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Delete duplicate target short-cuts to dynamic sections
[thirdparty/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2016 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/tilepro.h"
26 #include "opcode/tilepro.h"
27 #include "libiberty.h"
28 #include "elf32-tilepro.h"
29
30 #define TILEPRO_BYTES_PER_WORD 4
31
32 static reloc_howto_type tilepro_elf_howto_table [] =
33 {
34 /* This reloc does nothing. */
35 HOWTO (R_TILEPRO_NONE, /* type */
36 0, /* rightshift */
37 3, /* size (0 = byte, 1 = short, 2 = long) */
38 0, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_dont, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* The TILEPro linker needs to keep track of the number of relocs that it
683 decides to copy as dynamic relocs in check_relocs for each symbol.
684 This is so that it can later discard them if they are found to be
685 unnecessary. We store the information in a field extending the
686 regular ELF linker hash table. */
687
688 struct tilepro_elf_dyn_relocs
689 {
690 struct tilepro_elf_dyn_relocs *next;
691
692 /* The input section of the reloc. */
693 asection *sec;
694
695 /* Total number of relocs copied for the input section. */
696 bfd_size_type count;
697
698 /* Number of pc-relative relocs copied for the input section. */
699 bfd_size_type pc_count;
700 };
701
702 /* TILEPRO ELF linker hash entry. */
703
704 struct tilepro_elf_link_hash_entry
705 {
706 struct elf_link_hash_entry elf;
707
708 /* Track dynamic relocs copied for this symbol. */
709 struct tilepro_elf_dyn_relocs *dyn_relocs;
710
711 #define GOT_UNKNOWN 0
712 #define GOT_NORMAL 1
713 #define GOT_TLS_GD 2
714 #define GOT_TLS_IE 4
715 unsigned char tls_type;
716 };
717
718 #define tilepro_elf_hash_entry(ent) \
719 ((struct tilepro_elf_link_hash_entry *)(ent))
720
721 struct _bfd_tilepro_elf_obj_tdata
722 {
723 struct elf_obj_tdata root;
724
725 /* tls_type for each local got entry. */
726 char *local_got_tls_type;
727 };
728
729 #define _bfd_tilepro_elf_tdata(abfd) \
730 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
731
732 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
733 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
734
735 #define is_tilepro_elf(bfd) \
736 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
737 && elf_tdata (bfd) != NULL \
738 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
739
740 /* Allocate TILEPro ELF private object data. */
741
742 static bfd_boolean
743 tilepro_elf_mkobject (bfd *abfd)
744 {
745 return bfd_elf_allocate_object (abfd,
746 sizeof (struct _bfd_tilepro_elf_obj_tdata),
747 TILEPRO_ELF_DATA);
748 }
749
750 #include "elf/common.h"
751 #include "elf/internal.h"
752
753 struct tilepro_elf_link_hash_table
754 {
755 struct elf_link_hash_table elf;
756
757 /* Short-cuts to get to dynamic linker sections. */
758 asection *sdynbss;
759 asection *srelbss;
760
761 /* Small local sym to section mapping cache. */
762 struct sym_cache sym_cache;
763 };
764
765 /* Get the Tilepro ELF linker hash table from a link_info structure. */
766 #define tilepro_elf_hash_table(p) \
767 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
768 == TILEPRO_ELF_DATA \
769 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
770
771 static reloc_howto_type *
772 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
773 bfd_reloc_code_real_type code)
774 {
775 unsigned int i;
776
777 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
778 {
779 const reloc_map * entry;
780
781 entry = tilepro_reloc_map + i;
782
783 if (entry->bfd_reloc_val == code)
784 return entry->table + (entry->tilepro_reloc_val
785 - entry->table[0].type);
786 }
787
788 return NULL;
789 }
790
791 static reloc_howto_type *
792 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
793 const char *r_name)
794 {
795 unsigned int i;
796
797 for (i = 0;
798 i < (sizeof (tilepro_elf_howto_table)
799 / sizeof (tilepro_elf_howto_table[0]));
800 i++)
801 if (tilepro_elf_howto_table[i].name != NULL
802 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
803 return &tilepro_elf_howto_table[i];
804
805 return NULL;
806 }
807
808 /* Set the howto pointer for an TILEPro ELF reloc. */
809
810 static void
811 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
812 arelent * cache_ptr,
813 Elf_Internal_Rela * dst)
814 {
815 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
816
817 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
818 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
819 else if (r_type - R_TILEPRO_GNU_VTINHERIT
820 <= (unsigned int) R_TILEPRO_GNU_VTENTRY)
821 cache_ptr->howto
822 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
823 else
824 abort ();
825 }
826
827 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
828
829 static const tilepro_create_func reloc_to_create_func[] =
830 {
831 /* The first fourteen relocation types don't correspond to operands */
832 NULL,
833 NULL,
834 NULL,
835 NULL,
836 NULL,
837 NULL,
838 NULL,
839 NULL,
840 NULL,
841 NULL,
842 NULL,
843 NULL,
844 NULL,
845 NULL,
846
847 /* The remaining relocations are used for immediate operands */
848 create_BrOff_X1,
849 create_JOffLong_X1,
850 create_JOffLong_X1,
851 create_Imm8_X0,
852 create_Imm8_Y0,
853 create_Imm8_X1,
854 create_Imm8_Y1,
855 create_MT_Imm15_X1,
856 create_MF_Imm15_X1,
857 create_Imm16_X0,
858 create_Imm16_X1,
859 create_Imm16_X0,
860 create_Imm16_X1,
861 create_Imm16_X0,
862 create_Imm16_X1,
863 create_Imm16_X0,
864 create_Imm16_X1,
865 create_Imm16_X0,
866 create_Imm16_X1,
867 create_Imm16_X0,
868 create_Imm16_X1,
869 create_Imm16_X0,
870 create_Imm16_X1,
871 create_Imm16_X0,
872 create_Imm16_X1,
873 create_Imm16_X0,
874 create_Imm16_X1,
875 create_Imm16_X0,
876 create_Imm16_X1,
877 create_Imm16_X0,
878 create_Imm16_X1,
879 create_Imm16_X0,
880 create_Imm16_X1,
881 create_MMStart_X0,
882 create_MMEnd_X0,
883 create_MMStart_X1,
884 create_MMEnd_X1,
885 create_ShAmt_X0,
886 create_ShAmt_X1,
887 create_ShAmt_Y0,
888 create_ShAmt_Y1,
889
890 create_Dest_Imm8_X1,
891 NULL,
892 NULL,
893 NULL,
894 NULL,
895 NULL,
896 NULL,
897 NULL,
898 NULL,
899 NULL,
900 NULL,
901
902 create_Imm16_X0,
903 create_Imm16_X1,
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908 create_Imm16_X0,
909 create_Imm16_X1,
910 create_Imm16_X0,
911 create_Imm16_X1,
912 create_Imm16_X0,
913 create_Imm16_X1,
914 create_Imm16_X0,
915 create_Imm16_X1,
916 create_Imm16_X0,
917 create_Imm16_X1,
918
919 NULL,
920 NULL,
921 NULL,
922
923 create_Imm16_X0,
924 create_Imm16_X1,
925 create_Imm16_X0,
926 create_Imm16_X1,
927 create_Imm16_X0,
928 create_Imm16_X1,
929 create_Imm16_X0,
930 create_Imm16_X1,
931 };
932
933 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
934
935 /* Support for core dump NOTE sections. */
936
937 static bfd_boolean
938 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
939 {
940 int offset;
941 size_t size;
942
943 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
944 return FALSE;
945
946 /* pr_cursig */
947 elf_tdata (abfd)->core->signal =
948 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
949
950 /* pr_pid */
951 elf_tdata (abfd)->core->pid =
952 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
953
954 /* pr_reg */
955 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
956 size = TILEPRO_GREGSET_T_SIZE;
957
958 /* Make a ".reg/999" section. */
959 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
960 size, note->descpos + offset);
961 }
962
963 static bfd_boolean
964 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
965 {
966 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
967 return FALSE;
968
969 elf_tdata (abfd)->core->program
970 = _bfd_elfcore_strndup (abfd,
971 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
972 16);
973 elf_tdata (abfd)->core->command
974 = _bfd_elfcore_strndup (abfd,
975 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
976 ELF_PR_PSARGS_SIZE);
977
978
979 /* Note that for some reason, a spurious space is tacked
980 onto the end of the args in some (at least one anyway)
981 implementations, so strip it off if it exists. */
982 {
983 char *command = elf_tdata (abfd)->core->command;
984 int n = strlen (command);
985
986 if (0 < n && command[n - 1] == ' ')
987 command[n - 1] = '\0';
988 }
989
990 return TRUE;
991 }
992
993
994 static void
995 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
996 {
997 Elf32_External_Rela *loc32;
998
999 loc32 = (Elf32_External_Rela *) s->contents;
1000 loc32 += s->reloc_count++;
1001 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
1002 }
1003
1004 /* PLT/GOT stuff */
1005
1006 /* The procedure linkage table starts with the following header:
1007
1008 {
1009 rli r29, r29, 16
1010 lwadd r28, r27, 4
1011 }
1012 lw r27, r27
1013 {
1014 info 10 ## SP not offset, return PC in LR
1015 jr r27
1016 }
1017
1018 Subsequent entries are the following, jumping to the header at the end:
1019
1020 lnk r28
1021 1:
1022 {
1023 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1024 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1025 }
1026 {
1027 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1028 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1029 }
1030 {
1031 auli r29, zero, MY_PLT_INDEX
1032 lw r28, r28
1033 }
1034 {
1035 info 10 ## SP not offset, return PC in LR
1036 jr r28
1037 }
1038
1039 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1040 16 bits as an unsigned offset; if we use the low bits we would get an
1041 unwanted sign extension. The PLT header then rotates the index to get the
1042 right value, before calling the resolution routine. This computation can
1043 fit in unused bundle slots so it's free.
1044
1045 This code sequence lets the code at at the start of the PLT determine
1046 which PLT entry was executed by examining 'r29'.
1047
1048 Note that MY_PLT_INDEX skips over the header entries, so the first
1049 actual jump table entry has index zero.
