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Default elf_backend_post_process_headers to set OSABI
[deliverable/binutils-gdb.git] / bfd / elf32-mips.c
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 /* MIPS16 TLS general dynamic variable reference. */
835 HOWTO (R_MIPS16_TLS_GD, /* type */
836 0, /* rightshift */
837 2, /* size (0 = byte, 1 = short, 2 = long) */
838 16, /* bitsize */
839 FALSE, /* pc_relative */
840 0, /* bitpos */
841 complain_overflow_signed, /* complain_on_overflow */
842 _bfd_mips_elf_generic_reloc, /* special_function */
843 "R_MIPS16_TLS_GD", /* name */
844 TRUE, /* partial_inplace */
845 0x0000ffff, /* src_mask */
846 0x0000ffff, /* dst_mask */
847 FALSE), /* pcrel_offset */
848
849 /* MIPS16 TLS local dynamic variable reference. */
850 HOWTO (R_MIPS16_TLS_LDM, /* type */
851 0, /* rightshift */
852 2, /* size (0 = byte, 1 = short, 2 = long) */
853 16, /* bitsize */
854 FALSE, /* pc_relative */
855 0, /* bitpos */
856 complain_overflow_signed, /* complain_on_overflow */
857 _bfd_mips_elf_generic_reloc, /* special_function */
858 "R_MIPS16_TLS_LDM", /* name */
859 TRUE, /* partial_inplace */
860 0x0000ffff, /* src_mask */
861 0x0000ffff, /* dst_mask */
862 FALSE), /* pcrel_offset */
863
864 /* MIPS16 TLS local dynamic offset. */
865 HOWTO (R_MIPS16_TLS_DTPREL_HI16, /* type */
866 0, /* rightshift */
867 2, /* size (0 = byte, 1 = short, 2 = long) */
868 16, /* bitsize */
869 FALSE, /* pc_relative */
870 0, /* bitpos */
871 complain_overflow_signed, /* complain_on_overflow */
872 _bfd_mips_elf_generic_reloc, /* special_function */
873 "R_MIPS16_TLS_DTPREL_HI16", /* name */
874 TRUE, /* partial_inplace */
875 0x0000ffff, /* src_mask */
876 0x0000ffff, /* dst_mask */
877 FALSE), /* pcrel_offset */
878
879 /* MIPS16 TLS local dynamic offset. */
880 HOWTO (R_MIPS16_TLS_DTPREL_LO16, /* type */
881 0, /* rightshift */
882 2, /* size (0 = byte, 1 = short, 2 = long) */
883 16, /* bitsize */
884 FALSE, /* pc_relative */
885 0, /* bitpos */
886 complain_overflow_signed, /* complain_on_overflow */
887 _bfd_mips_elf_generic_reloc, /* special_function */
888 "R_MIPS16_TLS_DTPREL_LO16", /* name */
889 TRUE, /* partial_inplace */
890 0x0000ffff, /* src_mask */
891 0x0000ffff, /* dst_mask */
892 FALSE), /* pcrel_offset */
893
894 /* MIPS16 TLS thread pointer offset. */
895 HOWTO (R_MIPS16_TLS_GOTTPREL, /* type */
896 0, /* rightshift */
897 2, /* size (0 = byte, 1 = short, 2 = long) */
898 16, /* bitsize */
899 FALSE, /* pc_relative */
900 0, /* bitpos */
901 complain_overflow_signed, /* complain_on_overflow */
902 _bfd_mips_elf_generic_reloc, /* special_function */
903 "R_MIPS16_TLS_GOTTPREL", /* name */
904 TRUE, /* partial_inplace */
905 0x0000ffff, /* src_mask */
906 0x0000ffff, /* dst_mask */
907 FALSE), /* pcrel_offset */
908
909 /* MIPS16 TLS thread pointer offset. */
910 HOWTO (R_MIPS16_TLS_TPREL_HI16, /* type */
911 0, /* rightshift */
912 2, /* size (0 = byte, 1 = short, 2 = long) */
913 16, /* bitsize */
914 FALSE, /* pc_relative */
915 0, /* bitpos */
916 complain_overflow_signed, /* complain_on_overflow */
917 _bfd_mips_elf_generic_reloc, /* special_function */
918 "R_MIPS16_TLS_TPREL_HI16", /* name */
919 TRUE, /* partial_inplace */
920 0x0000ffff, /* src_mask */
921 0x0000ffff, /* dst_mask */
922 FALSE), /* pcrel_offset */
923
924 /* MIPS16 TLS thread pointer offset. */
925 HOWTO (R_MIPS16_TLS_TPREL_LO16, /* type */
926 0, /* rightshift */
927 2, /* size (0 = byte, 1 = short, 2 = long) */
928 16, /* bitsize */
929 FALSE, /* pc_relative */
930 0, /* bitpos */
931 complain_overflow_signed, /* complain_on_overflow */
932 _bfd_mips_elf_generic_reloc, /* special_function */
933 "R_MIPS16_TLS_TPREL_LO16", /* name */
934 TRUE, /* partial_inplace */
935 0x0000ffff, /* src_mask */
936 0x0000ffff, /* dst_mask */
937 FALSE), /* pcrel_offset */
938 };
939
940 static reloc_howto_type elf_micromips_howto_table_rel[] =
941 {
942 EMPTY_HOWTO (130),
943 EMPTY_HOWTO (131),
944 EMPTY_HOWTO (132),
945
946 /* 26 bit jump address. */
947 HOWTO (R_MICROMIPS_26_S1, /* type */
948 1, /* rightshift */
949 2, /* size (0 = byte, 1 = short, 2 = long) */
950 26, /* bitsize */
951 FALSE, /* pc_relative */
952 0, /* bitpos */
953 complain_overflow_dont, /* complain_on_overflow */
954 /* This needs complex overflow
955 detection, because the upper four
956 bits must match the PC. */
957 _bfd_mips_elf_generic_reloc, /* special_function */
958 "R_MICROMIPS_26_S1", /* name */
959 TRUE, /* partial_inplace */
960 0x3ffffff, /* src_mask */
961 0x3ffffff, /* dst_mask */
962 FALSE), /* pcrel_offset */
963
964 /* High 16 bits of symbol value. */
965 HOWTO (R_MICROMIPS_HI16, /* type */
966 16, /* rightshift */
967 2, /* size (0 = byte, 1 = short, 2 = long) */
968 16, /* bitsize */
969 FALSE, /* pc_relative */
970 0, /* bitpos */
971 complain_overflow_dont, /* complain_on_overflow */
972 _bfd_mips_elf_hi16_reloc, /* special_function */
973 "R_MICROMIPS_HI16", /* name */
974 TRUE, /* partial_inplace */
975 0x0000ffff, /* src_mask */
976 0x0000ffff, /* dst_mask */
977 FALSE), /* pcrel_offset */
978
979 /* Low 16 bits of symbol value. */
980 HOWTO (R_MICROMIPS_LO16, /* type */
981 0, /* rightshift */
982 2, /* size (0 = byte, 1 = short, 2 = long) */
983 16, /* bitsize */
984 FALSE, /* pc_relative */
985 0, /* bitpos */
986 complain_overflow_dont, /* complain_on_overflow */
987 _bfd_mips_elf_lo16_reloc, /* special_function */
988 "R_MICROMIPS_LO16", /* name */
989 TRUE, /* partial_inplace */
990 0x0000ffff, /* src_mask */
991 0x0000ffff, /* dst_mask */
992 FALSE), /* pcrel_offset */
993
994 /* GP relative reference. */
995 HOWTO (R_MICROMIPS_GPREL16, /* type */
996 0, /* rightshift */
997 2, /* size (0 = byte, 1 = short, 2 = long) */
998 16, /* bitsize */
999 FALSE, /* pc_relative */
1000 0, /* bitpos */
1001 complain_overflow_signed, /* complain_on_overflow */
1002 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1003 "R_MICROMIPS_GPREL16", /* name */
1004 TRUE, /* partial_inplace */
1005 0x0000ffff, /* src_mask */
1006 0x0000ffff, /* dst_mask */
1007 FALSE), /* pcrel_offset */
1008
1009 /* Reference to literal section. */
1010 HOWTO (R_MICROMIPS_LITERAL, /* type */
1011 0, /* rightshift */
1012 2, /* size (0 = byte, 1 = short, 2 = long) */
1013 16, /* bitsize */
1014 FALSE, /* pc_relative */
1015 0, /* bitpos */
1016 complain_overflow_signed, /* complain_on_overflow */
1017 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1018 "R_MICROMIPS_LITERAL", /* name */
1019 TRUE, /* partial_inplace */
1020 0x0000ffff, /* src_mask */
1021 0x0000ffff, /* dst_mask */
1022 FALSE), /* pcrel_offset */
1023
1024 /* Reference to global offset table. */
1025 HOWTO (R_MICROMIPS_GOT16, /* type */
1026 0, /* rightshift */
1027 2, /* size (0 = byte, 1 = short, 2 = long) */
1028 16, /* bitsize */
1029 FALSE, /* pc_relative */
1030 0, /* bitpos */
1031 complain_overflow_signed, /* complain_on_overflow */
1032 _bfd_mips_elf_got16_reloc, /* special_function */
1033 "R_MICROMIPS_GOT16", /* name */
1034 TRUE, /* partial_inplace */
1035 0x0000ffff, /* src_mask */
1036 0x0000ffff, /* dst_mask */
1037 FALSE), /* pcrel_offset */
1038
1039 /* This is for microMIPS branches. */
1040 HOWTO (R_MICROMIPS_PC7_S1, /* type */
1041 1, /* rightshift */
1042 1, /* size (0 = byte, 1 = short, 2 = long) */
1043 7, /* bitsize */
1044 TRUE, /* pc_relative */
1045 0, /* bitpos */
1046 complain_overflow_signed, /* complain_on_overflow */
