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