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* elf64-mips.c (mips_elf64_howto_table_rela): Add support for
[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 2006, 2007, 2008 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 3 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,
23 MA 02110-1301, USA. */
24
25
26 /* This file supports the 64-bit MIPS ELF ABI.
27
28 The MIPS 64-bit ELF ABI uses an unusual reloc format. This file
29 overrides the usual ELF reloc handling, and handles reading and
30 writing the relocations here. */
31
32 /* TODO: Many things are unsupported, even if there is some code for it
33 . (which was mostly stolen from elf32-mips.c and slightly adapted).
34 .
35 . - Relocation handling for REL relocs is wrong in many cases and
36 . generally untested.
37 . - Relocation handling for RELA relocs related to GOT support are
38 . also likely to be wrong.
39 . - Support for MIPS16 is untested.
40 . - Combined relocs with RSS_* entries are unsupported.
41 . - The whole GOT handling for NewABI is missing, some parts of
42 . the OldABI version is still lying around and should be removed.
43 */
44
45 #include "sysdep.h"
46 #include "bfd.h"
47 #include "libbfd.h"
48 #include "aout/ar.h"
49 #include "bfdlink.h"
50 #include "genlink.h"
51 #include "elf-bfd.h"
52 #include "elfxx-mips.h"
53 #include "elf/mips.h"
54
55 /* Get the ECOFF swapping routines. The 64-bit ABI is not supposed to
56 use ECOFF. However, we support it anyhow for an easier changeover. */
57 #include "coff/sym.h"
58 #include "coff/symconst.h"
59 #include "coff/internal.h"
60 #include "coff/ecoff.h"
61 /* The 64 bit versions of the mdebug data structures are in alpha.h. */
62 #include "coff/alpha.h"
63 #define ECOFF_SIGNED_64
64 #include "ecoffswap.h"
65
66 static void mips_elf64_swap_reloc_in
67 (bfd *, const Elf64_Mips_External_Rel *, Elf64_Mips_Internal_Rela *);
68 static void mips_elf64_swap_reloca_in
69 (bfd *, const Elf64_Mips_External_Rela *, Elf64_Mips_Internal_Rela *);
70 static void mips_elf64_swap_reloc_out
71 (bfd *, const Elf64_Mips_Internal_Rela *, Elf64_Mips_External_Rel *);
72 static void mips_elf64_swap_reloca_out
73 (bfd *, const Elf64_Mips_Internal_Rela *, Elf64_Mips_External_Rela *);
74 static void mips_elf64_be_swap_reloc_in
75 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
76 static void mips_elf64_be_swap_reloc_out
77 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
78 static void mips_elf64_be_swap_reloca_in
79 (bfd *, const bfd_byte *, Elf_Internal_Rela *);
80 static void mips_elf64_be_swap_reloca_out
81 (bfd *, const Elf_Internal_Rela *, bfd_byte *);
82 static reloc_howto_type *bfd_elf64_bfd_reloc_type_lookup
83 (bfd *, bfd_reloc_code_real_type);
84 static reloc_howto_type *mips_elf64_rtype_to_howto
85 (unsigned int, bfd_boolean);
86 static void mips_elf64_info_to_howto_rel
87 (bfd *, arelent *, Elf_Internal_Rela *);
88 static void mips_elf64_info_to_howto_rela
89 (bfd *, arelent *, Elf_Internal_Rela *);
90 static long mips_elf64_get_reloc_upper_bound
91 (bfd *, asection *);
92 static long mips_elf64_canonicalize_reloc
93 (bfd *, asection *, arelent **, asymbol **);
94 static long mips_elf64_get_dynamic_reloc_upper_bound
95 (bfd *);
96 static long mips_elf64_canonicalize_dynamic_reloc
97 (bfd *, arelent **, asymbol **);
98 static bfd_boolean mips_elf64_slurp_one_reloc_table
99 (bfd *, asection *, Elf_Internal_Shdr *, bfd_size_type, arelent *,
100 asymbol **, bfd_boolean);
101 static bfd_boolean mips_elf64_slurp_reloc_table
102 (bfd *, asection *, asymbol **, bfd_boolean);
103 static void mips_elf64_write_relocs
104 (bfd *, asection *, void *);
105 static void mips_elf64_write_rel
106 (bfd *, asection *, Elf_Internal_Shdr *, int *, void *);
107 static void mips_elf64_write_rela
108 (bfd *, asection *, Elf_Internal_Shdr *, int *, void *);
109 static bfd_reloc_status_type mips_elf64_gprel16_reloc
110 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
111 static bfd_reloc_status_type mips_elf64_literal_reloc
112 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
113 static bfd_reloc_status_type mips_elf64_gprel32_reloc
114 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
115 static bfd_reloc_status_type mips_elf64_shift6_reloc
116 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
117 static bfd_reloc_status_type mips16_gprel_reloc
118 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
119 static bfd_boolean mips_elf64_assign_gp
120 (bfd *, bfd_vma *);
121 static bfd_reloc_status_type mips_elf64_final_gp
122 (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *);
123 static bfd_boolean mips_elf64_object_p
124 (bfd *);
125 static irix_compat_t elf64_mips_irix_compat
126 (bfd *);
127 static bfd_boolean elf64_mips_grok_prstatus
128 (bfd *, Elf_Internal_Note *);
129 static bfd_boolean elf64_mips_grok_psinfo
130 (bfd *, Elf_Internal_Note *);
131
132 extern const bfd_target bfd_elf64_bigmips_vec;
133 extern const bfd_target bfd_elf64_littlemips_vec;
134
135 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
136 from smaller values. Start with zero, widen, *then* decrement. */
137 #define MINUS_ONE (((bfd_vma)0) - 1)
138
139 /* The number of local .got entries we reserve. */
140 #define MIPS_RESERVED_GOTNO (2)
141 \f
142 /* The relocation table used for SHT_REL sections. */
143
144 static reloc_howto_type mips_elf64_howto_table_rel[] =
145 {
146 /* No relocation. */
147 HOWTO (R_MIPS_NONE, /* type */
148 0, /* rightshift */
149 0, /* size (0 = byte, 1 = short, 2 = long) */
150 0, /* bitsize */
151 FALSE, /* pc_relative */
152 0, /* bitpos */
153 complain_overflow_dont, /* complain_on_overflow */
154 _bfd_mips_elf_generic_reloc, /* special_function */
155 "R_MIPS_NONE", /* name */
156 FALSE, /* partial_inplace */
157 0, /* src_mask */
158 0, /* dst_mask */
159 FALSE), /* pcrel_offset */
160
161 /* 16 bit relocation. */
162 HOWTO (R_MIPS_16, /* type */
163 0, /* rightshift */
164 2, /* size (0 = byte, 1 = short, 2 = long) */
165 16, /* bitsize */
166 FALSE, /* pc_relative */
167 0, /* bitpos */
168 complain_overflow_signed, /* complain_on_overflow */
169 _bfd_mips_elf_generic_reloc, /* special_function */
170 "R_MIPS_16", /* name */
171 TRUE, /* partial_inplace */
172 0x0000ffff, /* src_mask */
173 0x0000ffff, /* dst_mask */
174 FALSE), /* pcrel_offset */
175
176 /* 32 bit relocation. */
177 HOWTO (R_MIPS_32, /* type */
178 0, /* rightshift */
179 2, /* size (0 = byte, 1 = short, 2 = long) */
180 32, /* bitsize */
181 FALSE, /* pc_relative */
182 0, /* bitpos */
183 complain_overflow_dont, /* complain_on_overflow */
184 _bfd_mips_elf_generic_reloc, /* special_function */
185 "R_MIPS_32", /* name */
186 TRUE, /* partial_inplace */
187 0xffffffff, /* src_mask */
188 0xffffffff, /* dst_mask */
189 FALSE), /* pcrel_offset */
190
191 /* 32 bit symbol relative relocation. */
192 HOWTO (R_MIPS_REL32, /* type */
193 0, /* rightshift */
194 2, /* size (0 = byte, 1 = short, 2 = long) */
195 32, /* bitsize */
196 FALSE, /* pc_relative */
197 0, /* bitpos */
198 complain_overflow_dont, /* complain_on_overflow */
199 _bfd_mips_elf_generic_reloc, /* special_function */
200 "R_MIPS_REL32", /* name */
201 TRUE, /* partial_inplace */
202 0xffffffff, /* src_mask */
203 0xffffffff, /* dst_mask */
204 FALSE), /* pcrel_offset */
205
206 /* 26 bit jump address. */
207 HOWTO (R_MIPS_26, /* type */
208 2, /* rightshift */
209 2, /* size (0 = byte, 1 = short, 2 = long) */
210 26, /* bitsize */
211 FALSE, /* pc_relative */
212 0, /* bitpos */
213 complain_overflow_dont, /* complain_on_overflow */
214 /* This needs complex overflow
215 detection, because the upper 36
216 bits must match the PC + 4. */
217 _bfd_mips_elf_generic_reloc, /* special_function */
218 "R_MIPS_26", /* name */
219 TRUE, /* partial_inplace */
220 0x03ffffff, /* src_mask */
221 0x03ffffff, /* dst_mask */
222 FALSE), /* pcrel_offset */
223
224 /* R_MIPS_HI16 and R_MIPS_LO16 are unsupported for NewABI REL.
225 However, the native IRIX6 tools use them, so we try our best. */
226
227 /* High 16 bits of symbol value. */
228 HOWTO (R_MIPS_HI16, /* type */
229 16, /* rightshift */
230 2, /* size (0 = byte, 1 = short, 2 = long) */
231 16, /* bitsize */
232 FALSE, /* pc_relative */
233 0, /* bitpos */
234 complain_overflow_dont, /* complain_on_overflow */
235 _bfd_mips_elf_hi16_reloc, /* special_function */
236 "R_MIPS_HI16", /* name */
237 TRUE, /* partial_inplace */
238 0x0000ffff, /* src_mask */
239 0x0000ffff, /* dst_mask */
240 FALSE), /* pcrel_offset */
241
242 /* Low 16 bits of symbol value. */
243 HOWTO (R_MIPS_LO16, /* type */
244 0, /* rightshift */
245 2, /* size (0 = byte, 1 = short, 2 = long) */
246 16, /* bitsize */
247 FALSE, /* pc_relative */
248 0, /* bitpos */
249 complain_overflow_dont, /* complain_on_overflow */
250 _bfd_mips_elf_lo16_reloc, /* special_function */
251 "R_MIPS_LO16", /* name */
252 TRUE, /* partial_inplace */
253 0x0000ffff, /* src_mask */
254 0x0000ffff, /* dst_mask */
255 FALSE), /* pcrel_offset */
256
257 /* GP relative reference. */
258 HOWTO (R_MIPS_GPREL16, /* type */
259 0, /* rightshift */
260 2, /* size (0 = byte, 1 = short, 2 = long) */
261 16, /* bitsize */
262 FALSE, /* pc_relative */
263 0, /* bitpos */
264 complain_overflow_signed, /* complain_on_overflow */
265 mips_elf64_gprel16_reloc, /* special_function */
266 "R_MIPS_GPREL16", /* name */
267 TRUE, /* partial_inplace */
268 0x0000ffff, /* src_mask */
269 0x0000ffff, /* dst_mask */
270 FALSE), /* pcrel_offset */
271
272 /* Reference to literal section. */
273 HOWTO (R_MIPS_LITERAL, /* type */
274 0, /* rightshift */
275 2, /* size (0 = byte, 1 = short, 2 = long) */
276 16, /* bitsize */
277 FALSE, /* pc_relative */
278 0, /* bitpos */
279 complain_overflow_signed, /* complain_on_overflow */
280 mips_elf64_literal_reloc, /* special_function */
281 "R_MIPS_LITERAL", /* name */
282 TRUE, /* partial_inplace */
283 0x0000ffff, /* src_mask */
284 0x0000ffff, /* dst_mask */
285 FALSE), /* pcrel_offset */
286
287 /* Reference to global offset table. */
288 HOWTO (R_MIPS_GOT16, /* type */
289 0, /* rightshift */
290 2, /* size (0 = byte, 1 = short, 2 = long) */
291 16, /* bitsize */
292 FALSE, /* pc_relative */
293 0, /* bitpos */
294 complain_overflow_signed, /* complain_on_overflow */
295 _bfd_mips_elf_got16_reloc, /* special_function */
296 "R_MIPS_GOT16", /* name */
297 TRUE, /* partial_inplace */
298 0x0000ffff, /* src_mask */
299 0x0000ffff, /* dst_mask */
300 FALSE), /* pcrel_offset */
301
302 /* 16 bit PC relative reference. Note that the ABI document has a typo
303 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
304 We do the right thing here. */
305 HOWTO (R_MIPS_PC16, /* type */
306 2, /* rightshift */
307 2, /* size (0 = byte, 1 = short, 2 = long) */
308 16, /* bitsize */
309 TRUE, /* pc_relative */
310 0, /* bitpos */
311 complain_overflow_signed, /* complain_on_overflow */
312 _bfd_mips_elf_generic_reloc, /* special_function */
313 "R_MIPS_PC16", /* name */
314 TRUE, /* partial_inplace */
315 0x0000ffff, /* src_mask */
316 0x0000ffff, /* dst_mask */
317 TRUE), /* pcrel_offset */
318
319 /* 16 bit call through global offset table. */
320 HOWTO (R_MIPS_CALL16, /* type */
321 0, /* rightshift */
322 2, /* size (0 = byte, 1 = short, 2 = long) */
323 16, /* bitsize */
324 FALSE, /* pc_relative */
325 0, /* bitpos */
326 complain_overflow_signed, /* complain_on_overflow */
327 _bfd_mips_elf_generic_reloc, /* special_function */
328 "R_MIPS_CALL16", /* name */
329 TRUE, /* partial_inplace */
330 0x0000ffff, /* src_mask */
331 0x0000ffff, /* dst_mask */
332 FALSE), /* pcrel_offset */
333
334 /* 32 bit GP relative reference. */
335 HOWTO (R_MIPS_GPREL32, /* type */
336 0, /* rightshift */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
338 32, /* bitsize */
339 FALSE, /* pc_relative */
340 0, /* bitpos */
341 complain_overflow_dont, /* complain_on_overflow */
342 mips_elf64_gprel32_reloc, /* special_function */
343 "R_MIPS_GPREL32", /* name */
344 TRUE, /* partial_inplace */
345 0xffffffff, /* src_mask */
346 0xffffffff, /* dst_mask */
347 FALSE), /* pcrel_offset */
348
349 EMPTY_HOWTO (13),
350 EMPTY_HOWTO (14),
351 EMPTY_HOWTO (15),
352
353 /* A 5 bit shift field. */
354 HOWTO (R_MIPS_SHIFT5, /* type */
355 0, /* rightshift */
356 2, /* size (0 = byte, 1 = short, 2 = long) */
357 5, /* bitsize */
358 FALSE, /* pc_relative */
359 6, /* bitpos */
360 complain_overflow_bitfield, /* complain_on_overflow */
361 _bfd_mips_elf_generic_reloc, /* special_function */
362 "R_MIPS_SHIFT5", /* name */
363 TRUE, /* partial_inplace */
364 0x000007c0, /* src_mask */
365 0x000007c0, /* dst_mask */
366 FALSE), /* pcrel_offset */
367
368 /* A 6 bit shift field. */
369 HOWTO (R_MIPS_SHIFT6, /* type */
370 0, /* rightshift */
371 2, /* size (0 = byte, 1 = short, 2 = long) */
372 6, /* bitsize */
373 FALSE, /* pc_relative */
374 6, /* bitpos */
375 complain_overflow_bitfield, /* complain_on_overflow */
376 mips_elf64_shift6_reloc, /* special_function */
377 "R_MIPS_SHIFT6", /* name */
378 TRUE, /* partial_inplace */
379 0x000007c4, /* src_mask */
380 0x000007c4, /* dst_mask */
381 FALSE), /* pcrel_offset */
382
383 /* 64 bit relocation. */
384 HOWTO (R_MIPS_64, /* type */
385 0, /* rightshift */
386 4, /* size (0 = byte, 1 = short, 2 = long) */
387 64, /* bitsize */
388 FALSE, /* pc_relative */
389 0, /* bitpos */
390 complain_overflow_dont, /* complain_on_overflow */
391 _bfd_mips_elf_generic_reloc, /* special_function */
392 "R_MIPS_64", /* name */
393 TRUE, /* partial_inplace */
394 MINUS_ONE, /* src_mask */
395 MINUS_ONE, /* dst_mask */
396 FALSE), /* pcrel_offset */
397
398 /* Displacement in the global offset table. */