1050 */
1051
1052 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1053 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1054
1055 #define PLT_HEADER_SIZE \
1056 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1057 #define PLT_ENTRY_SIZE \
1058 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1059
1060 /* The size in bytes of an entry in the global offset table. */
1061
1062 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1063
1064 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1065
1066
1067 static const bfd_byte
1068 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1069 {
1070 0x5d, 0x07, 0x03, 0x70,
1071 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1072 0x00, 0x50, 0xba, 0x6d,
1073 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1074 0xff, 0xaf, 0x10, 0x50,
1075 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1076 };
1077
1078 static const bfd_byte
1079 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1080 {
1081 0x00, 0x50, 0x16, 0x70,
1082 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1083 0x1c, 0x07, 0x00, 0xa0,
1084 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1085 0xdd, 0x0f, 0x00, 0x30,
1086 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1087 0xff, 0xaf, 0x10, 0x50,
1088 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1089 0x00, 0x00, 0x00, 0x00,
1090 0x00, 0x00, 0x00, 0x00,
1091 };
1092
1093 static const bfd_byte
1094 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1095 {
1096 0x00, 0x50, 0x16, 0x70,
1097 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1098 0x1c, 0x07, 0x00, 0xb0,
1099 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1100 0x1c, 0x07, 0x00, 0xa0,
1101 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1102 0xdd, 0x0f, 0x00, 0x30,
1103 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1104 0xff, 0xaf, 0x10, 0x50,
1105 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1106 };
1107
1108 static bfd_vma
1109 tilepro_ha16(bfd_vma vma)
1110 {
1111 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1112 }
1113
1114 static int
1115 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1116 bfd_vma *r_offset)
1117 {
1118 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1119 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1120 tilepro_bundle_bits *pc;
1121
1122 /* Compute the distance from the got entry to the lnk. */
1123 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1124 + sgotplt->output_offset
1125 + got_offset
1126 - splt->output_section->vma
1127 - splt->output_offset
1128 - offset
1129 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1130
1131 /* Compute the distance to GOTPLT[0]. */
1132 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1133
1134 /* Check whether we can use the short plt entry with 16-bit offset. */
1135 bfd_boolean short_plt_entry =
1136 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1137
1138 /* Copy the plt entry template. */
1139 memcpy (splt->contents + offset,
1140 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1141 PLT_ENTRY_SIZE);
1142
1143 /* Write the immediate offsets. */
1144 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1145 pc++;
1146
1147 if (!short_plt_entry)
1148 {
1149 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1150 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1151 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1152 }
1153
1154 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1155 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1156 *pc++ |= create_Imm16_X0 (dist_got_entry)
1157 | create_Imm16_X1 (dist_got0);
1158
1159 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1160 *pc |= create_Imm16_X0 (plt_index);
1161
1162 /* Set the relocation offset. */
1163 *r_offset = got_offset;
1164
1165 return plt_index;
1166 }
1167
1168 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1169
1170
1171 /* Create an entry in an TILEPro ELF linker hash table. */
1172
1173 static struct bfd_hash_entry *
1174 link_hash_newfunc (struct bfd_hash_entry *entry,
1175 struct bfd_hash_table *table, const char *string)
1176 {
1177 /* Allocate the structure if it has not already been allocated by a
1178 subclass. */
1179 if (entry == NULL)
1180 {
1181 entry =
1182 bfd_hash_allocate (table,
1183 sizeof (struct tilepro_elf_link_hash_entry));
1184 if (entry == NULL)
1185 return entry;
1186 }
1187
1188 /* Call the allocation method of the superclass. */
1189 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1190 if (entry != NULL)
1191 {
1192 struct tilepro_elf_link_hash_entry *eh;
1193
1194 eh = (struct tilepro_elf_link_hash_entry *) entry;
1195 eh->dyn_relocs = NULL;
1196 eh->tls_type = GOT_UNKNOWN;
1197 }
1198
1199 return entry;
1200 }
1201
1202 /* Create a TILEPRO ELF linker hash table. */
1203
1204 static struct bfd_link_hash_table *
1205 tilepro_elf_link_hash_table_create (bfd *abfd)
1206 {
1207 struct tilepro_elf_link_hash_table *ret;
1208 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1209
1210 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1211 if (ret == NULL)
1212 return NULL;
1213
1214 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1215 sizeof (struct tilepro_elf_link_hash_entry),
1216 TILEPRO_ELF_DATA))
1217 {
1218 free (ret);
1219 return NULL;
1220 }
1221
1222 return &ret->elf.root;
1223 }
1224
1225 /* Create the .got section. */
1226
1227 static bfd_boolean
1228 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1229 {
1230 flagword flags;
1231 asection *s, *s_got;
1232 struct elf_link_hash_entry *h;
1233 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1234 struct elf_link_hash_table *htab = elf_hash_table (info);
1235
1236 /* This function may be called more than once. */
1237 if (htab->sgot != NULL)
1238 return TRUE;
1239
1240 flags = bed->dynamic_sec_flags;
1241
1242 s = bfd_make_section_with_flags (abfd,
1243 (bed->rela_plts_and_copies_p
1244 ? ".rela.got" : ".rel.got"),
1245 (bed->dynamic_sec_flags
1246 | SEC_READONLY));
1247 if (s == NULL
1248 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1249 return FALSE;
1250 htab->srelgot = s;
1251
1252 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1253 if (s == NULL
1254 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1255 return FALSE;
1256 htab->sgot = s;
1257
1258 /* The first bit of the global offset table is the header. */
1259 s->size += bed->got_header_size;
1260
1261 if (bed->want_got_plt)
1262 {
1263 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1264 if (s == NULL
1265 || !bfd_set_section_alignment (abfd, s,
1266 bed->s->log_file_align))
1267 return FALSE;
1268 htab->sgotplt = s;
1269
1270 /* Reserve room for the header. */
1271 s->size += GOTPLT_HEADER_SIZE;
1272 }
1273
1274 if (bed->want_got_sym)
1275 {
1276 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1277 section. We don't do this in the linker script because we don't want
1278 to define the symbol if we are not creating a global offset
1279 table. */
1280 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1281 "_GLOBAL_OFFSET_TABLE_");
1282 elf_hash_table (info)->hgot = h;
1283 if (h == NULL)
1284 return FALSE;
1285 }
1286
1287 return TRUE;
1288 }
1289
1290 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1291 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1292 hash table. */
1293
1294 static bfd_boolean
1295 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1296 struct bfd_link_info *info)
1297 {
1298 struct tilepro_elf_link_hash_table *htab;
1299
1300 htab = tilepro_elf_hash_table (info);
1301 BFD_ASSERT (htab != NULL);
1302
1303 if (!tilepro_elf_create_got_section (dynobj, info))
1304 return FALSE;
1305
1306 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1307 return FALSE;
1308
1309 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
1310 if (!bfd_link_pic (info))
1311 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
1312
1313 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1314 || (!bfd_link_pic (info) && !htab->srelbss))
1315 abort ();
1316
1317 return TRUE;
1318 }
1319
1320 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1321
1322 static void
1323 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1324 struct elf_link_hash_entry *dir,
1325 struct elf_link_hash_entry *ind)
1326 {
1327 struct tilepro_elf_link_hash_entry *edir, *eind;
1328
1329 edir = (struct tilepro_elf_link_hash_entry *) dir;
1330 eind = (struct tilepro_elf_link_hash_entry *) ind;
1331
1332 if (eind->dyn_relocs != NULL)
1333 {
1334 if (edir->dyn_relocs != NULL)
1335 {
1336 struct tilepro_elf_dyn_relocs **pp;
1337 struct tilepro_elf_dyn_relocs *p;
1338
1339 /* Add reloc counts against the indirect sym to the direct sym
1340 list. Merge any entries against the same section. */
1341 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1342 {
1343 struct tilepro_elf_dyn_relocs *q;
1344
1345 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1346 if (q->sec == p->sec)
1347 {
1348 q->pc_count += p->pc_count;
1349 q->count += p->count;
1350 *pp = p->next;
1351 break;
1352 }
1353 if (q == NULL)
1354 pp = &p->next;
1355 }
1356 *pp = edir->dyn_relocs;
1357 }
1358
1359 edir->dyn_relocs = eind->dyn_relocs;
1360 eind->dyn_relocs = NULL;
1361 }
1362
1363 if (ind->root.type == bfd_link_hash_indirect
1364 && dir->got.refcount <= 0)
1365 {
1366 edir->tls_type = eind->tls_type;
1367 eind->tls_type = GOT_UNKNOWN;
1368 }
1369 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1370 }
1371
1372 static int
1373 tilepro_tls_translate_to_le (int r_type)
1374 {
1375 switch (r_type)
1376 {
1377 case R_TILEPRO_IMM16_X0_TLS_GD:
1378 case R_TILEPRO_IMM16_X0_TLS_IE:
1379 return R_TILEPRO_IMM16_X0_TLS_LE;
1380
1381 case R_TILEPRO_IMM16_X1_TLS_GD:
1382 case R_TILEPRO_IMM16_X1_TLS_IE:
1383 return R_TILEPRO_IMM16_X1_TLS_LE;
1384
1385 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1386 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1387 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1388
1389 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1390 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1391 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1392
1393 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1394 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1395 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1396
1397 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1398 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1399 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1400
1401 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1402 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1403 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1404
1405 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1406 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1407 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1408 }
1409 return r_type;
1410 }
1411
1412 static int
1413 tilepro_tls_translate_to_ie (int r_type)
1414 {
1415 switch (r_type)
1416 {
1417 case R_TILEPRO_IMM16_X0_TLS_GD:
1418 case R_TILEPRO_IMM16_X0_TLS_IE:
1419 return R_TILEPRO_IMM16_X0_TLS_IE;
1420
1421 case R_TILEPRO_IMM16_X1_TLS_GD:
1422 case R_TILEPRO_IMM16_X1_TLS_IE:
1423 return R_TILEPRO_IMM16_X1_TLS_IE;
1424
1425 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1426 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1427 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1428
1429 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1430 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1431 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1432
1433 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1434 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1435 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1436
1437 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1438 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1439 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1440
1441 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1442 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1443 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1444
1445 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1446 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1447 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1448 }
1449 return r_type;
1450 }
1451
1452 static int
1453 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1454 int is_local)
1455 {
1456 if (bfd_link_pic (info))
1457 return r_type;
1458
1459 if (is_local)
1460 return tilepro_tls_translate_to_le (r_type);
1461 else
1462 return tilepro_tls_translate_to_ie (r_type);
1463 }
1464
1465 /* Look through the relocs for a section during the first phase, and
1466 allocate space in the global offset table or procedure linkage
1467 table. */
1468
1469 static bfd_boolean
1470 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1471 asection *sec, const Elf_Internal_Rela *relocs)
1472 {
1473 struct tilepro_elf_link_hash_table *htab;
1474 Elf_Internal_Shdr *symtab_hdr;
1475 struct elf_link_hash_entry **sym_hashes;
1476 const Elf_Internal_Rela *rel;
1477 const Elf_Internal_Rela *rel_end;
1478 asection *sreloc;
1479 int num_relocs;
1480
1481 if (bfd_link_relocatable (info))
1482 return TRUE;
1483
1484 htab = tilepro_elf_hash_table (info);
1485 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1486 sym_hashes = elf_sym_hashes (abfd);
1487
1488 sreloc = NULL;
1489
1490 num_relocs = sec->reloc_count;
1491
1492 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1493
1494 if (htab->elf.dynobj == NULL)
1495 htab->elf.dynobj = abfd;
1496
1497 rel_end = relocs + num_relocs;
