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opcodes/
[binutils-gdb.git] / bfd / elf32-tilepro.c
blobfa883e19d69a2acb55de4b763d84081d69646aa6
1 /* TILEPro-specific support for 32-bit ELF.
2 Copyright 2011, 2012 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 2, /* size (0 = byte, 1 = short, 2 = long) */
38 32, /* bitsize */
39 FALSE, /* pc_relative */
40 0, /* bitpos */
41 complain_overflow_bitfield, /* complain_on_overflow */
42 bfd_elf_generic_reloc, /* special_function */
43 "R_TILEPRO_NONE", /* name */
44 FALSE, /* partial_inplace */
45 0, /* src_mask */
46 0, /* dst_mask */
47 FALSE), /* pcrel_offset */
48
49 /* A 32 bit absolute relocation. */
50 HOWTO (R_TILEPRO_32, /* type */
51 0, /* rightshift */
52 2, /* size (0 = byte, 1 = short, 2 = long) */
53 32, /* bitsize */
54 FALSE, /* pc_relative */
55 0, /* bitpos */
56 complain_overflow_dont, /* complain_on_overflow */
57 bfd_elf_generic_reloc, /* special_function */
58 "R_TILEPRO_32", /* name */
59 FALSE, /* partial_inplace */
60 0, /* src_mask */
61 0xffffffff, /* dst_mask */
62 FALSE), /* pcrel_offset */
63
64 /* A 16 bit absolute relocation. */
65 HOWTO (R_TILEPRO_16, /* type */
66 0, /* rightshift */
67 1, /* size (0 = byte, 1 = short, 2 = long) */
68 16, /* bitsize */
69 FALSE, /* pc_relative */
70 0, /* bitpos */
71 complain_overflow_bitfield, /* complain_on_overflow */
72 bfd_elf_generic_reloc, /* special_function */
73 "R_TILEPRO_16", /* name */
74 FALSE, /* partial_inplace */
75 0, /* src_mask */
76 0xffff, /* dst_mask */
77 FALSE), /* pcrel_offset */
78
79 /* An 8 bit absolute relocation. */
80 HOWTO (R_TILEPRO_8, /* type */
81 0, /* rightshift */
82 0, /* size (0 = byte, 1 = short, 2 = long) */
83 8, /* bitsize */
84 FALSE, /* pc_relative */
85 0, /* bitpos */
86 complain_overflow_unsigned, /* complain_on_overflow */
87 bfd_elf_generic_reloc, /* special_function */
88 "R_TILEPRO_8", /* name */
89 FALSE, /* partial_inplace */
90 0, /* src_mask */
91 0xff, /* dst_mask */
92 FALSE), /* pcrel_offset */
93
94 /* A 32 bit pc-relative relocation. */
95 HOWTO (R_TILEPRO_32_PCREL,/* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
99 TRUE, /* pc_relative */
100 0, /* bitpos */
101 complain_overflow_dont, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_TILEPRO_32_PCREL", /* name */
104 FALSE, /* partial_inplace */
105 0, /* src_mask */
106 0xffffffff, /* dst_mask */
107 TRUE), /* pcrel_offset */
108
109 /* A 16 bit pc-relative relocation. */
110 HOWTO (R_TILEPRO_16_PCREL,/* type */
111 0, /* rightshift */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
113 16, /* bitsize */
114 TRUE, /* pc_relative */
115 0, /* bitpos */
116 complain_overflow_signed, /* complain_on_overflow */
117 bfd_elf_generic_reloc, /* special_function */
118 "R_TILEPRO_16_PCREL", /* name */
119 FALSE, /* partial_inplace */
120 0, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE), /* pcrel_offset */
123
124 /* An 8 bit pc-relative relocation. */
125 HOWTO (R_TILEPRO_8_PCREL, /* type */
126 0, /* rightshift */
127 0, /* size (0 = byte, 1 = short, 2 = long) */
128 8, /* bitsize */
129 TRUE, /* pc_relative */
130 0, /* bitpos */
131 complain_overflow_signed, /* complain_on_overflow */
132 bfd_elf_generic_reloc, /* special_function */
133 "R_TILEPRO_8_PCREL",/* name */
134 FALSE, /* partial_inplace */
135 0, /* src_mask */
136 0xff, /* dst_mask */
137 TRUE), /* pcrel_offset */
138
139 /* A 16 bit relocation without overflow. */
140 HOWTO (R_TILEPRO_LO16, /* type */
141 0, /* rightshift */
142 1, /* size (0 = byte, 1 = short, 2 = long) */
143 16, /* bitsize */
144 FALSE, /* pc_relative */
145 0, /* bitpos */
146 complain_overflow_dont,/* complain_on_overflow */
147 bfd_elf_generic_reloc, /* special_function */
148 "R_TILEPRO_LO16", /* name */
149 FALSE, /* partial_inplace */
150 0, /* src_mask */
151 0xffff, /* dst_mask */
152 FALSE), /* pcrel_offset */
153
154 /* The high order 16 bits of an address. */
155 HOWTO (R_TILEPRO_HI16, /* type */
156 16, /* rightshift */
157 1, /* size (0 = byte, 1 = short, 2 = long) */
158 16, /* bitsize */
159 FALSE, /* pc_relative */
160 0, /* bitpos */
161 complain_overflow_dont, /* complain_on_overflow */
162 bfd_elf_generic_reloc, /* special_function */
163 "R_TILEPRO_HI16", /* name */
164 FALSE, /* partial_inplace */
165 0, /* src_mask */
166 0xffff, /* dst_mask */
167 FALSE), /* pcrel_offset */
168
169 /* The high order 16 bits of an address, plus 1 if the contents of
170 the low 16 bits, treated as a signed number, is negative. */
171 HOWTO (R_TILEPRO_HA16, /* type */
172 16, /* rightshift */
173 1, /* size (0 = byte, 1 = short, 2 = long) */
174 16, /* bitsize */
175 FALSE, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_dont, /* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_TILEPRO_HA16", /* name */
180 FALSE, /* partial_inplace */
181 0, /* src_mask */
182 0xffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 HOWTO (R_TILEPRO_COPY, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 FALSE, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont, /* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_TILEPRO_COPY", /* name */
194 FALSE, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 TRUE), /* pcrel_offset */
198
199 HOWTO (R_TILEPRO_GLOB_DAT, /* type */
200 0, /* rightshift */
201 0, /* size (0 = byte, 1 = short, 2 = long) */
202 0, /* bitsize */
203 FALSE, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_dont, /* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_TILEPRO_GLOB_DAT", /* name */
208 FALSE, /* partial_inplace */
209 0, /* src_mask */
210 0, /* dst_mask */
211 TRUE), /* pcrel_offset */
212
213 HOWTO (R_TILEPRO_JMP_SLOT, /* type */
214 0, /* rightshift */
215 0, /* size (0 = byte, 1 = short, 2 = long) */
216 0, /* bitsize */
217 FALSE, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_dont, /* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_TILEPRO_JMP_SLOT", /* name */
222 FALSE, /* partial_inplace */
223 0, /* src_mask */
224 0, /* dst_mask */
225 TRUE), /* pcrel_offset */
226
227 HOWTO (R_TILEPRO_RELATIVE, /* type */
228 0, /* rightshift */
229 0, /* size (0 = byte, 1 = short, 2 = long) */
230 0, /* bitsize */
231 FALSE, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_dont, /* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_TILEPRO_RELATIVE", /* name */
236 FALSE, /* partial_inplace */
237 0, /* src_mask */
238 0, /* dst_mask */
239 TRUE), /* pcrel_offset */
240
241 HOWTO (R_TILEPRO_BROFF_X1, /* type */
242 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 17, /* bitsize */
245 TRUE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed, /* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_TILEPRO_BROFF_X1", /* name */
250 FALSE, /* partial_inplace */
251 0, /* src_mask */
252 -1, /* dst_mask */
253 TRUE), /* pcrel_offset */
254
255 HOWTO (R_TILEPRO_JOFFLONG_X1, /* type */
256 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
257 2, /* size (0 = byte, 1 = short, 2 = long) */
258 29, /* bitsize */
259 TRUE, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_TILEPRO_JOFFLONG_X1", /* name */
264 FALSE, /* partial_inplace */
265 0, /* src_mask */
266 -1, /* dst_mask */
267 TRUE), /* pcrel_offset */
268
269 HOWTO (R_TILEPRO_JOFFLONG_X1_PLT, /* type */
270 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
272 29, /* bitsize */
273 TRUE, /* pc_relative */
274 0, /* bitpos */
275 complain_overflow_signed,/* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_TILEPRO_JOFFLONG_X1_PLT", /* name */
278 FALSE, /* partial_inplace */
279 0, /* src_mask */
280 -1, /* dst_mask */
281 TRUE), /* pcrel_offset */
282
283 #define TILEPRO_IMM_HOWTO(name, size, bitsize) \
284 HOWTO (name, 0, size, bitsize, FALSE, 0, \
285 complain_overflow_signed, bfd_elf_generic_reloc, \
286 #name, FALSE, 0, -1, FALSE)
287
288 #define TILEPRO_UIMM_HOWTO(name, size, bitsize) \
289 HOWTO (name, 0, size, bitsize, FALSE, 0, \
290 complain_overflow_unsigned, bfd_elf_generic_reloc, \
291 #name, FALSE, 0, -1, FALSE)
292
293 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0, 0, 8),
294 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0, 0, 8),
295 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1, 0, 8),
296 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1, 0, 8),
297 TILEPRO_UIMM_HOWTO(R_TILEPRO_MT_IMM15_X1, 1, 15),
298 TILEPRO_UIMM_HOWTO(R_TILEPRO_MF_IMM15_X1, 1, 15),
299 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0, 1, 16),
300 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1, 1, 16),
301
302 #define TILEPRO_IMM16_HOWTO(name, rshift) \
303 HOWTO (name, rshift, 1, 16, FALSE, 0, \
304 complain_overflow_dont, bfd_elf_generic_reloc, \
305 #name, FALSE, 0, 0xffff, FALSE)
306
307 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_LO, 0),
308 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_LO, 0),
309 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HI, 16),
310 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HI, 16),
311 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_HA, 16),
312 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_HA, 16),
313
314 /* PC-relative offsets. */
315
316 HOWTO (R_TILEPRO_IMM16_X0_PCREL, /* type */
317 0, /* rightshift */
318 1, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
320 TRUE, /* pc_relative */
321 0, /* bitpos */
322 complain_overflow_signed, /* complain_on_overflow */
323 bfd_elf_generic_reloc, /* special_function */
324 "R_TILEPRO_IMM16_X0_PCREL",/* name */
325 FALSE, /* partial_inplace */
326 0, /* src_mask */
327 -1, /* dst_mask */
328 TRUE), /* pcrel_offset */
329
330 HOWTO (R_TILEPRO_IMM16_X1_PCREL, /* type */
331 0, /* rightshift */
332 1, /* size (0 = byte, 1 = short, 2 = long) */
333 16, /* bitsize */
334 TRUE, /* pc_relative */
335 0, /* bitpos */
336 complain_overflow_signed, /* complain_on_overflow */
337 bfd_elf_generic_reloc, /* special_function */
338 "R_TILEPRO_IMM16_X1_PCREL",/* name */
339 FALSE, /* partial_inplace */
340 0, /* src_mask */
341 -1, /* dst_mask */
342 TRUE), /* pcrel_offset */
343
344 #define TILEPRO_IMM16_HOWTO_PCREL(name, rshift) \
345 HOWTO (name, rshift, 1, 16, TRUE, 0, \
346 complain_overflow_dont, bfd_elf_generic_reloc, \
347 #name, FALSE, 0, 0xffff, TRUE)
348
349 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_LO_PCREL, 0),
350 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_LO_PCREL, 0),
351 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HI_PCREL, 16),
352 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HI_PCREL, 16),
353 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X0_HA_PCREL, 16),
354 TILEPRO_IMM16_HOWTO_PCREL (R_TILEPRO_IMM16_X1_HA_PCREL, 16),
355
356 /* Byte offset into GOT for a particular symbol. */
357 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X0_GOT, 1, 16),
358 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM16_X1_GOT, 1, 16),
359 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_LO, 0),
360 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_LO, 0),
361 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HI, 16),
362 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HI, 16),
363 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_GOT_HA, 16),
364 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_GOT_HA, 16),
365
366 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X0, 0, 5),
367 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X0, 0, 5),
368 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMSTART_X1, 0, 5),
369 TILEPRO_UIMM_HOWTO(R_TILEPRO_MMEND_X1, 0, 5),
370
371 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X0, 0, 5),
372 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_X1, 0, 5),
373 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y0, 0, 5),
374 TILEPRO_UIMM_HOWTO(R_TILEPRO_SHAMT_Y1, 0, 5),
375
376 TILEPRO_IMM_HOWTO(R_TILEPRO_DEST_IMM8_X1, 0, 8),
377
378 /* These relocs are currently not defined. */
379 EMPTY_HOWTO (56),
380 EMPTY_HOWTO (57),
381 EMPTY_HOWTO (58),
382 EMPTY_HOWTO (59),
383
384 HOWTO (R_TILEPRO_TLS_GD_CALL, /* type */
385 TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
387 29, /* bitsize */
388 TRUE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_signed,/* complain_on_overflow */
391 bfd_elf_generic_reloc, /* special_function */
392 "R_TILEPRO_TLS_GD_CALL", /* name */
393 FALSE, /* partial_inplace */
394 0, /* src_mask */
395 -1, /* dst_mask */
396 TRUE), /* pcrel_offset */
397
398 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X0_TLS_GD_ADD, 0, 8),
399 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_X1_TLS_GD_ADD, 0, 8),
400 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y0_TLS_GD_ADD, 0, 8),
401 TILEPRO_IMM_HOWTO(R_TILEPRO_IMM8_Y1_TLS_GD_ADD, 0, 8),
402 TILEPRO_IMM_HOWTO(R_TILEPRO_TLS_IE_LOAD, 0, 8),
403
404 /* Offsets into the GOT of TLS Descriptors. */
405
406 HOWTO (R_TILEPRO_IMM16_X0_TLS_GD,/* type */
407 0, /* rightshift */
408 1, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_signed, /* complain_on_overflow */
413 bfd_elf_generic_reloc, /* special_function */
414 "R_TILEPRO_IMM16_X0_TLS_GD",/* name */
415 FALSE, /* partial_inplace */
416 0, /* src_mask */
417 0xffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 HOWTO (R_TILEPRO_IMM16_X1_TLS_GD,/* type */
421 0, /* rightshift */
422 1, /* size (0 = byte, 1 = short, 2 = long) */
423 16, /* bitsize */
424 FALSE, /* pc_relative */
425 0, /* bitpos */
426 complain_overflow_signed, /* complain_on_overflow */
427 bfd_elf_generic_reloc, /* special_function */
428 "R_TILEPRO_IMM16_X1_TLS_GD",/* name */
429 FALSE, /* partial_inplace */
430 0, /* src_mask */
431 0xffff, /* dst_mask */
432 FALSE), /* pcrel_offset */
433
434 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_LO, 0),
435 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_LO, 0),
436 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HI, 16),
437 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HI, 16),
438 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_GD_HA, 16),
439 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_GD_HA, 16),
440
441 /* Offsets into the GOT of TLS Descriptors. */
442
443 HOWTO (R_TILEPRO_IMM16_X0_TLS_IE,/* type */
444 0, /* rightshift */
445 1, /* size (0 = byte, 1 = short, 2 = long) */
446 16, /* bitsize */
447 FALSE, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_signed, /* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_TILEPRO_IMM16_X0_TLS_IE",/* name */
452 FALSE, /* partial_inplace */
453 0, /* src_mask */
454 -1, /* dst_mask */
455 TRUE), /* pcrel_offset */
456
457 HOWTO (R_TILEPRO_IMM16_X1_TLS_IE,/* type */
458 0, /* rightshift */
459 1, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_signed, /* complain_on_overflow */
464 bfd_elf_generic_reloc, /* special_function */
465 "R_TILEPRO_IMM16_X1_TLS_IE",/* name */
466 FALSE, /* partial_inplace */
467 0, /* src_mask */
468 -1, /* dst_mask */
469 TRUE), /* pcrel_offset */
470
471 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_LO, 0),
472 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_LO, 0),
473 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HI, 16),
474 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HI, 16),
475 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_IE_HA, 16),
476 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_IE_HA, 16),
477
478 /* These are common with the Solaris TLS implementation. */
479 HOWTO(R_TILEPRO_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
480 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPMOD32",
481 FALSE, 0, 0, TRUE),
482 HOWTO(R_TILEPRO_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,
483 bfd_elf_generic_reloc, "R_TILEPRO_TLS_DTPOFF32",
484 FALSE, 0, 0xFFFFFFFF, TRUE),
485 HOWTO(R_TILEPRO_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont,
486 bfd_elf_generic_reloc, "R_TILEPRO_TLS_TPOFF32",
487 FALSE, 0, 0, TRUE),
488
489 HOWTO (R_TILEPRO_IMM16_X0_TLS_LE,/* type */
490 0, /* rightshift */
491 1, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
493 FALSE, /* pc_relative */
494 0, /* bitpos */
495 complain_overflow_signed, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_TILEPRO_IMM16_X0_TLS_LE",/* name */
498 FALSE, /* partial_inplace */
499 0, /* src_mask */
500 -1, /* dst_mask */
501 TRUE), /* pcrel_offset */
502
503 HOWTO (R_TILEPRO_IMM16_X1_TLS_LE,/* type */
504 0, /* rightshift */
505 1, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
507 FALSE, /* pc_relative */
508 0, /* bitpos */
509 complain_overflow_signed, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_TILEPRO_IMM16_X1_TLS_LE",/* name */
512 FALSE, /* partial_inplace */
513 0, /* src_mask */
514 -1, /* dst_mask */
515 TRUE), /* pcrel_offset */
516
517 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_LO, 0),
518 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_LO, 0),
519 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HI, 16),
520 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HI, 16),
521 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X0_TLS_LE_HA, 16),
522 TILEPRO_IMM16_HOWTO (R_TILEPRO_IMM16_X1_TLS_LE_HA, 16),
523 };
524
525 static reloc_howto_type tilepro_elf_howto_table2 [] =
526 {
527 /* GNU extension to record C++ vtable hierarchy */
528 HOWTO (R_TILEPRO_GNU_VTINHERIT, /* type */
529 0, /* rightshift */
530 2, /* size (0 = byte, 1 = short, 2 = long) */
531 0, /* bitsize */
532 FALSE, /* pc_relative */
