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Work around GCC 6.3.1 bug
[binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2017 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 /* The TILEPro linker needs to keep track of the number of relocs that it
683 decides to copy as dynamic relocs in check_relocs for each symbol.
684 This is so that it can later discard them if they are found to be
685 unnecessary. We store the information in a field extending the
686 regular ELF linker hash table. */
687
688 struct tilepro_elf_dyn_relocs
689 {
690 struct tilepro_elf_dyn_relocs *next;
691
692 /* The input section of the reloc. */
693 asection *sec;
694
695 /* Total number of relocs copied for the input section. */
696 bfd_size_type count;
697
698 /* Number of pc-relative relocs copied for the input section. */
699 bfd_size_type pc_count;
700 };
701
702 /* TILEPRO ELF linker hash entry. */
703
704 struct tilepro_elf_link_hash_entry
705 {
706 struct elf_link_hash_entry elf;
707
708 /* Track dynamic relocs copied for this symbol. */
709 struct tilepro_elf_dyn_relocs *dyn_relocs;
710
711 #define GOT_UNKNOWN 0
712 #define GOT_NORMAL 1
713 #define GOT_TLS_GD 2
714 #define GOT_TLS_IE 4
715 unsigned char tls_type;
716 };
717
718 #define tilepro_elf_hash_entry(ent) \
719 ((struct tilepro_elf_link_hash_entry *)(ent))
720
721 struct _bfd_tilepro_elf_obj_tdata
722 {
723 struct elf_obj_tdata root;
724
725 /* tls_type for each local got entry. */
726 char *local_got_tls_type;
727 };
728
729 #define _bfd_tilepro_elf_tdata(abfd) \
730 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
731
732 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
733 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
734
735 #define is_tilepro_elf(bfd) \
736 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
737 && elf_tdata (bfd) != NULL \
738 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
739
740 /* Allocate TILEPro ELF private object data. */
741
742 static bfd_boolean
743 tilepro_elf_mkobject (bfd *abfd)
744 {
745 return bfd_elf_allocate_object (abfd,
746 sizeof (struct _bfd_tilepro_elf_obj_tdata),
747 TILEPRO_ELF_DATA);
748 }
749
750 #include "elf/common.h"
751 #include "elf/internal.h"
752
753 struct tilepro_elf_link_hash_table
754 {
755 struct elf_link_hash_table elf;
756
757 /* Small local sym to section mapping cache. */
758 struct sym_cache sym_cache;
759 };
760
761 /* Get the Tilepro ELF linker hash table from a link_info structure. */
762 #define tilepro_elf_hash_table(p) \
763 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
764 == TILEPRO_ELF_DATA \
765 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
766
767 static reloc_howto_type *
768 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
769 bfd_reloc_code_real_type code)
770 {
771 unsigned int i;
772
773 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
774 {
775 const reloc_map * entry;
776
777 entry = tilepro_reloc_map + i;
778
779 if (entry->bfd_reloc_val == code)
780 return entry->table + (entry->tilepro_reloc_val
781 - entry->table[0].type);
782 }
783
784 return NULL;
785 }
786
787 static reloc_howto_type *
788 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
789 const char *r_name)
790 {
791 unsigned int i;
792
793 for (i = 0;
794 i < (sizeof (tilepro_elf_howto_table)
795 / sizeof (tilepro_elf_howto_table[0]));
796 i++)
797 if (tilepro_elf_howto_table[i].name != NULL
798 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
799 return &tilepro_elf_howto_table[i];
800
801 return NULL;
802 }
803
804 /* Set the howto pointer for an TILEPro ELF reloc. */
805
806 static void
807 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
808 arelent * cache_ptr,
809 Elf_Internal_Rela * dst)
810 {
811 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
812
813 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
814 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
815 else if (r_type - R_TILEPRO_GNU_VTINHERIT
816 <= (unsigned int) R_TILEPRO_GNU_VTENTRY)
817 cache_ptr->howto
818 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
819 else
820 abort ();
821 }
822
823 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
824
825 static const tilepro_create_func reloc_to_create_func[] =
826 {
827 /* The first fourteen relocation types don't correspond to operands */
828 NULL,
829 NULL,
830 NULL,
831 NULL,
832 NULL,
833 NULL,
834 NULL,
835 NULL,
836 NULL,
837 NULL,
838 NULL,
839 NULL,
840 NULL,
841 NULL,
842
843 /* The remaining relocations are used for immediate operands */
844 create_BrOff_X1,
845 create_JOffLong_X1,
846 create_JOffLong_X1,
847 create_Imm8_X0,
848 create_Imm8_Y0,
849 create_Imm8_X1,
850 create_Imm8_Y1,
851 create_MT_Imm15_X1,
852 create_MF_Imm15_X1,
853 create_Imm16_X0,
854 create_Imm16_X1,
855 create_Imm16_X0,
856 create_Imm16_X1,
857 create_Imm16_X0,
858 create_Imm16_X1,
859 create_Imm16_X0,
860 create_Imm16_X1,
861 create_Imm16_X0,
862 create_Imm16_X1,
863 create_Imm16_X0,
864 create_Imm16_X1,
865 create_Imm16_X0,
866 create_Imm16_X1,
867 create_Imm16_X0,
868 create_Imm16_X1,
869 create_Imm16_X0,
870 create_Imm16_X1,
871 create_Imm16_X0,
872 create_Imm16_X1,
873 create_Imm16_X0,
874 create_Imm16_X1,
875 create_Imm16_X0,
876 create_Imm16_X1,
877 create_MMStart_X0,
878 create_MMEnd_X0,
879 create_MMStart_X1,
880 create_MMEnd_X1,
881 create_ShAmt_X0,
882 create_ShAmt_X1,
883 create_ShAmt_Y0,
884 create_ShAmt_Y1,
885
886 create_Dest_Imm8_X1,
887 NULL,
888 NULL,
889 NULL,
890 NULL,
891 NULL,
892 NULL,
893 NULL,
894 NULL,
895 NULL,
896 NULL,
897
898 create_Imm16_X0,
899 create_Imm16_X1,
900 create_Imm16_X0,
901 create_Imm16_X1,
902 create_Imm16_X0,
903 create_Imm16_X1,
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 create_Imm16_X0,
913 create_Imm16_X1,
914
915 NULL,
916 NULL,
917 NULL,
918
919 create_Imm16_X0,
920 create_Imm16_X1,
921 create_Imm16_X0,
922 create_Imm16_X1,
923 create_Imm16_X0,
924 create_Imm16_X1,
925 create_Imm16_X0,
926 create_Imm16_X1,
927 };
928
929 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
930
931 /* Support for core dump NOTE sections. */
932
933 static bfd_boolean
934 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
935 {
936 int offset;
937 size_t size;
938
939 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
940 return FALSE;
941
942 /* pr_cursig */
943 elf_tdata (abfd)->core->signal =
944 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
945
946 /* pr_pid */
947 elf_tdata (abfd)->core->pid =
948 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
949
950 /* pr_reg */
951 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
952 size = TILEPRO_GREGSET_T_SIZE;
953
954 /* Make a ".reg/999" section. */
955 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
956 size, note->descpos + offset);
957 }
958
959 static bfd_boolean
960 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
961 {
962 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
963 return FALSE;
964
965 elf_tdata (abfd)->core->program
966 = _bfd_elfcore_strndup (abfd,
967 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
968 16);
969 elf_tdata (abfd)->core->command
970 = _bfd_elfcore_strndup (abfd,
971 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
972 ELF_PR_PSARGS_SIZE);
973
974
975 /* Note that for some reason, a spurious space is tacked
976 onto the end of the args in some (at least one anyway)
977 implementations, so strip it off if it exists. */
978 {
979 char *command = elf_tdata (abfd)->core->command;
980 int n = strlen (command);
981
982 if (0 < n && command[n - 1] == ' ')
983 command[n - 1] = '\0';
984 }
985
986 return TRUE;
987 }
988
989
990 static void
991 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
992 {
993 Elf32_External_Rela *loc32;
994
995 loc32 = (Elf32_External_Rela *) s->contents;
996 loc32 += s->reloc_count++;
997 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
998 }
999
1000 /* PLT/GOT stuff */
1001
1002 /* The procedure linkage table starts with the following header:
1003
1004 {
1005 rli r29, r29, 16
1006 lwadd r28, r27, 4
1007 }
1008 lw r27, r27
1009 {
1010 info 10 ## SP not offset, return PC in LR
1011 jr r27
1012 }
1013
1014 Subsequent entries are the following, jumping to the header at the end:
1015
1016 lnk r28
1017 1:
1018 {
1019 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1020 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1021 }
1022 {
1023 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1024 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1025 }
1026 {
1027 auli r29, zero, MY_PLT_INDEX
1028 lw r28, r28
1029 }
1030 {
1031 info 10 ## SP not offset, return PC in LR
1032 jr r28
1033 }
1034
1035 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1036 16 bits as an unsigned offset; if we use the low bits we would get an
1037 unwanted sign extension. The PLT header then rotates the index to get the
1038 right value, before calling the resolution routine. This computation can
1039 fit in unused bundle slots so it's free.
1040
1041 This code sequence lets the code at at the start of the PLT determine
1042 which PLT entry was executed by examining 'r29'.
1043
1044 Note that MY_PLT_INDEX skips over the header entries, so the first
1045 actual jump table entry has index zero.
