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2011-11-02 Tristan Gingold <gingold@adacore.com>
[binutils.git] / bfd / elf32-mips.c
blobfd3d4bae955dd1dca02cc636280493270dd5f1ba
1 /* MIPS-specific support for 32-bit ELF
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
4
5 Most of the information added by Ian Lance Taylor, Cygnus Support,
6 <ian@cygnus.com>.
7 N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
8 <mark@codesourcery.com>
9 Traditional MIPS targets support added by Koundinya.K, Dansk Data
10 Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
11
12 This file is part of BFD, the Binary File Descriptor library.
13
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 3 of the License, or
17 (at your option) any later version.
18
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
23
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
28
29
30 /* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly
31 different MIPS ELF from other targets. This matters when linking.
32 This file supports both, switching at runtime. */
33
34 #include "sysdep.h"
35 #include "bfd.h"
36 #include "libbfd.h"
37 #include "bfdlink.h"
38 #include "genlink.h"
39 #include "elf-bfd.h"
40 #include "elfxx-mips.h"
41 #include "elf/mips.h"
42 #include "elf-vxworks.h"
43
44 /* Get the ECOFF swapping routines. */
45 #include "coff/sym.h"
46 #include "coff/symconst.h"
47 #include "coff/internal.h"
48 #include "coff/ecoff.h"
49 #include "coff/mips.h"
50 #define ECOFF_SIGNED_32
51 #include "ecoffswap.h"
52
53 static bfd_reloc_status_type gprel32_with_gp
54 (bfd *, asymbol *, arelent *, asection *, bfd_boolean, void *, bfd_vma);
55 static bfd_reloc_status_type mips_elf_gprel32_reloc
56 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
57 static bfd_reloc_status_type mips32_64bit_reloc
58 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
59 static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
60 (bfd *, bfd_reloc_code_real_type);
61 static reloc_howto_type *mips_elf32_rtype_to_howto
62 (unsigned int, bfd_boolean);
63 static void mips_info_to_howto_rel
64 (bfd *, arelent *, Elf_Internal_Rela *);
65 static void mips_info_to_howto_rela
66 (bfd *, arelent *, Elf_Internal_Rela *);
67 static bfd_boolean mips_elf_sym_is_global
68 (bfd *, asymbol *);
69 static bfd_boolean mips_elf32_object_p
70 (bfd *);
71 static bfd_boolean mips_elf_is_local_label_name
72 (bfd *, const char *);
73 static bfd_reloc_status_type mips16_gprel_reloc
74 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
75 static bfd_reloc_status_type mips_elf_final_gp
76 (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *);
77 static bfd_boolean mips_elf_assign_gp
78 (bfd *, bfd_vma *);
79 static bfd_boolean elf32_mips_grok_prstatus
80 (bfd *, Elf_Internal_Note *);
81 static bfd_boolean elf32_mips_grok_psinfo
82 (bfd *, Elf_Internal_Note *);
83 static irix_compat_t elf32_mips_irix_compat
84 (bfd *);
85
86 extern const bfd_target bfd_elf32_bigmips_vec;
87 extern const bfd_target bfd_elf32_littlemips_vec;
88
89 /* Nonzero if ABFD is using the N32 ABI. */
90 #define ABI_N32_P(abfd) \
91 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
92
93 /* Whether we are trying to be compatible with IRIX at all. */
94 #define SGI_COMPAT(abfd) \
95 (elf32_mips_irix_compat (abfd) != ict_none)
96
97 /* The number of local .got entries we reserve. */
98 #define MIPS_RESERVED_GOTNO (2)
99
100 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value
101 from smaller values. Start with zero, widen, *then* decrement. */
102 #define MINUS_ONE (((bfd_vma)0) - 1)
103
104 /* The relocation table used for SHT_REL sections. */
105
106 static reloc_howto_type elf_mips_howto_table_rel[] =
107 {
108 /* No relocation. */
109 HOWTO (R_MIPS_NONE, /* type */
110 0, /* rightshift */
111 0, /* size (0 = byte, 1 = short, 2 = long) */
112 0, /* bitsize */
113 FALSE, /* pc_relative */
114 0, /* bitpos */
115 complain_overflow_dont, /* complain_on_overflow */
116 _bfd_mips_elf_generic_reloc, /* special_function */
117 "R_MIPS_NONE", /* name */
118 FALSE, /* partial_inplace */
119 0, /* src_mask */
120 0, /* dst_mask */
121 FALSE), /* pcrel_offset */
122
123 /* 16 bit relocation. */
124 HOWTO (R_MIPS_16, /* type */
125 0, /* rightshift */
126 2, /* size (0 = byte, 1 = short, 2 = long) */
127 16, /* bitsize */
128 FALSE, /* pc_relative */
129 0, /* bitpos */
130 complain_overflow_signed, /* complain_on_overflow */
131 _bfd_mips_elf_generic_reloc, /* special_function */
132 "R_MIPS_16", /* name */
133 TRUE, /* partial_inplace */
134 0x0000ffff, /* src_mask */
135 0x0000ffff, /* dst_mask */
136 FALSE), /* pcrel_offset */
137
138 /* 32 bit relocation. */
139 HOWTO (R_MIPS_32, /* type */
140 0, /* rightshift */
141 2, /* size (0 = byte, 1 = short, 2 = long) */
142 32, /* bitsize */
143 FALSE, /* pc_relative */
144 0, /* bitpos */
145 complain_overflow_dont, /* complain_on_overflow */
146 _bfd_mips_elf_generic_reloc, /* special_function */
147 "R_MIPS_32", /* name */
148 TRUE, /* partial_inplace */
149 0xffffffff, /* src_mask */
150 0xffffffff, /* dst_mask */
151 FALSE), /* pcrel_offset */
152
153 /* 32 bit symbol relative relocation. */
154 HOWTO (R_MIPS_REL32, /* type */
155 0, /* rightshift */
156 2, /* size (0 = byte, 1 = short, 2 = long) */
157 32, /* bitsize */
158 FALSE, /* pc_relative */
159 0, /* bitpos */
160 complain_overflow_dont, /* complain_on_overflow */
161 _bfd_mips_elf_generic_reloc, /* special_function */
162 "R_MIPS_REL32", /* name */
163 TRUE, /* partial_inplace */
164 0xffffffff, /* src_mask */
165 0xffffffff, /* dst_mask */
166 FALSE), /* pcrel_offset */
167
168 /* 26 bit jump address. */
169 HOWTO (R_MIPS_26, /* type */
170 2, /* rightshift */
171 2, /* size (0 = byte, 1 = short, 2 = long) */
172 26, /* bitsize */
173 FALSE, /* pc_relative */
174 0, /* bitpos */
175 complain_overflow_dont, /* complain_on_overflow */
176 /* This needs complex overflow
177 detection, because the upper four
178 bits must match the PC + 4. */
179 _bfd_mips_elf_generic_reloc, /* special_function */
180 "R_MIPS_26", /* name */
181 TRUE, /* partial_inplace */
182 0x03ffffff, /* src_mask */
183 0x03ffffff, /* dst_mask */
184 FALSE), /* pcrel_offset */
185
186 /* High 16 bits of symbol value. */
187 HOWTO (R_MIPS_HI16, /* type */
188 16, /* rightshift */
189 2, /* size (0 = byte, 1 = short, 2 = long) */
190 16, /* bitsize */
191 FALSE, /* pc_relative */
192 0, /* bitpos */
193 complain_overflow_dont, /* complain_on_overflow */
194 _bfd_mips_elf_hi16_reloc, /* special_function */
195 "R_MIPS_HI16", /* name */
196 TRUE, /* partial_inplace */
197 0x0000ffff, /* src_mask */
198 0x0000ffff, /* dst_mask */
199 FALSE), /* pcrel_offset */
200
201 /* Low 16 bits of symbol value. */
202 HOWTO (R_MIPS_LO16, /* type */
203 0, /* rightshift */
204 2, /* size (0 = byte, 1 = short, 2 = long) */
205 16, /* bitsize */
206 FALSE, /* pc_relative */
207 0, /* bitpos */
208 complain_overflow_dont, /* complain_on_overflow */
209 _bfd_mips_elf_lo16_reloc, /* special_function */
210 "R_MIPS_LO16", /* name */
211 TRUE, /* partial_inplace */
212 0x0000ffff, /* src_mask */
213 0x0000ffff, /* dst_mask */
214 FALSE), /* pcrel_offset */
215
216 /* GP relative reference. */
217 HOWTO (R_MIPS_GPREL16, /* type */
218 0, /* rightshift */
219 2, /* size (0 = byte, 1 = short, 2 = long) */
220 16, /* bitsize */
221 FALSE, /* pc_relative */
222 0, /* bitpos */
223 complain_overflow_signed, /* complain_on_overflow */
224 _bfd_mips_elf32_gprel16_reloc, /* special_function */
225 "R_MIPS_GPREL16", /* name */
226 TRUE, /* partial_inplace */
227 0x0000ffff, /* src_mask */
228 0x0000ffff, /* dst_mask */
229 FALSE), /* pcrel_offset */
230
231 /* Reference to literal section. */
232 HOWTO (R_MIPS_LITERAL, /* type */
233 0, /* rightshift */
234 2, /* size (0 = byte, 1 = short, 2 = long) */
235 16, /* bitsize */
236 FALSE, /* pc_relative */
237 0, /* bitpos */
238 complain_overflow_signed, /* complain_on_overflow */
239 _bfd_mips_elf32_gprel16_reloc, /* special_function */
240 "R_MIPS_LITERAL", /* name */
241 TRUE, /* partial_inplace */
242 0x0000ffff, /* src_mask */
243 0x0000ffff, /* dst_mask */
244 FALSE), /* pcrel_offset */
245
246 /* Reference to global offset table. */
247 HOWTO (R_MIPS_GOT16, /* type */
248 0, /* rightshift */
249 2, /* size (0 = byte, 1 = short, 2 = long) */
250 16, /* bitsize */
251 FALSE, /* pc_relative */
252 0, /* bitpos */
253 complain_overflow_signed, /* complain_on_overflow */
254 _bfd_mips_elf_got16_reloc, /* special_function */
255 "R_MIPS_GOT16", /* name */
256 TRUE, /* partial_inplace */
257 0x0000ffff, /* src_mask */
258 0x0000ffff, /* dst_mask */
259 FALSE), /* pcrel_offset */
260
261 /* 16 bit PC relative reference. Note that the ABI document has a typo
262 and claims R_MIPS_PC16 to be not rightshifted, rendering it useless.
