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1 17 khays
/* MIPS ELF support for BFD.
2
   Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
3
   2003, 2004, 2005, 2008, 2009, 2010
4
   Free Software Foundation, Inc.
5
 
6
   By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
7
   information in the System V Application Binary Interface, MIPS
8
   Processor Supplement.
9
 
10
   This file is part of BFD, the Binary File Descriptor library.
11
 
12
   This program is free software; you can redistribute it and/or modify
13
   it under the terms of the GNU General Public License as published by
14
   the Free Software Foundation; either version 3 of the License, or
15
   (at your option) any later version.
16
 
17
   This program is distributed in the hope that it will be useful,
18
   but WITHOUT ANY WARRANTY; without even the implied warranty of
19
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20
   GNU General Public License for more details.
21
 
22
   You should have received a copy of the GNU General Public License
23
   along with this program; if not, write to the Free Software
24
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
25
   MA 02110-1301, USA.  */
26
 
27
/* This file holds definitions specific to the MIPS ELF ABI.  Note
28
   that most of this is not actually implemented by BFD.  */
29
 
30
#ifndef _ELF_MIPS_H
31
#define _ELF_MIPS_H
32
 
33
#include "elf/reloc-macros.h"
34
 
35
/* Relocation types.  */
36
START_RELOC_NUMBERS (elf_mips_reloc_type)
37
  RELOC_NUMBER (R_MIPS_NONE, 0)
38
  RELOC_NUMBER (R_MIPS_16, 1)
39
  RELOC_NUMBER (R_MIPS_32, 2)           /* In Elf 64: alias R_MIPS_ADD */
40
  RELOC_NUMBER (R_MIPS_REL32, 3)        /* In Elf 64: alias R_MIPS_REL */
41
  RELOC_NUMBER (R_MIPS_26, 4)
42
  RELOC_NUMBER (R_MIPS_HI16, 5)
43
  RELOC_NUMBER (R_MIPS_LO16, 6)
44
  RELOC_NUMBER (R_MIPS_GPREL16, 7)      /* In Elf 64: alias R_MIPS_GPREL */
45
  RELOC_NUMBER (R_MIPS_LITERAL, 8)
46
  RELOC_NUMBER (R_MIPS_GOT16, 9)        /* In Elf 64: alias R_MIPS_GOT */
47
  RELOC_NUMBER (R_MIPS_PC16, 10)
48
  RELOC_NUMBER (R_MIPS_CALL16, 11)      /* In Elf 64: alias R_MIPS_CALL */
49
  RELOC_NUMBER (R_MIPS_GPREL32, 12)
50
  /* The remaining relocs are defined on Irix, although they are not
51
     in the MIPS ELF ABI.  */
52
  RELOC_NUMBER (R_MIPS_UNUSED1, 13)
53
  RELOC_NUMBER (R_MIPS_UNUSED2, 14)
54
  RELOC_NUMBER (R_MIPS_UNUSED3, 15)
55
  RELOC_NUMBER (R_MIPS_SHIFT5, 16)
56
  RELOC_NUMBER (R_MIPS_SHIFT6, 17)
57
  RELOC_NUMBER (R_MIPS_64, 18)
58
  RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
59
  RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
60
  RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
61
  RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
62
  RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
63
  RELOC_NUMBER (R_MIPS_SUB, 24)
64
  RELOC_NUMBER (R_MIPS_INSERT_A, 25)
65
  RELOC_NUMBER (R_MIPS_INSERT_B, 26)
66
  RELOC_NUMBER (R_MIPS_DELETE, 27)
67
  RELOC_NUMBER (R_MIPS_HIGHER, 28)
68
  RELOC_NUMBER (R_MIPS_HIGHEST, 29)
69
  RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
70
  RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
71
  RELOC_NUMBER (R_MIPS_SCN_DISP, 32)
72
  RELOC_NUMBER (R_MIPS_REL16, 33)
73
  RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34)
74
  RELOC_NUMBER (R_MIPS_PJUMP, 35)
75
  RELOC_NUMBER (R_MIPS_RELGOT, 36)
76
  RELOC_NUMBER (R_MIPS_JALR, 37)
77
  /* TLS relocations.  */
78
  RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38)
79
  RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39)
80
  RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40)
81
  RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41)
82
  RELOC_NUMBER (R_MIPS_TLS_GD, 42)
83
  RELOC_NUMBER (R_MIPS_TLS_LDM, 43)
84
  RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44)
85
  RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45)
86
  RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46)
87
  RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47)
88
  RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48)
89
  RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49)
90
  RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50)
91
  RELOC_NUMBER (R_MIPS_GLOB_DAT, 51)
92
  FAKE_RELOC (R_MIPS_max, 52)
93
  /* These relocs are used for the mips16.  */
94
  FAKE_RELOC (R_MIPS16_min, 100)
95
  RELOC_NUMBER (R_MIPS16_26, 100)
96
  RELOC_NUMBER (R_MIPS16_GPREL, 101)
97
  RELOC_NUMBER (R_MIPS16_GOT16, 102)
98
  RELOC_NUMBER (R_MIPS16_CALL16, 103)
99
  RELOC_NUMBER (R_MIPS16_HI16, 104)
100
  RELOC_NUMBER (R_MIPS16_LO16, 105)
101 166 khays
  RELOC_NUMBER (R_MIPS16_TLS_GD, 106)
102
  RELOC_NUMBER (R_MIPS16_TLS_LDM, 107)
103
  RELOC_NUMBER (R_MIPS16_TLS_DTPREL_HI16, 108)
104
  RELOC_NUMBER (R_MIPS16_TLS_DTPREL_LO16, 109)
105
  RELOC_NUMBER (R_MIPS16_TLS_GOTTPREL, 110)
106
  RELOC_NUMBER (R_MIPS16_TLS_TPREL_HI16, 111)
107
  RELOC_NUMBER (R_MIPS16_TLS_TPREL_LO16, 112)
108
  FAKE_RELOC (R_MIPS16_max, 113)
109 17 khays
  /* These relocations are specific to VxWorks.  */
110
  RELOC_NUMBER (R_MIPS_COPY, 126)
111
  RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127)
112 161 khays
 
