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* bfd-in.h (CONST_STRNCPY) : Delete.
[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 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
794 /* The relocation table used for SHT_RELA sections. */
795
796 static reloc_howto_type mips_elf64_howto_table_rela[] =
797 {
798 /* No relocation. */
799 HOWTO (R_MIPS_NONE, /* type */
800 0, /* rightshift */
801 0, /* size (0 = byte, 1 = short, 2 = long) */
802 0, /* bitsize */
803 FALSE, /* pc_relative */
804 0, /* bitpos */
805 complain_overflow_dont, /* complain_on_overflow */
806 _bfd_mips_elf_generic_reloc, /* special_function */
807 "R_MIPS_NONE", /* name */
808 FALSE, /* partial_inplace */
809 0, /* src_mask */
810 0, /* dst_mask */
811 FALSE), /* pcrel_offset */
812
813 /* 16 bit relocation. */
814 HOWTO (R_MIPS_16, /* type */
815 0, /* rightshift */
816 2, /* size (0 = byte, 1 = short, 2 = long) */
817 16, /* bitsize */
818 FALSE, /* pc_relative */
819 0, /* bitpos */
820 complain_overflow_signed, /* complain_on_overflow */
821 _bfd_mips_elf_generic_reloc, /* special_function */
822 "R_MIPS_16", /* name */
823 FALSE, /* partial_inplace */
824 0, /* src_mask */
825 0x0000ffff, /* dst_mask */
826 FALSE), /* pcrel_offset */
827
828 /* 32 bit relocation. */
829 HOWTO (R_MIPS_32, /* type */
830 0, /* rightshift */
831 2, /* size (0 = byte, 1 = short, 2 = long) */
832 32, /* bitsize */
833 FALSE, /* pc_relative */
834 0, /* bitpos */
835 complain_overflow_dont, /* complain_on_overflow */
836 _bfd_mips_elf_generic_reloc, /* special_function */
837 "R_MIPS_32", /* name */
838 FALSE, /* partial_inplace */
839 0, /* src_mask */
840 0xffffffff, /* dst_mask */
841 FALSE), /* pcrel_offset */
842
843 /* 32 bit symbol relative relocation. */
844 HOWTO (R_MIPS_REL32, /* 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_REL32", /* name */
853 FALSE, /* partial_inplace */
854 0, /* src_mask */
855 0xffffffff, /* dst_mask */
856 FALSE), /* pcrel_offset */
857
858 /* 26 bit jump address. */
859 HOWTO (R_MIPS_26, /* type */
860 2, /* rightshift */
861 2, /* size (0 = byte, 1 = short, 2 = long) */
862 26, /* bitsize */
863 FALSE, /* pc_relative */
864 0, /* bitpos */
865 complain_overflow_dont, /* complain_on_overflow */
866 /* This needs complex overflow
867 detection, because the upper 36
868 bits must match the PC + 4. */
869 _bfd_mips_elf_generic_reloc, /* special_function */
870 "R_MIPS_26", /* name */
871 FALSE, /* partial_inplace */
872 0, /* src_mask */
873 0x03ffffff, /* dst_mask */
874 FALSE), /* pcrel_offset */
875
876 /* High 16 bits of symbol value. */
877 HOWTO (R_MIPS_HI16, /* type */
878 0, /* rightshift */
879 2, /* size (0 = byte, 1 = short, 2 = long) */
880 16, /* bitsize */
881 FALSE, /* pc_relative */
882 0, /* bitpos */
883 complain_overflow_dont, /* complain_on_overflow */
884 _bfd_mips_elf_generic_reloc, /* special_function */
885 "R_MIPS_HI16", /* name */
886 FALSE, /* partial_inplace */
887 0, /* src_mask */
888 0x0000ffff, /* dst_mask */
889 FALSE), /* pcrel_offset */
890
891 /* Low 16 bits of symbol value. */
892 HOWTO (R_MIPS_LO16, /* 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_LO16", /* name */
901 FALSE, /* partial_inplace */
902 0, /* src_mask */
903 0x0000ffff, /* dst_mask */
904 FALSE), /* pcrel_offset */
905
906 /* GP relative reference. */
907 HOWTO (R_MIPS_GPREL16, /* 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_signed, /* complain_on_overflow */
914 mips_elf64_gprel16_reloc, /* special_function */
915 "R_MIPS_GPREL16", /* name */
916 FALSE, /* partial_inplace */
917 0, /* src_mask */
918 0x0000ffff, /* dst_mask */
919 FALSE), /* pcrel_offset */
920
921 /* Reference to literal section. */
922 HOWTO (R_MIPS_LITERAL, /* 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_literal_reloc, /* special_function */
930 "R_MIPS_LITERAL", /* name */
931 FALSE, /* partial_inplace */
932 0, /* src_mask */
933 0x0000ffff, /* dst_mask */
934 FALSE), /* pcrel_offset */
935
936 /* Reference to global offset table. */
937 HOWTO (R_MIPS_GOT16, /* 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 _bfd_mips_elf_generic_reloc, /* special_function */
945 "R_MIPS_GOT16", /* name */
946 FALSE, /* partial_inplace */
947 0, /* src_mask */
948 0x0000ffff, /* dst_mask */
949 FALSE), /* pcrel_offset */
950
951 /* 16 bit PC relative reference. Note that the ABI document has a typo
952 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
953 We do the right thing here. */
954 HOWTO (R_MIPS_PC16, /* type */
955 2, /* rightshift */
956 2, /* size (0 = byte, 1 = short, 2 = long) */
957 16, /* bitsize */
958 TRUE, /* pc_relative */
959 0, /* bitpos */
960 complain_overflow_signed, /* complain_on_overflow */
961 _bfd_mips_elf_generic_reloc, /* special_function */
962 "R_MIPS_PC16", /* name */
963 FALSE, /* partial_inplace */
964 0, /* src_mask */
965 0x0000ffff, /* dst_mask */
966 TRUE), /* pcrel_offset */
967
968 /* 16 bit call through global offset table. */
969 HOWTO (R_MIPS_CALL16, /* type */
970 0, /* rightshift */
971 2, /* size (0 = byte, 1 = short, 2 = long) */
972 16, /* bitsize */
973 FALSE, /* pc_relative */
974 0, /* bitpos */
975 complain_overflow_signed, /* complain_on_overflow */
976 _bfd_mips_elf_generic_reloc, /* special_function */
977 "R_MIPS_CALL16", /* name */
978 FALSE, /* partial_inplace */
979 0, /* src_mask */
980 0x0000ffff, /* dst_mask */
981 FALSE), /* pcrel_offset */
982
983 /* 32 bit GP relative reference. */
984 HOWTO (R_MIPS_GPREL32, /* type */
985 0, /* rightshift */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
987 32, /* bitsize */
988 FALSE, /* pc_relative */
989 0, /* bitpos */
990 complain_overflow_dont, /* complain_on_overflow */
991 mips_elf64_gprel32_reloc, /* special_function */
992 "R_MIPS_GPREL32", /* name */
993 FALSE, /* partial_inplace */
994 0, /* src_mask */
995 0xffffffff, /* dst_mask */
996 FALSE), /* pcrel_offset */
997
998 EMPTY_HOWTO (13),
999 EMPTY_HOWTO (14),
1000 EMPTY_HOWTO (15),
1001
1002 /* A 5 bit shift field. */
1003 HOWTO (R_MIPS_SHIFT5, /* type */
1004 0, /* rightshift */
1005 2, /* size (0 = byte, 1 = short, 2 = long) */
1006 5, /* bitsize */
1007 FALSE, /* pc_relative */
1008 6, /* bitpos */
1009 complain_overflow_bitfield, /* complain_on_overflow */
1010 _bfd_mips_elf_generic_reloc, /* special_function */
1011 "R_MIPS_SHIFT5", /* name */
1012 FALSE, /* partial_inplace */
1013 0, /* src_mask */
1014 0x000007c0, /* dst_mask */
1015 FALSE), /* pcrel_offset */
1016
1017 /* A 6 bit shift field. */
1018 HOWTO (R_MIPS_SHIFT6, /* type */
1019 0, /* rightshift */
1020 2, /* size (0 = byte, 1 = short, 2 = long) */
1021 6, /* bitsize */
1022 FALSE, /* pc_relative */
1023 6, /* bitpos */
1024 complain_overflow_bitfield, /* complain_on_overflow */
1025 mips_elf64_shift6_reloc, /* special_function */
1026 "R_MIPS_SHIFT6", /* name */
1027 FALSE, /* partial_inplace */
1028 0, /* src_mask */
1029 0x000007c4, /* dst_mask */
1030 FALSE), /* pcrel_offset */
1031
1032 /* 64 bit relocation. */
1033 HOWTO (R_MIPS_64, /* type */
1034 0, /* rightshift */
1035 4, /* size (0 = byte, 1 = short, 2 = long) */
1036 64, /* bitsize */
1037 FALSE, /* pc_relative */
1038 0, /* bitpos */
1039 complain_overflow_dont, /* complain_on_overflow */
1040 _bfd_mips_elf_generic_reloc, /* special_function */
1041 "R_MIPS_64", /* name */
1042 FALSE, /* partial_inplace */
1043 0, /* src_mask */
1044 MINUS_ONE, /* dst_mask */
1045 FALSE), /* pcrel_offset */
1046
1047 /* Displacement in the global offset table. */
1048 HOWTO (R_MIPS_GOT_DISP, /* type */
1049 0, /* rightshift */
1050 2, /* size (0 = byte, 1 = short, 2 = long) */
1051 16, /* bitsize */
1052 FALSE, /* pc_relative */
1053 0, /* bitpos */
1054 complain_overflow_signed, /* complain_on_overflow */
1055 _bfd_mips_elf_generic_reloc, /* special_function */
1056 "R_MIPS_GOT_DISP", /* name */
1057 FALSE, /* partial_inplace */
1058 0, /* src_mask */
1059 0x0000ffff, /* dst_mask */
1060 FALSE), /* pcrel_offset */
1061
1062 /* Displacement to page pointer in the global offset table. */
1063 HOWTO (R_MIPS_GOT_PAGE, /* 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_PAGE", /* name */
1072 FALSE, /* partial_inplace */
1073 0, /* src_mask */
1074 0x0000ffff, /* dst_mask */
1075 FALSE), /* pcrel_offset */
1076
1077 /* Offset from page pointer in the global offset table. */
1078 HOWTO (R_MIPS_GOT_OFST, /* 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_OFST", /* name */
1087 FALSE, /* partial_inplace */
1088 0, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 FALSE), /* pcrel_offset */
1091
1092 /* High 16 bits of displacement in global offset table. */
1093 HOWTO (R_MIPS_GOT_HI16, /* 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_dont, /* complain_on_overflow */
1100 _bfd_mips_elf_generic_reloc, /* special_function */
1101 "R_MIPS_GOT_HI16", /* name */
1102 FALSE, /* partial_inplace */
1103 0, /* src_mask */
1104 0x0000ffff, /* dst_mask */
1105 FALSE), /* pcrel_offset */
1106
1107 /* Low 16 bits of displacement in global offset table. */
1108 HOWTO (R_MIPS_GOT_LO16, /* 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_LO16", /* name */
1117 FALSE, /* partial_inplace */
1118 0, /* src_mask */
1119 0x0000ffff, /* dst_mask */
1120 FALSE), /* pcrel_offset */
1121
1122 /* 64 bit subtraction. */
1123 HOWTO (R_MIPS_SUB, /* type */
1124 0, /* rightshift */
1125 4, /* size (0 = byte, 1 = short, 2 = long) */