533 0, /* bitpos */
534 complain_overflow_dont, /* complain_on_overflow */
535 NULL, /* special_function */
536 "R_TILEPRO_GNU_VTINHERIT", /* name */
537 FALSE, /* partial_inplace */
538 0, /* src_mask */
539 0, /* dst_mask */
540 FALSE), /* pcrel_offset */
541
542 /* GNU extension to record C++ vtable member usage */
543 HOWTO (R_TILEPRO_GNU_VTENTRY, /* type */
544 0, /* rightshift */
545 2, /* size (0 = byte, 1 = short, 2 = long) */
546 0, /* bitsize */
547 FALSE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_dont, /* complain_on_overflow */
550 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
551 "R_TILEPRO_GNU_VTENTRY", /* name */
552 FALSE, /* partial_inplace */
553 0, /* src_mask */
554 0, /* dst_mask */
555 FALSE), /* pcrel_offset */
556
557 };
558 \f
559 /* Map BFD reloc types to TILEPRO ELF reloc types. */
560
561 typedef struct tilepro_reloc_map
562 {
563 bfd_reloc_code_real_type bfd_reloc_val;
564 unsigned int tilepro_reloc_val;
565 reloc_howto_type * table;
566 } reloc_map;
567
568 static const reloc_map tilepro_reloc_map [] =
569 {
570 #define TH_REMAP(bfd, tilepro) \
571 { bfd, tilepro, tilepro_elf_howto_table },
572
573 /* Standard relocations. */
574 TH_REMAP (BFD_RELOC_NONE, R_TILEPRO_NONE)
575 TH_REMAP (BFD_RELOC_32, R_TILEPRO_32)
576 TH_REMAP (BFD_RELOC_16, R_TILEPRO_16)
577 TH_REMAP (BFD_RELOC_8, R_TILEPRO_8)
578 TH_REMAP (BFD_RELOC_32_PCREL, R_TILEPRO_32_PCREL)
579 TH_REMAP (BFD_RELOC_16_PCREL, R_TILEPRO_16_PCREL)
580 TH_REMAP (BFD_RELOC_8_PCREL, R_TILEPRO_8_PCREL)
581 TH_REMAP (BFD_RELOC_LO16, R_TILEPRO_LO16)
582 TH_REMAP (BFD_RELOC_HI16, R_TILEPRO_HI16)
583 TH_REMAP (BFD_RELOC_HI16_S, R_TILEPRO_HA16)
584
585 /* Custom relocations. */
586 TH_REMAP (BFD_RELOC_TILEPRO_COPY, R_TILEPRO_COPY)
587 TH_REMAP (BFD_RELOC_TILEPRO_GLOB_DAT, R_TILEPRO_GLOB_DAT)
588 TH_REMAP (BFD_RELOC_TILEPRO_JMP_SLOT, R_TILEPRO_JMP_SLOT)
589 TH_REMAP (BFD_RELOC_TILEPRO_RELATIVE, R_TILEPRO_RELATIVE)
590 TH_REMAP (BFD_RELOC_TILEPRO_BROFF_X1, R_TILEPRO_BROFF_X1)
591 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1, R_TILEPRO_JOFFLONG_X1)
592 TH_REMAP (BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT, R_TILEPRO_JOFFLONG_X1_PLT)
593 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0, R_TILEPRO_IMM8_X0)
594 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0, R_TILEPRO_IMM8_Y0)
595 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1, R_TILEPRO_IMM8_X1)
596 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1, R_TILEPRO_IMM8_Y1)
597 TH_REMAP (BFD_RELOC_TILEPRO_DEST_IMM8_X1, R_TILEPRO_DEST_IMM8_X1)
598 TH_REMAP (BFD_RELOC_TILEPRO_MT_IMM15_X1, R_TILEPRO_MT_IMM15_X1)
599 TH_REMAP (BFD_RELOC_TILEPRO_MF_IMM15_X1, R_TILEPRO_MF_IMM15_X1)
600 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0, R_TILEPRO_IMM16_X0)
601 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1, R_TILEPRO_IMM16_X1)
602 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO, R_TILEPRO_IMM16_X0_LO)
603 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO, R_TILEPRO_IMM16_X1_LO)
604 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI, R_TILEPRO_IMM16_X0_HI)
605 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI, R_TILEPRO_IMM16_X1_HI)
606 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA, R_TILEPRO_IMM16_X0_HA)
607 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA, R_TILEPRO_IMM16_X1_HA)
608
609 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_PCREL, R_TILEPRO_IMM16_X0_PCREL)
610 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_PCREL, R_TILEPRO_IMM16_X1_PCREL)
611 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL, R_TILEPRO_IMM16_X0_LO_PCREL)
612 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL, R_TILEPRO_IMM16_X1_LO_PCREL)
613 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL, R_TILEPRO_IMM16_X0_HI_PCREL)
614 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL, R_TILEPRO_IMM16_X1_HI_PCREL)
615 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL, R_TILEPRO_IMM16_X0_HA_PCREL)
616 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL, R_TILEPRO_IMM16_X1_HA_PCREL)
617
618 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT, R_TILEPRO_IMM16_X0_GOT)
619 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT, R_TILEPRO_IMM16_X1_GOT)
620 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_LO, R_TILEPRO_IMM16_X0_GOT_LO)
621 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_LO, R_TILEPRO_IMM16_X1_GOT_LO)
622 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HI, R_TILEPRO_IMM16_X0_GOT_HI)
623 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HI, R_TILEPRO_IMM16_X1_GOT_HI)
624 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_GOT_HA, R_TILEPRO_IMM16_X0_GOT_HA)
625 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_GOT_HA, R_TILEPRO_IMM16_X1_GOT_HA)
626
627 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X0, R_TILEPRO_MMSTART_X0)
628 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X0, R_TILEPRO_MMEND_X0)
629 TH_REMAP (BFD_RELOC_TILEPRO_MMSTART_X1, R_TILEPRO_MMSTART_X1)
630 TH_REMAP (BFD_RELOC_TILEPRO_MMEND_X1, R_TILEPRO_MMEND_X1)
631 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X0, R_TILEPRO_SHAMT_X0)
632 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_X1, R_TILEPRO_SHAMT_X1)
633 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y0, R_TILEPRO_SHAMT_Y0)
634 TH_REMAP (BFD_RELOC_TILEPRO_SHAMT_Y1, R_TILEPRO_SHAMT_Y1)
635
636 TH_REMAP (BFD_RELOC_TILEPRO_TLS_GD_CALL, R_TILEPRO_TLS_GD_CALL)
637 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD, R_TILEPRO_IMM8_X0_TLS_GD_ADD)
638 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD, R_TILEPRO_IMM8_X1_TLS_GD_ADD)
639 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD, R_TILEPRO_IMM8_Y0_TLS_GD_ADD)
640 TH_REMAP (BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD, R_TILEPRO_IMM8_Y1_TLS_GD_ADD)
641 TH_REMAP (BFD_RELOC_TILEPRO_TLS_IE_LOAD, R_TILEPRO_TLS_IE_LOAD)
642
643 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD, R_TILEPRO_IMM16_X0_TLS_GD)
644 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD, R_TILEPRO_IMM16_X1_TLS_GD)
645 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO, R_TILEPRO_IMM16_X0_TLS_GD_LO)
646 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO, R_TILEPRO_IMM16_X1_TLS_GD_LO)
647 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI, R_TILEPRO_IMM16_X0_TLS_GD_HI)
648 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI, R_TILEPRO_IMM16_X1_TLS_GD_HI)
649 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA, R_TILEPRO_IMM16_X0_TLS_GD_HA)
650 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA, R_TILEPRO_IMM16_X1_TLS_GD_HA)
651
652 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE, R_TILEPRO_IMM16_X0_TLS_IE)
653 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE, R_TILEPRO_IMM16_X1_TLS_IE)
654 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO, R_TILEPRO_IMM16_X0_TLS_IE_LO)
655 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO, R_TILEPRO_IMM16_X1_TLS_IE_LO)
656 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI, R_TILEPRO_IMM16_X0_TLS_IE_HI)
657 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI, R_TILEPRO_IMM16_X1_TLS_IE_HI)
658 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA, R_TILEPRO_IMM16_X0_TLS_IE_HA)
659 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA, R_TILEPRO_IMM16_X1_TLS_IE_HA)
660
661 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPMOD32, R_TILEPRO_TLS_DTPMOD32)
662 TH_REMAP (BFD_RELOC_TILEPRO_TLS_DTPOFF32, R_TILEPRO_TLS_DTPOFF32)
663 TH_REMAP (BFD_RELOC_TILEPRO_TLS_TPOFF32, R_TILEPRO_TLS_TPOFF32)
664
665 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE, R_TILEPRO_IMM16_X0_TLS_LE)
666 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE, R_TILEPRO_IMM16_X1_TLS_LE)
667 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO, R_TILEPRO_IMM16_X0_TLS_LE_LO)
668 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO, R_TILEPRO_IMM16_X1_TLS_LE_LO)
669 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI, R_TILEPRO_IMM16_X0_TLS_LE_HI)
670 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI, R_TILEPRO_IMM16_X1_TLS_LE_HI)
671 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA, R_TILEPRO_IMM16_X0_TLS_LE_HA)
672 TH_REMAP (BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA, R_TILEPRO_IMM16_X1_TLS_LE_HA)
673
674 #undef TH_REMAP
675
676 { BFD_RELOC_VTABLE_INHERIT, R_TILEPRO_GNU_VTINHERIT, tilepro_elf_howto_table2 },
677 { BFD_RELOC_VTABLE_ENTRY, R_TILEPRO_GNU_VTENTRY, tilepro_elf_howto_table2 },
678 };
679
680
681
682 /* The TILEPro linker needs to keep track of the number of relocs that it
683 decides to copy as dynamic relocs in check_relocs for each symbol.
684 This is so that it can later discard them if they are found to be
685 unnecessary. We store the information in a field extending the
686 regular ELF linker hash table. */
687
688 struct tilepro_elf_dyn_relocs
689 {
690 struct tilepro_elf_dyn_relocs *next;
691
692 /* The input section of the reloc. */
693 asection *sec;
694
695 /* Total number of relocs copied for the input section. */
696 bfd_size_type count;
697
698 /* Number of pc-relative relocs copied for the input section. */
699 bfd_size_type pc_count;
700 };
701
702 /* TILEPRO ELF linker hash entry. */
703
704 struct tilepro_elf_link_hash_entry
705 {
706 struct elf_link_hash_entry elf;
707
708 /* Track dynamic relocs copied for this symbol. */
709 struct tilepro_elf_dyn_relocs *dyn_relocs;
710
711 #define GOT_UNKNOWN 0
712 #define GOT_NORMAL 1
713 #define GOT_TLS_GD 2
714 #define GOT_TLS_IE 4
715 unsigned char tls_type;
716 };
717
718 #define tilepro_elf_hash_entry(ent) \
719 ((struct tilepro_elf_link_hash_entry *)(ent))
720
721 struct _bfd_tilepro_elf_obj_tdata
722 {
723 struct elf_obj_tdata root;
724
725 /* tls_type for each local got entry. */
726 char *local_got_tls_type;
727 };
728
729 #define _bfd_tilepro_elf_tdata(abfd) \
730 ((struct _bfd_tilepro_elf_obj_tdata *) (abfd)->tdata.any)
731
732 #define _bfd_tilepro_elf_local_got_tls_type(abfd) \
733 (_bfd_tilepro_elf_tdata (abfd)->local_got_tls_type)
734
735 #define is_tilepro_elf(bfd) \
736 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
737 && elf_tdata (bfd) != NULL \
738 && elf_object_id (bfd) == TILEPRO_ELF_DATA)
739
740 #include "elf/common.h"
741 #include "elf/internal.h"
742
743 struct tilepro_elf_link_hash_table
744 {
745 struct elf_link_hash_table elf;
746
747 /* Short-cuts to get to dynamic linker sections. */
748 asection *sdynbss;
749 asection *srelbss;
750
751 /* Small local sym to section mapping cache. */
752 struct sym_cache sym_cache;
753 };
754
755 /* Get the Tilepro ELF linker hash table from a link_info structure. */
756 #define tilepro_elf_hash_table(p) \
757 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
758 == TILEPRO_ELF_DATA \
759 ? ((struct tilepro_elf_link_hash_table *) ((p)->hash)) : NULL)
760
761 static reloc_howto_type *
762 tilepro_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
763 bfd_reloc_code_real_type code)
764 {
765 unsigned int i;
766
767 for (i = ARRAY_SIZE (tilepro_reloc_map); --i;)
768 {
769 const reloc_map * entry;
770
771 entry = tilepro_reloc_map + i;
772
773 if (entry->bfd_reloc_val == code)
774 return entry->table + (entry->tilepro_reloc_val
775 - entry->table[0].type);
776 }
777
778 return NULL;
779 }
780
781 static reloc_howto_type *
782 tilepro_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
783 const char *r_name)
784 {
785 unsigned int i;
786
787 for (i = 0;
788 i < (sizeof (tilepro_elf_howto_table)
789 / sizeof (tilepro_elf_howto_table[0]));
790 i++)
791 if (tilepro_elf_howto_table[i].name != NULL
792 && strcasecmp (tilepro_elf_howto_table[i].name, r_name) == 0)
793 return &tilepro_elf_howto_table[i];
794
795 return NULL;
796 }
797
798 /* Set the howto pointer for an TILEPro ELF reloc. */
799
800 static void
801 tilepro_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
802 arelent * cache_ptr,
803 Elf_Internal_Rela * dst)
804 {
805 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
806
807 if (r_type <= (unsigned int) R_TILEPRO_IMM16_X1_TLS_LE_HA)
808 cache_ptr->howto = &tilepro_elf_howto_table [r_type];
809 else if (r_type - R_TILEPRO_GNU_VTINHERIT
810 <= (unsigned int) R_TILEPRO_GNU_VTENTRY)
811 cache_ptr->howto
812 = &tilepro_elf_howto_table2 [r_type - R_TILEPRO_GNU_VTINHERIT];
813 else
814 abort ();
815 }
816
817 typedef tilepro_bundle_bits (*tilepro_create_func)(int);
818
819 static const tilepro_create_func reloc_to_create_func[] =
820 {
821 /* The first fourteen relocation types don't correspond to operands */
822 NULL,
823 NULL,
824 NULL,
825 NULL,
826 NULL,
827 NULL,
828 NULL,
829 NULL,
830 NULL,
831 NULL,
832 NULL,
833 NULL,
834 NULL,
835 NULL,
836
837 /* The remaining relocations are used for immediate operands */
838 create_BrOff_X1,
839 create_JOffLong_X1,
840 create_JOffLong_X1,
841 create_Imm8_X0,
842 create_Imm8_Y0,
843 create_Imm8_X1,
844 create_Imm8_Y1,
845 create_MT_Imm15_X1,
846 create_MF_Imm15_X1,
847 create_Imm16_X0,
848 create_Imm16_X1,
849 create_Imm16_X0,
850 create_Imm16_X1,
851 create_Imm16_X0,
852 create_Imm16_X1,
853 create_Imm16_X0,
854 create_Imm16_X1,
855 create_Imm16_X0,
856 create_Imm16_X1,
857 create_Imm16_X0,
858 create_Imm16_X1,
859 create_Imm16_X0,
860 create_Imm16_X1,
861 create_Imm16_X0,
862 create_Imm16_X1,
863 create_Imm16_X0,
864 create_Imm16_X1,
865 create_Imm16_X0,
866 create_Imm16_X1,
867 create_Imm16_X0,
868 create_Imm16_X1,
869 create_Imm16_X0,
870 create_Imm16_X1,
871 create_MMStart_X0,
872 create_MMEnd_X0,
873 create_MMStart_X1,
874 create_MMEnd_X1,
875 create_ShAmt_X0,
876 create_ShAmt_X1,
877 create_ShAmt_Y0,
878 create_ShAmt_Y1,
879
880 create_Dest_Imm8_X1,
881 NULL,
882 NULL,
883 NULL,
884 NULL,
885 NULL,
886 NULL,
887 NULL,
888 NULL,
889 NULL,
890 NULL,
891
892 create_Imm16_X0,
893 create_Imm16_X1,
894 create_Imm16_X0,
895 create_Imm16_X1,
896 create_Imm16_X0,
897 create_Imm16_X1,
898 create_Imm16_X0,
899 create_Imm16_X1,
900 create_Imm16_X0,
901 create_Imm16_X1,
902 create_Imm16_X0,
903 create_Imm16_X1,
904 create_Imm16_X0,
905 create_Imm16_X1,
906 create_Imm16_X0,
907 create_Imm16_X1,
908
909 NULL,
910 NULL,
911 NULL,
912
913 create_Imm16_X0,
914 create_Imm16_X1,
915 create_Imm16_X0,
916 create_Imm16_X1,
917 create_Imm16_X0,
918 create_Imm16_X1,
919 create_Imm16_X0,
920 create_Imm16_X1,
921 };
922
923 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
924
925 /* Support for core dump NOTE sections. */
926
927 static bfd_boolean
928 tilepro_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
929 {
930 int offset;
931 size_t size;
932
933 if (note->descsz != TILEPRO_PRSTATUS_SIZEOF)
934 return FALSE;
935
936 /* pr_cursig */
937 elf_tdata (abfd)->core_signal =
938 bfd_get_16 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_CURSIG);
939
940 /* pr_pid */
941 elf_tdata (abfd)->core_pid =
942 bfd_get_32 (abfd, note->descdata + TILEPRO_PRSTATUS_OFFSET_PR_PID);
943
944 /* pr_reg */
945 offset = TILEPRO_PRSTATUS_OFFSET_PR_REG;
946 size = TILEPRO_GREGSET_T_SIZE;
947
948 /* Make a ".reg/999" section. */
949 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
950 size, note->descpos + offset);
951 }
952
953 static bfd_boolean
954 tilepro_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
955 {
956 if (note->descsz != TILEPRO_PRPSINFO_SIZEOF)
957 return FALSE;
958
959 elf_tdata (abfd)->core_program
960 = _bfd_elfcore_strndup (abfd,
961 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_FNAME,
962 16);
963 elf_tdata (abfd)->core_command
964 = _bfd_elfcore_strndup (abfd,
965 note->descdata + TILEPRO_PRPSINFO_OFFSET_PR_PSARGS,
966 ELF_PR_PSARGS_SIZE);
967
968
969 /* Note that for some reason, a spurious space is tacked
970 onto the end of the args in some (at least one anyway)
971 implementations, so strip it off if it exists. */
972 {
973 char *command = elf_tdata (abfd)->core_command;
974 int n = strlen (command);
975
976 if (0 < n && command[n - 1] == ' ')
977 command[n - 1] = '\0';
978 }
979
980 return TRUE;
981 }
982
983
984 static void
985 tilepro_elf_append_rela_32 (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
986 {
987 Elf32_External_Rela *loc32;
988
989 loc32 = (Elf32_External_Rela *) s->contents;
990 loc32 += s->reloc_count++;
991 bfd_elf32_swap_reloca_out (abfd, rel, (bfd_byte *) loc32);
992 }
993
994 /* PLT/GOT stuff */
995
996 /* The procedure linkage table starts with the following header:
997
998 {
999 rli r29, r29, 16
1000 lwadd r28, r27, 4
1001 }
1002 lw r27, r27
1003 {
1004 info 10 ## SP not offset, return PC in LR
1005 jr r27
1006 }
1007
1008 Subsequent entries are the following, jumping to the header at the end:
1009
1010 lnk r28
1011 1:
1012 {
1013 auli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1014 auli r27, r28, <_GLOBAL_OFFSET_TABLE_ - 1b>
1015 }
1016 {
1017 addli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET>
1018 addli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b>
1019 }
1020 {
1021 auli r29, zero, MY_PLT_INDEX
1022 lw r28, r28
1023 }
1024 {
1025 info 10 ## SP not offset, return PC in LR
1026 jr r28
1027 }
1028
1029 We initially store MY_PLT_INDEX in the high bits so that we can use the all
1030 16 bits as an unsigned offset; if we use the low bits we would get an
1031 unwanted sign extension. The PLT header then rotates the index to get the
1032 right value, before calling the resolution routine. This computation can
1033 fit in unused bundle slots so it's free.