1498 for (rel = relocs; rel < rel_end; rel++)
1499 {
1500 unsigned int r_type;
1501 unsigned long r_symndx;
1502 struct elf_link_hash_entry *h;
1503 int tls_type;
1504
1505 r_symndx = ELF32_R_SYM (rel->r_info);
1506 r_type = ELF32_R_TYPE (rel->r_info);
1507
1508 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1509 {
1510 /* xgettext:c-format */
1511 _bfd_error_handler (_("%B: bad symbol index: %d"),
1512 abfd, r_symndx);
1513 return FALSE;
1514 }
1515
1516 if (r_symndx < symtab_hdr->sh_info)
1517 h = NULL;
1518 else
1519 {
1520 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1521 while (h->root.type == bfd_link_hash_indirect
1522 || h->root.type == bfd_link_hash_warning)
1523 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1524
1525 /* PR15323, ref flags aren't set for references in the same
1526 object. */
1527 h->root.non_ir_ref = 1;
1528 }
1529
1530 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1531 switch (r_type)
1532 {
1533 case R_TILEPRO_IMM16_X0_TLS_LE:
1534 case R_TILEPRO_IMM16_X1_TLS_LE:
1535 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1536 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1537 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1538 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1539 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1540 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1541 if (bfd_link_pic (info))
1542 goto r_tilepro_plt32;
1543 break;
1544
1545 case R_TILEPRO_IMM16_X0_TLS_GD:
1546 case R_TILEPRO_IMM16_X1_TLS_GD:
1547 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1548 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1549 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1550 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1551 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1552 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1553 BFD_ASSERT (bfd_link_pic (info));
1554 tls_type = GOT_TLS_GD;
1555 goto have_got_reference;
1556
1557 case R_TILEPRO_IMM16_X0_TLS_IE:
1558 case R_TILEPRO_IMM16_X1_TLS_IE:
1559 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1560 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1561 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1562 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1563 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1564 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1565 tls_type = GOT_TLS_IE;
1566 if (bfd_link_pic (info))
1567 info->flags |= DF_STATIC_TLS;
1568 goto have_got_reference;
1569
1570 case R_TILEPRO_IMM16_X0_GOT:
1571 case R_TILEPRO_IMM16_X1_GOT:
1572 case R_TILEPRO_IMM16_X0_GOT_LO:
1573 case R_TILEPRO_IMM16_X1_GOT_LO:
1574 case R_TILEPRO_IMM16_X0_GOT_HI:
1575 case R_TILEPRO_IMM16_X1_GOT_HI:
1576 case R_TILEPRO_IMM16_X0_GOT_HA:
1577 case R_TILEPRO_IMM16_X1_GOT_HA:
1578 tls_type = GOT_NORMAL;
1579 /* Fall Through */
1580
1581 have_got_reference:
1582 /* This symbol requires a global offset table entry. */
1583 {
1584 int old_tls_type;
1585
1586 if (h != NULL)
1587 {
1588 h->got.refcount += 1;
1589 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1590 }
1591 else
1592 {
1593 bfd_signed_vma *local_got_refcounts;
1594
1595 /* This is a global offset table entry for a local symbol. */
1596 local_got_refcounts = elf_local_got_refcounts (abfd);
1597 if (local_got_refcounts == NULL)
1598 {
1599 bfd_size_type size;
1600
1601 size = symtab_hdr->sh_info;
1602 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1603 local_got_refcounts = ((bfd_signed_vma *)
1604 bfd_zalloc (abfd, size));
1605 if (local_got_refcounts == NULL)
1606 return FALSE;
1607 elf_local_got_refcounts (abfd) = local_got_refcounts;
1608 _bfd_tilepro_elf_local_got_tls_type (abfd)
1609 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1610 }
1611 local_got_refcounts[r_symndx] += 1;
1612 old_tls_type =
1613 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1614 }
1615
1616 /* If a TLS symbol is accessed using IE at least once,
1617 there is no point to use dynamic model for it. */
1618 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1619 && (old_tls_type != GOT_TLS_GD
1620 || tls_type != GOT_TLS_IE))
1621 {
1622 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1623 tls_type = old_tls_type;
1624 else
1625 {
1626 _bfd_error_handler
1627 /* xgettext:c-format */
1628 (_("%B: `%s' accessed both as normal and thread local symbol"),
1629 abfd, h ? h->root.root.string : "<local>");
1630 return FALSE;
1631 }
1632 }
1633
1634 if (old_tls_type != tls_type)
1635 {
1636 if (h != NULL)
1637 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1638 else
1639 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1640 tls_type;
1641 }
1642 }
1643
1644 if (htab->elf.sgot == NULL)
1645 {
1646 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1647 return FALSE;
1648 }
1649 break;
1650
1651 case R_TILEPRO_TLS_GD_CALL:
1652 if (bfd_link_pic (info))
1653 {
1654 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1655 against __tls_get_addr. */
1656 struct bfd_link_hash_entry *bh = NULL;
1657 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1658 "__tls_get_addr", 0,
1659 bfd_und_section_ptr, 0,
1660 NULL, FALSE, FALSE,
1661 &bh))
1662 return FALSE;
1663 h = (struct elf_link_hash_entry *) bh;
1664 }
1665 else
1666 break;
1667 /* Fall through */
1668
1669 case R_TILEPRO_JOFFLONG_X1_PLT:
1670 /* This symbol requires a procedure linkage table entry. We
1671 actually build the entry in adjust_dynamic_symbol,
1672 because this might be a case of linking PIC code without
1673 linking in any dynamic objects, in which case we don't
1674 need to generate a procedure linkage table after all. */
1675
1676 if (h != NULL)
1677 {
1678 h->needs_plt = 1;
1679 h->plt.refcount += 1;
1680 }
1681 break;
1682
1683 case R_TILEPRO_32_PCREL:
1684 case R_TILEPRO_16_PCREL:
1685 case R_TILEPRO_8_PCREL:
1686 case R_TILEPRO_IMM16_X0_PCREL:
1687 case R_TILEPRO_IMM16_X1_PCREL:
1688 case R_TILEPRO_IMM16_X0_LO_PCREL:
1689 case R_TILEPRO_IMM16_X1_LO_PCREL:
1690 case R_TILEPRO_IMM16_X0_HI_PCREL:
1691 case R_TILEPRO_IMM16_X1_HI_PCREL:
1692 case R_TILEPRO_IMM16_X0_HA_PCREL:
1693 case R_TILEPRO_IMM16_X1_HA_PCREL:
1694 if (h != NULL)
1695 h->non_got_ref = 1;
1696
1697 if (h != NULL
1698 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1699 break;
1700 /* Fall through. */
1701
1702 case R_TILEPRO_32:
1703 case R_TILEPRO_16:
1704 case R_TILEPRO_8:
1705 case R_TILEPRO_LO16:
1706 case R_TILEPRO_HI16:
1707 case R_TILEPRO_HA16:
1708 case R_TILEPRO_COPY:
1709 case R_TILEPRO_GLOB_DAT:
1710 case R_TILEPRO_JMP_SLOT:
1711 case R_TILEPRO_RELATIVE:
1712 case R_TILEPRO_BROFF_X1:
1713 case R_TILEPRO_JOFFLONG_X1:
1714 case R_TILEPRO_IMM8_X0:
1715 case R_TILEPRO_IMM8_Y0:
1716 case R_TILEPRO_IMM8_X1:
1717 case R_TILEPRO_IMM8_Y1:
1718 case R_TILEPRO_DEST_IMM8_X1:
1719 case R_TILEPRO_MT_IMM15_X1:
1720 case R_TILEPRO_MF_IMM15_X1:
1721 case R_TILEPRO_IMM16_X0:
1722 case R_TILEPRO_IMM16_X1:
1723 case R_TILEPRO_IMM16_X0_LO:
1724 case R_TILEPRO_IMM16_X1_LO:
1725 case R_TILEPRO_IMM16_X0_HI:
1726 case R_TILEPRO_IMM16_X1_HI:
1727 case R_TILEPRO_IMM16_X0_HA:
1728 case R_TILEPRO_IMM16_X1_HA:
1729 case R_TILEPRO_MMSTART_X0:
1730 case R_TILEPRO_MMEND_X0:
1731 case R_TILEPRO_MMSTART_X1:
1732 case R_TILEPRO_MMEND_X1:
1733 case R_TILEPRO_SHAMT_X0:
1734 case R_TILEPRO_SHAMT_X1:
1735 case R_TILEPRO_SHAMT_Y0:
1736 case R_TILEPRO_SHAMT_Y1:
1737 if (h != NULL)
1738 h->non_got_ref = 1;
1739
1740 r_tilepro_plt32:
1741 if (h != NULL && !bfd_link_pic (info))
1742 {
1743 /* We may need a .plt entry if the function this reloc
1744 refers to is in a shared lib. */
1745 h->plt.refcount += 1;
1746 }
1747
1748 /* If we are creating a shared library, and this is a reloc
1749 against a global symbol, or a non PC relative reloc
1750 against a local symbol, then we need to copy the reloc
1751 into the shared library. However, if we are linking with
1752 -Bsymbolic, we do not need to copy a reloc against a
1753 global symbol which is defined in an object we are
1754 including in the link (i.e., DEF_REGULAR is set). At
1755 this point we have not seen all the input files, so it is
1756 possible that DEF_REGULAR is not set now but will be set
1757 later (it is never cleared). In case of a weak definition,
1758 DEF_REGULAR may be cleared later by a strong definition in
1759 a shared library. We account for that possibility below by
1760 storing information in the relocs_copied field of the hash
1761 table entry. A similar situation occurs when creating
1762 shared libraries and symbol visibility changes render the
1763 symbol local.
1764
1765 If on the other hand, we are creating an executable, we
1766 may need to keep relocations for symbols satisfied by a
1767 dynamic library if we manage to avoid copy relocs for the
1768 symbol. */
1769 if ((bfd_link_pic (info)
1770 && (sec->flags & SEC_ALLOC) != 0
1771 && (! tilepro_elf_howto_table[r_type].pc_relative
1772 || (h != NULL
1773 && (! info->symbolic
1774 || h->root.type == bfd_link_hash_defweak
1775 || !h->def_regular))))
1776 || (!bfd_link_pic (info)
1777 && (sec->flags & SEC_ALLOC) != 0
1778 && h != NULL
1779 && (h->root.type == bfd_link_hash_defweak
1780 || !h->def_regular)))
1781 {
1782 struct tilepro_elf_dyn_relocs *p;
1783 struct tilepro_elf_dyn_relocs **head;
1784
1785 /* When creating a shared object, we must copy these
1786 relocs into the output file. We create a reloc
1787 section in dynobj and make room for the reloc. */
1788 if (sreloc == NULL)
1789 {
1790 sreloc = _bfd_elf_make_dynamic_reloc_section
1791 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1792
1793 if (sreloc == NULL)
1794 return FALSE;
1795 }
1796
1797 /* If this is a global symbol, we count the number of
1798 relocations we need for this symbol. */
1799 if (h != NULL)
1800 head =
1801 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1802 else
1803 {
1804 /* Track dynamic relocs needed for local syms too.
1805 We really need local syms available to do this
1806 easily. Oh well. */
1807
1808 asection *s;
1809 void *vpp;
1810 Elf_Internal_Sym *isym;
1811
1812 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1813 abfd, r_symndx);
1814 if (isym == NULL)
1815 return FALSE;
1816
1817 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1818 if (s == NULL)
1819 s = sec;
1820
1821 vpp = &elf_section_data (s)->local_dynrel;
1822 head = (struct tilepro_elf_dyn_relocs **) vpp;
1823 }
1824
1825 p = *head;
1826 if (p == NULL || p->sec != sec)
1827 {
1828 bfd_size_type amt = sizeof *p;
1829 p = ((struct tilepro_elf_dyn_relocs *)
1830 bfd_alloc (htab->elf.dynobj, amt));
1831 if (p == NULL)
1832 return FALSE;
1833 p->next = *head;
1834 *head = p;
1835 p->sec = sec;
1836 p->count = 0;
1837 p->pc_count = 0;
1838 }
1839
1840 p->count += 1;
1841 if (tilepro_elf_howto_table[r_type].pc_relative)
1842 p->pc_count += 1;
1843 }
1844
1845 break;
1846
1847 case R_TILEPRO_GNU_VTINHERIT:
1848 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1849 return FALSE;
1850 break;
1851
1852 case R_TILEPRO_GNU_VTENTRY:
1853 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1854 return FALSE;
1855 break;
1856
1857 default:
1858 break;
1859 }
1860 }
1861
1862 return TRUE;
1863 }
1864
1865 \f
1866 static asection *
1867 tilepro_elf_gc_mark_hook (asection *sec,
1868 struct bfd_link_info *info,
1869 Elf_Internal_Rela *rel,
1870 struct elf_link_hash_entry *h,
1871 Elf_Internal_Sym *sym)
1872 {
1873 if (h != NULL)
1874 {
1875 switch (ELF32_R_TYPE (rel->r_info))
1876 {
1877 case R_TILEPRO_GNU_VTINHERIT:
1878 case R_TILEPRO_GNU_VTENTRY:
1879 return NULL;
1880 }
1881 }
1882
1883 /* FIXME: The test here, in check_relocs and in relocate_section
1884 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1885 if (bfd_link_pic (info))
1886 {
1887 switch (ELF32_R_TYPE (rel->r_info))
1888 {
1889 case R_TILEPRO_TLS_GD_CALL:
1890 /* This reloc implicitly references __tls_get_addr. We know
1891 another reloc will reference the same symbol as the one
1892 on this reloc, so the real symbol and section will be
1893 gc marked when processing the other reloc. That lets
1894 us handle __tls_get_addr here. */
1895 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1896 FALSE, FALSE, TRUE);
1897 BFD_ASSERT (h != NULL);
1898 h->mark = 1;
1899 if (h->u.weakdef != NULL)
1900 h->u.weakdef->mark = 1;
1901 sym = NULL;
1902 }
1903 }
1904
1905 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1906 }
1907
1908 /* Update the got entry reference counts for the section being removed. */
1909 static bfd_boolean
1910 tilepro_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1911 asection *sec, const Elf_Internal_Rela *relocs)
1912 {
1913 struct tilepro_elf_link_hash_table *htab;
1914 Elf_Internal_Shdr *symtab_hdr;
1915 struct elf_link_hash_entry **sym_hashes;
1916 bfd_signed_vma *local_got_refcounts;
1917 const Elf_Internal_Rela *rel, *relend;
1918
1919 if (bfd_link_relocatable (info))
1920 return TRUE;
1921
1922 BFD_ASSERT (is_tilepro_elf (abfd) || sec->reloc_count == 0);
1923
1924 elf_section_data (sec)->local_dynrel = NULL;
1925
1926 htab = tilepro_elf_hash_table (info);
1927 BFD_ASSERT (htab != NULL);
1928 symtab_hdr = &elf_symtab_hdr (abfd);
1929 sym_hashes = elf_sym_hashes (abfd);
1930 local_got_refcounts = elf_local_got_refcounts (abfd);
1931
1932 relend = relocs + sec->reloc_count;
1933 for (rel = relocs; rel < relend; rel++)
1934 {
1935 unsigned long r_symndx;
1936 unsigned int r_type;
1937 struct elf_link_hash_entry *h = NULL;
1938
1939 r_symndx = ELF32_R_SYM (rel->r_info);
1940 if (r_symndx >= symtab_hdr->sh_info)
1941 {
1942 struct tilepro_elf_link_hash_entry *eh;
1943 struct tilepro_elf_dyn_relocs **pp;
1944 struct tilepro_elf_dyn_relocs *p;
