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Typo fix.
[deliverable/binutils-gdb.git] / bfd / elf32-mips.c
CommitLineData
efcbd82c 1/* MIPS-specific support for 32-bit ELF
f0abc2a1 2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
0f20cc35 3 2003, 2004, 2005 Free Software Foundation, Inc.
252b5132
RH		 4
5 Most of the information added by Ian Lance Taylor, Cygnus Support,
6 <ian@cygnus.com>.
103186c6
MM		 7 N32/64 ABI support added by Mark Mitchell, CodeSourcery, LLC.
8 <mark@codesourcery.com>
f7cb7d68
UC		 9 Traditional MIPS targets support added by Koundinya.K, Dansk Data
10 Elektronik & Operations Research Group. <kk@ddeorg.soft.net>
252b5132
RH		 11
12This file is part of BFD, the Binary File Descriptor library.
13
14This program is free software; you can redistribute it and/or modify
15it under the terms of the GNU General Public License as published by
16the Free Software Foundation; either version 2 of the License, or
17(at your option) any later version.
18
19This program is distributed in the hope that it will be useful,
20but WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22GNU General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; if not, write to the Free Software
3e110533 26Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132
RH		 27
28/* This file handles MIPS ELF targets. SGI Irix 5 uses a slightly
29 different MIPS ELF from other targets. This matters when linking.
30 This file supports both, switching at runtime. */
31
32#include "bfd.h"
33#include "sysdep.h"
34#include "libbfd.h"
35#include "bfdlink.h"
36#include "genlink.h"
37#include "elf-bfd.h"
c6e90b02 38#include "elfxx-mips.h"
252b5132 39#include "elf/mips.h"
0a44bf69 40#include "elf-vxworks.h"
252b5132
RH		 41
42/* Get the ECOFF swapping routines. */
43#include "coff/sym.h"
44#include "coff/symconst.h"
45#include "coff/internal.h"
46#include "coff/ecoff.h"
47#include "coff/mips.h"
23e2c83b 48#define ECOFF_SIGNED_32
252b5132
RH		 49#include "ecoffswap.h"
50
a7ebbfdf 51static bfd_reloc_status_type gprel32_with_gp
11a2be4d 52 (bfd *, asymbol *, arelent *, asection *, bfd_boolean, void *, bfd_vma);
c6e90b02 53static bfd_reloc_status_type mips_elf_gprel32_reloc
11a2be4d 54 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 55static bfd_reloc_status_type mips32_64bit_reloc
11a2be4d 56 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 57static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
11a2be4d 58 (bfd *, bfd_reloc_code_real_type);
c6e90b02 59static reloc_howto_type *mips_elf32_rtype_to_howto
11a2be4d 60 (unsigned int, bfd_boolean);
252b5132 61static void mips_info_to_howto_rel
11a2be4d 62 (bfd *, arelent *, Elf_Internal_Rela *);
3f830999 63static void mips_info_to_howto_rela
11a2be4d 64 (bfd *, arelent *, Elf_Internal_Rela *);
b34976b6 65static bfd_boolean mips_elf_sym_is_global
11a2be4d 66 (bfd *, asymbol *);
b34976b6 67static bfd_boolean mips_elf32_object_p
11a2be4d 68 (bfd *);
b34976b6 69static bfd_boolean mips_elf_is_local_label_name
11a2be4d 70 (bfd *, const char *);
252b5132 71static bfd_reloc_status_type mips16_jump_reloc
11a2be4d 72 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 73static bfd_reloc_status_type mips16_gprel_reloc
11a2be4d 74 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
252b5132 75static bfd_reloc_status_type mips_elf_final_gp
11a2be4d 76 (bfd *, asymbol *, bfd_boolean, char **, bfd_vma *);
b34976b6 77static bfd_boolean mips_elf_assign_gp
11a2be4d 78 (bfd *, bfd_vma *);
b34976b6 79static bfd_boolean elf32_mips_grok_prstatus
11a2be4d 80 (bfd *, Elf_Internal_Note *);
b34976b6 81static bfd_boolean elf32_mips_grok_psinfo
11a2be4d 82 (bfd *, Elf_Internal_Note *);
c6e90b02 83static irix_compat_t elf32_mips_irix_compat
11a2be4d 84 (bfd *);
252b5132 85
cb7394f2
TS		 86extern const bfd_target bfd_elf32_bigmips_vec;
87extern const bfd_target bfd_elf32_littlemips_vec;
adb76a3e 88
a94a7c1c 89/* Nonzero if ABFD is using the N32 ABI. */
a94a7c1c
MM		 90#define ABI_N32_P(abfd) \
91 ((elf_elfheader (abfd)->e_flags & EF_MIPS_ABI2) != 0)
92
4e8a9624 93/* Whether we are trying to be compatible with IRIX at all. */
a94a7c1c 94#define SGI_COMPAT(abfd) \
c6e90b02 95 (elf32_mips_irix_compat (abfd) != ict_none)
103186c6 96
252b5132
RH		 97/* The number of local .got entries we reserve. */
98#define MIPS_RESERVED_GOTNO (2)
99
3f830999
MM		 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
d75bc93d
TS		 104/* The relocation table used for SHT_REL sections. */
105
106static 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 */
b34976b6 113 FALSE, /* pc_relative */
d75bc93d
TS		 114 0, /* bitpos */
115 complain_overflow_dont, /* complain_on_overflow */
30ac9238 116 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 117 "R_MIPS_NONE", /* name */
b34976b6 118 FALSE, /* partial_inplace */
d75bc93d
TS		 119 0, /* src_mask */
120 0, /* dst_mask */
b34976b6 121 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 128 FALSE, /* pc_relative */
d75bc93d
TS		 129 0, /* bitpos */
130 complain_overflow_signed, /* complain_on_overflow */
30ac9238 131 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 132 "R_MIPS_16", /* name */
b34976b6 133 TRUE, /* partial_inplace */
d75bc93d
TS		 134 0x0000ffff, /* src_mask */
135 0x0000ffff, /* dst_mask */
b34976b6 136 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 143 FALSE, /* pc_relative */
d75bc93d
TS		 144 0, /* bitpos */
145 complain_overflow_dont, /* complain_on_overflow */
30ac9238 146 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 147 "R_MIPS_32", /* name */
b34976b6 148 TRUE, /* partial_inplace */
d75bc93d
TS		 149 0xffffffff, /* src_mask */
150 0xffffffff, /* dst_mask */
b34976b6 151 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 158 FALSE, /* pc_relative */
d75bc93d
TS		 159 0, /* bitpos */
160 complain_overflow_dont, /* complain_on_overflow */
30ac9238 161 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 162 "R_MIPS_REL32", /* name */
b34976b6 163 TRUE, /* partial_inplace */
d75bc93d
TS		 164 0xffffffff, /* src_mask */
165 0xffffffff, /* dst_mask */
b34976b6 166 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 173 FALSE, /* pc_relative */
d75bc93d
TS		 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. */
30ac9238 179 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 180 "R_MIPS_26", /* name */
b34976b6 181 TRUE, /* partial_inplace */
d75bc93d
TS		 182 0x03ffffff, /* src_mask */
183 0x03ffffff, /* dst_mask */
b34976b6 184 FALSE), /* pcrel_offset */
d75bc93d
TS		 185
186 /* High 16 bits of symbol value. */
187 HOWTO (R_MIPS_HI16, /* type */
30ac9238 188 16, /* rightshift */
d75bc93d
TS		 189 2, /* size (0 = byte, 1 = short, 2 = long) */
190 16, /* bitsize */
b34976b6 191 FALSE, /* pc_relative */
d75bc93d
TS		 192 0, /* bitpos */
193 complain_overflow_dont, /* complain_on_overflow */
