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ELF: Consolidate readonly_dynrelocs
[deliverable/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2020 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilepro.h"
26 #include "opcode/tilepro.h"
27 #include "libiberty.h"
28 #include "elf32-tilepro.h"
29
30 #define TILEPRO_BYTES_PER_WORD 4
31
32 static reloc_howto_type tilepro_elf_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_TILEPRO_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* TILEPRO ELF linker hash entry. */
683
684 struct tilepro_elf_link_hash_entry
685 {
686 struct elf_link_hash_entry elf;
687
688 #define GOT_UNKNOWN 0
689 #define GOT_NORMAL 1
690 #define GOT_TLS_GD 2
691 #define GOT_TLS_IE 4
692 unsigned char tls_type;
693 };
694
695 #define tilepro_elf_hash_entry(ent) \
696 ((struct tilepro_elf_link_hash_entry *)(ent))
697
698 struct _bfd_tilepro_elf_obj_tdata
699 {
700 struct elf_obj_tdata root;
701
702 /* tls_type for each local got entry. */
703 char *local_got_tls_type;
704 };
705
706 #define _bfd_tilepro_elf_tdata(abfd) \
707 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
708
709 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
710 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
711
712 #define is_tilepro_elf(bfd) \
713 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
714 && elf_tdata (bfd) != NULL \
715 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
716
717 /* Allocate TILEPro ELF private object data. */
718
719 static bfd_boolean
720 tilepro_elf_mkobject (bfd *abfd)
721 {
722 return bfd_elf_allocate_object (abfd,
723 sizeof (struct _bfd_tilepro_elf_obj_tdata),
724 TILEPRO_ELF_DATA);
725 }
726
727 #include "elf/common.h"
728 #include "elf/internal.h"
729
730 struct tilepro_elf_link_hash_table
731 {
732 struct elf_link_hash_table elf;
733
734 /* Small local sym to section mapping cache. */
735 struct sym_cache sym_cache;
736 };
737
738 /* Get the Tilepro ELF linker hash table from a link_info structure. */
739 #define tilepro_elf_hash_table(p) \
740 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
741 == TILEPRO_ELF_DATA \
742 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
743
744 static reloc_howto_type *
745 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
746 bfd_reloc_code_real_type code)
747 {
748 unsigned int i;
749
750 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
751 {
752 const reloc_map * entry;
753
754 entry = tilepro_reloc_map + i;
755
756 if (entry->bfd_reloc_val == code)
757 return entry->table + (entry->tilepro_reloc_val
758 - entry->table[0].type);
759 }
760
761 return NULL;
762 }
763
764 static reloc_howto_type *
765 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
766 const char *r_name)
767 {
768 unsigned int i;
769
770 for (i = 0;
771 i < (sizeof (tilepro_elf_howto_table)
772 / sizeof (tilepro_elf_howto_table[0]));
773 i++)
774 if (tilepro_elf_howto_table[i].name != NULL
775 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
776 return &tilepro_elf_howto_table[i];
777
778 return NULL;
779 }
780
781 /* Set the howto pointer for an TILEPro ELF reloc. */
782
783 static bfd_boolean
784 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
785 arelent * cache_ptr,
786 Elf_Internal_Rela * dst)
787 {
788 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
789
790 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
791 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
792 else if (r_type - R_TILEPRO_GNU_VTINHERIT
793 <= ((unsigned int) R_TILEPRO_GNU_VTENTRY
794 - (unsigned int) R_TILEPRO_GNU_VTINHERIT))
795 cache_ptr->howto
796 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
797 else
798 {
799 /* xgettext:c-format */
800 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
801 abfd, r_type);
802 bfd_set_error (bfd_error_bad_value);
803 return FALSE;
804 }
805 return TRUE;
806 }
807
808 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
809
810 static const tilepro_create_func reloc_to_create_func[] =
811 {
812 /* The first fourteen relocation types don't correspond to operands */
813 NULL,
814 NULL,
815 NULL,
816 NULL,
817 NULL,
818 NULL,
819 NULL,
820 NULL,
821 NULL,
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827
828 /* The remaining relocations are used for immediate operands */
829 create_BrOff_X1,
830 create_JOffLong_X1,
831 create_JOffLong_X1,
832 create_Imm8_X0,
833 create_Imm8_Y0,
834 create_Imm8_X1,
835 create_Imm8_Y1,
836 create_MT_Imm15_X1,
837 create_MF_Imm15_X1,
838 create_Imm16_X0,
839 create_Imm16_X1,
840 create_Imm16_X0,
841 create_Imm16_X1,
842 create_Imm16_X0,
843 create_Imm16_X1,
844 create_Imm16_X0,
845 create_Imm16_X1,
846 create_Imm16_X0,
847 create_Imm16_X1,
848 create_Imm16_X0,
849 create_Imm16_X1,
850 create_Imm16_X0,
851 create_Imm16_X1,
852 create_Imm16_X0,
853 create_Imm16_X1,
854 create_Imm16_X0,
855 create_Imm16_X1,
856 create_Imm16_X0,
857 create_Imm16_X1,
858 create_Imm16_X0,
859 create_Imm16_X1,
860 create_Imm16_X0,
861 create_Imm16_X1,
862 create_MMStart_X0,
863 create_MMEnd_X0,
864 create_MMStart_X1,
865 create_MMEnd_X1,
866 create_ShAmt_X0,
867 create_ShAmt_X1,
868 create_ShAmt_Y0,
869 create_ShAmt_Y1,
870
871 create_Dest_Imm8_X1,
872 NULL,
873 NULL,
874 NULL,
875 NULL,
876 NULL,
877 NULL,
878 NULL,
879 NULL,
880 NULL,
881 NULL,
882
883 create_Imm16_X0,
884 create_Imm16_X1,
885 create_Imm16_X0,
886 create_Imm16_X1,
887 create_Imm16_X0,
888 create_Imm16_X1,
889 create_Imm16_X0,
890 create_Imm16_X1,
891 create_Imm16_X0,
892 create_Imm16_X1,
893 create_Imm16_X0,
894 create_Imm16_X1,
895 create_Imm16_X0,
896 create_Imm16_X1,
897 create_Imm16_X0,
898 create_Imm16_X1,
899
900 NULL,
901 NULL,
902 NULL,
903
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908 create_Imm16_X0,
909 create_Imm16_X1,
910 create_Imm16_X0,
911 create_Imm16_X1,
912 };
913
914 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
915
916 /* Support for core dump NOTE sections. */
917
918 static bfd_boolean
919 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
920 {
921 int offset;
922 size_t size;
923
924 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
925 return FALSE;
926
927 /* pr_cursig */
928 elf_tdata (abfd)->core->signal =
929 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
930
931 /* pr_pid */
932 elf_tdata (abfd)->core->pid =
933 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
934
935 /* pr_reg */
936 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
937 size = TILEPRO_GREGSET_T_SIZE;
938
939 /* Make a ".reg/999" section. */
940 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
941 size, note->descpos + offset);
942 }
943
944 static bfd_boolean
945 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
946 {
947 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
948 return FALSE;
949
950 elf_tdata (abfd)->core->program
951 = _bfd_elfcore_strndup (abfd,
952 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
953 16);
954 elf_tdata (abfd)->core->command
955 = _bfd_elfcore_strndup (abfd,
956 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
957 ELF_PR_PSARGS_SIZE);
958
959
960 /* Note that for some reason, a spurious space is tacked
961 onto the end of the args in some (at least one anyway)
962 implementations, so strip it off if it exists. */
963 {
964 char *command = elf_tdata (abfd)->core->command;
965 int n = strlen (command);
966
967 if (0 < n && command[n - 1] == ' ')
968 command[n - 1] = '\0';
969 }
970
971 return TRUE;
972 }
973
974
975 static void
976 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
977 {
978 Elf32_External_Rela *loc32;
979
980 loc32 = (Elf32_External_Rela *) s->contents;
981 loc32 += s->reloc_count++;
982 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
983 }
984
985 /* PLT/GOT stuff */
986
987 /* The procedure linkage table starts with the following header:
988
989 {
990 rli r29, r29, 16
991 lwadd r28, r27, 4
992 }
993 lw r27, r27
994 {
995 info 10 ## SP not offset, return PC in LR
996 jr r27
997 }
998
999 Subsequent entries are the following, jumping to the header at the end:
1000
1001 lnk r28
1002 1:
1003 {
1004 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1005 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1006 }
1007 {
1008 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1009 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1010 }
1011 {
1012 auli r29, zero, MY_PLT_INDEX
1013 lw r28, r28
1014 }
1015 {
1016 info 10 ## SP not offset, return PC in LR
1017 jr r28
1018 }
1019
1020 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1021 16 bits as an unsigned offset; if we use the low bits we would get an
1022 unwanted sign extension. The PLT header then rotates the index to get the
1023 right value, before calling the resolution routine. This computation can
1024 fit in unused bundle slots so it's free.
1025
1026 This code sequence lets the code at at the start of the PLT determine
1027 which PLT entry was executed by examining 'r29'.
1028
1029 Note that MY_PLT_INDEX skips over the header entries, so the first
1030 actual jump table entry has index zero.
