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[deliverable/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2019 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilepro.h"
26 #include "opcode/tilepro.h"
27 #include "libiberty.h"
28 #include "elf32-tilepro.h"
29
30 #define TILEPRO_BYTES_PER_WORD 4
31
32 static reloc_howto_type tilepro_elf_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_TILEPRO_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* TILEPRO ELF linker hash entry. */
683
684 struct tilepro_elf_link_hash_entry
685 {
686 struct elf_link_hash_entry elf;
687
688 /* Track dynamic relocs copied for this symbol. */
689 struct elf_dyn_relocs *dyn_relocs;
690
691 #define GOT_UNKNOWN 0
692 #define GOT_NORMAL 1
693 #define GOT_TLS_GD 2
694 #define GOT_TLS_IE 4
695 unsigned char tls_type;
696 };
697
698 #define tilepro_elf_hash_entry(ent) \
699 ((struct tilepro_elf_link_hash_entry *)(ent))
700
701 struct _bfd_tilepro_elf_obj_tdata
702 {
703 struct elf_obj_tdata root;
704
705 /* tls_type for each local got entry. */
706 char *local_got_tls_type;
707 };
708
709 #define _bfd_tilepro_elf_tdata(abfd) \
710 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
711
712 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
713 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
714
715 #define is_tilepro_elf(bfd) \
716 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
717 && elf_tdata (bfd) != NULL \
718 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
719
720 /* Allocate TILEPro ELF private object data. */
721
722 static bfd_boolean
723 tilepro_elf_mkobject (bfd *abfd)
724 {
725 return bfd_elf_allocate_object (abfd,
726 sizeof (struct _bfd_tilepro_elf_obj_tdata),
727 TILEPRO_ELF_DATA);
728 }
729
730 #include "elf/common.h"
731 #include "elf/internal.h"
732
733 struct tilepro_elf_link_hash_table
734 {
735 struct elf_link_hash_table elf;
736
737 /* Small local sym to section mapping cache. */
738 struct sym_cache sym_cache;
739 };
740
741 /* Get the Tilepro ELF linker hash table from a link_info structure. */
742 #define tilepro_elf_hash_table(p) \
743 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
744 == TILEPRO_ELF_DATA \
745 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
746
747 static reloc_howto_type *
748 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
749 bfd_reloc_code_real_type code)
750 {
751 unsigned int i;
752
753 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
754 {
755 const reloc_map * entry;
756
757 entry = tilepro_reloc_map + i;
758
759 if (entry->bfd_reloc_val == code)
760 return entry->table + (entry->tilepro_reloc_val
761 - entry->table[0].type);
762 }
763
764 return NULL;
765 }
766
767 static reloc_howto_type *
768 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
769 const char *r_name)
770 {
771 unsigned int i;
772
773 for (i = 0;
774 i < (sizeof (tilepro_elf_howto_table)
775 / sizeof (tilepro_elf_howto_table[0]));
776 i++)
777 if (tilepro_elf_howto_table[i].name != NULL
778 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
779 return &tilepro_elf_howto_table[i];
780
781 return NULL;
782 }
783
784 /* Set the howto pointer for an TILEPro ELF reloc. */
785
786 static bfd_boolean
787 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
788 arelent * cache_ptr,
789 Elf_Internal_Rela * dst)
790 {
791 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
792
793 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
794 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
795 else if (r_type - R_TILEPRO_GNU_VTINHERIT
796 <= ((unsigned int) R_TILEPRO_GNU_VTENTRY
797 - (unsigned int) R_TILEPRO_GNU_VTINHERIT))
798 cache_ptr->howto
799 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
800 else
801 {
802 /* xgettext:c-format */
803 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
804 abfd, r_type);
805 bfd_set_error (bfd_error_bad_value);
806 return FALSE;
807 }
808 return TRUE;
809 }
810
811 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
812
813 static const tilepro_create_func reloc_to_create_func[] =
814 {
815 /* The first fourteen relocation types don't correspond to operands */
816 NULL,
817 NULL,
818 NULL,
819 NULL,
820 NULL,
821 NULL,
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827 NULL,
828 NULL,
829 NULL,
830
831 /* The remaining relocations are used for immediate operands */
832 create_BrOff_X1,
833 create_JOffLong_X1,
834 create_JOffLong_X1,
835 create_Imm8_X0,
836 create_Imm8_Y0,
837 create_Imm8_X1,
838 create_Imm8_Y1,
839 create_MT_Imm15_X1,
840 create_MF_Imm15_X1,
841 create_Imm16_X0,
842 create_Imm16_X1,
843 create_Imm16_X0,
844 create_Imm16_X1,
845 create_Imm16_X0,
846 create_Imm16_X1,
847 create_Imm16_X0,
848 create_Imm16_X1,
849 create_Imm16_X0,
850 create_Imm16_X1,
851 create_Imm16_X0,
852 create_Imm16_X1,
853 create_Imm16_X0,
854 create_Imm16_X1,
855 create_Imm16_X0,
856 create_Imm16_X1,
857 create_Imm16_X0,
858 create_Imm16_X1,
859 create_Imm16_X0,
860 create_Imm16_X1,
861 create_Imm16_X0,
862 create_Imm16_X1,
863 create_Imm16_X0,
864 create_Imm16_X1,
865 create_MMStart_X0,
866 create_MMEnd_X0,
867 create_MMStart_X1,
868 create_MMEnd_X1,
869 create_ShAmt_X0,
870 create_ShAmt_X1,
871 create_ShAmt_Y0,
872 create_ShAmt_Y1,
873
874 create_Dest_Imm8_X1,
875 NULL,
876 NULL,
877 NULL,
878 NULL,
879 NULL,
880 NULL,
881 NULL,
882 NULL,
883 NULL,
884 NULL,
885
886 create_Imm16_X0,
887 create_Imm16_X1,
888 create_Imm16_X0,
889 create_Imm16_X1,
890 create_Imm16_X0,
891 create_Imm16_X1,
892 create_Imm16_X0,
893 create_Imm16_X1,
894 create_Imm16_X0,
895 create_Imm16_X1,
896 create_Imm16_X0,
897 create_Imm16_X1,
898 create_Imm16_X0,
899 create_Imm16_X1,
900 create_Imm16_X0,
901 create_Imm16_X1,
902
903 NULL,
904 NULL,
905 NULL,
906
907 create_Imm16_X0,
908 create_Imm16_X1,
909 create_Imm16_X0,
910 create_Imm16_X1,
911 create_Imm16_X0,
912 create_Imm16_X1,
913 create_Imm16_X0,
914 create_Imm16_X1,
915 };
916
917 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
918
919 /* Support for core dump NOTE sections. */
920
921 static bfd_boolean
922 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
923 {
924 int offset;
925 size_t size;
926
927 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
928 return FALSE;
929
930 /* pr_cursig */
931 elf_tdata (abfd)->core->signal =
932 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
933
934 /* pr_pid */
935 elf_tdata (abfd)->core->pid =
936 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
937
938 /* pr_reg */
939 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
940 size = TILEPRO_GREGSET_T_SIZE;
941
942 /* Make a ".reg/999" section. */
943 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
944 size, note->descpos + offset);
945 }
946
947 static bfd_boolean
948 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
949 {
950 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
951 return FALSE;
952
953 elf_tdata (abfd)->core->program
954 = _bfd_elfcore_strndup (abfd,
955 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
956 16);
957 elf_tdata (abfd)->core->command
958 = _bfd_elfcore_strndup (abfd,
959 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
960 ELF_PR_PSARGS_SIZE);
961
962
963 /* Note that for some reason, a spurious space is tacked
964 onto the end of the args in some (at least one anyway)
965 implementations, so strip it off if it exists. */
966 {
967 char *command = elf_tdata (abfd)->core->command;
968 int n = strlen (command);
969
970 if (0 < n && command[n - 1] == ' ')
971 command[n - 1] = '\0';
972 }
973
974 return TRUE;
975 }
976
977
978 static void
979 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
980 {
981 Elf32_External_Rela *loc32;
982
983 loc32 = (Elf32_External_Rela *) s->contents;
984 loc32 += s->reloc_count++;
985 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
986 }
987
988 /* PLT/GOT stuff */
989
990 /* The procedure linkage table starts with the following header:
991
992 {
993 rli r29, r29, 16
994 lwadd r28, r27, 4
995 }
996 lw r27, r27
997 {
998 info 10 ## SP not offset, return PC in LR
999 jr r27
1000 }
1001
1002 Subsequent entries are the following, jumping to the header at the end:
1003
1004 lnk r28
1005 1:
1006 {
1007 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1008 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1009 }
1010 {
1011 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1012 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1013 }
1014 {
1015 auli r29, zero, MY_PLT_INDEX
1016 lw r28, r28
1017 }
1018 {
1019 info 10 ## SP not offset, return PC in LR
1020 jr r28
1021 }
1022
1023 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1024 16 bits as an unsigned offset; if we use the low bits we would get an
1025 unwanted sign extension. The PLT header then rotates the index to get the
1026 right value, before calling the resolution routine. This computation can
1027 fit in unused bundle slots so it's free.
1028
1029 This code sequence lets the code at at the start of the PLT determine
1030 which PLT entry was executed by examining 'r29'.
1031
1032 Note that MY_PLT_INDEX skips over the header entries, so the first
1033 actual jump table entry has index zero.