30ac9238 194 _bfd_mips_elf_hi16_reloc, /* special_function */
d75bc93d 195 "R_MIPS_HI16", /* name */
b34976b6 196 TRUE, /* partial_inplace */
d75bc93d
TS		 197 0x0000ffff, /* src_mask */
198 0x0000ffff, /* dst_mask */
b34976b6 199 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 206 FALSE, /* pc_relative */
d75bc93d
TS		 207 0, /* bitpos */
208 complain_overflow_dont, /* complain_on_overflow */
30ac9238 209 _bfd_mips_elf_lo16_reloc, /* special_function */
d75bc93d 210 "R_MIPS_LO16", /* name */
b34976b6 211 TRUE, /* partial_inplace */
d75bc93d
TS		 212 0x0000ffff, /* src_mask */
213 0x0000ffff, /* dst_mask */
b34976b6 214 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 221 FALSE, /* pc_relative */
d75bc93d
TS		 222 0, /* bitpos */
223 complain_overflow_signed, /* complain_on_overflow */
c6e90b02 224 _bfd_mips_elf32_gprel16_reloc, /* special_function */
d75bc93d 225 "R_MIPS_GPREL16", /* name */
b34976b6 226 TRUE, /* partial_inplace */
d75bc93d
TS		 227 0x0000ffff, /* src_mask */
228 0x0000ffff, /* dst_mask */
b34976b6 229 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 236 FALSE, /* pc_relative */
d75bc93d
TS		 237 0, /* bitpos */
238 complain_overflow_signed, /* complain_on_overflow */
c6e90b02 239 _bfd_mips_elf32_gprel16_reloc, /* special_function */
d75bc93d 240 "R_MIPS_LITERAL", /* name */
b34976b6 241 TRUE, /* partial_inplace */
d75bc93d
TS		 242 0x0000ffff, /* src_mask */
243 0x0000ffff, /* dst_mask */
b34976b6 244 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 251 FALSE, /* pc_relative */
d75bc93d
TS		 252 0, /* bitpos */
253 complain_overflow_signed, /* complain_on_overflow */
30ac9238 254 _bfd_mips_elf_got16_reloc, /* special_function */
d75bc93d 255 "R_MIPS_GOT16", /* name */
b34976b6 256 TRUE, /* partial_inplace */
d75bc93d
TS		 257 0x0000ffff, /* src_mask */
258 0x0000ffff, /* dst_mask */
b34976b6 259 FALSE), /* pcrel_offset */
d75bc93d 260
bad36eac
DJ		 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. */
d75bc93d 264 HOWTO (R_MIPS_PC16, /* type */
bad36eac 265 2, /* rightshift */
d75bc93d
TS		 266 2, /* size (0 = byte, 1 = short, 2 = long) */
267 16, /* bitsize */
b34976b6 268 TRUE, /* pc_relative */
d75bc93d
TS		 269 0, /* bitpos */
270 complain_overflow_signed, /* complain_on_overflow */
30ac9238 271 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 272 "R_MIPS_PC16", /* name */
b34976b6 273 TRUE, /* partial_inplace */
d75bc93d
TS		 274 0x0000ffff, /* src_mask */
275 0x0000ffff, /* dst_mask */
b34976b6 276 TRUE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 283 FALSE, /* pc_relative */
d75bc93d
TS		 284 0, /* bitpos */
285 complain_overflow_signed, /* complain_on_overflow */
30ac9238 286 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 287 "R_MIPS_CALL16", /* name */
b34976b6 288 TRUE, /* partial_inplace */
d75bc93d
TS		 289 0x0000ffff, /* src_mask */
290 0x0000ffff, /* dst_mask */
b34976b6 291 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 298 FALSE, /* pc_relative */
d75bc93d
TS		 299 0, /* bitpos */
300 complain_overflow_dont, /* complain_on_overflow */
c6e90b02 301 mips_elf_gprel32_reloc, /* special_function */
d75bc93d 302 "R_MIPS_GPREL32", /* name */
b34976b6 303 TRUE, /* partial_inplace */
d75bc93d
TS		 304 0xffffffff, /* src_mask */
305 0xffffffff, /* dst_mask */
b34976b6 306 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 319 FALSE, /* pc_relative */
d75bc93d
TS		 320 6, /* bitpos */
321 complain_overflow_bitfield, /* complain_on_overflow */
30ac9238 322 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 323 "R_MIPS_SHIFT5", /* name */
b34976b6 324 TRUE, /* partial_inplace */
d75bc93d
TS		 325 0x000007c0, /* src_mask */
326 0x000007c0, /* dst_mask */
b34976b6 327 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 336 FALSE, /* pc_relative */
d75bc93d
TS		 337 6, /* bitpos */
338 complain_overflow_bitfield, /* complain_on_overflow */
30ac9238 339 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 340 "R_MIPS_SHIFT6", /* name */
b34976b6 341 TRUE, /* partial_inplace */
d75bc93d
TS		 342 0x000007c4, /* src_mask */
343 0x000007c4, /* dst_mask */
b34976b6 344 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 351 FALSE, /* pc_relative */
d75bc93d
TS		 352 0, /* bitpos */
353 complain_overflow_dont, /* complain_on_overflow */
354 mips32_64bit_reloc, /* special_function */
355 "R_MIPS_64", /* name */
b34976b6 356 TRUE, /* partial_inplace */
d75bc93d
TS		 357 MINUS_ONE, /* src_mask */
358 MINUS_ONE, /* dst_mask */
b34976b6 359 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 366 FALSE, /* pc_relative */
d75bc93d
TS		 367 0, /* bitpos */
368 complain_overflow_signed, /* complain_on_overflow */
30ac9238 369 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 370 "R_MIPS_GOT_DISP", /* name */
b34976b6 371 TRUE, /* partial_inplace */
d75bc93d
TS		 372 0x0000ffff, /* src_mask */
373 0x0000ffff, /* dst_mask */
b34976b6 374 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 381 FALSE, /* pc_relative */
d75bc93d
TS		 382 0, /* bitpos */
383 complain_overflow_signed, /* complain_on_overflow */
30ac9238 384 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 385 "R_MIPS_GOT_PAGE", /* name */
b34976b6 386 TRUE, /* partial_inplace */
d75bc93d
TS		 387 0x0000ffff, /* src_mask */
388 0x0000ffff, /* dst_mask */
b34976b6 389 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 396 FALSE, /* pc_relative */
d75bc93d
TS		 397 0, /* bitpos */
398 complain_overflow_signed, /* complain_on_overflow */
30ac9238 399 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 400 "R_MIPS_GOT_OFST", /* name */
b34976b6 401 TRUE, /* partial_inplace */
d75bc93d
TS		 402 0x0000ffff, /* src_mask */
403 0x0000ffff, /* dst_mask */
b34976b6 404 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 411 FALSE, /* pc_relative */
d75bc93d
TS		 412 0, /* bitpos */
413 complain_overflow_dont, /* complain_on_overflow */
30ac9238 414 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 415 "R_MIPS_GOT_HI16", /* name */
b34976b6 416 TRUE, /* partial_inplace */
d75bc93d
TS		 417 0x0000ffff, /* src_mask */
418 0x0000ffff, /* dst_mask */
b34976b6 419 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 426 FALSE, /* pc_relative */
d75bc93d
TS		 427 0, /* bitpos */
428 complain_overflow_dont, /* complain_on_overflow */
30ac9238 429 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 430 "R_MIPS_GOT_LO16", /* name */
b34976b6 431 TRUE, /* partial_inplace */
d75bc93d
TS		 432 0x0000ffff, /* src_mask */
433 0x0000ffff, /* dst_mask */
b34976b6 434 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 441 FALSE, /* pc_relative */
d75bc93d
TS		 442 0, /* bitpos */
443 complain_overflow_dont, /* complain_on_overflow */
30ac9238 444 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 445 "R_MIPS_SUB", /* name */
b34976b6 446 TRUE, /* partial_inplace */