263 We do the right thing here. */
264 HOWTO (R_MIPS_PC16, /* type */
265 2, /* rightshift */
266 2, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
268 TRUE, /* pc_relative */
269 0, /* bitpos */
270 complain_overflow_signed, /* complain_on_overflow */
271 _bfd_mips_elf_generic_reloc, /* special_function */
272 "R_MIPS_PC16", /* name */
273 TRUE, /* partial_inplace */
274 0x0000ffff, /* src_mask */
275 0x0000ffff, /* dst_mask */
276 TRUE), /* pcrel_offset */
277
278 /* 16 bit call through global offset table. */
279 HOWTO (R_MIPS_CALL16, /* type */
280 0, /* rightshift */
281 2, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
283 FALSE, /* pc_relative */
284 0, /* bitpos */
285 complain_overflow_signed, /* complain_on_overflow */
286 _bfd_mips_elf_generic_reloc, /* special_function */
287 "R_MIPS_CALL16", /* name */
288 TRUE, /* partial_inplace */
289 0x0000ffff, /* src_mask */
290 0x0000ffff, /* dst_mask */
291 FALSE), /* pcrel_offset */
292
293 /* 32 bit GP relative reference. */
294 HOWTO (R_MIPS_GPREL32, /* type */
295 0, /* rightshift */
296 2, /* size (0 = byte, 1 = short, 2 = long) */
297 32, /* bitsize */
298 FALSE, /* pc_relative */
299 0, /* bitpos */
300 complain_overflow_dont, /* complain_on_overflow */
301 mips_elf_gprel32_reloc, /* special_function */
302 "R_MIPS_GPREL32", /* name */
303 TRUE, /* partial_inplace */
304 0xffffffff, /* src_mask */
305 0xffffffff, /* dst_mask */
306 FALSE), /* pcrel_offset */
307
308 /* The remaining relocs are defined on Irix 5, although they are
309 not defined by the ABI. */
310 EMPTY_HOWTO (13),
311 EMPTY_HOWTO (14),
312 EMPTY_HOWTO (15),
313
314 /* A 5 bit shift field. */
315 HOWTO (R_MIPS_SHIFT5, /* type */
316 0, /* rightshift */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
318 5, /* bitsize */
319 FALSE, /* pc_relative */
320 6, /* bitpos */
321 complain_overflow_bitfield, /* complain_on_overflow */
322 _bfd_mips_elf_generic_reloc, /* special_function */
323 "R_MIPS_SHIFT5", /* name */
324 TRUE, /* partial_inplace */
325 0x000007c0, /* src_mask */
326 0x000007c0, /* dst_mask */
327 FALSE), /* pcrel_offset */
328
329 /* A 6 bit shift field. */
330 /* FIXME: This is not handled correctly; a special function is
331 needed to put the most significant bit in the right place. */
332 HOWTO (R_MIPS_SHIFT6, /* type */
333 0, /* rightshift */
334 2, /* size (0 = byte, 1 = short, 2 = long) */
335 6, /* bitsize */
336 FALSE, /* pc_relative */
337 6, /* bitpos */
338 complain_overflow_bitfield, /* complain_on_overflow */
339 _bfd_mips_elf_generic_reloc, /* special_function */
340 "R_MIPS_SHIFT6", /* name */
341 TRUE, /* partial_inplace */
342 0x000007c4, /* src_mask */
343 0x000007c4, /* dst_mask */
344 FALSE), /* pcrel_offset */
345
346 /* A 64 bit relocation. */
347 HOWTO (R_MIPS_64, /* type */
348 0, /* rightshift */
349 4, /* size (0 = byte, 1 = short, 2 = long) */
350 64, /* bitsize */
351 FALSE, /* pc_relative */
352 0, /* bitpos */
353 complain_overflow_dont, /* complain_on_overflow */
354 mips32_64bit_reloc, /* special_function */
355 "R_MIPS_64", /* name */
356 TRUE, /* partial_inplace */
357 MINUS_ONE, /* src_mask */
358 MINUS_ONE, /* dst_mask */
359 FALSE), /* pcrel_offset */
360
361 /* Displacement in the global offset table. */
362 HOWTO (R_MIPS_GOT_DISP, /* type */
363 0, /* rightshift */
364 2, /* size (0 = byte, 1 = short, 2 = long) */
365 16, /* bitsize */
366 FALSE, /* pc_relative */
367 0, /* bitpos */
368 complain_overflow_signed, /* complain_on_overflow */
369 _bfd_mips_elf_generic_reloc, /* special_function */
370 "R_MIPS_GOT_DISP", /* name */
371 TRUE, /* partial_inplace */
372 0x0000ffff, /* src_mask */
373 0x0000ffff, /* dst_mask */
374 FALSE), /* pcrel_offset */
375
376 /* Displacement to page pointer in the global offset table. */
377 HOWTO (R_MIPS_GOT_PAGE, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 16, /* bitsize */
381 FALSE, /* pc_relative */
382 0, /* bitpos */
383 complain_overflow_signed, /* complain_on_overflow */
384 _bfd_mips_elf_generic_reloc, /* special_function */
385 "R_MIPS_GOT_PAGE", /* name */
386 TRUE, /* partial_inplace */
387 0x0000ffff, /* src_mask */
388 0x0000ffff, /* dst_mask */
389 FALSE), /* pcrel_offset */
390
391 /* Offset from page pointer in the global offset table. */
392 HOWTO (R_MIPS_GOT_OFST, /* type */
393 0, /* rightshift */
394 2, /* size (0 = byte, 1 = short, 2 = long) */
395 16, /* bitsize */
396 FALSE, /* pc_relative */
397 0, /* bitpos */
398 complain_overflow_signed, /* complain_on_overflow */
399 _bfd_mips_elf_generic_reloc, /* special_function */
400 "R_MIPS_GOT_OFST", /* name */
401 TRUE, /* partial_inplace */
402 0x0000ffff, /* src_mask */
403 0x0000ffff, /* dst_mask */
404 FALSE), /* pcrel_offset */
405
406 /* High 16 bits of displacement in global offset table. */
407 HOWTO (R_MIPS_GOT_HI16, /* type */
408 0, /* rightshift */
409 2, /* size (0 = byte, 1 = short, 2 = long) */
410 16, /* bitsize */
411 FALSE, /* pc_relative */
412 0, /* bitpos */
413 complain_overflow_dont, /* complain_on_overflow */
414 _bfd_mips_elf_generic_reloc, /* special_function */
415 "R_MIPS_GOT_HI16", /* name */
416 TRUE, /* partial_inplace */
417 0x0000ffff, /* src_mask */
418 0x0000ffff, /* dst_mask */
419 FALSE), /* pcrel_offset */
420
421 /* Low 16 bits of displacement in global offset table. */
422 HOWTO (R_MIPS_GOT_LO16, /* type */
423 0, /* rightshift */
424 2, /* size (0 = byte, 1 = short, 2 = long) */
425 16, /* bitsize */
426 FALSE, /* pc_relative */
427 0, /* bitpos */
428 complain_overflow_dont, /* complain_on_overflow */
429 _bfd_mips_elf_generic_reloc, /* special_function */
430 "R_MIPS_GOT_LO16", /* name */
431 TRUE, /* partial_inplace */
432 0x0000ffff, /* src_mask */
433 0x0000ffff, /* dst_mask */
434 FALSE), /* pcrel_offset */
435
436 /* 64 bit subtraction. Used in the N32 ABI. */
437 HOWTO (R_MIPS_SUB, /* type */
438 0, /* rightshift */
439 4, /* size (0 = byte, 1 = short, 2 = long) */
440 64, /* bitsize */
441 FALSE, /* pc_relative */
442 0, /* bitpos */
443 complain_overflow_dont, /* complain_on_overflow */
444 _bfd_mips_elf_generic_reloc, /* special_function */
445 "R_MIPS_SUB", /* name */
446 TRUE, /* partial_inplace */
447 MINUS_ONE, /* src_mask */
448 MINUS_ONE, /* dst_mask */
449 FALSE), /* pcrel_offset */
450
451 /* Used to cause the linker to insert and delete instructions? */
452 EMPTY_HOWTO (R_MIPS_INSERT_A),
453 EMPTY_HOWTO (R_MIPS_INSERT_B),
454 EMPTY_HOWTO (R_MIPS_DELETE),
455
456 /* Get the higher value of a 64 bit addend. */
457 HOWTO (R_MIPS_HIGHER, /* type */
458 0, /* rightshift */
459 2, /* size (0 = byte, 1 = short, 2 = long) */
460 16, /* bitsize */
461 FALSE, /* pc_relative */
462 0, /* bitpos */
463 complain_overflow_dont, /* complain_on_overflow */
464 _bfd_mips_elf_generic_reloc, /* special_function */
465 "R_MIPS_HIGHER", /* name */
466 TRUE, /* partial_inplace */
467 0x0000ffff, /* src_mask */
468 0x0000ffff, /* dst_mask */
469 FALSE), /* pcrel_offset */
470
471 /* Get the highest value of a 64 bit addend. */
472 HOWTO (R_MIPS_HIGHEST, /* type */
473 0, /* rightshift */
474 2, /* size (0 = byte, 1 = short, 2 = long) */
475 16, /* bitsize */
476 FALSE, /* pc_relative */
477 0, /* bitpos */
478 complain_overflow_dont, /* complain_on_overflow */
479 _bfd_mips_elf_generic_reloc, /* special_function */
480 "R_MIPS_HIGHEST", /* name */
481 TRUE, /* partial_inplace */
482 0x0000ffff, /* src_mask */
483 0x0000ffff, /* dst_mask */
484 FALSE), /* pcrel_offset */
485
486 /* High 16 bits of displacement in global offset table. */
487 HOWTO (R_MIPS_CALL_HI16, /* type */
488 0, /* rightshift */
489 2, /* size (0 = byte, 1 = short, 2 = long) */
490 16, /* bitsize */
491 FALSE, /* pc_relative */
492 0, /* bitpos */
493 complain_overflow_dont, /* complain_on_overflow */
494 _bfd_mips_elf_generic_reloc, /* special_function */
495 "R_MIPS_CALL_HI16", /* name */
496 TRUE, /* partial_inplace */
497 0x0000ffff, /* src_mask */
498 0x0000ffff, /* dst_mask */
499 FALSE), /* pcrel_offset */
500
501 /* Low 16 bits of displacement in global offset table. */
502 HOWTO (R_MIPS_CALL_LO16, /* type */
503 0, /* rightshift */
504 2, /* size (0 = byte, 1 = short, 2 = long) */
505 16, /* bitsize */
506 FALSE, /* pc_relative */
507 0, /* bitpos */
508 complain_overflow_dont, /* complain_on_overflow */
509 _bfd_mips_elf_generic_reloc, /* special_function */
510 "R_MIPS_CALL_LO16", /* name */
511 TRUE, /* partial_inplace */
512 0x0000ffff, /* src_mask */
513 0x0000ffff, /* dst_mask */
514 FALSE), /* pcrel_offset */
515
516 /* Section displacement. */
517 HOWTO (R_MIPS_SCN_DISP, /* type */
518 0, /* rightshift */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
520 32, /* bitsize */
521 FALSE, /* pc_relative */
522 0, /* bitpos */
523 complain_overflow_dont, /* complain_on_overflow */
524 _bfd_mips_elf_generic_reloc, /* special_function */
525 "R_MIPS_SCN_DISP", /* name */
526 TRUE, /* partial_inplace */
527 0xffffffff, /* src_mask */
528 0xffffffff, /* dst_mask */
529 FALSE), /* pcrel_offset */
530
531 EMPTY_HOWTO (R_MIPS_REL16),
532 EMPTY_HOWTO (R_MIPS_ADD_IMMEDIATE),
533 EMPTY_HOWTO (R_MIPS_PJUMP),
534 EMPTY_HOWTO (R_MIPS_RELGOT),
535
536 /* Protected jump conversion. This is an optimization hint. No
537 relocation is required for correctness. */
538 HOWTO (R_MIPS_JALR, /* type */
539 0, /* rightshift */
540 2, /* size (0 = byte, 1 = short, 2 = long) */
541 32, /* bitsize */
542 FALSE, /* pc_relative */
543 0, /* bitpos */
544 complain_overflow_dont, /* complain_on_overflow */
545 _bfd_mips_elf_generic_reloc, /* special_function */
546 "R_MIPS_JALR", /* name */
547 FALSE, /* partial_inplace */
548 0x00000000, /* src_mask */
549 0x00000000, /* dst_mask */
550 FALSE), /* pcrel_offset */
551
552 /* TLS GD/LD dynamic relocations. */
553 HOWTO (R_MIPS_TLS_DTPMOD32, /* type */
554 0, /* rightshift */
555 2, /* size (0 = byte, 1 = short, 2 = long) */
556 32, /* bitsize */
557 FALSE, /* pc_relative */
558 0, /* bitpos */
559 complain_overflow_dont, /* complain_on_overflow */
560 _bfd_mips_elf_generic_reloc, /* special_function */
561 "R_MIPS_TLS_DTPMOD32", /* name */
562 TRUE, /* partial_inplace */
563 0xffffffff, /* src_mask */
564 0xffffffff, /* dst_mask */
565 FALSE), /* pcrel_offset */
566
567 HOWTO (R_MIPS_TLS_DTPREL32, /* type */
568 0, /* rightshift */
569 2, /* size (0 = byte, 1 = short, 2 = long) */
570 32, /* bitsize */
571 FALSE, /* pc_relative */
572 0, /* bitpos */
573 complain_overflow_dont, /* complain_on_overflow */
574 _bfd_mips_elf_generic_reloc, /* special_function */
575 "R_MIPS_TLS_DTPREL32", /* name */
576 TRUE, /* partial_inplace */
577 0xffffffff, /* src_mask */