1046 */
1047
1048 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1049 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1050
1051 #define PLT_HEADER_SIZE \
1052 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1053 #define PLT_ENTRY_SIZE \
1054 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1055
1056 /* The size in bytes of an entry in the global offset table. */
1057
1058 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1059
1060 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1061
1062
1063 static const bfd_byte
1064 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1065 {
1066 0x5d, 0x07, 0x03, 0x70,
1067 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1068 0x00, 0x50, 0xba, 0x6d,
1069 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1070 0xff, 0xaf, 0x10, 0x50,
1071 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1072 };
1073
1074 static const bfd_byte
1075 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1076 {
1077 0x00, 0x50, 0x16, 0x70,
1078 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1079 0x1c, 0x07, 0x00, 0xa0,
1080 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1081 0xdd, 0x0f, 0x00, 0x30,
1082 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1083 0xff, 0xaf, 0x10, 0x50,
1084 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1085 0x00, 0x00, 0x00, 0x00,
1086 0x00, 0x00, 0x00, 0x00,
1087 };
1088
1089 static const bfd_byte
1090 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1091 {
1092 0x00, 0x50, 0x16, 0x70,
1093 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1094 0x1c, 0x07, 0x00, 0xb0,
1095 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1096 0x1c, 0x07, 0x00, 0xa0,
1097 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1098 0xdd, 0x0f, 0x00, 0x30,
1099 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1100 0xff, 0xaf, 0x10, 0x50,
1101 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1102 };
1103
1104 static bfd_vma
1105 tilepro_ha16(bfd_vma vma)
1106 {
1107 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1108 }
1109
1110 static int
1111 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1112 bfd_vma *r_offset)
1113 {
1114 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1115 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1116 tilepro_bundle_bits *pc;
1117
1118 /* Compute the distance from the got entry to the lnk. */
1119 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1120 + sgotplt->output_offset
1121 + got_offset
1122 - splt->output_section->vma
1123 - splt->output_offset
1124 - offset
1125 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1126
1127 /* Compute the distance to GOTPLT[0]. */
1128 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1129
1130 /* Check whether we can use the short plt entry with 16-bit offset. */
1131 bfd_boolean short_plt_entry =
1132 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1133
1134 /* Copy the plt entry template. */
1135 memcpy (splt->contents + offset,
1136 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1137 PLT_ENTRY_SIZE);
1138
1139 /* Write the immediate offsets. */
1140 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1141 pc++;
1142
1143 if (!short_plt_entry)
1144 {
1145 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1146 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1147 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1148 }
1149
1150 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1151 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1152 *pc++ |= create_Imm16_X0 (dist_got_entry)
1153 | create_Imm16_X1 (dist_got0);
1154
1155 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1156 *pc |= create_Imm16_X0 (plt_index);
1157
1158 /* Set the relocation offset. */
1159 *r_offset = got_offset;
1160
1161 return plt_index;
1162 }
1163
1164 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1165
1166
1167 /* Create an entry in an TILEPro ELF linker hash table. */
1168
1169 static struct bfd_hash_entry *
1170 link_hash_newfunc (struct bfd_hash_entry *entry,
1171 struct bfd_hash_table *table, const char *string)
1172 {
1173 /* Allocate the structure if it has not already been allocated by a
1174 subclass. */
1175 if (entry == NULL)
1176 {
1177 entry =
1178 bfd_hash_allocate (table,
1179 sizeof (struct tilepro_elf_link_hash_entry));
1180 if (entry == NULL)
1181 return entry;
1182 }
1183
1184 /* Call the allocation method of the superclass. */
1185 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1186 if (entry != NULL)
1187 {
1188 struct tilepro_elf_link_hash_entry *eh;
1189
1190 eh = (struct tilepro_elf_link_hash_entry *) entry;
1191 eh->dyn_relocs = NULL;
1192 eh->tls_type = GOT_UNKNOWN;
1193 }
1194
1195 return entry;
1196 }
1197
1198 /* Create a TILEPRO ELF linker hash table. */
1199
1200 static struct bfd_link_hash_table *
1201 tilepro_elf_link_hash_table_create (bfd *abfd)
1202 {
1203 struct tilepro_elf_link_hash_table *ret;
1204 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1205
1206 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1207 if (ret == NULL)
1208 return NULL;
1209
1210 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1211 sizeof (struct tilepro_elf_link_hash_entry),
1212 TILEPRO_ELF_DATA))
1213 {
1214 free (ret);
1215 return NULL;
1216 }
1217
1218 return &ret->elf.root;
1219 }
1220
1221 /* Create the .got section. */
1222
1223 static bfd_boolean
1224 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1225 {
1226 flagword flags;
1227 asection *s, *s_got;
1228 struct elf_link_hash_entry *h;
1229 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1230 struct elf_link_hash_table *htab = elf_hash_table (info);
1231
1232 /* This function may be called more than once. */
1233 if (htab->sgot != NULL)
1234 return TRUE;
1235
1236 flags = bed->dynamic_sec_flags;
1237
1238 s = bfd_make_section_with_flags (abfd,
1239 (bed->rela_plts_and_copies_p
1240 ? ".rela.got" : ".rel.got"),
1241 (bed->dynamic_sec_flags
1242 | SEC_READONLY));
1243 if (s == NULL
1244 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1245 return FALSE;
1246 htab->srelgot = s;
1247
1248 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1249 if (s == NULL
1250 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1251 return FALSE;
1252 htab->sgot = s;
1253
1254 /* The first bit of the global offset table is the header. */
1255 s->size += bed->got_header_size;
1256
1257 if (bed->want_got_plt)
1258 {
1259 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1260 if (s == NULL
1261 || !bfd_set_section_alignment (abfd, s,
1262 bed->s->log_file_align))
1263 return FALSE;
1264 htab->sgotplt = s;
1265
1266 /* Reserve room for the header. */
1267 s->size += GOTPLT_HEADER_SIZE;
1268 }
1269
1270 if (bed->want_got_sym)
1271 {
1272 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1273 section. We don't do this in the linker script because we don't want
1274 to define the symbol if we are not creating a global offset
1275 table. */
1276 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1277 "_GLOBAL_OFFSET_TABLE_");
1278 elf_hash_table (info)->hgot = h;
1279 if (h == NULL)
1280 return FALSE;
1281 }
1282
1283 return TRUE;
1284 }
1285
1286 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1287 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1288 hash table. */
1289
1290 static bfd_boolean
1291 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1292 struct bfd_link_info *info)
1293 {
1294 if (!tilepro_elf_create_got_section (dynobj, info))
1295 return FALSE;
1296
1297 return _bfd_elf_create_dynamic_sections (dynobj, info);
1298 }
1299
1300 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1301
1302 static void
1303 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1304 struct elf_link_hash_entry *dir,
1305 struct elf_link_hash_entry *ind)
1306 {
1307 struct tilepro_elf_link_hash_entry *edir, *eind;
1308
1309 edir = (struct tilepro_elf_link_hash_entry *) dir;
1310 eind = (struct tilepro_elf_link_hash_entry *) ind;
1311
1312 if (eind->dyn_relocs != NULL)
1313 {
1314 if (edir->dyn_relocs != NULL)
1315 {
1316 struct tilepro_elf_dyn_relocs **pp;
1317 struct tilepro_elf_dyn_relocs *p;
1318
1319 /* Add reloc counts against the indirect sym to the direct sym
1320 list. Merge any entries against the same section. */
1321 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1322 {
1323 struct tilepro_elf_dyn_relocs *q;
1324
1325 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1326 if (q->sec == p->sec)
1327 {
1328 q->pc_count += p->pc_count;
1329 q->count += p->count;
1330 *pp = p->next;
1331 break;
1332 }
1333 if (q == NULL)
1334 pp = &p->next;
1335 }
1336 *pp = edir->dyn_relocs;
1337 }
1338
1339 edir->dyn_relocs = eind->dyn_relocs;
1340 eind->dyn_relocs = NULL;
1341 }
1342
1343 if (ind->root.type == bfd_link_hash_indirect
1344 && dir->got.refcount <= 0)
1345 {
1346 edir->tls_type = eind->tls_type;
1347 eind->tls_type = GOT_UNKNOWN;
1348 }
1349 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1350 }
1351
1352 static int
1353 tilepro_tls_translate_to_le (int r_type)
1354 {
1355 switch (r_type)
1356 {
1357 case R_TILEPRO_IMM16_X0_TLS_GD:
1358 case R_TILEPRO_IMM16_X0_TLS_IE:
1359 return R_TILEPRO_IMM16_X0_TLS_LE;
1360
1361 case R_TILEPRO_IMM16_X1_TLS_GD:
1362 case R_TILEPRO_IMM16_X1_TLS_IE:
1363 return R_TILEPRO_IMM16_X1_TLS_LE;
1364
1365 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1366 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1367 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1368
1369 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1370 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1371 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1372
1373 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1374 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1375 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1376
1377 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1378 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1379 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1380
1381 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1382 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1383 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1384
1385 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1386 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1387 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1388 }
1389 return r_type;
1390 }
1391
1392 static int
1393 tilepro_tls_translate_to_ie (int r_type)
1394 {
1395 switch (r_type)
1396 {
1397 case R_TILEPRO_IMM16_X0_TLS_GD:
1398 case R_TILEPRO_IMM16_X0_TLS_IE:
1399 return R_TILEPRO_IMM16_X0_TLS_IE;
1400
1401 case R_TILEPRO_IMM16_X1_TLS_GD:
1402 case R_TILEPRO_IMM16_X1_TLS_IE:
1403 return R_TILEPRO_IMM16_X1_TLS_IE;
1404
1405 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1406 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1407 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1408
1409 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1410 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1411 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1412
1413 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1414 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1415 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1416
1417 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1418 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1419 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1420
1421 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1422 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1423 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1424
1425 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1426 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1427 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1428 }
1429 return r_type;
1430 }
1431
1432 static int
1433 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1434 int is_local)
1435 {
1436 if (bfd_link_pic (info))
1437 return r_type;
1438
1439 if (is_local)
1440 return tilepro_tls_translate_to_le (r_type);
1441 else
1442 return tilepro_tls_translate_to_ie (r_type);
1443 }
1444
1445 /* Look through the relocs for a section during the first phase, and
1446 allocate space in the global offset table or procedure linkage
1447 table. */
1448
1449 static bfd_boolean
1450 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1451 asection *sec, const Elf_Internal_Rela *relocs)
1452 {
1453 struct tilepro_elf_link_hash_table *htab;
1454 Elf_Internal_Shdr *symtab_hdr;
1455 struct elf_link_hash_entry **sym_hashes;
1456 const Elf_Internal_Rela *rel;
1457 const Elf_Internal_Rela *rel_end;
1458 asection *sreloc;
1459 int num_relocs;
1460
1461 if (bfd_link_relocatable (info))
1462 return TRUE;
1463
1464 htab = tilepro_elf_hash_table (info);
1465 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1466 sym_hashes = elf_sym_hashes (abfd);
1467
1468 sreloc = NULL;
1469
1470 num_relocs = sec->reloc_count;
1471
1472 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1473
1474 if (htab->elf.dynobj == NULL)
1475 htab->elf.dynobj = abfd;
1476
1477 rel_end = relocs + num_relocs;
1478 for (rel = relocs; rel < rel_end; rel++)
1479 {
1480 unsigned int r_type;
1481 unsigned int r_symndx;
1482 struct elf_link_hash_entry *h;
1483 int tls_type;
1484
1485 r_symndx = ELF32_R_SYM (rel->r_info);
1486 r_type = ELF32_R_TYPE (rel->r_info);
1487
1488 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1489 {
1490 /* xgettext:c-format */
1491 _bfd_error_handler (_("%B: bad symbol index: %d"),
1492 abfd, r_symndx);
1493 return FALSE;
1494 }
1495
1496 if (r_symndx < symtab_hdr->sh_info)
1497 h = NULL;
1498 else
1499 {
1500 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1501 while (h->root.type == bfd_link_hash_indirect
1502 || h->root.type == bfd_link_hash_warning)
1503 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1504
1505 /* PR15323, ref flags aren't set for references in the same
1506 object. */
1507 h->root.non_ir_ref_regular = 1;
1508 }
1509