d75bc93d
TS		 447 MINUS_ONE, /* src_mask */
448 MINUS_ONE, /* dst_mask */
b34976b6 449 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 461 FALSE, /* pc_relative */
d75bc93d
TS		 462 0, /* bitpos */
463 complain_overflow_dont, /* complain_on_overflow */
30ac9238 464 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 465 "R_MIPS_HIGHER", /* name */
b34976b6 466 TRUE, /* partial_inplace */
d75bc93d
TS		 467 0x0000ffff, /* src_mask */
468 0x0000ffff, /* dst_mask */
b34976b6 469 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 476 FALSE, /* pc_relative */
d75bc93d
TS		 477 0, /* bitpos */
478 complain_overflow_dont, /* complain_on_overflow */
30ac9238 479 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 480 "R_MIPS_HIGHEST", /* name */
b34976b6 481 TRUE, /* partial_inplace */
d75bc93d
TS		 482 0x0000ffff, /* src_mask */
483 0x0000ffff, /* dst_mask */
b34976b6 484 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 491 FALSE, /* pc_relative */
d75bc93d
TS		 492 0, /* bitpos */
493 complain_overflow_dont, /* complain_on_overflow */
30ac9238 494 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 495 "R_MIPS_CALL_HI16", /* name */
b34976b6 496 TRUE, /* partial_inplace */
d75bc93d
TS		 497 0x0000ffff, /* src_mask */
498 0x0000ffff, /* dst_mask */
b34976b6 499 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 506 FALSE, /* pc_relative */
d75bc93d
TS		 507 0, /* bitpos */
508 complain_overflow_dont, /* complain_on_overflow */
30ac9238 509 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 510 "R_MIPS_CALL_LO16", /* name */
b34976b6 511 TRUE, /* partial_inplace */
d75bc93d
TS		 512 0x0000ffff, /* src_mask */
513 0x0000ffff, /* dst_mask */
b34976b6 514 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 521 FALSE, /* pc_relative */
d75bc93d
TS		 522 0, /* bitpos */
523 complain_overflow_dont, /* complain_on_overflow */
30ac9238 524 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 525 "R_MIPS_SCN_DISP", /* name */
b34976b6 526 TRUE, /* partial_inplace */
d75bc93d
TS		 527 0xffffffff, /* src_mask */
528 0xffffffff, /* dst_mask */
b34976b6 529 FALSE), /* pcrel_offset */
d75bc93d
TS		 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 */
b34976b6 542 FALSE, /* pc_relative */
d75bc93d
TS		 543 0, /* bitpos */
544 complain_overflow_dont, /* complain_on_overflow */
30ac9238 545 _bfd_mips_elf_generic_reloc, /* special_function */
d75bc93d 546 "R_MIPS_JALR", /* name */
b34976b6 547 FALSE, /* partial_inplace */
d75bc93d
TS		 548 0x00000000, /* src_mask */
549 0x00000000, /* dst_mask */
b34976b6 550 FALSE), /* pcrel_offset */
0f20cc35
DJ		 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 */
d75bc93d
TS		 705};
706
c6e90b02
TS		 707/* The reloc used for BFD_RELOC_CTOR when doing a 64 bit link. This
708 is a hack to make the linker think that we need 64 bit values. */
709static reloc_howto_type elf_mips_ctor64_howto =
710 HOWTO (R_MIPS_64, /* type */
252b5132 711 0, /* rightshift */
c6e90b02 712 4, /* size (0 = byte, 1 = short, 2 = long) */
252b5132 713 32, /* bitsize */
b34976b6 714 FALSE, /* pc_relative */
252b5132 715 0, /* bitpos */
c6e90b02
TS		 716 complain_overflow_signed, /* complain_on_overflow */
717 mips32_64bit_reloc, /* special_function */
718 "R_MIPS_64", /* name */
b34976b6 719 TRUE, /* partial_inplace */
c6e90b02 720 0xffffffff, /* src_mask */
252b5132 721 0xffffffff, /* dst_mask */
b34976b6 722 FALSE); /* pcrel_offset */
252b5132 723
d6f16593
MR		 724static reloc_howto_type elf_mips16_howto_table_rel[] =
725{
726 /* The reloc used for the mips16 jump instruction. */
c6e90b02 727 HOWTO (R_MIPS16_26, /* type */
252b5132
RH		 728 2, /* rightshift */
729 2, /* size (0 = byte, 1 = short, 2 = long) */
730 26, /* bitsize */
b34976b6 731 FALSE, /* pc_relative */
252b5132
RH		 732 0, /* bitpos */
733 complain_overflow_dont, /* complain_on_overflow */
c6e90b02
TS		 734 /* This needs complex overflow
735 detection, because the upper four
736 bits must match the PC. */
737 mips16_jump_reloc, /* special_function */
738 "R_MIPS16_26", /* name */
b34976b6 739 TRUE, /* partial_inplace */
c6e90b02
TS		 740 0x3ffffff, /* src_mask */
741 0x3ffffff, /* dst_mask */
d6f16593 742 FALSE), /* pcrel_offset */
252b5132 743
d6f16593 744 /* The reloc used for the mips16 gprel instruction. */
c6e90b02 745 HOWTO (R_MIPS16_GPREL, /* type */
252b5132
RH		 746 0, /* rightshift */
747 2, /* size (0 = byte, 1 = short, 2 = long) */
748 16, /* bitsize */
b34976b6 749 FALSE, /* pc_relative */
252b5132 750 0, /* bitpos */
c6e90b02
TS		 751 complain_overflow_signed, /* complain_on_overflow */
752 mips16_gprel_reloc, /* special_function */
753 "R_MIPS16_GPREL", /* name */
b34976b6 754 TRUE, /* partial_inplace */
d6f16593
MR		 755 0x0000ffff, /* src_mask */
756 0x0000ffff, /* dst_mask */
757 FALSE), /* pcrel_offset */
758
759 /* A placeholder for MIPS16 reference to global offset table. */
760 EMPTY_HOWTO (R_MIPS16_GOT16),
761
762 /* A placeholder for MIPS16 16 bit call through global offset table. */
763 EMPTY_HOWTO (R_MIPS16_CALL16),
764
765 /* MIPS16 high 16 bits of symbol value. */
766 HOWTO (R_MIPS16_HI16, /* type */
767 16, /* rightshift */
768 2, /* size (0 = byte, 1 = short, 2 = long) */
769 16, /* bitsize */
770 FALSE, /* pc_relative */
771 0, /* bitpos */
772 complain_overflow_dont, /* complain_on_overflow */
773 _bfd_mips_elf_hi16_reloc, /* special_function */
774 "R_MIPS16_HI16", /* name */
775 TRUE, /* partial_inplace */
776 0x0000ffff, /* src_mask */
777 0x0000ffff, /* dst_mask */
778 FALSE), /* pcrel_offset */
779
780 /* MIPS16 low 16 bits of symbol value. */
781 HOWTO (R_MIPS16_LO16, /* type */
782 0, /* rightshift */
783 2, /* size (0 = byte, 1 = short, 2 = long) */
784 16, /* bitsize */
785 FALSE, /* pc_relative */
786 0, /* bitpos */
787 complain_overflow_dont, /* complain_on_overflow */
788 _bfd_mips_elf_lo16_reloc, /* special_function */
789 "R_MIPS16_LO16", /* name */
790 TRUE, /* partial_inplace */
791 0x0000ffff, /* src_mask */
792 0x0000ffff, /* dst_mask */
793 FALSE), /* pcrel_offset */
794};
252b5132 795
c6e90b02
TS		 796/* 16 bit offset for pc-relative branches. */
797static reloc_howto_type elf_mips_gnu_rel16_s2 =
798 HOWTO (R_MIPS_GNU_REL16_S2, /* type */
799 2, /* rightshift */
252b5132
RH		 800 2, /* size (0 = byte, 1 = short, 2 = long) */
801 16, /* bitsize */
b34976b6 802 TRUE, /* pc_relative */
252b5132
RH		 803 0, /* bitpos */
804 complain_overflow_signed, /* complain_on_overflow */
30ac9238 805 _bfd_mips_elf_generic_reloc, /* special_function */
c6e90b02 806 "R_MIPS_GNU_REL16_S2", /* name */
b34976b6 807 TRUE, /* partial_inplace */
c6e90b02
TS		 808 0xffff, /* src_mask */
809 0xffff, /* dst_mask */
b34976b6 810 TRUE); /* pcrel_offset */
252b5132 811
092dcd75
CD		 812/* 32 bit pc-relative. This was a GNU extension used by embedded-PIC.
