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[binutils-gdb.git] / bfd / elf32-tilepro.c
blob7731318b5e8436490fb64139604ab435ff1bbdb7
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2017 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilepro.h"
26 #include "opcode/tilepro.h"
27 #include "libiberty.h"
28 #include "elf32-tilepro.h"
29
30 #define TILEPRO_BYTES_PER_WORD 4
31
32 static reloc_howto_type tilepro_elf_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_TILEPRO_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* The TILEPro linker needs to keep track of the number of relocs that it
683 decides to copy as dynamic relocs in check_relocs for each symbol.
684 This is so that it can later discard them if they are found to be
685 unnecessary. We store the information in a field extending the
686 regular ELF linker hash table. */
687
688 struct tilepro_elf_dyn_relocs
689 {
690 struct tilepro_elf_dyn_relocs *next;
691
692 /* The input section of the reloc. */
693 asection *sec;
694
695 /* Total number of relocs copied for the input section. */
696 bfd_size_type count;
697
698 /* Number of pc-relative relocs copied for the input section. */
699 bfd_size_type pc_count;
700 };
701
702 /* TILEPRO ELF linker hash entry. */
703
704 struct tilepro_elf_link_hash_entry
705 {
706 struct elf_link_hash_entry elf;
707
708 /* Track dynamic relocs copied for this symbol. */
709 struct tilepro_elf_dyn_relocs *dyn_relocs;
710
711 #define GOT_UNKNOWN 0
712 #define GOT_NORMAL 1
713 #define GOT_TLS_GD 2
714 #define GOT_TLS_IE 4
715 unsigned char tls_type;
716 };
717
718 #define tilepro_elf_hash_entry(ent) \
719 ((struct tilepro_elf_link_hash_entry *)(ent))
720
721 struct _bfd_tilepro_elf_obj_tdata
722 {
723 struct elf_obj_tdata root;
724
725 /* tls_type for each local got entry. */
726 char *local_got_tls_type;
727 };
728
729 #define _bfd_tilepro_elf_tdata(abfd) \
730 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
731
732 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
733 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
734
735 #define is_tilepro_elf(bfd) \
736 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
737 && elf_tdata (bfd) != NULL \
738 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
739
740 /* Allocate TILEPro ELF private object data. */
741
742 static bfd_boolean
743 tilepro_elf_mkobject (bfd *abfd)
744 {
745 return bfd_elf_allocate_object (abfd,
746 sizeof (struct _bfd_tilepro_elf_obj_tdata),
747 TILEPRO_ELF_DATA);
748 }
749
750 #include "elf/common.h"
751 #include "elf/internal.h"
752
753 struct tilepro_elf_link_hash_table
754 {
755 struct elf_link_hash_table elf;
756
757 /* Small local sym to section mapping cache. */
758 struct sym_cache sym_cache;
759 };
760
761 /* Get the Tilepro ELF linker hash table from a link_info structure. */
762 #define tilepro_elf_hash_table(p) \
763 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
764 == TILEPRO_ELF_DATA \
765 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
766
767 static reloc_howto_type *
768 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
769 bfd_reloc_code_real_type code)
770 {
771 unsigned int i;
772
773 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
774 {
775 const reloc_map * entry;
776
777 entry = tilepro_reloc_map + i;
778
779 if (entry->bfd_reloc_val == code)
780 return entry->table + (entry->tilepro_reloc_val
781 - entry->table[0].type);
782 }
783
784 return NULL;
785 }
786
787 static reloc_howto_type *
788 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
789 const char *r_name)
790 {
791 unsigned int i;
792
793 for (i = 0;
794 i < (sizeof (tilepro_elf_howto_table)
795 / sizeof (tilepro_elf_howto_table[0]));
796 i++)
797 if (tilepro_elf_howto_table[i].name != NULL
798 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
799 return &tilepro_elf_howto_table[i];
800
801 return NULL;
802 }
803
804 /* Set the howto pointer for an TILEPro ELF reloc. */
805
806 static void
807 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
808 arelent * cache_ptr,
809 Elf_Internal_Rela * dst)
810 {
811 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
812
813 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
814 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
815 else if (r_type - R_TILEPRO_GNU_VTINHERIT
816 <= (unsigned int) R_TILEPRO_GNU_VTENTRY)
817 cache_ptr->howto
818 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
819 else
820 abort ();
821 }
822
823 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
824
825 static const tilepro_create_func reloc_to_create_func[] =
826 {
827 /* The first fourteen relocation types don't correspond to operands */
828 NULL,
829 NULL,
830 NULL,
831 NULL,
832 NULL,
833 NULL,
834 NULL,
835 NULL,
836 NULL,
837 NULL,
838 NULL,
839 NULL,
840 NULL,
841 NULL,
842
843 /* The remaining relocations are used for immediate operands */
844 create_BrOff_X1,
845 create_JOffLong_X1,
846 create_JOffLong_X1,
847 create_Imm8_X0,
848 create_Imm8_Y0,
849 create_Imm8_X1,
850 create_Imm8_Y1,
851 create_MT_Imm15_X1,
852 create_MF_Imm15_X1,
853 create_Imm16_X0,
854 create_Imm16_X1,
855 create_Imm16_X0,
856 create_Imm16_X1,
857 create_Imm16_X0,
858 create_Imm16_X1,
859 create_Imm16_X0,
860 create_Imm16_X1,
861 create_Imm16_X0,
862 create_Imm16_X1,
863 create_Imm16_X0,
864 create_Imm16_X1,
865 create_Imm16_X0,
866 create_Imm16_X1,
867 create_Imm16_X0,
868 create_Imm16_X1,
869 create_Imm16_X0,
870 create_Imm16_X1,
871 create_Imm16_X0,
872 create_Imm16_X1,
873 create_Imm16_X0,
874 create_Imm16_X1,
875 create_Imm16_X0,
876 create_Imm16_X1,
877 create_MMStart_X0,
878 create_MMEnd_X0,
879 create_MMStart_X1,
880 create_MMEnd_X1,
881 create_ShAmt_X0,
882 create_ShAmt_X1,
883 create_ShAmt_Y0,
884 create_ShAmt_Y1,
885
886 create_Dest_Imm8_X1,
887 NULL,
888 NULL,
889 NULL,
890 NULL,
891 NULL,
892 NULL,
893 NULL,
894 NULL,
895 NULL,
896 NULL,
897
898 create_Imm16_X0,
899 create_Imm16_X1,
900 create_Imm16_X0,
901 create_Imm16_X1,
902 create_Imm16_X0,
903 create_Imm16_X1,
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908 create_Imm16_X0,
909 create_Imm16_X1,
910 create_Imm16_X0,
911 create_Imm16_X1,
912 create_Imm16_X0,
913 create_Imm16_X1,
914
915 NULL,
916 NULL,
917 NULL,
918
919 create_Imm16_X0,
920 create_Imm16_X1,
921 create_Imm16_X0,
922 create_Imm16_X1,
923 create_Imm16_X0,
924 create_Imm16_X1,
925 create_Imm16_X0,
926 create_Imm16_X1,
927 };
928
929 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
930
931 /* Support for core dump NOTE sections. */
932
933 static bfd_boolean
934 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
935 {
936 int offset;
937 size_t size;
938
939 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
940 return FALSE;
941
942 /* pr_cursig */
943 elf_tdata (abfd)->core->signal =
944 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
945
946 /* pr_pid */
947 elf_tdata (abfd)->core->pid =
948 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
949
950 /* pr_reg */
951 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
952 size = TILEPRO_GREGSET_T_SIZE;
953
954 /* Make a ".reg/999" section. */
955 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
956 size, note->descpos + offset);
957 }
958
959 static bfd_boolean
960 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
961 {
962 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
963 return FALSE;
964
965 elf_tdata (abfd)->core->program
966 = _bfd_elfcore_strndup (abfd,
967 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
968 16);
969 elf_tdata (abfd)->core->command
970 = _bfd_elfcore_strndup (abfd,
971 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
972 ELF_PR_PSARGS_SIZE);
973
974
975 /* Note that for some reason, a spurious space is tacked
976 onto the end of the args in some (at least one anyway)
977 implementations, so strip it off if it exists. */
978 {
979 char *command = elf_tdata (abfd)->core->command;
980 int n = strlen (command);
981
982 if (0 < n && command[n - 1] == ' ')
983 command[n - 1] = '\0';
984 }
985
986 return TRUE;
987 }
988
989
990 static void
991 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
992 {
993 Elf32_External_Rela *loc32;
994
995 loc32 = (Elf32_External_Rela *) s->contents;
996 loc32 += s->reloc_count++;
997 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
998 }
999
1000 /* PLT/GOT stuff */
1001
1002 /* The procedure linkage table starts with the following header:
1003
1004 {
1005 rli r29, r29, 16
1006 lwadd r28, r27, 4
1007 }
1008 lw r27, r27
1009 {
1010 info 10 ## SP not offset, return PC in LR
1011 jr r27
1012 }
1013
1014 Subsequent entries are the following, jumping to the header at the end:
1015
1016 lnk r28
1017 1:
1018 {
1019 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1020 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1021 }
1022 {
1023 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1024 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1025 }
1026 {
1027 auli r29, zero, MY_PLT_INDEX
1028 lw r28, r28
1029 }
1030 {
1031 info 10 ## SP not offset, return PC in LR
1032 jr r28
1033 }
1034
1035 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1036 16 bits as an unsigned offset; if we use the low bits we would get an
1037 unwanted sign extension. The PLT header then rotates the index to get the
1038 right value, before calling the resolution routine. This computation can
1039 fit in unused bundle slots so it's free.
1040
1041 This code sequence lets the code at at the start of the PLT determine
1042 which PLT entry was executed by examining 'r29'.
1043
1044 Note that MY_PLT_INDEX skips over the header entries, so the first
1045 actual jump table entry has index zero.
