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[MIPS] Implement O32 FPXX, FP64 and FP64A ABI extensions
[thirdparty/binutils-gdb.git] / bfd / elf32-mips.c
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
721 /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
722 is a hack to make the linker think that we need 64 bit values. */
723 static reloc_howto_type elf_mips_ctor64_howto =
724 HOWTO (R_MIPS_64, /* type */
725 0, /* rightshift */
726 4, /* size (0 = byte, 1 = short, 2 = long) */
727 32, /* bitsize */
728 FALSE, /* pc_relative */
729 0, /* bitpos */
730 complain_overflow_signed, /* complain_on_overflow */
731 mips32_64bit_reloc, /* special_function */
732 "R_MIPS_64", /* name */
733 TRUE, /* partial_inplace */
734 0xffffffff, /* src_mask */
735 0xffffffff, /* dst_mask */
736 FALSE); /* pcrel_offset */
737
738 static reloc_howto_type elf_mips16_howto_table_rel[] =
739 {
740 /* The reloc used for the mips16 jump instruction. */
741 HOWTO (R_MIPS16_26, /* type */
742 2, /* rightshift */
743 2, /* size (0 = byte, 1 = short, 2 = long) */
744 26, /* bitsize */
745 FALSE, /* pc_relative */
746 0, /* bitpos */
747 complain_overflow_dont, /* complain_on_overflow */
748 /* This needs complex overflow
749 detection, because the upper four
750 bits must match the PC. */
751 _bfd_mips_elf_generic_reloc, /* special_function */
752 "R_MIPS16_26", /* name */
753 TRUE, /* partial_inplace */
754 0x3ffffff, /* src_mask */
755 0x3ffffff, /* dst_mask */
756 FALSE), /* pcrel_offset */
757
758 /* The reloc used for the mips16 gprel instruction. */
759 HOWTO (R_MIPS16_GPREL, /* type */
760 0, /* rightshift */
761 2, /* size (0 = byte, 1 = short, 2 = long) */
762 16, /* bitsize */
763 FALSE, /* pc_relative */
764 0, /* bitpos */
765 complain_overflow_signed, /* complain_on_overflow */
766 mips16_gprel_reloc, /* special_function */
767 "R_MIPS16_GPREL", /* name */
768 TRUE, /* partial_inplace */
769 0x0000ffff, /* src_mask */
770 0x0000ffff, /* dst_mask */
771 FALSE), /* pcrel_offset */
772
773 /* A MIPS16 reference to the global offset table. */
774 HOWTO (R_MIPS16_GOT16, /* type */
775 0, /* rightshift */
776 2, /* size (0 = byte, 1 = short, 2 = long) */
777 16, /* bitsize */
778 FALSE, /* pc_relative */
779 0, /* bitpos */
780 complain_overflow_dont, /* complain_on_overflow */
781 _bfd_mips_elf_got16_reloc, /* special_function */
782 "R_MIPS16_GOT16", /* name */
783 TRUE, /* partial_inplace */
784 0x0000ffff, /* src_mask */
785 0x0000ffff, /* dst_mask */
786 FALSE), /* pcrel_offset */
787
788 /* A MIPS16 call through the global offset table. */
789 HOWTO (R_MIPS16_CALL16, /* type */
790 0, /* rightshift */
791 2, /* size (0 = byte, 1 = short, 2 = long) */
792 16, /* bitsize */
793 FALSE, /* pc_relative */
794 0, /* bitpos */
795 complain_overflow_dont, /* complain_on_overflow */
796 _bfd_mips_elf_generic_reloc, /* special_function */
797 "R_MIPS16_CALL16", /* name */
798 TRUE, /* partial_inplace */
799 0x0000ffff, /* src_mask */
800 0x0000ffff, /* dst_mask */
801 FALSE), /* pcrel_offset */
802
803 /* MIPS16 high 16 bits of symbol value. */
804 HOWTO (R_MIPS16_HI16, /* type */
805 16, /* rightshift */
806 2, /* size (0 = byte, 1 = short, 2 = long) */
807 16, /* bitsize */
808 FALSE, /* pc_relative */
809 0, /* bitpos */
810 complain_overflow_dont, /* complain_on_overflow */
811 _bfd_mips_elf_hi16_reloc, /* special_function */
812 "R_MIPS16_HI16", /* name */
813 TRUE, /* partial_inplace */
814 0x0000ffff, /* src_mask */
815 0x0000ffff, /* dst_mask */
816 FALSE), /* pcrel_offset */
817
818 /* MIPS16 low 16 bits of symbol value. */
819 HOWTO (R_MIPS16_LO16, /* type */
820 0, /* rightshift */
821 2, /* size (0 = byte, 1 = short, 2 = long) */
822 16, /* bitsize */
823 FALSE, /* pc_relative */
824 0, /* bitpos */
825 complain_overflow_dont, /* complain_on_overflow */
826 _bfd_mips_elf_lo16_reloc, /* special_function */
827 "R_MIPS16_LO16", /* name */
828 TRUE, /* partial_inplace */
829 0x0000ffff, /* src_mask */
830 0x0000ffff, /* dst_mask */
831 FALSE), /* pcrel_offset */
832
833 /* MIPS16 TLS general dynamic variable reference. */
834 HOWTO (R_MIPS16_TLS_GD, /* type */
835 0, /* rightshift */
836 2, /* size (0 = byte, 1 = short, 2 = long) */
837 16, /* bitsize */
838 FALSE, /* pc_relative */
839 0, /* bitpos */
840 complain_overflow_signed, /* complain_on_overflow */
841 _bfd_mips_elf_generic_reloc, /* special_function */
842 "R_MIPS16_TLS_GD", /* name */
843 TRUE, /* partial_inplace */
844 0x0000ffff, /* src_mask */
845 0x0000ffff, /* dst_mask */
846 FALSE), /* pcrel_offset */
847
848 /* MIPS16 TLS local dynamic variable reference. */
849 HOWTO (R_MIPS16_TLS_LDM, /* type */
850 0, /* rightshift */
851 2, /* size (0 = byte, 1 = short, 2 = long) */
852 16, /* bitsize */
853 FALSE, /* pc_relative */
854 0, /* bitpos */
855 complain_overflow_signed, /* complain_on_overflow */
856 _bfd_mips_elf_generic_reloc, /* special_function */
857 "R_MIPS16_TLS_LDM", /* name */
858 TRUE, /* partial_inplace */
859 0x0000ffff, /* src_mask */
860 0x0000ffff, /* dst_mask */
861 FALSE), /* pcrel_offset */
862
863 /* MIPS16 TLS local dynamic offset. */
864 HOWTO (R_MIPS16_TLS_DTPREL_HI16, /* type */
865 0, /* rightshift */
866 2, /* size (0 = byte, 1 = short, 2 = long) */
867 16, /* bitsize */
868 FALSE, /* pc_relative */
869 0, /* bitpos */
870 complain_overflow_signed, /* complain_on_overflow */
871 _bfd_mips_elf_generic_reloc, /* special_function */
872 "R_MIPS16_TLS_DTPREL_HI16", /* name */
873 TRUE, /* partial_inplace */
874 0x0000ffff, /* src_mask */
875 0x0000ffff, /* dst_mask */
876 FALSE), /* pcrel_offset */
877
878 /* MIPS16 TLS local dynamic offset. */
879 HOWTO (R_MIPS16_TLS_DTPREL_LO16, /* type */
880 0, /* rightshift */
881 2, /* size (0 = byte, 1 = short, 2 = long) */
882 16, /* bitsize */
883 FALSE, /* pc_relative */
884 0, /* bitpos */
885 complain_overflow_signed, /* complain_on_overflow */
886 _bfd_mips_elf_generic_reloc, /* special_function */
887 "R_MIPS16_TLS_DTPREL_LO16", /* name */
888 TRUE, /* partial_inplace */
889 0x0000ffff, /* src_mask */
890 0x0000ffff, /* dst_mask */
891 FALSE), /* pcrel_offset */
892
893 /* MIPS16 TLS thread pointer offset. */
894 HOWTO (R_MIPS16_TLS_GOTTPREL, /* type */
895 0, /* rightshift */
896 2, /* size (0 = byte, 1 = short, 2 = long) */
897 16, /* bitsize */
898 FALSE, /* pc_relative */
899 0, /* bitpos */
900 complain_overflow_signed, /* complain_on_overflow */
901 _bfd_mips_elf_generic_reloc, /* special_function */
902 "R_MIPS16_TLS_GOTTPREL", /* name */
903 TRUE, /* partial_inplace */
904 0x0000ffff, /* src_mask */
905 0x0000ffff, /* dst_mask */
906 FALSE), /* pcrel_offset */
907
908 /* MIPS16 TLS thread pointer offset. */
909 HOWTO (R_MIPS16_TLS_TPREL_HI16, /* type */
910 0, /* rightshift */
911 2, /* size (0 = byte, 1 = short, 2 = long) */
912 16, /* bitsize */
913 FALSE, /* pc_relative */
914 0, /* bitpos */
915 complain_overflow_signed, /* complain_on_overflow */
916 _bfd_mips_elf_generic_reloc, /* special_function */
917 "R_MIPS16_TLS_TPREL_HI16", /* name */
918 TRUE, /* partial_inplace */
919 0x0000ffff, /* src_mask */
920 0x0000ffff, /* dst_mask */
921 FALSE), /* pcrel_offset */
922
923 /* MIPS16 TLS thread pointer offset. */
924 HOWTO (R_MIPS16_TLS_TPREL_LO16, /* type */
925 0, /* rightshift */
926 2, /* size (0 = byte, 1 = short, 2 = long) */
927 16, /* bitsize */
928 FALSE, /* pc_relative */
929 0, /* bitpos */
930 complain_overflow_signed, /* complain_on_overflow */
931 _bfd_mips_elf_generic_reloc, /* special_function */
