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[thirdparty/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2019 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilepro.h"
26 #include "opcode/tilepro.h"
27 #include "libiberty.h"
28 #include "elf32-tilepro.h"
29
30 #define TILEPRO_BYTES_PER_WORD 4
31
32 static reloc_howto_type tilepro_elf_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_TILEPRO_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* TILEPRO ELF linker hash entry. */
683
684 struct tilepro_elf_link_hash_entry
685 {
686 struct elf_link_hash_entry elf;
687
688 /* Track dynamic relocs copied for this symbol. */
689 struct elf_dyn_relocs *dyn_relocs;
690
691 #define GOT_UNKNOWN 0
692 #define GOT_NORMAL 1
693 #define GOT_TLS_GD 2
694 #define GOT_TLS_IE 4
695 unsigned char tls_type;
696 };
697
698 #define tilepro_elf_hash_entry(ent) \
699 ((struct tilepro_elf_link_hash_entry *)(ent))
700
701 struct _bfd_tilepro_elf_obj_tdata
702 {
703 struct elf_obj_tdata root;
704
705 /* tls_type for each local got entry. */
706 char *local_got_tls_type;
707 };
708
709 #define _bfd_tilepro_elf_tdata(abfd) \
710 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
711
712 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
713 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
714
715 #define is_tilepro_elf(bfd) \
716 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
717 && elf_tdata (bfd) != NULL \
718 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
719
720 /* Allocate TILEPro ELF private object data. */
721
722 static bfd_boolean
723 tilepro_elf_mkobject (bfd *abfd)
724 {
725 return bfd_elf_allocate_object (abfd,
726 sizeof (struct _bfd_tilepro_elf_obj_tdata),
727 TILEPRO_ELF_DATA);
728 }
729
730 #include "elf/common.h"
731 #include "elf/internal.h"
732
733 struct tilepro_elf_link_hash_table
734 {
735 struct elf_link_hash_table elf;
736
737 /* Small local sym to section mapping cache. */
738 struct sym_cache sym_cache;
739 };
740
741 /* Get the Tilepro ELF linker hash table from a link_info structure. */
742 #define tilepro_elf_hash_table(p) \
743 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
744 == TILEPRO_ELF_DATA \
745 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
746
747 static reloc_howto_type *
748 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
749 bfd_reloc_code_real_type code)
750 {
751 unsigned int i;
752
753 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
754 {
755 const reloc_map * entry;
756
757 entry = tilepro_reloc_map + i;
758
759 if (entry->bfd_reloc_val == code)
760 return entry->table + (entry->tilepro_reloc_val
761 - entry->table[0].type);
762 }
763
764 return NULL;
765 }
766
767 static reloc_howto_type *
768 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
769 const char *r_name)
770 {
771 unsigned int i;
772
773 for (i = 0;
774 i < (sizeof (tilepro_elf_howto_table)
775 / sizeof (tilepro_elf_howto_table[0]));
776 i++)
777 if (tilepro_elf_howto_table[i].name != NULL
778 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
779 return &tilepro_elf_howto_table[i];
780
781 return NULL;
782 }
783
784 /* Set the howto pointer for an TILEPro ELF reloc. */
785
786 static bfd_boolean
787 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
788 arelent * cache_ptr,
789 Elf_Internal_Rela * dst)
790 {
791 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
792
793 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
794 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
795 else if (r_type - R_TILEPRO_GNU_VTINHERIT
796 <= ((unsigned int) R_TILEPRO_GNU_VTENTRY
797 - (unsigned int) R_TILEPRO_GNU_VTINHERIT))
798 cache_ptr->howto
799 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
800 else
801 {
802 /* xgettext:c-format */
803 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
804 abfd, r_type);
805 bfd_set_error (bfd_error_bad_value);
806 return FALSE;
807 }
808 return TRUE;
809 }
810
811 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
812
813 static const tilepro_create_func reloc_to_create_func[] =
814 {
815 /* The first fourteen relocation types don't correspond to operands */
816 NULL,
817 NULL,
818 NULL,
819 NULL,
820 NULL,
821 NULL,
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827 NULL,
828 NULL,
829 NULL,
830
831 /* The remaining relocations are used for immediate operands */
832 create_BrOff_X1,
833 create_JOffLong_X1,
834 create_JOffLong_X1,
835 create_Imm8_X0,
836 create_Imm8_Y0,
837 create_Imm8_X1,
838 create_Imm8_Y1,
839 create_MT_Imm15_X1,
840 create_MF_Imm15_X1,
841 create_Imm16_X0,
842 create_Imm16_X1,
843 create_Imm16_X0,
844 create_Imm16_X1,
845 create_Imm16_X0,
846 create_Imm16_X1,
847 create_Imm16_X0,
848 create_Imm16_X1,
849 create_Imm16_X0,
850 create_Imm16_X1,
851 create_Imm16_X0,
852 create_Imm16_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_MMStart_X0,
866 create_MMEnd_X0,
867 create_MMStart_X1,
868 create_MMEnd_X1,
869 create_ShAmt_X0,
870 create_ShAmt_X1,
871 create_ShAmt_Y0,
872 create_ShAmt_Y1,
873
874 create_Dest_Imm8_X1,
875 NULL,
876 NULL,
877 NULL,
878 NULL,
879 NULL,
880 NULL,
881 NULL,
882 NULL,
883 NULL,
884 NULL,
885
886 create_Imm16_X0,
887 create_Imm16_X1,
888 create_Imm16_X0,
889 create_Imm16_X1,
890 create_Imm16_X0,
891 create_Imm16_X1,
892 create_Imm16_X0,
893 create_Imm16_X1,
894 create_Imm16_X0,
895 create_Imm16_X1,
896 create_Imm16_X0,
897 create_Imm16_X1,
898 create_Imm16_X0,
899 create_Imm16_X1,
900 create_Imm16_X0,
901 create_Imm16_X1,
902
903 NULL,
904 NULL,
905 NULL,
906
907 create_Imm16_X0,
908 create_Imm16_X1,
909 create_Imm16_X0,
910 create_Imm16_X1,
911 create_Imm16_X0,
912 create_Imm16_X1,
913 create_Imm16_X0,
914 create_Imm16_X1,
915 };
916
917 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
918
919 /* Support for core dump NOTE sections. */
920
921 static bfd_boolean
922 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
923 {
924 int offset;
925 size_t size;
926
927 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
928 return FALSE;
929
930 /* pr_cursig */
931 elf_tdata (abfd)->core->signal =
932 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
933
934 /* pr_pid */
935 elf_tdata (abfd)->core->pid =
936 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
937
938 /* pr_reg */
939 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
940 size = TILEPRO_GREGSET_T_SIZE;
941
942 /* Make a ".reg/999" section. */
943 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
944 size, note->descpos + offset);
945 }
946
947 static bfd_boolean
948 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
949 {
950 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
951 return FALSE;
952
953 elf_tdata (abfd)->core->program
954 = _bfd_elfcore_strndup (abfd,
955 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
956 16);
957 elf_tdata (abfd)->core->command
958 = _bfd_elfcore_strndup (abfd,
959 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
960 ELF_PR_PSARGS_SIZE);
961
962
963 /* Note that for some reason, a spurious space is tacked
964 onto the end of the args in some (at least one anyway)
965 implementations, so strip it off if it exists. */
966 {
967 char *command = elf_tdata (abfd)->core->command;
968 int n = strlen (command);
969
970 if (0 < n && command[n - 1] == ' ')
971 command[n - 1] = '\0';
972 }
973
974 return TRUE;
975 }
976
977
978 static void
979 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
980 {
981 Elf32_External_Rela *loc32;
982
983 loc32 = (Elf32_External_Rela *) s->contents;
984 loc32 += s->reloc_count++;
985 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
986 }
987
988 /* PLT/GOT stuff */
989
990 /* The procedure linkage table starts with the following header:
991
992 {
993 rli r29, r29, 16
994 lwadd r28, r27, 4
995 }
996 lw r27, r27
997 {
998 info 10 ## SP not offset, return PC in LR
999 jr r27
1000 }
1001
1002 Subsequent entries are the following, jumping to the header at the end:
1003
1004 lnk r28
1005 1:
1006 {
1007 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1008 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1009 }
1010 {
1011 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1012 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1013 }
1014 {
1015 auli r29, zero, MY_PLT_INDEX
1016 lw r28, r28
1017 }
1018 {
1019 info 10 ## SP not offset, return PC in LR
1020 jr r28
1021 }
1022
1023 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1024 16 bits as an unsigned offset; if we use the low bits we would get an
1025 unwanted sign extension. The PLT header then rotates the index to get the
1026 right value, before calling the resolution routine. This computation can
1027 fit in unused bundle slots so it's free.
1028
1029 This code sequence lets the code at at the start of the PLT determine
1030 which PLT entry was executed by examining 'r29'.
1031
1032 Note that MY_PLT_INDEX skips over the header entries, so the first
1033 actual jump table entry has index zero.