399 HOWTO (R_MIPS_GOT_DISP, /* type */
400 0, /* rightshift */
401 2, /* size (0 = byte, 1 = short, 2 = long) */
402 16, /* bitsize */
403 FALSE, /* pc_relative */
404 0, /* bitpos */
405 complain_overflow_signed, /* complain_on_overflow */
406 _bfd_mips_elf_generic_reloc, /* special_function */
407 "R_MIPS_GOT_DISP", /* name */
408 TRUE, /* partial_inplace */
409 0x0000ffff, /* src_mask */
410 0x0000ffff, /* dst_mask */
411 FALSE), /* pcrel_offset */
412
413 /* Displacement to page pointer in the global offset table. */
414 HOWTO (R_MIPS_GOT_PAGE, /* type */
415 0, /* rightshift */
416 2, /* size (0 = byte, 1 = short, 2 = long) */
417 16, /* bitsize */
418 FALSE, /* pc_relative */
419 0, /* bitpos */
420 complain_overflow_signed, /* complain_on_overflow */
421 _bfd_mips_elf_generic_reloc, /* special_function */
422 "R_MIPS_GOT_PAGE", /* name */
423 TRUE, /* partial_inplace */
424 0x0000ffff, /* src_mask */
425 0x0000ffff, /* dst_mask */
426 FALSE), /* pcrel_offset */
427
428 /* Offset from page pointer in the global offset table. */
429 HOWTO (R_MIPS_GOT_OFST, /* type */
430 0, /* rightshift */
431 2, /* size (0 = byte, 1 = short, 2 = long) */
432 16, /* bitsize */
433 FALSE, /* pc_relative */
434 0, /* bitpos */
435 complain_overflow_signed, /* complain_on_overflow */
436 _bfd_mips_elf_generic_reloc, /* special_function */
437 "R_MIPS_GOT_OFST", /* name */
438 TRUE, /* partial_inplace */
439 0x0000ffff, /* src_mask */
440 0x0000ffff, /* dst_mask */
441 FALSE), /* pcrel_offset */
442
443 /* High 16 bits of displacement in global offset table. */
444 HOWTO (R_MIPS_GOT_HI16, /* type */
445 0, /* rightshift */
446 2, /* size (0 = byte, 1 = short, 2 = long) */
447 16, /* bitsize */
448 FALSE, /* pc_relative */
449 0, /* bitpos */
450 complain_overflow_dont, /* complain_on_overflow */
451 _bfd_mips_elf_generic_reloc, /* special_function */
452 "R_MIPS_GOT_HI16", /* name */
453 TRUE, /* partial_inplace */
454 0x0000ffff, /* src_mask */
455 0x0000ffff, /* dst_mask */
456 FALSE), /* pcrel_offset */
457
458 /* Low 16 bits of displacement in global offset table. */
459 HOWTO (R_MIPS_GOT_LO16, /* type */
460 0, /* rightshift */
461 2, /* size (0 = byte, 1 = short, 2 = long) */
462 16, /* bitsize */
463 FALSE, /* pc_relative */
464 0, /* bitpos */
465 complain_overflow_dont, /* complain_on_overflow */
466 _bfd_mips_elf_generic_reloc, /* special_function */
467 "R_MIPS_GOT_LO16", /* name */
468 TRUE, /* partial_inplace */
469 0x0000ffff, /* src_mask */
470 0x0000ffff, /* dst_mask */
471 FALSE), /* pcrel_offset */
472
473 /* 64 bit subtraction. */
474 HOWTO (R_MIPS_SUB, /* type */
475 0, /* rightshift */
476 4, /* size (0 = byte, 1 = short, 2 = long) */
477 64, /* bitsize */
478 FALSE, /* pc_relative */
479 0, /* bitpos */
480 complain_overflow_dont, /* complain_on_overflow */
481 _bfd_mips_elf_generic_reloc, /* special_function */
482 "R_MIPS_SUB", /* name */
483 TRUE, /* partial_inplace */
484 MINUS_ONE, /* src_mask */
485 MINUS_ONE, /* dst_mask */
486 FALSE), /* pcrel_offset */
487
488 /* Insert the addend as an instruction. */
489 /* FIXME: Not handled correctly. */
490 HOWTO (R_MIPS_INSERT_A, /* type */
491 0, /* rightshift */
492 2, /* size (0 = byte, 1 = short, 2 = long) */
493 32, /* bitsize */
494 FALSE, /* pc_relative */
495 0, /* bitpos */
496 complain_overflow_dont, /* complain_on_overflow */
497 _bfd_mips_elf_generic_reloc, /* special_function */
498 "R_MIPS_INSERT_A", /* name */
499 TRUE, /* partial_inplace */
500 0xffffffff, /* src_mask */
501 0xffffffff, /* dst_mask */
502 FALSE), /* pcrel_offset */
503
504 /* Insert the addend as an instruction, and change all relocations
505 to refer to the old instruction at the address. */
506 /* FIXME: Not handled correctly. */
507 HOWTO (R_MIPS_INSERT_B, /* type */
508 0, /* rightshift */
509 2, /* size (0 = byte, 1 = short, 2 = long) */
510 32, /* bitsize */
511 FALSE, /* pc_relative */
512 0, /* bitpos */
513 complain_overflow_dont, /* complain_on_overflow */
514 _bfd_mips_elf_generic_reloc, /* special_function */
515 "R_MIPS_INSERT_B", /* name */
516 TRUE, /* partial_inplace */
517 0xffffffff, /* src_mask */
518 0xffffffff, /* dst_mask */
519 FALSE), /* pcrel_offset */
520
521 /* Delete a 32 bit instruction. */
522 /* FIXME: Not handled correctly. */
523 HOWTO (R_MIPS_DELETE, /* type */
524 0, /* rightshift */
525 2, /* size (0 = byte, 1 = short, 2 = long) */
526 32, /* bitsize */
527 FALSE, /* pc_relative */
528 0, /* bitpos */
529 complain_overflow_dont, /* complain_on_overflow */
530 _bfd_mips_elf_generic_reloc, /* special_function */
531 "R_MIPS_DELETE", /* name */
532 TRUE, /* partial_inplace */
533 0xffffffff, /* src_mask */
534 0xffffffff, /* dst_mask */
535 FALSE), /* pcrel_offset */
536
537 /* The MIPS ELF64 ABI Draft wants us to support these for REL relocations.
538 We don't, because
539 a) It means building the addend from a R_MIPS_HIGHEST/R_MIPS_HIGHER/
540 R_MIPS_HI16/R_MIPS_LO16 sequence with varying ordering, using
541 fallable heuristics.
542 b) No other NewABI toolchain actually emits such relocations. */
543 EMPTY_HOWTO (R_MIPS_HIGHER),
544 EMPTY_HOWTO (R_MIPS_HIGHEST),
545
546 /* High 16 bits of displacement in global offset table. */
547 HOWTO (R_MIPS_CALL_HI16, /* type */
548 0, /* rightshift */
549 2, /* size (0 = byte, 1 = short, 2 = long) */
550 16, /* bitsize */
551 FALSE, /* pc_relative */
552 0, /* bitpos */
553 complain_overflow_dont, /* complain_on_overflow */
554 _bfd_mips_elf_generic_reloc, /* special_function */
555 "R_MIPS_CALL_HI16", /* name */
556 TRUE, /* partial_inplace */
557 0x0000ffff, /* src_mask */
558 0x0000ffff, /* dst_mask */
559 FALSE), /* pcrel_offset */
560
561 /* Low 16 bits of displacement in global offset table. */
562 HOWTO (R_MIPS_CALL_LO16, /* type */
563 0, /* rightshift */
564 2, /* size (0 = byte, 1 = short, 2 = long) */
565 16, /* bitsize */
566 FALSE, /* pc_relative */
567 0, /* bitpos */
568 complain_overflow_dont, /* complain_on_overflow */
569 _bfd_mips_elf_generic_reloc, /* special_function */
570 "R_MIPS_CALL_LO16", /* name */
571 TRUE, /* partial_inplace */
572 0x0000ffff, /* src_mask */
573 0x0000ffff, /* dst_mask */
574 FALSE), /* pcrel_offset */
575
576 /* Section displacement, used by an associated event location section. */
577 HOWTO (R_MIPS_SCN_DISP, /* type */
578 0, /* rightshift */
579 2, /* size (0 = byte, 1 = short, 2 = long) */
580 32, /* bitsize */
581 FALSE, /* pc_relative */
582 0, /* bitpos */
583 complain_overflow_dont, /* complain_on_overflow */
584 _bfd_mips_elf_generic_reloc, /* special_function */
585 "R_MIPS_SCN_DISP", /* name */
586 TRUE, /* partial_inplace */
587 0xffffffff, /* src_mask */
588 0xffffffff, /* dst_mask */
589 FALSE), /* pcrel_offset */
590
591 HOWTO (R_MIPS_REL16, /* type */
592 0, /* rightshift */
593 1, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_signed, /* complain_on_overflow */
598 _bfd_mips_elf_generic_reloc, /* special_function */
599 "R_MIPS_REL16", /* name */
600 TRUE, /* partial_inplace */
601 0xffff, /* src_mask */
602 0xffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
605 /* These two are obsolete. */
606 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
607 EMPTY_HOWTO (R_MIPS_PJUMP),
608
609 /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
610 It must be used for multigot GOT's (and only there). */
611 HOWTO (R_MIPS_RELGOT, /* type */
612 0, /* rightshift */
613 2, /* size (0 = byte, 1 = short, 2 = long) */
614 32, /* bitsize */
615 FALSE, /* pc_relative */
616 0, /* bitpos */
617 complain_overflow_dont, /* complain_on_overflow */
618 _bfd_mips_elf_generic_reloc, /* special_function */
619 "R_MIPS_RELGOT", /* name */
620 TRUE, /* partial_inplace */
621 0xffffffff, /* src_mask */
622 0xffffffff, /* dst_mask */
623 FALSE), /* pcrel_offset */
624
625 /* Protected jump conversion. This is an optimization hint. No
626 relocation is required for correctness. */
627 HOWTO (R_MIPS_JALR, /* type */
628 0, /* rightshift */
629 2, /* size (0 = byte, 1 = short, 2 = long) */
630 32, /* bitsize */
631 FALSE, /* pc_relative */
632 0, /* bitpos */
633 complain_overflow_dont, /* complain_on_overflow */
634 _bfd_mips_elf_generic_reloc, /* special_function */
635 "R_MIPS_JALR", /* name */
636 FALSE, /* partial_inplace */
637 0, /* src_mask */
638 0x00000000, /* dst_mask */
639 FALSE), /* pcrel_offset */
640
641 /* TLS relocations. */
642 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
643 EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
644
645 HOWTO (R_MIPS_TLS_DTPMOD64, /* type */
646 0, /* rightshift */
647 4, /* size (0 = byte, 1 = short, 2 = long) */
648 64, /* bitsize */
649 FALSE, /* pc_relative */
650 0, /* bitpos */
651 complain_overflow_dont, /* complain_on_overflow */
652 _bfd_mips_elf_generic_reloc, /* special_function */
653 "R_MIPS_TLS_DTPMOD64", /* name */
654 TRUE, /* partial_inplace */
655 MINUS_ONE, /* src_mask */
656 MINUS_ONE, /* dst_mask */
657 FALSE), /* pcrel_offset */
658
659 HOWTO (R_MIPS_TLS_DTPREL64, /* type */
660 0, /* rightshift */
661 4, /* size (0 = byte, 1 = short, 2 = long) */
662 64, /* bitsize */
663 FALSE, /* pc_relative */
664 0, /* bitpos */
665 complain_overflow_dont, /* complain_on_overflow */
666 _bfd_mips_elf_generic_reloc, /* special_function */
667 "R_MIPS_TLS_DTPREL64", /* name */
668 TRUE, /* partial_inplace */
669 MINUS_ONE, /* src_mask */
670 MINUS_ONE, /* dst_mask */
671 FALSE), /* pcrel_offset */
672
673 /* TLS general dynamic variable reference. */
674 HOWTO (R_MIPS_TLS_GD, /* type */
675 0, /* rightshift */
676 2, /* size (0 = byte, 1 = short, 2 = long) */
677 16, /* bitsize */
678 FALSE, /* pc_relative */
679 0, /* bitpos */
680 complain_overflow_signed, /* complain_on_overflow */
681 _bfd_mips_elf_generic_reloc, /* special_function */
682 "R_MIPS_TLS_GD", /* name */
683 TRUE, /* partial_inplace */
684 0x0000ffff, /* src_mask */
685 0x0000ffff, /* dst_mask */
686 FALSE), /* pcrel_offset */
687
688 /* TLS local dynamic variable reference. */
689 HOWTO (R_MIPS_TLS_LDM, /* type */
690 0, /* rightshift */
691 2, /* size (0 = byte, 1 = short, 2 = long) */
692 16, /* bitsize */
693 FALSE, /* pc_relative */
694 0, /* bitpos */
695 complain_overflow_signed, /* complain_on_overflow */
696 _bfd_mips_elf_generic_reloc, /* special_function */
697 "R_MIPS_TLS_LDM", /* name */
698 TRUE, /* partial_inplace */
699 0x0000ffff, /* src_mask */
700 0x0000ffff, /* dst_mask */
701 FALSE), /* pcrel_offset */
702
703 /* TLS local dynamic offset. */
704 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
705 0, /* rightshift */
706 2, /* size (0 = byte, 1 = short, 2 = long) */
707 16, /* bitsize */
708 FALSE, /* pc_relative */
709 0, /* bitpos */
710 complain_overflow_signed, /* complain_on_overflow */
711 _bfd_mips_elf_generic_reloc, /* special_function */
712 "R_MIPS_TLS_DTPREL_HI16", /* name */
713 TRUE, /* partial_inplace */
714 0x0000ffff, /* src_mask */
715 0x0000ffff, /* dst_mask */
716 FALSE), /* pcrel_offset */
717
718 /* TLS local dynamic offset. */
719 HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
720 0, /* rightshift */
721 2, /* size (0 = byte, 1 = short, 2 = long) */
722 16, /* bitsize */
723 FALSE, /* pc_relative */
724 0, /* bitpos */
725 complain_overflow_signed, /* complain_on_overflow */
726 _bfd_mips_elf_generic_reloc, /* special_function */
727 "R_MIPS_TLS_DTPREL_LO16", /* name */
728 TRUE, /* partial_inplace */
729 0x0000ffff, /* src_mask */
730 0x0000ffff, /* dst_mask */
731 FALSE), /* pcrel_offset */
732
733 /* TLS thread pointer offset. */
734 HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
735 0, /* rightshift */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
737 16, /* bitsize */
738 FALSE, /* pc_relative */
739 0, /* bitpos */
740 complain_overflow_signed, /* complain_on_overflow */
741 _bfd_mips_elf_generic_reloc, /* special_function */
742 "R_MIPS_TLS_GOTTPREL", /* name */
743 TRUE, /* partial_inplace */
744 0x0000ffff, /* src_mask */
745 0x0000ffff, /* dst_mask */
746 FALSE), /* pcrel_offset */
747
748 /* TLS IE dynamic relocations. */
749 EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
750
751 HOWTO (R_MIPS_TLS_TPREL64, /* type */
752 0, /* rightshift */
753 4, /* size (0 = byte, 1 = short, 2 = long) */
754 64, /* bitsize */
755 FALSE, /* pc_relative */
756 0, /* bitpos */
757 complain_overflow_dont, /* complain_on_overflow */
758 _bfd_mips_elf_generic_reloc, /* special_function */
759 "R_MIPS_TLS_TPREL64", /* name */
760 TRUE, /* partial_inplace */
761 MINUS_ONE, /* src_mask */
762 MINUS_ONE, /* dst_mask */
763 FALSE), /* pcrel_offset */
764
765 /* TLS thread pointer offset. */
766 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
767 0, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 16, /* bitsize */
770 FALSE, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_signed, /* complain_on_overflow */
773 _bfd_mips_elf_generic_reloc, /* special_function */
774 "R_MIPS_TLS_TPREL_HI16", /* name */
775 TRUE, /* partial_inplace */
776 0x0000ffff, /* src_mask */
777 0x0000ffff, /* dst_mask */
778 FALSE), /* pcrel_offset */
779
780 /* TLS thread pointer offset. */
781 HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
782 0, /* rightshift */
783 2, /* size (0 = byte, 1 = short, 2 = long) */
784 16, /* bitsize */
785 FALSE, /* pc_relative */
786 0, /* bitpos */
787 complain_overflow_signed, /* complain_on_overflow */
788 _bfd_mips_elf_generic_reloc, /* special_function */
789 "R_MIPS_TLS_TPREL_LO16", /* name */
790 TRUE, /* partial_inplace */
791 0x0000ffff, /* src_mask */
792 0x0000ffff, /* dst_mask */
793 FALSE), /* pcrel_offset */
794
795 /* 32 bit relocation with no addend. */
796 HOWTO (R_MIPS_GLOB_DAT, /* type */
797 0, /* rightshift */