1510 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1511 switch (r_type)
1512 {
1513 case R_TILEPRO_IMM16_X0_TLS_LE:
1514 case R_TILEPRO_IMM16_X1_TLS_LE:
1515 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1516 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1517 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1518 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1519 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1520 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1521 if (bfd_link_pic (info))
1522 goto r_tilepro_plt32;
1523 break;
1524
1525 case R_TILEPRO_IMM16_X0_TLS_GD:
1526 case R_TILEPRO_IMM16_X1_TLS_GD:
1527 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1528 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1529 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1530 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1531 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1532 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1533 BFD_ASSERT (bfd_link_pic (info));
1534 tls_type = GOT_TLS_GD;
1535 goto have_got_reference;
1536
1537 case R_TILEPRO_IMM16_X0_TLS_IE:
1538 case R_TILEPRO_IMM16_X1_TLS_IE:
1539 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1540 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1541 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1542 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1543 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1544 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1545 tls_type = GOT_TLS_IE;
1546 if (bfd_link_pic (info))
1547 info->flags |= DF_STATIC_TLS;
1548 goto have_got_reference;
1549
1550 case R_TILEPRO_IMM16_X0_GOT:
1551 case R_TILEPRO_IMM16_X1_GOT:
1552 case R_TILEPRO_IMM16_X0_GOT_LO:
1553 case R_TILEPRO_IMM16_X1_GOT_LO:
1554 case R_TILEPRO_IMM16_X0_GOT_HI:
1555 case R_TILEPRO_IMM16_X1_GOT_HI:
1556 case R_TILEPRO_IMM16_X0_GOT_HA:
1557 case R_TILEPRO_IMM16_X1_GOT_HA:
1558 tls_type = GOT_NORMAL;
1559 /* Fall Through */
1560
1561 have_got_reference:
1562 /* This symbol requires a global offset table entry. */
1563 {
1564 int old_tls_type;
1565
1566 if (h != NULL)
1567 {
1568 h->got.refcount += 1;
1569 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1570 }
1571 else
1572 {
1573 bfd_signed_vma *local_got_refcounts;
1574
1575 /* This is a global offset table entry for a local symbol. */
1576 local_got_refcounts = elf_local_got_refcounts (abfd);
1577 if (local_got_refcounts == NULL)
1578 {
1579 bfd_size_type size;
1580
1581 size = symtab_hdr->sh_info;
1582 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1583 local_got_refcounts = ((bfd_signed_vma *)
1584 bfd_zalloc (abfd, size));
1585 if (local_got_refcounts == NULL)
1586 return FALSE;
1587 elf_local_got_refcounts (abfd) = local_got_refcounts;
1588 _bfd_tilepro_elf_local_got_tls_type (abfd)
1589 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1590 }
1591 local_got_refcounts[r_symndx] += 1;
1592 old_tls_type =
1593 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1594 }
1595
1596 /* If a TLS symbol is accessed using IE at least once,
1597 there is no point to use dynamic model for it. */
1598 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1599 && (old_tls_type != GOT_TLS_GD
1600 || tls_type != GOT_TLS_IE))
1601 {
1602 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1603 tls_type = old_tls_type;
1604 else
1605 {
1606 _bfd_error_handler
1607 /* xgettext:c-format */
1608 (_("%B: `%s' accessed both as normal and thread local symbol"),
1609 abfd, h ? h->root.root.string : "<local>");
1610 return FALSE;
1611 }
1612 }
1613
1614 if (old_tls_type != tls_type)
1615 {
1616 if (h != NULL)
1617 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1618 else
1619 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1620 tls_type;
1621 }
1622 }
1623
1624 if (htab->elf.sgot == NULL)
1625 {
1626 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1627 return FALSE;
1628 }
1629 break;
1630
1631 case R_TILEPRO_TLS_GD_CALL:
1632 if (bfd_link_pic (info))
1633 {
1634 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1635 against __tls_get_addr. */
1636 struct bfd_link_hash_entry *bh = NULL;
1637 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1638 "__tls_get_addr", 0,
1639 bfd_und_section_ptr, 0,
1640 NULL, FALSE, FALSE,
1641 &bh))
1642 return FALSE;
1643 h = (struct elf_link_hash_entry *) bh;
1644 }
1645 else
1646 break;
1647 /* Fall through */
1648
1649 case R_TILEPRO_JOFFLONG_X1_PLT:
1650 /* This symbol requires a procedure linkage table entry. We
1651 actually build the entry in adjust_dynamic_symbol,
1652 because this might be a case of linking PIC code without
1653 linking in any dynamic objects, in which case we don't
1654 need to generate a procedure linkage table after all. */
1655
1656 if (h != NULL)
1657 {
1658 h->needs_plt = 1;
1659 h->plt.refcount += 1;
1660 }
1661 break;
1662
1663 case R_TILEPRO_32_PCREL:
1664 case R_TILEPRO_16_PCREL:
1665 case R_TILEPRO_8_PCREL:
1666 case R_TILEPRO_IMM16_X0_PCREL:
1667 case R_TILEPRO_IMM16_X1_PCREL:
1668 case R_TILEPRO_IMM16_X0_LO_PCREL:
1669 case R_TILEPRO_IMM16_X1_LO_PCREL:
1670 case R_TILEPRO_IMM16_X0_HI_PCREL:
1671 case R_TILEPRO_IMM16_X1_HI_PCREL:
1672 case R_TILEPRO_IMM16_X0_HA_PCREL:
1673 case R_TILEPRO_IMM16_X1_HA_PCREL:
1674 if (h != NULL)
1675 h->non_got_ref = 1;
1676
1677 if (h != NULL
1678 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1679 break;
1680 /* Fall through. */
1681
1682 case R_TILEPRO_32:
1683 case R_TILEPRO_16:
1684 case R_TILEPRO_8:
1685 case R_TILEPRO_LO16:
1686 case R_TILEPRO_HI16:
1687 case R_TILEPRO_HA16:
1688 case R_TILEPRO_COPY:
1689 case R_TILEPRO_GLOB_DAT:
1690 case R_TILEPRO_JMP_SLOT:
1691 case R_TILEPRO_RELATIVE:
1692 case R_TILEPRO_BROFF_X1:
1693 case R_TILEPRO_JOFFLONG_X1:
1694 case R_TILEPRO_IMM8_X0:
1695 case R_TILEPRO_IMM8_Y0:
1696 case R_TILEPRO_IMM8_X1:
1697 case R_TILEPRO_IMM8_Y1:
1698 case R_TILEPRO_DEST_IMM8_X1:
1699 case R_TILEPRO_MT_IMM15_X1:
1700 case R_TILEPRO_MF_IMM15_X1:
1701 case R_TILEPRO_IMM16_X0:
1702 case R_TILEPRO_IMM16_X1:
1703 case R_TILEPRO_IMM16_X0_LO:
1704 case R_TILEPRO_IMM16_X1_LO:
1705 case R_TILEPRO_IMM16_X0_HI:
1706 case R_TILEPRO_IMM16_X1_HI:
1707 case R_TILEPRO_IMM16_X0_HA:
1708 case R_TILEPRO_IMM16_X1_HA:
1709 case R_TILEPRO_MMSTART_X0:
1710 case R_TILEPRO_MMEND_X0:
1711 case R_TILEPRO_MMSTART_X1:
1712 case R_TILEPRO_MMEND_X1:
1713 case R_TILEPRO_SHAMT_X0:
1714 case R_TILEPRO_SHAMT_X1:
1715 case R_TILEPRO_SHAMT_Y0:
1716 case R_TILEPRO_SHAMT_Y1:
1717 if (h != NULL)
1718 h->non_got_ref = 1;
1719
1720 r_tilepro_plt32:
1721 if (h != NULL && !bfd_link_pic (info))
1722 {
1723 /* We may need a .plt entry if the function this reloc
1724 refers to is in a shared lib. */
1725 h->plt.refcount += 1;
1726 }
1727
1728 /* If we are creating a shared library, and this is a reloc
1729 against a global symbol, or a non PC relative reloc
1730 against a local symbol, then we need to copy the reloc
1731 into the shared library. However, if we are linking with
1732 -Bsymbolic, we do not need to copy a reloc against a
1733 global symbol which is defined in an object we are
1734 including in the link (i.e., DEF_REGULAR is set). At
1735 this point we have not seen all the input files, so it is
1736 possible that DEF_REGULAR is not set now but will be set
1737 later (it is never cleared). In case of a weak definition,
1738 DEF_REGULAR may be cleared later by a strong definition in
1739 a shared library. We account for that possibility below by
1740 storing information in the relocs_copied field of the hash
1741 table entry. A similar situation occurs when creating
1742 shared libraries and symbol visibility changes render the
1743 symbol local.
1744
1745 If on the other hand, we are creating an executable, we
1746 may need to keep relocations for symbols satisfied by a
1747 dynamic library if we manage to avoid copy relocs for the
1748 symbol. */
1749 if ((bfd_link_pic (info)
1750 && (sec->flags & SEC_ALLOC) != 0
1751 && (! tilepro_elf_howto_table[r_type].pc_relative
1752 || (h != NULL
1753 && (! info->symbolic
1754 || h->root.type == bfd_link_hash_defweak
1755 || !h->def_regular))))
1756 || (!bfd_link_pic (info)
1757 && (sec->flags & SEC_ALLOC) != 0
1758 && h != NULL
1759 && (h->root.type == bfd_link_hash_defweak
1760 || !h->def_regular)))
1761 {
1762 struct tilepro_elf_dyn_relocs *p;
1763 struct tilepro_elf_dyn_relocs **head;
1764
1765 /* When creating a shared object, we must copy these
1766 relocs into the output file. We create a reloc
1767 section in dynobj and make room for the reloc. */
1768 if (sreloc == NULL)
1769 {
1770 sreloc = _bfd_elf_make_dynamic_reloc_section
1771 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1772
1773 if (sreloc == NULL)
1774 return FALSE;
1775 }
1776
1777 /* If this is a global symbol, we count the number of
1778 relocations we need for this symbol. */
1779 if (h != NULL)
1780 head =
1781 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1782 else
1783 {
1784 /* Track dynamic relocs needed for local syms too.
1785 We really need local syms available to do this
1786 easily. Oh well. */
1787
1788 asection *s;
1789 void *vpp;
1790 Elf_Internal_Sym *isym;
1791
1792 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1793 abfd, r_symndx);
1794 if (isym == NULL)
1795 return FALSE;
1796
1797 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1798 if (s == NULL)
1799 s = sec;
1800
1801 vpp = &elf_section_data (s)->local_dynrel;
1802 head = (struct tilepro_elf_dyn_relocs **) vpp;
1803 }
1804
1805 p = *head;
1806 if (p == NULL || p->sec != sec)
1807 {
1808 bfd_size_type amt = sizeof *p;
1809 p = ((struct tilepro_elf_dyn_relocs *)
1810 bfd_alloc (htab->elf.dynobj, amt));
1811 if (p == NULL)
1812 return FALSE;
1813 p->next = *head;
1814 *head = p;
1815 p->sec = sec;
1816 p->count = 0;
1817 p->pc_count = 0;
1818 }
1819
1820 p->count += 1;
1821 if (tilepro_elf_howto_table[r_type].pc_relative)
1822 p->pc_count += 1;
1823 }
1824
1825 break;
1826
1827 case R_TILEPRO_GNU_VTINHERIT:
1828 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1829 return FALSE;
1830 break;
1831
1832 case R_TILEPRO_GNU_VTENTRY:
1833 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1834 return FALSE;
1835 break;
1836
1837 default:
1838 break;
1839 }
1840 }
1841
1842 return TRUE;
1843 }
1844
1845 \f
1846 static asection *
1847 tilepro_elf_gc_mark_hook (asection *sec,
1848 struct bfd_link_info *info,
1849 Elf_Internal_Rela *rel,
1850 struct elf_link_hash_entry *h,
1851 Elf_Internal_Sym *sym)
1852 {
1853 if (h != NULL)
1854 {
1855 switch (ELF32_R_TYPE (rel->r_info))
1856 {
1857 case R_TILEPRO_GNU_VTINHERIT:
1858 case R_TILEPRO_GNU_VTENTRY:
1859 return NULL;
1860 }
1861 }
1862
1863 /* FIXME: The test here, in check_relocs and in relocate_section
1864 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1865 if (bfd_link_pic (info))
1866 {
1867 switch (ELF32_R_TYPE (rel->r_info))
1868 {
1869 case R_TILEPRO_TLS_GD_CALL:
1870 /* This reloc implicitly references __tls_get_addr. We know
1871 another reloc will reference the same symbol as the one
1872 on this reloc, so the real symbol and section will be
1873 gc marked when processing the other reloc. That lets
1874 us handle __tls_get_addr here. */
1875 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1876 FALSE, FALSE, TRUE);
1877 BFD_ASSERT (h != NULL);
1878 h->mark = 1;
1879 if (h->u.weakdef != NULL)
1880 h->u.weakdef->mark = 1;
1881 sym = NULL;
1882 }
1883 }
1884
1885 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1886 }
1887
1888 /* Adjust a symbol defined by a dynamic object and referenced by a
1889 regular object. The current definition is in some section of the
1890 dynamic object, but we're not including those sections. We have to
1891 change the definition to something the rest of the link can
1892 understand. */
1893
1894 static bfd_boolean
1895 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1896 struct elf_link_hash_entry *h)
1897 {
1898 struct tilepro_elf_link_hash_table *htab;
1899 struct tilepro_elf_link_hash_entry * eh;
1900 struct tilepro_elf_dyn_relocs *p;
1901 asection *s, *srel;
1902
1903 htab = tilepro_elf_hash_table (info);
1904 BFD_ASSERT (htab != NULL);
1905
1906 /* Make sure we know what is going on here. */
1907 BFD_ASSERT (htab->elf.dynobj != NULL
1908 && (h->needs_plt
1909 || h->u.weakdef != NULL
1910 || (h->def_dynamic
1911 && h->ref_regular
1912 && !h->def_regular)));
1913
1914 /* If this is a function, put it in the procedure linkage table. We
1915 will fill in the contents of the procedure linkage table later
1916 (although we could actually do it here). */
1917 if (h->type == STT_FUNC || h->needs_plt)
1918 {
1919 if (h->plt.refcount <= 0
1920 || SYMBOL_CALLS_LOCAL (info, h)
1921 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1922 && h->root.type == bfd_link_hash_undefweak))
1923 {
1924 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1925 reloc in an input file, but the symbol was never referred
1926 to by a dynamic object, or if all references were garbage
1927 collected. In such a case, we don't actually need to build
1928 a procedure linkage table, and we can just do a
1929 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1930 h->plt.offset = (bfd_vma) -1;
1931 h->needs_plt = 0;
1932 }
1933
1934 return TRUE;
1935 }
1936 else
1937 h->plt.offset = (bfd_vma) -1;
1938
1939 /* If this is a weak symbol, and there is a real definition, the
1940 processor independent code will have arranged for us to see the
1941 real definition first, and we can just use the same value. */
1942 if (h->u.weakdef != NULL)
1943 {
1944 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1945 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1946 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1947 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1948 return TRUE;
1949 }
1950
1951 /* This is a reference to a symbol defined by a dynamic object which
1952 is not a function. */
1953
1954 /* If we are creating a shared library, we must presume that the
1955 only references to the symbol are via the global offset table.