113
  /* These relocations are specific to microMIPS.  */
114
  FAKE_RELOC (R_MICROMIPS_min, 130)
115
  RELOC_NUMBER (R_MICROMIPS_26_S1, 133)
116
  RELOC_NUMBER (R_MICROMIPS_HI16, 134)
117
  RELOC_NUMBER (R_MICROMIPS_LO16, 135)
118
  RELOC_NUMBER (R_MICROMIPS_GPREL16, 136)       /* In Elf 64:
119
                                                   alias R_MICROMIPS_GPREL */
120
  RELOC_NUMBER (R_MICROMIPS_LITERAL, 137)
121
  RELOC_NUMBER (R_MICROMIPS_GOT16, 138)         /* In Elf 64:
122
                                                   alias R_MICROMIPS_GOT */
123
  RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139)
124
  RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140)
125
  RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141)
126
  RELOC_NUMBER (R_MICROMIPS_CALL16, 142)        /* In Elf 64:
127
                                                   alias R_MICROMIPS_CALL */
128
  RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145)
129
  RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146)
130
  RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147)
131
  RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148)
132
  RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149)
133
  RELOC_NUMBER (R_MICROMIPS_SUB, 150)
134
  RELOC_NUMBER (R_MICROMIPS_HIGHER, 151)
135
  RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152)
136
  RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153)
137
  RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154)
138
  RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155)
139
  RELOC_NUMBER (R_MICROMIPS_JALR, 156)
140
  RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157)
141
  /* TLS relocations.  */
142
  RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162)
143
  RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163)
144
  RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164)
145
  RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165)
146
  RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166)
147
  RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169)
148
  RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170)
149
  /* microMIPS GP- and PC-relative relocations. */
150
  RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172)
151
  RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173)
152
  FAKE_RELOC (R_MICROMIPS_max, 174)
153
 
154 17 khays
  /* This was a GNU extension used by embedded-PIC.  It was co-opted by
155
     mips-linux for exception-handling data.  It is no longer used, but
156
     should continue to be supported by the linker for backward
157
     compatibility.  (GCC stopped using it in May, 2004.)  */
158
  RELOC_NUMBER (R_MIPS_PC32, 248)
159
  /* FIXME: this relocation is used internally by gas.  */
160
  RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250)
161
  /* These are GNU extensions to enable C++ vtable garbage collection.  */
162
  RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
163
  RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
164
END_RELOC_NUMBERS (R_MIPS_maxext)
165
 