1945
1946 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1947 while (h->root.type == bfd_link_hash_indirect
1948 || h->root.type == bfd_link_hash_warning)
1949 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1950 eh = (struct tilepro_elf_link_hash_entry *) h;
1951 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1952 if (p->sec == sec)
1953 {
1954 /* Everything must go for SEC. */
1955 *pp = p->next;
1956 break;
1957 }
1958 }
1959
1960 r_type = ELF32_R_TYPE (rel->r_info);
1961 r_type = tilepro_elf_tls_transition (info, r_type, h != NULL);
1962 switch (r_type)
1963 {
1964 case R_TILEPRO_IMM16_X0_GOT:
1965 case R_TILEPRO_IMM16_X1_GOT:
1966 case R_TILEPRO_IMM16_X0_GOT_LO:
1967 case R_TILEPRO_IMM16_X1_GOT_LO:
1968 case R_TILEPRO_IMM16_X0_GOT_HI:
1969 case R_TILEPRO_IMM16_X1_GOT_HI:
1970 case R_TILEPRO_IMM16_X0_GOT_HA:
1971 case R_TILEPRO_IMM16_X1_GOT_HA:
1972 case R_TILEPRO_IMM16_X0_TLS_GD:
1973 case R_TILEPRO_IMM16_X1_TLS_GD:
1974 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1975 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1976 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1977 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1978 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1979 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1980 case R_TILEPRO_IMM16_X0_TLS_IE:
1981 case R_TILEPRO_IMM16_X1_TLS_IE:
1982 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1983 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1984 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1985 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1986 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1987 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1988 if (h != NULL)
1989 {
1990 if (h->got.refcount > 0)
1991 h->got.refcount--;
1992 }
1993 else
1994 {
1995 if (local_got_refcounts &&
1996 local_got_refcounts[r_symndx] > 0)
1997 local_got_refcounts[r_symndx]--;
1998 }
1999 break;
2000
2001 case R_TILEPRO_32_PCREL:
2002 case R_TILEPRO_16_PCREL:
2003 case R_TILEPRO_8_PCREL:
2004 case R_TILEPRO_IMM16_X0_PCREL:
2005 case R_TILEPRO_IMM16_X1_PCREL:
2006 case R_TILEPRO_IMM16_X0_LO_PCREL:
2007 case R_TILEPRO_IMM16_X1_LO_PCREL:
2008 case R_TILEPRO_IMM16_X0_HI_PCREL:
2009 case R_TILEPRO_IMM16_X1_HI_PCREL:
2010 case R_TILEPRO_IMM16_X0_HA_PCREL:
2011 case R_TILEPRO_IMM16_X1_HA_PCREL:
2012 if (h != NULL
2013 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2014 break;
2015 /* Fall through. */
2016
2017 case R_TILEPRO_32:
2018 case R_TILEPRO_16:
2019 case R_TILEPRO_8:
2020 case R_TILEPRO_LO16:
2021 case R_TILEPRO_HI16:
2022 case R_TILEPRO_HA16:
2023 case R_TILEPRO_COPY:
2024 case R_TILEPRO_GLOB_DAT:
2025 case R_TILEPRO_JMP_SLOT:
2026 case R_TILEPRO_RELATIVE:
2027 case R_TILEPRO_BROFF_X1:
2028 case R_TILEPRO_JOFFLONG_X1:
2029 case R_TILEPRO_IMM8_X0:
2030 case R_TILEPRO_IMM8_Y0:
2031 case R_TILEPRO_IMM8_X1:
2032 case R_TILEPRO_IMM8_Y1:
2033 case R_TILEPRO_DEST_IMM8_X1:
2034 case R_TILEPRO_MT_IMM15_X1:
2035 case R_TILEPRO_MF_IMM15_X1:
2036 case R_TILEPRO_IMM16_X0:
2037 case R_TILEPRO_IMM16_X1:
2038 case R_TILEPRO_IMM16_X0_LO:
2039 case R_TILEPRO_IMM16_X1_LO:
2040 case R_TILEPRO_IMM16_X0_HI:
2041 case R_TILEPRO_IMM16_X1_HI:
2042 case R_TILEPRO_IMM16_X0_HA:
2043 case R_TILEPRO_IMM16_X1_HA:
2044 case R_TILEPRO_MMSTART_X0:
2045 case R_TILEPRO_MMEND_X0:
2046 case R_TILEPRO_MMSTART_X1:
2047 case R_TILEPRO_MMEND_X1:
2048 case R_TILEPRO_SHAMT_X0:
2049 case R_TILEPRO_SHAMT_X1:
2050 case R_TILEPRO_SHAMT_Y0:
2051 case R_TILEPRO_SHAMT_Y1:
2052 if (bfd_link_pic (info))
2053 break;
2054 /* Fall through. */
2055
2056 case R_TILEPRO_JOFFLONG_X1_PLT:
2057 if (h != NULL)
2058 {
2059 if (h->plt.refcount > 0)
2060 h->plt.refcount--;
2061 }
2062 break;
2063
2064 default:
2065 break;
2066 }
2067 }
2068
2069 return TRUE;
2070 }
2071
2072 /* Adjust a symbol defined by a dynamic object and referenced by a
2073 regular object. The current definition is in some section of the
2074 dynamic object, but we're not including those sections. We have to
2075 change the definition to something the rest of the link can
2076 understand. */
2077
2078 static bfd_boolean
2079 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2080 struct elf_link_hash_entry *h)
2081 {
2082 struct tilepro_elf_link_hash_table *htab;
2083 struct tilepro_elf_link_hash_entry * eh;
2084 struct tilepro_elf_dyn_relocs *p;
2085 asection *s;
2086
2087 htab = tilepro_elf_hash_table (info);
2088 BFD_ASSERT (htab != NULL);
2089
2090 /* Make sure we know what is going on here. */
2091 BFD_ASSERT (htab->elf.dynobj != NULL
2092 && (h->needs_plt
2093 || h->u.weakdef != NULL
2094 || (h->def_dynamic
2095 && h->ref_regular
2096 && !h->def_regular)));
2097
2098 /* If this is a function, put it in the procedure linkage table. We
2099 will fill in the contents of the procedure linkage table later
2100 (although we could actually do it here). */
2101 if (h->type == STT_FUNC || h->needs_plt)
2102 {
2103 if (h->plt.refcount <= 0
2104 || SYMBOL_CALLS_LOCAL (info, h)
2105 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2106 && h->root.type == bfd_link_hash_undefweak))
2107 {
2108 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
2109 reloc in an input file, but the symbol was never referred
2110 to by a dynamic object, or if all references were garbage
2111 collected. In such a case, we don't actually need to build
2112 a procedure linkage table, and we can just do a
2113 R_TILEPRO_JOFFLONG_X1 relocation instead. */
2114 h->plt.offset = (bfd_vma) -1;
2115 h->needs_plt = 0;
2116 }
2117
2118 return TRUE;
2119 }
2120 else
2121 h->plt.offset = (bfd_vma) -1;
2122
2123 /* If this is a weak symbol, and there is a real definition, the
2124 processor independent code will have arranged for us to see the
2125 real definition first, and we can just use the same value. */
2126 if (h->u.weakdef != NULL)
2127 {
2128 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2129 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2130 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2131 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2132 return TRUE;
2133 }
2134
2135 /* This is a reference to a symbol defined by a dynamic object which
2136 is not a function. */
2137
2138 /* If we are creating a shared library, we must presume that the
2139 only references to the symbol are via the global offset table.
2140 For such cases we need not do anything here; the relocations will
2141 be handled correctly by relocate_section. */
2142 if (bfd_link_pic (info))
2143 return TRUE;
2144
2145 /* If there are no references to this symbol that do not use the
2146 GOT, we don't need to generate a copy reloc. */
2147 if (!h->non_got_ref)
2148 return TRUE;
2149
2150 /* If -z nocopyreloc was given, we won't generate them either. */
2151 if (info->nocopyreloc)
2152 {
2153 h->non_got_ref = 0;
2154 return TRUE;
2155 }
2156
2157 eh = (struct tilepro_elf_link_hash_entry *) h;
2158 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2159 {
2160 s = p->sec->output_section;
2161 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2162 break;
2163 }
2164
2165 /* If we didn't find any dynamic relocs in read-only sections, then
2166 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2167 if (p == NULL)
2168 {
2169 h->non_got_ref = 0;
2170 return TRUE;
2171 }
2172
2173 /* We must allocate the symbol in our .dynbss section, which will
2174 become part of the .bss section of the executable. There will be
2175 an entry for this symbol in the .dynsym section. The dynamic
2176 object will contain position independent code, so all references
2177 from the dynamic object to this symbol will go through the global
2178 offset table. The dynamic linker will use the .dynsym entry to
2179 determine the address it must put in the global offset table, so
2180 both the dynamic object and the regular object will refer to the
2181 same memory location for the variable. */
2182
2183 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
2184 to copy the initial value out of the dynamic object and into the
2185 runtime process image. We need to remember the offset into the
2186 .rel.bss section we are going to use. */
2187 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2188 {
2189 htab->srelbss->size += TILEPRO_ELF_RELA_BYTES;
2190 h->needs_copy = 1;
2191 }
2192
2193 return _bfd_elf_adjust_dynamic_copy (info, h, htab->sdynbss);
2194 }
2195
2196 /* Allocate space in .plt, .got and associated reloc sections for
2197 dynamic relocs. */
2198
2199 static bfd_boolean
2200 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2201 {
2202 struct bfd_link_info *info;
2203 struct tilepro_elf_link_hash_table *htab;
2204 struct tilepro_elf_link_hash_entry *eh;
2205 struct tilepro_elf_dyn_relocs *p;
2206
2207 if (h->root.type == bfd_link_hash_indirect)
2208 return TRUE;
2209
2210 info = (struct bfd_link_info *) inf;
2211 htab = tilepro_elf_hash_table (info);
2212 BFD_ASSERT (htab != NULL);
2213
2214 if (htab->elf.dynamic_sections_created
2215 && h->plt.refcount > 0)
2216 {
2217 /* Make sure this symbol is output as a dynamic symbol.
2218 Undefined weak syms won't yet be marked as dynamic. */
2219 if (h->dynindx == -1
2220 && !h->forced_local)
2221 {
2222 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2223 return FALSE;
2224 }
2225
2226 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
2227 {
2228 asection *s = htab->elf.splt;
2229
2230 /* Allocate room for the header. */
2231 if (s->size == 0)
2232 {
2233 s->size = PLT_ENTRY_SIZE;
2234 }
2235
2236 h->plt.offset = s->size;
2237
2238 /* If this symbol is not defined in a regular file, and we are
2239 not generating a shared library, then set the symbol to this
2240 location in the .plt. This is required to make function
2241 pointers compare as equal between the normal executable and
2242 the shared library. */
2243 if (! bfd_link_pic (info)
2244 && !h->def_regular)
2245 {
2246 h->root.u.def.section = s;
2247 h->root.u.def.value = h->plt.offset;
2248 }
2249
2250 /* Make room for this entry. */
2251 s->size += PLT_ENTRY_SIZE;
2252
2253 /* We also need to make an entry in the .got.plt section. */
2254 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2255
2256 /* We also need to make an entry in the .rela.plt section. */
2257 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2258 }
2259 else
2260 {
2261 h->plt.offset = (bfd_vma) -1;
2262 h->needs_plt = 0;
2263 }
2264 }
2265 else
2266 {
2267 h->plt.offset = (bfd_vma) -1;
2268 h->needs_plt = 0;
2269 }
2270
2271 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2272 requiring no TLS entry. */
2273 if (h->got.refcount > 0
2274 && !bfd_link_pic (info)
2275 && h->dynindx == -1
2276 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2277 h->got.offset = (bfd_vma) -1;
2278 else if (h->got.refcount > 0)
2279 {
2280 asection *s;
2281 bfd_boolean dyn;
2282 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2283
2284 /* Make sure this symbol is output as a dynamic symbol.
2285 Undefined weak syms won't yet be marked as dynamic. */
2286 if (h->dynindx == -1
2287 && !h->forced_local)
2288 {
2289 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2290 return FALSE;
2291 }
2292
2293 s = htab->elf.sgot;
2294 h->got.offset = s->size;
2295 s->size += TILEPRO_BYTES_PER_WORD;
2296 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2297 if (tls_type == GOT_TLS_GD)
2298 s->size += TILEPRO_BYTES_PER_WORD;
2299 dyn = htab->elf.dynamic_sections_created;
2300 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2301 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2302 global. */
2303 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2304 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2305 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2306 bfd_link_pic (info),
2307 h))
2308 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2309 }
2310 else
2311 h->got.offset = (bfd_vma) -1;
2312
2313 eh = (struct tilepro_elf_link_hash_entry *) h;
2314 if (eh->dyn_relocs == NULL)
2315 return TRUE;
2316
2317 /* In the shared -Bsymbolic case, discard space allocated for
2318 dynamic pc-relative relocs against symbols which turn out to be
2319 defined in regular objects. For the normal shared case, discard
2320 space for pc-relative relocs that have become local due to symbol
2321 visibility changes. */
2322
2323 if (bfd_link_pic (info))
2324 {
2325 if (SYMBOL_CALLS_LOCAL (info, h))
2326 {
2327 struct tilepro_elf_dyn_relocs **pp;
2328
2329 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2330 {
2331 p->count -= p->pc_count;
2332 p->pc_count = 0;
2333 if (p->count == 0)
2334 *pp = p->next;
2335 else
2336 pp = &p->next;
2337 }
2338 }
2339
2340 /* Also discard relocs on undefined weak syms with non-default
2341 visibility. */
2342 if (eh->dyn_relocs != NULL
2343 && h->root.type == bfd_link_hash_undefweak)
2344 {
2345 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2346 eh->dyn_relocs = NULL;
2347
2348 /* Make sure undefined weak symbols are output as a dynamic
2349 symbol in PIEs. */
2350 else if (h->dynindx == -1
2351 && !h->forced_local)
2352 {
2353 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2354 return FALSE;
2355 }
2356 }
2357 }
2358 else
2359 {
2360 /* For the non-shared case, discard space for relocs against
2361 symbols which turn out to need copy relocs or are not
2362 dynamic. */
2363
2364 if (!h->non_got_ref
2365 && ((h->def_dynamic
2366 && !h->def_regular)
2367 || (htab->elf.dynamic_sections_created
2368 && (h->root.type == bfd_link_hash_undefweak
2369 || h->root.type == bfd_link_hash_undefined))))
2370 {
2371 /* Make sure this symbol is output as a dynamic symbol.