1126 64, /* 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_SUB", /* name */
1132 FALSE, /* partial_inplace */
1133 0, /* src_mask */
1134 MINUS_ONE, /* dst_mask */
1135 FALSE), /* pcrel_offset */
1136
1137 /* Insert the addend as an instruction. */
1138 /* FIXME: Not handled correctly. */
1139 HOWTO (R_MIPS_INSERT_A, /* type */
1140 0, /* rightshift */
1141 2, /* size (0 = byte, 1 = short, 2 = long) */
1142 32, /* bitsize */
1143 FALSE, /* pc_relative */
1144 0, /* bitpos */
1145 complain_overflow_dont, /* complain_on_overflow */
1146 _bfd_mips_elf_generic_reloc, /* special_function */
1147 "R_MIPS_INSERT_A", /* name */
1148 FALSE, /* partial_inplace */
1149 0, /* src_mask */
1150 0xffffffff, /* dst_mask */
1151 FALSE), /* pcrel_offset */
1152
1153 /* Insert the addend as an instruction, and change all relocations
1154 to refer to the old instruction at the address. */
1155 /* FIXME: Not handled correctly. */
1156 HOWTO (R_MIPS_INSERT_B, /* type */
1157 0, /* rightshift */
1158 2, /* size (0 = byte, 1 = short, 2 = long) */
1159 32, /* bitsize */
1160 FALSE, /* pc_relative */
1161 0, /* bitpos */
1162 complain_overflow_dont, /* complain_on_overflow */
1163 _bfd_mips_elf_generic_reloc, /* special_function */
1164 "R_MIPS_INSERT_B", /* name */
1165 FALSE, /* partial_inplace */
1166 0, /* src_mask */
1167 0xffffffff, /* dst_mask */
1168 FALSE), /* pcrel_offset */
1169
1170 /* Delete a 32 bit instruction. */
1171 /* FIXME: Not handled correctly. */
1172 HOWTO (R_MIPS_DELETE, /* type */
1173 0, /* rightshift */
1174 2, /* size (0 = byte, 1 = short, 2 = long) */
1175 32, /* bitsize */
1176 FALSE, /* pc_relative */
1177 0, /* bitpos */
1178 complain_overflow_dont, /* complain_on_overflow */
1179 _bfd_mips_elf_generic_reloc, /* special_function */
1180 "R_MIPS_DELETE", /* name */
1181 FALSE, /* partial_inplace */
1182 0, /* src_mask */
1183 0xffffffff, /* dst_mask */
1184 FALSE), /* pcrel_offset */
1185
1186 /* Get the higher value of a 64 bit addend. */
1187 HOWTO (R_MIPS_HIGHER, /* type */
1188 0, /* rightshift */
1189 2, /* size (0 = byte, 1 = short, 2 = long) */
1190 16, /* 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_HIGHER", /* name */
1196 FALSE, /* partial_inplace */
1197 0, /* src_mask */
1198 0x0000ffff, /* dst_mask */
1199 FALSE), /* pcrel_offset */
1200
1201 /* Get the highest value of a 64 bit addend. */
1202 HOWTO (R_MIPS_HIGHEST, /* 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_HIGHEST", /* name */
1211 FALSE, /* partial_inplace */
1212 0, /* src_mask */
1213 0x0000ffff, /* dst_mask */
1214 FALSE), /* pcrel_offset */
1215
1216 /* High 16 bits of displacement in global offset table. */
1217 HOWTO (R_MIPS_CALL_HI16, /* 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_CALL_HI16", /* name */
1226 FALSE, /* partial_inplace */
1227 0, /* src_mask */
1228 0x0000ffff, /* dst_mask */
1229 FALSE), /* pcrel_offset */
1230
1231 /* Low 16 bits of displacement in global offset table. */
1232 HOWTO (R_MIPS_CALL_LO16, /* 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_LO16", /* name */
1241 FALSE, /* partial_inplace */
1242 0, /* src_mask */
1243 0x0000ffff, /* dst_mask */
1244 FALSE), /* pcrel_offset */
1245
1246 /* Section displacement, used by an associated event location section. */
1247 HOWTO (R_MIPS_SCN_DISP, /* type */
1248 0, /* rightshift */
1249 2, /* size (0 = byte, 1 = short, 2 = long) */
1250 32, /* 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_SCN_DISP", /* name */
1256 FALSE, /* partial_inplace */
1257 0, /* src_mask */
1258 0xffffffff, /* dst_mask */
1259 FALSE), /* pcrel_offset */
1260
1261 HOWTO (R_MIPS_REL16, /* type */
1262 0, /* rightshift */
1263 1, /* size (0 = byte, 1 = short, 2 = long) */
1264 16, /* bitsize */
1265 FALSE, /* pc_relative */
1266 0, /* bitpos */
1267 complain_overflow_signed, /* complain_on_overflow */
1268 _bfd_mips_elf_generic_reloc, /* special_function */
1269 "R_MIPS_REL16", /* name */
1270 FALSE, /* partial_inplace */
1271 0, /* src_mask */
1272 0xffff, /* dst_mask */
1273 FALSE), /* pcrel_offset */
1274
1275 /* These two are obsolete. */
1276 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
1277 EMPTY_HOWTO (R_MIPS_PJUMP),
1278
1279 /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
1280 It must be used for multigot GOT's (and only there). */
1281 HOWTO (R_MIPS_RELGOT, /* type */
1282 0, /* rightshift */
1283 2, /* size (0 = byte, 1 = short, 2 = long) */
1284 32, /* bitsize */
1285 FALSE, /* pc_relative */
1286 0, /* bitpos */
1287 complain_overflow_dont, /* complain_on_overflow */
1288 _bfd_mips_elf_generic_reloc, /* special_function */
1289 "R_MIPS_RELGOT", /* name */
1290 FALSE, /* partial_inplace */
1291 0, /* src_mask */
1292 0xffffffff, /* dst_mask */
1293 FALSE), /* pcrel_offset */
1294
1295 /* Protected jump conversion. This is an optimization hint. No
1296 relocation is required for correctness. */
1297 HOWTO (R_MIPS_JALR, /* type */
1298 0, /* rightshift */
1299 2, /* size (0 = byte, 1 = short, 2 = long) */
1300 32, /* bitsize */
1301 FALSE, /* pc_relative */
1302 0, /* bitpos */
1303 complain_overflow_dont, /* complain_on_overflow */
1304 _bfd_mips_elf_generic_reloc, /* special_function */
1305 "R_MIPS_JALR", /* name */
1306 FALSE, /* partial_inplace */
1307 0, /* src_mask */
1308 0x00000000, /* dst_mask */
1309 FALSE), /* pcrel_offset */
1310
1311 /* TLS relocations. */
1312 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
1313 EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
1314 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
1315 EMPTY_HOWTO (R_MIPS_TLS_DTPREL64),
1316
1317 /* TLS general dynamic variable reference. */
1318 HOWTO (R_MIPS_TLS_GD, /* type */
1319 0, /* rightshift */
1320 2, /* size (0 = byte, 1 = short, 2 = long) */
1321 16, /* bitsize */
1322 FALSE, /* pc_relative */
1323 0, /* bitpos */
1324 complain_overflow_signed, /* complain_on_overflow */
1325 _bfd_mips_elf_generic_reloc, /* special_function */
1326 "R_MIPS_TLS_GD", /* name */
1327 TRUE, /* partial_inplace */
1328 0x0000ffff, /* src_mask */
1329 0x0000ffff, /* dst_mask */
1330 FALSE), /* pcrel_offset */
1331
1332 /* TLS local dynamic variable reference. */
1333 HOWTO (R_MIPS_TLS_LDM, /* 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_LDM", /* name */
1342 TRUE, /* partial_inplace */
1343 0x0000ffff, /* src_mask */
1344 0x0000ffff, /* dst_mask */
1345 FALSE), /* pcrel_offset */
1346
1347 /* TLS local dynamic offset. */
1348 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* 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_DTPREL_HI16", /* 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_LO16, /* 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_LO16", /* name */
1372 TRUE, /* partial_inplace */
1373 0x0000ffff, /* src_mask */
1374 0x0000ffff, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376
1377 /* TLS thread pointer offset. */
1378 HOWTO (R_MIPS_TLS_GOTTPREL, /* 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_GOTTPREL", /* name */
1387 TRUE, /* partial_inplace */
1388 0x0000ffff, /* src_mask */
1389 0x0000ffff, /* dst_mask */
1390 FALSE), /* pcrel_offset */
1391
1392 EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
1393 EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
1394
1395 /* TLS thread pointer offset. */
1396 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
1397 0, /* rightshift */
1398 2, /* size (0 = byte, 1 = short, 2 = long) */
1399 16, /* bitsize */
1400 FALSE, /* pc_relative */
1401 0, /* bitpos */
1402 complain_overflow_signed, /* complain_on_overflow */
1403 _bfd_mips_elf_generic_reloc, /* special_function */
1404 "R_MIPS_TLS_TPREL_HI16", /* name */
1405 TRUE, /* partial_inplace */
1406 0x0000ffff, /* src_mask */
1407 0x0000ffff, /* dst_mask */
1408 FALSE), /* pcrel_offset */
1409
1410 /* TLS thread pointer offset. */
1411 HOWTO (R_MIPS_TLS_TPREL_LO16, /* 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_LO16", /* name */
1420 TRUE, /* partial_inplace */
1421 0x0000ffff, /* src_mask */
1422 0x0000ffff, /* dst_mask */
1423 FALSE), /* pcrel_offset */
1424 };
1425
1426 static reloc_howto_type mips16_elf64_howto_table_rel[] =
1427 {
1428 /* The reloc used for the mips16 jump instruction. */
1429 HOWTO (R_MIPS16_26, /* type */
1430 2, /* rightshift */
1431 2, /* size (0 = byte, 1 = short, 2 = long) */
1432 26, /* bitsize */
1433 FALSE, /* pc_relative */
1434 0, /* bitpos */
1435 complain_overflow_dont, /* complain_on_overflow */
1436 /* This needs complex overflow
1437 detection, because the upper four
1438 bits must match the PC. */
1439 _bfd_mips_elf_generic_reloc, /* special_function */
1440 "R_MIPS16_26", /* name */
1441 TRUE, /* partial_inplace */
1442 0x3ffffff, /* src_mask */
1443 0x3ffffff, /* dst_mask */
1444 FALSE), /* pcrel_offset */
1445
1446 /* The reloc used for the mips16 gprel instruction. */
1447 HOWTO (R_MIPS16_GPREL, /* type */
1448 0, /* rightshift */
1449 2, /* size (0 = byte, 1 = short, 2 = long) */
1450 16, /* bitsize */
1451 FALSE, /* pc_relative */
1452 0, /* bitpos */
1453 complain_overflow_signed, /* complain_on_overflow */
1454 mips16_gprel_reloc, /* special_function */
1455 "R_MIPS16_GPREL", /* name */
1456 TRUE, /* partial_inplace */
1457 0x0000ffff, /* src_mask */
1458 0x0000ffff, /* dst_mask */
1459 FALSE), /* pcrel_offset */
1460
1461 /* A placeholder for MIPS16 reference to global offset table. */
