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* aout-adobe.c (aout_32_bfd_reloc_name_lookup): Define.
[deliverable/binutils-gdb.git] / bfd / elf64-mips.c
1 /* MIPS-specific support for 64-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2007 Free Software Foundation, Inc.
4 Ian Lance Taylor, Cygnus Support
5 Linker support added by Mark Mitchell, CodeSourcery, LLC.
6 <mark@codesourcery.com>
7
8 This file is part of BFD, the Binary File Descriptor library.
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
23
24 /* This file supports the 64-bit MIPS ELF ABI.
25
26 The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
27 overrides the usual ELF reloc handling, and handles reading and
28 writing the relocations here. */
29
30 /* TODO: Many things are unsupported, even if there is some code for it
31 . (which was mostly stolen from elf32-mips.c and slightly adapted).
32 .
33 . - Relocation handling for REL relocs is wrong in many cases and
34 . generally untested.
35 . - Relocation handling for RELA relocs related to GOT support are
36 . also likely to be wrong.
37 . - Support for MIPS16 is untested.
38 . - Combined relocs with RSS_* entries are unsupported.
39 . - The whole GOT handling for NewABI is missing, some parts of
40 . the OldABI version is still lying around and should be removed.
41 */
42
43 #include "bfd.h"
44 #include "sysdep.h"
45 #include "libbfd.h"
46 #include "aout/ar.h"
47 #include "bfdlink.h"
48 #include "genlink.h"
49 #include "elf-bfd.h"
50 #include "elfxx-mips.h"
51 #include "elf/mips.h"
52
53 /* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to
54 use ECOFF. However, we support it anyhow for an easier changeover. */
55 #include "coff/sym.h"
56 #include "coff/symconst.h"
57 #include "coff/internal.h"
58 #include "coff/ecoff.h"
59 /* The 64 bit versions of the mdebug data structures are in alpha.h. */
60 #include "coff/alpha.h"
61 #define ECOFF_SIGNED_64
62 #include "ecoffswap.h"
63
64 static void mips_elf64_swap_reloc_in
65 (bfd *, const Elf64_Mips_External_Rel *, Elf64_Mips_Internal_Rela *);
66 static void mips_elf64_swap_reloca_in
67 (bfd *, const Elf64_Mips_External_Rela *, Elf64_Mips_Internal_Rela *);
68 static void mips_elf64_swap_reloc_out
69 (bfd *, const Elf64_Mips_Internal_Rela *, Elf64_Mips_External_Rel *);
70 static void mips_elf64_swap_reloca_out
71 (bfd *, const Elf64_Mips_Internal_Rela *, Elf64_Mips_External_Rela *);
72 static void mips_elf64_be_swap_reloc_in
73 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
74 static void mips_elf64_be_swap_reloc_out
75 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
76 static void mips_elf64_be_swap_reloca_in
77 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
78 static void mips_elf64_be_swap_reloca_out
79 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
80 static reloc_howto_type *bfd_elf64_bfd_reloc_type_lookup
81 (bfd *, bfd_reloc_code_real_type);
82 static reloc_howto_type *mips_elf64_rtype_to_howto
83 (unsigned int, bfd_boolean);
84 static void mips_elf64_info_to_howto_rel
85 (bfd *, arelent *, Elf_Internal_Rela *);
86 static void mips_elf64_info_to_howto_rela
87 (bfd *, arelent *, Elf_Internal_Rela *);
88 static long mips_elf64_get_reloc_upper_bound
89 (bfd *, asection *);
90 static long mips_elf64_canonicalize_reloc
91 (bfd *, asection *, arelent **, asymbol **);
92 static long mips_elf64_get_dynamic_reloc_upper_bound
93 (bfd *);
94 static long mips_elf64_canonicalize_dynamic_reloc
95 (bfd *, arelent **, asymbol **);
96 static bfd_boolean mips_elf64_slurp_one_reloc_table
97 (bfd *, asection *, Elf_Internal_Shdr *, bfd_size_type, arelent *,
98 asymbol **, bfd_boolean);
99 static bfd_boolean mips_elf64_slurp_reloc_table
100 (bfd *, asection *, asymbol **, bfd_boolean);
101 static void mips_elf64_write_relocs
102 (bfd *, asection *, void *);
103 static void mips_elf64_write_rel
104 (bfd *, asection *, Elf_Internal_Shdr *, int *, void *);
105 static void mips_elf64_write_rela
106 (bfd *, asection *, Elf_Internal_Shdr *, int *, void *);
107 static bfd_reloc_status_type mips_elf64_gprel16_reloc
108 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
109 static bfd_reloc_status_type mips_elf64_literal_reloc
110 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
111 static bfd_reloc_status_type mips_elf64_gprel32_reloc
112 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
113 static bfd_reloc_status_type mips_elf64_shift6_reloc
114 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
115 static bfd_reloc_status_type mips16_gprel_reloc
116 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
117 static bfd_boolean mips_elf64_assign_gp
118 (bfd *, bfd_vma *);
119 static bfd_reloc_status_type mips_elf64_final_gp
120 (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *);
121 static bfd_boolean mips_elf64_object_p
122 (bfd *);
123 static irix_compat_t elf64_mips_irix_compat
124 (bfd *);
125 static bfd_boolean elf64_mips_grok_prstatus
126 (bfd *, Elf_Internal_Note *);
127 static bfd_boolean elf64_mips_grok_psinfo
128 (bfd *, Elf_Internal_Note *);
129
130 extern const bfd_target bfd_elf64_bigmips_vec;
131 extern const bfd_target bfd_elf64_littlemips_vec;
132
133 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
134 from smaller values. Start with zero, widen, *then* decrement. */
135 #define MINUS_ONE (((bfd_vma)0) - 1)
136
137 /* The number of local .got entries we reserve. */
138 #define MIPS_RESERVED_GOTNO (2)
139 \f
140 /* The relocation table used for SHT_REL sections. */
141
142 static reloc_howto_type mips_elf64_howto_table_rel[] =
143 {
144 /* No relocation. */
145 HOWTO (R_MIPS_NONE, /* type */
146 0, /* rightshift */
147 0, /* size (0 = byte, 1 = short, 2 = long) */
148 0, /* bitsize */
149 FALSE, /* pc_relative */
150 0, /* bitpos */
151 complain_overflow_dont, /* complain_on_overflow */
152 _bfd_mips_elf_generic_reloc, /* special_function */
153 "R_MIPS_NONE", /* name */
154 FALSE, /* partial_inplace */
155 0, /* src_mask */
156 0, /* dst_mask */
157 FALSE), /* pcrel_offset */
158
159 /* 16 bit relocation. */
160 HOWTO (R_MIPS_16, /* type */
161 0, /* rightshift */
162 2, /* size (0 = byte, 1 = short, 2 = long) */
163 16, /* bitsize */
164 FALSE, /* pc_relative */
165 0, /* bitpos */
166 complain_overflow_signed, /* complain_on_overflow */
167 _bfd_mips_elf_generic_reloc, /* special_function */
168 "R_MIPS_16", /* name */
169 TRUE, /* partial_inplace */
170 0x0000ffff, /* src_mask */
171 0x0000ffff, /* dst_mask */
172 FALSE), /* pcrel_offset */
173
174 /* 32 bit relocation. */
175 HOWTO (R_MIPS_32, /* type */
176 0, /* rightshift */
177 2, /* size (0 = byte, 1 = short, 2 = long) */
178 32, /* bitsize */
179 FALSE, /* pc_relative */
180 0, /* bitpos */
181 complain_overflow_dont, /* complain_on_overflow */
182 _bfd_mips_elf_generic_reloc, /* special_function */
183 "R_MIPS_32", /* name */
184 TRUE, /* partial_inplace */
185 0xffffffff, /* src_mask */
186 0xffffffff, /* dst_mask */
187 FALSE), /* pcrel_offset */
188
189 /* 32 bit symbol relative relocation. */
190 HOWTO (R_MIPS_REL32, /* type */
191 0, /* rightshift */
192 2, /* size (0 = byte, 1 = short, 2 = long) */
193 32, /* bitsize */
194 FALSE, /* pc_relative */
195 0, /* bitpos */
196 complain_overflow_dont, /* complain_on_overflow */
197 _bfd_mips_elf_generic_reloc, /* special_function */
198 "R_MIPS_REL32", /* name */
199 TRUE, /* partial_inplace */
200 0xffffffff, /* src_mask */
201 0xffffffff, /* dst_mask */
202 FALSE), /* pcrel_offset */
203
204 /* 26 bit jump address. */
205 HOWTO (R_MIPS_26, /* type */
206 2, /* rightshift */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
208 26, /* bitsize */
209 FALSE, /* pc_relative */
210 0, /* bitpos */
211 complain_overflow_dont, /* complain_on_overflow */
212 /* This needs complex overflow
213 detection, because the upper 36
214 bits must match the PC + 4. */
215 _bfd_mips_elf_generic_reloc, /* special_function */
216 "R_MIPS_26", /* name */
217 TRUE, /* partial_inplace */
218 0x03ffffff, /* src_mask */
219 0x03ffffff, /* dst_mask */
220 FALSE), /* pcrel_offset */
221
222 /* R_MIPS_HI16 and R_MIPS_LO16 are unsupported for NewABI REL.
223 However, the native IRIX6 tools use them, so we try our best. */
224
225 /* High 16 bits of symbol value. */
226 HOWTO (R_MIPS_HI16, /* type */
227 16, /* rightshift */
228 2, /* size (0 = byte, 1 = short, 2 = long) */
229 16, /* bitsize */
230 FALSE, /* pc_relative */
231 0, /* bitpos */
232 complain_overflow_dont, /* complain_on_overflow */
233 _bfd_mips_elf_hi16_reloc, /* special_function */
234 "R_MIPS_HI16", /* name */
235 TRUE, /* partial_inplace */
236 0x0000ffff, /* src_mask */
237 0x0000ffff, /* dst_mask */
238 FALSE), /* pcrel_offset */
239
240 /* Low 16 bits of symbol value. */
241 HOWTO (R_MIPS_LO16, /* type */
242 0, /* rightshift */
243 2, /* size (0 = byte, 1 = short, 2 = long) */
244 16, /* bitsize */
245 FALSE, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_dont, /* complain_on_overflow */
248 _bfd_mips_elf_lo16_reloc, /* special_function */
249 "R_MIPS_LO16", /* name */
250 TRUE, /* partial_inplace */
251 0x0000ffff, /* src_mask */
252 0x0000ffff, /* dst_mask */
253 FALSE), /* pcrel_offset */
254
255 /* GP relative reference. */
256 HOWTO (R_MIPS_GPREL16, /* type */
257 0, /* rightshift */
258 2, /* size (0 = byte, 1 = short, 2 = long) */
259 16, /* bitsize */
260 FALSE, /* pc_relative */
261 0, /* bitpos */
262 complain_overflow_signed, /* complain_on_overflow */
263 mips_elf64_gprel16_reloc, /* special_function */
264 "R_MIPS_GPREL16", /* name */
265 TRUE, /* partial_inplace */
266 0x0000ffff, /* src_mask */
267 0x0000ffff, /* dst_mask */
268 FALSE), /* pcrel_offset */
269
270 /* Reference to literal section. */
271 HOWTO (R_MIPS_LITERAL, /* type */
272 0, /* rightshift */
273 2, /* size (0 = byte, 1 = short, 2 = long) */
274 16, /* bitsize */
275 FALSE, /* pc_relative */
276 0, /* bitpos */
277 complain_overflow_signed, /* complain_on_overflow */
278 mips_elf64_literal_reloc, /* special_function */
279 "R_MIPS_LITERAL", /* name */
280 TRUE, /* partial_inplace */
281 0x0000ffff, /* src_mask */
282 0x0000ffff, /* dst_mask */
283 FALSE), /* pcrel_offset */
284
285 /* Reference to global offset table. */
286 HOWTO (R_MIPS_GOT16, /* type */
287 0, /* rightshift */
288 2, /* size (0 = byte, 1 = short, 2 = long) */
289 16, /* bitsize */
290 FALSE, /* pc_relative */
291 0, /* bitpos */
292 complain_overflow_signed, /* complain_on_overflow */
293 _bfd_mips_elf_got16_reloc, /* special_function */
294 "R_MIPS_GOT16", /* name */
295 TRUE, /* partial_inplace */
296 0x0000ffff, /* src_mask */
297 0x0000ffff, /* dst_mask */
298 FALSE), /* pcrel_offset */
299
300 /* 16 bit PC relative reference. Note that the ABI document has a typo
301 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
302 We do the right thing here. */
303 HOWTO (R_MIPS_PC16, /* type */
304 2, /* rightshift */
305 2, /* size (0 = byte, 1 = short, 2 = long) */
306 16, /* bitsize */
307 TRUE, /* pc_relative */
308 0, /* bitpos */
309 complain_overflow_signed, /* complain_on_overflow */
310 _bfd_mips_elf_generic_reloc, /* special_function */
311 "R_MIPS_PC16", /* name */
312 TRUE, /* partial_inplace */
313 0x0000ffff, /* src_mask */
314 0x0000ffff, /* dst_mask */
315 TRUE), /* pcrel_offset */
316
317 /* 16 bit call through global offset table. */
318 HOWTO (R_MIPS_CALL16, /* type */
319 0, /* rightshift */
320 2, /* size (0 = byte, 1 = short, 2 = long) */
321 16, /* bitsize */
322 FALSE, /* pc_relative */
323 0, /* bitpos */
324 complain_overflow_signed, /* complain_on_overflow */
325 _bfd_mips_elf_generic_reloc, /* special_function */
326 "R_MIPS_CALL16", /* name */
327 TRUE, /* partial_inplace */
328 0x0000ffff, /* src_mask */
329 0x0000ffff, /* dst_mask */
330 FALSE), /* pcrel_offset */
331
332 /* 32 bit GP relative reference. */
333 HOWTO (R_MIPS_GPREL32, /* type */
334 0, /* rightshift */
335 2, /* size (0 = byte, 1 = short, 2 = long) */
336 32, /* bitsize */
337 FALSE, /* pc_relative */
338 0, /* bitpos */
339 complain_overflow_dont, /* complain_on_overflow */
340 mips_elf64_gprel32_reloc, /* special_function */
341 "R_MIPS_GPREL32", /* name */
342 TRUE, /* partial_inplace */
343 0xffffffff, /* src_mask */
344 0xffffffff, /* dst_mask */
345 FALSE), /* pcrel_offset */
346
347 EMPTY_HOWTO (13),
348 EMPTY_HOWTO (14),
349 EMPTY_HOWTO (15),
350
351 /* A 5 bit shift field. */
352 HOWTO (R_MIPS_SHIFT5, /* type */
353 0, /* rightshift */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
355 5, /* bitsize */
356 FALSE, /* pc_relative */
357 6, /* bitpos */
358 complain_overflow_bitfield, /* complain_on_overflow */
359 _bfd_mips_elf_generic_reloc, /* special_function */
360 "R_MIPS_SHIFT5", /* name */
361 TRUE, /* partial_inplace */
362 0x000007c0, /* src_mask */
363 0x000007c0, /* dst_mask */
364 FALSE), /* pcrel_offset */
365
366 /* A 6 bit shift field. */
367 HOWTO (R_MIPS_SHIFT6, /* type */
368 0, /* rightshift */
369 2, /* size (0 = byte, 1 = short, 2 = long) */
370 6, /* bitsize */
371 FALSE, /* pc_relative */
372 6, /* bitpos */
373 complain_overflow_bitfield, /* complain_on_overflow */
374 mips_elf64_shift6_reloc, /* special_function */