813 It was co-opted by mips-linux for exception-handling data. It is no
814 longer used, but should continue to be supported by the linker for
815 backward compatibility. (GCC stopped using it in May, 2004.) */
816static reloc_howto_type elf_mips_gnu_pcrel32 =
817 HOWTO (R_MIPS_PC32, /* type */
818 0, /* rightshift */
819 2, /* size (0 = byte, 1 = short, 2 = long) */
820 32, /* bitsize */
821 TRUE, /* pc_relative */
822 0, /* bitpos */
823 complain_overflow_signed, /* complain_on_overflow */
824 _bfd_mips_elf_generic_reloc, /* special_function */
825 "R_MIPS_PC32", /* name */
826 TRUE, /* partial_inplace */
827 0xffffffff, /* src_mask */
828 0xffffffff, /* dst_mask */
829 TRUE); /* pcrel_offset */
830
c6e90b02
TS		 831/* GNU extension to record C++ vtable hierarchy */
832static reloc_howto_type elf_mips_gnu_vtinherit_howto =
833 HOWTO (R_MIPS_GNU_VTINHERIT, /* type */
252b5132
RH		 834 0, /* rightshift */
835 2, /* size (0 = byte, 1 = short, 2 = long) */
c6e90b02 836 0, /* bitsize */
b34976b6 837 FALSE, /* pc_relative */
252b5132 838 0, /* bitpos */
c6e90b02
TS		 839 complain_overflow_dont, /* complain_on_overflow */
840 NULL, /* special_function */
841 "R_MIPS_GNU_VTINHERIT", /* name */
b34976b6 842 FALSE, /* partial_inplace */
d75bc93d 843 0, /* src_mask */
c6e90b02 844 0, /* dst_mask */
b34976b6 845 FALSE); /* pcrel_offset */
252b5132 846
c6e90b02
TS		 847/* GNU extension to record C++ vtable member usage */
848static reloc_howto_type elf_mips_gnu_vtentry_howto =
849 HOWTO (R_MIPS_GNU_VTENTRY, /* type */
252b5132
RH		 850 0, /* rightshift */
851 2, /* size (0 = byte, 1 = short, 2 = long) */
c6e90b02 852 0, /* bitsize */
b34976b6 853 FALSE, /* pc_relative */
252b5132
RH		 854 0, /* bitpos */
855 complain_overflow_dont, /* complain_on_overflow */
c6e90b02
TS		 856 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
857 "R_MIPS_GNU_VTENTRY", /* name */
b34976b6 858 FALSE, /* partial_inplace */
d75bc93d 859 0, /* src_mask */
c6e90b02 860 0, /* dst_mask */
b34976b6 861 FALSE); /* pcrel_offset */
252b5132 862
b34976b6 863/* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a
c6e90b02 864 dangerous relocation. */
252b5132 865
b34976b6 866static bfd_boolean
11a2be4d 867mips_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp)
252b5132 868{
c6e90b02
TS		 869 unsigned int count;
870 asymbol **sym;
871 unsigned int i;
e92d460e 872
c6e90b02
TS		 873 /* If we've already figured out what GP will be, just return it. */
874 *pgp = _bfd_get_gp_value (output_bfd);
875 if (*pgp)
b34976b6 876 return TRUE;
c6e90b02
TS		 877
878 count = bfd_get_symcount (output_bfd);
879 sym = bfd_get_outsymbols (output_bfd);
252b5132 880
c6e90b02
TS		 881 /* The linker script will have created a symbol named `_gp' with the
882 appropriate value. */
11a2be4d 883 if (sym == NULL)
c6e90b02
TS		 884 i = count;
885 else
252b5132 886 {
c6e90b02
TS		 887 for (i = 0; i < count; i++, sym++)
888 {
889 register const char *name;
890
891 name = bfd_asymbol_name (*sym);
892 if (*name == '_' && strcmp (name, "_gp") == 0)
893 {
894 *pgp = bfd_asymbol_value (*sym);
895 _bfd_set_gp_value (output_bfd, *pgp);
896 break;
897 }
898 }
252b5132
RH		 899 }
900
c6e90b02 901 if (i >= count)
252b5132 902 {
c6e90b02
TS		 903 /* Only get the error once. */
904 *pgp = 4;
905 _bfd_set_gp_value (output_bfd, *pgp);
b34976b6 906 return FALSE;
252b5132
RH		 907 }
908
b34976b6 909 return TRUE;
252b5132
RH		 910}
911
c6e90b02
TS		 912/* We have to figure out the gp value, so that we can adjust the
913 symbol value correctly. We look up the symbol _gp in the output
914 BFD. If we can't find it, we're stuck. We cache it in the ELF
915 target data. We don't need to adjust the symbol value for an
1049f94e 916 external symbol if we are producing relocatable output. */
252b5132 917
c6e90b02 918static bfd_reloc_status_type
11a2be4d
RS		 919mips_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable,
920 char **error_message, bfd_vma *pgp)
252b5132 921{
c6e90b02 922 if (bfd_is_und_section (symbol->section)
1049f94e 923 && ! relocatable)
252b5132 924 {
c6e90b02
TS		 925 *pgp = 0;
926 return bfd_reloc_undefined;
252b5132
RH		 927 }
928
c6e90b02
TS		 929 *pgp = _bfd_get_gp_value (output_bfd);
930 if (*pgp == 0
1049f94e 931 && (! relocatable
c6e90b02 932 || (symbol->flags & BSF_SECTION_SYM) != 0))
252b5132 933 {
1049f94e 934 if (relocatable)
252b5132 935 {
c6e90b02
TS		 936 /* Make up a value. */
937 *pgp = symbol->section->output_section->vma + 0x4000;
938 _bfd_set_gp_value (output_bfd, *pgp);
252b5132 939 }
c6e90b02 940 else if (!mips_elf_assign_gp (output_bfd, pgp))
252b5132 941 {
c6e90b02
TS		 942 *error_message =
943 (char *) _("GP relative relocation when _gp not defined");
944 return bfd_reloc_dangerous;
252b5132 945 }
252b5132
RH		 946 }
947
c6e90b02
TS		 948 return bfd_reloc_ok;
949}
252b5132 950
c6e90b02
TS		 951/* Do a R_MIPS_GPREL16 relocation. This is a 16 bit value which must
952 become the offset from the gp register. This function also handles
953 R_MIPS_LITERAL relocations, although those can be handled more
954 cleverly because the entries in the .lit8 and .lit4 sections can be
955 merged. */
252b5132 956
c6e90b02 957bfd_reloc_status_type
11a2be4d
RS		 958_bfd_mips_elf32_gprel16_reloc (bfd *abfd, arelent *reloc_entry,
959 asymbol *symbol, void *data,
960 asection *input_section, bfd *output_bfd,
961 char **error_message)
c6e90b02 962{
1049f94e 963 bfd_boolean relocatable;
c6e90b02
TS		 964 bfd_reloc_status_type ret;
965 bfd_vma gp;
252b5132 966
254f0426
MR		 967 /* R_MIPS_LITERAL relocations are defined for local symbols only. */
968 if (reloc_entry->howto->type == R_MIPS_LITERAL
969 && output_bfd != NULL
970 && (symbol->flags & BSF_SECTION_SYM) == 0
971 && (symbol->flags & BSF_LOCAL) != 0)
972 {
973 *error_message = (char *)
974 _("literal relocation occurs for an external symbol");
975 return bfd_reloc_outofrange;
976 }
977
11a2be4d 978 if (output_bfd != NULL)
1049f94e 979 relocatable = TRUE;
c6e90b02
TS		 980 else
981 {
1049f94e 982 relocatable = FALSE;
c6e90b02
TS		 983 output_bfd = symbol->section->output_section->owner;
984 }
252b5132 985
1049f94e 986 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
c6e90b02
TS		 987 &gp);
988 if (ret != bfd_reloc_ok)
989 return ret;
252b5132 990
c6e90b02 991 return _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1049f94e 992 input_section, relocatable,
c6e90b02
TS		 993 data, gp);
994}
252b5132 995
cb7394f2
TS		 996/* Do a R_MIPS_GPREL32 relocation. This is a 32 bit value which must
997 become the offset from the gp register. */
252b5132 998
c6e90b02 999static bfd_reloc_status_type
11a2be4d
RS		 1000mips_elf_gprel32_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1001 void *data, asection *input_section, bfd *output_bfd,
1002 char **error_message)
c6e90b02 1003{
1049f94e 1004 bfd_boolean relocatable;
c6e90b02
TS		 1005 bfd_reloc_status_type ret;
1006 bfd_vma gp;
252b5132 1007
765f2ef6
MR		 1008 /* R_MIPS_GPREL32 relocations are defined for local symbols only. */
1009 if (output_bfd != NULL
1010 && (symbol->flags & BSF_SECTION_SYM) == 0
1011 && (symbol->flags & BSF_LOCAL) != 0)
1012 {
1013 *error_message = (char *)
1014 _("32bits gp relative relocation occurs for an external symbol");
