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Improve TLS support on TILE-Gx/TILEPro:
[deliverable/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright 2011 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 "bfd.h"
22 #include "sysdep.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 2, /* size (0 = byte, 1 = short, 2 = long) */
38 32, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_bitfield, /* 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 #include "elf/common.h"
741 #include "elf/internal.h"
742
743 struct tilepro_elf_link_hash_table
744 {
745 struct elf_link_hash_table elf;
746
747 /* Short-cuts to get to dynamic linker sections. */
748 asection *sdynbss;
749 asection *srelbss;
750
751 /* Small local sym to section mapping cache. */
752 struct sym_cache sym_cache;
753 };
754
755 /* Get the Tilepro ELF linker hash table from a link_info structure. */
756 #define tilepro_elf_hash_table(p) \
757 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
758 == TILEPRO_ELF_DATA \
759 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
760
761 static reloc_howto_type *
762 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
763 bfd_reloc_code_real_type code)
764 {
765 unsigned int i;
766
767 for (i = ARRAY_SIZE (tilepro_reloc_map); --i;)
768 {
769 const reloc_map * entry;
770
771 entry = tilepro_reloc_map + i;
772
773 if (entry->bfd_reloc_val == code)
774 return entry->table + (entry->tilepro_reloc_val
775 - entry->table[0].type);
776 }
777
778 return NULL;
779 }
780
781 static reloc_howto_type *
782 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
783 const char *r_name)
784 {
785 unsigned int i;
786
787 for (i = 0;
788 i < (sizeof (tilepro_elf_howto_table)
789 / sizeof (tilepro_elf_howto_table[0]));
790 i++)
791 if (tilepro_elf_howto_table[i].name != NULL
792 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
793 return &tilepro_elf_howto_table[i];
794
795 return NULL;
796 }
797
798 /* Set the howto pointer for an TILEPro ELF reloc. */
799
800 static void
801 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
802 arelent * cache_ptr,
803 Elf_Internal_Rela * dst)
804 {
805 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
806
807 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
808 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
809 else if (r_type - R_TILEPRO_GNU_VTINHERIT
810 <= (unsigned int) R_TILEPRO_GNU_VTENTRY)
811 cache_ptr->howto
812 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
813 else
814 abort ();
815 }
816
817 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
818
819 static const tilepro_create_func reloc_to_create_func[] =
820 {
821 /* The first fourteen relocation types don't correspond to operands */
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827 NULL,
828 NULL,
829 NULL,
830 NULL,
831 NULL,
832 NULL,
833 NULL,
834 NULL,
835 NULL,
836
837 /* The remaining relocations are used for immediate operands */
838 create_BrOff_X1,
839 create_JOffLong_X1,
840 create_JOffLong_X1,
841 create_Imm8_X0,
842 create_Imm8_Y0,
843 create_Imm8_X1,
844 create_Imm8_Y1,
845 create_MT_Imm15_X1,
846 create_MF_Imm15_X1,
847 create_Imm16_X0,
848 create_Imm16_X1,
849 create_Imm16_X0,
850 create_Imm16_X1,
851 create_Imm16_X0,
852 create_Imm16_X1,
853 create_Imm16_X0,
854 create_Imm16_X1,
855 create_Imm16_X0,
856 create_Imm16_X1,
857 create_Imm16_X0,
858 create_Imm16_X1,
859 create_Imm16_X0,
860 create_Imm16_X1,
861 create_Imm16_X0,
862 create_Imm16_X1,
863 create_Imm16_X0,
864 create_Imm16_X1,
865 create_Imm16_X0,
866 create_Imm16_X1,
867 create_Imm16_X0,
868 create_Imm16_X1,
869 create_Imm16_X0,
870 create_Imm16_X1,
871 create_MMStart_X0,
872 create_MMEnd_X0,
873 create_MMStart_X1,
874 create_MMEnd_X1,
875 create_ShAmt_X0,
876 create_ShAmt_X1,
877 create_ShAmt_Y0,
878 create_ShAmt_Y1,
879
880 create_Dest_Imm8_X1,
881 NULL,
882 NULL,
883 NULL,
884 NULL,
885 NULL,
886 NULL,
887 NULL,
888 NULL,
889 NULL,
890 NULL,
891
892 create_Imm16_X0,
893 create_Imm16_X1,
894 create_Imm16_X0,
895 create_Imm16_X1,
896 create_Imm16_X0,
897 create_Imm16_X1,
898 create_Imm16_X0,
899 create_Imm16_X1,
900 create_Imm16_X0,
901 create_Imm16_X1,
902 create_Imm16_X0,
903 create_Imm16_X1,
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908
909 NULL,
910 NULL,
911 NULL,
912
913 create_Imm16_X0,
914 create_Imm16_X1,
915 create_Imm16_X0,
916 create_Imm16_X1,
917 create_Imm16_X0,
918 create_Imm16_X1,
919 create_Imm16_X0,
920 create_Imm16_X1,
921 };
922
923 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
924
925 /* Support for core dump NOTE sections. */
926
927 static bfd_boolean
928 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
929 {
930 int offset;
931 size_t size;
932
933 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
934 return FALSE;
935
936 /* pr_cursig */
937 elf_tdata (abfd)->core_signal =
938 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
939
940 /* pr_pid */
941 elf_tdata (abfd)->core_pid =
942 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
943
944 /* pr_reg */
945 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
946 size = TILEPRO_GREGSET_T_SIZE;
947
948 /* Make a ".reg/999" section. */
949 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
950 size, note->descpos + offset);
951 }
952
953 static bfd_boolean
954 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
955 {
956 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
957 return FALSE;
958
959 elf_tdata (abfd)->core_program
960 = _bfd_elfcore_strndup (abfd,
961 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
962 16);
963 elf_tdata (abfd)->core_command
964 = _bfd_elfcore_strndup (abfd,
965 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
966 ELF_PR_PSARGS_SIZE);
967
968
969 /* Note that for some reason, a spurious space is tacked
970 onto the end of the args in some (at least one anyway)
971 implementations, so strip it off if it exists. */
972 {
973 char *command = elf_tdata (abfd)->core_command;
974 int n = strlen (command);
975
976 if (0 < n && command[n - 1] == ' ')
977 command[n - 1] = '\0';
978 }
979
980 return TRUE;
981 }
982
983
984 static void
985 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
986 {
987 Elf32_External_Rela *loc32;
988
989 loc32 = (Elf32_External_Rela *) s->contents;
990 loc32 += s->reloc_count++;
991 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
992 }
993
994 /* PLT/GOT stuff */
995
996 /* The procedure linkage table starts with the following header:
997
998 {
999 rli r29, r29, 16
1000 lwadd r28, r27, 4
1001 }
1002 lw r27, r27
1003 {
1004 info 10 ## SP not offset, return PC in LR
1005 jr r27
1006 }
1007
1008 Subsequent entries are the following, jumping to the header at the end:
1009
1010 lnk r28
1011 1:
1012 {
1013 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1014 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1015 }
1016 {
1017 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1018 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1019 }
1020 {
1021 auli r29, zero, MY_PLT_INDEX
1022 lw r28, r28
1023 }
1024 {
1025 info 10 ## SP not offset, return PC in LR
1026 jr r28
1027 }
1028
1029 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1030 16 bits as an unsigned offset; if we use the low bits we would get an
1031 unwanted sign extension. The PLT header then rotates the index to get the
1032 right value, before calling the resolution routine. This computation can
1033 fit in unused bundle slots so it's free.
1034
1035 This code sequence lets the code at at the start of the PLT determine
1036 which PLT entry was executed by examining 'r29'.
1037
1038 Note that MY_PLT_INDEX skips over the header entries, so the first
1039 actual jump table entry has index zero.
1040 */
1041
1042 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1043 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1044
1045 #define PLT_HEADER_SIZE \
1046 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1047 #define PLT_ENTRY_SIZE \
1048 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1049
1050 /* The size in bytes of an entry in the global offset table. */
1051
1052 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1053
1054 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1055
1056
1057 static const bfd_byte
1058 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1059 {
1060 0x5d, 0x07, 0x03, 0x70,
1061 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1062 0x00, 0x50, 0xba, 0x6d,
1063 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1064 0xff, 0xaf, 0x10, 0x50,
1065 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1066 };
1067
1068 static const bfd_byte
1069 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1070 {
1071 0x00, 0x50, 0x16, 0x70,
1072 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1073 0x1c, 0x07, 0x00, 0xa0,
1074 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1075 0xdd, 0x0f, 0x00, 0x30,
1076 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1077 0xff, 0xaf, 0x10, 0x50,
1078 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1079 0x00, 0x00, 0x00, 0x00,
1080 0x00, 0x00, 0x00, 0x00,
1081 };
1082
1083 static const bfd_byte
1084 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1085 {
1086 0x00, 0x50, 0x16, 0x70,
1087 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1088 0x1c, 0x07, 0x00, 0xb0,
1089 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1090 0x1c, 0x07, 0x00, 0xa0,
1091 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1092 0xdd, 0x0f, 0x00, 0x30,
1093 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1094 0xff, 0xaf, 0x10, 0x50,
1095 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1096 };
1097
1098 static bfd_vma
1099 tilepro_ha16(bfd_vma vma)
1100 {
1101 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1102 }
1103
1104 static int
1105 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1106 bfd_vma *r_offset)
1107 {
1108 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1109 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1110 tilepro_bundle_bits *pc;
1111
1112 /* Compute the distance from the got entry to the lnk. */
1113 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1114 + sgotplt->output_offset
1115 + got_offset
1116 - splt->output_section->vma
1117 - splt->output_offset
1118 - offset
1119 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1120
1121 /* Compute the distance to GOTPLT[0]. */
1122 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1123
1124 /* Check whether we can use the short plt entry with 16-bit offset. */
1125 bfd_boolean short_plt_entry =
1126 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1127
1128 /* Copy the plt entry template. */
1129 memcpy (splt->contents + offset,
1130 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1131 PLT_ENTRY_SIZE);
1132
1133 /* Write the immediate offsets. */
1134 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1135 pc++;
1136
1137 if (!short_plt_entry)
1138 {
1139 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1140 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1141 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1142 }
1143
1144 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1145 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1146 *pc++ |= create_Imm16_X0 (dist_got_entry)
1147 | create_Imm16_X1 (dist_got0);
1148
1149 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1150 *pc |= create_Imm16_X0 (plt_index);
1151
1152 /* Set the relocation offset. */
1153 *r_offset = got_offset;
1154
1155 return plt_index;
1156 }
1157
1158 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1159
1160
1161 /* Create an entry in an TILEPro ELF linker hash table. */
1162
1163 static struct bfd_hash_entry *
1164 link_hash_newfunc (struct bfd_hash_entry *entry,
1165 struct bfd_hash_table *table, const char *string)
1166 {
1167 /* Allocate the structure if it has not already been allocated by a
1168 subclass. */
1169 if (entry == NULL)
1170 {
1171 entry =
1172 bfd_hash_allocate (table,
1173 sizeof (struct tilepro_elf_link_hash_entry));
1174 if (entry == NULL)
1175 return entry;
1176 }
1177
1178 /* Call the allocation method of the superclass. */
1179 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1180 if (entry != NULL)
1181 {
1182 struct tilepro_elf_link_hash_entry *eh;
1183
1184 eh = (struct tilepro_elf_link_hash_entry *) entry;
1185 eh->dyn_relocs = NULL;
1186 eh->tls_type = GOT_UNKNOWN;
1187 }
1188
1189 return entry;
1190 }
1191
1192 /* Create a TILEPRO ELF linker hash table. */
1193
1194 static struct bfd_link_hash_table *
1195 tilepro_elf_link_hash_table_create (bfd *abfd)
1196 {
1197 struct tilepro_elf_link_hash_table *ret;
1198 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1199
1200 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1201 if (ret == NULL)
1202 return NULL;
1203
1204 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1205 sizeof (struct tilepro_elf_link_hash_entry),
1206 TILEPRO_ELF_DATA))
1207 {
1208 free (ret);
1209 return NULL;
1210 }
1211
1212 return &ret->elf.root;
1213 }
1214
1215 /* Create the .got section. */
1216
1217 static bfd_boolean
1218 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1219 {
1220 flagword flags;
1221 asection *s, *s_got;
1222 struct elf_link_hash_entry *h;
1223 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1224 struct elf_link_hash_table *htab = elf_hash_table (info);
1225
1226 /* This function may be called more than once. */
1227 s = bfd_get_section_by_name (abfd, ".got");
1228 if (s != NULL && (s->flags & SEC_LINKER_CREATED) != 0)
1229 return TRUE;
1230
1231 flags = bed->dynamic_sec_flags;
1232
1233 s = bfd_make_section_with_flags (abfd,
1234 (bed->rela_plts_and_copies_p
1235 ? ".rela.got" : ".rel.got"),
1236 (bed->dynamic_sec_flags
1237 | SEC_READONLY));
1238 if (s == NULL
1239 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1240 return FALSE;
1241 htab->srelgot = s;
1242
1243 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1244 if (s == NULL
1245 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1246 return FALSE;
1247 htab->sgot = s;
1248
1249 /* The first bit of the global offset table is the header. */
1250 s->size += bed->got_header_size;
1251
1252 if (bed->want_got_plt)
1253 {
1254 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1255 if (s == NULL
1256 || !bfd_set_section_alignment (abfd, s,
1257 bed->s->log_file_align))
1258 return FALSE;
1259 htab->sgotplt = s;
1260
1261 /* Reserve room for the header. */
1262 s->size += GOTPLT_HEADER_SIZE;
1263 }
1264
1265 if (bed->want_got_sym)
1266 {
1267 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1268 section. We don't do this in the linker script because we don't want
1269 to define the symbol if we are not creating a global offset
1270 table. */
1271 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1272 "_GLOBAL_OFFSET_TABLE_");