1047 _bfd_mips_elf_generic_reloc, /* special_function */
1048 "R_MICROMIPS_PC7_S1", /* name */
1049 TRUE, /* partial_inplace */
1050 0x0000007f, /* src_mask */
1051 0x0000007f, /* dst_mask */
1052 TRUE), /* pcrel_offset */
1053
1054 HOWTO (R_MICROMIPS_PC10_S1, /* type */
1055 1, /* rightshift */
1056 1, /* size (0 = byte, 1 = short, 2 = long) */
1057 10, /* bitsize */
1058 TRUE, /* pc_relative */
1059 0, /* bitpos */
1060 complain_overflow_signed, /* complain_on_overflow */
1061 _bfd_mips_elf_generic_reloc, /* special_function */
1062 "R_MICROMIPS_PC10_S1", /* name */
1063 TRUE, /* partial_inplace */
1064 0x000003ff, /* src_mask */
1065 0x000003ff, /* dst_mask */
1066 TRUE), /* pcrel_offset */
1067
1068 HOWTO (R_MICROMIPS_PC16_S1, /* type */
1069 1, /* rightshift */
1070 2, /* size (0 = byte, 1 = short, 2 = long) */
1071 16, /* bitsize */
1072 TRUE, /* pc_relative */
1073 0, /* bitpos */
1074 complain_overflow_signed, /* complain_on_overflow */
1075 _bfd_mips_elf_generic_reloc, /* special_function */
1076 "R_MICROMIPS_PC16_S1", /* name */
1077 TRUE, /* partial_inplace */
1078 0x0000ffff, /* src_mask */
1079 0x0000ffff, /* dst_mask */
1080 TRUE), /* pcrel_offset */
1081
1082 /* 16 bit call through global offset table. */
1083 HOWTO (R_MICROMIPS_CALL16, /* type */
1084 0, /* rightshift */
1085 2, /* size (0 = byte, 1 = short, 2 = long) */
1086 16, /* bitsize */
1087 FALSE, /* pc_relative */
1088 0, /* bitpos */
1089 complain_overflow_signed, /* complain_on_overflow */
1090 _bfd_mips_elf_generic_reloc, /* special_function */
1091 "R_MICROMIPS_CALL16", /* name */
1092 TRUE, /* partial_inplace */
1093 0x0000ffff, /* src_mask */
1094 0x0000ffff, /* dst_mask */
1095 FALSE), /* pcrel_offset */
1096
1097 EMPTY_HOWTO (143),
1098 EMPTY_HOWTO (144),
1099
1100 /* Displacement in the global offset table. */
1101 HOWTO (R_MICROMIPS_GOT_DISP, /* 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_signed, /* complain_on_overflow */
1108 _bfd_mips_elf_generic_reloc, /* special_function */
1109 "R_MICROMIPS_GOT_DISP",/* name */
1110 TRUE, /* partial_inplace */
1111 0x0000ffff, /* src_mask */
1112 0x0000ffff, /* dst_mask */
1113 FALSE), /* pcrel_offset */
1114
1115 /* Displacement to page pointer in the global offset table. */
1116 HOWTO (R_MICROMIPS_GOT_PAGE, /* 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_signed, /* complain_on_overflow */
1123 _bfd_mips_elf_generic_reloc, /* special_function */
1124 "R_MICROMIPS_GOT_PAGE",/* name */
1125 TRUE, /* partial_inplace */
1126 0x0000ffff, /* src_mask */
1127 0x0000ffff, /* dst_mask */
1128 FALSE), /* pcrel_offset */
1129
1130 /* Offset from page pointer in the global offset table. */
1131 HOWTO (R_MICROMIPS_GOT_OFST, /* 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_signed, /* complain_on_overflow */
1138 _bfd_mips_elf_generic_reloc, /* special_function */
1139 "R_MICROMIPS_GOT_OFST",/* name */
1140 TRUE, /* partial_inplace */
1141 0x0000ffff, /* src_mask */
1142 0x0000ffff, /* dst_mask */
1143 FALSE), /* pcrel_offset */
1144
1145 /* High 16 bits of displacement in global offset table. */
1146 HOWTO (R_MICROMIPS_GOT_HI16, /* type */
1147 0, /* rightshift */
1148 2, /* size (0 = byte, 1 = short, 2 = long) */
1149 16, /* 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_GOT_HI16",/* name */
1155 TRUE, /* partial_inplace */
1156 0x0000ffff, /* src_mask */
1157 0x0000ffff, /* dst_mask */
1158 FALSE), /* pcrel_offset */
1159
1160 /* Low 16 bits of displacement in global offset table. */
1161 HOWTO (R_MICROMIPS_GOT_LO16, /* type */
1162 0, /* rightshift */
1163 2, /* size (0 = byte, 1 = short, 2 = long) */
1164 16, /* bitsize */
1165 FALSE, /* pc_relative */
1166 0, /* bitpos */
1167 complain_overflow_dont, /* complain_on_overflow */
1168 _bfd_mips_elf_generic_reloc, /* special_function */
1169 "R_MICROMIPS_GOT_LO16",/* name */
1170 TRUE, /* partial_inplace */
1171 0x0000ffff, /* src_mask */
1172 0x0000ffff, /* dst_mask */
1173 FALSE), /* pcrel_offset */
1174
1175 /* 64 bit subtraction. Used in the N32 ABI. */
1176 HOWTO (R_MICROMIPS_SUB, /* type */
1177 0, /* rightshift */
1178 4, /* size (0 = byte, 1 = short, 2 = long) */
1179 64, /* bitsize */
1180 FALSE, /* pc_relative */
1181 0, /* bitpos */
1182 complain_overflow_dont, /* complain_on_overflow */
1183 _bfd_mips_elf_generic_reloc, /* special_function */
1184 "R_MICROMIPS_SUB", /* name */
1185 TRUE, /* partial_inplace */
1186 MINUS_ONE, /* src_mask */
1187 MINUS_ONE, /* dst_mask */
1188 FALSE), /* pcrel_offset */
1189
1190 /* Get the higher value of a 64 bit addend. */
1191 HOWTO (R_MICROMIPS_HIGHER, /* type */
1192 0, /* rightshift */
1193 2, /* size (0 = byte, 1 = short, 2 = long) */
1194 16, /* bitsize */
1195 FALSE, /* pc_relative */
1196 0, /* bitpos */
1197 complain_overflow_dont, /* complain_on_overflow */
1198 _bfd_mips_elf_generic_reloc, /* special_function */
1199 "R_MICROMIPS_HIGHER", /* name */
1200 TRUE, /* partial_inplace */
1201 0x0000ffff, /* src_mask */
1202 0x0000ffff, /* dst_mask */
1203 FALSE), /* pcrel_offset */
1204
1205 /* Get the highest value of a 64 bit addend. */
1206 HOWTO (R_MICROMIPS_HIGHEST, /* type */
1207 0, /* rightshift */
1208 2, /* size (0 = byte, 1 = short, 2 = long) */
1209 16, /* bitsize */
1210 FALSE, /* pc_relative */
1211 0, /* bitpos */
1212 complain_overflow_dont, /* complain_on_overflow */
1213 _bfd_mips_elf_generic_reloc, /* special_function */
1214 "R_MICROMIPS_HIGHEST", /* name */
1215 TRUE, /* partial_inplace */
1216 0x0000ffff, /* src_mask */
1217 0x0000ffff, /* dst_mask */
1218 FALSE), /* pcrel_offset */
1219
1220 /* High 16 bits of displacement in global offset table. */
1221 HOWTO (R_MICROMIPS_CALL_HI16, /* type */
1222 0, /* rightshift */
1223 2, /* size (0 = byte, 1 = short, 2 = long) */
1224 16, /* bitsize */
1225 FALSE, /* pc_relative */
1226 0, /* bitpos */
1227 complain_overflow_dont, /* complain_on_overflow */
1228 _bfd_mips_elf_generic_reloc, /* special_function */
1229 "R_MICROMIPS_CALL_HI16",/* name */
1230 TRUE, /* partial_inplace */
1231 0x0000ffff, /* src_mask */
1232 0x0000ffff, /* dst_mask */
1233 FALSE), /* pcrel_offset */
1234
1235 /* Low 16 bits of displacement in global offset table. */
1236 HOWTO (R_MICROMIPS_CALL_LO16, /* type */
1237 0, /* rightshift */
1238 2, /* size (0 = byte, 1 = short, 2 = long) */
1239 16, /* bitsize */
1240 FALSE, /* pc_relative */
1241 0, /* bitpos */
1242 complain_overflow_dont, /* complain_on_overflow */
1243 _bfd_mips_elf_generic_reloc, /* special_function */
1244 "R_MICROMIPS_CALL_LO16",/* name */
1245 TRUE, /* partial_inplace */
1246 0x0000ffff, /* src_mask */
1247 0x0000ffff, /* dst_mask */
1248 FALSE), /* pcrel_offset */
1249
1250 /* Section displacement. */
1251 HOWTO (R_MICROMIPS_SCN_DISP, /* type */
1252 0, /* rightshift */
1253 2, /* size (0 = byte, 1 = short, 2 = long) */
1254 32, /* bitsize */
1255 FALSE, /* pc_relative */
1256 0, /* bitpos */
1257 complain_overflow_dont, /* complain_on_overflow */
1258 _bfd_mips_elf_generic_reloc, /* special_function */
1259 "R_MICROMIPS_SCN_DISP",/* name */
1260 TRUE, /* partial_inplace */
1261 0xffffffff, /* src_mask */
1262 0xffffffff, /* dst_mask */
1263 FALSE), /* pcrel_offset */
1264
1265 /* Protected jump conversion. This is an optimization hint. No
1266 relocation is required for correctness. */
1267 HOWTO (R_MICROMIPS_JALR, /* type */
1268 0, /* rightshift */
1269 2, /* size (0 = byte, 1 = short, 2 = long) */
1270 32, /* bitsize */
1271 FALSE, /* pc_relative */
1272 0, /* bitpos */