1046 */
1047
1048 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1049 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1050
1051 #define PLT_HEADER_SIZE \
1052 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1053 #define PLT_ENTRY_SIZE \
1054 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1055
1056 /* The size in bytes of an entry in the global offset table. */
1057
1058 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1059
1060 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1061
1062
1063 static const bfd_byte
1064 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1065 {
1066 0x5d, 0x07, 0x03, 0x70,
1067 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1068 0x00, 0x50, 0xba, 0x6d,
1069 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1070 0xff, 0xaf, 0x10, 0x50,
1071 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1072 };
1073
1074 static const bfd_byte
1075 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1076 {
1077 0x00, 0x50, 0x16, 0x70,
1078 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1079 0x1c, 0x07, 0x00, 0xa0,
1080 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1081 0xdd, 0x0f, 0x00, 0x30,
1082 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1083 0xff, 0xaf, 0x10, 0x50,
1084 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1085 0x00, 0x00, 0x00, 0x00,
1086 0x00, 0x00, 0x00, 0x00,
1087 };
1088
1089 static const bfd_byte
1090 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1091 {
1092 0x00, 0x50, 0x16, 0x70,
1093 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1094 0x1c, 0x07, 0x00, 0xb0,
1095 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1096 0x1c, 0x07, 0x00, 0xa0,
1097 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1098 0xdd, 0x0f, 0x00, 0x30,
1099 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1100 0xff, 0xaf, 0x10, 0x50,
1101 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1102 };
1103
1104 static bfd_vma
1105 tilepro_ha16(bfd_vma vma)
1106 {
1107 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1108 }
1109
1110 static int
1111 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1112 bfd_vma *r_offset)
1113 {
1114 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1115 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1116 tilepro_bundle_bits *pc;
1117
1118 /* Compute the distance from the got entry to the lnk. */
1119 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1120 + sgotplt->output_offset
1121 + got_offset
1122 - splt->output_section->vma
1123 - splt->output_offset
1124 - offset
1125 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1126
1127 /* Compute the distance to GOTPLT[0]. */
1128 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1129
1130 /* Check whether we can use the short plt entry with 16-bit offset. */
1131 bfd_boolean short_plt_entry =
1132 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1133
1134 /* Copy the plt entry template. */
1135 memcpy (splt->contents + offset,
1136 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1137 PLT_ENTRY_SIZE);
1138
1139 /* Write the immediate offsets. */
1140 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1141 pc++;
1142
1143 if (!short_plt_entry)
1144 {
1145 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1146 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1147 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1148 }
1149
1150 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1151 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1152 *pc++ |= create_Imm16_X0 (dist_got_entry)
1153 | create_Imm16_X1 (dist_got0);
1154
1155 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1156 *pc |= create_Imm16_X0 (plt_index);
1157
1158 /* Set the relocation offset. */
1159 *r_offset = got_offset;
1160
1161 return plt_index;
1162 }
1163
1164 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1165
1166
1167 /* Create an entry in an TILEPro ELF linker hash table. */
1168
1169 static struct bfd_hash_entry *
1170 link_hash_newfunc (struct bfd_hash_entry *entry,
1171 struct bfd_hash_table *table, const char *string)
1172 {
1173 /* Allocate the structure if it has not already been allocated by a
1174 subclass. */
1175 if (entry == NULL)
1176 {
1177 entry =
1178 bfd_hash_allocate (table,
1179 sizeof (struct tilepro_elf_link_hash_entry));
1180 if (entry == NULL)
1181 return entry;
1182 }
1183
1184 /* Call the allocation method of the superclass. */
1185 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1186 if (entry != NULL)
1187 {
1188 struct tilepro_elf_link_hash_entry *eh;
1189
1190 eh = (struct tilepro_elf_link_hash_entry *) entry;
1191 eh->dyn_relocs = NULL;
1192 eh->tls_type = GOT_UNKNOWN;
1193 }
1194
1195 return entry;
1196 }
1197
1198 /* Create a TILEPRO ELF linker hash table. */
1199
1200 static struct bfd_link_hash_table *
1201 tilepro_elf_link_hash_table_create (bfd *abfd)
1202 {
1203 struct tilepro_elf_link_hash_table *ret;
1204 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1205
1206 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1207 if (ret == NULL)
1208 return NULL;
1209
1210 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1211 sizeof (struct tilepro_elf_link_hash_entry),
1212 TILEPRO_ELF_DATA))
1213 {
1214 free (ret);
1215 return NULL;
1216 }
1217
1218 return &ret->elf.root;
1219 }
1220
1221 /* Create the .got section. */
1222
1223 static bfd_boolean
1224 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1225 {
1226 flagword flags;
1227 asection *s, *s_got;
1228 struct elf_link_hash_entry *h;
1229 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1230 struct elf_link_hash_table *htab = elf_hash_table (info);
1231
1232 /* This function may be called more than once. */
1233 if (htab->sgot != NULL)
1234 return TRUE;
1235
1236 flags = bed->dynamic_sec_flags;
1237
1238 s = bfd_make_section_with_flags (abfd,
1239 (bed->rela_plts_and_copies_p
1240 ? ".rela.got" : ".rel.got"),
1241 (bed->dynamic_sec_flags
1242 | SEC_READONLY));
1243 if (s == NULL
1244 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1245 return FALSE;
1246 htab->srelgot = s;
1247
1248 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1249 if (s == NULL
1250 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1251 return FALSE;
1252 htab->sgot = s;
1253
1254 /* The first bit of the global offset table is the header. */
1255 s->size += bed->got_header_size;
1256
1257 if (bed->want_got_plt)
1258 {
1259 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1260 if (s == NULL
1261 || !bfd_set_section_alignment (abfd, s,
1262 bed->s->log_file_align))
1263 return FALSE;
1264 htab->sgotplt = s;
1265
1266 /* Reserve room for the header. */
1267 s->size += GOTPLT_HEADER_SIZE;
1268 }
1269
1270 if (bed->want_got_sym)
1271 {
1272 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1273 section. We don't do this in the linker script because we don't want
1274 to define the symbol if we are not creating a global offset
1275 table. */
1276 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1277 "_GLOBAL_OFFSET_TABLE_");
1278 elf_hash_table (info)->hgot = h;
1279 if (h == NULL)
1280 return FALSE;
1281 }
1282
1283 return TRUE;
1284 }
1285
1286 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1287 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1288 hash table. */
1289
1290 static bfd_boolean
1291 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1292 struct bfd_link_info *info)
1293 {
1294 if (!tilepro_elf_create_got_section (dynobj, info))
1295 return FALSE;
1296
1297 return _bfd_elf_create_dynamic_sections (dynobj, info);
1298 }
1299
1300 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1301
1302 static void
1303 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1304 struct elf_link_hash_entry *dir,
1305 struct elf_link_hash_entry *ind)
1306 {
1307 struct tilepro_elf_link_hash_entry *edir, *eind;
1308
1309 edir = (struct tilepro_elf_link_hash_entry *) dir;
1310 eind = (struct tilepro_elf_link_hash_entry *) ind;
1311
1312 if (eind->dyn_relocs != NULL)
1313 {
1314 if (edir->dyn_relocs != NULL)
1315 {
1316 struct tilepro_elf_dyn_relocs **pp;
1317 struct tilepro_elf_dyn_relocs *p;
1318
1319 /* Add reloc counts against the indirect sym to the direct sym
1320 list. Merge any entries against the same section. */
1321 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1322 {
1323 struct tilepro_elf_dyn_relocs *q;
1324
1325 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1326 if (q->sec == p->sec)
1327 {
1328 q->pc_count += p->pc_count;
1329 q->count += p->count;
1330 *pp = p->next;
1331 break;
1332 }
1333 if (q == NULL)
1334 pp = &p->next;
1335 }
1336 *pp = edir->dyn_relocs;
1337 }
1338
1339 edir->dyn_relocs = eind->dyn_relocs;
1340 eind->dyn_relocs = NULL;
1341 }
1342
1343 if (ind->root.type == bfd_link_hash_indirect
1344 && dir->got.refcount <= 0)
1345 {
1346 edir->tls_type = eind->tls_type;
1347 eind->tls_type = GOT_UNKNOWN;
1348 }
1349 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1350 }
1351
1352 static int
1353 tilepro_tls_translate_to_le (int r_type)
1354 {
1355 switch (r_type)
1356 {
1357 case R_TILEPRO_IMM16_X0_TLS_GD:
1358 case R_TILEPRO_IMM16_X0_TLS_IE:
1359 return R_TILEPRO_IMM16_X0_TLS_LE;
1360
1361 case R_TILEPRO_IMM16_X1_TLS_GD:
1362 case R_TILEPRO_IMM16_X1_TLS_IE:
1363 return R_TILEPRO_IMM16_X1_TLS_LE;
1364
1365 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1366 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1367 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1368
1369 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1370 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1371 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1372
1373 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1374 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1375 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1376
1377 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1378 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1379 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1380
1381 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1382 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1383 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1384
1385 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1386 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1387 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1388 }
1389 return r_type;
1390 }
1391
1392 static int
1393 tilepro_tls_translate_to_ie (int r_type)
1394 {
1395 switch (r_type)
1396 {
1397 case R_TILEPRO_IMM16_X0_TLS_GD:
1398 case R_TILEPRO_IMM16_X0_TLS_IE:
1399 return R_TILEPRO_IMM16_X0_TLS_IE;
1400
1401 case R_TILEPRO_IMM16_X1_TLS_GD:
1402 case R_TILEPRO_IMM16_X1_TLS_IE:
1403 return R_TILEPRO_IMM16_X1_TLS_IE;
1404
1405 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1406 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1407 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1408
1409 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1410 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1411 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1412
1413 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1414 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1415 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1416
1417 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1418 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1419 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1420
1421 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1422 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1423 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1424
1425 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1426 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1427 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1428 }
1429 return r_type;
1430 }
1431
1432 static int
1433 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1434 int is_local)
1435 {
1436 if (!bfd_link_executable (info))
1437 return r_type;
1438
1439 if (is_local)
1440 return tilepro_tls_translate_to_le (r_type);
1441 else
1442 return tilepro_tls_translate_to_ie (r_type);
1443 }
1444
1445 /* Look through the relocs for a section during the first phase, and
1446 allocate space in the global offset table or procedure linkage
1447 table. */
1448
1449 static bfd_boolean
1450 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1451 asection *sec, const Elf_Internal_Rela *relocs)
1452 {
1453 struct tilepro_elf_link_hash_table *htab;
1454 Elf_Internal_Shdr *symtab_hdr;
1455 struct elf_link_hash_entry **sym_hashes;
1456 const Elf_Internal_Rela *rel;
1457 const Elf_Internal_Rela *rel_end;
1458 asection *sreloc;
1459 int num_relocs;
1460
1461 if (bfd_link_relocatable (info))
1462 return TRUE;
1463
1464 htab = tilepro_elf_hash_table (info);
1465 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1466 sym_hashes = elf_sym_hashes (abfd);
1467
1468 sreloc = NULL;
1469
1470 num_relocs = sec->reloc_count;
1471
1472 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1473
1474 if (htab->elf.dynobj == NULL)
1475 htab->elf.dynobj = abfd;
1476
1477 rel_end = relocs + num_relocs;
1478 for (rel = relocs; rel < rel_end; rel++)
1479 {
1480 unsigned int r_type;
1481 unsigned int r_symndx;
1482 struct elf_link_hash_entry *h;
1483 int tls_type;
1484
1485 r_symndx = ELF32_R_SYM (rel->r_info);
1486 r_type = ELF32_R_TYPE (rel->r_info);
1487
1488 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1489 {
1490 /* xgettext:c-format */
1491 _bfd_error_handler (_("%B: bad symbol index: %d"),
1492 abfd, r_symndx);
1493 return FALSE;
1494 }
1495
1496 if (r_symndx < symtab_hdr->sh_info)
1497 h = NULL;
1498 else
1499 {
1500 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1501 while (h->root.type == bfd_link_hash_indirect
1502 || h->root.type == bfd_link_hash_warning)
1503 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1504