1273 elf_hash_table (info)->hgot = h;
1274 if (h == NULL)
1275 return FALSE;
1276 }
1277
1278 return TRUE;
1279 }
1280
1281 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1282 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1283 hash table. */
1284
1285 static bfd_boolean
1286 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1287 struct bfd_link_info *info)
1288 {
1289 struct tilepro_elf_link_hash_table *htab;
1290
1291 htab = tilepro_elf_hash_table (info);
1292 BFD_ASSERT (htab != NULL);
1293
1294 if (!tilepro_elf_create_got_section (dynobj, info))
1295 return FALSE;
1296
1297 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1298 return FALSE;
1299
1300 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1301 if (!info->shared)
1302 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1303
1304 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1305 || (!info->shared && !htab->srelbss))
1306 abort ();
1307
1308 return TRUE;
1309 }
1310
1311 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1312
1313 static void
1314 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1315 struct elf_link_hash_entry *dir,
1316 struct elf_link_hash_entry *ind)
1317 {
1318 struct tilepro_elf_link_hash_entry *edir, *eind;
1319
1320 edir = (struct tilepro_elf_link_hash_entry *) dir;
1321 eind = (struct tilepro_elf_link_hash_entry *) ind;
1322
1323 if (eind->dyn_relocs != NULL)
1324 {
1325 if (edir->dyn_relocs != NULL)
1326 {
1327 struct tilepro_elf_dyn_relocs **pp;
1328 struct tilepro_elf_dyn_relocs *p;
1329
1330 /* Add reloc counts against the indirect sym to the direct sym
1331 list. Merge any entries against the same section. */
1332 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1333 {
1334 struct tilepro_elf_dyn_relocs *q;
1335
1336 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1337 if (q->sec == p->sec)
1338 {
1339 q->pc_count += p->pc_count;
1340 q->count += p->count;
1341 *pp = p->next;
1342 break;
1343 }
1344 if (q == NULL)
1345 pp = &p->next;
1346 }
1347 *pp = edir->dyn_relocs;
1348 }
1349
1350 edir->dyn_relocs = eind->dyn_relocs;
1351 eind->dyn_relocs = NULL;
1352 }
1353
1354 if (ind->root.type == bfd_link_hash_indirect
1355 && dir->got.refcount <= 0)
1356 {
1357 edir->tls_type = eind->tls_type;
1358 eind->tls_type = GOT_UNKNOWN;
1359 }
1360 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1361 }
1362
1363 static int
1364 tilepro_tls_translate_to_le (int r_type)
1365 {
1366 switch (r_type)
1367 {
1368 case R_TILEPRO_IMM16_X0_TLS_GD:
1369 case R_TILEPRO_IMM16_X0_TLS_IE:
1370 return R_TILEPRO_IMM16_X0_TLS_LE;
1371
1372 case R_TILEPRO_IMM16_X1_TLS_GD:
1373 case R_TILEPRO_IMM16_X1_TLS_IE:
1374 return R_TILEPRO_IMM16_X1_TLS_LE;
1375
1376 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1377 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1378 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1379
1380 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1381 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1382 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1383
1384 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1385 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1386 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1387
1388 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1389 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1390 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1391
1392 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1393 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1394 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1395
1396 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1397 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1398 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1399 }
1400 return r_type;
1401 }
1402
1403 static int
1404 tilepro_tls_translate_to_ie (int r_type)
1405 {
1406 switch (r_type)
1407 {
1408 case R_TILEPRO_IMM16_X0_TLS_GD:
1409 case R_TILEPRO_IMM16_X0_TLS_IE:
1410 return R_TILEPRO_IMM16_X0_TLS_IE;
1411
1412 case R_TILEPRO_IMM16_X1_TLS_GD:
1413 case R_TILEPRO_IMM16_X1_TLS_IE:
1414 return R_TILEPRO_IMM16_X1_TLS_IE;
1415
1416 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1417 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1418 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1419
1420 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1421 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1422 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1423
1424 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1425 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1426 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1427
1428 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1429 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1430 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1431
1432 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1433 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1434 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1435
1436 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1437 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1438 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1439 }
1440 return r_type;
1441 }
1442
1443 static int
1444 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1445 int is_local)
1446 {
1447 if (info->shared)
1448 return r_type;
1449
1450 if (is_local)
1451 return tilepro_tls_translate_to_le (r_type);
1452 else
1453 return tilepro_tls_translate_to_ie (r_type);
1454 }
1455
1456 /* Look through the relocs for a section during the first phase, and
1457 allocate space in the global offset table or procedure linkage
1458 table. */
1459
1460 static bfd_boolean
1461 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1462 asection *sec, const Elf_Internal_Rela *relocs)
1463 {
1464 struct tilepro_elf_link_hash_table *htab;
1465 Elf_Internal_Shdr *symtab_hdr;
1466 struct elf_link_hash_entry **sym_hashes;
1467 const Elf_Internal_Rela *rel;
1468 const Elf_Internal_Rela *rel_end;
1469 asection *sreloc;
1470 int num_relocs;
1471
1472 if (info->relocatable)
1473 return TRUE;
1474
1475 htab = tilepro_elf_hash_table (info);
1476 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1477 sym_hashes = elf_sym_hashes (abfd);
1478
1479 sreloc = NULL;
1480
1481 num_relocs = sec->reloc_count;
1482
1483 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1484
1485 if (htab->elf.dynobj == NULL)
1486 htab->elf.dynobj = abfd;
1487
1488 rel_end = relocs + num_relocs;
1489 for (rel = relocs; rel < rel_end; rel++)
1490 {
1491 unsigned int r_type;
1492 unsigned long r_symndx;
1493 struct elf_link_hash_entry *h;
1494 int tls_type;
1495
1496 r_symndx = ELF32_R_SYM (rel->r_info);
1497 r_type = ELF32_R_TYPE (rel->r_info);
1498
1499 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1500 {
1501 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1502 abfd, r_symndx);
1503 return FALSE;
1504 }
1505
1506 if (r_symndx < symtab_hdr->sh_info)
1507 h = NULL;
1508 else
1509 {
1510 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1511 while (h->root.type == bfd_link_hash_indirect
1512 || h->root.type == bfd_link_hash_warning)
1513 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1514 }
1515
1516 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1517 switch (r_type)
1518 {
1519 case R_TILEPRO_IMM16_X0_TLS_LE:
1520 case R_TILEPRO_IMM16_X1_TLS_LE:
1521 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1522 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1523 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1524 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1525 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1526 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1527 if (info->shared)
1528 goto r_tilepro_plt32;
1529 break;
1530
1531 case R_TILEPRO_IMM16_X0_TLS_GD:
1532 case R_TILEPRO_IMM16_X1_TLS_GD:
1533 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1534 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1535 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1536 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1537 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1538 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1539 BFD_ASSERT (info->shared);
1540 tls_type = GOT_TLS_GD;
1541 goto have_got_reference;
1542
1543 case R_TILEPRO_IMM16_X0_TLS_IE:
1544 case R_TILEPRO_IMM16_X1_TLS_IE:
1545 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1546 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1547 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1548 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1549 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1550 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1551 tls_type = GOT_TLS_IE;
1552 if (info->shared)
1553 info->flags |= DF_STATIC_TLS;
1554 goto have_got_reference;
1555
1556 case R_TILEPRO_IMM16_X0_GOT:
1557 case R_TILEPRO_IMM16_X1_GOT:
1558 case R_TILEPRO_IMM16_X0_GOT_LO:
1559 case R_TILEPRO_IMM16_X1_GOT_LO:
1560 case R_TILEPRO_IMM16_X0_GOT_HI:
1561 case R_TILEPRO_IMM16_X1_GOT_HI:
1562 case R_TILEPRO_IMM16_X0_GOT_HA:
1563 case R_TILEPRO_IMM16_X1_GOT_HA:
1564 tls_type = GOT_NORMAL;
1565 /* Fall Through */
1566
1567 have_got_reference:
1568 /* This symbol requires a global offset table entry. */
1569 {
1570 int old_tls_type;
1571
1572 if (h != NULL)
1573 {
1574 h->got.refcount += 1;
1575 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1576 }
1577 else
1578 {
1579 bfd_signed_vma *local_got_refcounts;
1580
1581 /* This is a global offset table entry for a local symbol. */
1582 local_got_refcounts = elf_local_got_refcounts (abfd);
1583 if (local_got_refcounts == NULL)
1584 {
1585 bfd_size_type size;
1586
1587 size = symtab_hdr->sh_info;
1588 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1589 local_got_refcounts = ((bfd_signed_vma *)
1590 bfd_zalloc (abfd, size));
1591 if (local_got_refcounts == NULL)
1592 return FALSE;
1593 elf_local_got_refcounts (abfd) = local_got_refcounts;
1594 _bfd_tilepro_elf_local_got_tls_type (abfd)
1595 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1596 }
1597 local_got_refcounts[r_symndx] += 1;
1598 old_tls_type =
1599 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1600 }
1601
1602 /* If a TLS symbol is accessed using IE at least once,
1603 there is no point to use dynamic model for it. */
1604 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1605 && (old_tls_type != GOT_TLS_GD
1606 || tls_type != GOT_TLS_IE))
1607 {
1608 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1609 tls_type = old_tls_type;
1610 else
1611 {
1612 (*_bfd_error_handler)
1613 (_("%B: `%s' accessed both as normal and thread local symbol"),
1614 abfd, h ? h->root.root.string : "<local>");
1615 return FALSE;
1616 }
1617 }
1618
1619 if (old_tls_type != tls_type)
1620 {
1621 if (h != NULL)
1622 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1623 else
1624 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1625 tls_type;
1626 }
1627 }
1628
1629 if (htab->elf.sgot == NULL)
1630 {
1631 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1632 return FALSE;
1633 }
1634 break;
1635
1636 case R_TILEPRO_TLS_GD_CALL:
1637 if (info->shared)
1638 {
1639 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1640 against __tls_get_addr. */
1641 struct bfd_link_hash_entry *bh = NULL;
1642 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1643 "__tls_get_addr", 0,
1644 bfd_und_section_ptr, 0,
1645 NULL, FALSE, FALSE,
1646 &bh))
1647 return FALSE;
1648 h = (struct elf_link_hash_entry *) bh;
1649 }
1650 else
1651 break;
1652 /* Fall through */
1653
1654 case R_TILEPRO_JOFFLONG_X1_PLT:
1655 /* This symbol requires a procedure linkage table entry. We
1656 actually build the entry in adjust_dynamic_symbol,
1657 because this might be a case of linking PIC code without
1658 linking in any dynamic objects, in which case we don't
1659 need to generate a procedure linkage table after all. */
1660
1661 if (h != NULL)
1662 {
1663 h->needs_plt = 1;
1664 h->plt.refcount += 1;
1665 }
1666 break;
1667
1668 case R_TILEPRO_32_PCREL:
1669 case R_TILEPRO_16_PCREL:
1670 case R_TILEPRO_8_PCREL:
1671 case R_TILEPRO_IMM16_X0_PCREL:
1672 case R_TILEPRO_IMM16_X1_PCREL:
1673 case R_TILEPRO_IMM16_X0_LO_PCREL:
1674 case R_TILEPRO_IMM16_X1_LO_PCREL:
1675 case R_TILEPRO_IMM16_X0_HI_PCREL:
1676 case R_TILEPRO_IMM16_X1_HI_PCREL:
1677 case R_TILEPRO_IMM16_X0_HA_PCREL:
1678 case R_TILEPRO_IMM16_X1_HA_PCREL:
1679 if (h != NULL)
1680 h->non_got_ref = 1;
1681
1682 if (h != NULL
1683 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1684 break;
1685 /* Fall through. */
1686
1687 case R_TILEPRO_32:
1688 case R_TILEPRO_16:
1689 case R_TILEPRO_8:
1690 case R_TILEPRO_LO16:
1691 case R_TILEPRO_HI16:
1692 case R_TILEPRO_HA16:
1693 case R_TILEPRO_COPY:
1694 case R_TILEPRO_GLOB_DAT:
1695 case R_TILEPRO_JMP_SLOT:
1696 case R_TILEPRO_RELATIVE:
1697 case R_TILEPRO_BROFF_X1:
1698 case R_TILEPRO_JOFFLONG_X1:
1699 case R_TILEPRO_IMM8_X0:
1700 case R_TILEPRO_IMM8_Y0:
1701 case R_TILEPRO_IMM8_X1:
1702 case R_TILEPRO_IMM8_Y1:
1703 case R_TILEPRO_DEST_IMM8_X1:
1704 case R_TILEPRO_MT_IMM15_X1:
1705 case R_TILEPRO_MF_IMM15_X1:
1706 case R_TILEPRO_IMM16_X0:
1707 case R_TILEPRO_IMM16_X1:
1708 case R_TILEPRO_IMM16_X0_LO:
1709 case R_TILEPRO_IMM16_X1_LO:
1710 case R_TILEPRO_IMM16_X0_HI:
1711 case R_TILEPRO_IMM16_X1_HI:
1712 case R_TILEPRO_IMM16_X0_HA:
1713 case R_TILEPRO_IMM16_X1_HA:
1714 case R_TILEPRO_MMSTART_X0:
1715 case R_TILEPRO_MMEND_X0:
1716 case R_TILEPRO_MMSTART_X1:
1717 case R_TILEPRO_MMEND_X1:
1718 case R_TILEPRO_SHAMT_X0:
1719 case R_TILEPRO_SHAMT_X1:
1720 case R_TILEPRO_SHAMT_Y0:
1721 case R_TILEPRO_SHAMT_Y1:
1722 if (h != NULL)
1723 h->non_got_ref = 1;
1724
1725 r_tilepro_plt32:
1726 if (h != NULL && !info->shared)
1727 {
1728 /* We may need a .plt entry if the function this reloc
1729 refers to is in a shared lib. */
1730 h->plt.refcount += 1;
1731 }
1732
1733 /* If we are creating a shared library, and this is a reloc
1734 against a global symbol, or a non PC relative reloc
1735 against a local symbol, then we need to copy the reloc
1736 into the shared library. However, if we are linking with
1737 -Bsymbolic, we do not need to copy a reloc against a
1738 global symbol which is defined in an object we are
1739 including in the link (i.e., DEF_REGULAR is set). At
1740 this point we have not seen all the input files, so it is
1741 possible that DEF_REGULAR is not set now but will be set
1742 later (it is never cleared). In case of a weak definition,
1743 DEF_REGULAR may be cleared later by a strong definition in
1744 a shared library. We account for that possibility below by
1745 storing information in the relocs_copied field of the hash
1746 table entry. A similar situation occurs when creating
1747 shared libraries and symbol visibility changes render the
1748 symbol local.