1034 */
1035
1036 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1037 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1038
1039 #define PLT_HEADER_SIZE \
1040 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1041 #define PLT_ENTRY_SIZE \
1042 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1043
1044 /* The size in bytes of an entry in the global offset table. */
1045
1046 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1047
1048 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1049
1050
1051 static const bfd_byte
1052 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1053 {
1054 0x5d, 0x07, 0x03, 0x70,
1055 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1056 0x00, 0x50, 0xba, 0x6d,
1057 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1058 0xff, 0xaf, 0x10, 0x50,
1059 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1060 };
1061
1062 static const bfd_byte
1063 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1064 {
1065 0x00, 0x50, 0x16, 0x70,
1066 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1067 0x1c, 0x07, 0x00, 0xa0,
1068 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1069 0xdd, 0x0f, 0x00, 0x30,
1070 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1071 0xff, 0xaf, 0x10, 0x50,
1072 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1073 0x00, 0x00, 0x00, 0x00,
1074 0x00, 0x00, 0x00, 0x00,
1075 };
1076
1077 static const bfd_byte
1078 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1079 {
1080 0x00, 0x50, 0x16, 0x70,
1081 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1082 0x1c, 0x07, 0x00, 0xb0,
1083 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1084 0x1c, 0x07, 0x00, 0xa0,
1085 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1086 0xdd, 0x0f, 0x00, 0x30,
1087 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1088 0xff, 0xaf, 0x10, 0x50,
1089 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1090 };
1091
1092 static bfd_vma
1093 tilepro_ha16(bfd_vma vma)
1094 {
1095 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1096 }
1097
1098 static int
1099 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1100 bfd_vma *r_offset)
1101 {
1102 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1103 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1104 tilepro_bundle_bits *pc;
1105
1106 /* Compute the distance from the got entry to the lnk. */
1107 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1108 + sgotplt->output_offset
1109 + got_offset
1110 - splt->output_section->vma
1111 - splt->output_offset
1112 - offset
1113 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1114
1115 /* Compute the distance to GOTPLT[0]. */
1116 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1117
1118 /* Check whether we can use the short plt entry with 16-bit offset. */
1119 bfd_boolean short_plt_entry =
1120 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1121
1122 /* Copy the plt entry template. */
1123 memcpy (splt->contents + offset,
1124 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1125 PLT_ENTRY_SIZE);
1126
1127 /* Write the immediate offsets. */
1128 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1129 pc++;
1130
1131 if (!short_plt_entry)
1132 {
1133 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1134 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1135 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1136 }
1137
1138 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1139 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1140 *pc++ |= create_Imm16_X0 (dist_got_entry)
1141 | create_Imm16_X1 (dist_got0);
1142
1143 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1144 *pc |= create_Imm16_X0 (plt_index);
1145
1146 /* Set the relocation offset. */
1147 *r_offset = got_offset;
1148
1149 return plt_index;
1150 }
1151
1152 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1153
1154
1155 /* Create an entry in an TILEPro ELF linker hash table. */
1156
1157 static struct bfd_hash_entry *
1158 link_hash_newfunc (struct bfd_hash_entry *entry,
1159 struct bfd_hash_table *table, const char *string)
1160 {
1161 /* Allocate the structure if it has not already been allocated by a
1162 subclass. */
1163 if (entry == NULL)
1164 {
1165 entry =
1166 bfd_hash_allocate (table,
1167 sizeof (struct tilepro_elf_link_hash_entry));
1168 if (entry == NULL)
1169 return entry;
1170 }
1171
1172 /* Call the allocation method of the superclass. */
1173 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1174 if (entry != NULL)
1175 {
1176 struct tilepro_elf_link_hash_entry *eh;
1177
1178 eh = (struct tilepro_elf_link_hash_entry *) entry;
1179 eh->dyn_relocs = NULL;
1180 eh->tls_type = GOT_UNKNOWN;
1181 }
1182
1183 return entry;
1184 }
1185
1186 /* Create a TILEPRO ELF linker hash table. */
1187
1188 static struct bfd_link_hash_table *
1189 tilepro_elf_link_hash_table_create (bfd *abfd)
1190 {
1191 struct tilepro_elf_link_hash_table *ret;
1192 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1193
1194 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1195 if (ret == NULL)
1196 return NULL;
1197
1198 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1199 sizeof (struct tilepro_elf_link_hash_entry),
1200 TILEPRO_ELF_DATA))
1201 {
1202 free (ret);
1203 return NULL;
1204 }
1205
1206 return &ret->elf.root;
1207 }
1208
1209 /* Create the .got section. */
1210
1211 static bfd_boolean
1212 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1213 {
1214 flagword flags;
1215 asection *s, *s_got;
1216 struct elf_link_hash_entry *h;
1217 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1218 struct elf_link_hash_table *htab = elf_hash_table (info);
1219
1220 /* This function may be called more than once. */
1221 if (htab->sgot != NULL)
1222 return TRUE;
1223
1224 flags = bed->dynamic_sec_flags;
1225
1226 s = bfd_make_section_with_flags (abfd,
1227 (bed->rela_plts_and_copies_p
1228 ? ".rela.got" : ".rel.got"),
1229 (bed->dynamic_sec_flags
1230 | SEC_READONLY));
1231 if (s == NULL
1232 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1233 return FALSE;
1234 htab->srelgot = s;
1235
1236 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1237 if (s == NULL
1238 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1239 return FALSE;
1240 htab->sgot = s;
1241
1242 /* The first bit of the global offset table is the header. */
1243 s->size += bed->got_header_size;
1244
1245 if (bed->want_got_plt)
1246 {
1247 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1248 if (s == NULL
1249 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1250 return FALSE;
1251 htab->sgotplt = s;
1252
1253 /* Reserve room for the header. */
1254 s->size += GOTPLT_HEADER_SIZE;
1255 }
1256
1257 if (bed->want_got_sym)
1258 {
1259 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1260 section. We don't do this in the linker script because we don't want
1261 to define the symbol if we are not creating a global offset
1262 table. */
1263 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1264 "_GLOBAL_OFFSET_TABLE_");
1265 elf_hash_table (info)->hgot = h;
1266 if (h == NULL)
1267 return FALSE;
1268 }
1269
1270 return TRUE;
1271 }
1272
1273 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1274 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1275 hash table. */
1276
1277 static bfd_boolean
1278 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1279 struct bfd_link_info *info)
1280 {
1281 if (!tilepro_elf_create_got_section (dynobj, info))
1282 return FALSE;
1283
1284 return _bfd_elf_create_dynamic_sections (dynobj, info);
1285 }
1286
1287 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1288
1289 static void
1290 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1291 struct elf_link_hash_entry *dir,
1292 struct elf_link_hash_entry *ind)
1293 {
1294 struct tilepro_elf_link_hash_entry *edir, *eind;
1295
1296 edir = (struct tilepro_elf_link_hash_entry *) dir;
1297 eind = (struct tilepro_elf_link_hash_entry *) ind;
1298
1299 if (eind->dyn_relocs != NULL)
1300 {
1301 if (edir->dyn_relocs != NULL)
1302 {
1303 struct elf_dyn_relocs **pp;
1304 struct elf_dyn_relocs *p;
1305
1306 /* Add reloc counts against the indirect sym to the direct sym
1307 list. Merge any entries against the same section. */
1308 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1309 {
1310 struct elf_dyn_relocs *q;
1311
1312 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1313 if (q->sec == p->sec)
1314 {
1315 q->pc_count += p->pc_count;
1316 q->count += p->count;
1317 *pp = p->next;
1318 break;
1319 }
1320 if (q == NULL)
1321 pp = &p->next;
1322 }
1323 *pp = edir->dyn_relocs;
1324 }
1325
1326 edir->dyn_relocs = eind->dyn_relocs;
1327 eind->dyn_relocs = NULL;
1328 }
1329
1330 if (ind->root.type == bfd_link_hash_indirect
1331 && dir->got.refcount <= 0)
1332 {
1333 edir->tls_type = eind->tls_type;
1334 eind->tls_type = GOT_UNKNOWN;
1335 }
1336 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1337 }
1338
1339 static int
1340 tilepro_tls_translate_to_le (int r_type)
1341 {
1342 switch (r_type)
1343 {
1344 case R_TILEPRO_IMM16_X0_TLS_GD:
1345 case R_TILEPRO_IMM16_X0_TLS_IE:
1346 return R_TILEPRO_IMM16_X0_TLS_LE;
1347
1348 case R_TILEPRO_IMM16_X1_TLS_GD:
1349 case R_TILEPRO_IMM16_X1_TLS_IE:
1350 return R_TILEPRO_IMM16_X1_TLS_LE;
1351
1352 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1353 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1354 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1355
1356 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1357 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1358 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1359
1360 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1361 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1362 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1363
1364 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1365 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1366 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1367
1368 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1369 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1370 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1371
1372 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1373 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1374 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1375 }
1376 return r_type;
1377 }
1378
1379 static int
1380 tilepro_tls_translate_to_ie (int r_type)
1381 {
1382 switch (r_type)
1383 {
1384 case R_TILEPRO_IMM16_X0_TLS_GD:
1385 case R_TILEPRO_IMM16_X0_TLS_IE:
1386 return R_TILEPRO_IMM16_X0_TLS_IE;
1387
1388 case R_TILEPRO_IMM16_X1_TLS_GD:
1389 case R_TILEPRO_IMM16_X1_TLS_IE:
1390 return R_TILEPRO_IMM16_X1_TLS_IE;
1391
1392 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1393 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1394 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1395
1396 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1397 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1398 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1399
1400 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1401 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1402 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1403
1404 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1405 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1406 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1407
1408 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1409 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1410 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1411
1412 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1413 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1414 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1415 }
1416 return r_type;
1417 }
1418
1419 static int
1420 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1421 int is_local)
1422 {
1423 if (!bfd_link_executable (info))
1424 return r_type;
1425
1426 if (is_local)
1427 return tilepro_tls_translate_to_le (r_type);
1428 else
1429 return tilepro_tls_translate_to_ie (r_type);
1430 }
1431
1432 /* Look through the relocs for a section during the first phase, and
1433 allocate space in the global offset table or procedure linkage
1434 table. */
1435
1436 static bfd_boolean
1437 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1438 asection *sec, const Elf_Internal_Rela *relocs)
1439 {
1440 struct tilepro_elf_link_hash_table *htab;
1441 Elf_Internal_Shdr *symtab_hdr;
1442 struct elf_link_hash_entry **sym_hashes;
1443 const Elf_Internal_Rela *rel;
1444 const Elf_Internal_Rela *rel_end;
1445 asection *sreloc;
1446 int num_relocs;
1447
1448 if (bfd_link_relocatable (info))
1449 return TRUE;
1450
1451 htab = tilepro_elf_hash_table (info);
1452 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1453 sym_hashes = elf_sym_hashes (abfd);
1454
1455 sreloc = NULL;
1456
1457 num_relocs = sec->reloc_count;
1458
1459 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1460
1461 if (htab->elf.dynobj == NULL)
1462 htab->elf.dynobj = abfd;
1463
1464 rel_end = relocs + num_relocs;
1465 for (rel = relocs; rel < rel_end; rel++)
1466 {
1467 unsigned int r_type;
1468 unsigned int r_symndx;
1469 struct elf_link_hash_entry *h;
1470 int tls_type;
1471
1472 r_symndx = ELF32_R_SYM (rel->r_info);
1473 r_type = ELF32_R_TYPE (rel->r_info);
1474
1475 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1476 {
1477 /* xgettext:c-format */
1478 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1479 abfd, r_symndx);
1480 return FALSE;
1481 }
1482
1483 if (r_symndx < symtab_hdr->sh_info)
1484 h = NULL;
1485 else
1486 {
1487 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1488 while (h->root.type == bfd_link_hash_indirect
1489 || h->root.type == bfd_link_hash_warning)
1490 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1491 }
1492
1493 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1494 switch (r_type)
1495 {
1496 case R_TILEPRO_IMM16_X0_TLS_LE:
1497 case R_TILEPRO_IMM16_X1_TLS_LE:
1498 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1499 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1500 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1501 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1502 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1503 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1504 if (!bfd_link_executable (info))
1505 goto r_tilepro_plt32;
1506 break;
1507
1508 case R_TILEPRO_IMM16_X0_TLS_GD:
1509 case R_TILEPRO_IMM16_X1_TLS_GD:
1510 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1511 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1512 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1513 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1514 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1515 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1516 BFD_ASSERT (bfd_link_pic (info));
1517 tls_type = GOT_TLS_GD;
1518 goto have_got_reference;
1519
1520 case R_TILEPRO_IMM16_X0_TLS_IE:
1521 case R_TILEPRO_IMM16_X1_TLS_IE:
1522 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1523 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1524 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1525 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1526 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1527 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1528 tls_type = GOT_TLS_IE;
1529 if (!bfd_link_executable (info))
1530 info->flags |= DF_STATIC_TLS;
1531 goto have_got_reference;
1532
1533 case R_TILEPRO_IMM16_X0_GOT:
1534 case R_TILEPRO_IMM16_X1_GOT:
1535 case R_TILEPRO_IMM16_X0_GOT_LO:
1536 case R_TILEPRO_IMM16_X1_GOT_LO:
1537 case R_TILEPRO_IMM16_X0_GOT_HI:
1538 case R_TILEPRO_IMM16_X1_GOT_HI:
1539 case R_TILEPRO_IMM16_X0_GOT_HA:
1540 case R_TILEPRO_IMM16_X1_GOT_HA:
1541 tls_type = GOT_NORMAL;
1542 /* Fall Through */
1543
1544 have_got_reference:
1545 /* This symbol requires a global offset table entry. */
1546 {
1547 int old_tls_type;
1548
1549 if (h != NULL)
1550 {
1551 h->got.refcount += 1;
1552 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1553 }
1554 else
1555 {
1556 bfd_signed_vma *local_got_refcounts;
1557
1558 /* This is a global offset table entry for a local symbol. */
1559 local_got_refcounts = elf_local_got_refcounts (abfd);
1560 if (local_got_refcounts == NULL)
1561 {
1562 bfd_size_type size;
1563
1564 size = symtab_hdr->sh_info;
1565 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1566 local_got_refcounts = ((bfd_signed_vma *)
1567 bfd_zalloc (abfd, size));
1568 if (local_got_refcounts == NULL)
1569 return FALSE;
1570 elf_local_got_refcounts (abfd) = local_got_refcounts;
1571 _bfd_tilepro_elf_local_got_tls_type (abfd)
1572 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1573 }
1574 local_got_refcounts[r_symndx] += 1;
1575 old_tls_type =
1576 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1577 }
1578
1579 /* If a TLS symbol is accessed using IE at least once,
1580 there is no point to use dynamic model for it. */
1581 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1582 && (old_tls_type != GOT_TLS_GD
1583 || tls_type != GOT_TLS_IE))
1584 {
1585 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1586 tls_type = old_tls_type;
1587 else
1588 {
1589 _bfd_error_handler
1590 /* xgettext:c-format */
1591 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1592 abfd, h ? h->root.root.string : "<local>");
1593 return FALSE;
1594 }
1595 }
1596
1597 if (old_tls_type != tls_type)
1598 {
1599 if (h != NULL)
1600 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1601 else
1602 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1603 tls_type;
1604 }
1605 }
1606
1607 if (htab->elf.sgot == NULL)
1608 {
1609 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1610 return FALSE;
1611 }
1612 break;
1613
1614 case R_TILEPRO_TLS_GD_CALL:
1615 if (!bfd_link_executable (info))
1616 {
1617 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1618 against __tls_get_addr. */
1619 struct bfd_link_hash_entry *bh = NULL;
1620 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1621 "__tls_get_addr", 0,
1622 bfd_und_section_ptr, 0,
1623 NULL, FALSE, FALSE,
1624 &bh))
1625 return FALSE;
1626 h = (struct elf_link_hash_entry *) bh;
1627 }
1628 else
1629 break;
1630 /* Fall through */
1631
1632 case R_TILEPRO_JOFFLONG_X1_PLT:
1633 /* This symbol requires a procedure linkage table entry. We
1634 actually build the entry in adjust_dynamic_symbol,
1635 because this might be a case of linking PIC code without
1636 linking in any dynamic objects, in which case we don't
1637 need to generate a procedure linkage table after all. */
1638
1639 if (h != NULL)
1640 {
1641 h->needs_plt = 1;
1642 h->plt.refcount += 1;
1643 }
1644 break;
1645
1646 case R_TILEPRO_32_PCREL:
1647 case R_TILEPRO_16_PCREL:
1648 case R_TILEPRO_8_PCREL:
1649 case R_TILEPRO_IMM16_X0_PCREL:
1650 case R_TILEPRO_IMM16_X1_PCREL:
1651 case R_TILEPRO_IMM16_X0_LO_PCREL:
1652 case R_TILEPRO_IMM16_X1_LO_PCREL:
1653 case R_TILEPRO_IMM16_X0_HI_PCREL:
1654 case R_TILEPRO_IMM16_X1_HI_PCREL:
1655 case R_TILEPRO_IMM16_X0_HA_PCREL:
1656 case R_TILEPRO_IMM16_X1_HA_PCREL:
1657 if (h != NULL)
1658 h->non_got_ref = 1;
1659
1660 if (h != NULL
1661 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1662 break;
1663 /* Fall through. */
1664
1665 case R_TILEPRO_32:
1666 case R_TILEPRO_16:
1667 case R_TILEPRO_8:
1668 case R_TILEPRO_LO16:
1669 case R_TILEPRO_HI16:
1670 case R_TILEPRO_HA16:
1671 case R_TILEPRO_COPY:
1672 case R_TILEPRO_GLOB_DAT:
1673 case R_TILEPRO_JMP_SLOT:
1674 case R_TILEPRO_RELATIVE:
1675 case R_TILEPRO_BROFF_X1:
1676 case R_TILEPRO_JOFFLONG_X1:
1677 case R_TILEPRO_IMM8_X0:
1678 case R_TILEPRO_IMM8_Y0:
1679 case R_TILEPRO_IMM8_X1:
1680 case R_TILEPRO_IMM8_Y1:
1681 case R_TILEPRO_DEST_IMM8_X1:
1682 case R_TILEPRO_MT_IMM15_X1:
1683 case R_TILEPRO_MF_IMM15_X1:
1684 case R_TILEPRO_IMM16_X0:
1685 case R_TILEPRO_IMM16_X1:
1686 case R_TILEPRO_IMM16_X0_LO:
1687 case R_TILEPRO_IMM16_X1_LO:
1688 case R_TILEPRO_IMM16_X0_HI:
1689 case R_TILEPRO_IMM16_X1_HI:
1690 case R_TILEPRO_IMM16_X0_HA:
1691 case R_TILEPRO_IMM16_X1_HA:
1692 case R_TILEPRO_MMSTART_X0:
1693 case R_TILEPRO_MMEND_X0:
1694 case R_TILEPRO_MMSTART_X1:
1695 case R_TILEPRO_MMEND_X1:
1696 case R_TILEPRO_SHAMT_X0:
1697 case R_TILEPRO_SHAMT_X1:
1698 case R_TILEPRO_SHAMT_Y0:
1699 case R_TILEPRO_SHAMT_Y1:
1700 if (h != NULL)
1701 h->non_got_ref = 1;
1702
1703 r_tilepro_plt32:
1704 if (h != NULL && !bfd_link_pic (info))
1705 {
1706 /* We may need a .plt entry if the function this reloc
1707 refers to is in a shared lib. */
1708 h->plt.refcount += 1;
1709 }
1710
1711 /* If we are creating a shared library, and this is a reloc
1712 against a global symbol, or a non PC relative reloc
1713 against a local symbol, then we need to copy the reloc
1714 into the shared library. However, if we are linking with
1715 -Bsymbolic, we do not need to copy a reloc against a
1716 global symbol which is defined in an object we are
1717 including in the link (i.e., DEF_REGULAR is set). At
1718 this point we have not seen all the input files, so it is
1719 possible that DEF_REGULAR is not set now but will be set
1720 later (it is never cleared). In case of a weak definition,
1721 DEF_REGULAR may be cleared later by a strong definition in
1722 a shared library. We account for that possibility below by
1723 storing information in the relocs_copied field of the hash
1724 table entry. A similar situation occurs when creating
1725 shared libraries and symbol visibility changes render the
1726 symbol local.
1727
1728 If on the other hand, we are creating an executable, we
1729 may need to keep relocations for symbols satisfied by a
1730 dynamic library if we manage to avoid copy relocs for the
1731 symbol. */
1732 if ((bfd_link_pic (info)
1733 && (sec->flags & SEC_ALLOC) != 0
1734 && (! tilepro_elf_howto_table[r_type].pc_relative
1735 || (h != NULL
1736 && (! info->symbolic
1737 || h->root.type == bfd_link_hash_defweak
1738 || !h->def_regular))))
1739 || (!bfd_link_pic (info)
1740 && (sec->flags & SEC_ALLOC) != 0
1741 && h != NULL
1742 && (h->root.type == bfd_link_hash_defweak
1743 || !h->def_regular)))
1744 {
1745 struct elf_dyn_relocs *p;
1746 struct elf_dyn_relocs **head;
1747
1748 /* When creating a shared object, we must copy these
1749 relocs into the output file. We create a reloc
1750 section in dynobj and make room for the reloc. */
1751 if (sreloc == NULL)
1752 {
1753 sreloc = _bfd_elf_make_dynamic_reloc_section
1754 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1755
1756 if (sreloc == NULL)
1757 return FALSE;
1758 }
1759
1760 /* If this is a global symbol, we count the number of
1761 relocations we need for this symbol. */
1762 if (h != NULL)
1763 head =
1764 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1765 else
1766 {
1767 /* Track dynamic relocs needed for local syms too.
1768 We really need local syms available to do this
1769 easily. Oh well. */
1770
1771 asection *s;
1772 void *vpp;
1773 Elf_Internal_Sym *isym;
1774
1775 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1776 abfd, r_symndx);
1777 if (isym == NULL)
1778 return FALSE;
1779
1780 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1781 if (s == NULL)
1782 s = sec;
1783
1784 vpp = &elf_section_data (s)->local_dynrel;
1785 head = (struct elf_dyn_relocs **) vpp;
1786 }
1787
1788 p = *head;
1789 if (p == NULL || p->sec != sec)
1790 {
1791 bfd_size_type amt = sizeof *p;
1792 p = ((struct elf_dyn_relocs *)
1793 bfd_alloc (htab->elf.dynobj, amt));
1794 if (p == NULL)
1795 return FALSE;
1796 p->next = *head;
1797 *head = p;
1798 p->sec = sec;
1799 p->count = 0;
1800 p->pc_count = 0;
1801 }
1802
1803 p->count += 1;
1804 if (tilepro_elf_howto_table[r_type].pc_relative)
1805 p->pc_count += 1;
1806 }
1807
1808 break;
1809
1810 case R_TILEPRO_GNU_VTINHERIT:
1811 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1812 return FALSE;
1813 break;
1814
1815 case R_TILEPRO_GNU_VTENTRY:
1816 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1817 return FALSE;
1818 break;
1819
1820 default:
1821 break;
1822 }
1823 }
1824
1825 return TRUE;
1826 }
1827
1828 \f
1829 static asection *
1830 tilepro_elf_gc_mark_hook (asection *sec,
1831 struct bfd_link_info *info,
1832 Elf_Internal_Rela *rel,
1833 struct elf_link_hash_entry *h,
1834 Elf_Internal_Sym *sym)
1835 {
1836 if (h != NULL)
1837 {
1838 switch (ELF32_R_TYPE (rel->r_info))
1839 {
1840 case R_TILEPRO_GNU_VTINHERIT:
1841 case R_TILEPRO_GNU_VTENTRY:
1842 return NULL;
1843 }
1844 }
1845
1846 /* FIXME: The test here, in check_relocs and in relocate_section
1847 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1848 if (bfd_link_pic (info))
1849 {
1850 struct bfd_link_hash_entry *bh;
1851
1852 switch (ELF32_R_TYPE (rel->r_info))
1853 {
1854 case R_TILEPRO_TLS_GD_CALL:
1855 /* This reloc implicitly references __tls_get_addr. We know
1856 another reloc will reference the same symbol as the one
1857 on this reloc, so the real symbol and section will be
1858 gc marked when processing the other reloc. That lets
1859 us handle __tls_get_addr here. */
1860 bh = NULL;
1861 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
1862 "__tls_get_addr", 0,
1863 bfd_und_section_ptr,
1864 0, NULL, FALSE,
1865 FALSE, &bh))
1866 return NULL;
1867 h = (struct elf_link_hash_entry *) bh;
1868 BFD_ASSERT (h != NULL);
1869 h->mark = 1;
1870 if (h->is_weakalias)
1871 weakdef (h)->mark = 1;
1872 sym = NULL;
1873 }
1874 }
1875
1876 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1877 }
1878
1879 /* Find dynamic relocs for H that apply to read-only sections. */
1880
1881 static asection *
1882 readonly_dynrelocs (struct elf_link_hash_entry *h)
1883 {
1884 struct elf_dyn_relocs *p;
1885
1886 for (p = tilepro_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1887 {
1888 asection *s = p->sec->output_section;
1889
1890 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1891 return p->sec;
1892 }
1893 return NULL;
1894 }
1895
1896 /* Adjust a symbol defined by a dynamic object and referenced by a
1897 regular object. The current definition is in some section of the
1898 dynamic object, but we're not including those sections. We have to
1899 change the definition to something the rest of the link can
1900 understand. */
1901
1902 static bfd_boolean
1903 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1904 struct elf_link_hash_entry *h)
1905 {
1906 struct tilepro_elf_link_hash_table *htab;
1907 asection *s, *srel;
1908
1909 htab = tilepro_elf_hash_table (info);
1910 BFD_ASSERT (htab != NULL);
1911
1912 /* Make sure we know what is going on here. */
1913 BFD_ASSERT (htab->elf.dynobj != NULL
1914 && (h->needs_plt
1915 || h->is_weakalias
1916 || (h->def_dynamic
1917 && h->ref_regular
1918 && !h->def_regular)));
1919
1920 /* If this is a function, put it in the procedure linkage table. We
1921 will fill in the contents of the procedure linkage table later
1922 (although we could actually do it here). */
1923 if (h->type == STT_FUNC || h->needs_plt)
1924 {
1925 if (h->plt.refcount <= 0
1926 || SYMBOL_CALLS_LOCAL (info, h)
1927 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1928 && h->root.type == bfd_link_hash_undefweak))
1929 {
1930 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1931 reloc in an input file, but the symbol was never referred
1932 to by a dynamic object, or if all references were garbage
1933 collected. In such a case, we don't actually need to build
1934 a procedure linkage table, and we can just do a
1935 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1936 h->plt.offset = (bfd_vma) -1;
1937 h->needs_plt = 0;
1938 }
1939
1940 return TRUE;
1941 }
1942 else
1943 h->plt.offset = (bfd_vma) -1;
1944
1945 /* If this is a weak symbol, and there is a real definition, the
1946 processor independent code will have arranged for us to see the
1947 real definition first, and we can just use the same value. */
1948 if (h->is_weakalias)
1949 {
1950 struct elf_link_hash_entry *def = weakdef (h);
1951 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1952 h->root.u.def.section = def->root.u.def.section;
1953 h->root.u.def.value = def->root.u.def.value;
1954 return TRUE;
1955 }
1956
1957 /* This is a reference to a symbol defined by a dynamic object which
1958 is not a function. */
1959
1960 /* If we are creating a shared library, we must presume that the
1961 only references to the symbol are via the global offset table.
