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3358 tilepro_elf_append_rela_32 (output_bfd,
3359 htab->elf.srelgot, &outrel);
3360 }
3361 }
3362
3363 else {
3364 /* If we are not emitting relocations for a
3365 general dynamic reference, then we must be in a
3366 static link or an executable link with the
3367 symbol binding locally. Mark it as belonging
3368 to module 1, the executable. */
3369 bfd_put_32 (output_bfd, 1,
3370 htab->elf.sgot->contents + off );
3371 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3372 htab->elf.sgot->contents + off +
3373 TILEPRO_BYTES_PER_WORD);
3374 }
3375 break;
3376 }
3377 }
3378
3379 if (off >= (bfd_vma) -2)
3380 abort ();
3381
3382 relocation = off - got_base;
3383 unresolved_reloc = FALSE;
3384 howto = tilepro_elf_howto_table + r_type;
3385 break;
3386
3387 default:
3388 break;
3389 }
3390
3391 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3392 because such sections are not SEC_ALLOC and thus ld.so will
3393 not process them. */
3394 if (unresolved_reloc
3395 && !((input_section->flags & SEC_DEBUGGING) != 0
3396 && h->def_dynamic)
3397 && _bfd_elf_section_offset (output_bfd, info, input_section,
3398 rel->r_offset) != (bfd_vma) -1)
3399 _bfd_error_handler
3400 /* xgettext:c-format */
3401 (_("%pB(%pA+%#" PRIx64 "): "
3402 "unresolvable %s relocation against symbol `%s'"),
3403 input_bfd,
3404 input_section,
3405 (uint64_t) rel->r_offset,
3406 howto->name,
3407 h->root.root.string);
3408
3409 r = bfd_reloc_continue;
3410
3411 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3412 * we will increment bit 16. The howto->rightshift takes care
3413 * of the rest for us. */
3414 switch (r_type)
3415 {
3416 case R_TILEPRO_HA16:
3417 case R_TILEPRO_IMM16_X0_HA:
3418 case R_TILEPRO_IMM16_X1_HA:
3419 case R_TILEPRO_IMM16_X0_HA_PCREL:
3420 case R_TILEPRO_IMM16_X1_HA_PCREL:
3421 case R_TILEPRO_IMM16_X0_GOT_HA:
3422 case R_TILEPRO_IMM16_X1_GOT_HA:
3423 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3424 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3425 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3426 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3427 relocation += 0x8000;
3428 break;
3429 }
3430
3431 /* Get the operand creation function, if any. */
3432 create_func = reloc_to_create_func[r_type];
3433 if (create_func == NULL)
3434 {
3435 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3436 contents, rel->r_offset,
3437 relocation, rel->r_addend);
3438 }
3439 else
3440 {
3441 if (howto->pc_relative)
3442 {
3443 relocation -=
3444 input_section->output_section->vma + input_section->output_offset;
3445 if (howto->pcrel_offset)
3446 relocation -= rel->r_offset;
3447 }
3448
3449 bfd_byte *data;
3450
3451 /* Add the relocation addend if any to the final target value */
3452 relocation += rel->r_addend;
3453
3454 /* Do basic range checking */
3455 r = bfd_check_overflow (howto->complain_on_overflow,
3456 howto->bitsize,
3457 howto->rightshift,
3458 32,
3459 relocation);
3460
3461 /*
3462 * Write the relocated value out into the raw section data.
3463 * Don't put a relocation out in the .rela section.