1749
1750 If on the other hand, we are creating an executable, we
1751 may need to keep relocations for symbols satisfied by a
1752 dynamic library if we manage to avoid copy relocs for the
1753 symbol. */
1754 if ((info->shared
1755 && (sec->flags & SEC_ALLOC) != 0
1756 && (! tilepro_elf_howto_table[r_type].pc_relative
1757 || (h != NULL
1758 && (! info->symbolic
1759 || h->root.type == bfd_link_hash_defweak
1760 || !h->def_regular))))
1761 || (!info->shared
1762 && (sec->flags & SEC_ALLOC) != 0
1763 && h != NULL
1764 && (h->root.type == bfd_link_hash_defweak
1765 || !h->def_regular)))
1766 {
1767 struct tilepro_elf_dyn_relocs *p;
1768 struct tilepro_elf_dyn_relocs **head;
1769
1770 /* When creating a shared object, we must copy these
1771 relocs into the output file. We create a reloc
1772 section in dynobj and make room for the reloc. */
1773 if (sreloc == NULL)
1774 {
1775 sreloc = _bfd_elf_make_dynamic_reloc_section
1776 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1777
1778 if (sreloc == NULL)
1779 return FALSE;
1780 }
1781
1782 /* If this is a global symbol, we count the number of
1783 relocations we need for this symbol. */
1784 if (h != NULL)
1785 head =
1786 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1787 else
1788 {
1789 /* Track dynamic relocs needed for local syms too.
1790 We really need local syms available to do this
1791 easily. Oh well. */
1792
1793 asection *s;
1794 void *vpp;
1795 Elf_Internal_Sym *isym;
1796
1797 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1798 abfd, r_symndx);
1799 if (isym == NULL)
1800 return FALSE;
1801
1802 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1803 if (s == NULL)
1804 s = sec;
1805
1806 vpp = &elf_section_data (s)->local_dynrel;
1807 head = (struct tilepro_elf_dyn_relocs **) vpp;
1808 }
1809
1810 p = *head;
1811 if (p == NULL || p->sec != sec)
1812 {
1813 bfd_size_type amt = sizeof *p;
1814 p = ((struct tilepro_elf_dyn_relocs *)
1815 bfd_alloc (htab->elf.dynobj, amt));
1816 if (p == NULL)
1817 return FALSE;
1818 p->next = *head;
1819 *head = p;
1820 p->sec = sec;
1821 p->count = 0;
1822 p->pc_count = 0;
1823 }
1824
1825 p->count += 1;
1826 if (tilepro_elf_howto_table[r_type].pc_relative)
1827 p->pc_count += 1;
1828 }
1829
1830 break;
1831
1832 case R_TILEPRO_GNU_VTINHERIT:
1833 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1834 return FALSE;
1835 break;
1836
1837 case R_TILEPRO_GNU_VTENTRY:
1838 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1839 return FALSE;
1840 break;
1841
1842 default:
1843 break;
1844 }
1845 }
1846
1847 return TRUE;
1848 }
1849
1850 \f
1851 static asection *
1852 tilepro_elf_gc_mark_hook (asection *sec,
1853 struct bfd_link_info *info,
1854 Elf_Internal_Rela *rel,
1855 struct elf_link_hash_entry *h,
1856 Elf_Internal_Sym *sym)
1857 {
1858 if (h != NULL)
1859 {
1860 switch (ELF32_R_TYPE (rel->r_info))
1861 {
1862 case R_TILEPRO_GNU_VTINHERIT:
1863 case R_TILEPRO_GNU_VTENTRY:
1864 break;
1865 }
1866 }
1867
1868 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1869 }
1870
1871 /* Update the got entry reference counts for the section being removed. */
1872 static bfd_boolean
1873 tilepro_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1874 asection *sec, const Elf_Internal_Rela *relocs)
1875 {
1876 struct tilepro_elf_link_hash_table *htab;
1877 Elf_Internal_Shdr *symtab_hdr;
1878 struct elf_link_hash_entry **sym_hashes;
1879 bfd_signed_vma *local_got_refcounts;
1880 const Elf_Internal_Rela *rel, *relend;
1881
1882 if (info->relocatable)
1883 return TRUE;
1884
1885 BFD_ASSERT (is_tilepro_elf (abfd) || sec->reloc_count == 0);
1886
1887 elf_section_data (sec)->local_dynrel = NULL;
1888
1889 htab = tilepro_elf_hash_table (info);
1890 BFD_ASSERT (htab != NULL);
1891 symtab_hdr = &elf_symtab_hdr (abfd);
1892 sym_hashes = elf_sym_hashes (abfd);
1893 local_got_refcounts = elf_local_got_refcounts (abfd);
1894
1895 relend = relocs + sec->reloc_count;
1896 for (rel = relocs; rel < relend; rel++)
1897 {
1898 unsigned long r_symndx;
1899 unsigned int r_type;
1900 struct elf_link_hash_entry *h = NULL;
1901
1902 r_symndx = ELF32_R_SYM (rel->r_info);
1903 if (r_symndx >= symtab_hdr->sh_info)
1904 {
1905 struct tilepro_elf_link_hash_entry *eh;
1906 struct tilepro_elf_dyn_relocs **pp;
1907 struct tilepro_elf_dyn_relocs *p;
1908
1909 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1910 while (h->root.type == bfd_link_hash_indirect
1911 || h->root.type == bfd_link_hash_warning)
1912 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1913 eh = (struct tilepro_elf_link_hash_entry *) h;
1914 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1915 if (p->sec == sec)
1916 {
1917 /* Everything must go for SEC. */
1918 *pp = p->next;
1919 break;
1920 }
1921 }
1922
1923 r_type = ELF32_R_TYPE (rel->r_info);
1924 r_type = tilepro_elf_tls_transition (info, r_type, h != NULL);
1925 switch (r_type)
1926 {
1927 case R_TILEPRO_IMM16_X0_GOT:
1928 case R_TILEPRO_IMM16_X1_GOT:
1929 case R_TILEPRO_IMM16_X0_GOT_LO:
1930 case R_TILEPRO_IMM16_X1_GOT_LO:
1931 case R_TILEPRO_IMM16_X0_GOT_HI:
1932 case R_TILEPRO_IMM16_X1_GOT_HI:
1933 case R_TILEPRO_IMM16_X0_GOT_HA:
1934 case R_TILEPRO_IMM16_X1_GOT_HA:
1935 case R_TILEPRO_IMM16_X0_TLS_GD:
1936 case R_TILEPRO_IMM16_X1_TLS_GD:
1937 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1938 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1939 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1940 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1941 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1942 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1943 case R_TILEPRO_IMM16_X0_TLS_IE:
1944 case R_TILEPRO_IMM16_X1_TLS_IE:
1945 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1946 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1947 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1948 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1949 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1950 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1951 if (h != NULL)
1952 {
1953 if (h->got.refcount > 0)
1954 h->got.refcount--;
1955 }
1956 else
1957 {
1958 if (local_got_refcounts &&
1959 local_got_refcounts[r_symndx] > 0)
1960 local_got_refcounts[r_symndx]--;
1961 }
1962 break;
1963
1964 case R_TILEPRO_32_PCREL:
1965 case R_TILEPRO_16_PCREL:
1966 case R_TILEPRO_8_PCREL:
1967 case R_TILEPRO_IMM16_X0_PCREL:
1968 case R_TILEPRO_IMM16_X1_PCREL:
1969 case R_TILEPRO_IMM16_X0_LO_PCREL:
1970 case R_TILEPRO_IMM16_X1_LO_PCREL:
1971 case R_TILEPRO_IMM16_X0_HI_PCREL:
1972 case R_TILEPRO_IMM16_X1_HI_PCREL:
1973 case R_TILEPRO_IMM16_X0_HA_PCREL:
1974 case R_TILEPRO_IMM16_X1_HA_PCREL:
1975 if (h != NULL
1976 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1977 break;
1978 /* Fall through. */
1979
1980 case R_TILEPRO_32:
1981 case R_TILEPRO_16:
1982 case R_TILEPRO_8:
1983 case R_TILEPRO_LO16:
1984 case R_TILEPRO_HI16:
1985 case R_TILEPRO_HA16:
1986 case R_TILEPRO_COPY:
1987 case R_TILEPRO_GLOB_DAT:
1988 case R_TILEPRO_JMP_SLOT:
1989 case R_TILEPRO_RELATIVE:
1990 case R_TILEPRO_BROFF_X1:
1991 case R_TILEPRO_JOFFLONG_X1:
1992 case R_TILEPRO_IMM8_X0:
1993 case R_TILEPRO_IMM8_Y0:
1994 case R_TILEPRO_IMM8_X1:
1995 case R_TILEPRO_IMM8_Y1:
1996 case R_TILEPRO_DEST_IMM8_X1:
1997 case R_TILEPRO_MT_IMM15_X1:
1998 case R_TILEPRO_MF_IMM15_X1:
1999 case R_TILEPRO_IMM16_X0:
2000 case R_TILEPRO_IMM16_X1:
2001 case R_TILEPRO_IMM16_X0_LO:
2002 case R_TILEPRO_IMM16_X1_LO:
2003 case R_TILEPRO_IMM16_X0_HI:
2004 case R_TILEPRO_IMM16_X1_HI:
2005 case R_TILEPRO_IMM16_X0_HA:
2006 case R_TILEPRO_IMM16_X1_HA:
2007 case R_TILEPRO_MMSTART_X0:
2008 case R_TILEPRO_MMEND_X0:
2009 case R_TILEPRO_MMSTART_X1:
2010 case R_TILEPRO_MMEND_X1:
2011 case R_TILEPRO_SHAMT_X0:
2012 case R_TILEPRO_SHAMT_X1:
2013 case R_TILEPRO_SHAMT_Y0:
2014 case R_TILEPRO_SHAMT_Y1:
2015 if (info->shared)
2016 break;
2017 /* Fall through. */
2018
2019 case R_TILEPRO_JOFFLONG_X1_PLT:
2020 if (h != NULL)
2021 {
2022 if (h->plt.refcount > 0)
2023 h->plt.refcount--;
2024 }
2025 break;
2026
2027 default:
2028 break;
2029 }
2030 }
2031
2032 return TRUE;
2033 }
2034
2035 /* Adjust a symbol defined by a dynamic object and referenced by a
2036 regular object. The current definition is in some section of the
2037 dynamic object, but we're not including those sections. We have to
2038 change the definition to something the rest of the link can
2039 understand. */
2040
2041 static bfd_boolean
2042 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2043 struct elf_link_hash_entry *h)
2044 {
2045 struct tilepro_elf_link_hash_table *htab;
2046 struct tilepro_elf_link_hash_entry * eh;
2047 struct tilepro_elf_dyn_relocs *p;
2048 asection *s;
2049
2050 htab = tilepro_elf_hash_table (info);
2051 BFD_ASSERT (htab != NULL);
2052
2053 /* Make sure we know what is going on here. */
2054 BFD_ASSERT (htab->elf.dynobj != NULL
2055 && (h->needs_plt
2056 || h->u.weakdef != NULL
2057 || (h->def_dynamic
2058 && h->ref_regular
2059 && !h->def_regular)));
2060
2061 /* If this is a function, put it in the procedure linkage table. We
2062 will fill in the contents of the procedure linkage table later
2063 (although we could actually do it here). */
2064 if (h->type == STT_FUNC || h->needs_plt)
2065 {
2066 if (h->plt.refcount <= 0
2067 || SYMBOL_CALLS_LOCAL (info, h)
2068 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2069 && h->root.type == bfd_link_hash_undefweak))
2070 {
2071 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
2072 reloc in an input file, but the symbol was never referred
2073 to by a dynamic object, or if all references were garbage
2074 collected. In such a case, we don't actually need to build
2075 a procedure linkage table, and we can just do a
2076 R_TILEPRO_JOFFLONG_X1 relocation instead. */
2077 h->plt.offset = (bfd_vma) -1;
2078 h->needs_plt = 0;
2079 }
2080
2081 return TRUE;
2082 }
2083 else
2084 h->plt.offset = (bfd_vma) -1;
2085
2086 /* If this is a weak symbol, and there is a real definition, the
2087 processor independent code will have arranged for us to see the
2088 real definition first, and we can just use the same value. */
2089 if (h->u.weakdef != NULL)
2090 {
2091 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2092 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2093 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2094 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2095 return TRUE;
2096 }
2097
2098 /* This is a reference to a symbol defined by a dynamic object which
2099 is not a function. */
2100
2101 /* If we are creating a shared library, we must presume that the
2102 only references to the symbol are via the global offset table.