1956 For such cases we need not do anything here; the relocations will
1957 be handled correctly by relocate_section. */
1958 if (bfd_link_pic (info))
1959 return TRUE;
1960
1961 /* If there are no references to this symbol that do not use the
1962 GOT, we don't need to generate a copy reloc. */
1963 if (!h->non_got_ref)
1964 return TRUE;
1965
1966 /* If -z nocopyreloc was given, we won't generate them either. */
1967 if (info->nocopyreloc)
1968 {
1969 h->non_got_ref = 0;
1970 return TRUE;
1971 }
1972
1973 eh = (struct tilepro_elf_link_hash_entry *) h;
1974 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1975 {
1976 s = p->sec->output_section;
1977 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1978 break;
1979 }
1980
1981 /* If we didn't find any dynamic relocs in read-only sections, then
1982 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1983 if (p == NULL)
1984 {
1985 h->non_got_ref = 0;
1986 return TRUE;
1987 }
1988
1989 /* We must allocate the symbol in our .dynbss section, which will
1990 become part of the .bss section of the executable. There will be
1991 an entry for this symbol in the .dynsym section. The dynamic
1992 object will contain position independent code, so all references
1993 from the dynamic object to this symbol will go through the global
1994 offset table. The dynamic linker will use the .dynsym entry to
1995 determine the address it must put in the global offset table, so
1996 both the dynamic object and the regular object will refer to the
1997 same memory location for the variable. */
1998
1999 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
2000 to copy the initial value out of the dynamic object and into the
2001 runtime process image. We need to remember the offset into the
2002 .rel.bss section we are going to use. */
2003 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2004 {
2005 s = htab->elf.sdynrelro;
2006 srel = htab->elf.sreldynrelro;
2007 }
2008 else
2009 {
2010 s = htab->elf.sdynbss;
2011 srel = htab->elf.srelbss;
2012 }
2013 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2014 {
2015 srel->size += TILEPRO_ELF_RELA_BYTES;
2016 h->needs_copy = 1;
2017 }
2018
2019 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2020 }
2021
2022 /* Allocate space in .plt, .got and associated reloc sections for
2023 dynamic relocs. */
2024
2025 static bfd_boolean
2026 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2027 {
2028 struct bfd_link_info *info;
2029 struct tilepro_elf_link_hash_table *htab;
2030 struct tilepro_elf_link_hash_entry *eh;
2031 struct tilepro_elf_dyn_relocs *p;
2032
2033 if (h->root.type == bfd_link_hash_indirect)
2034 return TRUE;
2035
2036 info = (struct bfd_link_info *) inf;
2037 htab = tilepro_elf_hash_table (info);
2038 BFD_ASSERT (htab != NULL);
2039
2040 if (htab->elf.dynamic_sections_created
2041 && h->plt.refcount > 0)
2042 {
2043 /* Make sure this symbol is output as a dynamic symbol.
2044 Undefined weak syms won't yet be marked as dynamic. */
2045 if (h->dynindx == -1
2046 && !h->forced_local)
2047 {
2048 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2049 return FALSE;
2050 }
2051
2052 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2053 {
2054 asection *s = htab->elf.splt;
2055
2056 /* Allocate room for the header. */
2057 if (s->size == 0)
2058 {
2059 s->size = PLT_ENTRY_SIZE;
2060 }
2061
2062 h->plt.offset = s->size;
2063
2064 /* If this symbol is not defined in a regular file, and we are
2065 not generating a shared library, then set the symbol to this
2066 location in the .plt. This is required to make function
2067 pointers compare as equal between the normal executable and
2068 the shared library. */
2069 if (! bfd_link_pic (info)
2070 && !h->def_regular)
2071 {
2072 h->root.u.def.section = s;
2073 h->root.u.def.value = h->plt.offset;
2074 }
2075
2076 /* Make room for this entry. */
2077 s->size += PLT_ENTRY_SIZE;
2078
2079 /* We also need to make an entry in the .got.plt section. */
2080 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2081
2082 /* We also need to make an entry in the .rela.plt section. */
2083 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2084 }
2085 else
2086 {
2087 h->plt.offset = (bfd_vma) -1;
2088 h->needs_plt = 0;
2089 }
2090 }
2091 else
2092 {
2093 h->plt.offset = (bfd_vma) -1;
2094 h->needs_plt = 0;
2095 }
2096
2097 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2098 requiring no TLS entry. */
2099 if (h->got.refcount > 0
2100 && !bfd_link_pic (info)
2101 && h->dynindx == -1
2102 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2103 h->got.offset = (bfd_vma) -1;
2104 else if (h->got.refcount > 0)
2105 {
2106 asection *s;
2107 bfd_boolean dyn;
2108 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2109
2110 /* Make sure this symbol is output as a dynamic symbol.
2111 Undefined weak syms won't yet be marked as dynamic. */
2112 if (h->dynindx == -1
2113 && !h->forced_local)
2114 {
2115 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2116 return FALSE;
2117 }
2118
2119 s = htab->elf.sgot;
2120 h->got.offset = s->size;
2121 s->size += TILEPRO_BYTES_PER_WORD;
2122 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2123 if (tls_type == GOT_TLS_GD)
2124 s->size += TILEPRO_BYTES_PER_WORD;
2125 dyn = htab->elf.dynamic_sections_created;
2126 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2127 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2128 global. */
2129 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2130 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2131 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2132 bfd_link_pic (info),
2133 h))
2134 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2135 }
2136 else
2137 h->got.offset = (bfd_vma) -1;
2138
2139 eh = (struct tilepro_elf_link_hash_entry *) h;
2140 if (eh->dyn_relocs == NULL)
2141 return TRUE;
2142
2143 /* In the shared -Bsymbolic case, discard space allocated for
2144 dynamic pc-relative relocs against symbols which turn out to be
2145 defined in regular objects. For the normal shared case, discard
2146 space for pc-relative relocs that have become local due to symbol
2147 visibility changes. */
2148
2149 if (bfd_link_pic (info))
2150 {
2151 if (SYMBOL_CALLS_LOCAL (info, h))
2152 {
2153 struct tilepro_elf_dyn_relocs **pp;
2154
2155 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2156 {
2157 p->count -= p->pc_count;
2158 p->pc_count = 0;
2159 if (p->count == 0)
2160 *pp = p->next;
2161 else
2162 pp = &p->next;
2163 }
2164 }
2165
2166 /* Also discard relocs on undefined weak syms with non-default
2167 visibility. */
2168 if (eh->dyn_relocs != NULL
2169 && h->root.type == bfd_link_hash_undefweak)
2170 {
2171 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2172 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2173 eh->dyn_relocs = NULL;
2174
2175 /* Make sure undefined weak symbols are output as a dynamic
2176 symbol in PIEs. */
2177 else if (h->dynindx == -1
2178 && !h->forced_local)
2179 {
2180 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2181 return FALSE;
2182 }
2183 }
2184 }
2185 else
2186 {
2187 /* For the non-shared case, discard space for relocs against
2188 symbols which turn out to need copy relocs or are not
2189 dynamic. */
2190
2191 if (!h->non_got_ref
2192 && ((h->def_dynamic
2193 && !h->def_regular)
2194 || (htab->elf.dynamic_sections_created
2195 && (h->root.type == bfd_link_hash_undefweak
2196 || h->root.type == bfd_link_hash_undefined))))
2197 {
2198 /* Make sure this symbol is output as a dynamic symbol.
2199 Undefined weak syms won't yet be marked as dynamic. */
2200 if (h->dynindx == -1
2201 && !h->forced_local)
2202 {
2203 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2204 return FALSE;
2205 }
2206
2207 /* If that succeeded, we know we'll be keeping all the
2208 relocs. */
2209 if (h->dynindx != -1)
2210 goto keep;
2211 }
2212
2213 eh->dyn_relocs = NULL;
2214
2215 keep: ;
2216 }
2217
2218 /* Finally, allocate space. */
2219 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2220 {
2221 asection *sreloc = elf_section_data (p->sec)->sreloc;
2222 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2223 }
2224
2225 return TRUE;
2226 }
2227
2228 /* Find any dynamic relocs that apply to read-only sections. */
2229
2230 static bfd_boolean
2231 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2232 {
2233 struct tilepro_elf_link_hash_entry *eh;
2234 struct tilepro_elf_dyn_relocs *p;
2235
2236 eh = (struct tilepro_elf_link_hash_entry *) h;
2237 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2238 {
2239 asection *s = p->sec->output_section;
2240
2241 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2242 {
2243 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2244
2245 info->flags |= DF_TEXTREL;
2246
2247 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2248 p->sec->owner, p->sec);
2249
2250 /* Not an error, just cut short the traversal. */
2251 return FALSE;
2252 }
2253 }
2254 return TRUE;
2255 }
2256
2257 /* Return true if the dynamic symbol for a given section should be
2258 omitted when creating a shared library. */
2259
2260 static bfd_boolean
2261 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2262 struct bfd_link_info *info,
2263 asection *p)
2264 {
2265 /* We keep the .got section symbol so that explicit relocations
2266 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2267 can be turned into relocations against the .got symbol. */
2268 if (strcmp (p->name, ".got") == 0)
2269 return FALSE;
2270
2271 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2272 }
2273
2274 /* Set the sizes of the dynamic sections. */
2275
2276 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2277
2278 static bfd_boolean
2279 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2280 struct bfd_link_info *info)
2281 {
2282 (void)output_bfd;
2283
2284 struct tilepro_elf_link_hash_table *htab;
2285 bfd *dynobj;
2286 asection *s;
2287 bfd *ibfd;
2288
2289 htab = tilepro_elf_hash_table (info);
2290 BFD_ASSERT (htab != NULL);
2291 dynobj = htab->elf.dynobj;
2292 BFD_ASSERT (dynobj != NULL);
2293
2294 if (elf_hash_table (info)->dynamic_sections_created)
2295 {
2296 /* Set the contents of the .interp section to the interpreter. */
2297 if (bfd_link_executable (info) && !info->nointerp)
2298 {
2299 s = bfd_get_linker_section (dynobj, ".interp");
2300 BFD_ASSERT (s != NULL);
2301 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2302 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2303 }
2304 }
2305
2306 /* Set up .got offsets for local syms, and space for local dynamic
2307 relocs. */
2308 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2309 {
2310 bfd_signed_vma *local_got;
2311 bfd_signed_vma *end_local_got;
2312 char *local_tls_type;