798 2, /* size (0 = byte, 1 = short, 2 = long) */
799 32, /* bitsize */
800 FALSE, /* pc_relative */
801 0, /* bitpos */
802 complain_overflow_dont, /* complain_on_overflow */
803 _bfd_mips_elf_generic_reloc, /* special_function */
804 "R_MIPS_GLOB_DAT", /* name */
805 FALSE, /* partial_inplace */
806 0x0, /* src_mask */
807 0xffffffff, /* dst_mask */
808 FALSE), /* pcrel_offset */
809 };
810
811 /* The relocation table used for SHT_RELA sections. */
812
813 static reloc_howto_type mips_elf64_howto_table_rela[] =
814 {
815 /* No relocation. */
816 HOWTO (R_MIPS_NONE, /* type */
817 0, /* rightshift */
818 0, /* size (0 = byte, 1 = short, 2 = long) */
819 0, /* bitsize */
820 FALSE, /* pc_relative */
821 0, /* bitpos */
822 complain_overflow_dont, /* complain_on_overflow */
823 _bfd_mips_elf_generic_reloc, /* special_function */
824 "R_MIPS_NONE", /* name */
825 FALSE, /* partial_inplace */
826 0, /* src_mask */
827 0, /* dst_mask */
828 FALSE), /* pcrel_offset */
829
830 /* 16 bit relocation. */
831 HOWTO (R_MIPS_16, /* type */
832 0, /* rightshift */
833 2, /* size (0 = byte, 1 = short, 2 = long) */
834 16, /* bitsize */
835 FALSE, /* pc_relative */
836 0, /* bitpos */
837 complain_overflow_signed, /* complain_on_overflow */
838 _bfd_mips_elf_generic_reloc, /* special_function */
839 "R_MIPS_16", /* name */
840 FALSE, /* partial_inplace */
841 0, /* src_mask */
842 0x0000ffff, /* dst_mask */
843 FALSE), /* pcrel_offset */
844
845 /* 32 bit relocation. */
846 HOWTO (R_MIPS_32, /* type */
847 0, /* rightshift */
848 2, /* size (0 = byte, 1 = short, 2 = long) */
849 32, /* bitsize */
850 FALSE, /* pc_relative */
851 0, /* bitpos */
852 complain_overflow_dont, /* complain_on_overflow */
853 _bfd_mips_elf_generic_reloc, /* special_function */
854 "R_MIPS_32", /* name */
855 FALSE, /* partial_inplace */
856 0, /* src_mask */
857 0xffffffff, /* dst_mask */
858 FALSE), /* pcrel_offset */
859
860 /* 32 bit symbol relative relocation. */
861 HOWTO (R_MIPS_REL32, /* type */
862 0, /* rightshift */
863 2, /* size (0 = byte, 1 = short, 2 = long) */
864 32, /* bitsize */
865 FALSE, /* pc_relative */
866 0, /* bitpos */
867 complain_overflow_dont, /* complain_on_overflow */
868 _bfd_mips_elf_generic_reloc, /* special_function */
869 "R_MIPS_REL32", /* name */
870 FALSE, /* partial_inplace */
871 0, /* src_mask */
872 0xffffffff, /* dst_mask */
873 FALSE), /* pcrel_offset */
874
875 /* 26 bit jump address. */
876 HOWTO (R_MIPS_26, /* type */
877 2, /* rightshift */
878 2, /* size (0 = byte, 1 = short, 2 = long) */
879 26, /* bitsize */
880 FALSE, /* pc_relative */
881 0, /* bitpos */
882 complain_overflow_dont, /* complain_on_overflow */
883 /* This needs complex overflow
884 detection, because the upper 36
885 bits must match the PC + 4. */
886 _bfd_mips_elf_generic_reloc, /* special_function */
887 "R_MIPS_26", /* name */
888 FALSE, /* partial_inplace */
889 0, /* src_mask */
890 0x03ffffff, /* dst_mask */
891 FALSE), /* pcrel_offset */
892
893 /* High 16 bits of symbol value. */
894 HOWTO (R_MIPS_HI16, /* type */
895 0, /* rightshift */
896 2, /* size (0 = byte, 1 = short, 2 = long) */
897 16, /* bitsize */
898 FALSE, /* pc_relative */
899 0, /* bitpos */
900 complain_overflow_dont, /* complain_on_overflow */
901 _bfd_mips_elf_generic_reloc, /* special_function */
902 "R_MIPS_HI16", /* name */
903 FALSE, /* partial_inplace */
904 0, /* src_mask */
905 0x0000ffff, /* dst_mask */
906 FALSE), /* pcrel_offset */
907
908 /* Low 16 bits of symbol value. */
909 HOWTO (R_MIPS_LO16, /* type */
910 0, /* rightshift */
911 2, /* size (0 = byte, 1 = short, 2 = long) */
912 16, /* bitsize */
913 FALSE, /* pc_relative */
914 0, /* bitpos */
915 complain_overflow_dont, /* complain_on_overflow */
916 _bfd_mips_elf_generic_reloc, /* special_function */
917 "R_MIPS_LO16", /* name */
918 FALSE, /* partial_inplace */
919 0, /* src_mask */
920 0x0000ffff, /* dst_mask */
921 FALSE), /* pcrel_offset */
922
923 /* GP relative reference. */
924 HOWTO (R_MIPS_GPREL16, /* type */
925 0, /* rightshift */
926 2, /* size (0 = byte, 1 = short, 2 = long) */
927 16, /* bitsize */
928 FALSE, /* pc_relative */
929 0, /* bitpos */
930 complain_overflow_signed, /* complain_on_overflow */
931 mips_elf64_gprel16_reloc, /* special_function */
932 "R_MIPS_GPREL16", /* name */
933 FALSE, /* partial_inplace */
934 0, /* src_mask */
935 0x0000ffff, /* dst_mask */
936 FALSE), /* pcrel_offset */
937
938 /* Reference to literal section. */
939 HOWTO (R_MIPS_LITERAL, /* type */
940 0, /* rightshift */
941 2, /* size (0 = byte, 1 = short, 2 = long) */
942 16, /* bitsize */
943 FALSE, /* pc_relative */
944 0, /* bitpos */
945 complain_overflow_signed, /* complain_on_overflow */
946 mips_elf64_literal_reloc, /* special_function */
947 "R_MIPS_LITERAL", /* name */
948 FALSE, /* partial_inplace */
949 0, /* src_mask */
950 0x0000ffff, /* dst_mask */
951 FALSE), /* pcrel_offset */
952
953 /* Reference to global offset table. */
954 HOWTO (R_MIPS_GOT16, /* type */
955 0, /* rightshift */
956 2, /* size (0 = byte, 1 = short, 2 = long) */
957 16, /* bitsize */
958 FALSE, /* pc_relative */
959 0, /* bitpos */
960 complain_overflow_signed, /* complain_on_overflow */
961 _bfd_mips_elf_generic_reloc, /* special_function */
962 "R_MIPS_GOT16", /* name */
963 FALSE, /* partial_inplace */
964 0, /* src_mask */
965 0x0000ffff, /* dst_mask */
966 FALSE), /* pcrel_offset */
967
968 /* 16 bit PC relative reference. Note that the ABI document has a typo
969 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
970 We do the right thing here. */
971 HOWTO (R_MIPS_PC16, /* type */
972 2, /* rightshift */
973 2, /* size (0 = byte, 1 = short, 2 = long) */
974 16, /* bitsize */
975 TRUE, /* pc_relative */
976 0, /* bitpos */
977 complain_overflow_signed, /* complain_on_overflow */
978 _bfd_mips_elf_generic_reloc, /* special_function */
979 "R_MIPS_PC16", /* name */
980 FALSE, /* partial_inplace */
981 0, /* src_mask */
982 0x0000ffff, /* dst_mask */
983 TRUE), /* pcrel_offset */
984
985 /* 16 bit call through global offset table. */
986 HOWTO (R_MIPS_CALL16, /* type */
987 0, /* rightshift */
988 2, /* size (0 = byte, 1 = short, 2 = long) */
989 16, /* bitsize */
990 FALSE, /* pc_relative */
991 0, /* bitpos */
992 complain_overflow_signed, /* complain_on_overflow */
993 _bfd_mips_elf_generic_reloc, /* special_function */
994 "R_MIPS_CALL16", /* name */
995 FALSE, /* partial_inplace */
996 0, /* src_mask */
997 0x0000ffff, /* dst_mask */
998 FALSE), /* pcrel_offset */
999
1000 /* 32 bit GP relative reference. */
1001 HOWTO (R_MIPS_GPREL32, /* type */
1002 0, /* rightshift */
1003 2, /* size (0 = byte, 1 = short, 2 = long) */
1004 32, /* bitsize */
1005 FALSE, /* pc_relative */
1006 0, /* bitpos */
1007 complain_overflow_dont, /* complain_on_overflow */
1008 mips_elf64_gprel32_reloc, /* special_function */
1009 "R_MIPS_GPREL32", /* name */
1010 FALSE, /* partial_inplace */
1011 0, /* src_mask */
1012 0xffffffff, /* dst_mask */
1013 FALSE), /* pcrel_offset */
1014
1015 EMPTY_HOWTO (13),
1016 EMPTY_HOWTO (14),
1017 EMPTY_HOWTO (15),
1018
1019 /* A 5 bit shift field. */
1020 HOWTO (R_MIPS_SHIFT5, /* type */
1021 0, /* rightshift */
1022 2, /* size (0 = byte, 1 = short, 2 = long) */
1023 5, /* bitsize */
1024 FALSE, /* pc_relative */
1025 6, /* bitpos */
1026 complain_overflow_bitfield, /* complain_on_overflow */
1027 _bfd_mips_elf_generic_reloc, /* special_function */
1028 "R_MIPS_SHIFT5", /* name */
1029 FALSE, /* partial_inplace */
1030 0, /* src_mask */
1031 0x000007c0, /* dst_mask */
1032 FALSE), /* pcrel_offset */
1033
1034 /* A 6 bit shift field. */
1035 HOWTO (R_MIPS_SHIFT6, /* type */
1036 0, /* rightshift */
1037 2, /* size (0 = byte, 1 = short, 2 = long) */
1038 6, /* bitsize */
1039 FALSE, /* pc_relative */
1040 6, /* bitpos */
1041 complain_overflow_bitfield, /* complain_on_overflow */
1042 mips_elf64_shift6_reloc, /* special_function */
1043 "R_MIPS_SHIFT6", /* name */
1044 FALSE, /* partial_inplace */
1045 0, /* src_mask */
1046 0x000007c4, /* dst_mask */
1047 FALSE), /* pcrel_offset */
1048
1049 /* 64 bit relocation. */
1050 HOWTO (R_MIPS_64, /* type */
1051 0, /* rightshift */
1052 4, /* size (0 = byte, 1 = short, 2 = long) */
1053 64, /* bitsize */
1054 FALSE, /* pc_relative */
1055 0, /* bitpos */
1056 complain_overflow_dont, /* complain_on_overflow */
1057 _bfd_mips_elf_generic_reloc, /* special_function */
1058 "R_MIPS_64", /* name */
1059 FALSE, /* partial_inplace */
1060 0, /* src_mask */
1061 MINUS_ONE, /* dst_mask */
1062 FALSE), /* pcrel_offset */
1063
1064 /* Displacement in the global offset table. */
1065 HOWTO (R_MIPS_GOT_DISP, /* type */
1066 0, /* rightshift */
1067 2, /* size (0 = byte, 1 = short, 2 = long) */
1068 16, /* bitsize */
1069 FALSE, /* pc_relative */
1070 0, /* bitpos */
1071 complain_overflow_signed, /* complain_on_overflow */
1072 _bfd_mips_elf_generic_reloc, /* special_function */
1073 "R_MIPS_GOT_DISP", /* name */
1074 FALSE, /* partial_inplace */
1075 0, /* src_mask */
1076 0x0000ffff, /* dst_mask */
1077 FALSE), /* pcrel_offset */
1078
1079 /* Displacement to page pointer in the global offset table. */
1080 HOWTO (R_MIPS_GOT_PAGE, /* type */
1081 0, /* rightshift */
1082 2, /* size (0 = byte, 1 = short, 2 = long) */
1083 16, /* bitsize */
1084 FALSE, /* pc_relative */
1085 0, /* bitpos */
1086 complain_overflow_signed, /* complain_on_overflow */
1087 _bfd_mips_elf_generic_reloc, /* special_function */
1088 "R_MIPS_GOT_PAGE", /* name */
1089 FALSE, /* partial_inplace */
1090 0, /* src_mask */
1091 0x0000ffff, /* dst_mask */
1092 FALSE), /* pcrel_offset */
1093
1094 /* Offset from page pointer in the global offset table. */
1095 HOWTO (R_MIPS_GOT_OFST, /* type */
1096 0, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_signed, /* complain_on_overflow */
1102 _bfd_mips_elf_generic_reloc, /* special_function */
1103 "R_MIPS_GOT_OFST", /* name */
1104 FALSE, /* partial_inplace */
1105 0, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 FALSE), /* pcrel_offset */
1108
1109 /* High 16 bits of displacement in global offset table. */
1110 HOWTO (R_MIPS_GOT_HI16, /* type */
1111 0, /* rightshift */
1112 2, /* size (0 = byte, 1 = short, 2 = long) */
1113 16, /* bitsize */
1114 FALSE, /* pc_relative */
1115 0, /* bitpos */
1116 complain_overflow_dont, /* complain_on_overflow */
1117 _bfd_mips_elf_generic_reloc, /* special_function */
1118 "R_MIPS_GOT_HI16", /* name */
1119 FALSE, /* partial_inplace */
1120 0, /* src_mask */
1121 0x0000ffff, /* dst_mask */
1122 FALSE), /* pcrel_offset */
1123
1124 /* Low 16 bits of displacement in global offset table. */
1125 HOWTO (R_MIPS_GOT_LO16, /* type */
1126 0, /* rightshift */
1127 2, /* size (0 = byte, 1 = short, 2 = long) */
1128 16, /* bitsize */
1129 FALSE, /* pc_relative */
1130 0, /* bitpos */
1131 complain_overflow_dont, /* complain_on_overflow */
1132 _bfd_mips_elf_generic_reloc, /* special_function */
1133 "R_MIPS_GOT_LO16", /* name */
1134 FALSE, /* partial_inplace */
1135 0, /* src_mask */
1136 0x0000ffff, /* dst_mask */
1137 FALSE), /* pcrel_offset */
1138
1139 /* 64 bit subtraction. */
1140 HOWTO (R_MIPS_SUB, /* type */
1141 0, /* rightshift */
1142 4, /* size (0 = byte, 1 = short, 2 = long) */
1143 64, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 _bfd_mips_elf_generic_reloc, /* special_function */
1148 "R_MIPS_SUB", /* name */
1149 FALSE, /* partial_inplace */
1150 0, /* src_mask */
1151 MINUS_ONE, /* dst_mask */
1152 FALSE), /* pcrel_offset */
1153
1154 /* Insert the addend as an instruction. */
1155 /* FIXME: Not handled correctly. */
1156 HOWTO (R_MIPS_INSERT_A, /* 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_A", /* name */
1165 FALSE, /* partial_inplace */
1166 0, /* src_mask */
1167 0xffffffff, /* dst_mask */
1168 FALSE), /* pcrel_offset */
1169
1170 /* Insert the addend as an instruction, and change all relocations
1171 to refer to the old instruction at the address. */
1172 /* FIXME: Not handled correctly. */
1173 HOWTO (R_MIPS_INSERT_B, /* type */
1174 0, /* rightshift */
1175 2, /* size (0 = byte, 1 = short, 2 = long) */
1176 32, /* bitsize */
1177 FALSE, /* pc_relative */
1178 0, /* bitpos */
1179 complain_overflow_dont, /* complain_on_overflow */
1180 _bfd_mips_elf_generic_reloc, /* special_function */
1181 "R_MIPS_INSERT_B", /* name */
1182 FALSE, /* partial_inplace */
1183 0, /* src_mask */
1184 0xffffffff, /* dst_mask */
1185 FALSE), /* pcrel_offset */
1186
1187 /* Delete a 32 bit instruction. */
1188 /* FIXME: Not handled correctly. */
1189 HOWTO (R_MIPS_DELETE, /* type */
1190 0, /* rightshift */
1191 2, /* size (0 = byte, 1 = short, 2 = long) */
1192 32, /* bitsize */
1193 FALSE, /* pc_relative */
1194 0, /* bitpos */
1195 complain_overflow_dont, /* complain_on_overflow */
1196 _bfd_mips_elf_generic_reloc, /* special_function */
1197 "R_MIPS_DELETE", /* name */
1198 FALSE, /* partial_inplace */
1199 0, /* src_mask */
1200 0xffffffff, /* dst_mask */
1201 FALSE), /* pcrel_offset */
1202
1203 /* Get the higher value of a 64 bit addend. */
1204 HOWTO (R_MIPS_HIGHER, /* type */
1205 0, /* rightshift */
1206 2, /* size (0 = byte, 1 = short, 2 = long) */
1207 16, /* bitsize */
1208 FALSE, /* pc_relative */
1209 0, /* bitpos */
1210 complain_overflow_dont, /* complain_on_overflow */
1211 _bfd_mips_elf_generic_reloc, /* special_function */
1212 "R_MIPS_HIGHER", /* name */
1213 FALSE, /* partial_inplace */
1214 0, /* src_mask */
1215 0x0000ffff, /* dst_mask */
1216 FALSE), /* pcrel_offset */
1217
1218 /* Get the highest value of a 64 bit addend. */
1219 HOWTO (R_MIPS_HIGHEST, /* type */
1220 0, /* rightshift */
1221 2, /* size (0 = byte, 1 = short, 2 = long) */