1031 */
1032
1033 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1034 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1035
1036 #define PLT_HEADER_SIZE \
1037 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1038 #define PLT_ENTRY_SIZE \
1039 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1040
1041 /* The size in bytes of an entry in the global offset table. */
1042
1043 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1044
1045 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1046
1047
1048 static const bfd_byte
1049 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1050 {
1051 0x5d, 0x07, 0x03, 0x70,
1052 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1053 0x00, 0x50, 0xba, 0x6d,
1054 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1055 0xff, 0xaf, 0x10, 0x50,
1056 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1057 };
1058
1059 static const bfd_byte
1060 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1061 {
1062 0x00, 0x50, 0x16, 0x70,
1063 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1064 0x1c, 0x07, 0x00, 0xa0,
1065 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1066 0xdd, 0x0f, 0x00, 0x30,
1067 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1068 0xff, 0xaf, 0x10, 0x50,
1069 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1070 0x00, 0x00, 0x00, 0x00,
1071 0x00, 0x00, 0x00, 0x00,
1072 };
1073
1074 static const bfd_byte
1075 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1076 {
1077 0x00, 0x50, 0x16, 0x70,
1078 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1079 0x1c, 0x07, 0x00, 0xb0,
1080 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1081 0x1c, 0x07, 0x00, 0xa0,
1082 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1083 0xdd, 0x0f, 0x00, 0x30,
1084 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1085 0xff, 0xaf, 0x10, 0x50,
1086 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1087 };
1088
1089 static bfd_vma
1090 tilepro_ha16(bfd_vma vma)
1091 {
1092 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1093 }
1094
1095 static int
1096 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1097 bfd_vma *r_offset)
1098 {
1099 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1100 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1101 tilepro_bundle_bits *pc;
1102
1103 /* Compute the distance from the got entry to the lnk. */
1104 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1105 + sgotplt->output_offset
1106 + got_offset
1107 - splt->output_section->vma
1108 - splt->output_offset
1109 - offset
1110 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1111
1112 /* Compute the distance to GOTPLT[0]. */
1113 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1114
1115 /* Check whether we can use the short plt entry with 16-bit offset. */
1116 bfd_boolean short_plt_entry =
1117 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1118
1119 /* Copy the plt entry template. */
1120 memcpy (splt->contents + offset,
1121 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1122 PLT_ENTRY_SIZE);
1123
1124 /* Write the immediate offsets. */
1125 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1126 pc++;
1127
1128 if (!short_plt_entry)
1129 {
1130 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1131 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1132 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1133 }
1134
1135 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1136 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1137 *pc++ |= create_Imm16_X0 (dist_got_entry)
1138 | create_Imm16_X1 (dist_got0);
1139
1140 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1141 *pc |= create_Imm16_X0 (plt_index);
1142
1143 /* Set the relocation offset. */
1144 *r_offset = got_offset;
1145
1146 return plt_index;
1147 }
1148
1149 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1150
1151
1152 /* Create an entry in an TILEPro ELF linker hash table. */
1153
1154 static struct bfd_hash_entry *
1155 link_hash_newfunc (struct bfd_hash_entry *entry,
1156 struct bfd_hash_table *table, const char *string)
1157 {
1158 /* Allocate the structure if it has not already been allocated by a
1159 subclass. */
1160 if (entry == NULL)
1161 {
1162 entry =
1163 bfd_hash_allocate (table,
1164 sizeof (struct tilepro_elf_link_hash_entry));
1165 if (entry == NULL)
1166 return entry;
1167 }
1168
1169 /* Call the allocation method of the superclass. */
1170 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1171 if (entry != NULL)
1172 {
1173 struct tilepro_elf_link_hash_entry *eh;
1174
1175 eh = (struct tilepro_elf_link_hash_entry *) entry;
1176 eh->tls_type = GOT_UNKNOWN;
1177 }
1178
1179 return entry;
1180 }
1181
1182 /* Create a TILEPRO ELF linker hash table. */
1183
1184 static struct bfd_link_hash_table *
1185 tilepro_elf_link_hash_table_create (bfd *abfd)
1186 {
1187 struct tilepro_elf_link_hash_table *ret;
1188 size_t amt = sizeof (struct tilepro_elf_link_hash_table);
1189
1190 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1191 if (ret == NULL)
1192 return NULL;
1193
1194 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1195 sizeof (struct tilepro_elf_link_hash_entry),
1196 TILEPRO_ELF_DATA))
1197 {
1198 free (ret);
1199 return NULL;
1200 }
1201
1202 return &ret->elf.root;
1203 }
1204
1205 /* Create the .got section. */
1206
1207 static bfd_boolean
1208 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1209 {
1210 flagword flags;
1211 asection *s, *s_got;
1212 struct elf_link_hash_entry *h;
1213 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1214 struct elf_link_hash_table *htab = elf_hash_table (info);
1215
1216 /* This function may be called more than once. */
1217 if (htab->sgot != NULL)
1218 return TRUE;
1219
1220 flags = bed->dynamic_sec_flags;
1221
1222 s = bfd_make_section_with_flags (abfd,
1223 (bed->rela_plts_and_copies_p
1224 ? ".rela.got" : ".rel.got"),
1225 (bed->dynamic_sec_flags
1226 | SEC_READONLY));
1227 if (s == NULL
1228 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1229 return FALSE;
1230 htab->srelgot = s;
1231
1232 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1233 if (s == NULL
1234 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1235 return FALSE;
1236 htab->sgot = s;
1237
1238 /* The first bit of the global offset table is the header. */
1239 s->size += bed->got_header_size;
1240
1241 if (bed->want_got_plt)
1242 {
1243 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1244 if (s == NULL
1245 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1246 return FALSE;
1247 htab->sgotplt = s;
1248
1249 /* Reserve room for the header. */
1250 s->size += GOTPLT_HEADER_SIZE;
1251 }
1252
1253 if (bed->want_got_sym)
1254 {
1255 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1256 section. We don't do this in the linker script because we don't want
1257 to define the symbol if we are not creating a global offset
1258 table. */
1259 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1260 "_GLOBAL_OFFSET_TABLE_");
1261 elf_hash_table (info)->hgot = h;
1262 if (h == NULL)
1263 return FALSE;
1264 }
1265
1266 return TRUE;
1267 }
1268
1269 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1270 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1271 hash table. */
1272
1273 static bfd_boolean
1274 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1275 struct bfd_link_info *info)
1276 {
1277 if (!tilepro_elf_create_got_section (dynobj, info))
1278 return FALSE;
1279
1280 return _bfd_elf_create_dynamic_sections (dynobj, info);
1281 }
1282
1283 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1284
1285 static void
1286 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1287 struct elf_link_hash_entry *dir,
1288 struct elf_link_hash_entry *ind)
1289 {
1290 struct tilepro_elf_link_hash_entry *edir, *eind;
1291
1292 edir = (struct tilepro_elf_link_hash_entry *) dir;
1293 eind = (struct tilepro_elf_link_hash_entry *) ind;
1294
1295 if (ind->dyn_relocs != NULL)
1296 {
1297 if (dir->dyn_relocs != NULL)
1298 {
1299 struct elf_dyn_relocs **pp;
1300 struct elf_dyn_relocs *p;
1301
1302 /* Add reloc counts against the indirect sym to the direct sym
1303 list. Merge any entries against the same section. */
1304 for (pp = &ind->dyn_relocs; (p = *pp) != NULL; )
1305 {
1306 struct elf_dyn_relocs *q;
1307
1308 for (q = dir->dyn_relocs; q != NULL; q = q->next)
1309 if (q->sec == p->sec)
1310 {
1311 q->pc_count += p->pc_count;
1312 q->count += p->count;
1313 *pp = p->next;
1314 break;
1315 }
1316 if (q == NULL)
1317 pp = &p->next;
1318 }
1319 *pp = dir->dyn_relocs;
1320 }
1321
1322 dir->dyn_relocs = ind->dyn_relocs;
1323 ind->dyn_relocs = NULL;
1324 }
1325
1326 if (ind->root.type == bfd_link_hash_indirect
1327 && dir->got.refcount <= 0)
1328 {
1329 edir->tls_type = eind->tls_type;
1330 eind->tls_type = GOT_UNKNOWN;
1331 }
1332 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1333 }
1334
1335 static int
1336 tilepro_tls_translate_to_le (int r_type)
1337 {
1338 switch (r_type)
1339 {
1340 case R_TILEPRO_IMM16_X0_TLS_GD:
1341 case R_TILEPRO_IMM16_X0_TLS_IE:
1342 return R_TILEPRO_IMM16_X0_TLS_LE;
1343
1344 case R_TILEPRO_IMM16_X1_TLS_GD:
1345 case R_TILEPRO_IMM16_X1_TLS_IE:
1346 return R_TILEPRO_IMM16_X1_TLS_LE;
1347
1348 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1349 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1350 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1351
1352 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1353 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1354 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1355
1356 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1357 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1358 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1359
1360 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1361 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1362 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1363
1364 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1365 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1366 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1367
1368 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1369 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1370 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1371 }
1372 return r_type;
1373 }
1374
1375 static int
1376 tilepro_tls_translate_to_ie (int r_type)
1377 {
1378 switch (r_type)
1379 {
1380 case R_TILEPRO_IMM16_X0_TLS_GD:
1381 case R_TILEPRO_IMM16_X0_TLS_IE:
1382 return R_TILEPRO_IMM16_X0_TLS_IE;
1383
1384 case R_TILEPRO_IMM16_X1_TLS_GD:
1385 case R_TILEPRO_IMM16_X1_TLS_IE:
1386 return R_TILEPRO_IMM16_X1_TLS_IE;
1387
1388 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1389 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1390 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1391
1392 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1393 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1394 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1395
1396 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1397 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1398 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1399
1400 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1401 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1402 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1403
1404 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1405 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1406 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1407
1408 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1409 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1410 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1411 }
1412 return r_type;
1413 }
1414
1415 static int
1416 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1417 int is_local)
1418 {
1419 if (!bfd_link_executable (info))
1420 return r_type;
1421
1422 if (is_local)
1423 return tilepro_tls_translate_to_le (r_type);
1424 else
1425 return tilepro_tls_translate_to_ie (r_type);
1426 }
1427
1428 /* Look through the relocs for a section during the first phase, and
1429 allocate space in the global offset table or procedure linkage
1430 table. */
1431
1432 static bfd_boolean
1433 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1434 asection *sec, const Elf_Internal_Rela *relocs)
1435 {
1436 struct tilepro_elf_link_hash_table *htab;
1437 Elf_Internal_Shdr *symtab_hdr;
1438 struct elf_link_hash_entry **sym_hashes;
1439 const Elf_Internal_Rela *rel;
1440 const Elf_Internal_Rela *rel_end;
1441 asection *sreloc;
1442 int num_relocs;
1443
1444 if (bfd_link_relocatable (info))
1445 return TRUE;
1446
1447 htab = tilepro_elf_hash_table (info);
1448 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1449 sym_hashes = elf_sym_hashes (abfd);
1450
1451 sreloc = NULL;
1452
1453 num_relocs = sec->reloc_count;
1454
1455 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1456
1457 if (htab->elf.dynobj == NULL)
1458 htab->elf.dynobj = abfd;
1459
1460 rel_end = relocs + num_relocs;
1461 for (rel = relocs; rel < rel_end; rel++)
1462 {
1463 unsigned int r_type;
1464 unsigned int r_symndx;
1465 struct elf_link_hash_entry *h;
1466 int tls_type;
1467
1468 r_symndx = ELF32_R_SYM (rel->r_info);
1469 r_type = ELF32_R_TYPE (rel->r_info);
1470
1471 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1472 {
1473 /* xgettext:c-format */
1474 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1475 abfd, r_symndx);
1476 return FALSE;
1477 }
1478
1479 if (r_symndx < symtab_hdr->sh_info)
1480 h = NULL;
1481 else
1482 {
1483 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1484 while (h->root.type == bfd_link_hash_indirect
1485 || h->root.type == bfd_link_hash_warning)
1486 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1487 }
1488
1489 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1490 switch (r_type)
1491 {
1492 case R_TILEPRO_IMM16_X0_TLS_LE:
1493 case R_TILEPRO_IMM16_X1_TLS_LE:
1494 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1495 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1496 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1497 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1498 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1499 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1500 if (!bfd_link_executable (info))
1501 goto r_tilepro_plt32;
1502 break;
1503
1504 case R_TILEPRO_IMM16_X0_TLS_GD:
1505 case R_TILEPRO_IMM16_X1_TLS_GD:
1506 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1507 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1508 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1509 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1510 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1511 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1512 BFD_ASSERT (bfd_link_pic (info));
1513 tls_type = GOT_TLS_GD;
1514 goto have_got_reference;
1515
1516 case R_TILEPRO_IMM16_X0_TLS_IE:
1517 case R_TILEPRO_IMM16_X1_TLS_IE:
1518 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1519 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1520 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1521 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1522 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1523 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1524 tls_type = GOT_TLS_IE;
1525 if (!bfd_link_executable (info))
1526 info->flags |= DF_STATIC_TLS;
1527 goto have_got_reference;
1528
1529 case R_TILEPRO_IMM16_X0_GOT:
1530 case R_TILEPRO_IMM16_X1_GOT:
1531 case R_TILEPRO_IMM16_X0_GOT_LO:
1532 case R_TILEPRO_IMM16_X1_GOT_LO:
1533 case R_TILEPRO_IMM16_X0_GOT_HI:
1534 case R_TILEPRO_IMM16_X1_GOT_HI:
1535 case R_TILEPRO_IMM16_X0_GOT_HA:
1536 case R_TILEPRO_IMM16_X1_GOT_HA:
1537 tls_type = GOT_NORMAL;
1538 /* Fall Through */
1539
1540 have_got_reference:
1541 /* This symbol requires a global offset table entry. */
1542 {
1543 int old_tls_type;
1544
1545 if (h != NULL)
1546 {
1547 h->got.refcount += 1;
1548 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1549 }
1550 else
1551 {
1552 bfd_signed_vma *local_got_refcounts;
1553
1554 /* This is a global offset table entry for a local symbol. */
1555 local_got_refcounts = elf_local_got_refcounts (abfd);
1556 if (local_got_refcounts == NULL)
1557 {
1558 bfd_size_type size;
1559
1560 size = symtab_hdr->sh_info;
1561 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1562 local_got_refcounts = ((bfd_signed_vma *)
1563 bfd_zalloc (abfd, size));
1564 if (local_got_refcounts == NULL)
1565 return FALSE;
1566 elf_local_got_refcounts (abfd) = local_got_refcounts;
1567 _bfd_tilepro_elf_local_got_tls_type (abfd)
1568 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1569 }
1570 local_got_refcounts[r_symndx] += 1;
1571 old_tls_type =
1572 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1573 }
1574
1575 /* If a TLS symbol is accessed using IE at least once,
1576 there is no point to use dynamic model for it. */
1577 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1578 && (old_tls_type != GOT_TLS_GD
1579 || tls_type != GOT_TLS_IE))
1580 {
1581 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1582 tls_type = old_tls_type;
1583 else
1584 {
1585 _bfd_error_handler
1586 /* xgettext:c-format */
1587 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1588 abfd, h ? h->root.root.string : "<local>");
1589 return FALSE;
1590 }
1591 }
1592
1593 if (old_tls_type != tls_type)
1594 {
1595 if (h != NULL)
1596 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1597 else
1598 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1599 tls_type;
1600 }
1601 }
1602
1603 if (htab->elf.sgot == NULL)
1604 {
1605 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1606 return FALSE;
1607 }
1608 break;
1609
1610 case R_TILEPRO_TLS_GD_CALL:
1611 if (!bfd_link_executable (info))
1612 {
1613 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1614 against __tls_get_addr. */
1615 struct bfd_link_hash_entry *bh = NULL;
1616 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1617 "__tls_get_addr", 0,
1618 bfd_und_section_ptr, 0,
1619 NULL, FALSE, FALSE,
1620 &bh))
1621 return FALSE;
1622 h = (struct elf_link_hash_entry *) bh;
1623 }
1624 else
1625 break;
1626 /* Fall through */
1627
1628 case R_TILEPRO_JOFFLONG_X1_PLT:
1629 /* This symbol requires a procedure linkage table entry. We
1630 actually build the entry in adjust_dynamic_symbol,
1631 because this might be a case of linking PIC code without
1632 linking in any dynamic objects, in which case we don't
1633 need to generate a procedure linkage table after all. */
1634
1635 if (h != NULL)
1636 {
1637 h->needs_plt = 1;
1638 h->plt.refcount += 1;
1639 }
1640 break;
1641
1642 case R_TILEPRO_32_PCREL:
1643 case R_TILEPRO_16_PCREL:
1644 case R_TILEPRO_8_PCREL:
1645 case R_TILEPRO_IMM16_X0_PCREL:
1646 case R_TILEPRO_IMM16_X1_PCREL:
1647 case R_TILEPRO_IMM16_X0_LO_PCREL:
1648 case R_TILEPRO_IMM16_X1_LO_PCREL:
1649 case R_TILEPRO_IMM16_X0_HI_PCREL:
1650 case R_TILEPRO_IMM16_X1_HI_PCREL:
1651 case R_TILEPRO_IMM16_X0_HA_PCREL:
1652 case R_TILEPRO_IMM16_X1_HA_PCREL:
1653 if (h != NULL)
1654 h->non_got_ref = 1;
1655
1656 if (h != NULL
1657 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1658 break;
1659 /* Fall through. */
1660
1661 case R_TILEPRO_32:
1662 case R_TILEPRO_16:
1663 case R_TILEPRO_8:
1664 case R_TILEPRO_LO16:
1665 case R_TILEPRO_HI16:
1666 case R_TILEPRO_HA16:
1667 case R_TILEPRO_COPY:
1668 case R_TILEPRO_GLOB_DAT:
1669 case R_TILEPRO_JMP_SLOT:
1670 case R_TILEPRO_RELATIVE:
1671 case R_TILEPRO_BROFF_X1:
1672 case R_TILEPRO_JOFFLONG_X1:
1673 case R_TILEPRO_IMM8_X0:
1674 case R_TILEPRO_IMM8_Y0:
1675 case R_TILEPRO_IMM8_X1:
1676 case R_TILEPRO_IMM8_Y1:
1677 case R_TILEPRO_DEST_IMM8_X1:
1678 case R_TILEPRO_MT_IMM15_X1:
1679 case R_TILEPRO_MF_IMM15_X1:
1680 case R_TILEPRO_IMM16_X0:
1681 case R_TILEPRO_IMM16_X1:
1682 case R_TILEPRO_IMM16_X0_LO:
1683 case R_TILEPRO_IMM16_X1_LO:
1684 case R_TILEPRO_IMM16_X0_HI:
1685 case R_TILEPRO_IMM16_X1_HI:
1686 case R_TILEPRO_IMM16_X0_HA:
1687 case R_TILEPRO_IMM16_X1_HA:
1688 case R_TILEPRO_MMSTART_X0:
1689 case R_TILEPRO_MMEND_X0:
1690 case R_TILEPRO_MMSTART_X1:
1691 case R_TILEPRO_MMEND_X1:
1692 case R_TILEPRO_SHAMT_X0:
1693 case R_TILEPRO_SHAMT_X1:
1694 case R_TILEPRO_SHAMT_Y0:
1695 case R_TILEPRO_SHAMT_Y1:
1696 if (h != NULL)
1697 h->non_got_ref = 1;
1698
1699 r_tilepro_plt32:
1700 if (h != NULL && !bfd_link_pic (info))
1701 {
1702 /* We may need a .plt entry if the function this reloc
1703 refers to is in a shared lib. */
1704 h->plt.refcount += 1;
1705 }
1706
1707 /* If we are creating a shared library, and this is a reloc
1708 against a global symbol, or a non PC relative reloc
1709 against a local symbol, then we need to copy the reloc
1710 into the shared library. However, if we are linking with
1711 -Bsymbolic, we do not need to copy a reloc against a
1712 global symbol which is defined in an object we are
1713 including in the link (i.e., DEF_REGULAR is set). At
1714 this point we have not seen all the input files, so it is
1715 possible that DEF_REGULAR is not set now but will be set
1716 later (it is never cleared). In case of a weak definition,
1717 DEF_REGULAR may be cleared later by a strong definition in
1718 a shared library. We account for that possibility below by
1719 storing information in the relocs_copied field of the hash
1720 table entry. A similar situation occurs when creating
1721 shared libraries and symbol visibility changes render the
1722 symbol local.
1723
1724 If on the other hand, we are creating an executable, we
1725 may need to keep relocations for symbols satisfied by a
1726 dynamic library if we manage to avoid copy relocs for the
1727 symbol. */
1728 if ((bfd_link_pic (info)
1729 && (sec->flags & SEC_ALLOC) != 0
1730 && (! tilepro_elf_howto_table[r_type].pc_relative
1731 || (h != NULL
1732 && (! info->symbolic
1733 || h->root.type == bfd_link_hash_defweak
1734 || !h->def_regular))))
1735 || (!bfd_link_pic (info)
1736 && (sec->flags & SEC_ALLOC) != 0
1737 && h != NULL
1738 && (h->root.type == bfd_link_hash_defweak
1739 || !h->def_regular)))
1740 {
1741 struct elf_dyn_relocs *p;
1742 struct elf_dyn_relocs **head;
1743
1744 /* When creating a shared object, we must copy these
1745 relocs into the output file. We create a reloc
1746 section in dynobj and make room for the reloc. */
1747 if (sreloc == NULL)
1748 {
1749 sreloc = _bfd_elf_make_dynamic_reloc_section
1750 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1751
1752 if (sreloc == NULL)
1753 return FALSE;
1754 }
1755
1756 /* If this is a global symbol, we count the number of
1757 relocations we need for this symbol. */
1758 if (h != NULL)
1759 head = &h->dyn_relocs;
1760 else
1761 {
1762 /* Track dynamic relocs needed for local syms too.
1763 We really need local syms available to do this
1764 easily. Oh well. */
1765
1766 asection *s;
1767 void *vpp;
1768 Elf_Internal_Sym *isym;
1769
1770 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1771 abfd, r_symndx);
1772 if (isym == NULL)
1773 return FALSE;
1774
1775 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1776 if (s == NULL)
1777 s = sec;
1778
1779 vpp = &elf_section_data (s)->local_dynrel;
1780 head = (struct elf_dyn_relocs **) vpp;
1781 }
1782
1783 p = *head;
1784 if (p == NULL || p->sec != sec)
1785 {
1786 size_t amt = sizeof *p;
1787 p = ((struct elf_dyn_relocs *)
1788 bfd_alloc (htab->elf.dynobj, amt));
1789 if (p == NULL)
1790 return FALSE;
1791 p->next = *head;
1792 *head = p;
1793 p->sec = sec;
1794 p->count = 0;
1795 p->pc_count = 0;
1796 }
1797
1798 p->count += 1;
1799 if (tilepro_elf_howto_table[r_type].pc_relative)
1800 p->pc_count += 1;
1801 }
1802
1803 break;
1804
1805 case R_TILEPRO_GNU_VTINHERIT:
1806 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1807 return FALSE;
1808 break;
1809
1810 case R_TILEPRO_GNU_VTENTRY:
1811 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1812 return FALSE;
1813 break;
1814
1815 default:
1816 break;
1817 }
1818 }
1819
1820 return TRUE;
1821 }
1822
1823 \f
1824 static asection *
1825 tilepro_elf_gc_mark_hook (asection *sec,
1826 struct bfd_link_info *info,
1827 Elf_Internal_Rela *rel,
1828 struct elf_link_hash_entry *h,
1829 Elf_Internal_Sym *sym)
1830 {
1831 if (h != NULL)
1832 {
1833 switch (ELF32_R_TYPE (rel->r_info))
1834 {
1835 case R_TILEPRO_GNU_VTINHERIT:
1836 case R_TILEPRO_GNU_VTENTRY:
1837 return NULL;
1838 }
1839 }
1840
1841 /* FIXME: The test here, in check_relocs and in relocate_section
1842 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1843 if (bfd_link_pic (info))
1844 {
1845 struct bfd_link_hash_entry *bh;
1846
1847 switch (ELF32_R_TYPE (rel->r_info))
1848 {
1849 case R_TILEPRO_TLS_GD_CALL:
1850 /* This reloc implicitly references __tls_get_addr. We know
1851 another reloc will reference the same symbol as the one
1852 on this reloc, so the real symbol and section will be
1853 gc marked when processing the other reloc. That lets
1854 us handle __tls_get_addr here. */
1855 bh = NULL;
1856 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
1857 "__tls_get_addr", 0,
1858 bfd_und_section_ptr,
1859 0, NULL, FALSE,
1860 FALSE, &bh))
1861 return NULL;
1862 h = (struct elf_link_hash_entry *) bh;
1863 BFD_ASSERT (h != NULL);
1864 h->mark = 1;
1865 if (h->is_weakalias)
1866 weakdef (h)->mark = 1;
1867 sym = NULL;
1868 }
1869 }
1870
1871 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1872 }
1873
1874 /* Adjust a symbol defined by a dynamic object and referenced by a
1875 regular object. The current definition is in some section of the
1876 dynamic object, but we're not including those sections. We have to
1877 change the definition to something the rest of the link can
1878 understand. */
1879
1880 static bfd_boolean
1881 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1882 struct elf_link_hash_entry *h)
1883 {
1884 struct tilepro_elf_link_hash_table *htab;
1885 asection *s, *srel;
1886
1887 htab = tilepro_elf_hash_table (info);
1888 BFD_ASSERT (htab != NULL);
1889
1890 /* Make sure we know what is going on here. */
1891 BFD_ASSERT (htab->elf.dynobj != NULL
1892 && (h->needs_plt
1893 || h->is_weakalias
1894 || (h->def_dynamic
1895 && h->ref_regular
1896 && !h->def_regular)));
1897
1898 /* If this is a function, put it in the procedure linkage table. We
1899 will fill in the contents of the procedure linkage table later
1900 (although we could actually do it here). */
1901 if (h->type == STT_FUNC || h->needs_plt)
1902 {
1903 if (h->plt.refcount <= 0
1904 || SYMBOL_CALLS_LOCAL (info, h)
1905 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1906 && h->root.type == bfd_link_hash_undefweak))
1907 {
1908 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1909 reloc in an input file, but the symbol was never referred
1910 to by a dynamic object, or if all references were garbage
1911 collected. In such a case, we don't actually need to build
1912 a procedure linkage table, and we can just do a
1913 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1914 h->plt.offset = (bfd_vma) -1;
1915 h->needs_plt = 0;
1916 }
1917
1918 return TRUE;
1919 }
1920 else
1921 h->plt.offset = (bfd_vma) -1;
1922
1923 /* If this is a weak symbol, and there is a real definition, the
1924 processor independent code will have arranged for us to see the
1925 real definition first, and we can just use the same value. */
1926 if (h->is_weakalias)
1927 {
1928 struct elf_link_hash_entry *def = weakdef (h);
1929 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1930 h->root.u.def.section = def->root.u.def.section;
1931 h->root.u.def.value = def->root.u.def.value;
1932 return TRUE;
1933 }
1934
1935 /* This is a reference to a symbol defined by a dynamic object which
1936 is not a function. */
1937
1938 /* If we are creating a shared library, we must presume that the
1939 only references to the symbol are via the global offset table.