932 "R_MIPS16_TLS_TPREL_LO16", /* name */
933 TRUE, /* partial_inplace */
934 0x0000ffff, /* src_mask */
935 0x0000ffff, /* dst_mask */
936 FALSE), /* pcrel_offset */
937 };
938
939 static reloc_howto_type elf_micromips_howto_table_rel[] =
940 {
941 EMPTY_HOWTO (130),
942 EMPTY_HOWTO (131),
943 EMPTY_HOWTO (132),
944
945 /* 26 bit jump address. */
946 HOWTO (R_MICROMIPS_26_S1, /* type */
947 1, /* rightshift */
948 2, /* size (0 = byte, 1 = short, 2 = long) */
949 26, /* bitsize */
950 FALSE, /* pc_relative */
951 0, /* bitpos */
952 complain_overflow_dont, /* complain_on_overflow */
953 /* This needs complex overflow
954 detection, because the upper four
955 bits must match the PC. */
956 _bfd_mips_elf_generic_reloc, /* special_function */
957 "R_MICROMIPS_26_S1", /* name */
958 TRUE, /* partial_inplace */
959 0x3ffffff, /* src_mask */
960 0x3ffffff, /* dst_mask */
961 FALSE), /* pcrel_offset */
962
963 /* High 16 bits of symbol value. */
964 HOWTO (R_MICROMIPS_HI16, /* type */
965 16, /* rightshift */
966 2, /* size (0 = byte, 1 = short, 2 = long) */
967 16, /* bitsize */
968 FALSE, /* pc_relative */
969 0, /* bitpos */
970 complain_overflow_dont, /* complain_on_overflow */
971 _bfd_mips_elf_hi16_reloc, /* special_function */
972 "R_MICROMIPS_HI16", /* name */
973 TRUE, /* partial_inplace */
974 0x0000ffff, /* src_mask */
975 0x0000ffff, /* dst_mask */
976 FALSE), /* pcrel_offset */
977
978 /* Low 16 bits of symbol value. */
979 HOWTO (R_MICROMIPS_LO16, /* type */
980 0, /* rightshift */
981 2, /* size (0 = byte, 1 = short, 2 = long) */
982 16, /* bitsize */
983 FALSE, /* pc_relative */
984 0, /* bitpos */
985 complain_overflow_dont, /* complain_on_overflow */
986 _bfd_mips_elf_lo16_reloc, /* special_function */
987 "R_MICROMIPS_LO16", /* name */
988 TRUE, /* partial_inplace */
989 0x0000ffff, /* src_mask */
990 0x0000ffff, /* dst_mask */
991 FALSE), /* pcrel_offset */
992
993 /* GP relative reference. */
994 HOWTO (R_MICROMIPS_GPREL16, /* type */
995 0, /* rightshift */
996 2, /* size (0 = byte, 1 = short, 2 = long) */
997 16, /* bitsize */
998 FALSE, /* pc_relative */
999 0, /* bitpos */
1000 complain_overflow_signed, /* complain_on_overflow */
1001 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1002 "R_MICROMIPS_GPREL16", /* name */
1003 TRUE, /* partial_inplace */
1004 0x0000ffff, /* src_mask */
1005 0x0000ffff, /* dst_mask */
1006 FALSE), /* pcrel_offset */
1007
1008 /* Reference to literal section. */
1009 HOWTO (R_MICROMIPS_LITERAL, /* type */
1010 0, /* rightshift */
1011 2, /* size (0 = byte, 1 = short, 2 = long) */
1012 16, /* bitsize */
1013 FALSE, /* pc_relative */
1014 0, /* bitpos */
1015 complain_overflow_signed, /* complain_on_overflow */
1016 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1017 "R_MICROMIPS_LITERAL", /* name */
1018 TRUE, /* partial_inplace */
1019 0x0000ffff, /* src_mask */
1020 0x0000ffff, /* dst_mask */
1021 FALSE), /* pcrel_offset */
1022
1023 /* Reference to global offset table. */
1024 HOWTO (R_MICROMIPS_GOT16, /* type */
1025 0, /* rightshift */
1026 2, /* size (0 = byte, 1 = short, 2 = long) */
1027 16, /* bitsize */
1028 FALSE, /* pc_relative */
1029 0, /* bitpos */
1030 complain_overflow_signed, /* complain_on_overflow */
1031 _bfd_mips_elf_got16_reloc, /* special_function */
1032 "R_MICROMIPS_GOT16", /* name */
1033 TRUE, /* partial_inplace */
1034 0x0000ffff, /* src_mask */
1035 0x0000ffff, /* dst_mask */
1036 FALSE), /* pcrel_offset */
1037
1038 /* This is for microMIPS branches. */
1039 HOWTO (R_MICROMIPS_PC7_S1, /* type */
1040 1, /* rightshift */
1041 1, /* size (0 = byte, 1 = short, 2 = long) */
1042 7, /* bitsize */
1043 TRUE, /* pc_relative */
1044 0, /* bitpos */
1045 complain_overflow_signed, /* complain_on_overflow */
1046 _bfd_mips_elf_generic_reloc, /* special_function */
1047 "R_MICROMIPS_PC7_S1", /* name */
1048 TRUE, /* partial_inplace */
1049 0x0000007f, /* src_mask */
1050 0x0000007f, /* dst_mask */
1051 TRUE), /* pcrel_offset */
1052
1053 HOWTO (R_MICROMIPS_PC10_S1, /* type */
1054 1, /* rightshift */
1055 1, /* size (0 = byte, 1 = short, 2 = long) */
1056 10, /* bitsize */
1057 TRUE, /* pc_relative */
1058 0, /* bitpos */
1059 complain_overflow_signed, /* complain_on_overflow */
1060 _bfd_mips_elf_generic_reloc, /* special_function */
1061 "R_MICROMIPS_PC10_S1", /* name */
1062 TRUE, /* partial_inplace */
1063 0x000003ff, /* src_mask */
1064 0x000003ff, /* dst_mask */
1065 TRUE), /* pcrel_offset */
1066
1067 HOWTO (R_MICROMIPS_PC16_S1, /* type */
1068 1, /* rightshift */
1069 2, /* size (0 = byte, 1 = short, 2 = long) */
1070 16, /* bitsize */
1071 TRUE, /* pc_relative */
1072 0, /* bitpos */
1073 complain_overflow_signed, /* complain_on_overflow */
1074 _bfd_mips_elf_generic_reloc, /* special_function */
1075 "R_MICROMIPS_PC16_S1", /* name */
1076 TRUE, /* partial_inplace */
1077 0x0000ffff, /* src_mask */
1078 0x0000ffff, /* dst_mask */
1079 TRUE), /* pcrel_offset */
1080
1081 /* 16 bit call through global offset table. */
1082 HOWTO (R_MICROMIPS_CALL16, /* type */
1083 0, /* rightshift */
1084 2, /* size (0 = byte, 1 = short, 2 = long) */
1085 16, /* bitsize */
1086 FALSE, /* pc_relative */
1087 0, /* bitpos */
1088 complain_overflow_signed, /* complain_on_overflow */
1089 _bfd_mips_elf_generic_reloc, /* special_function */
1090 "R_MICROMIPS_CALL16", /* name */
1091 TRUE, /* partial_inplace */
1092 0x0000ffff, /* src_mask */
1093 0x0000ffff, /* dst_mask */
1094 FALSE), /* pcrel_offset */
1095
1096 EMPTY_HOWTO (143),
1097 EMPTY_HOWTO (144),
1098
1099 /* Displacement in the global offset table. */
1100 HOWTO (R_MICROMIPS_GOT_DISP, /* type */
1101 0, /* rightshift */
1102 2, /* size (0 = byte, 1 = short, 2 = long) */
1103 16, /* bitsize */
1104 FALSE, /* pc_relative */
1105 0, /* bitpos */
1106 complain_overflow_signed, /* complain_on_overflow */
1107 _bfd_mips_elf_generic_reloc, /* special_function */
1108 "R_MICROMIPS_GOT_DISP",/* name */
1109 TRUE, /* partial_inplace */
1110 0x0000ffff, /* src_mask */
1111 0x0000ffff, /* dst_mask */
1112 FALSE), /* pcrel_offset */
1113
1114 /* Displacement to page pointer in the global offset table. */
1115 HOWTO (R_MICROMIPS_GOT_PAGE, /* type */
1116 0, /* rightshift */
1117 2, /* size (0 = byte, 1 = short, 2 = long) */
1118 16, /* bitsize */
1119 FALSE, /* pc_relative */
1120 0, /* bitpos */
1121 complain_overflow_signed, /* complain_on_overflow */
1122 _bfd_mips_elf_generic_reloc, /* special_function */
1123 "R_MICROMIPS_GOT_PAGE",/* name */
1124 TRUE, /* partial_inplace */
1125 0x0000ffff, /* src_mask */
1126 0x0000ffff, /* dst_mask */
1127 FALSE), /* pcrel_offset */
1128
1129 /* Offset from page pointer in the global offset table. */
1130 HOWTO (R_MICROMIPS_GOT_OFST, /* type */
1131 0, /* rightshift */
1132 2, /* size (0 = byte, 1 = short, 2 = long) */
1133 16, /* bitsize */
1134 FALSE, /* pc_relative */
1135 0, /* bitpos */
1136 complain_overflow_signed, /* complain_on_overflow */
1137 _bfd_mips_elf_generic_reloc, /* special_function */
1138 "R_MICROMIPS_GOT_OFST",/* name */
1139 TRUE, /* partial_inplace */
1140 0x0000ffff, /* src_mask */
1141 0x0000ffff, /* dst_mask */
1142 FALSE), /* pcrel_offset */
1143
1144 /* High 16 bits of displacement in global offset table. */
1145 HOWTO (R_MICROMIPS_GOT_HI16, /* type */
1146 0, /* rightshift */
1147 2, /* size (0 = byte, 1 = short, 2 = long) */
1148 16, /* bitsize */
1149 FALSE, /* pc_relative */
1150 0, /* bitpos */
1151 complain_overflow_dont, /* complain_on_overflow */
1152 _bfd_mips_elf_generic_reloc, /* special_function */