1962 For such cases we need not do anything here; the relocations will
1963 be handled correctly by relocate_section. */
1964 if (bfd_link_pic (info))
1965 return TRUE;
1966
1967 /* If there are no references to this symbol that do not use the
1968 GOT, we don't need to generate a copy reloc. */
1969 if (!h->non_got_ref)
1970 return TRUE;
1971
1972 /* If -z nocopyreloc was given, we won't generate them either. */
1973 if (info->nocopyreloc)
1974 {
1975 h->non_got_ref = 0;
1976 return TRUE;
1977 }
1978
1979 /* If we don't find any dynamic relocs in read-only sections, then
1980 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1981 if (!readonly_dynrelocs (h))
1982 {
1983 h->non_got_ref = 0;
1984 return TRUE;
1985 }
1986
1987 /* We must allocate the symbol in our .dynbss section, which will
1988 become part of the .bss section of the executable. There will be
1989 an entry for this symbol in the .dynsym section. The dynamic
1990 object will contain position independent code, so all references
1991 from the dynamic object to this symbol will go through the global
1992 offset table. The dynamic linker will use the .dynsym entry to
1993 determine the address it must put in the global offset table, so
1994 both the dynamic object and the regular object will refer to the
1995 same memory location for the variable. */
1996
1997 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
1998 to copy the initial value out of the dynamic object and into the
1999 runtime process image. We need to remember the offset into the
2000 .rel.bss section we are going to use. */
2001 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2002 {
2003 s = htab->elf.sdynrelro;
2004 srel = htab->elf.sreldynrelro;
2005 }
2006 else
2007 {
2008 s = htab->elf.sdynbss;
2009 srel = htab->elf.srelbss;
2010 }
2011 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2012 {
2013 srel->size += TILEPRO_ELF_RELA_BYTES;
2014 h->needs_copy = 1;
2015 }
2016
2017 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2018 }
2019
2020 /* Allocate space in .plt, .got and associated reloc sections for
2021 dynamic relocs. */
2022
2023 static bfd_boolean
2024 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2025 {
2026 struct bfd_link_info *info;
2027 struct tilepro_elf_link_hash_table *htab;
2028 struct tilepro_elf_link_hash_entry *eh;
2029 struct elf_dyn_relocs *p;
2030
2031 if (h->root.type == bfd_link_hash_indirect)
2032 return TRUE;
2033
2034 info = (struct bfd_link_info *) inf;
2035 htab = tilepro_elf_hash_table (info);
2036 BFD_ASSERT (htab != NULL);
2037
2038 if (htab->elf.dynamic_sections_created
2039 && h->plt.refcount > 0)
2040 {
2041 /* Make sure this symbol is output as a dynamic symbol.
2042 Undefined weak syms won't yet be marked as dynamic. */
2043 if (h->dynindx == -1
2044 && !h->forced_local)
2045 {
2046 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2047 return FALSE;
2048 }
2049
2050 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2051 {
2052 asection *s = htab->elf.splt;
2053
2054 /* Allocate room for the header. */
2055 if (s->size == 0)
2056 {
2057 s->size = PLT_ENTRY_SIZE;
2058 }
2059
2060 h->plt.offset = s->size;
2061
2062 /* If this symbol is not defined in a regular file, and we are
2063 not generating a shared library, then set the symbol to this
2064 location in the .plt. This is required to make function
2065 pointers compare as equal between the normal executable and
2066 the shared library. */
2067 if (! bfd_link_pic (info)
2068 && !h->def_regular)
2069 {
2070 h->root.u.def.section = s;
2071 h->root.u.def.value = h->plt.offset;
2072 }
2073
2074 /* Make room for this entry. */
2075 s->size += PLT_ENTRY_SIZE;
2076
2077 /* We also need to make an entry in the .got.plt section. */
2078 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2079
2080 /* We also need to make an entry in the .rela.plt section. */
2081 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2082 }
2083 else
2084 {
2085 h->plt.offset = (bfd_vma) -1;
2086 h->needs_plt = 0;
2087 }
2088 }
2089 else
2090 {
2091 h->plt.offset = (bfd_vma) -1;
2092 h->needs_plt = 0;
2093 }
2094
2095 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2096 requiring no TLS entry. */
2097 if (h->got.refcount > 0
2098 && bfd_link_executable (info)
2099 && h->dynindx == -1
2100 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2101 h->got.offset = (bfd_vma) -1;
2102 else if (h->got.refcount > 0)
2103 {
2104 asection *s;
2105 bfd_boolean dyn;
2106 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2107
2108 /* Make sure this symbol is output as a dynamic symbol.
2109 Undefined weak syms won't yet be marked as dynamic. */
2110 if (h->dynindx == -1
2111 && !h->forced_local)
2112 {
2113 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2114 return FALSE;
2115 }
2116
2117 s = htab->elf.sgot;
2118 h->got.offset = s->size;
2119 s->size += TILEPRO_BYTES_PER_WORD;
2120 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2121 if (tls_type == GOT_TLS_GD)
2122 s->size += TILEPRO_BYTES_PER_WORD;
2123 dyn = htab->elf.dynamic_sections_created;
2124 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2125 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2126 global. */
2127 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2128 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2129 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2130 bfd_link_pic (info),
2131 h))
2132 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2133 }
2134 else
2135 h->got.offset = (bfd_vma) -1;
2136
2137 eh = (struct tilepro_elf_link_hash_entry *) h;
2138 if (eh->dyn_relocs == NULL)
2139 return TRUE;
2140
2141 /* In the shared -Bsymbolic case, discard space allocated for
2142 dynamic pc-relative relocs against symbols which turn out to be
2143 defined in regular objects. For the normal shared case, discard
2144 space for pc-relative relocs that have become local due to symbol
2145 visibility changes. */
2146
2147 if (bfd_link_pic (info))
2148 {
2149 if (SYMBOL_CALLS_LOCAL (info, h))
2150 {
2151 struct elf_dyn_relocs **pp;
2152
2153 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2154 {
2155 p->count -= p->pc_count;
2156 p->pc_count = 0;
2157 if (p->count == 0)
2158 *pp = p->next;
2159 else
2160 pp = &p->next;
2161 }
2162 }
2163
2164 /* Also discard relocs on undefined weak syms with non-default
2165 visibility. */
2166 if (eh->dyn_relocs != NULL
2167 && h->root.type == bfd_link_hash_undefweak)
2168 {
2169 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2170 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2171 eh->dyn_relocs = NULL;
2172
2173 /* Make sure undefined weak symbols are output as a dynamic
2174 symbol in PIEs. */
2175 else if (h->dynindx == -1
2176 && !h->forced_local)
2177 {
2178 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2179 return FALSE;
2180 }
2181 }
2182 }
2183 else
2184 {
2185 /* For the non-shared case, discard space for relocs against
2186 symbols which turn out to need copy relocs or are not
2187 dynamic. */
2188
2189 if (!h->non_got_ref
2190 && ((h->def_dynamic
2191 && !h->def_regular)
2192 || (htab->elf.dynamic_sections_created
2193 && (h->root.type == bfd_link_hash_undefweak
2194 || h->root.type == bfd_link_hash_undefined))))
2195 {
2196 /* Make sure this symbol is output as a dynamic symbol.
2197 Undefined weak syms won't yet be marked as dynamic. */
2198 if (h->dynindx == -1
2199 && !h->forced_local)
2200 {
2201 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2202 return FALSE;
2203 }
2204
2205 /* If that succeeded, we know we'll be keeping all the
2206 relocs. */
2207 if (h->dynindx != -1)
2208 goto keep;
2209 }
2210
2211 eh->dyn_relocs = NULL;
2212
2213 keep: ;
2214 }
2215
2216 /* Finally, allocate space. */
2217 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2218 {
2219 asection *sreloc = elf_section_data (p->sec)->sreloc;
2220 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2221 }
2222
2223 return TRUE;
2224 }
2225
2226 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2227 read-only sections. */
2228
2229 static bfd_boolean
2230 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2231 {
2232 asection *sec;
2233
2234 if (h->root.type == bfd_link_hash_indirect)
2235 return TRUE;
2236
2237 sec = readonly_dynrelocs (h);
2238 if (sec != NULL)
2239 {
2240 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2241
2242 info->flags |= DF_TEXTREL;
2243 info->callbacks->minfo
2244 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2245 sec->owner, h->root.root.string, sec);
2246
2247 /* Not an error, just cut short the traversal. */
2248 return FALSE;
2249 }
2250 return TRUE;
2251 }
2252
2253 /* Return true if the dynamic symbol for a given section should be
2254 omitted when creating a shared library. */
2255
2256 static bfd_boolean
2257 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2258 struct bfd_link_info *info,
2259 asection *p)
2260 {
2261 /* We keep the .got section symbol so that explicit relocations
2262 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2263 can be turned into relocations against the .got symbol. */
2264 if (strcmp (p->name, ".got") == 0)
2265 return FALSE;
2266
2267 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2268 }
2269
2270 /* Set the sizes of the dynamic sections. */
2271
2272 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2273
2274 static bfd_boolean
2275 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2276 struct bfd_link_info *info)
2277 {
2278 (void)output_bfd;
2279
2280 struct tilepro_elf_link_hash_table *htab;
2281 bfd *dynobj;
2282 asection *s;
2283 bfd *ibfd;
2284
2285 htab = tilepro_elf_hash_table (info);
2286 BFD_ASSERT (htab != NULL);
2287 dynobj = htab->elf.dynobj;
2288 BFD_ASSERT (dynobj != NULL);
2289
2290 if (elf_hash_table (info)->dynamic_sections_created)
2291 {
2292 /* Set the contents of the .interp section to the interpreter. */
2293 if (bfd_link_executable (info) && !info->nointerp)
2294 {
2295 s = bfd_get_linker_section (dynobj, ".interp");
2296 BFD_ASSERT (s != NULL);
2297 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2298 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2299 }
2300 }
2301
2302 /* Set up .got offsets for local syms, and space for local dynamic
2303 relocs. */
2304 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2305 {
2306 bfd_signed_vma *local_got;
2307 bfd_signed_vma *end_local_got;
2308 char *local_tls_type;
2309 bfd_size_type locsymcount;
2310 Elf_Internal_Shdr *symtab_hdr;
2311 asection *srel;
2312
2313 if (! is_tilepro_elf (ibfd))
2314 continue;
2315