1034 */
1035
1036 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1037 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1038
1039 #define PLT_HEADER_SIZE \
1040 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1041 #define PLT_ENTRY_SIZE \
1042 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1043
1044 /* The size in bytes of an entry in the global offset table. */
1045
1046 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1047
1048 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1049
1050
1051 static const bfd_byte
1052 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1053 {
1054 0x5d, 0x07, 0x03, 0x70,
1055 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1056 0x00, 0x50, 0xba, 0x6d,
1057 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1058 0xff, 0xaf, 0x10, 0x50,
1059 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1060 };
1061
1062 static const bfd_byte
1063 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1064 {
1065 0x00, 0x50, 0x16, 0x70,
1066 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1067 0x1c, 0x07, 0x00, 0xa0,
1068 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1069 0xdd, 0x0f, 0x00, 0x30,
1070 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1071 0xff, 0xaf, 0x10, 0x50,
1072 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1073 0x00, 0x00, 0x00, 0x00,
1074 0x00, 0x00, 0x00, 0x00,
1075 };
1076
1077 static const bfd_byte
1078 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1079 {
1080 0x00, 0x50, 0x16, 0x70,
1081 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1082 0x1c, 0x07, 0x00, 0xb0,
1083 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1084 0x1c, 0x07, 0x00, 0xa0,
1085 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1086 0xdd, 0x0f, 0x00, 0x30,
1087 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1088 0xff, 0xaf, 0x10, 0x50,
1089 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1090 };
1091
1092 static bfd_vma
1093 tilepro_ha16(bfd_vma vma)
1094 {
1095 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1096 }
1097
1098 static int
1099 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1100 bfd_vma *r_offset)
1101 {
1102 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1103 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1104 tilepro_bundle_bits *pc;
1105
1106 /* Compute the distance from the got entry to the lnk. */
1107 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1108 + sgotplt->output_offset
1109 + got_offset
1110 - splt->output_section->vma
1111 - splt->output_offset
1112 - offset
1113 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1114
1115 /* Compute the distance to GOTPLT[0]. */
1116 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1117
1118 /* Check whether we can use the short plt entry with 16-bit offset. */
1119 bfd_boolean short_plt_entry =
1120 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1121
1122 /* Copy the plt entry template. */
1123 memcpy (splt->contents + offset,
1124 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1125 PLT_ENTRY_SIZE);
1126
1127 /* Write the immediate offsets. */
1128 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1129 pc++;
1130
1131 if (!short_plt_entry)
1132 {
1133 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1134 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1135 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1136 }
1137
1138 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1139 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1140 *pc++ |= create_Imm16_X0 (dist_got_entry)
1141 | create_Imm16_X1 (dist_got0);
1142
1143 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1144 *pc |= create_Imm16_X0 (plt_index);
1145
1146 /* Set the relocation offset. */
1147 *r_offset = got_offset;
1148
1149 return plt_index;
1150 }
1151
1152 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1153
1154
1155 /* Create an entry in an TILEPro ELF linker hash table. */
1156
1157 static struct bfd_hash_entry *
1158 link_hash_newfunc (struct bfd_hash_entry *entry,
1159 struct bfd_hash_table *table, const char *string)
1160 {
1161 /* Allocate the structure if it has not already been allocated by a
1162 subclass. */
1163 if (entry == NULL)
1164 {
1165 entry =
1166 bfd_hash_allocate (table,
1167 sizeof (struct tilepro_elf_link_hash_entry));
1168 if (entry == NULL)
1169 return entry;
1170 }
1171
1172 /* Call the allocation method of the superclass. */
1173 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1174 if (entry != NULL)
1175 {
1176 struct tilepro_elf_link_hash_entry *eh;
1177
1178 eh = (struct tilepro_elf_link_hash_entry *) entry;
1179 eh->dyn_relocs = NULL;
1180 eh->tls_type = GOT_UNKNOWN;
1181 }
1182
1183 return entry;
1184 }
1185
1186 /* Create a TILEPRO ELF linker hash table. */
1187
1188 static struct bfd_link_hash_table *
1189 tilepro_elf_link_hash_table_create (bfd *abfd)
1190 {
1191 struct tilepro_elf_link_hash_table *ret;
1192 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1193
1194 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1195 if (ret == NULL)
1196 return NULL;
1197
1198 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1199 sizeof (struct tilepro_elf_link_hash_entry),
1200 TILEPRO_ELF_DATA))
1201 {
1202 free (ret);
1203 return NULL;
1204 }
1205
1206 return &ret->elf.root;
1207 }
1208
1209 /* Create the .got section. */
1210
1211 static bfd_boolean
1212 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1213 {
1214 flagword flags;
1215 asection *s, *s_got;
1216 struct elf_link_hash_entry *h;
1217 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1218 struct elf_link_hash_table *htab = elf_hash_table (info);
1219
1220 /* This function may be called more than once. */
1221 if (htab->sgot != NULL)
1222 return TRUE;
1223
1224 flags = bed->dynamic_sec_flags;
1225
1226 s = bfd_make_section_with_flags (abfd,
1227 (bed->rela_plts_and_copies_p
1228 ? ".rela.got" : ".rel.got"),
1229 (bed->dynamic_sec_flags
1230 | SEC_READONLY));
1231 if (s == NULL
1232 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1233 return FALSE;
1234 htab->srelgot = s;
1235
1236 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1237 if (s == NULL
1238 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1239 return FALSE;
1240 htab->sgot = s;
1241
1242 /* The first bit of the global offset table is the header. */
1243 s->size += bed->got_header_size;
1244
1245 if (bed->want_got_plt)
1246 {
1247 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1248 if (s == NULL
1249 || !bfd_set_section_alignment (abfd, s,
1250 bed->s->log_file_align))
1251 return FALSE;
1252 htab->sgotplt = s;
1253
1254 /* Reserve room for the header. */
1255 s->size += GOTPLT_HEADER_SIZE;
1256 }
1257
1258 if (bed->want_got_sym)
1259 {
1260 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1261 section. We don't do this in the linker script because we don't want
1262 to define the symbol if we are not creating a global offset
1263 table. */
1264 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1265 "_GLOBAL_OFFSET_TABLE_");
1266 elf_hash_table (info)->hgot = h;
1267 if (h == NULL)
1268 return FALSE;
1269 }
1270
1271 return TRUE;
1272 }
1273
1274 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1275 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1276 hash table. */
1277
1278 static bfd_boolean
1279 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1280 struct bfd_link_info *info)
1281 {
1282 if (!tilepro_elf_create_got_section (dynobj, info))
1283 return FALSE;
1284
1285 return _bfd_elf_create_dynamic_sections (dynobj, info);
1286 }
1287
1288 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1289
1290 static void
1291 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1292 struct elf_link_hash_entry *dir,
1293 struct elf_link_hash_entry *ind)
1294 {
1295 struct tilepro_elf_link_hash_entry *edir, *eind;
1296
1297 edir = (struct tilepro_elf_link_hash_entry *) dir;
1298 eind = (struct tilepro_elf_link_hash_entry *) ind;
1299
1300 if (eind->dyn_relocs != NULL)
1301 {
1302 if (edir->dyn_relocs != NULL)
1303 {
1304 struct elf_dyn_relocs **pp;
1305 struct elf_dyn_relocs *p;
1306
1307 /* Add reloc counts against the indirect sym to the direct sym
1308 list. Merge any entries against the same section. */
1309 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1310 {
1311 struct elf_dyn_relocs *q;
1312
1313 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1314 if (q->sec == p->sec)
1315 {
1316 q->pc_count += p->pc_count;
1317 q->count += p->count;
1318 *pp = p->next;
1319 break;
1320 }
1321 if (q == NULL)
1322 pp = &p->next;
1323 }
1324 *pp = edir->dyn_relocs;
1325 }
1326
1327 edir->dyn_relocs = eind->dyn_relocs;
1328 eind->dyn_relocs = NULL;
1329 }
1330
1331 if (ind->root.type == bfd_link_hash_indirect
1332 && dir->got.refcount <= 0)
1333 {
1334 edir->tls_type = eind->tls_type;
1335 eind->tls_type = GOT_UNKNOWN;
1336 }
1337 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1338 }
1339
1340 static int
1341 tilepro_tls_translate_to_le (int r_type)
1342 {
1343 switch (r_type)
1344 {
1345 case R_TILEPRO_IMM16_X0_TLS_GD:
1346 case R_TILEPRO_IMM16_X0_TLS_IE:
1347 return R_TILEPRO_IMM16_X0_TLS_LE;
1348
1349 case R_TILEPRO_IMM16_X1_TLS_GD:
1350 case R_TILEPRO_IMM16_X1_TLS_IE:
1351 return R_TILEPRO_IMM16_X1_TLS_LE;
1352
1353 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1354 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1355 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1356
1357 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1358 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1359 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1360
1361 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1362 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1363 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1364
1365 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1366 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1367 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1368
1369 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1370 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1371 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1372
1373 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1374 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1375 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1376 }
1377 return r_type;
1378 }
1379
1380 static int
1381 tilepro_tls_translate_to_ie (int r_type)
1382 {
1383 switch (r_type)
1384 {
1385 case R_TILEPRO_IMM16_X0_TLS_GD:
1386 case R_TILEPRO_IMM16_X0_TLS_IE:
1387 return R_TILEPRO_IMM16_X0_TLS_IE;
1388
1389 case R_TILEPRO_IMM16_X1_TLS_GD:
1390 case R_TILEPRO_IMM16_X1_TLS_IE:
1391 return R_TILEPRO_IMM16_X1_TLS_IE;
1392
1393 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1394 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1395 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1396
1397 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1398 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1399 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1400
1401 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1402 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1403 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1404
1405 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1406 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1407 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1408