2313 bfd_size_type locsymcount;
2314 Elf_Internal_Shdr *symtab_hdr;
2315 asection *srel;
2316
2317 if (! is_tilepro_elf (ibfd))
2318 continue;
2319
2320 for (s = ibfd->sections; s != NULL; s = s->next)
2321 {
2322 struct tilepro_elf_dyn_relocs *p;
2323
2324 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2325 {
2326 if (!bfd_is_abs_section (p->sec)
2327 && bfd_is_abs_section (p->sec->output_section))
2328 {
2329 /* Input section has been discarded, either because
2330 it is a copy of a linkonce section or due to
2331 linker script /DISCARD/, so we'll be discarding
2332 the relocs too. */
2333 }
2334 else if (p->count != 0)
2335 {
2336 srel = elf_section_data (p->sec)->sreloc;
2337 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2338 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2339 {
2340 info->flags |= DF_TEXTREL;
2341
2342 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2343 p->sec->owner, p->sec);
2344 }
2345 }
2346 }
2347 }
2348
2349 local_got = elf_local_got_refcounts (ibfd);
2350 if (!local_got)
2351 continue;
2352
2353 symtab_hdr = &elf_symtab_hdr (ibfd);
2354 locsymcount = symtab_hdr->sh_info;
2355 end_local_got = local_got + locsymcount;
2356 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2357 s = htab->elf.sgot;
2358 srel = htab->elf.srelgot;
2359 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2360 {
2361 if (*local_got > 0)
2362 {
2363 *local_got = s->size;
2364 s->size += TILEPRO_BYTES_PER_WORD;
2365 if (*local_tls_type == GOT_TLS_GD)
2366 s->size += TILEPRO_BYTES_PER_WORD;
2367 if (bfd_link_pic (info)
2368 || *local_tls_type == GOT_TLS_GD
2369 || *local_tls_type == GOT_TLS_IE)
2370 srel->size += TILEPRO_ELF_RELA_BYTES;
2371 }
2372 else
2373 *local_got = (bfd_vma) -1;
2374 }
2375 }
2376
2377 /* Allocate global sym .plt and .got entries, and space for global
2378 sym dynamic relocs. */
2379 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2380
2381 if (elf_hash_table (info)->dynamic_sections_created)
2382 {
2383 /* If the .got section is more than 0x8000 bytes, we add
2384 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2385 bit relocations have a greater chance of working. */
2386 if (htab->elf.sgot->size >= 0x8000
2387 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2388 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2389 }
2390
2391 if (htab->elf.sgotplt)
2392 {
2393 struct elf_link_hash_entry *got;
2394 got = elf_link_hash_lookup (elf_hash_table (info),
2395 "_GLOBAL_OFFSET_TABLE_",
2396 FALSE, FALSE, FALSE);
2397
2398 /* Don't allocate .got.plt section if there are no GOT nor PLT
2399 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2400 if ((got == NULL
2401 || !got->ref_regular_nonweak)
2402 && (htab->elf.sgotplt->size
2403 == GOTPLT_HEADER_SIZE)
2404 && (htab->elf.splt == NULL
2405 || htab->elf.splt->size == 0)
2406 && (htab->elf.sgot == NULL
2407 || (htab->elf.sgot->size
2408 == get_elf_backend_data (output_bfd)->got_header_size)))
2409 htab->elf.sgotplt->size = 0;
2410 }
2411
2412 /* The check_relocs and adjust_dynamic_symbol entry points have
2413 determined the sizes of the various dynamic sections. Allocate
2414 memory for them. */
2415 for (s = dynobj->sections; s != NULL; s = s->next)
2416 {
2417 if ((s->flags & SEC_LINKER_CREATED) == 0)
2418 continue;
2419
2420 if (s == htab->elf.splt
2421 || s == htab->elf.sgot
2422 || s == htab->elf.sgotplt
2423 || s == htab->elf.sdynbss
2424 || s == htab->elf.sdynrelro)
2425 {
2426 /* Strip this section if we don't need it; see the
2427 comment below. */
2428 }
2429 else if (strncmp (s->name, ".rela", 5) == 0)
2430 {
2431 if (s->size != 0)
2432 {
2433 /* We use the reloc_count field as a counter if we need
2434 to copy relocs into the output file. */
2435 s->reloc_count = 0;
2436 }
2437 }
2438 else
2439 {
2440 /* It's not one of our sections. */
2441 continue;
2442 }
2443
2444 if (s->size == 0)
2445 {
2446 /* If we don't need this section, strip it from the
2447 output file. This is mostly to handle .rela.bss and
2448 .rela.plt. We must create both sections in
2449 create_dynamic_sections, because they must be created
2450 before the linker maps input sections to output
2451 sections. The linker does that before
2452 adjust_dynamic_symbol is called, and it is that
2453 function which decides whether anything needs to go
2454 into these sections. */
2455 s->flags |= SEC_EXCLUDE;
2456 continue;
2457 }
2458
2459 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2460 continue;
2461
2462 /* Allocate memory for the section contents. Zero the memory
2463 for the benefit of .rela.plt, which has 4 unused entries
2464 at the beginning, and we don't want garbage. */
2465 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2466 if (s->contents == NULL)
2467 return FALSE;
2468 }
2469
2470 if (elf_hash_table (info)->dynamic_sections_created)
2471 {
2472 /* Add some entries to the .dynamic section. We fill in the
2473 values later, in tilepro_elf_finish_dynamic_sections, but we
2474 must add the entries now so that we get the correct size for
2475 the .dynamic section. The DT_DEBUG entry is filled in by the
2476 dynamic linker and used by the debugger. */
2477 #define add_dynamic_entry(TAG, VAL) \
2478 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2479
2480 if (bfd_link_executable (info))
2481 {
2482 if (!add_dynamic_entry (DT_DEBUG, 0))
2483 return FALSE;
2484 }
2485
2486 if (htab->elf.srelplt->size != 0)
2487 {
2488 if (!add_dynamic_entry (DT_PLTGOT, 0)
2489 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2490 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2491 || !add_dynamic_entry (DT_JMPREL, 0))
2492 return FALSE;
2493 }
2494
2495 if (!add_dynamic_entry (DT_RELA, 0)
2496 || !add_dynamic_entry (DT_RELASZ, 0)
2497 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2498 return FALSE;
2499
2500 /* If any dynamic relocs apply to a read-only section,
2501 then we need a DT_TEXTREL entry. */
2502 if ((info->flags & DF_TEXTREL) == 0)
2503 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2504
2505 if (info->flags & DF_TEXTREL)
2506 {
2507 if (!add_dynamic_entry (DT_TEXTREL, 0))
2508 return FALSE;
2509 }
2510 }
2511 #undef add_dynamic_entry
2512
2513 return TRUE;
2514 }
2515 \f
2516 /* Return the base VMA address which should be subtracted from real addresses
2517 when resolving @dtpoff relocation.
2518 This is PT_TLS segment p_vaddr. */
2519
2520 static bfd_vma
2521 dtpoff_base (struct bfd_link_info *info)
2522 {
2523 /* If tls_sec is NULL, we should have signalled an error already. */
2524 if (elf_hash_table (info)->tls_sec == NULL)
2525 return 0;
2526 return elf_hash_table (info)->tls_sec->vma;
2527 }
2528
2529 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2530
2531 static bfd_vma
2532 tpoff (struct bfd_link_info *info, bfd_vma address)
2533 {
2534 struct elf_link_hash_table *htab = elf_hash_table (info);
2535
2536 /* If tls_sec is NULL, we should have signalled an error already. */
2537 if (htab->tls_sec == NULL)
2538 return 0;
2539
2540 return (address - htab->tls_sec->vma);
2541 }
2542
2543 /* Replace the MASK bits in ADDR with those in INSN, for the next
2544 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2545
2546 static void
2547 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2548 const bfd_byte *insn)
2549 {
2550 int i;
2551 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2552 {
2553 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2554 }
2555 }
2556
2557 /* Mask to extract the bits corresponding to an instruction in a
2558 specific pipe of a bundle. */
2559 static const bfd_byte insn_mask_X1[] = {
2560 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2561 };
2562
2563 /* Mask to extract the bits corresponding to an instruction in a
2564 specific pipe of a bundle, minus the destination operand and the
2565 first source operand. */
2566 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2567 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2568 };
2569
2570 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2571 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2572 };
2573
2574 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2575 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2576 };
2577
2578 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2579 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2580 };
2581
2582 /* Mask to extract the first source operand of an instruction. */
2583 static const bfd_byte srca_mask_X0[] = {
2584 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2585 };
2586
2587 static const bfd_byte srca_mask_X1[] = {
2588 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2589 };
2590
2591 /* Various instructions synthesized to support tls references. */
2592
2593 /* move r0, r0 in the X1 pipe, used for tls le. */
2594 static const bfd_byte insn_tls_le_move_X1[] = {
2595 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2596 };
2597
2598 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2599 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2600 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2601 };
2602
2603 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2604 static const bfd_byte insn_tls_ie_lw_X1[] = {
2605 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2606 };
2607
2608 /* add r0, r0, tp in various pipes, used for tls ie. */
2609 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2610 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2611 };
2612 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2613 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2614 };
2615
2616 /* move r0, r0 in various pipes, used for tls gd. */
2617 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2618 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2619 };
2620 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2621 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2622 };
2623
2624 /* Relocate an TILEPRO ELF section.
2625
2626 The RELOCATE_SECTION function is called by the new ELF backend linker
2627 to handle the relocations for a section.
2628
2629 The relocs are always passed as Rela structures.
2630
2631 This function is responsible for adjusting the section contents as
2632 necessary, and (if generating a relocatable output file) adjusting
2633 the reloc addend as necessary.
2634
2635 This function does not have to worry about setting the reloc
2636 address or the reloc symbol index.
2637
2638 LOCAL_SYMS is a pointer to the swapped in local symbols.
2639
2640 LOCAL_SECTIONS is an array giving the section in the input file
2641 corresponding to the st_shndx field of each local symbol.
2642
2643 The global hash table entry for the global symbols can be found
2644 via elf_sym_hashes (input_bfd).