1034
1035 This code sequence lets the code at at the start of the PLT determine
1036 which PLT entry was executed by examining 'r29'.
1037
1038 Note that MY_PLT_INDEX skips over the header entries, so the first
1039 actual jump table entry has index zero.
1040 */
1041
1042 #define PLT_HEADER_SIZE_IN_BUNDLES 3
1043 #define PLT_ENTRY_SIZE_IN_BUNDLES 5
1044
1045 #define PLT_HEADER_SIZE \
1046 (PLT_HEADER_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1047 #define PLT_ENTRY_SIZE \
1048 (PLT_ENTRY_SIZE_IN_BUNDLES * TILEPRO_BUNDLE_SIZE_IN_BYTES)
1049
1050 /* The size in bytes of an entry in the global offset table. */
1051
1052 #define GOT_ENTRY_SIZE TILEPRO_BYTES_PER_WORD
1053
1054 #define GOTPLT_HEADER_SIZE (2 * GOT_ENTRY_SIZE)
1055
1056
1057 static const bfd_byte
1058 tilepro_plt0_entry[PLT_HEADER_SIZE] =
1059 {
1060 0x5d, 0x07, 0x03, 0x70,
1061 0x6e, 0x23, 0xd0, 0x30, /* { rli r29, r29, 16 ; lwadd r28, r27, 4 } */
1062 0x00, 0x50, 0xba, 0x6d,
1063 0x00, 0x08, 0x6d, 0xdc, /* { lw r27, r27 } */
1064 0xff, 0xaf, 0x10, 0x50,
1065 0x60, 0x03, 0x18, 0x08, /* { info 10 ; jr r27 } */
1066 };
1067
1068 static const bfd_byte
1069 tilepro_short_plt_entry[PLT_ENTRY_SIZE] =
1070 {
1071 0x00, 0x50, 0x16, 0x70,
1072 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1073 0x1c, 0x07, 0x00, 0xa0,
1074 0x8d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r28, 0 } */
1075 0xdd, 0x0f, 0x00, 0x30,
1076 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1077 0xff, 0xaf, 0x10, 0x50,
1078 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1079 0x00, 0x00, 0x00, 0x00,
1080 0x00, 0x00, 0x00, 0x00,
1081 };
1082
1083 static const bfd_byte
1084 tilepro_long_plt_entry[PLT_ENTRY_SIZE] =
1085 {
1086 0x00, 0x50, 0x16, 0x70,
1087 0x0e, 0x00, 0x1a, 0x08, /* { lnk r28 } */
1088 0x1c, 0x07, 0x00, 0xb0,
1089 0x8d, 0x03, 0x00, 0x20, /* { auli r28, r28, 0 ; auli r27, r28, 0 } */
1090 0x1c, 0x07, 0x00, 0xa0,
1091 0x6d, 0x03, 0x00, 0x18, /* { addli r28, r28, 0 ; addli r27, r27, 0 } */
1092 0xdd, 0x0f, 0x00, 0x30,
1093 0x8e, 0x73, 0x0b, 0x40, /* { auli r29, zero, 0 ; lw r28, r28 } */
1094 0xff, 0xaf, 0x10, 0x50,
1095 0x80, 0x03, 0x18, 0x08, /* { info 10 ; jr r28 } */
1096 };
1097
1098 static bfd_vma
1099 tilepro_ha16(bfd_vma vma)
1100 {
1101 return ((vma >> 16) + ((vma >> 15) & 1)) & 0xffff;
1102 }
1103
1104 static int
1105 tilepro_plt_entry_build (asection *splt, asection *sgotplt, bfd_vma offset,
1106 bfd_vma *r_offset)
1107 {
1108 int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE;
1109 int got_offset = plt_index * GOT_ENTRY_SIZE + GOTPLT_HEADER_SIZE;
1110 tilepro_bundle_bits *pc;
1111
1112 /* Compute the distance from the got entry to the lnk. */
1113 bfd_signed_vma dist_got_entry = sgotplt->output_section->vma
1114 + sgotplt->output_offset
1115 + got_offset
1116 - splt->output_section->vma
1117 - splt->output_offset
1118 - offset
1119 - TILEPRO_BUNDLE_SIZE_IN_BYTES;
1120
1121 /* Compute the distance to GOTPLT[0]. */
1122 bfd_signed_vma dist_got0 = dist_got_entry - got_offset;
1123
1124 /* Check whether we can use the short plt entry with 16-bit offset. */
1125 bfd_boolean short_plt_entry =
1126 (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000);
1127
1128 /* Copy the plt entry template. */
1129 memcpy (splt->contents + offset,
1130 short_plt_entry ? tilepro_short_plt_entry : tilepro_long_plt_entry,
1131 PLT_ENTRY_SIZE);
1132
1133 /* Write the immediate offsets. */
1134 pc = (tilepro_bundle_bits *)(splt->contents + offset);
1135 pc++;
1136
1137 if (!short_plt_entry)
1138 {
1139 /* { auli r28, r28, &GOTPLT[MY_GOT_INDEX] ; auli r27, r28, &GOTPLT[0] } */
1140 *pc++ |= create_Imm16_X0 (tilepro_ha16 (dist_got_entry))
1141 | create_Imm16_X1 (tilepro_ha16 (dist_got0));
1142 }
1143
1144 /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r28, &GOTPLT[0] } or
1145 { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; addli r27, r27, &GOTPLT[0] } */
1146 *pc++ |= create_Imm16_X0 (dist_got_entry)
1147 | create_Imm16_X1 (dist_got0);
1148
1149 /* { auli r29, zero, MY_PLT_INDEX ; lw r28, r28 } */
1150 *pc |= create_Imm16_X0 (plt_index);
1151
1152 /* Set the relocation offset. */
1153 *r_offset = got_offset;
1154
1155 return plt_index;
1156 }
1157
1158 #define TILEPRO_ELF_RELA_BYTES (sizeof(Elf32_External_Rela))
1159
1160
1161 /* Create an entry in an TILEPro ELF linker hash table. */
1162
1163 static struct bfd_hash_entry *
1164 link_hash_newfunc (struct bfd_hash_entry *entry,
1165 struct bfd_hash_table *table, const char *string)
1166 {
1167 /* Allocate the structure if it has not already been allocated by a
1168 subclass. */
1169 if (entry == NULL)
1170 {
1171 entry =
1172 bfd_hash_allocate (table,
1173 sizeof (struct tilepro_elf_link_hash_entry));
1174 if (entry == NULL)
1175 return entry;
1176 }
1177
1178 /* Call the allocation method of the superclass. */
1179 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1180 if (entry != NULL)
1181 {
1182 struct tilepro_elf_link_hash_entry *eh;
1183
1184 eh = (struct tilepro_elf_link_hash_entry *) entry;
1185 eh->dyn_relocs = NULL;
1186 eh->tls_type = GOT_UNKNOWN;
1187 }
1188
1189 return entry;
1190 }
1191
1192 /* Create a TILEPRO ELF linker hash table. */
1193
1194 static struct bfd_link_hash_table *
1195 tilepro_elf_link_hash_table_create (bfd *abfd)
1196 {
1197 struct tilepro_elf_link_hash_table *ret;
1198 bfd_size_type amt = sizeof (struct tilepro_elf_link_hash_table);
1199
1200 ret = (struct tilepro_elf_link_hash_table *) bfd_zmalloc (amt);
1201 if (ret == NULL)
1202 return NULL;
1203
1204 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1205 sizeof (struct tilepro_elf_link_hash_entry),
1206 TILEPRO_ELF_DATA))
1207 {
1208 free (ret);
1209 return NULL;
1210 }
1211
1212 return &ret->elf.root;
1213 }
1214
1215 /* Create the .got section. */
1216
1217 static bfd_boolean
1218 tilepro_elf_create_got_section (bfd *abfd, struct bfd_link_info *info)
1219 {
1220 flagword flags;
1221 asection *s, *s_got;
1222 struct elf_link_hash_entry *h;
1223 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1224 struct elf_link_hash_table *htab = elf_hash_table (info);
1225
1226 /* This function may be called more than once. */
1227 s = bfd_get_linker_section (abfd, ".got");
1228 if (s != NULL)
1229 return TRUE;
1230
1231 flags = bed->dynamic_sec_flags;
1232
1233 s = bfd_make_section_with_flags (abfd,
1234 (bed->rela_plts_and_copies_p
1235 ? ".rela.got" : ".rel.got"),
1236 (bed->dynamic_sec_flags
1237 | SEC_READONLY));
1238 if (s == NULL
1239 || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1240 return FALSE;
1241 htab->srelgot = s;
1242
1243 s = s_got = bfd_make_section_with_flags (abfd, ".got", flags);
1244 if (s == NULL
1245 || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align))
1246 return FALSE;
1247 htab->sgot = s;
1248
1249 /* The first bit of the global offset table is the header. */
1250 s->size += bed->got_header_size;
1251
1252 if (bed->want_got_plt)
1253 {
1254 s = bfd_make_section_with_flags (abfd, ".got.plt", flags);
1255 if (s == NULL
1256 || !bfd_set_section_alignment (abfd, s,
1257 bed->s->log_file_align))
1258 return FALSE;
1259 htab->sgotplt = s;
1260
1261 /* Reserve room for the header. */
1262 s->size += GOTPLT_HEADER_SIZE;
1263 }
1264
1265 if (bed->want_got_sym)
1266 {
1267 /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got
1268 section. We don't do this in the linker script because we don't want
1269 to define the symbol if we are not creating a global offset
1270 table. */
1271 h = _bfd_elf_define_linkage_sym (abfd, info, s_got,
1272 "_GLOBAL_OFFSET_TABLE_");
1273 elf_hash_table (info)->hgot = h;
1274 if (h == NULL)
1275 return FALSE;
1276 }
1277
1278 return TRUE;
1279 }
1280
1281 /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and
1282 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1283 hash table. */
1284
1285 static bfd_boolean
1286 tilepro_elf_create_dynamic_sections (bfd *dynobj,
1287 struct bfd_link_info *info)
1288 {
1289 struct tilepro_elf_link_hash_table *htab;
1290
1291 htab = tilepro_elf_hash_table (info);
1292 BFD_ASSERT (htab != NULL);
1293
1294 if (!tilepro_elf_create_got_section (dynobj, info))
1295 return FALSE;
1296
1297 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1298 return FALSE;
1299
1300 htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
1301 if (!info->shared)
1302 htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss");
1303
1304 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
1305 || (!info->shared && !htab->srelbss))
1306 abort ();
1307
1308 return TRUE;
1309 }
1310
1311 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1312
1313 static void
1314 tilepro_elf_copy_indirect_symbol (struct bfd_link_info *info,
1315 struct elf_link_hash_entry *dir,
1316 struct elf_link_hash_entry *ind)
1317 {
1318 struct tilepro_elf_link_hash_entry *edir, *eind;
1319
1320 edir = (struct tilepro_elf_link_hash_entry *) dir;
1321 eind = (struct tilepro_elf_link_hash_entry *) ind;
1322
1323 if (eind->dyn_relocs != NULL)
1324 {
1325 if (edir->dyn_relocs != NULL)
1326 {
1327 struct tilepro_elf_dyn_relocs **pp;
1328 struct tilepro_elf_dyn_relocs *p;
1329
1330 /* Add reloc counts against the indirect sym to the direct sym
1331 list. Merge any entries against the same section. */
1332 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1333 {
1334 struct tilepro_elf_dyn_relocs *q;
1335
1336 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1337 if (q->sec == p->sec)
1338 {
1339 q->pc_count += p->pc_count;
1340 q->count += p->count;
1341 *pp = p->next;
1342 break;
1343 }
1344 if (q == NULL)
1345 pp = &p->next;
1346 }
1347 *pp = edir->dyn_relocs;
1348 }
1349
1350 edir->dyn_relocs = eind->dyn_relocs;
1351 eind->dyn_relocs = NULL;
1352 }
1353
1354 if (ind->root.type == bfd_link_hash_indirect
1355 && dir->got.refcount <= 0)
1356 {
1357 edir->tls_type = eind->tls_type;
1358 eind->tls_type = GOT_UNKNOWN;
1359 }
1360 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1361 }
1362
1363 static int
1364 tilepro_tls_translate_to_le (int r_type)
1365 {
1366 switch (r_type)
1367 {
1368 case R_TILEPRO_IMM16_X0_TLS_GD:
1369 case R_TILEPRO_IMM16_X0_TLS_IE:
1370 return R_TILEPRO_IMM16_X0_TLS_LE;
1371
1372 case R_TILEPRO_IMM16_X1_TLS_GD:
1373 case R_TILEPRO_IMM16_X1_TLS_IE:
1374 return R_TILEPRO_IMM16_X1_TLS_LE;
1375
1376 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1377 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1378 return R_TILEPRO_IMM16_X0_TLS_LE_LO;
1379
1380 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1381 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1382 return R_TILEPRO_IMM16_X1_TLS_LE_LO;
1383
1384 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1385 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1386 return R_TILEPRO_IMM16_X0_TLS_LE_HI;
1387
1388 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1389 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1390 return R_TILEPRO_IMM16_X1_TLS_LE_HI;
1391
1392 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1393 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1394 return R_TILEPRO_IMM16_X0_TLS_LE_HA;
1395
1396 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1397 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1398 return R_TILEPRO_IMM16_X1_TLS_LE_HA;
1399 }
1400 return r_type;
1401 }
1402
1403 static int
1404 tilepro_tls_translate_to_ie (int r_type)
1405 {
1406 switch (r_type)
1407 {
1408 case R_TILEPRO_IMM16_X0_TLS_GD:
1409 case R_TILEPRO_IMM16_X0_TLS_IE:
1410 return R_TILEPRO_IMM16_X0_TLS_IE;
1411
1412 case R_TILEPRO_IMM16_X1_TLS_GD:
1413 case R_TILEPRO_IMM16_X1_TLS_IE:
1414 return R_TILEPRO_IMM16_X1_TLS_IE;
1415
1416 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1417 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1418 return R_TILEPRO_IMM16_X0_TLS_IE_LO;
1419
1420 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1421 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1422 return R_TILEPRO_IMM16_X1_TLS_IE_LO;
1423
1424 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1425 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1426 return R_TILEPRO_IMM16_X0_TLS_IE_HI;
1427
1428 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1429 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1430 return R_TILEPRO_IMM16_X1_TLS_IE_HI;
1431
1432 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1433 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1434 return R_TILEPRO_IMM16_X0_TLS_IE_HA;
1435
1436 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1437 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1438 return R_TILEPRO_IMM16_X1_TLS_IE_HA;
1439 }
1440 return r_type;
1441 }
1442
1443 static int
1444 tilepro_elf_tls_transition (struct bfd_link_info *info, int r_type,
1445 int is_local)
1446 {
1447 if (info->shared)
1448 return r_type;
1449
1450 if (is_local)
1451 return tilepro_tls_translate_to_le (r_type);
1452 else
1453 return tilepro_tls_translate_to_ie (r_type);
1454 }
1455
1456 /* Look through the relocs for a section during the first phase, and
1457 allocate space in the global offset table or procedure linkage
1458 table. */
1459
1460 static bfd_boolean
1461 tilepro_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1462 asection *sec, const Elf_Internal_Rela *relocs)
1463 {
1464 struct tilepro_elf_link_hash_table *htab;
1465 Elf_Internal_Shdr *symtab_hdr;
1466 struct elf_link_hash_entry **sym_hashes;
1467 const Elf_Internal_Rela *rel;
1468 const Elf_Internal_Rela *rel_end;
1469 asection *sreloc;
1470 int num_relocs;
1471
1472 if (info->relocatable)
1473 return TRUE;
1474
1475 htab = tilepro_elf_hash_table (info);
1476 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1477 sym_hashes = elf_sym_hashes (abfd);
1478
1479 sreloc = NULL;
1480
1481 num_relocs = sec->reloc_count;
1482
1483 BFD_ASSERT (is_tilepro_elf (abfd) || num_relocs == 0);
1484
1485 if (htab->elf.dynobj == NULL)
1486 htab->elf.dynobj = abfd;
1487
1488 rel_end = relocs + num_relocs;
1489 for (rel = relocs; rel < rel_end; rel++)
1490 {
1491 unsigned int r_type;
1492 unsigned long r_symndx;
1493 struct elf_link_hash_entry *h;
1494 int tls_type;
1495
1496 r_symndx = ELF32_R_SYM (rel->r_info);
1497 r_type = ELF32_R_TYPE (rel->r_info);
1498
1499 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1500 {
1501 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1502 abfd, r_symndx);
1503 return FALSE;
1504 }
1505
1506 if (r_symndx < symtab_hdr->sh_info)
1507 h = NULL;
1508 else
1509 {
1510 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1511 while (h->root.type == bfd_link_hash_indirect
1512 || h->root.type == bfd_link_hash_warning)
1513 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1514 }
1515
1516 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
1517 switch (r_type)
1518 {
1519 case R_TILEPRO_IMM16_X0_TLS_LE:
1520 case R_TILEPRO_IMM16_X1_TLS_LE:
1521 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
1522 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
1523 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
1524 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
1525 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
1526 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
1527 if (info->shared)
1528 goto r_tilepro_plt32;
1529 break;
1530
1531 case R_TILEPRO_IMM16_X0_TLS_GD:
1532 case R_TILEPRO_IMM16_X1_TLS_GD:
1533 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1534 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1535 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1536 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1537 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1538 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1539 BFD_ASSERT (info->shared);
1540 tls_type = GOT_TLS_GD;
1541 goto have_got_reference;
1542
1543 case R_TILEPRO_IMM16_X0_TLS_IE:
1544 case R_TILEPRO_IMM16_X1_TLS_IE:
1545 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1546 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1547 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1548 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1549 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1550 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1551 tls_type = GOT_TLS_IE;
1552 if (info->shared)
1553 info->flags |= DF_STATIC_TLS;
1554 goto have_got_reference;
1555
1556 case R_TILEPRO_IMM16_X0_GOT:
1557 case R_TILEPRO_IMM16_X1_GOT:
1558 case R_TILEPRO_IMM16_X0_GOT_LO:
1559 case R_TILEPRO_IMM16_X1_GOT_LO:
1560 case R_TILEPRO_IMM16_X0_GOT_HI:
1561 case R_TILEPRO_IMM16_X1_GOT_HI:
1562 case R_TILEPRO_IMM16_X0_GOT_HA:
1563 case R_TILEPRO_IMM16_X1_GOT_HA:
1564 tls_type = GOT_NORMAL;
1565 /* Fall Through */
1566
1567 have_got_reference:
1568 /* This symbol requires a global offset table entry. */
1569 {
1570 int old_tls_type;
1571
1572 if (h != NULL)
1573 {
1574 h->got.refcount += 1;
1575 old_tls_type = tilepro_elf_hash_entry(h)->tls_type;
1576 }
1577 else
1578 {
1579 bfd_signed_vma *local_got_refcounts;
1580
1581 /* This is a global offset table entry for a local symbol. */
1582 local_got_refcounts = elf_local_got_refcounts (abfd);
1583 if (local_got_refcounts == NULL)
1584 {
1585 bfd_size_type size;
1586
1587 size = symtab_hdr->sh_info;
1588 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1589 local_got_refcounts = ((bfd_signed_vma *)
1590 bfd_zalloc (abfd, size));
1591 if (local_got_refcounts == NULL)
1592 return FALSE;
1593 elf_local_got_refcounts (abfd) = local_got_refcounts;
1594 _bfd_tilepro_elf_local_got_tls_type (abfd)
1595 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1596 }
1597 local_got_refcounts[r_symndx] += 1;
1598 old_tls_type =
1599 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx];
1600 }
1601
1602 /* If a TLS symbol is accessed using IE at least once,
1603 there is no point to use dynamic model for it. */
1604 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1605 && (old_tls_type != GOT_TLS_GD
1606 || tls_type != GOT_TLS_IE))
1607 {
1608 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1609 tls_type = old_tls_type;
1610 else
1611 {
1612 (*_bfd_error_handler)
1613 (_("%B: `%s' accessed both as normal and thread local symbol"),
1614 abfd, h ? h->root.root.string : "<local>");
1615 return FALSE;
1616 }
1617 }
1618
1619 if (old_tls_type != tls_type)
1620 {
1621 if (h != NULL)
1622 tilepro_elf_hash_entry (h)->tls_type = tls_type;
1623 else
1624 _bfd_tilepro_elf_local_got_tls_type (abfd) [r_symndx] =
1625 tls_type;
1626 }
1627 }
1628
1629 if (htab->elf.sgot == NULL)
1630 {
1631 if (!tilepro_elf_create_got_section (htab->elf.dynobj, info))
1632 return FALSE;
1633 }
1634 break;
1635
1636 case R_TILEPRO_TLS_GD_CALL:
1637 if (info->shared)
1638 {
1639 /* These are basically R_TILEPRO_JOFFLONG_X1_PLT relocs
1640 against __tls_get_addr. */
1641 struct bfd_link_hash_entry *bh = NULL;
1642 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1643 "__tls_get_addr", 0,
1644 bfd_und_section_ptr, 0,
1645 NULL, FALSE, FALSE,
1646 &bh))
1647 return FALSE;
1648 h = (struct elf_link_hash_entry *) bh;
1649 }
1650 else
1651 break;
1652 /* Fall through */
1653
1654 case R_TILEPRO_JOFFLONG_X1_PLT:
1655 /* This symbol requires a procedure linkage table entry. We
1656 actually build the entry in adjust_dynamic_symbol,
1657 because this might be a case of linking PIC code without
1658 linking in any dynamic objects, in which case we don't
1659 need to generate a procedure linkage table after all. */
1660
1661 if (h != NULL)
1662 {
1663 h->needs_plt = 1;
1664 h->plt.refcount += 1;
1665 }
1666 break;
1667
1668 case R_TILEPRO_32_PCREL:
1669 case R_TILEPRO_16_PCREL:
1670 case R_TILEPRO_8_PCREL:
1671 case R_TILEPRO_IMM16_X0_PCREL:
1672 case R_TILEPRO_IMM16_X1_PCREL:
1673 case R_TILEPRO_IMM16_X0_LO_PCREL:
1674 case R_TILEPRO_IMM16_X1_LO_PCREL:
1675 case R_TILEPRO_IMM16_X0_HI_PCREL:
1676 case R_TILEPRO_IMM16_X1_HI_PCREL:
1677 case R_TILEPRO_IMM16_X0_HA_PCREL:
1678 case R_TILEPRO_IMM16_X1_HA_PCREL:
1679 if (h != NULL)
1680 h->non_got_ref = 1;
1681
1682 if (h != NULL
1683 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1684 break;
1685 /* Fall through. */
1686
1687 case R_TILEPRO_32:
1688 case R_TILEPRO_16:
1689 case R_TILEPRO_8:
1690 case R_TILEPRO_LO16:
1691 case R_TILEPRO_HI16:
1692 case R_TILEPRO_HA16:
1693 case R_TILEPRO_COPY:
1694 case R_TILEPRO_GLOB_DAT:
1695 case R_TILEPRO_JMP_SLOT:
1696 case R_TILEPRO_RELATIVE:
1697 case R_TILEPRO_BROFF_X1:
1698 case R_TILEPRO_JOFFLONG_X1:
1699 case R_TILEPRO_IMM8_X0:
1700 case R_TILEPRO_IMM8_Y0:
1701 case R_TILEPRO_IMM8_X1:
1702 case R_TILEPRO_IMM8_Y1:
1703 case R_TILEPRO_DEST_IMM8_X1:
1704 case R_TILEPRO_MT_IMM15_X1:
1705 case R_TILEPRO_MF_IMM15_X1:
1706 case R_TILEPRO_IMM16_X0:
1707 case R_TILEPRO_IMM16_X1:
1708 case R_TILEPRO_IMM16_X0_LO:
1709 case R_TILEPRO_IMM16_X1_LO:
1710 case R_TILEPRO_IMM16_X0_HI:
1711 case R_TILEPRO_IMM16_X1_HI:
1712 case R_TILEPRO_IMM16_X0_HA:
1713 case R_TILEPRO_IMM16_X1_HA:
1714 case R_TILEPRO_MMSTART_X0:
1715 case R_TILEPRO_MMEND_X0:
1716 case R_TILEPRO_MMSTART_X1:
1717 case R_TILEPRO_MMEND_X1:
1718 case R_TILEPRO_SHAMT_X0:
1719 case R_TILEPRO_SHAMT_X1:
1720 case R_TILEPRO_SHAMT_Y0:
1721 case R_TILEPRO_SHAMT_Y1:
1722 if (h != NULL)
1723 h->non_got_ref = 1;
1724
1725 r_tilepro_plt32:
1726 if (h != NULL && !info->shared)
1727 {
1728 /* We may need a .plt entry if the function this reloc
1729 refers to is in a shared lib. */
1730 h->plt.refcount += 1;
1731 }
1732
1733 /* If we are creating a shared library, and this is a reloc
1734 against a global symbol, or a non PC relative reloc
1735 against a local symbol, then we need to copy the reloc
1736 into the shared library. However, if we are linking with
1737 -Bsymbolic, we do not need to copy a reloc against a
1738 global symbol which is defined in an object we are
1739 including in the link (i.e., DEF_REGULAR is set). At
1740 this point we have not seen all the input files, so it is
1741 possible that DEF_REGULAR is not set now but will be set
1742 later (it is never cleared). In case of a weak definition,
1743 DEF_REGULAR may be cleared later by a strong definition in
1744 a shared library. We account for that possibility below by
1745 storing information in the relocs_copied field of the hash
1746 table entry. A similar situation occurs when creating
1747 shared libraries and symbol visibility changes render the
1748 symbol local.
1749
1750 If on the other hand, we are creating an executable, we
1751 may need to keep relocations for symbols satisfied by a
1752 dynamic library if we manage to avoid copy relocs for the
1753 symbol. */
1754 if ((info->shared
1755 && (sec->flags & SEC_ALLOC) != 0
1756 && (! tilepro_elf_howto_table[r_type].pc_relative
1757 || (h != NULL
1758 && (! info->symbolic
1759 || h->root.type == bfd_link_hash_defweak
1760 || !h->def_regular))))
1761 || (!info->shared
1762 && (sec->flags & SEC_ALLOC) != 0
1763 && h != NULL
1764 && (h->root.type == bfd_link_hash_defweak
1765 || !h->def_regular)))
1766 {
1767 struct tilepro_elf_dyn_relocs *p;
1768 struct tilepro_elf_dyn_relocs **head;
1769
1770 /* When creating a shared object, we must copy these
1771 relocs into the output file. We create a reloc
1772 section in dynobj and make room for the reloc. */
1773 if (sreloc == NULL)
1774 {
1775 sreloc = _bfd_elf_make_dynamic_reloc_section
1776 (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE);
1777
1778 if (sreloc == NULL)
1779 return FALSE;
1780 }
1781
1782 /* If this is a global symbol, we count the number of
1783 relocations we need for this symbol. */
1784 if (h != NULL)
1785 head =
1786 &((struct tilepro_elf_link_hash_entry *) h)->dyn_relocs;
1787 else
1788 {
1789 /* Track dynamic relocs needed for local syms too.
1790 We really need local syms available to do this
1791 easily. Oh well. */
1792
1793 asection *s;
1794 void *vpp;
1795 Elf_Internal_Sym *isym;
1796
1797 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1798 abfd, r_symndx);
1799 if (isym == NULL)
1800 return FALSE;
1801
1802 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1803 if (s == NULL)
1804 s = sec;
1805
1806 vpp = &elf_section_data (s)->local_dynrel;
1807 head = (struct tilepro_elf_dyn_relocs **) vpp;
1808 }
1809
1810 p = *head;
1811 if (p == NULL || p->sec != sec)
1812 {
1813 bfd_size_type amt = sizeof *p;
1814 p = ((struct tilepro_elf_dyn_relocs *)
1815 bfd_alloc (htab->elf.dynobj, amt));
1816 if (p == NULL)
1817 return FALSE;
1818 p->next = *head;
1819 *head = p;
1820 p->sec = sec;
1821 p->count = 0;
1822 p->pc_count = 0;
1823 }
1824
1825 p->count += 1;
1826 if (tilepro_elf_howto_table[r_type].pc_relative)
1827 p->pc_count += 1;
1828 }
1829
1830 break;
1831
1832 case R_TILEPRO_GNU_VTINHERIT:
1833 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1834 return FALSE;
1835 break;
1836
1837 case R_TILEPRO_GNU_VTENTRY:
1838 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1839 return FALSE;
1840 break;
1841
1842 default:
1843 break;
1844 }
1845 }
1846
1847 return TRUE;
1848 }
1849
1850 \f
1851 static asection *
1852 tilepro_elf_gc_mark_hook (asection *sec,
1853 struct bfd_link_info *info,
1854 Elf_Internal_Rela *rel,
1855 struct elf_link_hash_entry *h,
1856 Elf_Internal_Sym *sym)
1857 {
1858 if (h != NULL)
1859 {
1860 switch (ELF32_R_TYPE (rel->r_info))
1861 {
1862 case R_TILEPRO_GNU_VTINHERIT:
1863 case R_TILEPRO_GNU_VTENTRY:
1864 break;
1865 }
1866 }
1867
1868 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1869 }
1870
1871 /* Update the got entry reference counts for the section being removed. */
1872 static bfd_boolean
1873 tilepro_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1874 asection *sec, const Elf_Internal_Rela *relocs)
1875 {
1876 struct tilepro_elf_link_hash_table *htab;
1877 Elf_Internal_Shdr *symtab_hdr;
1878 struct elf_link_hash_entry **sym_hashes;
1879 bfd_signed_vma *local_got_refcounts;
1880 const Elf_Internal_Rela *rel, *relend;
1881
1882 if (info->relocatable)
1883 return TRUE;
1884
1885 BFD_ASSERT (is_tilepro_elf (abfd) || sec->reloc_count == 0);
1886
1887 elf_section_data (sec)->local_dynrel = NULL;
1888
1889 htab = tilepro_elf_hash_table (info);
1890 BFD_ASSERT (htab != NULL);
1891 symtab_hdr = &elf_symtab_hdr (abfd);
1892 sym_hashes = elf_sym_hashes (abfd);
1893 local_got_refcounts = elf_local_got_refcounts (abfd);
1894
1895 relend = relocs + sec->reloc_count;
1896 for (rel = relocs; rel < relend; rel++)
1897 {
1898 unsigned long r_symndx;
1899 unsigned int r_type;
1900 struct elf_link_hash_entry *h = NULL;
1901
1902 r_symndx = ELF32_R_SYM (rel->r_info);
1903 if (r_symndx >= symtab_hdr->sh_info)
1904 {
1905 struct tilepro_elf_link_hash_entry *eh;
1906 struct tilepro_elf_dyn_relocs **pp;
1907 struct tilepro_elf_dyn_relocs *p;
1908
1909 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1910 while (h->root.type == bfd_link_hash_indirect
1911 || h->root.type == bfd_link_hash_warning)
1912 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1913 eh = (struct tilepro_elf_link_hash_entry *) h;
1914 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1915 if (p->sec == sec)
1916 {
1917 /* Everything must go for SEC. */
1918 *pp = p->next;
1919 break;
1920 }
1921 }
1922
1923 r_type = ELF32_R_TYPE (rel->r_info);
1924 r_type = tilepro_elf_tls_transition (info, r_type, h != NULL);
1925 switch (r_type)
1926 {
1927 case R_TILEPRO_IMM16_X0_GOT:
1928 case R_TILEPRO_IMM16_X1_GOT:
1929 case R_TILEPRO_IMM16_X0_GOT_LO:
1930 case R_TILEPRO_IMM16_X1_GOT_LO:
1931 case R_TILEPRO_IMM16_X0_GOT_HI:
1932 case R_TILEPRO_IMM16_X1_GOT_HI:
1933 case R_TILEPRO_IMM16_X0_GOT_HA:
1934 case R_TILEPRO_IMM16_X1_GOT_HA:
1935 case R_TILEPRO_IMM16_X0_TLS_GD:
1936 case R_TILEPRO_IMM16_X1_TLS_GD:
1937 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
1938 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
1939 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
1940 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
1941 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
1942 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
1943 case R_TILEPRO_IMM16_X0_TLS_IE:
1944 case R_TILEPRO_IMM16_X1_TLS_IE:
1945 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
1946 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
1947 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
1948 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
1949 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
1950 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
1951 if (h != NULL)
1952 {
1953 if (h->got.refcount > 0)
1954 h->got.refcount--;
1955 }
1956 else
1957 {
1958 if (local_got_refcounts &&
1959 local_got_refcounts[r_symndx] > 0)
1960 local_got_refcounts[r_symndx]--;
1961 }
1962 break;
1963
1964 case R_TILEPRO_32_PCREL:
1965 case R_TILEPRO_16_PCREL:
1966 case R_TILEPRO_8_PCREL:
1967 case R_TILEPRO_IMM16_X0_PCREL:
1968 case R_TILEPRO_IMM16_X1_PCREL:
1969 case R_TILEPRO_IMM16_X0_LO_PCREL:
1970 case R_TILEPRO_IMM16_X1_LO_PCREL:
1971 case R_TILEPRO_IMM16_X0_HI_PCREL:
1972 case R_TILEPRO_IMM16_X1_HI_PCREL:
1973 case R_TILEPRO_IMM16_X0_HA_PCREL:
1974 case R_TILEPRO_IMM16_X1_HA_PCREL:
1975 if (h != NULL
1976 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1977 break;
1978 /* Fall through. */
1979
1980 case R_TILEPRO_32:
1981 case R_TILEPRO_16:
1982 case R_TILEPRO_8:
1983 case R_TILEPRO_LO16:
1984 case R_TILEPRO_HI16:
1985 case R_TILEPRO_HA16:
1986 case R_TILEPRO_COPY:
1987 case R_TILEPRO_GLOB_DAT:
1988 case R_TILEPRO_JMP_SLOT:
1989 case R_TILEPRO_RELATIVE:
1990 case R_TILEPRO_BROFF_X1:
1991 case R_TILEPRO_JOFFLONG_X1:
1992 case R_TILEPRO_IMM8_X0:
1993 case R_TILEPRO_IMM8_Y0:
1994 case R_TILEPRO_IMM8_X1:
1995 case R_TILEPRO_IMM8_Y1:
1996 case R_TILEPRO_DEST_IMM8_X1:
1997 case R_TILEPRO_MT_IMM15_X1:
1998 case R_TILEPRO_MF_IMM15_X1:
1999 case R_TILEPRO_IMM16_X0:
2000 case R_TILEPRO_IMM16_X1:
2001 case R_TILEPRO_IMM16_X0_LO:
2002 case R_TILEPRO_IMM16_X1_LO:
2003 case R_TILEPRO_IMM16_X0_HI:
2004 case R_TILEPRO_IMM16_X1_HI:
2005 case R_TILEPRO_IMM16_X0_HA:
2006 case R_TILEPRO_IMM16_X1_HA:
2007 case R_TILEPRO_MMSTART_X0:
2008 case R_TILEPRO_MMEND_X0:
2009 case R_TILEPRO_MMSTART_X1:
2010 case R_TILEPRO_MMEND_X1:
2011 case R_TILEPRO_SHAMT_X0:
2012 case R_TILEPRO_SHAMT_X1:
2013 case R_TILEPRO_SHAMT_Y0:
2014 case R_TILEPRO_SHAMT_Y1:
2015 if (info->shared)
2016 break;
2017 /* Fall through. */
2018
2019 case R_TILEPRO_JOFFLONG_X1_PLT:
2020 if (h != NULL)
2021 {
2022 if (h->plt.refcount > 0)
2023 h->plt.refcount--;
2024 }
2025 break;
2026
2027 default:
2028 break;
2029 }
2030 }
2031
2032 return TRUE;
2033 }
2034
2035 /* Adjust a symbol defined by a dynamic object and referenced by a
2036 regular object. The current definition is in some section of the
2037 dynamic object, but we're not including those sections. We have to
2038 change the definition to something the rest of the link can
2039 understand. */
2040
2041 static bfd_boolean
2042 tilepro_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2043 struct elf_link_hash_entry *h)
2044 {
2045 struct tilepro_elf_link_hash_table *htab;
2046 struct tilepro_elf_link_hash_entry * eh;
2047 struct tilepro_elf_dyn_relocs *p;
2048 asection *s;
2049
2050 htab = tilepro_elf_hash_table (info);
2051 BFD_ASSERT (htab != NULL);
2052
2053 /* Make sure we know what is going on here. */
2054 BFD_ASSERT (htab->elf.dynobj != NULL
2055 && (h->needs_plt
2056 || h->u.weakdef != NULL
2057 || (h->def_dynamic
2058 && h->ref_regular
2059 && !h->def_regular)));
2060
2061 /* If this is a function, put it in the procedure linkage table. We
2062 will fill in the contents of the procedure linkage table later
2063 (although we could actually do it here). */
2064 if (h->type == STT_FUNC || h->needs_plt)
2065 {
2066 if (h->plt.refcount <= 0
2067 || SYMBOL_CALLS_LOCAL (info, h)
2068 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2069 && h->root.type == bfd_link_hash_undefweak))
2070 {
2071 /* This case can occur if we saw a R_TILEPRO_JOFFLONG_X1_PLT
2072 reloc in an input file, but the symbol was never referred
2073 to by a dynamic object, or if all references were garbage
2074 collected. In such a case, we don't actually need to build
2075 a procedure linkage table, and we can just do a
2076 R_TILEPRO_JOFFLONG_X1 relocation instead. */
2077 h->plt.offset = (bfd_vma) -1;
2078 h->needs_plt = 0;
2079 }
2080
2081 return TRUE;
2082 }
2083 else
2084 h->plt.offset = (bfd_vma) -1;
2085
2086 /* If this is a weak symbol, and there is a real definition, the
2087 processor independent code will have arranged for us to see the
2088 real definition first, and we can just use the same value. */
2089 if (h->u.weakdef != NULL)
2090 {
2091 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2092 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2093 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2094 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2095 return TRUE;
2096 }
2097
2098 /* This is a reference to a symbol defined by a dynamic object which
2099 is not a function. */
2100
2101 /* If we are creating a shared library, we must presume that the
2102 only references to the symbol are via the global offset table.