1505 /* PR15323, ref flags aren't set for references in the same
1506 object. */
1507 h->root.non_ir_ref_regular = 1;
1508 }
1509
1510 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1511 switch (r_type)
1512 {
1513 case R_TILEPRO_IMM16_X0_TLS_LE:
1514 case R_TILEPRO_IMM16_X1_TLS_LE:
1515 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1516 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1517 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1518 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1519 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1520 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1521 if (!bfd_link_executable (info))
1522 goto r_tilepro_plt32;
1523 break;
1524
1525 case R_TILEPRO_IMM16_X0_TLS_GD:
1526 case R_TILEPRO_IMM16_X1_TLS_GD:
1527 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1528 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1529 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1530 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1531 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1532 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1533 BFD_ASSERT (bfd_link_pic (info));
1534 tls_type = GOT_TLS_GD;
1535 goto have_got_reference;
1536
1537 case R_TILEPRO_IMM16_X0_TLS_IE:
1538 case R_TILEPRO_IMM16_X1_TLS_IE:
1539 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1540 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1541 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1542 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1543 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1544 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1545 tls_type = GOT_TLS_IE;
1546 if (!bfd_link_executable (info))
1547 info->flags |= DF_STATIC_TLS;
1548 goto have_got_reference;
1549
1550 case R_TILEPRO_IMM16_X0_GOT:
1551 case R_TILEPRO_IMM16_X1_GOT:
1552 case R_TILEPRO_IMM16_X0_GOT_LO:
1553 case R_TILEPRO_IMM16_X1_GOT_LO:
1554 case R_TILEPRO_IMM16_X0_GOT_HI:
1555 case R_TILEPRO_IMM16_X1_GOT_HI:
1556 case R_TILEPRO_IMM16_X0_GOT_HA:
1557 case R_TILEPRO_IMM16_X1_GOT_HA:
1558 tls_type = GOT_NORMAL;
1559 /* Fall Through */
1560
1561 have_got_reference:
1562 /* This symbol requires a global offset table entry. */
1563 {
1564 int old_tls_type;
1565
1566 if (h != NULL)
1567 {
1568 h->got.refcount += 1;
1569 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1570 }
1571 else
1572 {
1573 bfd_signed_vma *local_got_refcounts;
1574
1575 /* This is a global offset table entry for a local symbol. */
1576 local_got_refcounts = elf_local_got_refcounts (abfd);
1577 if (local_got_refcounts == NULL)
1578 {
1579 bfd_size_type size;
1580
1581 size = symtab_hdr->sh_info;
1582 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1583 local_got_refcounts = ((bfd_signed_vma *)
1584 bfd_zalloc (abfd, size));
1585 if (local_got_refcounts == NULL)
1586 return FALSE;
1587 elf_local_got_refcounts (abfd) = local_got_refcounts;
1588 _bfd_tilepro_elf_local_got_tls_type (abfd)
1589 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1590 }
1591 local_got_refcounts[r_symndx] += 1;
1592 old_tls_type =
1593 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1594 }
1595
1596 /* If a TLS symbol is accessed using IE at least once,
1597 there is no point to use dynamic model for it. */
1598 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1599 && (old_tls_type != GOT_TLS_GD
1600 || tls_type != GOT_TLS_IE))
1601 {
1602 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1603 tls_type = old_tls_type;
1604 else
1605 {
1606 _bfd_error_handler
1607 /* xgettext:c-format */
1608 (_("%B: `%s' accessed both as normal and thread local symbol"),
1609 abfd, h ? h->root.root.string : "<local>");
1610 return FALSE;
1611 }
1612 }
1613
1614 if (old_tls_type != tls_type)
1615 {
1616 if (h != NULL)
1617 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1618 else
1619 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1620 tls_type;
1621 }
1622 }
1623
1624 if (htab->elf.sgot == NULL)
1625 {
1626 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1627 return FALSE;
1628 }
1629 break;
1630
1631 case R_TILEPRO_TLS_GD_CALL:
1632 if (!bfd_link_executable (info))
1633 {
1634 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1635 against __tls_get_addr. */
1636 struct bfd_link_hash_entry *bh = NULL;
1637 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1638 "__tls_get_addr", 0,
1639 bfd_und_section_ptr, 0,
1640 NULL, FALSE, FALSE,
1641 &bh))
1642 return FALSE;
1643 h = (struct elf_link_hash_entry *) bh;
1644 }
1645 else
1646 break;
1647 /* Fall through */
1648
1649 case R_TILEPRO_JOFFLONG_X1_PLT:
1650 /* This symbol requires a procedure linkage table entry. We
1651 actually build the entry in adjust_dynamic_symbol,
1652 because this might be a case of linking PIC code without
1653 linking in any dynamic objects, in which case we don't
1654 need to generate a procedure linkage table after all. */
1655
1656 if (h != NULL)
1657 {
1658 h->needs_plt = 1;
1659 h->plt.refcount += 1;
1660 }
1661 break;
1662
1663 case R_TILEPRO_32_PCREL:
1664 case R_TILEPRO_16_PCREL:
1665 case R_TILEPRO_8_PCREL:
1666 case R_TILEPRO_IMM16_X0_PCREL:
1667 case R_TILEPRO_IMM16_X1_PCREL:
1668 case R_TILEPRO_IMM16_X0_LO_PCREL:
1669 case R_TILEPRO_IMM16_X1_LO_PCREL:
1670 case R_TILEPRO_IMM16_X0_HI_PCREL:
1671 case R_TILEPRO_IMM16_X1_HI_PCREL:
1672 case R_TILEPRO_IMM16_X0_HA_PCREL:
1673 case R_TILEPRO_IMM16_X1_HA_PCREL:
1674 if (h != NULL)
1675 h->non_got_ref = 1;
1676
1677 if (h != NULL
1678 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1679 break;
1680 /* Fall through. */
1681
1682 case R_TILEPRO_32:
1683 case R_TILEPRO_16:
1684 case R_TILEPRO_8:
1685 case R_TILEPRO_LO16:
1686 case R_TILEPRO_HI16:
1687 case R_TILEPRO_HA16:
1688 case R_TILEPRO_COPY:
1689 case R_TILEPRO_GLOB_DAT:
1690 case R_TILEPRO_JMP_SLOT:
1691 case R_TILEPRO_RELATIVE:
1692 case R_TILEPRO_BROFF_X1:
1693 case R_TILEPRO_JOFFLONG_X1:
1694 case R_TILEPRO_IMM8_X0:
1695 case R_TILEPRO_IMM8_Y0:
1696 case R_TILEPRO_IMM8_X1:
1697 case R_TILEPRO_IMM8_Y1:
1698 case R_TILEPRO_DEST_IMM8_X1:
1699 case R_TILEPRO_MT_IMM15_X1:
1700 case R_TILEPRO_MF_IMM15_X1:
1701 case R_TILEPRO_IMM16_X0:
1702 case R_TILEPRO_IMM16_X1:
1703 case R_TILEPRO_IMM16_X0_LO:
1704 case R_TILEPRO_IMM16_X1_LO:
1705 case R_TILEPRO_IMM16_X0_HI:
1706 case R_TILEPRO_IMM16_X1_HI:
1707 case R_TILEPRO_IMM16_X0_HA:
1708 case R_TILEPRO_IMM16_X1_HA:
1709 case R_TILEPRO_MMSTART_X0:
1710 case R_TILEPRO_MMEND_X0:
1711 case R_TILEPRO_MMSTART_X1:
1712 case R_TILEPRO_MMEND_X1:
1713 case R_TILEPRO_SHAMT_X0:
1714 case R_TILEPRO_SHAMT_X1:
1715 case R_TILEPRO_SHAMT_Y0:
1716 case R_TILEPRO_SHAMT_Y1:
1717 if (h != NULL)
1718 h->non_got_ref = 1;
1719
1720 r_tilepro_plt32:
1721 if (h != NULL && !bfd_link_pic (info))
1722 {
1723 /* We may need a .plt entry if the function this reloc
1724 refers to is in a shared lib. */
1725 h->plt.refcount += 1;
1726 }
1727
1728 /* If we are creating a shared library, and this is a reloc
1729 against a global symbol, or a non PC relative reloc
1730 against a local symbol, then we need to copy the reloc
1731 into the shared library. However, if we are linking with
1732 -Bsymbolic, we do not need to copy a reloc against a
1733 global symbol which is defined in an object we are
1734 including in the link (i.e., DEF_REGULAR is set). At
1735 this point we have not seen all the input files, so it is
1736 possible that DEF_REGULAR is not set now but will be set
1737 later (it is never cleared). In case of a weak definition,
1738 DEF_REGULAR may be cleared later by a strong definition in
1739 a shared library. We account for that possibility below by
1740 storing information in the relocs_copied field of the hash
1741 table entry. A similar situation occurs when creating
1742 shared libraries and symbol visibility changes render the
1743 symbol local.
1744
1745 If on the other hand, we are creating an executable, we
1746 may need to keep relocations for symbols satisfied by a
1747 dynamic library if we manage to avoid copy relocs for the
1748 symbol. */
1749 if ((bfd_link_pic (info)
1750 && (sec->flags & SEC_ALLOC) != 0
1751 && (! tilepro_elf_howto_table[r_type].pc_relative
1752 || (h != NULL
1753 && (! info->symbolic
1754 || h->root.type == bfd_link_hash_defweak
1755 || !h->def_regular))))
1756 || (!bfd_link_pic (info)
1757 && (sec->flags & SEC_ALLOC) != 0
1758 && h != NULL
1759 && (h->root.type == bfd_link_hash_defweak
1760 || !h->def_regular)))
1761 {
1762 struct tilepro_elf_dyn_relocs *p;
1763 struct tilepro_elf_dyn_relocs **head;
1764
1765 /* When creating a shared object, we must copy these
1766 relocs into the output file. We create a reloc
1767 section in dynobj and make room for the reloc. */
1768 if (sreloc == NULL)
1769 {
1770 sreloc = _bfd_elf_make_dynamic_reloc_section
1771 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1772
1773 if (sreloc == NULL)
1774 return FALSE;
1775 }
1776
1777 /* If this is a global symbol, we count the number of
1778 relocations we need for this symbol. */
1779 if (h != NULL)
1780 head =
1781 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1782 else
1783 {
1784 /* Track dynamic relocs needed for local syms too.
1785 We really need local syms available to do this
1786 easily. Oh well. */
1787
1788 asection *s;
1789 void *vpp;
1790 Elf_Internal_Sym *isym;
1791
1792 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1793 abfd, r_symndx);
1794 if (isym == NULL)
1795 return FALSE;
1796
1797 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1798 if (s == NULL)
1799 s = sec;
1800
1801 vpp = &elf_section_data (s)->local_dynrel;
1802 head = (struct tilepro_elf_dyn_relocs **) vpp;
1803 }
1804
1805 p = *head;
1806 if (p == NULL || p->sec != sec)
1807 {
1808 bfd_size_type amt = sizeof *p;
1809 p = ((struct tilepro_elf_dyn_relocs *)
1810 bfd_alloc (htab->elf.dynobj, amt));
1811 if (p == NULL)
1812 return FALSE;
1813 p->next = *head;
1814 *head = p;
1815 p->sec = sec;
1816 p->count = 0;
1817 p->pc_count = 0;
1818 }
1819
1820 p->count += 1;
1821 if (tilepro_elf_howto_table[r_type].pc_relative)
1822 p->pc_count += 1;
1823 }
1824
1825 break;
1826
1827 case R_TILEPRO_GNU_VTINHERIT:
1828 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1829 return FALSE;
1830 break;
1831
1832 case R_TILEPRO_GNU_VTENTRY:
1833 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1834 return FALSE;
1835 break;
1836
1837 default:
1838 break;
1839 }
1840 }
1841
1842 return TRUE;
1843 }
1844
1845 \f
1846 static asection *
1847 tilepro_elf_gc_mark_hook (asection *sec,
1848 struct bfd_link_info *info,
1849 Elf_Internal_Rela *rel,
1850 struct elf_link_hash_entry *h,
1851 Elf_Internal_Sym *sym)
1852 {
1853 if (h != NULL)
1854 {
1855 switch (ELF32_R_TYPE (rel->r_info))
1856 {
1857 case R_TILEPRO_GNU_VTINHERIT:
1858 case R_TILEPRO_GNU_VTENTRY:
1859 return NULL;
1860 }
1861 }
1862
1863 /* FIXME: The test here, in check_relocs and in relocate_section
1864 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1865 if (bfd_link_pic (info))
1866 {
1867 struct bfd_link_hash_entry *bh;
1868
1869 switch (ELF32_R_TYPE (rel->r_info))
1870 {
1871 case R_TILEPRO_TLS_GD_CALL:
1872 /* This reloc implicitly references __tls_get_addr. We know
1873 another reloc will reference the same symbol as the one
1874 on this reloc, so the real symbol and section will be
1875 gc marked when processing the other reloc. That lets
1876 us handle __tls_get_addr here. */
1877 bh = NULL;
1878 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
1879 "__tls_get_addr", 0,
1880 bfd_und_section_ptr,
1881 0, NULL, FALSE,
1882 FALSE, &bh))
1883 return NULL;
1884 h = (struct elf_link_hash_entry *) bh;
1885 BFD_ASSERT (h != NULL);
1886 h->mark = 1;
1887 if (h->u.weakdef != NULL)
1888 h->u.weakdef->mark = 1;
1889 sym = NULL;
1890 }
1891 }
1892
1893 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
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 struct tilepro_elf_link_hash_entry * eh;
1908 struct tilepro_elf_dyn_relocs *p;
1909 asection *s, *srel;
1910
1911 htab = tilepro_elf_hash_table (info);
1912 BFD_ASSERT (htab != NULL);
1913
1914 /* Make sure we know what is going on here. */
1915 BFD_ASSERT (htab->elf.dynobj != NULL
1916 && (h->needs_plt
1917 || h->u.weakdef != NULL
1918 || (h->def_dynamic
1919 && h->ref_regular
1920 && !h->def_regular)));
1921
1922 /* If this is a function, put it in the procedure linkage table. We
1923 will fill in the contents of the procedure linkage table later
1924 (although we could actually do it here). */
1925 if (h->type == STT_FUNC || h->needs_plt)
1926 {
1927 if (h->plt.refcount <= 0
1928 || SYMBOL_CALLS_LOCAL (info, h)
1929 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1930 && h->root.type == bfd_link_hash_undefweak))
1931 {
1932 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1933 reloc in an input file, but the symbol was never referred
1934 to by a dynamic object, or if all references were garbage
1935 collected. In such a case, we don't actually need to build
1936 a procedure linkage table, and we can just do a
1937 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1938 h->plt.offset = (bfd_vma) -1;
1939 h->needs_plt = 0;
1940 }
1941
1942 return TRUE;
1943 }
1944 else
1945 h->plt.offset = (bfd_vma) -1;
1946
1947 /* If this is a weak symbol, and there is a real definition, the
1948 processor independent code will have arranged for us to see the
1949 real definition first, and we can just use the same value. */
1950 if (h->u.weakdef != NULL)
1951 {
1952 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1953 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1954 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1955 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1956 return TRUE;
1957 }
1958
1959 /* This is a reference to a symbol defined by a dynamic object which
1960 is not a function. */
1961
1962 /* If we are creating a shared library, we must presume that the
1963 only references to the symbol are via the global offset table.