2103 For such cases we need not do anything here; the relocations will
2104 be handled correctly by relocate_section. */
2105 if (info->shared)
2106 return TRUE;
2107
2108 /* If there are no references to this symbol that do not use the
2109 GOT, we don't need to generate a copy reloc. */
2110 if (!h->non_got_ref)
2111 return TRUE;
2112
2113 /* If -z nocopyreloc was given, we won't generate them either. */
2114 if (info->nocopyreloc)
2115 {
2116 h->non_got_ref = 0;
2117 return TRUE;
2118 }
2119
2120 eh = (struct tilepro_elf_link_hash_entry *) h;
2121 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2122 {
2123 s = p->sec->output_section;
2124 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2125 break;
2126 }
2127
2128 /* If we didn't find any dynamic relocs in read-only sections, then
2129 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2130 if (p == NULL)
2131 {
2132 h->non_got_ref = 0;
2133 return TRUE;
2134 }
2135
2136 if (h->size == 0)
2137 {
2138 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2139 h->root.root.string);
2140 return TRUE;
2141 }
2142
2143 /* We must allocate the symbol in our .dynbss section, which will
2144 become part of the .bss section of the executable. There will be
2145 an entry for this symbol in the .dynsym section. The dynamic
2146 object will contain position independent code, so all references
2147 from the dynamic object to this symbol will go through the global
2148 offset table. The dynamic linker will use the .dynsym entry to
2149 determine the address it must put in the global offset table, so
2150 both the dynamic object and the regular object will refer to the
2151 same memory location for the variable. */
2152
2153 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
2154 to copy the initial value out of the dynamic object and into the
2155 runtime process image. We need to remember the offset into the
2156 .rel.bss section we are going to use. */
2157 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2158 {
2159 htab->srelbss->size += TILEPRO_ELF_RELA_BYTES;
2160 h->needs_copy = 1;
2161 }
2162
2163 return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
2164 }
2165
2166 /* Allocate space in .plt, .got and associated reloc sections for
2167 dynamic relocs. */
2168
2169 static bfd_boolean
2170 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2171 {
2172 struct bfd_link_info *info;
2173 struct tilepro_elf_link_hash_table *htab;
2174 struct tilepro_elf_link_hash_entry *eh;
2175 struct tilepro_elf_dyn_relocs *p;
2176
2177 if (h->root.type == bfd_link_hash_indirect)
2178 return TRUE;
2179
2180 info = (struct bfd_link_info *) inf;
2181 htab = tilepro_elf_hash_table (info);
2182 BFD_ASSERT (htab != NULL);
2183
2184 if (htab->elf.dynamic_sections_created
2185 && h->plt.refcount > 0)
2186 {
2187 /* Make sure this symbol is output as a dynamic symbol.
2188 Undefined weak syms won't yet be marked as dynamic. */
2189 if (h->dynindx == -1
2190 && !h->forced_local)
2191 {
2192 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2193 return FALSE;
2194 }
2195
2196 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2197 {
2198 asection *s = htab->elf.splt;
2199
2200 /* Allocate room for the header. */
2201 if (s->size == 0)
2202 {
2203 s->size = PLT_HEADER_SIZE;
2204 }
2205
2206 h->plt.offset = s->size;
2207
2208 /* If this symbol is not defined in a regular file, and we are
2209 not generating a shared library, then set the symbol to this
2210 location in the .plt. This is required to make function
2211 pointers compare as equal between the normal executable and
2212 the shared library. */
2213 if (! info->shared
2214 && !h->def_regular)
2215 {
2216 h->root.u.def.section = s;
2217 h->root.u.def.value = h->plt.offset;
2218 }
2219
2220 /* Make room for this entry. */
2221 s->size += PLT_ENTRY_SIZE;
2222
2223 /* We also need to make an entry in the .got.plt section. */
2224 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2225
2226 /* We also need to make an entry in the .rela.plt section. */
2227 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2228 }
2229 else
2230 {
2231 h->plt.offset = (bfd_vma) -1;
2232 h->needs_plt = 0;
2233 }
2234 }
2235 else
2236 {
2237 h->plt.offset = (bfd_vma) -1;
2238 h->needs_plt = 0;
2239 }
2240
2241 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2242 requiring no TLS entry. */
2243 if (h->got.refcount > 0
2244 && !info->shared
2245 && h->dynindx == -1
2246 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2247 h->got.offset = (bfd_vma) -1;
2248 else if (h->got.refcount > 0)
2249 {
2250 asection *s;
2251 bfd_boolean dyn;
2252 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2253
2254 /* Make sure this symbol is output as a dynamic symbol.
2255 Undefined weak syms won't yet be marked as dynamic. */
2256 if (h->dynindx == -1
2257 && !h->forced_local)
2258 {
2259 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2260 return FALSE;
2261 }
2262
2263 s = htab->elf.sgot;
2264 h->got.offset = s->size;
2265 s->size += TILEPRO_BYTES_PER_WORD;
2266 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2267 if (tls_type == GOT_TLS_GD)
2268 s->size += TILEPRO_BYTES_PER_WORD;
2269 dyn = htab->elf.dynamic_sections_created;
2270 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2271 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2272 global. */
2273 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2274 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2275 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2276 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2277 }
2278 else
2279 h->got.offset = (bfd_vma) -1;
2280
2281 eh = (struct tilepro_elf_link_hash_entry *) h;
2282 if (eh->dyn_relocs == NULL)
2283 return TRUE;
2284
2285 /* In the shared -Bsymbolic case, discard space allocated for
2286 dynamic pc-relative relocs against symbols which turn out to be
2287 defined in regular objects. For the normal shared case, discard
2288 space for pc-relative relocs that have become local due to symbol
2289 visibility changes. */
2290
2291 if (info->shared)
2292 {
2293 if (SYMBOL_CALLS_LOCAL (info, h))
2294 {
2295 struct tilepro_elf_dyn_relocs **pp;
2296
2297 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2298 {
2299 p->count -= p->pc_count;
2300 p->pc_count = 0;
2301 if (p->count == 0)
2302 *pp = p->next;
2303 else
2304 pp = &p->next;
2305 }
2306 }
2307
2308 /* Also discard relocs on undefined weak syms with non-default
2309 visibility. */
2310 if (eh->dyn_relocs != NULL
2311 && h->root.type == bfd_link_hash_undefweak)
2312 {
2313 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2314 eh->dyn_relocs = NULL;
2315
2316 /* Make sure undefined weak symbols are output as a dynamic
2317 symbol in PIEs. */
2318 else if (h->dynindx == -1
2319 && !h->forced_local)
2320 {
2321 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2322 return FALSE;
2323 }
2324 }
2325 }
2326 else
2327 {
2328 /* For the non-shared case, discard space for relocs against
2329 symbols which turn out to need copy relocs or are not
2330 dynamic. */
2331
2332 if (!h->non_got_ref
2333 && ((h->def_dynamic
2334 && !h->def_regular)
2335 || (htab->elf.dynamic_sections_created
2336 && (h->root.type == bfd_link_hash_undefweak
2337 || h->root.type == bfd_link_hash_undefined))))
2338 {
2339 /* Make sure this symbol is output as a dynamic symbol.