1940 For such cases we need not do anything here; the relocations will
1941 be handled correctly by relocate_section. */
1942 if (bfd_link_pic (info))
1943 return TRUE;
1944
1945 /* If there are no references to this symbol that do not use the
1946 GOT, we don't need to generate a copy reloc. */
1947 if (!h->non_got_ref)
1948 return TRUE;
1949
1950 /* If -z nocopyreloc was given, we won't generate them either. */
1951 if (info->nocopyreloc)
1952 {
1953 h->non_got_ref = 0;
1954 return TRUE;
1955 }
1956
1957 /* If we don't find any dynamic relocs in read-only sections, then
1958 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1959 if (!_bfd_elf_readonly_dynrelocs (h))
1960 {
1961 h->non_got_ref = 0;
1962 return TRUE;
1963 }
1964
1965 /* We must allocate the symbol in our .dynbss section, which will
1966 become part of the .bss section of the executable. There will be
1967 an entry for this symbol in the .dynsym section. The dynamic
1968 object will contain position independent code, so all references
1969 from the dynamic object to this symbol will go through the global
1970 offset table. The dynamic linker will use the .dynsym entry to
1971 determine the address it must put in the global offset table, so
1972 both the dynamic object and the regular object will refer to the
1973 same memory location for the variable. */
1974
1975 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
1976 to copy the initial value out of the dynamic object and into the
1977 runtime process image. We need to remember the offset into the
1978 .rel.bss section we are going to use. */
1979 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
1980 {
1981 s = htab->elf.sdynrelro;
1982 srel = htab->elf.sreldynrelro;
1983 }
1984 else
1985 {
1986 s = htab->elf.sdynbss;
1987 srel = htab->elf.srelbss;
1988 }
1989 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1990 {
1991 srel->size += TILEPRO_ELF_RELA_BYTES;
1992 h->needs_copy = 1;
1993 }
1994
1995 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1996 }
1997
1998 /* Allocate space in .plt, .got and associated reloc sections for
1999 dynamic relocs. */
2000
2001 static bfd_boolean
2002 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2003 {
2004 struct bfd_link_info *info;
2005 struct tilepro_elf_link_hash_table *htab;
2006 struct elf_dyn_relocs *p;
2007
2008 if (h->root.type == bfd_link_hash_indirect)
2009 return TRUE;
2010
2011 info = (struct bfd_link_info *) inf;
2012 htab = tilepro_elf_hash_table (info);
2013 BFD_ASSERT (htab != NULL);
2014
2015 if (htab->elf.dynamic_sections_created
2016 && h->plt.refcount > 0)
2017 {
2018 /* Make sure this symbol is output as a dynamic symbol.
2019 Undefined weak syms won't yet be marked as dynamic. */
2020 if (h->dynindx == -1
2021 && !h->forced_local)
2022 {
2023 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2024 return FALSE;
2025 }
2026
2027 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2028 {
2029 asection *s = htab->elf.splt;
2030
2031 /* Allocate room for the header. */
2032 if (s->size == 0)
2033 {
2034 s->size = PLT_ENTRY_SIZE;
2035 }
2036
2037 h->plt.offset = s->size;
2038
2039 /* If this symbol is not defined in a regular file, and we are
2040 not generating a shared library, then set the symbol to this
2041 location in the .plt. This is required to make function
2042 pointers compare as equal between the normal executable and
2043 the shared library. */
2044 if (! bfd_link_pic (info)
2045 && !h->def_regular)
2046 {
2047 h->root.u.def.section = s;
2048 h->root.u.def.value = h->plt.offset;
2049 }
2050
2051 /* Make room for this entry. */
2052 s->size += PLT_ENTRY_SIZE;
2053
2054 /* We also need to make an entry in the .got.plt section. */
2055 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2056
2057 /* We also need to make an entry in the .rela.plt section. */
2058 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2059 }
2060 else
2061 {
2062 h->plt.offset = (bfd_vma) -1;
2063 h->needs_plt = 0;
2064 }
2065 }
2066 else
2067 {
2068 h->plt.offset = (bfd_vma) -1;
2069 h->needs_plt = 0;
2070 }
2071
2072 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2073 requiring no TLS entry. */
2074 if (h->got.refcount > 0
2075 && bfd_link_executable (info)
2076 && h->dynindx == -1
2077 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2078 h->got.offset = (bfd_vma) -1;
2079 else if (h->got.refcount > 0)
2080 {
2081 asection *s;
2082 bfd_boolean dyn;
2083 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2084
2085 /* Make sure this symbol is output as a dynamic symbol.
2086 Undefined weak syms won't yet be marked as dynamic. */
2087 if (h->dynindx == -1
2088 && !h->forced_local)
2089 {
2090 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2091 return FALSE;
2092 }
2093
2094 s = htab->elf.sgot;
2095 h->got.offset = s->size;
2096 s->size += TILEPRO_BYTES_PER_WORD;
2097 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2098 if (tls_type == GOT_TLS_GD)
2099 s->size += TILEPRO_BYTES_PER_WORD;
2100 dyn = htab->elf.dynamic_sections_created;
2101 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2102 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2103 global. */
2104 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2105 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2106 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2107 bfd_link_pic (info),
2108 h))
2109 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2110 }
2111 else
2112 h->got.offset = (bfd_vma) -1;
2113
2114 if (h->dyn_relocs == NULL)
2115 return TRUE;
2116
2117 /* In the shared -Bsymbolic case, discard space allocated for
2118 dynamic pc-relative relocs against symbols which turn out to be
2119 defined in regular objects. For the normal shared case, discard
2120 space for pc-relative relocs that have become local due to symbol
2121 visibility changes. */
2122
2123 if (bfd_link_pic (info))
2124 {
2125 if (SYMBOL_CALLS_LOCAL (info, h))
2126 {
2127 struct elf_dyn_relocs **pp;
2128
2129 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2130 {
2131 p->count -= p->pc_count;
2132 p->pc_count = 0;
2133 if (p->count == 0)
2134 *pp = p->next;
2135 else
2136 pp = &p->next;
2137 }
2138 }
2139
2140 /* Also discard relocs on undefined weak syms with non-default
2141 visibility. */
2142 if (h->dyn_relocs != NULL
2143 && h->root.type == bfd_link_hash_undefweak)
2144 {
2145 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2146 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2147 h->dyn_relocs = NULL;
2148
2149 /* Make sure undefined weak symbols are output as a dynamic
2150 symbol in PIEs. */
2151 else if (h->dynindx == -1
2152 && !h->forced_local)
2153 {
2154 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2155 return FALSE;
2156 }
2157 }
2158 }
2159 else
2160 {
2161 /* For the non-shared case, discard space for relocs against
2162 symbols which turn out to need copy relocs or are not
2163 dynamic. */
2164
2165 if (!h->non_got_ref
2166 && ((h->def_dynamic
2167 && !h->def_regular)
2168 || (htab->elf.dynamic_sections_created
2169 && (h->root.type == bfd_link_hash_undefweak
2170 || h->root.type == bfd_link_hash_undefined))))
2171 {
2172 /* Make sure this symbol is output as a dynamic symbol.
2173 Undefined weak syms won't yet be marked as dynamic. */
2174 if (h->dynindx == -1
2175 && !h->forced_local)
2176 {
2177 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2178 return FALSE;
2179 }
2180
2181 /* If that succeeded, we know we'll be keeping all the
2182 relocs. */
2183 if (h->dynindx != -1)
2184 goto keep;
2185 }
2186
2187 h->dyn_relocs = NULL;
2188
2189 keep: ;
2190 }
2191
2192 /* Finally, allocate space. */
2193 for (p = h->dyn_relocs; p != NULL; p = p->next)
2194 {
2195 asection *sreloc = elf_section_data (p->sec)->sreloc;
2196 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2197 }
2198
2199 return TRUE;
2200 }
2201
2202 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2203 read-only sections. */
2204
2205 static bfd_boolean
2206 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2207 {
2208 asection *sec;
2209
2210 if (h->root.type == bfd_link_hash_indirect)
2211 return TRUE;
2212
2213 sec = _bfd_elf_readonly_dynrelocs (h);
2214 if (sec != NULL)
2215 {
2216 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2217
2218 info->flags |= DF_TEXTREL;
2219 info->callbacks->minfo
2220 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2221 sec->owner, h->root.root.string, sec);
2222
2223 /* Not an error, just cut short the traversal. */
2224 return FALSE;
2225 }
2226 return TRUE;
2227 }
2228
2229 /* Return true if the dynamic symbol for a given section should be
2230 omitted when creating a shared library. */
2231
2232 static bfd_boolean
2233 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2234 struct bfd_link_info *info,
2235 asection *p)
2236 {
2237 /* We keep the .got section symbol so that explicit relocations
2238 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2239 can be turned into relocations against the .got symbol. */
2240 if (strcmp (p->name, ".got") == 0)
2241 return FALSE;
2242
2243 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2244 }
2245
2246 /* Set the sizes of the dynamic sections. */
2247
2248 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2249
2250 static bfd_boolean
2251 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2252 struct bfd_link_info *info)
2253 {
2254 (void)output_bfd;
2255
2256 struct tilepro_elf_link_hash_table *htab;
2257 bfd *dynobj;
2258 asection *s;
2259 bfd *ibfd;
2260
2261 htab = tilepro_elf_hash_table (info);
2262 BFD_ASSERT (htab != NULL);
2263 dynobj = htab->elf.dynobj;
2264 BFD_ASSERT (dynobj != NULL);
2265
2266 if (elf_hash_table (info)->dynamic_sections_created)
2267 {
2268 /* Set the contents of the .interp section to the interpreter. */
2269 if (bfd_link_executable (info) && !info->nointerp)
2270 {
2271 s = bfd_get_linker_section (dynobj, ".interp");
2272 BFD_ASSERT (s != NULL);
2273 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2274 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2275 }
2276 }
2277
2278 /* Set up .got offsets for local syms, and space for local dynamic
2279 relocs. */
2280 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2281 {
2282 bfd_signed_vma *local_got;
2283 bfd_signed_vma *end_local_got;
2284 char *local_tls_type;
2285 bfd_size_type locsymcount;
2286 Elf_Internal_Shdr *symtab_hdr;
2287 asection *srel;
2288
2289 if (! is_tilepro_elf (ibfd))
2290 continue;
2291
2292 for (s = ibfd->sections; s != NULL; s = s->next)
2293 {
2294 struct elf_dyn_relocs *p;
2295
2296 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2297 {
2298 if (!bfd_is_abs_section (p->sec)
2299 && bfd_is_abs_section (p->sec->output_section))
2300 {
2301 /* Input section has been discarded, either because
2302 it is a copy of a linkonce section or due to
2303 linker script /DISCARD/, so we'll be discarding
2304 the relocs too. */
2305 }
2306 else if (p->count != 0)
2307 {
2308 srel = elf_section_data (p->sec)->sreloc;
2309 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2310 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2311 {
2312 info->flags |= DF_TEXTREL;
2313
2314 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2315 p->sec->owner, p->sec);
2316 }
2317 }
2318 }
2319 }
2320
2321 local_got = elf_local_got_refcounts (ibfd);
2322 if (!local_got)
2323 continue;
2324
2325 symtab_hdr = &elf_symtab_hdr (ibfd);
2326 locsymcount = symtab_hdr->sh_info;
2327 end_local_got = local_got + locsymcount;