1409 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1410 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1411 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1412
1413 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1414 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1415 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1416 }
1417 return r_type;
1418 }
1419
1420 static int
1421 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1422 int is_local)
1423 {
1424 if (!bfd_link_executable (info))
1425 return r_type;
1426
1427 if (is_local)
1428 return tilepro_tls_translate_to_le (r_type);
1429 else
1430 return tilepro_tls_translate_to_ie (r_type);
1431 }
1432
1433 /* Look through the relocs for a section during the first phase, and
1434 allocate space in the global offset table or procedure linkage
1435 table. */
1436
1437 static bfd_boolean
1438 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1439 asection *sec, const Elf_Internal_Rela *relocs)
1440 {
1441 struct tilepro_elf_link_hash_table *htab;
1442 Elf_Internal_Shdr *symtab_hdr;
1443 struct elf_link_hash_entry **sym_hashes;
1444 const Elf_Internal_Rela *rel;
1445 const Elf_Internal_Rela *rel_end;
1446 asection *sreloc;
1447 int num_relocs;
1448
1449 if (bfd_link_relocatable (info))
1450 return TRUE;
1451
1452 htab = tilepro_elf_hash_table (info);
1453 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1454 sym_hashes = elf_sym_hashes (abfd);
1455
1456 sreloc = NULL;
1457
1458 num_relocs = sec->reloc_count;
1459
1460 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1461
1462 if (htab->elf.dynobj == NULL)
1463 htab->elf.dynobj = abfd;
1464
1465 rel_end = relocs + num_relocs;
1466 for (rel = relocs; rel < rel_end; rel++)
1467 {
1468 unsigned int r_type;
1469 unsigned int r_symndx;
1470 struct elf_link_hash_entry *h;
1471 int tls_type;
1472
1473 r_symndx = ELF32_R_SYM (rel->r_info);
1474 r_type = ELF32_R_TYPE (rel->r_info);
1475
1476 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1477 {
1478 /* xgettext:c-format */
1479 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1480 abfd, r_symndx);
1481 return FALSE;
1482 }
1483
1484 if (r_symndx < symtab_hdr->sh_info)
1485 h = NULL;
1486 else
1487 {
1488 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1489 while (h->root.type == bfd_link_hash_indirect
1490 || h->root.type == bfd_link_hash_warning)
1491 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1492 }
1493
1494 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1495 switch (r_type)
1496 {
1497 case R_TILEPRO_IMM16_X0_TLS_LE:
1498 case R_TILEPRO_IMM16_X1_TLS_LE:
1499 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1500 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1501 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1502 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1503 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1504 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1505 if (!bfd_link_executable (info))
1506 goto r_tilepro_plt32;
1507 break;
1508
1509 case R_TILEPRO_IMM16_X0_TLS_GD:
1510 case R_TILEPRO_IMM16_X1_TLS_GD:
1511 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1512 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1513 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1514 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1515 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1516 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1517 BFD_ASSERT (bfd_link_pic (info));
1518 tls_type = GOT_TLS_GD;
1519 goto have_got_reference;
1520
1521 case R_TILEPRO_IMM16_X0_TLS_IE:
1522 case R_TILEPRO_IMM16_X1_TLS_IE:
1523 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1524 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1525 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1526 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1527 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1528 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1529 tls_type = GOT_TLS_IE;
1530 if (!bfd_link_executable (info))
1531 info->flags |= DF_STATIC_TLS;
1532 goto have_got_reference;
1533
1534 case R_TILEPRO_IMM16_X0_GOT:
1535 case R_TILEPRO_IMM16_X1_GOT:
1536 case R_TILEPRO_IMM16_X0_GOT_LO:
1537 case R_TILEPRO_IMM16_X1_GOT_LO:
1538 case R_TILEPRO_IMM16_X0_GOT_HI:
1539 case R_TILEPRO_IMM16_X1_GOT_HI:
1540 case R_TILEPRO_IMM16_X0_GOT_HA:
1541 case R_TILEPRO_IMM16_X1_GOT_HA:
1542 tls_type = GOT_NORMAL;
1543 /* Fall Through */
1544
1545 have_got_reference:
1546 /* This symbol requires a global offset table entry. */
1547 {
1548 int old_tls_type;
1549
1550 if (h != NULL)
1551 {
1552 h->got.refcount += 1;
1553 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1554 }
1555 else
1556 {
1557 bfd_signed_vma *local_got_refcounts;
1558
1559 /* This is a global offset table entry for a local symbol. */
1560 local_got_refcounts = elf_local_got_refcounts (abfd);
1561 if (local_got_refcounts == NULL)
1562 {
1563 bfd_size_type size;
1564
1565 size = symtab_hdr->sh_info;
1566 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1567 local_got_refcounts = ((bfd_signed_vma *)
1568 bfd_zalloc (abfd, size));
1569 if (local_got_refcounts == NULL)
1570 return FALSE;
1571 elf_local_got_refcounts (abfd) = local_got_refcounts;
1572 _bfd_tilepro_elf_local_got_tls_type (abfd)
1573 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1574 }
1575 local_got_refcounts[r_symndx] += 1;
1576 old_tls_type =
1577 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1578 }
1579
1580 /* If a TLS symbol is accessed using IE at least once,
1581 there is no point to use dynamic model for it. */
1582 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1583 && (old_tls_type != GOT_TLS_GD
1584 || tls_type != GOT_TLS_IE))
1585 {
1586 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1587 tls_type = old_tls_type;
1588 else
1589 {
1590 _bfd_error_handler
1591 /* xgettext:c-format */
1592 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1593 abfd, h ? h->root.root.string : "<local>");
1594 return FALSE;
1595 }
1596 }
1597
1598 if (old_tls_type != tls_type)
1599 {
1600 if (h != NULL)
1601 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1602 else
1603 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1604 tls_type;
1605 }
1606 }
1607
1608 if (htab->elf.sgot == NULL)
1609 {
1610 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1611 return FALSE;
1612 }
1613 break;
1614
1615 case R_TILEPRO_TLS_GD_CALL:
1616 if (!bfd_link_executable (info))
1617 {
1618 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1619 against __tls_get_addr. */
1620 struct bfd_link_hash_entry *bh = NULL;
1621 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1622 "__tls_get_addr", 0,
1623 bfd_und_section_ptr, 0,
1624 NULL, FALSE, FALSE,
1625 &bh))
1626 return FALSE;
1627 h = (struct elf_link_hash_entry *) bh;
1628 }
1629 else
1630 break;
1631 /* Fall through */
1632
1633 case R_TILEPRO_JOFFLONG_X1_PLT:
1634 /* This symbol requires a procedure linkage table entry. We
1635 actually build the entry in adjust_dynamic_symbol,
1636 because this might be a case of linking PIC code without
1637 linking in any dynamic objects, in which case we don't
1638 need to generate a procedure linkage table after all. */
1639
1640 if (h != NULL)
1641 {
1642 h->needs_plt = 1;
1643 h->plt.refcount += 1;
1644 }
1645 break;
1646
1647 case R_TILEPRO_32_PCREL:
1648 case R_TILEPRO_16_PCREL:
1649 case R_TILEPRO_8_PCREL:
1650 case R_TILEPRO_IMM16_X0_PCREL:
1651 case R_TILEPRO_IMM16_X1_PCREL:
1652 case R_TILEPRO_IMM16_X0_LO_PCREL:
1653 case R_TILEPRO_IMM16_X1_LO_PCREL:
1654 case R_TILEPRO_IMM16_X0_HI_PCREL:
1655 case R_TILEPRO_IMM16_X1_HI_PCREL:
1656 case R_TILEPRO_IMM16_X0_HA_PCREL:
1657 case R_TILEPRO_IMM16_X1_HA_PCREL:
1658 if (h != NULL)
1659 h->non_got_ref = 1;
1660
1661 if (h != NULL
1662 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1663 break;
1664 /* Fall through. */
1665
1666 case R_TILEPRO_32:
1667 case R_TILEPRO_16:
1668 case R_TILEPRO_8:
1669 case R_TILEPRO_LO16:
1670 case R_TILEPRO_HI16:
1671 case R_TILEPRO_HA16:
1672 case R_TILEPRO_COPY:
1673 case R_TILEPRO_GLOB_DAT:
1674 case R_TILEPRO_JMP_SLOT:
1675 case R_TILEPRO_RELATIVE:
1676 case R_TILEPRO_BROFF_X1:
1677 case R_TILEPRO_JOFFLONG_X1:
1678 case R_TILEPRO_IMM8_X0:
1679 case R_TILEPRO_IMM8_Y0:
1680 case R_TILEPRO_IMM8_X1:
1681 case R_TILEPRO_IMM8_Y1:
1682 case R_TILEPRO_DEST_IMM8_X1:
1683 case R_TILEPRO_MT_IMM15_X1:
1684 case R_TILEPRO_MF_IMM15_X1:
1685 case R_TILEPRO_IMM16_X0:
1686 case R_TILEPRO_IMM16_X1:
1687 case R_TILEPRO_IMM16_X0_LO:
1688 case R_TILEPRO_IMM16_X1_LO:
1689 case R_TILEPRO_IMM16_X0_HI:
1690 case R_TILEPRO_IMM16_X1_HI:
1691 case R_TILEPRO_IMM16_X0_HA:
1692 case R_TILEPRO_IMM16_X1_HA:
1693 case R_TILEPRO_MMSTART_X0:
1694 case R_TILEPRO_MMEND_X0:
1695 case R_TILEPRO_MMSTART_X1:
1696 case R_TILEPRO_MMEND_X1:
1697 case R_TILEPRO_SHAMT_X0:
1698 case R_TILEPRO_SHAMT_X1:
1699 case R_TILEPRO_SHAMT_Y0:
1700 case R_TILEPRO_SHAMT_Y1:
1701 if (h != NULL)
1702 h->non_got_ref = 1;
1703
1704 r_tilepro_plt32:
1705 if (h != NULL && !bfd_link_pic (info))
1706 {
1707 /* We may need a .plt entry if the function this reloc
1708 refers to is in a shared lib. */
1709 h->plt.refcount += 1;
1710 }
1711
1712 /* If we are creating a shared library, and this is a reloc
1713 against a global symbol, or a non PC relative reloc
1714 against a local symbol, then we need to copy the reloc
1715 into the shared library. However, if we are linking with
1716 -Bsymbolic, we do not need to copy a reloc against a
1717 global symbol which is defined in an object we are
1718 including in the link (i.e., DEF_REGULAR is set). At
1719 this point we have not seen all the input files, so it is
1720 possible that DEF_REGULAR is not set now but will be set
1721 later (it is never cleared). In case of a weak definition,
1722 DEF_REGULAR may be cleared later by a strong definition in
1723 a shared library. We account for that possibility below by
1724 storing information in the relocs_copied field of the hash
1725 table entry. A similar situation occurs when creating
1726 shared libraries and symbol visibility changes render the
1727 symbol local.
1728
1729 If on the other hand, we are creating an executable, we
1730 may need to keep relocations for symbols satisfied by a
1731 dynamic library if we manage to avoid copy relocs for the
1732 symbol. */
1733 if ((bfd_link_pic (info)
1734 && (sec->flags & SEC_ALLOC) != 0
1735 && (! tilepro_elf_howto_table[r_type].pc_relative
1736 || (h != NULL
1737 && (! info->symbolic
1738 || h->root.type == bfd_link_hash_defweak
1739 || !h->def_regular))))
1740 || (!bfd_link_pic (info)
1741 && (sec->flags & SEC_ALLOC) != 0
1742 && h != NULL
1743 && (h->root.type == bfd_link_hash_defweak
1744 || !h->def_regular)))
1745 {
1746 struct elf_dyn_relocs *p;
1747 struct elf_dyn_relocs **head;
1748
1749 /* When creating a shared object, we must copy these
1750 relocs into the output file. We create a reloc
1751 section in dynobj and make room for the reloc. */
1752 if (sreloc == NULL)
1753 {
1754 sreloc = _bfd_elf_make_dynamic_reloc_section
1755 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1756
1757 if (sreloc == NULL)
1758 return FALSE;
1759 }
1760
1761 /* If this is a global symbol, we count the number of
1762 relocations we need for this symbol. */
1763 if (h != NULL)
1764 head =
1765 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1766 else
1767 {
1768 /* Track dynamic relocs needed for local syms too.
