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[deliverable/binutils-gdb.git] / bfd / elf32-tilepro.c
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright (C) 2011-2020 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 #define GOT_UNKNOWN 0
689 #define GOT_NORMAL 1
690 #define GOT_TLS_GD 2
691 #define GOT_TLS_IE 4
692 unsigned char tls_type;
693 };
694
695 #define tilepro_elf_hash_entry(ent) \
696 ((struct tilepro_elf_link_hash_entry *)(ent))
697
698 struct _bfd_tilepro_elf_obj_tdata
699 {
700 struct elf_obj_tdata root;
701
702 /* tls_type for each local got entry. */
703 char *local_got_tls_type;
704 };
705
706 #define _bfd_tilepro_elf_tdata(abfd) \
707 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
708
709 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
710 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
711
712 #define is_tilepro_elf(bfd) \
713 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
714 && elf_tdata (bfd) != NULL \
715 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
716
717 /* Allocate TILEPro ELF private object data. */
718
719 static bfd_boolean
720 tilepro_elf_mkobject (bfd *abfd)
721 {
722 return bfd_elf_allocate_object (abfd,
723 sizeof (struct _bfd_tilepro_elf_obj_tdata),
724 TILEPRO_ELF_DATA);
725 }
726
727 #include "elf/common.h"
728 #include "elf/internal.h"
729
730 struct tilepro_elf_link_hash_table
731 {
732 struct elf_link_hash_table elf;
733
734 /* Small local sym to section mapping cache. */
735 struct sym_cache sym_cache;
736 };
737
738 /* Get the Tilepro ELF linker hash table from a link_info structure. */
739 #define tilepro_elf_hash_table(p) \
740 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
741 == TILEPRO_ELF_DATA \
742 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
743
744 static reloc_howto_type *
745 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
746 bfd_reloc_code_real_type code)
747 {
748 unsigned int i;
749
750 for (i = ARRAY_SIZE (tilepro_reloc_map); i--;)
751 {
752 const reloc_map * entry;
753
754 entry = tilepro_reloc_map + i;
755
756 if (entry->bfd_reloc_val == code)
757 return entry->table + (entry->tilepro_reloc_val
758 - entry->table[0].type);
759 }
760
761 return NULL;
762 }
763
764 static reloc_howto_type *
765 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
766 const char *r_name)
767 {
768 unsigned int i;
769
770 for (i = 0;
771 i < (sizeof (tilepro_elf_howto_table)
772 / sizeof (tilepro_elf_howto_table[0]));
773 i++)
774 if (tilepro_elf_howto_table[i].name != NULL
775 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
776 return &tilepro_elf_howto_table[i];
777
778 return NULL;
779 }
780
781 /* Set the howto pointer for an TILEPro ELF reloc. */
782
783 static bfd_boolean
784 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
785 arelent * cache_ptr,
786 Elf_Internal_Rela * dst)
787 {
788 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
789
790 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
791 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
792 else if (r_type - R_TILEPRO_GNU_VTINHERIT
793 <= ((unsigned int) R_TILEPRO_GNU_VTENTRY
794 - (unsigned int) R_TILEPRO_GNU_VTINHERIT))
795 cache_ptr->howto
796 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
797 else
798 {
799 /* xgettext:c-format */
800 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
801 abfd, r_type);
802 bfd_set_error (bfd_error_bad_value);
803 return FALSE;
804 }
805 return TRUE;
806 }
807
808 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
809
810 static const tilepro_create_func reloc_to_create_func[] =
811 {
812 /* The first fourteen relocation types don't correspond to operands */
813 NULL,
814 NULL,
815 NULL,
816 NULL,
817 NULL,
818 NULL,
819 NULL,
820 NULL,
821 NULL,
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827
828 /* The remaining relocations are used for immediate operands */
829 create_BrOff_X1,
830 create_JOffLong_X1,
831 create_JOffLong_X1,
832 create_Imm8_X0,
833 create_Imm8_Y0,
834 create_Imm8_X1,
835 create_Imm8_Y1,
836 create_MT_Imm15_X1,
837 create_MF_Imm15_X1,
838 create_Imm16_X0,
839 create_Imm16_X1,
840 create_Imm16_X0,
841 create_Imm16_X1,
842 create_Imm16_X0,
843 create_Imm16_X1,
844 create_Imm16_X0,
845 create_Imm16_X1,
846 create_Imm16_X0,
847 create_Imm16_X1,
848 create_Imm16_X0,
849 create_Imm16_X1,
850 create_Imm16_X0,
851 create_Imm16_X1,
852 create_Imm16_X0,
853 create_Imm16_X1,
854 create_Imm16_X0,
855 create_Imm16_X1,
856 create_Imm16_X0,
857 create_Imm16_X1,
858 create_Imm16_X0,
859 create_Imm16_X1,
860 create_Imm16_X0,
861 create_Imm16_X1,
862 create_MMStart_X0,
863 create_MMEnd_X0,
864 create_MMStart_X1,
865 create_MMEnd_X1,
866 create_ShAmt_X0,
867 create_ShAmt_X1,
868 create_ShAmt_Y0,
869 create_ShAmt_Y1,
870
871 create_Dest_Imm8_X1,
872 NULL,
873 NULL,
874 NULL,
875 NULL,
876 NULL,
877 NULL,
878 NULL,
879 NULL,
880 NULL,
881 NULL,
882
883 create_Imm16_X0,
884 create_Imm16_X1,
885 create_Imm16_X0,
886 create_Imm16_X1,
887 create_Imm16_X0,
888 create_Imm16_X1,
889 create_Imm16_X0,
890 create_Imm16_X1,
891 create_Imm16_X0,
892 create_Imm16_X1,
893 create_Imm16_X0,
894 create_Imm16_X1,
895 create_Imm16_X0,
896 create_Imm16_X1,
897 create_Imm16_X0,
898 create_Imm16_X1,
899
900 NULL,
901 NULL,
902 NULL,
903
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908 create_Imm16_X0,
909 create_Imm16_X1,
910 create_Imm16_X0,
911 create_Imm16_X1,
912 };
913
914 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
915
916 /* Support for core dump NOTE sections. */
917
918 static bfd_boolean
919 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
920 {
921 int offset;
922 size_t size;
923
924 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
925 return FALSE;
926
927 /* pr_cursig */
928 elf_tdata (abfd)->core->signal =
929 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
930
931 /* pr_pid */
932 elf_tdata (abfd)->core->pid =
933 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
934
935 /* pr_reg */
936 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
937 size = TILEPRO_GREGSET_T_SIZE;
938
939 /* Make a ".reg/999" section. */
940 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
941 size, note->descpos + offset);
942 }
943
944 static bfd_boolean
945 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
946 {
947 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
948 return FALSE;
949
950 elf_tdata (abfd)->core->program
951 = _bfd_elfcore_strndup (abfd,
952 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
953 16);
954 elf_tdata (abfd)->core->command
955 = _bfd_elfcore_strndup (abfd,
956 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
957 ELF_PR_PSARGS_SIZE);
958
959
960 /* Note that for some reason, a spurious space is tacked
961 onto the end of the args in some (at least one anyway)
962 implementations, so strip it off if it exists. */
963 {
964 char *command = elf_tdata (abfd)->core->command;
965 int n = strlen (command);
966
967 if (0 < n && command[n - 1] == ' ')
968 command[n - 1] = '\0';
969 }
970
971 return TRUE;
972 }
973
974
975 static void
976 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
977 {
978 Elf32_External_Rela *loc32;
979
980 loc32 = (Elf32_External_Rela *) s->contents;
981 loc32 += s->reloc_count++;
982 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
983 }
984
985 /* PLT/GOT stuff */
986
987 /* The procedure linkage table starts with the following header:
988
989 {
990 rli r29, r29, 16
991 lwadd r28, r27, 4
992 }
993 lw r27, r27
994 {
995 info 10 ## SP not offset, return PC in LR
996 jr r27
997 }
998
999 Subsequent entries are the following, jumping to the header at the end:
1000
1001 lnk r28
1002 1:
1003 {
1004 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1005 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1006 }
1007 {
1008 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1009 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1010 }
1011 {
1012 auli r29, zero, MY_PLT_INDEX
1013 lw r28, r28
1014 }
1015 {
1016 info 10 ## SP not offset, return PC in LR
1017 jr r28
1018 }
1019
1020 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1021 16 bits as an unsigned offset; if we use the low bits we would get an
1022 unwanted sign extension. The PLT header then rotates the index to get the
1023 right value, before calling the resolution routine. This computation can
1024 fit in unused bundle slots so it's free.
1025
1026 This code sequence lets the code at at the start of the PLT determine
1027 which PLT entry was executed by examining 'r29'.
1028
1029 Note that MY_PLT_INDEX skips over the header entries, so the first
1030 actual jump table entry has index zero.