578 0xffffffff, /* dst_mask */
579 FALSE), /* pcrel_offset */
580
581 EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
582 EMPTY_HOWTO (R_MIPS_TLS_DTPREL64),
583
584 /* TLS general dynamic variable reference. */
585 HOWTO (R_MIPS_TLS_GD, /* type */
586 0, /* rightshift */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
588 16, /* bitsize */
589 FALSE, /* pc_relative */
590 0, /* bitpos */
591 complain_overflow_signed, /* complain_on_overflow */
592 _bfd_mips_elf_generic_reloc, /* special_function */
593 "R_MIPS_TLS_GD", /* name */
594 TRUE, /* partial_inplace */
595 0x0000ffff, /* src_mask */
596 0x0000ffff, /* dst_mask */
597 FALSE), /* pcrel_offset */
598
599 /* TLS local dynamic variable reference. */
600 HOWTO (R_MIPS_TLS_LDM, /* type */
601 0, /* rightshift */
602 2, /* size (0 = byte, 1 = short, 2 = long) */
603 16, /* bitsize */
604 FALSE, /* pc_relative */
605 0, /* bitpos */
606 complain_overflow_signed, /* complain_on_overflow */
607 _bfd_mips_elf_generic_reloc, /* special_function */
608 "R_MIPS_TLS_LDM", /* name */
609 TRUE, /* partial_inplace */
610 0x0000ffff, /* src_mask */
611 0x0000ffff, /* dst_mask */
612 FALSE), /* pcrel_offset */
613
614 /* TLS local dynamic offset. */
615 HOWTO (R_MIPS_TLS_DTPREL_HI16, /* type */
616 0, /* rightshift */
617 2, /* size (0 = byte, 1 = short, 2 = long) */
618 16, /* bitsize */
619 FALSE, /* pc_relative */
620 0, /* bitpos */
621 complain_overflow_signed, /* complain_on_overflow */
622 _bfd_mips_elf_generic_reloc, /* special_function */
623 "R_MIPS_TLS_DTPREL_HI16", /* name */
624 TRUE, /* partial_inplace */
625 0x0000ffff, /* src_mask */
626 0x0000ffff, /* dst_mask */
627 FALSE), /* pcrel_offset */
628
629 /* TLS local dynamic offset. */
630 HOWTO (R_MIPS_TLS_DTPREL_LO16, /* type */
631 0, /* rightshift */
632 2, /* size (0 = byte, 1 = short, 2 = long) */
633 16, /* bitsize */
634 FALSE, /* pc_relative */
635 0, /* bitpos */
636 complain_overflow_signed, /* complain_on_overflow */
637 _bfd_mips_elf_generic_reloc, /* special_function */
638 "R_MIPS_TLS_DTPREL_LO16", /* name */
639 TRUE, /* partial_inplace */
640 0x0000ffff, /* src_mask */
641 0x0000ffff, /* dst_mask */
642 FALSE), /* pcrel_offset */
643
644 /* TLS thread pointer offset. */
645 HOWTO (R_MIPS_TLS_GOTTPREL, /* type */
646 0, /* rightshift */
647 2, /* size (0 = byte, 1 = short, 2 = long) */
648 16, /* bitsize */
649 FALSE, /* pc_relative */
650 0, /* bitpos */
651 complain_overflow_signed, /* complain_on_overflow */
652 _bfd_mips_elf_generic_reloc, /* special_function */
653 "R_MIPS_TLS_GOTTPREL", /* name */
654 TRUE, /* partial_inplace */
655 0x0000ffff, /* src_mask */
656 0x0000ffff, /* dst_mask */
657 FALSE), /* pcrel_offset */
658
659 /* TLS IE dynamic relocations. */
660 HOWTO (R_MIPS_TLS_TPREL32, /* type */
661 0, /* rightshift */
662 2, /* size (0 = byte, 1 = short, 2 = long) */
663 32, /* bitsize */
664 FALSE, /* pc_relative */
665 0, /* bitpos */
666 complain_overflow_dont, /* complain_on_overflow */
667 _bfd_mips_elf_generic_reloc, /* special_function */
668 "R_MIPS_TLS_TPREL32", /* name */
669 TRUE, /* partial_inplace */
670 0xffffffff, /* src_mask */
671 0xffffffff, /* dst_mask */
672 FALSE), /* pcrel_offset */
673
674 EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
675
676 /* TLS thread pointer offset. */
677 HOWTO (R_MIPS_TLS_TPREL_HI16, /* type */
678 0, /* rightshift */
679 2, /* size (0 = byte, 1 = short, 2 = long) */
680 16, /* bitsize */
681 FALSE, /* pc_relative */
682 0, /* bitpos */
683 complain_overflow_signed, /* complain_on_overflow */
684 _bfd_mips_elf_generic_reloc, /* special_function */
685 "R_MIPS_TLS_TPREL_HI16", /* name */
686 TRUE, /* partial_inplace */
687 0x0000ffff, /* src_mask */
688 0x0000ffff, /* dst_mask */
689 FALSE), /* pcrel_offset */
690
691 /* TLS thread pointer offset. */
692 HOWTO (R_MIPS_TLS_TPREL_LO16, /* type */
693 0, /* rightshift */
694 2, /* size (0 = byte, 1 = short, 2 = long) */
695 16, /* bitsize */
696 FALSE, /* pc_relative */
697 0, /* bitpos */
698 complain_overflow_signed, /* complain_on_overflow */
699 _bfd_mips_elf_generic_reloc, /* special_function */
700 "R_MIPS_TLS_TPREL_LO16", /* name */
701 TRUE, /* partial_inplace */
702 0x0000ffff, /* src_mask */
703 0x0000ffff, /* dst_mask */
704 FALSE), /* pcrel_offset */
705
706 /* 32 bit relocation with no addend. */
707 HOWTO (R_MIPS_GLOB_DAT, /* type */
708 0, /* rightshift */
709 2, /* size (0 = byte, 1 = short, 2 = long) */
710 32, /* bitsize */
711 FALSE, /* pc_relative */
712 0, /* bitpos */
713 complain_overflow_dont, /* complain_on_overflow */
714 _bfd_mips_elf_generic_reloc, /* special_function */
715 "R_MIPS_GLOB_DAT", /* name */
716 FALSE, /* partial_inplace */
717 0x0, /* src_mask */
718 0xffffffff, /* dst_mask */
719 FALSE), /* pcrel_offset */
720 };
721
722 /* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
723 is a hack to make the linker think that we need 64 bit values. */
724 static reloc_howto_type elf_mips_ctor64_howto =
725 HOWTO (R_MIPS_64, /* type */
726 0, /* rightshift */
727 4, /* size (0 = byte, 1 = short, 2 = long) */
728 32, /* bitsize */
729 FALSE, /* pc_relative */
730 0, /* bitpos */
731 complain_overflow_signed, /* complain_on_overflow */
732 mips32_64bit_reloc, /* special_function */
733 "R_MIPS_64", /* name */
734 TRUE, /* partial_inplace */
735 0xffffffff, /* src_mask */
736 0xffffffff, /* dst_mask */
737 FALSE); /* pcrel_offset */
738
739 static reloc_howto_type elf_mips16_howto_table_rel[] =
740 {
741 /* The reloc used for the mips16 jump instruction. */
742 HOWTO (R_MIPS16_26, /* type */
743 2, /* rightshift */
744 2, /* size (0 = byte, 1 = short, 2 = long) */
745 26, /* bitsize */
746 FALSE, /* pc_relative */
747 0, /* bitpos */
748 complain_overflow_dont, /* complain_on_overflow */
749 /* This needs complex overflow
750 detection, because the upper four
751 bits must match the PC. */
752 _bfd_mips_elf_generic_reloc, /* special_function */
753 "R_MIPS16_26", /* name */
754 TRUE, /* partial_inplace */
755 0x3ffffff, /* src_mask */
756 0x3ffffff, /* dst_mask */
757 FALSE), /* pcrel_offset */
758
759 /* The reloc used for the mips16 gprel instruction. */
760 HOWTO (R_MIPS16_GPREL, /* type */
761 0, /* rightshift */
762 2, /* size (0 = byte, 1 = short, 2 = long) */
763 16, /* bitsize */
764 FALSE, /* pc_relative */
765 0, /* bitpos */
766 complain_overflow_signed, /* complain_on_overflow */
767 mips16_gprel_reloc, /* special_function */
768 "R_MIPS16_GPREL", /* name */
769 TRUE, /* partial_inplace */
770 0x0000ffff, /* src_mask */
771 0x0000ffff, /* dst_mask */
772 FALSE), /* pcrel_offset */
773
774 /* A MIPS16 reference to the global offset table. */
775 HOWTO (R_MIPS16_GOT16, /* type */
776 0, /* rightshift */
777 2, /* size (0 = byte, 1 = short, 2 = long) */
778 16, /* bitsize */
779 FALSE, /* pc_relative */
780 0, /* bitpos */
781 complain_overflow_dont, /* complain_on_overflow */
782 _bfd_mips_elf_got16_reloc, /* special_function */
783 "R_MIPS16_GOT16", /* name */
784 TRUE, /* partial_inplace */
785 0x0000ffff, /* src_mask */
786 0x0000ffff, /* dst_mask */
787 FALSE), /* pcrel_offset */
788
789 /* A MIPS16 call through the global offset table. */
790 HOWTO (R_MIPS16_CALL16, /* type */
791 0, /* rightshift */
792 2, /* size (0 = byte, 1 = short, 2 = long) */
793 16, /* bitsize */
794 FALSE, /* pc_relative */
795 0, /* bitpos */
796 complain_overflow_dont, /* complain_on_overflow */
797 _bfd_mips_elf_generic_reloc, /* special_function */
798 "R_MIPS16_CALL16", /* name */
799 TRUE, /* partial_inplace */
800 0x0000ffff, /* src_mask */
801 0x0000ffff, /* dst_mask */
802 FALSE), /* pcrel_offset */
803
804 /* MIPS16 high 16 bits of symbol value. */
805 HOWTO (R_MIPS16_HI16, /* type */
806 16, /* rightshift */
807 2, /* size (0 = byte, 1 = short, 2 = long) */
808 16, /* bitsize */
809 FALSE, /* pc_relative */
810 0, /* bitpos */
811 complain_overflow_dont, /* complain_on_overflow */
812 _bfd_mips_elf_hi16_reloc, /* special_function */
813 "R_MIPS16_HI16", /* name */
814 TRUE, /* partial_inplace */
815 0x0000ffff, /* src_mask */
816 0x0000ffff, /* dst_mask */
817 FALSE), /* pcrel_offset */
818
819 /* MIPS16 low 16 bits of symbol value. */
820 HOWTO (R_MIPS16_LO16, /* type */
821 0, /* rightshift */
822 2, /* size (0 = byte, 1 = short, 2 = long) */
823 16, /* bitsize */
824 FALSE, /* pc_relative */
825 0, /* bitpos */
826 complain_overflow_dont, /* complain_on_overflow */
827 _bfd_mips_elf_lo16_reloc, /* special_function */
828 "R_MIPS16_LO16", /* name */
829 TRUE, /* partial_inplace */
830 0x0000ffff, /* src_mask */
831 0x0000ffff, /* dst_mask */
832 FALSE), /* pcrel_offset */
833 };
834
835 static reloc_howto_type elf_micromips_howto_table_rel[] =
836 {
837 EMPTY_HOWTO (130),
838 EMPTY_HOWTO (131),
839 EMPTY_HOWTO (132),
840
841 /* 26 bit jump address. */
842 HOWTO (R_MICROMIPS_26_S1, /* type */
843 1, /* rightshift */
844 2, /* size (0 = byte, 1 = short, 2 = long) */
845 26, /* bitsize */
846 FALSE, /* pc_relative */
847 0, /* bitpos */
848 complain_overflow_dont, /* complain_on_overflow */
849 /* This needs complex overflow
850 detection, because the upper four
851 bits must match the PC. */
852 _bfd_mips_elf_generic_reloc, /* special_function */
853 "R_MICROMIPS_26_S1", /* name */
854 TRUE, /* partial_inplace */
855 0x3ffffff, /* src_mask */
856 0x3ffffff, /* dst_mask */
857 FALSE), /* pcrel_offset */
858
859 /* High 16 bits of symbol value. */
860 HOWTO (R_MICROMIPS_HI16, /* type */
861 16, /* rightshift */
862 2, /* size (0 = byte, 1 = short, 2 = long) */
863 16, /* bitsize */
864 FALSE, /* pc_relative */
865 0, /* bitpos */
866 complain_overflow_dont, /* complain_on_overflow */
867 _bfd_mips_elf_hi16_reloc, /* special_function */
868 "R_MICROMIPS_HI16", /* name */
869 TRUE, /* partial_inplace */
870 0x0000ffff, /* src_mask */
871 0x0000ffff, /* dst_mask */
872 FALSE), /* pcrel_offset */
873
874 /* Low 16 bits of symbol value. */
875 HOWTO (R_MICROMIPS_LO16, /* type */
876 0, /* rightshift */
877 2, /* size (0 = byte, 1 = short, 2 = long) */
878 16, /* bitsize */
879 FALSE, /* pc_relative */
880 0, /* bitpos */
881 complain_overflow_dont, /* complain_on_overflow */
882 _bfd_mips_elf_lo16_reloc, /* special_function */
883 "R_MICROMIPS_LO16", /* name */
884 TRUE, /* partial_inplace */
885 0x0000ffff, /* src_mask */
886 0x0000ffff, /* dst_mask */
887 FALSE), /* pcrel_offset */
888
889 /* GP relative reference. */
890 HOWTO (R_MICROMIPS_GPREL16, /* type */
891 0, /* rightshift */
892 2, /* size (0 = byte, 1 = short, 2 = long) */
893 16, /* bitsize */
894 FALSE, /* pc_relative */
895 0, /* bitpos */
896 complain_overflow_signed, /* complain_on_overflow */