3464 */
3465 tilepro_bundle_bits mask = create_func(-1);
3466 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3467
3468 /* Only touch bytes while the mask is not 0, so we
3469 don't write to out of bounds memory if this is actually
3470 a 16-bit switch instruction. */
3471 for (data = contents + rel->r_offset; mask != 0; data++)
3472 {
3473 bfd_byte byte_mask = (bfd_byte)mask;
3474 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3475 mask >>= 8;
3476 value >>= 8;
3477 }
3478 }
3479
3480 if (r != bfd_reloc_ok)
3481 {
3482 const char *msg = NULL;
3483
3484 switch (r)
3485 {
3486 case bfd_reloc_overflow:
3487 (*info->callbacks->reloc_overflow)
3488 (info, (h ? &h->root : NULL), name, howto->name,
3489 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3490 break;
3491
3492 case bfd_reloc_undefined:
3493 (*info->callbacks->undefined_symbol)
3494 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3495 break;
3496
3497 case bfd_reloc_outofrange:
3498 msg = _("internal error: out of range error");
3499 break;
3500
3501 case bfd_reloc_notsupported:
3502 msg = _("internal error: unsupported relocation error");
3503 break;
3504
3505 case bfd_reloc_dangerous:
3506 msg = _("internal error: dangerous relocation");
3507 break;
3508
3509 default:
3510 msg = _("internal error: unknown error");
3511 break;
3512 }
3513
3514 if (msg)
3515 (*info->callbacks->warning) (info, msg, name, input_bfd,
3516 input_section, rel->r_offset);
3517 }
3518 }
3519
3520 return TRUE;
3521 }
3522
3523 /* Finish up dynamic symbol handling. We set the contents of various
3524 dynamic sections here. */
3525
3526 static bfd_boolean
3527 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3528 struct bfd_link_info *info,
3529 struct elf_link_hash_entry *h,
3530 Elf_Internal_Sym *sym)
3531 {
3532 struct tilepro_elf_link_hash_table *htab;
3533
3534 htab = tilepro_elf_hash_table (info);
3535 BFD_ASSERT (htab != NULL);
3536
3537 if (h->plt.offset != (bfd_vma) -1)
3538 {
3539 asection *splt;
3540 asection *srela;
3541 asection *sgotplt;
3542 Elf_Internal_Rela rela;
3543 bfd_byte *loc;
3544 bfd_vma r_offset;
3545
3546 int rela_index;
3547
3548 /* This symbol has an entry in the PLT. Set it up. */
3549
3550 BFD_ASSERT (h->dynindx != -1);
3551
3552 splt = htab->elf.splt;
3553 srela = htab->elf.srelplt;
3554 sgotplt = htab->elf.sgotplt;
3555
3556 if (splt == NULL || srela == NULL)
3557 abort ();
3558
3559 /* Fill in the entry in the procedure linkage table. */
3560 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3561 &r_offset);
3562
3563 /* Fill in the entry in the global offset table, which initially points
3564 to the beginning of the plt. */
3565 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3566 sgotplt->contents + r_offset);
3567
3568 /* Fill in the entry in the .rela.plt section. */
3569 rela.r_offset = (sgotplt->output_section->vma
3570 + sgotplt->output_offset
3571 + r_offset);
3572 rela.r_addend = 0;
3573 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3574
3575 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3576 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3577
3578 if (!h->def_regular)
3579 {
3580 /* Mark the symbol as undefined, rather than as defined in
3581 the .plt section. Leave the value alone. */
3582 sym->st_shndx = SHN_UNDEF;
3583 /* If the symbol is weak, we do need to clear the value.
3584 Otherwise, the PLT entry would provide a definition for
3585 the symbol even if the symbol wasn't defined anywhere,
3586 and so the symbol would never be NULL. */
3587 if (!h->ref_regular_nonweak)
3588 sym->st_value = 0;
3589 }
3590 }
3591
3592 if (h->got.offset != (bfd_vma) -1
3593 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3594 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3595 {
3596 asection *sgot;
3597 asection *srela;
3598 Elf_Internal_Rela rela;
3599
3600 /* This symbol has an entry in the GOT. Set it up. */
3601
3602 sgot = htab->elf.sgot;
3603 srela = htab->elf.srelgot;
3604 BFD_ASSERT (sgot != NULL && srela != NULL);
3605
3606 rela.r_offset = (sgot->output_section->vma
3607 + sgot->output_offset
3608 + (h->got.offset &~ (bfd_vma) 1));
3609
3610 /* If this is a -Bsymbolic link, and the symbol is defined
3611 locally, we just want to emit a RELATIVE reloc. Likewise if
3612 the symbol was forced to be local because of a version file.