1222 16, /* bitsize */
1223 FALSE, /* pc_relative */
1224 0, /* bitpos */
1225 complain_overflow_dont, /* complain_on_overflow */
1226 _bfd_mips_elf_generic_reloc, /* special_function */
1227 "R_MIPS_HIGHEST", /* name */
1228 FALSE, /* partial_inplace */
1229 0, /* src_mask */
1230 0x0000ffff, /* dst_mask */
1231 FALSE), /* pcrel_offset */
1232
1233 /* High 16 bits of displacement in global offset table. */
1234 HOWTO (R_MIPS_CALL_HI16, /* type */
1235 0, /* rightshift */
1236 2, /* size (0 = byte, 1 = short, 2 = long) */
1237 16, /* bitsize */
1238 FALSE, /* pc_relative */
1239 0, /* bitpos */
1240 complain_overflow_dont, /* complain_on_overflow */
1241 _bfd_mips_elf_generic_reloc, /* special_function */
1242 "R_MIPS_CALL_HI16", /* name */
1243 FALSE, /* partial_inplace */
1244 0, /* src_mask */
1245 0x0000ffff, /* dst_mask */
1246 FALSE), /* pcrel_offset */
1247
1248 /* Low 16 bits of displacement in global offset table. */
1249 HOWTO (R_MIPS_CALL_LO16, /* type */
1250 0, /* rightshift */
1251 2, /* size (0 = byte, 1 = short, 2 = long) */
1252 16, /* bitsize */
1253 FALSE, /* pc_relative */
1254 0, /* bitpos */
1255 complain_overflow_dont, /* complain_on_overflow */
1256 _bfd_mips_elf_generic_reloc, /* special_function */
1257 "R_MIPS_CALL_LO16", /* name */
1258 FALSE, /* partial_inplace */
1259 0, /* src_mask */
1260 0x0000ffff, /* dst_mask */
1261 FALSE), /* pcrel_offset */
1262
1263 /* Section displacement, used by an associated event location section. */
1264 HOWTO (R_MIPS_SCN_DISP, /* type */
1265 0, /* rightshift */
1266 2, /* size (0 = byte, 1 = short, 2 = long) */
1267 32, /* bitsize */
1268 FALSE, /* pc_relative */
1269 0, /* bitpos */
1270 complain_overflow_dont, /* complain_on_overflow */
1271 _bfd_mips_elf_generic_reloc, /* special_function */
1272 "R_MIPS_SCN_DISP", /* name */
1273 FALSE, /* partial_inplace */
1274 0, /* src_mask */
1275 0xffffffff, /* dst_mask */
1276 FALSE), /* pcrel_offset */
1277
1278 HOWTO (R_MIPS_REL16, /* type */
1279 0, /* rightshift */
1280 1, /* size (0 = byte, 1 = short, 2 = long) */
1281 16, /* bitsize */
1282 FALSE, /* pc_relative */
1283 0, /* bitpos */
1284 complain_overflow_signed, /* complain_on_overflow */
1285 _bfd_mips_elf_generic_reloc, /* special_function */
1286 "R_MIPS_REL16", /* name */
1287 FALSE, /* partial_inplace */
1288 0, /* src_mask */
1289 0xffff, /* dst_mask */
1290 FALSE), /* pcrel_offset */
1291
1292 /* These two are obsolete. */
1293 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
1294 EMPTY_HOWTO (R_MIPS_PJUMP),
1295
1296 /* Similiar to R_MIPS_REL32, but used for relocations in a GOT section.
1297 It must be used for multigot GOT's (and only there). */
1298 HOWTO (R_MIPS_RELGOT, /* type */
1299 0, /* rightshift */
1300 2, /* size (0 = byte, 1 = short, 2 = long) */
1301 32, /* bitsize */
1302 FALSE, /* pc_relative */
1303 0, /* bitpos */
1304 complain_overflow_dont, /* complain_on_overflow */
1305 _bfd_mips_elf_generic_reloc, /* special_function */
1306 "R_MIPS_RELGOT", /* name */
1307 FALSE, /* partial_inplace */
1308 0, /* src_mask */
1309 0xffffffff, /* dst_mask */
1310 FALSE), /* pcrel_offset */
1311
1312 /* Protected jump conversion. This is an optimization hint. No
1313 relocation is required for correctness. */
1314 HOWTO (R_MIPS_JALR, /* type */
1315 0, /* rightshift */
1316 2, /* size (0 = byte, 1 = short, 2 = long) */
1317 32, /* bitsize */
1318 FALSE, /* pc_relative */
1319 0, /* bitpos */
1320 complain_overflow_dont, /* complain_on_overflow */
1321 _bfd_mips_elf_generic_reloc, /* special_function */
1322 "R_MIPS_JALR", /* name */
1323 FALSE, /* partial_inplace */
1324 0, /* src_mask */
1325 0x00000000, /* dst_mask */
1326 FALSE), /* pcrel_offset */
1327
1328 /* TLS relocations. */
1329 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
1330 EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
1331
1332 HOWTO (R_MIPS_TLS_DTPMOD64, /* type */
1333 0, /* rightshift */
1334 4, /* size (0 = byte, 1 = short, 2 = long) */
1335 64, /* bitsize */
1336 FALSE, /* pc_relative */
1337 0, /* bitpos */
1338 complain_overflow_dont, /* complain_on_overflow */
1339 _bfd_mips_elf_generic_reloc, /* special_function */
1340 "R_MIPS_TLS_DTPMOD64", /* name */
1341 TRUE, /* partial_inplace */
1342 MINUS_ONE, /* src_mask */
1343 MINUS_ONE, /* dst_mask */
1344 FALSE), /* pcrel_offset */
1345
1346 HOWTO (R_MIPS_TLS_DTPREL64, /* type */
1347 0, /* rightshift */
1348 4, /* size (0 = byte, 1 = short, 2 = long) */
1349 64, /* bitsize */
1350 FALSE, /* pc_relative */
1351 0, /* bitpos */
1352 complain_overflow_dont, /* complain_on_overflow */
1353 _bfd_mips_elf_generic_reloc, /* special_function */
1354 "R_MIPS_TLS_DTPREL64", /* name */
1355 TRUE, /* partial_inplace */
1356 MINUS_ONE, /* src_mask */
1357 MINUS_ONE, /* dst_mask */
1358 FALSE), /* pcrel_offset */
1359
1360 /* TLS general dynamic variable reference. */
1361 HOWTO (R_MIPS_TLS_GD, /* type */
1362 0, /* rightshift */
1363 2, /* size (0 = byte, 1 = short, 2 = long) */
1364 16, /* bitsize */
1365 FALSE, /* pc_relative */
1366 0, /* bitpos */
1367 complain_overflow_signed, /* complain_on_overflow */
1368 _bfd_mips_elf_generic_reloc, /* special_function */
1369 "R_MIPS_TLS_GD", /* name */
1370 TRUE, /* partial_inplace */
1371 0x0000ffff, /* src_mask */
1372 0x0000ffff, /* dst_mask */
1373 FALSE), /* pcrel_offset */
1374
1375 /* TLS local dynamic variable reference. */
1376 HOWTO (R_MIPS_TLS_LDM, /* type */
1377 0, /* rightshift */
1378 2, /* size (0 = byte, 1 = short, 2 = long) */
1379 16, /* bitsize */
1380 FALSE, /* pc_relative */
1381 0, /* bitpos */
1382 complain_overflow_signed, /* complain_on_overflow */
1383 _bfd_mips_elf_generic_reloc, /* special_function */
1384 "R_MIPS_TLS_LDM", /* name */
1385 TRUE, /* partial_inplace */
1386 0x0000ffff, /* src_mask */
1387 0x0000ffff, /* dst_mask */
1388 FALSE), /* pcrel_offset */
1389
1390 /* TLS local dynamic offset. */
1391 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
1392 0, /* rightshift */
1393 2, /* size (0 = byte, 1 = short, 2 = long) */
1394 16, /* bitsize */
1395 FALSE, /* pc_relative */
1396 0, /* bitpos */
1397 complain_overflow_signed, /* complain_on_overflow */
1398 _bfd_mips_elf_generic_reloc, /* special_function */
1399 "R_MIPS_TLS_DTPREL_HI16", /* name */
1400 TRUE, /* partial_inplace */
1401 0x0000ffff, /* src_mask */
1402 0x0000ffff, /* dst_mask */
1403 FALSE), /* pcrel_offset */
1404
1405 /* TLS local dynamic offset. */
1406 HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
1407 0, /* rightshift */
1408 2, /* size (0 = byte, 1 = short, 2 = long) */
1409 16, /* bitsize */
1410 FALSE, /* pc_relative */
1411 0, /* bitpos */
1412 complain_overflow_signed, /* complain_on_overflow */
1413 _bfd_mips_elf_generic_reloc, /* special_function */
1414 "R_MIPS_TLS_DTPREL_LO16", /* name */
1415 TRUE, /* partial_inplace */
1416 0x0000ffff, /* src_mask */
1417 0x0000ffff, /* dst_mask */
1418 FALSE), /* pcrel_offset */
1419
1420 /* TLS thread pointer offset. */
1421 HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
1422 0, /* rightshift */
1423 2, /* size (0 = byte, 1 = short, 2 = long) */
1424 16, /* bitsize */
1425 FALSE, /* pc_relative */
1426 0, /* bitpos */
1427 complain_overflow_signed, /* complain_on_overflow */
1428 _bfd_mips_elf_generic_reloc, /* special_function */
1429 "R_MIPS_TLS_GOTTPREL", /* name */
1430 TRUE, /* partial_inplace */
1431 0x0000ffff, /* src_mask */
1432 0x0000ffff, /* dst_mask */
1433 FALSE), /* pcrel_offset */
1434
1435 /* TLS IE dynamic relocations. */
1436 EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
1437
1438 HOWTO (R_MIPS_TLS_TPREL64, /* type */
1439 0, /* rightshift */
1440 4, /* size (0 = byte, 1 = short, 2 = long) */
1441 64, /* bitsize */
1442 FALSE, /* pc_relative */
1443 0, /* bitpos */
1444 complain_overflow_dont, /* complain_on_overflow */
1445 _bfd_mips_elf_generic_reloc, /* special_function */
1446 "R_MIPS_TLS_TPREL64", /* name */
1447 TRUE, /* partial_inplace */
1448 MINUS_ONE, /* src_mask */
1449 MINUS_ONE, /* dst_mask */
1450 FALSE), /* pcrel_offset */
1451
1452 /* TLS thread pointer offset. */
1453 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
1454 0, /* rightshift */
1455 2, /* size (0 = byte, 1 = short, 2 = long) */
1456 16, /* bitsize */
1457 FALSE, /* pc_relative */
1458 0, /* bitpos */
1459 complain_overflow_signed, /* complain_on_overflow */
1460 _bfd_mips_elf_generic_reloc, /* special_function */
1461 "R_MIPS_TLS_TPREL_HI16", /* name */
1462 TRUE, /* partial_inplace */
1463 0x0000ffff, /* src_mask */
1464 0x0000ffff, /* dst_mask */
1465 FALSE), /* pcrel_offset */
1466
1467 /* TLS thread pointer offset. */
1468 HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
1469 0, /* rightshift */
1470 2, /* size (0 = byte, 1 = short, 2 = long) */
1471 16, /* bitsize */
1472 FALSE, /* pc_relative */
1473 0, /* bitpos */
1474 complain_overflow_signed, /* complain_on_overflow */
1475 _bfd_mips_elf_generic_reloc, /* special_function */
1476 "R_MIPS_TLS_TPREL_LO16", /* name */
1477 TRUE, /* partial_inplace */
1478 0x0000ffff, /* src_mask */
1479 0x0000ffff, /* dst_mask */
1480 FALSE), /* pcrel_offset */
1481
1482 /* 32 bit relocation with no addend. */
1483 HOWTO (R_MIPS_GLOB_DAT, /* type */
1484 0, /* rightshift */
1485 2, /* size (0 = byte, 1 = short, 2 = long) */
1486 32, /* bitsize */
1487 FALSE, /* pc_relative */
1488 0, /* bitpos */
1489 complain_overflow_dont, /* complain_on_overflow */
1490 _bfd_mips_elf_generic_reloc, /* special_function */
1491 "R_MIPS_GLOB_DAT", /* name */
1492 FALSE, /* partial_inplace */
1493 0x0, /* src_mask */
1494 0xffffffff, /* dst_mask */
1495 FALSE), /* pcrel_offset */
1496 };
1497
1498 static reloc_howto_type mips16_elf64_howto_table_rel[] =
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 TRUE, /* 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 TRUE, /* partial_inplace */
1529 0x0000ffff, /* src_mask */
1530 0x0000ffff, /* dst_mask */
1531 FALSE), /* pcrel_offset */
1532
1533 /* A MIPS16 reference to the global offset table. */
1534 HOWTO (R_MIPS16_GOT16, /* type */
1535 0, /* rightshift */
1536 2, /* size (0 = byte, 1 = short, 2 = long) */
1537 16, /* bitsize */
1538 FALSE, /* pc_relative */
1539 0, /* bitpos */
1540 complain_overflow_dont, /* complain_on_overflow */
1541 _bfd_mips_elf_got16_reloc, /* special_function */
1542 "R_MIPS16_GOT16", /* name */
1543 TRUE, /* partial_inplace */
1544 0x0000ffff, /* src_mask */
1545 0x0000ffff, /* dst_mask */
1546 FALSE), /* pcrel_offset */
1547
1548 /* A MIPS16 call through the global offset table. */
1549 HOWTO (R_MIPS16_CALL16, /* type */
1550 0, /* rightshift */
1551 2, /* size (0 = byte, 1 = short, 2 = long) */
1552 16, /* bitsize */
1553 FALSE, /* pc_relative */
1554 0, /* bitpos */
1555 complain_overflow_dont, /* complain_on_overflow */
1556 _bfd_mips_elf_generic_reloc, /* special_function */
1557 "R_MIPS16_CALL16", /* name */
1558 TRUE, /* partial_inplace */
1559 0x0000ffff, /* src_mask */
1560 0x0000ffff, /* dst_mask */
1561 FALSE), /* pcrel_offset */
1562
1563 /* MIPS16 high 16 bits of symbol value. */
1564 HOWTO (R_MIPS16_HI16, /* type */
1565 16, /* rightshift */
1566 2, /* size (0 = byte, 1 = short, 2 = long) */
1567 16, /* bitsize */
1568 FALSE, /* pc_relative */
1569 0, /* bitpos */
1570 complain_overflow_dont, /* complain_on_overflow */
1571 _bfd_mips_elf_hi16_reloc, /* special_function */
1572 "R_MIPS16_HI16", /* name */
1573 TRUE, /* partial_inplace */
1574 0x0000ffff, /* src_mask */
1575 0x0000ffff, /* dst_mask */
1576 FALSE), /* pcrel_offset */
1577
1578 /* MIPS16 low 16 bits of symbol value. */
1579 HOWTO (R_MIPS16_LO16, /* type */
1580 0, /* rightshift */
1581 2, /* size (0 = byte, 1 = short, 2 = long) */
1582 16, /* bitsize */
1583 FALSE, /* pc_relative */
1584 0, /* bitpos */
1585 complain_overflow_dont, /* complain_on_overflow */
1586 _bfd_mips_elf_lo16_reloc, /* special_function */
1587 "R_MIPS16_LO16", /* name */
1588 TRUE, /* partial_inplace */
1589 0x0000ffff, /* src_mask */
1590 0x0000ffff, /* dst_mask */
1591 FALSE), /* pcrel_offset */
1592 };
1593
1594 static reloc_howto_type mips16_elf64_howto_table_rela[] =
1595 {
1596 /* The reloc used for the mips16 jump instruction. */
1597 HOWTO (R_MIPS16_26, /* type */
1598 2, /* rightshift */
1599 2, /* size (0 = byte, 1 = short, 2 = long) */
1600 26, /* bitsize */
1601 FALSE, /* pc_relative */
1602 0, /* bitpos */
1603 complain_overflow_dont, /* complain_on_overflow */
1604 /* This needs complex overflow
1605 detection, because the upper four
1606 bits must match the PC. */
1607 _bfd_mips_elf_generic_reloc, /* special_function */
1608 "R_MIPS16_26", /* name */
1609 FALSE, /* partial_inplace */
1610 0x3ffffff, /* src_mask */
1611 0x3ffffff, /* dst_mask */
1612 FALSE), /* pcrel_offset */
1613
1614 /* The reloc used for the mips16 gprel instruction. */
1615 HOWTO (R_MIPS16_GPREL, /* type */
1616 0, /* rightshift */
1617 2, /* size (0 = byte, 1 = short, 2 = long) */
1618 16, /* bitsize */
1619 FALSE, /* pc_relative */
1620 0, /* bitpos */
1621 complain_overflow_signed, /* complain_on_overflow */
1622 mips16_gprel_reloc, /* special_function */
1623 "R_MIPS16_GPREL", /* name */
1624 FALSE, /* partial_inplace */
1625 0x0000ffff, /* src_mask */
1626 0x0000ffff, /* dst_mask */
1627 FALSE), /* pcrel_offset */
1628
1629 /* A MIPS16 reference to the global offset table. */
1630 HOWTO (R_MIPS16_GOT16, /* type */
1631 0, /* rightshift */
1632 2, /* size (0 = byte, 1 = short, 2 = long) */
1633 16, /* bitsize */
1634 FALSE, /* pc_relative */
1635 0, /* bitpos */
1636 complain_overflow_dont, /* complain_on_overflow */
1637 _bfd_mips_elf_got16_reloc, /* special_function */
1638 "R_MIPS16_GOT16", /* name */