166
/* Processor specific flags for the ELF header e_flags field.  */
167
 
168
/* At least one .noreorder directive appears in the source.  */
169
#define EF_MIPS_NOREORDER       0x00000001
170
 
171
/* File contains position independent code.  */
172
#define EF_MIPS_PIC             0x00000002
173
 
174
/* Code in file uses the standard calling sequence for calling
175
   position independent code.  */
176
#define EF_MIPS_CPIC            0x00000004
177
 
178
/* ???  Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a.  */
179
#define EF_MIPS_XGOT            0x00000008
180
 
181
/* Code in file uses UCODE (obsolete) */
182
#define EF_MIPS_UCODE           0x00000010
183
 
184
/* Code in file uses new ABI (-n32 on Irix 6).  */
185
#define EF_MIPS_ABI2            0x00000020
186
 
187
/* Process the .MIPS.options section first by ld */
188
#define EF_MIPS_OPTIONS_FIRST   0x00000080
189
 
190
/* Architectural Extensions used by this file */
191
#define EF_MIPS_ARCH_ASE        0x0f000000
192
 
193
/* Use MDMX multimedia extensions */
194
#define EF_MIPS_ARCH_ASE_MDMX   0x08000000
195
 
196
/* Use MIPS-16 ISA extensions */
197
#define EF_MIPS_ARCH_ASE_M16    0x04000000
198
 
199 161 khays
/* Use MICROMIPS ISA extensions.  */
200
#define EF_MIPS_ARCH_ASE_MICROMIPS      0x02000000
201
 
202 17 khays
/* Indicates code compiled for a 64-bit machine in 32-bit mode.
203
   (regs are 32-bits wide.) */
204
#define EF_MIPS_32BITMODE       0x00000100
205
 
206
/* Four bit MIPS architecture field.  */
207
#define EF_MIPS_ARCH            0xf0000000
208
 
209
/* -mips1 code.  */
210
#define E_MIPS_ARCH_1           0x00000000
211
 
212
/* -mips2 code.  */
213
#define E_MIPS_ARCH_2           0x10000000
214
 
215
/* -mips3 code.  */
216
#define E_MIPS_ARCH_3           0x20000000
217
 
218
/* -mips4 code.  */
219
#define E_MIPS_ARCH_4           0x30000000
220
 
221
/* -mips5 code.  */
222
#define E_MIPS_ARCH_5           0x40000000
223
 
224
/* -mips32 code.  */
225
#define E_MIPS_ARCH_32          0x50000000
226
 
227
/* -mips64 code.  */
228
#define E_MIPS_ARCH_64          0x60000000
229
 
230
/* -mips32r2 code.  */
231
#define E_MIPS_ARCH_32R2        0x70000000
232
 
233
/* -mips64r2 code.  */
234
#define E_MIPS_ARCH_64R2        0x80000000
235
 
236
/* The ABI of the file.  Also see EF_MIPS_ABI2 above. */
237
#define EF_MIPS_ABI             0x0000F000
238
 
239
/* The original o32 abi. */
240
#define E_MIPS_ABI_O32          0x00001000
241
 
242
/* O32 extended to work on 64 bit architectures */
243
#define E_MIPS_ABI_O64          0x00002000
244
 
245
/* EABI in 32 bit mode */
246
#define E_MIPS_ABI_EABI32       0x00003000
247
 
248
/* EABI in 64 bit mode */
249
#define E_MIPS_ABI_EABI64       0x00004000
250
 
251
 
252
/* Machine variant if we know it.  This field was invented at Cygnus,
253
   but it is hoped that other vendors will adopt it.  If some standard
254
   is developed, this code should be changed to follow it. */
255
 
256
#define EF_MIPS_MACH            0x00FF0000
257
 
258
/* Cygnus is choosing values between 80 and 9F;
259
   00 - 7F should be left for a future standard;
260
   the rest are open. */
261
 