1153 "R_MICROMIPS_GOT_HI16",/* name */
1154 TRUE, /* partial_inplace */
1155 0x0000ffff, /* src_mask */
1156 0x0000ffff, /* dst_mask */
1157 FALSE), /* pcrel_offset */
1158
1159 /* Low 16 bits of displacement in global offset table. */
1160 HOWTO (R_MICROMIPS_GOT_LO16, /* type */
1161 0, /* rightshift */
1162 2, /* size (0 = byte, 1 = short, 2 = long) */
1163 16, /* bitsize */
1164 FALSE, /* pc_relative */
1165 0, /* bitpos */
1166 complain_overflow_dont, /* complain_on_overflow */
1167 _bfd_mips_elf_generic_reloc, /* special_function */
1168 "R_MICROMIPS_GOT_LO16",/* name */
1169 TRUE, /* partial_inplace */
1170 0x0000ffff, /* src_mask */
1171 0x0000ffff, /* dst_mask */
1172 FALSE), /* pcrel_offset */
1173
1174 /* 64 bit subtraction. Used in the N32 ABI. */
1175 HOWTO (R_MICROMIPS_SUB, /* type */
1176 0, /* rightshift */
1177 4, /* size (0 = byte, 1 = short, 2 = long) */
1178 64, /* bitsize */
1179 FALSE, /* pc_relative */
1180 0, /* bitpos */
1181 complain_overflow_dont, /* complain_on_overflow */
1182 _bfd_mips_elf_generic_reloc, /* special_function */
1183 "R_MICROMIPS_SUB", /* name */
1184 TRUE, /* partial_inplace */
1185 MINUS_ONE, /* src_mask */
1186 MINUS_ONE, /* dst_mask */
1187 FALSE), /* pcrel_offset */
1188
1189 /* Get the higher value of a 64 bit addend. */
1190 HOWTO (R_MICROMIPS_HIGHER, /* type */
1191 0, /* rightshift */
1192 2, /* size (0 = byte, 1 = short, 2 = long) */
1193 16, /* bitsize */
1194 FALSE, /* pc_relative */
1195 0, /* bitpos */
1196 complain_overflow_dont, /* complain_on_overflow */
1197 _bfd_mips_elf_generic_reloc, /* special_function */
1198 "R_MICROMIPS_HIGHER", /* name */
1199 TRUE, /* partial_inplace */
1200 0x0000ffff, /* src_mask */
1201 0x0000ffff, /* dst_mask */
1202 FALSE), /* pcrel_offset */
1203
1204 /* Get the highest value of a 64 bit addend. */
1205 HOWTO (R_MICROMIPS_HIGHEST, /* type */
1206 0, /* rightshift */
1207 2, /* size (0 = byte, 1 = short, 2 = long) */
1208 16, /* bitsize */
1209 FALSE, /* pc_relative */
1210 0, /* bitpos */
1211 complain_overflow_dont, /* complain_on_overflow */
1212 _bfd_mips_elf_generic_reloc, /* special_function */
1213 "R_MICROMIPS_HIGHEST", /* name */
1214 TRUE, /* partial_inplace */
1215 0x0000ffff, /* src_mask */
1216 0x0000ffff, /* dst_mask */
1217 FALSE), /* pcrel_offset */
1218
1219 /* High 16 bits of displacement in global offset table. */
1220 HOWTO (R_MICROMIPS_CALL_HI16, /* type */
1221 0, /* rightshift */
1222 2, /* size (0 = byte, 1 = short, 2 = long) */
1223 16, /* bitsize */
1224 FALSE, /* pc_relative */
1225 0, /* bitpos */
1226 complain_overflow_dont, /* complain_on_overflow */
1227 _bfd_mips_elf_generic_reloc, /* special_function */
1228 "R_MICROMIPS_CALL_HI16",/* name */
1229 TRUE, /* partial_inplace */
1230 0x0000ffff, /* src_mask */
1231 0x0000ffff, /* dst_mask */
1232 FALSE), /* pcrel_offset */
1233
1234 /* Low 16 bits of displacement in global offset table. */
1235 HOWTO (R_MICROMIPS_CALL_LO16, /* type */
1236 0, /* rightshift */
1237 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 16, /* bitsize */
1239 FALSE, /* pc_relative */
1240 0, /* bitpos */
1241 complain_overflow_dont, /* complain_on_overflow */
1242 _bfd_mips_elf_generic_reloc, /* special_function */
1243 "R_MICROMIPS_CALL_LO16",/* name */
1244 TRUE, /* partial_inplace */
1245 0x0000ffff, /* src_mask */
1246 0x0000ffff, /* dst_mask */
1247 FALSE), /* pcrel_offset */
1248
1249 /* Section displacement. */
1250 HOWTO (R_MICROMIPS_SCN_DISP, /* type */
1251 0, /* rightshift */
1252 2, /* size (0 = byte, 1 = short, 2 = long) */
1253 32, /* bitsize */
1254 FALSE, /* pc_relative */
1255 0, /* bitpos */
1256 complain_overflow_dont, /* complain_on_overflow */
1257 _bfd_mips_elf_generic_reloc, /* special_function */
1258 "R_MICROMIPS_SCN_DISP",/* name */
1259 TRUE, /* partial_inplace */
1260 0xffffffff, /* src_mask */
1261 0xffffffff, /* dst_mask */
1262 FALSE), /* pcrel_offset */
1263
1264 /* Protected jump conversion. This is an optimization hint. No
1265 relocation is required for correctness. */
1266 HOWTO (R_MICROMIPS_JALR, /* type */
1267 0, /* rightshift */
1268 2, /* size (0 = byte, 1 = short, 2 = long) */
1269 32, /* bitsize */
1270 FALSE, /* pc_relative */
1271 0, /* bitpos */
1272 complain_overflow_dont, /* complain_on_overflow */
1273 _bfd_mips_elf_generic_reloc, /* special_function */
1274 "R_MICROMIPS_JALR", /* name */
1275 FALSE, /* partial_inplace */
1276 0x00000000, /* src_mask */
1277 0x00000000, /* dst_mask */
1278 FALSE), /* pcrel_offset */
1279
1280 /* Low 16 bits of symbol value. Note that the high 16 bits of symbol values
1281 must be zero. This is used for relaxation. */
1282 HOWTO (R_MICROMIPS_HI0_LO16, /* type */
1283 0, /* rightshift */
1284 2, /* size (0 = byte, 1 = short, 2 = long) */
1285 16, /* bitsize */
1286 FALSE, /* pc_relative */
1287 0, /* bitpos */
1288 complain_overflow_dont, /* complain_on_overflow */
1289 _bfd_mips_elf_generic_reloc, /* special_function */
1290 "R_MICROMIPS_HI0_LO16",/* name */
1291 TRUE, /* partial_inplace */
1292 0x0000ffff, /* src_mask */
1293 0x0000ffff, /* dst_mask */
1294 FALSE), /* pcrel_offset */
1295
1296 EMPTY_HOWTO (158),
1297 EMPTY_HOWTO (159),
1298 EMPTY_HOWTO (160),
1299 EMPTY_HOWTO (161),
1300
1301 /* TLS general dynamic variable reference. */
1302 HOWTO (R_MICROMIPS_TLS_GD, /* type */
1303 0, /* rightshift */
1304 2, /* size (0 = byte, 1 = short, 2 = long) */
1305 16, /* bitsize */
1306 FALSE, /* pc_relative */
1307 0, /* bitpos */
1308 complain_overflow_signed, /* complain_on_overflow */
1309 _bfd_mips_elf_generic_reloc, /* special_function */
1310 "R_MICROMIPS_TLS_GD", /* name */
1311 TRUE, /* partial_inplace */
1312 0x0000ffff, /* src_mask */
1313 0x0000ffff, /* dst_mask */
1314 FALSE), /* pcrel_offset */
1315
1316 /* TLS local dynamic variable reference. */
1317 HOWTO (R_MICROMIPS_TLS_LDM, /* type */
1318 0, /* rightshift */
1319 2, /* size (0 = byte, 1 = short, 2 = long) */
1320 16, /* bitsize */
1321 FALSE, /* pc_relative */
1322 0, /* bitpos */
1323 complain_overflow_signed, /* complain_on_overflow */
1324 _bfd_mips_elf_generic_reloc, /* special_function */
1325 "R_MICROMIPS_TLS_LDM", /* name */
1326 TRUE, /* partial_inplace */
1327 0x0000ffff, /* src_mask */
1328 0x0000ffff, /* dst_mask */
1329 FALSE), /* pcrel_offset */
1330
1331 /* TLS local dynamic offset. */
1332 HOWTO (R_MICROMIPS_TLS_DTPREL_HI16, /* type */
1333 0, /* rightshift */
1334 2, /* size (0 = byte, 1 = short, 2 = long) */
1335 16, /* bitsize */
1336 FALSE, /* pc_relative */
1337 0, /* bitpos */
1338 complain_overflow_signed, /* complain_on_overflow */
1339 _bfd_mips_elf_generic_reloc, /* special_function */
1340 "R_MICROMIPS_TLS_DTPREL_HI16", /* name */
1341 TRUE, /* partial_inplace */
1342 0x0000ffff, /* src_mask */
1343 0x0000ffff, /* dst_mask */
1344 FALSE), /* pcrel_offset */
1345
1346 /* TLS local dynamic offset. */
1347 HOWTO (R_MICROMIPS_TLS_DTPREL_LO16, /* type */
1348 0, /* rightshift */
1349 2, /* size (0 = byte, 1 = short, 2 = long) */
1350 16, /* bitsize */
1351 FALSE, /* pc_relative */
1352 0, /* bitpos */
1353 complain_overflow_signed, /* complain_on_overflow */
1354 _bfd_mips_elf_generic_reloc, /* special_function */
1355 "R_MICROMIPS_TLS_DTPREL_LO16", /* name */
1356 TRUE, /* partial_inplace */
1357 0x0000ffff, /* src_mask */
1358 0x0000ffff, /* dst_mask */
1359 FALSE), /* pcrel_offset */
1360
1361 /* TLS thread pointer offset. */
1362 HOWTO (R_MICROMIPS_TLS_GOTTPREL, /* type */
1363 0, /* rightshift */