1769 We really need local syms available to do this
1770 easily. Oh well. */
1771
1772 asection *s;
1773 void *vpp;
1774 Elf_Internal_Sym *isym;
1775
1776 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1777 abfd, r_symndx);
1778 if (isym == NULL)
1779 return FALSE;
1780
1781 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1782 if (s == NULL)
1783 s = sec;
1784
1785 vpp = &elf_section_data (s)->local_dynrel;
1786 head = (struct elf_dyn_relocs **) vpp;
1787 }
1788
1789 p = *head;
1790 if (p == NULL || p->sec != sec)
1791 {
1792 bfd_size_type amt = sizeof *p;
1793 p = ((struct elf_dyn_relocs *)
1794 bfd_alloc (htab->elf.dynobj, amt));
1795 if (p == NULL)
1796 return FALSE;
1797 p->next = *head;
1798 *head = p;
1799 p->sec = sec;
1800 p->count = 0;
1801 p->pc_count = 0;
1802 }
1803
1804 p->count += 1;
1805 if (tilepro_elf_howto_table[r_type].pc_relative)
1806 p->pc_count += 1;
1807 }
1808
1809 break;
1810
1811 case R_TILEPRO_GNU_VTINHERIT:
1812 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1813 return FALSE;
1814 break;
1815
1816 case R_TILEPRO_GNU_VTENTRY:
1817 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1818 return FALSE;
1819 break;
1820
1821 default:
1822 break;
1823 }
1824 }
1825
1826 return TRUE;
1827 }
1828
1829 \f
1830 static asection *
1831 tilepro_elf_gc_mark_hook (asection *sec,
1832 struct bfd_link_info *info,
1833 Elf_Internal_Rela *rel,
1834 struct elf_link_hash_entry *h,
1835 Elf_Internal_Sym *sym)
1836 {
1837 if (h != NULL)
1838 {
1839 switch (ELF32_R_TYPE (rel->r_info))
1840 {
1841 case R_TILEPRO_GNU_VTINHERIT:
1842 case R_TILEPRO_GNU_VTENTRY:
1843 return NULL;
1844 }
1845 }
1846
1847 /* FIXME: The test here, in check_relocs and in relocate_section
1848 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1849 if (bfd_link_pic (info))
1850 {
1851 struct bfd_link_hash_entry *bh;
1852
1853 switch (ELF32_R_TYPE (rel->r_info))
1854 {
1855 case R_TILEPRO_TLS_GD_CALL:
1856 /* This reloc implicitly references __tls_get_addr. We know
1857 another reloc will reference the same symbol as the one
1858 on this reloc, so the real symbol and section will be
1859 gc marked when processing the other reloc. That lets
1860 us handle __tls_get_addr here. */
1861 bh = NULL;
1862 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
1863 "__tls_get_addr", 0,
1864 bfd_und_section_ptr,
1865 0, NULL, FALSE,
1866 FALSE, &bh))
1867 return NULL;
1868 h = (struct elf_link_hash_entry *) bh;
1869 BFD_ASSERT (h != NULL);
1870 h->mark = 1;
1871 if (h->is_weakalias)
1872 weakdef (h)->mark = 1;
1873 sym = NULL;
1874 }
1875 }
1876
1877 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1878 }
1879
1880 /* Find dynamic relocs for H that apply to read-only sections. */
1881
1882 static asection *
1883 readonly_dynrelocs (struct elf_link_hash_entry *h)
1884 {
1885 struct elf_dyn_relocs *p;
1886
1887 for (p = tilepro_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1888 {
1889 asection *s = p->sec->output_section;
1890
1891 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1892 return p->sec;
1893 }
1894 return NULL;
1895 }
1896
1897 /* Adjust a symbol defined by a dynamic object and referenced by a
1898 regular object. The current definition is in some section of the
1899 dynamic object, but we're not including those sections. We have to
1900 change the definition to something the rest of the link can
1901 understand. */
1902
1903 static bfd_boolean
1904 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1905 struct elf_link_hash_entry *h)
1906 {
1907 struct tilepro_elf_link_hash_table *htab;
1908 asection *s, *srel;
1909
1910 htab = tilepro_elf_hash_table (info);
1911 BFD_ASSERT (htab != NULL);
1912
1913 /* Make sure we know what is going on here. */
1914 BFD_ASSERT (htab->elf.dynobj != NULL
1915 && (h->needs_plt
1916 || h->is_weakalias
1917 || (h->def_dynamic
1918 && h->ref_regular
1919 && !h->def_regular)));
1920
1921 /* If this is a function, put it in the procedure linkage table. We
1922 will fill in the contents of the procedure linkage table later
1923 (although we could actually do it here). */
1924 if (h->type == STT_FUNC || h->needs_plt)
1925 {
1926 if (h->plt.refcount <= 0
1927 || SYMBOL_CALLS_LOCAL (info, h)
1928 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1929 && h->root.type == bfd_link_hash_undefweak))
1930 {
1931 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1932 reloc in an input file, but the symbol was never referred
1933 to by a dynamic object, or if all references were garbage
1934 collected. In such a case, we don't actually need to build
1935 a procedure linkage table, and we can just do a
1936 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1937 h->plt.offset = (bfd_vma) -1;
1938 h->needs_plt = 0;
1939 }
1940
1941 return TRUE;
1942 }
1943 else
1944 h->plt.offset = (bfd_vma) -1;
1945
1946 /* If this is a weak symbol, and there is a real definition, the
1947 processor independent code will have arranged for us to see the
1948 real definition first, and we can just use the same value. */
1949 if (h->is_weakalias)
1950 {
1951 struct elf_link_hash_entry *def = weakdef (h);
1952 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1953 h->root.u.def.section = def->root.u.def.section;
1954 h->root.u.def.value = def->root.u.def.value;
1955 return TRUE;
1956 }
1957
1958 /* This is a reference to a symbol defined by a dynamic object which
1959 is not a function. */
1960
1961 /* If we are creating a shared library, we must presume that the
1962 only references to the symbol are via the global offset table.
1963 For such cases we need not do anything here; the relocations will
1964 be handled correctly by relocate_section. */
1965 if (bfd_link_pic (info))
1966 return TRUE;
1967
1968 /* If there are no references to this symbol that do not use the
1969 GOT, we don't need to generate a copy reloc. */
1970 if (!h->non_got_ref)
1971 return TRUE;
1972
1973 /* If -z nocopyreloc was given, we won't generate them either. */
1974 if (info->nocopyreloc)
1975 {
1976 h->non_got_ref = 0;
1977 return TRUE;
1978 }
1979
1980 /* If we don't find any dynamic relocs in read-only sections, then
1981 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1982 if (!readonly_dynrelocs (h))
1983 {
1984 h->non_got_ref = 0;
1985 return TRUE;
1986 }
1987
1988 /* We must allocate the symbol in our .dynbss section, which will
1989 become part of the .bss section of the executable. There will be
1990 an entry for this symbol in the .dynsym section. The dynamic
1991 object will contain position independent code, so all references
1992 from the dynamic object to this symbol will go through the global
1993 offset table. The dynamic linker will use the .dynsym entry to
1994 determine the address it must put in the global offset table, so
1995 both the dynamic object and the regular object will refer to the
1996 same memory location for the variable. */
1997
1998 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
1999 to copy the initial value out of the dynamic object and into the
2000 runtime process image. We need to remember the offset into the
2001 .rel.bss section we are going to use. */
2002 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2003 {
2004 s = htab->elf.sdynrelro;
2005 srel = htab->elf.sreldynrelro;
2006 }
2007 else
2008 {
2009 s = htab->elf.sdynbss;
2010 srel = htab->elf.srelbss;
2011 }
2012 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2013 {
2014 srel->size += TILEPRO_ELF_RELA_BYTES;
2015 h->needs_copy = 1;
2016 }
2017
2018 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2019 }
2020
2021 /* Allocate space in .plt, .got and associated reloc sections for
2022 dynamic relocs. */
2023
2024 static bfd_boolean
2025 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2026 {
2027 struct bfd_link_info *info;
2028 struct tilepro_elf_link_hash_table *htab;
2029 struct tilepro_elf_link_hash_entry *eh;
2030 struct elf_dyn_relocs *p;
2031
2032 if (h->root.type == bfd_link_hash_indirect)
2033 return TRUE;
2034
2035 info = (struct bfd_link_info *) inf;
2036 htab = tilepro_elf_hash_table (info);
2037 BFD_ASSERT (htab != NULL);
2038
2039 if (htab->elf.dynamic_sections_created
2040 && h->plt.refcount > 0)
2041 {
2042 /* Make sure this symbol is output as a dynamic symbol.
2043 Undefined weak syms won't yet be marked as dynamic. */
2044 if (h->dynindx == -1
2045 && !h->forced_local)
2046 {
2047 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2048 return FALSE;
2049 }
2050
2051 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2052 {
2053 asection *s = htab->elf.splt;
2054
2055 /* Allocate room for the header. */
2056 if (s->size == 0)
2057 {
2058 s->size = PLT_ENTRY_SIZE;
2059 }
2060
2061 h->plt.offset = s->size;
2062
2063 /* If this symbol is not defined in a regular file, and we are
2064 not generating a shared library, then set the symbol to this
2065 location in the .plt. This is required to make function
2066 pointers compare as equal between the normal executable and
2067 the shared library. */
2068 if (! bfd_link_pic (info)
2069 && !h->def_regular)
2070 {
2071 h->root.u.def.section = s;
2072 h->root.u.def.value = h->plt.offset;
2073 }
2074
2075 /* Make room for this entry. */
2076 s->size += PLT_ENTRY_SIZE;
2077
2078 /* We also need to make an entry in the .got.plt section. */
2079 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2080
2081 /* We also need to make an entry in the .rela.plt section. */
2082 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2083 }
2084 else
2085 {
2086 h->plt.offset = (bfd_vma) -1;
2087 h->needs_plt = 0;
2088 }
2089 }
2090 else
2091 {
2092 h->plt.offset = (bfd_vma) -1;
2093 h->needs_plt = 0;
2094 }
2095
2096 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2097 requiring no TLS entry. */
2098 if (h->got.refcount > 0
2099 && bfd_link_executable (info)
2100 && h->dynindx == -1
2101 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2102 h->got.offset = (bfd_vma) -1;
2103 else if (h->got.refcount > 0)
2104 {
2105 asection *s;
2106 bfd_boolean dyn;
2107 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2108
2109 /* Make sure this symbol is output as a dynamic symbol.