262
#define E_MIPS_MACH_3900        0x00810000
263
#define E_MIPS_MACH_4010        0x00820000
264
#define E_MIPS_MACH_4100        0x00830000
265
#define E_MIPS_MACH_4650        0x00850000
266
#define E_MIPS_MACH_4120        0x00870000
267
#define E_MIPS_MACH_4111        0x00880000
268
#define E_MIPS_MACH_SB1         0x008a0000
269
#define E_MIPS_MACH_OCTEON      0x008b0000
270
#define E_MIPS_MACH_XLR         0x008c0000
271
#define E_MIPS_MACH_OCTEON2     0x008d0000
272
#define E_MIPS_MACH_5400        0x00910000
273
#define E_MIPS_MACH_5500        0x00980000
274
#define E_MIPS_MACH_9000        0x00990000
275
#define E_MIPS_MACH_LS2E        0x00A00000
276
#define E_MIPS_MACH_LS2F        0x00A10000
277
#define E_MIPS_MACH_LS3A        0x00A20000
278
 
279
/* Processor specific section indices.  These sections do not actually
280
   exist.  Symbols with a st_shndx field corresponding to one of these
281
   values have a special meaning.  */
282
 
283
/* Defined and allocated common symbol.  Value is virtual address.  If
284
   relocated, alignment must be preserved.  */
285
#define SHN_MIPS_ACOMMON        SHN_LORESERVE
286
 
287
/* Defined and allocated text symbol.  Value is virtual address.
288
   Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
289
#define SHN_MIPS_TEXT           (SHN_LORESERVE + 1)
290
 
291
/* Defined and allocated data symbol.  Value is virtual address.
292
   Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
293
#define SHN_MIPS_DATA           (SHN_LORESERVE + 2)
294
 
295
/* Small common symbol.  */
296
#define SHN_MIPS_SCOMMON        (SHN_LORESERVE + 3)
297
 
298
/* Small undefined symbol.  */
299
#define SHN_MIPS_SUNDEFINED     (SHN_LORESERVE + 4)
300
 
301
/* Processor specific section types.  */
302
 
303
/* Section contains the set of dynamic shared objects used when
304
   statically linking.  */
305
#define SHT_MIPS_LIBLIST        0x70000000
306
 
307
/* I'm not sure what this is, but it's used on Irix 5.  */
308
#define SHT_MIPS_MSYM           0x70000001
309
 
310
/* Section contains list of symbols whose definitions conflict with
311
   symbols defined in shared objects.  */
312
#define SHT_MIPS_CONFLICT       0x70000002
313
 
314
/* Section contains the global pointer table.  */
315
#define SHT_MIPS_GPTAB          0x70000003
316
 
317
/* Section contains microcode information.  The exact format is
318
   unspecified.  */
319
#define SHT_MIPS_UCODE          0x70000004
320
 
321
/* Section contains some sort of debugging information.  The exact
322
   format is unspecified.  It's probably ECOFF symbols.  */
323
#define SHT_MIPS_DEBUG          0x70000005
324
 
325
/* Section contains register usage information.  */
326
#define SHT_MIPS_REGINFO        0x70000006
327
 
328
/* ??? */
329
#define SHT_MIPS_PACKAGE        0x70000007
330
 
331
/* ??? */
332
#define SHT_MIPS_PACKSYM        0x70000008
333
 
334
/* ??? */
335
#define SHT_MIPS_RELD           0x70000009
336
 
337
/* Section contains interface information.  */
338
#define SHT_MIPS_IFACE          0x7000000b
339
 
340
/* Section contains description of contents of another section.  */
341
#define SHT_MIPS_CONTENT        0x7000000c
342
 
343
/* Section contains miscellaneous options.  */
344
#define SHT_MIPS_OPTIONS        0x7000000d
345
 
346
/* ??? */
347
#define SHT_MIPS_SHDR           0x70000010
348
 
349
/* ??? */
350
#define SHT_MIPS_FDESC          0x70000011
351
 
352
/* ??? */
353
#define SHT_MIPS_EXTSYM         0x70000012
354
 
355
/* ??? */
356
#define SHT_MIPS_DENSE          0x70000013
357
 
358
/* ??? */
359
#define SHT_MIPS_PDESC          0x70000014
360
 
361
/* ??? */
362
#define SHT_MIPS_LOCSYM         0x70000015
363
 
364
/* ??? */
365
#define SHT_MIPS_AUXSYM         0x70000016
366
 
367
/* ??? */
368
#define SHT_MIPS_OPTSYM         0x70000017
369
 
370
/* ??? */
371
#define SHT_MIPS_LOCSTR         0x70000018
372
 
373
/* ??? */
374
#define SHT_MIPS_LINE           0x70000019
375
 
376
/* ??? */
377
#define SHT_MIPS_RFDESC         0x7000001a
378
 
379
/* Delta C++: symbol table */
380
#define SHT_MIPS_DELTASYM       0x7000001b
381
 
