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Drop non-prototype C function header variants: 'sepdebug' test case
[binutils-gdb.git] / bfd / elf32-mips.c
blob4cfef7a20e01510a83c8ac39239d7b79cf35d6f4
1 /* MIPS-specific support for 32-bit ELF
2 Copyright (C) 1993-2014 Free Software Foundation, Inc.
3
4 Most of the information added by Ian Lance Taylor, Cygnus Support,
5 <ian@cygnus.com>.
6 N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
7 <mark@codesourcery.com>
8 Traditional MIPS targets support added by Koundinya.K, Dansk Data
9 Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
10
11 This file is part of BFD, the Binary File Descriptor library.
12
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 3 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
26 MA 02110-1301, USA. */
27
28
29 /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly
30 different MIPS ELF from other targets. This matters when linking.
31 This file supports both, switching at runtime. */
32
33 #include "sysdep.h"
34 #include "bfd.h"
35 #include "libbfd.h"
36 #include "bfdlink.h"
37 #include "genlink.h"
38 #include "elf-bfd.h"
39 #include "elfxx-mips.h"
40 #include "elf/mips.h"
41 #include "elf-vxworks.h"
42
43 /* Get the ECOFF swapping routines. */
44 #include "coff/sym.h"
45 #include "coff/symconst.h"
46 #include "coff/internal.h"
47 #include "coff/ecoff.h"
48 #include "coff/mips.h"
49 #define ECOFF_SIGNED_32
50 #include "ecoffswap.h"
51
52 static bfd_reloc_status_type gprel32_with_gp
53 (bfd *, asymbol *, arelent *, asection *, bfd_boolean, void *, bfd_vma);
54 static bfd_reloc_status_type mips_elf_gprel32_reloc
55 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
56 static bfd_reloc_status_type mips32_64bit_reloc
57 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
58 static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
59 (bfd *, bfd_reloc_code_real_type);
60 static reloc_howto_type *mips_elf32_rtype_to_howto
61 (unsigned int, bfd_boolean);
62 static void mips_info_to_howto_rel
63 (bfd *, arelent *, Elf_Internal_Rela *);
64 static void mips_info_to_howto_rela
65 (bfd *, arelent *, Elf_Internal_Rela *);
66 static bfd_boolean mips_elf_sym_is_global
67 (bfd *, asymbol *);
68 static bfd_boolean mips_elf32_object_p
69 (bfd *);
70 static bfd_boolean mips_elf_is_local_label_name
71 (bfd *, const char *);
72 static bfd_reloc_status_type mips16_gprel_reloc
73 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
74 static bfd_reloc_status_type mips_elf_final_gp
75 (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *);
76 static bfd_boolean mips_elf_assign_gp
77 (bfd *, bfd_vma *);
78 static bfd_boolean elf32_mips_grok_prstatus
79 (bfd *, Elf_Internal_Note *);
80 static bfd_boolean elf32_mips_grok_psinfo
81 (bfd *, Elf_Internal_Note *);
82 static irix_compat_t elf32_mips_irix_compat
83 (bfd *);
84
85 extern const bfd_target mips_elf32_be_vec;
86 extern const bfd_target mips_elf32_le_vec;
87
88 /* Nonzero if ABFD is using the N32 ABI. */
89 #define ABI_N32_P(abfd) \
90 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
91
92 /* Whether we are trying to be compatible with IRIX at all. */
93 #define SGI_COMPAT(abfd) \
94 (elf32_mips_irix_compat (abfd) != ict_none)
95
96 /* The number of local .got entries we reserve. */
97 #define MIPS_RESERVED_GOTNO (2)
98
99 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
100 from smaller values. Start with zero, widen, *then* decrement. */
101 #define MINUS_ONE (((bfd_vma)0) - 1)
102
103 /* The relocation table used for SHT_REL sections. */
104
105 static reloc_howto_type elf_mips_howto_table_rel[] =
106 {
107 /* No relocation. */
108 HOWTO (R_MIPS_NONE, /* type */
109 0, /* rightshift */
110 0, /* size (0 = byte, 1 = short, 2 = long) */
111 0, /* bitsize */
112 FALSE, /* pc_relative */
113 0, /* bitpos */
114 complain_overflow_dont, /* complain_on_overflow */
115 _bfd_mips_elf_generic_reloc, /* special_function */
116 "R_MIPS_NONE", /* name */
117 FALSE, /* partial_inplace */
118 0, /* src_mask */
119 0, /* dst_mask */
120 FALSE), /* pcrel_offset */
121
122 /* 16 bit relocation. */
123 HOWTO (R_MIPS_16, /* type */
124 0, /* rightshift */
125 2, /* size (0 = byte, 1 = short, 2 = long) */
126 16, /* bitsize */
127 FALSE, /* pc_relative */
128 0, /* bitpos */
129 complain_overflow_signed, /* complain_on_overflow */
130 _bfd_mips_elf_generic_reloc, /* special_function */
131 "R_MIPS_16", /* name */
132 TRUE, /* partial_inplace */
133 0x0000ffff, /* src_mask */
134 0x0000ffff, /* dst_mask */
135 FALSE), /* pcrel_offset */
136
137 /* 32 bit relocation. */
138 HOWTO (R_MIPS_32, /* type */
139 0, /* rightshift */
140 2, /* size (0 = byte, 1 = short, 2 = long) */
141 32, /* bitsize */
142 FALSE, /* pc_relative */
143 0, /* bitpos */
144 complain_overflow_dont, /* complain_on_overflow */
145 _bfd_mips_elf_generic_reloc, /* special_function */
146 "R_MIPS_32", /* name */
147 TRUE, /* partial_inplace */
148 0xffffffff, /* src_mask */
149 0xffffffff, /* dst_mask */
150 FALSE), /* pcrel_offset */
151
152 /* 32 bit symbol relative relocation. */
153 HOWTO (R_MIPS_REL32, /* type */
154 0, /* rightshift */
155 2, /* size (0 = byte, 1 = short, 2 = long) */
156 32, /* bitsize */
157 FALSE, /* pc_relative */
158 0, /* bitpos */
159 complain_overflow_dont, /* complain_on_overflow */
160 _bfd_mips_elf_generic_reloc, /* special_function */
161 "R_MIPS_REL32", /* name */
162 TRUE, /* partial_inplace */
163 0xffffffff, /* src_mask */
164 0xffffffff, /* dst_mask */
165 FALSE), /* pcrel_offset */
166
167 /* 26 bit jump address. */
168 HOWTO (R_MIPS_26, /* type */
169 2, /* rightshift */
170 2, /* size (0 = byte, 1 = short, 2 = long) */
171 26, /* bitsize */
172 FALSE, /* pc_relative */
173 0, /* bitpos */
174 complain_overflow_dont, /* complain_on_overflow */
175 /* This needs complex overflow
176 detection, because the upper four
177 bits must match the PC + 4. */
178 _bfd_mips_elf_generic_reloc, /* special_function */
179 "R_MIPS_26", /* name */
180 TRUE, /* partial_inplace */
181 0x03ffffff, /* src_mask */
182 0x03ffffff, /* dst_mask */
183 FALSE), /* pcrel_offset */
184
185 /* High 16 bits of symbol value. */
186 HOWTO (R_MIPS_HI16, /* type */
187 16, /* rightshift */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
189 16, /* bitsize */
190 FALSE, /* pc_relative */
191 0, /* bitpos */
192 complain_overflow_dont, /* complain_on_overflow */
193 _bfd_mips_elf_hi16_reloc, /* special_function */
194 "R_MIPS_HI16", /* name */
195 TRUE, /* partial_inplace */
196 0x0000ffff, /* src_mask */
197 0x0000ffff, /* dst_mask */
198 FALSE), /* pcrel_offset */
199
200 /* Low 16 bits of symbol value. */
201 HOWTO (R_MIPS_LO16, /* type */
202 0, /* rightshift */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
204 16, /* bitsize */
205 FALSE, /* pc_relative */
206 0, /* bitpos */
207 complain_overflow_dont, /* complain_on_overflow */
208 _bfd_mips_elf_lo16_reloc, /* special_function */
209 "R_MIPS_LO16", /* name */
210 TRUE, /* partial_inplace */
211 0x0000ffff, /* src_mask */
212 0x0000ffff, /* dst_mask */
213 FALSE), /* pcrel_offset */
214
215 /* GP relative reference. */
216 HOWTO (R_MIPS_GPREL16, /* type */
217 0, /* rightshift */
218 2, /* size (0 = byte, 1 = short, 2 = long) */
219 16, /* bitsize */
220 FALSE, /* pc_relative */
221 0, /* bitpos */
222 complain_overflow_signed, /* complain_on_overflow */
223 _bfd_mips_elf32_gprel16_reloc, /* special_function */
224 "R_MIPS_GPREL16", /* name */
225 TRUE, /* partial_inplace */
226 0x0000ffff, /* src_mask */
227 0x0000ffff, /* dst_mask */
228 FALSE), /* pcrel_offset */
229
230 /* Reference to literal section. */
231 HOWTO (R_MIPS_LITERAL, /* type */
232 0, /* rightshift */
233 2, /* size (0 = byte, 1 = short, 2 = long) */
234 16, /* bitsize */
235 FALSE, /* pc_relative */
236 0, /* bitpos */
237 complain_overflow_signed, /* complain_on_overflow */
238 _bfd_mips_elf32_gprel16_reloc, /* special_function */
239 "R_MIPS_LITERAL", /* name */
240 TRUE, /* partial_inplace */
241 0x0000ffff, /* src_mask */
242 0x0000ffff, /* dst_mask */
243 FALSE), /* pcrel_offset */
244
245 /* Reference to global offset table. */
246 HOWTO (R_MIPS_GOT16, /* type */
247 0, /* rightshift */
248 2, /* size (0 = byte, 1 = short, 2 = long) */
249 16, /* bitsize */
250 FALSE, /* pc_relative */
251 0, /* bitpos */
252 complain_overflow_signed, /* complain_on_overflow */
253 _bfd_mips_elf_got16_reloc, /* special_function */
254 "R_MIPS_GOT16", /* name */
255 TRUE, /* partial_inplace */
256 0x0000ffff, /* src_mask */
257 0x0000ffff, /* dst_mask */
258 FALSE), /* pcrel_offset */
259
260 /* 16 bit PC relative reference. Note that the ABI document has a typo
261 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
262 We do the right thing here. */
263 HOWTO (R_MIPS_PC16, /* type */
264 2, /* rightshift */
265 2, /* size (0 = byte, 1 = short, 2 = long) */
266 16, /* bitsize */
267 TRUE, /* pc_relative */
268 0, /* bitpos */
269 complain_overflow_signed, /* complain_on_overflow */
270 _bfd_mips_elf_generic_reloc, /* special_function */
271 "R_MIPS_PC16", /* name */
272 TRUE, /* partial_inplace */
273 0x0000ffff, /* src_mask */
274 0x0000ffff, /* dst_mask */
275 TRUE), /* pcrel_offset */
276
277 /* 16 bit call through global offset table. */
278 HOWTO (R_MIPS_CALL16, /* type */
279 0, /* rightshift */
280 2, /* size (0 = byte, 1 = short, 2 = long) */
281 16, /* bitsize */
282 FALSE, /* pc_relative */
283 0, /* bitpos */
284 complain_overflow_signed, /* complain_on_overflow */
285 _bfd_mips_elf_generic_reloc, /* special_function */
286 "R_MIPS_CALL16", /* name */
287 TRUE, /* partial_inplace */
288 0x0000ffff, /* src_mask */
289 0x0000ffff, /* dst_mask */
290 FALSE), /* pcrel_offset */
291
292 /* 32 bit GP relative reference. */
293 HOWTO (R_MIPS_GPREL32, /* type */
294 0, /* rightshift */
295 2, /* size (0 = byte, 1 = short, 2 = long) */
296 32, /* bitsize */
297 FALSE, /* pc_relative */
298 0, /* bitpos */
299 complain_overflow_dont, /* complain_on_overflow */
300 mips_elf_gprel32_reloc, /* special_function */
301 "R_MIPS_GPREL32", /* name */
302 TRUE, /* partial_inplace */
303 0xffffffff, /* src_mask */
304 0xffffffff, /* dst_mask */
305 FALSE), /* pcrel_offset */
306
307 /* The remaining relocs are defined on Irix 5, although they are
308 not defined by the ABI. */
309 EMPTY_HOWTO (13),
310 EMPTY_HOWTO (14),
311 EMPTY_HOWTO (15),
312
313 /* A 5 bit shift field. */
314 HOWTO (R_MIPS_SHIFT5, /* type */
315 0, /* rightshift */
316 2, /* size (0 = byte, 1 = short, 2 = long) */
317 5, /* bitsize */
318 FALSE, /* pc_relative */
319 6, /* bitpos */
320 complain_overflow_bitfield, /* complain_on_overflow */
321 _bfd_mips_elf_generic_reloc, /* special_function */
322 "R_MIPS_SHIFT5", /* name */
323 TRUE, /* partial_inplace */
324 0x000007c0, /* src_mask */
325 0x000007c0, /* dst_mask */
326 FALSE), /* pcrel_offset */
327
328 /* A 6 bit shift field. */
329 /* FIXME: This is not handled correctly; a special function is
330 needed to put the most significant bit in the right place. */
331 HOWTO (R_MIPS_SHIFT6, /* type */
332 0, /* rightshift */
333 2, /* size (0 = byte, 1 = short, 2 = long) */
334 6, /* bitsize */
335 FALSE, /* pc_relative */
336 6, /* bitpos */
337 complain_overflow_bitfield, /* complain_on_overflow */
338 _bfd_mips_elf_generic_reloc, /* special_function */
339 "R_MIPS_SHIFT6", /* name */
340 TRUE, /* partial_inplace */