2340 Undefined weak syms won't yet be marked as dynamic. */
2341 if (h->dynindx == -1
2342 && !h->forced_local)
2343 {
2344 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2345 return FALSE;
2346 }
2347
2348 /* If that succeeded, we know we'll be keeping all the
2349 relocs. */
2350 if (h->dynindx != -1)
2351 goto keep;
2352 }
2353
2354 eh->dyn_relocs = NULL;
2355
2356 keep: ;
2357 }
2358
2359 /* Finally, allocate space. */
2360 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2361 {
2362 asection *sreloc = elf_section_data (p->sec)->sreloc;
2363 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2364 }
2365
2366 return TRUE;
2367 }
2368
2369 /* Find any dynamic relocs that apply to read-only sections. */
2370
2371 static bfd_boolean
2372 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2373 {
2374 struct tilepro_elf_link_hash_entry *eh;
2375 struct tilepro_elf_dyn_relocs *p;
2376
2377 eh = (struct tilepro_elf_link_hash_entry *) h;
2378 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2379 {
2380 asection *s = p->sec->output_section;
2381
2382 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2383 {
2384 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2385
2386 info->flags |= DF_TEXTREL;
2387
2388 /* Not an error, just cut short the traversal. */
2389 return FALSE;
2390 }
2391 }
2392 return TRUE;
2393 }
2394
2395 /* Return true if the dynamic symbol for a given section should be
2396 omitted when creating a shared library. */
2397
2398 static bfd_boolean
2399 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2400 struct bfd_link_info *info,
2401 asection *p)
2402 {
2403 /* We keep the .got section symbol so that explicit relocations
2404 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2405 can be turned into relocations against the .got symbol. */
2406 if (strcmp (p->name, ".got") == 0)
2407 return FALSE;
2408
2409 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2410 }
2411
2412 /* Set the sizes of the dynamic sections. */
2413
2414 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2415
2416 static bfd_boolean
2417 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2418 struct bfd_link_info *info)
2419 {
2420 (void)output_bfd;
2421
2422 struct tilepro_elf_link_hash_table *htab;
2423 bfd *dynobj;
2424 asection *s;
2425 bfd *ibfd;
2426
2427 htab = tilepro_elf_hash_table (info);
2428 BFD_ASSERT (htab != NULL);
2429 dynobj = htab->elf.dynobj;
2430 BFD_ASSERT (dynobj != NULL);
2431
2432 if (elf_hash_table (info)->dynamic_sections_created)
2433 {
2434 /* Set the contents of the .interp section to the interpreter. */
2435 if (info->executable)
2436 {
2437 s = bfd_get_section_by_name (dynobj, ".interp");
2438 BFD_ASSERT (s != NULL);
2439 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2440 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2441 }
2442 }
2443
2444 /* Set up .got offsets for local syms, and space for local dynamic
2445 relocs. */
2446 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2447 {
2448 bfd_signed_vma *local_got;
2449 bfd_signed_vma *end_local_got;
2450 char *local_tls_type;
2451 bfd_size_type locsymcount;
2452 Elf_Internal_Shdr *symtab_hdr;
2453 asection *srel;
2454
2455 if (! is_tilepro_elf (ibfd))
2456 continue;
2457
2458 for (s = ibfd->sections; s != NULL; s = s->next)
2459 {
2460 struct tilepro_elf_dyn_relocs *p;
2461
2462 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2463 {
2464 if (!bfd_is_abs_section (p->sec)
2465 && bfd_is_abs_section (p->sec->output_section))
2466 {
2467 /* Input section has been discarded, either because
2468 it is a copy of a linkonce section or due to
2469 linker script /DISCARD/, so we'll be discarding
2470 the relocs too. */
2471 }
2472 else if (p->count != 0)
2473 {
2474 srel = elf_section_data (p->sec)->sreloc;
2475 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2476 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2477 info->flags |= DF_TEXTREL;
2478 }
2479 }
2480 }
2481
2482 local_got = elf_local_got_refcounts (ibfd);
2483 if (!local_got)
2484 continue;
2485
2486 symtab_hdr = &elf_symtab_hdr (ibfd);
2487 locsymcount = symtab_hdr->sh_info;
2488 end_local_got = local_got + locsymcount;
2489 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2490 s = htab->elf.sgot;
2491 srel = htab->elf.srelgot;
2492 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2493 {
2494 if (*local_got > 0)
2495 {
2496 *local_got = s->size;
2497 s->size += TILEPRO_BYTES_PER_WORD;
2498 if (*local_tls_type == GOT_TLS_GD)
2499 s->size += TILEPRO_BYTES_PER_WORD;
2500 if (info->shared
2501 || *local_tls_type == GOT_TLS_GD
2502 || *local_tls_type == GOT_TLS_IE)
2503 srel->size += TILEPRO_ELF_RELA_BYTES;
2504 }
2505 else
2506 *local_got = (bfd_vma) -1;
2507 }
2508 }
2509
2510 /* Allocate global sym .plt and .got entries, and space for global
2511 sym dynamic relocs. */
2512 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2513
2514 if (elf_hash_table (info)->dynamic_sections_created)
2515 {
2516 /* If the .got section is more than 0x8000 bytes, we add
2517 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2518 bit relocations have a greater chance of working. */
2519 if (htab->elf.sgot->size >= 0x8000
2520 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2521 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2522 }
2523
2524 if (htab->elf.sgotplt)
2525 {
2526 struct elf_link_hash_entry *got;
2527 got = elf_link_hash_lookup (elf_hash_table (info),
2528 "_GLOBAL_OFFSET_TABLE_",
2529 FALSE, FALSE, FALSE);
2530
2531 /* Don't allocate .got.plt section if there are no GOT nor PLT
2532 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2533 if ((got == NULL
2534 || !got->ref_regular_nonweak)
2535 && (htab->elf.sgotplt->size
2536 == GOTPLT_HEADER_SIZE)
2537 && (htab->elf.splt == NULL
2538 || htab->elf.splt->size == 0)
2539 && (htab->elf.sgot == NULL
2540 || (htab->elf.sgot->size
2541 == get_elf_backend_data (output_bfd)->got_header_size)))
2542 htab->elf.sgotplt->size = 0;
2543 }
2544
2545 /* The check_relocs and adjust_dynamic_symbol entry points have
2546 determined the sizes of the various dynamic sections. Allocate
2547 memory for them. */
2548 for (s = dynobj->sections; s != NULL; s = s->next)
2549 {
2550 if ((s->flags & SEC_LINKER_CREATED) == 0)
2551 continue;
2552
2553 if (s == htab->elf.splt
2554 || s == htab->elf.sgot
2555 || s == htab->elf.sgotplt
2556 || s == htab->sdynbss)
2557 {
2558 /* Strip this section if we don't need it; see the
2559 comment below. */
2560 }
2561 else if (strncmp (s->name, ".rela", 5) == 0)
2562 {
2563 if (s->size != 0)
2564 {
2565 /* We use the reloc_count field as a counter if we need
2566 to copy relocs into the output file. */
2567 s->reloc_count = 0;
2568 }
2569 }
2570 else
2571 {
2572 /* It's not one of our sections. */
2573 continue;
2574 }
2575
2576 if (s->size == 0)
2577 {
2578 /* If we don't need this section, strip it from the
2579 output file. This is mostly to handle .rela.bss and
2580 .rela.plt. We must create both sections in
2581 create_dynamic_sections, because they must be created
2582 before the linker maps input sections to output
2583 sections. The linker does that before
2584 adjust_dynamic_symbol is called, and it is that
2585 function which decides whether anything needs to go
2586 into these sections. */
2587 s->flags |= SEC_EXCLUDE;
2588 continue;
2589 }
2590
2591 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2592 continue;
2593
2594 /* Allocate memory for the section contents. Zero the memory
2595 for the benefit of .rela.plt, which has 4 unused entries
2596 at the beginning, and we don't want garbage. */
2597 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2598 if (s->contents == NULL)
2599 return FALSE;
2600 }
2601
2602 if (elf_hash_table (info)->dynamic_sections_created)
2603 {
2604 /* Add some entries to the .dynamic section. We fill in the
2605 values later, in tilepro_elf_finish_dynamic_sections, but we
2606 must add the entries now so that we get the correct size for
2607 the .dynamic section. The DT_DEBUG entry is filled in by the
2608 dynamic linker and used by the debugger. */
2609 #define add_dynamic_entry(TAG, VAL) \
2610 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2611
2612 if (info->executable)
2613 {
2614 if (!add_dynamic_entry (DT_DEBUG, 0))
2615 return FALSE;
2616 }
2617
2618 if (htab->elf.srelplt->size != 0)
2619 {
2620 if (!add_dynamic_entry (DT_PLTGOT, 0)
2621 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2622 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2623 || !add_dynamic_entry (DT_JMPREL, 0))
2624 return FALSE;
2625 }
2626
2627 if (!add_dynamic_entry (DT_RELA, 0)
2628 || !add_dynamic_entry (DT_RELASZ, 0)
2629 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2630 return FALSE;
2631
2632 /* If any dynamic relocs apply to a read-only section,
2633 then we need a DT_TEXTREL entry. */
2634 if ((info->flags & DF_TEXTREL) == 0)
2635 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2636
2637 if (info->flags & DF_TEXTREL)
2638 {
2639 if (!add_dynamic_entry (DT_TEXTREL, 0))
2640 return FALSE;
2641 }
2642 }
2643 #undef add_dynamic_entry
2644
2645 return TRUE;
2646 }
2647 \f
2648 /* Return the base VMA address which should be subtracted from real addresses
2649 when resolving @dtpoff relocation.
2650 This is PT_TLS segment p_vaddr. */
2651
2652 static bfd_vma
2653 dtpoff_base (struct bfd_link_info *info)
2654 {
2655 /* If tls_sec is NULL, we should have signalled an error already. */
2656 if (elf_hash_table (info)->tls_sec == NULL)
2657 return 0;
2658 return elf_hash_table (info)->tls_sec->vma;
2659 }
2660
2661 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2662
2663 static bfd_vma
2664 tpoff (struct bfd_link_info *info, bfd_vma address)
2665 {
2666 struct elf_link_hash_table *htab = elf_hash_table (info);
2667
2668 /* If tls_sec is NULL, we should have signalled an error already. */
2669 if (htab->tls_sec == NULL)
2670 return 0;
2671
2672 return (address - htab->tls_sec->vma);
2673 }
2674
2675 /* Replace the MASK bits in ADDR with those in INSN, for the next
2676 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2677
2678 static void
2679 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2680 const bfd_byte *insn)
2681 {
2682 int i;
2683 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2684 {
2685 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2686 }
2687 }
2688
2689 /* Mask to extract the bits corresponding to an instruction in a
2690 specific pipe of a bundle. */
2691 static const bfd_byte insn_mask_X1[] = {
2692 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2693 };
2694
2695 /* Mask to extract the bits corresponding to an instruction in a
2696 specific pipe of a bundle, minus the destination operand and the
2697 first source operand. */
2698 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2699 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2700 };
2701
2702 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2703 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2704 };
2705
2706 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2707 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2708 };
2709
2710 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2711 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2712 };
2713
2714 /* Mask to extract the first source operand of an instruction. */
2715 static const bfd_byte srca_mask_X0[] = {
2716 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2717 };
2718
2719 static const bfd_byte srca_mask_X1[] = {
2720 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2721 };
2722
2723 /* Various instructions synthesized to support tls references. */
2724
2725 /* move r0, r0 in the X1 pipe, used for tls le. */
2726 static const bfd_byte insn_tls_le_move_X1[] = {
2727 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2728 };
2729
2730 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2731 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2732 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2733 };
2734
2735 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2736 static const bfd_byte insn_tls_ie_lw_X1[] = {
2737 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2738 };
2739
2740 /* add r0, r0, tp in various pipes, used for tls ie. */
2741 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2742 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2743 };
2744 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2745 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2746 };
2747
2748 /* move r0, r0 in various pipes, used for tls gd. */
2749 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2750 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2751 };
2752 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2753 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2754 };
2755
2756 /* Relocate an TILEPRO ELF section.
2757
2758 The RELOCATE_SECTION function is called by the new ELF backend linker
2759 to handle the relocations for a section.
2760
2761 The relocs are always passed as Rela structures.
2762
2763 This function is responsible for adjusting the section contents as
2764 necessary, and (if generating a relocatable output file) adjusting
2765 the reloc addend as necessary.
2766
2767 This function does not have to worry about setting the reloc
2768 address or the reloc symbol index.
2769
2770 LOCAL_SYMS is a pointer to the swapped in local symbols.
2771
2772 LOCAL_SECTIONS is an array giving the section in the input file
2773 corresponding to the st_shndx field of each local symbol.
2774
2775 The global hash table entry for the global symbols can be found
2776 via elf_sym_hashes (input_bfd).