375 "R_MIPS_SHIFT6", /* name */
376 TRUE, /* partial_inplace */
377 0x000007c4, /* src_mask */
378 0x000007c4, /* dst_mask */
379 FALSE), /* pcrel_offset */
380
381 /* 64 bit relocation. */
382 HOWTO (R_MIPS_64, /* type */
383 0, /* rightshift */
384 4, /* size (0 = byte, 1 = short, 2 = long) */
385 64, /* bitsize */
386 FALSE, /* pc_relative */
387 0, /* bitpos */
388 complain_overflow_dont, /* complain_on_overflow */
389 _bfd_mips_elf_generic_reloc, /* special_function */
390 "R_MIPS_64", /* name */
391 TRUE, /* partial_inplace */
392 MINUS_ONE, /* src_mask */
393 MINUS_ONE, /* dst_mask */
394 FALSE), /* pcrel_offset */
395
396 /* Displacement in the global offset table. */
397 HOWTO (R_MIPS_GOT_DISP, /* type */
398 0, /* rightshift */
399 2, /* size (0 = byte, 1 = short, 2 = long) */
400 16, /* bitsize */
401 FALSE, /* pc_relative */
402 0, /* bitpos */
403 complain_overflow_signed, /* complain_on_overflow */
404 _bfd_mips_elf_generic_reloc, /* special_function */
405 "R_MIPS_GOT_DISP", /* name */
406 TRUE, /* partial_inplace */
407 0x0000ffff, /* src_mask */
408 0x0000ffff, /* dst_mask */
409 FALSE), /* pcrel_offset */
410
411 /* Displacement to page pointer in the global offset table. */
412 HOWTO (R_MIPS_GOT_PAGE, /* type */
413 0, /* rightshift */
414 2, /* size (0 = byte, 1 = short, 2 = long) */
415 16, /* bitsize */
416 FALSE, /* pc_relative */
417 0, /* bitpos */
418 complain_overflow_signed, /* complain_on_overflow */
419 _bfd_mips_elf_generic_reloc, /* special_function */
420 "R_MIPS_GOT_PAGE", /* name */
421 TRUE, /* partial_inplace */
422 0x0000ffff, /* src_mask */
423 0x0000ffff, /* dst_mask */
424 FALSE), /* pcrel_offset */
425
426 /* Offset from page pointer in the global offset table. */
427 HOWTO (R_MIPS_GOT_OFST, /* type */
428 0, /* rightshift */
429 2, /* size (0 = byte, 1 = short, 2 = long) */
430 16, /* bitsize */
431 FALSE, /* pc_relative */
432 0, /* bitpos */
433 complain_overflow_signed, /* complain_on_overflow */
434 _bfd_mips_elf_generic_reloc, /* special_function */
435 "R_MIPS_GOT_OFST", /* name */
436 TRUE, /* partial_inplace */
437 0x0000ffff, /* src_mask */
438 0x0000ffff, /* dst_mask */
439 FALSE), /* pcrel_offset */
440
441 /* High 16 bits of displacement in global offset table. */
442 HOWTO (R_MIPS_GOT_HI16, /* type */
443 0, /* rightshift */
444 2, /* size (0 = byte, 1 = short, 2 = long) */
445 16, /* bitsize */
446 FALSE, /* pc_relative */
447 0, /* bitpos */
448 complain_overflow_dont, /* complain_on_overflow */
449 _bfd_mips_elf_generic_reloc, /* special_function */
450 "R_MIPS_GOT_HI16", /* name */
451 TRUE, /* partial_inplace */
452 0x0000ffff, /* src_mask */
453 0x0000ffff, /* dst_mask */
454 FALSE), /* pcrel_offset */
455
456 /* Low 16 bits of displacement in global offset table. */
457 HOWTO (R_MIPS_GOT_LO16, /* type */
458 0, /* rightshift */
459 2, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_dont, /* complain_on_overflow */
464 _bfd_mips_elf_generic_reloc, /* special_function */
465 "R_MIPS_GOT_LO16", /* name */
466 TRUE, /* partial_inplace */
467 0x0000ffff, /* src_mask */
468 0x0000ffff, /* dst_mask */
469 FALSE), /* pcrel_offset */
470
471 /* 64 bit subtraction. */
472 HOWTO (R_MIPS_SUB, /* type */
473 0, /* rightshift */
474 4, /* size (0 = byte, 1 = short, 2 = long) */
475 64, /* bitsize */
476 FALSE, /* pc_relative */
477 0, /* bitpos */
478 complain_overflow_dont, /* complain_on_overflow */
479 _bfd_mips_elf_generic_reloc, /* special_function */
480 "R_MIPS_SUB", /* name */
481 TRUE, /* partial_inplace */
482 MINUS_ONE, /* src_mask */
483 MINUS_ONE, /* dst_mask */
484 FALSE), /* pcrel_offset */
485
486 /* Insert the addend as an instruction. */
487 /* FIXME: Not handled correctly. */
488 HOWTO (R_MIPS_INSERT_A, /* type */
489 0, /* rightshift */
490 2, /* size (0 = byte, 1 = short, 2 = long) */
491 32, /* bitsize */
492 FALSE, /* pc_relative */
493 0, /* bitpos */
494 complain_overflow_dont, /* complain_on_overflow */
495 _bfd_mips_elf_generic_reloc, /* special_function */
496 "R_MIPS_INSERT_A", /* name */
497 TRUE, /* partial_inplace */
498 0xffffffff, /* src_mask */
499 0xffffffff, /* dst_mask */
500 FALSE), /* pcrel_offset */
501
502 /* Insert the addend as an instruction, and change all relocations
503 to refer to the old instruction at the address. */
504 /* FIXME: Not handled correctly. */
505 HOWTO (R_MIPS_INSERT_B, /* type */
506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_dont, /* complain_on_overflow */
512 _bfd_mips_elf_generic_reloc, /* special_function */
513 "R_MIPS_INSERT_B", /* name */
514 TRUE, /* partial_inplace */
515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
519 /* Delete a 32 bit instruction. */
520 /* FIXME: Not handled correctly. */
521 HOWTO (R_MIPS_DELETE, /* type */
522 0, /* rightshift */
523 2, /* size (0 = byte, 1 = short, 2 = long) */
524 32, /* bitsize */
525 FALSE, /* pc_relative */
526 0, /* bitpos */
527 complain_overflow_dont, /* complain_on_overflow */
528 _bfd_mips_elf_generic_reloc, /* special_function */
529 "R_MIPS_DELETE", /* name */
530 TRUE, /* partial_inplace */
531 0xffffffff, /* src_mask */
532 0xffffffff, /* dst_mask */
533 FALSE), /* pcrel_offset */
534
535 /* The MIPS ELF64 ABI Draft wants us to support these for REL relocations.
536 We don't, because
537 a) It means building the addend from a R_MIPS_HIGHEST/R_MIPS_HIGHER/
538 R_MIPS_HI16/R_MIPS_LO16 sequence with varying ordering, using
539 fallable heuristics.
540 b) No other NewABI toolchain actually emits such relocations. */
541 EMPTY_HOWTO (R_MIPS_HIGHER),
542 EMPTY_HOWTO (R_MIPS_HIGHEST),
543
544 /* High 16 bits of displacement in global offset table. */
545 HOWTO (R_MIPS_CALL_HI16, /* type */
546 0, /* rightshift */
547 2, /* size (0 = byte, 1 = short, 2 = long) */
548 16, /* bitsize */
549 FALSE, /* pc_relative */
550 0, /* bitpos */
551 complain_overflow_dont, /* complain_on_overflow */
552 _bfd_mips_elf_generic_reloc, /* special_function */
553 "R_MIPS_CALL_HI16", /* name */
554 TRUE, /* partial_inplace */
555 0x0000ffff, /* src_mask */
556 0x0000ffff, /* dst_mask */
557 FALSE), /* pcrel_offset */
558
559 /* Low 16 bits of displacement in global offset table. */
560 HOWTO (R_MIPS_CALL_LO16, /* type */
561 0, /* rightshift */
562 2, /* size (0 = byte, 1 = short, 2 = long) */
563 16, /* bitsize */
564 FALSE, /* pc_relative */
565 0, /* bitpos */
566 complain_overflow_dont, /* complain_on_overflow */
567 _bfd_mips_elf_generic_reloc, /* special_function */
568 "R_MIPS_CALL_LO16", /* name */
569 TRUE, /* partial_inplace */
570 0x0000ffff, /* src_mask */
571 0x0000ffff, /* dst_mask */
572 FALSE), /* pcrel_offset */
573
574 /* Section displacement, used by an associated event location section. */
575 HOWTO (R_MIPS_SCN_DISP, /* type */
576 0, /* rightshift */
577 2, /* size (0 = byte, 1 = short, 2 = long) */
578 32, /* bitsize */
579 FALSE, /* pc_relative */
580 0, /* bitpos */
581 complain_overflow_dont, /* complain_on_overflow */
582 _bfd_mips_elf_generic_reloc, /* special_function */
583 "R_MIPS_SCN_DISP", /* name */
584 TRUE, /* partial_inplace */
585 0xffffffff, /* src_mask */
586 0xffffffff, /* dst_mask */
587 FALSE), /* pcrel_offset */
588
589 HOWTO (R_MIPS_REL16, /* type */
590 0, /* rightshift */
591 1, /* size (0 = byte, 1 = short, 2 = long) */
592 16, /* bitsize */
593 FALSE, /* pc_relative */
594 0, /* bitpos */
595 complain_overflow_signed, /* complain_on_overflow */
596 _bfd_mips_elf_generic_reloc, /* special_function */
597 "R_MIPS_REL16", /* name */
598 TRUE, /* partial_inplace */
599 0xffff, /* src_mask */
600 0xffff, /* dst_mask */
601 FALSE), /* pcrel_offset */
602
603 /* These two are obsolete. */
604 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
605 EMPTY_HOWTO (R_MIPS_PJUMP),
606
607 /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
608 It must be used for multigot GOT's (and only there). */
609 HOWTO (R_MIPS_RELGOT, /* type */
610 0, /* rightshift */
611 2, /* size (0 = byte, 1 = short, 2 = long) */
612 32, /* bitsize */
613 FALSE, /* pc_relative */
614 0, /* bitpos */
615 complain_overflow_dont, /* complain_on_overflow */
616 _bfd_mips_elf_generic_reloc, /* special_function */
617 "R_MIPS_RELGOT", /* name */
618 TRUE, /* partial_inplace */
619 0xffffffff, /* src_mask */
620 0xffffffff, /* dst_mask */
621 FALSE), /* pcrel_offset */
622
623 /* Protected jump conversion. This is an optimization hint. No
624 relocation is required for correctness. */
625 HOWTO (R_MIPS_JALR, /* type */
626 0, /* rightshift */
627 2, /* size (0 = byte, 1 = short, 2 = long) */
628 32, /* bitsize */
629 FALSE, /* pc_relative */
630 0, /* bitpos */
631 complain_overflow_dont, /* complain_on_overflow */
632 _bfd_mips_elf_generic_reloc, /* special_function */
633 "R_MIPS_JALR", /* name */
634 FALSE, /* partial_inplace */
635 0, /* src_mask */
636 0x00000000, /* dst_mask */
637 FALSE), /* pcrel_offset */
638
639 /* TLS relocations. */
640 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
641 EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
642
643 HOWTO (R_MIPS_TLS_DTPMOD64, /* type */
644 0, /* rightshift */
645 4, /* size (0 = byte, 1 = short, 2 = long) */
646 64, /* bitsize */
647 FALSE, /* pc_relative */
648 0, /* bitpos */
649 complain_overflow_dont, /* complain_on_overflow */
650 _bfd_mips_elf_generic_reloc, /* special_function */
651 "R_MIPS_TLS_DTPMOD64", /* name */
652 TRUE, /* partial_inplace */
653 MINUS_ONE, /* src_mask */
654 MINUS_ONE, /* dst_mask */
655 FALSE), /* pcrel_offset */
656
657 HOWTO (R_MIPS_TLS_DTPREL64, /* type */
658 0, /* rightshift */
659 4, /* size (0 = byte, 1 = short, 2 = long) */
660 64, /* bitsize */
661 FALSE, /* pc_relative */
662 0, /* bitpos */
663 complain_overflow_dont, /* complain_on_overflow */
664 _bfd_mips_elf_generic_reloc, /* special_function */
665 "R_MIPS_TLS_DTPREL64", /* name */
666 TRUE, /* partial_inplace */
667 MINUS_ONE, /* src_mask */
668 MINUS_ONE, /* dst_mask */
669 FALSE), /* pcrel_offset */
670
671 /* TLS general dynamic variable reference. */
672 HOWTO (R_MIPS_TLS_GD, /* type */
673 0, /* rightshift */
674 2, /* size (0 = byte, 1 = short, 2 = long) */
675 16, /* bitsize */
676 FALSE, /* pc_relative */
677 0, /* bitpos */
678 complain_overflow_signed, /* complain_on_overflow */
679 _bfd_mips_elf_generic_reloc, /* special_function */
680 "R_MIPS_TLS_GD", /* name */
681 TRUE, /* partial_inplace */
682 0x0000ffff, /* src_mask */
683 0x0000ffff, /* dst_mask */
684 FALSE), /* pcrel_offset */
685
686 /* TLS local dynamic variable reference. */
687 HOWTO (R_MIPS_TLS_LDM, /* type */
688 0, /* rightshift */
689 2, /* size (0 = byte, 1 = short, 2 = long) */
690 16, /* bitsize */
691 FALSE, /* pc_relative */
692 0, /* bitpos */
693 complain_overflow_signed, /* complain_on_overflow */
694 _bfd_mips_elf_generic_reloc, /* special_function */
695 "R_MIPS_TLS_LDM", /* name */
696 TRUE, /* partial_inplace */
697 0x0000ffff, /* src_mask */
698 0x0000ffff, /* dst_mask */
699 FALSE), /* pcrel_offset */
700
701 /* TLS local dynamic offset. */
702 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
703 0, /* rightshift */
704 2, /* size (0 = byte, 1 = short, 2 = long) */
705 16, /* bitsize */
706 FALSE, /* pc_relative */
707 0, /* bitpos */
708 complain_overflow_signed, /* complain_on_overflow */
709 _bfd_mips_elf_generic_reloc, /* special_function */
710 "R_MIPS_TLS_DTPREL_HI16", /* name */
711 TRUE, /* partial_inplace */
712 0x0000ffff, /* src_mask */
713 0x0000ffff, /* dst_mask */
714 FALSE), /* pcrel_offset */
715
716 /* TLS local dynamic offset. */
717 HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
718 0, /* rightshift */
719 2, /* size (0 = byte, 1 = short, 2 = long) */
720 16, /* bitsize */
721 FALSE, /* pc_relative */
722 0, /* bitpos */
723 complain_overflow_signed, /* complain_on_overflow */
724 _bfd_mips_elf_generic_reloc, /* special_function */
725 "R_MIPS_TLS_DTPREL_LO16", /* name */
726 TRUE, /* partial_inplace */
727 0x0000ffff, /* src_mask */
728 0x0000ffff, /* dst_mask */
729 FALSE), /* pcrel_offset */
730
731 /* TLS thread pointer offset. */
732 HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
733 0, /* rightshift */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
735 16, /* bitsize */
736 FALSE, /* pc_relative */
737 0, /* bitpos */
738 complain_overflow_signed, /* complain_on_overflow */
739 _bfd_mips_elf_generic_reloc, /* special_function */
740 "R_MIPS_TLS_GOTTPREL", /* name */
741 TRUE, /* partial_inplace */
742 0x0000ffff, /* src_mask */
743 0x0000ffff, /* dst_mask */
744 FALSE), /* pcrel_offset */
745
746 /* TLS IE dynamic relocations. */
747 EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
748
749 HOWTO (R_MIPS_TLS_TPREL64, /* type */
750 0, /* rightshift */
751 4, /* size (0 = byte, 1 = short, 2 = long) */
752 64, /* bitsize */
753 FALSE, /* pc_relative */
754 0, /* bitpos */
755 complain_overflow_dont, /* complain_on_overflow */
756 _bfd_mips_elf_generic_reloc, /* special_function */
757 "R_MIPS_TLS_TPREL64", /* name */
758 TRUE, /* partial_inplace */
759 MINUS_ONE, /* src_mask */
760 MINUS_ONE, /* dst_mask */
761 FALSE), /* pcrel_offset */
762
763 /* TLS thread pointer offset. */
764 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