341 0x000007c4, /* src_mask */
342 0x000007c4, /* dst_mask */
343 FALSE), /* pcrel_offset */
344
345 /* A 64 bit relocation. */
346 HOWTO (R_MIPS_64, /* type */
347 0, /* rightshift */
348 4, /* size (0 = byte, 1 = short, 2 = long) */
349 64, /* bitsize */
350 FALSE, /* pc_relative */
351 0, /* bitpos */
352 complain_overflow_dont, /* complain_on_overflow */
353 mips32_64bit_reloc, /* special_function */
354 "R_MIPS_64", /* name */
355 TRUE, /* partial_inplace */
356 MINUS_ONE, /* src_mask */
357 MINUS_ONE, /* dst_mask */
358 FALSE), /* pcrel_offset */
359
360 /* Displacement in the global offset table. */
361 HOWTO (R_MIPS_GOT_DISP, /* type */
362 0, /* rightshift */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
364 16, /* bitsize */
365 FALSE, /* pc_relative */
366 0, /* bitpos */
367 complain_overflow_signed, /* complain_on_overflow */
368 _bfd_mips_elf_generic_reloc, /* special_function */
369 "R_MIPS_GOT_DISP", /* name */
370 TRUE, /* partial_inplace */
371 0x0000ffff, /* src_mask */
372 0x0000ffff, /* dst_mask */
373 FALSE), /* pcrel_offset */
374
375 /* Displacement to page pointer in the global offset table. */
376 HOWTO (R_MIPS_GOT_PAGE, /* type */
377 0, /* rightshift */
378 2, /* size (0 = byte, 1 = short, 2 = long) */
379 16, /* bitsize */
380 FALSE, /* pc_relative */
381 0, /* bitpos */
382 complain_overflow_signed, /* complain_on_overflow */
383 _bfd_mips_elf_generic_reloc, /* special_function */
384 "R_MIPS_GOT_PAGE", /* name */
385 TRUE, /* partial_inplace */
386 0x0000ffff, /* src_mask */
387 0x0000ffff, /* dst_mask */
388 FALSE), /* pcrel_offset */
389
390 /* Offset from page pointer in the global offset table. */
391 HOWTO (R_MIPS_GOT_OFST, /* type */
392 0, /* rightshift */
393 2, /* size (0 = byte, 1 = short, 2 = long) */
394 16, /* bitsize */
395 FALSE, /* pc_relative */
396 0, /* bitpos */
397 complain_overflow_signed, /* complain_on_overflow */
398 _bfd_mips_elf_generic_reloc, /* special_function */
399 "R_MIPS_GOT_OFST", /* name */
400 TRUE, /* partial_inplace */
401 0x0000ffff, /* src_mask */
402 0x0000ffff, /* dst_mask */
403 FALSE), /* pcrel_offset */
404
405 /* High 16 bits of displacement in global offset table. */
406 HOWTO (R_MIPS_GOT_HI16, /* type */
407 0, /* rightshift */
408 2, /* size (0 = byte, 1 = short, 2 = long) */
409 16, /* bitsize */
410 FALSE, /* pc_relative */
411 0, /* bitpos */
412 complain_overflow_dont, /* complain_on_overflow */
413 _bfd_mips_elf_generic_reloc, /* special_function */
414 "R_MIPS_GOT_HI16", /* name */
415 TRUE, /* partial_inplace */
416 0x0000ffff, /* src_mask */
417 0x0000ffff, /* dst_mask */
418 FALSE), /* pcrel_offset */
419
420 /* Low 16 bits of displacement in global offset table. */
421 HOWTO (R_MIPS_GOT_LO16, /* type */
422 0, /* rightshift */
423 2, /* size (0 = byte, 1 = short, 2 = long) */
424 16, /* bitsize */
425 FALSE, /* pc_relative */
426 0, /* bitpos */
427 complain_overflow_dont, /* complain_on_overflow */
428 _bfd_mips_elf_generic_reloc, /* special_function */
429 "R_MIPS_GOT_LO16", /* name */
430 TRUE, /* partial_inplace */
431 0x0000ffff, /* src_mask */
432 0x0000ffff, /* dst_mask */
433 FALSE), /* pcrel_offset */
434
435 /* 64 bit subtraction. Used in the N32 ABI. */
436 HOWTO (R_MIPS_SUB, /* type */
437 0, /* rightshift */
438 4, /* size (0 = byte, 1 = short, 2 = long) */
439 64, /* bitsize */
440 FALSE, /* pc_relative */
441 0, /* bitpos */
442 complain_overflow_dont, /* complain_on_overflow */
443 _bfd_mips_elf_generic_reloc, /* special_function */
444 "R_MIPS_SUB", /* name */
445 TRUE, /* partial_inplace */
446 MINUS_ONE, /* src_mask */
447 MINUS_ONE, /* dst_mask */
448 FALSE), /* pcrel_offset */
449
450 /* Used to cause the linker to insert and delete instructions? */
451 EMPTY_HOWTO (R_MIPS_INSERT_A),
452 EMPTY_HOWTO (R_MIPS_INSERT_B),
453 EMPTY_HOWTO (R_MIPS_DELETE),
454
455 /* Get the higher value of a 64 bit addend. */
456 HOWTO (R_MIPS_HIGHER, /* type */
457 0, /* rightshift */
458 2, /* size (0 = byte, 1 = short, 2 = long) */
459 16, /* bitsize */
460 FALSE, /* pc_relative */
461 0, /* bitpos */
462 complain_overflow_dont, /* complain_on_overflow */
463 _bfd_mips_elf_generic_reloc, /* special_function */
464 "R_MIPS_HIGHER", /* name */
465 TRUE, /* partial_inplace */
466 0x0000ffff, /* src_mask */
467 0x0000ffff, /* dst_mask */
468 FALSE), /* pcrel_offset */
469
470 /* Get the highest value of a 64 bit addend. */
471 HOWTO (R_MIPS_HIGHEST, /* type */
472 0, /* rightshift */
473 2, /* size (0 = byte, 1 = short, 2 = long) */
474 16, /* bitsize */
475 FALSE, /* pc_relative */
476 0, /* bitpos */
477 complain_overflow_dont, /* complain_on_overflow */
478 _bfd_mips_elf_generic_reloc, /* special_function */
479 "R_MIPS_HIGHEST", /* name */
480 TRUE, /* partial_inplace */
481 0x0000ffff, /* src_mask */
482 0x0000ffff, /* dst_mask */
483 FALSE), /* pcrel_offset */
484
485 /* High 16 bits of displacement in global offset table. */
486 HOWTO (R_MIPS_CALL_HI16, /* type */
487 0, /* rightshift */
488 2, /* size (0 = byte, 1 = short, 2 = long) */
489 16, /* bitsize */
490 FALSE, /* pc_relative */
491 0, /* bitpos */
492 complain_overflow_dont, /* complain_on_overflow */
493 _bfd_mips_elf_generic_reloc, /* special_function */
494 "R_MIPS_CALL_HI16", /* name */
495 TRUE, /* partial_inplace */
496 0x0000ffff, /* src_mask */
497 0x0000ffff, /* dst_mask */
498 FALSE), /* pcrel_offset */
499
500 /* Low 16 bits of displacement in global offset table. */
501 HOWTO (R_MIPS_CALL_LO16, /* type */
502 0, /* rightshift */
503 2, /* size (0 = byte, 1 = short, 2 = long) */
504 16, /* bitsize */
505 FALSE, /* pc_relative */
506 0, /* bitpos */
507 complain_overflow_dont, /* complain_on_overflow */
508 _bfd_mips_elf_generic_reloc, /* special_function */
509 "R_MIPS_CALL_LO16", /* name */
510 TRUE, /* partial_inplace */
511 0x0000ffff, /* src_mask */
512 0x0000ffff, /* dst_mask */
513 FALSE), /* pcrel_offset */
514
515 /* Section displacement. */
516 HOWTO (R_MIPS_SCN_DISP, /* type */
517 0, /* rightshift */
518 2, /* size (0 = byte, 1 = short, 2 = long) */
519 32, /* bitsize */
520 FALSE, /* pc_relative */
521 0, /* bitpos */
522 complain_overflow_dont, /* complain_on_overflow */
523 _bfd_mips_elf_generic_reloc, /* special_function */
524 "R_MIPS_SCN_DISP", /* name */
525 TRUE, /* partial_inplace */
526 0xffffffff, /* src_mask */
527 0xffffffff, /* dst_mask */
528 FALSE), /* pcrel_offset */
529
530 EMPTY_HOWTO (R_MIPS_REL16),
531 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
532 EMPTY_HOWTO (R_MIPS_PJUMP),
533 EMPTY_HOWTO (R_MIPS_RELGOT),
534
535 /* Protected jump conversion. This is an optimization hint. No
536 relocation is required for correctness. */
537 HOWTO (R_MIPS_JALR, /* type */
538 0, /* rightshift */
539 2, /* size (0 = byte, 1 = short, 2 = long) */
540 32, /* bitsize */
541 FALSE, /* pc_relative */
542 0, /* bitpos */
543 complain_overflow_dont, /* complain_on_overflow */
544 _bfd_mips_elf_generic_reloc, /* special_function */
545 "R_MIPS_JALR", /* name */
546 FALSE, /* partial_inplace */
547 0x00000000, /* src_mask */
548 0x00000000, /* dst_mask */
549 FALSE), /* pcrel_offset */
550
551 /* TLS GD/LD dynamic relocations. */
552 HOWTO (R_MIPS_TLS_DTPMOD32, /* type */
553 0, /* rightshift */
554 2, /* size (0 = byte, 1 = short, 2 = long) */
555 32, /* bitsize */
556 FALSE, /* pc_relative */
557 0, /* bitpos */
558 complain_overflow_dont, /* complain_on_overflow */
559 _bfd_mips_elf_generic_reloc, /* special_function */
560 "R_MIPS_TLS_DTPMOD32", /* name */
561 TRUE, /* partial_inplace */
562 0xffffffff, /* src_mask */
563 0xffffffff, /* dst_mask */
564 FALSE), /* pcrel_offset */
565
566 HOWTO (R_MIPS_TLS_DTPREL32, /* type */
567 0, /* rightshift */
568 2, /* size (0 = byte, 1 = short, 2 = long) */
569 32, /* bitsize */
570 FALSE, /* pc_relative */
571 0, /* bitpos */
572 complain_overflow_dont, /* complain_on_overflow */
573 _bfd_mips_elf_generic_reloc, /* special_function */
574 "R_MIPS_TLS_DTPREL32", /* name */
575 TRUE, /* partial_inplace */
576 0xffffffff, /* src_mask */
577 0xffffffff, /* dst_mask */
578 FALSE), /* pcrel_offset */
579
580 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
581 EMPTY_HOWTO (R_MIPS_TLS_DTPREL64),
582
583 /* TLS general dynamic variable reference. */
584 HOWTO (R_MIPS_TLS_GD, /* type */
585 0, /* rightshift */
586 2, /* size (0 = byte, 1 = short, 2 = long) */
587 16, /* bitsize */
588 FALSE, /* pc_relative */
589 0, /* bitpos */
590 complain_overflow_signed, /* complain_on_overflow */
591 _bfd_mips_elf_generic_reloc, /* special_function */
592 "R_MIPS_TLS_GD", /* name */
593 TRUE, /* partial_inplace */
594 0x0000ffff, /* src_mask */
595 0x0000ffff, /* dst_mask */
596 FALSE), /* pcrel_offset */
597
598 /* TLS local dynamic variable reference. */
599 HOWTO (R_MIPS_TLS_LDM, /* type */
600 0, /* rightshift */
601 2, /* size (0 = byte, 1 = short, 2 = long) */
602 16, /* bitsize */
603 FALSE, /* pc_relative */
604 0, /* bitpos */
605 complain_overflow_signed, /* complain_on_overflow */
606 _bfd_mips_elf_generic_reloc, /* special_function */
607 "R_MIPS_TLS_LDM", /* name */
608 TRUE, /* partial_inplace */
609 0x0000ffff, /* src_mask */
610 0x0000ffff, /* dst_mask */
611 FALSE), /* pcrel_offset */
612
613 /* TLS local dynamic offset. */
614 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
615 0, /* rightshift */
616 2, /* size (0 = byte, 1 = short, 2 = long) */
617 16, /* bitsize */
618 FALSE, /* pc_relative */
619 0, /* bitpos */
620 complain_overflow_signed, /* complain_on_overflow */
621 _bfd_mips_elf_generic_reloc, /* special_function */
622 "R_MIPS_TLS_DTPREL_HI16", /* name */
623 TRUE, /* partial_inplace */
624 0x0000ffff, /* src_mask */
625 0x0000ffff, /* dst_mask */
626 FALSE), /* pcrel_offset */
627
628 /* TLS local dynamic offset. */
629 HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
630 0, /* rightshift */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
632 16, /* bitsize */
633 FALSE, /* pc_relative */
634 0, /* bitpos */
635 complain_overflow_signed, /* complain_on_overflow */
636 _bfd_mips_elf_generic_reloc, /* special_function */
637 "R_MIPS_TLS_DTPREL_LO16", /* name */
638 TRUE, /* partial_inplace */
639 0x0000ffff, /* src_mask */
640 0x0000ffff, /* dst_mask */
641 FALSE), /* pcrel_offset */
642
643 /* TLS thread pointer offset. */
644 HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
645 0, /* rightshift */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
647 16, /* bitsize */
648 FALSE, /* pc_relative */
649 0, /* bitpos */
650 complain_overflow_signed, /* complain_on_overflow */
651 _bfd_mips_elf_generic_reloc, /* special_function */
652 "R_MIPS_TLS_GOTTPREL", /* name */
653 TRUE, /* partial_inplace */
654 0x0000ffff, /* src_mask */
655 0x0000ffff, /* dst_mask */
656 FALSE), /* pcrel_offset */
657
658 /* TLS IE dynamic relocations. */
659 HOWTO (R_MIPS_TLS_TPREL32, /* type */
660 0, /* rightshift */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
662 32, /* 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_TPREL32", /* name */
668 TRUE, /* partial_inplace */
669 0xffffffff, /* src_mask */
670 0xffffffff, /* dst_mask */
671 FALSE), /* pcrel_offset */
672
673 EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
674
675 /* TLS thread pointer offset. */
676 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
677 0, /* rightshift */