1964 For such cases we need not do anything here; the relocations will
1965 be handled correctly by relocate_section. */
1966 if (bfd_link_pic (info))
1967 return TRUE;
1968
1969 /* If there are no references to this symbol that do not use the
1970 GOT, we don't need to generate a copy reloc. */
1971 if (!h->non_got_ref)
1972 return TRUE;
1973
1974 /* If -z nocopyreloc was given, we won't generate them either. */
1975 if (info->nocopyreloc)
1976 {
1977 h->non_got_ref = 0;
1978 return TRUE;
1979 }
1980
1981 eh = (struct tilepro_elf_link_hash_entry *) h;
1982 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1983 {
1984 s = p->sec->output_section;
1985 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1986 break;
1987 }
1988
1989 /* If we didn't find any dynamic relocs in read-only sections, then
1990 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1991 if (p == NULL)
1992 {
1993 h->non_got_ref = 0;
1994 return TRUE;
1995 }
1996
1997 /* We must allocate the symbol in our .dynbss section, which will
1998 become part of the .bss section of the executable. There will be
1999 an entry for this symbol in the .dynsym section. The dynamic
2000 object will contain position independent code, so all references
2001 from the dynamic object to this symbol will go through the global
2002 offset table. The dynamic linker will use the .dynsym entry to
2003 determine the address it must put in the global offset table, so
2004 both the dynamic object and the regular object will refer to the
2005 same memory location for the variable. */
2006
2007 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
2008 to copy the initial value out of the dynamic object and into the
2009 runtime process image. We need to remember the offset into the
2010 .rel.bss section we are going to use. */
2011 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2012 {
2013 s = htab->elf.sdynrelro;
2014 srel = htab->elf.sreldynrelro;
2015 }
2016 else
2017 {
2018 s = htab->elf.sdynbss;
2019 srel = htab->elf.srelbss;
2020 }
2021 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2022 {
2023 srel->size += TILEPRO_ELF_RELA_BYTES;
2024 h->needs_copy = 1;
2025 }
2026
2027 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2028 }
2029
2030 /* Allocate space in .plt, .got and associated reloc sections for
2031 dynamic relocs. */
2032
2033 static bfd_boolean
2034 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2035 {
2036 struct bfd_link_info *info;
2037 struct tilepro_elf_link_hash_table *htab;
2038 struct tilepro_elf_link_hash_entry *eh;
2039 struct tilepro_elf_dyn_relocs *p;
2040
2041 if (h->root.type == bfd_link_hash_indirect)
2042 return TRUE;
2043
2044 info = (struct bfd_link_info *) inf;
2045 htab = tilepro_elf_hash_table (info);
2046 BFD_ASSERT (htab != NULL);
2047
2048 if (htab->elf.dynamic_sections_created
2049 && h->plt.refcount > 0)
2050 {
2051 /* Make sure this symbol is output as a dynamic symbol.
2052 Undefined weak syms won't yet be marked as dynamic. */
2053 if (h->dynindx == -1
2054 && !h->forced_local)
2055 {
2056 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2057 return FALSE;
2058 }
2059
2060 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2061 {
2062 asection *s = htab->elf.splt;
2063
2064 /* Allocate room for the header. */
2065 if (s->size == 0)
2066 {
2067 s->size = PLT_ENTRY_SIZE;
2068 }
2069
2070 h->plt.offset = s->size;
2071
2072 /* If this symbol is not defined in a regular file, and we are
2073 not generating a shared library, then set the symbol to this
2074 location in the .plt. This is required to make function
2075 pointers compare as equal between the normal executable and
2076 the shared library. */
2077 if (! bfd_link_pic (info)
2078 && !h->def_regular)
2079 {
2080 h->root.u.def.section = s;
2081 h->root.u.def.value = h->plt.offset;
2082 }
2083
2084 /* Make room for this entry. */
2085 s->size += PLT_ENTRY_SIZE;
2086
2087 /* We also need to make an entry in the .got.plt section. */
2088 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2089
2090 /* We also need to make an entry in the .rela.plt section. */
2091 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2092 }
2093 else
2094 {
2095 h->plt.offset = (bfd_vma) -1;
2096 h->needs_plt = 0;
2097 }
2098 }
2099 else
2100 {
2101 h->plt.offset = (bfd_vma) -1;
2102 h->needs_plt = 0;
2103 }
2104
2105 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2106 requiring no TLS entry. */
2107 if (h->got.refcount > 0
2108 && bfd_link_executable (info)
2109 && h->dynindx == -1
2110 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2111 h->got.offset = (bfd_vma) -1;
2112 else if (h->got.refcount > 0)
2113 {
2114 asection *s;
2115 bfd_boolean dyn;
2116 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2117
2118 /* Make sure this symbol is output as a dynamic symbol.
2119 Undefined weak syms won't yet be marked as dynamic. */
2120 if (h->dynindx == -1
2121 && !h->forced_local)
2122 {
2123 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2124 return FALSE;
2125 }
2126
2127 s = htab->elf.sgot;
2128 h->got.offset = s->size;
2129 s->size += TILEPRO_BYTES_PER_WORD;
2130 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2131 if (tls_type == GOT_TLS_GD)
2132 s->size += TILEPRO_BYTES_PER_WORD;
2133 dyn = htab->elf.dynamic_sections_created;
2134 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2135 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2136 global. */
2137 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2138 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2139 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2140 bfd_link_pic (info),
2141 h))
2142 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2143 }
2144 else
2145 h->got.offset = (bfd_vma) -1;
2146
2147 eh = (struct tilepro_elf_link_hash_entry *) h;
2148 if (eh->dyn_relocs == NULL)
2149 return TRUE;
2150
2151 /* In the shared -Bsymbolic case, discard space allocated for
2152 dynamic pc-relative relocs against symbols which turn out to be
2153 defined in regular objects. For the normal shared case, discard
2154 space for pc-relative relocs that have become local due to symbol
2155 visibility changes. */
2156
2157 if (bfd_link_pic (info))
2158 {
2159 if (SYMBOL_CALLS_LOCAL (info, h))
2160 {
2161 struct tilepro_elf_dyn_relocs **pp;
2162
2163 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2164 {
2165 p->count -= p->pc_count;
2166 p->pc_count = 0;
2167 if (p->count == 0)
2168 *pp = p->next;
2169 else
2170 pp = &p->next;
2171 }
2172 }
2173
2174 /* Also discard relocs on undefined weak syms with non-default
2175 visibility. */
2176 if (eh->dyn_relocs != NULL
2177 && h->root.type == bfd_link_hash_undefweak)
2178 {
2179 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2180 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2181 eh->dyn_relocs = NULL;
2182
2183 /* Make sure undefined weak symbols are output as a dynamic
2184 symbol in PIEs. */
2185 else if (h->dynindx == -1
2186 && !h->forced_local)
2187 {
2188 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2189 return FALSE;
2190 }
2191 }
2192 }
2193 else
2194 {
2195 /* For the non-shared case, discard space for relocs against
2196 symbols which turn out to need copy relocs or are not
2197 dynamic. */
2198
2199 if (!h->non_got_ref
2200 && ((h->def_dynamic
2201 && !h->def_regular)
2202 || (htab->elf.dynamic_sections_created
2203 && (h->root.type == bfd_link_hash_undefweak
2204 || h->root.type == bfd_link_hash_undefined))))
2205 {
2206 /* Make sure this symbol is output as a dynamic symbol.
2207 Undefined weak syms won't yet be marked as dynamic. */
2208 if (h->dynindx == -1
2209 && !h->forced_local)
2210 {
2211 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2212 return FALSE;
2213 }
2214
2215 /* If that succeeded, we know we'll be keeping all the
2216 relocs. */
2217 if (h->dynindx != -1)
2218 goto keep;
2219 }
2220
2221 eh->dyn_relocs = NULL;
2222
2223 keep: ;
2224 }
2225
2226 /* Finally, allocate space. */
2227 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2228 {
2229 asection *sreloc = elf_section_data (p->sec)->sreloc;
2230 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2231 }
2232
2233 return TRUE;
2234 }
2235
2236 /* Find any dynamic relocs that apply to read-only sections. */
2237
2238 static bfd_boolean
2239 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2240 {
2241 struct tilepro_elf_link_hash_entry *eh;
2242 struct tilepro_elf_dyn_relocs *p;
2243
2244 eh = (struct tilepro_elf_link_hash_entry *) h;
2245 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2246 {
2247 asection *s = p->sec->output_section;
2248
2249 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2250 {
2251 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2252
2253 info->flags |= DF_TEXTREL;
2254
2255 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2256 p->sec->owner, p->sec);
2257
2258 /* Not an error, just cut short the traversal. */
2259 return FALSE;
2260 }
2261 }
2262 return TRUE;
2263 }
2264
2265 /* Return true if the dynamic symbol for a given section should be
2266 omitted when creating a shared library. */
2267
2268 static bfd_boolean
2269 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2270 struct bfd_link_info *info,
2271 asection *p)
2272 {
2273 /* We keep the .got section symbol so that explicit relocations
2274 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2275 can be turned into relocations against the .got symbol. */
2276 if (strcmp (p->name, ".got") == 0)
2277 return FALSE;
2278
2279 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2280 }
2281
2282 /* Set the sizes of the dynamic sections. */
2283
2284 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2285
2286 static bfd_boolean
2287 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2288 struct bfd_link_info *info)
2289 {
2290 (void)output_bfd;
2291
2292 struct tilepro_elf_link_hash_table *htab;
2293 bfd *dynobj;
2294 asection *s;
2295 bfd *ibfd;
2296
2297 htab = tilepro_elf_hash_table (info);
2298 BFD_ASSERT (htab != NULL);
2299 dynobj = htab->elf.dynobj;
2300 BFD_ASSERT (dynobj != NULL);
2301
2302 if (elf_hash_table (info)->dynamic_sections_created)
2303 {
2304 /* Set the contents of the .interp section to the interpreter. */
2305 if (bfd_link_executable (info) && !info->nointerp)
2306 {
2307 s = bfd_get_linker_section (dynobj, ".interp");
2308 BFD_ASSERT (s != NULL);
2309 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2310 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2311 }
2312 }
2313
2314 /* Set up .got offsets for local syms, and space for local dynamic
2315 relocs. */
2316 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2317 {
2318 bfd_signed_vma *local_got;
2319 bfd_signed_vma *end_local_got;
2320 char *local_tls_type;