1273 complain_overflow_dont, /* complain_on_overflow */
1274 _bfd_mips_elf_generic_reloc, /* special_function */
1275 "R_MICROMIPS_JALR", /* name */
1276 FALSE, /* partial_inplace */
1277 0x00000000, /* src_mask */
1278 0x00000000, /* dst_mask */
1279 FALSE), /* pcrel_offset */
1280
1281 /* Low 16 bits of symbol value. Note that the high 16 bits of symbol values
1282 must be zero. This is used for relaxation. */
1283 HOWTO (R_MICROMIPS_HI0_LO16, /* type */
1284 0, /* rightshift */
1285 2, /* size (0 = byte, 1 = short, 2 = long) */
1286 16, /* bitsize */
1287 FALSE, /* pc_relative */
1288 0, /* bitpos */
1289 complain_overflow_dont, /* complain_on_overflow */
1290 _bfd_mips_elf_generic_reloc, /* special_function */
1291 "R_MICROMIPS_HI0_LO16",/* name */
1292 TRUE, /* partial_inplace */
1293 0x0000ffff, /* src_mask */
1294 0x0000ffff, /* dst_mask */
1295 FALSE), /* pcrel_offset */
1296
1297 EMPTY_HOWTO (158),
1298 EMPTY_HOWTO (159),
1299 EMPTY_HOWTO (160),
1300 EMPTY_HOWTO (161),
1301
1302 /* TLS general dynamic variable reference. */
1303 HOWTO (R_MICROMIPS_TLS_GD, /* type */
1304 0, /* rightshift */
1305 2, /* size (0 = byte, 1 = short, 2 = long) */
1306 16, /* bitsize */
1307 FALSE, /* pc_relative */
1308 0, /* bitpos */
1309 complain_overflow_signed, /* complain_on_overflow */
1310 _bfd_mips_elf_generic_reloc, /* special_function */
1311 "R_MICROMIPS_TLS_GD", /* name */
1312 TRUE, /* partial_inplace */
1313 0x0000ffff, /* src_mask */
1314 0x0000ffff, /* dst_mask */
1315 FALSE), /* pcrel_offset */
1316
1317 /* TLS local dynamic variable reference. */
1318 HOWTO (R_MICROMIPS_TLS_LDM, /* type */
1319 0, /* rightshift */
1320 2, /* size (0 = byte, 1 = short, 2 = long) */
1321 16, /* bitsize */
1322 FALSE, /* pc_relative */
1323 0, /* bitpos */
1324 complain_overflow_signed, /* complain_on_overflow */
1325 _bfd_mips_elf_generic_reloc, /* special_function */
1326 "R_MICROMIPS_TLS_LDM", /* name */
1327 TRUE, /* partial_inplace */
1328 0x0000ffff, /* src_mask */
1329 0x0000ffff, /* dst_mask */
1330 FALSE), /* pcrel_offset */
1331
1332 /* TLS local dynamic offset. */
1333 HOWTO (R_MICROMIPS_TLS_DTPREL_HI16, /* type */
1334 0, /* rightshift */
1335 2, /* size (0 = byte, 1 = short, 2 = long) */
1336 16, /* bitsize */
1337 FALSE, /* pc_relative */
1338 0, /* bitpos */
1339 complain_overflow_signed, /* complain_on_overflow */
1340 _bfd_mips_elf_generic_reloc, /* special_function */
1341 "R_MICROMIPS_TLS_DTPREL_HI16", /* name */
1342 TRUE, /* partial_inplace */
1343 0x0000ffff, /* src_mask */
1344 0x0000ffff, /* dst_mask */
1345 FALSE), /* pcrel_offset */
1346
1347 /* TLS local dynamic offset. */
1348 HOWTO (R_MICROMIPS_TLS_DTPREL_LO16, /* type */
1349 0, /* rightshift */
1350 2, /* size (0 = byte, 1 = short, 2 = long) */
1351 16, /* bitsize */
1352 FALSE, /* pc_relative */
1353 0, /* bitpos */
1354 complain_overflow_signed, /* complain_on_overflow */
1355 _bfd_mips_elf_generic_reloc, /* special_function */
1356 "R_MICROMIPS_TLS_DTPREL_LO16", /* name */
1357 TRUE, /* partial_inplace */
1358 0x0000ffff, /* src_mask */
1359 0x0000ffff, /* dst_mask */
1360 FALSE), /* pcrel_offset */
1361
1362 /* TLS thread pointer offset. */
1363 HOWTO (R_MICROMIPS_TLS_GOTTPREL, /* type */
1364 0, /* rightshift */
1365 2, /* size (0 = byte, 1 = short, 2 = long) */
1366 16, /* bitsize */
1367 FALSE, /* pc_relative */
1368 0, /* bitpos */
1369 complain_overflow_signed, /* complain_on_overflow */
1370 _bfd_mips_elf_generic_reloc, /* special_function */
1371 "R_MICROMIPS_TLS_GOTTPREL", /* name */
1372 TRUE, /* partial_inplace */
1373 0x0000ffff, /* src_mask */
1374 0x0000ffff, /* dst_mask */
1375 FALSE), /* pcrel_offset */
1376
1377 EMPTY_HOWTO (167),
1378 EMPTY_HOWTO (168),
1379
1380 /* TLS thread pointer offset. */
1381 HOWTO (R_MICROMIPS_TLS_TPREL_HI16, /* type */
1382 0, /* rightshift */
1383 2, /* size (0 = byte, 1 = short, 2 = long) */
1384 16, /* bitsize */
1385 FALSE, /* pc_relative */
1386 0, /* bitpos */
1387 complain_overflow_signed, /* complain_on_overflow */
1388 _bfd_mips_elf_generic_reloc, /* special_function */
1389 "R_MICROMIPS_TLS_TPREL_HI16", /* name */
1390 TRUE, /* partial_inplace */
1391 0x0000ffff, /* src_mask */
1392 0x0000ffff, /* dst_mask */
1393 FALSE), /* pcrel_offset */
1394
1395 /* TLS thread pointer offset. */
1396 HOWTO (R_MICROMIPS_TLS_TPREL_LO16, /* type */
1397 0, /* rightshift */
1398 2, /* size (0 = byte, 1 = short, 2 = long) */
1399 16, /* bitsize */
1400 FALSE, /* pc_relative */
1401 0, /* bitpos */
1402 complain_overflow_signed, /* complain_on_overflow */
1403 _bfd_mips_elf_generic_reloc, /* special_function */
1404 "R_MICROMIPS_TLS_TPREL_LO16", /* name */
1405 TRUE, /* partial_inplace */
1406 0x0000ffff, /* src_mask */
1407 0x0000ffff, /* dst_mask */
1408 FALSE), /* pcrel_offset */
1409
1410 EMPTY_HOWTO (171),
1411
1412 /* GP- and PC-relative relocations. */
1413 HOWTO (R_MICROMIPS_GPREL7_S2, /* type */
1414 2, /* rightshift */
1415 1, /* size (0 = byte, 1 = short, 2 = long) */
1416 7, /* bitsize */
1417 FALSE, /* pc_relative */
1418 0, /* bitpos */
1419 complain_overflow_signed, /* complain_on_overflow */
1420 _bfd_mips_elf32_gprel16_reloc, /* special_function */
1421 "R_MICROMIPS_GPREL7_S2", /* name */
1422 TRUE, /* partial_inplace */
1423 0x0000007f, /* src_mask */
1424 0x0000007f, /* dst_mask */
1425 FALSE), /* pcrel_offset */
1426
1427 HOWTO (R_MICROMIPS_PC23_S2, /* type */
1428 2, /* rightshift */
1429 2, /* size (0 = byte, 1 = short, 2 = long) */
1430 23, /* bitsize */
1431 TRUE, /* pc_relative */
1432 0, /* bitpos */
1433 complain_overflow_signed, /* complain_on_overflow */
1434 _bfd_mips_elf_generic_reloc, /* special_function */
1435 "R_MICROMIPS_PC23_S2", /* name */
1436 TRUE, /* partial_inplace */
1437 0x007fffff, /* src_mask */
1438 0x007fffff, /* dst_mask */
1439 TRUE), /* pcrel_offset */
1440 };
1441
1442 /* 16 bit offset for pc-relative branches. */
1443 static reloc_howto_type elf_mips_gnu_rel16_s2 =
1444 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
1445 2, /* rightshift */
1446 2, /* size (0 = byte, 1 = short, 2 = long) */
1447 16, /* bitsize */
1448 TRUE, /* pc_relative */
1449 0, /* bitpos */
1450 complain_overflow_signed, /* complain_on_overflow */
1451 _bfd_mips_elf_generic_reloc, /* special_function */
1452 "R_MIPS_GNU_REL16_S2", /* name */
1453 TRUE, /* partial_inplace */
1454 0xffff, /* src_mask */
1455 0xffff, /* dst_mask */
1456 TRUE); /* pcrel_offset */
1457
1458 /* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
1459 It was co-opted by mips-linux for exception-handling data. It is no
1460 longer used, but should continue to be supported by the linker for
1461 backward compatibility. (GCC stopped using it in May, 2004.) */
1462 static reloc_howto_type elf_mips_gnu_pcrel32 =
1463 HOWTO (R_MIPS_PC32, /* type */
1464 0, /* rightshift */
1465 2, /* size (0 = byte, 1 = short, 2 = long) */
1466 32, /* bitsize */
1467 TRUE, /* pc_relative */
1468 0, /* bitpos */
1469 complain_overflow_signed, /* complain_on_overflow */
1470 _bfd_mips_elf_generic_reloc, /* special_function */
1471 "R_MIPS_PC32", /* name */
1472 TRUE, /* partial_inplace */
1473 0xffffffff, /* src_mask */
1474 0xffffffff, /* dst_mask */
1475 TRUE); /* pcrel_offset */
1476
1477 /* GNU extension to record C++ vtable hierarchy */
1478 static reloc_howto_type elf_mips_gnu_vtinherit_howto =
1479 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
1480 0, /* rightshift */
1481 2, /* size (0 = byte, 1 = short, 2 = long) */