2645
2646 When generating relocatable output, this function must handle
2647 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2648 going to be the section symbol corresponding to the output
2649 section, which means that the addend must be adjusted
2650 accordingly. */
2651
2652 static bfd_boolean
2653 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2654 bfd *input_bfd, asection *input_section,
2655 bfd_byte *contents, Elf_Internal_Rela *relocs,
2656 Elf_Internal_Sym *local_syms,
2657 asection **local_sections)
2658 {
2659 struct tilepro_elf_link_hash_table *htab;
2660 Elf_Internal_Shdr *symtab_hdr;
2661 struct elf_link_hash_entry **sym_hashes;
2662 bfd_vma *local_got_offsets;
2663 bfd_vma got_base;
2664 asection *sreloc;
2665 Elf_Internal_Rela *rel;
2666 Elf_Internal_Rela *relend;
2667 int num_relocs;
2668
2669 htab = tilepro_elf_hash_table (info);
2670 BFD_ASSERT (htab != NULL);
2671 symtab_hdr = &elf_symtab_hdr (input_bfd);
2672 sym_hashes = elf_sym_hashes (input_bfd);
2673 local_got_offsets = elf_local_got_offsets (input_bfd);
2674
2675 if (elf_hash_table (info)->hgot == NULL)
2676 got_base = 0;
2677 else
2678 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2679
2680 sreloc = elf_section_data (input_section)->sreloc;
2681
2682 rel = relocs;
2683 num_relocs = input_section->reloc_count;
2684 relend = relocs + num_relocs;
2685 for (; rel < relend; rel++)
2686 {
2687 int r_type, tls_type;
2688 bfd_boolean is_tls_iele, is_tls_le;
2689 reloc_howto_type *howto;
2690 unsigned long r_symndx;
2691 struct elf_link_hash_entry *h;
2692 Elf_Internal_Sym *sym;
2693 tilepro_create_func create_func;
2694 asection *sec;
2695 bfd_vma relocation;
2696 bfd_reloc_status_type r;
2697 const char *name;
2698 bfd_vma off;
2699 bfd_boolean is_plt = FALSE;
2700 bfd_boolean resolved_to_zero;
2701 bfd_boolean unresolved_reloc;
2702
2703 r_type = ELF32_R_TYPE (rel->r_info);
2704 if (r_type == R_TILEPRO_GNU_VTINHERIT
2705 || r_type == R_TILEPRO_GNU_VTENTRY)
2706 continue;
2707
2708 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2709 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2710
2711 howto = tilepro_elf_howto_table + r_type;
2712
2713 /* This is a final link. */
2714 r_symndx = ELF32_R_SYM (rel->r_info);
2715 h = NULL;
2716 sym = NULL;
2717 sec = NULL;
2718 unresolved_reloc = FALSE;
2719 if (r_symndx < symtab_hdr->sh_info)
2720 {
2721 sym = local_syms + r_symndx;
2722 sec = local_sections[r_symndx];
2723 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2724 }
2725 else
2726 {
2727 bfd_boolean warned ATTRIBUTE_UNUSED;
2728 bfd_boolean ignored ATTRIBUTE_UNUSED;
2729
2730 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2731 r_symndx, symtab_hdr, sym_hashes,
2732 h, sec, relocation,
2733 unresolved_reloc, warned, ignored);
2734 if (warned)
2735 {
2736 /* To avoid generating warning messages about truncated
2737 relocations, set the relocation's address to be the same as
2738 the start of this section. */
2739 if (input_section->output_section != NULL)
2740 relocation = input_section->output_section->vma;
2741 else
2742 relocation = 0;
2743 }
2744 }
2745
2746 if (sec != NULL && discarded_section (sec))
2747 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2748 rel, 1, relend, howto, 0, contents);
2749
2750 if (bfd_link_relocatable (info))
2751 continue;
2752
2753 if (h != NULL)
2754 name = h->root.root.string;
2755 else
2756 {
2757 name = (bfd_elf_string_from_elf_section
2758 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2759 if (name == NULL || *name == '\0')
2760 name = bfd_section_name (input_bfd, sec);
2761 }
2762
2763 switch (r_type)
2764 {
2765 case R_TILEPRO_TLS_GD_CALL:
2766 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2767 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2768 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2769 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2770 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2771 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2772 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2773 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2774 tls_type = GOT_UNKNOWN;
2775 if (h == NULL && local_got_offsets)
2776 tls_type =
2777 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2778 else if (h != NULL)
2779 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2780
2781 is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
2782 is_tls_le = is_tls_iele && (!bfd_link_pic (info)
2783 && (h == NULL || h->dynindx == -1));
2784
2785 if (r_type == R_TILEPRO_TLS_GD_CALL)
2786 {
2787 if (is_tls_le)
2788 {
2789 /* GD -> LE */
2790 tilepro_replace_insn (contents + rel->r_offset,
2791 insn_mask_X1, insn_tls_le_move_X1);
2792 continue;
2793 }
2794 else if (is_tls_iele)
2795 {
2796 /* GD -> IE */
2797 tilepro_replace_insn (contents + rel->r_offset,
2798 insn_mask_X1, insn_tls_ie_lw_X1);
2799 continue;
2800 }
2801
2802 /* GD -> GD */
2803 h = (struct elf_link_hash_entry *)
2804 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2805 FALSE, TRUE);
2806 BFD_ASSERT (h != NULL);
2807 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2808 howto = tilepro_elf_howto_table + r_type;
2809 }
2810 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2811 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2812 {
2813 if (is_tls_le)
2814 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2815 insn_tls_le_move_zero_X0X1);
2816 }
2817 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2818 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2819 {
2820 if (is_tls_le)
2821 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2822 insn_tls_le_move_zero_X0X1);
2823 }
2824 else
2825 {
2826 const bfd_byte *mask = NULL;
2827 const bfd_byte *add_insn = NULL;
2828
2829 switch (r_type)
2830 {
2831 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2832 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2833 : insn_tls_gd_add_X0X1;
2834 mask = insn_mask_X0_no_dest_no_srca;
2835 break;
2836 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2837 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2838 : insn_tls_gd_add_X0X1;
2839 mask = insn_mask_X1_no_dest_no_srca;
2840 break;
2841 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2842 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2843 : insn_tls_gd_add_Y0Y1;
2844 mask = insn_mask_Y0_no_dest_no_srca;
2845 break;
2846 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2847 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2848 : insn_tls_gd_add_Y0Y1;
2849 mask = insn_mask_Y1_no_dest_no_srca;
2850 break;
2851 }
2852
2853 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2854
2855 continue;
2856 }
2857 break;
2858 case R_TILEPRO_TLS_IE_LOAD:
2859 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
2860 /* IE -> LE */
2861 tilepro_replace_insn (contents + rel->r_offset,
2862 insn_mask_X1_no_dest_no_srca,
2863 insn_tls_le_move_X1);
2864 else
2865 /* IE -> IE */
2866 tilepro_replace_insn (contents + rel->r_offset,
2867 insn_mask_X1_no_dest_no_srca,
2868 insn_tls_ie_lw_X1);
2869 continue;
2870 break;
2871 default:
2872 break;
2873 }
2874
2875 resolved_to_zero = (h != NULL
2876 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2877
2878 switch (r_type)
2879 {
2880 case R_TILEPRO_IMM16_X0_GOT:
2881 case R_TILEPRO_IMM16_X1_GOT:
2882 case R_TILEPRO_IMM16_X0_GOT_LO:
2883 case R_TILEPRO_IMM16_X1_GOT_LO:
2884 case R_TILEPRO_IMM16_X0_GOT_HI:
2885 case R_TILEPRO_IMM16_X1_GOT_HI:
2886 case R_TILEPRO_IMM16_X0_GOT_HA:
2887 case R_TILEPRO_IMM16_X1_GOT_HA:
2888 /* Relocation is to the entry for this symbol in the global
2889 offset table. */
2890 if (htab->elf.sgot == NULL)
2891 abort ();
2892
2893 if (h != NULL)
2894 {
2895 bfd_boolean dyn;
2896
2897 off = h->got.offset;
2898 BFD_ASSERT (off != (bfd_vma) -1);
2899 dyn = elf_hash_table (info)->dynamic_sections_created;
2900
2901 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2902 bfd_link_pic (info),
2903 h)
2904 || (bfd_link_pic (info)
2905 && SYMBOL_REFERENCES_LOCAL (info, h)))
2906 {
2907 /* This is actually a static link, or it is a
2908 -Bsymbolic link and the symbol is defined
2909 locally, or the symbol was forced to be local
2910 because of a version file. We must initialize
2911 this entry in the global offset table. Since the
2912 offset must always be a multiple
2913 of 4 for 32-bit, we use the least significant bit
2914 to record whether we have initialized it already.
2915
2916 When doing a dynamic link, we create a .rela.got
2917 relocation entry to initialize the value. This
2918 is done in the finish_dynamic_symbol routine. */
2919 if ((off & 1) != 0)
2920 off &= ~1;
2921 else
2922 {
2923 bfd_put_32 (output_bfd, relocation,
2924 htab->elf.sgot->contents + off);
2925 h->got.offset |= 1;
2926 }
2927 }
2928 else
2929 unresolved_reloc = FALSE;
2930 }
2931 else
2932 {
2933 BFD_ASSERT (local_got_offsets != NULL
2934 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2935
2936 off = local_got_offsets[r_symndx];
2937
2938 /* The offset must always be a multiple of 4 on 32-bit.
2939 We use the least significant bit to record
2940 whether we have already processed this entry. */
2941 if ((off & 1) != 0)
2942 off &= ~1;
2943 else
2944 {
2945 if (bfd_link_pic (info))
2946 {
2947 asection *s;
2948 Elf_Internal_Rela outrel;
2949
2950 /* We need to generate a R_TILEPRO_RELATIVE reloc
2951 for the dynamic linker. */
2952 s = htab->elf.srelgot;
2953 BFD_ASSERT (s != NULL);
2954
2955 outrel.r_offset = (htab->elf.sgot->output_section->vma
2956 + htab->elf.sgot->output_offset
2957 + off);
2958 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2959 outrel.r_addend = relocation;
2960 relocation = 0;
2961 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2962 }
2963
2964 bfd_put_32 (output_bfd, relocation,
2965 htab->elf.sgot->contents + off);
2966 local_got_offsets[r_symndx] |= 1;
2967 }
2968 }
2969 relocation = off - got_base;
2970 break;
2971
2972 case R_TILEPRO_JOFFLONG_X1_PLT:
2973 /* Relocation is to the entry for this symbol in the
2974 procedure linkage table. */
2975 BFD_ASSERT (h != NULL);
2976
2977 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2978 {
2979 /* We didn't make a PLT entry for this symbol. This
2980 happens when statically linking PIC code, or when
2981 using -Bsymbolic. */
2982 break;
2983 }
2984
2985 relocation = (htab->elf.splt->output_section->vma
2986 + htab->elf.splt->output_offset
2987 + h->plt.offset);
2988 unresolved_reloc = FALSE;
2989 break;
2990
2991 case R_TILEPRO_32_PCREL:
2992 case R_TILEPRO_16_PCREL:
2993 case R_TILEPRO_8_PCREL:
2994 case R_TILEPRO_IMM16_X0_PCREL:
2995 case R_TILEPRO_IMM16_X1_PCREL:
2996 case R_TILEPRO_IMM16_X0_LO_PCREL:
2997 case R_TILEPRO_IMM16_X1_LO_PCREL:
2998 case R_TILEPRO_IMM16_X0_HI_PCREL:
2999 case R_TILEPRO_IMM16_X1_HI_PCREL:
3000 case R_TILEPRO_IMM16_X0_HA_PCREL:
3001 case R_TILEPRO_IMM16_X1_HA_PCREL:
3002 if (h != NULL
3003 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3004 break;
3005 /* Fall through. */
3006 case R_TILEPRO_32:
3007 case R_TILEPRO_16:
3008 case R_TILEPRO_8:
3009 case R_TILEPRO_LO16:
3010 case R_TILEPRO_HI16:
3011 case R_TILEPRO_HA16:
3012 case R_TILEPRO_COPY:
3013 case R_TILEPRO_GLOB_DAT:
3014 case R_TILEPRO_JMP_SLOT:
3015 case R_TILEPRO_RELATIVE:
3016 case R_TILEPRO_BROFF_X1:
3017 case R_TILEPRO_JOFFLONG_X1:
3018 case R_TILEPRO_IMM8_X0:
3019 case R_TILEPRO_IMM8_Y0:
3020 case R_TILEPRO_IMM8_X1:
3021 case R_TILEPRO_IMM8_Y1:
3022 case R_TILEPRO_DEST_IMM8_X1:
3023 case R_TILEPRO_MT_IMM15_X1:
3024 case R_TILEPRO_MF_IMM15_X1:
3025 case R_TILEPRO_IMM16_X0:
3026 case R_TILEPRO_IMM16_X1:
3027 case R_TILEPRO_IMM16_X0_LO:
3028 case R_TILEPRO_IMM16_X1_LO:
3029 case R_TILEPRO_IMM16_X0_HI:
3030 case R_TILEPRO_IMM16_X1_HI:
3031 case R_TILEPRO_IMM16_X0_HA:
3032 case R_TILEPRO_IMM16_X1_HA:
3033 case R_TILEPRO_MMSTART_X0:
3034 case R_TILEPRO_MMEND_X0:
3035 case R_TILEPRO_MMSTART_X1:
3036 case R_TILEPRO_MMEND_X1:
3037 case R_TILEPRO_SHAMT_X0:
3038 case R_TILEPRO_SHAMT_X1:
3039 case R_TILEPRO_SHAMT_Y0:
3040 case R_TILEPRO_SHAMT_Y1:
3041 if ((input_section->flags & SEC_ALLOC) == 0)
3042 break;
3043
3044 if ((bfd_link_pic (info)
3045 && (h == NULL
3046 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3047 && !resolved_to_zero)
3048 || h->root.type != bfd_link_hash_undefweak)
3049 && (! howto->pc_relative
3050 || !SYMBOL_CALLS_LOCAL (info, h)))
3051 || (!bfd_link_pic (info)
3052 && h != NULL
3053 && h->dynindx != -1
3054 && !h->non_got_ref
3055 && ((h->def_dynamic
3056 && !h->def_regular)
3057 || h->root.type == bfd_link_hash_undefweak
3058 || h->root.type == bfd_link_hash_undefined)))
3059 {
3060 Elf_Internal_Rela outrel;
3061 bfd_boolean skip, relocate = FALSE;
3062
3063 /* When generating a shared object, these relocations
3064 are copied into the output file to be resolved at run
3065 time. */
3066
3067 BFD_ASSERT (sreloc != NULL);
3068
3069 skip = FALSE;
3070
3071 outrel.r_offset =
3072 _bfd_elf_section_offset (output_bfd, info, input_section,
3073 rel->r_offset);
3074 if (outrel.r_offset == (bfd_vma) -1)
3075 skip = TRUE;
3076 else if (outrel.r_offset == (bfd_vma) -2)
3077 skip = TRUE, relocate = TRUE;
3078 outrel.r_offset += (input_section->output_section->vma
3079 + input_section->output_offset);
3080
3081 switch (r_type)
3082 {
3083 case R_TILEPRO_32_PCREL:
3084 case R_TILEPRO_16_PCREL:
3085 case R_TILEPRO_8_PCREL:
3086 /* If the symbol is not dynamic, we should not keep
3087 a dynamic relocation. But an .rela.* slot has been
3088 allocated for it, output R_TILEPRO_NONE.