2372 Undefined weak syms won't yet be marked as dynamic. */
2373 if (h->dynindx == -1
2374 && !h->forced_local)
2375 {
2376 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2377 return FALSE;
2378 }
2379
2380 /* If that succeeded, we know we'll be keeping all the
2381 relocs. */
2382 if (h->dynindx != -1)
2383 goto keep;
2384 }
2385
2386 eh->dyn_relocs = NULL;
2387
2388 keep: ;
2389 }
2390
2391 /* Finally, allocate space. */
2392 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2393 {
2394 asection *sreloc = elf_section_data (p->sec)->sreloc;
2395 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2396 }
2397
2398 return TRUE;
2399 }
2400
2401 /* Find any dynamic relocs that apply to read-only sections. */
2402
2403 static bfd_boolean
2404 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2405 {
2406 struct tilepro_elf_link_hash_entry *eh;
2407 struct tilepro_elf_dyn_relocs *p;
2408
2409 eh = (struct tilepro_elf_link_hash_entry *) h;
2410 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2411 {
2412 asection *s = p->sec->output_section;
2413
2414 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2415 {
2416 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2417
2418 info->flags |= DF_TEXTREL;
2419
2420 /* Not an error, just cut short the traversal. */
2421 return FALSE;
2422 }
2423 }
2424 return TRUE;
2425 }
2426
2427 /* Return true if the dynamic symbol for a given section should be
2428 omitted when creating a shared library. */
2429
2430 static bfd_boolean
2431 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2432 struct bfd_link_info *info,
2433 asection *p)
2434 {
2435 /* We keep the .got section symbol so that explicit relocations
2436 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2437 can be turned into relocations against the .got symbol. */
2438 if (strcmp (p->name, ".got") == 0)
2439 return FALSE;
2440
2441 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2442 }
2443
2444 /* Set the sizes of the dynamic sections. */
2445
2446 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2447
2448 static bfd_boolean
2449 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2450 struct bfd_link_info *info)
2451 {
2452 (void)output_bfd;
2453
2454 struct tilepro_elf_link_hash_table *htab;
2455 bfd *dynobj;
2456 asection *s;
2457 bfd *ibfd;
2458
2459 htab = tilepro_elf_hash_table (info);
2460 BFD_ASSERT (htab != NULL);
2461 dynobj = htab->elf.dynobj;
2462 BFD_ASSERT (dynobj != NULL);
2463
2464 if (elf_hash_table (info)->dynamic_sections_created)
2465 {
2466 /* Set the contents of the .interp section to the interpreter. */
2467 if (bfd_link_executable (info) && !info->nointerp)
2468 {
2469 s = bfd_get_linker_section (dynobj, ".interp");
2470 BFD_ASSERT (s != NULL);
2471 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2472 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2473 }
2474 }
2475
2476 /* Set up .got offsets for local syms, and space for local dynamic
2477 relocs. */
2478 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2479 {
2480 bfd_signed_vma *local_got;
2481 bfd_signed_vma *end_local_got;
2482 char *local_tls_type;
2483 bfd_size_type locsymcount;
2484 Elf_Internal_Shdr *symtab_hdr;
2485 asection *srel;
2486
2487 if (! is_tilepro_elf (ibfd))
2488 continue;
2489
2490 for (s = ibfd->sections; s != NULL; s = s->next)
2491 {
2492 struct tilepro_elf_dyn_relocs *p;
2493
2494 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2495 {
2496 if (!bfd_is_abs_section (p->sec)
2497 && bfd_is_abs_section (p->sec->output_section))
2498 {
2499 /* Input section has been discarded, either because
2500 it is a copy of a linkonce section or due to
2501 linker script /DISCARD/, so we'll be discarding
2502 the relocs too. */
2503 }
2504 else if (p->count != 0)
2505 {
2506 srel = elf_section_data (p->sec)->sreloc;
2507 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2508 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2509 info->flags |= DF_TEXTREL;
2510 }
2511 }
2512 }
2513
2514 local_got = elf_local_got_refcounts (ibfd);
2515 if (!local_got)
2516 continue;
2517
2518 symtab_hdr = &elf_symtab_hdr (ibfd);
2519 locsymcount = symtab_hdr->sh_info;
2520 end_local_got = local_got + locsymcount;
2521 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2522 s = htab->elf.sgot;
2523 srel = htab->elf.srelgot;
2524 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2525 {
2526 if (*local_got > 0)
2527 {
2528 *local_got = s->size;
2529 s->size += TILEPRO_BYTES_PER_WORD;
2530 if (*local_tls_type == GOT_TLS_GD)
2531 s->size += TILEPRO_BYTES_PER_WORD;
2532 if (bfd_link_pic (info)
2533 || *local_tls_type == GOT_TLS_GD
2534 || *local_tls_type == GOT_TLS_IE)
2535 srel->size += TILEPRO_ELF_RELA_BYTES;
2536 }
2537 else
2538 *local_got = (bfd_vma) -1;
2539 }
2540 }
2541
2542 /* Allocate global sym .plt and .got entries, and space for global
2543 sym dynamic relocs. */
2544 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2545
2546 if (elf_hash_table (info)->dynamic_sections_created)
2547 {
2548 /* If the .got section is more than 0x8000 bytes, we add
2549 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2550 bit relocations have a greater chance of working. */
2551 if (htab->elf.sgot->size >= 0x8000
2552 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2553 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2554 }
2555
2556 if (htab->elf.sgotplt)
2557 {
2558 struct elf_link_hash_entry *got;
2559 got = elf_link_hash_lookup (elf_hash_table (info),
2560 "_GLOBAL_OFFSET_TABLE_",
2561 FALSE, FALSE, FALSE);
2562
2563 /* Don't allocate .got.plt section if there are no GOT nor PLT
2564 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2565 if ((got == NULL
2566 || !got->ref_regular_nonweak)
2567 && (htab->elf.sgotplt->size
2568 == GOTPLT_HEADER_SIZE)
2569 && (htab->elf.splt == NULL
2570 || htab->elf.splt->size == 0)
2571 && (htab->elf.sgot == NULL
2572 || (htab->elf.sgot->size
2573 == get_elf_backend_data (output_bfd)->got_header_size)))
2574 htab->elf.sgotplt->size = 0;
2575 }
2576
2577 /* The check_relocs and adjust_dynamic_symbol entry points have
2578 determined the sizes of the various dynamic sections. Allocate
2579 memory for them. */
2580 for (s = dynobj->sections; s != NULL; s = s->next)
2581 {
2582 if ((s->flags & SEC_LINKER_CREATED) == 0)
2583 continue;
2584
2585 if (s == htab->elf.splt
2586 || s == htab->elf.sgot
2587 || s == htab->elf.sgotplt
2588 || s == htab->sdynbss)
2589 {
2590 /* Strip this section if we don't need it; see the
2591 comment below. */
2592 }
2593 else if (strncmp (s->name, ".rela", 5) == 0)
2594 {
2595 if (s->size != 0)
2596 {
2597 /* We use the reloc_count field as a counter if we need
2598 to copy relocs into the output file. */
2599 s->reloc_count = 0;
2600 }
2601 }
2602 else
2603 {
2604 /* It's not one of our sections. */
2605 continue;
2606 }
2607
2608 if (s->size == 0)
2609 {
2610 /* If we don't need this section, strip it from the
2611 output file. This is mostly to handle .rela.bss and
2612 .rela.plt. We must create both sections in
2613 create_dynamic_sections, because they must be created
2614 before the linker maps input sections to output
2615 sections. The linker does that before
2616 adjust_dynamic_symbol is called, and it is that
2617 function which decides whether anything needs to go
2618 into these sections. */
2619 s->flags |= SEC_EXCLUDE;
2620 continue;
2621 }
2622
2623 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2624 continue;
2625
2626 /* Allocate memory for the section contents. Zero the memory
2627 for the benefit of .rela.plt, which has 4 unused entries
2628 at the beginning, and we don't want garbage. */
2629 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2630 if (s->contents == NULL)
2631 return FALSE;
2632 }
2633
2634 if (elf_hash_table (info)->dynamic_sections_created)
2635 {
2636 /* Add some entries to the .dynamic section. We fill in the
2637 values later, in tilepro_elf_finish_dynamic_sections, but we
2638 must add the entries now so that we get the correct size for
2639 the .dynamic section. The DT_DEBUG entry is filled in by the
2640 dynamic linker and used by the debugger. */
2641 #define add_dynamic_entry(TAG, VAL) \
2642 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2643
2644 if (bfd_link_executable (info))
2645 {
2646 if (!add_dynamic_entry (DT_DEBUG, 0))
2647 return FALSE;
2648 }
2649
2650 if (htab->elf.srelplt->size != 0)
2651 {
2652 if (!add_dynamic_entry (DT_PLTGOT, 0)
2653 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2654 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2655 || !add_dynamic_entry (DT_JMPREL, 0))
2656 return FALSE;
2657 }
2658
2659 if (!add_dynamic_entry (DT_RELA, 0)
2660 || !add_dynamic_entry (DT_RELASZ, 0)
2661 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2662 return FALSE;
2663
2664 /* If any dynamic relocs apply to a read-only section,
2665 then we need a DT_TEXTREL entry. */
2666 if ((info->flags & DF_TEXTREL) == 0)
2667 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2668
2669 if (info->flags & DF_TEXTREL)
2670 {
2671 if (!add_dynamic_entry (DT_TEXTREL, 0))
2672 return FALSE;
2673 }
2674 }
2675 #undef add_dynamic_entry
2676
2677 return TRUE;
2678 }
2679 \f
2680 /* Return the base VMA address which should be subtracted from real addresses
2681 when resolving @dtpoff relocation.
2682 This is PT_TLS segment p_vaddr. */
2683
2684 static bfd_vma
2685 dtpoff_base (struct bfd_link_info *info)
2686 {
2687 /* If tls_sec is NULL, we should have signalled an error already. */
2688 if (elf_hash_table (info)->tls_sec == NULL)
2689 return 0;
2690 return elf_hash_table (info)->tls_sec->vma;
2691 }
2692
2693 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2694
2695 static bfd_vma
2696 tpoff (struct bfd_link_info *info, bfd_vma address)
2697 {
2698 struct elf_link_hash_table *htab = elf_hash_table (info);
2699
2700 /* If tls_sec is NULL, we should have signalled an error already. */
2701 if (htab->tls_sec == NULL)
2702 return 0;
2703
2704 return (address - htab->tls_sec->vma);
2705 }
2706
2707 /* Replace the MASK bits in ADDR with those in INSN, for the next
2708 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2709
2710 static void
2711 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2712 const bfd_byte *insn)
2713 {
2714 int i;
2715 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2716 {
2717 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2718 }
2719 }
2720
2721 /* Mask to extract the bits corresponding to an instruction in a
2722 specific pipe of a bundle. */
2723 static const bfd_byte insn_mask_X1[] = {
2724 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2725 };
2726
2727 /* Mask to extract the bits corresponding to an instruction in a
2728 specific pipe of a bundle, minus the destination operand and the
2729 first source operand. */
2730 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2731 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2732 };
2733
2734 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2735 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2736 };
2737
2738 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2739 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2740 };
2741
2742 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2743 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2744 };
2745
2746 /* Mask to extract the first source operand of an instruction. */
2747 static const bfd_byte srca_mask_X0[] = {
2748 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2749 };
2750
2751 static const bfd_byte srca_mask_X1[] = {
2752 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2753 };
2754
2755 /* Various instructions synthesized to support tls references. */
2756
2757 /* move r0, r0 in the X1 pipe, used for tls le. */
2758 static const bfd_byte insn_tls_le_move_X1[] = {
2759 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2760 };
2761
2762 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2763 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2764 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2765 };
2766
2767 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2768 static const bfd_byte insn_tls_ie_lw_X1[] = {
2769 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2770 };
2771
2772 /* add r0, r0, tp in various pipes, used for tls ie. */
2773 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2774 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2775 };
2776 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2777 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2778 };
2779
2780 /* move r0, r0 in various pipes, used for tls gd. */
2781 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2782 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2783 };
2784 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2785 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2786 };
2787
2788 /* Relocate an TILEPRO ELF section.
2789
2790 The RELOCATE_SECTION function is called by the new ELF backend linker
2791 to handle the relocations for a section.
2792
2793 The relocs are always passed as Rela structures.
2794
2795 This function is responsible for adjusting the section contents as
2796 necessary, and (if generating a relocatable output file) adjusting
2797 the reloc addend as necessary.
2798
2799 This function does not have to worry about setting the reloc
2800 address or the reloc symbol index.
2801
2802 LOCAL_SYMS is a pointer to the swapped in local symbols.
2803
2804 LOCAL_SECTIONS is an array giving the section in the input file
2805 corresponding to the st_shndx field of each local symbol.
2806
2807 The global hash table entry for the global symbols can be found
2808 via elf_sym_hashes (input_bfd).