1482 0, /* bitsize */
1483 FALSE, /* pc_relative */
1484 0, /* bitpos */
1485 complain_overflow_dont, /* complain_on_overflow */
1486 NULL, /* special_function */
1487 "R_MIPS_GNU_VTINHERIT", /* name */
1488 FALSE, /* partial_inplace */
1489 0, /* src_mask */
1490 0, /* dst_mask */
1491 FALSE); /* pcrel_offset */
1492
1493 /* GNU extension to record C++ vtable member usage */
1494 static reloc_howto_type elf_mips_gnu_vtentry_howto =
1495 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
1496 0, /* rightshift */
1497 2, /* size (0 = byte, 1 = short, 2 = long) */
1498 0, /* bitsize */
1499 FALSE, /* pc_relative */
1500 0, /* bitpos */
1501 complain_overflow_dont, /* complain_on_overflow */
1502 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
1503 "R_MIPS_GNU_VTENTRY", /* name */
1504 FALSE, /* partial_inplace */
1505 0, /* src_mask */
1506 0, /* dst_mask */
1507 FALSE); /* pcrel_offset */
1508
1509 /* Originally a VxWorks extension, but now used for other systems too. */
1510 static reloc_howto_type elf_mips_copy_howto =
1511 HOWTO (R_MIPS_COPY, /* type */
1512 0, /* rightshift */
1513 0, /* this one is variable size */
1514 0, /* bitsize */
1515 FALSE, /* pc_relative */
1516 0, /* bitpos */
1517 complain_overflow_bitfield, /* complain_on_overflow */
1518 _bfd_mips_elf_generic_reloc, /* special_function */
1519 "R_MIPS_COPY", /* name */
1520 FALSE, /* partial_inplace */
1521 0x0, /* src_mask */
1522 0x0, /* dst_mask */
1523 FALSE); /* pcrel_offset */
1524
1525 /* Originally a VxWorks extension, but now used for other systems too. */
1526 static reloc_howto_type elf_mips_jump_slot_howto =
1527 HOWTO (R_MIPS_JUMP_SLOT, /* type */
1528 0, /* rightshift */
1529 2, /* size (0 = byte, 1 = short, 2 = long) */
1530 32, /* bitsize */
1531 FALSE, /* pc_relative */
1532 0, /* bitpos */
1533 complain_overflow_bitfield, /* complain_on_overflow */
1534 _bfd_mips_elf_generic_reloc, /* special_function */
1535 "R_MIPS_JUMP_SLOT", /* name */
1536 FALSE, /* partial_inplace */
1537 0x0, /* src_mask */
1538 0x0, /* dst_mask */
1539 FALSE); /* pcrel_offset */
1540
1541 /* Used in EH tables. */
1542 static reloc_howto_type elf_mips_eh_howto =
1543 HOWTO (R_MIPS_EH, /* type */
1544 0, /* rightshift */
1545 2, /* size (0 = byte, 1 = short, 2 = long) */
1546 32, /* bitsize */
1547 FALSE, /* pc_relative */
1548 0, /* bitpos */
1549 complain_overflow_signed, /* complain_on_overflow */
1550 _bfd_mips_elf_generic_reloc, /* special_function */
1551 "R_MIPS_EH", /* name */
1552 TRUE, /* partial_inplace */
1553 0xffffffff, /* src_mask */
1554 0xffffffff, /* dst_mask */
1555 FALSE); /* pcrel_offset */
1556
1557 /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
1558 dangerous relocation. */
1559
1560 static bfd_boolean
1561 mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
1562 {
1563 unsigned int count;
1564 asymbol **sym;
1565 unsigned int i;
1566
1567 /* If we've already figured out what GP will be, just return it. */
1568 *pgp = _bfd_get_gp_value (output_bfd);
1569 if (*pgp)
1570 return TRUE;
1571
1572 count = bfd_get_symcount (output_bfd);
1573 sym = bfd_get_outsymbols (output_bfd);
1574
1575 /* The linker script will have created a symbol named `_gp' with the
1576 appropriate value. */
1577 if (sym == NULL)
1578 i = count;
1579 else
1580 {
1581 for (i = 0; i < count; i++, sym++)
1582 {
1583 register const char *name;
1584
1585 name = bfd_asymbol_name (*sym);
1586 if (*name == '_' && strcmp (name, "_gp") == 0)
1587 {
1588 *pgp = bfd_asymbol_value (*sym);
1589 _bfd_set_gp_value (output_bfd, *pgp);
1590 break;
1591 }
1592 }
1593 }
1594
1595 if (i >= count)
1596 {
1597 /* Only get the error once. */
1598 *pgp = 4;
1599 _bfd_set_gp_value (output_bfd, *pgp);
1600 return FALSE;
1601 }
1602
1603 return TRUE;
1604 }
1605
1606 /* We have to figure out the gp value, so that we can adjust the
1607 symbol value correctly. We look up the symbol _gp in the output
1608 BFD. If we can't find it, we're stuck. We cache it in the ELF
1609 target data. We don't need to adjust the symbol value for an
1610 external symbol if we are producing relocatable output. */
1611
1612 static bfd_reloc_status_type
1613 mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
1614 char **error_message, bfd_vma *pgp)
1615 {
1616 if (bfd_is_und_section (symbol->section)
1617 && ! relocatable)
1618 {
1619 *pgp = 0;
1620 return bfd_reloc_undefined;
1621 }
1622
1623 *pgp = _bfd_get_gp_value (output_bfd);
1624 if (*pgp == 0
1625 && (! relocatable
1626 || (symbol->flags & BSF_SECTION_SYM) != 0))
1627 {
1628 if (relocatable)
1629 {
1630 /* Make up a value. */
1631 *pgp = symbol->section->output_section->vma /*+ 0x4000*/;
1632 _bfd_set_gp_value (output_bfd, *pgp);
1633 }
1634 else if (!mips_elf_assign_gp (output_bfd, pgp))
1635 {
1636 *error_message =
1637 (char *) _("GP relative relocation when _gp not defined");
1638 return bfd_reloc_dangerous;
1639 }
1640 }
1641
1642 return bfd_reloc_ok;
1643 }
1644
1645 /* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
1646 become the offset from the gp register. This function also handles
1647 R_MIPS_LITERAL relocations, although those can be handled more
1648 cleverly because the entries in the .lit8 and .lit4 sections can be
1649 merged. */
1650
1651 bfd_reloc_status_type
1652 _bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry,
1653 asymbol *symbol, void *data,
1654 asection *input_section, bfd *output_bfd,
1655 char **error_message)
1656 {
1657 bfd_boolean relocatable;
1658 bfd_reloc_status_type ret;
1659 bfd_byte *location;
1660 bfd_vma gp;
1661
1662 /* R_MIPS_LITERAL/R_MICROMIPS_LITERAL relocations are defined for local
1663 symbols only. */
1664 if (literal_reloc_p (reloc_entry->howto->type)
1665 && output_bfd != NULL
1666 && (symbol->flags & BSF_SECTION_SYM) == 0
1667 && (symbol->flags & BSF_LOCAL) != 0)
1668 {
1669 *error_message = (char *)
1670 _("literal relocation occurs for an external symbol");
1671 return bfd_reloc_outofrange;
1672 }
1673
1674 if (output_bfd != NULL)
1675 relocatable = TRUE;
1676 else
1677 {
1678 relocatable = FALSE;
1679 output_bfd = symbol->section->output_section->owner;
1680 }
1681
1682 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1683 &gp);
1684 if (ret != bfd_reloc_ok)
1685 return ret;
1686
1687 location = (bfd_byte *) data + reloc_entry->address;
1688 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1689 location);
1690 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1691 input_section, relocatable,
1692 data, gp);
1693 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1694 location);
1695
1696 return ret;
1697 }
1698
1699 /* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
1700 become the offset from the gp register. */
1701
1702 static bfd_reloc_status_type
1703 mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1704 void *data, asection *input_section, bfd *output_bfd,
1705 char **error_message)
1706 {
1707 bfd_boolean relocatable;
1708 bfd_reloc_status_type ret;
1709 bfd_vma gp;
1710
1711 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1712 if (output_bfd != NULL
1713 && (symbol->flags & BSF_SECTION_SYM) == 0
1714 && (symbol->flags & BSF_LOCAL) != 0)
1715 {
1716 *error_message = (char *)
1717 _("32bits gp relative relocation occurs for an external symbol");
1718 return bfd_reloc_outofrange;
1719 }
1720
1721 if (output_bfd != NULL)
1722 relocatable = TRUE;
1723 else
1724 {
1725 relocatable = FALSE;