2777
2778 When generating relocatable output, this function must handle
2779 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2780 going to be the section symbol corresponding to the output
2781 section, which means that the addend must be adjusted
2782 accordingly. */
2783
2784 static bfd_boolean
2785 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2786 bfd *input_bfd, asection *input_section,
2787 bfd_byte *contents, Elf_Internal_Rela *relocs,
2788 Elf_Internal_Sym *local_syms,
2789 asection **local_sections)
2790 {
2791 struct tilepro_elf_link_hash_table *htab;
2792 Elf_Internal_Shdr *symtab_hdr;
2793 struct elf_link_hash_entry **sym_hashes;
2794 bfd_vma *local_got_offsets;
2795 bfd_vma got_base;
2796 asection *sreloc;
2797 Elf_Internal_Rela *rel;
2798 Elf_Internal_Rela *relend;
2799 int num_relocs;
2800
2801 htab = tilepro_elf_hash_table (info);
2802 BFD_ASSERT (htab != NULL);
2803 symtab_hdr = &elf_symtab_hdr (input_bfd);
2804 sym_hashes = elf_sym_hashes (input_bfd);
2805 local_got_offsets = elf_local_got_offsets (input_bfd);
2806
2807 if (elf_hash_table (info)->hgot == NULL)
2808 got_base = 0;
2809 else
2810 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2811
2812 sreloc = elf_section_data (input_section)->sreloc;
2813
2814 rel = relocs;
2815 num_relocs = input_section->reloc_count;
2816 relend = relocs + num_relocs;
2817 for (; rel < relend; rel++)
2818 {
2819 int r_type, tls_type;
2820 bfd_boolean is_tls_iele, is_tls_le;
2821 reloc_howto_type *howto;
2822 unsigned long r_symndx;
2823 struct elf_link_hash_entry *h;
2824 Elf_Internal_Sym *sym;
2825 tilepro_create_func create_func;
2826 asection *sec;
2827 bfd_vma relocation;
2828 bfd_reloc_status_type r;
2829 const char *name;
2830 bfd_vma off;
2831 bfd_boolean is_plt = FALSE;
2832
2833 bfd_boolean unresolved_reloc;
2834
2835 r_type = ELF32_R_TYPE (rel->r_info);
2836 if (r_type == R_TILEPRO_GNU_VTINHERIT
2837 || r_type == R_TILEPRO_GNU_VTENTRY)
2838 continue;
2839
2840 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2841 {
2842 /* Not clear if we need to check here, but just be paranoid. */
2843 (*_bfd_error_handler)
2844 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
2845 input_bfd, r_type, input_section);
2846 bfd_set_error (bfd_error_bad_value);
2847 return FALSE;
2848 }
2849
2850 howto = tilepro_elf_howto_table + r_type;
2851
2852 /* This is a final link. */
2853 r_symndx = ELF32_R_SYM (rel->r_info);
2854 h = NULL;
2855 sym = NULL;
2856 sec = NULL;
2857 unresolved_reloc = FALSE;
2858 if (r_symndx < symtab_hdr->sh_info)
2859 {
2860 sym = local_syms + r_symndx;
2861 sec = local_sections[r_symndx];
2862 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2863 }
2864 else
2865 {
2866 bfd_boolean warned;
2867
2868 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2869 r_symndx, symtab_hdr, sym_hashes,
2870 h, sec, relocation,
2871 unresolved_reloc, warned);
2872 if (warned)
2873 {
2874 /* To avoid generating warning messages about truncated
2875 relocations, set the relocation's address to be the same as
2876 the start of this section. */
2877 if (input_section->output_section != NULL)
2878 relocation = input_section->output_section->vma;
2879 else
2880 relocation = 0;
2881 }
2882 }
2883
2884 if (sec != NULL && elf_discarded_section (sec))
2885 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2886 rel, relend, howto, contents);
2887
2888 if (info->relocatable)
2889 continue;
2890
2891 if (h != NULL)
2892 name = h->root.root.string;
2893 else
2894 {
2895 name = (bfd_elf_string_from_elf_section
2896 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2897 if (name == NULL || *name == '\0')
2898 name = bfd_section_name (input_bfd, sec);
2899 }
2900
2901 switch (r_type)
2902 {
2903 case R_TILEPRO_TLS_GD_CALL:
2904 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2905 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2906 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2907 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2908 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2909 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2910 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2911 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2912 tls_type = GOT_UNKNOWN;
2913 if (h == NULL && local_got_offsets)
2914 tls_type =
2915 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2916 else if (h != NULL)
2917 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2918
2919 is_tls_iele = (! info->shared || tls_type == GOT_TLS_IE);
2920 is_tls_le = is_tls_iele && (!info->shared
2921 && (h == NULL || h->dynindx == -1));
2922
2923 if (r_type == R_TILEPRO_TLS_GD_CALL)
2924 {
2925 if (is_tls_le)
2926 {
2927 /* GD -> LE */
2928 tilepro_replace_insn (contents + rel->r_offset,
2929 insn_mask_X1, insn_tls_le_move_X1);
2930 continue;
2931 }
2932 else if (is_tls_iele)
2933 {
2934 /* GD -> IE */
2935 tilepro_replace_insn (contents + rel->r_offset,
2936 insn_mask_X1, insn_tls_ie_lw_X1);
2937 continue;
2938 }
2939
2940 /* GD -> GD */
2941 h = (struct elf_link_hash_entry *)
2942 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2943 FALSE, TRUE);
2944 BFD_ASSERT (h != NULL);
2945 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2946 howto = tilepro_elf_howto_table + r_type;
2947 }
2948 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2949 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2950 {
2951 if (is_tls_le)
2952 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2953 insn_tls_le_move_zero_X0X1);
2954 }
2955 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2956 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2957 {
2958 if (is_tls_le)
2959 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2960 insn_tls_le_move_zero_X0X1);
2961 }
2962 else
2963 {
2964 const bfd_byte *mask = NULL;
2965 const bfd_byte *add_insn = NULL;
2966
2967 switch (r_type)
2968 {
2969 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2970 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2971 : insn_tls_gd_add_X0X1;
2972 mask = insn_mask_X0_no_dest_no_srca;
2973 break;
2974 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2975 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2976 : insn_tls_gd_add_X0X1;
2977 mask = insn_mask_X1_no_dest_no_srca;
2978 break;
2979 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2980 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2981 : insn_tls_gd_add_Y0Y1;
2982 mask = insn_mask_Y0_no_dest_no_srca;
2983 break;
2984 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2985 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2986 : insn_tls_gd_add_Y0Y1;
2987 mask = insn_mask_Y1_no_dest_no_srca;
2988 break;
2989 }
2990
2991 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2992
2993 continue;
2994 }
2995 break;
2996 case R_TILEPRO_TLS_IE_LOAD:
2997 if (!info->shared && (h == NULL || h->dynindx == -1))
2998 /* IE -> LE */
2999 tilepro_replace_insn (contents + rel->r_offset,
3000 insn_mask_X1_no_dest_no_srca,
3001 insn_tls_le_move_X1);
3002 else
3003 /* IE -> IE */
3004 tilepro_replace_insn (contents + rel->r_offset,
3005 insn_mask_X1_no_dest_no_srca,
3006 insn_tls_ie_lw_X1);
3007 continue;
3008 break;
3009 default:
3010 break;
3011 }
3012
3013 switch (r_type)
3014 {
3015 case R_TILEPRO_IMM16_X0_GOT:
3016 case R_TILEPRO_IMM16_X1_GOT:
3017 case R_TILEPRO_IMM16_X0_GOT_LO:
3018 case R_TILEPRO_IMM16_X1_GOT_LO:
3019 case R_TILEPRO_IMM16_X0_GOT_HI:
3020 case R_TILEPRO_IMM16_X1_GOT_HI:
3021 case R_TILEPRO_IMM16_X0_GOT_HA:
3022 case R_TILEPRO_IMM16_X1_GOT_HA:
3023 /* Relocation is to the entry for this symbol in the global
3024 offset table. */
3025 if (htab->elf.sgot == NULL)
3026 abort ();
3027
3028 if (h != NULL)
3029 {
3030 bfd_boolean dyn;
3031
3032 off = h->got.offset;
3033 BFD_ASSERT (off != (bfd_vma) -1);
3034 dyn = elf_hash_table (info)->dynamic_sections_created;
3035
3036 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3037 || (info->shared
3038 && SYMBOL_REFERENCES_LOCAL (info, h)))
3039 {
3040 /* This is actually a static link, or it is a
3041 -Bsymbolic link and the symbol is defined
3042 locally, or the symbol was forced to be local
3043 because of a version file. We must initialize
3044 this entry in the global offset table. Since the
3045 offset must always be a multiple
3046 of 4 for 32-bit, we use the least significant bit
3047 to record whether we have initialized it already.
3048
3049 When doing a dynamic link, we create a .rela.got
3050 relocation entry to initialize the value. This
3051 is done in the finish_dynamic_symbol routine. */
3052 if ((off & 1) != 0)
3053 off &= ~1;
3054 else
3055 {
3056 bfd_put_32 (output_bfd, relocation,
3057 htab->elf.sgot->contents + off);
3058 h->got.offset |= 1;
3059 }
3060 }
3061 else
3062 unresolved_reloc = FALSE;
3063 }
3064 else
3065 {
3066 BFD_ASSERT (local_got_offsets != NULL
3067 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3068
3069 off = local_got_offsets[r_symndx];
3070
3071 /* The offset must always be a multiple of 4 on 32-bit.
3072 We use the least significant bit to record
3073 whether we have already processed this entry. */
3074 if ((off & 1) != 0)
3075 off &= ~1;
3076 else
3077 {
3078 if (info->shared)
3079 {
3080 asection *s;
3081 Elf_Internal_Rela outrel;
3082
3083 /* We need to generate a R_TILEPRO_RELATIVE reloc
3084 for the dynamic linker. */
3085 s = htab->elf.srelgot;
3086 BFD_ASSERT (s != NULL);
3087
3088 outrel.r_offset = (htab->elf.sgot->output_section->vma
3089 + htab->elf.sgot->output_offset
3090 + off);
3091 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3092 outrel.r_addend = relocation;
3093 relocation = 0;
3094 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
3095 }
3096
3097 bfd_put_32 (output_bfd, relocation,
3098 htab->elf.sgot->contents + off);
3099 local_got_offsets[r_symndx] |= 1;
3100 }
3101 }
3102 relocation = htab->elf.sgot->output_offset + off - got_base;
3103 break;
3104
3105 case R_TILEPRO_JOFFLONG_X1_PLT:
3106 /* Relocation is to the entry for this symbol in the
3107 procedure linkage table. */
3108 BFD_ASSERT (h != NULL);
3109
3110 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3111 {
3112 /* We didn't make a PLT entry for this symbol. This
3113 happens when statically linking PIC code, or when
3114 using -Bsymbolic. */
3115 break;
3116 }
3117
3118 relocation = (htab->elf.splt->output_section->vma
3119 + htab->elf.splt->output_offset
3120 + h->plt.offset);
3121 unresolved_reloc = FALSE;
3122 break;
3123
3124 case R_TILEPRO_32_PCREL:
3125 case R_TILEPRO_16_PCREL:
3126 case R_TILEPRO_8_PCREL:
3127 case R_TILEPRO_IMM16_X0_PCREL:
3128 case R_TILEPRO_IMM16_X1_PCREL:
3129 case R_TILEPRO_IMM16_X0_LO_PCREL:
3130 case R_TILEPRO_IMM16_X1_LO_PCREL:
3131 case R_TILEPRO_IMM16_X0_HI_PCREL:
3132 case R_TILEPRO_IMM16_X1_HI_PCREL:
3133 case R_TILEPRO_IMM16_X0_HA_PCREL:
3134 case R_TILEPRO_IMM16_X1_HA_PCREL:
3135 if (h != NULL
3136 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3137 break;
3138 /* Fall through. */
3139 case R_TILEPRO_32:
3140 case R_TILEPRO_16:
3141 case R_TILEPRO_8:
3142 case R_TILEPRO_LO16:
3143 case R_TILEPRO_HI16:
3144 case R_TILEPRO_HA16:
3145 case R_TILEPRO_COPY:
3146 case R_TILEPRO_GLOB_DAT:
3147 case R_TILEPRO_JMP_SLOT:
3148 case R_TILEPRO_RELATIVE:
3149 case R_TILEPRO_BROFF_X1:
3150 case R_TILEPRO_JOFFLONG_X1:
3151 case R_TILEPRO_IMM8_X0:
3152 case R_TILEPRO_IMM8_Y0:
3153 case R_TILEPRO_IMM8_X1:
3154 case R_TILEPRO_IMM8_Y1:
3155 case R_TILEPRO_DEST_IMM8_X1:
3156 case R_TILEPRO_MT_IMM15_X1:
3157 case R_TILEPRO_MF_IMM15_X1:
3158 case R_TILEPRO_IMM16_X0:
3159 case R_TILEPRO_IMM16_X1:
3160 case R_TILEPRO_IMM16_X0_LO:
3161 case R_TILEPRO_IMM16_X1_LO:
3162 case R_TILEPRO_IMM16_X0_HI:
3163 case R_TILEPRO_IMM16_X1_HI:
3164 case R_TILEPRO_IMM16_X0_HA:
3165 case R_TILEPRO_IMM16_X1_HA:
3166 case R_TILEPRO_MMSTART_X0:
3167 case R_TILEPRO_MMEND_X0:
3168 case R_TILEPRO_MMSTART_X1:
3169 case R_TILEPRO_MMEND_X1:
3170 case R_TILEPRO_SHAMT_X0:
3171 case R_TILEPRO_SHAMT_X1:
3172 case R_TILEPRO_SHAMT_Y0:
3173 case R_TILEPRO_SHAMT_Y1:
3174 if ((input_section->flags & SEC_ALLOC) == 0)
3175 break;
3176
3177 if ((info->shared
3178 && (h == NULL
3179 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3180 || h->root.type != bfd_link_hash_undefweak)
3181 && (! howto->pc_relative
3182 || !SYMBOL_CALLS_LOCAL (info, h)))
3183 || (!info->shared
3184 && h != NULL
3185 && h->dynindx != -1
3186 && !h->non_got_ref
3187 && ((h->def_dynamic
3188 && !h->def_regular)
3189 || h->root.type == bfd_link_hash_undefweak
3190 || h->root.type == bfd_link_hash_undefined)))
3191 {
3192 Elf_Internal_Rela outrel;
3193 bfd_boolean skip, relocate = FALSE;
3194
3195 /* When generating a shared object, these relocations
3196 are copied into the output file to be resolved at run
3197 time. */
3198
3199 BFD_ASSERT (sreloc != NULL);
3200
3201 skip = FALSE;
3202
3203 outrel.r_offset =
3204 _bfd_elf_section_offset (output_bfd, info, input_section,
3205 rel->r_offset);
3206 if (outrel.r_offset == (bfd_vma) -1)
3207 skip = TRUE;
3208 else if (outrel.r_offset == (bfd_vma) -2)
3209 skip = TRUE, relocate = TRUE;
3210 outrel.r_offset += (input_section->output_section->vma
3211 + input_section->output_offset);
3212
3213 switch (r_type)
3214 {
3215 case R_TILEPRO_32_PCREL:
3216 case R_TILEPRO_16_PCREL:
3217 case R_TILEPRO_8_PCREL:
3218 /* If the symbol is not dynamic, we should not keep
3219 a dynamic relocation. But an .rela.* slot has been
3220 allocated for it, output R_TILEPRO_NONE.