1639 FALSE, /* partial_inplace */
1640 0x0000ffff, /* src_mask */
1641 0x0000ffff, /* dst_mask */
1642 FALSE), /* pcrel_offset */
1643
1644 /* A MIPS16 call through the global offset table. */
1645 HOWTO (R_MIPS16_CALL16, /* type */
1646 0, /* rightshift */
1647 2, /* size (0 = byte, 1 = short, 2 = long) */
1648 16, /* bitsize */
1649 FALSE, /* pc_relative */
1650 0, /* bitpos */
1651 complain_overflow_dont, /* complain_on_overflow */
1652 _bfd_mips_elf_generic_reloc, /* special_function */
1653 "R_MIPS16_CALL16", /* name */
1654 FALSE, /* partial_inplace */
1655 0x0000ffff, /* src_mask */
1656 0x0000ffff, /* dst_mask */
1657 FALSE), /* pcrel_offset */
1658
1659 /* MIPS16 high 16 bits of symbol value. */
1660 HOWTO (R_MIPS16_HI16, /* type */
1661 16, /* rightshift */
1662 2, /* size (0 = byte, 1 = short, 2 = long) */
1663 16, /* bitsize */
1664 FALSE, /* pc_relative */
1665 0, /* bitpos */
1666 complain_overflow_dont, /* complain_on_overflow */
1667 _bfd_mips_elf_hi16_reloc, /* special_function */
1668 "R_MIPS16_HI16", /* name */
1669 FALSE, /* partial_inplace */
1670 0x0000ffff, /* src_mask */
1671 0x0000ffff, /* dst_mask */
1672 FALSE), /* pcrel_offset */
1673
1674 /* MIPS16 low 16 bits of symbol value. */
1675 HOWTO (R_MIPS16_LO16, /* type */
1676 0, /* rightshift */
1677 2, /* size (0 = byte, 1 = short, 2 = long) */
1678 16, /* bitsize */
1679 FALSE, /* pc_relative */
1680 0, /* bitpos */
1681 complain_overflow_dont, /* complain_on_overflow */
1682 _bfd_mips_elf_lo16_reloc, /* special_function */
1683 "R_MIPS16_LO16", /* name */
1684 FALSE, /* partial_inplace */
1685 0x0000ffff, /* src_mask */
1686 0x0000ffff, /* dst_mask */
1687 FALSE), /* pcrel_offset */
1688 };
1689
1690 /* GNU extension to record C++ vtable hierarchy */
1691 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1692 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1693 0, /* rightshift */
1694 2, /* size (0 = byte, 1 = short, 2 = long) */
1695 0, /* bitsize */
1696 FALSE, /* pc_relative */
1697 0, /* bitpos */
1698 complain_overflow_dont, /* complain_on_overflow */
1699 NULL, /* special_function */
1700 "R_MIPS_GNU_VTINHERIT", /* name */
1701 FALSE, /* partial_inplace */
1702 0, /* src_mask */
1703 0, /* dst_mask */
1704 FALSE); /* pcrel_offset */
1705
1706 /* GNU extension to record C++ vtable member usage */
1707 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1708 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1709 0, /* rightshift */
1710 2, /* size (0 = byte, 1 = short, 2 = long) */
1711 0, /* bitsize */
1712 FALSE, /* pc_relative */
1713 0, /* bitpos */
1714 complain_overflow_dont, /* complain_on_overflow */
1715 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1716 "R_MIPS_GNU_VTENTRY", /* name */
1717 FALSE, /* partial_inplace */
1718 0, /* src_mask */
1719 0, /* dst_mask */
1720 FALSE); /* pcrel_offset */
1721 \f
1722 /* 16 bit offset for pc-relative branches. */
1723 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1724 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1725 2, /* rightshift */
1726 2, /* size (0 = byte, 1 = short, 2 = long) */
1727 16, /* bitsize */
1728 TRUE, /* pc_relative */
1729 0, /* bitpos */
1730 complain_overflow_signed, /* complain_on_overflow */
1731 _bfd_mips_elf_generic_reloc, /* special_function */
1732 "R_MIPS_GNU_REL16_S2", /* name */
1733 TRUE, /* partial_inplace */
1734 0x0000ffff, /* src_mask */
1735 0x0000ffff, /* dst_mask */
1736 TRUE); /* pcrel_offset */
1737
1738 /* 16 bit offset for pc-relative branches. */
1739 static reloc_howto_type elf_mips_gnu_rela16_s2 =
1740 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1741 2, /* rightshift */
1742 2, /* size (0 = byte, 1 = short, 2 = long) */
1743 16, /* bitsize */
1744 TRUE, /* pc_relative */
1745 0, /* bitpos */
1746 complain_overflow_signed, /* complain_on_overflow */
1747 _bfd_mips_elf_generic_reloc, /* special_function */
1748 "R_MIPS_GNU_REL16_S2", /* name */
1749 FALSE, /* partial_inplace */
1750 0, /* src_mask */
1751 0x0000ffff, /* dst_mask */
1752 TRUE); /* pcrel_offset */
1753 \f
1754 /* Originally a VxWorks extension, but now used for other systems too. */
1755 static reloc_howto_type elf_mips_copy_howto =
1756 HOWTO (R_MIPS_COPY, /* type */
1757 0, /* rightshift */
1758 0, /* this one is variable size */
1759 0, /* bitsize */
1760 FALSE, /* pc_relative */
1761 0, /* bitpos */
1762 complain_overflow_bitfield, /* complain_on_overflow */
1763 bfd_elf_generic_reloc, /* special_function */
1764 "R_MIPS_COPY", /* name */
1765 FALSE, /* partial_inplace */
1766 0x0, /* src_mask */
1767 0x0, /* dst_mask */
1768 FALSE); /* pcrel_offset */
1769
1770 /* Originally a VxWorks extension, but now used for other systems too. */
1771 static reloc_howto_type elf_mips_jump_slot_howto =
1772 HOWTO (R_MIPS_JUMP_SLOT, /* type */
1773 0, /* rightshift */
1774 4, /* size (0 = byte, 1 = short, 2 = long) */
1775 64, /* bitsize */
1776 FALSE, /* pc_relative */
1777 0, /* bitpos */
1778 complain_overflow_bitfield, /* complain_on_overflow */
1779 bfd_elf_generic_reloc, /* special_function */
1780 "R_MIPS_JUMP_SLOT", /* name */
1781 FALSE, /* partial_inplace */
1782 0x0, /* src_mask */
1783 0x0, /* dst_mask */
1784 FALSE); /* pcrel_offset */
1785 \f
1786 /* Swap in a MIPS 64-bit Rel reloc. */
1787
1788 static void
1789 mips_elf64_swap_reloc_in (bfd *abfd, const Elf64_Mips_External_Rel *src,
1790 Elf64_Mips_Internal_Rela *dst)
1791 {
1792 dst->r_offset = H_GET_64 (abfd, src->r_offset);
1793 dst->r_sym = H_GET_32 (abfd, src->r_sym);
1794 dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
1795 dst->r_type3 = H_GET_8 (abfd, src->r_type3);
1796 dst->r_type2 = H_GET_8 (abfd, src->r_type2);
1797 dst->r_type = H_GET_8 (abfd, src->r_type);
1798 dst->r_addend = 0;
1799 }
1800
1801 /* Swap in a MIPS 64-bit Rela reloc. */
1802
1803 static void
1804 mips_elf64_swap_reloca_in (bfd *abfd, const Elf64_Mips_External_Rela *src,
1805 Elf64_Mips_Internal_Rela *dst)
1806 {
1807 dst->r_offset = H_GET_64 (abfd, src->r_offset);
1808 dst->r_sym = H_GET_32 (abfd, src->r_sym);
1809 dst->r_ssym = H_GET_8 (abfd, src->r_ssym);
1810 dst->r_type3 = H_GET_8 (abfd, src->r_type3);
1811 dst->r_type2 = H_GET_8 (abfd, src->r_type2);
1812 dst->r_type = H_GET_8 (abfd, src->r_type);
1813 dst->r_addend = H_GET_S64 (abfd, src->r_addend);
1814 }
1815
1816 /* Swap out a MIPS 64-bit Rel reloc. */
1817
1818 static void
1819 mips_elf64_swap_reloc_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src,
1820 Elf64_Mips_External_Rel *dst)
1821 {
1822 H_PUT_64 (abfd, src->r_offset, dst->r_offset);
1823 H_PUT_32 (abfd, src->r_sym, dst->r_sym);
1824 H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
1825 H_PUT_8 (abfd, src->r_type3, dst->r_type3);
1826 H_PUT_8 (abfd, src->r_type2, dst->r_type2);
1827 H_PUT_8 (abfd, src->r_type, dst->r_type);
1828 }
1829
1830 /* Swap out a MIPS 64-bit Rela reloc. */
1831
1832 static void
1833 mips_elf64_swap_reloca_out (bfd *abfd, const Elf64_Mips_Internal_Rela *src,
1834 Elf64_Mips_External_Rela *dst)
1835 {
1836 H_PUT_64 (abfd, src->r_offset, dst->r_offset);
1837 H_PUT_32 (abfd, src->r_sym, dst->r_sym);
1838 H_PUT_8 (abfd, src->r_ssym, dst->r_ssym);
1839 H_PUT_8 (abfd, src->r_type3, dst->r_type3);
1840 H_PUT_8 (abfd, src->r_type2, dst->r_type2);
1841 H_PUT_8 (abfd, src->r_type, dst->r_type);
1842 H_PUT_S64 (abfd, src->r_addend, dst->r_addend);
1843 }
1844
1845 /* Swap in a MIPS 64-bit Rel reloc. */
1846
1847 static void
1848 mips_elf64_be_swap_reloc_in (bfd *abfd, const bfd_byte *src,
1849 Elf_Internal_Rela *dst)
1850 {
1851 Elf64_Mips_Internal_Rela mirel;
1852
1853 mips_elf64_swap_reloc_in (abfd,
1854 (const Elf64_Mips_External_Rel *) src,
1855 &mirel);
1856
1857 dst[0].r_offset = mirel.r_offset;
1858 dst[0].r_info = ELF64_R_INFO (mirel.r_sym, mirel.r_type);
1859 dst[0].r_addend = 0;
1860 dst[1].r_offset = mirel.r_offset;
1861 dst[1].r_info = ELF64_R_INFO (mirel.r_ssym, mirel.r_type2);
1862 dst[1].r_addend = 0;
1863 dst[2].r_offset = mirel.r_offset;
1864 dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirel.r_type3);
1865 dst[2].r_addend = 0;
1866 }
1867
1868 /* Swap in a MIPS 64-bit Rela reloc. */
1869
1870 static void
1871 mips_elf64_be_swap_reloca_in (bfd *abfd, const bfd_byte *src,
1872 Elf_Internal_Rela *dst)
1873 {
1874 Elf64_Mips_Internal_Rela mirela;
1875
1876 mips_elf64_swap_reloca_in (abfd,
1877 (const Elf64_Mips_External_Rela *) src,
1878 &mirela);
1879
1880 dst[0].r_offset = mirela.r_offset;
1881 dst[0].r_info = ELF64_R_INFO (mirela.r_sym, mirela.r_type);
1882 dst[0].r_addend = mirela.r_addend;
1883 dst[1].r_offset = mirela.r_offset;
1884 dst[1].r_info = ELF64_R_INFO (mirela.r_ssym, mirela.r_type2);
1885 dst[1].r_addend = 0;
1886 dst[2].r_offset = mirela.r_offset;
1887 dst[2].r_info = ELF64_R_INFO (STN_UNDEF, mirela.r_type3);
1888 dst[2].r_addend = 0;
1889 }
1890
1891 /* Swap out a MIPS 64-bit Rel reloc. */
1892
1893 static void
1894 mips_elf64_be_swap_reloc_out (bfd *abfd, const Elf_Internal_Rela *src,
1895 bfd_byte *dst)
1896 {
1897 Elf64_Mips_Internal_Rela mirel;
1898
1899 mirel.r_offset = src[0].r_offset;
1900 BFD_ASSERT(src[0].r_offset == src[1].r_offset);
1901
1902 mirel.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
1903 mirel.r_sym = ELF64_R_SYM (src[0].r_info);
1904 mirel.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info);
1905 mirel.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
1906 mirel.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info);
1907
1908 mips_elf64_swap_reloc_out (abfd, &mirel,
1909 (Elf64_Mips_External_Rel *) dst);
1910 }
1911
1912 /* Swap out a MIPS 64-bit Rela reloc. */
1913
1914 static void
1915 mips_elf64_be_swap_reloca_out (bfd *abfd, const Elf_Internal_Rela *src,
1916 bfd_byte *dst)
1917 {
1918 Elf64_Mips_Internal_Rela mirela;
1919
1920 mirela.r_offset = src[0].r_offset;
1921 BFD_ASSERT(src[0].r_offset == src[1].r_offset);
1922 BFD_ASSERT(src[0].r_offset == src[2].r_offset);
1923
1924 mirela.r_type = ELF64_MIPS_R_TYPE (src[0].r_info);
1925 mirela.r_sym = ELF64_R_SYM (src[0].r_info);
1926 mirela.r_addend = src[0].r_addend;
1927 BFD_ASSERT(src[1].r_addend == 0);
1928 BFD_ASSERT(src[2].r_addend == 0);
1929
1930 mirela.r_type2 = ELF64_MIPS_R_TYPE (src[1].r_info);
1931 mirela.r_ssym = ELF64_MIPS_R_SSYM (src[1].r_info);
1932 mirela.r_type3 = ELF64_MIPS_R_TYPE (src[2].r_info);
1933
1934 mips_elf64_swap_reloca_out (abfd, &mirela,
1935 (Elf64_Mips_External_Rela *) dst);
1936 }
1937 \f
1938 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1939 dangerous relocation. */
1940
1941 static bfd_boolean
1942 mips_elf64_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1943 {
1944 unsigned int count;
1945 asymbol **sym;
1946 unsigned int i;
1947
1948 /* If we've already figured out what GP will be, just return it. */
1949 *pgp = _bfd_get_gp_value (output_bfd);
1950 if (*pgp)
1951 return TRUE;
1952
1953 count = bfd_get_symcount (output_bfd);
1954 sym = bfd_get_outsymbols (output_bfd);
1955
1956 /* The linker script will have created a symbol named `_gp' with the
1957 appropriate value. */
1958 if (sym == NULL)
1959 i = count;
1960 else
1961 {
1962 for (i = 0; i < count; i++, sym++)
1963 {
1964 register const char *name;
1965
1966 name = bfd_asymbol_name (*sym);
1967 if (*name == '_' && strcmp (name, "_gp") == 0)
1968 {
1969 *pgp = bfd_asymbol_value (*sym);
1970 _bfd_set_gp_value (output_bfd, *pgp);
1971 break;
1972 }
1973 }
1974 }
1975
1976 if (i >= count)
1977 {
1978 /* Only get the error once. */
1979 *pgp = 4;
1980 _bfd_set_gp_value (output_bfd, *pgp);
1981 return FALSE;
1982 }
1983
1984 return TRUE;
1985 }
1986
1987 /* We have to figure out the gp value, so that we can adjust the
1988 symbol value correctly. We look up the symbol _gp in the output
1989 BFD. If we can't find it, we're stuck. We cache it in the ELF
1990 target data. We don't need to adjust the symbol value for an
1991 external symbol if we are producing relocatable output. */
1992
1993 static bfd_reloc_status_type
1994 mips_elf64_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1995 char **error_message, bfd_vma *pgp)
1996 {
1997 if (bfd_is_und_section (symbol->section)
1998 && ! relocatable)
1999 {
2000 *pgp = 0;
2001 return bfd_reloc_undefined;
2002 }
2003
2004 *pgp = _bfd_get_gp_value (output_bfd);
2005 if (*pgp == 0
2006 && (! relocatable
2007 || (symbol->flags & BSF_SECTION_SYM) != 0))
2008 {
2009 if (relocatable)
2010 {
2011 /* Make up a value. */
2012 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
2013 _bfd_set_gp_value (output_bfd, *pgp);
2014 }
2015 else if (!mips_elf64_assign_gp (output_bfd, pgp))
2016 {
2017 *error_message =
2018 (char *) _("GP relative relocation when _gp not defined");
2019 return bfd_reloc_dangerous;
2020 }
2021 }
2022
2023 return bfd_reloc_ok;
2024 }
2025
2026 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
2027 become the offset from the gp register. */
2028
2029 static bfd_reloc_status_type
2030 mips_elf64_gprel16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2031 void *data, asection *input_section, bfd *output_bfd,
2032 char **error_message)
2033 {
2034 bfd_boolean relocatable;
2035 bfd_reloc_status_type ret;
2036 bfd_vma gp;
2037
2038 /* If we're relocating, and this is an external symbol, we don't want
2039 to change anything. */
2040 if (output_bfd != NULL
2041 && (symbol->flags & BSF_SECTION_SYM) == 0
2042 && (symbol->flags & BSF_LOCAL) != 0)
2043 {
2044 reloc_entry->address += input_section->output_offset;
2045 return bfd_reloc_ok;
2046 }
2047
2048 if (output_bfd != NULL)
2049 relocatable = TRUE;
2050 else
2051 {
2052 relocatable = FALSE;
2053 output_bfd = symbol->section->output_section->owner;
2054 }
2055