1364 2, /* size (0 = byte, 1 = short, 2 = long) */
1365 16, /* bitsize */
1366 FALSE, /* pc_relative */
1367 0, /* bitpos */
1368 complain_overflow_signed, /* complain_on_overflow */
1369 _bfd_mips_elf_generic_reloc, /* special_function */
1370 "R_MICROMIPS_TLS_GOTTPREL", /* name */
1371 TRUE, /* partial_inplace */
1372 0x0000ffff, /* src_mask */
1373 0x0000ffff, /* dst_mask */
1374 FALSE), /* pcrel_offset */
1375
1376 EMPTY_HOWTO (167),
1377 EMPTY_HOWTO (168),
1378
1379 /* TLS thread pointer offset. */
1380 HOWTO (R_MICROMIPS_TLS_TPREL_HI16, /* type */
1381 0, /* rightshift */
1382 2, /* size (0 = byte, 1 = short, 2 = long) */
1383 16, /* bitsize */
1384 FALSE, /* pc_relative */
1385 0, /* bitpos */
1386 complain_overflow_signed, /* complain_on_overflow */
1387 _bfd_mips_elf_generic_reloc, /* special_function */
1388 "R_MICROMIPS_TLS_TPREL_HI16", /* name */
1389 TRUE, /* partial_inplace */
1390 0x0000ffff, /* src_mask */
1391 0x0000ffff, /* dst_mask */
1392 FALSE), /* pcrel_offset */
1393
1394 /* TLS thread pointer offset. */
1395 HOWTO (R_MICROMIPS_TLS_TPREL_LO16, /* 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_TPREL_LO16", /* name */
1404 TRUE, /* partial_inplace */
1405 0x0000ffff, /* src_mask */
1406 0x0000ffff, /* dst_mask */
1407 FALSE), /* pcrel_offset */
1408
1409 EMPTY_HOWTO (171),
1410
1411 /* GP- and PC-relative relocations. */
1412 HOWTO (R_MICROMIPS_GPREL7_S2, /* type */
1413 2, /* rightshift */
1414 1, /* size (0 = byte, 1 = short, 2 = long) */
1415 7, /* bitsize */
1416 FALSE, /* pc_relative */
1417 0, /* bitpos */
1418 complain_overflow_signed, /* complain_on_overflow */
1419 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1420 "R_MICROMIPS_GPREL7_S2", /* name */
1421 TRUE, /* partial_inplace */
1422 0x0000007f, /* src_mask */
1423 0x0000007f, /* dst_mask */
1424 FALSE), /* pcrel_offset */
1425
1426 HOWTO (R_MICROMIPS_PC23_S2, /* type */
1427 2, /* rightshift */
1428 2, /* size (0 = byte, 1 = short, 2 = long) */
1429 23, /* bitsize */
1430 TRUE, /* pc_relative */
1431 0, /* bitpos */
1432 complain_overflow_signed, /* complain_on_overflow */
1433 _bfd_mips_elf_generic_reloc, /* special_function */
1434 "R_MICROMIPS_PC23_S2", /* name */
1435 TRUE, /* partial_inplace */
1436 0x007fffff, /* src_mask */
1437 0x007fffff, /* dst_mask */
1438 TRUE), /* pcrel_offset */
1439 };
1440
1441 /* 16 bit offset for pc-relative branches. */
1442 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1443 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1444 2, /* rightshift */
1445 2, /* size (0 = byte, 1 = short, 2 = long) */
1446 16, /* bitsize */
1447 TRUE, /* pc_relative */
1448 0, /* bitpos */
1449 complain_overflow_signed, /* complain_on_overflow */
1450 _bfd_mips_elf_generic_reloc, /* special_function */
1451 "R_MIPS_GNU_REL16_S2", /* name */
1452 TRUE, /* partial_inplace */
1453 0xffff, /* src_mask */
1454 0xffff, /* dst_mask */
1455 TRUE); /* pcrel_offset */
1456
1457 /* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
1458 It was co-opted by mips-linux for exception-handling data. It is no
1459 longer used, but should continue to be supported by the linker for
1460 backward compatibility. (GCC stopped using it in May, 2004.) */
1461 static reloc_howto_type elf_mips_gnu_pcrel32 =
1462 HOWTO (R_MIPS_PC32, /* type */
1463 0, /* rightshift */
1464 2, /* size (0 = byte, 1 = short, 2 = long) */
1465 32, /* bitsize */
1466 TRUE, /* pc_relative */
1467 0, /* bitpos */
1468 complain_overflow_signed, /* complain_on_overflow */
1469 _bfd_mips_elf_generic_reloc, /* special_function */
1470 "R_MIPS_PC32", /* name */
1471 TRUE, /* partial_inplace */
1472 0xffffffff, /* src_mask */
1473 0xffffffff, /* dst_mask */
1474 TRUE); /* pcrel_offset */
1475
1476 /* GNU extension to record C++ vtable hierarchy */
1477 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1478 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1479 0, /* rightshift */
1480 2, /* size (0 = byte, 1 = short, 2 = long) */
1481 0, /* bitsize */
1482 FALSE, /* pc_relative */
1483 0, /* bitpos */
1484 complain_overflow_dont, /* complain_on_overflow */
1485 NULL, /* special_function */
1486 "R_MIPS_GNU_VTINHERIT", /* name */
1487 FALSE, /* partial_inplace */
1488 0, /* src_mask */
1489 0, /* dst_mask */
1490 FALSE); /* pcrel_offset */
1491
1492 /* GNU extension to record C++ vtable member usage */
1493 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1494 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1495 0, /* rightshift */
1496 2, /* size (0 = byte, 1 = short, 2 = long) */
1497 0, /* bitsize */
1498 FALSE, /* pc_relative */
1499 0, /* bitpos */
1500 complain_overflow_dont, /* complain_on_overflow */
1501 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1502 "R_MIPS_GNU_VTENTRY", /* name */
1503 FALSE, /* partial_inplace */
1504 0, /* src_mask */
1505 0, /* dst_mask */
1506 FALSE); /* pcrel_offset */
1507
1508 /* Originally a VxWorks extension, but now used for other systems too. */
1509 static reloc_howto_type elf_mips_copy_howto =
1510 HOWTO (R_MIPS_COPY, /* type */
1511 0, /* rightshift */
1512 0, /* this one is variable size */
1513 0, /* bitsize */
1514 FALSE, /* pc_relative */
1515 0, /* bitpos */
1516 complain_overflow_bitfield, /* complain_on_overflow */
1517 _bfd_mips_elf_generic_reloc, /* special_function */
1518 "R_MIPS_COPY", /* name */
1519 FALSE, /* partial_inplace */
1520 0x0, /* src_mask */
1521 0x0, /* dst_mask */
1522 FALSE); /* pcrel_offset */
1523
1524 /* Originally a VxWorks extension, but now used for other systems too. */
1525 static reloc_howto_type elf_mips_jump_slot_howto =
1526 HOWTO (R_MIPS_JUMP_SLOT, /* type */
1527 0, /* rightshift */
1528 2, /* size (0 = byte, 1 = short, 2 = long) */
1529 32, /* bitsize */
1530 FALSE, /* pc_relative */
1531 0, /* bitpos */
1532 complain_overflow_bitfield, /* complain_on_overflow */
1533 _bfd_mips_elf_generic_reloc, /* special_function */
1534 "R_MIPS_JUMP_SLOT", /* name */
1535 FALSE, /* partial_inplace */
1536 0x0, /* src_mask */
1537 0x0, /* dst_mask */
1538 FALSE); /* pcrel_offset */
1539
1540 /* Used in EH tables. */
1541 static reloc_howto_type elf_mips_eh_howto =
1542 HOWTO (R_MIPS_EH, /* type */
1543 0, /* rightshift */
1544 2, /* size (0 = byte, 1 = short, 2 = long) */
1545 32, /* bitsize */
1546 FALSE, /* pc_relative */
1547 0, /* bitpos */
1548 complain_overflow_signed, /* complain_on_overflow */
1549 _bfd_mips_elf_generic_reloc, /* special_function */
1550 "R_MIPS_EH", /* name */
1551 TRUE, /* partial_inplace */
1552 0xffffffff, /* src_mask */
1553 0xffffffff, /* dst_mask */
1554 FALSE); /* pcrel_offset */
1555
1556 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1557 dangerous relocation. */
1558
1559 static bfd_boolean
1560 mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1561 {
1562 unsigned int count;
1563 asymbol **sym;
1564 unsigned int i;
1565
1566 /* If we've already figured out what GP will be, just return it. */
1567 *pgp = _bfd_get_gp_value (output_bfd);
1568 if (*pgp)
1569 return TRUE;
1570
1571 count = bfd_get_symcount (output_bfd);
1572 sym = bfd_get_outsymbols (output_bfd);
1573
1574 /* The linker script will have created a symbol named `_gp' with the
1575 appropriate value. */
1576 if (sym == NULL)
1577 i = count;
1578 else
1579 {
1580 for (i = 0; i < count; i++, sym++)
1581 {
1582 register const char *name;
1583
1584 name = bfd_asymbol_name (*sym);
1585 if (*name == '_' && strcmp (name, "_gp") == 0)
1586 {
1587 *pgp = bfd_asymbol_value (*sym);
1588 _bfd_set_gp_value (output_bfd, *pgp);