2103 For such cases we need not do anything here; the relocations will
2104 be handled correctly by relocate_section. */
2105 if (info->shared)
2106 return TRUE;
2107
2108 /* If there are no references to this symbol that do not use the
2109 GOT, we don't need to generate a copy reloc. */
2110 if (!h->non_got_ref)
2111 return TRUE;
2112
2113 /* If -z nocopyreloc was given, we won't generate them either. */
2114 if (info->nocopyreloc)
2115 {
2116 h->non_got_ref = 0;
2117 return TRUE;
2118 }
2119
2120 eh = (struct tilepro_elf_link_hash_entry *) h;
2121 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2122 {
2123 s = p->sec->output_section;
2124 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2125 break;
2126 }
2127
2128 /* If we didn't find any dynamic relocs in read-only sections, then
2129 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2130 if (p == NULL)
2131 {
2132 h->non_got_ref = 0;
2133 return TRUE;
2134 }
2135
2136 /* We must allocate the symbol in our .dynbss section, which will
2137 become part of the .bss section of the executable. There will be
2138 an entry for this symbol in the .dynsym section. The dynamic
2139 object will contain position independent code, so all references
2140 from the dynamic object to this symbol will go through the global
2141 offset table. The dynamic linker will use the .dynsym entry to
2142 determine the address it must put in the global offset table, so
2143 both the dynamic object and the regular object will refer to the
2144 same memory location for the variable. */
2145
2146 /* We must generate a R_TILEPRO_COPY reloc to tell the dynamic linker
2147 to copy the initial value out of the dynamic object and into the
2148 runtime process image. We need to remember the offset into the
2149 .rel.bss section we are going to use. */
2150 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2151 {
2152 htab->srelbss->size += TILEPRO_ELF_RELA_BYTES;
2153 h->needs_copy = 1;
2154 }
2155
2156 return _bfd_elf_adjust_dynamic_copy (h, htab->sdynbss);
2157 }
2158
2159 /* Allocate space in .plt, .got and associated reloc sections for
2160 dynamic relocs. */
2161
2162 static bfd_boolean
2163 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2164 {
2165 struct bfd_link_info *info;
2166 struct tilepro_elf_link_hash_table *htab;
2167 struct tilepro_elf_link_hash_entry *eh;
2168 struct tilepro_elf_dyn_relocs *p;
2169
2170 if (h->root.type == bfd_link_hash_indirect)
2171 return TRUE;
2172
2173 info = (struct bfd_link_info *) inf;
2174 htab = tilepro_elf_hash_table (info);
2175 BFD_ASSERT (htab != NULL);
2176
2177 if (htab->elf.dynamic_sections_created
2178 && h->plt.refcount > 0)
2179 {
2180 /* Make sure this symbol is output as a dynamic symbol.
2181 Undefined weak syms won't yet be marked as dynamic. */
2182 if (h->dynindx == -1
2183 && !h->forced_local)
2184 {
2185 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2186 return FALSE;
2187 }
2188
2189 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2190 {
2191 asection *s = htab->elf.splt;
2192
2193 /* Allocate room for the header. */
2194 if (s->size == 0)
2195 {
2196 s->size = PLT_HEADER_SIZE;
2197 }
2198
2199 h->plt.offset = s->size;
2200
2201 /* If this symbol is not defined in a regular file, and we are
2202 not generating a shared library, then set the symbol to this
2203 location in the .plt. This is required to make function
2204 pointers compare as equal between the normal executable and
2205 the shared library. */
2206 if (! info->shared
2207 && !h->def_regular)
2208 {
2209 h->root.u.def.section = s;
2210 h->root.u.def.value = h->plt.offset;
2211 }
2212
2213 /* Make room for this entry. */
2214 s->size += PLT_ENTRY_SIZE;
2215
2216 /* We also need to make an entry in the .got.plt section. */
2217 htab->elf.sgotplt->size += GOT_ENTRY_SIZE;
2218
2219 /* We also need to make an entry in the .rela.plt section. */
2220 htab->elf.srelplt->size += TILEPRO_ELF_RELA_BYTES;
2221 }
2222 else
2223 {
2224 h->plt.offset = (bfd_vma) -1;
2225 h->needs_plt = 0;
2226 }
2227 }
2228 else
2229 {
2230 h->plt.offset = (bfd_vma) -1;
2231 h->needs_plt = 0;
2232 }
2233
2234 /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE
2235 requiring no TLS entry. */
2236 if (h->got.refcount > 0
2237 && !info->shared
2238 && h->dynindx == -1
2239 && tilepro_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2240 h->got.offset = (bfd_vma) -1;
2241 else if (h->got.refcount > 0)
2242 {
2243 asection *s;
2244 bfd_boolean dyn;
2245 int tls_type = tilepro_elf_hash_entry(h)->tls_type;
2246
2247 /* Make sure this symbol is output as a dynamic symbol.
2248 Undefined weak syms won't yet be marked as dynamic. */
2249 if (h->dynindx == -1
2250 && !h->forced_local)
2251 {
2252 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2253 return FALSE;
2254 }
2255
2256 s = htab->elf.sgot;
2257 h->got.offset = s->size;
2258 s->size += TILEPRO_BYTES_PER_WORD;
2259 /* R_TILEPRO_IMM16_Xn_TLS_GD entries need 2 consecutive GOT slots. */
2260 if (tls_type == GOT_TLS_GD)
2261 s->size += TILEPRO_BYTES_PER_WORD;
2262 dyn = htab->elf.dynamic_sections_created;
2263 /* R_TILEPRO_IMM16_Xn_TLS_IE_xxx needs one dynamic relocation,
2264 R_TILEPRO_IMM16_Xn_TLS_GD_xxx needs two if local symbol and two if
2265 global. */
2266 if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE)
2267 htab->elf.srelgot->size += 2 * TILEPRO_ELF_RELA_BYTES;
2268 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2269 htab->elf.srelgot->size += TILEPRO_ELF_RELA_BYTES;
2270 }
2271 else
2272 h->got.offset = (bfd_vma) -1;
2273
2274 eh = (struct tilepro_elf_link_hash_entry *) h;
2275 if (eh->dyn_relocs == NULL)
2276 return TRUE;
2277
2278 /* In the shared -Bsymbolic case, discard space allocated for
2279 dynamic pc-relative relocs against symbols which turn out to be
2280 defined in regular objects. For the normal shared case, discard
2281 space for pc-relative relocs that have become local due to symbol
2282 visibility changes. */
2283
2284 if (info->shared)
2285 {
2286 if (SYMBOL_CALLS_LOCAL (info, h))
2287 {
2288 struct tilepro_elf_dyn_relocs **pp;
2289
2290 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2291 {
2292 p->count -= p->pc_count;
2293 p->pc_count = 0;
2294 if (p->count == 0)
2295 *pp = p->next;
2296 else
2297 pp = &p->next;
2298 }
2299 }
2300
2301 /* Also discard relocs on undefined weak syms with non-default
2302 visibility. */
2303 if (eh->dyn_relocs != NULL
2304 && h->root.type == bfd_link_hash_undefweak)
2305 {
2306 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2307 eh->dyn_relocs = NULL;
2308
2309 /* Make sure undefined weak symbols are output as a dynamic
2310 symbol in PIEs. */
2311 else if (h->dynindx == -1
2312 && !h->forced_local)
2313 {
2314 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2315 return FALSE;
2316 }
2317 }
2318 }
2319 else
2320 {
2321 /* For the non-shared case, discard space for relocs against
2322 symbols which turn out to need copy relocs or are not
2323 dynamic. */
2324
2325 if (!h->non_got_ref
2326 && ((h->def_dynamic
2327 && !h->def_regular)
2328 || (htab->elf.dynamic_sections_created
2329 && (h->root.type == bfd_link_hash_undefweak
2330 || h->root.type == bfd_link_hash_undefined))))
2331 {
2332 /* Make sure this symbol is output as a dynamic symbol.
2333 Undefined weak syms won't yet be marked as dynamic. */
2334 if (h->dynindx == -1
2335 && !h->forced_local)
2336 {
2337 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2338 return FALSE;
2339 }
2340
2341 /* If that succeeded, we know we'll be keeping all the
2342 relocs. */
2343 if (h->dynindx != -1)
2344 goto keep;
2345 }
2346
2347 eh->dyn_relocs = NULL;
2348
2349 keep: ;
2350 }
2351
2352 /* Finally, allocate space. */
2353 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2354 {
2355 asection *sreloc = elf_section_data (p->sec)->sreloc;
2356 sreloc->size += p->count * TILEPRO_ELF_RELA_BYTES;
2357 }
2358
2359 return TRUE;
2360 }
2361
2362 /* Find any dynamic relocs that apply to read-only sections. */
2363
2364 static bfd_boolean
2365 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2366 {
2367 struct tilepro_elf_link_hash_entry *eh;
2368 struct tilepro_elf_dyn_relocs *p;
2369
2370 eh = (struct tilepro_elf_link_hash_entry *) h;
2371 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2372 {
2373 asection *s = p->sec->output_section;
2374
2375 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2376 {
2377 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2378
2379 info->flags |= DF_TEXTREL;
2380
2381 /* Not an error, just cut short the traversal. */
2382 return FALSE;
2383 }
2384 }
2385 return TRUE;
2386 }
2387
2388 /* Return true if the dynamic symbol for a given section should be
2389 omitted when creating a shared library. */
2390
2391 static bfd_boolean
2392 tilepro_elf_omit_section_dynsym (bfd *output_bfd,
2393 struct bfd_link_info *info,
2394 asection *p)
2395 {
2396 /* We keep the .got section symbol so that explicit relocations
2397 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2398 can be turned into relocations against the .got symbol. */
2399 if (strcmp (p->name, ".got") == 0)
2400 return FALSE;
2401
2402 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2403 }
2404
2405 /* Set the sizes of the dynamic sections. */
2406
2407 #define ELF32_DYNAMIC_INTERPRETER "/lib/ld.so.1"
2408
2409 static bfd_boolean
2410 tilepro_elf_size_dynamic_sections (bfd *output_bfd,
2411 struct bfd_link_info *info)
2412 {
2413 (void)output_bfd;
2414
2415 struct tilepro_elf_link_hash_table *htab;
2416 bfd *dynobj;
2417 asection *s;
2418 bfd *ibfd;
2419
2420 htab = tilepro_elf_hash_table (info);
2421 BFD_ASSERT (htab != NULL);
2422 dynobj = htab->elf.dynobj;
2423 BFD_ASSERT (dynobj != NULL);
2424
2425 if (elf_hash_table (info)->dynamic_sections_created)
2426 {
2427 /* Set the contents of the .interp section to the interpreter. */
2428 if (info->executable)
2429 {
2430 s = bfd_get_linker_section (dynobj, ".interp");
2431 BFD_ASSERT (s != NULL);
2432 s->size = sizeof ELF32_DYNAMIC_INTERPRETER;
2433 s->contents = (unsigned char *) ELF32_DYNAMIC_INTERPRETER;
2434 }
2435 }
2436
2437 /* Set up .got offsets for local syms, and space for local dynamic
2438 relocs. */
2439 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2440 {
2441 bfd_signed_vma *local_got;
2442 bfd_signed_vma *end_local_got;
2443 char *local_tls_type;
2444 bfd_size_type locsymcount;
2445 Elf_Internal_Shdr *symtab_hdr;
2446 asection *srel;
2447
2448 if (! is_tilepro_elf (ibfd))
2449 continue;
2450
2451 for (s = ibfd->sections; s != NULL; s = s->next)
2452 {
2453 struct tilepro_elf_dyn_relocs *p;
2454
2455 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2456 {
2457 if (!bfd_is_abs_section (p->sec)
2458 && bfd_is_abs_section (p->sec->output_section))
2459 {
2460 /* Input section has been discarded, either because
2461 it is a copy of a linkonce section or due to
2462 linker script /DISCARD/, so we'll be discarding
2463 the relocs too. */
2464 }
2465 else if (p->count != 0)
2466 {
2467 srel = elf_section_data (p->sec)->sreloc;
2468 srel->size += p->count * TILEPRO_ELF_RELA_BYTES;
2469 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2470 info->flags |= DF_TEXTREL;
2471 }
2472 }
2473 }
2474
2475 local_got = elf_local_got_refcounts (ibfd);
2476 if (!local_got)
2477 continue;
2478
2479 symtab_hdr = &elf_symtab_hdr (ibfd);
2480 locsymcount = symtab_hdr->sh_info;
2481 end_local_got = local_got + locsymcount;
2482 local_tls_type = _bfd_tilepro_elf_local_got_tls_type (ibfd);
2483 s = htab->elf.sgot;
2484 srel = htab->elf.srelgot;
2485 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2486 {
2487 if (*local_got > 0)
2488 {
2489 *local_got = s->size;
2490 s->size += TILEPRO_BYTES_PER_WORD;
2491 if (*local_tls_type == GOT_TLS_GD)
2492 s->size += TILEPRO_BYTES_PER_WORD;
2493 if (info->shared
2494 || *local_tls_type == GOT_TLS_GD
2495 || *local_tls_type == GOT_TLS_IE)
2496 srel->size += TILEPRO_ELF_RELA_BYTES;
2497 }
2498 else
2499 *local_got = (bfd_vma) -1;
2500 }
2501 }
2502
2503 /* Allocate global sym .plt and .got entries, and space for global
2504 sym dynamic relocs. */
2505 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2506
2507 if (elf_hash_table (info)->dynamic_sections_created)
2508 {
2509 /* If the .got section is more than 0x8000 bytes, we add
2510 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16
2511 bit relocations have a greater chance of working. */
2512 if (htab->elf.sgot->size >= 0x8000
2513 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2514 elf_hash_table (info)->hgot->root.u.def.value = 0x8000;
2515 }
2516
2517 if (htab->elf.sgotplt)
2518 {
2519 struct elf_link_hash_entry *got;
2520 got = elf_link_hash_lookup (elf_hash_table (info),
2521 "_GLOBAL_OFFSET_TABLE_",
2522 FALSE, FALSE, FALSE);
2523
2524 /* Don't allocate .got.plt section if there are no GOT nor PLT
2525 entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */
2526 if ((got == NULL
2527 || !got->ref_regular_nonweak)
2528 && (htab->elf.sgotplt->size
2529 == GOTPLT_HEADER_SIZE)
2530 && (htab->elf.splt == NULL
2531 || htab->elf.splt->size == 0)
2532 && (htab->elf.sgot == NULL
2533 || (htab->elf.sgot->size
2534 == get_elf_backend_data (output_bfd)->got_header_size)))
2535 htab->elf.sgotplt->size = 0;
2536 }
2537
2538 /* The check_relocs and adjust_dynamic_symbol entry points have
2539 determined the sizes of the various dynamic sections. Allocate
2540 memory for them. */
2541 for (s = dynobj->sections; s != NULL; s = s->next)
2542 {
2543 if ((s->flags & SEC_LINKER_CREATED) == 0)
2544 continue;
2545
2546 if (s == htab->elf.splt
2547 || s == htab->elf.sgot
2548 || s == htab->elf.sgotplt
2549 || s == htab->sdynbss)
2550 {
2551 /* Strip this section if we don't need it; see the
2552 comment below. */
2553 }
2554 else if (strncmp (s->name, ".rela", 5) == 0)
2555 {
2556 if (s->size != 0)
2557 {
2558 /* We use the reloc_count field as a counter if we need
2559 to copy relocs into the output file. */
2560 s->reloc_count = 0;
2561 }
2562 }
2563 else
2564 {
2565 /* It's not one of our sections. */
2566 continue;
2567 }
2568
2569 if (s->size == 0)
2570 {
2571 /* If we don't need this section, strip it from the
2572 output file. This is mostly to handle .rela.bss and
2573 .rela.plt. We must create both sections in
2574 create_dynamic_sections, because they must be created
2575 before the linker maps input sections to output
2576 sections. The linker does that before
2577 adjust_dynamic_symbol is called, and it is that
2578 function which decides whether anything needs to go
2579 into these sections. */
2580 s->flags |= SEC_EXCLUDE;
2581 continue;
2582 }
2583
2584 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2585 continue;
2586
2587 /* Allocate memory for the section contents. Zero the memory
2588 for the benefit of .rela.plt, which has 4 unused entries
2589 at the beginning, and we don't want garbage. */
2590 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2591 if (s->contents == NULL)
2592 return FALSE;
2593 }
2594
2595 if (elf_hash_table (info)->dynamic_sections_created)
2596 {
2597 /* Add some entries to the .dynamic section. We fill in the
2598 values later, in tilepro_elf_finish_dynamic_sections, but we
2599 must add the entries now so that we get the correct size for
2600 the .dynamic section. The DT_DEBUG entry is filled in by the
2601 dynamic linker and used by the debugger. */
2602 #define add_dynamic_entry(TAG, VAL) \
2603 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2604
2605 if (info->executable)
2606 {
2607 if (!add_dynamic_entry (DT_DEBUG, 0))
2608 return FALSE;
2609 }
2610
2611 if (htab->elf.srelplt->size != 0)
2612 {
2613 if (!add_dynamic_entry (DT_PLTGOT, 0)
2614 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2615 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2616 || !add_dynamic_entry (DT_JMPREL, 0))
2617 return FALSE;
2618 }
2619
2620 if (!add_dynamic_entry (DT_RELA, 0)
2621 || !add_dynamic_entry (DT_RELASZ, 0)
2622 || !add_dynamic_entry (DT_RELAENT, TILEPRO_ELF_RELA_BYTES))
2623 return FALSE;
2624
2625 /* If any dynamic relocs apply to a read-only section,
2626 then we need a DT_TEXTREL entry. */
2627 if ((info->flags & DF_TEXTREL) == 0)
2628 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2629
2630 if (info->flags & DF_TEXTREL)
2631 {
2632 if (!add_dynamic_entry (DT_TEXTREL, 0))
2633 return FALSE;
2634 }
2635 }
2636 #undef add_dynamic_entry
2637
2638 return TRUE;
2639 }
2640 \f
2641 /* Return the base VMA address which should be subtracted from real addresses
2642 when resolving @dtpoff relocation.