1031 */
1032
1033 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1034 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1035
1036 #define PLT_HEADER_SIZE \
1037 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1038 #define PLT_ENTRY_SIZE \
1039 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1040
1041 /* The size in bytes of an entry in the global offset table. */
1042
1043 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1044
1045 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1046
1047
1048 static const bfd_byte
1049 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1050 {
1051 0x5d, 0x07, 0x03, 0x70,
1052 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1053 0x00, 0x50, 0xba, 0x6d,
1054 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1055 0xff, 0xaf, 0x10, 0x50,
1056 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1057 };
1058
1059 static const bfd_byte
1060 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1061 {
1062 0x00, 0x50, 0x16, 0x70,
1063 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1064 0x1c, 0x07, 0x00, 0xa0,
1065 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1066 0xdd, 0x0f, 0x00, 0x30,
1067 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1068 0xff, 0xaf, 0x10, 0x50,
1069 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1070 0x00, 0x00, 0x00, 0x00,
1071 0x00, 0x00, 0x00, 0x00,
1072 };
1073
1074 static const bfd_byte
1075 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1076 {
1077 0x00, 0x50, 0x16, 0x70,
1078 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1079 0x1c, 0x07, 0x00, 0xb0,
1080 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1081 0x1c, 0x07, 0x00, 0xa0,
1082 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1083 0xdd, 0x0f, 0x00, 0x30,
1084 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1085 0xff, 0xaf, 0x10, 0x50,
1086 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1087 };
1088
1089 static bfd_vma
1090 tilepro_ha16(bfd_vma vma)
1091 {
1092 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1093 }
1094
1095 static int
1096 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1097 bfd_vma *r_offset)
1098 {
1099 int plt_index = (offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE;
1100 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1101 tilepro_bundle_bits *pc;
1102
1103 /* Compute the distance from the got entry to the lnk. */
1104 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1105 + sgotplt->output_offset
1106 + got_offset
1107 - splt->output_section->vma
1108 - splt->output_offset
1109 - offset
1110 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1111
1112 /* Compute the distance to GOTPLT[0]. */
1113 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1114
1115 /* Check whether we can use the short plt entry with 16-bit offset. */
1116 bfd_boolean short_plt_entry =
1117 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1118
1119 /* Copy the plt entry template. */
1120 memcpy (splt->contents + offset,
1121 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1122 PLT_ENTRY_SIZE);
1123
1124 /* Write the immediate offsets. */
1125 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1126 pc++;
1127
1128 if (!short_plt_entry)
1129 {
1130 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1131 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1132 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1133 }
1134
1135 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1136 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1137 *pc++ |= create_Imm16_X0 (dist_got_entry)
1138 | create_Imm16_X1 (dist_got0);
1139
1140 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1141 *pc |= create_Imm16_X0 (plt_index);
1142
1143 /* Set the relocation offset. */
1144 *r_offset = got_offset;
1145
1146 return plt_index;
1147 }
1148
1149 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1150
1151
1152 /* Create an entry in an TILEPro ELF linker hash table. */
1153
1154 static struct bfd_hash_entry *
1155 link_hash_newfunc (struct bfd_hash_entry *entry,
1156 struct bfd_hash_table *table, const char *string)
1157 {
1158 /* Allocate the structure if it has not already been allocated by a
1159 subclass. */
1160 if (entry == NULL)
1161 {
1162 entry =
1163 bfd_hash_allocate (table,
1164 sizeof (struct tilepro_elf_link_hash_entry));
1165 if (entry == NULL)
1166 return entry;
1167 }
1168
1169 /* Call the allocation method of the superclass. */
1170 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1171 if (entry != NULL)
1172 {
1173 struct tilepro_elf_link_hash_entry *eh;
1174
1175 eh = (struct tilepro_elf_link_hash_entry *) entry;
1176 eh->tls_type = GOT_UNKNOWN;
1177 }
1178
1179 return entry;
1180 }
1181
1182 /* Create a TILEPRO ELF linker hash table. */
1183
1184 static struct bfd_link_hash_table *
1185 tilepro_elf_link_hash_table_create (bfd *abfd)
1186 {
1187 struct tilepro_elf_link_hash_table *ret;
1188 size_t amt = sizeof (struct tilepro_elf_link_hash_table);
1189
1190 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1191 if (ret == NULL)
1192 return NULL;
1193
1194 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1195 sizeof (struct tilepro_elf_link_hash_entry),
1196 TILEPRO_ELF_DATA))
1197 {
1198 free (ret);
1199 return NULL;
1200 }
1201
1202 return &ret->elf.root;
1203 }
1204
1205 /* Create the .got section. */
1206
1207 static bfd_boolean
1208 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1209 {
1210 flagword flags;
1211 asection *s, *s_got;
1212 struct elf_link_hash_entry *h;
1213 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1214 struct elf_link_hash_table *htab = elf_hash_table (info);
1215
1216 /* This function may be called more than once. */
1217 if (htab->sgot != NULL)
1218 return TRUE;
1219
1220 flags = bed->dynamic_sec_flags;
1221
1222 s = bfd_make_section_with_flags (abfd,
1223 (bed->rela_plts_and_copies_p
1224 ? ".rela.got" : ".rel.got"),
1225 (bed->dynamic_sec_flags
1226 | SEC_READONLY));
1227 if (s == NULL
1228 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1229 return FALSE;
1230 htab->srelgot = s;
1231
1232 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1233 if (s == NULL
1234 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1235 return FALSE;
1236 htab->sgot = s;
1237
1238 /* The first bit of the global offset table is the header. */
1239 s->size += bed->got_header_size;
1240
1241 if (bed->want_got_plt)
1242 {
1243 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1244 if (s == NULL
1245 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1246 return FALSE;
1247 htab->sgotplt = s;
1248
1249 /* Reserve room for the header. */
1250 s->size += GOTPLT_HEADER_SIZE;
1251 }
1252
1253 if (bed->want_got_sym)
1254 {
1255 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1256 section. We don't do this in the linker script because we don't want
1257 to define the symbol if we are not creating a global offset
1258 table. */
1259 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1260 "_GLOBAL_OFFSET_TABLE_");
1261 elf_hash_table (info)->hgot = h;
1262 if (h == NULL)
1263 return FALSE;
1264 }
1265
1266 return TRUE;
1267 }
1268
1269 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1270 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1271 hash table. */
1272
1273 static bfd_boolean
1274 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1275 struct bfd_link_info *info)
1276 {
1277 if (!tilepro_elf_create_got_section (dynobj, info))
1278 return FALSE;
1279
1280 return _bfd_elf_create_dynamic_sections (dynobj, info);
1281 }
1282
1283 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1284
1285 static void
1286 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1287 struct elf_link_hash_entry *dir,
1288 struct elf_link_hash_entry *ind)
1289 {
1290 struct tilepro_elf_link_hash_entry *edir, *eind;
1291
1292 edir = (struct tilepro_elf_link_hash_entry *) dir;
1293 eind = (struct tilepro_elf_link_hash_entry *) ind;
1294
1295 if (ind->root.type == bfd_link_hash_indirect
1296 && dir->got.refcount <= 0)
1297 {
1298 edir->tls_type = eind->tls_type;
1299 eind->tls_type = GOT_UNKNOWN;
1300 }
1301 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1302 }
1303
1304 static int
1305 tilepro_tls_translate_to_le (int r_type)
1306 {
1307 switch (r_type)
1308 {
1309 case R_TILEPRO_IMM16_X0_TLS_GD:
1310 case R_TILEPRO_IMM16_X0_TLS_IE:
1311 return R_TILEPRO_IMM16_X0_TLS_LE;
1312
1313 case R_TILEPRO_IMM16_X1_TLS_GD:
1314 case R_TILEPRO_IMM16_X1_TLS_IE:
1315 return R_TILEPRO_IMM16_X1_TLS_LE;
1316
1317 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1318 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1319 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1320
1321 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1322 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1323 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1324
1325 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1326 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1327 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1328
1329 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1330 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1331 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1332
1333 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1334 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1335 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1336
1337 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1338 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1339 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1340 }
1341 return r_type;
1342 }
1343
1344 static int
1345 tilepro_tls_translate_to_ie (int r_type)
1346 {
1347 switch (r_type)
1348 {
1349 case R_TILEPRO_IMM16_X0_TLS_GD:
1350 case R_TILEPRO_IMM16_X0_TLS_IE:
1351 return R_TILEPRO_IMM16_X0_TLS_IE;
1352
1353 case R_TILEPRO_IMM16_X1_TLS_GD:
1354 case R_TILEPRO_IMM16_X1_TLS_IE:
1355 return R_TILEPRO_IMM16_X1_TLS_IE;
1356
1357 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1358 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1359 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1360
1361 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1362 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1363 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1364
1365 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1366 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1367 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1368
1369 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1370 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1371 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1372
1373 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1374 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1375 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1376
1377 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1378 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1379 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1380 }
1381 return r_type;
1382 }
1383
1384 static int
1385 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1386 int is_local)
1387 {
1388 if (!bfd_link_executable (info))
1389 return r_type;
1390
1391 if (is_local)
1392 return tilepro_tls_translate_to_le (r_type);
1393 else
1394 return tilepro_tls_translate_to_ie (r_type);
1395 }
1396
1397 /* Look through the relocs for a section during the first phase, and
1398 allocate space in the global offset table or procedure linkage
1399 table. */
1400
1401 static bfd_boolean
1402 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1403 asection *sec, const Elf_Internal_Rela *relocs)
1404 {
1405 struct tilepro_elf_link_hash_table *htab;
1406 Elf_Internal_Shdr *symtab_hdr;
1407 struct elf_link_hash_entry **sym_hashes;
1408 const Elf_Internal_Rela *rel;
1409 const Elf_Internal_Rela *rel_end;
1410 asection *sreloc;
1411 int num_relocs;
1412
1413 if (bfd_link_relocatable (info))
1414 return TRUE;
1415
1416 htab = tilepro_elf_hash_table (info);
1417 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1418 sym_hashes = elf_sym_hashes (abfd);
1419
1420 sreloc = NULL;
1421
1422 num_relocs = sec->reloc_count;
1423
1424 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1425
1426 if (htab->elf.dynobj == NULL)
1427 htab->elf.dynobj = abfd;
1428
1429 rel_end = relocs + num_relocs;
1430 for (rel = relocs; rel < rel_end; rel++)
1431 {
1432 unsigned int r_type;
1433 unsigned int r_symndx;
1434 struct elf_link_hash_entry *h;
1435 int tls_type;
1436
1437 r_symndx = ELF32_R_SYM (rel->r_info);
1438 r_type = ELF32_R_TYPE (rel->r_info);
1439
1440 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1441 {
1442 /* xgettext:c-format */
1443 _bfd_error_handler (_("%pB: bad symbol index: %d"),
1444 abfd, r_symndx);
1445 return FALSE;
1446 }
1447
1448 if (r_symndx < symtab_hdr->sh_info)
1449 h = NULL;
1450 else
1451 {
1452 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1453 while (h->root.type == bfd_link_hash_indirect
1454 || h->root.type == bfd_link_hash_warning)
1455 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1456 }
1457
1458 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1459 switch (r_type)
1460 {
1461 case R_TILEPRO_IMM16_X0_TLS_LE:
1462 case R_TILEPRO_IMM16_X1_TLS_LE:
1463 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1464 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1465 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1466 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1467 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1468 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1469 if (!bfd_link_executable (info))