382
/* Delta C++: instance table */
383
#define SHT_MIPS_DELTAINST      0x7000001c
384
 
385
/* Delta C++: class table */
386
#define SHT_MIPS_DELTACLASS     0x7000001d
387
 
388
/* DWARF debugging section.  */
389
#define SHT_MIPS_DWARF          0x7000001e
390
 
391
/* Delta C++: declarations */
392
#define SHT_MIPS_DELTADECL      0x7000001f
393
 
394
/* List of libraries the binary depends on.  Includes a time stamp, version
395
   number.  */
396
#define SHT_MIPS_SYMBOL_LIB     0x70000020
397
 
398
/* Events section.  */
399
#define SHT_MIPS_EVENTS         0x70000021
400
 
401
/* ??? */
402
#define SHT_MIPS_TRANSLATE      0x70000022
403
 
404
/* Special pixie sections */
405
#define SHT_MIPS_PIXIE          0x70000023
406
 
407
/* Address translation table (for debug info) */
408
#define SHT_MIPS_XLATE          0x70000024
409
 
410
/* SGI internal address translation table (for debug info) */
411
#define SHT_MIPS_XLATE_DEBUG    0x70000025
412
 
413
/* Intermediate code */
414
#define SHT_MIPS_WHIRL          0x70000026
415
 
416
/* C++ exception handling region info */
417
#define SHT_MIPS_EH_REGION      0x70000027
418
 
419
/* Obsolete address translation table (for debug info) */
420
#define SHT_MIPS_XLATE_OLD      0x70000028
421
 
422
/* Runtime procedure descriptor table exception information (ucode) ??? */
423
#define SHT_MIPS_PDR_EXCEPTION  0x70000029
424
 
425
 
426
/* A section of type SHT_MIPS_LIBLIST contains an array of the
427
   following structure.  The sh_link field is the section index of the
428
   string table.  The sh_info field is the number of entries in the
429
   section.  */
430
typedef struct
431
{
432
  /* String table index for name of shared object.  */
433
  unsigned long l_name;
434
  /* Time stamp.  */
435
  unsigned long l_time_stamp;
436
  /* Checksum of symbol names and common sizes.  */
437
  unsigned long l_checksum;
438
  /* String table index for version.  */
439
  unsigned long l_version;
440
  /* Flags.  */
441
  unsigned long l_flags;
442
} Elf32_Lib;
443
 
444
/* The external version of Elf32_Lib.  */
445
typedef struct
446
{
447
  unsigned char l_name[4];
448
  unsigned char l_time_stamp[4];
449
  unsigned char l_checksum[4];
450
  unsigned char l_version[4];
451
  unsigned char l_flags[4];
452
} Elf32_External_Lib;
453
 
454
/* The l_flags field of an Elf32_Lib structure may contain the
455
   following flags.  */
456
 
457
/* Require an exact match at runtime.  */
458
#define LL_EXACT_MATCH          0x00000001
459
 
460
/* Ignore version incompatibilities at runtime.  */
461
#define LL_IGNORE_INT_VER       0x00000002
462
 
463
/* Require matching minor version number.  */
464
#define LL_REQUIRE_MINOR        0x00000004
465
 
466
/* ??? */
467
#define LL_EXPORTS              0x00000008
468
 
469
/* Delay loading of this library until really needed.  */
470
#define LL_DELAY_LOAD           0x00000010
471
 
472
/* ??? Delta C++ stuff ??? */
473
#define LL_DELTA                0x00000020
474
 
475
 
476
/* A section of type SHT_MIPS_CONFLICT is an array of indices into the
477
   .dynsym section.  Each element has the following type.  */
478
typedef unsigned long Elf32_Conflict;
479
typedef unsigned char Elf32_External_Conflict[4];
480
 
481
typedef unsigned long Elf64_Conflict;
482
typedef unsigned char Elf64_External_Conflict[8];
483
 