678 2, /* size (0 = byte, 1 = short, 2 = long) */
679 16, /* bitsize */
680 FALSE, /* pc_relative */
681 0, /* bitpos */
682 complain_overflow_signed, /* complain_on_overflow */
683 _bfd_mips_elf_generic_reloc, /* special_function */
684 "R_MIPS_TLS_TPREL_HI16", /* name */
685 TRUE, /* partial_inplace */
686 0x0000ffff, /* src_mask */
687 0x0000ffff, /* dst_mask */
688 FALSE), /* pcrel_offset */
689
690 /* TLS thread pointer offset. */
691 HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
692 0, /* rightshift */
693 2, /* size (0 = byte, 1 = short, 2 = long) */
694 16, /* bitsize */
695 FALSE, /* pc_relative */
696 0, /* bitpos */
697 complain_overflow_signed, /* complain_on_overflow */
698 _bfd_mips_elf_generic_reloc, /* special_function */
699 "R_MIPS_TLS_TPREL_LO16", /* name */
700 TRUE, /* partial_inplace */
701 0x0000ffff, /* src_mask */
702 0x0000ffff, /* dst_mask */
703 FALSE), /* pcrel_offset */
704
705 /* 32 bit relocation with no addend. */
706 HOWTO (R_MIPS_GLOB_DAT, /* type */
707 0, /* rightshift */
708 2, /* size (0 = byte, 1 = short, 2 = long) */
709 32, /* bitsize */
710 FALSE, /* pc_relative */
711 0, /* bitpos */
712 complain_overflow_dont, /* complain_on_overflow */
713 _bfd_mips_elf_generic_reloc, /* special_function */
714 "R_MIPS_GLOB_DAT", /* name */
715 FALSE, /* partial_inplace */
716 0x0, /* src_mask */
717 0xffffffff, /* dst_mask */
718 FALSE), /* pcrel_offset */
719
720 EMPTY_HOWTO (52),
721 EMPTY_HOWTO (53),
722 EMPTY_HOWTO (54),
723 EMPTY_HOWTO (55),
724 EMPTY_HOWTO (56),
725 EMPTY_HOWTO (57),
726 EMPTY_HOWTO (58),
727 EMPTY_HOWTO (59),
728
729 HOWTO (R_MIPS_PC21_S2, /* type */
730 2, /* rightshift */
731 2, /* size (0 = byte, 1 = short, 2 = long) */
732 21, /* bitsize */
733 TRUE, /* pc_relative */
734 0, /* bitpos */
735 complain_overflow_signed, /* complain_on_overflow */
736 _bfd_mips_elf_generic_reloc, /* special_function */
737 "R_MIPS_PC21_S2", /* name */
738 TRUE, /* partial_inplace */
739 0x001fffff, /* src_mask */
740 0x001fffff, /* dst_mask */
741 TRUE), /* pcrel_offset */
742
743 HOWTO (R_MIPS_PC26_S2, /* type */
744 2, /* rightshift */
745 2, /* size (0 = byte, 1 = short, 2 = long) */
746 26, /* bitsize */
747 TRUE, /* pc_relative */
748 0, /* bitpos */
749 complain_overflow_signed, /* complain_on_overflow */
750 _bfd_mips_elf_generic_reloc, /* special_function */
751 "R_MIPS_PC26_S2", /* name */
752 TRUE, /* partial_inplace */
753 0x03ffffff, /* src_mask */
754 0x03ffffff, /* dst_mask */
755 TRUE), /* pcrel_offset */
756
757 HOWTO (R_MIPS_PC18_S3, /* type */
758 3, /* rightshift */
759 2, /* size (0 = byte, 1 = short, 2 = long) */
760 18, /* bitsize */
761 TRUE, /* pc_relative */
762 0, /* bitpos */
763 complain_overflow_signed, /* complain_on_overflow */
764 _bfd_mips_elf_generic_reloc, /* special_function */
765 "R_MIPS_PC18_S3", /* name */
766 TRUE, /* partial_inplace */
767 0x0003ffff, /* src_mask */
768 0x0003ffff, /* dst_mask */
769 TRUE), /* pcrel_offset */
770
771 HOWTO (R_MIPS_PC19_S2, /* type */
772 2, /* rightshift */
773 2, /* size (0 = byte, 1 = short, 2 = long) */
774 19, /* bitsize */
775 TRUE, /* pc_relative */
776 0, /* bitpos */
777 complain_overflow_signed, /* complain_on_overflow */
778 _bfd_mips_elf_generic_reloc, /* special_function */
779 "R_MIPS_PC19_S2", /* name */
780 TRUE, /* partial_inplace */
781 0x0007ffff, /* src_mask */
782 0x0007ffff, /* dst_mask */
783 TRUE), /* pcrel_offset */
784
785 HOWTO (R_MIPS_PCHI16, /* type */
786 16, /* rightshift */
787 2, /* size (0 = byte, 1 = short, 2 = long) */
788 16, /* bitsize */
789 TRUE, /* pc_relative */
790 0, /* bitpos */
791 complain_overflow_signed, /* complain_on_overflow */
792 _bfd_mips_elf_generic_reloc, /* special_function */
793 "R_MIPS_PCHI16", /* name */
794 TRUE, /* partial_inplace */
795 0x0000ffff, /* src_mask */
796 0x0000ffff, /* dst_mask */
797 TRUE), /* pcrel_offset */
798
799 HOWTO (R_MIPS_PCLO16, /* type */
800 0, /* rightshift */
801 2, /* size (0 = byte, 1 = short, 2 = long) */
802 16, /* bitsize */
803 TRUE, /* pc_relative */
804 0, /* bitpos */
805 complain_overflow_dont, /* complain_on_overflow */
806 _bfd_mips_elf_generic_reloc, /* special_function */
807 "R_MIPS_PCLO16", /* name */
808 TRUE, /* partial_inplace */
809 0x0000ffff, /* src_mask */
810 0x0000ffff, /* dst_mask */
811 TRUE), /* pcrel_offset */
812 };
813
814 /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
815 is a hack to make the linker think that we need 64 bit values. */
816 static reloc_howto_type elf_mips_ctor64_howto =
817 HOWTO (R_MIPS_64, /* type */
818 0, /* rightshift */
819 4, /* size (0 = byte, 1 = short, 2 = long) */
820 32, /* bitsize */
821 FALSE, /* pc_relative */
822 0, /* bitpos */
823 complain_overflow_signed, /* complain_on_overflow */
824 mips32_64bit_reloc, /* special_function */
825 "R_MIPS_64", /* name */
826 TRUE, /* partial_inplace */
827 0xffffffff, /* src_mask */
828 0xffffffff, /* dst_mask */
829 FALSE); /* pcrel_offset */
830
831 static reloc_howto_type elf_mips16_howto_table_rel[] =
832 {
833 /* The reloc used for the mips16 jump instruction. */
834 HOWTO (R_MIPS16_26, /* type */
835 2, /* rightshift */
836 2, /* size (0 = byte, 1 = short, 2 = long) */
837 26, /* bitsize */
838 FALSE, /* pc_relative */
839 0, /* bitpos */
840 complain_overflow_dont, /* complain_on_overflow */
841 /* This needs complex overflow
842 detection, because the upper four
843 bits must match the PC. */
844 _bfd_mips_elf_generic_reloc, /* special_function */
845 "R_MIPS16_26", /* name */
846 TRUE, /* partial_inplace */
847 0x3ffffff, /* src_mask */
848 0x3ffffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
850
851 /* The reloc used for the mips16 gprel instruction. */
852 HOWTO (R_MIPS16_GPREL, /* type */
853 0, /* rightshift */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
855 16, /* bitsize */
856 FALSE, /* pc_relative */
857 0, /* bitpos */
858 complain_overflow_signed, /* complain_on_overflow */
859 mips16_gprel_reloc, /* special_function */
860 "R_MIPS16_GPREL", /* name */
861 TRUE, /* partial_inplace */
862 0x0000ffff, /* src_mask */
863 0x0000ffff, /* dst_mask */
864 FALSE), /* pcrel_offset */
865
866 /* A MIPS16 reference to the global offset table. */
867 HOWTO (R_MIPS16_GOT16, /* type */
868 0, /* rightshift */
869 2, /* size (0 = byte, 1 = short, 2 = long) */
870 16, /* bitsize */
871 FALSE, /* pc_relative */
872 0, /* bitpos */
873 complain_overflow_dont, /* complain_on_overflow */
874 _bfd_mips_elf_got16_reloc, /* special_function */
875 "R_MIPS16_GOT16", /* name */
876 TRUE, /* partial_inplace */
877 0x0000ffff, /* src_mask */
878 0x0000ffff, /* dst_mask */
879 FALSE), /* pcrel_offset */
880
881 /* A MIPS16 call through the global offset table. */
882 HOWTO (R_MIPS16_CALL16, /* type */
883 0, /* rightshift */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
885 16, /* bitsize */
886 FALSE, /* pc_relative */
887 0, /* bitpos */
888 complain_overflow_dont, /* complain_on_overflow */
889 _bfd_mips_elf_generic_reloc, /* special_function */
890 "R_MIPS16_CALL16", /* name */
891 TRUE, /* partial_inplace */
892 0x0000ffff, /* src_mask */
893 0x0000ffff, /* dst_mask */
894 FALSE), /* pcrel_offset */
895
896 /* MIPS16 high 16 bits of symbol value. */
897 HOWTO (R_MIPS16_HI16, /* type */
898 16, /* rightshift */
899 2, /* size (0 = byte, 1 = short, 2 = long) */
900 16, /* bitsize */
901 FALSE, /* pc_relative */
902 0, /* bitpos */
903 complain_overflow_dont, /* complain_on_overflow */
904 _bfd_mips_elf_hi16_reloc, /* special_function */
905 "R_MIPS16_HI16", /* name */
906 TRUE, /* partial_inplace */
907 0x0000ffff, /* src_mask */
908 0x0000ffff, /* dst_mask */
909 FALSE), /* pcrel_offset */
910
911 /* MIPS16 low 16 bits of symbol value. */
912 HOWTO (R_MIPS16_LO16, /* type */
913 0, /* rightshift */
914 2, /* size (0 = byte, 1 = short, 2 = long) */
915 16, /* bitsize */
916 FALSE, /* pc_relative */
917 0, /* bitpos */
918 complain_overflow_dont, /* complain_on_overflow */
919 _bfd_mips_elf_lo16_reloc, /* special_function */
920 "R_MIPS16_LO16", /* name */
921 TRUE, /* partial_inplace */
922 0x0000ffff, /* src_mask */
923 0x0000ffff, /* dst_mask */
924 FALSE), /* pcrel_offset */
925
926 /* MIPS16 TLS general dynamic variable reference. */
927 HOWTO (R_MIPS16_TLS_GD, /* type */
928 0, /* rightshift */
929 2, /* size (0 = byte, 1 = short, 2 = long) */
930 16, /* bitsize */
931 FALSE, /* pc_relative */
932 0, /* bitpos */
933 complain_overflow_signed, /* complain_on_overflow */
934 _bfd_mips_elf_generic_reloc, /* special_function */
935 "R_MIPS16_TLS_GD", /* name */
936 TRUE, /* partial_inplace */
937 0x0000ffff, /* src_mask */
938 0x0000ffff, /* dst_mask */
939 FALSE), /* pcrel_offset */
940
941 /* MIPS16 TLS local dynamic variable reference. */
942 HOWTO (R_MIPS16_TLS_LDM, /* type */
943 0, /* rightshift */
944 2, /* size (0 = byte, 1 = short, 2 = long) */
945 16, /* bitsize */
946 FALSE, /* pc_relative */
947 0, /* bitpos */
948 complain_overflow_signed, /* complain_on_overflow */
949 _bfd_mips_elf_generic_reloc, /* special_function */
950 "R_MIPS16_TLS_LDM", /* name */
951 TRUE, /* partial_inplace */
952 0x0000ffff, /* src_mask */
953 0x0000ffff, /* dst_mask */
954 FALSE), /* pcrel_offset */
955
956 /* MIPS16 TLS local dynamic offset. */
957 HOWTO (R_MIPS16_TLS_DTPREL_HI16, /* type */
958 0, /* rightshift */
959 2, /* size (0 = byte, 1 = short, 2 = long) */
960 16, /* bitsize */
961 FALSE, /* pc_relative */
962 0, /* bitpos */
963 complain_overflow_signed, /* complain_on_overflow */
964 _bfd_mips_elf_generic_reloc, /* special_function */
965 "R_MIPS16_TLS_DTPREL_HI16", /* name */
966 TRUE, /* partial_inplace */
967 0x0000ffff, /* src_mask */
968 0x0000ffff, /* dst_mask */
969 FALSE), /* pcrel_offset */
970
971 /* MIPS16 TLS local dynamic offset. */
972 HOWTO (R_MIPS16_TLS_DTPREL_LO16, /* type */
973 0, /* rightshift */
974 2, /* size (0 = byte, 1 = short, 2 = long) */
975 16, /* bitsize */
976 FALSE, /* pc_relative */
977 0, /* bitpos */
978 complain_overflow_signed, /* complain_on_overflow */
979 _bfd_mips_elf_generic_reloc, /* special_function */
980 "R_MIPS16_TLS_DTPREL_LO16", /* name */
981 TRUE, /* partial_inplace */
982 0x0000ffff, /* src_mask */
983 0x0000ffff, /* dst_mask */
984 FALSE), /* pcrel_offset */
985
986 /* MIPS16 TLS thread pointer offset. */
987 HOWTO (R_MIPS16_TLS_GOTTPREL, /* type */
988 0, /* rightshift */
989 2, /* size (0 = byte, 1 = short, 2 = long) */
990 16, /* bitsize */
991 FALSE, /* pc_relative */
992 0, /* bitpos */
993 complain_overflow_signed, /* complain_on_overflow */
994 _bfd_mips_elf_generic_reloc, /* special_function */
995 "R_MIPS16_TLS_GOTTPREL", /* name */
996 TRUE, /* partial_inplace */
997 0x0000ffff, /* src_mask */
998 0x0000ffff, /* dst_mask */
999 FALSE), /* pcrel_offset */
1000
1001 /* MIPS16 TLS thread pointer offset. */
1002 HOWTO (R_MIPS16_TLS_TPREL_HI16, /* type */
1003 0, /* rightshift */
1004 2, /* size (0 = byte, 1 = short, 2 = long) */
1005 16, /* bitsize */
1006 FALSE, /* pc_relative */
1007 0, /* bitpos */
1008 complain_overflow_signed, /* complain_on_overflow */
1009 _bfd_mips_elf_generic_reloc, /* special_function */
1010 "R_MIPS16_TLS_TPREL_HI16", /* name */
1011 TRUE, /* partial_inplace */
1012 0x0000ffff, /* src_mask */
1013 0x0000ffff, /* dst_mask */
1014 FALSE), /* pcrel_offset */
1015
1016 /* MIPS16 TLS thread pointer offset. */
1017 HOWTO (R_MIPS16_TLS_TPREL_LO16, /* type */