897 _bfd_mips_elf32_gprel16_reloc, /* special_function */
898 "R_MICROMIPS_GPREL16", /* name */
899 TRUE, /* partial_inplace */
900 0x0000ffff, /* src_mask */
901 0x0000ffff, /* dst_mask */
902 FALSE), /* pcrel_offset */
903
904 /* Reference to literal section. */
905 HOWTO (R_MICROMIPS_LITERAL, /* type */
906 0, /* rightshift */
907 2, /* size (0 = byte, 1 = short, 2 = long) */
908 16, /* bitsize */
909 FALSE, /* pc_relative */
910 0, /* bitpos */
911 complain_overflow_signed, /* complain_on_overflow */
912 _bfd_mips_elf32_gprel16_reloc, /* special_function */
913 "R_MICROMIPS_LITERAL", /* name */
914 TRUE, /* partial_inplace */
915 0x0000ffff, /* src_mask */
916 0x0000ffff, /* dst_mask */
917 FALSE), /* pcrel_offset */
918
919 /* Reference to global offset table. */
920 HOWTO (R_MICROMIPS_GOT16, /* type */
921 0, /* rightshift */
922 2, /* size (0 = byte, 1 = short, 2 = long) */
923 16, /* bitsize */
924 FALSE, /* pc_relative */
925 0, /* bitpos */
926 complain_overflow_signed, /* complain_on_overflow */
927 _bfd_mips_elf_got16_reloc, /* special_function */
928 "R_MICROMIPS_GOT16", /* name */
929 TRUE, /* partial_inplace */
930 0x0000ffff, /* src_mask */
931 0x0000ffff, /* dst_mask */
932 FALSE), /* pcrel_offset */
933
934 /* This is for microMIPS branches. */
935 HOWTO (R_MICROMIPS_PC7_S1, /* type */
936 1, /* rightshift */
937 1, /* size (0 = byte, 1 = short, 2 = long) */
938 7, /* bitsize */
939 TRUE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_signed, /* complain_on_overflow */
942 _bfd_mips_elf_generic_reloc, /* special_function */
943 "R_MICROMIPS_PC7_S1", /* name */
944 TRUE, /* partial_inplace */
945 0x0000007f, /* src_mask */
946 0x0000007f, /* dst_mask */
947 TRUE), /* pcrel_offset */
948
949 HOWTO (R_MICROMIPS_PC10_S1, /* type */
950 1, /* rightshift */
951 1, /* size (0 = byte, 1 = short, 2 = long) */
952 10, /* bitsize */
953 TRUE, /* pc_relative */
954 0, /* bitpos */
955 complain_overflow_signed, /* complain_on_overflow */
956 _bfd_mips_elf_generic_reloc, /* special_function */
957 "R_MICROMIPS_PC10_S1", /* name */
958 TRUE, /* partial_inplace */
959 0x000003ff, /* src_mask */
960 0x000003ff, /* dst_mask */
961 TRUE), /* pcrel_offset */
962
963 HOWTO (R_MICROMIPS_PC16_S1, /* type */
964 1, /* rightshift */
965 2, /* size (0 = byte, 1 = short, 2 = long) */
966 16, /* bitsize */
967 TRUE, /* pc_relative */
968 0, /* bitpos */
969 complain_overflow_signed, /* complain_on_overflow */
970 _bfd_mips_elf_generic_reloc, /* special_function */
971 "R_MICROMIPS_PC16_S1", /* name */
972 TRUE, /* partial_inplace */
973 0x0000ffff, /* src_mask */
974 0x0000ffff, /* dst_mask */
975 TRUE), /* pcrel_offset */
976
977 /* 16 bit call through global offset table. */
978 HOWTO (R_MICROMIPS_CALL16, /* type */
979 0, /* rightshift */
980 2, /* size (0 = byte, 1 = short, 2 = long) */
981 16, /* bitsize */
982 FALSE, /* pc_relative */
983 0, /* bitpos */
984 complain_overflow_signed, /* complain_on_overflow */
985 _bfd_mips_elf_generic_reloc, /* special_function */
986 "R_MICROMIPS_CALL16", /* name */
987 TRUE, /* partial_inplace */
988 0x0000ffff, /* src_mask */
989 0x0000ffff, /* dst_mask */
990 FALSE), /* pcrel_offset */
991
992 EMPTY_HOWTO (143),
993 EMPTY_HOWTO (144),
994
995 /* Displacement in the global offset table. */
996 HOWTO (R_MICROMIPS_GOT_DISP, /* type */
997 0, /* rightshift */
998 2, /* size (0 = byte, 1 = short, 2 = long) */
999 16, /* bitsize */
1000 FALSE, /* pc_relative */
1001 0, /* bitpos */
1002 complain_overflow_signed, /* complain_on_overflow */
1003 _bfd_mips_elf_generic_reloc, /* special_function */
1004 "R_MICROMIPS_GOT_DISP",/* name */
1005 TRUE, /* partial_inplace */
1006 0x0000ffff, /* src_mask */
1007 0x0000ffff, /* dst_mask */
1008 FALSE), /* pcrel_offset */
1009
1010 /* Displacement to page pointer in the global offset table. */
1011 HOWTO (R_MICROMIPS_GOT_PAGE, /* type */
1012 0, /* rightshift */
1013 2, /* size (0 = byte, 1 = short, 2 = long) */
1014 16, /* bitsize */
1015 FALSE, /* pc_relative */
1016 0, /* bitpos */
1017 complain_overflow_signed, /* complain_on_overflow */
1018 _bfd_mips_elf_generic_reloc, /* special_function */
1019 "R_MICROMIPS_GOT_PAGE",/* name */
1020 TRUE, /* partial_inplace */
1021 0x0000ffff, /* src_mask */
1022 0x0000ffff, /* dst_mask */
1023 FALSE), /* pcrel_offset */
1024
1025 /* Offset from page pointer in the global offset table. */
1026 HOWTO (R_MICROMIPS_GOT_OFST, /* type */
1027 0, /* rightshift */
1028 2, /* size (0 = byte, 1 = short, 2 = long) */
1029 16, /* bitsize */
1030 FALSE, /* pc_relative */
1031 0, /* bitpos */
1032 complain_overflow_signed, /* complain_on_overflow */
1033 _bfd_mips_elf_generic_reloc, /* special_function */
1034 "R_MICROMIPS_GOT_OFST",/* name */
1035 TRUE, /* partial_inplace */
1036 0x0000ffff, /* src_mask */
1037 0x0000ffff, /* dst_mask */
1038 FALSE), /* pcrel_offset */
1039
1040 /* High 16 bits of displacement in global offset table. */
1041 HOWTO (R_MICROMIPS_GOT_HI16, /* type */
1042 0, /* rightshift */
1043 2, /* size (0 = byte, 1 = short, 2 = long) */
1044 16, /* bitsize */
1045 FALSE, /* pc_relative */
1046 0, /* bitpos */
1047 complain_overflow_dont, /* complain_on_overflow */
1048 _bfd_mips_elf_generic_reloc, /* special_function */
1049 "R_MICROMIPS_GOT_HI16",/* name */
1050 TRUE, /* partial_inplace */
1051 0x0000ffff, /* src_mask */
1052 0x0000ffff, /* dst_mask */
1053 FALSE), /* pcrel_offset */
1054
1055 /* Low 16 bits of displacement in global offset table. */
1056 HOWTO (R_MICROMIPS_GOT_LO16, /* type */
1057 0, /* rightshift */
1058 2, /* size (0 = byte, 1 = short, 2 = long) */
1059 16, /* bitsize */
1060 FALSE, /* pc_relative */
1061 0, /* bitpos */
1062 complain_overflow_dont, /* complain_on_overflow */
1063 _bfd_mips_elf_generic_reloc, /* special_function */
1064 "R_MICROMIPS_GOT_LO16",/* name */
1065 TRUE, /* partial_inplace */
1066 0x0000ffff, /* src_mask */
1067 0x0000ffff, /* dst_mask */
1068 FALSE), /* pcrel_offset */
1069
1070 /* 64 bit subtraction. Used in the N32 ABI. */
1071 HOWTO (R_MICROMIPS_SUB, /* type */
1072 0, /* rightshift */
1073 4, /* size (0 = byte, 1 = short, 2 = long) */
1074 64, /* bitsize */
1075 FALSE, /* pc_relative */
1076 0, /* bitpos */
1077 complain_overflow_dont, /* complain_on_overflow */
1078 _bfd_mips_elf_generic_reloc, /* special_function */
1079 "R_MICROMIPS_SUB", /* name */
1080 TRUE, /* partial_inplace */
1081 MINUS_ONE, /* src_mask */
1082 MINUS_ONE, /* dst_mask */
1083 FALSE), /* pcrel_offset */
1084
1085 /* Get the higher value of a 64 bit addend. */
1086 HOWTO (R_MICROMIPS_HIGHER, /* type */
1087 0, /* rightshift */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1089 16, /* bitsize */
1090 FALSE, /* pc_relative */
1091 0, /* bitpos */
1092 complain_overflow_dont, /* complain_on_overflow */
1093 _bfd_mips_elf_generic_reloc, /* special_function */
1094 "R_MICROMIPS_HIGHER", /* name */
1095 TRUE, /* partial_inplace */
1096 0x0000ffff, /* src_mask */
1097 0x0000ffff, /* dst_mask */
1098 FALSE), /* pcrel_offset */
1099
1100 /* Get the highest value of a 64 bit addend. */
1101 HOWTO (R_MICROMIPS_HIGHEST, /* type */
1102 0, /* rightshift */
1103 2, /* size (0 = byte, 1 = short, 2 = long) */
1104 16, /* bitsize */
1105 FALSE, /* pc_relative */
1106 0, /* bitpos */
1107 complain_overflow_dont, /* complain_on_overflow */
1108 _bfd_mips_elf_generic_reloc, /* special_function */
1109 "R_MICROMIPS_HIGHEST", /* name */
1110 TRUE, /* partial_inplace */
1111 0x0000ffff, /* src_mask */
1112 0x0000ffff, /* dst_mask */
1113 FALSE), /* pcrel_offset */
1114
1115 /* High 16 bits of displacement in global offset table. */
1116 HOWTO (R_MICROMIPS_CALL_HI16, /* type */
1117 0, /* rightshift */
1118 2, /* size (0 = byte, 1 = short, 2 = long) */
1119 16, /* bitsize */
1120 FALSE, /* pc_relative */
1121 0, /* bitpos */
1122 complain_overflow_dont, /* complain_on_overflow */
1123 _bfd_mips_elf_generic_reloc, /* special_function */
1124 "R_MICROMIPS_CALL_HI16",/* name */
1125 TRUE, /* partial_inplace */
1126 0x0000ffff, /* src_mask */
1127 0x0000ffff, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1129
1130 /* Low 16 bits of displacement in global offset table. */
1131 HOWTO (R_MICROMIPS_CALL_LO16, /* type */
1132 0, /* rightshift */
1133 2, /* size (0 = byte, 1 = short, 2 = long) */
1134 16, /* bitsize */
1135 FALSE, /* pc_relative */
1136 0, /* bitpos */
1137 complain_overflow_dont, /* complain_on_overflow */
1138 _bfd_mips_elf_generic_reloc, /* special_function */
1139 "R_MICROMIPS_CALL_LO16",/* name */
1140 TRUE, /* partial_inplace */
1141 0x0000ffff, /* src_mask */
1142 0x0000ffff, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1144
1145 /* Section displacement. */
1146 HOWTO (R_MICROMIPS_SCN_DISP, /* type */
1147 0, /* rightshift */
1148 2, /* size (0 = byte, 1 = short, 2 = long) */
1149 32, /* bitsize */
1150 FALSE, /* pc_relative */
1151 0, /* bitpos */
1152 complain_overflow_dont, /* complain_on_overflow */
1153 _bfd_mips_elf_generic_reloc, /* special_function */
1154 "R_MICROMIPS_SCN_DISP",/* name */
1155 TRUE, /* partial_inplace */
1156 0xffffffff, /* src_mask */
1157 0xffffffff, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1159
1160 /* Protected jump conversion. This is an optimization hint. No
1161 relocation is required for correctness. */
1162 HOWTO (R_MICROMIPS_JALR, /* type */
1163 0, /* rightshift */
1164 2, /* size (0 = byte, 1 = short, 2 = long) */
1165 32, /* bitsize */
1166 FALSE, /* pc_relative */
1167 0, /* bitpos */
1168 complain_overflow_dont, /* complain_on_overflow */
1169 _bfd_mips_elf_generic_reloc, /* special_function */
1170 "R_MICROMIPS_JALR", /* name */
1171 FALSE, /* partial_inplace */
1172 0x00000000, /* src_mask */
1173 0x00000000, /* dst_mask */
1174 FALSE), /* pcrel_offset */
1175
1176 /* Low 16 bits of symbol value. Note that the high 16 bits of symbol values
1177 must be zero. This is used for relaxation. */
1178 HOWTO (R_MICROMIPS_HI0_LO16, /* type */
1179 0, /* rightshift */
1180 2, /* size (0 = byte, 1 = short, 2 = long) */
1181 16, /* bitsize */
1182 FALSE, /* pc_relative */
1183 0, /* bitpos */
1184 complain_overflow_dont, /* complain_on_overflow */
1185 _bfd_mips_elf_generic_reloc, /* special_function */
1186 "R_MICROMIPS_HI0_LO16",/* name */
1187 TRUE, /* partial_inplace */
1188 0x0000ffff, /* src_mask */
1189 0x0000ffff, /* dst_mask */
1190 FALSE), /* pcrel_offset */
1191
1192 EMPTY_HOWTO (158),
1193 EMPTY_HOWTO (159),
1194 EMPTY_HOWTO (160),
1195 EMPTY_HOWTO (161),
1196
1197 /* TLS general dynamic variable reference. */
1198 HOWTO (R_MICROMIPS_TLS_GD, /* type */
1199 0, /* rightshift */