1726 output_bfd = symbol->section->output_section->owner;
1727 }
1728
1729 ret = mips_elf_final_gp (output_bfd, symbol, relocatable,
1730 error_message, &gp);
1731 if (ret != bfd_reloc_ok)
1732 return ret;
1733
1734 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
1735 relocatable, data, gp);
1736 }
1737
1738 static bfd_reloc_status_type
1739 gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
1740 asection *input_section, bfd_boolean relocatable,
1741 void *data, bfd_vma gp)
1742 {
1743 bfd_vma relocation;
1744 bfd_vma val;
1745
1746 if (bfd_is_com_section (symbol->section))
1747 relocation = 0;
1748 else
1749 relocation = symbol->value;
1750
1751 relocation += symbol->section->output_section->vma;
1752 relocation += symbol->section->output_offset;
1753
1754 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
1755 return bfd_reloc_outofrange;
1756
1757 /* Set val to the offset into the section or symbol. */
1758 val = reloc_entry->addend;
1759
1760 if (reloc_entry->howto->partial_inplace)
1761 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
1762
1763 /* Adjust val for the final section location and GP value. If we
1764 are producing relocatable output, we don't want to do this for
1765 an external symbol. */
1766 if (! relocatable
1767 || (symbol->flags & BSF_SECTION_SYM) != 0)
1768 val += relocation - gp;
1769
1770 if (reloc_entry->howto->partial_inplace)
1771 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
1772 else
1773 reloc_entry->addend = val;
1774
1775 if (relocatable)
1776 reloc_entry->address += input_section->output_offset;
1777
1778 return bfd_reloc_ok;
1779 }
1780
1781 /* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1782 generated when addresses are 64 bits. The upper 32 bits are a simple
1783 sign extension. */
1784
1785 static bfd_reloc_status_type
1786 mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry,
1787 asymbol *symbol ATTRIBUTE_UNUSED,
1788 void *data, asection *input_section,
1789 bfd *output_bfd, char **error_message)
1790 {
1791 bfd_reloc_status_type r;
1792 arelent reloc32;
1793 unsigned long val;
1794 bfd_size_type addr;
1795
1796 /* Do a normal 32 bit relocation on the lower 32 bits. */
1797 reloc32 = *reloc_entry;
1798 if (bfd_big_endian (abfd))
1799 reloc32.address += 4;
1800 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
1801 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
1802 output_bfd, error_message);
1803
1804 /* Sign extend into the upper 32 bits. */
1805 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
1806 if ((val & 0x80000000) != 0)
1807 val = 0xffffffff;
1808 else
1809 val = 0;
1810 addr = reloc_entry->address;
1811 if (bfd_little_endian (abfd))
1812 addr += 4;
1813 bfd_put_32 (abfd, val, (bfd_byte *) data + addr);
1814
1815 return r;
1816 }
1817
1818 /* Handle a mips16 GP relative reloc. */
1819
1820 static bfd_reloc_status_type
1821 mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1822 void *data, asection *input_section, bfd *output_bfd,
1823 char **error_message)
1824 {
1825 bfd_boolean relocatable;
1826 bfd_reloc_status_type ret;
1827 bfd_byte *location;
1828 bfd_vma gp;
1829
1830 /* If we're relocating, and this is an external symbol, we don't want
1831 to change anything. */
1832 if (output_bfd != NULL
1833 && (symbol->flags & BSF_SECTION_SYM) == 0
1834 && (symbol->flags & BSF_LOCAL) != 0)
1835 {
1836 reloc_entry->address += input_section->output_offset;
1837 return bfd_reloc_ok;
1838 }
1839
1840 if (output_bfd != NULL)
1841 relocatable = TRUE;
1842 else
1843 {
1844 relocatable = FALSE;
1845 output_bfd = symbol->section->output_section->owner;
1846 }
1847
1848 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
1849 &gp);
1850 if (ret != bfd_reloc_ok)
1851 return ret;
1852
1853 location = (bfd_byte *) data + reloc_entry->address;
1854 _bfd_mips_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1855 location);
1856 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1857 input_section, relocatable,
1858 data, gp);
1859 _bfd_mips_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1860 location);
1861
1862 return ret;
1863 }
1864
1865 /* A mapping from BFD reloc types to MIPS ELF reloc types. */
1866
1867 struct elf_reloc_map {
1868 bfd_reloc_code_real_type bfd_val;
1869 enum elf_mips_reloc_type elf_val;
1870 };
1871
1872 static const struct elf_reloc_map mips_reloc_map[] =
1873 {
1874 { BFD_RELOC_NONE, R_MIPS_NONE },
1875 { BFD_RELOC_16, R_MIPS_16 },
1876 { BFD_RELOC_32, R_MIPS_32 },
1877 /* There is no BFD reloc for R_MIPS_REL32. */
1878 { BFD_RELOC_64, R_MIPS_64 },
1879 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
1880 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
1881 { BFD_RELOC_LO16, R_MIPS_LO16 },
1882 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
1883 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
1884 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
1885 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
1886 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
1887 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
1888 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
1889 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
1890 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
1891 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
1892 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
1893 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
1894 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
1895 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
1896 { BFD_RELOC_MIPS_JALR, R_MIPS_JALR },
1897 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
1898 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
1899 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
1900 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
1901 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
1902 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
1903 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
1904 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
1905 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
1906 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
1907 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
1908 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
1909 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
1910 };
1911
1912 static const struct elf_reloc_map mips16_reloc_map[] =
1913 {
1914 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
1915 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
1916 { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min },
1917 { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min },
1918 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
1919 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
1920 { BFD_RELOC_MIPS16_TLS_GD, R_MIPS16_TLS_GD - R_MIPS16_min },
1921 { BFD_RELOC_MIPS16_TLS_LDM, R_MIPS16_TLS_LDM - R_MIPS16_min },
1922 { BFD_RELOC_MIPS16_TLS_DTPREL_HI16,
1923 R_MIPS16_TLS_DTPREL_HI16 - R_MIPS16_min },
1924 { BFD_RELOC_MIPS16_TLS_DTPREL_LO16,
1925 R_MIPS16_TLS_DTPREL_LO16 - R_MIPS16_min },
1926 { BFD_RELOC_MIPS16_TLS_GOTTPREL, R_MIPS16_TLS_GOTTPREL - R_MIPS16_min },
1927 { BFD_RELOC_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_HI16 - R_MIPS16_min },
1928 { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min }
1929 };
1930
1931 static const struct elf_reloc_map micromips_reloc_map[] =
1932 {