1462 EMPTY_HOWTO (R_MIPS16_GOT16),
1463
1464 /* A placeholder for MIPS16 16 bit call through global offset table. */
1465 EMPTY_HOWTO (R_MIPS16_CALL16),
1466
1467 /* MIPS16 high 16 bits of symbol value. */
1468 HOWTO (R_MIPS16_HI16, /* type */
1469 16, /* rightshift */
1470 2, /* size (0 = byte, 1 = short, 2 = long) */
1471 16, /* bitsize */
1472 FALSE, /* pc_relative */
1473 0, /* bitpos */
1474 complain_overflow_dont, /* complain_on_overflow */
1475 _bfd_mips_elf_hi16_reloc, /* special_function */
1476 "R_MIPS16_HI16", /* name */
1477 TRUE, /* partial_inplace */
1478 0x0000ffff, /* src_mask */
1479 0x0000ffff, /* dst_mask */
1480 FALSE), /* pcrel_offset */
1481
1482 /* MIPS16 low 16 bits of symbol value. */
1483 HOWTO (R_MIPS16_LO16, /* type */
1484 0, /* rightshift */
1485 2, /* size (0 = byte, 1 = short, 2 = long) */
1486 16, /* bitsize */
1487 FALSE, /* pc_relative */
1488 0, /* bitpos */
1489 complain_overflow_dont, /* complain_on_overflow */
1490 _bfd_mips_elf_lo16_reloc, /* special_function */
1491 "R_MIPS16_LO16", /* name */
1492 TRUE, /* partial_inplace */
1493 0x0000ffff, /* src_mask */
1494 0x0000ffff, /* dst_mask */
1495 FALSE), /* pcrel_offset */
1496 };
1497
1498 static reloc_howto_type mips16_elf64_howto_table_rela[] =
1499 {
1500 /* The reloc used for the mips16 jump instruction. */
1501 HOWTO (R_MIPS16_26, /* type */
1502 2, /* rightshift */
1503 2, /* size (0 = byte, 1 = short, 2 = long) */
1504 26, /* bitsize */
1505 FALSE, /* pc_relative */
1506 0, /* bitpos */
1507 complain_overflow_dont, /* complain_on_overflow */
1508 /* This needs complex overflow
1509 detection, because the upper four
1510 bits must match the PC. */
1511 _bfd_mips_elf_generic_reloc, /* special_function */
1512 "R_MIPS16_26", /* name */
1513 FALSE, /* partial_inplace */
1514 0x3ffffff, /* src_mask */
1515 0x3ffffff, /* dst_mask */
1516 FALSE), /* pcrel_offset */
1517
1518 /* The reloc used for the mips16 gprel instruction. */
1519 HOWTO (R_MIPS16_GPREL, /* type */
1520 0, /* rightshift */
1521 2, /* size (0 = byte, 1 = short, 2 = long) */
1522 16, /* bitsize */
1523 FALSE, /* pc_relative */
1524 0, /* bitpos */
1525 complain_overflow_signed, /* complain_on_overflow */
1526 mips16_gprel_reloc, /* special_function */
1527 "R_MIPS16_GPREL", /* name */
1528 FALSE, /* partial_inplace */
1529 0x0000ffff, /* src_mask */
1530 0x0000ffff, /* dst_mask */
1531 FALSE), /* pcrel_offset */
1532
1533 /* A placeholder for MIPS16 reference to global offset table. */
1534 EMPTY_HOWTO (R_MIPS16_GOT16),
1535
1536 /* A placeholder for MIPS16 16 bit call through global offset table. */
1537 EMPTY_HOWTO (R_MIPS16_CALL16),
1538
1539 /* MIPS16 high 16 bits of symbol value. */
1540 HOWTO (R_MIPS16_HI16, /* type */
1541 16, /* rightshift */
1542 2, /* size (0 = byte, 1 = short, 2 = long) */
1543 16, /* bitsize */
1544 FALSE, /* pc_relative */
1545 0, /* bitpos */
1546 complain_overflow_dont, /* complain_on_overflow */
1547 _bfd_mips_elf_hi16_reloc, /* special_function */
1548 "R_MIPS16_HI16", /* name */
1549 FALSE, /* partial_inplace */
1550 0x0000ffff, /* src_mask */
1551 0x0000ffff, /* dst_mask */
1552 FALSE), /* pcrel_offset */
1553
1554 /* MIPS16 low 16 bits of symbol value. */
1555 HOWTO (R_MIPS16_LO16, /* type */
1556 0, /* rightshift */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1558 16, /* bitsize */
1559 FALSE, /* pc_relative */
1560 0, /* bitpos */
1561 complain_overflow_dont, /* complain_on_overflow */
1562 _bfd_mips_elf_lo16_reloc, /* special_function */
1563 "R_MIPS16_LO16", /* name */
1564 FALSE, /* partial_inplace */
1565 0x0000ffff, /* src_mask */
1566 0x0000ffff, /* dst_mask */
1567 FALSE), /* pcrel_offset */
1568 };
1569
1570 /* GNU extension to record C++ vtable hierarchy */
1571 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1572 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1573 0, /* rightshift */
1574 2, /* size (0 = byte, 1 = short, 2 = long) */
1575 0, /* bitsize */
1576 FALSE, /* pc_relative */
1577 0, /* bitpos */
1578 complain_overflow_dont, /* complain_on_overflow */
1579 NULL, /* special_function */
1580 "R_MIPS_GNU_VTINHERIT", /* name */
1581 FALSE, /* partial_inplace */
1582 0, /* src_mask */
1583 0, /* dst_mask */
1584 FALSE); /* pcrel_offset */
1585
1586 /* GNU extension to record C++ vtable member usage */
1587 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1588 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1589 0, /* rightshift */
1590 2, /* size (0 = byte, 1 = short, 2 = long) */
1591 0, /* bitsize */
1592 FALSE, /* pc_relative */
1593 0, /* bitpos */
1594 complain_overflow_dont, /* complain_on_overflow */
1595 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1596 "R_MIPS_GNU_VTENTRY", /* name */
1597 FALSE, /* partial_inplace */
1598 0, /* src_mask */
1599 0, /* dst_mask */
1600 FALSE); /* pcrel_offset */
1601 \f
1602 /* 16 bit offset for pc-relative branches. */
1603 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1604 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1605 2, /* rightshift */
1606 2, /* size (0 = byte, 1 = short, 2 = long) */
1607 16, /* bitsize */
1608 TRUE, /* pc_relative */
1609 0, /* bitpos */
1610 complain_overflow_signed, /* complain_on_overflow */
1611 _bfd_mips_elf_generic_reloc, /* special_function */
1612 "R_MIPS_GNU_REL16_S2", /* name */
1613 TRUE, /* partial_inplace */
1614 0x0000ffff, /* src_mask */
1615 0x0000ffff, /* dst_mask */
1616 TRUE); /* pcrel_offset */
1617
1618 /* 16 bit offset for pc-relative branches. */
1619 static reloc_howto_type elf_mips_gnu_rela16_s2 =
1620 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1621 2, /* rightshift */
1622 2, /* size (0 = byte, 1 = short, 2 = long) */
1623 16, /* bitsize */
1624 TRUE, /* pc_relative */
1625 0, /* bitpos */
1626 complain_overflow_signed, /* complain_on_overflow */
1627 _bfd_mips_elf_generic_reloc, /* special_function */
1628 "R_MIPS_GNU_REL16_S2", /* name */
1629 FALSE, /* partial_inplace */
1630 0, /* src_mask */
1631 0x0000ffff, /* dst_mask */
1632 TRUE); /* pcrel_offset */
1633 \f
1634 /* Swap in a MIPS 64-bit Rel reloc. */
1635
1636 static void
1637 mips_elf64_swap_reloc_in (bfd *abfd, const Elf64_Mips_External_Rel *src,
1638 Elf64_Mips_Internal_Rela *dst)
1639 {
1640 dst->r_offset = H_GET_64 (abfd, src->r_offset);
1641 dst->r_sym = H_GET_32 (abfd, src->r_sym);
1642 dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
1643 dst->r_type3 = H_GET_8 (abfd, src->r_type3);
1644 dst->r_type2 = H_GET_8 (abfd, src->r_type2);
1645 dst->r_type = H_GET_8 (abfd, src->r_type);
1646 dst->r_addend = 0;
1647 }
1648
1649 /* Swap in a MIPS 64-bit Rela reloc. */
1650
1651 static void
1652 mips_elf64_swap_reloca_in (bfd *abfd, const Elf64_Mips_External_Rela *src,
1653 Elf64_Mips_Internal_Rela *dst)
1654 {
1655 dst->r_offset = H_GET_64 (abfd, src->r_offset);
1656 dst->r_sym = H_GET_32 (abfd, src->r_sym);
1657 dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
1658 dst->r_type3 = H_GET_8 (abfd, src->r_type3);
1659 dst->r_type2 = H_GET_8 (abfd, src->r_type2);
1660 dst->r_type = H_GET_8 (abfd, src->r_type);
1661 dst->r_addend = H_GET_S64 (abfd, src->r_addend);
1662 }
1663
1664 /* Swap out a MIPS 64-bit Rel reloc. */
1665
1666 static void
1667 mips_elf64_swap_reloc_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src,
1668 Elf64_Mips_External_Rel *dst)
1669 {
1670 H_PUT_64 (abfd, src->r_offset, dst->r_offset);
1671 H_PUT_32 (abfd, src->r_sym, dst->r_sym);
1672 H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
1673 H_PUT_8 (abfd, src->r_type3, dst->r_type3);
1674 H_PUT_8 (abfd, src->r_type2, dst->r_type2);
1675 H_PUT_8 (abfd, src->r_type, dst->r_type);
1676 }
1677
1678 /* Swap out a MIPS 64-bit Rela reloc. */
1679
1680 static void
1681 mips_elf64_swap_reloca_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src,
1682 Elf64_Mips_External_Rela *dst)
1683 {
1684 H_PUT_64 (abfd, src->r_offset, dst->r_offset);
1685 H_PUT_32 (abfd, src->r_sym, dst->r_sym);
1686 H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
1687 H_PUT_8 (abfd, src->r_type3, dst->r_type3);
1688 H_PUT_8 (abfd, src->r_type2, dst->r_type2);
1689 H_PUT_8 (abfd, src->r_type, dst->r_type);
1690 H_PUT_S64 (abfd, src->r_addend, dst->r_addend);
1691 }
1692
1693 /* Swap in a MIPS 64-bit Rel reloc. */
1694
1695 static void
1696 mips_elf64_be_swap_reloc_in (bfd *abfd, const bfd_byte *src,
1697 Elf_Internal_Rela *dst)
1698 {
1699 Elf64_Mips_Internal_Rela mirel;
1700
1701 mips_elf64_swap_reloc_in (abfd,
1702 (const Elf64_Mips_External_Rel *) src,
1703 &mirel);
1704
1705 dst[0].r_offset = mirel.r_offset;
1706 dst[0].r_info = ELF64_R_INFO (mirel.r_sym, mirel.r_type);
1707 dst[0].r_addend = 0;
1708 dst[1].r_offset = mirel.r_offset;
1709 dst[1].r_info = ELF64_R_INFO (mirel.r_ssym, mirel.r_type2);
1710 dst[1].r_addend = 0;
1711 dst[2].r_offset = mirel.r_offset;
1712 dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirel.r_type3);
1713 dst[2].r_addend = 0;
1714 }
1715
1716 /* Swap in a MIPS 64-bit Rela reloc. */
1717
1718 static void
1719 mips_elf64_be_swap_reloca_in (bfd *abfd, const bfd_byte *src,
1720 Elf_Internal_Rela *dst)
1721 {
1722 Elf64_Mips_Internal_Rela mirela;
1723
1724 mips_elf64_swap_reloca_in (abfd,
1725 (const Elf64_Mips_External_Rela *) src,
1726 &mirela);
1727
1728 dst[0].r_offset = mirela.r_offset;
1729 dst[0].r_info = ELF64_R_INFO (mirela.r_sym, mirela.r_type);
1730 dst[0].r_addend = mirela.r_addend;