765 0, /* rightshift */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
767 16, /* bitsize */
768 FALSE, /* pc_relative */
769 0, /* bitpos */
770 complain_overflow_signed, /* complain_on_overflow */
771 _bfd_mips_elf_generic_reloc, /* special_function */
772 "R_MIPS_TLS_TPREL_HI16", /* name */
773 TRUE, /* partial_inplace */
774 0x0000ffff, /* src_mask */
775 0x0000ffff, /* dst_mask */
776 FALSE), /* pcrel_offset */
777
778 /* TLS thread pointer offset. */
779 HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
780 0, /* rightshift */
781 2, /* size (0 = byte, 1 = short, 2 = long) */
782 16, /* bitsize */
783 FALSE, /* pc_relative */
784 0, /* bitpos */
785 complain_overflow_signed, /* complain_on_overflow */
786 _bfd_mips_elf_generic_reloc, /* special_function */
787 "R_MIPS_TLS_TPREL_LO16", /* name */
788 TRUE, /* partial_inplace */
789 0x0000ffff, /* src_mask */
790 0x0000ffff, /* dst_mask */
791 FALSE), /* pcrel_offset */
792
793 /* 32 bit relocation with no addend. */
794 HOWTO (R_MIPS_GLOB_DAT, /* type */
795 0, /* rightshift */
796 2, /* size (0 = byte, 1 = short, 2 = long) */
797 32, /* bitsize */
798 FALSE, /* pc_relative */
799 0, /* bitpos */
800 complain_overflow_dont, /* complain_on_overflow */
801 _bfd_mips_elf_generic_reloc, /* special_function */
802 "R_MIPS_GLOB_DAT", /* name */
803 FALSE, /* partial_inplace */
804 0x0, /* src_mask */
805 0xffffffff, /* dst_mask */
806 FALSE), /* pcrel_offset */
807 };
808
809 /* The relocation table used for SHT_RELA sections. */
810
811 static reloc_howto_type mips_elf64_howto_table_rela[] =
812 {
813 /* No relocation. */
814 HOWTO (R_MIPS_NONE, /* type */
815 0, /* rightshift */
816 0, /* size (0 = byte, 1 = short, 2 = long) */
817 0, /* bitsize */
818 FALSE, /* pc_relative */
819 0, /* bitpos */
820 complain_overflow_dont, /* complain_on_overflow */
821 _bfd_mips_elf_generic_reloc, /* special_function */
822 "R_MIPS_NONE", /* name */
823 FALSE, /* partial_inplace */
824 0, /* src_mask */
825 0, /* dst_mask */
826 FALSE), /* pcrel_offset */
827
828 /* 16 bit relocation. */
829 HOWTO (R_MIPS_16, /* type */
830 0, /* rightshift */
831 2, /* size (0 = byte, 1 = short, 2 = long) */
832 16, /* bitsize */
833 FALSE, /* pc_relative */
834 0, /* bitpos */
835 complain_overflow_signed, /* complain_on_overflow */
836 _bfd_mips_elf_generic_reloc, /* special_function */
837 "R_MIPS_16", /* name */
838 FALSE, /* partial_inplace */
839 0, /* src_mask */
840 0x0000ffff, /* dst_mask */
841 FALSE), /* pcrel_offset */
842
843 /* 32 bit relocation. */
844 HOWTO (R_MIPS_32, /* type */
845 0, /* rightshift */
846 2, /* size (0 = byte, 1 = short, 2 = long) */
847 32, /* bitsize */
848 FALSE, /* pc_relative */
849 0, /* bitpos */
850 complain_overflow_dont, /* complain_on_overflow */
851 _bfd_mips_elf_generic_reloc, /* special_function */
852 "R_MIPS_32", /* name */
853 FALSE, /* partial_inplace */
854 0, /* src_mask */
855 0xffffffff, /* dst_mask */
856 FALSE), /* pcrel_offset */
857
858 /* 32 bit symbol relative relocation. */
859 HOWTO (R_MIPS_REL32, /* type */
860 0, /* rightshift */
861 2, /* size (0 = byte, 1 = short, 2 = long) */
862 32, /* bitsize */
863 FALSE, /* pc_relative */
864 0, /* bitpos */
865 complain_overflow_dont, /* complain_on_overflow */
866 _bfd_mips_elf_generic_reloc, /* special_function */
867 "R_MIPS_REL32", /* name */
868 FALSE, /* partial_inplace */
869 0, /* src_mask */
870 0xffffffff, /* dst_mask */
871 FALSE), /* pcrel_offset */
872
873 /* 26 bit jump address. */
874 HOWTO (R_MIPS_26, /* type */
875 2, /* rightshift */
876 2, /* size (0 = byte, 1 = short, 2 = long) */
877 26, /* bitsize */
878 FALSE, /* pc_relative */
879 0, /* bitpos */
880 complain_overflow_dont, /* complain_on_overflow */
881 /* This needs complex overflow
882 detection, because the upper 36
883 bits must match the PC + 4. */
884 _bfd_mips_elf_generic_reloc, /* special_function */
885 "R_MIPS_26", /* name */
886 FALSE, /* partial_inplace */
887 0, /* src_mask */
888 0x03ffffff, /* dst_mask */
889 FALSE), /* pcrel_offset */
890
891 /* High 16 bits of symbol value. */
892 HOWTO (R_MIPS_HI16, /* type */
893 0, /* rightshift */
894 2, /* size (0 = byte, 1 = short, 2 = long) */
895 16, /* bitsize */
896 FALSE, /* pc_relative */
897 0, /* bitpos */
898 complain_overflow_dont, /* complain_on_overflow */
899 _bfd_mips_elf_generic_reloc, /* special_function */
900 "R_MIPS_HI16", /* name */
901 FALSE, /* partial_inplace */
902 0, /* src_mask */
903 0x0000ffff, /* dst_mask */
904 FALSE), /* pcrel_offset */
905
906 /* Low 16 bits of symbol value. */
907 HOWTO (R_MIPS_LO16, /* type */
908 0, /* rightshift */
909 2, /* size (0 = byte, 1 = short, 2 = long) */
910 16, /* bitsize */
911 FALSE, /* pc_relative */
912 0, /* bitpos */
913 complain_overflow_dont, /* complain_on_overflow */
914 _bfd_mips_elf_generic_reloc, /* special_function */
915 "R_MIPS_LO16", /* name */
916 FALSE, /* partial_inplace */
917 0, /* src_mask */
918 0x0000ffff, /* dst_mask */
919 FALSE), /* pcrel_offset */
920
921 /* GP relative reference. */
922 HOWTO (R_MIPS_GPREL16, /* type */
923 0, /* rightshift */
924 2, /* size (0 = byte, 1 = short, 2 = long) */
925 16, /* bitsize */
926 FALSE, /* pc_relative */
927 0, /* bitpos */
928 complain_overflow_signed, /* complain_on_overflow */
929 mips_elf64_gprel16_reloc, /* special_function */
930 "R_MIPS_GPREL16", /* name */
931 FALSE, /* partial_inplace */
932 0, /* src_mask */
933 0x0000ffff, /* dst_mask */
934 FALSE), /* pcrel_offset */
935
936 /* Reference to literal section. */
937 HOWTO (R_MIPS_LITERAL, /* type */
938 0, /* rightshift */
939 2, /* size (0 = byte, 1 = short, 2 = long) */
940 16, /* bitsize */
941 FALSE, /* pc_relative */
942 0, /* bitpos */
943 complain_overflow_signed, /* complain_on_overflow */
944 mips_elf64_literal_reloc, /* special_function */
945 "R_MIPS_LITERAL", /* name */
946 FALSE, /* partial_inplace */
947 0, /* src_mask */
948 0x0000ffff, /* dst_mask */
949 FALSE), /* pcrel_offset */
950
951 /* Reference to global offset table. */
952 HOWTO (R_MIPS_GOT16, /* type */
953 0, /* rightshift */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
955 16, /* bitsize */
956 FALSE, /* pc_relative */
957 0, /* bitpos */
958 complain_overflow_signed, /* complain_on_overflow */
959 _bfd_mips_elf_generic_reloc, /* special_function */
960 "R_MIPS_GOT16", /* name */
961 FALSE, /* partial_inplace */
962 0, /* src_mask */
963 0x0000ffff, /* dst_mask */
964 FALSE), /* pcrel_offset */
965
966 /* 16 bit PC relative reference. Note that the ABI document has a typo
967 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
968 We do the right thing here. */
969 HOWTO (R_MIPS_PC16, /* type */
970 2, /* rightshift */
971 2, /* size (0 = byte, 1 = short, 2 = long) */
972 16, /* bitsize */
973 TRUE, /* pc_relative */
974 0, /* bitpos */
975 complain_overflow_signed, /* complain_on_overflow */
976 _bfd_mips_elf_generic_reloc, /* special_function */
977 "R_MIPS_PC16", /* name */
978 FALSE, /* partial_inplace */
979 0, /* src_mask */
980 0x0000ffff, /* dst_mask */
981 TRUE), /* pcrel_offset */
982
983 /* 16 bit call through global offset table. */
984 HOWTO (R_MIPS_CALL16, /* type */
985 0, /* rightshift */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
987 16, /* bitsize */
988 FALSE, /* pc_relative */
989 0, /* bitpos */
990 complain_overflow_signed, /* complain_on_overflow */
991 _bfd_mips_elf_generic_reloc, /* special_function */
992 "R_MIPS_CALL16", /* name */
993 FALSE, /* partial_inplace */
994 0, /* src_mask */
995 0x0000ffff, /* dst_mask */
996 FALSE), /* pcrel_offset */
997
998 /* 32 bit GP relative reference. */
999 HOWTO (R_MIPS_GPREL32, /* type */
1000 0, /* rightshift */
1001 2, /* size (0 = byte, 1 = short, 2 = long) */
1002 32, /* bitsize */
1003 FALSE, /* pc_relative */
1004 0, /* bitpos */
1005 complain_overflow_dont, /* complain_on_overflow */
1006 mips_elf64_gprel32_reloc, /* special_function */
1007 "R_MIPS_GPREL32", /* name */
1008 FALSE, /* partial_inplace */
1009 0, /* src_mask */
1010 0xffffffff, /* dst_mask */
1011 FALSE), /* pcrel_offset */
1012
1013 EMPTY_HOWTO (13),
1014 EMPTY_HOWTO (14),
1015 EMPTY_HOWTO (15),
1016
1017 /* A 5 bit shift field. */
1018 HOWTO (R_MIPS_SHIFT5, /* type */
1019 0, /* rightshift */
1020 2, /* size (0 = byte, 1 = short, 2 = long) */
1021 5, /* bitsize */
1022 FALSE, /* pc_relative */
1023 6, /* bitpos */
1024 complain_overflow_bitfield, /* complain_on_overflow */
1025 _bfd_mips_elf_generic_reloc, /* special_function */
1026 "R_MIPS_SHIFT5", /* name */
1027 FALSE, /* partial_inplace */
1028 0, /* src_mask */
1029 0x000007c0, /* dst_mask */
1030 FALSE), /* pcrel_offset */
1031
1032 /* A 6 bit shift field. */
1033 HOWTO (R_MIPS_SHIFT6, /* type */
1034 0, /* rightshift */
1035 2, /* size (0 = byte, 1 = short, 2 = long) */
1036 6, /* bitsize */
1037 FALSE, /* pc_relative */
1038 6, /* bitpos */
1039 complain_overflow_bitfield, /* complain_on_overflow */
1040 mips_elf64_shift6_reloc, /* special_function */
1041 "R_MIPS_SHIFT6", /* name */
1042 FALSE, /* partial_inplace */
1043 0, /* src_mask */
1044 0x000007c4, /* dst_mask */
1045 FALSE), /* pcrel_offset */
1046
1047 /* 64 bit relocation. */
1048 HOWTO (R_MIPS_64, /* type */
1049 0, /* rightshift */
1050 4, /* size (0 = byte, 1 = short, 2 = long) */
1051 64, /* bitsize */
1052 FALSE, /* pc_relative */
1053 0, /* bitpos */
1054 complain_overflow_dont, /* complain_on_overflow */
1055 _bfd_mips_elf_generic_reloc, /* special_function */
1056 "R_MIPS_64", /* name */
1057 FALSE, /* partial_inplace */
1058 0, /* src_mask */
1059 MINUS_ONE, /* dst_mask */
1060 FALSE), /* pcrel_offset */
1061
1062 /* Displacement in the global offset table. */
1063 HOWTO (R_MIPS_GOT_DISP, /* type */
1064 0, /* rightshift */
1065 2, /* size (0 = byte, 1 = short, 2 = long) */
1066 16, /* bitsize */
1067 FALSE, /* pc_relative */
1068 0, /* bitpos */
1069 complain_overflow_signed, /* complain_on_overflow */
1070 _bfd_mips_elf_generic_reloc, /* special_function */
1071 "R_MIPS_GOT_DISP", /* name */
1072 FALSE, /* partial_inplace */
1073 0, /* src_mask */
1074 0x0000ffff, /* dst_mask */
1075 FALSE), /* pcrel_offset */
1076
1077 /* Displacement to page pointer in the global offset table. */
1078 HOWTO (R_MIPS_GOT_PAGE, /* type */
1079 0, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_signed, /* complain_on_overflow */
1085 _bfd_mips_elf_generic_reloc, /* special_function */
1086 "R_MIPS_GOT_PAGE", /* name */
1087 FALSE, /* partial_inplace */
1088 0, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 FALSE), /* pcrel_offset */
1091
1092 /* Offset from page pointer in the global offset table. */
1093 HOWTO (R_MIPS_GOT_OFST, /* type */
1094 0, /* rightshift */
1095 2, /* size (0 = byte, 1 = short, 2 = long) */
1096 16, /* bitsize */
1097 FALSE, /* pc_relative */
1098 0, /* bitpos */
1099 complain_overflow_signed, /* complain_on_overflow */
1100 _bfd_mips_elf_generic_reloc, /* special_function */
1101 "R_MIPS_GOT_OFST", /* name */
1102 FALSE, /* partial_inplace */
1103 0, /* src_mask */
1104 0x0000ffff, /* dst_mask */
1105 FALSE), /* pcrel_offset */
1106
1107 /* High 16 bits of displacement in global offset table. */
1108 HOWTO (R_MIPS_GOT_HI16, /* type */
1109 0, /* rightshift */
1110 2, /* size (0 = byte, 1 = short, 2 = long) */
1111 16, /* bitsize */
1112 FALSE, /* pc_relative */
1113 0, /* bitpos */
1114 complain_overflow_dont, /* complain_on_overflow */
1115 _bfd_mips_elf_generic_reloc, /* special_function */
1116 "R_MIPS_GOT_HI16", /* name */
1117 FALSE, /* partial_inplace */
1118 0, /* src_mask */
1119 0x0000ffff, /* dst_mask */
1120 FALSE), /* pcrel_offset */
1121
1122 /* Low 16 bits of displacement in global offset table. */
1123 HOWTO (R_MIPS_GOT_LO16, /* type */
1124 0, /* rightshift */
1125 2, /* size (0 = byte, 1 = short, 2 = long) */
1126 16, /* bitsize */
1127 FALSE, /* pc_relative */
1128 0, /* bitpos */
1129 complain_overflow_dont, /* complain_on_overflow */
1130 _bfd_mips_elf_generic_reloc, /* special_function */
1131 "R_MIPS_GOT_LO16", /* name */
1132 FALSE, /* partial_inplace */
1133 0, /* src_mask */
1134 0x0000ffff, /* dst_mask */
1135 FALSE), /* pcrel_offset */
1136
1137 /* 64 bit subtraction. */
1138 HOWTO (R_MIPS_SUB, /* type */
1139 0, /* rightshift */
1140 4, /* size (0 = byte, 1 = short, 2 = long) */
1141 64, /* bitsize */
1142 FALSE, /* pc_relative */
1143 0, /* bitpos */
1144 complain_overflow_dont, /* complain_on_overflow */
1145 _bfd_mips_elf_generic_reloc, /* special_function */
1146 "R_MIPS_SUB", /* name */
1147 FALSE, /* partial_inplace */
1148 0, /* src_mask */
1149 MINUS_ONE, /* dst_mask */
1150 FALSE), /* pcrel_offset */
1151
1152 /* Insert the addend as an instruction. */
1153 /* FIXME: Not handled correctly. */
1154 HOWTO (R_MIPS_INSERT_A, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 32, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 _bfd_mips_elf_generic_reloc, /* special_function */
1162 "R_MIPS_INSERT_A", /* name */
1163 FALSE, /* partial_inplace */
1164 0, /* src_mask */
1165 0xffffffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167
1168 /* Insert the addend as an instruction, and change all relocations