1933 { BFD_RELOC_MICROMIPS_JMP, R_MICROMIPS_26_S1 - R_MICROMIPS_min },
1934 { BFD_RELOC_MICROMIPS_HI16_S, R_MICROMIPS_HI16 - R_MICROMIPS_min },
1935 { BFD_RELOC_MICROMIPS_LO16, R_MICROMIPS_LO16 - R_MICROMIPS_min },
1936 { BFD_RELOC_MICROMIPS_GPREL16, R_MICROMIPS_GPREL16 - R_MICROMIPS_min },
1937 { BFD_RELOC_MICROMIPS_LITERAL, R_MICROMIPS_LITERAL - R_MICROMIPS_min },
1938 { BFD_RELOC_MICROMIPS_GOT16, R_MICROMIPS_GOT16 - R_MICROMIPS_min },
1939 { BFD_RELOC_MICROMIPS_7_PCREL_S1, R_MICROMIPS_PC7_S1 - R_MICROMIPS_min },
1940 { BFD_RELOC_MICROMIPS_10_PCREL_S1, R_MICROMIPS_PC10_S1 - R_MICROMIPS_min },
1941 { BFD_RELOC_MICROMIPS_16_PCREL_S1, R_MICROMIPS_PC16_S1 - R_MICROMIPS_min },
1942 { BFD_RELOC_MICROMIPS_CALL16, R_MICROMIPS_CALL16 - R_MICROMIPS_min },
1943 { BFD_RELOC_MICROMIPS_GOT_DISP, R_MICROMIPS_GOT_DISP - R_MICROMIPS_min },
1944 { BFD_RELOC_MICROMIPS_GOT_PAGE, R_MICROMIPS_GOT_PAGE - R_MICROMIPS_min },
1945 { BFD_RELOC_MICROMIPS_GOT_OFST, R_MICROMIPS_GOT_OFST - R_MICROMIPS_min },
1946 { BFD_RELOC_MICROMIPS_GOT_HI16, R_MICROMIPS_GOT_HI16 - R_MICROMIPS_min },
1947 { BFD_RELOC_MICROMIPS_GOT_LO16, R_MICROMIPS_GOT_LO16 - R_MICROMIPS_min },
1948 { BFD_RELOC_MICROMIPS_SUB, R_MICROMIPS_SUB - R_MICROMIPS_min },
1949 { BFD_RELOC_MICROMIPS_HIGHER, R_MICROMIPS_HIGHER - R_MICROMIPS_min },
1950 { BFD_RELOC_MICROMIPS_HIGHEST, R_MICROMIPS_HIGHEST - R_MICROMIPS_min },
1951 { BFD_RELOC_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_HI16 - R_MICROMIPS_min },
1952 { BFD_RELOC_MICROMIPS_CALL_LO16, R_MICROMIPS_CALL_LO16 - R_MICROMIPS_min },
1953 { BFD_RELOC_MICROMIPS_SCN_DISP, R_MICROMIPS_SCN_DISP - R_MICROMIPS_min },
1954 { BFD_RELOC_MICROMIPS_JALR, R_MICROMIPS_JALR - R_MICROMIPS_min },
1955 /* There is no BFD reloc for R_MICROMIPS_HI0_LO16. */
1956 { BFD_RELOC_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_GD - R_MICROMIPS_min },
1957 { BFD_RELOC_MICROMIPS_TLS_LDM, R_MICROMIPS_TLS_LDM - R_MICROMIPS_min },
1958 { BFD_RELOC_MICROMIPS_TLS_DTPREL_HI16,
1959 R_MICROMIPS_TLS_DTPREL_HI16 - R_MICROMIPS_min },
1960 { BFD_RELOC_MICROMIPS_TLS_DTPREL_LO16,
1961 R_MICROMIPS_TLS_DTPREL_LO16 - R_MICROMIPS_min },
1962 { BFD_RELOC_MICROMIPS_TLS_GOTTPREL,
1963 R_MICROMIPS_TLS_GOTTPREL - R_MICROMIPS_min },
1964 { BFD_RELOC_MICROMIPS_TLS_TPREL_HI16,
1965 R_MICROMIPS_TLS_TPREL_HI16 - R_MICROMIPS_min },
1966 { BFD_RELOC_MICROMIPS_TLS_TPREL_LO16,
1967 R_MICROMIPS_TLS_TPREL_LO16 - R_MICROMIPS_min },
1968 /* There is no BFD reloc for R_MICROMIPS_GPREL7_S2. */
1969 /* There is no BFD reloc for R_MICROMIPS_PC23_S2. */
1970 };
1971
1972 /* Given a BFD reloc type, return a howto structure. */
1973
1974 static reloc_howto_type *
1975 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1976 {
1977 unsigned int i;
1978 reloc_howto_type *howto_table = elf_mips_howto_table_rel;
1979 reloc_howto_type *howto16_table = elf_mips16_howto_table_rel;
1980 reloc_howto_type *howto_micromips_table = elf_micromips_howto_table_rel;
1981
1982 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
1983 i++)
1984 {
1985 if (mips_reloc_map[i].bfd_val == code)
1986 return &howto_table[(int) mips_reloc_map[i].elf_val];
1987 }
1988
1989 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
1990 i++)
1991 {
1992 if (mips16_reloc_map[i].bfd_val == code)
1993 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
1994 }
1995
1996 for (i = 0; i < sizeof (micromips_reloc_map) / sizeof (struct elf_reloc_map);
1997 i++)
1998 {
1999 if (micromips_reloc_map[i].bfd_val == code)
2000 return &howto_micromips_table[(int) micromips_reloc_map[i].elf_val];
2001 }
2002
2003 switch (code)
2004 {
2005 default:
2006 bfd_set_error (bfd_error_bad_value);
2007 return NULL;
2008
2009 case BFD_RELOC_CTOR:
2010 /* We need to handle BFD_RELOC_CTOR specially.
2011 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
2012 size of addresses of the ABI. */
2013 if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64
2014 | E_MIPS_ABI_EABI64)) != 0)
2015 return &elf_mips_ctor64_howto;
2016 else
2017 return &howto_table[(int) R_MIPS_32];
2018
2019 case BFD_RELOC_VTABLE_INHERIT:
2020 return &elf_mips_gnu_vtinherit_howto;
2021 case BFD_RELOC_VTABLE_ENTRY:
2022 return &elf_mips_gnu_vtentry_howto;
2023 case BFD_RELOC_32_PCREL:
2024 return &elf_mips_gnu_pcrel32;
2025 case BFD_RELOC_MIPS_COPY:
2026 return &elf_mips_copy_howto;
2027 case BFD_RELOC_MIPS_JUMP_SLOT:
2028 return &elf_mips_jump_slot_howto;
2029 case BFD_RELOC_MIPS_EH:
2030 return &elf_mips_eh_howto;
2031 }
2032 }
2033
2034 static reloc_howto_type *
2035 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
2036 const char *r_name)
2037 {
2038 unsigned int i;
2039
2040 for (i = 0;
2041 i < (sizeof (elf_mips_howto_table_rel)
2042 / sizeof (elf_mips_howto_table_rel[0]));
2043 i++)
2044 if (elf_mips_howto_table_rel[i].name != NULL
2045 && strcasecmp (elf_mips_howto_table_rel[i].name, r_name) == 0)
2046 return &elf_mips_howto_table_rel[i];
2047
2048 for (i = 0;
2049 i < (sizeof (elf_mips16_howto_table_rel)
2050 / sizeof (elf_mips16_howto_table_rel[0]));
2051 i++)
2052 if (elf_mips16_howto_table_rel[i].name != NULL
2053 && strcasecmp (elf_mips16_howto_table_rel[i].name, r_name) == 0)
2054 return &elf_mips16_howto_table_rel[i];
2055
2056 for (i = 0;
2057 i < (sizeof (elf_micromips_howto_table_rel)
2058 / sizeof (elf_micromips_howto_table_rel[0]));
2059 i++)
2060 if (elf_micromips_howto_table_rel[i].name != NULL
2061 && strcasecmp (elf_micromips_howto_table_rel[i].name, r_name) == 0)
2062 return &elf_micromips_howto_table_rel[i];
2063
2064 if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0)
2065 return &elf_mips_gnu_pcrel32;
2066 if (strcasecmp (elf_mips_gnu_rel16_s2.name, r_name) == 0)
2067 return &elf_mips_gnu_rel16_s2;
2068 if (strcasecmp (elf_mips_gnu_vtinherit_howto.name, r_name) == 0)
2069 return &elf_mips_gnu_vtinherit_howto;
2070 if (strcasecmp (elf_mips_gnu_vtentry_howto.name, r_name) == 0)
2071 return &elf_mips_gnu_vtentry_howto;
2072 if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0)
2073 return &elf_mips_copy_howto;
2074 if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0)
2075 return &elf_mips_jump_slot_howto;
2076 if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0)
2077 return &elf_mips_eh_howto;
2078
2079 return NULL;
2080 }
2081
2082 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2083
2084 static reloc_howto_type *
2085 mips_elf32_rtype_to_howto (unsigned int r_type,
2086 bfd_boolean rela_p ATTRIBUTE_UNUSED)
2087 {
2088 switch (r_type)
2089 {
2090 case R_MIPS_GNU_VTINHERIT:
2091 return &elf_mips_gnu_vtinherit_howto;
2092 case R_MIPS_GNU_VTENTRY:
2093 return &elf_mips_gnu_vtentry_howto;
2094 case R_MIPS_GNU_REL16_S2:
2095 return &elf_mips_gnu_rel16_s2;
2096 case R_MIPS_PC32:
2097 return &elf_mips_gnu_pcrel32;
2098 case R_MIPS_COPY:
2099 return &elf_mips_copy_howto;
2100 case R_MIPS_JUMP_SLOT:
2101 return &elf_mips_jump_slot_howto;
2102 case R_MIPS_EH:
2103 return &elf_mips_eh_howto;
2104 default:
2105 if (r_type >= R_MICROMIPS_min && r_type < R_MICROMIPS_max)
2106 return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min];
2107 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
2108 return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
2109 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
2110 return &elf_mips_howto_table_rel[r_type];
2111 }
2112 }
2113
2114 /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
2115
2116 static void
2117 mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2118 {