1200 2, /* size (0 = byte, 1 = short, 2 = long) */
1201 16, /* bitsize */
1202 FALSE, /* pc_relative */
1203 0, /* bitpos */
1204 complain_overflow_signed, /* complain_on_overflow */
1205 _bfd_mips_elf_generic_reloc, /* special_function */
1206 "R_MICROMIPS_TLS_GD", /* name */
1207 TRUE, /* partial_inplace */
1208 0x0000ffff, /* src_mask */
1209 0x0000ffff, /* dst_mask */
1210 FALSE), /* pcrel_offset */
1211
1212 /* TLS local dynamic variable reference. */
1213 HOWTO (R_MICROMIPS_TLS_LDM, /* type */
1214 0, /* rightshift */
1215 2, /* size (0 = byte, 1 = short, 2 = long) */
1216 16, /* bitsize */
1217 FALSE, /* pc_relative */
1218 0, /* bitpos */
1219 complain_overflow_signed, /* complain_on_overflow */
1220 _bfd_mips_elf_generic_reloc, /* special_function */
1221 "R_MICROMIPS_TLS_LDM", /* name */
1222 TRUE, /* partial_inplace */
1223 0x0000ffff, /* src_mask */
1224 0x0000ffff, /* dst_mask */
1225 FALSE), /* pcrel_offset */
1226
1227 /* TLS local dynamic offset. */
1228 HOWTO (R_MICROMIPS_TLS_DTPREL_HI16, /* type */
1229 0, /* rightshift */
1230 2, /* size (0 = byte, 1 = short, 2 = long) */
1231 16, /* bitsize */
1232 FALSE, /* pc_relative */
1233 0, /* bitpos */
1234 complain_overflow_signed, /* complain_on_overflow */
1235 _bfd_mips_elf_generic_reloc, /* special_function */
1236 "R_MICROMIPS_TLS_DTPREL_HI16", /* name */
1237 TRUE, /* partial_inplace */
1238 0x0000ffff, /* src_mask */
1239 0x0000ffff, /* dst_mask */
1240 FALSE), /* pcrel_offset */
1241
1242 /* TLS local dynamic offset. */
1243 HOWTO (R_MICROMIPS_TLS_DTPREL_LO16, /* type */
1244 0, /* rightshift */
1245 2, /* size (0 = byte, 1 = short, 2 = long) */
1246 16, /* bitsize */
1247 FALSE, /* pc_relative */
1248 0, /* bitpos */
1249 complain_overflow_signed, /* complain_on_overflow */
1250 _bfd_mips_elf_generic_reloc, /* special_function */
1251 "R_MICROMIPS_TLS_DTPREL_LO16", /* name */
1252 TRUE, /* partial_inplace */
1253 0x0000ffff, /* src_mask */
1254 0x0000ffff, /* dst_mask */
1255 FALSE), /* pcrel_offset */
1256
1257 /* TLS thread pointer offset. */
1258 HOWTO (R_MICROMIPS_TLS_GOTTPREL, /* type */
1259 0, /* rightshift */
1260 2, /* size (0 = byte, 1 = short, 2 = long) */
1261 16, /* bitsize */
1262 FALSE, /* pc_relative */
1263 0, /* bitpos */
1264 complain_overflow_signed, /* complain_on_overflow */
1265 _bfd_mips_elf_generic_reloc, /* special_function */
1266 "R_MICROMIPS_TLS_GOTTPREL", /* name */
1267 TRUE, /* partial_inplace */
1268 0x0000ffff, /* src_mask */
1269 0x0000ffff, /* dst_mask */
1270 FALSE), /* pcrel_offset */
1271
1272 EMPTY_HOWTO (167),
1273 EMPTY_HOWTO (168),
1274
1275 /* TLS thread pointer offset. */
1276 HOWTO (R_MICROMIPS_TLS_TPREL_HI16, /* type */
1277 0, /* rightshift */
1278 2, /* size (0 = byte, 1 = short, 2 = long) */
1279 16, /* bitsize */
1280 FALSE, /* pc_relative */
1281 0, /* bitpos */
1282 complain_overflow_signed, /* complain_on_overflow */
1283 _bfd_mips_elf_generic_reloc, /* special_function */
1284 "R_MICROMIPS_TLS_TPREL_HI16", /* name */
1285 TRUE, /* partial_inplace */
1286 0x0000ffff, /* src_mask */
1287 0x0000ffff, /* dst_mask */
1288 FALSE), /* pcrel_offset */
1289
1290 /* TLS thread pointer offset. */
1291 HOWTO (R_MICROMIPS_TLS_TPREL_LO16, /* type */
1292 0, /* rightshift */
1293 2, /* size (0 = byte, 1 = short, 2 = long) */
1294 16, /* bitsize */
1295 FALSE, /* pc_relative */
1296 0, /* bitpos */
1297 complain_overflow_signed, /* complain_on_overflow */
1298 _bfd_mips_elf_generic_reloc, /* special_function */
1299 "R_MICROMIPS_TLS_TPREL_LO16", /* name */
1300 TRUE, /* partial_inplace */
1301 0x0000ffff, /* src_mask */
1302 0x0000ffff, /* dst_mask */
1303 FALSE), /* pcrel_offset */
1304
1305 EMPTY_HOWTO (171),
1306
1307 /* GP- and PC-relative relocations. */
1308 HOWTO (R_MICROMIPS_GPREL7_S2, /* type */
1309 2, /* rightshift */
1310 1, /* size (0 = byte, 1 = short, 2 = long) */
1311 7, /* bitsize */
1312 FALSE, /* pc_relative */
1313 0, /* bitpos */
1314 complain_overflow_signed, /* complain_on_overflow */
1315 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1316 "R_MICROMIPS_GPREL7_S2", /* name */
1317 TRUE, /* partial_inplace */
1318 0x0000007f, /* src_mask */
1319 0x0000007f, /* dst_mask */
1320 FALSE), /* pcrel_offset */
1321
1322 HOWTO (R_MICROMIPS_PC23_S2, /* type */
1323 2, /* rightshift */
1324 2, /* size (0 = byte, 1 = short, 2 = long) */
1325 23, /* bitsize */
1326 TRUE, /* pc_relative */
1327 0, /* bitpos */
1328 complain_overflow_signed, /* complain_on_overflow */
1329 _bfd_mips_elf_generic_reloc, /* special_function */
1330 "R_MICROMIPS_PC23_S2", /* name */
1331 TRUE, /* partial_inplace */
1332 0x007fffff, /* src_mask */
1333 0x007fffff, /* dst_mask */
1334 TRUE), /* pcrel_offset */
1335 };
1336
1337 /* 16 bit offset for pc-relative branches. */
1338 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1339 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1340 2, /* rightshift */
1341 2, /* size (0 = byte, 1 = short, 2 = long) */
1342 16, /* bitsize */
1343 TRUE, /* pc_relative */
1344 0, /* bitpos */
1345 complain_overflow_signed, /* complain_on_overflow */
1346 _bfd_mips_elf_generic_reloc, /* special_function */
1347 "R_MIPS_GNU_REL16_S2", /* name */
1348 TRUE, /* partial_inplace */
1349 0xffff, /* src_mask */
1350 0xffff, /* dst_mask */
1351 TRUE); /* pcrel_offset */
1352
1353 /* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
1354 It was co-opted by mips-linux for exception-handling data. It is no
1355 longer used, but should continue to be supported by the linker for
1356 backward compatibility. (GCC stopped using it in May, 2004.) */
1357 static reloc_howto_type elf_mips_gnu_pcrel32 =
1358 HOWTO (R_MIPS_PC32, /* type */
1359 0, /* rightshift */
1360 2, /* size (0 = byte, 1 = short, 2 = long) */
1361 32, /* bitsize */
1362 TRUE, /* pc_relative */
1363 0, /* bitpos */
1364 complain_overflow_signed, /* complain_on_overflow */
1365 _bfd_mips_elf_generic_reloc, /* special_function */
1366 "R_MIPS_PC32", /* name */
1367 TRUE, /* partial_inplace */
1368 0xffffffff, /* src_mask */
1369 0xffffffff, /* dst_mask */
1370 TRUE); /* pcrel_offset */
1371
1372 /* GNU extension to record C++ vtable hierarchy */
1373 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1374 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1375 0, /* rightshift */
1376 2, /* size (0 = byte, 1 = short, 2 = long) */
1377 0, /* bitsize */
1378 FALSE, /* pc_relative */
1379 0, /* bitpos */
1380 complain_overflow_dont, /* complain_on_overflow */
1381 NULL, /* special_function */
1382 "R_MIPS_GNU_VTINHERIT", /* name */
1383 FALSE, /* partial_inplace */
1384 0, /* src_mask */
1385 0, /* dst_mask */
1386 FALSE); /* pcrel_offset */
1387
1388 /* GNU extension to record C++ vtable member usage */
1389 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1390 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1391 0, /* rightshift */
1392 2, /* size (0 = byte, 1 = short, 2 = long) */
1393 0, /* bitsize */
1394 FALSE, /* pc_relative */
1395 0, /* bitpos */
1396 complain_overflow_dont, /* complain_on_overflow */
1397 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1398 "R_MIPS_GNU_VTENTRY", /* name */
1399 FALSE, /* partial_inplace */
1400 0, /* src_mask */
1401 0, /* dst_mask */
1402 FALSE); /* pcrel_offset */
1403
1404 /* Originally a VxWorks extension, but now used for other systems too. */
1405 static reloc_howto_type elf_mips_copy_howto =
1406 HOWTO (R_MIPS_COPY, /* type */
1407 0, /* rightshift */
1408 0, /* this one is variable size */
1409 0, /* bitsize */
1410 FALSE, /* pc_relative */
1411 0, /* bitpos */
1412 complain_overflow_bitfield, /* complain_on_overflow */
1413 bfd_elf_generic_reloc, /* special_function */
1414 "R_MIPS_COPY", /* name */
1415 FALSE, /* partial_inplace */
1416 0x0, /* src_mask */
1417 0x0, /* dst_mask */
1418 FALSE); /* pcrel_offset */
1419
1420 /* Originally a VxWorks extension, but now used for other systems too. */
1421 static reloc_howto_type elf_mips_jump_slot_howto =
1422 HOWTO (R_MIPS_JUMP_SLOT, /* type */
1423 0, /* rightshift */
1424 2, /* size (0 = byte, 1 = short, 2 = long) */
1425 32, /* bitsize */
1426 FALSE, /* pc_relative */
1427 0, /* bitpos */
1428 complain_overflow_bitfield, /* complain_on_overflow */
1429 bfd_elf_generic_reloc, /* special_function */
1430 "R_MIPS_JUMP_SLOT", /* name */
1431 FALSE, /* partial_inplace */
1432 0x0, /* src_mask */
1433 0x0, /* dst_mask */
1434 FALSE); /* pcrel_offset */
1435
1436 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1437 dangerous relocation. */
1438
1439 static bfd_boolean
1440 mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1441 {
1442 unsigned int count;
1443 asymbol **sym;
1444 unsigned int i;
1445
1446 /* If we've already figured out what GP will be, just return it. */
1447 *pgp = _bfd_get_gp_value (output_bfd);
1448 if (*pgp)
1449 return TRUE;
1450
1451 count = bfd_get_symcount (output_bfd);
1452 sym = bfd_get_outsymbols (output_bfd);
1453
1454 /* The linker script will have created a symbol named `_gp' with the
1455 appropriate value. */
1456 if (sym == NULL)
1457 i = count;
1458 else
1459 {
1460 for (i = 0; i < count; i++, sym++)
1461 {
1462 register const char *name;
1463
1464 name = bfd_asymbol_name (*sym);
1465 if (*name == '_' && strcmp (name, "_gp") == 0)
1466 {
1467 *pgp = bfd_asymbol_value (*sym);
1468 _bfd_set_gp_value (output_bfd, *pgp);
1469 break;
1470 }
1471 }
1472 }
1473
1474 if (i >= count)
1475 {
1476 /* Only get the error once. */
1477 *pgp = 4;
1478 _bfd_set_gp_value (output_bfd, *pgp);
1479 return FALSE;
1480 }
1481
1482 return TRUE;
1483 }
1484
1485 /* We have to figure out the gp value, so that we can adjust the
1486 symbol value correctly. We look up the symbol _gp in the output
1487 BFD. If we can't find it, we're stuck. We cache it in the ELF
1488 target data. We don't need to adjust the symbol value for an
1489 external symbol if we are producing relocatable output. */
1490
1491 static bfd_reloc_status_type
1492 mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1493 char **error_message, bfd_vma *pgp)
1494 {
1495 if (bfd_is_und_section (symbol->section)
1496 && ! relocatable)
1497 {
1498 *pgp = 0;
1499 return bfd_reloc_undefined;
1500 }
1501
1502 *pgp = _bfd_get_gp_value (output_bfd);
1503 if (*pgp == 0
1504 && (! relocatable
1505 || (symbol->flags & BSF_SECTION_SYM) != 0))
1506 {
1507 if (relocatable)
1508 {
1509 /* Make up a value. */
1510 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
1511 _bfd_set_gp_value (output_bfd, *pgp);
1512 }
1513 else if (!mips_elf_assign_gp (output_bfd, pgp))
1514 {
1515 *error_message =
1516 (char *) _("GP relative relocation when _gp not defined");