2321 bfd_size_type locsymcount;
2322 Elf_Internal_Shdr *symtab_hdr;
2323 asection *srel;
2324
2325 if (! is_tilepro_elf (ibfd))
2326 continue;
2327
2328 for (s = ibfd->sections; s != NULL; s = s->next)
2329 {
2330 struct tilepro_elf_dyn_relocs *p;
2331
2332 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2333 {
2334 if (!bfd_is_abs_section (p->sec)
2335 && bfd_is_abs_section (p->sec->output_section))
2336 {
2337 /* Input section has been discarded, either because
2338 it is a copy of a linkonce section or due to
2339 linker script /DISCARD/, so we'll be discarding
2340 the relocs too. */
2341 }
2342 else if (p->count != 0)
2343 {
2344 srel = elf_section_data (p->sec)->sreloc;
2345 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2346 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2347 {
2348 info->flags |= DF_TEXTREL;
2349
2350 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2351 p->sec->owner, p->sec);
2352 }
2353 }
2354 }
2355 }
2356
2357 local_got = elf_local_got_refcounts (ibfd);
2358 if (!local_got)
2359 continue;
2360
2361 symtab_hdr = &elf_symtab_hdr (ibfd);
2362 locsymcount = symtab_hdr->sh_info;
2363 end_local_got = local_got + locsymcount;
2364 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2365 s = htab->elf.sgot;
2366 srel = htab->elf.srelgot;
2367 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2368 {
2369 if (*local_got > 0)
2370 {
2371 *local_got = s->size;
2372 s->size += TILEPRO_BYTES_PER_WORD;
2373 if (*local_tls_type == GOT_TLS_GD)
2374 s->size += TILEPRO_BYTES_PER_WORD;
2375 if (bfd_link_pic (info)
2376 || *local_tls_type == GOT_TLS_GD
2377 || *local_tls_type == GOT_TLS_IE)
2378 srel->size += TILEPRO_ELF_RELA_BYTES;
2379 }
2380 else
2381 *local_got = (bfd_vma) -1;
2382 }
2383 }
2384
2385 /* Allocate global sym .plt and .got entries, and space for global
2386 sym dynamic relocs. */
2387 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2388
2389 if (elf_hash_table (info)->dynamic_sections_created)
2390 {
2391 /* If the .got section is more than 0x8000 bytes, we add
2392 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2393 bit relocations have a greater chance of working. */
2394 if (htab->elf.sgot->size >= 0x8000
2395 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2396 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2397 }
2398
2399 if (htab->elf.sgotplt)
2400 {
2401 struct elf_link_hash_entry *got;
2402 got = elf_link_hash_lookup (elf_hash_table (info),
2403 "_GLOBAL_OFFSET_TABLE_",
2404 FALSE, FALSE, FALSE);
2405
2406 /* Don't allocate .got.plt section if there are no GOT nor PLT
2407 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2408 if ((got == NULL
2409 || !got->ref_regular_nonweak)
2410 && (htab->elf.sgotplt->size
2411 == GOTPLT_HEADER_SIZE)
2412 && (htab->elf.splt == NULL
2413 || htab->elf.splt->size == 0)
2414 && (htab->elf.sgot == NULL
2415 || (htab->elf.sgot->size
2416 == get_elf_backend_data (output_bfd)->got_header_size)))
2417 htab->elf.sgotplt->size = 0;
2418 }
2419
2420 /* The check_relocs and adjust_dynamic_symbol entry points have
2421 determined the sizes of the various dynamic sections. Allocate
2422 memory for them. */
2423 for (s = dynobj->sections; s != NULL; s = s->next)
2424 {
2425 if ((s->flags & SEC_LINKER_CREATED) == 0)
2426 continue;
2427
2428 if (s == htab->elf.splt
2429 || s == htab->elf.sgot
2430 || s == htab->elf.sgotplt
2431 || s == htab->elf.sdynbss
2432 || s == htab->elf.sdynrelro)
2433 {
2434 /* Strip this section if we don't need it; see the
2435 comment below. */
2436 }
2437 else if (strncmp (s->name, ".rela", 5) == 0)
2438 {
2439 if (s->size != 0)
2440 {
2441 /* We use the reloc_count field as a counter if we need
2442 to copy relocs into the output file. */
2443 s->reloc_count = 0;
2444 }
2445 }
2446 else
2447 {
2448 /* It's not one of our sections. */
2449 continue;
2450 }
2451
2452 if (s->size == 0)
2453 {
2454 /* If we don't need this section, strip it from the
2455 output file. This is mostly to handle .rela.bss and
2456 .rela.plt. We must create both sections in
2457 create_dynamic_sections, because they must be created
2458 before the linker maps input sections to output
2459 sections. The linker does that before
2460 adjust_dynamic_symbol is called, and it is that
2461 function which decides whether anything needs to go
2462 into these sections. */
2463 s->flags |= SEC_EXCLUDE;
2464 continue;
2465 }
2466
2467 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2468 continue;
2469
2470 /* Allocate memory for the section contents. Zero the memory
2471 for the benefit of .rela.plt, which has 4 unused entries
2472 at the beginning, and we don't want garbage. */
2473 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2474 if (s->contents == NULL)
2475 return FALSE;
2476 }
2477
2478 if (elf_hash_table (info)->dynamic_sections_created)
2479 {
2480 /* Add some entries to the .dynamic section. We fill in the
2481 values later, in tilepro_elf_finish_dynamic_sections, but we
2482 must add the entries now so that we get the correct size for
2483 the .dynamic section. The DT_DEBUG entry is filled in by the
2484 dynamic linker and used by the debugger. */
2485 #define add_dynamic_entry(TAG, VAL) \
2486 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2487
2488 if (bfd_link_executable (info))
2489 {
2490 if (!add_dynamic_entry (DT_DEBUG, 0))
2491 return FALSE;
2492 }
2493
2494 if (htab->elf.srelplt->size != 0)
2495 {
2496 if (!add_dynamic_entry (DT_PLTGOT, 0)
2497 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2498 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2499 || !add_dynamic_entry (DT_JMPREL, 0))
2500 return FALSE;
2501 }
2502
2503 if (!add_dynamic_entry (DT_RELA, 0)
2504 || !add_dynamic_entry (DT_RELASZ, 0)
2505 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2506 return FALSE;
2507
2508 /* If any dynamic relocs apply to a read-only section,
2509 then we need a DT_TEXTREL entry. */
2510 if ((info->flags & DF_TEXTREL) == 0)
2511 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2512
2513 if (info->flags & DF_TEXTREL)
2514 {
2515 if (!add_dynamic_entry (DT_TEXTREL, 0))
2516 return FALSE;
2517 }
2518 }
2519 #undef add_dynamic_entry
2520
2521 return TRUE;
2522 }
2523 \f
2524 /* Return the base VMA address which should be subtracted from real addresses
2525 when resolving @dtpoff relocation.
2526 This is PT_TLS segment p_vaddr. */
2527
2528 static bfd_vma
2529 dtpoff_base (struct bfd_link_info *info)
2530 {
2531 /* If tls_sec is NULL, we should have signalled an error already. */
2532 if (elf_hash_table (info)->tls_sec == NULL)
2533 return 0;
2534 return elf_hash_table (info)->tls_sec->vma;
2535 }
2536
2537 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2538
2539 static bfd_vma
2540 tpoff (struct bfd_link_info *info, bfd_vma address)
2541 {
2542 struct elf_link_hash_table *htab = elf_hash_table (info);
2543
2544 /* If tls_sec is NULL, we should have signalled an error already. */
2545 if (htab->tls_sec == NULL)
2546 return 0;
2547
2548 return (address - htab->tls_sec->vma);
2549 }
2550
2551 /* Replace the MASK bits in ADDR with those in INSN, for the next
2552 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2553
2554 static void
2555 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2556 const bfd_byte *insn)
2557 {
2558 int i;
2559 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2560 {
2561 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2562 }
2563 }
2564
2565 /* Mask to extract the bits corresponding to an instruction in a
2566 specific pipe of a bundle. */
2567 static const bfd_byte insn_mask_X1[] = {
2568 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2569 };
2570
2571 /* Mask to extract the bits corresponding to an instruction in a
2572 specific pipe of a bundle, minus the destination operand and the
2573 first source operand. */
2574 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2575 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2576 };
2577
2578 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2579 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2580 };
2581
2582 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2583 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2584 };
2585
2586 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2587 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2588 };
2589
2590 /* Mask to extract the first source operand of an instruction. */
2591 static const bfd_byte srca_mask_X0[] = {
2592 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2593 };
2594
2595 static const bfd_byte srca_mask_X1[] = {
2596 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2597 };
2598
2599 /* Various instructions synthesized to support tls references. */
2600
2601 /* move r0, r0 in the X1 pipe, used for tls le. */
2602 static const bfd_byte insn_tls_le_move_X1[] = {
2603 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2604 };
2605
2606 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2607 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2608 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2609 };
2610
2611 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2612 static const bfd_byte insn_tls_ie_lw_X1[] = {
2613 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2614 };
2615
2616 /* add r0, r0, tp in various pipes, used for tls ie. */
2617 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2618 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2619 };
2620 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2621 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2622 };
2623
2624 /* move r0, r0 in various pipes, used for tls gd. */
2625 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2626 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2627 };
2628 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2629 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2630 };
2631
2632 /* Relocate an TILEPRO ELF section.
2633
2634 The RELOCATE_SECTION function is called by the new ELF backend linker
2635 to handle the relocations for a section.
2636
2637 The relocs are always passed as Rela structures.
2638
2639 This function is responsible for adjusting the section contents as
2640 necessary, and (if generating a relocatable output file) adjusting
2641 the reloc addend as necessary.
2642
2643 This function does not have to worry about setting the reloc
2644 address or the reloc symbol index.
2645
2646 LOCAL_SYMS is a pointer to the swapped in local symbols.
2647
2648 LOCAL_SECTIONS is an array giving the section in the input file
2649 corresponding to the st_shndx field of each local symbol.
2650
2651 The global hash table entry for the global symbols can be found
2652 via elf_sym_hashes (input_bfd).