2328 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2329 s = htab->elf.sgot;
2330 srel = htab->elf.srelgot;
2331 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2332 {
2333 if (*local_got > 0)
2334 {
2335 *local_got = s->size;
2336 s->size += TILEPRO_BYTES_PER_WORD;
2337 if (*local_tls_type == GOT_TLS_GD)
2338 s->size += TILEPRO_BYTES_PER_WORD;
2339 if (bfd_link_pic (info)
2340 || *local_tls_type == GOT_TLS_GD
2341 || *local_tls_type == GOT_TLS_IE)
2342 srel->size += TILEPRO_ELF_RELA_BYTES;
2343 }
2344 else
2345 *local_got = (bfd_vma) -1;
2346 }
2347 }
2348
2349 /* Allocate global sym .plt and .got entries, and space for global
2350 sym dynamic relocs. */
2351 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2352
2353 if (elf_hash_table (info)->dynamic_sections_created)
2354 {
2355 /* If the .got section is more than 0x8000 bytes, we add
2356 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2357 bit relocations have a greater chance of working. */
2358 if (htab->elf.sgot->size >= 0x8000
2359 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2360 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2361 }
2362
2363 if (htab->elf.sgotplt)
2364 {
2365 struct elf_link_hash_entry *got;
2366 got = elf_link_hash_lookup (elf_hash_table (info),
2367 "_GLOBAL_OFFSET_TABLE_",
2368 FALSE, FALSE, FALSE);
2369
2370 /* Don't allocate .got.plt section if there are no GOT nor PLT
2371 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2372 if ((got == NULL
2373 || !got->ref_regular_nonweak)
2374 && (htab->elf.sgotplt->size
2375 == GOTPLT_HEADER_SIZE)
2376 && (htab->elf.splt == NULL
2377 || htab->elf.splt->size == 0)
2378 && (htab->elf.sgot == NULL
2379 || (htab->elf.sgot->size
2380 == get_elf_backend_data (output_bfd)->got_header_size)))
2381 htab->elf.sgotplt->size = 0;
2382 }
2383
2384 /* The check_relocs and adjust_dynamic_symbol entry points have
2385 determined the sizes of the various dynamic sections. Allocate
2386 memory for them. */
2387 for (s = dynobj->sections; s != NULL; s = s->next)
2388 {
2389 if ((s->flags & SEC_LINKER_CREATED) == 0)
2390 continue;
2391
2392 if (s == htab->elf.splt
2393 || s == htab->elf.sgot
2394 || s == htab->elf.sgotplt
2395 || s == htab->elf.sdynbss
2396 || s == htab->elf.sdynrelro)
2397 {
2398 /* Strip this section if we don't need it; see the
2399 comment below. */
2400 }
2401 else if (strncmp (s->name, ".rela", 5) == 0)
2402 {
2403 if (s->size != 0)
2404 {
2405 /* We use the reloc_count field as a counter if we need
2406 to copy relocs into the output file. */
2407 s->reloc_count = 0;
2408 }
2409 }
2410 else
2411 {
2412 /* It's not one of our sections. */
2413 continue;
2414 }
2415
2416 if (s->size == 0)
2417 {
2418 /* If we don't need this section, strip it from the
2419 output file. This is mostly to handle .rela.bss and
2420 .rela.plt. We must create both sections in
2421 create_dynamic_sections, because they must be created
2422 before the linker maps input sections to output
2423 sections. The linker does that before
2424 adjust_dynamic_symbol is called, and it is that
2425 function which decides whether anything needs to go
2426 into these sections. */
2427 s->flags |= SEC_EXCLUDE;
2428 continue;
2429 }
2430
2431 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2432 continue;
2433
2434 /* Allocate memory for the section contents. Zero the memory
2435 for the benefit of .rela.plt, which has 4 unused entries
2436 at the beginning, and we don't want garbage. */
2437 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2438 if (s->contents == NULL)
2439 return FALSE;
2440 }
2441
2442 if (elf_hash_table (info)->dynamic_sections_created)
2443 {
2444 /* Add some entries to the .dynamic section. We fill in the
2445 values later, in tilepro_elf_finish_dynamic_sections, but we
2446 must add the entries now so that we get the correct size for
2447 the .dynamic section. The DT_DEBUG entry is filled in by the
2448 dynamic linker and used by the debugger. */
2449 #define add_dynamic_entry(TAG, VAL) \
2450 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2451
2452 if (bfd_link_executable (info))
2453 {
2454 if (!add_dynamic_entry (DT_DEBUG, 0))
2455 return FALSE;
2456 }
2457
2458 if (htab->elf.srelplt->size != 0)
2459 {
2460 if (!add_dynamic_entry (DT_PLTGOT, 0)
2461 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2462 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2463 || !add_dynamic_entry (DT_JMPREL, 0))
2464 return FALSE;
2465 }
2466
2467 if (!add_dynamic_entry (DT_RELA, 0)
2468 || !add_dynamic_entry (DT_RELASZ, 0)
2469 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2470 return FALSE;
2471
2472 /* If any dynamic relocs apply to a read-only section,
2473 then we need a DT_TEXTREL entry. */
2474 if ((info->flags & DF_TEXTREL) == 0)
2475 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2476
2477 if (info->flags & DF_TEXTREL)
2478 {
2479 if (!add_dynamic_entry (DT_TEXTREL, 0))
2480 return FALSE;
2481 }
2482 }
2483 #undef add_dynamic_entry
2484
2485 return TRUE;
2486 }
2487 \f
2488 /* Return the base VMA address which should be subtracted from real addresses
2489 when resolving @dtpoff relocation.
2490 This is PT_TLS segment p_vaddr. */
2491
2492 static bfd_vma
2493 dtpoff_base (struct bfd_link_info *info)
2494 {
2495 /* If tls_sec is NULL, we should have signalled an error already. */
2496 if (elf_hash_table (info)->tls_sec == NULL)
2497 return 0;
2498 return elf_hash_table (info)->tls_sec->vma;
2499 }
2500
2501 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2502
2503 static bfd_vma
2504 tpoff (struct bfd_link_info *info, bfd_vma address)
2505 {
2506 struct elf_link_hash_table *htab = elf_hash_table (info);
2507
2508 /* If tls_sec is NULL, we should have signalled an error already. */
2509 if (htab->tls_sec == NULL)
2510 return 0;
2511
2512 return (address - htab->tls_sec->vma);
2513 }
2514
2515 /* Replace the MASK bits in ADDR with those in INSN, for the next
2516 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2517
2518 static void
2519 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2520 const bfd_byte *insn)
2521 {
2522 int i;
2523 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2524 {
2525 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2526 }
2527 }
2528
2529 /* Mask to extract the bits corresponding to an instruction in a
2530 specific pipe of a bundle. */
2531 static const bfd_byte insn_mask_X1[] = {
2532 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2533 };
2534
2535 /* Mask to extract the bits corresponding to an instruction in a
2536 specific pipe of a bundle, minus the destination operand and the
2537 first source operand. */
2538 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2539 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2540 };
2541
2542 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2543 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2544 };
2545
2546 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2547 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2548 };
2549
2550 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2551 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2552 };
2553
2554 /* Mask to extract the first source operand of an instruction. */
2555 static const bfd_byte srca_mask_X0[] = {
2556 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2557 };
2558
2559 static const bfd_byte srca_mask_X1[] = {
2560 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2561 };
2562
2563 /* Various instructions synthesized to support tls references. */
2564
2565 /* move r0, r0 in the X1 pipe, used for tls le. */
2566 static const bfd_byte insn_tls_le_move_X1[] = {
2567 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2568 };
2569
2570 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2571 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2572 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2573 };
2574
2575 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2576 static const bfd_byte insn_tls_ie_lw_X1[] = {
2577 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2578 };
2579
2580 /* add r0, r0, tp in various pipes, used for tls ie. */
2581 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2582 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2583 };
2584 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2585 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2586 };
2587
2588 /* move r0, r0 in various pipes, used for tls gd. */
2589 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2590 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2591 };
2592 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2593 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2594 };
2595
2596 /* Relocate an TILEPRO ELF section.
2597
2598 The RELOCATE_SECTION function is called by the new ELF backend linker
2599 to handle the relocations for a section.
2600
2601 The relocs are always passed as Rela structures.
2602
2603 This function is responsible for adjusting the section contents as
2604 necessary, and (if generating a relocatable output file) adjusting
2605 the reloc addend as necessary.
2606
2607 This function does not have to worry about setting the reloc
2608 address or the reloc symbol index.
2609
2610 LOCAL_SYMS is a pointer to the swapped in local symbols.
2611
2612 LOCAL_SECTIONS is an array giving the section in the input file
2613 corresponding to the st_shndx field of each local symbol.
2614
2615 The global hash table entry for the global symbols can be found
2616 via elf_sym_hashes (input_bfd).
2617
2618 When generating relocatable output, this function must handle
2619 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2620 going to be the section symbol corresponding to the output
2621 section, which means that the addend must be adjusted
2622 accordingly. */
2623
2624 static bfd_boolean
2625 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2626 bfd *input_bfd, asection *input_section,
2627 bfd_byte *contents, Elf_Internal_Rela *relocs,
2628 Elf_Internal_Sym *local_syms,
2629 asection **local_sections)
2630 {
2631 struct tilepro_elf_link_hash_table *htab;
2632 Elf_Internal_Shdr *symtab_hdr;
2633 struct elf_link_hash_entry **sym_hashes;
2634 bfd_vma *local_got_offsets;
2635 bfd_vma got_base;
2636 asection *sreloc;
2637 Elf_Internal_Rela *rel;
2638 Elf_Internal_Rela *relend;
2639 int num_relocs;
2640
2641 htab = tilepro_elf_hash_table (info);
2642 BFD_ASSERT (htab != NULL);
2643 symtab_hdr = &elf_symtab_hdr (input_bfd);
2644 sym_hashes = elf_sym_hashes (input_bfd);
2645 local_got_offsets = elf_local_got_offsets (input_bfd);
2646
2647 if (elf_hash_table (info)->hgot == NULL)
2648 got_base = 0;
2649 else
2650 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2651
2652 sreloc = elf_section_data (input_section)->sreloc;
2653
2654 rel = relocs;
2655 num_relocs = input_section->reloc_count;
2656 relend = relocs + num_relocs;
2657 for (; rel < relend; rel++)
2658 {
2659 int r_type, tls_type;
2660 bfd_boolean is_tls_iele, is_tls_le;
2661 reloc_howto_type *howto;
2662 unsigned long r_symndx;
2663 struct elf_link_hash_entry *h;
2664 Elf_Internal_Sym *sym;
2665 tilepro_create_func create_func;
2666 asection *sec;
2667 bfd_vma relocation;
2668 bfd_reloc_status_type r;
2669 const char *name;
2670 bfd_vma off;
2671 bfd_boolean is_plt = FALSE;
2672 bfd_boolean resolved_to_zero;
2673 bfd_boolean unresolved_reloc;
2674
2675 r_type = ELF32_R_TYPE (rel->r_info);
2676 if (r_type == R_TILEPRO_GNU_VTINHERIT
2677 || r_type == R_TILEPRO_GNU_VTENTRY)