2316 for (s = ibfd->sections; s != NULL; s = s->next)
2317 {
2318 struct elf_dyn_relocs *p;
2319
2320 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2321 {
2322 if (!bfd_is_abs_section (p->sec)
2323 && bfd_is_abs_section (p->sec->output_section))
2324 {
2325 /* Input section has been discarded, either because
2326 it is a copy of a linkonce section or due to
2327 linker script /DISCARD/, so we'll be discarding
2328 the relocs too. */
2329 }
2330 else if (p->count != 0)
2331 {
2332 srel = elf_section_data (p->sec)->sreloc;
2333 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2334 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2335 {
2336 info->flags |= DF_TEXTREL;
2337
2338 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2339 p->sec->owner, p->sec);
2340 }
2341 }
2342 }
2343 }
2344
2345 local_got = elf_local_got_refcounts (ibfd);
2346 if (!local_got)
2347 continue;
2348
2349 symtab_hdr = &elf_symtab_hdr (ibfd);
2350 locsymcount = symtab_hdr->sh_info;
2351 end_local_got = local_got + locsymcount;
2352 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2353 s = htab->elf.sgot;
2354 srel = htab->elf.srelgot;
2355 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2356 {
2357 if (*local_got > 0)
2358 {
2359 *local_got = s->size;
2360 s->size += TILEPRO_BYTES_PER_WORD;
2361 if (*local_tls_type == GOT_TLS_GD)
2362 s->size += TILEPRO_BYTES_PER_WORD;
2363 if (bfd_link_pic (info)
2364 || *local_tls_type == GOT_TLS_GD
2365 || *local_tls_type == GOT_TLS_IE)
2366 srel->size += TILEPRO_ELF_RELA_BYTES;
2367 }
2368 else
2369 *local_got = (bfd_vma) -1;
2370 }
2371 }
2372
2373 /* Allocate global sym .plt and .got entries, and space for global
2374 sym dynamic relocs. */
2375 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2376
2377 if (elf_hash_table (info)->dynamic_sections_created)
2378 {
2379 /* If the .got section is more than 0x8000 bytes, we add
2380 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2381 bit relocations have a greater chance of working. */
2382 if (htab->elf.sgot->size >= 0x8000
2383 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2384 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2385 }
2386
2387 if (htab->elf.sgotplt)
2388 {
2389 struct elf_link_hash_entry *got;
2390 got = elf_link_hash_lookup (elf_hash_table (info),
2391 "_GLOBAL_OFFSET_TABLE_",
2392 FALSE, FALSE, FALSE);
2393
2394 /* Don't allocate .got.plt section if there are no GOT nor PLT
2395 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2396 if ((got == NULL
2397 || !got->ref_regular_nonweak)
2398 && (htab->elf.sgotplt->size
2399 == GOTPLT_HEADER_SIZE)
2400 && (htab->elf.splt == NULL
2401 || htab->elf.splt->size == 0)
2402 && (htab->elf.sgot == NULL
2403 || (htab->elf.sgot->size
2404 == get_elf_backend_data (output_bfd)->got_header_size)))
2405 htab->elf.sgotplt->size = 0;
2406 }
2407
2408 /* The check_relocs and adjust_dynamic_symbol entry points have
2409 determined the sizes of the various dynamic sections. Allocate
2410 memory for them. */
2411 for (s = dynobj->sections; s != NULL; s = s->next)
2412 {
2413 if ((s->flags & SEC_LINKER_CREATED) == 0)
2414 continue;
2415
2416 if (s == htab->elf.splt
2417 || s == htab->elf.sgot
2418 || s == htab->elf.sgotplt
2419 || s == htab->elf.sdynbss
2420 || s == htab->elf.sdynrelro)
2421 {
2422 /* Strip this section if we don't need it; see the
2423 comment below. */
2424 }
2425 else if (strncmp (s->name, ".rela", 5) == 0)
2426 {
2427 if (s->size != 0)
2428 {
2429 /* We use the reloc_count field as a counter if we need
2430 to copy relocs into the output file. */
2431 s->reloc_count = 0;
2432 }
2433 }
2434 else
2435 {
2436 /* It's not one of our sections. */
2437 continue;
2438 }
2439
2440 if (s->size == 0)
2441 {
2442 /* If we don't need this section, strip it from the
2443 output file. This is mostly to handle .rela.bss and
2444 .rela.plt. We must create both sections in
2445 create_dynamic_sections, because they must be created
2446 before the linker maps input sections to output
2447 sections. The linker does that before
2448 adjust_dynamic_symbol is called, and it is that
2449 function which decides whether anything needs to go
2450 into these sections. */
2451 s->flags |= SEC_EXCLUDE;
2452 continue;
2453 }
2454
2455 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2456 continue;
2457
2458 /* Allocate memory for the section contents. Zero the memory
2459 for the benefit of .rela.plt, which has 4 unused entries
2460 at the beginning, and we don't want garbage. */
2461 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2462 if (s->contents == NULL)
2463 return FALSE;
2464 }
2465
2466 if (elf_hash_table (info)->dynamic_sections_created)
2467 {
2468 /* Add some entries to the .dynamic section. We fill in the
2469 values later, in tilepro_elf_finish_dynamic_sections, but we
2470 must add the entries now so that we get the correct size for
2471 the .dynamic section. The DT_DEBUG entry is filled in by the
2472 dynamic linker and used by the debugger. */
2473 #define add_dynamic_entry(TAG, VAL) \
2474 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2475
2476 if (bfd_link_executable (info))
2477 {
2478 if (!add_dynamic_entry (DT_DEBUG, 0))
2479 return FALSE;
2480 }
2481
2482 if (htab->elf.srelplt->size != 0)
2483 {
2484 if (!add_dynamic_entry (DT_PLTGOT, 0)
2485 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2486 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2487 || !add_dynamic_entry (DT_JMPREL, 0))
2488 return FALSE;
2489 }
2490
2491 if (!add_dynamic_entry (DT_RELA, 0)
2492 || !add_dynamic_entry (DT_RELASZ, 0)
2493 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2494 return FALSE;
2495
2496 /* If any dynamic relocs apply to a read-only section,
2497 then we need a DT_TEXTREL entry. */
2498 if ((info->flags & DF_TEXTREL) == 0)
2499 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2500
2501 if (info->flags & DF_TEXTREL)
2502 {
2503 if (!add_dynamic_entry (DT_TEXTREL, 0))
2504 return FALSE;
2505 }
2506 }
2507 #undef add_dynamic_entry
2508
2509 return TRUE;
2510 }
2511 \f
2512 /* Return the base VMA address which should be subtracted from real addresses
2513 when resolving @dtpoff relocation.
2514 This is PT_TLS segment p_vaddr. */
2515
2516 static bfd_vma
2517 dtpoff_base (struct bfd_link_info *info)
2518 {
2519 /* If tls_sec is NULL, we should have signalled an error already. */
2520 if (elf_hash_table (info)->tls_sec == NULL)
2521 return 0;
2522 return elf_hash_table (info)->tls_sec->vma;
2523 }
2524
2525 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2526
2527 static bfd_vma
2528 tpoff (struct bfd_link_info *info, bfd_vma address)
2529 {
2530 struct elf_link_hash_table *htab = elf_hash_table (info);
2531
2532 /* If tls_sec is NULL, we should have signalled an error already. */
2533 if (htab->tls_sec == NULL)
2534 return 0;
2535
2536 return (address - htab->tls_sec->vma);
2537 }
2538
2539 /* Replace the MASK bits in ADDR with those in INSN, for the next
2540 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2541
2542 static void
2543 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2544 const bfd_byte *insn)
2545 {
2546 int i;
2547 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2548 {
2549 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2550 }
2551 }
2552
2553 /* Mask to extract the bits corresponding to an instruction in a
2554 specific pipe of a bundle. */
2555 static const bfd_byte insn_mask_X1[] = {
2556 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2557 };
2558
2559 /* Mask to extract the bits corresponding to an instruction in a
2560 specific pipe of a bundle, minus the destination operand and the
2561 first source operand. */
2562 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2563 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2564 };
2565
2566 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2567 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2568 };
2569
2570 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2571 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2572 };
2573
2574 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2575 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2576 };
2577
2578 /* Mask to extract the first source operand of an instruction. */
2579 static const bfd_byte srca_mask_X0[] = {
2580 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2581 };
2582
2583 static const bfd_byte srca_mask_X1[] = {
2584 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2585 };
2586
2587 /* Various instructions synthesized to support tls references. */
2588
2589 /* move r0, r0 in the X1 pipe, used for tls le. */
2590 static const bfd_byte insn_tls_le_move_X1[] = {
2591 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2592 };
2593
2594 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2595 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2596 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2597 };
2598
2599 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2600 static const bfd_byte insn_tls_ie_lw_X1[] = {
2601 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2602 };
2603
2604 /* add r0, r0, tp in various pipes, used for tls ie. */
2605 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2606 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2607 };
2608 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2609 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2610 };
2611
2612 /* move r0, r0 in various pipes, used for tls gd. */
2613 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2614 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2615 };
2616 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2617 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2618 };
2619
2620 /* Relocate an TILEPRO ELF section.
2621
2622 The RELOCATE_SECTION function is called by the new ELF backend linker
2623 to handle the relocations for a section.
2624
2625 The relocs are always passed as Rela structures.
2626
2627 This function is responsible for adjusting the section contents as
2628 necessary, and (if generating a relocatable output file) adjusting
2629 the reloc addend as necessary.
2630
2631 This function does not have to worry about setting the reloc
2632 address or the reloc symbol index.
2633
2634 LOCAL_SYMS is a pointer to the swapped in local symbols.
2635
2636 LOCAL_SECTIONS is an array giving the section in the input file
2637 corresponding to the st_shndx field of each local symbol.
2638
2639 The global hash table entry for the global symbols can be found
2640 via elf_sym_hashes (input_bfd).