2119 const struct elf_backend_data *bed;
2120 unsigned int r_type;
2121
2122 r_type = ELF32_R_TYPE (dst->r_info);
2123 bed = get_elf_backend_data (abfd);
2124 cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE);
2125
2126 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
2127 value for the object file. We get the addend now, rather than
2128 when we do the relocation, because the symbol manipulations done
2129 by the linker may cause us to lose track of the input BFD. */
2130 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
2131 && (gprel16_reloc_p (r_type) || literal_reloc_p (r_type)))
2132 cache_ptr->addend = elf_gp (abfd);
2133 }
2134
2135 /* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */
2136
2137 static void
2138 mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
2139 {
2140 mips_info_to_howto_rel (abfd, cache_ptr, dst);
2141
2142 /* If we ever need to do any extra processing with dst->r_addend
2143 (the field omitted in an Elf_Internal_Rel) we can do it here. */
2144 }
2145 \f
2146 /* Determine whether a symbol is global for the purposes of splitting
2147 the symbol table into global symbols and local symbols. At least
2148 on Irix 5, this split must be between section symbols and all other
2149 symbols. On most ELF targets the split is between static symbols
2150 and externally visible symbols. */
2151
2152 static bfd_boolean
2153 mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym)
2154 {
2155 if (SGI_COMPAT (abfd))
2156 return (sym->flags & BSF_SECTION_SYM) == 0;
2157 else
2158 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0
2159 || bfd_is_und_section (bfd_get_section (sym))
2160 || bfd_is_com_section (bfd_get_section (sym)));
2161 }
2162 \f
2163 /* Set the right machine number for a MIPS ELF file. */
2164
2165 static bfd_boolean
2166 mips_elf32_object_p (bfd *abfd)
2167 {
2168 unsigned long mach;
2169
2170 if (ABI_N32_P (abfd))
2171 return FALSE;
2172
2173 /* Irix 5 and 6 are broken. Object file symbol tables are not always
2174 sorted correctly such that local symbols precede global symbols,
2175 and the sh_info field in the symbol table is not always right. */
2176 if (SGI_COMPAT (abfd))
2177 elf_bad_symtab (abfd) = TRUE;
2178
2179 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
2180 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
2181 return TRUE;
2182 }
2183 \f
2184 /* MIPS ELF local labels start with '$', not 'L'. */
2185
2186 static bfd_boolean
2187 mips_elf_is_local_label_name (bfd *abfd, const char *name)
2188 {
2189 if (name[0] == '$')
2190 return TRUE;
2191
2192 /* On Irix 6, the labels go back to starting with '.', so we accept
2193 the generic ELF local label syntax as well. */
2194 return _bfd_elf_is_local_label_name (abfd, name);
2195 }
2196 \f
2197 /* Support for core dump NOTE sections. */
2198 static bfd_boolean
2199 elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2200 {
2201 int offset;
2202 unsigned int size;
2203
2204 switch (note->descsz)
2205 {
2206 default:
2207 return FALSE;
2208
2209 case 256: /* Linux/MIPS */
2210 /* pr_cursig */
2211 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
2212
2213 /* pr_pid */
2214 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
2215
2216 /* pr_reg */
2217 offset = 72;
2218 size = 180;
2219
2220 break;
2221 }
2222
2223 /* Make a ".reg/999" section. */
2224 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
2225 size, note->descpos + offset);
2226 }
2227
2228 static bfd_boolean
2229 elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2230 {
2231 switch (note->descsz)
2232 {
2233 default:
2234 return FALSE;
2235
2236 case 128: /* Linux/MIPS elf_prpsinfo */
2237 elf_tdata (abfd)->core->program
2238 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
2239 elf_tdata (abfd)->core->command
2240 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
2241 }
2242
2243 /* Note that for some reason, a spurious space is tacked
2244 onto the end of the args in some (at least one anyway)
2245 implementations, so strip it off if it exists. */
2246
2247 {
2248 char *command = elf_tdata (abfd)->core->command;
2249 int n = strlen (command);
2250
2251 if (0 < n && command[n - 1] == ' ')
2252 command[n - 1] = '\0';
2253 }
2254
2255 return TRUE;
2256 }
2257 \f
2258 /* Depending on the target vector we generate some version of Irix
2259 executables or "normal" MIPS ELF ABI executables. */
2260 static irix_compat_t
2261 elf32_mips_irix_compat (bfd *abfd)
2262 {
2263 if ((abfd->xvec == &bfd_elf32_bigmips_vec)
2264 || (abfd->xvec == &bfd_elf32_littlemips_vec))
2265 return ict_irix5;
2266 else
2267 return ict_none;
2268 }
2269 \f
2270 /* ECOFF swapping routines. These are used when dealing with the
2271 .mdebug section, which is in the ECOFF debugging format. */
2272 static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
2273 /* Symbol table magic number. */
2274 magicSym,
2275 /* Alignment of debugging information. E.g., 4. */
2276 4,
2277 /* Sizes of external symbolic information. */
2278 sizeof (struct hdr_ext),
2279 sizeof (struct dnr_ext),
2280 sizeof (struct pdr_ext),
2281 sizeof (struct sym_ext),
2282 sizeof (struct opt_ext),
2283 sizeof (struct fdr_ext),
2284 sizeof (struct rfd_ext),
2285 sizeof (struct ext_ext),
2286 /* Functions to swap in external symbolic data. */
2287 ecoff_swap_hdr_in,
2288 ecoff_swap_dnr_in,
2289 ecoff_swap_pdr_in,
2290 ecoff_swap_sym_in,
2291 ecoff_swap_opt_in,
2292 ecoff_swap_fdr_in,
2293 ecoff_swap_rfd_in,
2294 ecoff_swap_ext_in,
2295 _bfd_ecoff_swap_tir_in,
2296 _bfd_ecoff_swap_rndx_in,
2297 /* Functions to swap out external symbolic data. */
2298 ecoff_swap_hdr_out,
2299 ecoff_swap_dnr_out,
2300 ecoff_swap_pdr_out,
2301 ecoff_swap_sym_out,
2302 ecoff_swap_opt_out,
2303 ecoff_swap_fdr_out,
2304 ecoff_swap_rfd_out,
2305 ecoff_swap_ext_out,
2306 _bfd_ecoff_swap_tir_out,
2307 _bfd_ecoff_swap_rndx_out,
2308 /* Function to read in symbolic data. */
2309 _bfd_mips_elf_read_ecoff_info
2310 };
2311 \f
2312 #define ELF_ARCH bfd_arch_mips
2313 #define ELF_TARGET_ID MIPS_ELF_DATA
2314 #define ELF_MACHINE_CODE EM_MIPS
2315
2316 #define elf_backend_collect TRUE
2317 #define elf_backend_type_change_ok TRUE
2318 #define elf_backend_can_gc_sections TRUE
2319 #define elf_info_to_howto mips_info_to_howto_rela
2320 #define elf_info_to_howto_rel mips_info_to_howto_rel
2321 #define elf_backend_sym_is_global mips_elf_sym_is_global
2322 #define elf_backend_object_p mips_elf32_object_p
2323 #define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
2324 #define elf_backend_section_processing _bfd_mips_elf_section_processing
2325 #define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
2326 #define elf_backend_fake_sections _bfd_mips_elf_fake_sections
2327 #define elf_backend_section_from_bfd_section \
2328 _bfd_mips_elf_section_from_bfd_section
2329 #define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
2330 #define elf_backend_link_output_symbol_hook \
2331 _bfd_mips_elf_link_output_symbol_hook
2332 #define elf_backend_create_dynamic_sections \
2333 _bfd_mips_elf_create_dynamic_sections
2334 #define elf_backend_check_relocs _bfd_mips_elf_check_relocs
2335 #define elf_backend_merge_symbol_attribute \
2336 _bfd_mips_elf_merge_symbol_attribute
2337 #define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag
2338 #define elf_backend_adjust_dynamic_symbol \
2339 _bfd_mips_elf_adjust_dynamic_symbol
2340 #define elf_backend_always_size_sections \
2341 _bfd_mips_elf_always_size_sections