2653
2654 When generating relocatable output, this function must handle
2655 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2656 going to be the section symbol corresponding to the output
2657 section, which means that the addend must be adjusted
2658 accordingly. */
2659
2660 static bfd_boolean
2661 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2662 bfd *input_bfd, asection *input_section,
2663 bfd_byte *contents, Elf_Internal_Rela *relocs,
2664 Elf_Internal_Sym *local_syms,
2665 asection **local_sections)
2666 {
2667 struct tilepro_elf_link_hash_table *htab;
2668 Elf_Internal_Shdr *symtab_hdr;
2669 struct elf_link_hash_entry **sym_hashes;
2670 bfd_vma *local_got_offsets;
2671 bfd_vma got_base;
2672 asection *sreloc;
2673 Elf_Internal_Rela *rel;
2674 Elf_Internal_Rela *relend;
2675 int num_relocs;
2676
2677 htab = tilepro_elf_hash_table (info);
2678 BFD_ASSERT (htab != NULL);
2679 symtab_hdr = &elf_symtab_hdr (input_bfd);
2680 sym_hashes = elf_sym_hashes (input_bfd);
2681 local_got_offsets = elf_local_got_offsets (input_bfd);
2682
2683 if (elf_hash_table (info)->hgot == NULL)
2684 got_base = 0;
2685 else
2686 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2687
2688 sreloc = elf_section_data (input_section)->sreloc;
2689
2690 rel = relocs;
2691 num_relocs = input_section->reloc_count;
2692 relend = relocs + num_relocs;
2693 for (; rel < relend; rel++)
2694 {
2695 int r_type, tls_type;
2696 bfd_boolean is_tls_iele, is_tls_le;
2697 reloc_howto_type *howto;
2698 unsigned long r_symndx;
2699 struct elf_link_hash_entry *h;
2700 Elf_Internal_Sym *sym;
2701 tilepro_create_func create_func;
2702 asection *sec;
2703 bfd_vma relocation;
2704 bfd_reloc_status_type r;
2705 const char *name;
2706 bfd_vma off;
2707 bfd_boolean is_plt = FALSE;
2708 bfd_boolean resolved_to_zero;
2709 bfd_boolean unresolved_reloc;
2710
2711 r_type = ELF32_R_TYPE (rel->r_info);
2712 if (r_type == R_TILEPRO_GNU_VTINHERIT
2713 || r_type == R_TILEPRO_GNU_VTENTRY)
2714 continue;
2715
2716 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2717 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2718
2719 howto = tilepro_elf_howto_table + r_type;
2720
2721 /* This is a final link. */
2722 r_symndx = ELF32_R_SYM (rel->r_info);
2723 h = NULL;
2724 sym = NULL;
2725 sec = NULL;
2726 unresolved_reloc = FALSE;
2727 if (r_symndx < symtab_hdr->sh_info)
2728 {
2729 sym = local_syms + r_symndx;
2730 sec = local_sections[r_symndx];
2731 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2732 }
2733 else
2734 {
2735 bfd_boolean warned ATTRIBUTE_UNUSED;
2736 bfd_boolean ignored ATTRIBUTE_UNUSED;
2737
2738 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2739 r_symndx, symtab_hdr, sym_hashes,
2740 h, sec, relocation,
2741 unresolved_reloc, warned, ignored);
2742 if (warned)
2743 {
2744 /* To avoid generating warning messages about truncated
2745 relocations, set the relocation's address to be the same as
2746 the start of this section. */
2747 if (input_section->output_section != NULL)
2748 relocation = input_section->output_section->vma;
2749 else
2750 relocation = 0;
2751 }
2752 }
2753
2754 if (sec != NULL && discarded_section (sec))
2755 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2756 rel, 1, relend, howto, 0, contents);
2757
2758 if (bfd_link_relocatable (info))
2759 continue;
2760
2761 if (h != NULL)
2762 name = h->root.root.string;
2763 else
2764 {
2765 name = (bfd_elf_string_from_elf_section
2766 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2767 if (name == NULL || *name == '\0')
2768 name = bfd_section_name (input_bfd, sec);
2769 }
2770
2771 switch (r_type)
2772 {
2773 case R_TILEPRO_TLS_GD_CALL:
2774 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2775 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2776 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2777 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2778 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2779 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2780 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2781 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2782 tls_type = GOT_UNKNOWN;
2783 if (h == NULL && local_got_offsets)
2784 tls_type =
2785 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2786 else if (h != NULL)
2787 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2788
2789 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2790 is_tls_le = is_tls_iele && (bfd_link_executable (info)
2791 && (h == NULL || h->dynindx == -1));
2792
2793 if (r_type == R_TILEPRO_TLS_GD_CALL)
2794 {
2795 if (is_tls_le)
2796 {
2797 /* GD -> LE */
2798 tilepro_replace_insn (contents + rel->r_offset,
2799 insn_mask_X1, insn_tls_le_move_X1);
2800 continue;
2801 }
2802 else if (is_tls_iele)
2803 {
2804 /* GD -> IE */
2805 tilepro_replace_insn (contents + rel->r_offset,
2806 insn_mask_X1, insn_tls_ie_lw_X1);
2807 continue;
2808 }
2809
2810 /* GD -> GD */
2811 h = (struct elf_link_hash_entry *)
2812 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2813 FALSE, TRUE);
2814 BFD_ASSERT (h != NULL);
2815 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2816 howto = tilepro_elf_howto_table + r_type;
2817 }
2818 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2819 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2820 {
2821 if (is_tls_le)
2822 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2823 insn_tls_le_move_zero_X0X1);
2824 }
2825 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2826 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2827 {
2828 if (is_tls_le)
2829 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2830 insn_tls_le_move_zero_X0X1);
2831 }
2832 else
2833 {
2834 const bfd_byte *mask = NULL;
2835 const bfd_byte *add_insn = NULL;
2836
2837 switch (r_type)
2838 {
2839 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2840 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2841 : insn_tls_gd_add_X0X1;
2842 mask = insn_mask_X0_no_dest_no_srca;
2843 break;
2844 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2845 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2846 : insn_tls_gd_add_X0X1;
2847 mask = insn_mask_X1_no_dest_no_srca;
2848 break;
2849 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2850 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2851 : insn_tls_gd_add_Y0Y1;
2852 mask = insn_mask_Y0_no_dest_no_srca;
2853 break;
2854 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2855 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2856 : insn_tls_gd_add_Y0Y1;
2857 mask = insn_mask_Y1_no_dest_no_srca;
2858 break;
2859 }
2860
2861 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2862
2863 continue;
2864 }
2865 break;
2866 case R_TILEPRO_TLS_IE_LOAD:
2867 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
2868 /* IE -> LE */
2869 tilepro_replace_insn (contents + rel->r_offset,
2870 insn_mask_X1_no_dest_no_srca,
2871 insn_tls_le_move_X1);
2872 else
2873 /* IE -> IE */
2874 tilepro_replace_insn (contents + rel->r_offset,
2875 insn_mask_X1_no_dest_no_srca,
2876 insn_tls_ie_lw_X1);
2877 continue;
2878 break;
2879 default:
2880 break;
2881 }
2882
2883 resolved_to_zero = (h != NULL
2884 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2885
2886 switch (r_type)
2887 {
2888 case R_TILEPRO_IMM16_X0_GOT:
2889 case R_TILEPRO_IMM16_X1_GOT:
2890 case R_TILEPRO_IMM16_X0_GOT_LO:
2891 case R_TILEPRO_IMM16_X1_GOT_LO:
2892 case R_TILEPRO_IMM16_X0_GOT_HI:
2893 case R_TILEPRO_IMM16_X1_GOT_HI:
2894 case R_TILEPRO_IMM16_X0_GOT_HA:
2895 case R_TILEPRO_IMM16_X1_GOT_HA:
2896 /* Relocation is to the entry for this symbol in the global
2897 offset table. */
2898 if (htab->elf.sgot == NULL)
2899 abort ();
2900
2901 if (h != NULL)
2902 {
2903 bfd_boolean dyn;
2904
2905 off = h->got.offset;
2906 BFD_ASSERT (off != (bfd_vma) -1);
2907 dyn = elf_hash_table (info)->dynamic_sections_created;
2908
2909 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2910 bfd_link_pic (info),
2911 h)
2912 || (bfd_link_pic (info)
2913 && SYMBOL_REFERENCES_LOCAL (info, h)))
2914 {
2915 /* This is actually a static link, or it is a
2916 -Bsymbolic link and the symbol is defined
2917 locally, or the symbol was forced to be local
2918 because of a version file. We must initialize
2919 this entry in the global offset table. Since the
2920 offset must always be a multiple
2921 of 4 for 32-bit, we use the least significant bit
2922 to record whether we have initialized it already.
2923
2924 When doing a dynamic link, we create a .rela.got
2925 relocation entry to initialize the value. This
2926 is done in the finish_dynamic_symbol routine. */
2927 if ((off & 1) != 0)
2928 off &= ~1;
2929 else
2930 {
2931 bfd_put_32 (output_bfd, relocation,
2932 htab->elf.sgot->contents + off);
2933 h->got.offset |= 1;
2934 }
2935 }
2936 else
2937 unresolved_reloc = FALSE;
2938 }
2939 else
2940 {
2941 BFD_ASSERT (local_got_offsets != NULL
2942 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2943
2944 off = local_got_offsets[r_symndx];
2945
2946 /* The offset must always be a multiple of 4 on 32-bit.
2947 We use the least significant bit to record
2948 whether we have already processed this entry. */
2949 if ((off & 1) != 0)
2950 off &= ~1;
2951 else
2952 {
2953 if (bfd_link_pic (info))
2954 {
2955 asection *s;
2956 Elf_Internal_Rela outrel;
2957
2958 /* We need to generate a R_TILEPRO_RELATIVE reloc
2959 for the dynamic linker. */
2960 s = htab->elf.srelgot;
2961 BFD_ASSERT (s != NULL);
2962
2963 outrel.r_offset = (htab->elf.sgot->output_section->vma
2964 + htab->elf.sgot->output_offset
2965 + off);
2966 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2967 outrel.r_addend = relocation;
2968 relocation = 0;
2969 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2970 }
2971
2972 bfd_put_32 (output_bfd, relocation,
2973 htab->elf.sgot->contents + off);
2974 local_got_offsets[r_symndx] |= 1;
2975 }
2976 }
2977 relocation = off - got_base;
2978 break;
2979
2980 case R_TILEPRO_JOFFLONG_X1_PLT:
2981 /* Relocation is to the entry for this symbol in the
2982 procedure linkage table. */
2983 BFD_ASSERT (h != NULL);
2984
2985 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2986 {
2987 /* We didn't make a PLT entry for this symbol. This
2988 happens when statically linking PIC code, or when
2989 using -Bsymbolic. */
2990 break;
2991 }
2992
2993 relocation = (htab->elf.splt->output_section->vma
2994 + htab->elf.splt->output_offset
2995 + h->plt.offset);
2996 unresolved_reloc = FALSE;
2997 break;
2998
2999 case R_TILEPRO_32_PCREL:
3000 case R_TILEPRO_16_PCREL:
3001 case R_TILEPRO_8_PCREL:
3002 case R_TILEPRO_IMM16_X0_PCREL:
3003 case R_TILEPRO_IMM16_X1_PCREL:
3004 case R_TILEPRO_IMM16_X0_LO_PCREL:
3005 case R_TILEPRO_IMM16_X1_LO_PCREL:
3006 case R_TILEPRO_IMM16_X0_HI_PCREL:
3007 case R_TILEPRO_IMM16_X1_HI_PCREL:
3008 case R_TILEPRO_IMM16_X0_HA_PCREL:
3009 case R_TILEPRO_IMM16_X1_HA_PCREL:
3010 if (h != NULL
3011 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3012 break;
3013 /* Fall through. */
3014 case R_TILEPRO_32:
3015 case R_TILEPRO_16:
3016 case R_TILEPRO_8:
3017 case R_TILEPRO_LO16:
3018 case R_TILEPRO_HI16:
3019 case R_TILEPRO_HA16:
3020 case R_TILEPRO_COPY:
3021 case R_TILEPRO_GLOB_DAT:
3022 case R_TILEPRO_JMP_SLOT:
3023 case R_TILEPRO_RELATIVE:
3024 case R_TILEPRO_BROFF_X1:
3025 case R_TILEPRO_JOFFLONG_X1:
3026 case R_TILEPRO_IMM8_X0:
3027 case R_TILEPRO_IMM8_Y0:
3028 case R_TILEPRO_IMM8_X1:
3029 case R_TILEPRO_IMM8_Y1:
3030 case R_TILEPRO_DEST_IMM8_X1:
3031 case R_TILEPRO_MT_IMM15_X1:
3032 case R_TILEPRO_MF_IMM15_X1:
3033 case R_TILEPRO_IMM16_X0:
3034 case R_TILEPRO_IMM16_X1:
3035 case R_TILEPRO_IMM16_X0_LO:
3036 case R_TILEPRO_IMM16_X1_LO:
3037 case R_TILEPRO_IMM16_X0_HI:
3038 case R_TILEPRO_IMM16_X1_HI:
3039 case R_TILEPRO_IMM16_X0_HA:
3040 case R_TILEPRO_IMM16_X1_HA:
3041 case R_TILEPRO_MMSTART_X0:
3042 case R_TILEPRO_MMEND_X0:
3043 case R_TILEPRO_MMSTART_X1:
3044 case R_TILEPRO_MMEND_X1:
3045 case R_TILEPRO_SHAMT_X0:
3046 case R_TILEPRO_SHAMT_X1:
3047 case R_TILEPRO_SHAMT_Y0:
3048 case R_TILEPRO_SHAMT_Y1:
3049 if ((input_section->flags & SEC_ALLOC) == 0)
3050 break;
3051
3052 if ((bfd_link_pic (info)
3053 && (h == NULL
3054 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3055 && !resolved_to_zero)
3056 || h->root.type != bfd_link_hash_undefweak)
3057 && (! howto->pc_relative
3058 || !SYMBOL_CALLS_LOCAL (info, h)))
3059 || (!bfd_link_pic (info)
3060 && h != NULL
3061 && h->dynindx != -1
3062 && !h->non_got_ref
3063 && ((h->def_dynamic
3064 && !h->def_regular)
3065 || h->root.type == bfd_link_hash_undefweak
3066 || h->root.type == bfd_link_hash_undefined)))
3067 {
3068 Elf_Internal_Rela outrel;
3069 bfd_boolean skip, relocate = FALSE;
3070
3071 /* When generating a shared object, these relocations
3072 are copied into the output file to be resolved at run
3073 time. */
3074
3075 BFD_ASSERT (sreloc != NULL);
3076
3077 skip = FALSE;
3078
3079 outrel.r_offset =
3080 _bfd_elf_section_offset (output_bfd, info, input_section,
3081 rel->r_offset);
3082 if (outrel.r_offset == (bfd_vma) -1)
3083 skip = TRUE;
3084 else if (outrel.r_offset == (bfd_vma) -2)
3085 skip = TRUE, relocate = TRUE;
3086 outrel.r_offset += (input_section->output_section->vma
3087 + input_section->output_offset);
3088
3089 switch (r_type)
3090 {
3091 case R_TILEPRO_32_PCREL:
3092 case R_TILEPRO_16_PCREL:
3093 case R_TILEPRO_8_PCREL:
3094 /* If the symbol is not dynamic, we should not keep
3095 a dynamic relocation. But an .rela.* slot has been
3096 allocated for it, output R_TILEPRO_NONE.