2809
2810 When generating relocatable output, this function must handle
2811 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2812 going to be the section symbol corresponding to the output
2813 section, which means that the addend must be adjusted
2814 accordingly. */
2815
2816 static bfd_boolean
2817 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2818 bfd *input_bfd, asection *input_section,
2819 bfd_byte *contents, Elf_Internal_Rela *relocs,
2820 Elf_Internal_Sym *local_syms,
2821 asection **local_sections)
2822 {
2823 struct tilepro_elf_link_hash_table *htab;
2824 Elf_Internal_Shdr *symtab_hdr;
2825 struct elf_link_hash_entry **sym_hashes;
2826 bfd_vma *local_got_offsets;
2827 bfd_vma got_base;
2828 asection *sreloc;
2829 Elf_Internal_Rela *rel;
2830 Elf_Internal_Rela *relend;
2831 int num_relocs;
2832
2833 htab = tilepro_elf_hash_table (info);
2834 BFD_ASSERT (htab != NULL);
2835 symtab_hdr = &elf_symtab_hdr (input_bfd);
2836 sym_hashes = elf_sym_hashes (input_bfd);
2837 local_got_offsets = elf_local_got_offsets (input_bfd);
2838
2839 if (elf_hash_table (info)->hgot == NULL)
2840 got_base = 0;
2841 else
2842 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2843
2844 sreloc = elf_section_data (input_section)->sreloc;
2845
2846 rel = relocs;
2847 num_relocs = input_section->reloc_count;
2848 relend = relocs + num_relocs;
2849 for (; rel < relend; rel++)
2850 {
2851 int r_type, tls_type;
2852 bfd_boolean is_tls_iele, is_tls_le;
2853 reloc_howto_type *howto;
2854 unsigned long r_symndx;
2855 struct elf_link_hash_entry *h;
2856 Elf_Internal_Sym *sym;
2857 tilepro_create_func create_func;
2858 asection *sec;
2859 bfd_vma relocation;
2860 bfd_reloc_status_type r;
2861 const char *name;
2862 bfd_vma off;
2863 bfd_boolean is_plt = FALSE;
2864
2865 bfd_boolean unresolved_reloc;
2866
2867 r_type = ELF32_R_TYPE (rel->r_info);
2868 if (r_type == R_TILEPRO_GNU_VTINHERIT
2869 || r_type == R_TILEPRO_GNU_VTENTRY)
2870 continue;
2871
2872 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2873 {
2874 /* Not clear if we need to check here, but just be paranoid. */
2875 _bfd_error_handler
2876 /* xgettext:c-format */
2877 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
2878 input_bfd, r_type, input_section);
2879 bfd_set_error (bfd_error_bad_value);
2880 return FALSE;
2881 }
2882
2883 howto = tilepro_elf_howto_table + r_type;
2884
2885 /* This is a final link. */
2886 r_symndx = ELF32_R_SYM (rel->r_info);
2887 h = NULL;
2888 sym = NULL;
2889 sec = NULL;
2890 unresolved_reloc = FALSE;
2891 if (r_symndx < symtab_hdr->sh_info)
2892 {
2893 sym = local_syms + r_symndx;
2894 sec = local_sections[r_symndx];
2895 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2896 }
2897 else
2898 {
2899 bfd_boolean warned ATTRIBUTE_UNUSED;
2900 bfd_boolean ignored ATTRIBUTE_UNUSED;
2901
2902 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2903 r_symndx, symtab_hdr, sym_hashes,
2904 h, sec, relocation,
2905 unresolved_reloc, warned, ignored);
2906 if (warned)
2907 {
2908 /* To avoid generating warning messages about truncated
2909 relocations, set the relocation's address to be the same as
2910 the start of this section. */
2911 if (input_section->output_section != NULL)
2912 relocation = input_section->output_section->vma;
2913 else
2914 relocation = 0;
2915 }
2916 }
2917
2918 if (sec != NULL && discarded_section (sec))
2919 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2920 rel, 1, relend, howto, 0, contents);
2921
2922 if (bfd_link_relocatable (info))
2923 continue;
2924
2925 if (h != NULL)
2926 name = h->root.root.string;
2927 else
2928 {
2929 name = (bfd_elf_string_from_elf_section
2930 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2931 if (name == NULL || *name == '\0')
2932 name = bfd_section_name (input_bfd, sec);
2933 }
2934
2935 switch (r_type)
2936 {
2937 case R_TILEPRO_TLS_GD_CALL:
2938 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2939 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2940 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2941 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2942 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2943 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2944 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2945 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2946 tls_type = GOT_UNKNOWN;
2947 if (h == NULL && local_got_offsets)
2948 tls_type =
2949 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2950 else if (h != NULL)
2951 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2952
2953 is_tls_iele = (! bfd_link_pic (info) || tls_type == GOT_TLS_IE);
2954 is_tls_le = is_tls_iele && (!bfd_link_pic (info)
2955 && (h == NULL || h->dynindx == -1));
2956
2957 if (r_type == R_TILEPRO_TLS_GD_CALL)
2958 {
2959 if (is_tls_le)
2960 {
2961 /* GD -> LE */
2962 tilepro_replace_insn (contents + rel->r_offset,
2963 insn_mask_X1, insn_tls_le_move_X1);
2964 continue;
2965 }
2966 else if (is_tls_iele)
2967 {
2968 /* GD -> IE */
2969 tilepro_replace_insn (contents + rel->r_offset,
2970 insn_mask_X1, insn_tls_ie_lw_X1);
2971 continue;
2972 }
2973
2974 /* GD -> GD */
2975 h = (struct elf_link_hash_entry *)
2976 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2977 FALSE, TRUE);
2978 BFD_ASSERT (h != NULL);
2979 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2980 howto = tilepro_elf_howto_table + r_type;
2981 }
2982 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2983 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2984 {
2985 if (is_tls_le)
2986 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2987 insn_tls_le_move_zero_X0X1);
2988 }
2989 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2990 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2991 {
2992 if (is_tls_le)
2993 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2994 insn_tls_le_move_zero_X0X1);
2995 }
2996 else
2997 {
2998 const bfd_byte *mask = NULL;
2999 const bfd_byte *add_insn = NULL;
3000
3001 switch (r_type)
3002 {
3003 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
3004 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
3005 : insn_tls_gd_add_X0X1;
3006 mask = insn_mask_X0_no_dest_no_srca;
3007 break;
3008 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
3009 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
3010 : insn_tls_gd_add_X0X1;
3011 mask = insn_mask_X1_no_dest_no_srca;
3012 break;
3013 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
3014 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
3015 : insn_tls_gd_add_Y0Y1;
3016 mask = insn_mask_Y0_no_dest_no_srca;
3017 break;
3018 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
3019 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
3020 : insn_tls_gd_add_Y0Y1;
3021 mask = insn_mask_Y1_no_dest_no_srca;
3022 break;
3023 }
3024
3025 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
3026
3027 continue;
3028 }
3029 break;
3030 case R_TILEPRO_TLS_IE_LOAD:
3031 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3032 /* IE -> LE */
3033 tilepro_replace_insn (contents + rel->r_offset,
3034 insn_mask_X1_no_dest_no_srca,
3035 insn_tls_le_move_X1);
3036 else
3037 /* IE -> IE */
3038 tilepro_replace_insn (contents + rel->r_offset,
3039 insn_mask_X1_no_dest_no_srca,
3040 insn_tls_ie_lw_X1);
3041 continue;
3042 break;
3043 default:
3044 break;
3045 }
3046
3047 switch (r_type)
3048 {
3049 case R_TILEPRO_IMM16_X0_GOT:
3050 case R_TILEPRO_IMM16_X1_GOT:
3051 case R_TILEPRO_IMM16_X0_GOT_LO:
3052 case R_TILEPRO_IMM16_X1_GOT_LO:
3053 case R_TILEPRO_IMM16_X0_GOT_HI:
3054 case R_TILEPRO_IMM16_X1_GOT_HI:
3055 case R_TILEPRO_IMM16_X0_GOT_HA:
3056 case R_TILEPRO_IMM16_X1_GOT_HA:
3057 /* Relocation is to the entry for this symbol in the global
3058 offset table. */
3059 if (htab->elf.sgot == NULL)
3060 abort ();
3061
3062 if (h != NULL)
3063 {
3064 bfd_boolean dyn;
3065
3066 off = h->got.offset;
3067 BFD_ASSERT (off != (bfd_vma) -1);
3068 dyn = elf_hash_table (info)->dynamic_sections_created;
3069
3070 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3071 bfd_link_pic (info),
3072 h)
3073 || (bfd_link_pic (info)
3074 && SYMBOL_REFERENCES_LOCAL (info, h)))
3075 {
3076 /* This is actually a static link, or it is a
3077 -Bsymbolic link and the symbol is defined
3078 locally, or the symbol was forced to be local
3079 because of a version file. We must initialize
3080 this entry in the global offset table. Since the
3081 offset must always be a multiple
3082 of 4 for 32-bit, we use the least significant bit
3083 to record whether we have initialized it already.
3084
3085 When doing a dynamic link, we create a .rela.got
3086 relocation entry to initialize the value. This
3087 is done in the finish_dynamic_symbol routine. */
3088 if ((off & 1) != 0)
3089 off &= ~1;
3090 else
3091 {
3092 bfd_put_32 (output_bfd, relocation,
3093 htab->elf.sgot->contents + off);
3094 h->got.offset |= 1;
3095 }
3096 }
3097 else
3098 unresolved_reloc = FALSE;
3099 }
3100 else
3101 {
3102 BFD_ASSERT (local_got_offsets != NULL
3103 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3104
3105 off = local_got_offsets[r_symndx];
3106
3107 /* The offset must always be a multiple of 4 on 32-bit.
3108 We use the least significant bit to record
3109 whether we have already processed this entry. */
3110 if ((off & 1) != 0)
3111 off &= ~1;
3112 else
3113 {
3114 if (bfd_link_pic (info))
3115 {
3116 asection *s;
3117 Elf_Internal_Rela outrel;
3118
3119 /* We need to generate a R_TILEPRO_RELATIVE reloc
3120 for the dynamic linker. */
3121 s = htab->elf.srelgot;
3122 BFD_ASSERT (s != NULL);
3123
3124 outrel.r_offset = (htab->elf.sgot->output_section->vma
3125 + htab->elf.sgot->output_offset
3126 + off);
3127 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3128 outrel.r_addend = relocation;
3129 relocation = 0;
3130 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
3131 }
3132
3133 bfd_put_32 (output_bfd, relocation,
3134 htab->elf.sgot->contents + off);
3135 local_got_offsets[r_symndx] |= 1;
3136 }
3137 }
3138 relocation = off - got_base;
3139 break;
3140
3141 case R_TILEPRO_JOFFLONG_X1_PLT:
3142 /* Relocation is to the entry for this symbol in the
3143 procedure linkage table. */
3144 BFD_ASSERT (h != NULL);
3145
3146 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3147 {
3148 /* We didn't make a PLT entry for this symbol. This
3149 happens when statically linking PIC code, or when
3150 using -Bsymbolic. */
3151 break;
3152 }
3153
3154 relocation = (htab->elf.splt->output_section->vma
3155 + htab->elf.splt->output_offset
3156 + h->plt.offset);
3157 unresolved_reloc = FALSE;
3158 break;
3159
3160 case R_TILEPRO_32_PCREL:
3161 case R_TILEPRO_16_PCREL:
3162 case R_TILEPRO_8_PCREL:
3163 case R_TILEPRO_IMM16_X0_PCREL:
3164 case R_TILEPRO_IMM16_X1_PCREL:
3165 case R_TILEPRO_IMM16_X0_LO_PCREL:
3166 case R_TILEPRO_IMM16_X1_LO_PCREL:
3167 case R_TILEPRO_IMM16_X0_HI_PCREL:
3168 case R_TILEPRO_IMM16_X1_HI_PCREL:
3169 case R_TILEPRO_IMM16_X0_HA_PCREL:
3170 case R_TILEPRO_IMM16_X1_HA_PCREL:
3171 if (h != NULL
3172 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3173 break;
3174 /* Fall through. */
3175 case R_TILEPRO_32:
3176 case R_TILEPRO_16:
3177 case R_TILEPRO_8:
3178 case R_TILEPRO_LO16:
3179 case R_TILEPRO_HI16:
3180 case R_TILEPRO_HA16:
3181 case R_TILEPRO_COPY:
3182 case R_TILEPRO_GLOB_DAT:
3183 case R_TILEPRO_JMP_SLOT:
3184 case R_TILEPRO_RELATIVE:
3185 case R_TILEPRO_BROFF_X1:
3186 case R_TILEPRO_JOFFLONG_X1:
3187 case R_TILEPRO_IMM8_X0:
3188 case R_TILEPRO_IMM8_Y0:
3189 case R_TILEPRO_IMM8_X1:
3190 case R_TILEPRO_IMM8_Y1:
3191 case R_TILEPRO_DEST_IMM8_X1:
3192 case R_TILEPRO_MT_IMM15_X1:
3193 case R_TILEPRO_MF_IMM15_X1:
3194 case R_TILEPRO_IMM16_X0:
3195 case R_TILEPRO_IMM16_X1:
3196 case R_TILEPRO_IMM16_X0_LO:
3197 case R_TILEPRO_IMM16_X1_LO:
3198 case R_TILEPRO_IMM16_X0_HI:
3199 case R_TILEPRO_IMM16_X1_HI:
3200 case R_TILEPRO_IMM16_X0_HA:
3201 case R_TILEPRO_IMM16_X1_HA:
3202 case R_TILEPRO_MMSTART_X0:
3203 case R_TILEPRO_MMEND_X0:
3204 case R_TILEPRO_MMSTART_X1:
3205 case R_TILEPRO_MMEND_X1:
3206 case R_TILEPRO_SHAMT_X0:
3207 case R_TILEPRO_SHAMT_X1:
3208 case R_TILEPRO_SHAMT_Y0:
3209 case R_TILEPRO_SHAMT_Y1:
3210 if ((input_section->flags & SEC_ALLOC) == 0)
3211 break;
3212
3213 if ((bfd_link_pic (info)
3214 && (h == NULL
3215 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3216 || h->root.type != bfd_link_hash_undefweak)
3217 && (! howto->pc_relative
3218 || !SYMBOL_CALLS_LOCAL (info, h)))
3219 || (!bfd_link_pic (info)
3220 && h != NULL
3221 && h->dynindx != -1
3222 && !h->non_got_ref
3223 && ((h->def_dynamic
3224 && !h->def_regular)
3225 || h->root.type == bfd_link_hash_undefweak
3226 || h->root.type == bfd_link_hash_undefined)))
3227 {
3228 Elf_Internal_Rela outrel;
3229 bfd_boolean skip, relocate = FALSE;
3230
3231 /* When generating a shared object, these relocations
3232 are copied into the output file to be resolved at run
3233 time. */
3234
3235 BFD_ASSERT (sreloc != NULL);
3236
3237 skip = FALSE;
3238
3239 outrel.r_offset =
3240 _bfd_elf_section_offset (output_bfd, info, input_section,
3241 rel->r_offset);
3242 if (outrel.r_offset == (bfd_vma) -1)
3243 skip = TRUE;
3244 else if (outrel.r_offset == (bfd_vma) -2)
3245 skip = TRUE, relocate = TRUE;
3246 outrel.r_offset += (input_section->output_section->vma
3247 + input_section->output_offset);
3248
3249 switch (r_type)
3250 {
3251 case R_TILEPRO_32_PCREL:
3252 case R_TILEPRO_16_PCREL:
3253 case R_TILEPRO_8_PCREL:
3254 /* If the symbol is not dynamic, we should not keep
3255 a dynamic relocation. But an .rela.* slot has been
3256 allocated for it, output R_TILEPRO_NONE.