2056 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
2057 &gp);
2058 if (ret != bfd_reloc_ok)
2059 return ret;
2060
2061 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
2062 input_section, relocatable,
2063 data, gp);
2064 }
2065
2066 /* Do a R_MIPS_LITERAL relocation. */
2067
2068 static bfd_reloc_status_type
2069 mips_elf64_literal_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2070 void *data, asection *input_section, bfd *output_bfd,
2071 char **error_message)
2072 {
2073 bfd_boolean relocatable;
2074 bfd_reloc_status_type ret;
2075 bfd_vma gp;
2076
2077 /* R_MIPS_LITERAL relocations are defined for local symbols only. */
2078 if (output_bfd != NULL
2079 && (symbol->flags & BSF_SECTION_SYM) == 0
2080 && (symbol->flags & BSF_LOCAL) != 0)
2081 {
2082 *error_message = (char *)
2083 _("literal relocation occurs for an external symbol");
2084 return bfd_reloc_outofrange;
2085 }
2086
2087 /* FIXME: The entries in the .lit8 and .lit4 sections should be merged. */
2088 if (output_bfd != NULL)
2089 relocatable = TRUE;
2090 else
2091 {
2092 relocatable = FALSE;
2093 output_bfd = symbol->section->output_section->owner;
2094 }
2095
2096 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
2097 &gp);
2098 if (ret != bfd_reloc_ok)
2099 return ret;
2100
2101 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
2102 input_section, relocatable,
2103 data, gp);
2104 }
2105
2106 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
2107 become the offset from the gp register. */
2108
2109 static bfd_reloc_status_type
2110 mips_elf64_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2111 void *data, asection *input_section, bfd *output_bfd,
2112 char **error_message)
2113 {
2114 bfd_boolean relocatable;
2115 bfd_reloc_status_type ret;
2116 bfd_vma gp;
2117 bfd_vma relocation;
2118 bfd_vma val;
2119
2120 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
2121 if (output_bfd != NULL
2122 && (symbol->flags & BSF_SECTION_SYM) == 0
2123 && (symbol->flags & BSF_LOCAL) != 0)
2124 {
2125 *error_message = (char *)
2126 _("32bits gp relative relocation occurs for an external symbol");
2127 return bfd_reloc_outofrange;
2128 }
2129
2130 if (output_bfd != NULL)
2131 relocatable = TRUE;
2132 else
2133 {
2134 relocatable = FALSE;
2135 output_bfd = symbol->section->output_section->owner;
2136 }
2137
2138 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable,
2139 error_message, &gp);
2140 if (ret != bfd_reloc_ok)
2141 return ret;
2142
2143 if (bfd_is_com_section (symbol->section))
2144 relocation = 0;
2145 else
2146 relocation = symbol->value;
2147
2148 relocation += symbol->section->output_section->vma;
2149 relocation += symbol->section->output_offset;
2150
2151 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
2152 return bfd_reloc_outofrange;
2153
2154 /* Set val to the offset into the section or symbol. */
2155 val = reloc_entry->addend;
2156
2157 if (reloc_entry->howto->partial_inplace)
2158 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
2159
2160 /* Adjust val for the final section location and GP value. If we
2161 are producing relocatable output, we don't want to do this for
2162 an external symbol. */
2163 if (! relocatable
2164 || (symbol->flags & BSF_SECTION_SYM) != 0)
2165 val += relocation - gp;
2166
2167 if (reloc_entry->howto->partial_inplace)
2168 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
2169 else
2170 reloc_entry->addend = val;
2171
2172 if (relocatable)
2173 reloc_entry->address += input_section->output_offset;
2174
2175 return bfd_reloc_ok;
2176 }
2177
2178 /* Do a R_MIPS_SHIFT6 relocation. The MSB of the shift is stored at bit 2,
2179 the rest is at bits 6-10. The bitpos already got right by the howto. */
2180
2181 static bfd_reloc_status_type
2182 mips_elf64_shift6_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2183 void *data, asection *input_section, bfd *output_bfd,
2184 char **error_message)
2185 {
2186 if (reloc_entry->howto->partial_inplace)
2187 {
2188 reloc_entry->addend = ((reloc_entry->addend & 0x00007c0)
2189 | (reloc_entry->addend & 0x00000800) >> 9);
2190 }
2191
2192 return _bfd_mips_elf_generic_reloc (abfd, reloc_entry, symbol, data,
2193 input_section, output_bfd,
2194 error_message);
2195 }
2196
2197 /* Handle a mips16 GP relative reloc. */
2198
2199 static bfd_reloc_status_type
2200 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2201 void *data, asection *input_section, bfd *output_bfd,
2202 char **error_message)
2203 {
2204 bfd_boolean relocatable;
2205 bfd_reloc_status_type ret;
2206 bfd_byte *location;
2207 bfd_vma gp;
2208
2209 /* If we're relocating, and this is an external symbol, we don't want
2210 to change anything. */
2211 if (output_bfd != NULL
2212 && (symbol->flags & BSF_SECTION_SYM) == 0
2213 && (symbol->flags & BSF_LOCAL) != 0)
2214 {
2215 reloc_entry->address += input_section->output_offset;
2216 return bfd_reloc_ok;
2217 }
2218
2219 if (output_bfd != NULL)
2220 relocatable = TRUE;
2221 else
2222 {
2223 relocatable = FALSE;
2224 output_bfd = symbol->section->output_section->owner;
2225 }
2226
2227 ret = mips_elf64_final_gp (output_bfd, symbol, relocatable, error_message,
2228 &gp);
2229 if (ret != bfd_reloc_ok)
2230 return ret;
2231
2232 location = (bfd_byte *) data + reloc_entry->address;
2233 _bfd_mips16_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
2234 location);
2235 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
2236 input_section, relocatable,
2237 data, gp);
2238 _bfd_mips16_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
2239 location);
2240
2241 return ret;
2242 }
2243 \f
2244 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
2245
2246 struct elf_reloc_map {
2247 bfd_reloc_code_real_type bfd_val;
2248 enum elf_mips_reloc_type elf_val;
2249 };
2250
2251 static const struct elf_reloc_map mips_reloc_map[] =
2252 {
2253 { BFD_RELOC_NONE, R_MIPS_NONE },
2254 { BFD_RELOC_16, R_MIPS_16 },
2255 { BFD_RELOC_32, R_MIPS_32 },
2256 /* There is no BFD reloc for R_MIPS_REL32. */
2257 { BFD_RELOC_64, R_MIPS_64 },
2258 { BFD_RELOC_CTOR, R_MIPS_64 },
2259 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
2260 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
2261 { BFD_RELOC_LO16, R_MIPS_LO16 },
2262 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
2263 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
2264 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
2265 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
2266 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
2267 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
2268 { BFD_RELOC_MIPS_SHIFT5, R_MIPS_SHIFT5 },
2269 { BFD_RELOC_MIPS_SHIFT6, R_MIPS_SHIFT6 },
2270 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
2271 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
2272 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
2273 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
2274 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
2275 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
2276 { BFD_RELOC_MIPS_INSERT_A, R_MIPS_INSERT_A },
2277 { BFD_RELOC_MIPS_INSERT_B, R_MIPS_INSERT_B },
2278 { BFD_RELOC_MIPS_DELETE, R_MIPS_DELETE },
2279 { BFD_RELOC_MIPS_HIGHEST, R_MIPS_HIGHEST },
2280 { BFD_RELOC_MIPS_HIGHER, R_MIPS_HIGHER },
2281 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
2282 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
2283 { BFD_RELOC_MIPS_SCN_DISP, R_MIPS_SCN_DISP },
2284 { BFD_RELOC_MIPS_REL16, R_MIPS_REL16 },
2285 /* Use of R_MIPS_ADD_IMMEDIATE and R_MIPS_PJUMP is deprecated. */
2286 { BFD_RELOC_MIPS_RELGOT, R_MIPS_RELGOT },
2287 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
2288 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
2289 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
2290 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
2291 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
2292 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
2293 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
2294 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
2295 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
2296 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
2297 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
2298 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
2299 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
2300 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
2301 };
2302
2303 static const struct elf_reloc_map mips16_reloc_map[] =
2304 {
2305 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
2306 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
2307 { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min },
2308 { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min },
2309 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
2310 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
2311 };
2312
2313 /* Given a BFD reloc type, return a howto structure. */
2314
2315 static reloc_howto_type *
2316 bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2317 bfd_reloc_code_real_type code)
2318 {
2319 unsigned int i;
2320 /* FIXME: We default to RELA here instead of choosing the right
2321 relocation variant. */
2322 reloc_howto_type *howto_table = mips_elf64_howto_table_rela;
2323 reloc_howto_type *howto16_table = mips16_elf64_howto_table_rela;
2324
2325 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
2326 i++)
2327 {
2328 if (mips_reloc_map[i].bfd_val == code)
2329 return &howto_table[(int) mips_reloc_map[i].elf_val];
2330 }
2331
2332 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
2333 i++)
2334 {
2335 if (mips16_reloc_map[i].bfd_val == code)
2336 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
2337 }
2338
2339 switch (code)
2340 {
2341 case BFD_RELOC_VTABLE_INHERIT:
2342 return &elf_mips_gnu_vtinherit_howto;
2343 case BFD_RELOC_VTABLE_ENTRY:
2344 return &elf_mips_gnu_vtentry_howto;
2345 case BFD_RELOC_MIPS_COPY:
2346 return &elf_mips_copy_howto;
2347 case BFD_RELOC_MIPS_JUMP_SLOT:
2348 return &elf_mips_jump_slot_howto;
2349 default:
2350 bfd_set_error (bfd_error_bad_value);
2351 return NULL;
2352 }
2353 }
2354
2355 static reloc_howto_type *
2356 bfd_elf64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2357 const char *r_name)
2358 {
2359 unsigned int i;
2360
2361 for (i = 0;
2362 i < (sizeof (mips_elf64_howto_table_rela)
2363 / sizeof (mips_elf64_howto_table_rela[0])); i++)
2364 if (mips_elf64_howto_table_rela[i].name != NULL
2365 && strcasecmp (mips_elf64_howto_table_rela[i].name, r_name) == 0)
2366 return &mips_elf64_howto_table_rela[i];
2367
2368 for (i = 0;
2369 i < (sizeof (mips16_elf64_howto_table_rela)
2370 / sizeof (mips16_elf64_howto_table_rela[0]));
2371 i++)
2372 if (mips16_elf64_howto_table_rela[i].name != NULL
2373 && strcasecmp (mips16_elf64_howto_table_rela[i].name, r_name) == 0)
2374 return &mips16_elf64_howto_table_rela[i];
2375
2376 if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
2377 return &elf_mips_gnu_vtinherit_howto;
2378 if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
2379 return &elf_mips_gnu_vtentry_howto;
2380 if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
2381 return &elf_mips_gnu_rel16_s2;
2382 if (strcasecmp (elf_mips_gnu_rela16_s2.name, r_name) == 0)
2383 return &elf_mips_gnu_rela16_s2;
2384 if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0)
2385 return &elf_mips_copy_howto;
2386 if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
2387 return &elf_mips_jump_slot_howto;
2388
2389 return NULL;
2390 }
2391
2392 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2393
2394 static reloc_howto_type *
2395 mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p)
2396 {
2397 switch (r_type)
2398 {
2399 case R_MIPS_GNU_VTINHERIT:
2400 return &elf_mips_gnu_vtinherit_howto;
2401 case R_MIPS_GNU_VTENTRY:
2402 return &elf_mips_gnu_vtentry_howto;
2403 case R_MIPS_GNU_REL16_S2:
2404 if (rela_p)
2405 return &elf_mips_gnu_rela16_s2;
2406 else
2407 return &elf_mips_gnu_rel16_s2;
2408 case R_MIPS_COPY:
2409 return &elf_mips_copy_howto;
2410 case R_MIPS_JUMP_SLOT:
2411 return &elf_mips_jump_slot_howto;
2412 default:
2413 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
2414 {
2415 if (rela_p)
2416 return &mips16_elf64_howto_table_rela[r_type - R_MIPS16_min];
2417 else
2418 return &mips16_elf64_howto_table_rel[r_type - R_MIPS16_min];
2419 }
2420 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2421 if (rela_p)
2422 return &mips_elf64_howto_table_rela[r_type];
2423 else
2424 return &mips_elf64_howto_table_rel[r_type];
2425 break;
2426 }
2427 }
2428
2429 /* Prevent relocation handling by bfd for MIPS ELF64. */
2430
2431 static void
2432 mips_elf64_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
2433 arelent *cache_ptr ATTRIBUTE_UNUSED,
2434 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
2435 {
2436 BFD_ASSERT (0);
2437 }
2438
2439 static void
2440 mips_elf64_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
2441 arelent *cache_ptr ATTRIBUTE_UNUSED,
2442 Elf_Internal_Rela *dst ATTRIBUTE_UNUSED)
2443 {
2444 BFD_ASSERT (0);
2445 }
2446
2447 /* Since each entry in an SHT_REL or SHT_RELA section can represent up
2448 to three relocs, we must tell the user to allocate more space. */
2449
2450 static long
2451 mips_elf64_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
2452 {
2453 return (sec->reloc_count * 3 + 1) * sizeof (arelent *);
2454 }
2455
2456 static long
2457 mips_elf64_get_dynamic_reloc_upper_bound (bfd *abfd)
2458 {
2459 return _bfd_elf_get_dynamic_reloc_upper_bound (abfd) * 3;
2460 }
2461
2462 /* We must also copy more relocations than the corresponding functions