1470 goto r_tilepro_plt32;
1471 break;
1472
1473 case R_TILEPRO_IMM16_X0_TLS_GD:
1474 case R_TILEPRO_IMM16_X1_TLS_GD:
1475 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1476 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1477 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1478 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1479 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1480 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1481 BFD_ASSERT (bfd_link_pic (info));
1482 tls_type = GOT_TLS_GD;
1483 goto have_got_reference;
1484
1485 case R_TILEPRO_IMM16_X0_TLS_IE:
1486 case R_TILEPRO_IMM16_X1_TLS_IE:
1487 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1488 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1489 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1490 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1491 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1492 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1493 tls_type = GOT_TLS_IE;
1494 if (!bfd_link_executable (info))
1495 info->flags |= DF_STATIC_TLS;
1496 goto have_got_reference;
1497
1498 case R_TILEPRO_IMM16_X0_GOT:
1499 case R_TILEPRO_IMM16_X1_GOT:
1500 case R_TILEPRO_IMM16_X0_GOT_LO:
1501 case R_TILEPRO_IMM16_X1_GOT_LO:
1502 case R_TILEPRO_IMM16_X0_GOT_HI:
1503 case R_TILEPRO_IMM16_X1_GOT_HI:
1504 case R_TILEPRO_IMM16_X0_GOT_HA:
1505 case R_TILEPRO_IMM16_X1_GOT_HA:
1506 tls_type = GOT_NORMAL;
1507 /* Fall Through */
1508
1509 have_got_reference:
1510 /* This symbol requires a global offset table entry. */
1511 {
1512 int old_tls_type;
1513
1514 if (h != NULL)
1515 {
1516 h->got.refcount += 1;
1517 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1518 }
1519 else
1520 {
1521 bfd_signed_vma *local_got_refcounts;
1522
1523 /* This is a global offset table entry for a local symbol. */
1524 local_got_refcounts = elf_local_got_refcounts (abfd);
1525 if (local_got_refcounts == NULL)
1526 {
1527 bfd_size_type size;
1528
1529 size = symtab_hdr->sh_info;
1530 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1531 local_got_refcounts = ((bfd_signed_vma *)
1532 bfd_zalloc (abfd, size));
1533 if (local_got_refcounts == NULL)
1534 return FALSE;
1535 elf_local_got_refcounts (abfd) = local_got_refcounts;
1536 _bfd_tilepro_elf_local_got_tls_type (abfd)
1537 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1538 }
1539 local_got_refcounts[r_symndx] += 1;
1540 old_tls_type =
1541 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1542 }
1543
1544 /* If a TLS symbol is accessed using IE at least once,
1545 there is no point to use dynamic model for it. */
1546 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1547 && (old_tls_type != GOT_TLS_GD
1548 || tls_type != GOT_TLS_IE))
1549 {
1550 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1551 tls_type = old_tls_type;
1552 else
1553 {
1554 _bfd_error_handler
1555 /* xgettext:c-format */
1556 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1557 abfd, h ? h->root.root.string : "<local>");
1558 return FALSE;
1559 }
1560 }
1561
1562 if (old_tls_type != tls_type)
1563 {
1564 if (h != NULL)
1565 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1566 else
1567 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1568 tls_type;
1569 }
1570 }
1571
1572 if (htab->elf.sgot == NULL)
1573 {
1574 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1575 return FALSE;
1576 }
1577 break;
1578
1579 case R_TILEPRO_TLS_GD_CALL:
1580 if (!bfd_link_executable (info))
1581 {
1582 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1583 against __tls_get_addr. */
1584 struct bfd_link_hash_entry *bh = NULL;
1585 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1586 "__tls_get_addr", 0,
1587 bfd_und_section_ptr, 0,
1588 NULL, FALSE, FALSE,
1589 &bh))
1590 return FALSE;
1591 h = (struct elf_link_hash_entry *) bh;
1592 }
1593 else
1594 break;
1595 /* Fall through */
1596
1597 case R_TILEPRO_JOFFLONG_X1_PLT:
1598 /* This symbol requires a procedure linkage table entry. We
1599 actually build the entry in adjust_dynamic_symbol,
1600 because this might be a case of linking PIC code without
1601 linking in any dynamic objects, in which case we don't
1602 need to generate a procedure linkage table after all. */
1603
1604 if (h != NULL)
1605 {
1606 h->needs_plt = 1;
1607 h->plt.refcount += 1;
1608 }
1609 break;
1610
1611 case R_TILEPRO_32_PCREL:
1612 case R_TILEPRO_16_PCREL:
1613 case R_TILEPRO_8_PCREL:
1614 case R_TILEPRO_IMM16_X0_PCREL:
1615 case R_TILEPRO_IMM16_X1_PCREL:
1616 case R_TILEPRO_IMM16_X0_LO_PCREL:
1617 case R_TILEPRO_IMM16_X1_LO_PCREL:
1618 case R_TILEPRO_IMM16_X0_HI_PCREL:
1619 case R_TILEPRO_IMM16_X1_HI_PCREL:
1620 case R_TILEPRO_IMM16_X0_HA_PCREL:
1621 case R_TILEPRO_IMM16_X1_HA_PCREL:
1622 if (h != NULL)
1623 h->non_got_ref = 1;
1624
1625 if (h != NULL
1626 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1627 break;
1628 /* Fall through. */
1629
1630 case R_TILEPRO_32:
1631 case R_TILEPRO_16:
1632 case R_TILEPRO_8:
1633 case R_TILEPRO_LO16:
1634 case R_TILEPRO_HI16:
1635 case R_TILEPRO_HA16:
1636 case R_TILEPRO_COPY:
1637 case R_TILEPRO_GLOB_DAT:
1638 case R_TILEPRO_JMP_SLOT:
1639 case R_TILEPRO_RELATIVE:
1640 case R_TILEPRO_BROFF_X1:
1641 case R_TILEPRO_JOFFLONG_X1:
1642 case R_TILEPRO_IMM8_X0:
1643 case R_TILEPRO_IMM8_Y0:
1644 case R_TILEPRO_IMM8_X1:
1645 case R_TILEPRO_IMM8_Y1:
1646 case R_TILEPRO_DEST_IMM8_X1:
1647 case R_TILEPRO_MT_IMM15_X1:
1648 case R_TILEPRO_MF_IMM15_X1:
1649 case R_TILEPRO_IMM16_X0:
1650 case R_TILEPRO_IMM16_X1:
1651 case R_TILEPRO_IMM16_X0_LO:
1652 case R_TILEPRO_IMM16_X1_LO:
1653 case R_TILEPRO_IMM16_X0_HI:
1654 case R_TILEPRO_IMM16_X1_HI:
1655 case R_TILEPRO_IMM16_X0_HA:
1656 case R_TILEPRO_IMM16_X1_HA:
1657 case R_TILEPRO_MMSTART_X0:
1658 case R_TILEPRO_MMEND_X0:
1659 case R_TILEPRO_MMSTART_X1:
1660 case R_TILEPRO_MMEND_X1:
1661 case R_TILEPRO_SHAMT_X0:
1662 case R_TILEPRO_SHAMT_X1:
1663 case R_TILEPRO_SHAMT_Y0:
1664 case R_TILEPRO_SHAMT_Y1:
1665 if (h != NULL)
1666 h->non_got_ref = 1;
1667
1668 r_tilepro_plt32:
1669 if (h != NULL && !bfd_link_pic (info))
1670 {
1671 /* We may need a .plt entry if the function this reloc
1672 refers to is in a shared lib. */
1673 h->plt.refcount += 1;
1674 }
1675
1676 /* If we are creating a shared library, and this is a reloc
1677 against a global symbol, or a non PC relative reloc
1678 against a local symbol, then we need to copy the reloc
1679 into the shared library. However, if we are linking with
1680 -Bsymbolic, we do not need to copy a reloc against a
1681 global symbol which is defined in an object we are
1682 including in the link (i.e., DEF_REGULAR is set). At
1683 this point we have not seen all the input files, so it is
1684 possible that DEF_REGULAR is not set now but will be set
1685 later (it is never cleared). In case of a weak definition,
1686 DEF_REGULAR may be cleared later by a strong definition in
1687 a shared library. We account for that possibility below by
1688 storing information in the relocs_copied field of the hash
1689 table entry. A similar situation occurs when creating
1690 shared libraries and symbol visibility changes render the
1691 symbol local.
1692
1693 If on the other hand, we are creating an executable, we
1694 may need to keep relocations for symbols satisfied by a
1695 dynamic library if we manage to avoid copy relocs for the
1696 symbol. */
1697 if ((bfd_link_pic (info)
1698 && (sec->flags & SEC_ALLOC) != 0
1699 && (! tilepro_elf_howto_table[r_type].pc_relative
1700 || (h != NULL
1701 && (! info->symbolic
1702 || h->root.type == bfd_link_hash_defweak
1703 || !h->def_regular))))
1704 || (!bfd_link_pic (info)
1705 && (sec->flags & SEC_ALLOC) != 0
1706 && h != NULL
1707 && (h->root.type == bfd_link_hash_defweak
1708 || !h->def_regular)))
1709 {
1710 struct elf_dyn_relocs *p;
1711 struct elf_dyn_relocs **head;
1712
1713 /* When creating a shared object, we must copy these
1714 relocs into the output file. We create a reloc
1715 section in dynobj and make room for the reloc. */
1716 if (sreloc == NULL)
1717 {
1718 sreloc = _bfd_elf_make_dynamic_reloc_section
1719 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1720
1721 if (sreloc == NULL)
1722 return FALSE;
1723 }
1724
1725 /* If this is a global symbol, we count the number of
1726 relocations we need for this symbol. */
1727 if (h != NULL)
1728 head = &h->dyn_relocs;
1729 else
1730 {
1731 /* Track dynamic relocs needed for local syms too.
1732 We really need local syms available to do this
1733 easily. Oh well. */
1734
1735 asection *s;
1736 void *vpp;
1737 Elf_Internal_Sym *isym;
1738
1739 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1740 abfd, r_symndx);
1741 if (isym == NULL)
1742 return FALSE;
1743
1744 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1745 if (s == NULL)
1746 s = sec;
1747
1748 vpp = &elf_section_data (s)->local_dynrel;
1749 head = (struct elf_dyn_relocs **) vpp;
1750 }
1751
1752 p = *head;
1753 if (p == NULL || p->sec != sec)
1754 {
1755 size_t amt = sizeof *p;
1756 p = ((struct elf_dyn_relocs *)
1757 bfd_alloc (htab->elf.dynobj, amt));
1758 if (p == NULL)
1759 return FALSE;
1760 p->next = *head;
1761 *head = p;
1762 p->sec = sec;
1763 p->count = 0;
1764 p->pc_count = 0;
1765 }
1766
1767 p->count += 1;
1768 if (tilepro_elf_howto_table[r_type].pc_relative)
1769 p->pc_count += 1;
1770 }
1771
1772 break;
1773
1774 case R_TILEPRO_GNU_VTINHERIT:
1775 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1776 return FALSE;
1777 break;
1778
1779 case R_TILEPRO_GNU_VTENTRY:
1780 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1781 return FALSE;
1782 break;
1783
1784 default:
1785 break;
1786 }
1787 }
1788
1789 return TRUE;
1790 }
1791
1792 \f
1793 static asection *
1794 tilepro_elf_gc_mark_hook (asection *sec,
1795 struct bfd_link_info *info,
1796 Elf_Internal_Rela *rel,
1797 struct elf_link_hash_entry *h,
1798 Elf_Internal_Sym *sym)
1799 {
1800 if (h != NULL)
1801 {
1802 switch (ELF32_R_TYPE (rel->r_info))
1803 {
1804 case R_TILEPRO_GNU_VTINHERIT:
1805 case R_TILEPRO_GNU_VTENTRY:
1806 return NULL;
1807 }
1808 }
1809
1810 /* FIXME: The test here, in check_relocs and in relocate_section
1811 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1812 if (bfd_link_pic (info))
1813 {
1814 struct bfd_link_hash_entry *bh;
1815
1816 switch (ELF32_R_TYPE (rel->r_info))
1817 {
1818 case R_TILEPRO_TLS_GD_CALL:
1819 /* This reloc implicitly references __tls_get_addr. We know
1820 another reloc will reference the same symbol as the one
1821 on this reloc, so the real symbol and section will be
1822 gc marked when processing the other reloc. That lets
1823 us handle __tls_get_addr here. */
1824 bh = NULL;
1825 if (! _bfd_generic_link_add_one_symbol (info, sec->owner,
1826 "__tls_get_addr", 0,
1827 bfd_und_section_ptr,
1828 0, NULL, FALSE,
1829 FALSE, &bh))
1830 return NULL;
1831 h = (struct elf_link_hash_entry *) bh;
1832 BFD_ASSERT (h != NULL);
1833 h->mark = 1;
1834 if (h->is_weakalias)
1835 weakdef (h)->mark = 1;
1836 sym = NULL;
1837 }
1838 }
1839
1840 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1841 }
1842
1843 /* Adjust a symbol defined by a dynamic object and referenced by a
1844 regular object. The current definition is in some section of the
1845 dynamic object, but we're not including those sections. We have to
1846 change the definition to something the rest of the link can
1847 understand. */
1848
1849 static bfd_boolean
1850 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1851 struct elf_link_hash_entry *h)
1852 {
1853 struct tilepro_elf_link_hash_table *htab;
1854 asection *s, *srel;
1855
1856 htab = tilepro_elf_hash_table (info);
1857 BFD_ASSERT (htab != NULL);
1858
1859 /* Make sure we know what is going on here. */
1860 BFD_ASSERT (htab->elf.dynobj != NULL
1861 && (h->needs_plt
1862 || h->is_weakalias
1863 || (h->def_dynamic
1864 && h->ref_regular
1865 && !h->def_regular)));
1866
1867 /* If this is a function, put it in the procedure linkage table. We
1868 will fill in the contents of the procedure linkage table later
1869 (although we could actually do it here). */
1870 if (h->type == STT_FUNC || h->needs_plt)
1871 {
1872 if (h->plt.refcount <= 0
1873 || SYMBOL_CALLS_LOCAL (info, h)
1874 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1875 && h->root.type == bfd_link_hash_undefweak))
1876 {
1877 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
1878 reloc in an input file, but the symbol was never referred
1879 to by a dynamic object, or if all references were garbage
1880 collected. In such a case, we don't actually need to build
1881 a procedure linkage table, and we can just do a
1882 R_TILEPRO_JOFFLONG_X1 relocation instead. */
1883 h->plt.offset = (bfd_vma) -1;
1884 h->needs_plt = 0;
1885 }
1886
1887 return TRUE;
1888 }
1889 else
1890 h->plt.offset = (bfd_vma) -1;
1891
1892 /* If this is a weak symbol, and there is a real definition, the
1893 processor independent code will have arranged for us to see the
1894 real definition first, and we can just use the same value. */
1895 if (h->is_weakalias)
1896 {
1897 struct elf_link_hash_entry *def = weakdef (h);
1898 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1899 h->root.u.def.section = def->root.u.def.section;
1900 h->root.u.def.value = def->root.u.def.value;
1901 return TRUE;
1902 }
1903
1904 /* This is a reference to a symbol defined by a dynamic object which
1905 is not a function. */
1906
1907 /* If we are creating a shared library, we must presume that the
1908 only references to the symbol are via the global offset table.