1731 dst[1].r_offset = mirela.r_offset;
1732 dst[1].r_info = ELF64_R_INFO (mirela.r_ssym, mirela.r_type2);
1733 dst[1].r_addend = 0;
1734 dst[2].r_offset = mirela.r_offset;
1735 dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirela.r_type3);
1736 dst[2].r_addend = 0;
1737 }
1738
1739 /* Swap out a MIPS 64-bit Rel reloc. */
1740
1741 static void
1742 mips_elf64_be_swap_reloc_out (bfd *abfd, const Elf_Internal_Rela *src,
1743 bfd_byte *dst)
1744 {
1745 Elf64_Mips_Internal_Rela mirel;
1746
1747 mirel.r_offset = src[0].r_offset;
1748 BFD_ASSERT(src[0].r_offset == src[1].r_offset);
1749
1750 mirel.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
1751 mirel.r_sym = ELF64_R_SYM (src[0].r_info);
1752 mirel.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info);
1753 mirel.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
1754 mirel.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info);
1755
1756 mips_elf64_swap_reloc_out (abfd, &mirel,
1757 (Elf64_Mips_External_Rel *) dst);
1758 }
1759
1760 /* Swap out a MIPS 64-bit Rela reloc. */
1761
1762 static void
1763 mips_elf64_be_swap_reloca_out (bfd *abfd, const Elf_Internal_Rela *src,
1764 bfd_byte *dst)
1765 {
1766 Elf64_Mips_Internal_Rela mirela;
1767
1768 mirela.r_offset = src[0].r_offset;
1769 BFD_ASSERT(src[0].r_offset == src[1].r_offset);
1770 BFD_ASSERT(src[0].r_offset == src[2].r_offset);
1771
1772 mirela.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
1773 mirela.r_sym = ELF64_R_SYM (src[0].r_info);
1774 mirela.r_addend = src[0].r_addend;
1775 BFD_ASSERT(src[1].r_addend == 0);
1776 BFD_ASSERT(src[2].r_addend == 0);
1777
1778 mirela.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info);
1779 mirela.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
1780 mirela.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info);
1781
1782 mips_elf64_swap_reloca_out (abfd, &mirela,
1783 (Elf64_Mips_External_Rela *) dst);
1784 }
1785 \f
1786 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1787 dangerous relocation. */
1788
1789 static bfd_boolean
1790 mips_elf64_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1791 {
1792 unsigned int count;
1793 asymbol **sym;
1794 unsigned int i;
1795
1796 /* If we've already figured out what GP will be, just return it. */
1797 *pgp = _bfd_get_gp_value (output_bfd);
1798 if (*pgp)
1799 return TRUE;
1800
1801 count = bfd_get_symcount (output_bfd);
1802 sym = bfd_get_outsymbols (output_bfd);
1803
1804 /* The linker script will have created a symbol named `_gp' with the
1805 appropriate value. */
1806 if (sym == NULL)
1807 i = count;
1808 else
1809 {
1810 for (i = 0; i < count; i++, sym++)
1811 {
1812 register const char *name;
1813
1814 name = bfd_asymbol_name (*sym);
1815 if (*name == '_' && strcmp (name, "_gp") == 0)
1816 {
1817 *pgp = bfd_asymbol_value (*sym);
1818 _bfd_set_gp_value (output_bfd, *pgp);
1819 break;
1820 }
1821 }
1822 }
1823
1824 if (i >= count)
1825 {
1826 /* Only get the error once. */
1827 *pgp = 4;
1828 _bfd_set_gp_value (output_bfd, *pgp);
1829 return FALSE;
1830 }
1831
1832 return TRUE;
1833 }
1834
1835 /* We have to figure out the gp value, so that we can adjust the
1836 symbol value correctly. We look up the symbol _gp in the output
1837 BFD. If we can't find it, we're stuck. We cache it in the ELF
1838 target data. We don't need to adjust the symbol value for an
1839 external symbol if we are producing relocatable output. */
1840
1841 static bfd_reloc_status_type
1842 mips_elf64_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1843 char **error_message, bfd_vma *pgp)
1844 {
1845 if (bfd_is_und_section (symbol->section)
1846 && ! relocatable)
1847 {
1848 *pgp = 0;
1849 return bfd_reloc_undefined;
1850 }
1851
1852 *pgp = _bfd_get_gp_value (output_bfd);
1853 if (*pgp == 0
1854 && (! relocatable
1855 || (symbol->flags & BSF_SECTION_SYM) != 0))
1856 {
1857 if (relocatable)
1858 {
1859 /* Make up a value. */
1860 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
1861 _bfd_set_gp_value (output_bfd, *pgp);
1862 }
1863 else if (!mips_elf64_assign_gp (output_bfd, pgp))
1864 {
1865 *error_message =
1866 (char *) _("GP relative relocation when _gp not defined");
1867 return bfd_reloc_dangerous;
1868 }
1869 }
1870
1871 return bfd_reloc_ok;
1872 }
1873
1874 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1875 become the offset from the gp register. */
1876
1877 static bfd_reloc_status_type
1878 mips_elf64_gprel16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1879 void *data, asection *input_section, bfd *output_bfd,
1880 char **error_message)
1881 {
1882 bfd_boolean relocatable;
1883 bfd_reloc_status_type ret;
1884 bfd_vma gp;
1885
1886 /* If we're relocating, and this is an external symbol, we don't want
1887 to change anything. */
1888 if (output_bfd != NULL
1889 && (symbol->flags & BSF_SECTION_SYM) == 0
1890 && (symbol->flags & BSF_LOCAL) != 0)
1891 {
1892 reloc_entry->address += input_section->output_offset;
1893 return bfd_reloc_ok;
1894 }
1895
1896 if (output_bfd != NULL)
1897 relocatable = TRUE;
1898 else
1899 {
1900 relocatable = FALSE;
1901 output_bfd = symbol->section->output_section->owner;
1902 }
1903
1904 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
1905 &gp);
1906 if (ret != bfd_reloc_ok)
1907 return ret;
1908
1909 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1910 input_section, relocatable,
1911 data, gp);
1912 }
1913
1914 /* Do a R_MIPS_LITERAL relocation. */
1915
1916 static bfd_reloc_status_type
1917 mips_elf64_literal_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1918 void *data, asection *input_section, bfd *output_bfd,
1919 char **error_message)
1920 {
1921 bfd_boolean relocatable;
1922 bfd_reloc_status_type ret;
1923 bfd_vma gp;
1924
1925 /* R_MIPS_LITERAL relocations are defined for local symbols only. */
1926 if (output_bfd != NULL
1927 && (symbol->flags & BSF_SECTION_SYM) == 0
1928 && (symbol->flags & BSF_LOCAL) != 0)
1929 {
1930 *error_message = (char *)
1931 _("literal relocation occurs for an external symbol");
1932 return bfd_reloc_outofrange;
1933 }
1934
1935 /* FIXME: The entries in the .lit8 and .lit4 sections should be merged. */
1936 if (output_bfd != NULL)
1937 relocatable = TRUE;
1938 else
1939 {
1940 relocatable = FALSE;
1941 output_bfd = symbol->section->output_section->owner;
1942 }
1943
1944 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
1945 &gp);
1946 if (ret != bfd_reloc_ok)
1947 return ret;
1948
1949 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1950 input_section, relocatable,
1951 data, gp);
1952 }
1953
1954 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
1955 become the offset from the gp register. */
1956
1957 static bfd_reloc_status_type
1958 mips_elf64_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1959 void *data, asection *input_section, bfd *output_bfd,
1960 char **error_message)
1961 {
1962 bfd_boolean relocatable;
1963 bfd_reloc_status_type ret;
1964 bfd_vma gp;
1965 bfd_vma relocation;
1966 bfd_vma val;
1967
1968 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1969 if (output_bfd != NULL
1970 && (symbol->flags & BSF_SECTION_SYM) == 0
1971 && (symbol->flags & BSF_LOCAL) != 0)
1972 {
1973 *error_message = (char *)
1974 _("32bits gp relative relocation occurs for an external symbol");
1975 return bfd_reloc_outofrange;
1976 }
1977
1978 if (output_bfd != NULL)
1979 relocatable = TRUE;
1980 else
1981 {
1982 relocatable = FALSE;
1983 output_bfd = symbol->section->output_section->owner;
1984 }
1985
1986 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable,
1987 error_message, &gp);
1988 if (ret != bfd_reloc_ok)
1989 return ret;
1990
1991 if (bfd_is_com_section (symbol->section))
1992 relocation = 0;
1993 else
1994 relocation = symbol->value;
1995
1996 relocation += symbol->section->output_section->vma;
1997 relocation += symbol->section->output_offset;
1998
1999 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2000 return bfd_reloc_outofrange;
2001
2002 /* Set val to the offset into the section or symbol. */
2003 val = reloc_entry->addend;
2004
2005 if (reloc_entry->howto->partial_inplace)
2006 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2007
2008 /* Adjust val for the final section location and GP value. If we
2009 are producing relocatable output, we don't want to do this for
2010 an external symbol. */
2011 if (! relocatable
2012 || (symbol->flags & BSF_SECTION_SYM) != 0)
2013 val += relocation - gp;
2014
2015 if (reloc_entry->howto->partial_inplace)
2016 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
2017 else
2018 reloc_entry->addend = val;
2019
2020 if (relocatable)
2021 reloc_entry->address += input_section->output_offset;
2022
2023 return bfd_reloc_ok;
2024 }
2025
2026 /* Do a R_MIPS_SHIFT6 relocation. The MSB of the shift is stored at bit 2,
2027 the rest is at bits 6-10. The bitpos already got right by the howto. */
2028
2029 static bfd_reloc_status_type
2030 mips_elf64_shift6_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2031 void *data, asection *input_section, bfd *output_bfd,
2032 char **error_message)
2033 {
2034 if (reloc_entry->howto->partial_inplace)
2035 {
2036 reloc_entry->addend = ((reloc_entry->addend & 0x00007c0)
2037 | (reloc_entry->addend & 0x00000800) >> 9);
2038 }
2039
2040 return _bfd_mips_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2041 input_section, output_bfd,
2042 error_message);
2043 }
2044