1517 return bfd_reloc_dangerous;
1518 }
1519 }
1520
1521 return bfd_reloc_ok;
1522 }
1523
1524 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1525 become the offset from the gp register. This function also handles
1526 R_MIPS_LITERAL relocations, although those can be handled more
1527 cleverly because the entries in the .lit8 and .lit4 sections can be
1528 merged. */
1529
1530 bfd_reloc_status_type
1531 _bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry,
1532 asymbol *symbol, void *data,
1533 asection *input_section, bfd *output_bfd,
1534 char **error_message)
1535 {
1536 bfd_boolean relocatable;
1537 bfd_reloc_status_type ret;
1538 bfd_byte *location;
1539 bfd_vma gp;
1540
1541 /* R_MIPS_LITERAL/R_MICROMIPS_LITERAL relocations are defined for local
1542 symbols only. */
1543 if (literal_reloc_p (reloc_entry->howto->type)
1544 && output_bfd != NULL
1545 && (symbol->flags & BSF_SECTION_SYM) == 0
1546 && (symbol->flags & BSF_LOCAL) != 0)
1547 {
1548 *error_message = (char *)
1549 _("literal relocation occurs for an external symbol");
1550 return bfd_reloc_outofrange;
1551 }
1552
1553 if (output_bfd != NULL)
1554 relocatable = TRUE;
1555 else
1556 {
1557 relocatable = FALSE;
1558 output_bfd = symbol->section->output_section->owner;
1559 }
1560
1561 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1562 &gp);
1563 if (ret != bfd_reloc_ok)
1564 return ret;
1565
1566 location = (bfd_byte *) data + reloc_entry->address;
1567 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1568 location);
1569 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1570 input_section, relocatable,
1571 data, gp);
1572 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1573 location);
1574
1575 return ret;
1576 }
1577
1578 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
1579 become the offset from the gp register. */
1580
1581 static bfd_reloc_status_type
1582 mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1583 void *data, asection *input_section, bfd *output_bfd,
1584 char **error_message)
1585 {
1586 bfd_boolean relocatable;
1587 bfd_reloc_status_type ret;
1588 bfd_vma gp;
1589
1590 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1591 if (output_bfd != NULL
1592 && (symbol->flags & BSF_SECTION_SYM) == 0
1593 && (symbol->flags & BSF_LOCAL) != 0)
1594 {
1595 *error_message = (char *)
1596 _("32bits gp relative relocation occurs for an external symbol");
1597 return bfd_reloc_outofrange;
1598 }
1599
1600 if (output_bfd != NULL)
1601 relocatable = TRUE;
1602 else
1603 {
1604 relocatable = FALSE;
1605 output_bfd = symbol->section->output_section->owner;
1606 }
1607
1608 ret = mips_elf_final_gp (output_bfd, symbol, relocatable,
1609 error_message, &gp);
1610 if (ret != bfd_reloc_ok)
1611 return ret;
1612
1613 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
1614 relocatable, data, gp);
1615 }
1616
1617 static bfd_reloc_status_type
1618 gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
1619 asection *input_section, bfd_boolean relocatable,
1620 void *data, bfd_vma gp)
1621 {
1622 bfd_vma relocation;
1623 bfd_vma val;
1624
1625 if (bfd_is_com_section (symbol->section))
1626 relocation = 0;
1627 else
1628 relocation = symbol->value;
1629
1630 relocation += symbol->section->output_section->vma;
1631 relocation += symbol->section->output_offset;
1632
1633 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1634 return bfd_reloc_outofrange;
1635
1636 /* Set val to the offset into the section or symbol. */
1637 val = reloc_entry->addend;
1638
1639 if (reloc_entry->howto->partial_inplace)
1640 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
1641
1642 /* Adjust val for the final section location and GP value. If we
1643 are producing relocatable output, we don't want to do this for
1644 an external symbol. */
1645 if (! relocatable
1646 || (symbol->flags & BSF_SECTION_SYM) != 0)
1647 val += relocation - gp;
1648
1649 if (reloc_entry->howto->partial_inplace)
1650 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
1651 else
1652 reloc_entry->addend = val;
1653
1654 if (relocatable)
1655 reloc_entry->address += input_section->output_offset;
1656
1657 return bfd_reloc_ok;
1658 }
1659
1660 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1661 generated when addresses are 64 bits. The upper 32 bits are a simple
1662 sign extension. */
1663
1664 static bfd_reloc_status_type
1665 mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry,
1666 asymbol *symbol ATTRIBUTE_UNUSED,
1667 void *data, asection *input_section,
1668 bfd *output_bfd, char **error_message)
1669 {
1670 bfd_reloc_status_type r;
1671 arelent reloc32;
1672 unsigned long val;
1673 bfd_size_type addr;
1674
1675 /* Do a normal 32 bit relocation on the lower 32 bits. */
1676 reloc32 = *reloc_entry;
1677 if (bfd_big_endian (abfd))
1678 reloc32.address += 4;
1679 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
1680 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
1681 output_bfd, error_message);
1682
1683 /* Sign extend into the upper 32 bits. */
1684 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
1685 if ((val & 0x80000000) != 0)
1686 val = 0xffffffff;
1687 else
1688 val = 0;
1689 addr = reloc_entry->address;
1690 if (bfd_little_endian (abfd))
1691 addr += 4;
1692 bfd_put_32 (abfd, val, (bfd_byte *) data + addr);
1693
1694 return r;
1695 }
1696
1697 /* Handle a mips16 GP relative reloc. */
1698
1699 static bfd_reloc_status_type
1700 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1701 void *data, asection *input_section, bfd *output_bfd,
1702 char **error_message)
1703 {
1704 bfd_boolean relocatable;
1705 bfd_reloc_status_type ret;
1706 bfd_byte *location;
1707 bfd_vma gp;
1708
1709 /* If we're relocating, and this is an external symbol, we don't want
1710 to change anything. */
1711 if (output_bfd != NULL
1712 && (symbol->flags & BSF_SECTION_SYM) == 0
1713 && (symbol->flags & BSF_LOCAL) != 0)
1714 {
1715 reloc_entry->address += input_section->output_offset;
1716 return bfd_reloc_ok;
1717 }
1718
1719 if (output_bfd != NULL)
1720 relocatable = TRUE;
1721 else
1722 {
1723 relocatable = FALSE;
1724 output_bfd = symbol->section->output_section->owner;
1725 }
1726
1727 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1728 &gp);
1729 if (ret != bfd_reloc_ok)
1730 return ret;
1731
1732 location = (bfd_byte *) data + reloc_entry->address;
1733 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1734 location);
1735 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1736 input_section, relocatable,
1737 data, gp);
1738 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1739 location);
1740
1741 return ret;
1742 }
1743
1744 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
1745
1746 struct elf_reloc_map {
1747 bfd_reloc_code_real_type bfd_val;
1748 enum elf_mips_reloc_type elf_val;
1749 };
1750
1751 static const struct elf_reloc_map mips_reloc_map[] =
1752 {
1753 { BFD_RELOC_NONE, R_MIPS_NONE },
1754 { BFD_RELOC_16, R_MIPS_16 },
1755 { BFD_RELOC_32, R_MIPS_32 },
1756 /* There is no BFD reloc for R_MIPS_REL32. */
1757 { BFD_RELOC_64, R_MIPS_64 },
1758 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
1759 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
1760 { BFD_RELOC_LO16, R_MIPS_LO16 },
1761 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
1762 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
1763 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
1764 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
1765 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
1766 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
1767 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
1768 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
1769 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
1770 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
1771 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
1772 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
1773 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
1774 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
1775 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
1776 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
1777 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
1778 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
1779 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
1780 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
1781 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
1782 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
1783 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
1784 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
1785 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
1786 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
1787 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
1788 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
1789 };
1790
1791 static const struct elf_reloc_map mips16_reloc_map[] =
1792 {
1793 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
1794 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
1795 { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min },
1796 { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min },
1797 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
1798 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
1799 };
1800
1801 static const struct elf_reloc_map micromips_reloc_map[] =
1802 {
1803 { BFD_RELOC_MICROMIPS_JMP, R_MICROMIPS_26_S1 - R_MICROMIPS_min },
1804 { BFD_RELOC_MICROMIPS_HI16_S, R_MICROMIPS_HI16 - R_MICROMIPS_min },
1805 { BFD_RELOC_MICROMIPS_LO16, R_MICROMIPS_LO16 - R_MICROMIPS_min },
1806 { BFD_RELOC_MICROMIPS_GPREL16, R_MICROMIPS_GPREL16 - R_MICROMIPS_min },
1807 { BFD_RELOC_MICROMIPS_LITERAL, R_MICROMIPS_LITERAL - R_MICROMIPS_min },
1808 { BFD_RELOC_MICROMIPS_GOT16, R_MICROMIPS_GOT16 - R_MICROMIPS_min },
1809 { BFD_RELOC_MICROMIPS_7_PCREL_S1, R_MICROMIPS_PC7_S1 - R_MICROMIPS_min },
1810 { BFD_RELOC_MICROMIPS_10_PCREL_S1, R_MICROMIPS_PC10_S1 - R_MICROMIPS_min },
1811 { BFD_RELOC_MICROMIPS_16_PCREL_S1, R_MICROMIPS_PC16_S1 - R_MICROMIPS_min },
1812 { BFD_RELOC_MICROMIPS_CALL16, R_MICROMIPS_CALL16 - R_MICROMIPS_min },
1813 { BFD_RELOC_MICROMIPS_GOT_DISP, R_MICROMIPS_GOT_DISP - R_MICROMIPS_min },
1814 { BFD_RELOC_MICROMIPS_GOT_PAGE, R_MICROMIPS_GOT_PAGE - R_MICROMIPS_min },
1815 { BFD_RELOC_MICROMIPS_GOT_OFST, R_MICROMIPS_GOT_OFST - R_MICROMIPS_min },
1816 { BFD_RELOC_MICROMIPS_GOT_HI16, R_MICROMIPS_GOT_HI16 - R_MICROMIPS_min },
1817 { BFD_RELOC_MICROMIPS_GOT_LO16, R_MICROMIPS_GOT_LO16 - R_MICROMIPS_min },