3613 The entry in the global offset table will already have been
3614 initialized in the relocate_section function. */
3615 if (bfd_link_pic (info)
3616 && (info->symbolic || h->dynindx == -1)
3617 && h->def_regular)
3618 {
3619 asection *sec = h->root.u.def.section;
3620 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3621 rela.r_addend = (h->root.u.def.value
3622 + sec->output_section->vma
3623 + sec->output_offset);
3624 }
3625 else
3626 {
3627 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3628 rela.r_addend = 0;
3629 }
3630
3631 bfd_put_32 (output_bfd, 0,
3632 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3633 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3634 }
3635
3636 if (h->needs_copy)
3637 {
3638 asection *s;
3639 Elf_Internal_Rela rela;
3640
3641 /* This symbols needs a copy reloc. Set it up. */
3642 BFD_ASSERT (h->dynindx != -1);
3643
3644 rela.r_offset = (h->root.u.def.value
3645 + h->root.u.def.section->output_section->vma
3646 + h->root.u.def.section->output_offset);
3647 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3648 rela.r_addend = 0;
3649 if (h->root.u.def.section == htab->elf.sdynrelro)
3650 s = htab->elf.sreldynrelro;
3651 else
3652 s = htab->elf.srelbss;
3653 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3654 }
3655
3656 /* Mark some specially defined symbols as absolute. */
3657 if (h == htab->elf.hdynamic
3658 || (h == htab->elf.hgot || h == htab->elf.hplt))
3659 sym->st_shndx = SHN_ABS;
3660
3661 return TRUE;
3662 }
3663
3664 /* Finish up the dynamic sections. */
3665
3666 static bfd_boolean
3667 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3668 bfd *dynobj, asection *sdyn,
3669 asection *splt ATTRIBUTE_UNUSED)
3670 {
3671 Elf32_External_Dyn *dyncon, *dynconend;
3672 struct tilepro_elf_link_hash_table *htab;
3673
3674 htab = tilepro_elf_hash_table (info);
3675 BFD_ASSERT (htab != NULL);
3676 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3677 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3678 for (; dyncon < dynconend; dyncon++)
3679 {
3680 Elf_Internal_Dyn dyn;
3681 asection *s;
3682
3683 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3684
3685 switch (dyn.d_tag)
3686 {
3687 case DT_PLTGOT:
3688 s = htab->elf.sgotplt;
3689 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3690 break;
3691 case DT_JMPREL:
3692 s = htab->elf.srelplt;
3693 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3694 break;
3695 case DT_PLTRELSZ:
3696 s = htab->elf.srelplt;
3697 dyn.d_un.d_val = s->size;
3698 break;
3699 default:
3700 continue;
3701 }
3702
3703 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3704 }
3705 return TRUE;
3706 }
3707
3708 static bfd_boolean
3709 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3710 struct bfd_link_info *info)
3711 {
3712 bfd *dynobj;
3713 asection *sdyn;
3714 struct tilepro_elf_link_hash_table *htab;
3715
3716 htab = tilepro_elf_hash_table (info);
3717 BFD_ASSERT (htab != NULL);
3718 dynobj = htab->elf.dynobj;
3719
3720 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3721
3722 if (elf_hash_table (info)->dynamic_sections_created)
3723 {
3724 asection *splt;
3725 bfd_boolean ret;
3726
3727 splt = htab->elf.splt;
3728 BFD_ASSERT (splt != NULL && sdyn != NULL);
3729
3730 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3731
3732 if (!ret)
3733 return ret;
3734
3735 /* Fill in the first entry in the procedure linkage table. */
3736 if (splt->size > 0)
3737 {
3738 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3739 memset (splt->contents + PLT_HEADER_SIZE, 0,
3740 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3741 }
3742
3743 if (elf_section_data (splt->output_section) != NULL)
3744 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3745 = PLT_ENTRY_SIZE;
3746 }
3747
3748 if (htab->elf.sgotplt)
3749 {
3750 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3751 {
3752 _bfd_error_handler
3753 (_("discarded output section: `%pA'"), htab->elf.sgotplt);
3754 return FALSE;
3755 }
3756
3757 if (htab->elf.sgotplt->size > 0)
3758 {
3759 /* Write the first two entries in .got.plt, needed for the dynamic
3760 linker. */
3761 bfd_put_32 (output_bfd, (bfd_vma) -1,
3762 htab->elf.sgotplt->contents);
3763 bfd_put_32 (output_bfd, (bfd_vma) 0,
3764 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3765 }
3766
3767 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3768 = GOT_ENTRY_SIZE;
3769 }
3770
3771 if (htab->elf.sgot)
3772 {
3773 if (htab->elf.sgot->size > 0)
3774 {
3775 /* Set the first entry in the global offset table to the address of
3776 the dynamic section. */
3777 bfd_vma val = (sdyn ?