1015 return bfd_reloc_outofrange;
1016 }
1017
11a2be4d 1018 if (output_bfd != NULL)
1049f94e 1019 relocatable = TRUE;
c6e90b02
TS		 1020 else
1021 {
1049f94e 1022 relocatable = FALSE;
c6e90b02 1023 output_bfd = symbol->section->output_section->owner;
c6e90b02 1024 }
252b5132 1025
1049f94e 1026 ret = mips_elf_final_gp (output_bfd, symbol, relocatable,
a7ebbfdf
TS		 1027 error_message, &gp);
1028 if (ret != bfd_reloc_ok)
1029 return ret;
1030
c6e90b02 1031 return gprel32_with_gp (abfd, symbol, reloc_entry, input_section,
1049f94e 1032 relocatable, data, gp);
c6e90b02 1033}
252b5132 1034
c6e90b02 1035static bfd_reloc_status_type
11a2be4d
RS		 1036gprel32_with_gp (bfd *abfd, asymbol *symbol, arelent *reloc_entry,
1037 asection *input_section, bfd_boolean relocatable,
1038 void *data, bfd_vma gp)
c6e90b02
TS		 1039{
1040 bfd_vma relocation;
a7ebbfdf 1041 bfd_vma val;
252b5132 1042
c6e90b02
TS		 1043 if (bfd_is_com_section (symbol->section))
1044 relocation = 0;
1045 else
1046 relocation = symbol->value;
252b5132 1047
c6e90b02
TS		 1048 relocation += symbol->section->output_section->vma;
1049 relocation += symbol->section->output_offset;
252b5132 1050
07515404 1051 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
c6e90b02 1052 return bfd_reloc_outofrange;
252b5132 1053
c6e90b02 1054 /* Set val to the offset into the section or symbol. */
a7ebbfdf
TS		 1055 val = reloc_entry->addend;
1056
1057 if (reloc_entry->howto->partial_inplace)
1058 val += bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
252b5132 1059
c6e90b02 1060 /* Adjust val for the final section location and GP value. If we
1049f94e 1061 are producing relocatable output, we don't want to do this for
c6e90b02 1062 an external symbol. */
1049f94e 1063 if (! relocatable
c6e90b02
TS		 1064 || (symbol->flags & BSF_SECTION_SYM) != 0)
1065 val += relocation - gp;
252b5132 1066
a7ebbfdf
TS		 1067 if (reloc_entry->howto->partial_inplace)
1068 bfd_put_32 (abfd, val, (bfd_byte *) data + reloc_entry->address);
1069 else
1070 reloc_entry->addend = val;
c6142e5d 1071
1049f94e 1072 if (relocatable)
c6e90b02 1073 reloc_entry->address += input_section->output_offset;
252b5132 1074
c6e90b02 1075 return bfd_reloc_ok;
252b5132
RH		 1076}
1077
c6e90b02
TS		 1078/* Handle a 64 bit reloc in a 32 bit MIPS ELF file. These are
1079 generated when addresses are 64 bits. The upper 32 bits are a simple
1080 sign extension. */
7403cb63 1081
c6e90b02 1082static bfd_reloc_status_type
30ac9238
RS		 1083mips32_64bit_reloc (bfd *abfd, arelent *reloc_entry,
1084 asymbol *symbol ATTRIBUTE_UNUSED,
1085 void *data, asection *input_section,
1086 bfd *output_bfd, char **error_message)
7403cb63 1087{
c6e90b02
TS		 1088 bfd_reloc_status_type r;
1089 arelent reloc32;
1090 unsigned long val;
1091 bfd_size_type addr;
7403cb63 1092
c6e90b02
TS		 1093 /* Do a normal 32 bit relocation on the lower 32 bits. */
1094 reloc32 = *reloc_entry;
1095 if (bfd_big_endian (abfd))
1096 reloc32.address += 4;
1097 reloc32.howto = &elf_mips_howto_table_rel[R_MIPS_32];
1098 r = bfd_perform_relocation (abfd, &reloc32, data, input_section,
1099 output_bfd, error_message);
be3ccd9c 1100
c6e90b02
TS		 1101 /* Sign extend into the upper 32 bits. */
1102 val = bfd_get_32 (abfd, (bfd_byte *) data + reloc32.address);
1103 if ((val & 0x80000000) != 0)
1104 val = 0xffffffff;
1105 else
1106 val = 0;
1107 addr = reloc_entry->address;
1108 if (bfd_little_endian (abfd))
1109 addr += 4;
11a2be4d 1110 bfd_put_32 (abfd, val, (bfd_byte *) data + addr);
c6e90b02
TS		 1111
1112 return r;
7403cb63
MM		 1113}
1114
c6e90b02 1115/* Handle a mips16 jump. */
252b5132 1116
c6e90b02 1117static bfd_reloc_status_type
11a2be4d
RS		 1118mips16_jump_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry,
1119 asymbol *symbol, void *data ATTRIBUTE_UNUSED,
1120 asection *input_section, bfd *output_bfd,
1121 char **error_message ATTRIBUTE_UNUSED)
252b5132 1122{
11a2be4d 1123 if (output_bfd != NULL
c6e90b02
TS		 1124 && (symbol->flags & BSF_SECTION_SYM) == 0
1125 && reloc_entry->addend == 0)
252b5132 1126 {
c6e90b02
TS		 1127 reloc_entry->address += input_section->output_offset;
1128 return bfd_reloc_ok;
1129 }
252b5132 1130
c6e90b02
TS		 1131 /* FIXME. */
1132 {
b34976b6 1133 static bfd_boolean warned;
252b5132 1134
c6e90b02
TS		 1135 if (! warned)
1136 (*_bfd_error_handler)
1137 (_("Linking mips16 objects into %s format is not supported"),
1138 bfd_get_target (input_section->output_section->owner));
b34976b6 1139 warned = TRUE;
c6e90b02 1140 }
252b5132 1141
c6e90b02
TS		 1142 return bfd_reloc_undefined;
1143}
252b5132 1144
c6e90b02 1145/* Handle a mips16 GP relative reloc. */
252b5132 1146
c6e90b02 1147static bfd_reloc_status_type
11a2be4d
RS		 1148mips16_gprel_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
1149 void *data, asection *input_section, bfd *output_bfd,
1150 char **error_message)
c6e90b02 1151{
1049f94e 1152 bfd_boolean relocatable;
c6e90b02 1153 bfd_reloc_status_type ret;
d6f16593 1154 bfd_byte *location;
c6e90b02 1155 bfd_vma gp;
252b5132 1156
a7ebbfdf
TS		 1157 /* If we're relocating, and this is an external symbol, we don't want
1158 to change anything. */
c6e90b02
TS		 1159 if (output_bfd != NULL
1160 && (symbol->flags & BSF_SECTION_SYM) == 0
a7ebbfdf 1161 && (symbol->flags & BSF_LOCAL) != 0)
c6e90b02
TS		 1162 {
1163 reloc_entry->address += input_section->output_offset;
1164 return bfd_reloc_ok;
1165 }
252b5132 1166
c6e90b02 1167 if (output_bfd != NULL)
1049f94e 1168 relocatable = TRUE;
c6e90b02
TS		 1169 else
1170 {
1049f94e 1171 relocatable = FALSE;
c6e90b02 1172 output_bfd = symbol->section->output_section->owner;
252b5132
RH		 1173 }
1174
1049f94e 1175 ret = mips_elf_final_gp (output_bfd, symbol, relocatable, error_message,
c6e90b02
TS		 1176 &gp);
1177 if (ret != bfd_reloc_ok)
1178 return ret;
252b5132 1179
d6f16593
MR		 1180 location = (bfd_byte *) data + reloc_entry->address;
1181 _bfd_mips16_elf_reloc_unshuffle (abfd, reloc_entry->howto->type, FALSE,
1182 location);
1183 ret = _bfd_mips_elf_gprel16_with_gp (abfd, symbol, reloc_entry,
1184 input_section, relocatable,
1185 data, gp);
1186 _bfd_mips16_elf_reloc_shuffle (abfd, reloc_entry->howto->type, !relocatable,
1187 location);
a7ebbfdf 1188
d6f16593 1189 return ret;
c6e90b02 1190}
7403cb63 1191
c6e90b02 1192/* A mapping from BFD reloc types to MIPS ELF reloc types. */
252b5132 1193
c6e90b02 1194struct elf_reloc_map {
cb7394f2
TS		 1195 bfd_reloc_code_real_type bfd_val;
1196 enum elf_mips_reloc_type elf_val;
c6e90b02 1197};
252b5132 1198
c6e90b02
TS		 1199static const struct elf_reloc_map mips_reloc_map[] =
1200{
28458e7e 1201 { BFD_RELOC_NONE, R_MIPS_NONE },
c6e90b02
TS		 1202 { BFD_RELOC_16, R_MIPS_16 },
1203 { BFD_RELOC_32, R_MIPS_32 },
cb7394f2 1204 /* There is no BFD reloc for R_MIPS_REL32. */
c6e90b02
TS		 1205 { BFD_RELOC_64, R_MIPS_64 },
1206 { BFD_RELOC_MIPS_JMP, R_MIPS_26 },
1207 { BFD_RELOC_HI16_S, R_MIPS_HI16 },
1208 { BFD_RELOC_LO16, R_MIPS_LO16 },
1209 { BFD_RELOC_GPREL16, R_MIPS_GPREL16 },
1210 { BFD_RELOC_MIPS_LITERAL, R_MIPS_LITERAL },
1211 { BFD_RELOC_MIPS_GOT16, R_MIPS_GOT16 },
bad36eac 1212 { BFD_RELOC_16_PCREL_S2, R_MIPS_PC16 },
c6e90b02
TS		 1213 { BFD_RELOC_MIPS_CALL16, R_MIPS_CALL16 },
1214 { BFD_RELOC_GPREL32, R_MIPS_GPREL32 },