1909 For such cases we need not do anything here; the relocations will
1910 be handled correctly by relocate_section. */
1911 if (bfd_link_pic (info))
1912 return TRUE;
1913
1914 /* If there are no references to this symbol that do not use the
1915 GOT, we don't need to generate a copy reloc. */
1916 if (!h->non_got_ref)
1917 return TRUE;
1918
1919 /* If -z nocopyreloc was given, we won't generate them either. */
1920 if (info->nocopyreloc)
1921 {
1922 h->non_got_ref = 0;
1923 return TRUE;
1924 }
1925
1926 /* If we don't find any dynamic relocs in read-only sections, then
1927 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1928 if (!_bfd_elf_readonly_dynrelocs (h))
1929 {
1930 h->non_got_ref = 0;
1931 return TRUE;
1932 }
1933
1934 /* We must allocate the symbol in our .dynbss section, which will
1935 become part of the .bss section of the executable. There will be
1936 an entry for this symbol in the .dynsym section. The dynamic
1937 object will contain position independent code, so all references
1938 from the dynamic object to this symbol will go through the global
1939 offset table. The dynamic linker will use the .dynsym entry to
1940 determine the address it must put in the global offset table, so
1941 both the dynamic object and the regular object will refer to the
1942 same memory location for the variable. */
1943
1944 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
1945 to copy the initial value out of the dynamic object and into the
1946 runtime process image. We need to remember the offset into the
1947 .rel.bss section we are going to use. */
1948 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
1949 {
1950 s = htab->elf.sdynrelro;
1951 srel = htab->elf.sreldynrelro;
1952 }
1953 else
1954 {
1955 s = htab->elf.sdynbss;
1956 srel = htab->elf.srelbss;
1957 }
1958 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1959 {
1960 srel->size += TILEPRO_ELF_RELA_BYTES;
1961 h->needs_copy = 1;
1962 }
1963
1964 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1965 }
1966
1967 /* Allocate space in .plt, .got and associated reloc sections for
1968 dynamic relocs. */
1969
1970 static bfd_boolean
1971 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
1972 {
1973 struct bfd_link_info *info;
1974 struct tilepro_elf_link_hash_table *htab;
1975 struct elf_dyn_relocs *p;
1976
1977 if (h->root.type == bfd_link_hash_indirect)
1978 return TRUE;
1979
1980 info = (struct bfd_link_info *) inf;
1981 htab = tilepro_elf_hash_table (info);
1982 BFD_ASSERT (htab != NULL);
1983
1984 if (htab->elf.dynamic_sections_created
1985 && h->plt.refcount > 0)
1986 {
1987 /* Make sure this symbol is output as a dynamic symbol.
1988 Undefined weak syms won't yet be marked as dynamic. */
1989 if (h->dynindx == -1
1990 && !h->forced_local)
1991 {
1992 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1993 return FALSE;
1994 }
1995
1996 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1997 {
1998 asection *s = htab->elf.splt;
1999
2000 /* Allocate room for the header. */
2001 if (s->size == 0)
2002 {
2003 s->size = PLT_ENTRY_SIZE;
2004 }
2005
2006 h->plt.offset = s->size;
2007
2008 /* If this symbol is not defined in a regular file, and we are
2009 not generating a shared library, then set the symbol to this
2010 location in the .plt. This is required to make function
2011 pointers compare as equal between the normal executable and
2012 the shared library. */
2013 if (! bfd_link_pic (info)
2014 && !h->def_regular)
2015 {
2016 h->root.u.def.section = s;
2017 h->root.u.def.value = h->plt.offset;
2018 }
2019
2020 /* Make room for this entry. */
2021 s->size += PLT_ENTRY_SIZE;
2022
2023 /* We also need to make an entry in the .got.plt section. */
2024 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2025
2026 /* We also need to make an entry in the .rela.plt section. */
2027 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2028 }
2029 else
2030 {
2031 h->plt.offset = (bfd_vma) -1;
2032 h->needs_plt = 0;
2033 }
2034 }
2035 else
2036 {
2037 h->plt.offset = (bfd_vma) -1;
2038 h->needs_plt = 0;
2039 }
2040
2041 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2042 requiring no TLS entry. */
2043 if (h->got.refcount > 0
2044 && bfd_link_executable (info)
2045 && h->dynindx == -1
2046 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2047 h->got.offset = (bfd_vma) -1;
2048 else if (h->got.refcount > 0)
2049 {
2050 asection *s;
2051 bfd_boolean dyn;
2052 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2053
2054 /* Make sure this symbol is output as a dynamic symbol.
2055 Undefined weak syms won't yet be marked as dynamic. */
2056 if (h->dynindx == -1
2057 && !h->forced_local)
2058 {
2059 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2060 return FALSE;
2061 }
2062
2063 s = htab->elf.sgot;
2064 h->got.offset = s->size;
2065 s->size += TILEPRO_BYTES_PER_WORD;
2066 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2067 if (tls_type == GOT_TLS_GD)
2068 s->size += TILEPRO_BYTES_PER_WORD;
2069 dyn = htab->elf.dynamic_sections_created;
2070 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2071 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2072 global. */
2073 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2074 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2075 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2076 bfd_link_pic (info),
2077 h))
2078 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2079 }
2080 else
2081 h->got.offset = (bfd_vma) -1;
2082
2083 if (h->dyn_relocs == NULL)
2084 return TRUE;
2085
2086 /* In the shared -Bsymbolic case, discard space allocated for
2087 dynamic pc-relative relocs against symbols which turn out to be
2088 defined in regular objects. For the normal shared case, discard
2089 space for pc-relative relocs that have become local due to symbol
2090 visibility changes. */
2091
2092 if (bfd_link_pic (info))
2093 {
2094 if (SYMBOL_CALLS_LOCAL (info, h))
2095 {
2096 struct elf_dyn_relocs **pp;
2097
2098 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2099 {
2100 p->count -= p->pc_count;
2101 p->pc_count = 0;
2102 if (p->count == 0)
2103 *pp = p->next;
2104 else
2105 pp = &p->next;
2106 }
2107 }
2108
2109 /* Also discard relocs on undefined weak syms with non-default
2110 visibility. */
2111 if (h->dyn_relocs != NULL
2112 && h->root.type == bfd_link_hash_undefweak)
2113 {
2114 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2115 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2116 h->dyn_relocs = NULL;
2117
2118 /* Make sure undefined weak symbols are output as a dynamic
2119 symbol in PIEs. */
2120 else if (h->dynindx == -1
2121 && !h->forced_local)
2122 {
2123 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2124 return FALSE;
2125 }
2126 }
2127 }
2128 else
2129 {
2130 /* For the non-shared case, discard space for relocs against
2131 symbols which turn out to need copy relocs or are not
2132 dynamic. */
2133
2134 if (!h->non_got_ref
2135 && ((h->def_dynamic
2136 && !h->def_regular)
2137 || (htab->elf.dynamic_sections_created
2138 && (h->root.type == bfd_link_hash_undefweak
2139 || h->root.type == bfd_link_hash_undefined))))
2140 {
2141 /* Make sure this symbol is output as a dynamic symbol.
2142 Undefined weak syms won't yet be marked as dynamic. */
2143 if (h->dynindx == -1
2144 && !h->forced_local)
2145 {
2146 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2147 return FALSE;
2148 }
2149
2150 /* If that succeeded, we know we'll be keeping all the
2151 relocs. */
2152 if (h->dynindx != -1)
2153 goto keep;
2154 }
2155
2156 h->dyn_relocs = NULL;
2157
2158 keep: ;
2159 }
2160
2161 /* Finally, allocate space. */
2162 for (p = h->dyn_relocs; p != NULL; p = p->next)
2163 {
2164 asection *sreloc = elf_section_data (p->sec)->sreloc;
2165 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2166 }
2167
2168 return TRUE;
2169 }
2170
2171 /* Return true if the dynamic symbol for a given section should be
2172 omitted when creating a shared library. */
2173
2174 static bfd_boolean
2175 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2176 struct bfd_link_info *info,
2177 asection *p)
2178 {
2179 /* We keep the .got section symbol so that explicit relocations
2180 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2181 can be turned into relocations against the .got symbol. */
2182 if (strcmp (p->name, ".got") == 0)
2183 return FALSE;
2184
2185 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2186 }
2187
2188 /* Set the sizes of the dynamic sections. */
2189
2190 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2191
2192 static bfd_boolean
2193 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2194 struct bfd_link_info *info)
2195 {
2196 (void)output_bfd;
2197
2198 struct tilepro_elf_link_hash_table *htab;
2199 bfd *dynobj;
2200 asection *s;
2201 bfd *ibfd;
2202
2203 htab = tilepro_elf_hash_table (info);
2204 BFD_ASSERT (htab != NULL);
2205 dynobj = htab->elf.dynobj;
2206 BFD_ASSERT (dynobj != NULL);
2207
2208 if (elf_hash_table (info)->dynamic_sections_created)
2209 {
2210 /* Set the contents of the .interp section to the interpreter. */
2211 if (bfd_link_executable (info) && !info->nointerp)
2212 {
2213 s = bfd_get_linker_section (dynobj, ".interp");
2214 BFD_ASSERT (s != NULL);
2215 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2216 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2217 }
2218 }
2219
2220 /* Set up .got offsets for local syms, and space for local dynamic
2221 relocs. */
2222 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2223 {
2224 bfd_signed_vma *local_got;
2225 bfd_signed_vma *end_local_got;
2226 char *local_tls_type;
2227 bfd_size_type locsymcount;
2228 Elf_Internal_Shdr *symtab_hdr;
2229 asection *srel;
2230
2231 if (! is_tilepro_elf (ibfd))
2232 continue;
2233
2234 for (s = ibfd->sections; s != NULL; s = s->next)
2235 {
2236 struct elf_dyn_relocs *p;
2237
2238 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2239 {
2240 if (!bfd_is_abs_section (p->sec)
2241 && bfd_is_abs_section (p->sec->output_section))
2242 {
2243 /* Input section has been discarded, either because
2244 it is a copy of a linkonce section or due to
2245 linker script /DISCARD/, so we'll be discarding
2246 the relocs too. */
2247 }
2248 else if (p->count != 0)
2249 {
2250 srel = elf_section_data (p->sec)->sreloc;
2251 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2252 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2253 {
2254 info->flags |= DF_TEXTREL;
2255
2256 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2257 p->sec->owner, p->sec);
2258 }
2259 }
2260 }
2261 }
2262
2263 local_got = elf_local_got_refcounts (ibfd);
2264 if (!local_got)
2265 continue;
2266
2267 symtab_hdr = &elf_symtab_hdr (ibfd);
2268 locsymcount = symtab_hdr->sh_info;
2269 end_local_got = local_got + locsymcount;
2270 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2271 s = htab->elf.sgot;
2272 srel = htab->elf.srelgot;
2273 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2274 {
2275 if (*local_got > 0)
2276 {
2277 *local_got = s->size;
2278 s->size += TILEPRO_BYTES_PER_WORD;
2279 if (*local_tls_type == GOT_TLS_GD)
2280 s->size += TILEPRO_BYTES_PER_WORD;
2281 if (bfd_link_pic (info)
2282 || *local_tls_type == GOT_TLS_GD
2283 || *local_tls_type == GOT_TLS_IE)
2284 srel->size += TILEPRO_ELF_RELA_BYTES;
2285 }
2286 else
2287 *local_got = (bfd_vma) -1;
2288 }
2289 }
2290
2291 /* Allocate global sym .plt and .got entries, and space for global
2292 sym dynamic relocs. */
2293 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2294
2295 if (elf_hash_table (info)->dynamic_sections_created)
2296 {
2297 /* If the .got section is more than 0x8000 bytes, we add
2298 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2299 bit relocations have a greater chance of working. */
2300 if (htab->elf.sgot->size >= 0x8000
2301 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2302 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2303 }
2304
2305 if (htab->elf.sgotplt)
2306 {
2307 struct elf_link_hash_entry *got;
2308 got = elf_link_hash_lookup (elf_hash_table (info),
2309 "_GLOBAL_OFFSET_TABLE_",
2310 FALSE, FALSE, FALSE);
2311
2312 /* Don't allocate .got.plt section if there are no GOT nor PLT
2313 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2314 if ((got == NULL
2315 || !got->ref_regular_nonweak)
2316 && (htab->elf.sgotplt->size
2317 == GOTPLT_HEADER_SIZE)
2318 && (htab->elf.splt == NULL
2319 || htab->elf.splt->size == 0)
2320 && (htab->elf.sgot == NULL
2321 || (htab->elf.sgot->size
2322 == get_elf_backend_data (output_bfd)->got_header_size)))
2323 htab->elf.sgotplt->size = 0;
2324 }
2325
2326 /* The check_relocs and adjust_dynamic_symbol entry points have
2327 determined the sizes of the various dynamic sections. Allocate
2328 memory for them. */
2329 for (s = dynobj->sections; s != NULL; s = s->next)
2330 {
2331 if ((s->flags & SEC_LINKER_CREATED) == 0)
2332 continue;
2333
2334 if (s == htab->elf.splt
2335 || s == htab->elf.sgot
2336 || s == htab->elf.sgotplt
2337 || s == htab->elf.sdynbss
2338 || s == htab->elf.sdynrelro)
2339 {
2340 /* Strip this section if we don't need it; see the
2341 comment below. */
2342 }
2343 else if (strncmp (s->name, ".rela", 5) == 0)
2344 {
2345 if (s->size != 0)
2346 {
2347 /* We use the reloc_count field as a counter if we need
2348 to copy relocs into the output file. */
2349 s->reloc_count = 0;
2350 }
2351 }
2352 else
2353 {
2354 /* It's not one of our sections. */
2355 continue;
2356 }
2357
2358 if (s->size == 0)
2359 {
2360 /* If we don't need this section, strip it from the
2361 output file. This is mostly to handle .rela.bss and
2362 .rela.plt. We must create both sections in
2363 create_dynamic_sections, because they must be created
2364 before the linker maps input sections to output
2365 sections. The linker does that before
2366 adjust_dynamic_symbol is called, and it is that
2367 function which decides whether anything needs to go
2368 into these sections. */
2369 s->flags |= SEC_EXCLUDE;
2370 continue;
2371 }
2372
2373 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2374 continue;
2375
2376 /* Allocate memory for the section contents. Zero the memory
2377 for the benefit of .rela.plt, which has 4 unused entries
2378 at the beginning, and we don't want garbage. */
2379 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2380 if (s->contents == NULL)
2381 return FALSE;
2382 }
2383
2384 return _bfd_elf_add_dynamic_tags (output_bfd, info, TRUE);
2385 }
2386 \f
2387 /* Return the base VMA address which should be subtracted from real addresses
2388 when resolving @dtpoff relocation.