2641
2642 When generating relocatable output, this function must handle
2643 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2644 going to be the section symbol corresponding to the output
2645 section, which means that the addend must be adjusted
2646 accordingly. */
2647
2648 static bfd_boolean
2649 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2650 bfd *input_bfd, asection *input_section,
2651 bfd_byte *contents, Elf_Internal_Rela *relocs,
2652 Elf_Internal_Sym *local_syms,
2653 asection **local_sections)
2654 {
2655 struct tilepro_elf_link_hash_table *htab;
2656 Elf_Internal_Shdr *symtab_hdr;
2657 struct elf_link_hash_entry **sym_hashes;
2658 bfd_vma *local_got_offsets;
2659 bfd_vma got_base;
2660 asection *sreloc;
2661 Elf_Internal_Rela *rel;
2662 Elf_Internal_Rela *relend;
2663 int num_relocs;
2664
2665 htab = tilepro_elf_hash_table (info);
2666 BFD_ASSERT (htab != NULL);
2667 symtab_hdr = &elf_symtab_hdr (input_bfd);
2668 sym_hashes = elf_sym_hashes (input_bfd);
2669 local_got_offsets = elf_local_got_offsets (input_bfd);
2670
2671 if (elf_hash_table (info)->hgot == NULL)
2672 got_base = 0;
2673 else
2674 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2675
2676 sreloc = elf_section_data (input_section)->sreloc;
2677
2678 rel = relocs;
2679 num_relocs = input_section->reloc_count;
2680 relend = relocs + num_relocs;
2681 for (; rel < relend; rel++)
2682 {
2683 int r_type, tls_type;
2684 bfd_boolean is_tls_iele, is_tls_le;
2685 reloc_howto_type *howto;
2686 unsigned long r_symndx;
2687 struct elf_link_hash_entry *h;
2688 Elf_Internal_Sym *sym;
2689 tilepro_create_func create_func;
2690 asection *sec;
2691 bfd_vma relocation;
2692 bfd_reloc_status_type r;
2693 const char *name;
2694 bfd_vma off;
2695 bfd_boolean is_plt = FALSE;
2696 bfd_boolean resolved_to_zero;
2697 bfd_boolean unresolved_reloc;
2698
2699 r_type = ELF32_R_TYPE (rel->r_info);
2700 if (r_type == R_TILEPRO_GNU_VTINHERIT
2701 || r_type == R_TILEPRO_GNU_VTENTRY)
2702 continue;
2703
2704 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2705 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2706
2707 howto = tilepro_elf_howto_table + r_type;
2708
2709 /* This is a final link. */
2710 r_symndx = ELF32_R_SYM (rel->r_info);
2711 h = NULL;
2712 sym = NULL;
2713 sec = NULL;
2714 unresolved_reloc = FALSE;
2715 if (r_symndx < symtab_hdr->sh_info)
2716 {
2717 sym = local_syms + r_symndx;
2718 sec = local_sections[r_symndx];
2719 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2720 }
2721 else
2722 {
2723 bfd_boolean warned ATTRIBUTE_UNUSED;
2724 bfd_boolean ignored ATTRIBUTE_UNUSED;
2725
2726 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2727 r_symndx, symtab_hdr, sym_hashes,
2728 h, sec, relocation,
2729 unresolved_reloc, warned, ignored);
2730 if (warned)
2731 {
2732 /* To avoid generating warning messages about truncated
2733 relocations, set the relocation's address to be the same as
2734 the start of this section. */
2735 if (input_section->output_section != NULL)
2736 relocation = input_section->output_section->vma;
2737 else
2738 relocation = 0;
2739 }
2740 }
2741
2742 if (sec != NULL && discarded_section (sec))
2743 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2744 rel, 1, relend, howto, 0, contents);
2745
2746 if (bfd_link_relocatable (info))
2747 continue;
2748
2749 if (h != NULL)
2750 name = h->root.root.string;
2751 else
2752 {
2753 name = (bfd_elf_string_from_elf_section
2754 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2755 if (name == NULL || *name == '\0')
2756 name = bfd_section_name (sec);
2757 }
2758
2759 switch (r_type)
2760 {
2761 case R_TILEPRO_TLS_GD_CALL:
2762 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2763 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2764 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2765 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2766 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2767 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2768 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2769 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2770 tls_type = GOT_UNKNOWN;
2771 if (h == NULL && local_got_offsets)
2772 tls_type =
2773 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2774 else if (h != NULL)
2775 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2776
2777 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2778 is_tls_le = is_tls_iele && (bfd_link_executable (info)
2779 && (h == NULL || h->dynindx == -1));
2780
2781 if (r_type == R_TILEPRO_TLS_GD_CALL)
2782 {
2783 if (is_tls_le)
2784 {
2785 /* GD -> LE */
2786 tilepro_replace_insn (contents + rel->r_offset,
2787 insn_mask_X1, insn_tls_le_move_X1);
2788 continue;
2789 }
2790 else if (is_tls_iele)
2791 {
2792 /* GD -> IE */
2793 tilepro_replace_insn (contents + rel->r_offset,
2794 insn_mask_X1, insn_tls_ie_lw_X1);
2795 continue;
2796 }
2797
2798 /* GD -> GD */
2799 h = (struct elf_link_hash_entry *)
2800 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2801 FALSE, TRUE);
2802 BFD_ASSERT (h != NULL);
2803 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2804 howto = tilepro_elf_howto_table + r_type;
2805 }
2806 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2807 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2808 {
2809 if (is_tls_le)
2810 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2811 insn_tls_le_move_zero_X0X1);
2812 }
2813 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2814 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2815 {
2816 if (is_tls_le)
2817 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2818 insn_tls_le_move_zero_X0X1);
2819 }
2820 else
2821 {
2822 const bfd_byte *mask = NULL;
2823 const bfd_byte *add_insn = NULL;
2824
2825 switch (r_type)
2826 {
2827 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2828 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2829 : insn_tls_gd_add_X0X1;
2830 mask = insn_mask_X0_no_dest_no_srca;
2831 break;
2832 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2833 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2834 : insn_tls_gd_add_X0X1;
2835 mask = insn_mask_X1_no_dest_no_srca;
2836 break;
2837 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2838 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2839 : insn_tls_gd_add_Y0Y1;
2840 mask = insn_mask_Y0_no_dest_no_srca;
2841 break;
2842 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2843 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2844 : insn_tls_gd_add_Y0Y1;
2845 mask = insn_mask_Y1_no_dest_no_srca;
2846 break;
2847 }
2848
2849 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2850
2851 continue;
2852 }
2853 break;
2854 case R_TILEPRO_TLS_IE_LOAD:
2855 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
2856 /* IE -> LE */
2857 tilepro_replace_insn (contents + rel->r_offset,
2858 insn_mask_X1_no_dest_no_srca,
2859 insn_tls_le_move_X1);
2860 else
2861 /* IE -> IE */
2862 tilepro_replace_insn (contents + rel->r_offset,
2863 insn_mask_X1_no_dest_no_srca,
2864 insn_tls_ie_lw_X1);
2865 continue;
2866 break;
2867 default:
2868 break;
2869 }
2870
2871 resolved_to_zero = (h != NULL
2872 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2873
2874 switch (r_type)
2875 {
2876 case R_TILEPRO_IMM16_X0_GOT:
2877 case R_TILEPRO_IMM16_X1_GOT:
2878 case R_TILEPRO_IMM16_X0_GOT_LO:
2879 case R_TILEPRO_IMM16_X1_GOT_LO:
2880 case R_TILEPRO_IMM16_X0_GOT_HI:
2881 case R_TILEPRO_IMM16_X1_GOT_HI:
2882 case R_TILEPRO_IMM16_X0_GOT_HA:
2883 case R_TILEPRO_IMM16_X1_GOT_HA:
2884 /* Relocation is to the entry for this symbol in the global
2885 offset table. */
2886 if (htab->elf.sgot == NULL)
2887 abort ();
2888
2889 if (h != NULL)
2890 {
2891 bfd_boolean dyn;
2892
2893 off = h->got.offset;
2894 BFD_ASSERT (off != (bfd_vma) -1);
2895 dyn = elf_hash_table (info)->dynamic_sections_created;
2896
2897 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2898 bfd_link_pic (info),
2899 h)
2900 || (bfd_link_pic (info)
2901 && SYMBOL_REFERENCES_LOCAL (info, h)))
2902 {
2903 /* This is actually a static link, or it is a
2904 -Bsymbolic link and the symbol is defined
2905 locally, or the symbol was forced to be local
2906 because of a version file. We must initialize
2907 this entry in the global offset table. Since the
2908 offset must always be a multiple
2909 of 4 for 32-bit, we use the least significant bit
2910 to record whether we have initialized it already.
2911
2912 When doing a dynamic link, we create a .rela.got
2913 relocation entry to initialize the value. This
2914 is done in the finish_dynamic_symbol routine. */
2915 if ((off & 1) != 0)
2916 off &= ~1;
2917 else
2918 {
2919 bfd_put_32 (output_bfd, relocation,
2920 htab->elf.sgot->contents + off);
2921 h->got.offset |= 1;
2922 }
2923 }
2924 else
2925 unresolved_reloc = FALSE;
2926 }
2927 else
2928 {
2929 BFD_ASSERT (local_got_offsets != NULL
2930 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2931
2932 off = local_got_offsets[r_symndx];
2933
2934 /* The offset must always be a multiple of 4 on 32-bit.
2935 We use the least significant bit to record
2936 whether we have already processed this entry. */
2937 if ((off & 1) != 0)
2938 off &= ~1;
2939 else
2940 {
2941 if (bfd_link_pic (info))
2942 {
2943 asection *s;
2944 Elf_Internal_Rela outrel;
2945
2946 /* We need to generate a R_TILEPRO_RELATIVE reloc
2947 for the dynamic linker. */
2948 s = htab->elf.srelgot;
2949 BFD_ASSERT (s != NULL);
2950
2951 outrel.r_offset = (htab->elf.sgot->output_section->vma
2952 + htab->elf.sgot->output_offset
2953 + off);
2954 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2955 outrel.r_addend = relocation;
2956 relocation = 0;
2957 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2958 }
2959
2960 bfd_put_32 (output_bfd, relocation,
2961 htab->elf.sgot->contents + off);
2962 local_got_offsets[r_symndx] |= 1;
2963 }
2964 }
2965 relocation = off - got_base;
2966 break;
2967
2968 case R_TILEPRO_JOFFLONG_X1_PLT:
2969 /* Relocation is to the entry for this symbol in the
2970 procedure linkage table. */
2971 BFD_ASSERT (h != NULL);
2972
2973 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2974 {
2975 /* We didn't make a PLT entry for this symbol. This
2976 happens when statically linking PIC code, or when
2977 using -Bsymbolic. */
2978 break;
2979 }
2980
2981 relocation = (htab->elf.splt->output_section->vma
2982 + htab->elf.splt->output_offset
2983 + h->plt.offset);
2984 unresolved_reloc = FALSE;
2985 break;
2986
2987 case R_TILEPRO_32_PCREL:
2988 case R_TILEPRO_16_PCREL:
2989 case R_TILEPRO_8_PCREL:
2990 case R_TILEPRO_IMM16_X0_PCREL:
2991 case R_TILEPRO_IMM16_X1_PCREL:
2992 case R_TILEPRO_IMM16_X0_LO_PCREL:
2993 case R_TILEPRO_IMM16_X1_LO_PCREL:
2994 case R_TILEPRO_IMM16_X0_HI_PCREL:
2995 case R_TILEPRO_IMM16_X1_HI_PCREL:
2996 case R_TILEPRO_IMM16_X0_HA_PCREL:
2997 case R_TILEPRO_IMM16_X1_HA_PCREL:
2998 if (h != NULL
2999 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3000 break;
3001 /* Fall through. */
3002 case R_TILEPRO_32:
3003 case R_TILEPRO_16:
3004 case R_TILEPRO_8:
3005 case R_TILEPRO_LO16:
3006 case R_TILEPRO_HI16:
3007 case R_TILEPRO_HA16:
3008 case R_TILEPRO_COPY:
3009 case R_TILEPRO_GLOB_DAT:
3010 case R_TILEPRO_JMP_SLOT:
3011 case R_TILEPRO_RELATIVE:
3012 case R_TILEPRO_BROFF_X1:
3013 case R_TILEPRO_JOFFLONG_X1:
3014 case R_TILEPRO_IMM8_X0:
3015 case R_TILEPRO_IMM8_Y0:
3016 case R_TILEPRO_IMM8_X1:
3017 case R_TILEPRO_IMM8_Y1:
3018 case R_TILEPRO_DEST_IMM8_X1:
3019 case R_TILEPRO_MT_IMM15_X1:
3020 case R_TILEPRO_MF_IMM15_X1:
3021 case R_TILEPRO_IMM16_X0:
3022 case R_TILEPRO_IMM16_X1:
3023 case R_TILEPRO_IMM16_X0_LO:
3024 case R_TILEPRO_IMM16_X1_LO:
3025 case R_TILEPRO_IMM16_X0_HI:
3026 case R_TILEPRO_IMM16_X1_HI:
3027 case R_TILEPRO_IMM16_X0_HA:
3028 case R_TILEPRO_IMM16_X1_HA:
3029 case R_TILEPRO_MMSTART_X0:
3030 case R_TILEPRO_MMEND_X0:
3031 case R_TILEPRO_MMSTART_X1:
3032 case R_TILEPRO_MMEND_X1:
3033 case R_TILEPRO_SHAMT_X0:
3034 case R_TILEPRO_SHAMT_X1:
3035 case R_TILEPRO_SHAMT_Y0:
3036 case R_TILEPRO_SHAMT_Y1:
3037 if ((input_section->flags & SEC_ALLOC) == 0)
3038 break;
3039
3040 if ((bfd_link_pic (info)
3041 && (h == NULL
3042 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3043 && !resolved_to_zero)
3044 || h->root.type != bfd_link_hash_undefweak)
3045 && (! howto->pc_relative
3046 || !SYMBOL_CALLS_LOCAL (info, h)))
3047 || (!bfd_link_pic (info)
3048 && h != NULL
3049 && h->dynindx != -1
3050 && !h->non_got_ref
3051 && ((h->def_dynamic
3052 && !h->def_regular)
3053 || h->root.type == bfd_link_hash_undefweak
3054 || h->root.type == bfd_link_hash_undefined)))
3055 {
3056 Elf_Internal_Rela outrel;
3057 bfd_boolean skip, relocate = FALSE;
3058
3059 /* When generating a shared object, these relocations
3060 are copied into the output file to be resolved at run
3061 time. */
3062
3063 BFD_ASSERT (sreloc != NULL);
3064
3065 skip = FALSE;
3066
3067 outrel.r_offset =
3068 _bfd_elf_section_offset (output_bfd, info, input_section,
3069 rel->r_offset);
3070 if (outrel.r_offset == (bfd_vma) -1)
3071 skip = TRUE;
3072 else if (outrel.r_offset == (bfd_vma) -2)
3073 skip = TRUE, relocate = TRUE;
3074 outrel.r_offset += (input_section->output_section->vma
3075 + input_section->output_offset);
3076
3077 switch (r_type)
3078 {
3079 case R_TILEPRO_32_PCREL:
3080 case R_TILEPRO_16_PCREL:
3081 case R_TILEPRO_8_PCREL:
3082 /* If the symbol is not dynamic, we should not keep
3083 a dynamic relocation. But an .rela.* slot has been
3084 allocated for it, output R_TILEPRO_NONE.