1818 { BFD_RELOC_MICROMIPS_SUB, R_MICROMIPS_SUB - R_MICROMIPS_min },
1819 { BFD_RELOC_MICROMIPS_HIGHER, R_MICROMIPS_HIGHER - R_MICROMIPS_min },
1820 { BFD_RELOC_MICROMIPS_HIGHEST, R_MICROMIPS_HIGHEST - R_MICROMIPS_min },
1821 { BFD_RELOC_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_HI16 - R_MICROMIPS_min },
1822 { BFD_RELOC_MICROMIPS_CALL_LO16, R_MICROMIPS_CALL_LO16 - R_MICROMIPS_min },
1823 { BFD_RELOC_MICROMIPS_SCN_DISP, R_MICROMIPS_SCN_DISP - R_MICROMIPS_min },
1824 { BFD_RELOC_MICROMIPS_JALR, R_MICROMIPS_JALR - R_MICROMIPS_min },
1825 /* There is no BFD reloc for R_MICROMIPS_HI0_LO16. */
1826 { BFD_RELOC_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_GD - R_MICROMIPS_min },
1827 { BFD_RELOC_MICROMIPS_TLS_LDM, R_MICROMIPS_TLS_LDM - R_MICROMIPS_min },
1828 { BFD_RELOC_MICROMIPS_TLS_DTPREL_HI16,
1829 R_MICROMIPS_TLS_DTPREL_HI16 - R_MICROMIPS_min },
1830 { BFD_RELOC_MICROMIPS_TLS_DTPREL_LO16,
1831 R_MICROMIPS_TLS_DTPREL_LO16 - R_MICROMIPS_min },
1832 { BFD_RELOC_MICROMIPS_TLS_GOTTPREL,
1833 R_MICROMIPS_TLS_GOTTPREL - R_MICROMIPS_min },
1834 { BFD_RELOC_MICROMIPS_TLS_TPREL_HI16,
1835 R_MICROMIPS_TLS_TPREL_HI16 - R_MICROMIPS_min },
1836 { BFD_RELOC_MICROMIPS_TLS_TPREL_LO16,
1837 R_MICROMIPS_TLS_TPREL_LO16 - R_MICROMIPS_min },
1838 /* There is no BFD reloc for R_MICROMIPS_GPREL7_S2. */
1839 /* There is no BFD reloc for R_MICROMIPS_PC23_S2. */
1840 };
1841
1842 /* Given a BFD reloc type, return a howto structure. */
1843
1844 static reloc_howto_type *
1845 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1846 {
1847 unsigned int i;
1848 reloc_howto_type *howto_table = elf_mips_howto_table_rel;
1849 reloc_howto_type *howto16_table = elf_mips16_howto_table_rel;
1850 reloc_howto_type *howto_micromips_table = elf_micromips_howto_table_rel;
1851
1852 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
1853 i++)
1854 {
1855 if (mips_reloc_map[i].bfd_val == code)
1856 return &howto_table[(int) mips_reloc_map[i].elf_val];
1857 }
1858
1859 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
1860 i++)
1861 {
1862 if (mips16_reloc_map[i].bfd_val == code)
1863 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
1864 }
1865
1866 for (i = 0; i < sizeof (micromips_reloc_map) / sizeof (struct elf_reloc_map);
1867 i++)
1868 {
1869 if (micromips_reloc_map[i].bfd_val == code)
1870 return &howto_micromips_table[(int) micromips_reloc_map[i].elf_val];
1871 }
1872
1873 switch (code)
1874 {
1875 default:
1876 bfd_set_error (bfd_error_bad_value);
1877 return NULL;
1878
1879 case BFD_RELOC_CTOR:
1880 /* We need to handle BFD_RELOC_CTOR specially.
1881 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
1882 size of addresses of the ABI. */
1883 if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64
1884 | E_MIPS_ABI_EABI64)) != 0)
1885 return &elf_mips_ctor64_howto;
1886 else
1887 return &howto_table[(int) R_MIPS_32];
1888
1889 case BFD_RELOC_VTABLE_INHERIT:
1890 return &elf_mips_gnu_vtinherit_howto;
1891 case BFD_RELOC_VTABLE_ENTRY:
1892 return &elf_mips_gnu_vtentry_howto;
1893 case BFD_RELOC_32_PCREL:
1894 return &elf_mips_gnu_pcrel32;
1895 case BFD_RELOC_MIPS_COPY:
1896 return &elf_mips_copy_howto;
1897 case BFD_RELOC_MIPS_JUMP_SLOT:
1898 return &elf_mips_jump_slot_howto;
1899 }
1900 }
1901
1902 static reloc_howto_type *
1903 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1904 const char *r_name)
1905 {
1906 unsigned int i;
1907
1908 for (i = 0;
1909 i < (sizeof (elf_mips_howto_table_rel)
1910 / sizeof (elf_mips_howto_table_rel[0]));
1911 i++)
1912 if (elf_mips_howto_table_rel[i].name != NULL
1913 && strcasecmp (elf_mips_howto_table_rel[i].name, r_name) == 0)
1914 return &elf_mips_howto_table_rel[i];
1915
1916 for (i = 0;
1917 i < (sizeof (elf_mips16_howto_table_rel)
1918 / sizeof (elf_mips16_howto_table_rel[0]));
1919 i++)
1920 if (elf_mips16_howto_table_rel[i].name != NULL
1921 && strcasecmp (elf_mips16_howto_table_rel[i].name, r_name) == 0)
1922 return &elf_mips16_howto_table_rel[i];
1923
1924 for (i = 0;
1925 i < (sizeof (elf_micromips_howto_table_rel)
1926 / sizeof (elf_micromips_howto_table_rel[0]));
1927 i++)
1928 if (elf_micromips_howto_table_rel[i].name != NULL
1929 && strcasecmp (elf_micromips_howto_table_rel[i].name, r_name) == 0)
1930 return &elf_micromips_howto_table_rel[i];
1931
1932 if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0)
1933 return &elf_mips_gnu_pcrel32;
1934 if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
1935 return &elf_mips_gnu_rel16_s2;
1936 if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
1937 return &elf_mips_gnu_vtinherit_howto;
1938 if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
1939 return &elf_mips_gnu_vtentry_howto;
1940 if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0)
1941 return &elf_mips_copy_howto;
1942 if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
1943 return &elf_mips_jump_slot_howto;
1944
1945 return NULL;
1946 }
1947
1948 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
1949
1950 static reloc_howto_type *
1951 mips_elf32_rtype_to_howto (unsigned int r_type,
1952 bfd_boolean rela_p ATTRIBUTE_UNUSED)
1953 {
1954 switch (r_type)
1955 {
1956 case R_MIPS_GNU_VTINHERIT:
1957 return &elf_mips_gnu_vtinherit_howto;
1958 case R_MIPS_GNU_VTENTRY:
1959 return &elf_mips_gnu_vtentry_howto;
1960 case R_MIPS_GNU_REL16_S2:
1961 return &elf_mips_gnu_rel16_s2;
1962 case R_MIPS_PC32:
1963 return &elf_mips_gnu_pcrel32;
1964 case R_MIPS_COPY:
1965 return &elf_mips_copy_howto;
1966 case R_MIPS_JUMP_SLOT:
1967 return &elf_mips_jump_slot_howto;
1968 default:
1969 if (r_type >= R_MICROMIPS_min && r_type < R_MICROMIPS_max)
1970 return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min];
1971 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
1972 return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
1973 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
1974 return &elf_mips_howto_table_rel[r_type];
1975 }
1976 }
1977
1978 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
1979
1980 static void
1981 mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
1982 {
1983 const struct elf_backend_data *bed;
1984 unsigned int r_type;
1985
1986 r_type = ELF32_R_TYPE (dst->r_info);
1987 bed = get_elf_backend_data (abfd);
1988 cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE);
1989
1990 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
1991 value for the object file. We get the addend now, rather than
1992 when we do the relocation, because the symbol manipulations done
1993 by the linker may cause us to lose track of the input BFD. */
1994 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
1995 && (gprel16_reloc_p (r_type) || literal_reloc_p (r_type)))
1996 cache_ptr->addend = elf_gp (abfd);
1997 }
1998
1999 /* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */
2000
2001 static void
2002 mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2003 {
2004 mips_info_to_howto_rel (abfd, cache_ptr, dst);
2005
2006 /* If we ever need to do any extra processing with dst->r_addend
2007 (the field omitted in an Elf_Internal_Rel) we can do it here. */
2008 }
2009 \f
2010 /* Determine whether a symbol is global for the purposes of splitting
2011 the symbol table into global symbols and local symbols. At least
2012 on Irix 5, this split must be between section symbols and all other
2013 symbols. On most ELF targets the split is between static symbols
2014 and externally visible symbols. */
2015
2016 static bfd_boolean
2017 mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym)
2018 {
2019 if (SGI_COMPAT (abfd))
2020 return (sym->flags & BSF_SECTION_SYM) == 0;
2021 else
2022 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0
2023 || bfd_is_und_section (bfd_get_section (sym))
2024 || bfd_is_com_section (bfd_get_section (sym)));
2025 }
2026 \f
2027 /* Set the right machine number for a MIPS ELF file. */
2028
2029 static bfd_boolean
2030 mips_elf32_object_p (bfd *abfd)
2031 {
2032 unsigned long mach;
2033
2034 /* Irix 5 and 6 are broken. Object file symbol tables are not always
2035 sorted correctly such that local symbols precede global symbols,
2036 and the sh_info field in the symbol table is not always right. */
2037 if (SGI_COMPAT (abfd))
2038 elf_bad_symtab (abfd) = TRUE;
2039
2040 if (ABI_N32_P (abfd))
2041 return FALSE;
2042
2043 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
2044 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
2045
2046 return TRUE;
2047 }
2048 \f
2049 /* MIPS ELF local labels start with '$', not 'L'. */
2050
2051 static bfd_boolean
2052 mips_elf_is_local_label_name (bfd *abfd, const char *name)
2053 {
2054 if (name[0] == '$')
2055 return TRUE;
2056
2057 /* On Irix 6, the labels go back to starting with '.', so we accept
2058 the generic ELF local label syntax as well. */
2059 return _bfd_elf_is_local_label_name (abfd, name);
2060 }
2061 \f
2062 /* Support for core dump NOTE sections. */
2063 static bfd_boolean
2064 elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2065 {
2066 int offset;
2067 unsigned int size;
2068
2069 switch (note->descsz)
2070 {
2071 default:
2072 return FALSE;
2073
2074 case 256: /* Linux/MIPS */
2075 /* pr_cursig */
2076 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2077
2078 /* pr_pid */
2079 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
2080
2081 /* pr_reg */
2082 offset = 72;
2083 size = 180;
2084
2085 break;
2086 }
2087
2088 /* Make a ".reg/999" section. */
2089 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2090 size, note->descpos + offset);
2091 }
2092
2093 static bfd_boolean
2094 elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2095 {
2096 switch (note->descsz)
2097 {
2098 default:
2099 return FALSE;
2100
2101 case 128: /* Linux/MIPS elf_prpsinfo */
2102 elf_tdata (abfd)->core_program
2103 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2104 elf_tdata (abfd)->core_command
2105 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2106 }
2107
2108 /* Note that for some reason, a spurious space is tacked
2109 onto the end of the args in some (at least one anyway)
2110 implementations, so strip it off if it exists. */
2111
2112 {
2113 char *command = elf_tdata (abfd)->core_command;
2114 int n = strlen (command);
2115
2116 if (0 < n && command[n - 1] == ' ')
2117 command[n - 1] = '\0';
2118 }
2119
2120 return TRUE;
2121 }
2122 \f
2123 /* Depending on the target vector we generate some version of Irix
2124 executables or "normal" MIPS ELF ABI executables. */
2125 static irix_compat_t
2126 elf32_mips_irix_compat (bfd *abfd)
2127 {
2128 if ((abfd->xvec == &bfd_elf32_bigmips_vec)
2129 || (abfd->xvec == &bfd_elf32_littlemips_vec))