3257 FIXME: Add code tracking needed dynamic relocs as
3258 e.g. i386 has. */
3259 if (h->dynindx == -1)
3260 skip = TRUE, relocate = TRUE;
3261 break;
3262 }
3263
3264 if (skip)
3265 memset (&outrel, 0, sizeof outrel);
3266 /* h->dynindx may be -1 if the symbol was marked to
3267 become local. */
3268 else if (h != NULL &&
3269 h->dynindx != -1
3270 && (! is_plt
3271 || !bfd_link_pic (info)
3272 || !SYMBOLIC_BIND (info, h)
3273 || !h->def_regular))
3274 {
3275 BFD_ASSERT (h->dynindx != -1);
3276 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3277 outrel.r_addend = rel->r_addend;
3278 }
3279 else
3280 {
3281 if (r_type == R_TILEPRO_32)
3282 {
3283 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3284 outrel.r_addend = relocation + rel->r_addend;
3285 }
3286 else
3287 {
3288 long indx;
3289
3290 outrel.r_addend = relocation + rel->r_addend;
3291
3292 if (is_plt)
3293 sec = htab->elf.splt;
3294
3295 if (bfd_is_abs_section (sec))
3296 indx = 0;
3297 else if (sec == NULL || sec->owner == NULL)
3298 {
3299 bfd_set_error (bfd_error_bad_value);
3300 return FALSE;
3301 }
3302 else
3303 {
3304 asection *osec;
3305
3306 /* We are turning this relocation into one
3307 against a section symbol. It would be
3308 proper to subtract the symbol's value,
3309 osec->vma, from the emitted reloc addend,
3310 but ld.so expects buggy relocs. */
3311 osec = sec->output_section;
3312 indx = elf_section_data (osec)->dynindx;
3313
3314 if (indx == 0)
3315 {
3316 osec = htab->elf.text_index_section;
3317 indx = elf_section_data (osec)->dynindx;
3318 }
3319
3320 /* FIXME: we really should be able to link non-pic
3321 shared libraries. */
3322 if (indx == 0)
3323 {
3324 BFD_FAIL ();
3325 _bfd_error_handler
3326 (_("%B: probably compiled without -fPIC?"),
3327 input_bfd);
3328 bfd_set_error (bfd_error_bad_value);
3329 return FALSE;
3330 }
3331 }
3332
3333 outrel.r_info = ELF32_R_INFO (indx, r_type);
3334 }
3335 }
3336
3337 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3338
3339 /* This reloc will be computed at runtime, so there's no
3340 need to do anything now. */
3341 if (! relocate)
3342 continue;
3343 }
3344 break;
3345
3346 case R_TILEPRO_IMM16_X0_TLS_LE:
3347 case R_TILEPRO_IMM16_X1_TLS_LE:
3348 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3349 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3350 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3351 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3352 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3353 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3354 if (bfd_link_pic (info))
3355 {
3356 Elf_Internal_Rela outrel;
3357 bfd_boolean skip;
3358
3359 BFD_ASSERT (sreloc != NULL);
3360 skip = FALSE;
3361 outrel.r_offset =
3362 _bfd_elf_section_offset (output_bfd, info, input_section,
3363 rel->r_offset);
3364 if (outrel.r_offset == (bfd_vma) -1)
3365 skip = TRUE;
3366 else if (outrel.r_offset == (bfd_vma) -2)
3367 skip = TRUE;
3368 outrel.r_offset += (input_section->output_section->vma
3369 + input_section->output_offset);
3370 if (skip)
3371 memset (&outrel, 0, sizeof outrel);
3372 else
3373 {
3374 outrel.r_info = ELF32_R_INFO (0, r_type);
3375 outrel.r_addend = relocation - dtpoff_base (info)
3376 + rel->r_addend;
3377 }
3378
3379 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3380 continue;
3381 }
3382 relocation = tpoff (info, relocation);
3383 break;
3384
3385 case R_TILEPRO_IMM16_X0_TLS_GD:
3386 case R_TILEPRO_IMM16_X1_TLS_GD:
3387 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3388 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3389 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3390 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3391 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3392 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3393 case R_TILEPRO_IMM16_X0_TLS_IE:
3394 case R_TILEPRO_IMM16_X1_TLS_IE:
3395 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3396 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3397 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3398 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3399 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3400 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3401 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3402 tls_type = GOT_UNKNOWN;
3403 if (h == NULL && local_got_offsets)
3404 tls_type
3405 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3406 else if (h != NULL)
3407 {
3408 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3409 if (!bfd_link_pic (info) && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3410 r_type = tilepro_tls_translate_to_le (r_type);
3411 }
3412 if (tls_type == GOT_TLS_IE)
3413 r_type = tilepro_tls_translate_to_ie (r_type);
3414
3415 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3416 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3417 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3418 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3419 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3420 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3421 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3422 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3423 {
3424 relocation = tpoff (info, relocation);
3425 break;
3426 }
3427
3428 if (h != NULL)
3429 {
3430 off = h->got.offset;
3431 h->got.offset |= 1;
3432 }
3433 else
3434 {
3435 BFD_ASSERT (local_got_offsets != NULL);
3436 off = local_got_offsets[r_symndx];
3437 local_got_offsets[r_symndx] |= 1;
3438 }
3439
3440 if (htab->elf.sgot == NULL)
3441 abort ();
3442
3443 if ((off & 1) != 0)
3444 off &= ~1;
3445 else
3446 {
3447 Elf_Internal_Rela outrel;
3448 int indx = 0;
3449 bfd_boolean need_relocs = FALSE;
3450
3451 if (htab->elf.srelgot == NULL)
3452 abort ();
3453
3454 if (h != NULL)
3455 {
3456 bfd_boolean dyn;
3457 dyn = htab->elf.dynamic_sections_created;
3458
3459 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3460 bfd_link_pic (info),
3461 h)
3462 && (!bfd_link_pic (info)
3463 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3464 {
3465 indx = h->dynindx;
3466 }
3467 }
3468
3469 /* The GOT entries have not been initialized yet. Do it
3470 now, and emit any relocations. */
3471 if ((bfd_link_pic (info) || indx != 0)
3472 && (h == NULL
3473 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3474 || h->root.type != bfd_link_hash_undefweak))
3475 need_relocs = TRUE;
3476
3477 switch (r_type)
3478 {
3479 case R_TILEPRO_IMM16_X0_TLS_IE:
3480 case R_TILEPRO_IMM16_X1_TLS_IE:
3481 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3482 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3483 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3484 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3485 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3486 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3487 if (need_relocs) {
3488 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3489 outrel.r_offset = (htab->elf.sgot->output_section->vma
3490 + htab->elf.sgot->output_offset + off);
3491 outrel.r_addend = 0;
3492 if (indx == 0)
3493 outrel.r_addend = relocation - dtpoff_base (info);
3494 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3495 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3496 &outrel);
3497 } else {
3498 bfd_put_32 (output_bfd, tpoff (info, relocation),
3499 htab->elf.sgot->contents + off);
3500 }
3501 break;
3502
3503 case R_TILEPRO_IMM16_X0_TLS_GD:
3504 case R_TILEPRO_IMM16_X1_TLS_GD:
3505 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3506 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3507 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3508 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3509 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3510 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3511 if (need_relocs) {
3512 outrel.r_offset = (htab->elf.sgot->output_section->vma
3513 + htab->elf.sgot->output_offset + off);
3514 outrel.r_addend = 0;
3515 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3516 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3517 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3518 &outrel);
3519 if (indx == 0)
3520 {
3521 BFD_ASSERT (! unresolved_reloc);
3522 bfd_put_32 (output_bfd,
3523 relocation - dtpoff_base (info),
3524 (htab->elf.sgot->contents + off +
3525 TILEPRO_BYTES_PER_WORD));
3526 }
3527 else
3528 {
3529 bfd_put_32 (output_bfd, 0,
3530 (htab->elf.sgot->contents + off +
3531 TILEPRO_BYTES_PER_WORD));
3532 outrel.r_info = ELF32_R_INFO (indx,
3533 R_TILEPRO_TLS_DTPOFF32);
3534 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3535 tilepro_elf_append_rela_32 (output_bfd,
3536 htab->elf.srelgot, &outrel);
3537 }
3538 }
3539
3540 else {
3541 /* If we are not emitting relocations for a
3542 general dynamic reference, then we must be in a
3543 static link or an executable link with the
3544 symbol binding locally. Mark it as belonging
3545 to module 1, the executable. */
3546 bfd_put_32 (output_bfd, 1,
3547 htab->elf.sgot->contents + off );
3548 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3549 htab->elf.sgot->contents + off +
3550 TILEPRO_BYTES_PER_WORD);
3551 }
3552 break;
3553 }
3554 }
3555
3556 if (off >= (bfd_vma) -2)
3557 abort ();
3558
3559 relocation = off - got_base;
3560 unresolved_reloc = FALSE;
3561 howto = tilepro_elf_howto_table + r_type;
3562 break;
3563
3564 default:
3565 break;
3566 }
3567
3568 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3569 because such sections are not SEC_ALLOC and thus ld.so will
3570 not process them. */
3571 if (unresolved_reloc
3572 && !((input_section->flags & SEC_DEBUGGING) != 0
3573 && h->def_dynamic)
3574 && _bfd_elf_section_offset (output_bfd, info, input_section,
3575 rel->r_offset) != (bfd_vma) -1)
3576 _bfd_error_handler
3577 /* xgettext:c-format */
3578 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3579 input_bfd,
3580 input_section,
3581 (long) rel->r_offset,
3582 howto->name,
3583 h->root.root.string);
3584
3585 r = bfd_reloc_continue;
3586
3587 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3588 * we will increment bit 16. The howto->rightshift takes care
3589 * of the rest for us. */
3590 switch (r_type)
3591 {
3592 case R_TILEPRO_HA16:
3593 case R_TILEPRO_IMM16_X0_HA:
3594 case R_TILEPRO_IMM16_X1_HA:
3595 case R_TILEPRO_IMM16_X0_HA_PCREL:
3596 case R_TILEPRO_IMM16_X1_HA_PCREL:
3597 case R_TILEPRO_IMM16_X0_GOT_HA:
3598 case R_TILEPRO_IMM16_X1_GOT_HA:
3599 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3600 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3601 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3602 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3603 relocation += 0x8000;
3604 break;
3605 }
3606
3607 /* Get the operand creation function, if any. */
3608 create_func = reloc_to_create_func[r_type];
3609 if (create_func == NULL)
3610 {
3611 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3612 contents, rel->r_offset,
3613 relocation, rel->r_addend);
3614 }
3615 else
3616 {
3617 if (howto->pc_relative)
3618 {
3619 relocation -=
3620 input_section->output_section->vma + input_section->output_offset;
3621 if (howto->pcrel_offset)
3622 relocation -= rel->r_offset;
3623 }
3624
3625 bfd_byte *data;
3626
3627 /* Add the relocation addend if any to the final target value */
3628 relocation += rel->r_addend;
3629
3630 /* Do basic range checking */
3631 r = bfd_check_overflow (howto->complain_on_overflow,
3632 howto->bitsize,
3633 howto->rightshift,
3634 32,
3635 relocation);
3636
3637 /*
3638 * Write the relocated value out into the raw section data.