3085 FIXME: Add code tracking needed dynamic relocs as
3086 e.g. i386 has. */
3087 if (h->dynindx == -1)
3088 skip = TRUE, relocate = TRUE;
3089 break;
3090 }
3091
3092 if (skip)
3093 memset (&outrel, 0, sizeof outrel);
3094 /* h->dynindx may be -1 if the symbol was marked to
3095 become local. */
3096 else if (h != NULL &&
3097 h->dynindx != -1
3098 && (! is_plt
3099 || !bfd_link_pic (info)
3100 || !SYMBOLIC_BIND (info, h)
3101 || !h->def_regular))
3102 {
3103 BFD_ASSERT (h->dynindx != -1);
3104 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3105 outrel.r_addend = rel->r_addend;
3106 }
3107 else
3108 {
3109 if (r_type == R_TILEPRO_32)
3110 {
3111 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3112 outrel.r_addend = relocation + rel->r_addend;
3113 }
3114 else
3115 {
3116 long indx;
3117
3118 outrel.r_addend = relocation + rel->r_addend;
3119
3120 if (is_plt)
3121 sec = htab->elf.splt;
3122
3123 if (bfd_is_abs_section (sec))
3124 indx = 0;
3125 else if (sec == NULL || sec->owner == NULL)
3126 {
3127 bfd_set_error (bfd_error_bad_value);
3128 return FALSE;
3129 }
3130 else
3131 {
3132 asection *osec;
3133
3134 /* We are turning this relocation into one
3135 against a section symbol. It would be
3136 proper to subtract the symbol's value,
3137 osec->vma, from the emitted reloc addend,
3138 but ld.so expects buggy relocs. */
3139 osec = sec->output_section;
3140 indx = elf_section_data (osec)->dynindx;
3141
3142 if (indx == 0)
3143 {
3144 osec = htab->elf.text_index_section;
3145 indx = elf_section_data (osec)->dynindx;
3146 }
3147
3148 /* FIXME: we really should be able to link non-pic
3149 shared libraries. */
3150 if (indx == 0)
3151 {
3152 BFD_FAIL ();
3153 _bfd_error_handler
3154 (_("%pB: probably compiled without -fPIC?"),
3155 input_bfd);
3156 bfd_set_error (bfd_error_bad_value);
3157 return FALSE;
3158 }
3159 }
3160
3161 outrel.r_info = ELF32_R_INFO (indx, r_type);
3162 }
3163 }
3164
3165 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3166
3167 /* This reloc will be computed at runtime, so there's no
3168 need to do anything now. */
3169 if (! relocate)
3170 continue;
3171 }
3172 break;
3173
3174 case R_TILEPRO_IMM16_X0_TLS_LE:
3175 case R_TILEPRO_IMM16_X1_TLS_LE:
3176 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3177 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3178 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3179 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3180 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3181 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3182 if (!bfd_link_executable (info))
3183 {
3184 Elf_Internal_Rela outrel;
3185 bfd_boolean skip;
3186
3187 BFD_ASSERT (sreloc != NULL);
3188 skip = FALSE;
3189 outrel.r_offset =
3190 _bfd_elf_section_offset (output_bfd, info, input_section,
3191 rel->r_offset);
3192 if (outrel.r_offset == (bfd_vma) -1)
3193 skip = TRUE;
3194 else if (outrel.r_offset == (bfd_vma) -2)
3195 skip = TRUE;
3196 outrel.r_offset += (input_section->output_section->vma
3197 + input_section->output_offset);
3198 if (skip)
3199 memset (&outrel, 0, sizeof outrel);
3200 else
3201 {
3202 outrel.r_info = ELF32_R_INFO (0, r_type);
3203 outrel.r_addend = relocation - dtpoff_base (info)
3204 + rel->r_addend;
3205 }
3206
3207 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3208 continue;
3209 }
3210 relocation = tpoff (info, relocation);
3211 break;
3212
3213 case R_TILEPRO_IMM16_X0_TLS_GD:
3214 case R_TILEPRO_IMM16_X1_TLS_GD:
3215 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3216 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3217 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3218 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3219 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3220 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3221 case R_TILEPRO_IMM16_X0_TLS_IE:
3222 case R_TILEPRO_IMM16_X1_TLS_IE:
3223 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3224 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3225 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3226 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3227 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3228 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3229 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3230 tls_type = GOT_UNKNOWN;
3231 if (h == NULL && local_got_offsets)
3232 tls_type
3233 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3234 else if (h != NULL)
3235 {
3236 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3237 if (bfd_link_executable (info)
3238 && h->dynindx == -1
3239 && tls_type == GOT_TLS_IE)
3240 r_type = tilepro_tls_translate_to_le (r_type);
3241 }
3242 if (tls_type == GOT_TLS_IE)
3243 r_type = tilepro_tls_translate_to_ie (r_type);
3244
3245 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3246 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3247 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3248 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3249 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3250 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3251 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3252 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3253 {
3254 relocation = tpoff (info, relocation);
3255 break;
3256 }
3257
3258 if (h != NULL)
3259 {
3260 off = h->got.offset;
3261 h->got.offset |= 1;
3262 }
3263 else
3264 {
3265 BFD_ASSERT (local_got_offsets != NULL);
3266 off = local_got_offsets[r_symndx];
3267 local_got_offsets[r_symndx] |= 1;
3268 }
3269
3270 if (htab->elf.sgot == NULL)
3271 abort ();
3272
3273 if ((off & 1) != 0)
3274 off &= ~1;
3275 else
3276 {
3277 Elf_Internal_Rela outrel;
3278 int indx = 0;
3279 bfd_boolean need_relocs = FALSE;
3280
3281 if (htab->elf.srelgot == NULL)
3282 abort ();
3283
3284 if (h != NULL)
3285 {
3286 bfd_boolean dyn;
3287 dyn = htab->elf.dynamic_sections_created;
3288
3289 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3290 bfd_link_pic (info),
3291 h)
3292 && (!bfd_link_pic (info)
3293 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3294 {
3295 indx = h->dynindx;
3296 }
3297 }
3298
3299 /* The GOT entries have not been initialized yet. Do it
3300 now, and emit any relocations. */
3301 if ((bfd_link_pic (info) || indx != 0)
3302 && (h == NULL
3303 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3304 || h->root.type != bfd_link_hash_undefweak))
3305 need_relocs = TRUE;
3306
3307 switch (r_type)
3308 {
3309 case R_TILEPRO_IMM16_X0_TLS_IE:
3310 case R_TILEPRO_IMM16_X1_TLS_IE:
3311 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3312 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3313 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3314 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3315 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3316 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3317 if (need_relocs) {
3318 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3319 outrel.r_offset = (htab->elf.sgot->output_section->vma
3320 + htab->elf.sgot->output_offset + off);
3321 outrel.r_addend = 0;
3322 if (indx == 0)
3323 outrel.r_addend = relocation - dtpoff_base (info);
3324 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3325 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3326 &outrel);
3327 } else {
3328 bfd_put_32 (output_bfd, tpoff (info, relocation),
3329 htab->elf.sgot->contents + off);
3330 }
3331 break;
3332
3333 case R_TILEPRO_IMM16_X0_TLS_GD:
3334 case R_TILEPRO_IMM16_X1_TLS_GD:
3335 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3336 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3337 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3338 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3339 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3340 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3341 if (need_relocs) {
3342 outrel.r_offset = (htab->elf.sgot->output_section->vma
3343 + htab->elf.sgot->output_offset + off);
3344 outrel.r_addend = 0;
3345 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3346 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3347 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3348 &outrel);
3349 if (indx == 0)
3350 {
3351 BFD_ASSERT (! unresolved_reloc);
3352 bfd_put_32 (output_bfd,
3353 relocation - dtpoff_base (info),
3354 (htab->elf.sgot->contents + off +
3355 TILEPRO_BYTES_PER_WORD));
3356 }
3357 else
3358 {
3359 bfd_put_32 (output_bfd, 0,
3360 (htab->elf.sgot->contents + off +
3361 TILEPRO_BYTES_PER_WORD));
3362 outrel.r_info = ELF32_R_INFO (indx,
3363 R_TILEPRO_TLS_DTPOFF32);
3364 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3365 tilepro_elf_append_rela_32 (output_bfd,
3366 htab->elf.srelgot, &outrel);
3367 }
3368 }
3369
3370 else {
3371 /* If we are not emitting relocations for a
3372 general dynamic reference, then we must be in a
3373 static link or an executable link with the
3374 symbol binding locally. Mark it as belonging
3375 to module 1, the executable. */
3376 bfd_put_32 (output_bfd, 1,
3377 htab->elf.sgot->contents + off );
3378 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3379 htab->elf.sgot->contents + off +
3380 TILEPRO_BYTES_PER_WORD);
3381 }
3382 break;
3383 }
3384 }
3385
3386 if (off >= (bfd_vma) -2)
3387 abort ();
3388
3389 relocation = off - got_base;
3390 unresolved_reloc = FALSE;
3391 howto = tilepro_elf_howto_table + r_type;
3392 break;
3393
3394 default:
3395 break;
3396 }
3397
3398 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3399 because such sections are not SEC_ALLOC and thus ld.so will
3400 not process them. */
3401 if (unresolved_reloc
3402 && !((input_section->flags & SEC_DEBUGGING) != 0
3403 && h->def_dynamic)
3404 && _bfd_elf_section_offset (output_bfd, info, input_section,
3405 rel->r_offset) != (bfd_vma) -1)
3406 _bfd_error_handler
3407 /* xgettext:c-format */
3408 (_("%pB(%pA+%#" PRIx64 "): "
3409 "unresolvable %s relocation against symbol `%s'"),
3410 input_bfd,
3411 input_section,
3412 (uint64_t) rel->r_offset,
3413 howto->name,
3414 h->root.root.string);
3415
3416 r = bfd_reloc_continue;
3417
3418 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3419 * we will increment bit 16. The howto->rightshift takes care
3420 * of the rest for us. */
3421 switch (r_type)
3422 {
3423 case R_TILEPRO_HA16:
3424 case R_TILEPRO_IMM16_X0_HA:
3425 case R_TILEPRO_IMM16_X1_HA:
3426 case R_TILEPRO_IMM16_X0_HA_PCREL:
3427 case R_TILEPRO_IMM16_X1_HA_PCREL:
3428 case R_TILEPRO_IMM16_X0_GOT_HA:
3429 case R_TILEPRO_IMM16_X1_GOT_HA:
3430 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3431 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3432 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3433 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3434 relocation += 0x8000;
3435 break;
3436 }
3437
3438 /* Get the operand creation function, if any. */
3439 create_func = reloc_to_create_func[r_type];
3440 if (create_func == NULL)
3441 {
3442 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3443 contents, rel->r_offset,
3444 relocation, rel->r_addend);
3445 }
3446 else
3447 {
3448 if (howto->pc_relative)
3449 {
3450 relocation -=
3451 input_section->output_section->vma + input_section->output_offset;
3452 if (howto->pcrel_offset)
3453 relocation -= rel->r_offset;
3454 }
3455
3456 bfd_byte *data;
3457
3458 /* Add the relocation addend if any to the final target value */
3459 relocation += rel->r_addend;
3460
3461 /* Do basic range checking */
3462 r = bfd_check_overflow (howto->complain_on_overflow,
3463 howto->bitsize,
3464 howto->rightshift,
3465 32,
3466 relocation);
3467
3468 /*
3469 * Write the relocated value out into the raw section data.
3470 * Don't put a relocation out in the .rela section.