2110 Undefined weak syms won't yet be marked as dynamic. */
2111 if (h->dynindx == -1
2112 && !h->forced_local)
2113 {
2114 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2115 return FALSE;
2116 }
2117
2118 s = htab->elf.sgot;
2119 h->got.offset = s->size;
2120 s->size += TILEPRO_BYTES_PER_WORD;
2121 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2122 if (tls_type == GOT_TLS_GD)
2123 s->size += TILEPRO_BYTES_PER_WORD;
2124 dyn = htab->elf.dynamic_sections_created;
2125 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2126 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2127 global. */
2128 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2129 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2130 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2131 bfd_link_pic (info),
2132 h))
2133 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2134 }
2135 else
2136 h->got.offset = (bfd_vma) -1;
2137
2138 eh = (struct tilepro_elf_link_hash_entry *) h;
2139 if (eh->dyn_relocs == NULL)
2140 return TRUE;
2141
2142 /* In the shared -Bsymbolic case, discard space allocated for
2143 dynamic pc-relative relocs against symbols which turn out to be
2144 defined in regular objects. For the normal shared case, discard
2145 space for pc-relative relocs that have become local due to symbol
2146 visibility changes. */
2147
2148 if (bfd_link_pic (info))
2149 {
2150 if (SYMBOL_CALLS_LOCAL (info, h))
2151 {
2152 struct elf_dyn_relocs **pp;
2153
2154 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2155 {
2156 p->count -= p->pc_count;
2157 p->pc_count = 0;
2158 if (p->count == 0)
2159 *pp = p->next;
2160 else
2161 pp = &p->next;
2162 }
2163 }
2164
2165 /* Also discard relocs on undefined weak syms with non-default
2166 visibility. */
2167 if (eh->dyn_relocs != NULL
2168 && h->root.type == bfd_link_hash_undefweak)
2169 {
2170 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2171 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2172 eh->dyn_relocs = NULL;
2173
2174 /* Make sure undefined weak symbols are output as a dynamic
2175 symbol in PIEs. */
2176 else if (h->dynindx == -1
2177 && !h->forced_local)
2178 {
2179 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2180 return FALSE;
2181 }
2182 }
2183 }
2184 else
2185 {
2186 /* For the non-shared case, discard space for relocs against
2187 symbols which turn out to need copy relocs or are not
2188 dynamic. */
2189
2190 if (!h->non_got_ref
2191 && ((h->def_dynamic
2192 && !h->def_regular)
2193 || (htab->elf.dynamic_sections_created
2194 && (h->root.type == bfd_link_hash_undefweak
2195 || h->root.type == bfd_link_hash_undefined))))
2196 {
2197 /* Make sure this symbol is output as a dynamic symbol.
2198 Undefined weak syms won't yet be marked as dynamic. */
2199 if (h->dynindx == -1
2200 && !h->forced_local)
2201 {
2202 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2203 return FALSE;
2204 }
2205
2206 /* If that succeeded, we know we'll be keeping all the
2207 relocs. */
2208 if (h->dynindx != -1)
2209 goto keep;
2210 }
2211
2212 eh->dyn_relocs = NULL;
2213
2214 keep: ;
2215 }
2216
2217 /* Finally, allocate space. */
2218 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2219 {
2220 asection *sreloc = elf_section_data (p->sec)->sreloc;
2221 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2222 }
2223
2224 return TRUE;
2225 }
2226
2227 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2228 read-only sections. */
2229
2230 static bfd_boolean
2231 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2232 {
2233 asection *sec;
2234
2235 if (h->root.type == bfd_link_hash_indirect)
2236 return TRUE;
2237
2238 sec = readonly_dynrelocs (h);
2239 if (sec != NULL)
2240 {
2241 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2242
2243 info->flags |= DF_TEXTREL;
2244 info->callbacks->minfo
2245 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2246 sec->owner, h->root.root.string, sec);
2247
2248 /* Not an error, just cut short the traversal. */
2249 return FALSE;
2250 }
2251 return TRUE;
2252 }
2253
2254 /* Return true if the dynamic symbol for a given section should be
2255 omitted when creating a shared library. */
2256
2257 static bfd_boolean
2258 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2259 struct bfd_link_info *info,
2260 asection *p)
2261 {
2262 /* We keep the .got section symbol so that explicit relocations
2263 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2264 can be turned into relocations against the .got symbol. */
2265 if (strcmp (p->name, ".got") == 0)
2266 return FALSE;
2267
2268 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2269 }
2270
2271 /* Set the sizes of the dynamic sections. */
2272
2273 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2274
2275 static bfd_boolean
2276 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2277 struct bfd_link_info *info)
2278 {
2279 (void)output_bfd;
2280
2281 struct tilepro_elf_link_hash_table *htab;
2282 bfd *dynobj;
2283 asection *s;
2284 bfd *ibfd;
2285
2286 htab = tilepro_elf_hash_table (info);
2287 BFD_ASSERT (htab != NULL);
2288 dynobj = htab->elf.dynobj;
2289 BFD_ASSERT (dynobj != NULL);
2290
2291 if (elf_hash_table (info)->dynamic_sections_created)
2292 {
2293 /* Set the contents of the .interp section to the interpreter. */
2294 if (bfd_link_executable (info) && !info->nointerp)
2295 {
2296 s = bfd_get_linker_section (dynobj, ".interp");
2297 BFD_ASSERT (s != NULL);
2298 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2299 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2300 }
2301 }
2302
2303 /* Set up .got offsets for local syms, and space for local dynamic
2304 relocs. */
2305 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2306 {
2307 bfd_signed_vma *local_got;
2308 bfd_signed_vma *end_local_got;
2309 char *local_tls_type;
2310 bfd_size_type locsymcount;
2311 Elf_Internal_Shdr *symtab_hdr;
2312 asection *srel;
2313
2314 if (! is_tilepro_elf (ibfd))
2315 continue;
2316
2317 for (s = ibfd->sections; s != NULL; s = s->next)
2318 {
2319 struct elf_dyn_relocs *p;
2320
2321 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2322 {
2323 if (!bfd_is_abs_section (p->sec)
2324 && bfd_is_abs_section (p->sec->output_section))
2325 {
2326 /* Input section has been discarded, either because
2327 it is a copy of a linkonce section or due to
2328 linker script /DISCARD/, so we'll be discarding
2329 the relocs too. */
2330 }
2331 else if (p->count != 0)
2332 {
2333 srel = elf_section_data (p->sec)->sreloc;
2334 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2335 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2336 {
2337 info->flags |= DF_TEXTREL;
2338
2339 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2340 p->sec->owner, p->sec);
2341 }
2342 }
2343 }
2344 }
2345
2346 local_got = elf_local_got_refcounts (ibfd);
2347 if (!local_got)
2348 continue;
2349
2350 symtab_hdr = &elf_symtab_hdr (ibfd);
2351 locsymcount = symtab_hdr->sh_info;
2352 end_local_got = local_got + locsymcount;
2353 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2354 s = htab->elf.sgot;
2355 srel = htab->elf.srelgot;
2356 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2357 {
2358 if (*local_got > 0)
2359 {
2360 *local_got = s->size;
2361 s->size += TILEPRO_BYTES_PER_WORD;
2362 if (*local_tls_type == GOT_TLS_GD)
2363 s->size += TILEPRO_BYTES_PER_WORD;
2364 if (bfd_link_pic (info)
2365 || *local_tls_type == GOT_TLS_GD
2366 || *local_tls_type == GOT_TLS_IE)
2367 srel->size += TILEPRO_ELF_RELA_BYTES;
2368 }
2369 else
2370 *local_got = (bfd_vma) -1;
2371 }
2372 }
2373
2374 /* Allocate global sym .plt and .got entries, and space for global
2375 sym dynamic relocs. */
2376 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2377
2378 if (elf_hash_table (info)->dynamic_sections_created)
2379 {
2380 /* If the .got section is more than 0x8000 bytes, we add
2381 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2382 bit relocations have a greater chance of working. */
2383 if (htab->elf.sgot->size >= 0x8000
2384 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2385 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2386 }
2387
2388 if (htab->elf.sgotplt)
2389 {
2390 struct elf_link_hash_entry *got;
2391 got = elf_link_hash_lookup (elf_hash_table (info),
2392 "_GLOBAL_OFFSET_TABLE_",
2393 FALSE, FALSE, FALSE);
2394
2395 /* Don't allocate .got.plt section if there are no GOT nor PLT
2396 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2397 if ((got == NULL
2398 || !got->ref_regular_nonweak)
2399 && (htab->elf.sgotplt->size
2400 == GOTPLT_HEADER_SIZE)
2401 && (htab->elf.splt == NULL
2402 || htab->elf.splt->size == 0)
2403 && (htab->elf.sgot == NULL
2404 || (htab->elf.sgot->size
2405 == get_elf_backend_data (output_bfd)->got_header_size)))
2406 htab->elf.sgotplt->size = 0;
2407 }
2408
2409 /* The check_relocs and adjust_dynamic_symbol entry points have
2410 determined the sizes of the various dynamic sections. Allocate
2411 memory for them. */
2412 for (s = dynobj->sections; s != NULL; s = s->next)
2413 {
2414 if ((s->flags & SEC_LINKER_CREATED) == 0)
2415 continue;
2416
2417 if (s == htab->elf.splt
2418 || s == htab->elf.sgot
2419 || s == htab->elf.sgotplt
2420 || s == htab->elf.sdynbss
2421 || s == htab->elf.sdynrelro)
2422 {
2423 /* Strip this section if we don't need it; see the
2424 comment below. */
2425 }
2426 else if (strncmp (s->name, ".rela", 5) == 0)
2427 {
2428 if (s->size != 0)
2429 {
2430 /* We use the reloc_count field as a counter if we need
2431 to copy relocs into the output file. */
2432 s->reloc_count = 0;
2433 }
2434 }
2435 else
2436 {
2437 /* It's not one of our sections. */
2438 continue;
2439 }
2440
2441 if (s->size == 0)
2442 {
2443 /* If we don't need this section, strip it from the
2444 output file. This is mostly to handle .rela.bss and
2445 .rela.plt. We must create both sections in
2446 create_dynamic_sections, because they must be created
2447 before the linker maps input sections to output
2448 sections. The linker does that before
2449 adjust_dynamic_symbol is called, and it is that
2450 function which decides whether anything needs to go
2451 into these sections. */
2452 s->flags |= SEC_EXCLUDE;
2453 continue;
2454 }
2455
2456 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2457 continue;
2458
2459 /* Allocate memory for the section contents. Zero the memory
2460 for the benefit of .rela.plt, which has 4 unused entries
2461 at the beginning, and we don't want garbage. */
2462 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2463 if (s->contents == NULL)
2464 return FALSE;
2465 }
2466
2467 if (elf_hash_table (info)->dynamic_sections_created)
2468 {
2469 /* Add some entries to the .dynamic section. We fill in the
2470 values later, in tilepro_elf_finish_dynamic_sections, but we
2471 must add the entries now so that we get the correct size for
2472 the .dynamic section. The DT_DEBUG entry is filled in by the
2473 dynamic linker and used by the debugger. */
2474 #define add_dynamic_entry(TAG, VAL) \
2475 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2476
2477 if (bfd_link_executable (info))
2478 {
2479 if (!add_dynamic_entry (DT_DEBUG, 0))
2480 return FALSE;
2481 }
2482
2483 if (htab->elf.srelplt->size != 0)
2484 {
2485 if (!add_dynamic_entry (DT_PLTGOT, 0)
2486 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2487 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2488 || !add_dynamic_entry (DT_JMPREL, 0))
2489 return FALSE;
2490 }
2491
2492 if (!add_dynamic_entry (DT_RELA, 0)
2493 || !add_dynamic_entry (DT_RELASZ, 0)
2494 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2495 return FALSE;
2496
2497 /* If any dynamic relocs apply to a read-only section,
2498 then we need a DT_TEXTREL entry. */
2499 if ((info->flags & DF_TEXTREL) == 0)
2500 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2501
2502 if (info->flags & DF_TEXTREL)
2503 {
2504 if (!add_dynamic_entry (DT_TEXTREL, 0))
2505 return FALSE;
2506 }
2507 }
2508 #undef add_dynamic_entry
2509
2510 return TRUE;
2511 }
2512 \f
2513 /* Return the base VMA address which should be subtracted from real addresses
2514 when resolving @dtpoff relocation.