3221 FIXME: Add code tracking needed dynamic relocs as
3222 e.g. i386 has. */
3223 if (h->dynindx == -1)
3224 skip = TRUE, relocate = TRUE;
3225 break;
3226 }
3227
3228 if (skip)
3229 memset (&outrel, 0, sizeof outrel);
3230 /* h->dynindx may be -1 if the symbol was marked to
3231 become local. */
3232 else if (h != NULL &&
3233 h->dynindx != -1
3234 && (! is_plt
3235 || !info->shared
3236 || !SYMBOLIC_BIND (info, h)
3237 || !h->def_regular))
3238 {
3239 BFD_ASSERT (h->dynindx != -1);
3240 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3241 outrel.r_addend = rel->r_addend;
3242 }
3243 else
3244 {
3245 if (r_type == R_TILEPRO_32)
3246 {
3247 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3248 outrel.r_addend = relocation + rel->r_addend;
3249 }
3250 else
3251 {
3252 long indx;
3253
3254 outrel.r_addend = relocation + rel->r_addend;
3255
3256 if (is_plt)
3257 sec = htab->elf.splt;
3258
3259 if (bfd_is_abs_section (sec))
3260 indx = 0;
3261 else if (sec == NULL || sec->owner == NULL)
3262 {
3263 bfd_set_error (bfd_error_bad_value);
3264 return FALSE;
3265 }
3266 else
3267 {
3268 asection *osec;
3269
3270 /* We are turning this relocation into one
3271 against a section symbol. It would be
3272 proper to subtract the symbol's value,
3273 osec->vma, from the emitted reloc addend,
3274 but ld.so expects buggy relocs. */
3275 osec = sec->output_section;
3276 indx = elf_section_data (osec)->dynindx;
3277
3278 if (indx == 0)
3279 {
3280 osec = htab->elf.text_index_section;
3281 indx = elf_section_data (osec)->dynindx;
3282 }
3283
3284 /* FIXME: we really should be able to link non-pic
3285 shared libraries. */
3286 if (indx == 0)
3287 {
3288 BFD_FAIL ();
3289 (*_bfd_error_handler)
3290 (_("%B: probably compiled without -fPIC?"),
3291 input_bfd);
3292 bfd_set_error (bfd_error_bad_value);
3293 return FALSE;
3294 }
3295 }
3296
3297 outrel.r_info = ELF32_R_INFO (indx, r_type);
3298 }
3299 }
3300
3301 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3302
3303 /* This reloc will be computed at runtime, so there's no
3304 need to do anything now. */
3305 if (! relocate)
3306 continue;
3307 }
3308 break;
3309
3310 case R_TILEPRO_IMM16_X0_TLS_LE:
3311 case R_TILEPRO_IMM16_X1_TLS_LE:
3312 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3313 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3314 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3315 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3316 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3317 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3318 if (info->shared)
3319 {
3320 Elf_Internal_Rela outrel;
3321 bfd_boolean skip;
3322
3323 BFD_ASSERT (sreloc != NULL);
3324 skip = FALSE;
3325 outrel.r_offset =
3326 _bfd_elf_section_offset (output_bfd, info, input_section,
3327 rel->r_offset);
3328 if (outrel.r_offset == (bfd_vma) -1)
3329 skip = TRUE;
3330 else if (outrel.r_offset == (bfd_vma) -2)
3331 skip = TRUE;
3332 outrel.r_offset += (input_section->output_section->vma
3333 + input_section->output_offset);
3334 if (skip)
3335 memset (&outrel, 0, sizeof outrel);
3336 else
3337 {
3338 outrel.r_info = ELF32_R_INFO (0, r_type);
3339 outrel.r_addend = relocation - dtpoff_base (info)
3340 + rel->r_addend;
3341 }
3342
3343 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3344 continue;
3345 }
3346 relocation = tpoff (info, relocation);
3347 break;
3348
3349 case R_TILEPRO_IMM16_X0_TLS_GD:
3350 case R_TILEPRO_IMM16_X1_TLS_GD:
3351 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3352 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3353 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3354 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3355 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3356 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3357 case R_TILEPRO_IMM16_X0_TLS_IE:
3358 case R_TILEPRO_IMM16_X1_TLS_IE:
3359 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3360 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3361 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3362 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3363 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3364 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3365 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3366 tls_type = GOT_UNKNOWN;
3367 if (h == NULL && local_got_offsets)
3368 tls_type
3369 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3370 else if (h != NULL)
3371 {
3372 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3373 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3374 r_type = tilepro_tls_translate_to_le (r_type);
3375 }
3376 if (tls_type == GOT_TLS_IE)
3377 r_type = tilepro_tls_translate_to_ie (r_type);
3378
3379 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3380 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3381 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3382 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3383 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3384 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3385 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3386 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3387 {
3388 relocation = tpoff (info, relocation);
3389 break;
3390 }
3391
3392 if (h != NULL)
3393 {
3394 off = h->got.offset;
3395 h->got.offset |= 1;
3396 }
3397 else
3398 {
3399 BFD_ASSERT (local_got_offsets != NULL);
3400 off = local_got_offsets[r_symndx];
3401 local_got_offsets[r_symndx] |= 1;
3402 }
3403
3404 if (htab->elf.sgot == NULL)
3405 abort ();
3406
3407 if ((off & 1) != 0)
3408 off &= ~1;
3409 else
3410 {
3411 Elf_Internal_Rela outrel;
3412 int indx = 0;
3413 bfd_boolean need_relocs = FALSE;
3414
3415 if (htab->elf.srelgot == NULL)
3416 abort ();
3417
3418 if (h != NULL)
3419 {
3420 bfd_boolean dyn;
3421 dyn = htab->elf.dynamic_sections_created;
3422
3423 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3424 && (!info->shared
3425 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3426 {
3427 indx = h->dynindx;
3428 }
3429 }
3430
3431 /* The GOT entries have not been initialized yet. Do it
3432 now, and emit any relocations. */
3433 if ((info->shared || indx != 0)
3434 && (h == NULL
3435 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3436 || h->root.type != bfd_link_hash_undefweak))
3437 need_relocs = TRUE;
3438
3439 switch (r_type)
3440 {
3441 case R_TILEPRO_IMM16_X0_TLS_IE:
3442 case R_TILEPRO_IMM16_X1_TLS_IE:
3443 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3444 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3445 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3446 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3447 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3448 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3449 if (need_relocs) {
3450 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3451 outrel.r_offset = (htab->elf.sgot->output_section->vma
3452 + htab->elf.sgot->output_offset + off);
3453 outrel.r_addend = 0;
3454 if (indx == 0)
3455 outrel.r_addend = relocation - dtpoff_base (info);
3456 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3457 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3458 &outrel);
3459 } else {
3460 bfd_put_32 (output_bfd, tpoff (info, relocation),
3461 htab->elf.sgot->contents + off);
3462 }
3463 break;
3464
3465 case R_TILEPRO_IMM16_X0_TLS_GD:
3466 case R_TILEPRO_IMM16_X1_TLS_GD:
3467 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3468 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3469 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3470 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3471 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3472 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3473 if (need_relocs) {
3474 outrel.r_offset = (htab->elf.sgot->output_section->vma
3475 + htab->elf.sgot->output_offset + off);
3476 outrel.r_addend = 0;
3477 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3478 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3479 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3480 &outrel);
3481 if (indx == 0)
3482 {
3483 BFD_ASSERT (! unresolved_reloc);
3484 bfd_put_32 (output_bfd,
3485 relocation - dtpoff_base (info),
3486 (htab->elf.sgot->contents + off +
3487 TILEPRO_BYTES_PER_WORD));
3488 }
3489 else
3490 {
3491 bfd_put_32 (output_bfd, 0,
3492 (htab->elf.sgot->contents + off +
3493 TILEPRO_BYTES_PER_WORD));
3494 outrel.r_info = ELF32_R_INFO (indx,
3495 R_TILEPRO_TLS_DTPOFF32);
3496 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3497 tilepro_elf_append_rela_32 (output_bfd,
3498 htab->elf.srelgot, &outrel);
3499 }
3500 }
3501
3502 else {
3503 /* If we are not emitting relocations for a
3504 general dynamic reference, then we must be in a
3505 static link or an executable link with the
3506 symbol binding locally. Mark it as belonging
3507 to module 1, the executable. */
3508 bfd_put_32 (output_bfd, 1,
3509 htab->elf.sgot->contents + off );
3510 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3511 htab->elf.sgot->contents + off +
3512 TILEPRO_BYTES_PER_WORD);
3513 }
3514 break;
3515 }
3516 }
3517
3518 if (off >= (bfd_vma) -2)
3519 abort ();
3520
3521 relocation = htab->elf.sgot->output_offset + off - got_base;
3522 unresolved_reloc = FALSE;
3523 howto = tilepro_elf_howto_table + r_type;
3524 break;
3525
3526 default:
3527 break;
3528 }
3529
3530 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3531 because such sections are not SEC_ALLOC and thus ld.so will
3532 not process them. */
3533 if (unresolved_reloc
3534 && !((input_section->flags & SEC_DEBUGGING) != 0
3535 && h->def_dynamic)
3536 && _bfd_elf_section_offset (output_bfd, info, input_section,
3537 rel->r_offset) != (bfd_vma) -1)
3538 (*_bfd_error_handler)
3539 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3540 input_bfd,
3541 input_section,
3542 (long) rel->r_offset,
3543 howto->name,
3544 h->root.root.string);
3545
3546 r = bfd_reloc_continue;
3547
3548 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3549 * we will increment bit 16. The howto->rightshift takes care
3550 * of the rest for us. */
3551 switch (r_type)
3552 {
3553 case R_TILEPRO_HA16:
3554 case R_TILEPRO_IMM16_X0_HA:
3555 case R_TILEPRO_IMM16_X1_HA:
3556 case R_TILEPRO_IMM16_X0_HA_PCREL:
3557 case R_TILEPRO_IMM16_X1_HA_PCREL:
3558 case R_TILEPRO_IMM16_X0_GOT_HA:
3559 case R_TILEPRO_IMM16_X1_GOT_HA:
3560 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3561 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3562 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3563 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3564 relocation += 0x8000;
3565 break;
3566 }
3567
3568 /* Get the operand creation function, if any. */
3569 create_func = reloc_to_create_func[r_type];
3570 if (create_func == NULL)
3571 {
3572 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3573 contents, rel->r_offset,
3574 relocation, rel->r_addend);
3575 }
3576 else
3577 {
3578 if (howto->pc_relative)
3579 {
3580 relocation -=
3581 input_section->output_section->vma + input_section->output_offset;
3582 if (howto->pcrel_offset)
3583 relocation -= rel->r_offset;
3584 }
3585
3586 bfd_byte *data;
3587
3588 /* Add the relocation addend if any to the final target value */
3589 relocation += rel->r_addend;
3590
3591 /* Do basic range checking */
3592 r = bfd_check_overflow (howto->complain_on_overflow,
3593 howto->bitsize,
3594 howto->rightshift,
3595 32,
3596 relocation);
3597
3598 /*
3599 * Write the relocated value out into the raw section data.
3600 * Don't put a relocation out in the .rela section.