1589 break;
1590 }
1591 }
1592 }
1593
1594 if (i >= count)
1595 {
1596 /* Only get the error once. */
1597 *pgp = 4;
1598 _bfd_set_gp_value (output_bfd, *pgp);
1599 return FALSE;
1600 }
1601
1602 return TRUE;
1603 }
1604
1605 /* We have to figure out the gp value, so that we can adjust the
1606 symbol value correctly. We look up the symbol _gp in the output
1607 BFD. If we can't find it, we're stuck. We cache it in the ELF
1608 target data. We don't need to adjust the symbol value for an
1609 external symbol if we are producing relocatable output. */
1610
1611 static bfd_reloc_status_type
1612 mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1613 char **error_message, bfd_vma *pgp)
1614 {
1615 if (bfd_is_und_section (symbol->section)
1616 && ! relocatable)
1617 {
1618 *pgp = 0;
1619 return bfd_reloc_undefined;
1620 }
1621
1622 *pgp = _bfd_get_gp_value (output_bfd);
1623 if (*pgp == 0
1624 && (! relocatable
1625 || (symbol->flags & BSF_SECTION_SYM) != 0))
1626 {
1627 if (relocatable)
1628 {
1629 /* Make up a value. */
1630 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
1631 _bfd_set_gp_value (output_bfd, *pgp);
1632 }
1633 else if (!mips_elf_assign_gp (output_bfd, pgp))
1634 {
1635 *error_message =
1636 (char *) _("GP relative relocation when _gp not defined");
1637 return bfd_reloc_dangerous;
1638 }
1639 }
1640
1641 return bfd_reloc_ok;
1642 }
1643
1644 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1645 become the offset from the gp register. This function also handles
1646 R_MIPS_LITERAL relocations, although those can be handled more
1647 cleverly because the entries in the .lit8 and .lit4 sections can be
1648 merged. */
1649
1650 bfd_reloc_status_type
1651 _bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry,
1652 asymbol *symbol, void *data,
1653 asection *input_section, bfd *output_bfd,
1654 char **error_message)
1655 {
1656 bfd_boolean relocatable;
1657 bfd_reloc_status_type ret;
1658 bfd_byte *location;
1659 bfd_vma gp;
1660
1661 /* R_MIPS_LITERAL/R_MICROMIPS_LITERAL relocations are defined for local
1662 symbols only. */
1663 if (literal_reloc_p (reloc_entry->howto->type)
1664 && output_bfd != NULL
1665 && (symbol->flags & BSF_SECTION_SYM) == 0
1666 && (symbol->flags & BSF_LOCAL) != 0)
1667 {
1668 *error_message = (char *)
1669 _("literal relocation occurs for an external symbol");
1670 return bfd_reloc_outofrange;
1671 }
1672
1673 if (output_bfd != NULL)
1674 relocatable = TRUE;
1675 else
1676 {
1677 relocatable = FALSE;
1678 output_bfd = symbol->section->output_section->owner;
1679 }
1680
1681 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1682 &gp);
1683 if (ret != bfd_reloc_ok)
1684 return ret;
1685
1686 location = (bfd_byte *) data + reloc_entry->address;
1687 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1688 location);
1689 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1690 input_section, relocatable,
1691 data, gp);
1692 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1693 location);
1694
1695 return ret;
1696 }
1697
1698 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
1699 become the offset from the gp register. */
1700
1701 static bfd_reloc_status_type
1702 mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1703 void *data, asection *input_section, bfd *output_bfd,
1704 char **error_message)
1705 {
1706 bfd_boolean relocatable;
1707 bfd_reloc_status_type ret;
1708 bfd_vma gp;
1709
1710 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1711 if (output_bfd != NULL
1712 && (symbol->flags & BSF_SECTION_SYM) == 0
1713 && (symbol->flags & BSF_LOCAL) != 0)
1714 {
1715 *error_message = (char *)
1716 _("32bits gp relative relocation occurs for an external symbol");
1717 return bfd_reloc_outofrange;
1718 }
1719
1720 if (output_bfd != NULL)
1721 relocatable = TRUE;
1722 else
1723 {
1724 relocatable = FALSE;
1725 output_bfd = symbol->section->output_section->owner;
1726 }
1727
1728 ret = mips_elf_final_gp (output_bfd, symbol, relocatable,
1729 error_message, &gp);
1730 if (ret != bfd_reloc_ok)
1731 return ret;
1732
1733 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
1734 relocatable, data, gp);
1735 }
1736
1737 static bfd_reloc_status_type
1738 gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
1739 asection *input_section, bfd_boolean relocatable,
1740 void *data, bfd_vma gp)
1741 {
1742 bfd_vma relocation;
1743 bfd_vma val;
1744
1745 if (bfd_is_com_section (symbol->section))
1746 relocation = 0;
1747 else
1748 relocation = symbol->value;
1749
1750 relocation += symbol->section->output_section->vma;
1751 relocation += symbol->section->output_offset;
1752
1753 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1754 return bfd_reloc_outofrange;
1755
1756 /* Set val to the offset into the section or symbol. */
1757 val = reloc_entry->addend;
1758
1759 if (reloc_entry->howto->partial_inplace)
1760 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
1761
1762 /* Adjust val for the final section location and GP value. If we
1763 are producing relocatable output, we don't want to do this for
1764 an external symbol. */
1765 if (! relocatable
1766 || (symbol->flags & BSF_SECTION_SYM) != 0)
1767 val += relocation - gp;
1768
1769 if (reloc_entry->howto->partial_inplace)
1770 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
1771 else
1772 reloc_entry->addend = val;
1773
1774 if (relocatable)
1775 reloc_entry->address += input_section->output_offset;
1776
1777 return bfd_reloc_ok;
1778 }
1779
1780 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1781 generated when addresses are 64 bits. The upper 32 bits are a simple
1782 sign extension. */
1783
1784 static bfd_reloc_status_type
1785 mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry,
1786 asymbol *symbol ATTRIBUTE_UNUSED,
1787 void *data, asection *input_section,
1788 bfd *output_bfd, char **error_message)
1789 {
1790 bfd_reloc_status_type r;
1791 arelent reloc32;
1792 unsigned long val;
1793 bfd_size_type addr;
1794
1795 /* Do a normal 32 bit relocation on the lower 32 bits. */
1796 reloc32 = *reloc_entry;
1797 if (bfd_big_endian (abfd))
1798 reloc32.address += 4;
1799 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
1800 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
1801 output_bfd, error_message);
1802
1803 /* Sign extend into the upper 32 bits. */
1804 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
1805 if ((val & 0x80000000) != 0)
1806 val = 0xffffffff;
1807 else
1808 val = 0;
1809 addr = reloc_entry->address;
1810 if (bfd_little_endian (abfd))
1811 addr += 4;
1812 bfd_put_32 (abfd, val, (bfd_byte *) data + addr);
1813
1814 return r;
1815 }
1816
1817 /* Handle a mips16 GP relative reloc. */
1818
1819 static bfd_reloc_status_type
1820 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1821 void *data, asection *input_section, bfd *output_bfd,
1822 char **error_message)
1823 {
1824 bfd_boolean relocatable;
1825 bfd_reloc_status_type ret;
1826 bfd_byte *location;
1827 bfd_vma gp;
1828
1829 /* If we're relocating, and this is an external symbol, we don't want
1830 to change anything. */
1831 if (output_bfd != NULL
1832 && (symbol->flags & BSF_SECTION_SYM) == 0
1833 && (symbol->flags & BSF_LOCAL) != 0)
1834 {
1835 reloc_entry->address += input_section->output_offset;
1836 return bfd_reloc_ok;
1837 }
1838
1839 if (output_bfd != NULL)
1840 relocatable = TRUE;
1841 else
1842 {
1843 relocatable = FALSE;
1844 output_bfd = symbol->section->output_section->owner;
1845 }
1846