2678 continue;
2679
2680 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2681 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2682
2683 howto = tilepro_elf_howto_table + r_type;
2684
2685 /* This is a final link. */
2686 r_symndx = ELF32_R_SYM (rel->r_info);
2687 h = NULL;
2688 sym = NULL;
2689 sec = NULL;
2690 unresolved_reloc = FALSE;
2691 if (r_symndx < symtab_hdr->sh_info)
2692 {
2693 sym = local_syms + r_symndx;
2694 sec = local_sections[r_symndx];
2695 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2696 }
2697 else
2698 {
2699 bfd_boolean warned ATTRIBUTE_UNUSED;
2700 bfd_boolean ignored ATTRIBUTE_UNUSED;
2701
2702 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2703 r_symndx, symtab_hdr, sym_hashes,
2704 h, sec, relocation,
2705 unresolved_reloc, warned, ignored);
2706 if (warned)
2707 {
2708 /* To avoid generating warning messages about truncated
2709 relocations, set the relocation's address to be the same as
2710 the start of this section. */
2711 if (input_section->output_section != NULL)
2712 relocation = input_section->output_section->vma;
2713 else
2714 relocation = 0;
2715 }
2716 }
2717
2718 if (sec != NULL && discarded_section (sec))
2719 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2720 rel, 1, relend, howto, 0, contents);
2721
2722 if (bfd_link_relocatable (info))
2723 continue;
2724
2725 if (h != NULL)
2726 name = h->root.root.string;
2727 else
2728 {
2729 name = (bfd_elf_string_from_elf_section
2730 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2731 if (name == NULL || *name == '\0')
2732 name = bfd_section_name (sec);
2733 }
2734
2735 switch (r_type)
2736 {
2737 case R_TILEPRO_TLS_GD_CALL:
2738 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2739 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2740 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2741 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2742 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2743 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2744 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2745 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2746 tls_type = GOT_UNKNOWN;
2747 if (h == NULL && local_got_offsets)
2748 tls_type =
2749 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2750 else if (h != NULL)
2751 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2752
2753 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2754 is_tls_le = is_tls_iele && (bfd_link_executable (info)
2755 && (h == NULL || h->dynindx == -1));
2756
2757 if (r_type == R_TILEPRO_TLS_GD_CALL)
2758 {
2759 if (is_tls_le)
2760 {
2761 /* GD -> LE */
2762 tilepro_replace_insn (contents + rel->r_offset,
2763 insn_mask_X1, insn_tls_le_move_X1);
2764 continue;
2765 }
2766 else if (is_tls_iele)
2767 {
2768 /* GD -> IE */
2769 tilepro_replace_insn (contents + rel->r_offset,
2770 insn_mask_X1, insn_tls_ie_lw_X1);
2771 continue;
2772 }
2773
2774 /* GD -> GD */
2775 h = (struct elf_link_hash_entry *)
2776 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2777 FALSE, TRUE);
2778 BFD_ASSERT (h != NULL);
2779 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2780 howto = tilepro_elf_howto_table + r_type;
2781 }
2782 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2783 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2784 {
2785 if (is_tls_le)
2786 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2787 insn_tls_le_move_zero_X0X1);
2788 }
2789 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2790 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2791 {
2792 if (is_tls_le)
2793 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2794 insn_tls_le_move_zero_X0X1);
2795 }
2796 else
2797 {
2798 const bfd_byte *mask = NULL;
2799 const bfd_byte *add_insn = NULL;
2800
2801 switch (r_type)
2802 {
2803 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2804 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2805 : insn_tls_gd_add_X0X1;
2806 mask = insn_mask_X0_no_dest_no_srca;
2807 break;
2808 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2809 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2810 : insn_tls_gd_add_X0X1;
2811 mask = insn_mask_X1_no_dest_no_srca;
2812 break;
2813 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2814 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2815 : insn_tls_gd_add_Y0Y1;
2816 mask = insn_mask_Y0_no_dest_no_srca;
2817 break;
2818 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2819 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2820 : insn_tls_gd_add_Y0Y1;
2821 mask = insn_mask_Y1_no_dest_no_srca;
2822 break;
2823 }
2824
2825 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2826
2827 continue;
2828 }
2829 break;
2830 case R_TILEPRO_TLS_IE_LOAD:
2831 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
2832 /* IE -> LE */
2833 tilepro_replace_insn (contents + rel->r_offset,
2834 insn_mask_X1_no_dest_no_srca,
2835 insn_tls_le_move_X1);
2836 else
2837 /* IE -> IE */
2838 tilepro_replace_insn (contents + rel->r_offset,
2839 insn_mask_X1_no_dest_no_srca,
2840 insn_tls_ie_lw_X1);
2841 continue;
2842 break;
2843 default:
2844 break;
2845 }
2846
2847 resolved_to_zero = (h != NULL
2848 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2849
2850 switch (r_type)
2851 {
2852 case R_TILEPRO_IMM16_X0_GOT:
2853 case R_TILEPRO_IMM16_X1_GOT:
2854 case R_TILEPRO_IMM16_X0_GOT_LO:
2855 case R_TILEPRO_IMM16_X1_GOT_LO:
2856 case R_TILEPRO_IMM16_X0_GOT_HI:
2857 case R_TILEPRO_IMM16_X1_GOT_HI:
2858 case R_TILEPRO_IMM16_X0_GOT_HA:
2859 case R_TILEPRO_IMM16_X1_GOT_HA:
2860 /* Relocation is to the entry for this symbol in the global
2861 offset table. */
2862 if (htab->elf.sgot == NULL)
2863 abort ();
2864
2865 if (h != NULL)
2866 {
2867 bfd_boolean dyn;
2868
2869 off = h->got.offset;
2870 BFD_ASSERT (off != (bfd_vma) -1);
2871 dyn = elf_hash_table (info)->dynamic_sections_created;
2872
2873 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2874 bfd_link_pic (info),
2875 h)
2876 || (bfd_link_pic (info)
2877 && SYMBOL_REFERENCES_LOCAL (info, h)))
2878 {
2879 /* This is actually a static link, or it is a
2880 -Bsymbolic link and the symbol is defined
2881 locally, or the symbol was forced to be local
2882 because of a version file. We must initialize
2883 this entry in the global offset table. Since the
2884 offset must always be a multiple
2885 of 4 for 32-bit, we use the least significant bit
2886 to record whether we have initialized it already.
2887
2888 When doing a dynamic link, we create a .rela.got
2889 relocation entry to initialize the value. This
2890 is done in the finish_dynamic_symbol routine. */
2891 if ((off & 1) != 0)
2892 off &= ~1;
2893 else
2894 {
2895 bfd_put_32 (output_bfd, relocation,
2896 htab->elf.sgot->contents + off);
2897 h->got.offset |= 1;
2898 }
2899 }
2900 else
2901 unresolved_reloc = FALSE;
2902 }
2903 else
2904 {
2905 BFD_ASSERT (local_got_offsets != NULL
2906 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2907
2908 off = local_got_offsets[r_symndx];
2909
2910 /* The offset must always be a multiple of 4 on 32-bit.
2911 We use the least significant bit to record
2912 whether we have already processed this entry. */
2913 if ((off & 1) != 0)
2914 off &= ~1;
2915 else
2916 {
2917 if (bfd_link_pic (info))
2918 {
2919 asection *s;
2920 Elf_Internal_Rela outrel;
2921
2922 /* We need to generate a R_TILEPRO_RELATIVE reloc
2923 for the dynamic linker. */
2924 s = htab->elf.srelgot;
2925 BFD_ASSERT (s != NULL);
2926
2927 outrel.r_offset = (htab->elf.sgot->output_section->vma
2928 + htab->elf.sgot->output_offset
2929 + off);
2930 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2931 outrel.r_addend = relocation;
2932 relocation = 0;
2933 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2934 }
2935
2936 bfd_put_32 (output_bfd, relocation,
2937 htab->elf.sgot->contents + off);
2938 local_got_offsets[r_symndx] |= 1;
2939 }
2940 }
2941 relocation = off - got_base;
2942 break;
2943
2944 case R_TILEPRO_JOFFLONG_X1_PLT:
2945 /* Relocation is to the entry for this symbol in the
2946 procedure linkage table. */
2947 BFD_ASSERT (h != NULL);
2948
2949 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2950 {
2951 /* We didn't make a PLT entry for this symbol. This
2952 happens when statically linking PIC code, or when
2953 using -Bsymbolic. */
2954 break;
2955 }
2956
2957 relocation = (htab->elf.splt->output_section->vma
2958 + htab->elf.splt->output_offset
2959 + h->plt.offset);
2960 unresolved_reloc = FALSE;
2961 break;
2962
2963 case R_TILEPRO_32_PCREL:
2964 case R_TILEPRO_16_PCREL:
2965 case R_TILEPRO_8_PCREL:
2966 case R_TILEPRO_IMM16_X0_PCREL:
2967 case R_TILEPRO_IMM16_X1_PCREL:
2968 case R_TILEPRO_IMM16_X0_LO_PCREL:
2969 case R_TILEPRO_IMM16_X1_LO_PCREL:
2970 case R_TILEPRO_IMM16_X0_HI_PCREL:
2971 case R_TILEPRO_IMM16_X1_HI_PCREL:
2972 case R_TILEPRO_IMM16_X0_HA_PCREL:
2973 case R_TILEPRO_IMM16_X1_HA_PCREL:
2974 if (h != NULL
2975 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2976 break;
2977 /* Fall through. */
2978 case R_TILEPRO_32:
2979 case R_TILEPRO_16:
2980 case R_TILEPRO_8:
2981 case R_TILEPRO_LO16:
2982 case R_TILEPRO_HI16:
2983 case R_TILEPRO_HA16:
2984 case R_TILEPRO_COPY:
2985 case R_TILEPRO_GLOB_DAT:
2986 case R_TILEPRO_JMP_SLOT:
2987 case R_TILEPRO_RELATIVE:
2988 case R_TILEPRO_BROFF_X1:
2989 case R_TILEPRO_JOFFLONG_X1:
2990 case R_TILEPRO_IMM8_X0:
2991 case R_TILEPRO_IMM8_Y0:
2992 case R_TILEPRO_IMM8_X1:
2993 case R_TILEPRO_IMM8_Y1:
2994 case R_TILEPRO_DEST_IMM8_X1:
2995 case R_TILEPRO_MT_IMM15_X1:
2996 case R_TILEPRO_MF_IMM15_X1:
2997 case R_TILEPRO_IMM16_X0:
2998 case R_TILEPRO_IMM16_X1:
2999 case R_TILEPRO_IMM16_X0_LO:
3000 case R_TILEPRO_IMM16_X1_LO:
3001 case R_TILEPRO_IMM16_X0_HI:
3002 case R_TILEPRO_IMM16_X1_HI:
3003 case R_TILEPRO_IMM16_X0_HA:
3004 case R_TILEPRO_IMM16_X1_HA:
3005 case R_TILEPRO_MMSTART_X0:
3006 case R_TILEPRO_MMEND_X0:
3007 case R_TILEPRO_MMSTART_X1:
3008 case R_TILEPRO_MMEND_X1:
3009 case R_TILEPRO_SHAMT_X0:
3010 case R_TILEPRO_SHAMT_X1:
3011 case R_TILEPRO_SHAMT_Y0:
3012 case R_TILEPRO_SHAMT_Y1:
3013 if ((input_section->flags & SEC_ALLOC) == 0)
3014 break;
3015
3016 if ((bfd_link_pic (info)
3017 && (h == NULL
3018 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3019 && !resolved_to_zero)
3020 || h->root.type != bfd_link_hash_undefweak)
3021 && (! howto->pc_relative
3022 || !SYMBOL_CALLS_LOCAL (info, h)))
3023 || (!bfd_link_pic (info)
3024 && h != NULL
3025 && h->dynindx != -1
3026 && !h->non_got_ref
3027 && ((h->def_dynamic
3028 && !h->def_regular)
3029 || h->root.type == bfd_link_hash_undefweak
3030 || h->root.type == bfd_link_hash_undefined)))
3031 {
3032 Elf_Internal_Rela outrel;
3033 bfd_boolean skip, relocate = FALSE;
3034
3035 /* When generating a shared object, these relocations
3036 are copied into the output file to be resolved at run
3037 time. */
3038
3039 BFD_ASSERT (sreloc != NULL);
3040
3041 skip = FALSE;
3042
3043 outrel.r_offset =
3044 _bfd_elf_section_offset (output_bfd, info, input_section,
3045 rel->r_offset);
3046 if (outrel.r_offset == (bfd_vma) -1)
3047 skip = TRUE;
3048 else if (outrel.r_offset == (bfd_vma) -2)
3049 skip = TRUE, relocate = TRUE;
3050 outrel.r_offset += (input_section->output_section->vma
3051 + input_section->output_offset);
3052
3053 switch (r_type)
3054 {
3055 case R_TILEPRO_32_PCREL:
3056 case R_TILEPRO_16_PCREL:
3057 case R_TILEPRO_8_PCREL:
3058 /* If the symbol is not dynamic, we should not keep
3059 a dynamic relocation. But an .rela.* slot has been
3060 allocated for it, output R_TILEPRO_NONE.