1215 { BFD_RELOC_MIPS_GOT_HI16, R_MIPS_GOT_HI16 },
1216 { BFD_RELOC_MIPS_GOT_LO16, R_MIPS_GOT_LO16 },
1217 { BFD_RELOC_MIPS_CALL_HI16, R_MIPS_CALL_HI16 },
1218 { BFD_RELOC_MIPS_CALL_LO16, R_MIPS_CALL_LO16 },
1219 { BFD_RELOC_MIPS_SUB, R_MIPS_SUB },
1220 { BFD_RELOC_MIPS_GOT_PAGE, R_MIPS_GOT_PAGE },
1221 { BFD_RELOC_MIPS_GOT_OFST, R_MIPS_GOT_OFST },
0f20cc35
DJ		 1222 { BFD_RELOC_MIPS_GOT_DISP, R_MIPS_GOT_DISP },
1223 { BFD_RELOC_MIPS_TLS_DTPMOD32, R_MIPS_TLS_DTPMOD32 },
1224 { BFD_RELOC_MIPS_TLS_DTPREL32, R_MIPS_TLS_DTPREL32 },
1225 { BFD_RELOC_MIPS_TLS_DTPMOD64, R_MIPS_TLS_DTPMOD64 },
1226 { BFD_RELOC_MIPS_TLS_DTPREL64, R_MIPS_TLS_DTPREL64 },
1227 { BFD_RELOC_MIPS_TLS_GD, R_MIPS_TLS_GD },
1228 { BFD_RELOC_MIPS_TLS_LDM, R_MIPS_TLS_LDM },
1229 { BFD_RELOC_MIPS_TLS_DTPREL_HI16, R_MIPS_TLS_DTPREL_HI16 },
1230 { BFD_RELOC_MIPS_TLS_DTPREL_LO16, R_MIPS_TLS_DTPREL_LO16 },
1231 { BFD_RELOC_MIPS_TLS_GOTTPREL, R_MIPS_TLS_GOTTPREL },
1232 { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 },
1233 { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 },
1234 { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 },
1235 { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }
c6e90b02 1236};
252b5132 1237
d6f16593
MR		 1238static const struct elf_reloc_map mips16_reloc_map[] =
1239{
1240 { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min },
1241 { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min },
1242 { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min },
1243 { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min },
1244};
1245
c6e90b02 1246/* Given a BFD reloc type, return a howto structure. */
252b5132 1247
c6e90b02 1248static reloc_howto_type *
11a2be4d 1249bfd_elf32_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
252b5132 1250{
c6e90b02 1251 unsigned int i;
cb7394f2 1252 reloc_howto_type *howto_table = elf_mips_howto_table_rel;
d6f16593 1253 reloc_howto_type *howto16_table = elf_mips16_howto_table_rel;
252b5132 1254
cb7394f2
TS		 1255 for (i = 0; i < sizeof (mips_reloc_map) / sizeof (struct elf_reloc_map);
1256 i++)
252b5132 1257 {
cb7394f2
TS		 1258 if (mips_reloc_map[i].bfd_val == code)
1259 return &howto_table[(int) mips_reloc_map[i].elf_val];
252b5132
RH		 1260 }
1261
d6f16593
MR		 1262 for (i = 0; i < sizeof (mips16_reloc_map) / sizeof (struct elf_reloc_map);
1263 i++)
1264 {
1265 if (mips16_reloc_map[i].bfd_val == code)
1266 return &howto16_table[(int) mips16_reloc_map[i].elf_val];
1267 }
1268
c6e90b02 1269 switch (code)
252b5132 1270 {
c6e90b02
TS		 1271 default:
1272 bfd_set_error (bfd_error_bad_value);
1273 return NULL;
252b5132 1274
c6e90b02
TS		 1275 case BFD_RELOC_CTOR:
1276 /* We need to handle BFD_RELOC_CTOR specially.
1277 Select the right relocation (R_MIPS_32 or R_MIPS_64) based on the
69931e60
AO		 1278 size of addresses of the ABI. */
1279 if ((elf_elfheader (abfd)->e_flags & (E_MIPS_ABI_O64
1280 | E_MIPS_ABI_EABI64)) != 0)
c6e90b02 1281 return &elf_mips_ctor64_howto;
69931e60
AO		 1282 else
1283 return &howto_table[(int) R_MIPS_32];
252b5132 1284
c6e90b02
TS		 1285 case BFD_RELOC_VTABLE_INHERIT:
1286 return &elf_mips_gnu_vtinherit_howto;
1287 case BFD_RELOC_VTABLE_ENTRY:
1288 return &elf_mips_gnu_vtentry_howto;
092dcd75
CD		 1289 case BFD_RELOC_32_PCREL:
1290 return &elf_mips_gnu_pcrel32;
c6e90b02
TS		 1291 }
1292}
252b5132 1293
947216bf 1294/* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
252b5132 1295
c6e90b02 1296static reloc_howto_type *
11a2be4d
RS		 1297mips_elf32_rtype_to_howto (unsigned int r_type,
1298 bfd_boolean rela_p ATTRIBUTE_UNUSED)
c6e90b02
TS		 1299{
1300 switch (r_type)
1301 {
c6e90b02
TS		 1302 case R_MIPS_GNU_VTINHERIT:
1303 return &elf_mips_gnu_vtinherit_howto;
c6e90b02
TS		 1304 case R_MIPS_GNU_VTENTRY:
1305 return &elf_mips_gnu_vtentry_howto;
c6e90b02
TS		 1306 case R_MIPS_GNU_REL16_S2:
1307 return &elf_mips_gnu_rel16_s2;
092dcd75
CD		 1308 case R_MIPS_PC32:
1309 return &elf_mips_gnu_pcrel32;
c6e90b02 1310 default:
d6f16593
MR		 1311 if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max)
1312 return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min];
c6e90b02
TS		 1313 BFD_ASSERT (r_type < (unsigned int) R_MIPS_max);
1314 return &elf_mips_howto_table_rel[r_type];
1315 }
1316}
252b5132 1317
947216bf 1318/* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */
252b5132 1319
c6e90b02 1320static void
11a2be4d 1321mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
c6e90b02 1322{
0a44bf69 1323 const struct elf_backend_data *bed;
c6e90b02 1324 unsigned int r_type;
252b5132 1325
c6e90b02 1326 r_type = ELF32_R_TYPE (dst->r_info);
0a44bf69
RS		 1327 bed = get_elf_backend_data (abfd);
1328 cache_ptr->howto = bed->elf_backend_mips_rtype_to_howto (r_type, FALSE);
252b5132 1329
c6e90b02
TS		 1330 /* The addend for a GPREL16 or LITERAL relocation comes from the GP
1331 value for the object file. We get the addend now, rather than
1332 when we do the relocation, because the symbol manipulations done
1333 by the linker may cause us to lose track of the input BFD. */
1334 if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0
1335 && (r_type == (unsigned int) R_MIPS_GPREL16
1336 || r_type == (unsigned int) R_MIPS_LITERAL))
1337 cache_ptr->addend = elf_gp (abfd);
1338}
5499724a 1339
947216bf 1340/* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */
252b5132 1341
c6e90b02 1342static void
11a2be4d 1343mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)
c6e90b02 1344{
947216bf 1345 mips_info_to_howto_rel (abfd, cache_ptr, dst);
252b5132 1346
c6e90b02 1347 /* If we ever need to do any extra processing with dst->r_addend
947216bf 1348 (the field omitted in an Elf_Internal_Rel) we can do it here. */
c6e90b02
TS		 1349}
1350\f
1351/* Determine whether a symbol is global for the purposes of splitting
1352 the symbol table into global symbols and local symbols. At least
1353 on Irix 5, this split must be between section symbols and all other
1354 symbols. On most ELF targets the split is between static symbols
1355 and externally visible symbols. */
252b5132 1356
b34976b6 1357static bfd_boolean
11a2be4d 1358mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym)
c6e90b02
TS		 1359{
1360 if (SGI_COMPAT (abfd))
1361 return (sym->flags & BSF_SECTION_SYM) == 0;
1362 else
1363 return ((sym->flags & (BSF_GLOBAL | BSF_WEAK)) != 0
1364 || bfd_is_und_section (bfd_get_section (sym))
1365 || bfd_is_com_section (bfd_get_section (sym)));
1366}
1367\f
1368/* Set the right machine number for a MIPS ELF file. */
7403cb63 1369
b34976b6 1370static bfd_boolean
11a2be4d 1371mips_elf32_object_p (bfd *abfd)
c6e90b02
TS		 1372{
1373 unsigned long mach;
103186c6 1374
c6e90b02
TS		 1375 /* Irix 5 and 6 are broken. Object file symbol tables are not always
1376 sorted correctly such that local symbols precede global symbols,
1377 and the sh_info field in the symbol table is not always right. */
1378 if (SGI_COMPAT (abfd))
b34976b6 1379 elf_bad_symtab (abfd) = TRUE;
103186c6 1380
8a397dad 1381 if (ABI_N32_P (abfd))
b34976b6 1382 return FALSE;
8a397dad 1383
c6e90b02
TS		 1384 mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags);
1385 bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach);
252b5132 1386
b34976b6 1387 return TRUE;
c6e90b02
TS		 1388}