1847 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1848 &gp);
1849 if (ret != bfd_reloc_ok)
1850 return ret;
1851
1852 location = (bfd_byte *) data + reloc_entry->address;
1853 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1854 location);
1855 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1856 input_section, relocatable,
1857 data, gp);
1858 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1859 location);
1860
1861 return ret;
1862 }
1863
1864 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
1865
1866 struct elf_reloc_map {
1867 bfd_reloc_code_real_type bfd_val;
1868 enum elf_mips_reloc_type elf_val;
1869 };
1870
1871 static const struct elf_reloc_map mips_reloc_map[] =
1872 {
1873 { BFD_RELOC_NONE, R_MIPS_NONE },
1874 { BFD_RELOC_16, R_MIPS_16 },
1875 { BFD_RELOC_32, R_MIPS_32 },
1876 /* There is no BFD reloc for R_MIPS_REL32. */
1877 { BFD_RELOC_64, R_MIPS_64 },
1878 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
1879 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
1880 { BFD_RELOC_LO16, R_MIPS_LO16 },
1881 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
1882 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
1883 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
1884 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
1885 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
1886 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
1887 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
1888 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
1889 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
1890 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
1891 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
1892 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
1893 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
1894 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
1895 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
1896 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
1897 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
1898 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
1899 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
1900 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
1901 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
1902 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
1903 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
1904 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
1905 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
1906 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
1907 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
1908 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
1909 };
1910
1911 static const struct elf_reloc_map mips16_reloc_map[] =
1912 {
1913 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
1914 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
1915 { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min },
1916 { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min },
1917 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
1918 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
1919 { BFD_RELOC_MIPS16_TLS_GD, R_MIPS16_TLS_GD - R_MIPS16_min },
1920 { BFD_RELOC_MIPS16_TLS_LDM, R_MIPS16_TLS_LDM - R_MIPS16_min },
1921 { BFD_RELOC_MIPS16_TLS_DTPREL_HI16,
1922 R_MIPS16_TLS_DTPREL_HI16 - R_MIPS16_min },
1923 { BFD_RELOC_MIPS16_TLS_DTPREL_LO16,
1924 R_MIPS16_TLS_DTPREL_LO16 - R_MIPS16_min },
1925 { BFD_RELOC_MIPS16_TLS_GOTTPREL, R_MIPS16_TLS_GOTTPREL - R_MIPS16_min },
1926 { BFD_RELOC_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_HI16 - R_MIPS16_min },
1927 { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min }
1928 };
1929
1930 static const struct elf_reloc_map micromips_reloc_map[] =
1931 {
1932 { BFD_RELOC_MICROMIPS_JMP, R_MICROMIPS_26_S1 - R_MICROMIPS_min },
1933 { BFD_RELOC_MICROMIPS_HI16_S, R_MICROMIPS_HI16 - R_MICROMIPS_min },
1934 { BFD_RELOC_MICROMIPS_LO16, R_MICROMIPS_LO16 - R_MICROMIPS_min },
1935 { BFD_RELOC_MICROMIPS_GPREL16, R_MICROMIPS_GPREL16 - R_MICROMIPS_min },
1936 { BFD_RELOC_MICROMIPS_LITERAL, R_MICROMIPS_LITERAL - R_MICROMIPS_min },
1937 { BFD_RELOC_MICROMIPS_GOT16, R_MICROMIPS_GOT16 - R_MICROMIPS_min },
1938 { BFD_RELOC_MICROMIPS_7_PCREL_S1, R_MICROMIPS_PC7_S1 - R_MICROMIPS_min },
1939 { BFD_RELOC_MICROMIPS_10_PCREL_S1, R_MICROMIPS_PC10_S1 - R_MICROMIPS_min },
1940 { BFD_RELOC_MICROMIPS_16_PCREL_S1, R_MICROMIPS_PC16_S1 - R_MICROMIPS_min },
1941 { BFD_RELOC_MICROMIPS_CALL16, R_MICROMIPS_CALL16 - R_MICROMIPS_min },
1942 { BFD_RELOC_MICROMIPS_GOT_DISP, R_MICROMIPS_GOT_DISP - R_MICROMIPS_min },
1943 { BFD_RELOC_MICROMIPS_GOT_PAGE, R_MICROMIPS_GOT_PAGE - R_MICROMIPS_min },
1944 { BFD_RELOC_MICROMIPS_GOT_OFST, R_MICROMIPS_GOT_OFST - R_MICROMIPS_min },
1945 { BFD_RELOC_MICROMIPS_GOT_HI16, R_MICROMIPS_GOT_HI16 - R_MICROMIPS_min },
1946 { BFD_RELOC_MICROMIPS_GOT_LO16, R_MICROMIPS_GOT_LO16 - R_MICROMIPS_min },
1947 { BFD_RELOC_MICROMIPS_SUB, R_MICROMIPS_SUB - R_MICROMIPS_min },
1948 { BFD_RELOC_MICROMIPS_HIGHER, R_MICROMIPS_HIGHER - R_MICROMIPS_min },
1949 { BFD_RELOC_MICROMIPS_HIGHEST, R_MICROMIPS_HIGHEST - R_MICROMIPS_min },
1950 { BFD_RELOC_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_HI16 - R_MICROMIPS_min },
1951 { BFD_RELOC_MICROMIPS_CALL_LO16, R_MICROMIPS_CALL_LO16 - R_MICROMIPS_min },
1952 { BFD_RELOC_MICROMIPS_SCN_DISP, R_MICROMIPS_SCN_DISP - R_MICROMIPS_min },
1953 { BFD_RELOC_MICROMIPS_JALR, R_MICROMIPS_JALR - R_MICROMIPS_min },
1954 /* There is no BFD reloc for R_MICROMIPS_HI0_LO16. */
1955 { BFD_RELOC_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_GD - R_MICROMIPS_min },
1956 { BFD_RELOC_MICROMIPS_TLS_LDM, R_MICROMIPS_TLS_LDM - R_MICROMIPS_min },
1957 { BFD_RELOC_MICROMIPS_TLS_DTPREL_HI16,
1958 R_MICROMIPS_TLS_DTPREL_HI16 - R_MICROMIPS_min },
1959 { BFD_RELOC_MICROMIPS_TLS_DTPREL_LO16,
1960 R_MICROMIPS_TLS_DTPREL_LO16 - R_MICROMIPS_min },
1961 { BFD_RELOC_MICROMIPS_TLS_GOTTPREL,
1962 R_MICROMIPS_TLS_GOTTPREL - R_MICROMIPS_min },
1963 { BFD_RELOC_MICROMIPS_TLS_TPREL_HI16,
1964 R_MICROMIPS_TLS_TPREL_HI16 - R_MICROMIPS_min },
1965 { BFD_RELOC_MICROMIPS_TLS_TPREL_LO16,
1966 R_MICROMIPS_TLS_TPREL_LO16 - R_MICROMIPS_min },
1967 /* There is no BFD reloc for R_MICROMIPS_GPREL7_S2. */
1968 /* There is no BFD reloc for R_MICROMIPS_PC23_S2. */
1969 };
1970
1971 /* Given a BFD reloc type, return a howto structure. */
1972
1973 static reloc_howto_type *
1974 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1975 {
1976 unsigned int i;
1977 reloc_howto_type *howto_table = elf_mips_howto_table_rel;
1978 reloc_howto_type *howto16_table = elf_mips16_howto_table_rel;
1979 reloc_howto_type *howto_micromips_table = elf_micromips_howto_table_rel;
1980
1981 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
1982 i++)
1983 {
1984 if (mips_reloc_map[i].bfd_val == code)
1985 return &howto_table[(int) mips_reloc_map[i].elf_val];
1986 }
1987
1988 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
1989 i++)
1990 {
1991 if (mips16_reloc_map[i].bfd_val == code)
1992 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
1993 }
1994
1995 for (i = 0; i < sizeof (micromips_reloc_map) / sizeof (struct elf_reloc_map);
1996 i++)
1997 {
1998 if (micromips_reloc_map[i].bfd_val == code)
1999 return &howto_micromips_table[(int) micromips_reloc_map[i].elf_val];
2000 }
2001
2002 switch (code)
2003 {
2004 default:
2005 bfd_set_error (bfd_error_bad_value);
2006 return NULL;
2007
2008 case BFD_RELOC_CTOR:
2009 /* We need to handle BFD_RELOC_CTOR specially.