3778 sdyn->output_section->vma + sdyn->output_offset :
3779 0);
3780 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3781 }
3782
3783 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3784 = GOT_ENTRY_SIZE;
3785 }
3786
3787 return TRUE;
3788 }
3789
3790 \f
3791
3792 /* Return address for Ith PLT stub in section PLT, for relocation REL
3793 or (bfd_vma) -1 if it should not be included. */
3794
3795 static bfd_vma
3796 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3797 const arelent *rel ATTRIBUTE_UNUSED)
3798 {
3799 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3800 }
3801
3802 static enum elf_reloc_type_class
3803 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3804 const asection *rel_sec ATTRIBUTE_UNUSED,
3805 const Elf_Internal_Rela *rela)
3806 {
3807 switch ((int) ELF32_R_TYPE (rela->r_info))
3808 {
3809 case R_TILEPRO_RELATIVE:
3810 return reloc_class_relative;
3811 case R_TILEPRO_JMP_SLOT:
3812 return reloc_class_plt;
3813 case R_TILEPRO_COPY:
3814 return reloc_class_copy;
3815 default:
3816 return reloc_class_normal;
3817 }
3818 }
3819
3820 static int
3821 tilepro_additional_program_headers (bfd *abfd,
3822 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3823 {
3824 /* Each .intrpt section specified by the user adds another PT_LOAD
3825 header since the sections are discontiguous. */
3826 static const char intrpt_sections[4][9] =
3827 {
3828 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3829 };
3830 int count = 0;
3831 int i;
3832
3833 for (i = 0; i < 4; i++)
3834 {
3835 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3836 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3837 ++count;
3838 }
3839
3840 /* Add four "padding" headers in to leave room in case a custom linker
3841 script does something fancy. Otherwise ld complains that it ran
3842 out of program headers and refuses to link. */
3843 count += 4;
3844
3845 return count;
3846 }
3847
3848 #define ELF_ARCH bfd_arch_tilepro
3849 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3850 #define ELF_MACHINE_CODE EM_TILEPRO
3851 #define ELF_MAXPAGESIZE 0x10000
3852 #define ELF_COMMONPAGESIZE 0x10000
3853
3854 #define TARGET_LITTLE_SYM tilepro_elf32_vec
3855 #define TARGET_LITTLE_NAME "elf32-tilepro"
3856
3857 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3858
3859 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3860 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3861 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3862
3863 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3864 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3865 #define elf_backend_check_relocs tilepro_elf_check_relocs
3866 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3867 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3868 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3869 #define elf_backend_relocate_section tilepro_elf_relocate_section
3870 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3871 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3872 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3873 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
3874 #define elf_info_to_howto_rel NULL
3875 #define elf_info_to_howto tilepro_info_to_howto_rela
3876 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
3877 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
3878 #define elf_backend_additional_program_headers tilepro_additional_program_headers
3879
3880 #define bfd_elf32_mkobject tilepro_elf_mkobject
3881
3882 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3883
3884 #define elf_backend_can_gc_sections 1
3885 #define elf_backend_can_refcount 1
3886 #define elf_backend_want_got_plt 1
3887 #define elf_backend_plt_readonly 1
3888 /* Align PLT mod 64 byte L2 line size. */
3889 #define elf_backend_plt_alignment 6
3890 #define elf_backend_want_plt_sym 1
3891 #define elf_backend_got_header_size GOT_ENTRY_SIZE
3892 #define elf_backend_want_dynrelro 1
3893 #define elf_backend_rela_normal 1
3894 #define elf_backend_default_execstack 0
3895
3896 #include "elf32-target.h"
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