2389 This is PT_TLS segment p_vaddr. */
2390
2391 static bfd_vma
2392 dtpoff_base (struct bfd_link_info *info)
2393 {
2394 /* If tls_sec is NULL, we should have signalled an error already. */
2395 if (elf_hash_table (info)->tls_sec == NULL)
2396 return 0;
2397 return elf_hash_table (info)->tls_sec->vma;
2398 }
2399
2400 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2401
2402 static bfd_vma
2403 tpoff (struct bfd_link_info *info, bfd_vma address)
2404 {
2405 struct elf_link_hash_table *htab = elf_hash_table (info);
2406
2407 /* If tls_sec is NULL, we should have signalled an error already. */
2408 if (htab->tls_sec == NULL)
2409 return 0;
2410
2411 return (address - htab->tls_sec->vma);
2412 }
2413
2414 /* Replace the MASK bits in ADDR with those in INSN, for the next
2415 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2416
2417 static void
2418 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2419 const bfd_byte *insn)
2420 {
2421 int i;
2422 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2423 {
2424 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2425 }
2426 }
2427
2428 /* Mask to extract the bits corresponding to an instruction in a
2429 specific pipe of a bundle. */
2430 static const bfd_byte insn_mask_X1[] = {
2431 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2432 };
2433
2434 /* Mask to extract the bits corresponding to an instruction in a
2435 specific pipe of a bundle, minus the destination operand and the
2436 first source operand. */
2437 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2438 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2439 };
2440
2441 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2442 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2443 };
2444
2445 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2446 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2447 };
2448
2449 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2450 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2451 };
2452
2453 /* Mask to extract the first source operand of an instruction. */
2454 static const bfd_byte srca_mask_X0[] = {
2455 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2456 };
2457
2458 static const bfd_byte srca_mask_X1[] = {
2459 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2460 };
2461
2462 /* Various instructions synthesized to support tls references. */
2463
2464 /* move r0, r0 in the X1 pipe, used for tls le. */
2465 static const bfd_byte insn_tls_le_move_X1[] = {
2466 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2467 };
2468
2469 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2470 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2471 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2472 };
2473
2474 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2475 static const bfd_byte insn_tls_ie_lw_X1[] = {
2476 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2477 };
2478
2479 /* add r0, r0, tp in various pipes, used for tls ie. */
2480 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2481 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2482 };
2483 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2484 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2485 };
2486
2487 /* move r0, r0 in various pipes, used for tls gd. */
2488 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2489 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2490 };
2491 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2492 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2493 };
2494
2495 /* Relocate an TILEPRO ELF section.
2496
2497 The RELOCATE_SECTION function is called by the new ELF backend linker
2498 to handle the relocations for a section.
2499
2500 The relocs are always passed as Rela structures.
2501
2502 This function is responsible for adjusting the section contents as
2503 necessary, and (if generating a relocatable output file) adjusting
2504 the reloc addend as necessary.
2505
2506 This function does not have to worry about setting the reloc
2507 address or the reloc symbol index.
2508
2509 LOCAL_SYMS is a pointer to the swapped in local symbols.
2510
2511 LOCAL_SECTIONS is an array giving the section in the input file
2512 corresponding to the st_shndx field of each local symbol.
2513
2514 The global hash table entry for the global symbols can be found
2515 via elf_sym_hashes (input_bfd).
2516
2517 When generating relocatable output, this function must handle
2518 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2519 going to be the section symbol corresponding to the output
2520 section, which means that the addend must be adjusted
2521 accordingly. */
2522
2523 static bfd_boolean
2524 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2525 bfd *input_bfd, asection *input_section,
2526 bfd_byte *contents, Elf_Internal_Rela *relocs,
2527 Elf_Internal_Sym *local_syms,
2528 asection **local_sections)
2529 {
2530 struct tilepro_elf_link_hash_table *htab;
2531 Elf_Internal_Shdr *symtab_hdr;
2532 struct elf_link_hash_entry **sym_hashes;
2533 bfd_vma *local_got_offsets;
2534 bfd_vma got_base;
2535 asection *sreloc;
2536 Elf_Internal_Rela *rel;
2537 Elf_Internal_Rela *relend;
2538 int num_relocs;
2539
2540 htab = tilepro_elf_hash_table (info);
2541 BFD_ASSERT (htab != NULL);
2542 symtab_hdr = &elf_symtab_hdr (input_bfd);
2543 sym_hashes = elf_sym_hashes (input_bfd);
2544 local_got_offsets = elf_local_got_offsets (input_bfd);
2545
2546 if (elf_hash_table (info)->hgot == NULL)
2547 got_base = 0;
2548 else
2549 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2550
2551 sreloc = elf_section_data (input_section)->sreloc;
2552
2553 rel = relocs;
2554 num_relocs = input_section->reloc_count;
2555 relend = relocs + num_relocs;
2556 for (; rel < relend; rel++)
2557 {
2558 int r_type, tls_type;
2559 bfd_boolean is_tls_iele, is_tls_le;
2560 reloc_howto_type *howto;
2561 unsigned long r_symndx;
2562 struct elf_link_hash_entry *h;
2563 Elf_Internal_Sym *sym;
2564 tilepro_create_func create_func;
2565 asection *sec;
2566 bfd_vma relocation;
2567 bfd_reloc_status_type r;
2568 const char *name;
2569 bfd_vma off;
2570 bfd_boolean is_plt = FALSE;
2571 bfd_boolean resolved_to_zero;
2572 bfd_boolean unresolved_reloc;
2573
2574 r_type = ELF32_R_TYPE (rel->r_info);
2575 if (r_type == R_TILEPRO_GNU_VTINHERIT
2576 || r_type == R_TILEPRO_GNU_VTENTRY)
2577 continue;
2578
2579 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2580 return _bfd_unrecognized_reloc (input_bfd, input_section, r_type);
2581
2582 howto = tilepro_elf_howto_table + r_type;
2583
2584 /* This is a final link. */
2585 r_symndx = ELF32_R_SYM (rel->r_info);
2586 h = NULL;
2587 sym = NULL;
2588 sec = NULL;
2589 unresolved_reloc = FALSE;
2590 if (r_symndx < symtab_hdr->sh_info)
2591 {
2592 sym = local_syms + r_symndx;
2593 sec = local_sections[r_symndx];
2594 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2595 }
2596 else
2597 {
2598 bfd_boolean warned ATTRIBUTE_UNUSED;
2599 bfd_boolean ignored ATTRIBUTE_UNUSED;
2600
2601 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2602 r_symndx, symtab_hdr, sym_hashes,
2603 h, sec, relocation,
2604 unresolved_reloc, warned, ignored);
2605 if (warned)
2606 {
2607 /* To avoid generating warning messages about truncated
2608 relocations, set the relocation's address to be the same as
2609 the start of this section. */
2610 if (input_section->output_section != NULL)
2611 relocation = input_section->output_section->vma;
2612 else
2613 relocation = 0;
2614 }
2615 }
2616
2617 if (sec != NULL && discarded_section (sec))
2618 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2619 rel, 1, relend, howto, 0, contents);
2620
2621 if (bfd_link_relocatable (info))
2622 continue;
2623
2624 if (h != NULL)
2625 name = h->root.root.string;
2626 else
2627 {
2628 name = (bfd_elf_string_from_elf_section
2629 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2630 if (name == NULL || *name == '\0')
2631 name = bfd_section_name (sec);
2632 }
2633
2634 switch (r_type)
2635 {
2636 case R_TILEPRO_TLS_GD_CALL:
2637 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2638 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2639 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2640 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2641 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2642 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2643 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2644 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2645 tls_type = GOT_UNKNOWN;
2646 if (h == NULL && local_got_offsets)
2647 tls_type =
2648 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2649 else if (h != NULL)
2650 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2651
2652 is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE);
2653 is_tls_le = is_tls_iele && (bfd_link_executable (info)
2654 && (h == NULL || h->dynindx == -1));
2655
2656 if (r_type == R_TILEPRO_TLS_GD_CALL)