2643 This is PT_TLS segment p_vaddr. */
2644
2645 static bfd_vma
2646 dtpoff_base (struct bfd_link_info *info)
2647 {
2648 /* If tls_sec is NULL, we should have signalled an error already. */
2649 if (elf_hash_table (info)->tls_sec == NULL)
2650 return 0;
2651 return elf_hash_table (info)->tls_sec->vma;
2652 }
2653
2654 /* Return the relocation value for R_TILEPRO_TLS_TPOFF32. */
2655
2656 static bfd_vma
2657 tpoff (struct bfd_link_info *info, bfd_vma address)
2658 {
2659 struct elf_link_hash_table *htab = elf_hash_table (info);
2660
2661 /* If tls_sec is NULL, we should have signalled an error already. */
2662 if (htab->tls_sec == NULL)
2663 return 0;
2664
2665 return (address - htab->tls_sec->vma);
2666 }
2667
2668 /* Replace the MASK bits in ADDR with those in INSN, for the next
2669 TILEPRO_BUNDLE_SIZE_IN_BYTES bytes. */
2670
2671 static void
2672 tilepro_replace_insn (bfd_byte *addr, const bfd_byte *mask,
2673 const bfd_byte *insn)
2674 {
2675 int i;
2676 for (i = 0; i < TILEPRO_BUNDLE_SIZE_IN_BYTES; i++)
2677 {
2678 addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]);
2679 }
2680 }
2681
2682 /* Mask to extract the bits corresponding to an instruction in a
2683 specific pipe of a bundle. */
2684 static const bfd_byte insn_mask_X1[] = {
2685 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x7f
2686 };
2687
2688 /* Mask to extract the bits corresponding to an instruction in a
2689 specific pipe of a bundle, minus the destination operand and the
2690 first source operand. */
2691 static const bfd_byte insn_mask_X0_no_dest_no_srca[] = {
2692 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00
2693 };
2694
2695 static const bfd_byte insn_mask_X1_no_dest_no_srca[] = {
2696 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x7f
2697 };
2698
2699 static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = {
2700 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00
2701 };
2702
2703 static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = {
2704 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x78
2705 };
2706
2707 /* Mask to extract the first source operand of an instruction. */
2708 static const bfd_byte srca_mask_X0[] = {
2709 0xc0, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
2710 };
2711
2712 static const bfd_byte srca_mask_X1[] = {
2713 0x00, 0x00, 0x00, 0x00, 0xe0, 0x07, 0x00, 0x00
2714 };
2715
2716 /* Various instructions synthesized to support tls references. */
2717
2718 /* move r0, r0 in the X1 pipe, used for tls le. */
2719 static const bfd_byte insn_tls_le_move_X1[] = {
2720 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x33, 0x08
2721 };
2722
2723 /* move r0, zero in the X0 and X1 pipe, used for tls le. */
2724 static const bfd_byte insn_tls_le_move_zero_X0X1[] = {
2725 0xc0, 0xff, 0xcf, 0x00, 0xe0, 0xff, 0x33, 0x08
2726 };
2727
2728 /* lw r0, r0 in the X1 pipe, used for tls ie. */
2729 static const bfd_byte insn_tls_ie_lw_X1[] = {
2730 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x0b, 0x40
2731 };
2732
2733 /* add r0, r0, tp in various pipes, used for tls ie. */
2734 static const bfd_byte insn_tls_ie_add_X0X1[] = {
2735 0x00, 0x50, 0x0f, 0x00, 0x00, 0xa8, 0x07, 0x08
2736 };
2737 static const bfd_byte insn_tls_ie_add_Y0Y1[] = {
2738 0x00, 0x50, 0x03, 0x08, 0x00, 0xa8, 0x01, 0x8c
2739 };
2740
2741 /* move r0, r0 in various pipes, used for tls gd. */
2742 static const bfd_byte insn_tls_gd_add_X0X1[] = {
2743 0x00, 0xf0, 0xcf, 0x00, 0x00, 0xf8, 0x33, 0x08
2744 };
2745 static const bfd_byte insn_tls_gd_add_Y0Y1[] = {
2746 0x00, 0xf0, 0x0b, 0x18, 0x00, 0xf8, 0x05, 0x9c
2747 };
2748
2749 /* Relocate an TILEPRO ELF section.
2750
2751 The RELOCATE_SECTION function is called by the new ELF backend linker
2752 to handle the relocations for a section.
2753
2754 The relocs are always passed as Rela structures.
2755
2756 This function is responsible for adjusting the section contents as
2757 necessary, and (if generating a relocatable output file) adjusting
2758 the reloc addend as necessary.
2759
2760 This function does not have to worry about setting the reloc
2761 address or the reloc symbol index.
2762
2763 LOCAL_SYMS is a pointer to the swapped in local symbols.
2764
2765 LOCAL_SECTIONS is an array giving the section in the input file
2766 corresponding to the st_shndx field of each local symbol.
2767
2768 The global hash table entry for the global symbols can be found
2769 via elf_sym_hashes (input_bfd).
2770
2771 When generating relocatable output, this function must handle
2772 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2773 going to be the section symbol corresponding to the output
2774 section, which means that the addend must be adjusted
2775 accordingly. */
2776
2777 static bfd_boolean
2778 tilepro_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info,
2779 bfd *input_bfd, asection *input_section,
2780 bfd_byte *contents, Elf_Internal_Rela *relocs,
2781 Elf_Internal_Sym *local_syms,
2782 asection **local_sections)
2783 {
2784 struct tilepro_elf_link_hash_table *htab;
2785 Elf_Internal_Shdr *symtab_hdr;
2786 struct elf_link_hash_entry **sym_hashes;
2787 bfd_vma *local_got_offsets;
2788 bfd_vma got_base;
2789 asection *sreloc;
2790 Elf_Internal_Rela *rel;
2791 Elf_Internal_Rela *relend;
2792 int num_relocs;
2793
2794 htab = tilepro_elf_hash_table (info);
2795 BFD_ASSERT (htab != NULL);
2796 symtab_hdr = &elf_symtab_hdr (input_bfd);
2797 sym_hashes = elf_sym_hashes (input_bfd);
2798 local_got_offsets = elf_local_got_offsets (input_bfd);
2799
2800 if (elf_hash_table (info)->hgot == NULL)
2801 got_base = 0;
2802 else
2803 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2804
2805 sreloc = elf_section_data (input_section)->sreloc;
2806
2807 rel = relocs;
2808 num_relocs = input_section->reloc_count;
2809 relend = relocs + num_relocs;
2810 for (; rel < relend; rel++)
2811 {
2812 int r_type, tls_type;
2813 bfd_boolean is_tls_iele, is_tls_le;
2814 reloc_howto_type *howto;
2815 unsigned long r_symndx;
2816 struct elf_link_hash_entry *h;
2817 Elf_Internal_Sym *sym;
2818 tilepro_create_func create_func;
2819 asection *sec;
2820 bfd_vma relocation;
2821 bfd_reloc_status_type r;
2822 const char *name;
2823 bfd_vma off;
2824 bfd_boolean is_plt = FALSE;
2825
2826 bfd_boolean unresolved_reloc;
2827
2828 r_type = ELF32_R_TYPE (rel->r_info);
2829 if (r_type == R_TILEPRO_GNU_VTINHERIT
2830 || r_type == R_TILEPRO_GNU_VTENTRY)
2831 continue;
2832
2833 if ((unsigned int)r_type >= NELEMS(tilepro_elf_howto_table))
2834 {
2835 /* Not clear if we need to check here, but just be paranoid. */
2836 (*_bfd_error_handler)
2837 (_("%B: unrecognized relocation (0x%x) in section `%A'"),
2838 input_bfd, r_type, input_section);
2839 bfd_set_error (bfd_error_bad_value);
2840 return FALSE;
2841 }
2842
2843 howto = tilepro_elf_howto_table + r_type;
2844
2845 /* This is a final link. */
2846 r_symndx = ELF32_R_SYM (rel->r_info);
2847 h = NULL;
2848 sym = NULL;
2849 sec = NULL;
2850 unresolved_reloc = FALSE;
2851 if (r_symndx < symtab_hdr->sh_info)
2852 {
2853 sym = local_syms + r_symndx;
2854 sec = local_sections[r_symndx];
2855 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2856 }
2857 else
2858 {
2859 bfd_boolean warned;
2860
2861 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2862 r_symndx, symtab_hdr, sym_hashes,
2863 h, sec, relocation,
2864 unresolved_reloc, warned);
2865 if (warned)
2866 {
2867 /* To avoid generating warning messages about truncated
2868 relocations, set the relocation's address to be the same as
2869 the start of this section. */
2870 if (input_section->output_section != NULL)
2871 relocation = input_section->output_section->vma;
2872 else
2873 relocation = 0;
2874 }
2875 }
2876
2877 if (sec != NULL && discarded_section (sec))
2878 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2879 rel, 1, relend, howto, 0, contents);
2880
2881 if (info->relocatable)
2882 continue;
2883
2884 if (h != NULL)
2885 name = h->root.root.string;
2886 else
2887 {
2888 name = (bfd_elf_string_from_elf_section
2889 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2890 if (name == NULL || *name == '\0')
2891 name = bfd_section_name (input_bfd, sec);
2892 }
2893
2894 switch (r_type)
2895 {
2896 case R_TILEPRO_TLS_GD_CALL:
2897 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2898 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2899 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2900 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2901 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
2902 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
2903 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
2904 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
2905 tls_type = GOT_UNKNOWN;
2906 if (h == NULL && local_got_offsets)
2907 tls_type =
2908 _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
2909 else if (h != NULL)
2910 tls_type = tilepro_elf_hash_entry(h)->tls_type;
2911
2912 is_tls_iele = (! info->shared || tls_type == GOT_TLS_IE);
2913 is_tls_le = is_tls_iele && (!info->shared
2914 && (h == NULL || h->dynindx == -1));
2915
2916 if (r_type == R_TILEPRO_TLS_GD_CALL)
2917 {
2918 if (is_tls_le)
2919 {
2920 /* GD -> LE */
2921 tilepro_replace_insn (contents + rel->r_offset,
2922 insn_mask_X1, insn_tls_le_move_X1);
2923 continue;
2924 }
2925 else if (is_tls_iele)
2926 {
2927 /* GD -> IE */
2928 tilepro_replace_insn (contents + rel->r_offset,
2929 insn_mask_X1, insn_tls_ie_lw_X1);
2930 continue;
2931 }
2932
2933 /* GD -> GD */
2934 h = (struct elf_link_hash_entry *)
2935 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
2936 FALSE, TRUE);
2937 BFD_ASSERT (h != NULL);
2938 r_type = R_TILEPRO_JOFFLONG_X1_PLT;
2939 howto = tilepro_elf_howto_table + r_type;
2940 }
2941 else if (r_type == R_TILEPRO_IMM16_X0_TLS_GD_HA
2942 || r_type == R_TILEPRO_IMM16_X0_TLS_IE_HA)
2943 {
2944 if (is_tls_le)
2945 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X0,
2946 insn_tls_le_move_zero_X0X1);
2947 }
2948 else if (r_type == R_TILEPRO_IMM16_X1_TLS_GD_HA
2949 || r_type == R_TILEPRO_IMM16_X1_TLS_IE_HA)
2950 {
2951 if (is_tls_le)
2952 tilepro_replace_insn (contents + rel->r_offset, srca_mask_X1,
2953 insn_tls_le_move_zero_X0X1);
2954 }
2955 else
2956 {
2957 const bfd_byte *mask = NULL;
2958 const bfd_byte *add_insn = NULL;
2959
2960 switch (r_type)
2961 {
2962 case R_TILEPRO_IMM8_X0_TLS_GD_ADD:
2963 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2964 : insn_tls_gd_add_X0X1;
2965 mask = insn_mask_X0_no_dest_no_srca;
2966 break;
2967 case R_TILEPRO_IMM8_X1_TLS_GD_ADD:
2968 add_insn = is_tls_iele ? insn_tls_ie_add_X0X1
2969 : insn_tls_gd_add_X0X1;
2970 mask = insn_mask_X1_no_dest_no_srca;
2971 break;
2972 case R_TILEPRO_IMM8_Y0_TLS_GD_ADD:
2973 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2974 : insn_tls_gd_add_Y0Y1;
2975 mask = insn_mask_Y0_no_dest_no_srca;
2976 break;
2977 case R_TILEPRO_IMM8_Y1_TLS_GD_ADD:
2978 add_insn = is_tls_iele ? insn_tls_ie_add_Y0Y1
2979 : insn_tls_gd_add_Y0Y1;
2980 mask = insn_mask_Y1_no_dest_no_srca;
2981 break;
2982 }
2983
2984 tilepro_replace_insn (contents + rel->r_offset, mask, add_insn);
2985
2986 continue;
2987 }
2988 break;
2989 case R_TILEPRO_TLS_IE_LOAD:
2990 if (!info->shared && (h == NULL || h->dynindx == -1))
2991 /* IE -> LE */
2992 tilepro_replace_insn (contents + rel->r_offset,
2993 insn_mask_X1_no_dest_no_srca,
2994 insn_tls_le_move_X1);
2995 else
2996 /* IE -> IE */
2997 tilepro_replace_insn (contents + rel->r_offset,
2998 insn_mask_X1_no_dest_no_srca,
2999 insn_tls_ie_lw_X1);
3000 continue;
3001 break;
3002 default:
3003 break;
3004 }
3005
3006 switch (r_type)
3007 {
3008 case R_TILEPRO_IMM16_X0_GOT:
3009 case R_TILEPRO_IMM16_X1_GOT:
3010 case R_TILEPRO_IMM16_X0_GOT_LO:
3011 case R_TILEPRO_IMM16_X1_GOT_LO:
3012 case R_TILEPRO_IMM16_X0_GOT_HI:
3013 case R_TILEPRO_IMM16_X1_GOT_HI:
3014 case R_TILEPRO_IMM16_X0_GOT_HA:
3015 case R_TILEPRO_IMM16_X1_GOT_HA:
3016 /* Relocation is to the entry for this symbol in the global
3017 offset table. */
3018 if (htab->elf.sgot == NULL)
3019 abort ();
3020
3021 if (h != NULL)
3022 {
3023 bfd_boolean dyn;
3024
3025 off = h->got.offset;
3026 BFD_ASSERT (off != (bfd_vma) -1);
3027 dyn = elf_hash_table (info)->dynamic_sections_created;
3028
3029 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3030 || (info->shared
3031 && SYMBOL_REFERENCES_LOCAL (info, h)))
3032 {
3033 /* This is actually a static link, or it is a
3034 -Bsymbolic link and the symbol is defined
3035 locally, or the symbol was forced to be local
3036 because of a version file. We must initialize
3037 this entry in the global offset table. Since the
3038 offset must always be a multiple
3039 of 4 for 32-bit, we use the least significant bit
3040 to record whether we have initialized it already.