2342 #define elf_backend_size_dynamic_sections \
2343 _bfd_mips_elf_size_dynamic_sections
2344 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
2345 #define elf_backend_relocate_section _bfd_mips_elf_relocate_section
2346 #define elf_backend_finish_dynamic_symbol \
2347 _bfd_mips_elf_finish_dynamic_symbol
2348 #define elf_backend_finish_dynamic_sections \
2349 _bfd_mips_elf_finish_dynamic_sections
2350 #define elf_backend_final_write_processing \
2351 _bfd_mips_elf_final_write_processing
2352 #define elf_backend_additional_program_headers \
2353 _bfd_mips_elf_additional_program_headers
2354 #define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
2355 #define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
2356 #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
2357 #define elf_backend_copy_indirect_symbol \
2358 _bfd_mips_elf_copy_indirect_symbol
2359 #define elf_backend_grok_prstatus elf32_mips_grok_prstatus
2360 #define elf_backend_grok_psinfo elf32_mips_grok_psinfo
2361 #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
2362
2363 #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
2364 #define elf_backend_may_use_rel_p 1
2365 #define elf_backend_may_use_rela_p 0
2366 #define elf_backend_default_use_rela_p 0
2367 #define elf_backend_sign_extend_vma TRUE
2368 #define elf_backend_plt_readonly 1
2369
2370 #define elf_backend_discard_info _bfd_mips_elf_discard_info
2371 #define elf_backend_ignore_discarded_relocs \
2372 _bfd_mips_elf_ignore_discarded_relocs
2373 #define elf_backend_write_section _bfd_mips_elf_write_section
2374 #define elf_backend_mips_irix_compat elf32_mips_irix_compat
2375 #define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
2376 #define bfd_elf32_bfd_is_local_label_name \
2377 mips_elf_is_local_label_name
2378 #define bfd_elf32_bfd_is_target_special_symbol \
2379 _bfd_mips_elf_is_target_special_symbol
2380 #define bfd_elf32_get_synthetic_symtab _bfd_mips_elf_get_synthetic_symtab
2381 #define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
2382 #define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
2383 #define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
2384 #define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
2385 #define bfd_elf32_bfd_get_relocated_section_contents \
2386 _bfd_elf_mips_get_relocated_section_contents
2387 #define bfd_elf32_bfd_link_hash_table_create \
2388 _bfd_mips_elf_link_hash_table_create
2389 #define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
2390 #define bfd_elf32_bfd_merge_private_bfd_data \
2391 _bfd_mips_elf_merge_private_bfd_data
2392 #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
2393 #define bfd_elf32_bfd_print_private_bfd_data \
2394 _bfd_mips_elf_print_private_bfd_data
2395 #define bfd_elf32_bfd_relax_section _bfd_mips_elf_relax_section
2396 #define bfd_elf32_mkobject _bfd_mips_elf_mkobject
2397
2398 /* Support for SGI-ish mips targets. */
2399 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
2400 #define TARGET_LITTLE_NAME "elf32-littlemips"
2401 #define TARGET_BIG_SYM bfd_elf32_bigmips_vec
2402 #define TARGET_BIG_NAME "elf32-bigmips"
2403
2404 /* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
2405 a value of 0x1000, and we are compatible. */
2406 #define ELF_MAXPAGESIZE 0x1000
2407 #define ELF_COMMONPAGESIZE 0x1000
2408
2409 #include "elf32-target.h"
2410
2411 /* Support for traditional mips targets. */
2412 #undef TARGET_LITTLE_SYM
2413 #undef TARGET_LITTLE_NAME
2414 #undef TARGET_BIG_SYM
2415 #undef TARGET_BIG_NAME
2416
2417 #undef ELF_MAXPAGESIZE
2418 #undef ELF_COMMONPAGESIZE
2419
2420 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
2421 #define TARGET_LITTLE_NAME "elf32-tradlittlemips"
2422 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
2423 #define TARGET_BIG_NAME "elf32-tradbigmips"
2424
2425 /* The MIPS ABI says at Page 5-1:
2426 Virtual addresses and file offsets for MIPS segments are congruent
2427 modulo 64 KByte (0x10000) or larger powers of 2. Because 64 KBytes
2428 is the maximum page size, the files are suitable for paging
2429 regardless of physical page size. */
2430 #define ELF_MAXPAGESIZE 0x10000
2431 #define ELF_COMMONPAGESIZE 0x1000
2432 #define elf32_bed elf32_tradbed
2433
2434 /* Include the target file again for this target. */
2435 #include "elf32-target.h"
2436
2437 /* FreeBSD support. */
2438
2439 #undef TARGET_LITTLE_SYM
2440 #undef TARGET_LITTLE_NAME
2441 #undef TARGET_BIG_SYM
2442 #undef TARGET_BIG_NAME
2443
2444 #define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_freebsd_vec
2445 #define TARGET_LITTLE_NAME "elf32-tradlittlemips-freebsd"
2446 #define TARGET_BIG_SYM bfd_elf32_tradbigmips_freebsd_vec
2447 #define TARGET_BIG_NAME "elf32-tradbigmips-freebsd"
2448
2449 #undef ELF_OSABI
2450 #define ELF_OSABI ELFOSABI_FREEBSD
2451
2452 #undef elf32_bed
2453 #define elf32_bed elf32_fbsd_tradbed
2454
2455 #include "elf32-target.h"
2456 /* Implement elf_backend_final_write_processing for VxWorks. */
2457
2458 static void
2459 mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
2460 {
2461 _bfd_mips_elf_final_write_processing (abfd, linker);
2462 elf_vxworks_final_write_processing (abfd, linker);
2463 }
2464
2465 #undef TARGET_LITTLE_SYM
2466 #undef TARGET_LITTLE_NAME
2467 #undef TARGET_BIG_SYM
2468 #undef TARGET_BIG_NAME
2469
2470 #undef ELF_MAXPAGESIZE
2471 #undef ELF_COMMONPAGESIZE
2472
2473 #define TARGET_LITTLE_SYM bfd_elf32_littlemips_vxworks_vec
2474 #define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
2475 #define TARGET_BIG_SYM bfd_elf32_bigmips_vxworks_vec
2476 #define TARGET_BIG_NAME "elf32-bigmips-vxworks"
2477 #undef ELF_OSABI
2478
2479 #undef elf32_bed
2480 #define elf32_bed elf32_mips_vxworks_bed
2481
2482 #define ELF_MAXPAGESIZE 0x1000
2483 #define ELF_COMMONPAGESIZE 0x1000
2484
2485 #undef elf_backend_want_got_plt
2486 #define elf_backend_want_got_plt 1
2487 #undef elf_backend_want_plt_sym
2488 #define elf_backend_want_plt_sym 1
2489 #undef elf_backend_may_use_rel_p
2490 #define elf_backend_may_use_rel_p 0
2491 #undef elf_backend_may_use_rela_p
2492 #define elf_backend_may_use_rela_p 1
2493 #undef elf_backend_default_use_rela_p
2494 #define elf_backend_default_use_rela_p 1
2495 #undef elf_backend_got_header_size
2496 #define elf_backend_got_header_size (4 * 3)
2497
2498 #undef elf_backend_finish_dynamic_symbol
2499 #define elf_backend_finish_dynamic_symbol \
2500 _bfd_mips_vxworks_finish_dynamic_symbol
2501 #undef bfd_elf32_bfd_link_hash_table_create
2502 #define bfd_elf32_bfd_link_hash_table_create \
2503 _bfd_mips_vxworks_link_hash_table_create
2504 #undef elf_backend_add_symbol_hook
2505 #define elf_backend_add_symbol_hook \
2506 elf_vxworks_add_symbol_hook
2507 #undef elf_backend_link_output_symbol_hook
2508 #define elf_backend_link_output_symbol_hook \
2509 elf_vxworks_link_output_symbol_hook
2510 #undef elf_backend_emit_relocs
2511 #define elf_backend_emit_relocs \
2512 elf_vxworks_emit_relocs
2513 #undef elf_backend_final_write_processing
2514 #define elf_backend_final_write_processing \
2515 mips_vxworks_final_write_processing
2516
2517 #undef elf_backend_additional_program_headers
2518 #undef elf_backend_modify_segment_map
2519 #undef elf_backend_symbol_processing
2520 /* NOTE: elf_backend_rela_normal is not defined for MIPS. */
2521
2522 #undef bfd_elf32_get_synthetic_symtab
2523
2524 #include "elf32-target.h"
GDB Binutils - Deliverables
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