2515 This is PT_TLS segment p_vaddr. */
2516
2517 static bfd_vma
2518 dtpoff_base (struct bfd_link_info *info)
2519 {
2520 /* If tls_sec is NULL, we should have signalled an error already. */
2521 if (elf_hash_table (info)->tls_sec == NULL)
2522 return 0;
2523 return elf_hash_table (info)->tls_sec->vma;
2524 }
2525
2526 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2527
2528 static bfd_vma
2529 tpoff (struct bfd_link_info *info, bfd_vma address)
2530 {
2531 struct elf_link_hash_table *htab = elf_hash_table (info);
2532
2533 /* If tls_sec is NULL, we should have signalled an error already. */
2534 if (htab->tls_sec == NULL)
2535 return 0;
2536
2537 return (address - htab->tls_sec->vma);
2538 }
2539
2540 /* Replace the MASK bits in ADDR with those in INSN, for the next
2541 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2542
2543 static void
2544 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2545 const bfd_byte *insn)
2546 {
2547 int i;
2548 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2549 {
2550 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2551 }
2552 }
2553
2554 /* Mask to extract the bits corresponding to an instruction in a
2555 specific pipe of a bundle. */
2556 static const bfd_byte insn_mask_X1[] = {
2557 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2558 };
2559
2560 /* Mask to extract the bits corresponding to an instruction in a
2561 specific pipe of a bundle, minus the destination operand and the
2562 first source operand. */
2563 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2564 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2565 };
2566
2567 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2568 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2569 };
2570
2571 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2572 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2573 };
2574
2575 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2576 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2577 };
2578
2579 /* Mask to extract the first source operand of an instruction. */
2580 static const bfd_byte srca_mask_X0[] = {
2581 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2582 };
2583
2584 static const bfd_byte srca_mask_X1[] = {
2585 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2586 };
2587
2588 /* Various instructions synthesized to support tls references. */
2589
2590 /* move r0, r0 in the X1 pipe, used for tls le. */
2591 static const bfd_byte insn_tls_le_move_X1[] = {
2592 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2593 };
2594
2595 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2596 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2597 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2598 };
2599
2600 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2601 static const bfd_byte insn_tls_ie_lw_X1[] = {
2602 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2603 };
2604
2605 /* add r0, r0, tp in various pipes, used for tls ie. */
2606 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2607 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2608 };
2609 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2610 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2611 };
2612
2613 /* move r0, r0 in various pipes, used for tls gd. */
2614 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2615 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2616 };
2617 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2618 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2619 };
2620
2621 /* Relocate an TILEPRO ELF section.
2622
2623 The RELOCATE_SECTION function is called by the new ELF backend linker
2624 to handle the relocations for a section.
2625
2626 The relocs are always passed as Rela structures.
2627
2628 This function is responsible for adjusting the section contents as
2629 necessary, and (if generating a relocatable output file) adjusting
2630 the reloc addend as necessary.
2631
2632 This function does not have to worry about setting the reloc
2633 address or the reloc symbol index.
2634
2635 LOCAL_SYMS is a pointer to the swapped in local symbols.
2636
2637 LOCAL_SECTIONS is an array giving the section in the input file
2638 corresponding to the st_shndx field of each local symbol.
2639
2640 The global hash table entry for the global symbols can be found
2641 via elf_sym_hashes (input_bfd).
2642
2643 When generating relocatable output, this function must handle
2644 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2645 going to be the section symbol corresponding to the output
2646 section, which means that the addend must be adjusted
2647 accordingly. */
2648
2649 static bfd_boolean
2650 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2651 bfd *input_bfd, asection *input_section,
2652 bfd_byte *contents, Elf_Internal_Rela *relocs,
2653 Elf_Internal_Sym *local_syms,
2654 asection **local_sections)
2655 {
2656 struct tilepro_elf_link_hash_table *htab;
2657 Elf_Internal_Shdr *symtab_hdr;
2658 struct elf_link_hash_entry **sym_hashes;
2659 bfd_vma *local_got_offsets;
2660 bfd_vma got_base;
2661 asection *sreloc;
2662 Elf_Internal_Rela *rel;
2663 Elf_Internal_Rela *relend;
2664 int num_relocs;
2665
2666 htab = tilepro_elf_hash_table (info);
2667 BFD_ASSERT (htab != NULL);
2668 symtab_hdr = &elf_symtab_hdr (input_bfd);
2669 sym_hashes = elf_sym_hashes (input_bfd);
2670 local_got_offsets = elf_local_got_offsets (input_bfd);
2671
2672 if (elf_hash_table (info)->hgot == NULL)
2673 got_base = 0;
2674 else
2675 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2676
2677 sreloc = elf_section_data (input_section)->sreloc;
2678
2679 rel = relocs;
2680 num_relocs = input_section->reloc_count;
2681 relend = relocs + num_relocs;
2682 for (; rel < relend; rel++)
2683 {
2684 int r_type, tls_type;
2685 bfd_boolean is_tls_iele, is_tls_le;
2686 reloc_howto_type *howto;
2687 unsigned long r_symndx;
2688 struct elf_link_hash_entry *h;
2689 Elf_Internal_Sym *sym;
2690 tilepro_create_func create_func;
2691 asection *sec;
2692 bfd_vma relocation;
2693 bfd_reloc_status_type r;
2694 const char *name;
2695 bfd_vma off;
2696 bfd_boolean is_plt = FALSE;
2697 bfd_boolean resolved_to_zero;
2698 bfd_boolean unresolved_reloc;
2699
2700 r_type = ELF32_R_TYPE (rel->r_info);
2701 if (r_type == R_TILEPRO_GNU_VTINHERIT
2702 || r_type == R_TILEPRO_GNU_VTENTRY)
2703 continue;
2704
2705 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2706 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2707
2708 howto = tilepro_elf_howto_table + r_type;
2709
2710 /* This is a final link. */
2711 r_symndx = ELF32_R_SYM (rel->r_info);
2712 h = NULL;
2713 sym = NULL;
2714 sec = NULL;
2715 unresolved_reloc = FALSE;
2716 if (r_symndx < symtab_hdr->sh_info)
2717 {
2718 sym = local_syms + r_symndx;
2719 sec = local_sections[r_symndx];
2720 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2721 }
2722 else
2723 {
2724 bfd_boolean warned ATTRIBUTE_UNUSED;
2725 bfd_boolean ignored ATTRIBUTE_UNUSED;
2726
2727 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2728 r_symndx, symtab_hdr, sym_hashes,
2729 h, sec, relocation,
2730 unresolved_reloc, warned, ignored);
2731 if (warned)
2732 {
2733 /* To avoid generating warning messages about truncated
2734 relocations, set the relocation's address to be the same as
2735 the start of this section. */
2736 if (input_section->output_section != NULL)
2737 relocation = input_section->output_section->vma;
2738 else
2739 relocation = 0;
2740 }
2741 }
2742
2743 if (sec != NULL && discarded_section (sec))
2744 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2745 rel, 1, relend, howto, 0, contents);
2746
2747 if (bfd_link_relocatable (info))
2748 continue;
2749
2750 if (h != NULL)
2751 name = h->root.root.string;
2752 else
2753 {
2754 name = (bfd_elf_string_from_elf_section
2755 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2756 if (name == NULL || *name == '\0')
2757 name = bfd_section_name (input_bfd, sec);
2758 }
2759
2760 switch (r_type)
2761 {
2762 case R_TILEPRO_TLS_GD_CALL:
2763 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2764 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2765 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2766 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2767 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2768 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2769 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2770 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2771 tls_type = GOT_UNKNOWN;
2772 if (h == NULL && local_got_offsets)
2773 tls_type =
2774 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2775 else if (h != NULL)
2776 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2777
2778 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2779 is_tls_le = is_tls_iele && (bfd_link_executable (info)
2780 && (h == NULL || h->dynindx == -1));
2781
2782 if (r_type == R_TILEPRO_TLS_GD_CALL)