2657 {
2658 if (is_tls_le)
2659 {
2660 /* GD -> LE */
2661 tilepro_replace_insn (contents + rel->r_offset,
2662 insn_mask_X1, insn_tls_le_move_X1);
2663 continue;
2664 }
2665 else if (is_tls_iele)
2666 {
2667 /* GD -> IE */
2668 tilepro_replace_insn (contents + rel->r_offset,
2669 insn_mask_X1, insn_tls_ie_lw_X1);
2670 continue;
2671 }
2672
2673 /* GD -> GD */
2674 h = (struct elf_link_hash_entry *)
2675 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2676 FALSE, TRUE);
2677 BFD_ASSERT (h != NULL);
2678 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2679 howto = tilepro_elf_howto_table + r_type;
2680 }
2681 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2682 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2683 {
2684 if (is_tls_le)
2685 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2686 insn_tls_le_move_zero_X0X1);
2687 }
2688 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2689 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2690 {
2691 if (is_tls_le)
2692 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2693 insn_tls_le_move_zero_X0X1);
2694 }
2695 else
2696 {
2697 const bfd_byte *mask = NULL;
2698 const bfd_byte *add_insn = NULL;
2699
2700 switch (r_type)
2701 {
2702 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2703 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2704 : insn_tls_gd_add_X0X1;
2705 mask = insn_mask_X0_no_dest_no_srca;
2706 break;
2707 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2708 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2709 : insn_tls_gd_add_X0X1;
2710 mask = insn_mask_X1_no_dest_no_srca;
2711 break;
2712 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2713 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2714 : insn_tls_gd_add_Y0Y1;
2715 mask = insn_mask_Y0_no_dest_no_srca;
2716 break;
2717 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2718 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2719 : insn_tls_gd_add_Y0Y1;
2720 mask = insn_mask_Y1_no_dest_no_srca;
2721 break;
2722 }
2723
2724 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2725
2726 continue;
2727 }
2728 break;
2729 case R_TILEPRO_TLS_IE_LOAD:
2730 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
2731 /* IE -> LE */
2732 tilepro_replace_insn (contents + rel->r_offset,
2733 insn_mask_X1_no_dest_no_srca,
2734 insn_tls_le_move_X1);
2735 else
2736 /* IE -> IE */
2737 tilepro_replace_insn (contents + rel->r_offset,
2738 insn_mask_X1_no_dest_no_srca,
2739 insn_tls_ie_lw_X1);
2740 continue;
2741 break;
2742 default:
2743 break;
2744 }
2745
2746 resolved_to_zero = (h != NULL
2747 && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h));
2748
2749 switch (r_type)
2750 {
2751 case R_TILEPRO_IMM16_X0_GOT:
2752 case R_TILEPRO_IMM16_X1_GOT:
2753 case R_TILEPRO_IMM16_X0_GOT_LO:
2754 case R_TILEPRO_IMM16_X1_GOT_LO:
2755 case R_TILEPRO_IMM16_X0_GOT_HI:
2756 case R_TILEPRO_IMM16_X1_GOT_HI:
2757 case R_TILEPRO_IMM16_X0_GOT_HA:
2758 case R_TILEPRO_IMM16_X1_GOT_HA:
2759 /* Relocation is to the entry for this symbol in the global
2760 offset table. */
2761 if (htab->elf.sgot == NULL)
2762 abort ();
2763
2764 if (h != NULL)
2765 {
2766 bfd_boolean dyn;
2767
2768 off = h->got.offset;
2769 BFD_ASSERT (off != (bfd_vma) -1);
2770 dyn = elf_hash_table (info)->dynamic_sections_created;
2771
2772 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2773 bfd_link_pic (info),
2774 h)
2775 || (bfd_link_pic (info)
2776 && SYMBOL_REFERENCES_LOCAL (info, h)))
2777 {
2778 /* This is actually a static link, or it is a
2779 -Bsymbolic link and the symbol is defined
2780 locally, or the symbol was forced to be local
2781 because of a version file. We must initialize
2782 this entry in the global offset table. Since the
2783 offset must always be a multiple
2784 of 4 for 32-bit, we use the least significant bit
2785 to record whether we have initialized it already.
2786
2787 When doing a dynamic link, we create a .rela.got
2788 relocation entry to initialize the value. This
2789 is done in the finish_dynamic_symbol routine. */
2790 if ((off & 1) != 0)
2791 off &= ~1;
2792 else
2793 {
2794 bfd_put_32 (output_bfd, relocation,
2795 htab->elf.sgot->contents + off);
2796 h->got.offset |= 1;
2797 }
2798 }
2799 else
2800 unresolved_reloc = FALSE;
2801 }
2802 else
2803 {
2804 BFD_ASSERT (local_got_offsets != NULL
2805 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2806
2807 off = local_got_offsets[r_symndx];
2808
2809 /* The offset must always be a multiple of 4 on 32-bit.
2810 We use the least significant bit to record
2811 whether we have already processed this entry. */
2812 if ((off & 1) != 0)
2813 off &= ~1;
2814 else
2815 {
2816 if (bfd_link_pic (info))
2817 {
2818 asection *s;
2819 Elf_Internal_Rela outrel;
2820
2821 /* We need to generate a R_TILEPRO_RELATIVE reloc
2822 for the dynamic linker. */
2823 s = htab->elf.srelgot;
2824 BFD_ASSERT (s != NULL);
2825
2826 outrel.r_offset = (htab->elf.sgot->output_section->vma
2827 + htab->elf.sgot->output_offset
2828 + off);
2829 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2830 outrel.r_addend = relocation;
2831 relocation = 0;
2832 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
2833 }
2834
2835 bfd_put_32 (output_bfd, relocation,
2836 htab->elf.sgot->contents + off);
2837 local_got_offsets[r_symndx] |= 1;
2838 }
2839 }
2840 relocation = off - got_base;
2841 break;
2842
2843 case R_TILEPRO_JOFFLONG_X1_PLT:
2844 /* Relocation is to the entry for this symbol in the
2845 procedure linkage table. */
2846 BFD_ASSERT (h != NULL);
2847
2848 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2849 {
2850 /* We didn't make a PLT entry for this symbol. This
2851 happens when statically linking PIC code, or when
2852 using -Bsymbolic. */
2853 break;
2854 }
2855
2856 relocation = (htab->elf.splt->output_section->vma
2857 + htab->elf.splt->output_offset
2858 + h->plt.offset);
2859 unresolved_reloc = FALSE;
2860 break;
2861
2862 case R_TILEPRO_32_PCREL:
2863 case R_TILEPRO_16_PCREL:
2864 case R_TILEPRO_8_PCREL:
2865 case R_TILEPRO_IMM16_X0_PCREL:
2866 case R_TILEPRO_IMM16_X1_PCREL:
2867 case R_TILEPRO_IMM16_X0_LO_PCREL:
2868 case R_TILEPRO_IMM16_X1_LO_PCREL:
2869 case R_TILEPRO_IMM16_X0_HI_PCREL:
2870 case R_TILEPRO_IMM16_X1_HI_PCREL:
2871 case R_TILEPRO_IMM16_X0_HA_PCREL:
2872 case R_TILEPRO_IMM16_X1_HA_PCREL:
2873 if (h != NULL
2874 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2875 break;
2876 /* Fall through. */
2877 case R_TILEPRO_32:
2878 case R_TILEPRO_16:
2879 case R_TILEPRO_8:
2880 case R_TILEPRO_LO16:
2881 case R_TILEPRO_HI16:
2882 case R_TILEPRO_HA16:
2883 case R_TILEPRO_COPY:
2884 case R_TILEPRO_GLOB_DAT:
2885 case R_TILEPRO_JMP_SLOT:
2886 case R_TILEPRO_RELATIVE:
2887 case R_TILEPRO_BROFF_X1:
2888 case R_TILEPRO_JOFFLONG_X1:
2889 case R_TILEPRO_IMM8_X0:
2890 case R_TILEPRO_IMM8_Y0:
2891 case R_TILEPRO_IMM8_X1:
2892 case R_TILEPRO_IMM8_Y1:
2893 case R_TILEPRO_DEST_IMM8_X1:
2894 case R_TILEPRO_MT_IMM15_X1:
2895 case R_TILEPRO_MF_IMM15_X1:
2896 case R_TILEPRO_IMM16_X0:
2897 case R_TILEPRO_IMM16_X1:
2898 case R_TILEPRO_IMM16_X0_LO:
2899 case R_TILEPRO_IMM16_X1_LO:
2900 case R_TILEPRO_IMM16_X0_HI:
2901 case R_TILEPRO_IMM16_X1_HI:
2902 case R_TILEPRO_IMM16_X0_HA:
2903 case R_TILEPRO_IMM16_X1_HA:
2904 case R_TILEPRO_MMSTART_X0:
2905 case R_TILEPRO_MMEND_X0:
2906 case R_TILEPRO_MMSTART_X1:
2907 case R_TILEPRO_MMEND_X1:
2908 case R_TILEPRO_SHAMT_X0:
2909 case R_TILEPRO_SHAMT_X1:
2910 case R_TILEPRO_SHAMT_Y0:
2911 case R_TILEPRO_SHAMT_Y1:
2912 if ((input_section->flags & SEC_ALLOC) == 0)
2913 break;
2914
2915 if ((bfd_link_pic (info)
2916 && (h == NULL
2917 || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2918 && !resolved_to_zero)
2919 || h->root.type != bfd_link_hash_undefweak)
2920 && (! howto->pc_relative
2921 || !SYMBOL_CALLS_LOCAL (info, h)))
2922 || (!bfd_link_pic (info)
2923 && h != NULL
2924 && h->dynindx != -1
2925 && !h->non_got_ref
2926 && ((h->def_dynamic
2927 && !h->def_regular)
2928 || h->root.type == bfd_link_hash_undefweak
2929 || h->root.type == bfd_link_hash_undefined)))
2930 {
2931 Elf_Internal_Rela outrel;
2932 bfd_boolean skip, relocate = FALSE;
2933
2934 /* When generating a shared object, these relocations
2935 are copied into the output file to be resolved at run
2936 time. */
2937
2938 BFD_ASSERT (sreloc != NULL);
2939
2940 skip = FALSE;
2941
2942 outrel.r_offset =
2943 _bfd_elf_section_offset (output_bfd, info, input_section,
2944 rel->r_offset);
2945 if (outrel.r_offset == (bfd_vma) -1)
2946 skip = TRUE;
2947 else if (outrel.r_offset == (bfd_vma) -2)
2948 skip = TRUE, relocate = TRUE;
2949 outrel.r_offset += (input_section->output_section->vma
2950 + input_section->output_offset);
2951
2952 switch (r_type)
2953 {
2954 case R_TILEPRO_32_PCREL:
2955 case R_TILEPRO_16_PCREL:
2956 case R_TILEPRO_8_PCREL:
2957 /* If the symbol is not dynamic, we should not keep
2958 a dynamic relocation. But an .rela.* slot has been
2959 allocated for it, output R_TILEPRO_NONE.