2010 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2011 size of addresses of the ABI. */
2012 if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64
2013 | E_MIPS_ABI_EABI64)) != 0)
2014 return &elf_mips_ctor64_howto;
2015 else
2016 return &howto_table[(int) R_MIPS_32];
2017
2018 case BFD_RELOC_VTABLE_INHERIT:
2019 return &elf_mips_gnu_vtinherit_howto;
2020 case BFD_RELOC_VTABLE_ENTRY:
2021 return &elf_mips_gnu_vtentry_howto;
2022 case BFD_RELOC_32_PCREL:
2023 return &elf_mips_gnu_pcrel32;
2024 case BFD_RELOC_MIPS_COPY:
2025 return &elf_mips_copy_howto;
2026 case BFD_RELOC_MIPS_JUMP_SLOT:
2027 return &elf_mips_jump_slot_howto;
2028 case BFD_RELOC_MIPS_EH:
2029 return &elf_mips_eh_howto;
2030 }
2031 }
2032
2033 static reloc_howto_type *
2034 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2035 const char *r_name)
2036 {
2037 unsigned int i;
2038
2039 for (i = 0;
2040 i < (sizeof (elf_mips_howto_table_rel)
2041 / sizeof (elf_mips_howto_table_rel[0]));
2042 i++)
2043 if (elf_mips_howto_table_rel[i].name != NULL
2044 && strcasecmp (elf_mips_howto_table_rel[i].name, r_name) == 0)
2045 return &elf_mips_howto_table_rel[i];
2046
2047 for (i = 0;
2048 i < (sizeof (elf_mips16_howto_table_rel)
2049 / sizeof (elf_mips16_howto_table_rel[0]));
2050 i++)
2051 if (elf_mips16_howto_table_rel[i].name != NULL
2052 && strcasecmp (elf_mips16_howto_table_rel[i].name, r_name) == 0)
2053 return &elf_mips16_howto_table_rel[i];
2054
2055 for (i = 0;
2056 i < (sizeof (elf_micromips_howto_table_rel)
2057 / sizeof (elf_micromips_howto_table_rel[0]));
2058 i++)
2059 if (elf_micromips_howto_table_rel[i].name != NULL
2060 && strcasecmp (elf_micromips_howto_table_rel[i].name, r_name) == 0)
2061 return &elf_micromips_howto_table_rel[i];
2062
2063 if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0)
2064 return &elf_mips_gnu_pcrel32;
2065 if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
2066 return &elf_mips_gnu_rel16_s2;
2067 if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
2068 return &elf_mips_gnu_vtinherit_howto;
2069 if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
2070 return &elf_mips_gnu_vtentry_howto;
2071 if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0)
2072 return &elf_mips_copy_howto;
2073 if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
2074 return &elf_mips_jump_slot_howto;
2075 if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0)
2076 return &elf_mips_eh_howto;
2077
2078 return NULL;
2079 }
2080
2081 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2082
2083 static reloc_howto_type *
2084 mips_elf32_rtype_to_howto (unsigned int r_type,
2085 bfd_boolean rela_p ATTRIBUTE_UNUSED)
2086 {
2087 switch (r_type)
2088 {
2089 case R_MIPS_GNU_VTINHERIT:
2090 return &elf_mips_gnu_vtinherit_howto;
2091 case R_MIPS_GNU_VTENTRY:
2092 return &elf_mips_gnu_vtentry_howto;
2093 case R_MIPS_GNU_REL16_S2:
2094 return &elf_mips_gnu_rel16_s2;
2095 case R_MIPS_PC32:
2096 return &elf_mips_gnu_pcrel32;
2097 case R_MIPS_COPY:
2098 return &elf_mips_copy_howto;
2099 case R_MIPS_JUMP_SLOT:
2100 return &elf_mips_jump_slot_howto;
2101 case R_MIPS_EH:
2102 return &elf_mips_eh_howto;
2103 default:
2104 if (r_type >= R_MICROMIPS_min && r_type < R_MICROMIPS_max)
2105 return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min];
2106 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
2107 return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
2108 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2109 return &elf_mips_howto_table_rel[r_type];
2110 }
2111 }
2112
2113 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2114
2115 static void
2116 mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2117 {
2118 const struct elf_backend_data *bed;
2119 unsigned int r_type;
2120
2121 r_type = ELF32_R_TYPE (dst->r_info);
2122 bed = get_elf_backend_data (abfd);
2123 cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE);
2124
2125 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2126 value for the object file. We get the addend now, rather than
2127 when we do the relocation, because the symbol manipulations done
2128 by the linker may cause us to lose track of the input BFD. */
2129 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
2130 && (gprel16_reloc_p (r_type) || literal_reloc_p (r_type)))
2131 cache_ptr->addend = elf_gp (abfd);
2132 }
2133
2134 /* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */
2135
2136 static void
2137 mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2138 {
2139 mips_info_to_howto_rel (abfd, cache_ptr, dst);
2140
2141 /* If we ever need to do any extra processing with dst->r_addend
2142 (the field omitted in an Elf_Internal_Rel) we can do it here. */
2143 }
2144 \f
2145 /* Determine whether a symbol is global for the purposes of splitting
2146 the symbol table into global symbols and local symbols. At least
2147 on Irix 5, this split must be between section symbols and all other
2148 symbols. On most ELF targets the split is between static symbols
2149 and externally visible symbols. */
2150
2151 static bfd_boolean
2152 mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym)
2153 {
2154 if (SGI_COMPAT (abfd))
2155 return (sym->flags & BSF_SECTION_SYM) == 0;
2156 else
2157 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0
2158 || bfd_is_und_section (bfd_get_section (sym))
2159 || bfd_is_com_section (bfd_get_section (sym)));
2160 }
2161 \f
2162 /* Set the right machine number for a MIPS ELF file. */
2163
2164 static bfd_boolean
2165 mips_elf32_object_p (bfd *abfd)
2166 {
2167 unsigned long mach;
2168
2169 if (ABI_N32_P (abfd))
2170 return FALSE;
2171
2172 /* Irix 5 and 6 are broken. Object file symbol tables are not always
2173 sorted correctly such that local symbols precede global symbols,
2174 and the sh_info field in the symbol table is not always right. */
2175 if (SGI_COMPAT (abfd))
2176 elf_bad_symtab (abfd) = TRUE;
2177
2178 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
2179 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
2180 return TRUE;
2181 }
2182 \f
2183 /* MIPS ELF local labels start with '$', not 'L'. */
2184
2185 static bfd_boolean
2186 mips_elf_is_local_label_name (bfd *abfd, const char *name)
2187 {
2188 if (name[0] == '$')
2189 return TRUE;
2190
2191 /* On Irix 6, the labels go back to starting with '.', so we accept
2192 the generic ELF local label syntax as well. */
2193 return _bfd_elf_is_local_label_name (abfd, name);
2194 }
2195 \f
2196 /* Support for core dump NOTE sections. */
2197 static bfd_boolean
2198 elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2199 {
2200 int offset;
2201 unsigned int size;
2202
2203 switch (note->descsz)
2204 {
2205 default:
2206 return FALSE;
2207
2208 case 256: /* Linux/MIPS */
2209 /* pr_cursig */
2210 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2211
2212 /* pr_pid */
2213 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2214
2215 /* pr_reg */
2216 offset = 72;
2217 size = 180;
2218
2219 break;
2220 }
2221
2222 /* Make a ".reg/999" section. */
2223 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2224 size, note->descpos + offset);
2225 }
2226
2227 static bfd_boolean
2228 elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2229 {
2230 switch (note->descsz)
2231 {
2232 default:
2233 return FALSE;
2234
2235 case 128: /* Linux/MIPS elf_prpsinfo */
2236 elf_tdata (abfd)->core->program
2237 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2238 elf_tdata (abfd)->core->command
2239 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2240 }
2241
2242 /* Note that for some reason, a spurious space is tacked
2243 onto the end of the args in some (at least one anyway)
2244 implementations, so strip it off if it exists. */
2245
2246 {
2247 char *command = elf_tdata (abfd)->core->command;
2248 int n = strlen (command);
2249
2250 if (0 < n && command[n - 1] == ' ')
2251 command[n - 1] = '\0';
2252 }
2253
2254 return TRUE;
2255 }
2256 \f
2257 /* Depending on the target vector we generate some version of Irix
2258 executables or "normal" MIPS ELF ABI executables. */
2259 static irix_compat_t
2260 elf32_mips_irix_compat (bfd *abfd)
2261 {
2262 if ((abfd->xvec == &mips_elf32_be_vec)
2263 || (abfd->xvec == &mips_elf32_le_vec))
2264 return ict_irix5;
2265 else
2266 return ict_none;
2267 }
2268 \f
2269 /* ECOFF swapping routines. These are used when dealing with the
2270 .mdebug section, which is in the ECOFF debugging format. */
2271 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
2272 /* Symbol table magic number. */
2273 magicSym,
2274 /* Alignment of debugging information. E.g., 4. */
2275 4,
2276 /* Sizes of external symbolic information. */
2277 sizeof (struct hdr_ext),
2278 sizeof (struct dnr_ext),
2279 sizeof (struct pdr_ext),
2280 sizeof (struct sym_ext),
2281 sizeof (struct opt_ext),
2282 sizeof (struct fdr_ext),
2283 sizeof (struct rfd_ext),
2284 sizeof (struct ext_ext),
2285 /* Functions to swap in external symbolic data. */
2286 ecoff_swap_hdr_in,
2287 ecoff_swap_dnr_in,
2288 ecoff_swap_pdr_in,
2289 ecoff_swap_sym_in,
2290 ecoff_swap_opt_in,
2291 ecoff_swap_fdr_in,
2292 ecoff_swap_rfd_in,
2293 ecoff_swap_ext_in,
2294 _bfd_ecoff_swap_tir_in,
2295 _bfd_ecoff_swap_rndx_in,
2296 /* Functions to swap out external symbolic data. */