1389\f
1390/* MIPS ELF local labels start with '$', not 'L'. */
252b5132 1391
b34976b6 1392static bfd_boolean
11a2be4d 1393mips_elf_is_local_label_name (bfd *abfd, const char *name)
c6e90b02
TS		 1394{
1395 if (name[0] == '$')
b34976b6 1396 return TRUE;
252b5132 1397
c6e90b02
TS		 1398 /* On Irix 6, the labels go back to starting with '.', so we accept
1399 the generic ELF local label syntax as well. */
1400 return _bfd_elf_is_local_label_name (abfd, name);
252b5132
RH		 1401}
1402\f
c6e90b02 1403/* Support for core dump NOTE sections. */
b34976b6 1404static bfd_boolean
11a2be4d 1405elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
bb0082d6
AM		 1406{
1407 int offset;
eea6121a 1408 unsigned int size;
bb0082d6
AM		 1409
1410 switch (note->descsz)
1411 {
1412 default:
b34976b6 1413 return FALSE;
bb0082d6
AM		 1414
1415 case 256: /* Linux/MIPS */
1416 /* pr_cursig */
1417 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1418
1419 /* pr_pid */
1420 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
1421
1422 /* pr_reg */
1423 offset = 72;
eea6121a 1424 size = 180;
bb0082d6
AM		 1425
1426 break;
1427 }
1428
1429 /* Make a ".reg/999" section. */
936e320b 1430 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 1431 size, note->descpos + offset);
bb0082d6
AM		 1432}
1433
b34976b6 1434static bfd_boolean
11a2be4d 1435elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
bb0082d6
AM		 1436{
1437 switch (note->descsz)
1438 {
1439 default:
b34976b6 1440 return FALSE;
bb0082d6
AM		 1441
1442 case 128: /* Linux/MIPS elf_prpsinfo */
1443 elf_tdata (abfd)->core_program
1444 = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
1445 elf_tdata (abfd)->core_command
1446 = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
1447 }
1448
1449 /* Note that for some reason, a spurious space is tacked
1450 onto the end of the args in some (at least one anyway)
1451 implementations, so strip it off if it exists. */
1452
1453 {
1454 char *command = elf_tdata (abfd)->core_command;
1455 int n = strlen (command);
1456
1457 if (0 < n && command[n - 1] == ' ')
1458 command[n - 1] = '\0';
1459 }
1460
b34976b6 1461 return TRUE;
bb0082d6
AM		 1462}
1463\f
c6e90b02
TS		 1464/* Depending on the target vector we generate some version of Irix
1465 executables or "normal" MIPS ELF ABI executables. */
1466static irix_compat_t
11a2be4d 1467elf32_mips_irix_compat (bfd *abfd)
c6e90b02 1468{
cb7394f2
TS		 1469 if ((abfd->xvec == &bfd_elf32_bigmips_vec)
1470 || (abfd->xvec == &bfd_elf32_littlemips_vec))
c6e90b02 1471 return ict_irix5;
cb7394f2
TS		 1472 else
1473 return ict_none;
c6e90b02 1474}
73d074b4 1475\f
252b5132
RH		 1476/* ECOFF swapping routines. These are used when dealing with the
1477 .mdebug section, which is in the ECOFF debugging format. */
be3ccd9c 1478static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
252b5132
RH		 1479 /* Symbol table magic number. */
1480 magicSym,
1481 /* Alignment of debugging information. E.g., 4. */
1482 4,
1483 /* Sizes of external symbolic information. */
1484 sizeof (struct hdr_ext),
1485 sizeof (struct dnr_ext),
1486 sizeof (struct pdr_ext),
1487 sizeof (struct sym_ext),
1488 sizeof (struct opt_ext),
1489 sizeof (struct fdr_ext),
1490 sizeof (struct rfd_ext),
1491 sizeof (struct ext_ext),
1492 /* Functions to swap in external symbolic data. */
1493 ecoff_swap_hdr_in,
1494 ecoff_swap_dnr_in,
1495 ecoff_swap_pdr_in,
1496 ecoff_swap_sym_in,
1497 ecoff_swap_opt_in,
1498 ecoff_swap_fdr_in,
1499 ecoff_swap_rfd_in,
1500 ecoff_swap_ext_in,
1501 _bfd_ecoff_swap_tir_in,
1502 _bfd_ecoff_swap_rndx_in,
1503 /* Functions to swap out external symbolic data. */
1504 ecoff_swap_hdr_out,
1505 ecoff_swap_dnr_out,
1506 ecoff_swap_pdr_out,
1507 ecoff_swap_sym_out,
1508 ecoff_swap_opt_out,
1509 ecoff_swap_fdr_out,
1510 ecoff_swap_rfd_out,
1511 ecoff_swap_ext_out,
1512 _bfd_ecoff_swap_tir_out,
1513 _bfd_ecoff_swap_rndx_out,
1514 /* Function to read in symbolic data. */
1515 _bfd_mips_elf_read_ecoff_info
1516};
1517\f
252b5132
RH		 1518#define ELF_ARCH bfd_arch_mips
1519#define ELF_MACHINE_CODE EM_MIPS
1520
b34976b6
AM		 1521#define elf_backend_collect TRUE
1522#define elf_backend_type_change_ok TRUE
1523#define elf_backend_can_gc_sections TRUE
3f830999 1524#define elf_info_to_howto mips_info_to_howto_rela
252b5132
RH		 1525#define elf_info_to_howto_rel mips_info_to_howto_rel
1526#define elf_backend_sym_is_global mips_elf_sym_is_global
c6e90b02 1527#define elf_backend_object_p mips_elf32_object_p
d75bc93d
TS		 1528#define elf_backend_symbol_processing _bfd_mips_elf_symbol_processing
1529#define elf_backend_section_processing _bfd_mips_elf_section_processing
103186c6 1530#define elf_backend_section_from_shdr _bfd_mips_elf_section_from_shdr
252b5132
RH		 1531#define elf_backend_fake_sections _bfd_mips_elf_fake_sections
1532#define elf_backend_section_from_bfd_section \
1533 _bfd_mips_elf_section_from_bfd_section
103186c6 1534#define elf_backend_add_symbol_hook _bfd_mips_elf_add_symbol_hook
d75bc93d
TS		 1535#define elf_backend_link_output_symbol_hook \
1536 _bfd_mips_elf_link_output_symbol_hook
103186c6
MM		 1537#define elf_backend_create_dynamic_sections \
1538 _bfd_mips_elf_create_dynamic_sections
1539#define elf_backend_check_relocs _bfd_mips_elf_check_relocs
1540#define elf_backend_adjust_dynamic_symbol \
1541 _bfd_mips_elf_adjust_dynamic_symbol
1542#define elf_backend_always_size_sections \
1543 _bfd_mips_elf_always_size_sections
1544#define elf_backend_size_dynamic_sections \
1545 _bfd_mips_elf_size_dynamic_sections
1546#define elf_backend_relocate_section _bfd_mips_elf_relocate_section
103186c6
MM		 1547#define elf_backend_finish_dynamic_symbol \
1548 _bfd_mips_elf_finish_dynamic_symbol
1549#define elf_backend_finish_dynamic_sections \
1550 _bfd_mips_elf_finish_dynamic_sections
d75bc93d
TS		 1551#define elf_backend_final_write_processing \
1552 _bfd_mips_elf_final_write_processing
1553#define elf_backend_additional_program_headers \
1554 _bfd_mips_elf_additional_program_headers
1555#define elf_backend_modify_segment_map _bfd_mips_elf_modify_segment_map
103186c6
MM		 1556#define elf_backend_gc_mark_hook _bfd_mips_elf_gc_mark_hook
1557#define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook
8a20f077
UC		 1558#define elf_backend_copy_indirect_symbol \
1559 _bfd_mips_elf_copy_indirect_symbol
b305ef96 1560#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol
c6e90b02
TS		 1561#define elf_backend_grok_prstatus elf32_mips_grok_prstatus
1562#define elf_backend_grok_psinfo elf32_mips_grok_psinfo
d75bc93d
TS		 1563#define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap
1564
1565#define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO)
d75bc93d
TS		 1566#define elf_backend_may_use_rel_p 1
1567#define elf_backend_may_use_rela_p 0
1568#define elf_backend_default_use_rela_p 0
b34976b6 1569#define elf_backend_sign_extend_vma TRUE
b305ef96 1570
d01414a5 1571#define elf_backend_discard_info _bfd_mips_elf_discard_info
73d074b4 1572#define elf_backend_ignore_discarded_relocs \
53bfd6b4 1573 _bfd_mips_elf_ignore_discarded_relocs
c6e90b02
TS		 1574#define elf_backend_mips_irix_compat elf32_mips_irix_compat
1575#define elf_backend_mips_rtype_to_howto mips_elf32_rtype_to_howto
252b5132