2045 /* Handle a mips16 GP relative reloc. */
2046
2047 static bfd_reloc_status_type
2048 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2049 void *data, asection *input_section, bfd *output_bfd,
2050 char **error_message)
2051 {
2052 bfd_boolean relocatable;
2053 bfd_reloc_status_type ret;
2054 bfd_byte *location;
2055 bfd_vma gp;
2056
2057 /* If we're relocating, and this is an external symbol, we don't want
2058 to change anything. */
2059 if (output_bfd != NULL
2060 && (symbol->flags & BSF_SECTION_SYM) == 0
2061 && (symbol->flags & BSF_LOCAL) != 0)
2062 {
2063 reloc_entry->address += input_section->output_offset;
2064 return bfd_reloc_ok;
2065 }
2066
2067 if (output_bfd != NULL)
2068 relocatable = TRUE;
2069 else
2070 {
2071 relocatable = FALSE;
2072 output_bfd = symbol->section->output_section->owner;
2073 }
2074
2075 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
2076 &gp);
2077 if (ret != bfd_reloc_ok)
2078 return ret;
2079
2080 location = (bfd_byte *) data + reloc_entry->address;
2081 _bfd_mips16_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
2082 location);
2083 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
2084 input_section, relocatable,
2085 data, gp);
2086 _bfd_mips16_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
2087 location);
2088
2089 return ret;
2090 }
2091 \f
2092 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
2093
2094 struct elf_reloc_map {
2095 bfd_reloc_code_real_type bfd_val;
2096 enum elf_mips_reloc_type elf_val;
2097 };
2098
2099 static const struct elf_reloc_map mips_reloc_map[] =
2100 {
2101 { BFD_RELOC_NONE, R_MIPS_NONE },
2102 { BFD_RELOC_16, R_MIPS_16 },
2103 { BFD_RELOC_32, R_MIPS_32 },
2104 /* There is no BFD reloc for R_MIPS_REL32. */
2105 { BFD_RELOC_64, R_MIPS_64 },
2106 { BFD_RELOC_CTOR, R_MIPS_64 },
2107 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
2108 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
2109 { BFD_RELOC_LO16, R_MIPS_LO16 },
2110 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
2111 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
2112 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
2113 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
2114 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
2115 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
2116 { BFD_RELOC_MIPS_SHIFT5, R_MIPS_SHIFT5 },
2117 { BFD_RELOC_MIPS_SHIFT6, R_MIPS_SHIFT6 },
2118 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
2119 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
2120 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
2121 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
2122 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
2123 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
2124 { BFD_RELOC_MIPS_INSERT_A, R_MIPS_INSERT_A },
2125 { BFD_RELOC_MIPS_INSERT_B, R_MIPS_INSERT_B },
2126 { BFD_RELOC_MIPS_DELETE, R_MIPS_DELETE },
2127 { BFD_RELOC_MIPS_HIGHEST, R_MIPS_HIGHEST },
2128 { BFD_RELOC_MIPS_HIGHER, R_MIPS_HIGHER },
2129 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
2130 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
2131 { BFD_RELOC_MIPS_SCN_DISP, R_MIPS_SCN_DISP },
2132 { BFD_RELOC_MIPS_REL16, R_MIPS_REL16 },
2133 /* Use of R_MIPS_ADD_IMMEDIATE and R_MIPS_PJUMP is deprecated. */
2134 { BFD_RELOC_MIPS_RELGOT, R_MIPS_RELGOT },
2135 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
2136 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
2137 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
2138 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
2139 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
2140 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
2141 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
2142 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
2143 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
2144 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
2145 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
2146 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
2147 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
2148 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
2149 };
2150
2151 static const struct elf_reloc_map mips16_reloc_map[] =
2152 {
2153 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
2154 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
2155 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
2156 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
2157 };
2158
2159 /* Given a BFD reloc type, return a howto structure. */
2160
2161 static reloc_howto_type *
2162 bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2163 bfd_reloc_code_real_type code)
2164 {
2165 unsigned int i;
2166 /* FIXME: We default to RELA here instead of choosing the right
2167 relocation variant. */
2168 reloc_howto_type *howto_table = mips_elf64_howto_table_rela;
2169 reloc_howto_type *howto16_table = mips16_elf64_howto_table_rela;
2170
2171 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
2172 i++)
2173 {
2174 if (mips_reloc_map[i].bfd_val == code)
2175 return &howto_table[(int) mips_reloc_map[i].elf_val];
2176 }
2177
2178 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
2179 i++)
2180 {
2181 if (mips16_reloc_map[i].bfd_val == code)
2182 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
2183 }
2184
2185 switch (code)
2186 {
2187 case BFD_RELOC_VTABLE_INHERIT:
2188 return &elf_mips_gnu_vtinherit_howto;
2189 case BFD_RELOC_VTABLE_ENTRY:
2190 return &elf_mips_gnu_vtentry_howto;
2191 default:
2192 bfd_set_error (bfd_error_bad_value);
2193 return NULL;
2194 }
2195 }
2196
2197 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2198
2199 static reloc_howto_type *
2200 mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p)
2201 {
2202 switch (r_type)
2203 {
2204 case R_MIPS_GNU_VTINHERIT:
2205 return &elf_mips_gnu_vtinherit_howto;
2206 case R_MIPS_GNU_VTENTRY:
2207 return &elf_mips_gnu_vtentry_howto;
2208 case R_MIPS_GNU_REL16_S2:
2209 if (rela_p)
2210 return &elf_mips_gnu_rela16_s2;
2211 else
2212 return &elf_mips_gnu_rel16_s2;
2213 default:
2214 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
2215 {
2216 if (rela_p)
2217 return &mips16_elf64_howto_table_rela[r_type - R_MIPS16_min];
2218 else
2219 return &mips16_elf64_howto_table_rel[r_type - R_MIPS16_min];
2220 }
2221 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2222 if (rela_p)
2223 return &mips_elf64_howto_table_rela[r_type];
2224 else
2225 return &mips_elf64_howto_table_rel[r_type];
2226 break;
2227 }
2228 }
2229
2230 /* Prevent relocation handling by bfd for MIPS ELF64. */
2231
2232 static void
2233 mips_elf64_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2234 arelent *cache_ptr ATTRIBUTE_UNUSED,
2235 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
2236 {
2237 BFD_ASSERT (0);
2238 }
2239
2240 static void
2241 mips_elf64_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2242 arelent *cache_ptr ATTRIBUTE_UNUSED,
2243 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
2244 {
2245 BFD_ASSERT (0);
2246 }
2247
2248 /* Since each entry in an SHT_REL or SHT_RELA section can represent up
2249 to three relocs, we must tell the user to allocate more space. */
2250
2251 static long
2252 mips_elf64_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
2253 {
2254 return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
2255 }
2256
2257 static long
2258 mips_elf64_get_dynamic_reloc_upper_bound (bfd *abfd)
2259 {
2260 return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 3;
2261 }
2262
2263 /* We must also copy more relocations than the corresponding functions
2264 in elf.c would, so the two following functions are slightly
2265 modified from elf.c, that multiply the external relocation count by
2266 3 to obtain the internal relocation count. */
2267
2268 static long
2269 mips_elf64_canonicalize_reloc (bfd *abfd, sec_ptr section,
2270 arelent **relptr, asymbol **symbols)
2271 {
2272 arelent *tblptr;
2273 unsigned int i;
2274 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2275
2276 if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE))
2277 return -1;
2278
2279 tblptr = section->relocation;
2280 for (i = 0; i < section->reloc_count * 3; i++)
2281 *relptr++ = tblptr++;
2282
2283 *relptr = NULL;
2284
2285 return section->reloc_count * 3;
2286 }
2287
2288 static long
2289 mips_elf64_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage,
2290 asymbol **syms)
2291 {
2292 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2293 asection *s;
2294 long ret;
2295
2296 if (elf_dynsymtab (abfd) == 0)
2297 {
2298 bfd_set_error (bfd_error_invalid_operation);
2299 return -1;
2300 }
2301
2302 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2303 ret = 0;
2304 for (s = abfd->sections; s != NULL; s = s->next)
2305 {
2306 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
2307 && (elf_section_data (s)->this_hdr.sh_type == SHT_REL
2308 || elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
2309 {
2310 arelent *p;
2311 long count, i;
2312
2313 if (! (*slurp_relocs) (abfd, s, syms, TRUE))
2314 return -1;
2315 count = s->size / elf_section_data (s)->this_hdr.sh_entsize * 3;
2316 p = s->relocation;
2317 for (i = 0; i < count; i++)
2318 *storage++ = p++;
2319 ret += count;
2320 }
2321 }
2322
2323 *storage = NULL;
2324
2325 return ret;
2326 }
2327
2328 /* Read the relocations from one reloc section. This is mostly copied