3089 FIXME: Add code tracking needed dynamic relocs as
3090 e.g. i386 has. */
3091 if (h->dynindx == -1)
3092 skip = TRUE, relocate = TRUE;
3093 break;
3094 }
3095
3096 if (skip)
3097 memset (&outrel, 0, sizeof outrel);
3098 /* h->dynindx may be -1 if the symbol was marked to
3099 become local. */
3100 else if (h != NULL &&
3101 h->dynindx != -1
3102 && (! is_plt
3103 || !bfd_link_pic (info)
3104 || !SYMBOLIC_BIND (info, h)
3105 || !h->def_regular))
3106 {
3107 BFD_ASSERT (h->dynindx != -1);
3108 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3109 outrel.r_addend = rel->r_addend;
3110 }
3111 else
3112 {
3113 if (r_type == R_TILEPRO_32)
3114 {
3115 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3116 outrel.r_addend = relocation + rel->r_addend;
3117 }
3118 else
3119 {
3120 long indx;
3121
3122 outrel.r_addend = relocation + rel->r_addend;
3123
3124 if (is_plt)
3125 sec = htab->elf.splt;
3126
3127 if (bfd_is_abs_section (sec))
3128 indx = 0;
3129 else if (sec == NULL || sec->owner == NULL)
3130 {
3131 bfd_set_error (bfd_error_bad_value);
3132 return FALSE;
3133 }
3134 else
3135 {
3136 asection *osec;
3137
3138 /* We are turning this relocation into one
3139 against a section symbol. It would be
3140 proper to subtract the symbol's value,
3141 osec->vma, from the emitted reloc addend,
3142 but ld.so expects buggy relocs. */
3143 osec = sec->output_section;
3144 indx = elf_section_data (osec)->dynindx;
3145
3146 if (indx == 0)
3147 {
3148 osec = htab->elf.text_index_section;
3149 indx = elf_section_data (osec)->dynindx;
3150 }
3151
3152 /* FIXME: we really should be able to link non-pic
3153 shared libraries. */
3154 if (indx == 0)
3155 {
3156 BFD_FAIL ();
3157 _bfd_error_handler
3158 (_("%B: probably compiled without -fPIC?"),
3159 input_bfd);
3160 bfd_set_error (bfd_error_bad_value);
3161 return FALSE;
3162 }
3163 }
3164
3165 outrel.r_info = ELF32_R_INFO (indx, r_type);
3166 }
3167 }
3168
3169 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3170
3171 /* This reloc will be computed at runtime, so there's no
3172 need to do anything now. */
3173 if (! relocate)
3174 continue;
3175 }
3176 break;
3177
3178 case R_TILEPRO_IMM16_X0_TLS_LE:
3179 case R_TILEPRO_IMM16_X1_TLS_LE:
3180 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3181 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3182 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3183 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3184 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3185 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3186 if (bfd_link_pic (info))
3187 {
3188 Elf_Internal_Rela outrel;
3189 bfd_boolean skip;
3190
3191 BFD_ASSERT (sreloc != NULL);
3192 skip = FALSE;
3193 outrel.r_offset =
3194 _bfd_elf_section_offset (output_bfd, info, input_section,
3195 rel->r_offset);
3196 if (outrel.r_offset == (bfd_vma) -1)
3197 skip = TRUE;
3198 else if (outrel.r_offset == (bfd_vma) -2)
3199 skip = TRUE;
3200 outrel.r_offset += (input_section->output_section->vma
3201 + input_section->output_offset);
3202 if (skip)
3203 memset (&outrel, 0, sizeof outrel);
3204 else
3205 {
3206 outrel.r_info = ELF32_R_INFO (0, r_type);
3207 outrel.r_addend = relocation - dtpoff_base (info)
3208 + rel->r_addend;
3209 }
3210
3211 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3212 continue;
3213 }
3214 relocation = tpoff (info, relocation);
3215 break;
3216
3217 case R_TILEPRO_IMM16_X0_TLS_GD:
3218 case R_TILEPRO_IMM16_X1_TLS_GD:
3219 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3220 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3221 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3222 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3223 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3224 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3225 case R_TILEPRO_IMM16_X0_TLS_IE:
3226 case R_TILEPRO_IMM16_X1_TLS_IE:
3227 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3228 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3229 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3230 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3231 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3232 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3233 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3234 tls_type = GOT_UNKNOWN;
3235 if (h == NULL && local_got_offsets)
3236 tls_type
3237 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3238 else if (h != NULL)
3239 {
3240 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3241 if (!bfd_link_pic (info) && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3242 r_type = tilepro_tls_translate_to_le (r_type);
3243 }
3244 if (tls_type == GOT_TLS_IE)
3245 r_type = tilepro_tls_translate_to_ie (r_type);
3246
3247 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3248 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3249 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3250 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3251 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3252 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3253 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3254 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3255 {
3256 relocation = tpoff (info, relocation);
3257 break;
3258 }
3259
3260 if (h != NULL)
3261 {
3262 off = h->got.offset;
3263 h->got.offset |= 1;
3264 }
3265 else
3266 {
3267 BFD_ASSERT (local_got_offsets != NULL);
3268 off = local_got_offsets[r_symndx];
3269 local_got_offsets[r_symndx] |= 1;
3270 }
3271
3272 if (htab->elf.sgot == NULL)
3273 abort ();
3274
3275 if ((off & 1) != 0)
3276 off &= ~1;
3277 else
3278 {
3279 Elf_Internal_Rela outrel;
3280 int indx = 0;
3281 bfd_boolean need_relocs = FALSE;
3282
3283 if (htab->elf.srelgot == NULL)
3284 abort ();
3285
3286 if (h != NULL)
3287 {
3288 bfd_boolean dyn;
3289 dyn = htab->elf.dynamic_sections_created;
3290
3291 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3292 bfd_link_pic (info),
3293 h)
3294 && (!bfd_link_pic (info)
3295 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3296 {
3297 indx = h->dynindx;
3298 }
3299 }
3300
3301 /* The GOT entries have not been initialized yet. Do it
3302 now, and emit any relocations. */
3303 if ((bfd_link_pic (info) || indx != 0)
3304 && (h == NULL
3305 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3306 || h->root.type != bfd_link_hash_undefweak))
3307 need_relocs = TRUE;
3308
3309 switch (r_type)
3310 {
3311 case R_TILEPRO_IMM16_X0_TLS_IE:
3312 case R_TILEPRO_IMM16_X1_TLS_IE:
3313 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3314 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3315 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3316 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3317 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3318 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3319 if (need_relocs) {
3320 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3321 outrel.r_offset = (htab->elf.sgot->output_section->vma
3322 + htab->elf.sgot->output_offset + off);
3323 outrel.r_addend = 0;
3324 if (indx == 0)
3325 outrel.r_addend = relocation - dtpoff_base (info);
3326 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3327 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3328 &outrel);
3329 } else {
3330 bfd_put_32 (output_bfd, tpoff (info, relocation),
3331 htab->elf.sgot->contents + off);
3332 }
3333 break;
3334
3335 case R_TILEPRO_IMM16_X0_TLS_GD:
3336 case R_TILEPRO_IMM16_X1_TLS_GD:
3337 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3338 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3339 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3340 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3341 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3342 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3343 if (need_relocs) {
3344 outrel.r_offset = (htab->elf.sgot->output_section->vma
3345 + htab->elf.sgot->output_offset + off);
3346 outrel.r_addend = 0;
3347 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3348 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3349 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3350 &outrel);
3351 if (indx == 0)
3352 {
3353 BFD_ASSERT (! unresolved_reloc);
3354 bfd_put_32 (output_bfd,
3355 relocation - dtpoff_base (info),
3356 (htab->elf.sgot->contents + off +
3357 TILEPRO_BYTES_PER_WORD));
3358 }
3359 else
3360 {
3361 bfd_put_32 (output_bfd, 0,
3362 (htab->elf.sgot->contents + off +
3363 TILEPRO_BYTES_PER_WORD));
3364 outrel.r_info = ELF32_R_INFO (indx,
3365 R_TILEPRO_TLS_DTPOFF32);
3366 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3367 tilepro_elf_append_rela_32 (output_bfd,
3368 htab->elf.srelgot, &outrel);
3369 }
3370 }
3371
3372 else {
3373 /* If we are not emitting relocations for a
3374 general dynamic reference, then we must be in a
3375 static link or an executable link with the
3376 symbol binding locally. Mark it as belonging
3377 to module 1, the executable. */
3378 bfd_put_32 (output_bfd, 1,
3379 htab->elf.sgot->contents + off );
3380 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3381 htab->elf.sgot->contents + off +
3382 TILEPRO_BYTES_PER_WORD);
3383 }
3384 break;
3385 }
3386 }
3387
3388 if (off >= (bfd_vma) -2)
3389 abort ();
3390
3391 relocation = off - got_base;
3392 unresolved_reloc = FALSE;
3393 howto = tilepro_elf_howto_table + r_type;
3394 break;
3395
3396 default:
3397 break;
3398 }
3399
3400 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3401 because such sections are not SEC_ALLOC and thus ld.so will
3402 not process them. */
3403 if (unresolved_reloc
3404 && !((input_section->flags & SEC_DEBUGGING) != 0
3405 && h->def_dynamic)
3406 && _bfd_elf_section_offset (output_bfd, info, input_section,
3407 rel->r_offset) != (bfd_vma) -1)
3408 _bfd_error_handler
3409 /* xgettext:c-format */
3410 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
3411 input_bfd,
3412 input_section,
3413 rel->r_offset,
3414 howto->name,
3415 h->root.root.string);
3416
3417 r = bfd_reloc_continue;
3418
3419 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3420 * we will increment bit 16. The howto->rightshift takes care
3421 * of the rest for us. */
3422 switch (r_type)
3423 {
3424 case R_TILEPRO_HA16:
3425 case R_TILEPRO_IMM16_X0_HA:
3426 case R_TILEPRO_IMM16_X1_HA:
3427 case R_TILEPRO_IMM16_X0_HA_PCREL:
3428 case R_TILEPRO_IMM16_X1_HA_PCREL:
3429 case R_TILEPRO_IMM16_X0_GOT_HA:
3430 case R_TILEPRO_IMM16_X1_GOT_HA:
3431 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3432 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3433 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3434 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3435 relocation += 0x8000;
3436 break;
3437 }
3438
3439 /* Get the operand creation function, if any. */
3440 create_func = reloc_to_create_func[r_type];
3441 if (create_func == NULL)
3442 {
3443 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3444 contents, rel->r_offset,
3445 relocation, rel->r_addend);
3446 }
3447 else
3448 {
3449 if (howto->pc_relative)
3450 {
3451 relocation -=
3452 input_section->output_section->vma + input_section->output_offset;
3453 if (howto->pcrel_offset)
3454 relocation -= rel->r_offset;
3455 }
3456
3457 bfd_byte *data;
3458
3459 /* Add the relocation addend if any to the final target value */
3460 relocation += rel->r_addend;
3461
3462 /* Do basic range checking */
3463 r = bfd_check_overflow (howto->complain_on_overflow,
3464 howto->bitsize,
3465 howto->rightshift,
3466 32,
3467 relocation);
3468
3469 /*
3470 * Write the relocated value out into the raw section data.
3471 * Don't put a relocation out in the .rela section.