3061 FIXME: Add code tracking needed dynamic relocs as
3062 e.g. i386 has. */
3063 if (h->dynindx == -1)
3064 skip = TRUE, relocate = TRUE;
3065 break;
3066 }
3067
3068 if (skip)
3069 memset (&outrel, 0, sizeof outrel);
3070 /* h->dynindx may be -1 if the symbol was marked to
3071 become local. */
3072 else if (h != NULL &&
3073 h->dynindx != -1
3074 && (! is_plt
3075 || !bfd_link_pic (info)
3076 || !SYMBOLIC_BIND (info, h)
3077 || !h->def_regular))
3078 {
3079 BFD_ASSERT (h->dynindx != -1);
3080 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3081 outrel.r_addend = rel->r_addend;
3082 }
3083 else
3084 {
3085 if (r_type == R_TILEPRO_32)
3086 {
3087 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3088 outrel.r_addend = relocation + rel->r_addend;
3089 }
3090 else
3091 {
3092 long indx;
3093
3094 outrel.r_addend = relocation + rel->r_addend;
3095
3096 if (is_plt)
3097 sec = htab->elf.splt;
3098
3099 if (bfd_is_abs_section (sec))
3100 indx = 0;
3101 else if (sec == NULL || sec->owner == NULL)
3102 {
3103 bfd_set_error (bfd_error_bad_value);
3104 return FALSE;
3105 }
3106 else
3107 {
3108 asection *osec;
3109
3110 /* We are turning this relocation into one
3111 against a section symbol. It would be
3112 proper to subtract the symbol's value,
3113 osec->vma, from the emitted reloc addend,
3114 but ld.so expects buggy relocs. */
3115 osec = sec->output_section;
3116 indx = elf_section_data (osec)->dynindx;
3117
3118 if (indx == 0)
3119 {
3120 osec = htab->elf.text_index_section;
3121 indx = elf_section_data (osec)->dynindx;
3122 }
3123
3124 /* FIXME: we really should be able to link non-pic
3125 shared libraries. */
3126 if (indx == 0)
3127 {
3128 BFD_FAIL ();
3129 _bfd_error_handler
3130 (_("%pB: probably compiled without -fPIC?"),
3131 input_bfd);
3132 bfd_set_error (bfd_error_bad_value);
3133 return FALSE;
3134 }
3135 }
3136
3137 outrel.r_info = ELF32_R_INFO (indx, r_type);
3138 }
3139 }
3140
3141 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3142
3143 /* This reloc will be computed at runtime, so there's no
3144 need to do anything now. */
3145 if (! relocate)
3146 continue;
3147 }
3148 break;
3149
3150 case R_TILEPRO_IMM16_X0_TLS_LE:
3151 case R_TILEPRO_IMM16_X1_TLS_LE:
3152 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3153 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3154 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3155 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3156 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3157 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3158 if (!bfd_link_executable (info))
3159 {
3160 Elf_Internal_Rela outrel;
3161 bfd_boolean skip;
3162
3163 BFD_ASSERT (sreloc != NULL);
3164 skip = FALSE;
3165 outrel.r_offset =
3166 _bfd_elf_section_offset (output_bfd, info, input_section,
3167 rel->r_offset);
3168 if (outrel.r_offset == (bfd_vma) -1)
3169 skip = TRUE;
3170 else if (outrel.r_offset == (bfd_vma) -2)
3171 skip = TRUE;
3172 outrel.r_offset += (input_section->output_section->vma
3173 + input_section->output_offset);
3174 if (skip)
3175 memset (&outrel, 0, sizeof outrel);
3176 else
3177 {
3178 outrel.r_info = ELF32_R_INFO (0, r_type);
3179 outrel.r_addend = relocation - dtpoff_base (info)
3180 + rel->r_addend;
3181 }
3182
3183 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3184 continue;
3185 }
3186 relocation = tpoff (info, relocation);
3187 break;
3188
3189 case R_TILEPRO_IMM16_X0_TLS_GD:
3190 case R_TILEPRO_IMM16_X1_TLS_GD:
3191 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3192 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3193 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3194 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3195 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3196 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3197 case R_TILEPRO_IMM16_X0_TLS_IE:
3198 case R_TILEPRO_IMM16_X1_TLS_IE:
3199 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3200 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3201 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3202 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3203 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3204 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3205 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3206 tls_type = GOT_UNKNOWN;
3207 if (h == NULL && local_got_offsets)
3208 tls_type
3209 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3210 else if (h != NULL)
3211 {
3212 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3213 if (bfd_link_executable (info)
3214 && h->dynindx == -1
3215 && tls_type == GOT_TLS_IE)
3216 r_type = tilepro_tls_translate_to_le (r_type);
3217 }
3218 if (tls_type == GOT_TLS_IE)
3219 r_type = tilepro_tls_translate_to_ie (r_type);
3220
3221 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3222 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3223 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3224 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3225 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3226 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3227 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3228 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3229 {
3230 relocation = tpoff (info, relocation);
3231 break;
3232 }
3233
3234 if (h != NULL)
3235 {
3236 off = h->got.offset;
3237 h->got.offset |= 1;
3238 }
3239 else
3240 {
3241 BFD_ASSERT (local_got_offsets != NULL);
3242 off = local_got_offsets[r_symndx];
3243 local_got_offsets[r_symndx] |= 1;
3244 }
3245
3246 if (htab->elf.sgot == NULL)
3247 abort ();
3248
3249 if ((off & 1) != 0)
3250 off &= ~1;
3251 else
3252 {
3253 Elf_Internal_Rela outrel;
3254 int indx = 0;
3255 bfd_boolean need_relocs = FALSE;
3256
3257 if (htab->elf.srelgot == NULL)
3258 abort ();
3259
3260 if (h != NULL)
3261 {
3262 bfd_boolean dyn;
3263 dyn = htab->elf.dynamic_sections_created;
3264
3265 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3266 bfd_link_pic (info),
3267 h)
3268 && (!bfd_link_pic (info)
3269 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3270 {
3271 indx = h->dynindx;
3272 }
3273 }
3274
3275 /* The GOT entries have not been initialized yet. Do it
3276 now, and emit any relocations. */
3277 if ((bfd_link_pic (info) || indx != 0)
3278 && (h == NULL
3279 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3280 || h->root.type != bfd_link_hash_undefweak))
3281 need_relocs = TRUE;
3282
3283 switch (r_type)
3284 {
3285 case R_TILEPRO_IMM16_X0_TLS_IE:
3286 case R_TILEPRO_IMM16_X1_TLS_IE:
3287 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3288 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3289 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3290 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3291 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3292 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3293 if (need_relocs) {
3294 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3295 outrel.r_offset = (htab->elf.sgot->output_section->vma
3296 + htab->elf.sgot->output_offset + off);
3297 outrel.r_addend = 0;
3298 if (indx == 0)
3299 outrel.r_addend = relocation - dtpoff_base (info);
3300 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3301 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3302 &outrel);
3303 } else {
3304 bfd_put_32 (output_bfd, tpoff (info, relocation),
3305 htab->elf.sgot->contents + off);
3306 }
3307 break;
3308
3309 case R_TILEPRO_IMM16_X0_TLS_GD:
3310 case R_TILEPRO_IMM16_X1_TLS_GD:
3311 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3312 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3313 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3314 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3315 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3316 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3317 if (need_relocs) {
3318 outrel.r_offset = (htab->elf.sgot->output_section->vma
3319 + htab->elf.sgot->output_offset + off);
3320 outrel.r_addend = 0;
3321 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3322 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3323 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3324 &outrel);
3325 if (indx == 0)
3326 {
3327 BFD_ASSERT (! unresolved_reloc);
3328 bfd_put_32 (output_bfd,
3329 relocation - dtpoff_base (info),
3330 (htab->elf.sgot->contents + off +
3331 TILEPRO_BYTES_PER_WORD));
3332 }
3333 else
3334 {
3335 bfd_put_32 (output_bfd, 0,
3336 (htab->elf.sgot->contents + off +
3337 TILEPRO_BYTES_PER_WORD));
3338 outrel.r_info = ELF32_R_INFO (indx,
3339 R_TILEPRO_TLS_DTPOFF32);
3340 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3341 tilepro_elf_append_rela_32 (output_bfd,
3342 htab->elf.srelgot, &outrel);
3343 }
3344 }
3345
3346 else {
3347 /* If we are not emitting relocations for a
3348 general dynamic reference, then we must be in a
3349 static link or an executable link with the
3350 symbol binding locally. Mark it as belonging
3351 to module 1, the executable. */
3352 bfd_put_32 (output_bfd, 1,
3353 htab->elf.sgot->contents + off );
3354 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3355 htab->elf.sgot->contents + off +
3356 TILEPRO_BYTES_PER_WORD);
3357 }
3358 break;
3359 }
3360 }
3361
3362 if (off >= (bfd_vma) -2)
3363 abort ();
3364
3365 relocation = off - got_base;
3366 unresolved_reloc = FALSE;
3367 howto = tilepro_elf_howto_table + r_type;
3368 break;
3369
3370 default:
3371 break;
3372 }
3373
3374 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3375 because such sections are not SEC_ALLOC and thus ld.so will
3376 not process them. */
3377 if (unresolved_reloc
3378 && !((input_section->flags & SEC_DEBUGGING) != 0
3379 && h->def_dynamic)
3380 && _bfd_elf_section_offset (output_bfd, info, input_section,
3381 rel->r_offset) != (bfd_vma) -1)
3382 _bfd_error_handler
3383 /* xgettext:c-format */
3384 (_("%pB(%pA+%#" PRIx64 "): "
3385 "unresolvable %s relocation against symbol `%s'"),
3386 input_bfd,
3387 input_section,
3388 (uint64_t) rel->r_offset,
3389 howto->name,
3390 h->root.root.string);
3391
3392 r = bfd_reloc_continue;
3393
3394 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3395 * we will increment bit 16. The howto->rightshift takes care
3396 * of the rest for us. */
3397 switch (r_type)
3398 {
3399 case R_TILEPRO_HA16:
3400 case R_TILEPRO_IMM16_X0_HA:
3401 case R_TILEPRO_IMM16_X1_HA:
3402 case R_TILEPRO_IMM16_X0_HA_PCREL:
3403 case R_TILEPRO_IMM16_X1_HA_PCREL:
3404 case R_TILEPRO_IMM16_X0_GOT_HA:
3405 case R_TILEPRO_IMM16_X1_GOT_HA:
3406 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3407 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3408 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3409 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3410 relocation += 0x8000;
3411 break;
3412 }
3413
3414 /* Get the operand creation function, if any. */
3415 create_func = reloc_to_create_func[r_type];
3416 if (create_func == NULL)
3417 {
3418 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3419 contents, rel->r_offset,
3420 relocation, rel->r_addend);
3421 }
3422 else
3423 {
3424 if (howto->pc_relative)
3425 {
3426 relocation -=
3427 input_section->output_section->vma + input_section->output_offset;
3428 if (howto->pcrel_offset)
3429 relocation -= rel->r_offset;
3430 }
3431
3432 bfd_byte *data;
3433
3434 /* Add the relocation addend if any to the final target value */
3435 relocation += rel->r_addend;
3436
3437 /* Do basic range checking */
3438 r = bfd_check_overflow (howto->complain_on_overflow,
3439 howto->bitsize,
3440 howto->rightshift,
3441 32,
3442 relocation);
3443
3444 /*
3445 * Write the relocated value out into the raw section data.
3446 * Don't put a relocation out in the .rela section.