2329 from elfcode.h, except for the changes to expand one external
2330 relocation to 3 internal ones. We must unfortunately set
2331 reloc_count to the number of external relocations, because a lot of
2332 generic code seems to depend on this. */
2333
2334 static bfd_boolean
2335 mips_elf64_slurp_one_reloc_table (bfd *abfd, asection *asect,
2336 Elf_Internal_Shdr *rel_hdr,
2337 bfd_size_type reloc_count,
2338 arelent *relents, asymbol **symbols,
2339 bfd_boolean dynamic)
2340 {
2341 void *allocated;
2342 bfd_byte *native_relocs;
2343 arelent *relent;
2344 bfd_vma i;
2345 int entsize;
2346 bfd_boolean rela_p;
2347
2348 allocated = bfd_malloc (rel_hdr->sh_size);
2349 if (allocated == NULL)
2350 return FALSE;
2351
2352 if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
2353 || (bfd_bread (allocated, rel_hdr->sh_size, abfd)
2354 != rel_hdr->sh_size))
2355 goto error_return;
2356
2357 native_relocs = allocated;
2358
2359 entsize = rel_hdr->sh_entsize;
2360 BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel)
2361 || entsize == sizeof (Elf64_Mips_External_Rela));
2362
2363 if (entsize == sizeof (Elf64_Mips_External_Rel))
2364 rela_p = FALSE;
2365 else
2366 rela_p = TRUE;
2367
2368 for (i = 0, relent = relents;
2369 i < reloc_count;
2370 i++, native_relocs += entsize)
2371 {
2372 Elf64_Mips_Internal_Rela rela;
2373 bfd_boolean used_sym, used_ssym;
2374 int ir;
2375
2376 if (entsize == sizeof (Elf64_Mips_External_Rela))
2377 mips_elf64_swap_reloca_in (abfd,
2378 (Elf64_Mips_External_Rela *) native_relocs,
2379 &rela);
2380 else
2381 mips_elf64_swap_reloc_in (abfd,
2382 (Elf64_Mips_External_Rel *) native_relocs,
2383 &rela);
2384
2385 /* Each entry represents exactly three actual relocations. */
2386
2387 used_sym = FALSE;
2388 used_ssym = FALSE;
2389 for (ir = 0; ir < 3; ir++)
2390 {
2391 enum elf_mips_reloc_type type;
2392
2393 switch (ir)
2394 {
2395 default:
2396 abort ();
2397 case 0:
2398 type = (enum elf_mips_reloc_type) rela.r_type;
2399 break;
2400 case 1:
2401 type = (enum elf_mips_reloc_type) rela.r_type2;
2402 break;
2403 case 2:
2404 type = (enum elf_mips_reloc_type) rela.r_type3;
2405 break;
2406 }
2407
2408 /* Some types require symbols, whereas some do not. */
2409 switch (type)
2410 {
2411 case R_MIPS_NONE:
2412 case R_MIPS_LITERAL:
2413 case R_MIPS_INSERT_A:
2414 case R_MIPS_INSERT_B:
2415 case R_MIPS_DELETE:
2416 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2417 break;
2418
2419 default:
2420 if (! used_sym)
2421 {
2422 if (rela.r_sym == 0)
2423 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2424 else
2425 {
2426 asymbol **ps, *s;
2427
2428 ps = symbols + rela.r_sym - 1;
2429 s = *ps;
2430 if ((s->flags & BSF_SECTION_SYM) == 0)
2431 relent->sym_ptr_ptr = ps;
2432 else
2433 relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
2434 }
2435
2436 used_sym = TRUE;
2437 }
2438 else if (! used_ssym)
2439 {
2440 switch (rela.r_ssym)
2441 {
2442 case RSS_UNDEF:
2443 relent->sym_ptr_ptr =
2444 bfd_abs_section_ptr->symbol_ptr_ptr;
2445 break;
2446
2447 case RSS_GP:
2448 case RSS_GP0:
2449 case RSS_LOC:
2450 /* FIXME: I think these need to be handled using
2451 special howto structures. */
2452 BFD_ASSERT (0);
2453 break;
2454
2455 default:
2456 BFD_ASSERT (0);
2457 break;
2458 }
2459
2460 used_ssym = TRUE;
2461 }
2462 else
2463 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2464
2465 break;
2466 }
2467
2468 /* The address of an ELF reloc is section relative for an
2469 object file, and absolute for an executable file or
2470 shared library. The address of a BFD reloc is always
2471 section relative. */
2472 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic)
2473 relent->address = rela.r_offset;
2474 else
2475 relent->address = rela.r_offset - asect->vma;
2476
2477 relent->addend = rela.r_addend;
2478
2479 relent->howto = mips_elf64_rtype_to_howto (type, rela_p);
2480
2481 ++relent;
2482 }
2483 }
2484
2485 asect->reloc_count += (relent - relents) / 3;
2486
2487 if (allocated != NULL)
2488 free (allocated);
2489
2490 return TRUE;
2491
2492 error_return:
2493 if (allocated != NULL)
2494 free (allocated);
2495 return FALSE;
2496 }
2497
2498 /* Read the relocations. On Irix 6, there can be two reloc sections
2499 associated with a single data section. This is copied from
2500 elfcode.h as well, with changes as small as accounting for 3
2501 internal relocs per external reloc and resetting reloc_count to
2502 zero before processing the relocs of a section. */
2503
2504 static bfd_boolean
2505 mips_elf64_slurp_reloc_table (bfd *abfd, asection *asect,
2506 asymbol **symbols, bfd_boolean dynamic)
2507 {
2508 struct bfd_elf_section_data * const d = elf_section_data (asect);
2509 Elf_Internal_Shdr *rel_hdr;
2510 Elf_Internal_Shdr *rel_hdr2;
2511 bfd_size_type reloc_count;
2512 bfd_size_type reloc_count2;
2513 arelent *relents;
2514 bfd_size_type amt;
2515
2516 if (asect->relocation != NULL)
2517 return TRUE;
2518
2519 if (! dynamic)
2520 {
2521 if ((asect->flags & SEC_RELOC) == 0
2522 || asect->reloc_count == 0)
2523 return TRUE;
2524
2525 rel_hdr = &d->rel_hdr;
2526 reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
2527 rel_hdr2 = d->rel_hdr2;
2528 reloc_count2 = (rel_hdr2 ? NUM_SHDR_ENTRIES (rel_hdr2) : 0);
2529
2530 BFD_ASSERT (asect->reloc_count == reloc_count + reloc_count2);
2531 BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset
2532 || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset));
2533
2534 }
2535 else
2536 {
2537 /* Note that ASECT->RELOC_COUNT tends not to be accurate in this
2538 case because relocations against this section may use the
2539 dynamic symbol table, and in that case bfd_section_from_shdr
2540 in elf.c does not update the RELOC_COUNT. */
2541 if (asect->size == 0)
2542 return TRUE;
2543
2544 rel_hdr = &d->this_hdr;
2545 reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
2546 rel_hdr2 = NULL;
2547 reloc_count2 = 0;
2548 }
2549
2550 /* Allocate space for 3 arelent structures for each Rel structure. */
2551 amt = (reloc_count + reloc_count2) * 3 * sizeof (arelent);
2552 relents = bfd_alloc (abfd, amt);
2553 if (relents == NULL)
2554 return FALSE;
2555
2556 /* The slurp_one_reloc_table routine increments reloc_count. */
2557 asect->reloc_count = 0;
2558
2559 if (! mips_elf64_slurp_one_reloc_table (abfd, asect,
2560 rel_hdr, reloc_count,
2561 relents,
2562 symbols, dynamic))
2563 return FALSE;
2564 if (d->rel_hdr2 != NULL)
2565 {
2566 if (! mips_elf64_slurp_one_reloc_table (abfd, asect,
2567 rel_hdr2, reloc_count2,
2568 relents + reloc_count * 3,
2569 symbols, dynamic))
2570 return FALSE;
2571 }
2572
2573 asect->relocation = relents;
2574 return TRUE;
2575 }
2576
2577 /* Write out the relocations. */
2578
2579 static void
2580 mips_elf64_write_relocs (bfd *abfd, asection *sec, void *data)
2581 {
2582 bfd_boolean *failedp = data;
2583 int count;
2584 Elf_Internal_Shdr *rel_hdr;
2585 unsigned int idx;
2586
2587 /* If we have already failed, don't do anything. */
2588 if (*failedp)
2589 return;
2590
2591 if ((sec->flags & SEC_RELOC) == 0)
2592 return;
2593
2594 /* The linker backend writes the relocs out itself, and sets the
2595 reloc_count field to zero to inhibit writing them here. Also,
2596 sometimes the SEC_RELOC flag gets set even when there aren't any
2597 relocs. */
2598 if (sec->reloc_count == 0)
2599 return;
2600
2601 /* We can combine up to three relocs that refer to the same address
2602 if the latter relocs have no associated symbol. */
2603 count = 0;
2604 for (idx = 0; idx < sec->reloc_count; idx++)
2605 {
2606 bfd_vma addr;
2607 unsigned int i;
2608
2609 ++count;
2610
2611 addr = sec->orelocation[idx]->address;
2612 for (i = 0; i < 2; i++)
2613 {
2614 arelent *r;
2615
2616 if (idx + 1 >= sec->reloc_count)
2617 break;
2618 r = sec->orelocation[idx + 1];
2619 if (r->address != addr
2620 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2621 || (*r->sym_ptr_ptr)->value != 0)
2622 break;
2623
2624 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2625
2626 ++idx;
2627 }
2628 }
2629
2630 rel_hdr = &elf_section_data (sec)->rel_hdr;
2631
2632 /* Do the actual relocation. */
2633
2634 if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rel))
2635 mips_elf64_write_rel (abfd, sec, rel_hdr, &count, data);
2636 else if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rela))
2637 mips_elf64_write_rela (abfd, sec, rel_hdr, &count, data);
2638 else
2639 BFD_ASSERT (0);
2640 }
2641
2642 static void
2643 mips_elf64_write_rel (bfd *abfd, asection *sec,
2644 Elf_Internal_Shdr *rel_hdr,
2645 int *count, void *data)
2646 {
2647 bfd_boolean *failedp = data;
2648 Elf64_Mips_External_Rel *ext_rel;
2649 unsigned int idx;
2650 asymbol *last_sym = 0;
2651 int last_sym_idx = 0;
2652
2653 rel_hdr->sh_size = rel_hdr->sh_entsize * *count;
2654 rel_hdr->contents = bfd_alloc (abfd, rel_hdr->sh_size);
2655 if (rel_hdr->contents == NULL)
2656 {
2657 *failedp = TRUE;
2658 return;
2659 }
2660
2661 ext_rel = (Elf64_Mips_External_Rel *) rel_hdr->contents;
2662 for (idx = 0; idx < sec->reloc_count; idx++, ext_rel++)
2663 {
2664 arelent *ptr;
2665 Elf64_Mips_Internal_Rela int_rel;
2666 asymbol *sym;
2667 int n;
2668 unsigned int i;
2669
2670 ptr = sec->orelocation[idx];
2671
2672 /* The address of an ELF reloc is section relative for an object
2673 file, and absolute for an executable file or shared library.