3041
3042 When doing a dynamic link, we create a .rela.got
3043 relocation entry to initialize the value. This
3044 is done in the finish_dynamic_symbol routine. */
3045 if ((off & 1) != 0)
3046 off &= ~1;
3047 else
3048 {
3049 bfd_put_32 (output_bfd, relocation,
3050 htab->elf.sgot->contents + off);
3051 h->got.offset |= 1;
3052 }
3053 }
3054 else
3055 unresolved_reloc = FALSE;
3056 }
3057 else
3058 {
3059 BFD_ASSERT (local_got_offsets != NULL
3060 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3061
3062 off = local_got_offsets[r_symndx];
3063
3064 /* The offset must always be a multiple of 4 on 32-bit.
3065 We use the least significant bit to record
3066 whether we have already processed this entry. */
3067 if ((off & 1) != 0)
3068 off &= ~1;
3069 else
3070 {
3071 if (info->shared)
3072 {
3073 asection *s;
3074 Elf_Internal_Rela outrel;
3075
3076 /* We need to generate a R_TILEPRO_RELATIVE reloc
3077 for the dynamic linker. */
3078 s = htab->elf.srelgot;
3079 BFD_ASSERT (s != NULL);
3080
3081 outrel.r_offset = (htab->elf.sgot->output_section->vma
3082 + htab->elf.sgot->output_offset
3083 + off);
3084 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3085 outrel.r_addend = relocation;
3086 relocation = 0;
3087 tilepro_elf_append_rela_32 (output_bfd, s, &outrel);
3088 }
3089
3090 bfd_put_32 (output_bfd, relocation,
3091 htab->elf.sgot->contents + off);
3092 local_got_offsets[r_symndx] |= 1;
3093 }
3094 }
3095 relocation = htab->elf.sgot->output_offset + off - got_base;
3096 break;
3097
3098 case R_TILEPRO_JOFFLONG_X1_PLT:
3099 /* Relocation is to the entry for this symbol in the
3100 procedure linkage table. */
3101 BFD_ASSERT (h != NULL);
3102
3103 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3104 {
3105 /* We didn't make a PLT entry for this symbol. This
3106 happens when statically linking PIC code, or when
3107 using -Bsymbolic. */
3108 break;
3109 }
3110
3111 relocation = (htab->elf.splt->output_section->vma
3112 + htab->elf.splt->output_offset
3113 + h->plt.offset);
3114 unresolved_reloc = FALSE;
3115 break;
3116
3117 case R_TILEPRO_32_PCREL:
3118 case R_TILEPRO_16_PCREL:
3119 case R_TILEPRO_8_PCREL:
3120 case R_TILEPRO_IMM16_X0_PCREL:
3121 case R_TILEPRO_IMM16_X1_PCREL:
3122 case R_TILEPRO_IMM16_X0_LO_PCREL:
3123 case R_TILEPRO_IMM16_X1_LO_PCREL:
3124 case R_TILEPRO_IMM16_X0_HI_PCREL:
3125 case R_TILEPRO_IMM16_X1_HI_PCREL:
3126 case R_TILEPRO_IMM16_X0_HA_PCREL:
3127 case R_TILEPRO_IMM16_X1_HA_PCREL:
3128 if (h != NULL
3129 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3130 break;
3131 /* Fall through. */
3132 case R_TILEPRO_32:
3133 case R_TILEPRO_16:
3134 case R_TILEPRO_8:
3135 case R_TILEPRO_LO16:
3136 case R_TILEPRO_HI16:
3137 case R_TILEPRO_HA16:
3138 case R_TILEPRO_COPY:
3139 case R_TILEPRO_GLOB_DAT:
3140 case R_TILEPRO_JMP_SLOT:
3141 case R_TILEPRO_RELATIVE:
3142 case R_TILEPRO_BROFF_X1:
3143 case R_TILEPRO_JOFFLONG_X1:
3144 case R_TILEPRO_IMM8_X0:
3145 case R_TILEPRO_IMM8_Y0:
3146 case R_TILEPRO_IMM8_X1:
3147 case R_TILEPRO_IMM8_Y1:
3148 case R_TILEPRO_DEST_IMM8_X1:
3149 case R_TILEPRO_MT_IMM15_X1:
3150 case R_TILEPRO_MF_IMM15_X1:
3151 case R_TILEPRO_IMM16_X0:
3152 case R_TILEPRO_IMM16_X1:
3153 case R_TILEPRO_IMM16_X0_LO:
3154 case R_TILEPRO_IMM16_X1_LO:
3155 case R_TILEPRO_IMM16_X0_HI:
3156 case R_TILEPRO_IMM16_X1_HI:
3157 case R_TILEPRO_IMM16_X0_HA:
3158 case R_TILEPRO_IMM16_X1_HA:
3159 case R_TILEPRO_MMSTART_X0:
3160 case R_TILEPRO_MMEND_X0:
3161 case R_TILEPRO_MMSTART_X1:
3162 case R_TILEPRO_MMEND_X1:
3163 case R_TILEPRO_SHAMT_X0:
3164 case R_TILEPRO_SHAMT_X1:
3165 case R_TILEPRO_SHAMT_Y0:
3166 case R_TILEPRO_SHAMT_Y1:
3167 if ((input_section->flags & SEC_ALLOC) == 0)
3168 break;
3169
3170 if ((info->shared
3171 && (h == NULL
3172 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3173 || h->root.type != bfd_link_hash_undefweak)
3174 && (! howto->pc_relative
3175 || !SYMBOL_CALLS_LOCAL (info, h)))
3176 || (!info->shared
3177 && h != NULL
3178 && h->dynindx != -1
3179 && !h->non_got_ref
3180 && ((h->def_dynamic
3181 && !h->def_regular)
3182 || h->root.type == bfd_link_hash_undefweak
3183 || h->root.type == bfd_link_hash_undefined)))
3184 {
3185 Elf_Internal_Rela outrel;
3186 bfd_boolean skip, relocate = FALSE;
3187
3188 /* When generating a shared object, these relocations
3189 are copied into the output file to be resolved at run
3190 time. */
3191
3192 BFD_ASSERT (sreloc != NULL);
3193
3194 skip = FALSE;
3195
3196 outrel.r_offset =
3197 _bfd_elf_section_offset (output_bfd, info, input_section,
3198 rel->r_offset);
3199 if (outrel.r_offset == (bfd_vma) -1)
3200 skip = TRUE;
3201 else if (outrel.r_offset == (bfd_vma) -2)
3202 skip = TRUE, relocate = TRUE;
3203 outrel.r_offset += (input_section->output_section->vma
3204 + input_section->output_offset);
3205
3206 switch (r_type)
3207 {
3208 case R_TILEPRO_32_PCREL:
3209 case R_TILEPRO_16_PCREL:
3210 case R_TILEPRO_8_PCREL:
3211 /* If the symbol is not dynamic, we should not keep
3212 a dynamic relocation. But an .rela.* slot has been
3213 allocated for it, output R_TILEPRO_NONE.
3214 FIXME: Add code tracking needed dynamic relocs as
3215 e.g. i386 has. */
3216 if (h->dynindx == -1)
3217 skip = TRUE, relocate = TRUE;
3218 break;
3219 }
3220
3221 if (skip)
3222 memset (&outrel, 0, sizeof outrel);
3223 /* h->dynindx may be -1 if the symbol was marked to
3224 become local. */
3225 else if (h != NULL &&
3226 h->dynindx != -1
3227 && (! is_plt
3228 || !info->shared
3229 || !SYMBOLIC_BIND (info, h)
3230 || !h->def_regular))
3231 {
3232 BFD_ASSERT (h->dynindx != -1);
3233 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
3234 outrel.r_addend = rel->r_addend;
3235 }
3236 else
3237 {
3238 if (r_type == R_TILEPRO_32)
3239 {
3240 outrel.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3241 outrel.r_addend = relocation + rel->r_addend;
3242 }
3243 else
3244 {
3245 long indx;
3246
3247 outrel.r_addend = relocation + rel->r_addend;
3248
3249 if (is_plt)
3250 sec = htab->elf.splt;
3251
3252 if (bfd_is_abs_section (sec))
3253 indx = 0;
3254 else if (sec == NULL || sec->owner == NULL)
3255 {
3256 bfd_set_error (bfd_error_bad_value);
3257 return FALSE;
3258 }
3259 else
3260 {
3261 asection *osec;
3262
3263 /* We are turning this relocation into one
3264 against a section symbol. It would be
3265 proper to subtract the symbol's value,
3266 osec->vma, from the emitted reloc addend,
3267 but ld.so expects buggy relocs. */
3268 osec = sec->output_section;
3269 indx = elf_section_data (osec)->dynindx;
3270
3271 if (indx == 0)
3272 {
3273 osec = htab->elf.text_index_section;
3274 indx = elf_section_data (osec)->dynindx;
3275 }
3276
3277 /* FIXME: we really should be able to link non-pic
3278 shared libraries. */
3279 if (indx == 0)
3280 {
3281 BFD_FAIL ();
3282 (*_bfd_error_handler)
3283 (_("%B: probably compiled without -fPIC?"),
3284 input_bfd);
3285 bfd_set_error (bfd_error_bad_value);
3286 return FALSE;
3287 }
3288 }
3289
3290 outrel.r_info = ELF32_R_INFO (indx, r_type);
3291 }
3292 }
3293
3294 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3295
3296 /* This reloc will be computed at runtime, so there's no
3297 need to do anything now. */
3298 if (! relocate)
3299 continue;
3300 }
3301 break;
3302
3303 case R_TILEPRO_IMM16_X0_TLS_LE:
3304 case R_TILEPRO_IMM16_X1_TLS_LE:
3305 case R_TILEPRO_IMM16_X0_TLS_LE_LO:
3306 case R_TILEPRO_IMM16_X1_TLS_LE_LO:
3307 case R_TILEPRO_IMM16_X0_TLS_LE_HI:
3308 case R_TILEPRO_IMM16_X1_TLS_LE_HI:
3309 case R_TILEPRO_IMM16_X0_TLS_LE_HA:
3310 case R_TILEPRO_IMM16_X1_TLS_LE_HA:
3311 if (info->shared)
3312 {
3313 Elf_Internal_Rela outrel;
3314 bfd_boolean skip;
3315
3316 BFD_ASSERT (sreloc != NULL);
3317 skip = FALSE;
3318 outrel.r_offset =
3319 _bfd_elf_section_offset (output_bfd, info, input_section,
3320 rel->r_offset);
3321 if (outrel.r_offset == (bfd_vma) -1)
3322 skip = TRUE;
3323 else if (outrel.r_offset == (bfd_vma) -2)
3324 skip = TRUE;
3325 outrel.r_offset += (input_section->output_section->vma
3326 + input_section->output_offset);
3327 if (skip)
3328 memset (&outrel, 0, sizeof outrel);
3329 else
3330 {
3331 outrel.r_info = ELF32_R_INFO (0, r_type);
3332 outrel.r_addend = relocation - dtpoff_base (info)
3333 + rel->r_addend;
3334 }
3335
3336 tilepro_elf_append_rela_32 (output_bfd, sreloc, &outrel);
3337 continue;
3338 }
3339 relocation = tpoff (info, relocation);
3340 break;
3341
3342 case R_TILEPRO_IMM16_X0_TLS_GD:
3343 case R_TILEPRO_IMM16_X1_TLS_GD:
3344 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3345 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3346 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3347 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3348 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3349 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3350 case R_TILEPRO_IMM16_X0_TLS_IE:
3351 case R_TILEPRO_IMM16_X1_TLS_IE:
3352 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3353 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3354 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3355 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3356 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3357 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3358 r_type = tilepro_elf_tls_transition (info, r_type, h == NULL);
3359 tls_type = GOT_UNKNOWN;
3360 if (h == NULL && local_got_offsets)
3361 tls_type
3362 = _bfd_tilepro_elf_local_got_tls_type (input_bfd) [r_symndx];
3363 else if (h != NULL)
3364 {
3365 tls_type = tilepro_elf_hash_entry(h)->tls_type;
3366 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3367 r_type = tilepro_tls_translate_to_le (r_type);
3368 }
3369 if (tls_type == GOT_TLS_IE)
3370 r_type = tilepro_tls_translate_to_ie (r_type);
3371
3372 if (r_type == R_TILEPRO_IMM16_X0_TLS_LE
3373 || r_type == R_TILEPRO_IMM16_X1_TLS_LE
3374 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_LO
3375 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_LO
3376 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HI
3377 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HI
3378 || r_type == R_TILEPRO_IMM16_X0_TLS_LE_HA
3379 || r_type == R_TILEPRO_IMM16_X1_TLS_LE_HA)
3380 {
3381 relocation = tpoff (info, relocation);
3382 break;
3383 }
3384
3385 if (h != NULL)
3386 {
3387 off = h->got.offset;
3388 h->got.offset |= 1;
3389 }
3390 else
3391 {
3392 BFD_ASSERT (local_got_offsets != NULL);
3393 off = local_got_offsets[r_symndx];
3394 local_got_offsets[r_symndx] |= 1;
3395 }
3396
3397 if (htab->elf.sgot == NULL)
3398 abort ();
3399
3400 if ((off & 1) != 0)
3401 off &= ~1;
3402 else
3403 {
3404 Elf_Internal_Rela outrel;
3405 int indx = 0;
3406 bfd_boolean need_relocs = FALSE;
3407
3408 if (htab->elf.srelgot == NULL)
3409 abort ();
3410
3411 if (h != NULL)
3412 {
3413 bfd_boolean dyn;
3414 dyn = htab->elf.dynamic_sections_created;
3415
3416 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3417 && (!info->shared
3418 || !SYMBOL_REFERENCES_LOCAL (info, h)))
3419 {
3420 indx = h->dynindx;
3421 }
3422 }
3423
3424 /* The GOT entries have not been initialized yet. Do it
3425 now, and emit any relocations. */
3426 if ((info->shared || indx != 0)
3427 && (h == NULL
3428 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3429 || h->root.type != bfd_link_hash_undefweak))
3430 need_relocs = TRUE;
3431
3432 switch (r_type)
3433 {
3434 case R_TILEPRO_IMM16_X0_TLS_IE:
3435 case R_TILEPRO_IMM16_X1_TLS_IE:
3436 case R_TILEPRO_IMM16_X0_TLS_IE_LO:
3437 case R_TILEPRO_IMM16_X1_TLS_IE_LO:
3438 case R_TILEPRO_IMM16_X0_TLS_IE_HI:
3439 case R_TILEPRO_IMM16_X1_TLS_IE_HI:
3440 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3441 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3442 if (need_relocs) {
3443 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3444 outrel.r_offset = (htab->elf.sgot->output_section->vma
3445 + htab->elf.sgot->output_offset + off);
3446 outrel.r_addend = 0;
3447 if (indx == 0)
3448 outrel.r_addend = relocation - dtpoff_base (info);
3449 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_TPOFF32);
3450 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3451 &outrel);
3452 } else {
3453 bfd_put_32 (output_bfd, tpoff (info, relocation),
3454 htab->elf.sgot->contents + off);
3455 }
3456 break;
3457
3458 case R_TILEPRO_IMM16_X0_TLS_GD:
3459 case R_TILEPRO_IMM16_X1_TLS_GD:
3460 case R_TILEPRO_IMM16_X0_TLS_GD_LO:
3461 case R_TILEPRO_IMM16_X1_TLS_GD_LO:
3462 case R_TILEPRO_IMM16_X0_TLS_GD_HI:
3463 case R_TILEPRO_IMM16_X1_TLS_GD_HI:
3464 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3465 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3466 if (need_relocs) {
3467 outrel.r_offset = (htab->elf.sgot->output_section->vma
3468 + htab->elf.sgot->output_offset + off);
3469 outrel.r_addend = 0;
3470 outrel.r_info = ELF32_R_INFO (indx, R_TILEPRO_TLS_DTPMOD32);
3471 bfd_put_32 (output_bfd, 0, htab->elf.sgot->contents + off);
3472 tilepro_elf_append_rela_32 (output_bfd, htab->elf.srelgot,
3473 &outrel);
3474 if (indx == 0)
3475 {
3476 BFD_ASSERT (! unresolved_reloc);
3477 bfd_put_32 (output_bfd,
3478 relocation - dtpoff_base (info),
3479 (htab->elf.sgot->contents + off +
3480 TILEPRO_BYTES_PER_WORD));
3481 }
3482 else
3483 {
3484 bfd_put_32 (output_bfd, 0,
3485 (htab->elf.sgot->contents + off +
3486 TILEPRO_BYTES_PER_WORD));
3487 outrel.r_info = ELF32_R_INFO (indx,
3488 R_TILEPRO_TLS_DTPOFF32);
3489 outrel.r_offset += TILEPRO_BYTES_PER_WORD;
3490 tilepro_elf_append_rela_32 (output_bfd,
3491 htab->elf.srelgot, &outrel);
3492 }
3493 }
3494
3495 else {
3496 /* If we are not emitting relocations for a
3497 general dynamic reference, then we must be in a
3498 static link or an executable link with the
3499 symbol binding locally. Mark it as belonging
3500 to module 1, the executable. */
3501 bfd_put_32 (output_bfd, 1,
3502 htab->elf.sgot->contents + off );
3503 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
3504 htab->elf.sgot->contents + off +
3505 TILEPRO_BYTES_PER_WORD);
3506 }
3507 break;
3508 }
3509 }
3510
3511 if (off >= (bfd_vma) -2)
3512 abort ();
3513
3514 relocation = htab->elf.sgot->output_offset + off - got_base;
3515 unresolved_reloc = FALSE;
3516 howto = tilepro_elf_howto_table + r_type;
3517 break;
3518
3519 default:
3520 break;
3521 }
3522
3523 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3524 because such sections are not SEC_ALLOC and thus ld.so will
3525 not process them. */
3526 if (unresolved_reloc
3527 && !((input_section->flags & SEC_DEBUGGING) != 0
3528 && h->def_dynamic)
3529 && _bfd_elf_section_offset (output_bfd, info, input_section,
3530 rel->r_offset) != (bfd_vma) -1)
3531 (*_bfd_error_handler)
3532 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3533 input_bfd,
3534 input_section,
3535 (long) rel->r_offset,
3536 howto->name,
3537 h->root.root.string);
3538
3539 r = bfd_reloc_continue;
3540
3541 /* For the _HA types, we add 0x8000 so that if bit 15 is set,
3542 * we will increment bit 16. The howto->rightshift takes care
3543 * of the rest for us. */
3544 switch (r_type)
3545 {
3546 case R_TILEPRO_HA16:
3547 case R_TILEPRO_IMM16_X0_HA:
3548 case R_TILEPRO_IMM16_X1_HA:
3549 case R_TILEPRO_IMM16_X0_HA_PCREL:
3550 case R_TILEPRO_IMM16_X1_HA_PCREL:
3551 case R_TILEPRO_IMM16_X0_GOT_HA:
3552 case R_TILEPRO_IMM16_X1_GOT_HA:
3553 case R_TILEPRO_IMM16_X0_TLS_GD_HA:
3554 case R_TILEPRO_IMM16_X1_TLS_GD_HA:
3555 case R_TILEPRO_IMM16_X0_TLS_IE_HA:
3556 case R_TILEPRO_IMM16_X1_TLS_IE_HA:
3557 relocation += 0x8000;
3558 break;
3559 }
3560
3561 /* Get the operand creation function, if any. */
3562 create_func = reloc_to_create_func[r_type];
3563 if (create_func == NULL)
3564 {
3565 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3566 contents, rel->r_offset,
3567 relocation, rel->r_addend);
3568 }
3569 else
3570 {
3571 if (howto->pc_relative)
3572 {
3573 relocation -=
3574 input_section->output_section->vma + input_section->output_offset;
3575 if (howto->pcrel_offset)
3576 relocation -= rel->r_offset;
3577 }
3578
3579 bfd_byte *data;
3580
3581 /* Add the relocation addend if any to the final target value */
3582 relocation += rel->r_addend;
3583
3584 /* Do basic range checking */
3585 r = bfd_check_overflow (howto->complain_on_overflow,
3586 howto->bitsize,
3587 howto->rightshift,
3588 32,
3589 relocation);
3590
3591 /*
3592 * Write the relocated value out into the raw section data.