1169 to refer to the old instruction at the address. */
1170 /* FIXME: Not handled correctly. */
1171 HOWTO (R_MIPS_INSERT_B, /* type */
1172 0, /* rightshift */
1173 2, /* size (0 = byte, 1 = short, 2 = long) */
1174 32, /* bitsize */
1175 FALSE, /* pc_relative */
1176 0, /* bitpos */
1177 complain_overflow_dont, /* complain_on_overflow */
1178 _bfd_mips_elf_generic_reloc, /* special_function */
1179 "R_MIPS_INSERT_B", /* name */
1180 FALSE, /* partial_inplace */
1181 0, /* src_mask */
1182 0xffffffff, /* dst_mask */
1183 FALSE), /* pcrel_offset */
1184
1185 /* Delete a 32 bit instruction. */
1186 /* FIXME: Not handled correctly. */
1187 HOWTO (R_MIPS_DELETE, /* type */
1188 0, /* rightshift */
1189 2, /* size (0 = byte, 1 = short, 2 = long) */
1190 32, /* bitsize */
1191 FALSE, /* pc_relative */
1192 0, /* bitpos */
1193 complain_overflow_dont, /* complain_on_overflow */
1194 _bfd_mips_elf_generic_reloc, /* special_function */
1195 "R_MIPS_DELETE", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0xffffffff, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Get the higher value of a 64 bit addend. */
1202 HOWTO (R_MIPS_HIGHER, /* type */
1203 0, /* rightshift */
1204 2, /* size (0 = byte, 1 = short, 2 = long) */
1205 16, /* bitsize */
1206 FALSE, /* pc_relative */
1207 0, /* bitpos */
1208 complain_overflow_dont, /* complain_on_overflow */
1209 _bfd_mips_elf_generic_reloc, /* special_function */
1210 "R_MIPS_HIGHER", /* name */
1211 FALSE, /* partial_inplace */
1212 0, /* src_mask */
1213 0x0000ffff, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1215
1216 /* Get the highest value of a 64 bit addend. */
1217 HOWTO (R_MIPS_HIGHEST, /* type */
1218 0, /* rightshift */
1219 2, /* size (0 = byte, 1 = short, 2 = long) */
1220 16, /* bitsize */
1221 FALSE, /* pc_relative */
1222 0, /* bitpos */
1223 complain_overflow_dont, /* complain_on_overflow */
1224 _bfd_mips_elf_generic_reloc, /* special_function */
1225 "R_MIPS_HIGHEST", /* name */
1226 FALSE, /* partial_inplace */
1227 0, /* src_mask */
1228 0x0000ffff, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1230
1231 /* High 16 bits of displacement in global offset table. */
1232 HOWTO (R_MIPS_CALL_HI16, /* type */
1233 0, /* rightshift */
1234 2, /* size (0 = byte, 1 = short, 2 = long) */
1235 16, /* bitsize */
1236 FALSE, /* pc_relative */
1237 0, /* bitpos */
1238 complain_overflow_dont, /* complain_on_overflow */
1239 _bfd_mips_elf_generic_reloc, /* special_function */
1240 "R_MIPS_CALL_HI16", /* name */
1241 FALSE, /* partial_inplace */
1242 0, /* src_mask */
1243 0x0000ffff, /* dst_mask */
1244 FALSE), /* pcrel_offset */
1245
1246 /* Low 16 bits of displacement in global offset table. */
1247 HOWTO (R_MIPS_CALL_LO16, /* type */
1248 0, /* rightshift */
1249 2, /* size (0 = byte, 1 = short, 2 = long) */
1250 16, /* bitsize */
1251 FALSE, /* pc_relative */
1252 0, /* bitpos */
1253 complain_overflow_dont, /* complain_on_overflow */
1254 _bfd_mips_elf_generic_reloc, /* special_function */
1255 "R_MIPS_CALL_LO16", /* name */
1256 FALSE, /* partial_inplace */
1257 0, /* src_mask */
1258 0x0000ffff, /* dst_mask */
1259 FALSE), /* pcrel_offset */
1260
1261 /* Section displacement, used by an associated event location section. */
1262 HOWTO (R_MIPS_SCN_DISP, /* type */
1263 0, /* rightshift */
1264 2, /* size (0 = byte, 1 = short, 2 = long) */
1265 32, /* bitsize */
1266 FALSE, /* pc_relative */
1267 0, /* bitpos */
1268 complain_overflow_dont, /* complain_on_overflow */
1269 _bfd_mips_elf_generic_reloc, /* special_function */
1270 "R_MIPS_SCN_DISP", /* name */
1271 FALSE, /* partial_inplace */
1272 0, /* src_mask */
1273 0xffffffff, /* dst_mask */
1274 FALSE), /* pcrel_offset */
1275
1276 HOWTO (R_MIPS_REL16, /* type */
1277 0, /* rightshift */
1278 1, /* size (0 = byte, 1 = short, 2 = long) */
1279 16, /* bitsize */
1280 FALSE, /* pc_relative */
1281 0, /* bitpos */
1282 complain_overflow_signed, /* complain_on_overflow */
1283 _bfd_mips_elf_generic_reloc, /* special_function */
1284 "R_MIPS_REL16", /* name */
1285 FALSE, /* partial_inplace */
1286 0, /* src_mask */
1287 0xffff, /* dst_mask */
1288 FALSE), /* pcrel_offset */
1289
1290 /* These two are obsolete. */
1291 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
1292 EMPTY_HOWTO (R_MIPS_PJUMP),
1293
1294 /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
1295 It must be used for multigot GOT's (and only there). */
1296 HOWTO (R_MIPS_RELGOT, /* type */
1297 0, /* rightshift */
1298 2, /* size (0 = byte, 1 = short, 2 = long) */
1299 32, /* bitsize */
1300 FALSE, /* pc_relative */
1301 0, /* bitpos */
1302 complain_overflow_dont, /* complain_on_overflow */
1303 _bfd_mips_elf_generic_reloc, /* special_function */
1304 "R_MIPS_RELGOT", /* name */
1305 FALSE, /* partial_inplace */
1306 0, /* src_mask */
1307 0xffffffff, /* dst_mask */
1308 FALSE), /* pcrel_offset */
1309
1310 /* Protected jump conversion. This is an optimization hint. No
1311 relocation is required for correctness. */
1312 HOWTO (R_MIPS_JALR, /* type */
1313 0, /* rightshift */
1314 2, /* size (0 = byte, 1 = short, 2 = long) */
1315 32, /* bitsize */
1316 FALSE, /* pc_relative */
1317 0, /* bitpos */
1318 complain_overflow_dont, /* complain_on_overflow */
1319 _bfd_mips_elf_generic_reloc, /* special_function */
1320 "R_MIPS_JALR", /* name */
1321 FALSE, /* partial_inplace */
1322 0, /* src_mask */
1323 0x00000000, /* dst_mask */
1324 FALSE), /* pcrel_offset */
1325
1326 /* TLS relocations. */
1327 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
1328 EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
1329 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
1330 EMPTY_HOWTO (R_MIPS_TLS_DTPREL64),
1331
1332 /* TLS general dynamic variable reference. */
1333 HOWTO (R_MIPS_TLS_GD, /* type */
1334 0, /* rightshift */
1335 2, /* size (0 = byte, 1 = short, 2 = long) */
1336 16, /* bitsize */
1337 FALSE, /* pc_relative */
1338 0, /* bitpos */
1339 complain_overflow_signed, /* complain_on_overflow */
1340 _bfd_mips_elf_generic_reloc, /* special_function */
1341 "R_MIPS_TLS_GD", /* name */
1342 TRUE, /* partial_inplace */
1343 0x0000ffff, /* src_mask */
1344 0x0000ffff, /* dst_mask */
1345 FALSE), /* pcrel_offset */
1346
1347 /* TLS local dynamic variable reference. */
1348 HOWTO (R_MIPS_TLS_LDM, /* type */
1349 0, /* rightshift */
1350 2, /* size (0 = byte, 1 = short, 2 = long) */
1351 16, /* bitsize */
1352 FALSE, /* pc_relative */
1353 0, /* bitpos */
1354 complain_overflow_signed, /* complain_on_overflow */
1355 _bfd_mips_elf_generic_reloc, /* special_function */
1356 "R_MIPS_TLS_LDM", /* name */
1357 TRUE, /* partial_inplace */
1358 0x0000ffff, /* src_mask */
1359 0x0000ffff, /* dst_mask */
1360 FALSE), /* pcrel_offset */
1361
1362 /* TLS local dynamic offset. */
1363 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
1364 0, /* rightshift */
1365 2, /* size (0 = byte, 1 = short, 2 = long) */
1366 16, /* bitsize */
1367 FALSE, /* pc_relative */
1368 0, /* bitpos */
1369 complain_overflow_signed, /* complain_on_overflow */
1370 _bfd_mips_elf_generic_reloc, /* special_function */
1371 "R_MIPS_TLS_DTPREL_HI16", /* name */
1372 TRUE, /* partial_inplace */
1373 0x0000ffff, /* src_mask */
1374 0x0000ffff, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376
1377 /* TLS local dynamic offset. */
1378 HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
1379 0, /* rightshift */
1380 2, /* size (0 = byte, 1 = short, 2 = long) */
1381 16, /* bitsize */
1382 FALSE, /* pc_relative */
1383 0, /* bitpos */
1384 complain_overflow_signed, /* complain_on_overflow */
1385 _bfd_mips_elf_generic_reloc, /* special_function */
1386 "R_MIPS_TLS_DTPREL_LO16", /* name */
1387 TRUE, /* partial_inplace */
1388 0x0000ffff, /* src_mask */
1389 0x0000ffff, /* dst_mask */
1390 FALSE), /* pcrel_offset */
1391
1392 /* TLS thread pointer offset. */
1393 HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
1394 0, /* rightshift */
1395 2, /* size (0 = byte, 1 = short, 2 = long) */
1396 16, /* bitsize */
1397 FALSE, /* pc_relative */
1398 0, /* bitpos */
1399 complain_overflow_signed, /* complain_on_overflow */
1400 _bfd_mips_elf_generic_reloc, /* special_function */
1401 "R_MIPS_TLS_GOTTPREL", /* name */
1402 TRUE, /* partial_inplace */
1403 0x0000ffff, /* src_mask */
1404 0x0000ffff, /* dst_mask */
1405 FALSE), /* pcrel_offset */
1406
1407 EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
1408 EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
1409
1410 /* TLS thread pointer offset. */
1411 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
1412 0, /* rightshift */
1413 2, /* size (0 = byte, 1 = short, 2 = long) */
1414 16, /* bitsize */
1415 FALSE, /* pc_relative */
1416 0, /* bitpos */
1417 complain_overflow_signed, /* complain_on_overflow */
1418 _bfd_mips_elf_generic_reloc, /* special_function */
1419 "R_MIPS_TLS_TPREL_HI16", /* name */
1420 TRUE, /* partial_inplace */
1421 0x0000ffff, /* src_mask */
1422 0x0000ffff, /* dst_mask */
1423 FALSE), /* pcrel_offset */
1424
1425 /* TLS thread pointer offset. */
1426 HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
1427 0, /* rightshift */
1428 2, /* size (0 = byte, 1 = short, 2 = long) */
1429 16, /* bitsize */
1430 FALSE, /* pc_relative */
1431 0, /* bitpos */
1432 complain_overflow_signed, /* complain_on_overflow */
1433 _bfd_mips_elf_generic_reloc, /* special_function */
1434 "R_MIPS_TLS_TPREL_LO16", /* name */
1435 TRUE, /* partial_inplace */
1436 0x0000ffff, /* src_mask */
1437 0x0000ffff, /* dst_mask */
1438 FALSE), /* pcrel_offset */
1439
1440 /* 32 bit relocation with no addend. */
1441 HOWTO (R_MIPS_GLOB_DAT, /* type */
1442 0, /* rightshift */
1443 2, /* size (0 = byte, 1 = short, 2 = long) */
1444 32, /* bitsize */
1445 FALSE, /* pc_relative */
1446 0, /* bitpos */
1447 complain_overflow_dont, /* complain_on_overflow */
1448 _bfd_mips_elf_generic_reloc, /* special_function */
1449 "R_MIPS_GLOB_DAT", /* name */
1450 FALSE, /* partial_inplace */
1451 0x0, /* src_mask */
1452 0xffffffff, /* dst_mask */
1453 FALSE), /* pcrel_offset */
1454 };
1455
1456 static reloc_howto_type mips16_elf64_howto_table_rel[] =
1457 {
1458 /* The reloc used for the mips16 jump instruction. */
1459 HOWTO (R_MIPS16_26, /* type */
1460 2, /* rightshift */
1461 2, /* size (0 = byte, 1 = short, 2 = long) */
1462 26, /* bitsize */
1463 FALSE, /* pc_relative */
1464 0, /* bitpos */
1465 complain_overflow_dont, /* complain_on_overflow */
1466 /* This needs complex overflow
1467 detection, because the upper four
1468 bits must match the PC. */
1469 _bfd_mips_elf_generic_reloc, /* special_function */
1470 "R_MIPS16_26", /* name */
1471 TRUE, /* partial_inplace */
1472 0x3ffffff, /* src_mask */
1473 0x3ffffff, /* dst_mask */
1474 FALSE), /* pcrel_offset */
1475
1476 /* The reloc used for the mips16 gprel instruction. */
1477 HOWTO (R_MIPS16_GPREL, /* type */
1478 0, /* rightshift */
1479 2, /* size (0 = byte, 1 = short, 2 = long) */
1480 16, /* bitsize */
1481 FALSE, /* pc_relative */
1482 0, /* bitpos */
1483 complain_overflow_signed, /* complain_on_overflow */
1484 mips16_gprel_reloc, /* special_function */
1485 "R_MIPS16_GPREL", /* name */
1486 TRUE, /* partial_inplace */
1487 0x0000ffff, /* src_mask */
1488 0x0000ffff, /* dst_mask */
1489 FALSE), /* pcrel_offset */
1490
1491 /* A placeholder for MIPS16 reference to global offset table. */
1492 EMPTY_HOWTO (R_MIPS16_GOT16),
1493
1494 /* A placeholder for MIPS16 16 bit call through global offset table. */
1495 EMPTY_HOWTO (R_MIPS16_CALL16),
1496
1497 /* MIPS16 high 16 bits of symbol value. */
1498 HOWTO (R_MIPS16_HI16, /* type */
1499 16, /* rightshift */
1500 2, /* size (0 = byte, 1 = short, 2 = long) */
1501 16, /* bitsize */
1502 FALSE, /* pc_relative */
1503 0, /* bitpos */
1504 complain_overflow_dont, /* complain_on_overflow */
1505 _bfd_mips_elf_hi16_reloc, /* special_function */
1506 "R_MIPS16_HI16", /* name */
1507 TRUE, /* partial_inplace */
1508 0x0000ffff, /* src_mask */
1509 0x0000ffff, /* dst_mask */
1510 FALSE), /* pcrel_offset */
1511
1512 /* MIPS16 low 16 bits of symbol value. */
1513 HOWTO (R_MIPS16_LO16, /* type */
1514 0, /* rightshift */
1515 2, /* size (0 = byte, 1 = short, 2 = long) */
1516 16, /* bitsize */
1517 FALSE, /* pc_relative */
1518 0, /* bitpos */
1519 complain_overflow_dont, /* complain_on_overflow */
1520 _bfd_mips_elf_lo16_reloc, /* special_function */
1521 "R_MIPS16_LO16", /* name */
1522 TRUE, /* partial_inplace */
1523 0x0000ffff, /* src_mask */
1524 0x0000ffff, /* dst_mask */
1525 FALSE), /* pcrel_offset */
1526 };
1527
1528 static reloc_howto_type mips16_elf64_howto_table_rela[] =
1529 {
1530 /* The reloc used for the mips16 jump instruction. */
1531 HOWTO (R_MIPS16_26, /* type */
1532 2, /* rightshift */
1533 2, /* size (0 = byte, 1 = short, 2 = long) */
1534 26, /* bitsize */
1535 FALSE, /* pc_relative */
1536 0, /* bitpos */
1537 complain_overflow_dont, /* complain_on_overflow */
1538 /* This needs complex overflow
1539 detection, because the upper four
1540 bits must match the PC. */
1541 _bfd_mips_elf_generic_reloc, /* special_function */
1542 "R_MIPS16_26", /* name */
1543 FALSE, /* partial_inplace */