3639 * Don't put a relocation out in the .rela section.
3640 */
3641 tilepro_bundle_bits mask = create_func(-1);
3642 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3643
3644 /* Only touch bytes while the mask is not 0, so we
3645 don't write to out of bounds memory if this is actually
3646 a 16-bit switch instruction. */
3647 for (data = contents + rel->r_offset; mask != 0; data++)
3648 {
3649 bfd_byte byte_mask = (bfd_byte)mask;
3650 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3651 mask >>= 8;
3652 value >>= 8;
3653 }
3654 }
3655
3656 if (r != bfd_reloc_ok)
3657 {
3658 const char *msg = NULL;
3659
3660 switch (r)
3661 {
3662 case bfd_reloc_overflow:
3663 (*info->callbacks->reloc_overflow)
3664 (info, (h ? &h->root : NULL), name, howto->name,
3665 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3666 break;
3667
3668 case bfd_reloc_undefined:
3669 (*info->callbacks->undefined_symbol)
3670 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3671 break;
3672
3673 case bfd_reloc_outofrange:
3674 msg = _("internal error: out of range error");
3675 break;
3676
3677 case bfd_reloc_notsupported:
3678 msg = _("internal error: unsupported relocation error");
3679 break;
3680
3681 case bfd_reloc_dangerous:
3682 msg = _("internal error: dangerous relocation");
3683 break;
3684
3685 default:
3686 msg = _("internal error: unknown error");
3687 break;
3688 }
3689
3690 if (msg)
3691 (*info->callbacks->warning) (info, msg, name, input_bfd,
3692 input_section, rel->r_offset);
3693 }
3694 }
3695
3696 return TRUE;
3697 }
3698
3699 /* Finish up dynamic symbol handling. We set the contents of various
3700 dynamic sections here. */
3701
3702 static bfd_boolean
3703 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3704 struct bfd_link_info *info,
3705 struct elf_link_hash_entry *h,
3706 Elf_Internal_Sym *sym)
3707 {
3708 struct tilepro_elf_link_hash_table *htab;
3709
3710 htab = tilepro_elf_hash_table (info);
3711 BFD_ASSERT (htab != NULL);
3712
3713 if (h->plt.offset != (bfd_vma) -1)
3714 {
3715 asection *splt;
3716 asection *srela;
3717 asection *sgotplt;
3718 Elf_Internal_Rela rela;
3719 bfd_byte *loc;
3720 bfd_vma r_offset;
3721
3722 int rela_index;
3723
3724 /* This symbol has an entry in the PLT. Set it up. */
3725
3726 BFD_ASSERT (h->dynindx != -1);
3727
3728 splt = htab->elf.splt;
3729 srela = htab->elf.srelplt;
3730 sgotplt = htab->elf.sgotplt;
3731
3732 if (splt == NULL || srela == NULL)
3733 abort ();
3734
3735 /* Fill in the entry in the procedure linkage table. */
3736 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3737 &r_offset);
3738
3739 /* Fill in the entry in the global offset table, which initially points
3740 to the beginning of the plt. */
3741 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3742 sgotplt->contents + r_offset);
3743
3744 /* Fill in the entry in the .rela.plt section. */
3745 rela.r_offset = (sgotplt->output_section->vma
3746 + sgotplt->output_offset
3747 + r_offset);
3748 rela.r_addend = 0;
3749 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3750
3751 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3752 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3753
3754 if (!h->def_regular)
3755 {
3756 /* Mark the symbol as undefined, rather than as defined in
3757 the .plt section. Leave the value alone. */
3758 sym->st_shndx = SHN_UNDEF;
3759 /* If the symbol is weak, we do need to clear the value.
3760 Otherwise, the PLT entry would provide a definition for
3761 the symbol even if the symbol wasn't defined anywhere,
3762 and so the symbol would never be NULL. */
3763 if (!h->ref_regular_nonweak)
3764 sym->st_value = 0;
3765 }
3766 }
3767
3768 if (h->got.offset != (bfd_vma) -1
3769 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3770 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3771 {
3772 asection *sgot;
3773 asection *srela;
3774 Elf_Internal_Rela rela;
3775
3776 /* This symbol has an entry in the GOT. Set it up. */
3777
3778 sgot = htab->elf.sgot;
3779 srela = htab->elf.srelgot;
3780 BFD_ASSERT (sgot != NULL && srela != NULL);
3781
3782 rela.r_offset = (sgot->output_section->vma
3783 + sgot->output_offset
3784 + (h->got.offset &~ (bfd_vma) 1));
3785
3786 /* If this is a -Bsymbolic link, and the symbol is defined
3787 locally, we just want to emit a RELATIVE reloc. Likewise if
3788 the symbol was forced to be local because of a version file.
3789 The entry in the global offset table will already have been
3790 initialized in the relocate_section function. */
3791 if (bfd_link_pic (info)
3792 && (info->symbolic || h->dynindx == -1)
3793 && h->def_regular)
3794 {
3795 asection *sec = h->root.u.def.section;
3796 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3797 rela.r_addend = (h->root.u.def.value
3798 + sec->output_section->vma
3799 + sec->output_offset);
3800 }
3801 else
3802 {
3803 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3804 rela.r_addend = 0;
3805 }
3806
3807 bfd_put_32 (output_bfd, 0,
3808 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3809 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3810 }
3811
3812 if (h->needs_copy)
3813 {
3814 asection *s;
3815 Elf_Internal_Rela rela;
3816
3817 /* This symbols needs a copy reloc. Set it up. */
3818 BFD_ASSERT (h->dynindx != -1);
3819
3820 s = htab->srelbss;
3821 BFD_ASSERT (s != NULL);
3822
3823 rela.r_offset = (h->root.u.def.value
3824 + h->root.u.def.section->output_section->vma
3825 + h->root.u.def.section->output_offset);
3826 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3827 rela.r_addend = 0;
3828 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3829 }
3830
3831 /* Mark some specially defined symbols as absolute. */
3832 if (h == htab->elf.hdynamic
3833 || (h == htab->elf.hgot || h == htab->elf.hplt))
3834 sym->st_shndx = SHN_ABS;
3835
3836 return TRUE;
3837 }
3838
3839 /* Finish up the dynamic sections. */
3840
3841 static bfd_boolean
3842 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3843 bfd *dynobj, asection *sdyn,
3844 asection *splt ATTRIBUTE_UNUSED)
3845 {
3846 Elf32_External_Dyn *dyncon, *dynconend;
3847 struct tilepro_elf_link_hash_table *htab;
3848
3849 htab = tilepro_elf_hash_table (info);
3850 BFD_ASSERT (htab != NULL);
3851 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3852 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3853 for (; dyncon < dynconend; dyncon++)
3854 {
3855 Elf_Internal_Dyn dyn;
3856 asection *s;
3857
3858 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3859
3860 switch (dyn.d_tag)
3861 {
3862 case DT_PLTGOT:
3863 s = htab->elf.sgotplt;
3864 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3865 break;
3866 case DT_JMPREL:
3867 s = htab->elf.srelplt;
3868 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3869 break;
3870 case DT_PLTRELSZ:
3871 s = htab->elf.srelplt;
3872 dyn.d_un.d_val = s->size;
3873 break;
3874 default:
3875 continue;
3876 }
3877
3878 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3879 }
3880 return TRUE;
3881 }
3882
3883 static bfd_boolean
3884 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3885 struct bfd_link_info *info)
3886 {
3887 bfd *dynobj;
3888 asection *sdyn;
3889 struct tilepro_elf_link_hash_table *htab;
3890
3891 htab = tilepro_elf_hash_table (info);
3892 BFD_ASSERT (htab != NULL);
3893 dynobj = htab->elf.dynobj;
3894
3895 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3896
3897 if (elf_hash_table (info)->dynamic_sections_created)
3898 {
3899 asection *splt;
3900 bfd_boolean ret;
3901
3902 splt = htab->elf.splt;
3903 BFD_ASSERT (splt != NULL && sdyn != NULL);
3904
3905 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3906
3907 if (ret != TRUE)
3908 return ret;
3909
3910 /* Fill in the first entry in the procedure linkage table. */
3911 if (splt->size > 0)
3912 {
3913 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3914 memset (splt->contents + PLT_HEADER_SIZE, 0,
3915 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3916 }
3917
3918 if (elf_section_data (splt->output_section) != NULL)
3919 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3920 = PLT_ENTRY_SIZE;
3921 }
3922
3923 if (htab->elf.sgotplt)
3924 {
3925 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3926 {
3927 _bfd_error_handler
3928 (_("discarded output section: `%A'"), htab->elf.sgotplt);
3929 return FALSE;
3930 }
3931
3932 if (htab->elf.sgotplt->size > 0)
3933 {
3934 /* Write the first two entries in .got.plt, needed for the dynamic
3935 linker. */
3936 bfd_put_32 (output_bfd, (bfd_vma) -1,
3937 htab->elf.sgotplt->contents);
3938 bfd_put_32 (output_bfd, (bfd_vma) 0,
3939 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3940 }
3941
3942 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3943 = GOT_ENTRY_SIZE;
3944 }
3945
3946 if (htab->elf.sgot)
3947 {
3948 if (htab->elf.sgot->size > 0)
3949 {
3950 /* Set the first entry in the global offset table to the address of
3951 the dynamic section. */
3952 bfd_vma val = (sdyn ?
3953 sdyn->output_section->vma + sdyn->output_offset :
3954 0);
3955 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3956 }
3957
3958 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3959 = GOT_ENTRY_SIZE;
3960 }
3961
3962 return TRUE;
3963 }
3964
3965 \f
3966
3967 /* Return address for Ith PLT stub in section PLT, for relocation REL
3968 or (bfd_vma) -1 if it should not be included. */
3969
3970 static bfd_vma
3971 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3972 const arelent *rel ATTRIBUTE_UNUSED)
3973 {
3974 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3975 }
3976
3977 static enum elf_reloc_type_class
3978 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3979 const asection *rel_sec ATTRIBUTE_UNUSED,
3980 const Elf_Internal_Rela *rela)
3981 {
3982 switch ((int) ELF32_R_TYPE (rela->r_info))
3983 {
3984 case R_TILEPRO_RELATIVE:
3985 return reloc_class_relative;
3986 case R_TILEPRO_JMP_SLOT:
3987 return reloc_class_plt;
3988 case R_TILEPRO_COPY:
3989 return reloc_class_copy;
3990 default:
3991 return reloc_class_normal;
3992 }
3993 }
3994
3995 static int
3996 tilepro_additional_program_headers (bfd *abfd,
3997 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3998 {
3999 /* Each .intrpt section specified by the user adds another PT_LOAD
4000 header since the sections are discontiguous. */
4001 static const char intrpt_sections[4][9] =
4002 {
4003 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
4004 };
4005 int count = 0;
4006 int i;
4007
4008 for (i = 0; i < 4; i++)
4009 {
4010 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
4011 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
4012 ++count;
4013 }
4014
4015 /* Add four "padding" headers in to leave room in case a custom linker
4016 script does something fancy. Otherwise ld complains that it ran
4017 out of program headers and refuses to link. */
4018 count += 4;
4019
4020 return count;
4021 }
4022
4023 #define ELF_ARCH bfd_arch_tilepro
4024 #define ELF_TARGET_ID TILEPRO_ELF_DATA
4025 #define ELF_MACHINE_CODE EM_TILEPRO
4026 #define ELF_MAXPAGESIZE 0x10000
4027 #define ELF_COMMONPAGESIZE 0x10000
4028
4029 #define TARGET_LITTLE_SYM tilepro_elf32_vec
4030 #define TARGET_LITTLE_NAME "elf32-tilepro"
4031
4032 #define elf_backend_reloc_type_class tilepro_reloc_type_class
4033
4034 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
4035 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
4036 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
4037
4038 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
4039 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
4040 #define elf_backend_check_relocs tilepro_elf_check_relocs
4041 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
4042 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
4043 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
4044 #define elf_backend_relocate_section tilepro_elf_relocate_section
4045 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
4046 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
4047 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
4048 #define elf_backend_gc_sweep_hook tilepro_elf_gc_sweep_hook
4049 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
4050 #define elf_info_to_howto_rel NULL
4051 #define elf_info_to_howto tilepro_info_to_howto_rela
4052 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
4053 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
4054 #define elf_backend_additional_program_headers tilepro_additional_program_headers
4055
4056 #define bfd_elf32_mkobject tilepro_elf_mkobject
4057
4058 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4059
4060 #define elf_backend_can_gc_sections 1
4061 #define elf_backend_can_refcount 1
4062 #define elf_backend_want_got_plt 1
4063 #define elf_backend_plt_readonly 1
4064 /* Align PLT mod 64 byte L2 line size. */
4065 #define elf_backend_plt_alignment 6
4066 #define elf_backend_want_plt_sym 1
4067 #define elf_backend_got_header_size GOT_ENTRY_SIZE
4068 #define elf_backend_rela_normal 1
4069 #define elf_backend_default_execstack 0
4070
4071 #include "elf32-target.h"
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