1018 0, /* rightshift */
1019 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 16, /* bitsize */
1021 FALSE, /* pc_relative */
1022 0, /* bitpos */
1023 complain_overflow_signed, /* complain_on_overflow */
1024 _bfd_mips_elf_generic_reloc, /* special_function */
1025 "R_MIPS16_TLS_TPREL_LO16", /* name */
1026 TRUE, /* partial_inplace */
1027 0x0000ffff, /* src_mask */
1028 0x0000ffff, /* dst_mask */
1029 FALSE), /* pcrel_offset */
1030 };
1031
1032 static reloc_howto_type elf_micromips_howto_table_rel[] =
1033 {
1034 EMPTY_HOWTO (130),
1035 EMPTY_HOWTO (131),
1036 EMPTY_HOWTO (132),
1037
1038 /* 26 bit jump address. */
1039 HOWTO (R_MICROMIPS_26_S1, /* type */
1040 1, /* rightshift */
1041 2, /* size (0 = byte, 1 = short, 2 = long) */
1042 26, /* bitsize */
1043 FALSE, /* pc_relative */
1044 0, /* bitpos */
1045 complain_overflow_dont, /* complain_on_overflow */
1046 /* This needs complex overflow
1047 detection, because the upper four
1048 bits must match the PC. */
1049 _bfd_mips_elf_generic_reloc, /* special_function */
1050 "R_MICROMIPS_26_S1", /* name */
1051 TRUE, /* partial_inplace */
1052 0x3ffffff, /* src_mask */
1053 0x3ffffff, /* dst_mask */
1054 FALSE), /* pcrel_offset */
1055
1056 /* High 16 bits of symbol value. */
1057 HOWTO (R_MICROMIPS_HI16, /* type */
1058 16, /* rightshift */
1059 2, /* size (0 = byte, 1 = short, 2 = long) */
1060 16, /* bitsize */
1061 FALSE, /* pc_relative */
1062 0, /* bitpos */
1063 complain_overflow_dont, /* complain_on_overflow */
1064 _bfd_mips_elf_hi16_reloc, /* special_function */
1065 "R_MICROMIPS_HI16", /* name */
1066 TRUE, /* partial_inplace */
1067 0x0000ffff, /* src_mask */
1068 0x0000ffff, /* dst_mask */
1069 FALSE), /* pcrel_offset */
1070
1071 /* Low 16 bits of symbol value. */
1072 HOWTO (R_MICROMIPS_LO16, /* type */
1073 0, /* rightshift */
1074 2, /* size (0 = byte, 1 = short, 2 = long) */
1075 16, /* bitsize */
1076 FALSE, /* pc_relative */
1077 0, /* bitpos */
1078 complain_overflow_dont, /* complain_on_overflow */
1079 _bfd_mips_elf_lo16_reloc, /* special_function */
1080 "R_MICROMIPS_LO16", /* name */
1081 TRUE, /* partial_inplace */
1082 0x0000ffff, /* src_mask */
1083 0x0000ffff, /* dst_mask */
1084 FALSE), /* pcrel_offset */
1085
1086 /* GP relative reference. */
1087 HOWTO (R_MICROMIPS_GPREL16, /* type */
1088 0, /* rightshift */
1089 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 16, /* bitsize */
1091 FALSE, /* pc_relative */
1092 0, /* bitpos */
1093 complain_overflow_signed, /* complain_on_overflow */
1094 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1095 "R_MICROMIPS_GPREL16", /* name */
1096 TRUE, /* partial_inplace */
1097 0x0000ffff, /* src_mask */
1098 0x0000ffff, /* dst_mask */
1099 FALSE), /* pcrel_offset */
1100
1101 /* Reference to literal section. */
1102 HOWTO (R_MICROMIPS_LITERAL, /* type */
1103 0, /* rightshift */
1104 2, /* size (0 = byte, 1 = short, 2 = long) */
1105 16, /* bitsize */
1106 FALSE, /* pc_relative */
1107 0, /* bitpos */
1108 complain_overflow_signed, /* complain_on_overflow */
1109 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1110 "R_MICROMIPS_LITERAL", /* name */
1111 TRUE, /* partial_inplace */
1112 0x0000ffff, /* src_mask */
1113 0x0000ffff, /* dst_mask */
1114 FALSE), /* pcrel_offset */
1115
1116 /* Reference to global offset table. */
1117 HOWTO (R_MICROMIPS_GOT16, /* type */
1118 0, /* rightshift */
1119 2, /* size (0 = byte, 1 = short, 2 = long) */
1120 16, /* bitsize */
1121 FALSE, /* pc_relative */
1122 0, /* bitpos */
1123 complain_overflow_signed, /* complain_on_overflow */
1124 _bfd_mips_elf_got16_reloc, /* special_function */
1125 "R_MICROMIPS_GOT16", /* name */
1126 TRUE, /* partial_inplace */
1127 0x0000ffff, /* src_mask */
1128 0x0000ffff, /* dst_mask */
1129 FALSE), /* pcrel_offset */
1130
1131 /* This is for microMIPS branches. */
1132 HOWTO (R_MICROMIPS_PC7_S1, /* type */
1133 1, /* rightshift */
1134 1, /* size (0 = byte, 1 = short, 2 = long) */
1135 7, /* bitsize */
1136 TRUE, /* pc_relative */
1137 0, /* bitpos */
1138 complain_overflow_signed, /* complain_on_overflow */
1139 _bfd_mips_elf_generic_reloc, /* special_function */
1140 "R_MICROMIPS_PC7_S1", /* name */
1141 TRUE, /* partial_inplace */
1142 0x0000007f, /* src_mask */
1143 0x0000007f, /* dst_mask */
1144 TRUE), /* pcrel_offset */
1145
1146 HOWTO (R_MICROMIPS_PC10_S1, /* type */
1147 1, /* rightshift */
1148 1, /* size (0 = byte, 1 = short, 2 = long) */
1149 10, /* bitsize */
1150 TRUE, /* pc_relative */
1151 0, /* bitpos */
1152 complain_overflow_signed, /* complain_on_overflow */
1153 _bfd_mips_elf_generic_reloc, /* special_function */
1154 "R_MICROMIPS_PC10_S1", /* name */
1155 TRUE, /* partial_inplace */
1156 0x000003ff, /* src_mask */
1157 0x000003ff, /* dst_mask */
1158 TRUE), /* pcrel_offset */
1159
1160 HOWTO (R_MICROMIPS_PC16_S1, /* type */
1161 1, /* rightshift */
1162 2, /* size (0 = byte, 1 = short, 2 = long) */
1163 16, /* bitsize */
1164 TRUE, /* pc_relative */
1165 0, /* bitpos */
1166 complain_overflow_signed, /* complain_on_overflow */
1167 _bfd_mips_elf_generic_reloc, /* special_function */
1168 "R_MICROMIPS_PC16_S1", /* name */
1169 TRUE, /* partial_inplace */
1170 0x0000ffff, /* src_mask */
1171 0x0000ffff, /* dst_mask */
1172 TRUE), /* pcrel_offset */
1173
1174 /* 16 bit call through global offset table. */
1175 HOWTO (R_MICROMIPS_CALL16, /* type */
1176 0, /* rightshift */
1177 2, /* size (0 = byte, 1 = short, 2 = long) */
1178 16, /* bitsize */
1179 FALSE, /* pc_relative */
1180 0, /* bitpos */
1181 complain_overflow_signed, /* complain_on_overflow */
1182 _bfd_mips_elf_generic_reloc, /* special_function */
1183 "R_MICROMIPS_CALL16", /* name */
1184 TRUE, /* partial_inplace */
1185 0x0000ffff, /* src_mask */
1186 0x0000ffff, /* dst_mask */
1187 FALSE), /* pcrel_offset */
1188
1189 EMPTY_HOWTO (143),
1190 EMPTY_HOWTO (144),
1191
1192 /* Displacement in the global offset table. */
1193 HOWTO (R_MICROMIPS_GOT_DISP, /* type */
1194 0, /* rightshift */
1195 2, /* size (0 = byte, 1 = short, 2 = long) */
1196 16, /* bitsize */
1197 FALSE, /* pc_relative */
1198 0, /* bitpos */
1199 complain_overflow_signed, /* complain_on_overflow */
1200 _bfd_mips_elf_generic_reloc, /* special_function */
1201 "R_MICROMIPS_GOT_DISP",/* name */
1202 TRUE, /* partial_inplace */
1203 0x0000ffff, /* src_mask */
1204 0x0000ffff, /* dst_mask */
1205 FALSE), /* pcrel_offset */
1206
1207 /* Displacement to page pointer in the global offset table. */
1208 HOWTO (R_MICROMIPS_GOT_PAGE, /* type */
1209 0, /* rightshift */
1210 2, /* size (0 = byte, 1 = short, 2 = long) */
1211 16, /* bitsize */
1212 FALSE, /* pc_relative */
1213 0, /* bitpos */
1214 complain_overflow_signed, /* complain_on_overflow */
1215 _bfd_mips_elf_generic_reloc, /* special_function */
1216 "R_MICROMIPS_GOT_PAGE",/* name */
1217 TRUE, /* partial_inplace */
1218 0x0000ffff, /* src_mask */
1219 0x0000ffff, /* dst_mask */
1220 FALSE), /* pcrel_offset */
1221
1222 /* Offset from page pointer in the global offset table. */
1223 HOWTO (R_MICROMIPS_GOT_OFST, /* type */
1224 0, /* rightshift */
1225 2, /* size (0 = byte, 1 = short, 2 = long) */
1226 16, /* bitsize */
1227 FALSE, /* pc_relative */
1228 0, /* bitpos */
1229 complain_overflow_signed, /* complain_on_overflow */
1230 _bfd_mips_elf_generic_reloc, /* special_function */
1231 "R_MICROMIPS_GOT_OFST",/* name */
1232 TRUE, /* partial_inplace */
1233 0x0000ffff, /* src_mask */
1234 0x0000ffff, /* dst_mask */
1235 FALSE), /* pcrel_offset */
1236
1237 /* High 16 bits of displacement in global offset table. */
1238 HOWTO (R_MICROMIPS_GOT_HI16, /* type */
1239 0, /* rightshift */
1240 2, /* size (0 = byte, 1 = short, 2 = long) */
1241 16, /* bitsize */
1242 FALSE, /* pc_relative */
1243 0, /* bitpos */
1244 complain_overflow_dont, /* complain_on_overflow */
1245 _bfd_mips_elf_generic_reloc, /* special_function */
1246 "R_MICROMIPS_GOT_HI16",/* name */
1247 TRUE, /* partial_inplace */
1248 0x0000ffff, /* src_mask */
1249 0x0000ffff, /* dst_mask */
1250 FALSE), /* pcrel_offset */
1251
1252 /* Low 16 bits of displacement in global offset table. */
1253 HOWTO (R_MICROMIPS_GOT_LO16, /* type */
1254 0, /* rightshift */
1255 2, /* size (0 = byte, 1 = short, 2 = long) */
1256 16, /* bitsize */
1257 FALSE, /* pc_relative */
1258 0, /* bitpos */
1259 complain_overflow_dont, /* complain_on_overflow */
1260 _bfd_mips_elf_generic_reloc, /* special_function */
1261 "R_MICROMIPS_GOT_LO16",/* name */
1262 TRUE, /* partial_inplace */
1263 0x0000ffff, /* src_mask */
1264 0x0000ffff, /* dst_mask */
1265 FALSE), /* pcrel_offset */
1266
1267 /* 64 bit subtraction. Used in the N32 ABI. */
1268 HOWTO (R_MICROMIPS_SUB, /* type */
1269 0, /* rightshift */
1270 4, /* size (0 = byte, 1 = short, 2 = long) */
1271 64, /* bitsize */
1272 FALSE, /* pc_relative */
1273 0, /* bitpos */
1274 complain_overflow_dont, /* complain_on_overflow */
1275 _bfd_mips_elf_generic_reloc, /* special_function */
1276 "R_MICROMIPS_SUB", /* name */
1277 TRUE, /* partial_inplace */
1278 MINUS_ONE, /* src_mask */
1279 MINUS_ONE, /* dst_mask */
1280 FALSE), /* pcrel_offset */
1281
1282 /* Get the higher value of a 64 bit addend. */
1283 HOWTO (R_MICROMIPS_HIGHER, /* type */
1284 0, /* rightshift */
1285 2, /* size (0 = byte, 1 = short, 2 = long) */
1286 16, /* bitsize */
1287 FALSE, /* pc_relative */
1288 0, /* bitpos */
1289 complain_overflow_dont, /* complain_on_overflow */
1290 _bfd_mips_elf_generic_reloc, /* special_function */
1291 "R_MICROMIPS_HIGHER", /* name */
1292 TRUE, /* partial_inplace */
1293 0x0000ffff, /* src_mask */
1294 0x0000ffff, /* dst_mask */
1295 FALSE), /* pcrel_offset */
1296
1297 /* Get the highest value of a 64 bit addend. */
1298 HOWTO (R_MICROMIPS_HIGHEST, /* type */
1299 0, /* rightshift */
1300 2, /* size (0 = byte, 1 = short, 2 = long) */
1301 16, /* 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_MICROMIPS_HIGHEST", /* name */
1307 TRUE, /* partial_inplace */
1308 0x0000ffff, /* src_mask */
1309 0x0000ffff, /* dst_mask */
1310 FALSE), /* pcrel_offset */
1311
1312 /* High 16 bits of displacement in global offset table. */
1313 HOWTO (R_MICROMIPS_CALL_HI16, /* type */
1314 0, /* rightshift */
1315 2, /* size (0 = byte, 1 = short, 2 = long) */
1316 16, /* bitsize */
1317 FALSE, /* pc_relative */
1318 0, /* bitpos */
1319 complain_overflow_dont, /* complain_on_overflow */
1320 _bfd_mips_elf_generic_reloc, /* special_function */
1321 "R_MICROMIPS_CALL_HI16",/* name */
1322 TRUE, /* partial_inplace */
1323 0x0000ffff, /* src_mask */
1324 0x0000ffff, /* dst_mask */
1325 FALSE), /* pcrel_offset */
1326
1327 /* Low 16 bits of displacement in global offset table. */
1328 HOWTO (R_MICROMIPS_CALL_LO16, /* type */
1329 0, /* rightshift */
1330 2, /* size (0 = byte, 1 = short, 2 = long) */
1331 16, /* bitsize */
1332 FALSE, /* pc_relative */
1333 0, /* bitpos */
1334 complain_overflow_dont, /* complain_on_overflow */
1335 _bfd_mips_elf_generic_reloc, /* special_function */
1336 "R_MICROMIPS_CALL_LO16",/* name */
1337 TRUE, /* partial_inplace */
1338 0x0000ffff, /* src_mask */
1339 0x0000ffff, /* dst_mask */
1340 FALSE), /* pcrel_offset */
1341
1342 /* Section displacement. */
1343 HOWTO (R_MICROMIPS_SCN_DISP, /* type */
1344 0, /* rightshift */
1345 2, /* size (0 = byte, 1 = short, 2 = long) */
1346 32, /* bitsize */
1347 FALSE, /* pc_relative */
1348 0, /* bitpos */