1544 0x3ffffff, /* src_mask */
1545 0x3ffffff, /* dst_mask */
1546 FALSE), /* pcrel_offset */
1547
1548 /* The reloc used for the mips16 gprel instruction. */
1549 HOWTO (R_MIPS16_GPREL, /* type */
1550 0, /* rightshift */
1551 2, /* size (0 = byte, 1 = short, 2 = long) */
1552 16, /* bitsize */
1553 FALSE, /* pc_relative */
1554 0, /* bitpos */
1555 complain_overflow_signed, /* complain_on_overflow */
1556 mips16_gprel_reloc, /* special_function */
1557 "R_MIPS16_GPREL", /* name */
1558 FALSE, /* partial_inplace */
1559 0x0000ffff, /* src_mask */
1560 0x0000ffff, /* dst_mask */
1561 FALSE), /* pcrel_offset */
1562
1563 /* A placeholder for MIPS16 reference to global offset table. */
1564 EMPTY_HOWTO (R_MIPS16_GOT16),
1565
1566 /* A placeholder for MIPS16 16 bit call through global offset table. */
1567 EMPTY_HOWTO (R_MIPS16_CALL16),
1568
1569 /* MIPS16 high 16 bits of symbol value. */
1570 HOWTO (R_MIPS16_HI16, /* type */
1571 16, /* rightshift */
1572 2, /* size (0 = byte, 1 = short, 2 = long) */
1573 16, /* bitsize */
1574 FALSE, /* pc_relative */
1575 0, /* bitpos */
1576 complain_overflow_dont, /* complain_on_overflow */
1577 _bfd_mips_elf_hi16_reloc, /* special_function */
1578 "R_MIPS16_HI16", /* name */
1579 FALSE, /* partial_inplace */
1580 0x0000ffff, /* src_mask */
1581 0x0000ffff, /* dst_mask */
1582 FALSE), /* pcrel_offset */
1583
1584 /* MIPS16 low 16 bits of symbol value. */
1585 HOWTO (R_MIPS16_LO16, /* type */
1586 0, /* rightshift */
1587 2, /* size (0 = byte, 1 = short, 2 = long) */
1588 16, /* bitsize */
1589 FALSE, /* pc_relative */
1590 0, /* bitpos */
1591 complain_overflow_dont, /* complain_on_overflow */
1592 _bfd_mips_elf_lo16_reloc, /* special_function */
1593 "R_MIPS16_LO16", /* name */
1594 FALSE, /* partial_inplace */
1595 0x0000ffff, /* src_mask */
1596 0x0000ffff, /* dst_mask */
1597 FALSE), /* pcrel_offset */
1598 };
1599
1600 /* GNU extension to record C++ vtable hierarchy */
1601 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1602 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1603 0, /* rightshift */
1604 2, /* size (0 = byte, 1 = short, 2 = long) */
1605 0, /* bitsize */
1606 FALSE, /* pc_relative */
1607 0, /* bitpos */
1608 complain_overflow_dont, /* complain_on_overflow */
1609 NULL, /* special_function */
1610 "R_MIPS_GNU_VTINHERIT", /* name */
1611 FALSE, /* partial_inplace */
1612 0, /* src_mask */
1613 0, /* dst_mask */
1614 FALSE); /* pcrel_offset */
1615
1616 /* GNU extension to record C++ vtable member usage */
1617 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1618 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1619 0, /* rightshift */
1620 2, /* size (0 = byte, 1 = short, 2 = long) */
1621 0, /* bitsize */
1622 FALSE, /* pc_relative */
1623 0, /* bitpos */
1624 complain_overflow_dont, /* complain_on_overflow */
1625 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1626 "R_MIPS_GNU_VTENTRY", /* name */
1627 FALSE, /* partial_inplace */
1628 0, /* src_mask */
1629 0, /* dst_mask */
1630 FALSE); /* pcrel_offset */
1631 \f
1632 /* 16 bit offset for pc-relative branches. */
1633 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1634 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1635 2, /* rightshift */
1636 2, /* size (0 = byte, 1 = short, 2 = long) */
1637 16, /* bitsize */
1638 TRUE, /* pc_relative */
1639 0, /* bitpos */
1640 complain_overflow_signed, /* complain_on_overflow */
1641 _bfd_mips_elf_generic_reloc, /* special_function */
1642 "R_MIPS_GNU_REL16_S2", /* name */
1643 TRUE, /* partial_inplace */
1644 0x0000ffff, /* src_mask */
1645 0x0000ffff, /* dst_mask */
1646 TRUE); /* pcrel_offset */
1647
1648 /* 16 bit offset for pc-relative branches. */
1649 static reloc_howto_type elf_mips_gnu_rela16_s2 =
1650 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1651 2, /* rightshift */
1652 2, /* size (0 = byte, 1 = short, 2 = long) */
1653 16, /* bitsize */
1654 TRUE, /* pc_relative */
1655 0, /* bitpos */
1656 complain_overflow_signed, /* complain_on_overflow */
1657 _bfd_mips_elf_generic_reloc, /* special_function */
1658 "R_MIPS_GNU_REL16_S2", /* name */
1659 FALSE, /* partial_inplace */
1660 0, /* src_mask */
1661 0x0000ffff, /* dst_mask */
1662 TRUE); /* pcrel_offset */
1663 \f
1664 /* Swap in a MIPS 64-bit Rel reloc. */
1665
1666 static void
1667 mips_elf64_swap_reloc_in (bfd *abfd, const Elf64_Mips_External_Rel *src,
1668 Elf64_Mips_Internal_Rela *dst)
1669 {
1670 dst->r_offset = H_GET_64 (abfd, src->r_offset);
1671 dst->r_sym = H_GET_32 (abfd, src->r_sym);
1672 dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
1673 dst->r_type3 = H_GET_8 (abfd, src->r_type3);
1674 dst->r_type2 = H_GET_8 (abfd, src->r_type2);
1675 dst->r_type = H_GET_8 (abfd, src->r_type);
1676 dst->r_addend = 0;
1677 }
1678
1679 /* Swap in a MIPS 64-bit Rela reloc. */
1680
1681 static void
1682 mips_elf64_swap_reloca_in (bfd *abfd, const Elf64_Mips_External_Rela *src,
1683 Elf64_Mips_Internal_Rela *dst)
1684 {
1685 dst->r_offset = H_GET_64 (abfd, src->r_offset);
1686 dst->r_sym = H_GET_32 (abfd, src->r_sym);
1687 dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
1688 dst->r_type3 = H_GET_8 (abfd, src->r_type3);
1689 dst->r_type2 = H_GET_8 (abfd, src->r_type2);
1690 dst->r_type = H_GET_8 (abfd, src->r_type);
1691 dst->r_addend = H_GET_S64 (abfd, src->r_addend);
1692 }
1693
1694 /* Swap out a MIPS 64-bit Rel reloc. */
1695
1696 static void
1697 mips_elf64_swap_reloc_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src,
1698 Elf64_Mips_External_Rel *dst)
1699 {
1700 H_PUT_64 (abfd, src->r_offset, dst->r_offset);
1701 H_PUT_32 (abfd, src->r_sym, dst->r_sym);
1702 H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
1703 H_PUT_8 (abfd, src->r_type3, dst->r_type3);
1704 H_PUT_8 (abfd, src->r_type2, dst->r_type2);
1705 H_PUT_8 (abfd, src->r_type, dst->r_type);
1706 }
1707
1708 /* Swap out a MIPS 64-bit Rela reloc. */
1709
1710 static void
1711 mips_elf64_swap_reloca_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src,
1712 Elf64_Mips_External_Rela *dst)
1713 {
1714 H_PUT_64 (abfd, src->r_offset, dst->r_offset);
1715 H_PUT_32 (abfd, src->r_sym, dst->r_sym);
1716 H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
1717 H_PUT_8 (abfd, src->r_type3, dst->r_type3);
1718 H_PUT_8 (abfd, src->r_type2, dst->r_type2);
1719 H_PUT_8 (abfd, src->r_type, dst->r_type);
1720 H_PUT_S64 (abfd, src->r_addend, dst->r_addend);
1721 }
1722
1723 /* Swap in a MIPS 64-bit Rel reloc. */
1724
1725 static void
1726 mips_elf64_be_swap_reloc_in (bfd *abfd, const bfd_byte *src,
1727 Elf_Internal_Rela *dst)
1728 {
1729 Elf64_Mips_Internal_Rela mirel;
1730
1731 mips_elf64_swap_reloc_in (abfd,
1732 (const Elf64_Mips_External_Rel *) src,
1733 &mirel);
1734
1735 dst[0].r_offset = mirel.r_offset;
1736 dst[0].r_info = ELF64_R_INFO (mirel.r_sym, mirel.r_type);
1737 dst[0].r_addend = 0;
1738 dst[1].r_offset = mirel.r_offset;
1739 dst[1].r_info = ELF64_R_INFO (mirel.r_ssym, mirel.r_type2);
1740 dst[1].r_addend = 0;
1741 dst[2].r_offset = mirel.r_offset;
1742 dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirel.r_type3);
1743 dst[2].r_addend = 0;
1744 }
1745
1746 /* Swap in a MIPS 64-bit Rela reloc. */
1747
1748 static void
1749 mips_elf64_be_swap_reloca_in (bfd *abfd, const bfd_byte *src,
1750 Elf_Internal_Rela *dst)
1751 {
1752 Elf64_Mips_Internal_Rela mirela;
1753
1754 mips_elf64_swap_reloca_in (abfd,
1755 (const Elf64_Mips_External_Rela *) src,
1756 &mirela);
1757
1758 dst[0].r_offset = mirela.r_offset;
1759 dst[0].r_info = ELF64_R_INFO (mirela.r_sym, mirela.r_type);
1760 dst[0].r_addend = mirela.r_addend;
1761 dst[1].r_offset = mirela.r_offset;
1762 dst[1].r_info = ELF64_R_INFO (mirela.r_ssym, mirela.r_type2);
1763 dst[1].r_addend = 0;
1764 dst[2].r_offset = mirela.r_offset;
1765 dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirela.r_type3);
1766 dst[2].r_addend = 0;
1767 }
1768
1769 /* Swap out a MIPS 64-bit Rel reloc. */
1770
1771 static void
1772 mips_elf64_be_swap_reloc_out (bfd *abfd, const Elf_Internal_Rela *src,
1773 bfd_byte *dst)
1774 {
1775 Elf64_Mips_Internal_Rela mirel;
1776
1777 mirel.r_offset = src[0].r_offset;
1778 BFD_ASSERT(src[0].r_offset == src[1].r_offset);
1779
1780 mirel.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
1781 mirel.r_sym = ELF64_R_SYM (src[0].r_info);
1782 mirel.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info);
1783 mirel.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
1784 mirel.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info);
1785
1786 mips_elf64_swap_reloc_out (abfd, &mirel,
1787 (Elf64_Mips_External_Rel *) dst);
1788 }
1789
1790 /* Swap out a MIPS 64-bit Rela reloc. */
1791
1792 static void
1793 mips_elf64_be_swap_reloca_out (bfd *abfd, const Elf_Internal_Rela *src,
1794 bfd_byte *dst)
1795 {
1796 Elf64_Mips_Internal_Rela mirela;
1797
1798 mirela.r_offset = src[0].r_offset;
1799 BFD_ASSERT(src[0].r_offset == src[1].r_offset);
1800 BFD_ASSERT(src[0].r_offset == src[2].r_offset);
1801
1802 mirela.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
1803 mirela.r_sym = ELF64_R_SYM (src[0].r_info);
1804 mirela.r_addend = src[0].r_addend;
1805 BFD_ASSERT(src[1].r_addend == 0);
1806 BFD_ASSERT(src[2].r_addend == 0);
1807
1808 mirela.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info);
1809 mirela.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
1810 mirela.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info);
1811
1812 mips_elf64_swap_reloca_out (abfd, &mirela,
1813 (Elf64_Mips_External_Rela *) dst);
1814 }
1815 \f
1816 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1817 dangerous relocation. */
1818
1819 static bfd_boolean
1820 mips_elf64_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1821 {
1822 unsigned int count;
1823 asymbol **sym;
1824 unsigned int i;
1825
1826 /* If we've already figured out what GP will be, just return it. */
1827 *pgp = _bfd_get_gp_value (output_bfd);
1828 if (*pgp)
1829 return TRUE;
1830
1831 count = bfd_get_symcount (output_bfd);
1832 sym = bfd_get_outsymbols (output_bfd);
1833
1834 /* The linker script will have created a symbol named `_gp' with the
1835 appropriate value. */
1836 if (sym == NULL)
1837 i = count;
1838 else
1839 {
1840 for (i = 0; i < count; i++, sym++)
1841 {
1842 register const char *name;
1843
1844 name = bfd_asymbol_name (*sym);
1845 if (*name == '_' && strcmp (name, "_gp") == 0)
1846 {
1847 *pgp = bfd_asymbol_value (*sym);
1848 _bfd_set_gp_value (output_bfd, *pgp);
1849 break;
1850 }
1851 }
1852 }
1853
1854 if (i >= count)
1855 {
1856 /* Only get the error once. */
1857 *pgp = 4;
1858 _bfd_set_gp_value (output_bfd, *pgp);
1859 return FALSE;
1860 }
1861
1862 return TRUE;
1863 }
1864
1865 /* We have to figure out the gp value, so that we can adjust the
1866 symbol value correctly. We look up the symbol _gp in the output
1867 BFD. If we can't find it, we're stuck. We cache it in the ELF
1868 target data. We don't need to adjust the symbol value for an
1869 external symbol if we are producing relocatable output. */
1870
1871 static bfd_reloc_status_type
1872 mips_elf64_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1873 char **error_message, bfd_vma *pgp)
1874 {
1875 if (bfd_is_und_section (symbol->section)
1876 && ! relocatable)
1877 {
1878 *pgp = 0;
1879 return bfd_reloc_undefined;
1880 }
1881
1882 *pgp = _bfd_get_gp_value (output_bfd);
1883 if (*pgp == 0
1884 && (! relocatable
1885 || (symbol->flags & BSF_SECTION_SYM) != 0))
1886 {
1887 if (relocatable)
1888 {
1889 /* Make up a value. */
1890 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
1891 _bfd_set_gp_value (output_bfd, *pgp);
1892 }
1893 else if (!mips_elf64_assign_gp (output_bfd, pgp))
1894 {
1895 *error_message =
1896 (char *) _("GP relative relocation when _gp not defined");
1897 return bfd_reloc_dangerous;
1898 }
1899 }
1900
1901 return bfd_reloc_ok;
1902 }
1903
1904 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1905 become the offset from the gp register. */
1906
1907 static bfd_reloc_status_type
1908 mips_elf64_gprel16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1909 void *data, asection *input_section, bfd *output_bfd,
1910 char **error_message)
1911 {
1912 bfd_boolean relocatable;
1913 bfd_reloc_status_type ret;
1914 bfd_vma gp;
1915
1916 /* If we're relocating, and this is an external symbol, we don't want
1917 to change anything. */
1918 if (output_bfd != NULL
1919 && (symbol->flags & BSF_SECTION_SYM) == 0
1920 && (symbol->flags & BSF_LOCAL) != 0)
1921 {
1922 reloc_entry->address += input_section->output_offset;
1923 return bfd_reloc_ok;
1924 }
1925
1926 if (output_bfd != NULL)
1927 relocatable = TRUE;
1928 else
1929 {
1930 relocatable = FALSE;
1931 output_bfd = symbol->section->output_section->owner;
1932 }
1933
1934 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
1935 &gp);
1936 if (ret != bfd_reloc_ok)
1937 return ret;
1938
1939 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1940 input_section, relocatable,
1941 data, gp);
1942 }
1943
1944 /* Do a R_MIPS_LITERAL relocation. */
1945
1946 static bfd_reloc_status_type
1947 mips_elf64_literal_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1948 void *data, asection *input_section, bfd *output_bfd,