484
/* A section of type SHT_MIPS_GPTAB contains information about how
485
   much GP space would be required for different -G arguments.  This
486
   information is only used so that the linker can provide informative
487
   suggestions as to the best -G value to use.  The sh_info field is
488
   the index of the section for which this information applies.  The
489
   contents of the section are an array of the following union.  The
490
   first element uses the gt_header field.  The remaining elements use
491
   the gt_entry field.  */
492
typedef union
493
{
494
  struct
495
    {
496
      /* -G value actually used for this object file.  */
497
      unsigned long gt_current_g_value;
498
      /* Unused.  */
499
      unsigned long gt_unused;
500
    } gt_header;
501
  struct
502
    {
503
      /* If this -G argument has been used...  */
504
      unsigned long gt_g_value;
505
      /* ...this many GP section bytes would be required.  */
506
      unsigned long gt_bytes;
507
    } gt_entry;
508
} Elf32_gptab;
509
 
510
/* The external version of Elf32_gptab.  */
511
 
512
typedef union
513
{
514
  struct
515
    {
516
      unsigned char gt_current_g_value[4];
517
      unsigned char gt_unused[4];
518
    } gt_header;
519
  struct
520
    {
521
      unsigned char gt_g_value[4];
522
      unsigned char gt_bytes[4];
523
    } gt_entry;
524
} Elf32_External_gptab;
525
 
526
/* A section of type SHT_MIPS_REGINFO contains the following
527
   structure.  */
528
typedef struct
529
{
530
  /* Mask of general purpose registers used.  */
531
  unsigned long ri_gprmask;
532
  /* Mask of co-processor registers used.  */
533
  unsigned long ri_cprmask[4];
534
  /* GP register value for this object file.  */
535
  long ri_gp_value;
536
} Elf32_RegInfo;
537
 
538
/* The external version of the Elf_RegInfo structure.  */
539
typedef struct
540
{
541
  unsigned char ri_gprmask[4];
542
  unsigned char ri_cprmask[4][4];
543
  unsigned char ri_gp_value[4];
544
} Elf32_External_RegInfo;
545
 
546
/* MIPS ELF .reginfo swapping routines.  */
547
extern void bfd_mips_elf32_swap_reginfo_in
548
  (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *);
549
extern void bfd_mips_elf32_swap_reginfo_out
550
  (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *);
551
 
552
/* Processor specific section flags.  */
553
 
554
/* This section must be in the global data area.  */
555
#define SHF_MIPS_GPREL          0x10000000
556
 
557
/* This section should be merged.  */
558
#define SHF_MIPS_MERGE          0x20000000
559
 
560
/* This section contains address data of size implied by section
561
   element size.  */
562
#define SHF_MIPS_ADDR           0x40000000
563
 
564
/* This section contains string data.  */
565
#define SHF_MIPS_STRING         0x80000000
566
 
567
/* This section may not be stripped.  */
568
#define SHF_MIPS_NOSTRIP        0x08000000
569
 
570
/* This section is local to threads.  */
571
#define SHF_MIPS_LOCAL          0x04000000
572
 
573
/* Linker should generate implicit weak names for this section.  */
574
#define SHF_MIPS_NAMES          0x02000000
575
 
576
/* Section contais text/data which may be replicated in other sections.
577
   Linker should retain only one copy.  */
578
#define SHF_MIPS_NODUPES        0x01000000
579
 
580
/* Processor specific program header types.  */
581
 
582
/* Register usage information.  Identifies one .reginfo section.  */
583
#define PT_MIPS_REGINFO         0x70000000
584
 
585
/* Runtime procedure table.  */
586
#define PT_MIPS_RTPROC          0x70000001
587
 
588
/* .MIPS.options section.  */
589
#define PT_MIPS_OPTIONS         0x70000002
590
 
591
/* Processor specific dynamic array tags.  */
592
 
593
/* 32 bit version number for runtime linker interface.  */
594
#define DT_MIPS_RLD_VERSION     0x70000001
595
 
596
/* Time stamp.  */
597
#define DT_MIPS_TIME_STAMP      0x70000002
598
 
599
/* Checksum of external strings and common sizes.  */
600
#define DT_MIPS_ICHECKSUM       0x70000003
601
 
602
/* Index of version string in string table.  */
603
#define DT_MIPS_IVERSION        0x70000004
604
 
605
/* 32 bits of flags.  */
606
#define DT_MIPS_FLAGS           0x70000005
607
 
608
/* Base address of the segment.  */
609
#define DT_MIPS_BASE_ADDRESS    0x70000006
610
 