2783 {
2784 if (is_tls_le)
2785 {
2786 /* GD -> LE */
2787 tilepro_replace_insn (contents + rel->r_offset,
2788 insn_mask_X1, insn_tls_le_move_X1);
2789 continue;
2790 }
2791 else if (is_tls_iele)
2792 {
2793 /* GD -> IE */
2794 tilepro_replace_insn (contents + rel->r_offset,
2795 insn_mask_X1, insn_tls_ie_lw_X1);
2796 continue;
2797 }
2798
2799 /* GD -> GD */
2800 h = (struct elf_link_hash_entry *)
2801 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2802 FALSE, TRUE);
2803 BFD_ASSERT (h != NULL);
2804 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2805 howto = tilepro_elf_howto_table + r_type;
2806 }
2807 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2808 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2809 {
2810 if (is_tls_le)
2811 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2812 insn_tls_le_move_zero_X0X1);
2813 }
2814 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2815 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2816 {
2817 if (is_tls_le)
2818 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2819 insn_tls_le_move_zero_X0X1);
2820 }
2821 else
2822 {
2823 const bfd_byte *mask = NULL;
2824 const bfd_byte *add_insn = NULL;
2825
2826 switch (r_type)
2827 {
2828 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2829 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2830 : insn_tls_gd_add_X0X1;
2831 mask = insn_mask_X0_no_dest_no_srca;
2832 break;
2833 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2834 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2835 : insn_tls_gd_add_X0X1;
2836 mask = insn_mask_X1_no_dest_no_srca;
2837 break;
2838 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2839 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2840 : insn_tls_gd_add_Y0Y1;
2841 mask = insn_mask_Y0_no_dest_no_srca;
2842 break;
2843 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2844 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2845 : insn_tls_gd_add_Y0Y1;
2846 mask = insn_mask_Y1_no_dest_no_srca;
2847 break;
2848 }
2849
2850 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2851
2852 continue;
2853 }
2854 break;
2855 case R_TILEPRO_TLS_IE_LOAD:
2856 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
2857 /* IE -> LE */
2858 tilepro_replace_insn (contents + rel->r_offset,
2859 insn_mask_X1_no_dest_no_srca,
2860 insn_tls_le_move_X1);
2861 else
2862 /* IE -> IE */
2863 tilepro_replace_insn (contents + rel->r_offset,
2864 insn_mask_X1_no_dest_no_srca,
2865 insn_tls_ie_lw_X1);
2866 continue;
2867 break;
2868 default:
2869 break;
2870 }
2871
2872 resolved_to_zero = (h != NULL
2873 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2874
2875 switch (r_type)
2876 {
2877 case R_TILEPRO_IMM16_X0_GOT:
2878 case R_TILEPRO_IMM16_X1_GOT:
2879 case R_TILEPRO_IMM16_X0_GOT_LO:
2880 case R_TILEPRO_IMM16_X1_GOT_LO:
2881 case R_TILEPRO_IMM16_X0_GOT_HI:
2882 case R_TILEPRO_IMM16_X1_GOT_HI:
2883 case R_TILEPRO_IMM16_X0_GOT_HA:
2884 case R_TILEPRO_IMM16_X1_GOT_HA:
2885 /* Relocation is to the entry for this symbol in the global
2886 offset table. */
2887 if (htab->elf.sgot == NULL)
2888 abort ();
2889
2890 if (h != NULL)
2891 {
2892 bfd_boolean dyn;
2893
2894 off = h->got.offset;
2895 BFD_ASSERT (off != (bfd_vma) -1);
2896 dyn = elf_hash_table (info)->dynamic_sections_created;
2897
2898 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2899 bfd_link_pic (info),
2900 h)
2901 || (bfd_link_pic (info)
2902 && SYMBOL_REFERENCES_LOCAL (info, h)))
2903 {
2904 /* This is actually a static link, or it is a
2905 -Bsymbolic link and the symbol is defined
2906 locally, or the symbol was forced to be local
2907 because of a version file. We must initialize
2908 this entry in the global offset table. Since the
2909 offset must always be a multiple
2910 of 4 for 32-bit, we use the least significant bit
2911 to record whether we have initialized it already.
2912
2913 When doing a dynamic link, we create a .rela.got
2914 relocation entry to initialize the value. This
2915 is done in the finish_dynamic_symbol routine. */
2916 if ((off & 1) != 0)
2917 off &= ~1;
2918 else
2919 {
2920 bfd_put_32 (output_bfd, relocation,
2921 htab->elf.sgot->contents + off);
2922 h->got.offset |= 1;
2923 }
2924 }
2925 else
2926 unresolved_reloc = FALSE;
2927 }
2928 else
2929 {
2930 BFD_ASSERT (local_got_offsets != NULL
2931 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2932
2933 off = local_got_offsets[r_symndx];
2934
2935 /* The offset must always be a multiple of 4 on 32-bit.
2936 We use the least significant bit to record
2937 whether we have already processed this entry. */
2938 if ((off & 1) != 0)
2939 off &= ~1;
2940 else
2941 {
2942 if (bfd_link_pic (info))
2943 {
2944 asection *s;
2945 Elf_Internal_Rela outrel;
2946
2947 /* We need to generate a R_TILEPRO_RELATIVE reloc
2948 for the dynamic linker. */
2949 s = htab->elf.srelgot;
2950 BFD_ASSERT (s != NULL);
2951
2952 outrel.r_offset = (htab->elf.sgot->output_section->vma
2953 + htab->elf.sgot->output_offset
2954 + off);
2955 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2956 outrel.r_addend = relocation;
2957 relocation = 0;
2958 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2959 }
2960
2961 bfd_put_32 (output_bfd, relocation,
2962 htab->elf.sgot->contents + off);
2963 local_got_offsets[r_symndx] |= 1;
2964 }
2965 }
2966 relocation = off - got_base;
2967 break;
2968
2969 case R_TILEPRO_JOFFLONG_X1_PLT:
2970 /* Relocation is to the entry for this symbol in the
2971 procedure linkage table. */
2972 BFD_ASSERT (h != NULL);
2973
2974 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2975 {
2976 /* We didn't make a PLT entry for this symbol. This
2977 happens when statically linking PIC code, or when
2978 using -Bsymbolic. */
2979 break;
2980 }
2981
2982 relocation = (htab->elf.splt->output_section->vma
2983 + htab->elf.splt->output_offset
2984 + h->plt.offset);
2985 unresolved_reloc = FALSE;
2986 break;
2987
2988 case R_TILEPRO_32_PCREL:
2989 case R_TILEPRO_16_PCREL:
2990 case R_TILEPRO_8_PCREL:
2991 case R_TILEPRO_IMM16_X0_PCREL:
2992 case R_TILEPRO_IMM16_X1_PCREL:
2993 case R_TILEPRO_IMM16_X0_LO_PCREL:
2994 case R_TILEPRO_IMM16_X1_LO_PCREL:
2995 case R_TILEPRO_IMM16_X0_HI_PCREL:
2996 case R_TILEPRO_IMM16_X1_HI_PCREL:
2997 case R_TILEPRO_IMM16_X0_HA_PCREL:
2998 case R_TILEPRO_IMM16_X1_HA_PCREL:
2999 if (h != NULL
3000 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3001 break;
3002 /* Fall through. */
3003 case R_TILEPRO_32:
3004 case R_TILEPRO_16:
3005 case R_TILEPRO_8:
3006 case R_TILEPRO_LO16:
3007 case R_TILEPRO_HI16:
3008 case R_TILEPRO_HA16:
3009 case R_TILEPRO_COPY:
3010 case R_TILEPRO_GLOB_DAT:
3011 case R_TILEPRO_JMP_SLOT:
3012 case R_TILEPRO_RELATIVE:
3013 case R_TILEPRO_BROFF_X1:
3014 case R_TILEPRO_JOFFLONG_X1:
3015 case R_TILEPRO_IMM8_X0:
3016 case R_TILEPRO_IMM8_Y0:
3017 case R_TILEPRO_IMM8_X1:
3018 case R_TILEPRO_IMM8_Y1:
3019 case R_TILEPRO_DEST_IMM8_X1:
3020 case R_TILEPRO_MT_IMM15_X1:
3021 case R_TILEPRO_MF_IMM15_X1:
3022 case R_TILEPRO_IMM16_X0:
3023 case R_TILEPRO_IMM16_X1:
3024 case R_TILEPRO_IMM16_X0_LO:
3025 case R_TILEPRO_IMM16_X1_LO:
3026 case R_TILEPRO_IMM16_X0_HI:
3027 case R_TILEPRO_IMM16_X1_HI:
3028 case R_TILEPRO_IMM16_X0_HA:
3029 case R_TILEPRO_IMM16_X1_HA:
3030 case R_TILEPRO_MMSTART_X0:
3031 case R_TILEPRO_MMEND_X0:
3032 case R_TILEPRO_MMSTART_X1:
3033 case R_TILEPRO_MMEND_X1:
3034 case R_TILEPRO_SHAMT_X0:
3035 case R_TILEPRO_SHAMT_X1:
3036 case R_TILEPRO_SHAMT_Y0:
3037 case R_TILEPRO_SHAMT_Y1:
3038 if ((input_section->flags & SEC_ALLOC) == 0)
3039 break;
3040
3041 if ((bfd_link_pic (info)
3042 && (h == NULL
3043 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3044 && !resolved_to_zero)
3045 || h->root.type != bfd_link_hash_undefweak)
3046 && (! howto->pc_relative
3047 || !SYMBOL_CALLS_LOCAL (info, h)))
3048 || (!bfd_link_pic (info)
3049 && h != NULL
3050 && h->dynindx != -1
3051 && !h->non_got_ref
3052 && ((h->def_dynamic
3053 && !h->def_regular)
3054 || h->root.type == bfd_link_hash_undefweak
3055 || h->root.type == bfd_link_hash_undefined)))
3056 {
3057 Elf_Internal_Rela outrel;
3058 bfd_boolean skip, relocate = FALSE;
3059
3060 /* When generating a shared object, these relocations
3061 are copied into the output file to be resolved at run
3062 time. */
3063
3064 BFD_ASSERT (sreloc != NULL);
3065
3066 skip = FALSE;
3067
3068 outrel.r_offset =
3069 _bfd_elf_section_offset (output_bfd, info, input_section,
3070 rel->r_offset);
3071 if (outrel.r_offset == (bfd_vma) -1)
3072 skip = TRUE;
3073 else if (outrel.r_offset == (bfd_vma) -2)
3074 skip = TRUE, relocate = TRUE;
3075 outrel.r_offset += (input_section->output_section->vma
3076 + input_section->output_offset);
3077
3078 switch (r_type)
3079 {
3080 case R_TILEPRO_32_PCREL:
3081 case R_TILEPRO_16_PCREL:
3082 case R_TILEPRO_8_PCREL:
3083 /* If the symbol is not dynamic, we should not keep
3084 a dynamic relocation. But an .rela.* slot has been
3085 allocated for it, output R_TILEPRO_NONE.