1949 char **error_message)
1950 {
1951 bfd_boolean relocatable;
1952 bfd_reloc_status_type ret;
1953 bfd_vma gp;
1954
1955 /* R_MIPS_LITERAL relocations are defined for local symbols only. */
1956 if (output_bfd != NULL
1957 && (symbol->flags & BSF_SECTION_SYM) == 0
1958 && (symbol->flags & BSF_LOCAL) != 0)
1959 {
1960 *error_message = (char *)
1961 _("literal relocation occurs for an external symbol");
1962 return bfd_reloc_outofrange;
1963 }
1964
1965 /* FIXME: The entries in the .lit8 and .lit4 sections should be merged. */
1966 if (output_bfd != NULL)
1967 relocatable = TRUE;
1968 else
1969 {
1970 relocatable = FALSE;
1971 output_bfd = symbol->section->output_section->owner;
1972 }
1973
1974 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
1975 &gp);
1976 if (ret != bfd_reloc_ok)
1977 return ret;
1978
1979 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1980 input_section, relocatable,
1981 data, gp);
1982 }
1983
1984 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
1985 become the offset from the gp register. */
1986
1987 static bfd_reloc_status_type
1988 mips_elf64_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1989 void *data, asection *input_section, bfd *output_bfd,
1990 char **error_message)
1991 {
1992 bfd_boolean relocatable;
1993 bfd_reloc_status_type ret;
1994 bfd_vma gp;
1995 bfd_vma relocation;
1996 bfd_vma val;
1997
1998 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1999 if (output_bfd != NULL
2000 && (symbol->flags & BSF_SECTION_SYM) == 0
2001 && (symbol->flags & BSF_LOCAL) != 0)
2002 {
2003 *error_message = (char *)
2004 _("32bits gp relative relocation occurs for an external symbol");
2005 return bfd_reloc_outofrange;
2006 }
2007
2008 if (output_bfd != NULL)
2009 relocatable = TRUE;
2010 else
2011 {
2012 relocatable = FALSE;
2013 output_bfd = symbol->section->output_section->owner;
2014 }
2015
2016 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable,
2017 error_message, &gp);
2018 if (ret != bfd_reloc_ok)
2019 return ret;
2020
2021 if (bfd_is_com_section (symbol->section))
2022 relocation = 0;
2023 else
2024 relocation = symbol->value;
2025
2026 relocation += symbol->section->output_section->vma;
2027 relocation += symbol->section->output_offset;
2028
2029 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2030 return bfd_reloc_outofrange;
2031
2032 /* Set val to the offset into the section or symbol. */
2033 val = reloc_entry->addend;
2034
2035 if (reloc_entry->howto->partial_inplace)
2036 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2037
2038 /* Adjust val for the final section location and GP value. If we
2039 are producing relocatable output, we don't want to do this for
2040 an external symbol. */
2041 if (! relocatable
2042 || (symbol->flags & BSF_SECTION_SYM) != 0)
2043 val += relocation - gp;
2044
2045 if (reloc_entry->howto->partial_inplace)
2046 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
2047 else
2048 reloc_entry->addend = val;
2049
2050 if (relocatable)
2051 reloc_entry->address += input_section->output_offset;
2052
2053 return bfd_reloc_ok;
2054 }
2055
2056 /* Do a R_MIPS_SHIFT6 relocation. The MSB of the shift is stored at bit 2,
2057 the rest is at bits 6-10. The bitpos already got right by the howto. */
2058
2059 static bfd_reloc_status_type
2060 mips_elf64_shift6_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2061 void *data, asection *input_section, bfd *output_bfd,
2062 char **error_message)
2063 {
2064 if (reloc_entry->howto->partial_inplace)
2065 {
2066 reloc_entry->addend = ((reloc_entry->addend & 0x00007c0)
2067 | (reloc_entry->addend & 0x00000800) >> 9);
2068 }
2069
2070 return _bfd_mips_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2071 input_section, output_bfd,
2072 error_message);
2073 }
2074
2075 /* Handle a mips16 GP relative reloc. */
2076
2077 static bfd_reloc_status_type
2078 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2079 void *data, asection *input_section, bfd *output_bfd,
2080 char **error_message)
2081 {
2082 bfd_boolean relocatable;
2083 bfd_reloc_status_type ret;
2084 bfd_byte *location;
2085 bfd_vma gp;
2086
2087 /* If we're relocating, and this is an external symbol, we don't want
2088 to change anything. */
2089 if (output_bfd != NULL
2090 && (symbol->flags & BSF_SECTION_SYM) == 0
2091 && (symbol->flags & BSF_LOCAL) != 0)
2092 {
2093 reloc_entry->address += input_section->output_offset;
2094 return bfd_reloc_ok;
2095 }
2096
2097 if (output_bfd != NULL)
2098 relocatable = TRUE;
2099 else
2100 {
2101 relocatable = FALSE;
2102 output_bfd = symbol->section->output_section->owner;
2103 }
2104
2105 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
2106 &gp);
2107 if (ret != bfd_reloc_ok)
2108 return ret;
2109
2110 location = (bfd_byte *) data + reloc_entry->address;
2111 _bfd_mips16_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
2112 location);
2113 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
2114 input_section, relocatable,
2115 data, gp);
2116 _bfd_mips16_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
2117 location);
2118
2119 return ret;
2120 }
2121 \f
2122 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
2123
2124 struct elf_reloc_map {
2125 bfd_reloc_code_real_type bfd_val;
2126 enum elf_mips_reloc_type elf_val;
2127 };
2128
2129 static const struct elf_reloc_map mips_reloc_map[] =
2130 {
2131 { BFD_RELOC_NONE, R_MIPS_NONE },
2132 { BFD_RELOC_16, R_MIPS_16 },
2133 { BFD_RELOC_32, R_MIPS_32 },
2134 /* There is no BFD reloc for R_MIPS_REL32. */
2135 { BFD_RELOC_64, R_MIPS_64 },
2136 { BFD_RELOC_CTOR, R_MIPS_64 },
2137 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
2138 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
2139 { BFD_RELOC_LO16, R_MIPS_LO16 },
2140 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
2141 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
2142 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
2143 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
2144 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
2145 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
2146 { BFD_RELOC_MIPS_SHIFT5, R_MIPS_SHIFT5 },
2147 { BFD_RELOC_MIPS_SHIFT6, R_MIPS_SHIFT6 },
2148 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
2149 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
2150 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
2151 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
2152 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
2153 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
2154 { BFD_RELOC_MIPS_INSERT_A, R_MIPS_INSERT_A },
2155 { BFD_RELOC_MIPS_INSERT_B, R_MIPS_INSERT_B },
2156 { BFD_RELOC_MIPS_DELETE, R_MIPS_DELETE },
2157 { BFD_RELOC_MIPS_HIGHEST, R_MIPS_HIGHEST },
2158 { BFD_RELOC_MIPS_HIGHER, R_MIPS_HIGHER },
2159 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
2160 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
2161 { BFD_RELOC_MIPS_SCN_DISP, R_MIPS_SCN_DISP },
2162 { BFD_RELOC_MIPS_REL16, R_MIPS_REL16 },
2163 /* Use of R_MIPS_ADD_IMMEDIATE and R_MIPS_PJUMP is deprecated. */
2164 { BFD_RELOC_MIPS_RELGOT, R_MIPS_RELGOT },
2165 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
2166 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
2167 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
2168 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
2169 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
2170 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
2171 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
2172 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
2173 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
2174 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
2175 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
2176 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
2177 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
2178 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
2179 };
2180
2181 static const struct elf_reloc_map mips16_reloc_map[] =
2182 {
2183 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
2184 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
2185 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
2186 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
2187 };
2188
2189 /* Given a BFD reloc type, return a howto structure. */
2190
2191 static reloc_howto_type *
2192 bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2193 bfd_reloc_code_real_type code)
2194 {
2195 unsigned int i;
2196 /* FIXME: We default to RELA here instead of choosing the right
2197 relocation variant. */
2198 reloc_howto_type *howto_table = mips_elf64_howto_table_rela;
2199 reloc_howto_type *howto16_table = mips16_elf64_howto_table_rela;
2200
2201 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
2202 i++)
2203 {
2204 if (mips_reloc_map[i].bfd_val == code)
2205 return &howto_table[(int) mips_reloc_map[i].elf_val];
2206 }
2207
2208 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
2209 i++)
2210 {
2211 if (mips16_reloc_map[i].bfd_val == code)
2212 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
2213 }
2214
2215 switch (code)
2216 {
2217 case BFD_RELOC_VTABLE_INHERIT:
2218 return &elf_mips_gnu_vtinherit_howto;
2219 case BFD_RELOC_VTABLE_ENTRY:
2220 return &elf_mips_gnu_vtentry_howto;
2221 default:
2222 bfd_set_error (bfd_error_bad_value);
2223 return NULL;
2224 }
2225 }
2226
2227 static reloc_howto_type *
2228 bfd_elf64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2229 const char *r_name)
2230 {
2231 unsigned int i;
2232
2233 for (i = 0;
2234 i < (sizeof (mips_elf64_howto_table_rela)
2235 / sizeof (mips_elf64_howto_table_rela[0])); i++)
2236 if (mips_elf64_howto_table_rela[i].name != NULL
2237 && strcasecmp (mips_elf64_howto_table_rela[i].name, r_name) == 0)
2238 return &mips_elf64_howto_table_rela[i];
2239
2240 for (i = 0;
2241 i < (sizeof (mips16_elf64_howto_table_rela)
2242 / sizeof (mips16_elf64_howto_table_rela[0]));
2243 i++)
2244 if (mips16_elf64_howto_table_rela[i].name != NULL
2245 && strcasecmp (mips16_elf64_howto_table_rela[i].name, r_name) == 0)
2246 return &mips16_elf64_howto_table_rela[i];
2247
2248 if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
2249 return &elf_mips_gnu_vtinherit_howto;
2250 if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
2251 return &elf_mips_gnu_vtentry_howto;
2252 if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
2253 return &elf_mips_gnu_rel16_s2;
2254 if (strcasecmp (elf_mips_gnu_rela16_s2.name, r_name) == 0)
2255 return &elf_mips_gnu_rela16_s2;
2256
2257 return NULL;
2258 }
2259
2260 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2261
2262 static reloc_howto_type *
2263 mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p)
2264 {
2265 switch (r_type)
2266 {
2267 case R_MIPS_GNU_VTINHERIT:
2268 return &elf_mips_gnu_vtinherit_howto;
2269 case R_MIPS_GNU_VTENTRY:
2270 return &elf_mips_gnu_vtentry_howto;
2271 case R_MIPS_GNU_REL16_S2:
2272 if (rela_p)
2273 return &elf_mips_gnu_rela16_s2;
2274 else
2275 return &elf_mips_gnu_rel16_s2;
2276 default:
2277 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
2278 {
2279 if (rela_p)
2280 return &mips16_elf64_howto_table_rela[r_type - R_MIPS16_min];
2281 else
2282 return &mips16_elf64_howto_table_rel[r_type - R_MIPS16_min];
2283 }
2284 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2285 if (rela_p)
2286 return &mips_elf64_howto_table_rela[r_type];
2287 else
2288 return &mips_elf64_howto_table_rel[r_type];
2289 break;
2290 }
2291 }
2292
2293 /* Prevent relocation handling by bfd for MIPS ELF64. */
2294
2295 static void
2296 mips_elf64_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2297 arelent *cache_ptr ATTRIBUTE_UNUSED,
2298 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
2299 {
2300 BFD_ASSERT (0);
2301 }
2302
2303 static void
2304 mips_elf64_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2305 arelent *cache_ptr ATTRIBUTE_UNUSED,
2306 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
2307 {
2308 BFD_ASSERT (0);
2309 }
2310
2311 /* Since each entry in an SHT_REL or SHT_RELA section can represent up
2312 to three relocs, we must tell the user to allocate more space. */
2313
2314 static long
2315 mips_elf64_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
2316 {
2317 return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
2318 }
2319
2320 static long
2321 mips_elf64_get_dynamic_reloc_upper_bound (bfd *abfd)
2322 {
2323 return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 3;
2324 }
2325
2326 /* We must also copy more relocations than the corresponding functions
2327 in elf.c would, so the two following functions are slightly
2328 modified from elf.c, that multiply the external relocation count by
2329 3 to obtain the internal relocation count. */
2330
2331 static long
2332 mips_elf64_canonicalize_reloc (bfd *abfd, sec_ptr section,
2333 arelent **relptr, asymbol **symbols)
2334 {
2335 arelent *tblptr;
2336 unsigned int i;
2337 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2338
2339 if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE))
2340 return -1;