2960 FIXME: Add code tracking needed dynamic relocs as
2961 e.g. i386 has. */
2962 if (h->dynindx == -1)
2963 skip = TRUE, relocate = TRUE;
2964 break;
2965 }
2966
2967 if (skip)
2968 memset (&outrel, 0, sizeof outrel);
2969 /* h->dynindx may be -1 if the symbol was marked to
2970 become local. */
2971 else if (h != NULL &&
2972 h->dynindx != -1
2973 && (! is_plt
2974 || !bfd_link_pic (info)
2975 || !SYMBOLIC_BIND (info, h)
2976 || !h->def_regular))
2977 {
2978 BFD_ASSERT (h->dynindx != -1);
2979 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2980 outrel.r_addend = rel->r_addend;
2981 }
2982 else
2983 {
2984 if (r_type == R_TILEPRO_32)
2985 {
2986 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
2987 outrel.r_addend = relocation + rel->r_addend;
2988 }
2989 else
2990 {
2991 long indx;
2992
2993 outrel.r_addend = relocation + rel->r_addend;
2994
2995 if (is_plt)
2996 sec = htab->elf.splt;
2997
2998 if (bfd_is_abs_section (sec))
2999 indx = 0;
3000 else if (sec == NULL || sec->owner == NULL)
3001 {
3002 bfd_set_error (bfd_error_bad_value);
3003 return FALSE;
3004 }
3005 else
3006 {
3007 asection *osec;
3008
3009 /* We are turning this relocation into one
3010 against a section symbol. It would be
3011 proper to subtract the symbol's value,
3012 osec->vma, from the emitted reloc addend,
3013 but ld.so expects buggy relocs. */
3014 osec = sec->output_section;
3015 indx = elf_section_data (osec)->dynindx;
3016
3017 if (indx == 0)
3018 {
3019 osec = htab->elf.text_index_section;
3020 indx = elf_section_data (osec)->dynindx;
3021 }
3022
3023 /* FIXME: we really should be able to link non-pic
3024 shared libraries. */
3025 if (indx == 0)
3026 {
3027 BFD_FAIL ();
3028 _bfd_error_handler
3029 (_("%pB: probably compiled without -fPIC?"),
3030 input_bfd);
3031 bfd_set_error (bfd_error_bad_value);
3032 return FALSE;
3033 }
3034 }
3035
3036 outrel.r_info = ELF32_R_INFO (indx, r_type);
3037 }
3038 }
3039
3040 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3041
3042 /* This reloc will be computed at runtime, so there's no
3043 need to do anything now. */
3044 if (! relocate)
3045 continue;
3046 }
3047 break;
3048
3049 case R_TILEPRO_IMM16_X0_TLS_LE:
3050 case R_TILEPRO_IMM16_X1_TLS_LE:
3051 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3052 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3053 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3054 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3055 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3056 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3057 if (!bfd_link_executable (info))
3058 {
3059 Elf_Internal_Rela outrel;
3060 bfd_boolean skip;
3061
3062 BFD_ASSERT (sreloc != NULL);
3063 skip = FALSE;
3064 outrel.r_offset =
3065 _bfd_elf_section_offset (output_bfd, info, input_section,
3066 rel->r_offset);
3067 if (outrel.r_offset == (bfd_vma) -1)
3068 skip = TRUE;
3069 else if (outrel.r_offset == (bfd_vma) -2)
3070 skip = TRUE;
3071 outrel.r_offset += (input_section->output_section->vma
3072 + input_section->output_offset);
3073 if (skip)
3074 memset (&outrel, 0, sizeof outrel);
3075 else
3076 {
3077 outrel.r_info = ELF32_R_INFO (0, r_type);
3078 outrel.r_addend = relocation - dtpoff_base (info)
3079 + rel->r_addend;
3080 }
3081
3082 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3083 continue;
3084 }
3085 relocation = tpoff (info, relocation);
3086 break;
3087
3088 case R_TILEPRO_IMM16_X0_TLS_GD:
3089 case R_TILEPRO_IMM16_X1_TLS_GD:
3090 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3091 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3092 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3093 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3094 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3095 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3096 case R_TILEPRO_IMM16_X0_TLS_IE:
3097 case R_TILEPRO_IMM16_X1_TLS_IE:
3098 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3099 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3100 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3101 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3102 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3103 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3104 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3105 tls_type = GOT_UNKNOWN;
3106 if (h == NULL && local_got_offsets)
3107 tls_type
3108 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3109 else if (h != NULL)
3110 {
3111 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3112 if (bfd_link_executable (info)
3113 && h->dynindx == -1
3114 && tls_type == GOT_TLS_IE)
3115 r_type = tilepro_tls_translate_to_le (r_type);
3116 }
3117 if (tls_type == GOT_TLS_IE)
3118 r_type = tilepro_tls_translate_to_ie (r_type);
3119
3120 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3121 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3122 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3123 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3124 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3125 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3126 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3127 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3128 {
3129 relocation = tpoff (info, relocation);
3130 break;
3131 }
3132
3133 if (h != NULL)
3134 {
3135 off = h->got.offset;
3136 h->got.offset |= 1;
3137 }
3138 else
3139 {
3140 BFD_ASSERT (local_got_offsets != NULL);
3141 off = local_got_offsets[r_symndx];
3142 local_got_offsets[r_symndx] |= 1;
3143 }
3144
3145 if (htab->elf.sgot == NULL)
3146 abort ();
3147
3148 if ((off & 1) != 0)
3149 off &= ~1;
3150 else
3151 {
3152 Elf_Internal_Rela outrel;
3153 int indx = 0;
3154 bfd_boolean need_relocs = FALSE;
3155
3156 if (htab->elf.srelgot == NULL)
3157 abort ();
3158
3159 if (h != NULL)
3160 {
3161 bfd_boolean dyn;
3162 dyn = htab->elf.dynamic_sections_created;
3163
3164 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3165 bfd_link_pic (info),
3166 h)
3167 && (!bfd_link_pic (info)
3168 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3169 {
3170 indx = h->dynindx;
3171 }
3172 }
3173
3174 /* The GOT entries have not been initialized yet. Do it
3175 now, and emit any relocations. */
3176 if ((bfd_link_pic (info) || indx != 0)
3177 && (h == NULL
3178 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3179 || h->root.type != bfd_link_hash_undefweak))
3180 need_relocs = TRUE;
3181
3182 switch (r_type)
3183 {
3184 case R_TILEPRO_IMM16_X0_TLS_IE:
3185 case R_TILEPRO_IMM16_X1_TLS_IE:
3186 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3187 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3188 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3189 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3190 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3191 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3192 if (need_relocs) {
3193 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3194 outrel.r_offset = (htab->elf.sgot->output_section->vma
3195 + htab->elf.sgot->output_offset + off);
3196 outrel.r_addend = 0;
3197 if (indx == 0)
3198 outrel.r_addend = relocation - dtpoff_base (info);
3199 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3200 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3201 &outrel);
3202 } else {
3203 bfd_put_32 (output_bfd, tpoff (info, relocation),
3204 htab->elf.sgot->contents + off);
3205 }
3206 break;
3207
3208 case R_TILEPRO_IMM16_X0_TLS_GD:
3209 case R_TILEPRO_IMM16_X1_TLS_GD:
3210 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3211 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3212 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3213 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3214 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3215 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3216 if (need_relocs) {
3217 outrel.r_offset = (htab->elf.sgot->output_section->vma
3218 + htab->elf.sgot->output_offset + off);
3219 outrel.r_addend = 0;
3220 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3221 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3222 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3223 &outrel);
3224 if (indx == 0)
3225 {
3226 BFD_ASSERT (! unresolved_reloc);
3227 bfd_put_32 (output_bfd,
3228 relocation - dtpoff_base (info),
3229 (htab->elf.sgot->contents + off +
3230 TILEPRO_BYTES_PER_WORD));
3231 }
3232 else
3233 {
3234 bfd_put_32 (output_bfd, 0,
3235 (htab->elf.sgot->contents + off +
3236 TILEPRO_BYTES_PER_WORD));
3237 outrel.r_info = ELF32_R_INFO (indx,
3238 R_TILEPRO_TLS_DTPOFF32);
3239 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3240 tilepro_elf_append_rela_32 (output_bfd,
3241 htab->elf.srelgot, &outrel);
3242 }
3243 }
3244
3245 else {
3246 /* If we are not emitting relocations for a
3247 general dynamic reference, then we must be in a
3248 static link or an executable link with the
3249 symbol binding locally. Mark it as belonging
3250 to module 1, the executable. */
3251 bfd_put_32 (output_bfd, 1,
3252 htab->elf.sgot->contents + off );
3253 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3254 htab->elf.sgot->contents + off +
3255 TILEPRO_BYTES_PER_WORD);
3256 }
3257 break;
3258 }
3259 }
3260
3261 if (off >= (bfd_vma) -2)
3262 abort ();
3263
3264 relocation = off - got_base;
3265 unresolved_reloc = FALSE;
3266 howto = tilepro_elf_howto_table + r_type;
3267 break;
3268
3269 default:
3270 break;
3271 }
3272
3273 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3274 because such sections are not SEC_ALLOC and thus ld.so will
3275 not process them. */
3276 if (unresolved_reloc
3277 && !((input_section->flags & SEC_DEBUGGING) != 0
3278 && h->def_dynamic)
3279 && _bfd_elf_section_offset (output_bfd, info, input_section,
3280 rel->r_offset) != (bfd_vma) -1)
3281 _bfd_error_handler
3282 /* xgettext:c-format */
3283 (_("%pB(%pA+%#" PRIx64 "): "
3284 "unresolvable %s relocation against symbol `%s'"),
3285 input_bfd,
3286 input_section,
3287 (uint64_t) rel->r_offset,
3288 howto->name,
3289 h->root.root.string);
3290
3291 r = bfd_reloc_continue;
3292
3293 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3294 * we will increment bit 16. The howto->rightshift takes care
3295 * of the rest for us. */
3296 switch (r_type)
3297 {
3298 case R_TILEPRO_HA16:
3299 case R_TILEPRO_IMM16_X0_HA:
3300 case R_TILEPRO_IMM16_X1_HA:
3301 case R_TILEPRO_IMM16_X0_HA_PCREL:
3302 case R_TILEPRO_IMM16_X1_HA_PCREL:
3303 case R_TILEPRO_IMM16_X0_GOT_HA:
3304 case R_TILEPRO_IMM16_X1_GOT_HA:
3305 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3306 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3307 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3308 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3309 relocation += 0x8000;
3310 break;
3311 }
3312
3313 /* Get the operand creation function, if any. */
3314 create_func = reloc_to_create_func[r_type];
3315 if (create_func == NULL)
3316 {
3317 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3318 contents, rel->r_offset,
3319 relocation, rel->r_addend);
3320 }
3321 else
3322 {
3323 if (howto->pc_relative)
3324 {
3325 relocation -=
3326 input_section->output_section->vma + input_section->output_offset;
3327 if (howto->pcrel_offset)
3328 relocation -= rel->r_offset;
3329 }
3330
3331 bfd_byte *data;
3332
3333 /* Add the relocation addend if any to the final target value */
3334 relocation += rel->r_addend;
3335
3336 /* Do basic range checking */
3337 r = bfd_check_overflow (howto->complain_on_overflow,
3338 howto->bitsize,
3339 howto->rightshift,
3340 32,
3341 relocation);
3342
3343 /*
3344 * Write the relocated value out into the raw section data.
3345 * Don't put a relocation out in the .rela section.