3447 */
3448 tilepro_bundle_bits mask = create_func(-1);
3449 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3450
3451 /* Only touch bytes while the mask is not 0, so we
3452 don't write to out of bounds memory if this is actually
3453 a 16-bit switch instruction. */
3454 for (data = contents + rel->r_offset; mask != 0; data++)
3455 {
3456 bfd_byte byte_mask = (bfd_byte)mask;
3457 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3458 mask >>= 8;
3459 value >>= 8;
3460 }
3461 }
3462
3463 if (r != bfd_reloc_ok)
3464 {
3465 const char *msg = NULL;
3466
3467 switch (r)
3468 {
3469 case bfd_reloc_overflow:
3470 (*info->callbacks->reloc_overflow)
3471 (info, (h ? &h->root : NULL), name, howto->name,
3472 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3473 break;
3474
3475 case bfd_reloc_undefined:
3476 (*info->callbacks->undefined_symbol)
3477 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3478 break;
3479
3480 case bfd_reloc_outofrange:
3481 msg = _("internal error: out of range error");
3482 break;
3483
3484 case bfd_reloc_notsupported:
3485 msg = _("internal error: unsupported relocation error");
3486 break;
3487
3488 case bfd_reloc_dangerous:
3489 msg = _("internal error: dangerous relocation");
3490 break;
3491
3492 default:
3493 msg = _("internal error: unknown error");
3494 break;
3495 }
3496
3497 if (msg)
3498 (*info->callbacks->warning) (info, msg, name, input_bfd,
3499 input_section, rel->r_offset);
3500 }
3501 }
3502
3503 return TRUE;
3504 }
3505
3506 /* Finish up dynamic symbol handling. We set the contents of various
3507 dynamic sections here. */
3508
3509 static bfd_boolean
3510 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3511 struct bfd_link_info *info,
3512 struct elf_link_hash_entry *h,
3513 Elf_Internal_Sym *sym)
3514 {
3515 struct tilepro_elf_link_hash_table *htab;
3516
3517 htab = tilepro_elf_hash_table (info);
3518 BFD_ASSERT (htab != NULL);
3519
3520 if (h->plt.offset != (bfd_vma) -1)
3521 {
3522 asection *splt;
3523 asection *srela;
3524 asection *sgotplt;
3525 Elf_Internal_Rela rela;
3526 bfd_byte *loc;
3527 bfd_vma r_offset;
3528
3529 int rela_index;
3530
3531 /* This symbol has an entry in the PLT. Set it up. */
3532
3533 BFD_ASSERT (h->dynindx != -1);
3534
3535 splt = htab->elf.splt;
3536 srela = htab->elf.srelplt;
3537 sgotplt = htab->elf.sgotplt;
3538
3539 if (splt == NULL || srela == NULL)
3540 abort ();
3541
3542 /* Fill in the entry in the procedure linkage table. */
3543 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3544 &r_offset);
3545
3546 /* Fill in the entry in the global offset table, which initially points
3547 to the beginning of the plt. */
3548 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3549 sgotplt->contents + r_offset);
3550
3551 /* Fill in the entry in the .rela.plt section. */
3552 rela.r_offset = (sgotplt->output_section->vma
3553 + sgotplt->output_offset
3554 + r_offset);
3555 rela.r_addend = 0;
3556 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3557
3558 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3559 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3560
3561 if (!h->def_regular)
3562 {
3563 /* Mark the symbol as undefined, rather than as defined in
3564 the .plt section. Leave the value alone. */
3565 sym->st_shndx = SHN_UNDEF;
3566 /* If the symbol is weak, we do need to clear the value.
3567 Otherwise, the PLT entry would provide a definition for
3568 the symbol even if the symbol wasn't defined anywhere,
3569 and so the symbol would never be NULL. */
3570 if (!h->ref_regular_nonweak)
3571 sym->st_value = 0;
3572 }
3573 }
3574
3575 if (h->got.offset != (bfd_vma) -1
3576 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3577 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3578 {
3579 asection *sgot;
3580 asection *srela;
3581 Elf_Internal_Rela rela;
3582
3583 /* This symbol has an entry in the GOT. Set it up. */
3584
3585 sgot = htab->elf.sgot;
3586 srela = htab->elf.srelgot;
3587 BFD_ASSERT (sgot != NULL && srela != NULL);
3588
3589 rela.r_offset = (sgot->output_section->vma
3590 + sgot->output_offset
3591 + (h->got.offset &~ (bfd_vma) 1));
3592
3593 /* If this is a -Bsymbolic link, and the symbol is defined
3594 locally, we just want to emit a RELATIVE reloc. Likewise if
3595 the symbol was forced to be local because of a version file.
3596 The entry in the global offset table will already have been
3597 initialized in the relocate_section function. */
3598 if (bfd_link_pic (info)
3599 && (info->symbolic || h->dynindx == -1)
3600 && h->def_regular)
3601 {
3602 asection *sec = h->root.u.def.section;
3603 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3604 rela.r_addend = (h->root.u.def.value
3605 + sec->output_section->vma
3606 + sec->output_offset);
3607 }
3608 else
3609 {
3610 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3611 rela.r_addend = 0;
3612 }
3613
3614 bfd_put_32 (output_bfd, 0,
3615 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3616 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3617 }
3618
3619 if (h->needs_copy)
3620 {
3621 asection *s;
3622 Elf_Internal_Rela rela;
3623
3624 /* This symbols needs a copy reloc. Set it up. */
3625 BFD_ASSERT (h->dynindx != -1);
3626
3627 rela.r_offset = (h->root.u.def.value
3628 + h->root.u.def.section->output_section->vma
3629 + h->root.u.def.section->output_offset);
3630 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3631 rela.r_addend = 0;
3632 if (h->root.u.def.section == htab->elf.sdynrelro)
3633 s = htab->elf.sreldynrelro;
3634 else
3635 s = htab->elf.srelbss;
3636 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3637 }
3638
3639 /* Mark some specially defined symbols as absolute. */
3640 if (h == htab->elf.hdynamic
3641 || (h == htab->elf.hgot || h == htab->elf.hplt))
3642 sym->st_shndx = SHN_ABS;
3643
3644 return TRUE;
3645 }
3646
3647 /* Finish up the dynamic sections. */
3648
3649 static bfd_boolean
3650 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3651 bfd *dynobj, asection *sdyn,
3652 asection *splt ATTRIBUTE_UNUSED)
3653 {
3654 Elf32_External_Dyn *dyncon, *dynconend;
3655 struct tilepro_elf_link_hash_table *htab;
3656
3657 htab = tilepro_elf_hash_table (info);
3658 BFD_ASSERT (htab != NULL);
3659 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3660 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3661 for (; dyncon < dynconend; dyncon++)
3662 {
3663 Elf_Internal_Dyn dyn;
3664 asection *s;
3665
3666 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3667
3668 switch (dyn.d_tag)
3669 {
3670 case DT_PLTGOT:
3671 s = htab->elf.sgotplt;
3672 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3673 break;
3674 case DT_JMPREL:
3675 s = htab->elf.srelplt;
3676 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3677 break;
3678 case DT_PLTRELSZ:
3679 s = htab->elf.srelplt;
3680 dyn.d_un.d_val = s->size;
3681 break;
3682 default:
3683 continue;
3684 }
3685
3686 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3687 }
3688 return TRUE;
3689 }
3690
3691 static bfd_boolean
3692 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3693 struct bfd_link_info *info)
3694 {
3695 bfd *dynobj;
3696 asection *sdyn;
3697 struct tilepro_elf_link_hash_table *htab;
3698
3699 htab = tilepro_elf_hash_table (info);
3700 BFD_ASSERT (htab != NULL);
3701 dynobj = htab->elf.dynobj;
3702
3703 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3704
3705 if (elf_hash_table (info)->dynamic_sections_created)
3706 {
3707 asection *splt;
3708 bfd_boolean ret;
3709
3710 splt = htab->elf.splt;
3711 BFD_ASSERT (splt != NULL && sdyn != NULL);
3712
3713 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3714
3715 if (!ret)
3716 return ret;
3717
3718 /* Fill in the first entry in the procedure linkage table. */
3719 if (splt->size > 0)
3720 {
3721 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3722 memset (splt->contents + PLT_HEADER_SIZE, 0,
3723 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3724 }
3725
3726 if (elf_section_data (splt->output_section) != NULL)
3727 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3728 = PLT_ENTRY_SIZE;
3729 }
3730
3731 if (htab->elf.sgotplt)
3732 {
3733 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3734 {
3735 _bfd_error_handler
3736 (_("discarded output section: `%pA'"), htab->elf.sgotplt);
3737 return FALSE;
3738 }
3739
3740 if (htab->elf.sgotplt->size > 0)
3741 {
3742 /* Write the first two entries in .got.plt, needed for the dynamic
3743 linker. */
3744 bfd_put_32 (output_bfd, (bfd_vma) -1,
3745 htab->elf.sgotplt->contents);
3746 bfd_put_32 (output_bfd, (bfd_vma) 0,
3747 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3748 }
3749
3750 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3751 = GOT_ENTRY_SIZE;
3752 }
3753
3754 if (htab->elf.sgot)
3755 {
3756 if (htab->elf.sgot->size > 0)
3757 {
3758 /* Set the first entry in the global offset table to the address of
3759 the dynamic section. */
3760 bfd_vma val = (sdyn ?
3761 sdyn->output_section->vma + sdyn->output_offset :
3762 0);
3763 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3764 }
3765
3766 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3767 = GOT_ENTRY_SIZE;
3768 }
3769
3770 return TRUE;
3771 }
3772
3773 \f
3774
3775 /* Return address for Ith PLT stub in section PLT, for relocation REL
3776 or (bfd_vma) -1 if it should not be included. */
3777
3778 static bfd_vma
3779 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3780 const arelent *rel ATTRIBUTE_UNUSED)
3781 {
3782 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3783 }
3784
3785 static enum elf_reloc_type_class
3786 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3787 const asection *rel_sec ATTRIBUTE_UNUSED,
3788 const Elf_Internal_Rela *rela)
3789 {
3790 switch ((int) ELF32_R_TYPE (rela->r_info))
3791 {
3792 case R_TILEPRO_RELATIVE:
3793 return reloc_class_relative;
3794 case R_TILEPRO_JMP_SLOT:
3795 return reloc_class_plt;
3796 case R_TILEPRO_COPY:
3797 return reloc_class_copy;
3798 default:
3799 return reloc_class_normal;
3800 }
3801 }
3802
3803 static int
3804 tilepro_additional_program_headers (bfd *abfd,
3805 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3806 {
3807 /* Each .intrpt section specified by the user adds another PT_LOAD
3808 header since the sections are discontiguous. */
3809 static const char intrpt_sections[4][9] =
3810 {
3811 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3812 };
3813 int count = 0;
3814 int i;
3815
3816 for (i = 0; i < 4; i++)
3817 {
3818 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3819 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3820 ++count;
3821 }
3822
3823 /* Add four "padding" headers in to leave room in case a custom linker
3824 script does something fancy. Otherwise ld complains that it ran
3825 out of program headers and refuses to link. */
3826 count += 4;
3827
3828 return count;
3829 }
3830
3831 #define ELF_ARCH bfd_arch_tilepro
3832 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3833 #define ELF_MACHINE_CODE EM_TILEPRO
3834 #define ELF_MAXPAGESIZE 0x10000
3835 #define ELF_COMMONPAGESIZE 0x10000
3836
3837 #define TARGET_LITTLE_SYM tilepro_elf32_vec
3838 #define TARGET_LITTLE_NAME "elf32-tilepro"
3839
3840 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3841
3842 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3843 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3844 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3845
3846 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3847 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3848 #define elf_backend_check_relocs tilepro_elf_check_relocs
3849 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3850 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3851 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3852 #define elf_backend_relocate_section tilepro_elf_relocate_section
3853 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3854 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3855 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3856 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
3857 #define elf_info_to_howto_rel NULL
3858 #define elf_info_to_howto tilepro_info_to_howto_rela
3859 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
3860 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
3861 #define elf_backend_additional_program_headers tilepro_additional_program_headers
3862
3863 #define bfd_elf32_mkobject tilepro_elf_mkobject
3864
3865 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3866
3867 #define elf_backend_can_gc_sections 1
3868 #define elf_backend_can_refcount 1
3869 #define elf_backend_want_got_plt 1
3870 #define elf_backend_plt_readonly 1
3871 /* Align PLT mod 64 byte L2 line size. */
3872 #define elf_backend_plt_alignment 6
3873 #define elf_backend_want_plt_sym 1
3874 #define elf_backend_got_header_size GOT_ENTRY_SIZE
3875 #define elf_backend_want_dynrelro 1
3876 #define elf_backend_rela_normal 1
3877 #define elf_backend_default_execstack 0
3878
3879 #include "elf32-target.h"
GDB Binutils - Deliverables
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