RH		 1576#define bfd_elf32_bfd_is_local_label_name \
1577 mips_elf_is_local_label_name
1578#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
4ab527b0 1579#define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
f0abc2a1 1580#define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
252b5132 1581#define bfd_elf32_set_section_contents _bfd_mips_elf_set_section_contents
c6e90b02
TS		 1582#define bfd_elf32_bfd_get_relocated_section_contents \
1583 _bfd_elf_mips_get_relocated_section_contents
252b5132 1584#define bfd_elf32_bfd_link_hash_table_create \
103186c6
MM		 1585 _bfd_mips_elf_link_hash_table_create
1586#define bfd_elf32_bfd_final_link _bfd_mips_elf_final_link
252b5132
RH		 1587#define bfd_elf32_bfd_merge_private_bfd_data \
1588 _bfd_mips_elf_merge_private_bfd_data
1589#define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags
1590#define bfd_elf32_bfd_print_private_bfd_data \
1591 _bfd_mips_elf_print_private_bfd_data
e364195d 1592
d75bc93d
TS		 1593/* Support for SGI-ish mips targets. */
1594#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vec
1595#define TARGET_LITTLE_NAME "elf32-littlemips"
1596#define TARGET_BIG_SYM bfd_elf32_bigmips_vec
1597#define TARGET_BIG_NAME "elf32-bigmips"
1598
4301eeb1
MR		 1599/* The SVR4 MIPS ABI says that this should be 0x10000, but Irix 5 uses
1600 a value of 0x1000, and we are compatible. */
1601#define ELF_MAXPAGESIZE 0x1000
1602
d75bc93d 1603#include "elf32-target.h"
e364195d 1604
d75bc93d 1605/* Support for traditional mips targets. */
e364195d
UC		 1606#undef TARGET_LITTLE_SYM
1607#undef TARGET_LITTLE_NAME
1608#undef TARGET_BIG_SYM
1609#undef TARGET_BIG_NAME
1610
4301eeb1
MR		 1611#undef ELF_MAXPAGESIZE
1612
e364195d
UC		 1613#define TARGET_LITTLE_SYM bfd_elf32_tradlittlemips_vec
1614#define TARGET_LITTLE_NAME "elf32-tradlittlemips"
1615#define TARGET_BIG_SYM bfd_elf32_tradbigmips_vec
1616#define TARGET_BIG_NAME "elf32-tradbigmips"
1617
4301eeb1
MR		 1618/* The SVR4 MIPS ABI says that this should be 0x10000, and Linux uses
1619 page sizes of up to that limit, so we need to respect it. */
1620#define ELF_MAXPAGESIZE 0x10000
1621#define elf32_bed elf32_tradbed
1622
c6e90b02 1623/* Include the target file again for this target. */
e364195d 1624#include "elf32-target.h"
0a44bf69
RS		 1625
1626
1627/* Specific to VxWorks. */
1628static reloc_howto_type mips_vxworks_copy_howto_rela =
1629 HOWTO (R_MIPS_COPY, /* type */
1630 0, /* rightshift */
1631 2, /* size (0 = byte, 1 = short, 2 = long) */
1632 32, /* bitsize */
1633 FALSE, /* pc_relative */
1634 0, /* bitpos */
1635 complain_overflow_bitfield, /* complain_on_overflow */
1636 bfd_elf_generic_reloc, /* special_function */
1637 "R_MIPS_COPY", /* name */
1638 FALSE, /* partial_inplace */
1639 0x0, /* src_mask */
1640 0x0, /* dst_mask */
1641 FALSE); /* pcrel_offset */
1642
1643/* Specific to VxWorks. */
1644static reloc_howto_type mips_vxworks_jump_slot_howto_rela =
1645 HOWTO (R_MIPS_JUMP_SLOT, /* type */
1646 0, /* rightshift */
1647 2, /* size (0 = byte, 1 = short, 2 = long) */
1648 32, /* bitsize */
1649 FALSE, /* pc_relative */
1650 0, /* bitpos */
1651 complain_overflow_bitfield, /* complain_on_overflow */
1652 bfd_elf_generic_reloc, /* special_function */
1653 "R_MIPS_JUMP_SLOT", /* name */
1654 FALSE, /* partial_inplace */
1655 0x0, /* src_mask */
1656 0x0, /* dst_mask */
1657 FALSE); /* pcrel_offset */
1658
1659/* Implement elf_backend_bfd_reloc_type_lookup for VxWorks. */
1660
1661static reloc_howto_type *
1662mips_vxworks_bfd_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
1663{
1664 switch (code)
1665 {
1666 case BFD_RELOC_MIPS_COPY:
1667 return &mips_vxworks_copy_howto_rela;
1668 case BFD_RELOC_MIPS_JUMP_SLOT:
1669 return &mips_vxworks_jump_slot_howto_rela;
1670 default:
1671 return bfd_elf32_bfd_reloc_type_lookup (abfd, code);
1672 }
1673}
1674
1675/* Implement elf_backend_mips_rtype_to_lookup for VxWorks. */
1676
1677static reloc_howto_type *
1678mips_vxworks_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p)
1679{
1680 switch (r_type)
1681 {
1682 case R_MIPS_COPY:
1683 return &mips_vxworks_copy_howto_rela;
1684 case R_MIPS_JUMP_SLOT:
1685 return &mips_vxworks_jump_slot_howto_rela;
1686 default:
1687 return mips_elf32_rtype_to_howto (r_type, rela_p);
1688 }
1689}
1690
1691/* Implement elf_backend_final_write_processing for VxWorks. */
1692
1693static void
1694mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
1695{
1696 _bfd_mips_elf_final_write_processing (abfd, linker);
1697 elf_vxworks_final_write_processing (abfd, linker);
1698}
1699
1700#undef TARGET_LITTLE_SYM
1701#undef TARGET_LITTLE_NAME
1702#undef TARGET_BIG_SYM
1703#undef TARGET_BIG_NAME
1704
1705#define TARGET_LITTLE_SYM bfd_elf32_littlemips_vxworks_vec
1706#define TARGET_LITTLE_NAME "elf32-littlemips-vxworks"
1707#define TARGET_BIG_SYM bfd_elf32_bigmips_vxworks_vec
1708#define TARGET_BIG_NAME "elf32-bigmips-vxworks"
1709
1710#undef elf32_bed
1711#define elf32_bed elf32_mips_vxworks_bed
1712
1713#undef ELF_MAXPAGESIZE
1714#define ELF_MAXPAGESIZE 0x1000
1715
1716#undef elf_backend_want_got_plt
1717#define elf_backend_want_got_plt 1
1718#undef elf_backend_want_plt_sym
1719#define elf_backend_want_plt_sym 1
1720#undef elf_backend_got_symbol_offset
1721#define elf_backend_got_symbol_offset 0
1722#undef elf_backend_want_dynbss
1723#define elf_backend_want_dynbss 1
1724#undef elf_backend_may_use_rel_p
1725#define elf_backend_may_use_rel_p 0
1726#undef elf_backend_may_use_rela_p
1727#define elf_backend_may_use_rela_p 1
1728#undef elf_backend_default_use_rela_p
1729#define elf_backend_default_use_rela_p 1
1730#undef elf_backend_got_header_size
1731#define elf_backend_got_header_size (4 * 3)
1732#undef elf_backend_plt_readonly
1733#define elf_backend_plt_readonly 1
1734
1735#undef bfd_elf32_bfd_reloc_type_lookup
1736#define bfd_elf32_bfd_reloc_type_lookup \
1737 mips_vxworks_bfd_reloc_type_lookup
1738#undef elf_backend_mips_rtype_to_howto
1739#define elf_backend_mips_rtype_to_howto \
1740 mips_vxworks_rtype_to_howto
1741#undef elf_backend_adjust_dynamic_symbol
1742#define elf_backend_adjust_dynamic_symbol \
1743 _bfd_mips_vxworks_adjust_dynamic_symbol
1744#undef elf_backend_finish_dynamic_symbol
1745#define elf_backend_finish_dynamic_symbol \
1746 _bfd_mips_vxworks_finish_dynamic_symbol
1747#undef bfd_elf32_bfd_link_hash_table_create
1748#define bfd_elf32_bfd_link_hash_table_create \
1749 _bfd_mips_vxworks_link_hash_table_create
1750#undef elf_backend_add_symbol_hook
1751#define elf_backend_add_symbol_hook \
1752 elf_vxworks_add_symbol_hook
1753#undef elf_backend_link_output_symbol_hook
1754#define elf_backend_link_output_symbol_hook \
1755 elf_vxworks_link_output_symbol_hook
1756#undef elf_backend_emit_relocs
1757#define elf_backend_emit_relocs \
1758 elf_vxworks_emit_relocs
1759#undef elf_backend_final_write_processing
1760#define elf_backend_final_write_processing \
1761 mips_vxworks_final_write_processing
1762
1763#undef elf_backend_additional_program_headers
1764#undef elf_backend_modify_segment_map
1765#undef elf_backend_symbol_processing
1766/* NOTE: elf_backend_rela_normal is not defined for MIPS. */
1767
1768#include "elf32-target.h"
GDB Binutils - Deliverables
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