2674 The address of a BFD reloc is always section relative. */
2675 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
2676 int_rel.r_offset = ptr->address;
2677 else
2678 int_rel.r_offset = ptr->address + sec->vma;
2679
2680 sym = *ptr->sym_ptr_ptr;
2681 if (sym == last_sym)
2682 n = last_sym_idx;
2683 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
2684 n = STN_UNDEF;
2685 else
2686 {
2687 last_sym = sym;
2688 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
2689 if (n < 0)
2690 {
2691 *failedp = TRUE;
2692 return;
2693 }
2694 last_sym_idx = n;
2695 }
2696
2697 int_rel.r_sym = n;
2698 int_rel.r_ssym = RSS_UNDEF;
2699
2700 if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
2701 && ! _bfd_elf_validate_reloc (abfd, ptr))
2702 {
2703 *failedp = TRUE;
2704 return;
2705 }
2706
2707 int_rel.r_type = ptr->howto->type;
2708 int_rel.r_type2 = (int) R_MIPS_NONE;
2709 int_rel.r_type3 = (int) R_MIPS_NONE;
2710
2711 for (i = 0; i < 2; i++)
2712 {
2713 arelent *r;
2714
2715 if (idx + 1 >= sec->reloc_count)
2716 break;
2717 r = sec->orelocation[idx + 1];
2718 if (r->address != ptr->address
2719 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2720 || (*r->sym_ptr_ptr)->value != 0)
2721 break;
2722
2723 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2724
2725 if (i == 0)
2726 int_rel.r_type2 = r->howto->type;
2727 else
2728 int_rel.r_type3 = r->howto->type;
2729
2730 ++idx;
2731 }
2732
2733 mips_elf64_swap_reloc_out (abfd, &int_rel, ext_rel);
2734 }
2735
2736 BFD_ASSERT (ext_rel - (Elf64_Mips_External_Rel *) rel_hdr->contents
2737 == *count);
2738 }
2739
2740 static void
2741 mips_elf64_write_rela (bfd *abfd, asection *sec,
2742 Elf_Internal_Shdr *rela_hdr,
2743 int *count, void *data)
2744 {
2745 bfd_boolean *failedp = data;
2746 Elf64_Mips_External_Rela *ext_rela;
2747 unsigned int idx;
2748 asymbol *last_sym = 0;
2749 int last_sym_idx = 0;
2750
2751 rela_hdr->sh_size = rela_hdr->sh_entsize * *count;
2752 rela_hdr->contents = bfd_alloc (abfd, rela_hdr->sh_size);
2753 if (rela_hdr->contents == NULL)
2754 {
2755 *failedp = TRUE;
2756 return;
2757 }
2758
2759 ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
2760 for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
2761 {
2762 arelent *ptr;
2763 Elf64_Mips_Internal_Rela int_rela;
2764 asymbol *sym;
2765 int n;
2766 unsigned int i;
2767
2768 ptr = sec->orelocation[idx];
2769
2770 /* The address of an ELF reloc is section relative for an object
2771 file, and absolute for an executable file or shared library.
2772 The address of a BFD reloc is always section relative. */
2773 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
2774 int_rela.r_offset = ptr->address;
2775 else
2776 int_rela.r_offset = ptr->address + sec->vma;
2777
2778 sym = *ptr->sym_ptr_ptr;
2779 if (sym == last_sym)
2780 n = last_sym_idx;
2781 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
2782 n = STN_UNDEF;
2783 else
2784 {
2785 last_sym = sym;
2786 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
2787 if (n < 0)
2788 {
2789 *failedp = TRUE;
2790 return;
2791 }
2792 last_sym_idx = n;
2793 }
2794
2795 int_rela.r_sym = n;
2796 int_rela.r_addend = ptr->addend;
2797 int_rela.r_ssym = RSS_UNDEF;
2798
2799 if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
2800 && ! _bfd_elf_validate_reloc (abfd, ptr))
2801 {
2802 *failedp = TRUE;
2803 return;
2804 }
2805
2806 int_rela.r_type = ptr->howto->type;
2807 int_rela.r_type2 = (int) R_MIPS_NONE;
2808 int_rela.r_type3 = (int) R_MIPS_NONE;
2809
2810 for (i = 0; i < 2; i++)
2811 {
2812 arelent *r;
2813
2814 if (idx + 1 >= sec->reloc_count)
2815 break;
2816 r = sec->orelocation[idx + 1];
2817 if (r->address != ptr->address
2818 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2819 || (*r->sym_ptr_ptr)->value != 0)
2820 break;
2821
2822 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2823
2824 if (i == 0)
2825 int_rela.r_type2 = r->howto->type;
2826 else
2827 int_rela.r_type3 = r->howto->type;
2828
2829 ++idx;
2830 }
2831
2832 mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
2833 }
2834
2835 BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
2836 == *count);
2837 }
2838 \f
2839 /* Set the right machine number for a MIPS ELF file. */
2840
2841 static bfd_boolean
2842 mips_elf64_object_p (bfd *abfd)
2843 {
2844 unsigned long mach;
2845
2846 /* Irix 6 is broken. Object file symbol tables are not always
2847 sorted correctly such that local symbols precede global symbols,
2848 and the sh_info field in the symbol table is not always right. */
2849 if (elf64_mips_irix_compat (abfd) != ict_none)
2850 elf_bad_symtab (abfd) = TRUE;
2851
2852 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
2853 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
2854 return TRUE;
2855 }
2856
2857 /* Depending on the target vector we generate some version of Irix
2858 executables or "normal" MIPS ELF ABI executables. */
2859 static irix_compat_t
2860 elf64_mips_irix_compat (bfd *abfd)
2861 {
2862 if ((abfd->xvec == &bfd_elf64_bigmips_vec)
2863 || (abfd->xvec == &bfd_elf64_littlemips_vec))
2864 return ict_irix6;
2865 else
2866 return ict_none;
2867 }
2868 \f
2869 /* Support for core dump NOTE sections. */
2870 static bfd_boolean
2871 elf64_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2872 {
2873 int offset;
2874 unsigned int size;
2875
2876 switch (note->descsz)
2877 {
2878 default:
2879 return FALSE;
2880
2881 case 480: /* Linux/MIPS - N64 kernel */
2882 /* pr_cursig */
2883 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2884
2885 /* pr_pid */
2886 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2887
2888 /* pr_reg */
2889 offset = 112;
2890 size = 360;
2891
2892 break;
2893 }
2894
2895 /* Make a ".reg/999" section. */
2896 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2897 size, note->descpos + offset);
2898 }
2899
2900 static bfd_boolean
2901 elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2902 {
2903 switch (note->descsz)
2904 {
2905 default:
2906 return FALSE;
2907
2908 case 136: /* Linux/MIPS - N64 kernel elf_prpsinfo */
2909 elf_tdata (abfd)->core_program
2910 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2911 elf_tdata (abfd)->core_command
2912 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2913 }
2914
2915 /* Note that for some reason, a spurious space is tacked
2916 onto the end of the args in some (at least one anyway)
2917 implementations, so strip it off if it exists. */
2918
2919 {
2920 char *command = elf_tdata (abfd)->core_command;
2921 int n = strlen (command);
2922
2923 if (0 < n && command[n - 1] == ' ')
2924 command[n - 1] = '\0';
2925 }
2926
2927 return TRUE;
2928 }
2929 \f
2930 /* ECOFF swapping routines. These are used when dealing with the
2931 .mdebug section, which is in the ECOFF debugging format. */
2932 static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap =
2933 {
2934 /* Symbol table magic number. */
2935 magicSym2,
2936 /* Alignment of debugging information. E.g., 4. */
2937 8,
2938 /* Sizes of external symbolic information. */
2939 sizeof (struct hdr_ext),
2940 sizeof (struct dnr_ext),
2941 sizeof (struct pdr_ext),
2942 sizeof (struct sym_ext),
2943 sizeof (struct opt_ext),
2944 sizeof (struct fdr_ext),
2945 sizeof (struct rfd_ext),
2946 sizeof (struct ext_ext),
2947 /* Functions to swap in external symbolic data. */
2948 ecoff_swap_hdr_in,
2949 ecoff_swap_dnr_in,
2950 ecoff_swap_pdr_in,
2951 ecoff_swap_sym_in,
2952 ecoff_swap_opt_in,
2953 ecoff_swap_fdr_in,
2954 ecoff_swap_rfd_in,
2955 ecoff_swap_ext_in,
2956 _bfd_ecoff_swap_tir_in,
2957 _bfd_ecoff_swap_rndx_in,
2958 /* Functions to swap out external symbolic data. */
2959 ecoff_swap_hdr_out,
2960 ecoff_swap_dnr_out,
2961 ecoff_swap_pdr_out,
2962 ecoff_swap_sym_out,
2963 ecoff_swap_opt_out,
2964 ecoff_swap_fdr_out,
2965 ecoff_swap_rfd_out,
2966 ecoff_swap_ext_out,
2967 _bfd_ecoff_swap_tir_out,