3097 FIXME: Add code tracking needed dynamic relocs as
3098 e.g. i386 has. */
3099 if (h->dynindx == -1)
3100 skip = TRUE, relocate = TRUE;
3101 break;
3102 }
3103
3104 if (skip)
3105 memset (&outrel, 0, sizeof outrel);
3106 /* h->dynindx may be -1 if the symbol was marked to
3107 become local. */
3108 else if (h != NULL &&
3109 h->dynindx != -1
3110 && (! is_plt
3111 || !bfd_link_pic (info)
3112 || !SYMBOLIC_BIND (info, h)
3113 || !h->def_regular))
3114 {
3115 BFD_ASSERT (h->dynindx != -1);
3116 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3117 outrel.r_addend = rel->r_addend;
3118 }
3119 else
3120 {
3121 if (r_type == R_TILEPRO_32)
3122 {
3123 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3124 outrel.r_addend = relocation + rel->r_addend;
3125 }
3126 else
3127 {
3128 long indx;
3129
3130 outrel.r_addend = relocation + rel->r_addend;
3131
3132 if (is_plt)
3133 sec = htab->elf.splt;
3134
3135 if (bfd_is_abs_section (sec))
3136 indx = 0;
3137 else if (sec == NULL || sec->owner == NULL)
3138 {
3139 bfd_set_error (bfd_error_bad_value);
3140 return FALSE;
3141 }
3142 else
3143 {
3144 asection *osec;
3145
3146 /* We are turning this relocation into one
3147 against a section symbol. It would be
3148 proper to subtract the symbol's value,
3149 osec->vma, from the emitted reloc addend,
3150 but ld.so expects buggy relocs. */
3151 osec = sec->output_section;
3152 indx = elf_section_data (osec)->dynindx;
3153
3154 if (indx == 0)
3155 {
3156 osec = htab->elf.text_index_section;
3157 indx = elf_section_data (osec)->dynindx;
3158 }
3159
3160 /* FIXME: we really should be able to link non-pic
3161 shared libraries. */
3162 if (indx == 0)
3163 {
3164 BFD_FAIL ();
3165 _bfd_error_handler
3166 (_("%B: probably compiled without -fPIC?"),
3167 input_bfd);
3168 bfd_set_error (bfd_error_bad_value);
3169 return FALSE;
3170 }
3171 }
3172
3173 outrel.r_info = ELF32_R_INFO (indx, r_type);
3174 }
3175 }
3176
3177 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3178
3179 /* This reloc will be computed at runtime, so there's no
3180 need to do anything now. */
3181 if (! relocate)
3182 continue;
3183 }
3184 break;
3185
3186 case R_TILEPRO_IMM16_X0_TLS_LE:
3187 case R_TILEPRO_IMM16_X1_TLS_LE:
3188 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3189 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3190 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3191 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3192 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3193 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3194 if (!bfd_link_executable (info))
3195 {
3196 Elf_Internal_Rela outrel;
3197 bfd_boolean skip;
3198
3199 BFD_ASSERT (sreloc != NULL);
3200 skip = FALSE;
3201 outrel.r_offset =
3202 _bfd_elf_section_offset (output_bfd, info, input_section,
3203 rel->r_offset);
3204 if (outrel.r_offset == (bfd_vma) -1)
3205 skip = TRUE;
3206 else if (outrel.r_offset == (bfd_vma) -2)
3207 skip = TRUE;
3208 outrel.r_offset += (input_section->output_section->vma
3209 + input_section->output_offset);
3210 if (skip)
3211 memset (&outrel, 0, sizeof outrel);
3212 else
3213 {
3214 outrel.r_info = ELF32_R_INFO (0, r_type);
3215 outrel.r_addend = relocation - dtpoff_base (info)
3216 + rel->r_addend;
3217 }
3218
3219 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3220 continue;
3221 }
3222 relocation = tpoff (info, relocation);
3223 break;
3224
3225 case R_TILEPRO_IMM16_X0_TLS_GD:
3226 case R_TILEPRO_IMM16_X1_TLS_GD:
3227 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3228 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3229 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3230 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3231 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3232 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3233 case R_TILEPRO_IMM16_X0_TLS_IE:
3234 case R_TILEPRO_IMM16_X1_TLS_IE:
3235 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3236 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3237 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3238 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3239 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3240 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3241 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3242 tls_type = GOT_UNKNOWN;
3243 if (h == NULL && local_got_offsets)
3244 tls_type
3245 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3246 else if (h != NULL)
3247 {
3248 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3249 if (bfd_link_executable (info)
3250 && h->dynindx == -1
3251 && tls_type == GOT_TLS_IE)
3252 r_type = tilepro_tls_translate_to_le (r_type);
3253 }
3254 if (tls_type == GOT_TLS_IE)
3255 r_type = tilepro_tls_translate_to_ie (r_type);
3256
3257 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3258 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3259 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3260 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3261 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3262 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3263 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3264 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3265 {
3266 relocation = tpoff (info, relocation);
3267 break;
3268 }
3269
3270 if (h != NULL)
3271 {
3272 off = h->got.offset;
3273 h->got.offset |= 1;
3274 }
3275 else
3276 {
3277 BFD_ASSERT (local_got_offsets != NULL);
3278 off = local_got_offsets[r_symndx];
3279 local_got_offsets[r_symndx] |= 1;
3280 }
3281
3282 if (htab->elf.sgot == NULL)
3283 abort ();
3284
3285 if ((off & 1) != 0)
3286 off &= ~1;
3287 else
3288 {
3289 Elf_Internal_Rela outrel;
3290 int indx = 0;
3291 bfd_boolean need_relocs = FALSE;
3292
3293 if (htab->elf.srelgot == NULL)
3294 abort ();
3295
3296 if (h != NULL)
3297 {
3298 bfd_boolean dyn;
3299 dyn = htab->elf.dynamic_sections_created;
3300
3301 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3302 bfd_link_pic (info),
3303 h)
3304 && (!bfd_link_pic (info)
3305 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3306 {
3307 indx = h->dynindx;
3308 }
3309 }
3310
3311 /* The GOT entries have not been initialized yet. Do it
3312 now, and emit any relocations. */
3313 if ((bfd_link_pic (info) || indx != 0)
3314 && (h == NULL
3315 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3316 || h->root.type != bfd_link_hash_undefweak))
3317 need_relocs = TRUE;
3318
3319 switch (r_type)
3320 {
3321 case R_TILEPRO_IMM16_X0_TLS_IE:
3322 case R_TILEPRO_IMM16_X1_TLS_IE:
3323 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3324 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3325 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3326 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3327 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3328 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3329 if (need_relocs) {
3330 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3331 outrel.r_offset = (htab->elf.sgot->output_section->vma
3332 + htab->elf.sgot->output_offset + off);
3333 outrel.r_addend = 0;
3334 if (indx == 0)
3335 outrel.r_addend = relocation - dtpoff_base (info);
3336 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3337 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3338 &outrel);
3339 } else {
3340 bfd_put_32 (output_bfd, tpoff (info, relocation),
3341 htab->elf.sgot->contents + off);
3342 }
3343 break;
3344
3345 case R_TILEPRO_IMM16_X0_TLS_GD:
3346 case R_TILEPRO_IMM16_X1_TLS_GD:
3347 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3348 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3349 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3350 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3351 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3352 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3353 if (need_relocs) {
3354 outrel.r_offset = (htab->elf.sgot->output_section->vma
3355 + htab->elf.sgot->output_offset + off);
3356 outrel.r_addend = 0;
3357 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3358 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3359 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3360 &outrel);
3361 if (indx == 0)
3362 {
3363 BFD_ASSERT (! unresolved_reloc);
3364 bfd_put_32 (output_bfd,
3365 relocation - dtpoff_base (info),
3366 (htab->elf.sgot->contents + off +
3367 TILEPRO_BYTES_PER_WORD));
3368 }
3369 else
3370 {
3371 bfd_put_32 (output_bfd, 0,
3372 (htab->elf.sgot->contents + off +
3373 TILEPRO_BYTES_PER_WORD));
3374 outrel.r_info = ELF32_R_INFO (indx,
3375 R_TILEPRO_TLS_DTPOFF32);
3376 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3377 tilepro_elf_append_rela_32 (output_bfd,
3378 htab->elf.srelgot, &outrel);
3379 }
3380 }
3381
3382 else {
3383 /* If we are not emitting relocations for a
3384 general dynamic reference, then we must be in a
3385 static link or an executable link with the
3386 symbol binding locally. Mark it as belonging
3387 to module 1, the executable. */
3388 bfd_put_32 (output_bfd, 1,
3389 htab->elf.sgot->contents + off );
3390 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3391 htab->elf.sgot->contents + off +
3392 TILEPRO_BYTES_PER_WORD);
3393 }
3394 break;
3395 }
3396 }
3397
3398 if (off >= (bfd_vma) -2)
3399 abort ();
3400
3401 relocation = off - got_base;
3402 unresolved_reloc = FALSE;
3403 howto = tilepro_elf_howto_table + r_type;
3404 break;
3405
3406 default:
3407 break;
3408 }
3409
3410 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3411 because such sections are not SEC_ALLOC and thus ld.so will
3412 not process them. */
3413 if (unresolved_reloc
3414 && !((input_section->flags & SEC_DEBUGGING) != 0
3415 && h->def_dynamic)
3416 && _bfd_elf_section_offset (output_bfd, info, input_section,
3417 rel->r_offset) != (bfd_vma) -1)
3418 _bfd_error_handler
3419 /* xgettext:c-format */
3420 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
3421 input_bfd,
3422 input_section,
3423 rel->r_offset,
3424 howto->name,
3425 h->root.root.string);
3426
3427 r = bfd_reloc_continue;
3428
3429 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3430 * we will increment bit 16. The howto->rightshift takes care
3431 * of the rest for us. */
3432 switch (r_type)
3433 {
3434 case R_TILEPRO_HA16:
3435 case R_TILEPRO_IMM16_X0_HA:
3436 case R_TILEPRO_IMM16_X1_HA:
3437 case R_TILEPRO_IMM16_X0_HA_PCREL:
3438 case R_TILEPRO_IMM16_X1_HA_PCREL:
3439 case R_TILEPRO_IMM16_X0_GOT_HA:
3440 case R_TILEPRO_IMM16_X1_GOT_HA:
3441 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3442 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3443 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3444 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3445 relocation += 0x8000;
3446 break;
3447 }
3448
3449 /* Get the operand creation function, if any. */
3450 create_func = reloc_to_create_func[r_type];
3451 if (create_func == NULL)
3452 {
3453 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3454 contents, rel->r_offset,
3455 relocation, rel->r_addend);
3456 }
3457 else
3458 {
3459 if (howto->pc_relative)
3460 {
3461 relocation -=
3462 input_section->output_section->vma + input_section->output_offset;
3463 if (howto->pcrel_offset)
3464 relocation -= rel->r_offset;
3465 }
3466
3467 bfd_byte *data;
3468
3469 /* Add the relocation addend if any to the final target value */
3470 relocation += rel->r_addend;
3471
3472 /* Do basic range checking */
3473 r = bfd_check_overflow (howto->complain_on_overflow,
3474 howto->bitsize,
3475 howto->rightshift,
3476 32,
3477 relocation);
3478
3479 /*
3480 * Write the relocated value out into the raw section data.
3481 * Don't put a relocation out in the .rela section.