2341
2342 tblptr = section->relocation;
2343 for (i = 0; i < section->reloc_count * 3; i++)
2344 *relptr++ = tblptr++;
2345
2346 *relptr = NULL;
2347
2348 return section->reloc_count * 3;
2349 }
2350
2351 static long
2352 mips_elf64_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage,
2353 asymbol **syms)
2354 {
2355 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2356 asection *s;
2357 long ret;
2358
2359 if (elf_dynsymtab (abfd) == 0)
2360 {
2361 bfd_set_error (bfd_error_invalid_operation);
2362 return -1;
2363 }
2364
2365 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2366 ret = 0;
2367 for (s = abfd->sections; s != NULL; s = s->next)
2368 {
2369 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
2370 && (elf_section_data (s)->this_hdr.sh_type == SHT_REL
2371 || elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
2372 {
2373 arelent *p;
2374 long count, i;
2375
2376 if (! (*slurp_relocs) (abfd, s, syms, TRUE))
2377 return -1;
2378 count = s->size / elf_section_data (s)->this_hdr.sh_entsize * 3;
2379 p = s->relocation;
2380 for (i = 0; i < count; i++)
2381 *storage++ = p++;
2382 ret += count;
2383 }
2384 }
2385
2386 *storage = NULL;
2387
2388 return ret;
2389 }
2390
2391 /* Read the relocations from one reloc section. This is mostly copied
2392 from elfcode.h, except for the changes to expand one external
2393 relocation to 3 internal ones. We must unfortunately set
2394 reloc_count to the number of external relocations, because a lot of
2395 generic code seems to depend on this. */
2396
2397 static bfd_boolean
2398 mips_elf64_slurp_one_reloc_table (bfd *abfd, asection *asect,
2399 Elf_Internal_Shdr *rel_hdr,
2400 bfd_size_type reloc_count,
2401 arelent *relents, asymbol **symbols,
2402 bfd_boolean dynamic)
2403 {
2404 void *allocated;
2405 bfd_byte *native_relocs;
2406 arelent *relent;
2407 bfd_vma i;
2408 int entsize;
2409 bfd_boolean rela_p;
2410
2411 allocated = bfd_malloc (rel_hdr->sh_size);
2412 if (allocated == NULL)
2413 return FALSE;
2414
2415 if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
2416 || (bfd_bread (allocated, rel_hdr->sh_size, abfd)
2417 != rel_hdr->sh_size))
2418 goto error_return;
2419
2420 native_relocs = allocated;
2421
2422 entsize = rel_hdr->sh_entsize;
2423 BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel)
2424 || entsize == sizeof (Elf64_Mips_External_Rela));
2425
2426 if (entsize == sizeof (Elf64_Mips_External_Rel))
2427 rela_p = FALSE;
2428 else
2429 rela_p = TRUE;
2430
2431 for (i = 0, relent = relents;
2432 i < reloc_count;
2433 i++, native_relocs += entsize)
2434 {
2435 Elf64_Mips_Internal_Rela rela;
2436 bfd_boolean used_sym, used_ssym;
2437 int ir;
2438
2439 if (entsize == sizeof (Elf64_Mips_External_Rela))
2440 mips_elf64_swap_reloca_in (abfd,
2441 (Elf64_Mips_External_Rela *) native_relocs,
2442 &rela);
2443 else
2444 mips_elf64_swap_reloc_in (abfd,
2445 (Elf64_Mips_External_Rel *) native_relocs,
2446 &rela);
2447
2448 /* Each entry represents exactly three actual relocations. */
2449
2450 used_sym = FALSE;
2451 used_ssym = FALSE;
2452 for (ir = 0; ir < 3; ir++)
2453 {
2454 enum elf_mips_reloc_type type;
2455
2456 switch (ir)
2457 {
2458 default:
2459 abort ();
2460 case 0:
2461 type = (enum elf_mips_reloc_type) rela.r_type;
2462 break;
2463 case 1:
2464 type = (enum elf_mips_reloc_type) rela.r_type2;
2465 break;
2466 case 2:
2467 type = (enum elf_mips_reloc_type) rela.r_type3;
2468 break;
2469 }
2470
2471 /* Some types require symbols, whereas some do not. */
2472 switch (type)
2473 {
2474 case R_MIPS_NONE:
2475 case R_MIPS_LITERAL:
2476 case R_MIPS_INSERT_A:
2477 case R_MIPS_INSERT_B:
2478 case R_MIPS_DELETE:
2479 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2480 break;
2481
2482 default:
2483 if (! used_sym)
2484 {
2485 if (rela.r_sym == 0)
2486 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2487 else
2488 {
2489 asymbol **ps, *s;
2490
2491 ps = symbols + rela.r_sym - 1;
2492 s = *ps;
2493 if ((s->flags & BSF_SECTION_SYM) == 0)
2494 relent->sym_ptr_ptr = ps;
2495 else
2496 relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
2497 }
2498
2499 used_sym = TRUE;
2500 }
2501 else if (! used_ssym)
2502 {
2503 switch (rela.r_ssym)
2504 {
2505 case RSS_UNDEF:
2506 relent->sym_ptr_ptr =
2507 bfd_abs_section_ptr->symbol_ptr_ptr;
2508 break;
2509
2510 case RSS_GP:
2511 case RSS_GP0:
2512 case RSS_LOC:
2513 /* FIXME: I think these need to be handled using
2514 special howto structures. */
2515 BFD_ASSERT (0);
2516 break;
2517
2518 default:
2519 BFD_ASSERT (0);
2520 break;
2521 }
2522
2523 used_ssym = TRUE;
2524 }
2525 else
2526 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2527
2528 break;
2529 }
2530
2531 /* The address of an ELF reloc is section relative for an
2532 object file, and absolute for an executable file or
2533 shared library. The address of a BFD reloc is always
2534 section relative. */
2535 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic)
2536 relent->address = rela.r_offset;
2537 else
2538 relent->address = rela.r_offset - asect->vma;
2539
2540 relent->addend = rela.r_addend;
2541
2542 relent->howto = mips_elf64_rtype_to_howto (type, rela_p);
2543
2544 ++relent;
2545 }
2546 }
2547
2548 asect->reloc_count += (relent - relents) / 3;
2549
2550 if (allocated != NULL)
2551 free (allocated);
2552
2553 return TRUE;
2554
2555 error_return:
2556 if (allocated != NULL)
2557 free (allocated);
2558 return FALSE;
2559 }
2560
2561 /* Read the relocations. On Irix 6, there can be two reloc sections
2562 associated with a single data section. This is copied from
2563 elfcode.h as well, with changes as small as accounting for 3
2564 internal relocs per external reloc and resetting reloc_count to
2565 zero before processing the relocs of a section. */
2566
2567 static bfd_boolean
2568 mips_elf64_slurp_reloc_table (bfd *abfd, asection *asect,
2569 asymbol **symbols, bfd_boolean dynamic)
2570 {
2571 struct bfd_elf_section_data * const d = elf_section_data (asect);
2572 Elf_Internal_Shdr *rel_hdr;
2573 Elf_Internal_Shdr *rel_hdr2;
2574 bfd_size_type reloc_count;
2575 bfd_size_type reloc_count2;
2576 arelent *relents;
2577 bfd_size_type amt;
2578
2579 if (asect->relocation != NULL)
2580 return TRUE;
2581
2582 if (! dynamic)
2583 {
2584 if ((asect->flags & SEC_RELOC) == 0
2585 || asect->reloc_count == 0)
2586 return TRUE;
2587
2588 rel_hdr = &d->rel_hdr;
2589 reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
2590 rel_hdr2 = d->rel_hdr2;
2591 reloc_count2 = (rel_hdr2 ? NUM_SHDR_ENTRIES (rel_hdr2) : 0);
2592
2593 BFD_ASSERT (asect->reloc_count == reloc_count + reloc_count2);
2594 BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset
2595 || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset));
2596
2597 }
2598 else
2599 {
2600 /* Note that ASECT->RELOC_COUNT tends not to be accurate in this
2601 case because relocations against this section may use the
2602 dynamic symbol table, and in that case bfd_section_from_shdr
2603 in elf.c does not update the RELOC_COUNT. */
2604 if (asect->size == 0)
2605 return TRUE;
2606
2607 rel_hdr = &d->this_hdr;
2608 reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
2609 rel_hdr2 = NULL;
2610 reloc_count2 = 0;
2611 }
2612
2613 /* Allocate space for 3 arelent structures for each Rel structure. */
2614 amt = (reloc_count + reloc_count2) * 3 * sizeof (arelent);
2615 relents = bfd_alloc (abfd, amt);
2616 if (relents == NULL)
2617 return FALSE;
2618
2619 /* The slurp_one_reloc_table routine increments reloc_count. */
2620 asect->reloc_count = 0;
2621
2622 if (! mips_elf64_slurp_one_reloc_table (abfd, asect,
2623 rel_hdr, reloc_count,
2624 relents,
2625 symbols, dynamic))
2626 return FALSE;
2627 if (d->rel_hdr2 != NULL)
2628 {
2629 if (! mips_elf64_slurp_one_reloc_table (abfd, asect,
2630 rel_hdr2, reloc_count2,
2631 relents + reloc_count * 3,
2632 symbols, dynamic))
2633 return FALSE;
2634 }
2635
2636 asect->relocation = relents;
2637 return TRUE;
2638 }
2639
2640 /* Write out the relocations. */
2641
2642 static void
2643 mips_elf64_write_relocs (bfd *abfd, asection *sec, void *data)
2644 {
2645 bfd_boolean *failedp = data;
2646 int count;
2647 Elf_Internal_Shdr *rel_hdr;
2648 unsigned int idx;
2649
2650 /* If we have already failed, don't do anything. */
2651 if (*failedp)
2652 return;
2653
2654 if ((sec->flags & SEC_RELOC) == 0)
2655 return;
2656
2657 /* The linker backend writes the relocs out itself, and sets the
2658 reloc_count field to zero to inhibit writing them here. Also,
2659 sometimes the SEC_RELOC flag gets set even when there aren't any
2660 relocs. */
2661 if (sec->reloc_count == 0)
2662 return;
2663
2664 /* We can combine up to three relocs that refer to the same address
2665 if the latter relocs have no associated symbol. */
2666 count = 0;
2667 for (idx = 0; idx < sec->reloc_count; idx++)
2668 {
2669 bfd_vma addr;
2670 unsigned int i;
2671
2672 ++count;
2673
2674 addr = sec->orelocation[idx]->address;
2675 for (i = 0; i < 2; i++)
2676 {
2677 arelent *r;
2678
2679 if (idx + 1 >= sec->reloc_count)
2680 break;
2681 r = sec->orelocation[idx + 1];
2682 if (r->address != addr
2683 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2684 || (*r->sym_ptr_ptr)->value != 0)
2685 break;
2686
2687 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2688
2689 ++idx;
2690 }
2691 }
2692
2693 rel_hdr = &elf_section_data (sec)->rel_hdr;
2694
2695 /* Do the actual relocation. */
2696
2697 if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rel))
2698 mips_elf64_write_rel (abfd, sec, rel_hdr, &count, data);
2699 else if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rela))
2700 mips_elf64_write_rela (abfd, sec, rel_hdr, &count, data);
2701 else
2702 BFD_ASSERT (0);
2703 }
2704
2705 static void
2706 mips_elf64_write_rel (bfd *abfd, asection *sec,
2707 Elf_Internal_Shdr *rel_hdr,
2708 int *count, void *data)
2709 {
2710 bfd_boolean *failedp = data;
2711 Elf64_Mips_External_Rel *ext_rel;
2712 unsigned int idx;
2713 asymbol *last_sym = 0;
2714 int last_sym_idx = 0;
2715
2716 rel_hdr->sh_size = rel_hdr->sh_entsize * *count;
2717 rel_hdr->contents = bfd_alloc (abfd, rel_hdr->sh_size);
2718 if (rel_hdr->contents == NULL)
2719 {
2720 *failedp = TRUE;
2721 return;
2722 }
2723
2724 ext_rel = (Elf64_Mips_External_Rel *) rel_hdr->contents;
2725 for (idx = 0; idx < sec->reloc_count; idx++, ext_rel++)
2726 {
2727 arelent *ptr;
2728 Elf64_Mips_Internal_Rela int_rel;
2729 asymbol *sym;
2730 int n;
2731 unsigned int i;
2732
2733 ptr = sec->orelocation[idx];
2734
2735 /* The address of an ELF reloc is section relative for an object
2736 file, and absolute for an executable file or shared library.
2737 The address of a BFD reloc is always section relative. */
2738 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
2739 int_rel.r_offset = ptr->address;
2740 else
2741 int_rel.r_offset = ptr->address + sec->vma;
2742
2743 sym = *ptr->sym_ptr_ptr;
2744 if (sym == last_sym)
2745 n = last_sym_idx;
2746 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
2747 n = STN_UNDEF;
2748 else
2749 {
2750 last_sym = sym;
2751 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
2752 if (n < 0)
2753 {
2754 *failedp = TRUE;
2755 return;
2756 }
2757 last_sym_idx = n;
2758 }
2759
2760 int_rel.r_sym = n;
2761 int_rel.r_ssym = RSS_UNDEF;
2762
2763 if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
2764 && ! _bfd_elf_validate_reloc (abfd, ptr))
2765 {
2766 *failedp = TRUE;
2767 return;
2768 }
2769
2770 int_rel.r_type = ptr->howto->type;
2771 int_rel.r_type2 = (int) R_MIPS_NONE;
2772 int_rel.r_type3 = (int) R_MIPS_NONE;
2773
2774 for (i = 0; i < 2; i++)
2775 {
2776 arelent *r;
2777
2778 if (idx + 1 >= sec->reloc_count)
2779 break;
2780 r = sec->orelocation[idx + 1];
2781 if (r->address != ptr->address
2782 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2783 || (*r->sym_ptr_ptr)->value != 0)
2784 break;
2785
2786 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2787
2788 if (i == 0)
2789 int_rel.r_type2 = r->howto->type;
2790 else
2791 int_rel.r_type3 = r->howto->type;
2792
2793 ++idx;
2794 }
2795
2796 mips_elf64_swap_reloc_out (abfd, &int_rel, ext_rel);
2797 }
2798
2799 BFD_ASSERT (ext_rel - (Elf64_Mips_External_Rel *) rel_hdr->contents
2800 == *count);
2801 }
2802
2803 static void
2804 mips_elf64_write_rela (bfd *abfd, asection *sec,
2805 Elf_Internal_Shdr *rela_hdr,
2806 int *count, void *data)
2807 {
2808 bfd_boolean *failedp = data;
2809 Elf64_Mips_External_Rela *ext_rela;
2810 unsigned int idx;
2811 asymbol *last_sym = 0;
2812 int last_sym_idx = 0;
2813
2814 rela_hdr->sh_size = rela_hdr->sh_entsize * *count;
2815 rela_hdr->contents = bfd_alloc (abfd, rela_hdr->sh_size);
2816 if (rela_hdr->contents == NULL)
2817 {
2818 *failedp = TRUE;
2819 return;
2820 }
2821
2822 ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
2823 for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
2824 {
2825 arelent *ptr;
2826 Elf64_Mips_Internal_Rela int_rela;
2827 asymbol *sym;
2828 int n;
2829 unsigned int i;
2830
2831 ptr = sec->orelocation[idx];
2832
2833 /* The address of an ELF reloc is section relative for an object
2834 file, and absolute for an executable file or shared library.