3601 */
3602 tilepro_bundle_bits mask = create_func(-1);
3603 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3604
3605 /* Only touch bytes while the mask is not 0, so we
3606 don't write to out of bounds memory if this is actually
3607 a 16-bit switch instruction. */
3608 for (data = contents + rel->r_offset; mask != 0; data++)
3609 {
3610 bfd_byte byte_mask = (bfd_byte)mask;
3611 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3612 mask >>= 8;
3613 value >>= 8;
3614 }
3615 }
3616
3617 if (r != bfd_reloc_ok)
3618 {
3619 const char *msg = NULL;
3620
3621 switch (r)
3622 {
3623 case bfd_reloc_overflow:
3624 r = info->callbacks->reloc_overflow
3625 (info, (h ? &h->root : NULL), name, howto->name,
3626 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3627 break;
3628
3629 case bfd_reloc_undefined:
3630 r = info->callbacks->undefined_symbol
3631 (info, name, input_bfd, input_section, rel->r_offset,
3632 TRUE);
3633 break;
3634
3635 case bfd_reloc_outofrange:
3636 msg = _("internal error: out of range error");
3637 break;
3638
3639 case bfd_reloc_notsupported:
3640 msg = _("internal error: unsupported relocation error");
3641 break;
3642
3643 case bfd_reloc_dangerous:
3644 msg = _("internal error: dangerous relocation");
3645 break;
3646
3647 default:
3648 msg = _("internal error: unknown error");
3649 break;
3650 }
3651
3652 if (msg)
3653 r = info->callbacks->warning
3654 (info, msg, name, input_bfd, input_section, rel->r_offset);
3655
3656 if (! r)
3657 return FALSE;
3658 }
3659 }
3660
3661 return TRUE;
3662 }
3663
3664 /* Finish up dynamic symbol handling. We set the contents of various
3665 dynamic sections here. */
3666
3667 static bfd_boolean
3668 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3669 struct bfd_link_info *info,
3670 struct elf_link_hash_entry *h,
3671 Elf_Internal_Sym *sym)
3672 {
3673 struct tilepro_elf_link_hash_table *htab;
3674
3675 htab = tilepro_elf_hash_table (info);
3676 BFD_ASSERT (htab != NULL);
3677
3678 if (h->plt.offset != (bfd_vma) -1)
3679 {
3680 asection *splt;
3681 asection *srela;
3682 asection *sgotplt;
3683 Elf_Internal_Rela rela;
3684 bfd_byte *loc;
3685 bfd_vma r_offset;
3686
3687 int rela_index;
3688
3689 /* This symbol has an entry in the PLT. Set it up. */
3690
3691 BFD_ASSERT (h->dynindx != -1);
3692
3693 splt = htab->elf.splt;
3694 srela = htab->elf.srelplt;
3695 sgotplt = htab->elf.sgotplt;
3696
3697 if (splt == NULL || srela == NULL)
3698 abort ();
3699
3700 /* Fill in the entry in the procedure linkage table. */
3701 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3702 &r_offset);
3703
3704 /* Fill in the entry in the global offset table, which initially points
3705 to the beginning of the plt. */
3706 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3707 sgotplt->contents + r_offset);
3708
3709 /* Fill in the entry in the .rela.plt section. */
3710 rela.r_offset = (sgotplt->output_section->vma
3711 + sgotplt->output_offset
3712 + r_offset);
3713 rela.r_addend = 0;
3714 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3715
3716 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3717 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3718
3719 if (!h->def_regular)
3720 {
3721 /* Mark the symbol as undefined, rather than as defined in
3722 the .plt section. Leave the value alone. */
3723 sym->st_shndx = SHN_UNDEF;
3724 /* If the symbol is weak, we do need to clear the value.
3725 Otherwise, the PLT entry would provide a definition for
3726 the symbol even if the symbol wasn't defined anywhere,
3727 and so the symbol would never be NULL. */
3728 if (!h->ref_regular_nonweak)
3729 sym->st_value = 0;
3730 }
3731 }
3732
3733 if (h->got.offset != (bfd_vma) -1
3734 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3735 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3736 {
3737 asection *sgot;
3738 asection *srela;
3739 Elf_Internal_Rela rela;
3740
3741 /* This symbol has an entry in the GOT. Set it up. */
3742
3743 sgot = htab->elf.sgot;
3744 srela = htab->elf.srelgot;
3745 BFD_ASSERT (sgot != NULL && srela != NULL);
3746
3747 rela.r_offset = (sgot->output_section->vma
3748 + sgot->output_offset
3749 + (h->got.offset &~ (bfd_vma) 1));
3750
3751 /* If this is a -Bsymbolic link, and the symbol is defined
3752 locally, we just want to emit a RELATIVE reloc. Likewise if
3753 the symbol was forced to be local because of a version file.
3754 The entry in the global offset table will already have been
3755 initialized in the relocate_section function. */
3756 if (info->shared
3757 && (info->symbolic || h->dynindx == -1)
3758 && h->def_regular)
3759 {
3760 asection *sec = h->root.u.def.section;
3761 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3762 rela.r_addend = (h->root.u.def.value
3763 + sec->output_section->vma
3764 + sec->output_offset);
3765 }
3766 else
3767 {
3768 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3769 rela.r_addend = 0;
3770 }
3771
3772 bfd_put_32 (output_bfd, 0,
3773 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3774 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3775 }
3776
3777 if (h->needs_copy)
3778 {
3779 asection *s;
3780 Elf_Internal_Rela rela;
3781
3782 /* This symbols needs a copy reloc. Set it up. */
3783 BFD_ASSERT (h->dynindx != -1);
3784
3785 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3786 ".rela.bss");
3787 BFD_ASSERT (s != NULL);
3788
3789 rela.r_offset = (h->root.u.def.value
3790 + h->root.u.def.section->output_section->vma
3791 + h->root.u.def.section->output_offset);
3792 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3793 rela.r_addend = 0;
3794 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3795 }
3796
3797 /* Mark some specially defined symbols as absolute. */
3798 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3799 || (h == htab->elf.hgot || h == htab->elf.hplt))
3800 sym->st_shndx = SHN_ABS;
3801
3802 return TRUE;
3803 }
3804
3805 /* Finish up the dynamic sections. */
3806
3807 static bfd_boolean
3808 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3809 bfd *dynobj, asection *sdyn,
3810 asection *splt ATTRIBUTE_UNUSED)
3811 {
3812 Elf32_External_Dyn *dyncon, *dynconend;
3813 struct tilepro_elf_link_hash_table *htab;
3814
3815 htab = tilepro_elf_hash_table (info);
3816 BFD_ASSERT (htab != NULL);
3817 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3818 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3819 for (; dyncon < dynconend; dyncon++)
3820 {
3821 Elf_Internal_Dyn dyn;
3822 asection *s;
3823
3824 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3825
3826 switch (dyn.d_tag)
3827 {
3828 case DT_PLTGOT:
3829 s = htab->elf.sgotplt;
3830 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3831 break;
3832 case DT_JMPREL:
3833 s = htab->elf.srelplt;
3834 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3835 break;
3836 case DT_PLTRELSZ:
3837 s = htab->elf.srelplt;
3838 dyn.d_un.d_val = s->size;
3839 break;
3840 default:
3841 continue;
3842 }
3843
3844 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3845 }
3846 return TRUE;
3847 }
3848
3849 static bfd_boolean
3850 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3851 struct bfd_link_info *info)
3852 {
3853 bfd *dynobj;
3854 asection *sdyn;
3855 struct tilepro_elf_link_hash_table *htab;
3856
3857 htab = tilepro_elf_hash_table (info);
3858 BFD_ASSERT (htab != NULL);
3859 dynobj = htab->elf.dynobj;
3860
3861 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3862
3863 if (elf_hash_table (info)->dynamic_sections_created)
3864 {
3865 asection *splt;
3866 bfd_boolean ret;
3867
3868 splt = bfd_get_section_by_name (dynobj, ".plt");
3869 BFD_ASSERT (splt != NULL && sdyn != NULL);
3870
3871 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3872
3873 if (ret != TRUE)
3874 return ret;
3875
3876 /* Fill in the first entry in the procedure linkage table. */
3877 if (splt->size > 0)
3878 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3879
3880 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3881 = PLT_ENTRY_SIZE;
3882 }
3883
3884 if (htab->elf.sgotplt)
3885 {
3886 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3887 {
3888 (*_bfd_error_handler)
3889 (_("discarded output section: `%A'"), htab->elf.sgotplt);
3890 return FALSE;
3891 }
3892
3893 if (htab->elf.sgotplt->size > 0)
3894 {
3895 /* Write the first two entries in .got.plt, needed for the dynamic
3896 linker. */
3897 bfd_put_32 (output_bfd, (bfd_vma) -1,
3898 htab->elf.sgotplt->contents);
3899 bfd_put_32 (output_bfd, (bfd_vma) 0,
3900 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3901 }
3902
3903 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3904 = GOT_ENTRY_SIZE;
3905 }
3906
3907 if (htab->elf.sgot)
3908 {
3909 if (htab->elf.sgot->size > 0)
3910 {
3911 /* Set the first entry in the global offset table to the address of
3912 the dynamic section. */
3913 bfd_vma val = (sdyn ?
3914 sdyn->output_section->vma + sdyn->output_offset :
3915 0);
3916 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3917 }
3918
3919 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3920 = GOT_ENTRY_SIZE;
3921 }
3922
3923 return TRUE;
3924 }
3925
3926 \f
3927
3928 /* Return address for Ith PLT stub in section PLT, for relocation REL
3929 or (bfd_vma) -1 if it should not be included. */
3930
3931 static bfd_vma
3932 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3933 const arelent *rel ATTRIBUTE_UNUSED)
3934 {
3935 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
3936 }
3937
3938 static enum elf_reloc_type_class
3939 tilepro_reloc_type_class (const Elf_Internal_Rela *rela)
3940 {
3941 switch ((int) ELF32_R_TYPE (rela->r_info))
3942 {
3943 case R_TILEPRO_RELATIVE:
3944 return reloc_class_relative;
3945 case R_TILEPRO_JMP_SLOT:
3946 return reloc_class_plt;
3947 case R_TILEPRO_COPY:
3948 return reloc_class_copy;
3949 default:
3950 return reloc_class_normal;
3951 }
3952 }
3953
3954 static int
3955 tilepro_additional_program_headers (bfd *abfd,
3956 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3957 {
3958 /* Each .intrpt section specified by the user adds another PT_LOAD
3959 header since the sections are discontiguous. */
3960 static const char intrpt_sections[4][9] =
3961 {
3962 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3963 };
3964 int count = 0;
3965 int i;
3966
3967 for (i = 0; i < 4; i++)
3968 {
3969 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3970 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3971 ++count;
3972 }
3973
3974 /* Add four "padding" headers in to leave room in case a custom linker
3975 script does something fancy. Otherwise ld complains that it ran
3976 out of program headers and refuses to link. */
3977 count += 4;
3978
3979 return count;
3980 }
3981
3982 #define ELF_ARCH bfd_arch_tilepro
3983 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3984 #define ELF_MACHINE_CODE EM_TILEPRO
3985 #define ELF_MAXPAGESIZE 0x10000
3986 #define ELF_COMMONPAGESIZE 0x10000
3987
3988 #define TARGET_LITTLE_SYM bfd_elf32_tilepro_vec
3989 #define TARGET_LITTLE_NAME "elf32-tilepro"
3990
3991 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3992
3993 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3994 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3995 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3996
3997 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3998 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3999 #define elf_backend_check_relocs tilepro_elf_check_relocs
4000 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
4001 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
4002 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
4003 #define elf_backend_relocate_section tilepro_elf_relocate_section
4004 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
4005 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
4006 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
4007 #define elf_backend_gc_sweep_hook tilepro_elf_gc_sweep_hook
4008 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
4009 #define elf_info_to_howto_rel NULL
4010 #define elf_info_to_howto tilepro_info_to_howto_rela
4011 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
4012 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
4013 #define elf_backend_additional_program_headers tilepro_additional_program_headers
4014
4015 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4016
4017 #define elf_backend_can_gc_sections 1
4018 #define elf_backend_can_refcount 1
4019 #define elf_backend_want_got_plt 1
4020 #define elf_backend_plt_readonly 1
4021 /* Align PLT mod 64 byte L2 line size. */
4022 #define elf_backend_plt_alignment 6
4023 #define elf_backend_want_plt_sym 1
4024 #define elf_backend_got_header_size GOT_ENTRY_SIZE
4025 #define elf_backend_rela_normal 1
4026 #define elf_backend_default_execstack 0
4027
4028 #include "elf32-target.h"
GDB Binutils - Deliverables
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