2463 in elf.c would, so the two following functions are slightly
2464 modified from elf.c, that multiply the external relocation count by
2465 3 to obtain the internal relocation count. */
2466
2467 static long
2468 mips_elf64_canonicalize_reloc (bfd *abfd, sec_ptr section,
2469 arelent **relptr, asymbol **symbols)
2470 {
2471 arelent *tblptr;
2472 unsigned int i;
2473 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
2474
2475 if (! bed->s->slurp_reloc_table (abfd, section, symbols, FALSE))
2476 return -1;
2477
2478 tblptr = section->relocation;
2479 for (i = 0; i < section->reloc_count * 3; i++)
2480 *relptr++ = tblptr++;
2481
2482 *relptr = NULL;
2483
2484 return section->reloc_count * 3;
2485 }
2486
2487 static long
2488 mips_elf64_canonicalize_dynamic_reloc (bfd *abfd, arelent **storage,
2489 asymbol **syms)
2490 {
2491 bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean);
2492 asection *s;
2493 long ret;
2494
2495 if (elf_dynsymtab (abfd) == 0)
2496 {
2497 bfd_set_error (bfd_error_invalid_operation);
2498 return -1;
2499 }
2500
2501 slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table;
2502 ret = 0;
2503 for (s = abfd->sections; s != NULL; s = s->next)
2504 {
2505 if (elf_section_data (s)->this_hdr.sh_link == elf_dynsymtab (abfd)
2506 && (elf_section_data (s)->this_hdr.sh_type == SHT_REL
2507 || elf_section_data (s)->this_hdr.sh_type == SHT_RELA))
2508 {
2509 arelent *p;
2510 long count, i;
2511
2512 if (! (*slurp_relocs) (abfd, s, syms, TRUE))
2513 return -1;
2514 count = s->size / elf_section_data (s)->this_hdr.sh_entsize * 3;
2515 p = s->relocation;
2516 for (i = 0; i < count; i++)
2517 *storage++ = p++;
2518 ret += count;
2519 }
2520 }
2521
2522 *storage = NULL;
2523
2524 return ret;
2525 }
2526
2527 /* Read the relocations from one reloc section. This is mostly copied
2528 from elfcode.h, except for the changes to expand one external
2529 relocation to 3 internal ones. We must unfortunately set
2530 reloc_count to the number of external relocations, because a lot of
2531 generic code seems to depend on this. */
2532
2533 static bfd_boolean
2534 mips_elf64_slurp_one_reloc_table (bfd *abfd, asection *asect,
2535 Elf_Internal_Shdr *rel_hdr,
2536 bfd_size_type reloc_count,
2537 arelent *relents, asymbol **symbols,
2538 bfd_boolean dynamic)
2539 {
2540 void *allocated;
2541 bfd_byte *native_relocs;
2542 arelent *relent;
2543 bfd_vma i;
2544 int entsize;
2545 bfd_boolean rela_p;
2546
2547 allocated = bfd_malloc (rel_hdr->sh_size);
2548 if (allocated == NULL)
2549 return FALSE;
2550
2551 if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0
2552 || (bfd_bread (allocated, rel_hdr->sh_size, abfd)
2553 != rel_hdr->sh_size))
2554 goto error_return;
2555
2556 native_relocs = allocated;
2557
2558 entsize = rel_hdr->sh_entsize;
2559 BFD_ASSERT (entsize == sizeof (Elf64_Mips_External_Rel)
2560 || entsize == sizeof (Elf64_Mips_External_Rela));
2561
2562 if (entsize == sizeof (Elf64_Mips_External_Rel))
2563 rela_p = FALSE;
2564 else
2565 rela_p = TRUE;
2566
2567 for (i = 0, relent = relents;
2568 i < reloc_count;
2569 i++, native_relocs += entsize)
2570 {
2571 Elf64_Mips_Internal_Rela rela;
2572 bfd_boolean used_sym, used_ssym;
2573 int ir;
2574
2575 if (entsize == sizeof (Elf64_Mips_External_Rela))
2576 mips_elf64_swap_reloca_in (abfd,
2577 (Elf64_Mips_External_Rela *) native_relocs,
2578 &rela);
2579 else
2580 mips_elf64_swap_reloc_in (abfd,
2581 (Elf64_Mips_External_Rel *) native_relocs,
2582 &rela);
2583
2584 /* Each entry represents exactly three actual relocations. */
2585
2586 used_sym = FALSE;
2587 used_ssym = FALSE;
2588 for (ir = 0; ir < 3; ir++)
2589 {
2590 enum elf_mips_reloc_type type;
2591
2592 switch (ir)
2593 {
2594 default:
2595 abort ();
2596 case 0:
2597 type = (enum elf_mips_reloc_type) rela.r_type;
2598 break;
2599 case 1:
2600 type = (enum elf_mips_reloc_type) rela.r_type2;
2601 break;
2602 case 2:
2603 type = (enum elf_mips_reloc_type) rela.r_type3;
2604 break;
2605 }
2606
2607 /* Some types require symbols, whereas some do not. */
2608 switch (type)
2609 {
2610 case R_MIPS_NONE:
2611 case R_MIPS_LITERAL:
2612 case R_MIPS_INSERT_A:
2613 case R_MIPS_INSERT_B:
2614 case R_MIPS_DELETE:
2615 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2616 break;
2617
2618 default:
2619 if (! used_sym)
2620 {
2621 if (rela.r_sym == 0)
2622 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2623 else
2624 {
2625 asymbol **ps, *s;
2626
2627 ps = symbols + rela.r_sym - 1;
2628 s = *ps;
2629 if ((s->flags & BSF_SECTION_SYM) == 0)
2630 relent->sym_ptr_ptr = ps;
2631 else
2632 relent->sym_ptr_ptr = s->section->symbol_ptr_ptr;
2633 }
2634
2635 used_sym = TRUE;
2636 }
2637 else if (! used_ssym)
2638 {
2639 switch (rela.r_ssym)
2640 {
2641 case RSS_UNDEF:
2642 relent->sym_ptr_ptr =
2643 bfd_abs_section_ptr->symbol_ptr_ptr;
2644 break;
2645
2646 case RSS_GP:
2647 case RSS_GP0:
2648 case RSS_LOC:
2649 /* FIXME: I think these need to be handled using
2650 special howto structures. */
2651 BFD_ASSERT (0);
2652 break;
2653
2654 default:
2655 BFD_ASSERT (0);
2656 break;
2657 }
2658
2659 used_ssym = TRUE;
2660 }
2661 else
2662 relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr;
2663
2664 break;
2665 }
2666
2667 /* The address of an ELF reloc is section relative for an
2668 object file, and absolute for an executable file or
2669 shared library. The address of a BFD reloc is always
2670 section relative. */
2671 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic)
2672 relent->address = rela.r_offset;
2673 else
2674 relent->address = rela.r_offset - asect->vma;
2675
2676 relent->addend = rela.r_addend;
2677
2678 relent->howto = mips_elf64_rtype_to_howto (type, rela_p);
2679
2680 ++relent;
2681 }
2682 }
2683
2684 asect->reloc_count += (relent - relents) / 3;
2685
2686 if (allocated != NULL)
2687 free (allocated);
2688
2689 return TRUE;
2690
2691 error_return:
2692 if (allocated != NULL)
2693 free (allocated);
2694 return FALSE;
2695 }
2696
2697 /* Read the relocations. On Irix 6, there can be two reloc sections
2698 associated with a single data section. This is copied from
2699 elfcode.h as well, with changes as small as accounting for 3
2700 internal relocs per external reloc and resetting reloc_count to
2701 zero before processing the relocs of a section. */
2702
2703 static bfd_boolean
2704 mips_elf64_slurp_reloc_table (bfd *abfd, asection *asect,
2705 asymbol **symbols, bfd_boolean dynamic)
2706 {
2707 struct bfd_elf_section_data * const d = elf_section_data (asect);
2708 Elf_Internal_Shdr *rel_hdr;
2709 Elf_Internal_Shdr *rel_hdr2;
2710 bfd_size_type reloc_count;
2711 bfd_size_type reloc_count2;
2712 arelent *relents;
2713 bfd_size_type amt;
2714
2715 if (asect->relocation != NULL)
2716 return TRUE;
2717
2718 if (! dynamic)
2719 {
2720 if ((asect->flags & SEC_RELOC) == 0
2721 || asect->reloc_count == 0)
2722 return TRUE;
2723
2724 rel_hdr = &d->rel_hdr;
2725 reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
2726 rel_hdr2 = d->rel_hdr2;
2727 reloc_count2 = (rel_hdr2 ? NUM_SHDR_ENTRIES (rel_hdr2) : 0);
2728
2729 BFD_ASSERT (asect->reloc_count == reloc_count + reloc_count2);
2730 BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset
2731 || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset));
2732
2733 }
2734 else
2735 {
2736 /* Note that ASECT->RELOC_COUNT tends not to be accurate in this
2737 case because relocations against this section may use the
2738 dynamic symbol table, and in that case bfd_section_from_shdr
2739 in elf.c does not update the RELOC_COUNT. */
2740 if (asect->size == 0)
2741 return TRUE;
2742
2743 rel_hdr = &d->this_hdr;
2744 reloc_count = NUM_SHDR_ENTRIES (rel_hdr);
2745 rel_hdr2 = NULL;
2746 reloc_count2 = 0;
2747 }
2748
2749 /* Allocate space for 3 arelent structures for each Rel structure. */
2750 amt = (reloc_count + reloc_count2) * 3 * sizeof (arelent);
2751 relents = bfd_alloc (abfd, amt);
2752 if (relents == NULL)
2753 return FALSE;
2754
2755 /* The slurp_one_reloc_table routine increments reloc_count. */
2756 asect->reloc_count = 0;
2757
2758 if (! mips_elf64_slurp_one_reloc_table (abfd, asect,
2759 rel_hdr, reloc_count,
2760 relents,
2761 symbols, dynamic))
2762 return FALSE;
2763 if (d->rel_hdr2 != NULL)
2764 {
2765 if (! mips_elf64_slurp_one_reloc_table (abfd, asect,
2766 rel_hdr2, reloc_count2,
2767 relents + reloc_count * 3,
2768 symbols, dynamic))
2769 return FALSE;
2770 }
2771
2772 asect->relocation = relents;
2773 return TRUE;
2774 }
2775
2776 /* Write out the relocations. */
2777
2778 static void
2779 mips_elf64_write_relocs (bfd *abfd, asection *sec, void *data)
2780 {
2781 bfd_boolean *failedp = data;
2782 int count;
2783 Elf_Internal_Shdr *rel_hdr;
2784 unsigned int idx;
2785
2786 /* If we have already failed, don't do anything. */
2787 if (*failedp)
2788 return;
2789
2790 if ((sec->flags & SEC_RELOC) == 0)
2791 return;
2792
2793 /* The linker backend writes the relocs out itself, and sets the
2794 reloc_count field to zero to inhibit writing them here. Also,
2795 sometimes the SEC_RELOC flag gets set even when there aren't any
2796 relocs. */
2797 if (sec->reloc_count == 0)
2798 return;
2799
2800 /* We can combine up to three relocs that refer to the same address
2801 if the latter relocs have no associated symbol. */
2802 count = 0;
2803 for (idx = 0; idx < sec->reloc_count; idx++)
2804 {
2805 bfd_vma addr;
2806 unsigned int i;
2807
2808 ++count;
2809
2810 addr = sec->orelocation[idx]->address;
2811 for (i = 0; i < 2; i++)
2812 {
2813 arelent *r;
2814
2815 if (idx + 1 >= sec->reloc_count)
2816 break;
2817 r = sec->orelocation[idx + 1];
2818 if (r->address != addr
2819 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2820 || (*r->sym_ptr_ptr)->value != 0)
2821 break;
2822
2823 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2824
2825 ++idx;
2826 }
2827 }
2828
2829 rel_hdr = &elf_section_data (sec)->rel_hdr;
2830
2831 /* Do the actual relocation. */
2832
2833 if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rel))
2834 mips_elf64_write_rel (abfd, sec, rel_hdr, &count, data);
2835 else if (rel_hdr->sh_entsize == sizeof(Elf64_Mips_External_Rela))
2836 mips_elf64_write_rela (abfd, sec, rel_hdr, &count, data);
2837 else
2838 BFD_ASSERT (0);
2839 }
2840
2841 static void
2842 mips_elf64_write_rel (bfd *abfd, asection *sec,
2843 Elf_Internal_Shdr *rel_hdr,
2844 int *count, void *data)
2845 {
2846 bfd_boolean *failedp = data;
2847 Elf64_Mips_External_Rel *ext_rel;
2848 unsigned int idx;
2849 asymbol *last_sym = 0;
2850 int last_sym_idx = 0;
2851
2852 rel_hdr->sh_size = rel_hdr->sh_entsize * *count;
2853 rel_hdr->contents = bfd_alloc (abfd, rel_hdr->sh_size);
2854 if (rel_hdr->contents == NULL)
2855 {
2856 *failedp = TRUE;
2857 return;
2858 }
2859
2860 ext_rel = (Elf64_Mips_External_Rel *) rel_hdr->contents;
2861 for (idx = 0; idx < sec->reloc_count; idx++, ext_rel++)
2862 {
2863 arelent *ptr;
2864 Elf64_Mips_Internal_Rela int_rel;
2865 asymbol *sym;
2866 int n;
2867 unsigned int i;
2868
2869 ptr = sec->orelocation[idx];
2870
2871 /* The address of an ELF reloc is section relative for an object
2872 file, and absolute for an executable file or shared library.
2873 The address of a BFD reloc is always section relative. */
2874 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
2875 int_rel.r_offset = ptr->address;
2876 else
2877 int_rel.r_offset = ptr->address + sec->vma;
2878
2879 sym = *ptr->sym_ptr_ptr;
2880 if (sym == last_sym)
2881 n = last_sym_idx;
2882 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
2883 n = STN_UNDEF;
2884 else
2885 {
2886 last_sym = sym;
2887 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
2888 if (n < 0)
2889 {
2890 *failedp = TRUE;
2891 return;
2892 }
2893 last_sym_idx = n;
2894 }
2895
2896 int_rel.r_sym = n;
2897 int_rel.r_ssym = RSS_UNDEF;
2898
2899 if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
2900 && ! _bfd_elf_validate_reloc (abfd, ptr))
2901 {
2902 *failedp = TRUE;
2903 return;
2904 }
2905
2906 int_rel.r_type = ptr->howto->type;
2907 int_rel.r_type2 = (int) R_MIPS_NONE;
2908 int_rel.r_type3 = (int) R_MIPS_NONE;
2909
2910 for (i = 0; i < 2; i++)
2911 {
2912 arelent *r;
2913
2914 if (idx + 1 >= sec->reloc_count)
2915 break;
2916 r = sec->orelocation[idx + 1];
2917 if (r->address != ptr->address
2918 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
2919 || (*r->sym_ptr_ptr)->value != 0)
2920 break;
2921
2922 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
2923
2924 if (i == 0)
2925 int_rel.r_type2 = r->howto->type;
2926 else
2927 int_rel.r_type3 = r->howto->type;
2928
2929 ++idx;
2930 }
2931
2932 mips_elf64_swap_reloc_out (abfd, &int_rel, ext_rel);
2933 }
2934
2935 BFD_ASSERT (ext_rel - (Elf64_Mips_External_Rel *) rel_hdr->contents
2936 == *count);
2937 }
2938
2939 static void
2940 mips_elf64_write_rela (bfd *abfd, asection *sec,
2941 Elf_Internal_Shdr *rela_hdr,
2942 int *count, void *data)
2943 {
2944 bfd_boolean *failedp = data;
2945 Elf64_Mips_External_Rela *ext_rela;
2946 unsigned int idx;
2947 asymbol *last_sym = 0;
2948 int last_sym_idx = 0;
2949
2950 rela_hdr->sh_size = rela_hdr->sh_entsize * *count;
2951 rela_hdr->contents = bfd_alloc (abfd, rela_hdr->sh_size);
2952 if (rela_hdr->contents == NULL)
2953 {
2954 *failedp = TRUE;
2955 return;
2956 }
2957
2958 ext_rela = (Elf64_Mips_External_Rela *) rela_hdr->contents;
2959 for (idx = 0; idx < sec->reloc_count; idx++, ext_rela++)
2960 {
2961 arelent *ptr;
2962 Elf64_Mips_Internal_Rela int_rela;
2963 asymbol *sym;
2964 int n;
2965 unsigned int i;
2966
2967 ptr = sec->orelocation[idx];
2968
2969 /* The address of an ELF reloc is section relative for an object
2970 file, and absolute for an executable file or shared library.