2968 _bfd_ecoff_swap_rndx_out,
2969 /* Function to read in symbolic data. */
2970 _bfd_mips_elf_read_ecoff_info
2971 };
2972 \f
2973 /* Relocations in the 64 bit MIPS ELF ABI are more complex than in
2974 standard ELF. This structure is used to redirect the relocation
2975 handling routines. */
2976
2977 const struct elf_size_info mips_elf64_size_info =
2978 {
2979 sizeof (Elf64_External_Ehdr),
2980 sizeof (Elf64_External_Phdr),
2981 sizeof (Elf64_External_Shdr),
2982 sizeof (Elf64_Mips_External_Rel),
2983 sizeof (Elf64_Mips_External_Rela),
2984 sizeof (Elf64_External_Sym),
2985 sizeof (Elf64_External_Dyn),
2986 sizeof (Elf_External_Note),
2987 4, /* hash-table entry size */
2988 3, /* internal relocations per external relocations */
2989 64, /* arch_size */
2990 3, /* log_file_align */
2991 ELFCLASS64,
2992 EV_CURRENT,
2993 bfd_elf64_write_out_phdrs,
2994 bfd_elf64_write_shdrs_and_ehdr,
2995 mips_elf64_write_relocs,
2996 bfd_elf64_swap_symbol_in,
2997 bfd_elf64_swap_symbol_out,
2998 mips_elf64_slurp_reloc_table,
2999 bfd_elf64_slurp_symbol_table,
3000 bfd_elf64_swap_dyn_in,
3001 bfd_elf64_swap_dyn_out,
3002 mips_elf64_be_swap_reloc_in,
3003 mips_elf64_be_swap_reloc_out,
3004 mips_elf64_be_swap_reloca_in,
3005 mips_elf64_be_swap_reloca_out
3006 };
3007
3008 #define ELF_ARCH bfd_arch_mips
3009 #define ELF_MACHINE_CODE EM_MIPS
3010
3011 #define elf_backend_collect TRUE
3012 #define elf_backend_type_change_ok TRUE
3013 #define elf_backend_can_gc_sections TRUE
3014 #define elf_info_to_howto mips_elf64_info_to_howto_rela
3015 #define elf_info_to_howto_rel mips_elf64_info_to_howto_rel
3016 #define elf_backend_object_p mips_elf64_object_p
3017 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
3018 #define elf_backend_section_processing _bfd_mips_elf_section_processing
3019 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
3020 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
3021 #define elf_backend_section_from_bfd_section \
3022 _bfd_mips_elf_section_from_bfd_section
3023 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
3024 #define elf_backend_link_output_symbol_hook \
3025 _bfd_mips_elf_link_output_symbol_hook
3026 #define elf_backend_create_dynamic_sections \
3027 _bfd_mips_elf_create_dynamic_sections
3028 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
3029 #define elf_backend_merge_symbol_attribute \
3030 _bfd_mips_elf_merge_symbol_attribute
3031 #define elf_backend_adjust_dynamic_symbol \
3032 _bfd_mips_elf_adjust_dynamic_symbol
3033 #define elf_backend_always_size_sections \
3034 _bfd_mips_elf_always_size_sections
3035 #define elf_backend_size_dynamic_sections \
3036 _bfd_mips_elf_size_dynamic_sections
3037 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
3038 #define elf_backend_finish_dynamic_symbol \
3039 _bfd_mips_elf_finish_dynamic_symbol
3040 #define elf_backend_finish_dynamic_sections \
3041 _bfd_mips_elf_finish_dynamic_sections
3042 #define elf_backend_final_write_processing \
3043 _bfd_mips_elf_final_write_processing
3044 #define elf_backend_additional_program_headers \
3045 _bfd_mips_elf_additional_program_headers
3046 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
3047 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
3048 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
3049 #define elf_backend_copy_indirect_symbol \
3050 _bfd_mips_elf_copy_indirect_symbol
3051 #define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
3052 #define elf_backend_ignore_discarded_relocs \
3053 _bfd_mips_elf_ignore_discarded_relocs
3054 #define elf_backend_mips_irix_compat elf64_mips_irix_compat
3055 #define elf_backend_mips_rtype_to_howto mips_elf64_rtype_to_howto
3056 #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
3057 #define elf_backend_size_info mips_elf64_size_info
3058
3059 #define elf_backend_grok_prstatus elf64_mips_grok_prstatus
3060 #define elf_backend_grok_psinfo elf64_mips_grok_psinfo
3061
3062 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
3063
3064 /* MIPS ELF64 can use a mixture of REL and RELA, but some Relocations
3065 work better/work only in RELA, so we default to this. */
3066 #define elf_backend_may_use_rel_p 1
3067 #define elf_backend_may_use_rela_p 1
3068 #define elf_backend_default_use_rela_p 1
3069
3070 #define elf_backend_write_section _bfd_mips_elf_write_section
3071
3072 /* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit
3073 MIPS-specific function only applies to IRIX5, which had no 64-bit
3074 ABI. */
3075 #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line
3076 #define bfd_elf64_find_inliner_info _bfd_mips_elf_find_inliner_info
3077 #define bfd_elf64_new_section_hook _bfd_mips_elf_new_section_hook
3078 #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents
3079 #define bfd_elf64_bfd_get_relocated_section_contents \
3080 _bfd_elf_mips_get_relocated_section_contents
3081 #define bfd_elf64_bfd_link_hash_table_create \
3082 _bfd_mips_elf_link_hash_table_create
3083 #define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link
3084 #define bfd_elf64_bfd_merge_private_bfd_data \
3085 _bfd_mips_elf_merge_private_bfd_data
3086 #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags
3087 #define bfd_elf64_bfd_print_private_bfd_data \
3088 _bfd_mips_elf_print_private_bfd_data
3089
3090 #define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
3091 #define bfd_elf64_canonicalize_reloc mips_elf64_canonicalize_reloc
3092 #define bfd_elf64_get_dynamic_reloc_upper_bound mips_elf64_get_dynamic_reloc_upper_bound
3093 #define bfd_elf64_canonicalize_dynamic_reloc mips_elf64_canonicalize_dynamic_reloc
3094 #define bfd_elf64_bfd_relax_section _bfd_mips_relax_section
3095
3096 /* MIPS ELF64 archive functions. */
3097 #define bfd_elf64_archive_functions
3098 extern bfd_boolean bfd_elf64_archive_slurp_armap
3099 (bfd *);
3100 extern bfd_boolean bfd_elf64_archive_write_armap
3101 (bfd *, unsigned int, struct orl *, unsigned int, int);
3102 #define bfd_elf64_archive_slurp_extended_name_table \
3103 _bfd_archive_coff_slurp_extended_name_table
3104 #define bfd_elf64_archive_construct_extended_name_table \
3105 _bfd_archive_coff_construct_extended_name_table
3106 #define bfd_elf64_archive_truncate_arname \
3107 _bfd_archive_coff_truncate_arname
3108 #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
3109 #define bfd_elf64_archive_openr_next_archived_file \
3110 _bfd_archive_coff_openr_next_archived_file
3111 #define bfd_elf64_archive_get_elt_at_index \
3112 _bfd_archive_coff_get_elt_at_index
3113 #define bfd_elf64_archive_generic_stat_arch_elt \
3114 _bfd_archive_coff_generic_stat_arch_elt
3115 #define bfd_elf64_archive_update_armap_timestamp \
3116 _bfd_archive_coff_update_armap_timestamp
3117
3118 /* The SGI style (n)64 NewABI. */
3119 #define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec
3120 #define TARGET_LITTLE_NAME "elf64-littlemips"
3121 #define TARGET_BIG_SYM bfd_elf64_bigmips_vec
3122 #define TARGET_BIG_NAME "elf64-bigmips"
3123
3124 #define ELF_MAXPAGESIZE 0x10000
3125 #define ELF_COMMONPAGESIZE 0x1000
3126
3127 #include "elf64-target.h"
3128
3129 /* The SYSV-style 'traditional' (n)64 NewABI. */
3130 #undef TARGET_LITTLE_SYM
3131 #undef TARGET_LITTLE_NAME
3132 #undef TARGET_BIG_SYM
3133 #undef TARGET_BIG_NAME
3134
3135 #undef ELF_MAXPAGESIZE
3136 #undef ELF_COMMONPAGESIZE
3137
3138 #define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec
3139 #define TARGET_LITTLE_NAME "elf64-tradlittlemips"
3140 #define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec
3141 #define TARGET_BIG_NAME "elf64-tradbigmips"
3142
3143 #define ELF_MAXPAGESIZE 0x10000
3144 #define ELF_COMMONPAGESIZE 0x1000
3145 #define elf64_bed elf64_tradbed
3146
3147 /* Include the target file again for this target. */
3148 #include "elf64-target.h"
GDB Binutils - Deliverables
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