3593 * Don't put a relocation out in the .rela section.
3594 */
3595 tilepro_bundle_bits mask = create_func(-1);
3596 tilepro_bundle_bits value = create_func(relocation >> howto->rightshift);
3597
3598 /* Only touch bytes while the mask is not 0, so we
3599 don't write to out of bounds memory if this is actually
3600 a 16-bit switch instruction. */
3601 for (data = contents + rel->r_offset; mask != 0; data++)
3602 {
3603 bfd_byte byte_mask = (bfd_byte)mask;
3604 *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask);
3605 mask >>= 8;
3606 value >>= 8;
3607 }
3608 }
3609
3610 if (r != bfd_reloc_ok)
3611 {
3612 const char *msg = NULL;
3613
3614 switch (r)
3615 {
3616 case bfd_reloc_overflow:
3617 r = info->callbacks->reloc_overflow
3618 (info, (h ? &h->root : NULL), name, howto->name,
3619 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
3620 break;
3621
3622 case bfd_reloc_undefined:
3623 r = info->callbacks->undefined_symbol
3624 (info, name, input_bfd, input_section, rel->r_offset,
3625 TRUE);
3626 break;
3627
3628 case bfd_reloc_outofrange:
3629 msg = _("internal error: out of range error");
3630 break;
3631
3632 case bfd_reloc_notsupported:
3633 msg = _("internal error: unsupported relocation error");
3634 break;
3635
3636 case bfd_reloc_dangerous:
3637 msg = _("internal error: dangerous relocation");
3638 break;
3639
3640 default:
3641 msg = _("internal error: unknown error");
3642 break;
3643 }
3644
3645 if (msg)
3646 r = info->callbacks->warning
3647 (info, msg, name, input_bfd, input_section, rel->r_offset);
3648
3649 if (! r)
3650 return FALSE;
3651 }
3652 }
3653
3654 return TRUE;
3655 }
3656
3657 /* Finish up dynamic symbol handling. We set the contents of various
3658 dynamic sections here. */
3659
3660 static bfd_boolean
3661 tilepro_elf_finish_dynamic_symbol (bfd *output_bfd,
3662 struct bfd_link_info *info,
3663 struct elf_link_hash_entry *h,
3664 Elf_Internal_Sym *sym)
3665 {
3666 struct tilepro_elf_link_hash_table *htab;
3667
3668 htab = tilepro_elf_hash_table (info);
3669 BFD_ASSERT (htab != NULL);
3670
3671 if (h->plt.offset != (bfd_vma) -1)
3672 {
3673 asection *splt;
3674 asection *srela;
3675 asection *sgotplt;
3676 Elf_Internal_Rela rela;
3677 bfd_byte *loc;
3678 bfd_vma r_offset;
3679
3680 int rela_index;
3681
3682 /* This symbol has an entry in the PLT. Set it up. */
3683
3684 BFD_ASSERT (h->dynindx != -1);
3685
3686 splt = htab->elf.splt;
3687 srela = htab->elf.srelplt;
3688 sgotplt = htab->elf.sgotplt;
3689
3690 if (splt == NULL || srela == NULL)
3691 abort ();
3692
3693 /* Fill in the entry in the procedure linkage table. */
3694 rela_index = tilepro_plt_entry_build (splt, sgotplt, h->plt.offset,
3695 &r_offset);
3696
3697 /* Fill in the entry in the global offset table, which initially points
3698 to the beginning of the plt. */
3699 bfd_put_32 (output_bfd, splt->output_section->vma + splt->output_offset,
3700 sgotplt->contents + r_offset);
3701
3702 /* Fill in the entry in the .rela.plt section. */
3703 rela.r_offset = (sgotplt->output_section->vma
3704 + sgotplt->output_offset
3705 + r_offset);
3706 rela.r_addend = 0;
3707 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_JMP_SLOT);
3708
3709 loc = srela->contents + rela_index * sizeof (Elf32_External_Rela);
3710 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3711
3712 if (!h->def_regular)
3713 {
3714 /* Mark the symbol as undefined, rather than as defined in
3715 the .plt section. Leave the value alone. */
3716 sym->st_shndx = SHN_UNDEF;
3717 /* If the symbol is weak, we do need to clear the value.
3718 Otherwise, the PLT entry would provide a definition for
3719 the symbol even if the symbol wasn't defined anywhere,
3720 and so the symbol would never be NULL. */
3721 if (!h->ref_regular_nonweak)
3722 sym->st_value = 0;
3723 }
3724 }
3725
3726 if (h->got.offset != (bfd_vma) -1
3727 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3728 && tilepro_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3729 {
3730 asection *sgot;
3731 asection *srela;
3732 Elf_Internal_Rela rela;
3733
3734 /* This symbol has an entry in the GOT. Set it up. */
3735
3736 sgot = htab->elf.sgot;
3737 srela = htab->elf.srelgot;
3738 BFD_ASSERT (sgot != NULL && srela != NULL);
3739
3740 rela.r_offset = (sgot->output_section->vma
3741 + sgot->output_offset
3742 + (h->got.offset &~ (bfd_vma) 1));
3743
3744 /* If this is a -Bsymbolic link, and the symbol is defined
3745 locally, we just want to emit a RELATIVE reloc. Likewise if
3746 the symbol was forced to be local because of a version file.
3747 The entry in the global offset table will already have been
3748 initialized in the relocate_section function. */
3749 if (info->shared
3750 && (info->symbolic || h->dynindx == -1)
3751 && h->def_regular)
3752 {
3753 asection *sec = h->root.u.def.section;
3754 rela.r_info = ELF32_R_INFO (0, R_TILEPRO_RELATIVE);
3755 rela.r_addend = (h->root.u.def.value
3756 + sec->output_section->vma
3757 + sec->output_offset);
3758 }
3759 else
3760 {
3761 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_GLOB_DAT);
3762 rela.r_addend = 0;
3763 }
3764
3765 bfd_put_32 (output_bfd, 0,
3766 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3767 tilepro_elf_append_rela_32 (output_bfd, srela, &rela);
3768 }
3769
3770 if (h->needs_copy)
3771 {
3772 asection *s;
3773 Elf_Internal_Rela rela;
3774
3775 /* This symbols needs a copy reloc. Set it up. */
3776 BFD_ASSERT (h->dynindx != -1);
3777
3778 s = htab->srelbss;
3779 BFD_ASSERT (s != NULL);
3780
3781 rela.r_offset = (h->root.u.def.value
3782 + h->root.u.def.section->output_section->vma
3783 + h->root.u.def.section->output_offset);
3784 rela.r_info = ELF32_R_INFO (h->dynindx, R_TILEPRO_COPY);
3785 rela.r_addend = 0;
3786 tilepro_elf_append_rela_32 (output_bfd, s, &rela);
3787 }
3788
3789 /* Mark some specially defined symbols as absolute. */
3790 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3791 || (h == htab->elf.hgot || h == htab->elf.hplt))
3792 sym->st_shndx = SHN_ABS;
3793
3794 return TRUE;
3795 }
3796
3797 /* Finish up the dynamic sections. */
3798
3799 static bfd_boolean
3800 tilepro_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3801 bfd *dynobj, asection *sdyn,
3802 asection *splt ATTRIBUTE_UNUSED)
3803 {
3804 Elf32_External_Dyn *dyncon, *dynconend;
3805 struct tilepro_elf_link_hash_table *htab;
3806
3807 htab = tilepro_elf_hash_table (info);
3808 BFD_ASSERT (htab != NULL);
3809 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3810 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3811 for (; dyncon < dynconend; dyncon++)
3812 {
3813 Elf_Internal_Dyn dyn;
3814 asection *s;
3815
3816 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3817
3818 switch (dyn.d_tag)
3819 {
3820 case DT_PLTGOT:
3821 s = htab->elf.sgotplt;
3822 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3823 break;
3824 case DT_JMPREL:
3825 s = htab->elf.srelplt;
3826 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3827 break;
3828 case DT_PLTRELSZ:
3829 s = htab->elf.srelplt;
3830 dyn.d_un.d_val = s->size;
3831 break;
3832 default:
3833 continue;
3834 }
3835
3836 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3837 }
3838 return TRUE;
3839 }
3840
3841 static bfd_boolean
3842 tilepro_elf_finish_dynamic_sections (bfd *output_bfd,
3843 struct bfd_link_info *info)
3844 {
3845 bfd *dynobj;
3846 asection *sdyn;
3847 struct tilepro_elf_link_hash_table *htab;
3848
3849 htab = tilepro_elf_hash_table (info);
3850 BFD_ASSERT (htab != NULL);
3851 dynobj = htab->elf.dynobj;
3852
3853 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3854
3855 if (elf_hash_table (info)->dynamic_sections_created)
3856 {
3857 asection *splt;
3858 bfd_boolean ret;
3859
3860 splt = htab->elf.splt;
3861 BFD_ASSERT (splt != NULL && sdyn != NULL);
3862
3863 ret = tilepro_finish_dyn (output_bfd, info, dynobj, sdyn, splt);
3864
3865 if (ret != TRUE)
3866 return ret;
3867
3868 /* Fill in the first entry in the procedure linkage table. */
3869 if (splt->size > 0)
3870 memcpy (splt->contents, tilepro_plt0_entry, PLT_HEADER_SIZE);
3871
3872 elf_section_data (splt->output_section)->this_hdr.sh_entsize
3873 = PLT_ENTRY_SIZE;
3874 }
3875
3876 if (htab->elf.sgotplt)
3877 {
3878 if (bfd_is_abs_section (htab->elf.sgotplt->output_section))
3879 {
3880 (*_bfd_error_handler)
3881 (_("discarded output section: `%A'"), htab->elf.sgotplt);
3882 return FALSE;
3883 }
3884
3885 if (htab->elf.sgotplt->size > 0)
3886 {
3887 /* Write the first two entries in .got.plt, needed for the dynamic
3888 linker. */
3889 bfd_put_32 (output_bfd, (bfd_vma) -1,
3890 htab->elf.sgotplt->contents);
3891 bfd_put_32 (output_bfd, (bfd_vma) 0,
3892 htab->elf.sgotplt->contents + GOT_ENTRY_SIZE);
3893 }
3894
3895 elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize
3896 = GOT_ENTRY_SIZE;
3897 }
3898
3899 if (htab->elf.sgot)
3900 {
3901 if (htab->elf.sgot->size > 0)
3902 {
3903 /* Set the first entry in the global offset table to the address of
3904 the dynamic section. */
3905 bfd_vma val = (sdyn ?
3906 sdyn->output_section->vma + sdyn->output_offset :
3907 0);
3908 bfd_put_32 (output_bfd, val, htab->elf.sgot->contents);
3909 }
3910
3911 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize
3912 = GOT_ENTRY_SIZE;
3913 }
3914
3915 return TRUE;
3916 }
3917
3918 \f
3919
3920 /* Return address for Ith PLT stub in section PLT, for relocation REL
3921 or (bfd_vma) -1 if it should not be included. */
3922
3923 static bfd_vma
3924 tilepro_elf_plt_sym_val (bfd_vma i, const asection *plt,
3925 const arelent *rel ATTRIBUTE_UNUSED)
3926 {
3927 return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE;
3928 }
3929
3930 static enum elf_reloc_type_class
3931 tilepro_reloc_type_class (const Elf_Internal_Rela *rela)
3932 {
3933 switch ((int) ELF32_R_TYPE (rela->r_info))
3934 {
3935 case R_TILEPRO_RELATIVE:
3936 return reloc_class_relative;
3937 case R_TILEPRO_JMP_SLOT:
3938 return reloc_class_plt;
3939 case R_TILEPRO_COPY:
3940 return reloc_class_copy;
3941 default:
3942 return reloc_class_normal;
3943 }
3944 }
3945
3946 static int
3947 tilepro_additional_program_headers (bfd *abfd,
3948 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3949 {
3950 /* Each .intrpt section specified by the user adds another PT_LOAD
3951 header since the sections are discontiguous. */
3952 static const char intrpt_sections[4][9] =
3953 {
3954 ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3"
3955 };
3956 int count = 0;
3957 int i;
3958
3959 for (i = 0; i < 4; i++)
3960 {
3961 asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]);
3962 if (sec != NULL && (sec->flags & SEC_LOAD) != 0)
3963 ++count;
3964 }
3965
3966 /* Add four "padding" headers in to leave room in case a custom linker
3967 script does something fancy. Otherwise ld complains that it ran
3968 out of program headers and refuses to link. */
3969 count += 4;
3970
3971 return count;
3972 }
3973
3974 #define ELF_ARCH bfd_arch_tilepro
3975 #define ELF_TARGET_ID TILEPRO_ELF_DATA
3976 #define ELF_MACHINE_CODE EM_TILEPRO
3977 #define ELF_MAXPAGESIZE 0x10000
3978 #define ELF_COMMONPAGESIZE 0x10000
3979
3980 #define TARGET_LITTLE_SYM bfd_elf32_tilepro_vec
3981 #define TARGET_LITTLE_NAME "elf32-tilepro"
3982
3983 #define elf_backend_reloc_type_class tilepro_reloc_type_class
3984
3985 #define bfd_elf32_bfd_reloc_name_lookup tilepro_reloc_name_lookup
3986 #define bfd_elf32_bfd_link_hash_table_create tilepro_elf_link_hash_table_create
3987 #define bfd_elf32_bfd_reloc_type_lookup tilepro_reloc_type_lookup
3988
3989 #define elf_backend_copy_indirect_symbol tilepro_elf_copy_indirect_symbol
3990 #define elf_backend_create_dynamic_sections tilepro_elf_create_dynamic_sections
3991 #define elf_backend_check_relocs tilepro_elf_check_relocs
3992 #define elf_backend_adjust_dynamic_symbol tilepro_elf_adjust_dynamic_symbol
3993 #define elf_backend_omit_section_dynsym tilepro_elf_omit_section_dynsym
3994 #define elf_backend_size_dynamic_sections tilepro_elf_size_dynamic_sections
3995 #define elf_backend_relocate_section tilepro_elf_relocate_section
3996 #define elf_backend_finish_dynamic_symbol tilepro_elf_finish_dynamic_symbol
3997 #define elf_backend_finish_dynamic_sections tilepro_elf_finish_dynamic_sections
3998 #define elf_backend_gc_mark_hook tilepro_elf_gc_mark_hook
3999 #define elf_backend_gc_sweep_hook tilepro_elf_gc_sweep_hook
4000 #define elf_backend_plt_sym_val tilepro_elf_plt_sym_val
4001 #define elf_info_to_howto_rel NULL
4002 #define elf_info_to_howto tilepro_info_to_howto_rela
4003 #define elf_backend_grok_prstatus tilepro_elf_grok_prstatus
4004 #define elf_backend_grok_psinfo tilepro_elf_grok_psinfo
4005 #define elf_backend_additional_program_headers tilepro_additional_program_headers
4006
4007 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4008
4009 #define elf_backend_can_gc_sections 1
4010 #define elf_backend_can_refcount 1
4011 #define elf_backend_want_got_plt 1
4012 #define elf_backend_plt_readonly 1
4013 /* Align PLT mod 64 byte L2 line size. */
4014 #define elf_backend_plt_alignment 6
4015 #define elf_backend_want_plt_sym 1
4016 #define elf_backend_got_header_size GOT_ENTRY_SIZE
4017 #define elf_backend_rela_normal 1
4018 #define elf_backend_default_execstack 0
4019
4020 #include "elf32-target.h"
The GNU Binutils are a collection of binary tools.