2971 The address of a BFD reloc is always section relative. */
2972 if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0)
2973 int_rela.r_offset = ptr->address;
2974 else
2975 int_rela.r_offset = ptr->address + sec->vma;
2976
2977 sym = *ptr->sym_ptr_ptr;
2978 if (sym == last_sym)
2979 n = last_sym_idx;
2980 else if (bfd_is_abs_section (sym->section) && sym->value == 0)
2981 n = STN_UNDEF;
2982 else
2983 {
2984 last_sym = sym;
2985 n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym);
2986 if (n < 0)
2987 {
2988 *failedp = TRUE;
2989 return;
2990 }
2991 last_sym_idx = n;
2992 }
2993
2994 int_rela.r_sym = n;
2995 int_rela.r_addend = ptr->addend;
2996 int_rela.r_ssym = RSS_UNDEF;
2997
2998 if ((*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec
2999 && ! _bfd_elf_validate_reloc (abfd, ptr))
3000 {
3001 *failedp = TRUE;
3002 return;
3003 }
3004
3005 int_rela.r_type = ptr->howto->type;
3006 int_rela.r_type2 = (int) R_MIPS_NONE;
3007 int_rela.r_type3 = (int) R_MIPS_NONE;
3008
3009 for (i = 0; i < 2; i++)
3010 {
3011 arelent *r;
3012
3013 if (idx + 1 >= sec->reloc_count)
3014 break;
3015 r = sec->orelocation[idx + 1];
3016 if (r->address != ptr->address
3017 || ! bfd_is_abs_section ((*r->sym_ptr_ptr)->section)
3018 || (*r->sym_ptr_ptr)->value != 0)
3019 break;
3020
3021 /* We can merge the reloc at IDX + 1 with the reloc at IDX. */
3022
3023 if (i == 0)
3024 int_rela.r_type2 = r->howto->type;
3025 else
3026 int_rela.r_type3 = r->howto->type;
3027
3028 ++idx;
3029 }
3030
3031 mips_elf64_swap_reloca_out (abfd, &int_rela, ext_rela);
3032 }
3033
3034 BFD_ASSERT (ext_rela - (Elf64_Mips_External_Rela *) rela_hdr->contents
3035 == *count);
3036 }
3037 \f
3038 /* Set the right machine number for a MIPS ELF file. */
3039
3040 static bfd_boolean
3041 mips_elf64_object_p (bfd *abfd)
3042 {
3043 unsigned long mach;
3044
3045 /* Irix 6 is broken. Object file symbol tables are not always
3046 sorted correctly such that local symbols precede global symbols,
3047 and the sh_info field in the symbol table is not always right. */
3048 if (elf64_mips_irix_compat (abfd) != ict_none)
3049 elf_bad_symtab (abfd) = TRUE;
3050
3051 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
3052 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
3053 return TRUE;
3054 }
3055
3056 /* Depending on the target vector we generate some version of Irix
3057 executables or "normal" MIPS ELF ABI executables. */
3058 static irix_compat_t
3059 elf64_mips_irix_compat (bfd *abfd)
3060 {
3061 if ((abfd->xvec == &bfd_elf64_bigmips_vec)
3062 || (abfd->xvec == &bfd_elf64_littlemips_vec))
3063 return ict_irix6;
3064 else
3065 return ict_none;
3066 }
3067 \f
3068 /* Support for core dump NOTE sections. */
3069 static bfd_boolean
3070 elf64_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
3071 {
3072 int offset;
3073 unsigned int size;
3074
3075 switch (note->descsz)
3076 {
3077 default:
3078 return FALSE;
3079
3080 case 480: /* Linux/MIPS - N64 kernel */
3081 /* pr_cursig */
3082 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
3083
3084 /* pr_pid */
3085 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
3086
3087 /* pr_reg */
3088 offset = 112;
3089 size = 360;
3090
3091 break;
3092 }
3093
3094 /* Make a ".reg/999" section. */
3095 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
3096 size, note->descpos + offset);
3097 }
3098
3099 static bfd_boolean
3100 elf64_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
3101 {
3102 switch (note->descsz)
3103 {
3104 default:
3105 return FALSE;
3106
3107 case 136: /* Linux/MIPS - N64 kernel elf_prpsinfo */
3108 elf_tdata (abfd)->core_program
3109 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
3110 elf_tdata (abfd)->core_command
3111 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
3112 }
3113
3114 /* Note that for some reason, a spurious space is tacked
3115 onto the end of the args in some (at least one anyway)
3116 implementations, so strip it off if it exists. */
3117
3118 {
3119 char *command = elf_tdata (abfd)->core_command;
3120 int n = strlen (command);
3121
3122 if (0 < n && command[n - 1] == ' ')
3123 command[n - 1] = '\0';
3124 }
3125
3126 return TRUE;
3127 }
3128 \f
3129 /* ECOFF swapping routines. These are used when dealing with the
3130 .mdebug section, which is in the ECOFF debugging format. */
3131 static const struct ecoff_debug_swap mips_elf64_ecoff_debug_swap =
3132 {
3133 /* Symbol table magic number. */
3134 magicSym2,
3135 /* Alignment of debugging information. E.g., 4. */
3136 8,
3137 /* Sizes of external symbolic information. */
3138 sizeof (struct hdr_ext),
3139 sizeof (struct dnr_ext),
3140 sizeof (struct pdr_ext),
3141 sizeof (struct sym_ext),
3142 sizeof (struct opt_ext),
3143 sizeof (struct fdr_ext),
3144 sizeof (struct rfd_ext),
3145 sizeof (struct ext_ext),
3146 /* Functions to swap in external symbolic data. */
3147 ecoff_swap_hdr_in,
3148 ecoff_swap_dnr_in,
3149 ecoff_swap_pdr_in,
3150 ecoff_swap_sym_in,
3151 ecoff_swap_opt_in,
3152 ecoff_swap_fdr_in,
3153 ecoff_swap_rfd_in,
3154 ecoff_swap_ext_in,
3155 _bfd_ecoff_swap_tir_in,
3156 _bfd_ecoff_swap_rndx_in,
3157 /* Functions to swap out external symbolic data. */
3158 ecoff_swap_hdr_out,
3159 ecoff_swap_dnr_out,
3160 ecoff_swap_pdr_out,
3161 ecoff_swap_sym_out,
3162 ecoff_swap_opt_out,
3163 ecoff_swap_fdr_out,
3164 ecoff_swap_rfd_out,
3165 ecoff_swap_ext_out,
3166 _bfd_ecoff_swap_tir_out,
3167 _bfd_ecoff_swap_rndx_out,
3168 /* Function to read in symbolic data. */
3169 _bfd_mips_elf_read_ecoff_info
3170 };
3171 \f
3172 /* Relocations in the 64 bit MIPS ELF ABI are more complex than in
3173 standard ELF. This structure is used to redirect the relocation
3174 handling routines. */
3175
3176 const struct elf_size_info mips_elf64_size_info =
3177 {
3178 sizeof (Elf64_External_Ehdr),
3179 sizeof (Elf64_External_Phdr),
3180 sizeof (Elf64_External_Shdr),
3181 sizeof (Elf64_Mips_External_Rel),
3182 sizeof (Elf64_Mips_External_Rela),
3183 sizeof (Elf64_External_Sym),
3184 sizeof (Elf64_External_Dyn),
3185 sizeof (Elf_External_Note),
3186 4, /* hash-table entry size */
3187 3, /* internal relocations per external relocations */
3188 64, /* arch_size */
3189 3, /* log_file_align */
3190 ELFCLASS64,
3191 EV_CURRENT,
3192 bfd_elf64_write_out_phdrs,
3193 bfd_elf64_write_shdrs_and_ehdr,
3194 bfd_elf64_checksum_contents,
3195 mips_elf64_write_relocs,
3196 bfd_elf64_swap_symbol_in,
3197 bfd_elf64_swap_symbol_out,
3198 mips_elf64_slurp_reloc_table,
3199 bfd_elf64_slurp_symbol_table,
3200 bfd_elf64_swap_dyn_in,
3201 bfd_elf64_swap_dyn_out,
3202 mips_elf64_be_swap_reloc_in,
3203 mips_elf64_be_swap_reloc_out,
3204 mips_elf64_be_swap_reloca_in,
3205 mips_elf64_be_swap_reloca_out
3206 };
3207
3208 #define ELF_ARCH bfd_arch_mips
3209 #define ELF_MACHINE_CODE EM_MIPS
3210
3211 #define elf_backend_collect TRUE
3212 #define elf_backend_type_change_ok TRUE
3213 #define elf_backend_can_gc_sections TRUE
3214 #define elf_info_to_howto mips_elf64_info_to_howto_rela
3215 #define elf_info_to_howto_rel mips_elf64_info_to_howto_rel
3216 #define elf_backend_object_p mips_elf64_object_p
3217 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
3218 #define elf_backend_section_processing _bfd_mips_elf_section_processing
3219 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
3220 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
3221 #define elf_backend_section_from_bfd_section \
3222 _bfd_mips_elf_section_from_bfd_section
3223 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
3224 #define elf_backend_link_output_symbol_hook \
3225 _bfd_mips_elf_link_output_symbol_hook
3226 #define elf_backend_create_dynamic_sections \
3227 _bfd_mips_elf_create_dynamic_sections
3228 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
3229 #define elf_backend_merge_symbol_attribute \
3230 _bfd_mips_elf_merge_symbol_attribute
3231 #define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
3232 #define elf_backend_adjust_dynamic_symbol \
3233 _bfd_mips_elf_adjust_dynamic_symbol
3234 #define elf_backend_always_size_sections \
3235 _bfd_mips_elf_always_size_sections
3236 #define elf_backend_size_dynamic_sections \
3237 _bfd_mips_elf_size_dynamic_sections
3238 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
3239 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
3240 #define elf_backend_finish_dynamic_symbol \
3241 _bfd_mips_elf_finish_dynamic_symbol
3242 #define elf_backend_finish_dynamic_sections \
3243 _bfd_mips_elf_finish_dynamic_sections
3244 #define elf_backend_final_write_processing \
3245 _bfd_mips_elf_final_write_processing
3246 #define elf_backend_additional_program_headers \
3247 _bfd_mips_elf_additional_program_headers
3248 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
3249 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
3250 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
3251 #define elf_backend_copy_indirect_symbol \
3252 _bfd_mips_elf_copy_indirect_symbol
3253 #define elf_backend_ignore_discarded_relocs \
3254 _bfd_mips_elf_ignore_discarded_relocs
3255 #define elf_backend_mips_irix_compat elf64_mips_irix_compat
3256 #define elf_backend_mips_rtype_to_howto mips_elf64_rtype_to_howto
3257 #define elf_backend_ecoff_debug_swap &mips_elf64_ecoff_debug_swap
3258 #define elf_backend_size_info mips_elf64_size_info
3259
3260 #define elf_backend_grok_prstatus elf64_mips_grok_prstatus
3261 #define elf_backend_grok_psinfo elf64_mips_grok_psinfo
3262
3263 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
3264
3265 /* MIPS ELF64 can use a mixture of REL and RELA, but some Relocations
3266 work better/work only in RELA, so we default to this. */
3267 #define elf_backend_may_use_rel_p 1
3268 #define elf_backend_may_use_rela_p 1
3269 #define elf_backend_default_use_rela_p 1
3270 #define elf_backend_rela_plts_and_copies_p 0
3271 #define elf_backend_plt_readonly 1
3272 #define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
3273
3274 #define elf_backend_sign_extend_vma TRUE
3275
3276 #define elf_backend_write_section _bfd_mips_elf_write_section
3277
3278 /* We don't set bfd_elf64_bfd_is_local_label_name because the 32-bit
3279 MIPS-specific function only applies to IRIX5, which had no 64-bit
3280 ABI. */
3281 #define bfd_elf64_find_nearest_line _bfd_mips_elf_find_nearest_line
3282 #define bfd_elf64_find_inliner_info _bfd_mips_elf_find_inliner_info
3283 #define bfd_elf64_new_section_hook _bfd_mips_elf_new_section_hook
3284 #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents
3285 #define bfd_elf64_bfd_get_relocated_section_contents \
3286 _bfd_elf_mips_get_relocated_section_contents
3287 #define bfd_elf64_mkobject _bfd_mips_elf_mkobject
3288 #define bfd_elf64_bfd_link_hash_table_create \
3289 _bfd_mips_elf_link_hash_table_create
3290 #define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link
3291 #define bfd_elf64_bfd_merge_private_bfd_data \
3292 _bfd_mips_elf_merge_private_bfd_data
3293 #define bfd_elf64_bfd_set_private_flags _bfd_mips_elf_set_private_flags
3294 #define bfd_elf64_bfd_print_private_bfd_data \
3295 _bfd_mips_elf_print_private_bfd_data
3296
3297 #define bfd_elf64_get_reloc_upper_bound mips_elf64_get_reloc_upper_bound
3298 #define bfd_elf64_canonicalize_reloc mips_elf64_canonicalize_reloc
3299 #define bfd_elf64_get_dynamic_reloc_upper_bound mips_elf64_get_dynamic_reloc_upper_bound
3300 #define bfd_elf64_canonicalize_dynamic_reloc mips_elf64_canonicalize_dynamic_reloc
3301 #define bfd_elf64_bfd_relax_section _bfd_mips_relax_section
3302
3303 /* MIPS ELF64 archive functions. */
3304 #define bfd_elf64_archive_functions
3305 extern bfd_boolean bfd_elf64_archive_slurp_armap
3306 (bfd *);
3307 extern bfd_boolean bfd_elf64_archive_write_armap
3308 (bfd *, unsigned int, struct orl *, unsigned int, int);
3309 #define bfd_elf64_archive_slurp_extended_name_table \
3310 _bfd_archive_coff_slurp_extended_name_table
3311 #define bfd_elf64_archive_construct_extended_name_table \
3312 _bfd_archive_coff_construct_extended_name_table
3313 #define bfd_elf64_archive_truncate_arname \
3314 _bfd_archive_coff_truncate_arname
3315 #define bfd_elf64_archive_read_ar_hdr _bfd_archive_coff_read_ar_hdr
3316 #define bfd_elf64_archive_openr_next_archived_file \
3317 _bfd_archive_coff_openr_next_archived_file
3318 #define bfd_elf64_archive_get_elt_at_index \
3319 _bfd_archive_coff_get_elt_at_index
3320 #define bfd_elf64_archive_generic_stat_arch_elt \
3321 _bfd_archive_coff_generic_stat_arch_elt
3322 #define bfd_elf64_archive_update_armap_timestamp \
3323 _bfd_archive_coff_update_armap_timestamp
3324
3325 /* The SGI style (n)64 NewABI. */
3326 #define TARGET_LITTLE_SYM bfd_elf64_littlemips_vec
3327 #define TARGET_LITTLE_NAME "elf64-littlemips"
3328 #define TARGET_BIG_SYM bfd_elf64_bigmips_vec
3329 #define TARGET_BIG_NAME "elf64-bigmips"
3330
3331 #define ELF_MAXPAGESIZE 0x10000
3332 #define ELF_COMMONPAGESIZE 0x1000
3333
3334 #include "elf64-target.h"
3335
3336 /* The SYSV-style 'traditional' (n)64 NewABI. */
3337 #undef TARGET_LITTLE_SYM
3338 #undef TARGET_LITTLE_NAME
3339 #undef TARGET_BIG_SYM
3340 #undef TARGET_BIG_NAME
3341
3342 #undef ELF_MAXPAGESIZE
3343 #undef ELF_COMMONPAGESIZE
3344
3345 #define TARGET_LITTLE_SYM bfd_elf64_tradlittlemips_vec
3346 #define TARGET_LITTLE_NAME "elf64-tradlittlemips"
3347 #define TARGET_BIG_SYM bfd_elf64_tradbigmips_vec
3348 #define TARGET_BIG_NAME "elf64-tradbigmips"
3349
3350 #define ELF_MAXPAGESIZE 0x10000
3351 #define ELF_COMMONPAGESIZE 0x1000
3352 #define elf64_bed elf64_tradbed
3353
3354 /* Include the target file again for this target. */
3355 #include "elf64-target.h"
GDB Binutils - Deliverables
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