1349 complain_overflow_dont, /* complain_on_overflow */
1350 _bfd_mips_elf_generic_reloc, /* special_function */
1351 "R_MICROMIPS_SCN_DISP",/* name */
1352 TRUE, /* partial_inplace */
1353 0xffffffff, /* src_mask */
1354 0xffffffff, /* dst_mask */
1355 FALSE), /* pcrel_offset */
1356
1357 /* Protected jump conversion. This is an optimization hint. No
1358 relocation is required for correctness. */
1359 HOWTO (R_MICROMIPS_JALR, /* type */
1360 0, /* rightshift */
1361 2, /* size (0 = byte, 1 = short, 2 = long) */
1362 32, /* bitsize */
1363 FALSE, /* pc_relative */
1364 0, /* bitpos */
1365 complain_overflow_dont, /* complain_on_overflow */
1366 _bfd_mips_elf_generic_reloc, /* special_function */
1367 "R_MICROMIPS_JALR", /* name */
1368 FALSE, /* partial_inplace */
1369 0x00000000, /* src_mask */
1370 0x00000000, /* dst_mask */
1371 FALSE), /* pcrel_offset */
1372
1373 /* Low 16 bits of symbol value. Note that the high 16 bits of symbol values
1374 must be zero. This is used for relaxation. */
1375 HOWTO (R_MICROMIPS_HI0_LO16, /* type */
1376 0, /* rightshift */
1377 2, /* size (0 = byte, 1 = short, 2 = long) */
1378 16, /* bitsize */
1379 FALSE, /* pc_relative */
1380 0, /* bitpos */
1381 complain_overflow_dont, /* complain_on_overflow */
1382 _bfd_mips_elf_generic_reloc, /* special_function */
1383 "R_MICROMIPS_HI0_LO16",/* name */
1384 TRUE, /* partial_inplace */
1385 0x0000ffff, /* src_mask */
1386 0x0000ffff, /* dst_mask */
1387 FALSE), /* pcrel_offset */
1388
1389 EMPTY_HOWTO (158),
1390 EMPTY_HOWTO (159),
1391 EMPTY_HOWTO (160),
1392 EMPTY_HOWTO (161),
1393
1394 /* TLS general dynamic variable reference. */
1395 HOWTO (R_MICROMIPS_TLS_GD, /* type */
1396 0, /* rightshift */
1397 2, /* size (0 = byte, 1 = short, 2 = long) */
1398 16, /* bitsize */
1399 FALSE, /* pc_relative */
1400 0, /* bitpos */
1401 complain_overflow_signed, /* complain_on_overflow */
1402 _bfd_mips_elf_generic_reloc, /* special_function */
1403 "R_MICROMIPS_TLS_GD", /* name */
1404 TRUE, /* partial_inplace */
1405 0x0000ffff, /* src_mask */
1406 0x0000ffff, /* dst_mask */
1407 FALSE), /* pcrel_offset */
1408
1409 /* TLS local dynamic variable reference. */
1410 HOWTO (R_MICROMIPS_TLS_LDM, /* type */
1411 0, /* rightshift */
1412 2, /* size (0 = byte, 1 = short, 2 = long) */
1413 16, /* bitsize */
1414 FALSE, /* pc_relative */
1415 0, /* bitpos */
1416 complain_overflow_signed, /* complain_on_overflow */
1417 _bfd_mips_elf_generic_reloc, /* special_function */
1418 "R_MICROMIPS_TLS_LDM", /* name */
1419 TRUE, /* partial_inplace */
1420 0x0000ffff, /* src_mask */
1421 0x0000ffff, /* dst_mask */
1422 FALSE), /* pcrel_offset */
1423
1424 /* TLS local dynamic offset. */
1425 HOWTO (R_MICROMIPS_TLS_DTPREL_HI16, /* type */
1426 0, /* rightshift */
1427 2, /* size (0 = byte, 1 = short, 2 = long) */
1428 16, /* bitsize */
1429 FALSE, /* pc_relative */
1430 0, /* bitpos */
1431 complain_overflow_signed, /* complain_on_overflow */
1432 _bfd_mips_elf_generic_reloc, /* special_function */
1433 "R_MICROMIPS_TLS_DTPREL_HI16", /* name */
1434 TRUE, /* partial_inplace */
1435 0x0000ffff, /* src_mask */
1436 0x0000ffff, /* dst_mask */
1437 FALSE), /* pcrel_offset */
1438
1439 /* TLS local dynamic offset. */
1440 HOWTO (R_MICROMIPS_TLS_DTPREL_LO16, /* type */
1441 0, /* rightshift */
1442 2, /* size (0 = byte, 1 = short, 2 = long) */
1443 16, /* bitsize */
1444 FALSE, /* pc_relative */
1445 0, /* bitpos */
1446 complain_overflow_signed, /* complain_on_overflow */
1447 _bfd_mips_elf_generic_reloc, /* special_function */
1448 "R_MICROMIPS_TLS_DTPREL_LO16", /* name */
1449 TRUE, /* partial_inplace */
1450 0x0000ffff, /* src_mask */
1451 0x0000ffff, /* dst_mask */
1452 FALSE), /* pcrel_offset */
1453
1454 /* TLS thread pointer offset. */
1455 HOWTO (R_MICROMIPS_TLS_GOTTPREL, /* type */
1456 0, /* rightshift */
1457 2, /* size (0 = byte, 1 = short, 2 = long) */
1458 16, /* bitsize */
1459 FALSE, /* pc_relative */
1460 0, /* bitpos */
1461 complain_overflow_signed, /* complain_on_overflow */
1462 _bfd_mips_elf_generic_reloc, /* special_function */
1463 "R_MICROMIPS_TLS_GOTTPREL", /* name */
1464 TRUE, /* partial_inplace */
1465 0x0000ffff, /* src_mask */
1466 0x0000ffff, /* dst_mask */
1467 FALSE), /* pcrel_offset */
1468
1469 EMPTY_HOWTO (167),
1470 EMPTY_HOWTO (168),
1471
1472 /* TLS thread pointer offset. */
1473 HOWTO (R_MICROMIPS_TLS_TPREL_HI16, /* type */
1474 0, /* rightshift */
1475 2, /* size (0 = byte, 1 = short, 2 = long) */
1476 16, /* bitsize */
1477 FALSE, /* pc_relative */
1478 0, /* bitpos */
1479 complain_overflow_signed, /* complain_on_overflow */
1480 _bfd_mips_elf_generic_reloc, /* special_function */
1481 "R_MICROMIPS_TLS_TPREL_HI16", /* name */
1482 TRUE, /* partial_inplace */
1483 0x0000ffff, /* src_mask */
1484 0x0000ffff, /* dst_mask */
1485 FALSE), /* pcrel_offset */
1486
1487 /* TLS thread pointer offset. */
1488 HOWTO (R_MICROMIPS_TLS_TPREL_LO16, /* type */
1489 0, /* rightshift */
1490 2, /* size (0 = byte, 1 = short, 2 = long) */
1491 16, /* bitsize */
1492 FALSE, /* pc_relative */
1493 0, /* bitpos */
1494 complain_overflow_signed, /* complain_on_overflow */
1495 _bfd_mips_elf_generic_reloc, /* special_function */
1496 "R_MICROMIPS_TLS_TPREL_LO16", /* name */
1497 TRUE, /* partial_inplace */
1498 0x0000ffff, /* src_mask */
1499 0x0000ffff, /* dst_mask */
1500 FALSE), /* pcrel_offset */
1501
1502 EMPTY_HOWTO (171),
1503
1504 /* GP- and PC-relative relocations. */
1505 HOWTO (R_MICROMIPS_GPREL7_S2, /* type */
1506 2, /* rightshift */
1507 1, /* size (0 = byte, 1 = short, 2 = long) */
1508 7, /* bitsize */
1509 FALSE, /* pc_relative */
1510 0, /* bitpos */
1511 complain_overflow_signed, /* complain_on_overflow */
1512 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1513 "R_MICROMIPS_GPREL7_S2", /* name */
1514 TRUE, /* partial_inplace */
1515 0x0000007f, /* src_mask */
1516 0x0000007f, /* dst_mask */
1517 FALSE), /* pcrel_offset */
1518
1519 HOWTO (R_MICROMIPS_PC23_S2, /* type */
1520 2, /* rightshift */
1521 2, /* size (0 = byte, 1 = short, 2 = long) */
1522 23, /* bitsize */
1523 TRUE, /* pc_relative */
1524 0, /* bitpos */
1525 complain_overflow_signed, /* complain_on_overflow */
1526 _bfd_mips_elf_generic_reloc, /* special_function */
1527 "R_MICROMIPS_PC23_S2", /* name */
1528 TRUE, /* partial_inplace */
1529 0x007fffff, /* src_mask */
1530 0x007fffff, /* dst_mask */
1531 TRUE), /* pcrel_offset */
1532 };
1533
1534 /* 16 bit offset for pc-relative branches. */
1535 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1536 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1537 2, /* rightshift */
1538 2, /* size (0 = byte, 1 = short, 2 = long) */
1539 16, /* bitsize */
1540 TRUE, /* pc_relative */
1541 0, /* bitpos */
1542 complain_overflow_signed, /* complain_on_overflow */
1543 _bfd_mips_elf_generic_reloc, /* special_function */
1544 "R_MIPS_GNU_REL16_S2", /* name */
1545 TRUE, /* partial_inplace */
1546 0xffff, /* src_mask */
1547 0xffff, /* dst_mask */
1548 TRUE); /* pcrel_offset */
1549
1550 /* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
1551 It was co-opted by mips-linux for exception-handling data. It is no
1552 longer used, but should continue to be supported by the linker for
1553 backward compatibility. (GCC stopped using it in May, 2004.) */
1554 static reloc_howto_type elf_mips_gnu_pcrel32 =
1555 HOWTO (R_MIPS_PC32, /* type */
1556 0, /* rightshift */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1558 32, /* bitsize */
1559 TRUE, /* pc_relative */
1560 0, /* bitpos */
1561 complain_overflow_signed, /* complain_on_overflow */
1562 _bfd_mips_elf_generic_reloc, /* special_function */
1563 "R_MIPS_PC32", /* name */
1564 TRUE, /* partial_inplace */
1565 0xffffffff, /* src_mask */
1566 0xffffffff, /* dst_mask */
1567 TRUE); /* pcrel_offset */
1568
1569 /* GNU extension to record C++ vtable hierarchy */
1570 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1571 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1572 0, /* rightshift */
1573 2, /* size (0 = byte, 1 = short, 2 = long) */
1574 0, /* bitsize */
1575 FALSE, /* pc_relative */
1576 0, /* bitpos */
1577 complain_overflow_dont, /* complain_on_overflow */
1578 NULL, /* special_function */
1579 "R_MIPS_GNU_VTINHERIT", /* name */
1580 FALSE, /* partial_inplace */
1581 0, /* src_mask */
1582 0, /* dst_mask */
1583 FALSE); /* pcrel_offset */
1584
1585 /* GNU extension to record C++ vtable member usage */
1586 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1587 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1588 0, /* rightshift */
1589 2, /* size (0 = byte, 1 = short, 2 = long) */
1590 0, /* bitsize */
1591 FALSE, /* pc_relative */
1592 0, /* bitpos */
1593 complain_overflow_dont, /* complain_on_overflow */
1594 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1595 "R_MIPS_GNU_VTENTRY", /* name */
1596 FALSE, /* partial_inplace */
1597 0, /* src_mask */
1598 0, /* dst_mask */
1599 FALSE); /* pcrel_offset */
1600
1601 /* Originally a VxWorks extension, but now used for other systems too. */
1602 static reloc_howto_type elf_mips_copy_howto =
1603 HOWTO (R_MIPS_COPY, /* type */
1604 0, /* rightshift */
1605 0, /* this one is variable size */
1606 0, /* bitsize */
1607 FALSE, /* pc_relative */
1608 0, /* bitpos */
1609 complain_overflow_bitfield, /* complain_on_overflow */
1610 _bfd_mips_elf_generic_reloc, /* special_function */
1611 "R_MIPS_COPY", /* name */
1612 FALSE, /* partial_inplace */
1613 0x0, /* src_mask */
1614 0x0, /* dst_mask */
1615 FALSE); /* pcrel_offset */
1616
1617 /* Originally a VxWorks extension, but now used for other systems too. */
1618 static reloc_howto_type elf_mips_jump_slot_howto =
1619 HOWTO (R_MIPS_JUMP_SLOT, /* type */
1620 0, /* rightshift */
1621 2, /* size (0 = byte, 1 = short, 2 = long) */
1622 32, /* bitsize */
1623 FALSE, /* pc_relative */
1624 0, /* bitpos */
1625 complain_overflow_bitfield, /* complain_on_overflow */
1626 _bfd_mips_elf_generic_reloc, /* special_function */
1627 "R_MIPS_JUMP_SLOT", /* name */
1628 FALSE, /* partial_inplace */
1629 0x0, /* src_mask */
1630 0x0, /* dst_mask */
1631 FALSE); /* pcrel_offset */
1632
1633 /* Used in EH tables. */
1634 static reloc_howto_type elf_mips_eh_howto =
1635 HOWTO (R_MIPS_EH, /* type */
1636 0, /* rightshift */
1637 2, /* size (0 = byte, 1 = short, 2 = long) */
1638 32, /* bitsize */
1639 FALSE, /* pc_relative */
1640 0, /* bitpos */
1641 complain_overflow_signed, /* complain_on_overflow */
1642 _bfd_mips_elf_generic_reloc, /* special_function */
1643 "R_MIPS_EH", /* name */
1644 TRUE, /* partial_inplace */
1645 0xffffffff, /* src_mask */
1646 0xffffffff, /* dst_mask */
1647 FALSE); /* pcrel_offset */
1648
1649 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1650 dangerous relocation. */
1651
1652 static bfd_boolean
1653 mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1654 {
1655 unsigned int count;
1656 asymbol **sym;
1657 unsigned int i;
1658
1659 /* If we've already figured out what GP will be, just return it. */
1660 *pgp = _bfd_get_gp_value (output_bfd);
1661 if (*pgp)
1662 return TRUE;
1663
1664 count = bfd_get_symcount (output_bfd);
1665 sym = bfd_get_outsymbols (output_bfd);
1666
1667 /* The linker script will have created a symbol named `_gp' with the
1668 appropriate value. */
1669 if (sym == NULL)
1670 i = count;
1671 else
1672 {
