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