3471 */
3472 tilepro_bundle_bits mask = create_func(-1);
3473 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3474
3475 /* Only touch bytes while the mask is not 0, so we
3476 don't write to out of bounds memory if this is actually
3477 a 16-bit switch instruction. */
3478 for (data = contents + rel->r_offset; mask != 0; data++)
3479 {
3480 bfd_byte byte_mask = (bfd_byte)mask;
3481 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3482 mask >>= 8;
3483 value >>= 8;
3484 }
3485 }
3486
3487 if (r != bfd_reloc_ok)
3488 {
3489 const char *msg = NULL;
3490
3491 switch (r)
3492 {
3493 case bfd_reloc_overflow:
3494 (*info->callbacks->reloc_overflow)
3495 (info, (h ? &h->root : NULL), name, howto->name,
3496 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3497 break;
3498
3499 case bfd_reloc_undefined:
3500 (*info->callbacks->undefined_symbol)
3501 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3502 break;
3503
3504 case bfd_reloc_outofrange:
3505 msg = _("internal error: out of range error");
3506 break;
3507
3508 case bfd_reloc_notsupported:
3509 msg = _("internal error: unsupported relocation error");
3510 break;
3511
3512 case bfd_reloc_dangerous:
3513 msg = _("internal error: dangerous relocation");
3514 break;
3515
3516 default:
3517 msg = _("internal error: unknown error");
3518 break;
3519 }
3520
3521 if (msg)
3522 (*info->callbacks->warning) (info, msg, name, input_bfd,
3523 input_section, rel->r_offset);
3524 }
3525 }
3526
3527 return TRUE;
3528 }
3529
3530 /* Finish up dynamic symbol handling. We set the contents of various
3531 dynamic sections here. */
3532
3533 static bfd_boolean
3534 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3535 struct bfd_link_info *info,
3536 struct elf_link_hash_entry *h,
3537 Elf_Internal_Sym *sym)
3538 {
3539 struct tilepro_elf_link_hash_table *htab;
3540
3541 htab = tilepro_elf_hash_table (info);
3542 BFD_ASSERT (htab != NULL);
3543
3544 if (h->plt.offset != (bfd_vma) -1)
3545 {
3546 asection *splt;
3547 asection *srela;
3548 asection *sgotplt;
3549 Elf_Internal_Rela rela;
3550 bfd_byte *loc;
3551 bfd_vma r_offset;
3552
3553 int rela_index;
3554
3555 /* This symbol has an entry in the PLT. Set it up. */
3556
3557 BFD_ASSERT (h->dynindx != -1);
3558
3559 splt = htab->elf.splt;
3560 srela = htab->elf.srelplt;
3561 sgotplt = htab->elf.sgotplt;
3562
3563 if (splt == NULL || srela == NULL)
3564 abort ();
3565
3566 /* Fill in the entry in the procedure linkage table. */
3567 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3568 &r_offset);
3569
3570 /* Fill in the entry in the global offset table, which initially points
3571 to the beginning of the plt. */
3572 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3573 sgotplt->contents + r_offset);
3574
3575 /* Fill in the entry in the .rela.plt section. */
3576 rela.r_offset = (sgotplt->output_section->vma
3577 + sgotplt->output_offset
3578 + r_offset);
3579 rela.r_addend = 0;
3580 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3581
3582 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3583 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3584
3585 if (!h->def_regular)
3586 {
3587 /* Mark the symbol as undefined, rather than as defined in
3588 the .plt section. Leave the value alone. */
3589 sym->st_shndx = SHN_UNDEF;
3590 /* If the symbol is weak, we do need to clear the value.
3591 Otherwise, the PLT entry would provide a definition for
3592 the symbol even if the symbol wasn't defined anywhere,
3593 and so the symbol would never be NULL. */
3594 if (!h->ref_regular_nonweak)
3595 sym->st_value = 0;
3596 }
3597 }
3598
3599 if (h->got.offset != (bfd_vma) -1
3600 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3601 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3602 {
3603 asection *sgot;
3604 asection *srela;
3605 Elf_Internal_Rela rela;
3606
3607 /* This symbol has an entry in the GOT. Set it up. */
3608
3609 sgot = htab->elf.sgot;
3610 srela = htab->elf.srelgot;
3611 BFD_ASSERT (sgot != NULL && srela != NULL);
3612
3613 rela.r_offset = (sgot->output_section->vma
3614 + sgot->output_offset
3615 + (h->got.offset &~ (bfd_vma) 1));
3616
3617 /* If this is a -Bsymbolic link, and the symbol is defined
3618 locally, we just want to emit a RELATIVE reloc. Likewise if
3619 the symbol was forced to be local because of a version file.
3620 The entry in the global offset table will already have been
3621 initialized in the relocate_section function. */
3622 if (bfd_link_pic (info)
3623 && (info->symbolic || h->dynindx == -1)
3624 && h->def_regular)
3625 {
3626 asection *sec = h->root.u.def.section;
3627 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3628 rela.r_addend = (h->root.u.def.value
3629 + sec->output_section->vma
3630 + sec->output_offset);
3631 }
3632 else
3633 {
3634 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3635 rela.r_addend = 0;
3636 }
3637
3638 bfd_put_32 (output_bfd, 0,
3639 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3640 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3641 }
3642
3643 if (h->needs_copy)
3644 {
3645 asection *s;
3646 Elf_Internal_Rela rela;
3647
3648 /* This symbols needs a copy reloc. Set it up. */
3649 BFD_ASSERT (h->dynindx != -1);
3650
3651 rela.r_offset = (h->root.u.def.value
3652 + h->root.u.def.section->output_section->vma
3653 + h->root.u.def.section->output_offset);
3654 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3655 rela.r_addend = 0;
3656 if (h->root.u.def.section == htab->elf.sdynrelro)
3657 s = htab->elf.sreldynrelro;
3658 else
3659 s = htab->elf.srelbss;
3660 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3661 }
3662
3663 /* Mark some specially defined symbols as absolute. */
3664 if (h == htab->elf.hdynamic
3665 || (h == htab->elf.hgot || h == htab->elf.hplt))
3666 sym->st_shndx = SHN_ABS;
3667
3668 return TRUE;
3669 }
3670
3671 /* Finish up the dynamic sections. */
3672
3673 static bfd_boolean
3674 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3675 bfd *dynobj, asection *sdyn,
3676 asection *splt ATTRIBUTE_UNUSED)
3677 {
3678 Elf32_External_Dyn *dyncon, *dynconend;
3679 struct tilepro_elf_link_hash_table *htab;
3680
3681 htab = tilepro_elf_hash_table (info);
3682 BFD_ASSERT (htab != NULL);
3683 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3684 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3685 for (; dyncon < dynconend; dyncon++)
3686 {
3687 Elf_Internal_Dyn dyn;
3688 asection *s;
3689
3690 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3691
3692 switch (dyn.d_tag)
3693 {
3694 case DT_PLTGOT:
3695 s = htab->elf.sgotplt;
3696 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3697 break;
3698 case DT_JMPREL:
3699 s = htab->elf.srelplt;
3700 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3701 break;
3702 case DT_PLTRELSZ:
3703 s = htab->elf.srelplt;
3704 dyn.d_un.d_val = s->size;
3705 break;
3706 default:
3707 continue;
3708 }
3709
3710 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3711 }
3712 return TRUE;
3713 }
3714
3715 static bfd_boolean
3716 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3717 struct bfd_link_info *info)
3718 {
3719 bfd *dynobj;
3720 asection *sdyn;
3721 struct tilepro_elf_link_hash_table *htab;
3722
3723 htab = tilepro_elf_hash_table (info);
3724 BFD_ASSERT (htab != NULL);
3725 dynobj = htab->elf.dynobj;
3726
3727 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3728
3729 if (elf_hash_table (info)->dynamic_sections_created)
3730 {
3731 asection *splt;
3732 bfd_boolean ret;
3733
3734 splt = htab->elf.splt;
3735 BFD_ASSERT (splt != NULL && sdyn != NULL);
3736
3737 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3738
3739 if (!ret)
3740 return ret;
3741
3742 /* Fill in the first entry in the procedure linkage table. */
3743 if (splt->size > 0)
3744 {
3745 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3746 memset (splt->contents + PLT_HEADER_SIZE, 0,
3747 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3748 }
3749
3750 if (elf_section_data (splt->output_section) != NULL)
3751 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3752 = PLT_ENTRY_SIZE;
3753 }
3754
3755 if (htab->elf.sgotplt)
3756 {
3757 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3758 {
3759 _bfd_error_handler
3760 (_("discarded output section: `%pA'"), htab->elf.sgotplt);
3761 return FALSE;
3762 }
3763
3764 if (htab->elf.sgotplt->size > 0)
3765 {
3766 /* Write the first two entries in .got.plt, needed for the dynamic
3767 linker. */
3768 bfd_put_32 (output_bfd, (bfd_vma) -1,
3769 htab->elf.sgotplt->contents);
3770 bfd_put_32 (output_bfd, (bfd_vma) 0,
3771 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3772 }
3773
3774 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3775 = GOT_ENTRY_SIZE;
3776 }
3777
3778 if (htab->elf.sgot)
3779 {
3780 if (htab->elf.sgot->size > 0)
3781 {
3782 /* Set the first entry in the global offset table to the address of
3783 the dynamic section. */
3784 bfd_vma val = (sdyn ?
3785 sdyn->output_section->vma + sdyn->output_offset :
3786 0);
3787 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3788 }
3789
3790 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3791 = GOT_ENTRY_SIZE;
3792 }
3793
3794 return TRUE;
3795 }
3796
3797 \f
3798
3799 /* Return address for Ith PLT stub in section PLT, for relocation REL
3800 or (bfd_vma) -1 if it should not be included. */
3801
3802 static bfd_vma
3803 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3804 const arelent *rel ATTRIBUTE_UNUSED)
3805 {
3806 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3807 }
3808
3809 static enum elf_reloc_type_class
3810 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3811 const asection *rel_sec ATTRIBUTE_UNUSED,
3812 const Elf_Internal_Rela *rela)
3813 {
3814 switch ((int) ELF32_R_TYPE (rela->r_info))
3815 {
3816 case R_TILEPRO_RELATIVE:
3817 return reloc_class_relative;
3818 case R_TILEPRO_JMP_SLOT:
3819 return reloc_class_plt;
3820 case R_TILEPRO_COPY:
3821 return reloc_class_copy;
3822 default:
3823 return reloc_class_normal;
3824 }
3825 }
3826
3827 static int
3828 tilepro_additional_program_headers (bfd *abfd,
3829 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3830 {
3831 /* Each .intrpt section specified by the user adds another PT_LOAD
3832 header since the sections are discontiguous. */
3833 static const char intrpt_sections[4][9] =
3834 {
3835 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3836 };
3837 int count = 0;
3838 int i;
3839
3840 for (i = 0; i < 4; i++)
3841 {
3842 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3843 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3844 ++count;
3845 }
3846
3847 /* Add four "padding" headers in to leave room in case a custom linker
3848 script does something fancy. Otherwise ld complains that it ran
3849 out of program headers and refuses to link. */
3850 count += 4;
3851
3852 return count;
3853 }
3854
3855 #define ELF_ARCH bfd_arch_tilepro
3856 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3857 #define ELF_MACHINE_CODE EM_TILEPRO
3858 #define ELF_MAXPAGESIZE 0x10000
3859 #define ELF_COMMONPAGESIZE 0x10000
3860
3861 #define TARGET_LITTLE_SYM tilepro_elf32_vec
3862 #define TARGET_LITTLE_NAME "elf32-tilepro"
3863
3864 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3865
3866 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3867 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3868 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3869
3870 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3871 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3872 #define elf_backend_check_relocs tilepro_elf_check_relocs
3873 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3874 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3875 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3876 #define elf_backend_relocate_section tilepro_elf_relocate_section
3877 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3878 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3879 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3880 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
3881 #define elf_info_to_howto_rel NULL
3882 #define elf_info_to_howto tilepro_info_to_howto_rela
3883 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
3884 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
3885 #define elf_backend_additional_program_headers tilepro_additional_program_headers
3886
3887 #define bfd_elf32_mkobject tilepro_elf_mkobject
3888
3889 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3890
3891 #define elf_backend_can_gc_sections 1
3892 #define elf_backend_can_refcount 1
3893 #define elf_backend_want_got_plt 1
3894 #define elf_backend_plt_readonly 1
3895 /* Align PLT mod 64 byte L2 line size. */
3896 #define elf_backend_plt_alignment 6
3897 #define elf_backend_want_plt_sym 1
3898 #define elf_backend_got_header_size GOT_ENTRY_SIZE
3899 #define elf_backend_want_dynrelro 1
3900 #define elf_backend_rela_normal 1
3901 #define elf_backend_default_execstack 0
3902
3903 #include "elf32-target.h"
GDB Binutils - Deliverables
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