3086 FIXME: Add code tracking needed dynamic relocs as
3087 e.g. i386 has. */
3088 if (h->dynindx == -1)
3089 skip = TRUE, relocate = TRUE;
3090 break;
3091 }
3092
3093 if (skip)
3094 memset (&outrel, 0, sizeof outrel);
3095 /* h->dynindx may be -1 if the symbol was marked to
3096 become local. */
3097 else if (h != NULL &&
3098 h->dynindx != -1
3099 && (! is_plt
3100 || !bfd_link_pic (info)
3101 || !SYMBOLIC_BIND (info, h)
3102 || !h->def_regular))
3103 {
3104 BFD_ASSERT (h->dynindx != -1);
3105 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3106 outrel.r_addend = rel->r_addend;
3107 }
3108 else
3109 {
3110 if (r_type == R_TILEPRO_32)
3111 {
3112 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3113 outrel.r_addend = relocation + rel->r_addend;
3114 }
3115 else
3116 {
3117 long indx;
3118
3119 outrel.r_addend = relocation + rel->r_addend;
3120
3121 if (is_plt)
3122 sec = htab->elf.splt;
3123
3124 if (bfd_is_abs_section (sec))
3125 indx = 0;
3126 else if (sec == NULL || sec->owner == NULL)
3127 {
3128 bfd_set_error (bfd_error_bad_value);
3129 return FALSE;
3130 }
3131 else
3132 {
3133 asection *osec;
3134
3135 /* We are turning this relocation into one
3136 against a section symbol. It would be
3137 proper to subtract the symbol's value,
3138 osec->vma, from the emitted reloc addend,
3139 but ld.so expects buggy relocs. */
3140 osec = sec->output_section;
3141 indx = elf_section_data (osec)->dynindx;
3142
3143 if (indx == 0)
3144 {
3145 osec = htab->elf.text_index_section;
3146 indx = elf_section_data (osec)->dynindx;
3147 }
3148
3149 /* FIXME: we really should be able to link non-pic
3150 shared libraries. */
3151 if (indx == 0)
3152 {
3153 BFD_FAIL ();
3154 _bfd_error_handler
3155 (_("%pB: probably compiled without -fPIC?"),
3156 input_bfd);
3157 bfd_set_error (bfd_error_bad_value);
3158 return FALSE;
3159 }
3160 }
3161
3162 outrel.r_info = ELF32_R_INFO (indx, r_type);
3163 }
3164 }
3165
3166 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3167
3168 /* This reloc will be computed at runtime, so there's no
3169 need to do anything now. */
3170 if (! relocate)
3171 continue;
3172 }
3173 break;
3174
3175 case R_TILEPRO_IMM16_X0_TLS_LE:
3176 case R_TILEPRO_IMM16_X1_TLS_LE:
3177 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3178 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3179 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3180 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3181 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3182 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3183 if (!bfd_link_executable (info))
3184 {
3185 Elf_Internal_Rela outrel;
3186 bfd_boolean skip;
3187
3188 BFD_ASSERT (sreloc != NULL);
3189 skip = FALSE;
3190 outrel.r_offset =
3191 _bfd_elf_section_offset (output_bfd, info, input_section,
3192 rel->r_offset);
3193 if (outrel.r_offset == (bfd_vma) -1)
3194 skip = TRUE;
3195 else if (outrel.r_offset == (bfd_vma) -2)
3196 skip = TRUE;
3197 outrel.r_offset += (input_section->output_section->vma
3198 + input_section->output_offset);
3199 if (skip)
3200 memset (&outrel, 0, sizeof outrel);
3201 else
3202 {
3203 outrel.r_info = ELF32_R_INFO (0, r_type);
3204 outrel.r_addend = relocation - dtpoff_base (info)
3205 + rel->r_addend;
3206 }
3207
3208 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3209 continue;
3210 }
3211 relocation = tpoff (info, relocation);
3212 break;
3213
3214 case R_TILEPRO_IMM16_X0_TLS_GD:
3215 case R_TILEPRO_IMM16_X1_TLS_GD:
3216 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3217 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3218 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3219 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3220 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3221 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3222 case R_TILEPRO_IMM16_X0_TLS_IE:
3223 case R_TILEPRO_IMM16_X1_TLS_IE:
3224 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3225 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3226 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3227 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3228 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3229 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3230 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3231 tls_type = GOT_UNKNOWN;
3232 if (h == NULL && local_got_offsets)
3233 tls_type
3234 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3235 else if (h != NULL)
3236 {
3237 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3238 if (bfd_link_executable (info)
3239 && h->dynindx == -1
3240 && tls_type == GOT_TLS_IE)
3241 r_type = tilepro_tls_translate_to_le (r_type);
3242 }
3243 if (tls_type == GOT_TLS_IE)
3244 r_type = tilepro_tls_translate_to_ie (r_type);
3245
3246 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3247 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3248 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3249 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3250 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3251 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3252 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3253 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3254 {
3255 relocation = tpoff (info, relocation);
3256 break;
3257 }
3258
3259 if (h != NULL)
3260 {
3261 off = h->got.offset;
3262 h->got.offset |= 1;
3263 }
3264 else
3265 {
3266 BFD_ASSERT (local_got_offsets != NULL);
3267 off = local_got_offsets[r_symndx];
3268 local_got_offsets[r_symndx] |= 1;
3269 }
3270
3271 if (htab->elf.sgot == NULL)
3272 abort ();
3273
3274 if ((off & 1) != 0)
3275 off &= ~1;
3276 else
3277 {
3278 Elf_Internal_Rela outrel;
3279 int indx = 0;
3280 bfd_boolean need_relocs = FALSE;
3281
3282 if (htab->elf.srelgot == NULL)
3283 abort ();
3284
3285 if (h != NULL)
3286 {
3287 bfd_boolean dyn;
3288 dyn = htab->elf.dynamic_sections_created;
3289
3290 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3291 bfd_link_pic (info),
3292 h)
3293 && (!bfd_link_pic (info)
3294 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3295 {
3296 indx = h->dynindx;
3297 }
3298 }
3299
3300 /* The GOT entries have not been initialized yet. Do it
3301 now, and emit any relocations. */
3302 if ((bfd_link_pic (info) || indx != 0)
3303 && (h == NULL
3304 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3305 || h->root.type != bfd_link_hash_undefweak))
3306 need_relocs = TRUE;
3307
3308 switch (r_type)
3309 {
3310 case R_TILEPRO_IMM16_X0_TLS_IE:
3311 case R_TILEPRO_IMM16_X1_TLS_IE:
3312 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3313 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3314 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3315 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3316 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3317 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3318 if (need_relocs) {
3319 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3320 outrel.r_offset = (htab->elf.sgot->output_section->vma
3321 + htab->elf.sgot->output_offset + off);
3322 outrel.r_addend = 0;
3323 if (indx == 0)
3324 outrel.r_addend = relocation - dtpoff_base (info);
3325 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3326 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3327 &outrel);
3328 } else {
3329 bfd_put_32 (output_bfd, tpoff (info, relocation),
3330 htab->elf.sgot->contents + off);
3331 }
3332 break;
3333
3334 case R_TILEPRO_IMM16_X0_TLS_GD:
3335 case R_TILEPRO_IMM16_X1_TLS_GD:
3336 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3337 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3338 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3339 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3340 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3341 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3342 if (need_relocs) {
3343 outrel.r_offset = (htab->elf.sgot->output_section->vma
3344 + htab->elf.sgot->output_offset + off);
3345 outrel.r_addend = 0;
3346 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3347 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3348 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3349 &outrel);
3350 if (indx == 0)
3351 {
3352 BFD_ASSERT (! unresolved_reloc);
3353 bfd_put_32 (output_bfd,
3354 relocation - dtpoff_base (info),
3355 (htab->elf.sgot->contents + off +
3356 TILEPRO_BYTES_PER_WORD));
3357 }
3358 else
3359 {
3360 bfd_put_32 (output_bfd, 0,
3361 (htab->elf.sgot->contents + off +
3362 TILEPRO_BYTES_PER_WORD));
3363 outrel.r_info = ELF32_R_INFO (indx,
3364 R_TILEPRO_TLS_DTPOFF32);
3365 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3366 tilepro_elf_append_rela_32 (output_bfd,
3367 htab->elf.srelgot, &outrel);
3368 }
3369 }
3370
3371 else {
3372 /* If we are not emitting relocations for a
3373 general dynamic reference, then we must be in a
3374 static link or an executable link with the
3375 symbol binding locally. Mark it as belonging
3376 to module 1, the executable. */
3377 bfd_put_32 (output_bfd, 1,
3378 htab->elf.sgot->contents + off );
3379 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3380 htab->elf.sgot->contents + off +
3381 TILEPRO_BYTES_PER_WORD);
3382 }
3383 break;
3384 }
3385 }
3386
3387 if (off >= (bfd_vma) -2)
3388 abort ();
3389
3390 relocation = off - got_base;
3391 unresolved_reloc = FALSE;
3392 howto = tilepro_elf_howto_table + r_type;
3393 break;
3394
3395 default:
3396 break;
3397 }
3398
3399 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3400 because such sections are not SEC_ALLOC and thus ld.so will
3401 not process them. */
3402 if (unresolved_reloc
3403 && !((input_section->flags & SEC_DEBUGGING) != 0
3404 && h->def_dynamic)
3405 && _bfd_elf_section_offset (output_bfd, info, input_section,
3406 rel->r_offset) != (bfd_vma) -1)
3407 _bfd_error_handler
3408 /* xgettext:c-format */
3409 (_("%pB(%pA+%#" PRIx64 "): "
3410 "unresolvable %s relocation against symbol `%s'"),
3411 input_bfd,
3412 input_section,
3413 (uint64_t) 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: `%pA'"), 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"
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