3346 */
3347 tilepro_bundle_bits mask = create_func(-1);
3348 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3349
3350 /* Only touch bytes while the mask is not 0, so we
3351 don't write to out of bounds memory if this is actually
3352 a 16-bit switch instruction. */
3353 for (data = contents + rel->r_offset; mask != 0; data++)
3354 {
3355 bfd_byte byte_mask = (bfd_byte)mask;
3356 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3357 mask >>= 8;
3358 value >>= 8;
3359 }
3360 }
3361
3362 if (r != bfd_reloc_ok)
3363 {
3364 const char *msg = NULL;
3365
3366 switch (r)
3367 {
3368 case bfd_reloc_overflow:
3369 (*info->callbacks->reloc_overflow)
3370 (info, (h ? &h->root : NULL), name, howto->name,
3371 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3372 break;
3373
3374 case bfd_reloc_undefined:
3375 (*info->callbacks->undefined_symbol)
3376 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
3377 break;
3378
3379 case bfd_reloc_outofrange:
3380 msg = _("internal error: out of range error");
3381 break;
3382
3383 case bfd_reloc_notsupported:
3384 msg = _("internal error: unsupported relocation error");
3385 break;
3386
3387 case bfd_reloc_dangerous:
3388 msg = _("internal error: dangerous relocation");
3389 break;
3390
3391 default:
3392 msg = _("internal error: unknown error");
3393 break;
3394 }
3395
3396 if (msg)
3397 (*info->callbacks->warning) (info, msg, name, input_bfd,
3398 input_section, rel->r_offset);
3399 }
3400 }
3401
3402 return TRUE;
3403 }
3404
3405 /* Finish up dynamic symbol handling. We set the contents of various
3406 dynamic sections here. */
3407
3408 static bfd_boolean
3409 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3410 struct bfd_link_info *info,
3411 struct elf_link_hash_entry *h,
3412 Elf_Internal_Sym *sym)
3413 {
3414 struct tilepro_elf_link_hash_table *htab;
3415
3416 htab = tilepro_elf_hash_table (info);
3417 BFD_ASSERT (htab != NULL);
3418
3419 if (h->plt.offset != (bfd_vma) -1)
3420 {
3421 asection *splt;
3422 asection *srela;
3423 asection *sgotplt;
3424 Elf_Internal_Rela rela;
3425 bfd_byte *loc;
3426 bfd_vma r_offset;
3427
3428 int rela_index;
3429
3430 /* This symbol has an entry in the PLT. Set it up. */
3431
3432 BFD_ASSERT (h->dynindx != -1);
3433
3434 splt = htab->elf.splt;
3435 srela = htab->elf.srelplt;
3436 sgotplt = htab->elf.sgotplt;
3437
3438 if (splt == NULL || srela == NULL)
3439 abort ();
3440
3441 /* Fill in the entry in the procedure linkage table. */
3442 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3443 &r_offset);
3444
3445 /* Fill in the entry in the global offset table, which initially points
3446 to the beginning of the plt. */
3447 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3448 sgotplt->contents + r_offset);
3449
3450 /* Fill in the entry in the .rela.plt section. */
3451 rela.r_offset = (sgotplt->output_section->vma
3452 + sgotplt->output_offset
3453 + r_offset);
3454 rela.r_addend = 0;
3455 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3456
3457 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3458 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3459
3460 if (!h->def_regular)
3461 {
3462 /* Mark the symbol as undefined, rather than as defined in
3463 the .plt section. Leave the value alone. */
3464 sym->st_shndx = SHN_UNDEF;
3465 /* If the symbol is weak, we do need to clear the value.
3466 Otherwise, the PLT entry would provide a definition for
3467 the symbol even if the symbol wasn't defined anywhere,
3468 and so the symbol would never be NULL. */
3469 if (!h->ref_regular_nonweak)
3470 sym->st_value = 0;
3471 }
3472 }
3473
3474 if (h->got.offset != (bfd_vma) -1
3475 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3476 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3477 {
3478 asection *sgot;
3479 asection *srela;
3480 Elf_Internal_Rela rela;
3481
3482 /* This symbol has an entry in the GOT. Set it up. */
3483
3484 sgot = htab->elf.sgot;
3485 srela = htab->elf.srelgot;
3486 BFD_ASSERT (sgot != NULL && srela != NULL);
3487
3488 rela.r_offset = (sgot->output_section->vma
3489 + sgot->output_offset
3490 + (h->got.offset &~ (bfd_vma) 1));
3491
3492 /* If this is a -Bsymbolic link, and the symbol is defined
3493 locally, we just want to emit a RELATIVE reloc. Likewise if
3494 the symbol was forced to be local because of a version file.
3495 The entry in the global offset table will already have been
3496 initialized in the relocate_section function. */
3497 if (bfd_link_pic (info)
3498 && (info->symbolic || h->dynindx == -1)
3499 && h->def_regular)
3500 {
3501 asection *sec = h->root.u.def.section;
3502 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3503 rela.r_addend = (h->root.u.def.value
3504 + sec->output_section->vma
3505 + sec->output_offset);
3506 }
3507 else
3508 {
3509 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3510 rela.r_addend = 0;
3511 }
3512
3513 bfd_put_32 (output_bfd, 0,
3514 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3515 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3516 }
3517
3518 if (h->needs_copy)
3519 {
3520 asection *s;
3521 Elf_Internal_Rela rela;
3522
3523 /* This symbols needs a copy reloc. Set it up. */
3524 BFD_ASSERT (h->dynindx != -1);
3525
3526 rela.r_offset = (h->root.u.def.value
3527 + h->root.u.def.section->output_section->vma
3528 + h->root.u.def.section->output_offset);
3529 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3530 rela.r_addend = 0;
3531 if (h->root.u.def.section == htab->elf.sdynrelro)
3532 s = htab->elf.sreldynrelro;
3533 else
3534 s = htab->elf.srelbss;
3535 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3536 }
3537
3538 /* Mark some specially defined symbols as absolute. */
3539 if (h == htab->elf.hdynamic
3540 || (h == htab->elf.hgot || h == htab->elf.hplt))
3541 sym->st_shndx = SHN_ABS;
3542
3543 return TRUE;
3544 }
3545
3546 /* Finish up the dynamic sections. */
3547
3548 static bfd_boolean
3549 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3550 bfd *dynobj, asection *sdyn,
3551 asection *splt ATTRIBUTE_UNUSED)
3552 {
3553 Elf32_External_Dyn *dyncon, *dynconend;
3554 struct tilepro_elf_link_hash_table *htab;
3555
3556 htab = tilepro_elf_hash_table (info);
3557 BFD_ASSERT (htab != NULL);
3558 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3559 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3560 for (; dyncon < dynconend; dyncon++)
3561 {
3562 Elf_Internal_Dyn dyn;
3563 asection *s;
3564
3565 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3566
3567 switch (dyn.d_tag)
3568 {
3569 case DT_PLTGOT:
3570 s = htab->elf.sgotplt;
3571 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3572 break;
3573 case DT_JMPREL:
3574 s = htab->elf.srelplt;
3575 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3576 break;
3577 case DT_PLTRELSZ:
3578 s = htab->elf.srelplt;
3579 dyn.d_un.d_val = s->size;
3580 break;
3581 default:
3582 continue;
3583 }
3584
3585 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3586 }
3587 return TRUE;
3588 }
3589
3590 static bfd_boolean
3591 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3592 struct bfd_link_info *info)
3593 {
3594 bfd *dynobj;
3595 asection *sdyn;
3596 struct tilepro_elf_link_hash_table *htab;
3597
3598 htab = tilepro_elf_hash_table (info);
3599 BFD_ASSERT (htab != NULL);
3600 dynobj = htab->elf.dynobj;
3601
3602 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3603
3604 if (elf_hash_table (info)->dynamic_sections_created)
3605 {
3606 asection *splt;
3607 bfd_boolean ret;
3608
3609 splt = htab->elf.splt;
3610 BFD_ASSERT (splt != NULL && sdyn != NULL);
3611
3612 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3613
3614 if (!ret)
3615 return ret;
3616
3617 /* Fill in the first entry in the procedure linkage table. */
3618 if (splt->size > 0)
3619 {
3620 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3621 memset (splt->contents + PLT_HEADER_SIZE, 0,
3622 PLT_ENTRY_SIZE - PLT_HEADER_SIZE);
3623 }
3624
3625 if (elf_section_data (splt->output_section) != NULL)
3626 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3627 = PLT_ENTRY_SIZE;
3628 }
3629
3630 if (htab->elf.sgotplt)
3631 {
3632 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3633 {
3634 _bfd_error_handler
3635 (_("discarded output section: `%pA'"), htab->elf.sgotplt);
3636 return FALSE;
3637 }
3638
3639 if (htab->elf.sgotplt->size > 0)
3640 {
3641 /* Write the first two entries in .got.plt, needed for the dynamic
3642 linker. */
3643 bfd_put_32 (output_bfd, (bfd_vma) -1,
3644 htab->elf.sgotplt->contents);
3645 bfd_put_32 (output_bfd, (bfd_vma) 0,
3646 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3647 }
3648
3649 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3650 = GOT_ENTRY_SIZE;
3651 }
3652
3653 if (htab->elf.sgot)
3654 {
3655 if (htab->elf.sgot->size > 0)
3656 {
3657 /* Set the first entry in the global offset table to the address of
3658 the dynamic section. */
3659 bfd_vma val = (sdyn ?
3660 sdyn->output_section->vma + sdyn->output_offset :
3661 0);
3662 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3663 }
3664
3665 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3666 = GOT_ENTRY_SIZE;
3667 }
3668
3669 return TRUE;
3670 }
3671
3672 \f
3673
3674 /* Return address for Ith PLT stub in section PLT, for relocation REL
3675 or (bfd_vma) -1 if it should not be included. */
3676
3677 static bfd_vma
3678 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3679 const arelent *rel ATTRIBUTE_UNUSED)
3680 {
3681 return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
3682 }
3683
3684 static enum elf_reloc_type_class
3685 tilepro_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3686 const asection *rel_sec ATTRIBUTE_UNUSED,
3687 const Elf_Internal_Rela *rela)
3688 {
3689 switch ((int) ELF32_R_TYPE (rela->r_info))
3690 {
3691 case R_TILEPRO_RELATIVE:
3692 return reloc_class_relative;
3693 case R_TILEPRO_JMP_SLOT:
3694 return reloc_class_plt;
3695 case R_TILEPRO_COPY:
3696 return reloc_class_copy;
3697 default:
3698 return reloc_class_normal;
3699 }
3700 }
3701
3702 static int
3703 tilepro_additional_program_headers (bfd *abfd,
3704 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3705 {
3706 /* Each .intrpt section specified by the user adds another PT_LOAD
3707 header since the sections are discontiguous. */
3708 static const char intrpt_sections[4][9] =
3709 {
3710 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3711 };
3712 int count = 0;
3713 int i;
3714
3715 for (i = 0; i < 4; i++)
3716 {
3717 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3718 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3719 ++count;
3720 }
3721
3722 /* Add four "padding" headers in to leave room in case a custom linker
3723 script does something fancy. Otherwise ld complains that it ran
3724 out of program headers and refuses to link. */
3725 count += 4;
3726
3727 return count;
3728 }
3729
3730 #define ELF_ARCH bfd_arch_tilepro
3731 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3732 #define ELF_MACHINE_CODE EM_TILEPRO
3733 #define ELF_MAXPAGESIZE 0x10000
3734 #define ELF_COMMONPAGESIZE 0x10000
3735
3736 #define TARGET_LITTLE_SYM tilepro_elf32_vec
3737 #define TARGET_LITTLE_NAME "elf32-tilepro"
3738
3739 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3740
3741 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3742 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3743 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3744
3745 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3746 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3747 #define elf_backend_check_relocs tilepro_elf_check_relocs
3748 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3749 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3750 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3751 #define elf_backend_relocate_section tilepro_elf_relocate_section
3752 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3753 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3754 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3755 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
3756 #define elf_info_to_howto_rel NULL
3757 #define elf_info_to_howto tilepro_info_to_howto_rela
3758 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
3759 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
3760 #define elf_backend_additional_program_headers tilepro_additional_program_headers
3761
3762 #define bfd_elf32_mkobject tilepro_elf_mkobject
3763
3764 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3765
3766 #define elf_backend_can_gc_sections 1
3767 #define elf_backend_can_refcount 1
3768 #define elf_backend_want_got_plt 1
3769 #define elf_backend_plt_readonly 1
3770 /* Align PLT mod 64 byte L2 line size. */
3771 #define elf_backend_plt_alignment 6
3772 #define elf_backend_want_plt_sym 1
3773 #define elf_backend_got_header_size GOT_ENTRY_SIZE
3774 #define elf_backend_want_dynrelro 1
3775 #define elf_backend_rela_normal 1
3776 #define elf_backend_default_execstack 0
3777
3778 #include "elf32-target.h"
GDB Binutils - Deliverables
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