1673 for (i = 0; i < count; i++, sym++)
1674 {
1675 register const char *name;
1676
1677 name = bfd_asymbol_name (*sym);
1678 if (*name == '_' && strcmp (name, "_gp") == 0)
1679 {
1680 *pgp = bfd_asymbol_value (*sym);
1681 _bfd_set_gp_value (output_bfd, *pgp);
1682 break;
1683 }
1684 }
1685 }
1686
1687 if (i >= count)
1688 {
1689 /* Only get the error once. */
1690 *pgp = 4;
1691 _bfd_set_gp_value (output_bfd, *pgp);
1692 return FALSE;
1693 }
1694
1695 return TRUE;
1696 }
1697
1698 /* We have to figure out the gp value, so that we can adjust the
1699 symbol value correctly. We look up the symbol _gp in the output
1700 BFD. If we can't find it, we're stuck. We cache it in the ELF
1701 target data. We don't need to adjust the symbol value for an
1702 external symbol if we are producing relocatable output. */
1703
1704 static bfd_reloc_status_type
1705 mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1706 char **error_message, bfd_vma *pgp)
1707 {
1708 if (bfd_is_und_section (symbol->section)
1709 && ! relocatable)
1710 {
1711 *pgp = 0;
1712 return bfd_reloc_undefined;
1713 }
1714
1715 *pgp = _bfd_get_gp_value (output_bfd);
1716 if (*pgp == 0
1717 && (! relocatable
1718 || (symbol->flags & BSF_SECTION_SYM) != 0))
1719 {
1720 if (relocatable)
1721 {
1722 /* Make up a value. */
1723 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
1724 _bfd_set_gp_value (output_bfd, *pgp);
1725 }
1726 else if (!mips_elf_assign_gp (output_bfd, pgp))
1727 {
1728 *error_message =
1729 (char *) _("GP relative relocation when _gp not defined");
1730 return bfd_reloc_dangerous;
1731 }
1732 }
1733
1734 return bfd_reloc_ok;
1735 }
1736
1737 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1738 become the offset from the gp register. This function also handles
1739 R_MIPS_LITERAL relocations, although those can be handled more
1740 cleverly because the entries in the .lit8 and .lit4 sections can be
1741 merged. */
1742
1743 bfd_reloc_status_type
1744 _bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry,
1745 asymbol *symbol, void *data,
1746 asection *input_section, bfd *output_bfd,
1747 char **error_message)
1748 {
1749 bfd_boolean relocatable;
1750 bfd_reloc_status_type ret;
1751 bfd_byte *location;
1752 bfd_vma gp;
1753
1754 /* R_MIPS_LITERAL/R_MICROMIPS_LITERAL relocations are defined for local
1755 symbols only. */
1756 if (literal_reloc_p (reloc_entry->howto->type)
1757 && output_bfd != NULL
1758 && (symbol->flags & BSF_SECTION_SYM) == 0
1759 && (symbol->flags & BSF_LOCAL) != 0)
1760 {
1761 *error_message = (char *)
1762 _("literal relocation occurs for an external symbol");
1763 return bfd_reloc_outofrange;
1764 }
1765
1766 if (output_bfd != NULL)
1767 relocatable = TRUE;
1768 else
1769 {
1770 relocatable = FALSE;
1771 output_bfd = symbol->section->output_section->owner;
1772 }
1773
1774 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1775 &gp);
1776 if (ret != bfd_reloc_ok)
1777 return ret;
1778
1779 location = (bfd_byte *) data + reloc_entry->address;
1780 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1781 location);
1782 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1783 input_section, relocatable,
1784 data, gp);
1785 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1786 location);
1787
1788 return ret;
1789 }
1790
1791 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
1792 become the offset from the gp register. */
1793
1794 static bfd_reloc_status_type
1795 mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1796 void *data, asection *input_section, bfd *output_bfd,
1797 char **error_message)
1798 {
1799 bfd_boolean relocatable;
1800 bfd_reloc_status_type ret;
1801 bfd_vma gp;
1802
1803 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1804 if (output_bfd != NULL
1805 && (symbol->flags & BSF_SECTION_SYM) == 0
1806 && (symbol->flags & BSF_LOCAL) != 0)
1807 {
1808 *error_message = (char *)
1809 _("32bits gp relative relocation occurs for an external symbol");
1810 return bfd_reloc_outofrange;
1811 }
1812
1813 if (output_bfd != NULL)
1814 relocatable = TRUE;
1815 else
1816 {
1817 relocatable = FALSE;
1818 output_bfd = symbol->section->output_section->owner;
1819 }
1820
1821 ret = mips_elf_final_gp (output_bfd, symbol, relocatable,
1822 error_message, &gp);
1823 if (ret != bfd_reloc_ok)
1824 return ret;
1825
1826 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
1827 relocatable, data, gp);
1828 }
1829
1830 static bfd_reloc_status_type
1831 gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
1832 asection *input_section, bfd_boolean relocatable,
1833 void *data, bfd_vma gp)
1834 {
1835 bfd_vma relocation;
1836 bfd_vma val;
1837
1838 if (bfd_is_com_section (symbol->section))
1839 relocation = 0;
1840 else
1841 relocation = symbol->value;
1842
1843 relocation += symbol->section->output_section->vma;
1844 relocation += symbol->section->output_offset;
1845
1846 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1847 return bfd_reloc_outofrange;
1848
1849 /* Set val to the offset into the section or symbol. */
1850 val = reloc_entry->addend;
1851
1852 if (reloc_entry->howto->partial_inplace)
1853 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
1854
1855 /* Adjust val for the final section location and GP value. If we
1856 are producing relocatable output, we don't want to do this for
1857 an external symbol. */
1858 if (! relocatable
1859 || (symbol->flags & BSF_SECTION_SYM) != 0)
1860 val += relocation - gp;
1861
1862 if (reloc_entry->howto->partial_inplace)
1863 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
1864 else
1865 reloc_entry->addend = val;
1866
1867 if (relocatable)
1868 reloc_entry->address += input_section->output_offset;
1869
1870 return bfd_reloc_ok;
1871 }
1872
1873 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1874 generated when addresses are 64 bits. The upper 32 bits are a simple
1875 sign extension. */
1876
1877 static bfd_reloc_status_type
1878 mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry,
1879 asymbol *symbol ATTRIBUTE_UNUSED,
1880 void *data, asection *input_section,
1881 bfd *output_bfd, char **error_message)
1882 {
1883 bfd_reloc_status_type r;
1884 arelent reloc32;
1885 unsigned long val;
1886 bfd_size_type addr;
1887
1888 /* Do a normal 32 bit relocation on the lower 32 bits. */
1889 reloc32 = *reloc_entry;
1890 if (bfd_big_endian (abfd))
1891 reloc32.address += 4;
1892 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
1893 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
1894 output_bfd, error_message);
1895
1896 /* Sign extend into the upper 32 bits. */
1897 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
1898 if ((val & 0x80000000) != 0)
1899 val = 0xffffffff;
1900 else
1901 val = 0;
1902 addr = reloc_entry->address;
1903 if (bfd_little_endian (abfd))
1904 addr += 4;
1905 bfd_put_32 (abfd, val, (bfd_byte *) data + addr);
1906
1907 return r;
1908 }
1909
1910 /* Handle a mips16 GP relative reloc. */
1911
1912 static bfd_reloc_status_type
1913 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1914 void *data, asection *input_section, bfd *output_bfd,
1915 char **error_message)
1916 {
1917 bfd_boolean relocatable;
1918 bfd_reloc_status_type ret;
1919 bfd_byte *location;
1920 bfd_vma gp;
1921
1922 /* If we're relocating, and this is an external symbol, we don't want
1923 to change anything. */
1924 if (output_bfd != NULL
1925 && (symbol->flags & BSF_SECTION_SYM) == 0
1926 && (symbol->flags & BSF_LOCAL) != 0)
1927 {
1928 reloc_entry->address += input_section->output_offset;
1929 return bfd_reloc_ok;
1930 }
1931
1932 if (output_bfd != NULL)
1933 relocatable = TRUE;
1934 else
1935 {
1936 relocatable = FALSE;
1937 output_bfd = symbol->section->output_section->owner;
1938 }
1939
1940 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1941 &gp);
1942 if (ret != bfd_reloc_ok)
1943 return ret;
1944
1945 location = (bfd_byte *) data + reloc_entry->address;
1946 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1947 location);
1948 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1949 input_section, relocatable,
1950 data, gp);
1951 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1952 location);
1953
1954 return ret;
1955 }
1956
1957 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
1958
1959 struct elf_reloc_map {
1960 bfd_reloc_code_real_type bfd_val;
1961 enum elf_mips_reloc_type elf_val;
1962 };
1963
1964 static const struct elf_reloc_map mips_reloc_map[] =
1965 {
1966 { BFD_RELOC_NONE, R_MIPS_NONE },
1967 { BFD_RELOC_16, R_MIPS_16 },
1968 { BFD_RELOC_32, R_MIPS_32 },
1969 /* There is no BFD reloc for R_MIPS_REL32. */
1970 { BFD_RELOC_64, R_MIPS_64 },
1971 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
1972 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
1973 { BFD_RELOC_LO16, R_MIPS_LO16 },
1974 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
1975 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
1976 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
1977 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
1978 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
1979 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
1980 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
1981 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
1982 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
1983 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
1984 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
1985 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
1986 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
1987 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
1988 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
1989 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
1990 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
1991 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
1992 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
1993 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
1994 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
1995 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
1996 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
1997 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
1998 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
1999 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
2000 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
2001 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 },
2002 { BFD_RELOC_MIPS_21_PCREL_S2, R_MIPS_PC21_S2 },
2003 { BFD_RELOC_MIPS_26_PCREL_S2, R_MIPS_PC26_S2 },
2004 { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 },
2005 { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 },
2006 { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 },
2007 { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 }
2008 };
2009
2010 static const struct elf_reloc_map mips16_reloc_map[] =
2011 {
2012 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
2013 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
2014 { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min },
2015 { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min },
2016 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
2017 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
2018 { BFD_RELOC_MIPS16_TLS_GD, R_MIPS16_TLS_GD - R_MIPS16_min },
2019 { BFD_RELOC_MIPS16_TLS_LDM, R_MIPS16_TLS_LDM - R_MIPS16_min },