3482 */
3483 tilepro_bundle_bits mask = create_func(-1);
3484 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3485
3486 /* Only touch bytes while the mask is not 0, so we
3487 don't write to out of bounds memory if this is actually
3488 a 16-bit switch instruction. */
3489 for (data = contents + rel->r_offset; mask != 0; data++)
3490 {
3491 bfd_byte byte_mask = (bfd_byte)mask;
3492 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3493 mask >>= 8;
3494 value >>= 8;
3495 }
3496 }
3497
3498 if (r != bfd_reloc_ok)
3499 {
3500 const char *msg = NULL;
3501
3502 switch (r)
3503 {
3504 case bfd_reloc_overflow:
3505 (*info->callbacks->reloc_overflow)
3506 (info, (h ? &h->root : NULL), name, howto->name,
3507 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3508 break;
3509
3510 case bfd_reloc_undefined:
3511 (*info->callbacks->undefined_symbol)
3512 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3513 break;
3514
3515 case bfd_reloc_outofrange:
3516 msg = _("internal error: out of range error");
3517 break;
3518
3519 case bfd_reloc_notsupported:
3520 msg = _("internal error: unsupported relocation error");
3521 break;
3522
3523 case bfd_reloc_dangerous:
3524 msg = _("internal error: dangerous relocation");
3525 break;
3526
3527 default:
3528 msg = _("internal error: unknown error");
3529 break;
3530 }
3531
3532 if (msg)
3533 (*info->callbacks->warning) (info, msg, name, input_bfd,
3534 input_section, rel->r_offset);
3535 }
3536 }
3537
3538 return TRUE;
3539 }
3540
3541 /* Finish up dynamic symbol handling. We set the contents of various
3542 dynamic sections here. */
3543
3544 static bfd_boolean
3545 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3546 struct bfd_link_info *info,
3547 struct elf_link_hash_entry *h,
3548 Elf_Internal_Sym *sym)
3549 {
3550 struct tilepro_elf_link_hash_table *htab;
3551
3552 htab = tilepro_elf_hash_table (info);
3553 BFD_ASSERT (htab != NULL);
3554
3555 if (h->plt.offset != (bfd_vma) -1)
3556 {
3557 asection *splt;
3558 asection *srela;
3559 asection *sgotplt;
3560 Elf_Internal_Rela rela;
3561 bfd_byte *loc;
3562 bfd_vma r_offset;
3563
3564 int rela_index;
3565
3566 /* This symbol has an entry in the PLT. Set it up. */
3567
3568 BFD_ASSERT (h->dynindx != -1);
3569
3570 splt = htab->elf.splt;
3571 srela = htab->elf.srelplt;
3572 sgotplt = htab->elf.sgotplt;
3573
3574 if (splt == NULL || srela == NULL)
3575 abort ();
3576
3577 /* Fill in the entry in the procedure linkage table. */
3578 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3579 &r_offset);
3580
3581 /* Fill in the entry in the global offset table, which initially points
3582 to the beginning of the plt. */
3583 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3584 sgotplt->contents + r_offset);
3585
3586 /* Fill in the entry in the .rela.plt section. */
3587 rela.r_offset = (sgotplt->output_section->vma
3588 + sgotplt->output_offset
3589 + r_offset);
3590 rela.r_addend = 0;
3591 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3592
3593 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3594 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3595
3596 if (!h->def_regular)
3597 {
3598 /* Mark the symbol as undefined, rather than as defined in
3599 the .plt section. Leave the value alone. */
3600 sym->st_shndx = SHN_UNDEF;
3601 /* If the symbol is weak, we do need to clear the value.
3602 Otherwise, the PLT entry would provide a definition for
3603 the symbol even if the symbol wasn't defined anywhere,
3604 and so the symbol would never be NULL. */
3605 if (!h->ref_regular_nonweak)
3606 sym->st_value = 0;
3607 }
3608 }
3609
3610 if (h->got.offset != (bfd_vma) -1
3611 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3612 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3613 {
3614 asection *sgot;
3615 asection *srela;
3616 Elf_Internal_Rela rela;
3617
3618 /* This symbol has an entry in the GOT. Set it up. */
3619
3620 sgot = htab->elf.sgot;
3621 srela = htab->elf.srelgot;
3622 BFD_ASSERT (sgot != NULL && srela != NULL);
3623
3624 rela.r_offset = (sgot->output_section->vma
3625 + sgot->output_offset
3626 + (h->got.offset &~ (bfd_vma) 1));
3627
3628 /* If this is a -Bsymbolic link, and the symbol is defined
3629 locally, we just want to emit a RELATIVE reloc. Likewise if
3630 the symbol was forced to be local because of a version file.
3631 The entry in the global offset table will already have been
3632 initialized in the relocate_section function. */
3633 if (bfd_link_pic (info)
3634 && (info->symbolic || h->dynindx == -1)
3635 && h->def_regular)
3636 {
3637 asection *sec = h->root.u.def.section;
3638 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3639 rela.r_addend = (h->root.u.def.value
3640 + sec->output_section->vma
3641 + sec->output_offset);
3642 }
3643 else
3644 {
3645 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3646 rela.r_addend = 0;
3647 }
3648
3649 bfd_put_32 (output_bfd, 0,
3650 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3651 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3652 }
3653
3654 if (h->needs_copy)
3655 {
3656 asection *s;
3657 Elf_Internal_Rela rela;
3658
3659 /* This symbols needs a copy reloc. Set it up. */
3660 BFD_ASSERT (h->dynindx != -1);
3661
3662 rela.r_offset = (h->root.u.def.value
3663 + h->root.u.def.section->output_section->vma
3664 + h->root.u.def.section->output_offset);
3665 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3666 rela.r_addend = 0;
3667 if (h->root.u.def.section == htab->elf.sdynrelro)
3668 s = htab->elf.sreldynrelro;
3669 else
3670 s = htab->elf.srelbss;
3671 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3672 }
3673
3674 /* Mark some specially defined symbols as absolute. */
3675 if (h == htab->elf.hdynamic
3676 || (h == htab->elf.hgot || h == htab->elf.hplt))
3677 sym->st_shndx = SHN_ABS;
3678
3679 return TRUE;
3680 }
3681
3682 /* Finish up the dynamic sections. */
3683
3684 static bfd_boolean
3685 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3686 bfd *dynobj, asection *sdyn,
3687 asection *splt ATTRIBUTE_UNUSED)
3688 {
3689 Elf32_External_Dyn *dyncon, *dynconend;
3690 struct tilepro_elf_link_hash_table *htab;
3691
3692 htab = tilepro_elf_hash_table (info);
3693 BFD_ASSERT (htab != NULL);
3694 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3695 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3696 for (; dyncon < dynconend; dyncon++)
3697 {
3698 Elf_Internal_Dyn dyn;
3699 asection *s;
3700
3701 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3702
3703 switch (dyn.d_tag)
3704 {
3705 case DT_PLTGOT:
3706 s = htab->elf.sgotplt;
3707 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3708 break;
3709 case DT_JMPREL:
3710 s = htab->elf.srelplt;
3711 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3712 break;
3713 case DT_PLTRELSZ:
3714 s = htab->elf.srelplt;
3715 dyn.d_un.d_val = s->size;
3716 break;
3717 default:
3718 continue;
3719 }
3720
3721 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3722 }
3723 return TRUE;
3724 }
3725
3726 static bfd_boolean
3727 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3728 struct bfd_link_info *info)
3729 {
3730 bfd *dynobj;
3731 asection *sdyn;
3732 struct tilepro_elf_link_hash_table *htab;
3733
3734 htab = tilepro_elf_hash_table (info);
3735 BFD_ASSERT (htab != NULL);
3736 dynobj = htab->elf.dynobj;
3737
3738 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3739
3740 if (elf_hash_table (info)->dynamic_sections_created)
3741 {
3742 asection *splt;
3743 bfd_boolean ret;
3744
3745 splt = htab->elf.splt;
3746 BFD_ASSERT (splt != NULL && sdyn != NULL);
3747
3748 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3749
3750 if (!ret)
3751 return ret;
3752
3753 /* Fill in the first entry in the procedure linkage table. */
3754 if (splt->size > 0)
3755 {
3756 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3757 memset (splt->contents + PLT_HEADER_SIZE, 0,
3758 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3759 }
3760
3761 if (elf_section_data (splt->output_section) != NULL)
3762 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3763 = PLT_ENTRY_SIZE;
3764 }
3765
3766 if (htab->elf.sgotplt)
3767 {
3768 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3769 {
3770 _bfd_error_handler
3771 (_("discarded output section: `%A'"), htab->elf.sgotplt);
3772 return FALSE;
3773 }
3774
3775 if (htab->elf.sgotplt->size > 0)
3776 {
3777 /* Write the first two entries in .got.plt, needed for the dynamic
3778 linker. */
3779 bfd_put_32 (output_bfd, (bfd_vma) -1,
3780 htab->elf.sgotplt->contents);
3781 bfd_put_32 (output_bfd, (bfd_vma) 0,
3782 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3783 }
3784
3785 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3786 = GOT_ENTRY_SIZE;
3787 }
3788
3789 if (htab->elf.sgot)
3790 {
3791 if (htab->elf.sgot->size > 0)
3792 {
3793 /* Set the first entry in the global offset table to the address of
3794 the dynamic section. */
3795 bfd_vma val = (sdyn ?
3796 sdyn->output_section->vma + sdyn->output_offset :
3797 0);
3798 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3799 }
3800
3801 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3802 = GOT_ENTRY_SIZE;
3803 }
3804
3805 return TRUE;
3806 }
3807
3808 \f
3809
3810 /* Return address for Ith PLT stub in section PLT, for relocation REL
3811 or (bfd_vma) -1 if it should not be included. */
3812
3813 static bfd_vma
3814 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3815 const arelent *rel ATTRIBUTE_UNUSED)
3816 {
3817 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3818 }
3819
3820 static enum elf_reloc_type_class
3821 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3822 const asection *rel_sec ATTRIBUTE_UNUSED,
3823 const Elf_Internal_Rela *rela)
3824 {
3825 switch ((int) ELF32_R_TYPE (rela->r_info))
3826 {
3827 case R_TILEPRO_RELATIVE:
3828 return reloc_class_relative;
3829 case R_TILEPRO_JMP_SLOT:
3830 return reloc_class_plt;
3831 case R_TILEPRO_COPY:
3832 return reloc_class_copy;
3833 default:
3834 return reloc_class_normal;
3835 }
3836 }
3837
3838 static int
3839 tilepro_additional_program_headers (bfd *abfd,
3840 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3841 {
3842 /* Each .intrpt section specified by the user adds another PT_LOAD
3843 header since the sections are discontiguous. */
3844 static const char intrpt_sections[4][9] =
3845 {
3846 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3847 };
3848 int count = 0;
3849 int i;
3850
3851 for (i = 0; i < 4; i++)
3852 {
3853 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3854 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3855 ++count;
3856 }
3857
3858 /* Add four "padding" headers in to leave room in case a custom linker
3859 script does something fancy. Otherwise ld complains that it ran
3860 out of program headers and refuses to link. */
3861 count += 4;
3862
3863 return count;
3864 }
3865
3866 #define ELF_ARCH bfd_arch_tilepro
3867 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3868 #define ELF_MACHINE_CODE EM_TILEPRO
3869 #define ELF_MAXPAGESIZE 0x10000
3870 #define ELF_COMMONPAGESIZE 0x10000
3871
3872 #define TARGET_LITTLE_SYM tilepro_elf32_vec
3873 #define TARGET_LITTLE_NAME "elf32-tilepro"
3874
3875 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3876
3877 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3878 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3879 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3880
3881 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3882 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3883 #define elf_backend_check_relocs tilepro_elf_check_relocs
3884 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3885 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3886 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3887 #define elf_backend_relocate_section tilepro_elf_relocate_section
3888 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3889 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3890 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3891 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
3892 #define elf_info_to_howto_rel NULL
3893 #define elf_info_to_howto tilepro_info_to_howto_rela
3894 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
3895 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
3896 #define elf_backend_additional_program_headers tilepro_additional_program_headers
3897
3898 #define bfd_elf32_mkobject tilepro_elf_mkobject
3899
3900 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3901
3902 #define elf_backend_can_gc_sections 1
3903 #define elf_backend_can_refcount 1
3904 #define elf_backend_want_got_plt 1
3905 #define elf_backend_plt_readonly 1
3906 /* Align PLT mod 64 byte L2 line size. */
3907 #define elf_backend_plt_alignment 6
3908 #define elf_backend_want_plt_sym 1
3909 #define elf_backend_got_header_size GOT_ENTRY_SIZE
3910 #define elf_backend_want_dynrelro 1
3911 #define elf_backend_rela_normal 1
3912 #define elf_backend_default_execstack 0
3913
3914 #include "elf32-target.h"
The GNU Binutils are a collection of binary tools.