3472 */
3473 tilepro_bundle_bits mask = create_func(-1);
3474 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3475
3476 /* Only touch bytes while the mask is not 0, so we
3477 don't write to out of bounds memory if this is actually
3478 a 16-bit switch instruction. */
3479 for (data = contents + rel->r_offset; mask != 0; data++)
3480 {
3481 bfd_byte byte_mask = (bfd_byte)mask;
3482 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3483 mask >>= 8;
3484 value >>= 8;
3485 }
3486 }
3487
3488 if (r != bfd_reloc_ok)
3489 {
3490 const char *msg = NULL;
3491
3492 switch (r)
3493 {
3494 case bfd_reloc_overflow:
3495 (*info->callbacks->reloc_overflow)
3496 (info, (h ? &h->root : NULL), name, howto->name,
3497 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3498 break;
3499
3500 case bfd_reloc_undefined:
3501 (*info->callbacks->undefined_symbol)
3502 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3503 break;
3504
3505 case bfd_reloc_outofrange:
3506 msg = _("internal error: out of range error");
3507 break;
3508
3509 case bfd_reloc_notsupported:
3510 msg = _("internal error: unsupported relocation error");
3511 break;
3512
3513 case bfd_reloc_dangerous:
3514 msg = _("internal error: dangerous relocation");
3515 break;
3516
3517 default:
3518 msg = _("internal error: unknown error");
3519 break;
3520 }
3521
3522 if (msg)
3523 (*info->callbacks->warning) (info, msg, name, input_bfd,
3524 input_section, rel->r_offset);
3525 }
3526 }
3527
3528 return TRUE;
3529 }
3530
3531 /* Finish up dynamic symbol handling. We set the contents of various
3532 dynamic sections here. */
3533
3534 static bfd_boolean
3535 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3536 struct bfd_link_info *info,
3537 struct elf_link_hash_entry *h,
3538 Elf_Internal_Sym *sym)
3539 {
3540 struct tilepro_elf_link_hash_table *htab;
3541
3542 htab = tilepro_elf_hash_table (info);
3543 BFD_ASSERT (htab != NULL);
3544
3545 if (h->plt.offset != (bfd_vma) -1)
3546 {
3547 asection *splt;
3548 asection *srela;
3549 asection *sgotplt;
3550 Elf_Internal_Rela rela;
3551 bfd_byte *loc;
3552 bfd_vma r_offset;
3553
3554 int rela_index;
3555
3556 /* This symbol has an entry in the PLT. Set it up. */
3557
3558 BFD_ASSERT (h->dynindx != -1);
3559
3560 splt = htab->elf.splt;
3561 srela = htab->elf.srelplt;
3562 sgotplt = htab->elf.sgotplt;
3563
3564 if (splt == NULL || srela == NULL)
3565 abort ();
3566
3567 /* Fill in the entry in the procedure linkage table. */
3568 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3569 &r_offset);
3570
3571 /* Fill in the entry in the global offset table, which initially points
3572 to the beginning of the plt. */
3573 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3574 sgotplt->contents + r_offset);
3575
3576 /* Fill in the entry in the .rela.plt section. */
3577 rela.r_offset = (sgotplt->output_section->vma
3578 + sgotplt->output_offset
3579 + r_offset);
3580 rela.r_addend = 0;
3581 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3582
3583 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3584 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3585
3586 if (!h->def_regular)
3587 {
3588 /* Mark the symbol as undefined, rather than as defined in
3589 the .plt section. Leave the value alone. */
3590 sym->st_shndx = SHN_UNDEF;
3591 /* If the symbol is weak, we do need to clear the value.
3592 Otherwise, the PLT entry would provide a definition for
3593 the symbol even if the symbol wasn't defined anywhere,
3594 and so the symbol would never be NULL. */
3595 if (!h->ref_regular_nonweak)
3596 sym->st_value = 0;
3597 }
3598 }
3599
3600 if (h->got.offset != (bfd_vma) -1
3601 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3602 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3603 {
3604 asection *sgot;
3605 asection *srela;
3606 Elf_Internal_Rela rela;
3607
3608 /* This symbol has an entry in the GOT. Set it up. */
3609
3610 sgot = htab->elf.sgot;
3611 srela = htab->elf.srelgot;
3612 BFD_ASSERT (sgot != NULL && srela != NULL);
3613
3614 rela.r_offset = (sgot->output_section->vma
3615 + sgot->output_offset
3616 + (h->got.offset &~ (bfd_vma) 1));
3617
3618 /* If this is a -Bsymbolic link, and the symbol is defined
3619 locally, we just want to emit a RELATIVE reloc. Likewise if
3620 the symbol was forced to be local because of a version file.
3621 The entry in the global offset table will already have been
3622 initialized in the relocate_section function. */
3623 if (bfd_link_pic (info)
3624 && (info->symbolic || h->dynindx == -1)
3625 && h->def_regular)
3626 {
3627 asection *sec = h->root.u.def.section;
3628 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3629 rela.r_addend = (h->root.u.def.value
3630 + sec->output_section->vma
3631 + sec->output_offset);
3632 }
3633 else
3634 {
3635 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3636 rela.r_addend = 0;
3637 }
3638
3639 bfd_put_32 (output_bfd, 0,
3640 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3641 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3642 }
3643
3644 if (h->needs_copy)
3645 {
3646 asection *s;
3647 Elf_Internal_Rela rela;
3648
3649 /* This symbols needs a copy reloc. Set it up. */
3650 BFD_ASSERT (h->dynindx != -1);
3651
3652 rela.r_offset = (h->root.u.def.value
3653 + h->root.u.def.section->output_section->vma
3654 + h->root.u.def.section->output_offset);
3655 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3656 rela.r_addend = 0;
3657 if (h->root.u.def.section == htab->elf.sdynrelro)
3658 s = htab->elf.sreldynrelro;
3659 else
3660 s = htab->elf.srelbss;
3661 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3662 }
3663
3664 /* Mark some specially defined symbols as absolute. */
3665 if (h == htab->elf.hdynamic
3666 || (h == htab->elf.hgot || h == htab->elf.hplt))
3667 sym->st_shndx = SHN_ABS;
3668
3669 return TRUE;
3670 }
3671
3672 /* Finish up the dynamic sections. */
3673
3674 static bfd_boolean
3675 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3676 bfd *dynobj, asection *sdyn,
3677 asection *splt ATTRIBUTE_UNUSED)
3678 {
3679 Elf32_External_Dyn *dyncon, *dynconend;
3680 struct tilepro_elf_link_hash_table *htab;
3681
3682 htab = tilepro_elf_hash_table (info);
3683 BFD_ASSERT (htab != NULL);
3684 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3685 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3686 for (; dyncon < dynconend; dyncon++)
3687 {
3688 Elf_Internal_Dyn dyn;
3689 asection *s;
3690
3691 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3692
3693 switch (dyn.d_tag)
3694 {
3695 case DT_PLTGOT:
3696 s = htab->elf.sgotplt;
3697 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3698 break;
3699 case DT_JMPREL:
3700 s = htab->elf.srelplt;
3701 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3702 break;
3703 case DT_PLTRELSZ:
3704 s = htab->elf.srelplt;
3705 dyn.d_un.d_val = s->size;
3706 break;
3707 default:
3708 continue;
3709 }
3710
3711 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3712 }
3713 return TRUE;
3714 }
3715
3716 static bfd_boolean
3717 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3718 struct bfd_link_info *info)
3719 {
3720 bfd *dynobj;
3721 asection *sdyn;
3722 struct tilepro_elf_link_hash_table *htab;
3723
3724 htab = tilepro_elf_hash_table (info);
3725 BFD_ASSERT (htab != NULL);
3726 dynobj = htab->elf.dynobj;
3727
3728 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3729
3730 if (elf_hash_table (info)->dynamic_sections_created)
3731 {
3732 asection *splt;
3733 bfd_boolean ret;
3734
3735 splt = htab->elf.splt;
3736 BFD_ASSERT (splt != NULL && sdyn != NULL);
3737
3738 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3739
3740 if (!ret)
3741 return ret;
3742
3743 /* Fill in the first entry in the procedure linkage table. */
3744 if (splt->size > 0)
3745 {
3746 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3747 memset (splt->contents + PLT_HEADER_SIZE, 0,
3748 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3749 }
3750
3751 if (elf_section_data (splt->output_section) != NULL)
3752 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3753 = PLT_ENTRY_SIZE;
3754 }
3755
3756 if (htab->elf.sgotplt)
3757 {
3758 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3759 {
3760 _bfd_error_handler
3761 (_("discarded output section: `%A'"), htab->elf.sgotplt);
3762 return FALSE;
3763 }
3764
3765 if (htab->elf.sgotplt->size > 0)
3766 {
3767 /* Write the first two entries in .got.plt, needed for the dynamic
3768 linker. */
3769 bfd_put_32 (output_bfd, (bfd_vma) -1,
3770 htab->elf.sgotplt->contents);
3771 bfd_put_32 (output_bfd, (bfd_vma) 0,
3772 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3773 }
3774
3775 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3776 = GOT_ENTRY_SIZE;
3777 }
3778
3779 if (htab->elf.sgot)
3780 {
3781 if (htab->elf.sgot->size > 0)
3782 {
3783 /* Set the first entry in the global offset table to the address of
3784 the dynamic section. */
3785 bfd_vma val = (sdyn ?
3786 sdyn->output_section->vma + sdyn->output_offset :
3787 0);
3788 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3789 }
3790
3791 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3792 = GOT_ENTRY_SIZE;
3793 }
3794
3795 return TRUE;
3796 }
3797
3798 \f
3799
3800 /* Return address for Ith PLT stub in section PLT, for relocation REL
3801 or (bfd_vma) -1 if it should not be included. */
3802
3803 static bfd_vma
3804 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3805 const arelent *rel ATTRIBUTE_UNUSED)
3806 {
3807 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3808 }
3809
3810 static enum elf_reloc_type_class
3811 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3812 const asection *rel_sec ATTRIBUTE_UNUSED,
3813 const Elf_Internal_Rela *rela)
3814 {
3815 switch ((int) ELF32_R_TYPE (rela->r_info))
3816 {
3817 case R_TILEPRO_RELATIVE:
3818 return reloc_class_relative;
3819 case R_TILEPRO_JMP_SLOT:
3820 return reloc_class_plt;
3821 case R_TILEPRO_COPY:
3822 return reloc_class_copy;
3823 default:
3824 return reloc_class_normal;
3825 }
3826 }
3827
3828 static int
3829 tilepro_additional_program_headers (bfd *abfd,
3830 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3831 {
3832 /* Each .intrpt section specified by the user adds another PT_LOAD
3833 header since the sections are discontiguous. */
3834 static const char intrpt_sections[4][9] =
3835 {
3836 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3837 };
3838 int count = 0;
3839 int i;
3840
3841 for (i = 0; i < 4; i++)
3842 {
3843 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3844 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3845 ++count;
3846 }
3847
3848 /* Add four "padding" headers in to leave room in case a custom linker
3849 script does something fancy. Otherwise ld complains that it ran
3850 out of program headers and refuses to link. */
3851 count += 4;
3852
3853 return count;
3854 }
3855
3856 #define ELF_ARCH bfd_arch_tilepro
3857 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3858 #define ELF_MACHINE_CODE EM_TILEPRO
3859 #define ELF_MAXPAGESIZE 0x10000
3860 #define ELF_COMMONPAGESIZE 0x10000
3861
3862 #define TARGET_LITTLE_SYM tilepro_elf32_vec
3863 #define TARGET_LITTLE_NAME "elf32-tilepro"
3864
3865 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3866
3867 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3868 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3869 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3870
3871 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3872 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3873 #define elf_backend_check_relocs tilepro_elf_check_relocs
3874 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3875 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3876 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3877 #define elf_backend_relocate_section tilepro_elf_relocate_section
3878 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3879 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3880 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3881 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
3882 #define elf_info_to_howto_rel NULL
3883 #define elf_info_to_howto tilepro_info_to_howto_rela
3884 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
3885 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
3886 #define elf_backend_additional_program_headers tilepro_additional_program_headers
3887
3888 #define bfd_elf32_mkobject tilepro_elf_mkobject
3889
3890 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3891
3892 #define elf_backend_can_gc_sections 1
3893 #define elf_backend_can_refcount 1
3894 #define elf_backend_want_got_plt 1
3895 #define elf_backend_plt_readonly 1
3896 /* Align PLT mod 64 byte L2 line size. */
3897 #define elf_backend_plt_alignment 6
3898 #define elf_backend_want_plt_sym 1
3899 #define elf_backend_got_header_size GOT_ENTRY_SIZE
3900 #define elf_backend_want_dynrelro 1
3901 #define elf_backend_rela_normal 1
3902 #define elf_backend_default_execstack 0
3903
3904 #include "elf32-target.h"