2020 { BFD_RELOC_MIPS16_TLS_DTPREL_HI16,
2021 R_MIPS16_TLS_DTPREL_HI16 - R_MIPS16_min },
2022 { BFD_RELOC_MIPS16_TLS_DTPREL_LO16,
2023 R_MIPS16_TLS_DTPREL_LO16 - R_MIPS16_min },
2024 { BFD_RELOC_MIPS16_TLS_GOTTPREL, R_MIPS16_TLS_GOTTPREL - R_MIPS16_min },
2025 { BFD_RELOC_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_HI16 - R_MIPS16_min },
2026 { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min }
2027 };
2028
2029 static const struct elf_reloc_map micromips_reloc_map[] =
2030 {
2031 { BFD_RELOC_MICROMIPS_JMP, R_MICROMIPS_26_S1 - R_MICROMIPS_min },
2032 { BFD_RELOC_MICROMIPS_HI16_S, R_MICROMIPS_HI16 - R_MICROMIPS_min },
2033 { BFD_RELOC_MICROMIPS_LO16, R_MICROMIPS_LO16 - R_MICROMIPS_min },
2034 { BFD_RELOC_MICROMIPS_GPREL16, R_MICROMIPS_GPREL16 - R_MICROMIPS_min },
2035 { BFD_RELOC_MICROMIPS_LITERAL, R_MICROMIPS_LITERAL - R_MICROMIPS_min },
2036 { BFD_RELOC_MICROMIPS_GOT16, R_MICROMIPS_GOT16 - R_MICROMIPS_min },
2037 { BFD_RELOC_MICROMIPS_7_PCREL_S1, R_MICROMIPS_PC7_S1 - R_MICROMIPS_min },
2038 { BFD_RELOC_MICROMIPS_10_PCREL_S1, R_MICROMIPS_PC10_S1 - R_MICROMIPS_min },
2039 { BFD_RELOC_MICROMIPS_16_PCREL_S1, R_MICROMIPS_PC16_S1 - R_MICROMIPS_min },
2040 { BFD_RELOC_MICROMIPS_CALL16, R_MICROMIPS_CALL16 - R_MICROMIPS_min },
2041 { BFD_RELOC_MICROMIPS_GOT_DISP, R_MICROMIPS_GOT_DISP - R_MICROMIPS_min },
2042 { BFD_RELOC_MICROMIPS_GOT_PAGE, R_MICROMIPS_GOT_PAGE - R_MICROMIPS_min },
2043 { BFD_RELOC_MICROMIPS_GOT_OFST, R_MICROMIPS_GOT_OFST - R_MICROMIPS_min },
2044 { BFD_RELOC_MICROMIPS_GOT_HI16, R_MICROMIPS_GOT_HI16 - R_MICROMIPS_min },
2045 { BFD_RELOC_MICROMIPS_GOT_LO16, R_MICROMIPS_GOT_LO16 - R_MICROMIPS_min },
2046 { BFD_RELOC_MICROMIPS_SUB, R_MICROMIPS_SUB - R_MICROMIPS_min },
2047 { BFD_RELOC_MICROMIPS_HIGHER, R_MICROMIPS_HIGHER - R_MICROMIPS_min },
2048 { BFD_RELOC_MICROMIPS_HIGHEST, R_MICROMIPS_HIGHEST - R_MICROMIPS_min },
2049 { BFD_RELOC_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_HI16 - R_MICROMIPS_min },
2050 { BFD_RELOC_MICROMIPS_CALL_LO16, R_MICROMIPS_CALL_LO16 - R_MICROMIPS_min },
2051 { BFD_RELOC_MICROMIPS_SCN_DISP, R_MICROMIPS_SCN_DISP - R_MICROMIPS_min },
2052 { BFD_RELOC_MICROMIPS_JALR, R_MICROMIPS_JALR - R_MICROMIPS_min },
2053 /* There is no BFD reloc for R_MICROMIPS_HI0_LO16. */
2054 { BFD_RELOC_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_GD - R_MICROMIPS_min },
2055 { BFD_RELOC_MICROMIPS_TLS_LDM, R_MICROMIPS_TLS_LDM - R_MICROMIPS_min },
2056 { BFD_RELOC_MICROMIPS_TLS_DTPREL_HI16,
2057 R_MICROMIPS_TLS_DTPREL_HI16 - R_MICROMIPS_min },
2058 { BFD_RELOC_MICROMIPS_TLS_DTPREL_LO16,
2059 R_MICROMIPS_TLS_DTPREL_LO16 - R_MICROMIPS_min },
2060 { BFD_RELOC_MICROMIPS_TLS_GOTTPREL,
2061 R_MICROMIPS_TLS_GOTTPREL - R_MICROMIPS_min },
2062 { BFD_RELOC_MICROMIPS_TLS_TPREL_HI16,
2063 R_MICROMIPS_TLS_TPREL_HI16 - R_MICROMIPS_min },
2064 { BFD_RELOC_MICROMIPS_TLS_TPREL_LO16,
2065 R_MICROMIPS_TLS_TPREL_LO16 - R_MICROMIPS_min },
2066 /* There is no BFD reloc for R_MICROMIPS_GPREL7_S2. */
2067 /* There is no BFD reloc for R_MICROMIPS_PC23_S2. */
2068 };
2069
2070 /* Given a BFD reloc type, return a howto structure. */
2071
2072 static reloc_howto_type *
2073 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
2074 {
2075 unsigned int i;
2076 reloc_howto_type *howto_table = elf_mips_howto_table_rel;
2077 reloc_howto_type *howto16_table = elf_mips16_howto_table_rel;
2078 reloc_howto_type *howto_micromips_table = elf_micromips_howto_table_rel;
2079
2080 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
2081 i++)
2082 {
2083 if (mips_reloc_map[i].bfd_val == code)
2084 return &howto_table[(int) mips_reloc_map[i].elf_val];
2085 }
2086
2087 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
2088 i++)
2089 {
2090 if (mips16_reloc_map[i].bfd_val == code)
2091 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
2092 }
2093
2094 for (i = 0; i < sizeof (micromips_reloc_map) / sizeof (struct elf_reloc_map);
2095 i++)
2096 {
2097 if (micromips_reloc_map[i].bfd_val == code)
2098 return &howto_micromips_table[(int) micromips_reloc_map[i].elf_val];
2099 }
2100
2101 switch (code)
2102 {
2103 default:
2104 bfd_set_error (bfd_error_bad_value);
2105 return NULL;
2106
2107 case BFD_RELOC_CTOR:
2108 /* We need to handle BFD_RELOC_CTOR specially.
2109 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2110 size of addresses of the ABI. */
2111 if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64
2112 | E_MIPS_ABI_EABI64)) != 0)
2113 return &elf_mips_ctor64_howto;
2114 else
2115 return &howto_table[(int) R_MIPS_32];
2116
2117 case BFD_RELOC_VTABLE_INHERIT:
2118 return &elf_mips_gnu_vtinherit_howto;
2119 case BFD_RELOC_VTABLE_ENTRY:
2120 return &elf_mips_gnu_vtentry_howto;
2121 case BFD_RELOC_32_PCREL:
2122 return &elf_mips_gnu_pcrel32;
2123 case BFD_RELOC_MIPS_COPY:
2124 return &elf_mips_copy_howto;
2125 case BFD_RELOC_MIPS_JUMP_SLOT:
2126 return &elf_mips_jump_slot_howto;
2127 case BFD_RELOC_MIPS_EH:
2128 return &elf_mips_eh_howto;
2129 }
2130 }
2131
2132 static reloc_howto_type *
2133 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2134 const char *r_name)
2135 {
2136 unsigned int i;
2137
2138 for (i = 0;
2139 i < (sizeof (elf_mips_howto_table_rel)
2140 / sizeof (elf_mips_howto_table_rel[0]));
2141 i++)
2142 if (elf_mips_howto_table_rel[i].name != NULL
2143 && strcasecmp (elf_mips_howto_table_rel[i].name, r_name) == 0)
2144 return &elf_mips_howto_table_rel[i];
2145
2146 for (i = 0;
2147 i < (sizeof (elf_mips16_howto_table_rel)
2148 / sizeof (elf_mips16_howto_table_rel[0]));
2149 i++)
2150 if (elf_mips16_howto_table_rel[i].name != NULL
2151 && strcasecmp (elf_mips16_howto_table_rel[i].name, r_name) == 0)
2152 return &elf_mips16_howto_table_rel[i];
2153
2154 for (i = 0;
2155 i < (sizeof (elf_micromips_howto_table_rel)
2156 / sizeof (elf_micromips_howto_table_rel[0]));
2157 i++)
2158 if (elf_micromips_howto_table_rel[i].name != NULL
2159 && strcasecmp (elf_micromips_howto_table_rel[i].name, r_name) == 0)
2160 return &elf_micromips_howto_table_rel[i];
2161
2162 if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0)
2163 return &elf_mips_gnu_pcrel32;
2164 if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
2165 return &elf_mips_gnu_rel16_s2;
2166 if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
2167 return &elf_mips_gnu_vtinherit_howto;
2168 if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
2169 return &elf_mips_gnu_vtentry_howto;
2170 if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0)
2171 return &elf_mips_copy_howto;
2172 if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
2173 return &elf_mips_jump_slot_howto;
2174 if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0)
2175 return &elf_mips_eh_howto;
2176
2177 return NULL;
2178 }
2179
2180 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2181
2182 static reloc_howto_type *
2183 mips_elf32_rtype_to_howto (unsigned int r_type,
2184 bfd_boolean rela_p ATTRIBUTE_UNUSED)
2185 {
2186 switch (r_type)
2187 {
2188 case R_MIPS_GNU_VTINHERIT:
2189 return &elf_mips_gnu_vtinherit_howto;
2190 case R_MIPS_GNU_VTENTRY:
2191 return &elf_mips_gnu_vtentry_howto;
2192 case R_MIPS_GNU_REL16_S2:
2193 return &elf_mips_gnu_rel16_s2;
2194 case R_MIPS_PC32:
2195 return &elf_mips_gnu_pcrel32;
2196 case R_MIPS_COPY:
2197 return &elf_mips_copy_howto;
2198 case R_MIPS_JUMP_SLOT:
2199 return &elf_mips_jump_slot_howto;
2200 case R_MIPS_EH:
2201 return &elf_mips_eh_howto;
2202 default:
2203 if (r_type >= R_MICROMIPS_min && r_type < R_MICROMIPS_max)
2204 return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min];
2205 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
2206 return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
2207 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2208 return &elf_mips_howto_table_rel[r_type];
2209 }
2210 }
2211
2212 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2213
2214 static void
2215 mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2216 {
2217 const struct elf_backend_data *bed;
2218 unsigned int r_type;
2219
2220 r_type = ELF32_R_TYPE (dst->r_info);
2221 bed = get_elf_backend_data (abfd);
2222 cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE);
2223
2224 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2225 value for the object file. We get the addend now, rather than
2226 when we do the relocation, because the symbol manipulations done
2227 by the linker may cause us to lose track of the input BFD. */
2228 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
2229 && (gprel16_reloc_p (r_type) || literal_reloc_p (r_type)))
2230 cache_ptr->addend = elf_gp (abfd);
2231 }
2232
2233 /* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */
2234
2235 static void
2236 mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2237 {
2238 mips_info_to_howto_rel (abfd, cache_ptr, dst);
2239
2240 /* If we ever need to do any extra processing with dst->r_addend
2241 (the field omitted in an Elf_Internal_Rel) we can do it here. */
2242 }
2243 \f
2244 /* Determine whether a symbol is global for the purposes of splitting
2245 the symbol table into global symbols and local symbols. At least
2246 on Irix 5, this split must be between section symbols and all other
2247 symbols. On most ELF targets the split is between static symbols
2248 and externally visible symbols. */
2249
2250 static bfd_boolean
2251 mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym)
2252 {
2253 if (SGI_COMPAT (abfd))
2254 return (sym->flags & BSF_SECTION_SYM) == 0;
2255 else
2256 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0
2257 || bfd_is_und_section (bfd_get_section (sym))
2258 || bfd_is_com_section (bfd_get_section (sym)));
2259 }
2260 \f
2261 /* Set the right machine number for a MIPS ELF file. */
2262
2263 static bfd_boolean
2264 mips_elf32_object_p (bfd *abfd)
2265 {
2266 unsigned long mach;
2267
2268 if (ABI_N32_P (abfd))
2269 return FALSE;
2270
2271 /* Irix 5 and 6 are broken. Object file symbol tables are not always
2272 sorted correctly such that local symbols precede global symbols,
2273 and the sh_info field in the symbol table is not always right. */
2274 if (SGI_COMPAT (abfd))
2275 elf_bad_symtab (abfd) = TRUE;
2276
2277 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
2278 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
2279 return TRUE;
2280 }
2281 \f
2282 /* MIPS ELF local labels start with '$', not 'L'. */
2283
2284 static bfd_boolean
2285 mips_elf_is_local_label_name (bfd *abfd, const char *name)
2286 {
2287 if (name[0] == '$')
2288 return TRUE;
2289
2290 /* On Irix 6, the labels go back to starting with '.', so we accept
2291 the generic ELF local label syntax as well. */
2292 return _bfd_elf_is_local_label_name (abfd, name);
2293 }
2294 \f
2295 /* Support for core dump NOTE sections. */
2296 static bfd_boolean
2297 elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2298 {
2299 int offset;
2300 unsigned int size;
2301
2302 switch (note->descsz)
2303 {
2304 default:
2305 return FALSE;
2306
2307 case 256: /* Linux/MIPS */
2308 /* pr_cursig */
2309 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2310
2311 /* pr_pid */
2312 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2313
2314 /* pr_reg */
2315 offset = 72;
2316 size = 180;
2317
2318 break;
2319 }
2320
2321 /* Make a ".reg/999" section. */
2322 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2323 size, note->descpos + offset);