2835 The address of a BFD reloc is always section relative. */
2836 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
2837 int_rela.r_offset = ptr->address;
2838 else
2839 int_rela.r_offset = ptr->address + sec->vma;
2840
2841 sym = *ptr->sym_ptr_ptr;
2842 if (sym == last_sym)
2843 n = last_sym_idx;
2844 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
2845 n = STN_UNDEF;
2846 else
2847 {
2848 last_sym = sym;
2849 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
2850 if (n < 0)
2851 {
2852 *failedp = TRUE;
2853 return;
2854 }
2855 last_sym_idx = n;
2856 }
2857
2858 int_rela.r_sym = n;
2859 int_rela.r_addend = ptr->addend;
2860 int_rela.r_ssym = RSS_UNDEF;
2861
2862 if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
2863 && ! _bfd_elf_validate_reloc (abfd, ptr))
2864 {
2865 *failedp = TRUE;
2866 return;
2867 }
2868
2869 int_rela.r_type = ptr->howto->type;
2870 int_rela.r_type2 = (int) R_MIPS_NONE;
2871 int_rela.r_type3 = (int) R_MIPS_NONE;
2872
2873 for (i = 0; i < 2; i++)
2874 {
2875 arelent *r;
2876
2877 if (idx + 1 >= sec->reloc_count)
2878 break;
2879 r = sec->orelocation[idx + 1];
2880 if (r->address != ptr->address
2881 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2882 || (*r->sym_ptr_ptr)->value != 0)
2883 break;
2884
2885 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2886
2887 if (i == 0)
2888 int_rela.r_type2 = r->howto->type;
2889 else
2890 int_rela.r_type3 = r->howto->type;
2891
2892 ++idx;
2893 }
2894
2895 mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
2896 }
2897
2898 BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
2899 == *count);
2900 }
2901 \f
2902 /* Set the right machine number for a MIPS ELF file. */
2903
2904 static bfd_boolean
2905 mips_elf64_object_p (bfd *abfd)
2906 {
2907 unsigned long mach;
2908
2909 /* Irix 6 is broken. Object file symbol tables are not always
2910 sorted correctly such that local symbols precede global symbols,
2911 and the sh_info field in the symbol table is not always right. */
2912 if (elf64_mips_irix_compat (abfd) != ict_none)
2913 elf_bad_symtab (abfd) = TRUE;
2914
2915 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
2916 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
2917 return TRUE;
2918 }
2919
2920 /* Depending on the target vector we generate some version of Irix
2921 executables or "normal" MIPS ELF ABI executables. */
2922 static irix_compat_t
2923 elf64_mips_irix_compat (bfd *abfd)
2924 {
2925 if ((abfd->xvec == &bfd_elf64_bigmips_vec)
2926 || (abfd->xvec == &bfd_elf64_littlemips_vec))
2927 return ict_irix6;
2928 else
2929 return ict_none;
2930 }
2931 \f
2932 /* Support for core dump NOTE sections. */
2933 static bfd_boolean
2934 elf64_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2935 {
2936 int offset;
2937 unsigned int size;
2938
2939 switch (note->descsz)
2940 {
2941 default:
2942 return FALSE;
2943
2944 case 480: /* Linux/MIPS - N64 kernel */
2945 /* pr_cursig */
2946 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2947
2948 /* pr_pid */
2949 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2950
2951 /* pr_reg */
2952 offset = 112;
2953 size = 360;
2954
2955 break;
2956 }
2957
2958 /* Make a ".reg/999" section. */
2959 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2960 size, note->descpos + offset);
2961 }
2962
2963 static bfd_boolean
2964 elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2965 {
2966 switch (note->descsz)
2967 {
2968 default:
2969 return FALSE;
2970
2971 case 136: /* Linux/MIPS - N64 kernel elf_prpsinfo */
2972 elf_tdata (abfd)->core_program
2973 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2974 elf_tdata (abfd)->core_command
2975 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2976 }
2977
2978 /* Note that for some reason, a spurious space is tacked
2979 onto the end of the args in some (at least one anyway)
2980 implementations, so strip it off if it exists. */
2981
2982 {
2983 char *command = elf_tdata (abfd)->core_command;
2984 int n = strlen (command);
2985
2986 if (0 < n && command[n - 1] == ' ')
2987 command[n - 1] = '\0';
2988 }
2989
2990 return TRUE;
2991 }
2992 \f
2993 /* ECOFF swapping routines. These are used when dealing with the
2994 .mdebug section, which is in the ECOFF debugging format. */
2995 static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap =
2996 {
2997 /* Symbol table magic number. */
2998 magicSym2,
2999 /* Alignment of debugging information. E.g., 4. */
3000 8,
3001 /* Sizes of external symbolic information. */
3002 sizeof (struct hdr_ext),
3003 sizeof (struct dnr_ext),
3004 sizeof (struct pdr_ext),
3005 sizeof (struct sym_ext),
3006 sizeof (struct opt_ext),
3007 sizeof (struct fdr_ext),
3008 sizeof (struct rfd_ext),
3009 sizeof (struct ext_ext),
3010 /* Functions to swap in external symbolic data. */
3011 ecoff_swap_hdr_in,
3012 ecoff_swap_dnr_in,
3013 ecoff_swap_pdr_in,
3014 ecoff_swap_sym_in,
3015 ecoff_swap_opt_in,
3016 ecoff_swap_fdr_in,
3017 ecoff_swap_rfd_in,
3018 ecoff_swap_ext_in,
3019 _bfd_ecoff_swap_tir_in,
3020 _bfd_ecoff_swap_rndx_in,
3021 /* Functions to swap out external symbolic data. */
3022 ecoff_swap_hdr_out,
3023 ecoff_swap_dnr_out,
3024 ecoff_swap_pdr_out,
3025 ecoff_swap_sym_out,
3026 ecoff_swap_opt_out,
3027 ecoff_swap_fdr_out,
3028 ecoff_swap_rfd_out,
3029 ecoff_swap_ext_out,
3030 _bfd_ecoff_swap_tir_out,
3031 _bfd_ecoff_swap_rndx_out,
3032 /* Function to read in symbolic data. */
3033 _bfd_mips_elf_read_ecoff_info
3034 };
3035 \f
3036 /* Relocations in the 64 bit MIPS ELF ABI are more complex than in
3037 standard ELF. This structure is used to redirect the relocation
3038 handling routines. */
3039
3040 const struct elf_size_info mips_elf64_size_info =
3041 {
3042 sizeof (Elf64_External_Ehdr),
3043 sizeof (Elf64_External_Phdr),
3044 sizeof (Elf64_External_Shdr),
3045 sizeof (Elf64_Mips_External_Rel),
3046 sizeof (Elf64_Mips_External_Rela),
3047 sizeof (Elf64_External_Sym),
3048 sizeof (Elf64_External_Dyn),
3049 sizeof (Elf_External_Note),
3050 4, /* hash-table entry size */
3051 3, /* internal relocations per external relocations */
3052 64, /* arch_size */
3053 3, /* log_file_align */
3054 ELFCLASS64,
3055 EV_CURRENT,
3056 bfd_elf64_write_out_phdrs,
3057 bfd_elf64_write_shdrs_and_ehdr,
3058 mips_elf64_write_relocs,
3059 bfd_elf64_swap_symbol_in,
3060 bfd_elf64_swap_symbol_out,
3061 mips_elf64_slurp_reloc_table,
3062 bfd_elf64_slurp_symbol_table,
3063 bfd_elf64_swap_dyn_in,
3064 bfd_elf64_swap_dyn_out,
3065 mips_elf64_be_swap_reloc_in,
3066 mips_elf64_be_swap_reloc_out,
3067 mips_elf64_be_swap_reloca_in,
3068 mips_elf64_be_swap_reloca_out
3069 };
3070
3071 #define ELF_ARCH bfd_arch_mips
3072 #define ELF_MACHINE_CODE EM_MIPS
3073
3074 #define elf_backend_collect TRUE
3075 #define elf_backend_type_change_ok TRUE
3076 #define elf_backend_can_gc_sections TRUE
3077 #define elf_info_to_howto mips_elf64_info_to_howto_rela
3078 #define elf_info_to_howto_rel mips_elf64_info_to_howto_rel
3079 #define elf_backend_object_p mips_elf64_object_p
3080 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
3081 #define elf_backend_section_processing _bfd_mips_elf_section_processing
3082 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
3083 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
3084 #define elf_backend_section_from_bfd_section \
3085 _bfd_mips_elf_section_from_bfd_section
3086 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
3087 #define elf_backend_link_output_symbol_hook \
3088 _bfd_mips_elf_link_output_symbol_hook
3089 #define elf_backend_create_dynamic_sections \
3090 _bfd_mips_elf_create_dynamic_sections
3091 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
3092 #define elf_backend_merge_symbol_attribute \
3093 _bfd_mips_elf_merge_symbol_attribute
3094 #define elf_backend_adjust_dynamic_symbol \
3095 _bfd_mips_elf_adjust_dynamic_symbol
3096 #define elf_backend_always_size_sections \
3097 _bfd_mips_elf_always_size_sections
3098 #define elf_backend_size_dynamic_sections \
3099 _bfd_mips_elf_size_dynamic_sections
3100 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3101 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
3102 #define elf_backend_finish_dynamic_symbol \
3103 _bfd_mips_elf_finish_dynamic_symbol
3104 #define elf_backend_finish_dynamic_sections \
3105 _bfd_mips_elf_finish_dynamic_sections
3106 #define elf_backend_final_write_processing \
3107 _bfd_mips_elf_final_write_processing
3108 #define elf_backend_additional_program_headers \
3109 _bfd_mips_elf_additional_program_headers
3110 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
3111 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
3112 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
3113 #define elf_backend_copy_indirect_symbol \
3114 _bfd_mips_elf_copy_indirect_symbol
3115 #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
3116 #define elf_backend_ignore_discarded_relocs \
3117 _bfd_mips_elf_ignore_discarded_relocs
3118 #define elf_backend_mips_irix_compat elf64_mips_irix_compat
3119 #define elf_backend_mips_rtype_to_howto mips_elf64_rtype_to_howto
3120 #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
3121 #define elf_backend_size_info mips_elf64_size_info
3122
3123 #define elf_backend_grok_prstatus elf64_mips_grok_prstatus
3124 #define elf_backend_grok_psinfo elf64_mips_grok_psinfo
3125
3126 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
3127
3128 /* MIPS ELF64 can use a mixture of REL and RELA, but some Relocations
3129 work better/work only in RELA, so we default to this. */
3130 #define elf_backend_may_use_rel_p 1
3131 #define elf_backend_may_use_rela_p 1
3132 #define elf_backend_default_use_rela_p 1
3133
3134 #define elf_backend_write_section _bfd_mips_elf_write_section
3135
3136 /* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit
3137 MIPS-specific function only applies to IRIX5, which had no 64-bit
3138 ABI. */
3139 #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line
3140 #define bfd_elf64_find_inliner_info _bfd_mips_elf_find_inliner_info
3141 #define bfd_elf64_new_section_hook _bfd_mips_elf_new_section_hook
3142 #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents
3143 #define bfd_elf64_bfd_get_relocated_section_contents \
3144 _bfd_elf_mips_get_relocated_section_contents
3145 #define bfd_elf64_bfd_link_hash_table_create \
3146 _bfd_mips_elf_link_hash_table_create
3147 #define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link
3148 #define bfd_elf64_bfd_merge_private_bfd_data \
3149 _bfd_mips_elf_merge_private_bfd_data
3150 #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags
3151 #define bfd_elf64_bfd_print_private_bfd_data \
3152 _bfd_mips_elf_print_private_bfd_data
3153
3154 #define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
3155 #define bfd_elf64_canonicalize_reloc mips_elf64_canonicalize_reloc
3156 #define bfd_elf64_get_dynamic_reloc_upper_bound mips_elf64_get_dynamic_reloc_upper_bound
3157 #define bfd_elf64_canonicalize_dynamic_reloc mips_elf64_canonicalize_dynamic_reloc
3158 #define bfd_elf64_bfd_relax_section _bfd_mips_relax_section
3159
3160 /* MIPS ELF64 archive functions. */
3161 #define bfd_elf64_archive_functions
3162 extern bfd_boolean bfd_elf64_archive_slurp_armap
3163 (bfd *);
3164 extern bfd_boolean bfd_elf64_archive_write_armap
3165 (bfd *, unsigned int, struct orl *, unsigned int, int);
3166 #define bfd_elf64_archive_slurp_extended_name_table \
3167 _bfd_archive_coff_slurp_extended_name_table
3168 #define bfd_elf64_archive_construct_extended_name_table \
3169 _bfd_archive_coff_construct_extended_name_table
3170 #define bfd_elf64_archive_truncate_arname \
3171 _bfd_archive_coff_truncate_arname
3172 #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
3173 #define bfd_elf64_archive_openr_next_archived_file \
3174 _bfd_archive_coff_openr_next_archived_file
3175 #define bfd_elf64_archive_get_elt_at_index \
3176 _bfd_archive_coff_get_elt_at_index
3177 #define bfd_elf64_archive_generic_stat_arch_elt \
3178 _bfd_archive_coff_generic_stat_arch_elt
3179 #define bfd_elf64_archive_update_armap_timestamp \
3180 _bfd_archive_coff_update_armap_timestamp
3181
3182 /* The SGI style (n)64 NewABI. */
3183 #define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec
3184 #define TARGET_LITTLE_NAME "elf64-littlemips"
3185 #define TARGET_BIG_SYM bfd_elf64_bigmips_vec
3186 #define TARGET_BIG_NAME "elf64-bigmips"
3187
3188 #define ELF_MAXPAGESIZE 0x10000
3189 #define ELF_COMMONPAGESIZE 0x1000
3190
3191 #include "elf64-target.h"
3192
3193 /* The SYSV-style 'traditional' (n)64 NewABI. */
3194 #undef TARGET_LITTLE_SYM
3195 #undef TARGET_LITTLE_NAME
3196 #undef TARGET_BIG_SYM
3197 #undef TARGET_BIG_NAME
3198
3199 #undef ELF_MAXPAGESIZE
3200 #undef ELF_COMMONPAGESIZE
3201
3202 #define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec
3203 #define TARGET_LITTLE_NAME "elf64-tradlittlemips"
3204 #define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec
3205 #define TARGET_BIG_NAME "elf64-tradbigmips"
3206
3207 #define ELF_MAXPAGESIZE 0x10000
3208 #define ELF_COMMONPAGESIZE 0x1000
3209 #define elf64_bed elf64_tradbed
3210
3211 /* Include the target file again for this target. */
3212 #include "elf64-target.h"
GDB Binutils - Deliverables
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