2130 return ict_irix5;
2131 else
2132 return ict_none;
2133 }
2134 \f
2135 /* ECOFF swapping routines. These are used when dealing with the
2136 .mdebug section, which is in the ECOFF debugging format. */
2137 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
2138 /* Symbol table magic number. */
2139 magicSym,
2140 /* Alignment of debugging information. E.g., 4. */
2141 4,
2142 /* Sizes of external symbolic information. */
2143 sizeof (struct hdr_ext),
2144 sizeof (struct dnr_ext),
2145 sizeof (struct pdr_ext),
2146 sizeof (struct sym_ext),
2147 sizeof (struct opt_ext),
2148 sizeof (struct fdr_ext),
2149 sizeof (struct rfd_ext),
2150 sizeof (struct ext_ext),
2151 /* Functions to swap in external symbolic data. */
2152 ecoff_swap_hdr_in,
2153 ecoff_swap_dnr_in,
2154 ecoff_swap_pdr_in,
2155 ecoff_swap_sym_in,
2156 ecoff_swap_opt_in,
2157 ecoff_swap_fdr_in,
2158 ecoff_swap_rfd_in,
2159 ecoff_swap_ext_in,
2160 _bfd_ecoff_swap_tir_in,
2161 _bfd_ecoff_swap_rndx_in,
2162 /* Functions to swap out external symbolic data. */
2163 ecoff_swap_hdr_out,
2164 ecoff_swap_dnr_out,
2165 ecoff_swap_pdr_out,
2166 ecoff_swap_sym_out,
2167 ecoff_swap_opt_out,
2168 ecoff_swap_fdr_out,
2169 ecoff_swap_rfd_out,
2170 ecoff_swap_ext_out,
2171 _bfd_ecoff_swap_tir_out,
2172 _bfd_ecoff_swap_rndx_out,
2173 /* Function to read in symbolic data. */
2174 _bfd_mips_elf_read_ecoff_info
2175 };
2176 \f
2177 #define ELF_ARCH bfd_arch_mips
2178 #define ELF_TARGET_ID MIPS_ELF_DATA
2179 #define ELF_MACHINE_CODE EM_MIPS
2180
2181 #define elf_backend_collect TRUE
2182 #define elf_backend_type_change_ok TRUE
2183 #define elf_backend_can_gc_sections TRUE
2184 #define elf_info_to_howto mips_info_to_howto_rela
2185 #define elf_info_to_howto_rel mips_info_to_howto_rel
2186 #define elf_backend_sym_is_global mips_elf_sym_is_global
2187 #define elf_backend_object_p mips_elf32_object_p
2188 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
2189 #define elf_backend_section_processing _bfd_mips_elf_section_processing
2190 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
2191 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
2192 #define elf_backend_section_from_bfd_section \
2193 _bfd_mips_elf_section_from_bfd_section
2194 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
2195 #define elf_backend_link_output_symbol_hook \
2196 _bfd_mips_elf_link_output_symbol_hook
2197 #define elf_backend_create_dynamic_sections \
2198 _bfd_mips_elf_create_dynamic_sections
2199 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
2200 #define elf_backend_merge_symbol_attribute \
2201 _bfd_mips_elf_merge_symbol_attribute
2202 #define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
2203 #define elf_backend_adjust_dynamic_symbol \
2204 _bfd_mips_elf_adjust_dynamic_symbol
2205 #define elf_backend_always_size_sections \
2206 _bfd_mips_elf_always_size_sections
2207 #define elf_backend_size_dynamic_sections \
2208 _bfd_mips_elf_size_dynamic_sections
2209 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
2210 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
2211 #define elf_backend_finish_dynamic_symbol \
2212 _bfd_mips_elf_finish_dynamic_symbol
2213 #define elf_backend_finish_dynamic_sections \
2214 _bfd_mips_elf_finish_dynamic_sections
2215 #define elf_backend_final_write_processing \
2216 _bfd_mips_elf_final_write_processing
2217 #define elf_backend_additional_program_headers \
2218 _bfd_mips_elf_additional_program_headers
2219 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
2220 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
2221 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
2222 #define elf_backend_copy_indirect_symbol \
2223 _bfd_mips_elf_copy_indirect_symbol
2224 #define elf_backend_grok_prstatus elf32_mips_grok_prstatus
2225 #define elf_backend_grok_psinfo elf32_mips_grok_psinfo
2226 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
2227
2228 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
2229 #define elf_backend_may_use_rel_p 1
2230 #define elf_backend_may_use_rela_p 0
2231 #define elf_backend_default_use_rela_p 0
2232 #define elf_backend_sign_extend_vma TRUE
2233 #define elf_backend_plt_readonly 1
2234 #define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
2235
2236 #define elf_backend_discard_info _bfd_mips_elf_discard_info
2237 #define elf_backend_ignore_discarded_relocs \
2238 _bfd_mips_elf_ignore_discarded_relocs
2239 #define elf_backend_write_section _bfd_mips_elf_write_section
2240 #define elf_backend_mips_irix_compat elf32_mips_irix_compat
2241 #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
2242 #define bfd_elf32_bfd_is_local_label_name \
2243 mips_elf_is_local_label_name
2244 #define bfd_elf32_bfd_is_target_special_symbol \
2245 _bfd_mips_elf_is_target_special_symbol
2246 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
2247 #define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
2248 #define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
2249 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
2250 #define bfd_elf32_bfd_get_relocated_section_contents \
2251 _bfd_elf_mips_get_relocated_section_contents
2252 #define bfd_elf32_bfd_link_hash_table_create \
2253 _bfd_mips_elf_link_hash_table_create
2254 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
2255 #define bfd_elf32_bfd_merge_private_bfd_data \
2256 _bfd_mips_elf_merge_private_bfd_data
2257 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
2258 #define bfd_elf32_bfd_print_private_bfd_data \
2259 _bfd_mips_elf_print_private_bfd_data
2260 #define bfd_elf32_bfd_relax_section _bfd_mips_elf_relax_section
2261
2262 /* Support for SGI-ish mips targets. */
2263 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
2264 #define TARGET_LITTLE_NAME "elf32-littlemips"
2265 #define TARGET_BIG_SYM bfd_elf32_bigmips_vec
2266 #define TARGET_BIG_NAME "elf32-bigmips"
2267
2268 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
2269 a value of 0x1000, and we are compatible. */
2270 #define ELF_MAXPAGESIZE 0x1000
2271 #define ELF_COMMONPAGESIZE 0x1000
2272
2273 #include "elf32-target.h"
2274
2275 /* Support for traditional mips targets. */
2276 #undef TARGET_LITTLE_SYM
2277 #undef TARGET_LITTLE_NAME
2278 #undef TARGET_BIG_SYM
2279 #undef TARGET_BIG_NAME
2280
2281 #undef ELF_MAXPAGESIZE
2282 #undef ELF_COMMONPAGESIZE
2283
2284 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
2285 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
2286 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
2287 #define TARGET_BIG_NAME "elf32-tradbigmips"
2288
2289 /* The MIPS ABI says at Page 5-1:
2290 Virtual addresses and file offsets for MIPS segments are congruent
2291 modulo 64 KByte (0x10000) or larger powers of 2. Because 64 KBytes
2292 is the maximum page size, the files are suitable for paging
2293 regardless of physical page size. */
2294 #define ELF_MAXPAGESIZE 0x10000
2295 #define ELF_COMMONPAGESIZE 0x1000
2296 #define elf32_bed elf32_tradbed
2297
2298 /* Include the target file again for this target. */
2299 #include "elf32-target.h"
2300
2301 /* FreeBSD support. */
2302
2303 #undef TARGET_LITTLE_SYM
2304 #undef TARGET_LITTLE_NAME
2305 #undef TARGET_BIG_SYM
2306 #undef TARGET_BIG_NAME
2307
2308 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_freebsd_vec
2309 #define TARGET_LITTLE_NAME "elf32-tradlittlemips-freebsd"
2310 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_freebsd_vec
2311 #define TARGET_BIG_NAME "elf32-tradbigmips-freebsd"
2312
2313 #undef ELF_OSABI
2314 #define ELF_OSABI ELFOSABI_FREEBSD
2315
2316 /* The kernel recognizes executables as valid only if they carry a
2317 "FreeBSD" label in the ELF header. So we put this label on all
2318 executables and (for simplicity) also all other object files. */
2319
2320 static void
2321 elf_fbsd_post_process_headers (bfd *abfd, struct bfd_link_info *info)
2322 {
2323 _bfd_elf_set_osabi (abfd, info);
2324 }
2325
2326 #undef elf_backend_post_process_headers
2327 #define elf_backend_post_process_headers elf_fbsd_post_process_headers
2328 #undef elf32_bed
2329 #define elf32_bed elf32_fbsd_tradbed
2330
2331 #include "elf32-target.h"
2332 /* Implement elf_backend_final_write_processing for VxWorks. */
2333
2334 static void
2335 mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
2336 {
2337 _bfd_mips_elf_final_write_processing (abfd, linker);
2338 elf_vxworks_final_write_processing (abfd, linker);
2339 }
2340
2341 #undef TARGET_LITTLE_SYM
2342 #undef TARGET_LITTLE_NAME
2343 #undef TARGET_BIG_SYM
2344 #undef TARGET_BIG_NAME
2345
2346 #undef ELF_MAXPAGESIZE
2347 #undef ELF_COMMONPAGESIZE
2348
2349 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vxworks_vec
2350 #define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
2351 #define TARGET_BIG_SYM bfd_elf32_bigmips_vxworks_vec
2352 #define TARGET_BIG_NAME "elf32-bigmips-vxworks"
2353
2354 #undef elf32_bed
2355 #define elf32_bed elf32_mips_vxworks_bed
2356
2357 #define ELF_MAXPAGESIZE 0x1000
2358 #define ELF_COMMONPAGESIZE 0x1000
2359
2360 #undef elf_backend_want_got_plt
2361 #define elf_backend_want_got_plt 1
2362 #undef elf_backend_want_plt_sym
2363 #define elf_backend_want_plt_sym 1
2364 #undef elf_backend_may_use_rel_p
2365 #define elf_backend_may_use_rel_p 0
2366 #undef elf_backend_may_use_rela_p
2367 #define elf_backend_may_use_rela_p 1
2368 #undef elf_backend_default_use_rela_p
2369 #define elf_backend_default_use_rela_p 1
2370 #undef elf_backend_got_header_size
2371 #define elf_backend_got_header_size (4 * 3)
2372 #undef elf_backend_plt_sym_val
2373
2374 #undef elf_backend_finish_dynamic_symbol
2375 #define elf_backend_finish_dynamic_symbol \
2376 _bfd_mips_vxworks_finish_dynamic_symbol
2377 #undef bfd_elf32_bfd_link_hash_table_create
2378 #define bfd_elf32_bfd_link_hash_table_create \
2379 _bfd_mips_vxworks_link_hash_table_create
2380 #undef elf_backend_add_symbol_hook
2381 #define elf_backend_add_symbol_hook \
2382 elf_vxworks_add_symbol_hook
2383 #undef elf_backend_link_output_symbol_hook
2384 #define elf_backend_link_output_symbol_hook \
2385 elf_vxworks_link_output_symbol_hook
2386 #undef elf_backend_emit_relocs
2387 #define elf_backend_emit_relocs \
2388 elf_vxworks_emit_relocs
2389 #undef elf_backend_final_write_processing
2390 #define elf_backend_final_write_processing \
2391 mips_vxworks_final_write_processing
2392
2393 #undef elf_backend_additional_program_headers
2394 #undef elf_backend_modify_segment_map
2395 #undef elf_backend_symbol_processing
2396 /* NOTE: elf_backend_rela_normal is not defined for MIPS. */
2397
2398 #include "elf32-target.h"
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