2297 ecoff_swap_hdr_out,
2298 ecoff_swap_dnr_out,
2299 ecoff_swap_pdr_out,
2300 ecoff_swap_sym_out,
2301 ecoff_swap_opt_out,
2302 ecoff_swap_fdr_out,
2303 ecoff_swap_rfd_out,
2304 ecoff_swap_ext_out,
2305 _bfd_ecoff_swap_tir_out,
2306 _bfd_ecoff_swap_rndx_out,
2307 /* Function to read in symbolic data. */
2308 _bfd_mips_elf_read_ecoff_info
2309 };
2310 \f
2311 #define ELF_ARCH bfd_arch_mips
2312 #define ELF_TARGET_ID MIPS_ELF_DATA
2313 #define ELF_MACHINE_CODE EM_MIPS
2314
2315 #define elf_backend_collect TRUE
2316 #define elf_backend_type_change_ok TRUE
2317 #define elf_backend_can_gc_sections TRUE
2318 #define elf_backend_gc_mark_extra_sections \
2319 _bfd_mips_elf_gc_mark_extra_sections
2320 #define elf_info_to_howto mips_info_to_howto_rela
2321 #define elf_info_to_howto_rel mips_info_to_howto_rel
2322 #define elf_backend_sym_is_global mips_elf_sym_is_global
2323 #define elf_backend_object_p mips_elf32_object_p
2324 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
2325 #define elf_backend_section_processing _bfd_mips_elf_section_processing
2326 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
2327 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
2328 #define elf_backend_section_from_bfd_section \
2329 _bfd_mips_elf_section_from_bfd_section
2330 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
2331 #define elf_backend_link_output_symbol_hook \
2332 _bfd_mips_elf_link_output_symbol_hook
2333 #define elf_backend_create_dynamic_sections \
2334 _bfd_mips_elf_create_dynamic_sections
2335 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
2336 #define elf_backend_merge_symbol_attribute \
2337 _bfd_mips_elf_merge_symbol_attribute
2338 #define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
2339 #define elf_backend_adjust_dynamic_symbol \
2340 _bfd_mips_elf_adjust_dynamic_symbol
2341 #define elf_backend_always_size_sections \
2342 _bfd_mips_elf_always_size_sections
2343 #define elf_backend_size_dynamic_sections \
2344 _bfd_mips_elf_size_dynamic_sections
2345 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
2346 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
2347 #define elf_backend_finish_dynamic_symbol \
2348 _bfd_mips_elf_finish_dynamic_symbol
2349 #define elf_backend_finish_dynamic_sections \
2350 _bfd_mips_elf_finish_dynamic_sections
2351 #define elf_backend_final_write_processing \
2352 _bfd_mips_elf_final_write_processing
2353 #define elf_backend_additional_program_headers \
2354 _bfd_mips_elf_additional_program_headers
2355 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
2356 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
2357 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
2358 #define elf_backend_copy_indirect_symbol \
2359 _bfd_mips_elf_copy_indirect_symbol
2360 #define elf_backend_grok_prstatus elf32_mips_grok_prstatus
2361 #define elf_backend_grok_psinfo elf32_mips_grok_psinfo
2362 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
2363
2364 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
2365 #define elf_backend_may_use_rel_p 1
2366 #define elf_backend_may_use_rela_p 0
2367 #define elf_backend_default_use_rela_p 0
2368 #define elf_backend_sign_extend_vma TRUE
2369 #define elf_backend_plt_readonly 1
2370
2371 #define elf_backend_discard_info _bfd_mips_elf_discard_info
2372 #define elf_backend_ignore_discarded_relocs \
2373 _bfd_mips_elf_ignore_discarded_relocs
2374 #define elf_backend_write_section _bfd_mips_elf_write_section
2375 #define elf_backend_mips_irix_compat elf32_mips_irix_compat
2376 #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
2377 #define bfd_elf32_bfd_is_local_label_name \
2378 mips_elf_is_local_label_name
2379 #define bfd_elf32_bfd_is_target_special_symbol \
2380 _bfd_mips_elf_is_target_special_symbol
2381 #define bfd_elf32_get_synthetic_symtab _bfd_mips_elf_get_synthetic_symtab
2382 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
2383 #define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
2384 #define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
2385 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
2386 #define bfd_elf32_bfd_get_relocated_section_contents \
2387 _bfd_elf_mips_get_relocated_section_contents
2388 #define bfd_elf32_bfd_link_hash_table_create \
2389 _bfd_mips_elf_link_hash_table_create
2390 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
2391 #define bfd_elf32_bfd_merge_private_bfd_data \
2392 _bfd_mips_elf_merge_private_bfd_data
2393 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
2394 #define bfd_elf32_bfd_print_private_bfd_data \
2395 _bfd_mips_elf_print_private_bfd_data
2396 #define bfd_elf32_bfd_relax_section _bfd_mips_elf_relax_section
2397 #define bfd_elf32_mkobject _bfd_mips_elf_mkobject
2398
2399 /* Support for SGI-ish mips targets. */
2400 #define TARGET_LITTLE_SYM mips_elf32_le_vec
2401 #define TARGET_LITTLE_NAME "elf32-littlemips"
2402 #define TARGET_BIG_SYM mips_elf32_be_vec
2403 #define TARGET_BIG_NAME "elf32-bigmips"
2404
2405 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
2406 a value of 0x1000, and we are compatible. */
2407 #define ELF_MAXPAGESIZE 0x1000
2408 #define ELF_COMMONPAGESIZE 0x1000
2409
2410 #include "elf32-target.h"
2411
2412 /* Support for traditional mips targets. */
2413 #undef TARGET_LITTLE_SYM
2414 #undef TARGET_LITTLE_NAME
2415 #undef TARGET_BIG_SYM
2416 #undef TARGET_BIG_NAME
2417
2418 #undef ELF_MAXPAGESIZE
2419 #undef ELF_COMMONPAGESIZE
2420
2421 #define TARGET_LITTLE_SYM mips_elf32_trad_le_vec
2422 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
2423 #define TARGET_BIG_SYM mips_elf32_trad_be_vec
2424 #define TARGET_BIG_NAME "elf32-tradbigmips"
2425
2426 /* The MIPS ABI says at Page 5-1:
2427 Virtual addresses and file offsets for MIPS segments are congruent
2428 modulo 64 KByte (0x10000) or larger powers of 2. Because 64 KBytes
2429 is the maximum page size, the files are suitable for paging
2430 regardless of physical page size. */
2431 #define ELF_MAXPAGESIZE 0x10000
2432 #define ELF_COMMONPAGESIZE 0x1000
2433 #define elf32_bed elf32_tradbed
2434
2435 /* Include the target file again for this target. */
2436 #include "elf32-target.h"
2437
2438 /* FreeBSD support. */
2439
2440 #undef TARGET_LITTLE_SYM
2441 #undef TARGET_LITTLE_NAME
2442 #undef TARGET_BIG_SYM
2443 #undef TARGET_BIG_NAME
2444
2445 #define TARGET_LITTLE_SYM mips_elf32_tradfbsd_le_vec
2446 #define TARGET_LITTLE_NAME "elf32-tradlittlemips-freebsd"
2447 #define TARGET_BIG_SYM mips_elf32_tradfbsd_be_vec
2448 #define TARGET_BIG_NAME "elf32-tradbigmips-freebsd"
2449
2450 #undef ELF_OSABI
2451 #define ELF_OSABI ELFOSABI_FREEBSD
2452
2453 #undef elf32_bed
2454 #define elf32_bed elf32_fbsd_tradbed
2455
2456 #include "elf32-target.h"
2457 /* Implement elf_backend_final_write_processing for VxWorks. */
2458
2459 static void
2460 mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
2461 {
2462 _bfd_mips_elf_final_write_processing (abfd, linker);
2463 elf_vxworks_final_write_processing (abfd, linker);
2464 }
2465
2466 #undef TARGET_LITTLE_SYM
2467 #undef TARGET_LITTLE_NAME
2468 #undef TARGET_BIG_SYM
2469 #undef TARGET_BIG_NAME
2470
2471 #undef ELF_MAXPAGESIZE
2472 #undef ELF_COMMONPAGESIZE
2473
2474 #define TARGET_LITTLE_SYM mips_elf32_vxworks_le_vec
2475 #define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
2476 #define TARGET_BIG_SYM mips_elf32_vxworks_be_vec
2477 #define TARGET_BIG_NAME "elf32-bigmips-vxworks"
2478 #undef ELF_OSABI
2479
2480 #undef elf32_bed
2481 #define elf32_bed elf32_mips_vxworks_bed
2482
2483 #define ELF_MAXPAGESIZE 0x1000
2484 #define ELF_COMMONPAGESIZE 0x1000
2485
2486 #undef elf_backend_want_got_plt
2487 #define elf_backend_want_got_plt 1
2488 #undef elf_backend_want_plt_sym
2489 #define elf_backend_want_plt_sym 1
2490 #undef elf_backend_may_use_rel_p
2491 #define elf_backend_may_use_rel_p 0
2492 #undef elf_backend_may_use_rela_p
2493 #define elf_backend_may_use_rela_p 1
2494 #undef elf_backend_default_use_rela_p
2495 #define elf_backend_default_use_rela_p 1
2496 #undef elf_backend_got_header_size
2497 #define elf_backend_got_header_size (4 * 3)
2498
2499 #undef elf_backend_finish_dynamic_symbol
2500 #define elf_backend_finish_dynamic_symbol \
2501 _bfd_mips_vxworks_finish_dynamic_symbol
2502 #undef bfd_elf32_bfd_link_hash_table_create
2503 #define bfd_elf32_bfd_link_hash_table_create \
2504 _bfd_mips_vxworks_link_hash_table_create
2505 #undef elf_backend_add_symbol_hook
2506 #define elf_backend_add_symbol_hook \
2507 elf_vxworks_add_symbol_hook
2508 #undef elf_backend_link_output_symbol_hook
2509 #define elf_backend_link_output_symbol_hook \
2510 elf_vxworks_link_output_symbol_hook
2511 #undef elf_backend_emit_relocs
2512 #define elf_backend_emit_relocs \
2513 elf_vxworks_emit_relocs
2514 #undef elf_backend_final_write_processing
2515 #define elf_backend_final_write_processing \
2516 mips_vxworks_final_write_processing
2517
2518 #undef elf_backend_additional_program_headers
2519 #undef elf_backend_modify_segment_map
2520 #undef elf_backend_symbol_processing
2521 /* NOTE: elf_backend_rela_normal is not defined for MIPS. */
2522
2523 #undef bfd_elf32_get_synthetic_symtab
2524
2525 #include "elf32-target.h"
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