2324 }
2325
2326 static bfd_boolean
2327 elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2328 {
2329 switch (note->descsz)
2330 {
2331 default:
2332 return FALSE;
2333
2334 case 128: /* Linux/MIPS elf_prpsinfo */
2335 elf_tdata (abfd)->core->program
2336 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2337 elf_tdata (abfd)->core->command
2338 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2339 }
2340
2341 /* Note that for some reason, a spurious space is tacked
2342 onto the end of the args in some (at least one anyway)
2343 implementations, so strip it off if it exists. */
2344
2345 {
2346 char *command = elf_tdata (abfd)->core->command;
2347 int n = strlen (command);
2348
2349 if (0 < n && command[n - 1] == ' ')
2350 command[n - 1] = '\0';
2351 }
2352
2353 return TRUE;
2354 }
2355 \f
2356 /* Depending on the target vector we generate some version of Irix
2357 executables or "normal" MIPS ELF ABI executables. */
2358 static irix_compat_t
2359 elf32_mips_irix_compat (bfd *abfd)
2360 {
2361 if ((abfd->xvec == &mips_elf32_be_vec)
2362 || (abfd->xvec == &mips_elf32_le_vec))
2363 return ict_irix5;
2364 else
2365 return ict_none;
2366 }
2367 \f
2368 /* ECOFF swapping routines. These are used when dealing with the
2369 .mdebug section, which is in the ECOFF debugging format. */
2370 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
2371 /* Symbol table magic number. */
2372 magicSym,
2373 /* Alignment of debugging information. E.g., 4. */
2374 4,
2375 /* Sizes of external symbolic information. */
2376 sizeof (struct hdr_ext),
2377 sizeof (struct dnr_ext),
2378 sizeof (struct pdr_ext),
2379 sizeof (struct sym_ext),
2380 sizeof (struct opt_ext),
2381 sizeof (struct fdr_ext),
2382 sizeof (struct rfd_ext),
2383 sizeof (struct ext_ext),
2384 /* Functions to swap in external symbolic data. */
2385 ecoff_swap_hdr_in,
2386 ecoff_swap_dnr_in,
2387 ecoff_swap_pdr_in,
2388 ecoff_swap_sym_in,
2389 ecoff_swap_opt_in,
2390 ecoff_swap_fdr_in,
2391 ecoff_swap_rfd_in,
2392 ecoff_swap_ext_in,
2393 _bfd_ecoff_swap_tir_in,
2394 _bfd_ecoff_swap_rndx_in,
2395 /* Functions to swap out external symbolic data. */
2396 ecoff_swap_hdr_out,
2397 ecoff_swap_dnr_out,
2398 ecoff_swap_pdr_out,
2399 ecoff_swap_sym_out,
2400 ecoff_swap_opt_out,
2401 ecoff_swap_fdr_out,
2402 ecoff_swap_rfd_out,
2403 ecoff_swap_ext_out,
2404 _bfd_ecoff_swap_tir_out,
2405 _bfd_ecoff_swap_rndx_out,
2406 /* Function to read in symbolic data. */
2407 _bfd_mips_elf_read_ecoff_info
2408 };
2409 \f
2410 #define ELF_ARCH bfd_arch_mips
2411 #define ELF_TARGET_ID MIPS_ELF_DATA
2412 #define ELF_MACHINE_CODE EM_MIPS
2413
2414 #define elf_backend_collect TRUE
2415 #define elf_backend_type_change_ok TRUE
2416 #define elf_backend_can_gc_sections TRUE
2417 #define elf_backend_gc_mark_extra_sections \
2418 _bfd_mips_elf_gc_mark_extra_sections
2419 #define elf_info_to_howto mips_info_to_howto_rela
2420 #define elf_info_to_howto_rel mips_info_to_howto_rel
2421 #define elf_backend_sym_is_global mips_elf_sym_is_global
2422 #define elf_backend_object_p mips_elf32_object_p
2423 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
2424 #define elf_backend_section_processing _bfd_mips_elf_section_processing
2425 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
2426 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
2427 #define elf_backend_section_from_bfd_section \
2428 _bfd_mips_elf_section_from_bfd_section
2429 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
2430 #define elf_backend_link_output_symbol_hook \
2431 _bfd_mips_elf_link_output_symbol_hook
2432 #define elf_backend_create_dynamic_sections \
2433 _bfd_mips_elf_create_dynamic_sections
2434 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
2435 #define elf_backend_merge_symbol_attribute \
2436 _bfd_mips_elf_merge_symbol_attribute
2437 #define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
2438 #define elf_backend_adjust_dynamic_symbol \
2439 _bfd_mips_elf_adjust_dynamic_symbol
2440 #define elf_backend_always_size_sections \
2441 _bfd_mips_elf_always_size_sections
2442 #define elf_backend_size_dynamic_sections \
2443 _bfd_mips_elf_size_dynamic_sections
2444 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
2445 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
2446 #define elf_backend_finish_dynamic_symbol \
2447 _bfd_mips_elf_finish_dynamic_symbol
2448 #define elf_backend_finish_dynamic_sections \
2449 _bfd_mips_elf_finish_dynamic_sections
2450 #define elf_backend_final_write_processing \
2451 _bfd_mips_elf_final_write_processing
2452 #define elf_backend_additional_program_headers \
2453 _bfd_mips_elf_additional_program_headers
2454 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
2455 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
2456 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
2457 #define elf_backend_copy_indirect_symbol \
2458 _bfd_mips_elf_copy_indirect_symbol
2459 #define elf_backend_grok_prstatus elf32_mips_grok_prstatus
2460 #define elf_backend_grok_psinfo elf32_mips_grok_psinfo
2461 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
2462
2463 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
2464 #define elf_backend_may_use_rel_p 1
2465 #define elf_backend_may_use_rela_p 0
2466 #define elf_backend_default_use_rela_p 0
2467 #define elf_backend_sign_extend_vma TRUE
2468 #define elf_backend_plt_readonly 1
2469
2470 #define elf_backend_discard_info _bfd_mips_elf_discard_info
2471 #define elf_backend_ignore_discarded_relocs \
2472 _bfd_mips_elf_ignore_discarded_relocs
2473 #define elf_backend_write_section _bfd_mips_elf_write_section
2474 #define elf_backend_mips_irix_compat elf32_mips_irix_compat
2475 #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
2476 #define bfd_elf32_bfd_is_local_label_name \
2477 mips_elf_is_local_label_name
2478 #define bfd_elf32_bfd_is_target_special_symbol \
2479 _bfd_mips_elf_is_target_special_symbol
2480 #define bfd_elf32_get_synthetic_symtab _bfd_mips_elf_get_synthetic_symtab
2481 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
2482 #define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
2483 #define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
2484 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
2485 #define bfd_elf32_bfd_get_relocated_section_contents \
2486 _bfd_elf_mips_get_relocated_section_contents
2487 #define bfd_elf32_bfd_link_hash_table_create \
2488 _bfd_mips_elf_link_hash_table_create
2489 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
2490 #define bfd_elf32_bfd_merge_private_bfd_data \
2491 _bfd_mips_elf_merge_private_bfd_data
2492 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
2493 #define bfd_elf32_bfd_print_private_bfd_data \
2494 _bfd_mips_elf_print_private_bfd_data
2495 #define bfd_elf32_bfd_relax_section _bfd_mips_elf_relax_section
2496 #define bfd_elf32_mkobject _bfd_mips_elf_mkobject
2497
2498 /* Support for SGI-ish mips targets. */
2499 #define TARGET_LITTLE_SYM mips_elf32_le_vec
2500 #define TARGET_LITTLE_NAME "elf32-littlemips"
2501 #define TARGET_BIG_SYM mips_elf32_be_vec
2502 #define TARGET_BIG_NAME "elf32-bigmips"
2503
2504 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
2505 a value of 0x1000, and we are compatible. */
2506 #define ELF_MAXPAGESIZE 0x1000
2507 #define ELF_COMMONPAGESIZE 0x1000
2508
2509 #include "elf32-target.h"
2510
2511 /* Support for traditional mips targets. */
2512 #undef TARGET_LITTLE_SYM
2513 #undef TARGET_LITTLE_NAME
2514 #undef TARGET_BIG_SYM
2515 #undef TARGET_BIG_NAME
2516
2517 #undef ELF_MAXPAGESIZE
2518 #undef ELF_COMMONPAGESIZE
2519
2520 #define TARGET_LITTLE_SYM mips_elf32_trad_le_vec
2521 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
2522 #define TARGET_BIG_SYM mips_elf32_trad_be_vec
2523 #define TARGET_BIG_NAME "elf32-tradbigmips"
2524
2525 /* The MIPS ABI says at Page 5-1:
2526 Virtual addresses and file offsets for MIPS segments are congruent
2527 modulo 64 KByte (0x10000) or larger powers of 2. Because 64 KBytes
2528 is the maximum page size, the files are suitable for paging
2529 regardless of physical page size. */
2530 #define ELF_MAXPAGESIZE 0x10000
2531 #define ELF_COMMONPAGESIZE 0x1000
2532 #define elf32_bed elf32_tradbed
2533
2534 /* Include the target file again for this target. */
2535 #include "elf32-target.h"
2536
2537 /* FreeBSD support. */
2538
2539 #undef TARGET_LITTLE_SYM
2540 #undef TARGET_LITTLE_NAME
2541 #undef TARGET_BIG_SYM
2542 #undef TARGET_BIG_NAME
2543
2544 #define TARGET_LITTLE_SYM mips_elf32_tradfbsd_le_vec
2545 #define TARGET_LITTLE_NAME "elf32-tradlittlemips-freebsd"
2546 #define TARGET_BIG_SYM mips_elf32_tradfbsd_be_vec
2547 #define TARGET_BIG_NAME "elf32-tradbigmips-freebsd"
2548
2549 #undef ELF_OSABI
2550 #define ELF_OSABI ELFOSABI_FREEBSD
2551
2552 #undef elf32_bed
2553 #define elf32_bed elf32_fbsd_tradbed
2554
2555 #include "elf32-target.h"
2556 /* Implement elf_backend_final_write_processing for VxWorks. */
2557
2558 static void
2559 mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
2560 {
2561 _bfd_mips_elf_final_write_processing (abfd, linker);
2562 elf_vxworks_final_write_processing (abfd, linker);
2563 }
2564
2565 #undef TARGET_LITTLE_SYM
2566 #undef TARGET_LITTLE_NAME
2567 #undef TARGET_BIG_SYM
2568 #undef TARGET_BIG_NAME
2569
2570 #undef ELF_MAXPAGESIZE
2571 #undef ELF_COMMONPAGESIZE
2572
2573 #define TARGET_LITTLE_SYM mips_elf32_vxworks_le_vec
2574 #define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
2575 #define TARGET_BIG_SYM mips_elf32_vxworks_be_vec
2576 #define TARGET_BIG_NAME "elf32-bigmips-vxworks"
2577 #undef ELF_OSABI
2578
2579 #undef elf32_bed
2580 #define elf32_bed elf32_mips_vxworks_bed
2581
2582 #define ELF_MAXPAGESIZE 0x1000
2583 #define ELF_COMMONPAGESIZE 0x1000
2584
2585 #undef elf_backend_want_got_plt
2586 #define elf_backend_want_got_plt 1
2587 #undef elf_backend_want_plt_sym
2588 #define elf_backend_want_plt_sym 1
2589 #undef elf_backend_may_use_rel_p
2590 #define elf_backend_may_use_rel_p 0
2591 #undef elf_backend_may_use_rela_p
2592 #define elf_backend_may_use_rela_p 1
2593 #undef elf_backend_default_use_rela_p
2594 #define elf_backend_default_use_rela_p 1
2595 #undef elf_backend_got_header_size
2596 #define elf_backend_got_header_size (4 * 3)
2597
2598 #undef elf_backend_finish_dynamic_symbol
2599 #define elf_backend_finish_dynamic_symbol \
2600 _bfd_mips_vxworks_finish_dynamic_symbol
2601 #undef bfd_elf32_bfd_link_hash_table_create
2602 #define bfd_elf32_bfd_link_hash_table_create \
2603 _bfd_mips_vxworks_link_hash_table_create
2604 #undef elf_backend_add_symbol_hook
2605 #define elf_backend_add_symbol_hook \
2606 elf_vxworks_add_symbol_hook
2607 #undef elf_backend_link_output_symbol_hook
2608 #define elf_backend_link_output_symbol_hook \
2609 elf_vxworks_link_output_symbol_hook
2610 #undef elf_backend_emit_relocs
2611 #define elf_backend_emit_relocs \
2612 elf_vxworks_emit_relocs
2613 #undef elf_backend_final_write_processing
2614 #define elf_backend_final_write_processing \
2615 mips_vxworks_final_write_processing
2616
2617 #undef elf_backend_additional_program_headers
2618 #undef elf_backend_modify_segment_map
2619 #undef elf_backend_symbol_processing
2620 /* NOTE: elf_backend_rela_normal is not defined for MIPS. */
2621
2622 #undef bfd_elf32_get_synthetic_symtab
2623
2624 #include "elf32-target.h"
The GNU Binutils are a collection of binary tools.