611
/* ??? */
612
#define DT_MIPS_MSYM            0x70000007
613
 
614
/* Address of .conflict section.  */
615
#define DT_MIPS_CONFLICT        0x70000008
616
 
617
/* Address of .liblist section.  */
618
#define DT_MIPS_LIBLIST         0x70000009
619
 
620
/* Number of local global offset table entries.  */
621
#define DT_MIPS_LOCAL_GOTNO     0x7000000a
622
 
623
/* Number of entries in the .conflict section.  */
624
#define DT_MIPS_CONFLICTNO      0x7000000b
625
 
626
/* Number of entries in the .liblist section.  */
627
#define DT_MIPS_LIBLISTNO       0x70000010
628
 
629
/* Number of entries in the .dynsym section.  */
630
#define DT_MIPS_SYMTABNO        0x70000011
631
 
632
/* Index of first external dynamic symbol not referenced locally.  */
633
#define DT_MIPS_UNREFEXTNO      0x70000012
634
 
635
/* Index of first dynamic symbol in global offset table.  */
636
#define DT_MIPS_GOTSYM          0x70000013
637
 
638
/* Number of page table entries in global offset table.  */
639
#define DT_MIPS_HIPAGENO        0x70000014
640
 
641
/* Address of run time loader map, used for debugging.  */
642
#define DT_MIPS_RLD_MAP         0x70000016
643
 
644
/* Delta C++ class definition.  */
645
#define DT_MIPS_DELTA_CLASS     0x70000017
646
 
647
/* Number of entries in DT_MIPS_DELTA_CLASS.  */
648
#define DT_MIPS_DELTA_CLASS_NO  0x70000018
649
 
650
/* Delta C++ class instances.  */
651
#define DT_MIPS_DELTA_INSTANCE  0x70000019
652
 
653
/* Number of entries in DT_MIPS_DELTA_INSTANCE.  */
654
#define DT_MIPS_DELTA_INSTANCE_NO       0x7000001a
655
 
656
/* Delta relocations.  */
657
#define DT_MIPS_DELTA_RELOC     0x7000001b
658
 
659
/* Number of entries in DT_MIPS_DELTA_RELOC.  */
660
#define DT_MIPS_DELTA_RELOC_NO  0x7000001c
661
 
662
/* Delta symbols that Delta relocations refer to.  */
663
#define DT_MIPS_DELTA_SYM       0x7000001d
664
 
665
/* Number of entries in DT_MIPS_DELTA_SYM.  */
666
#define DT_MIPS_DELTA_SYM_NO    0x7000001e
667
 
668
/* Delta symbols that hold class declarations.  */
669
#define DT_MIPS_DELTA_CLASSSYM  0x70000020
670
 
671
/* Number of entries in DT_MIPS_DELTA_CLASSSYM.  */
672
#define DT_MIPS_DELTA_CLASSSYM_NO       0x70000021
673
 
674
/* Flags indicating information about C++ flavor.  */
675
#define DT_MIPS_CXX_FLAGS       0x70000022
676
 
677
/* Pixie information (???).  */
678
#define DT_MIPS_PIXIE_INIT      0x70000023
679
 
680
/* Address of .MIPS.symlib */
681
#define DT_MIPS_SYMBOL_LIB      0x70000024
682
 
683
/* The GOT index of the first PTE for a segment */
684
#define DT_MIPS_LOCALPAGE_GOTIDX        0x70000025
685
 
686
/* The GOT index of the first PTE for a local symbol */
687
#define DT_MIPS_LOCAL_GOTIDX    0x70000026
688
 
689
/* The GOT index of the first PTE for a hidden symbol */
690
#define DT_MIPS_HIDDEN_GOTIDX   0x70000027
691
 
692
/* The GOT index of the first PTE for a protected symbol */
693
#define DT_MIPS_PROTECTED_GOTIDX        0x70000028
694
 
695
/* Address of `.MIPS.options'.  */
696
#define DT_MIPS_OPTIONS         0x70000029
697
 
698
/* Address of `.interface'.  */
699
#define DT_MIPS_INTERFACE       0x7000002a
700
 
701
/* ??? */
702
#define DT_MIPS_DYNSTR_ALIGN    0x7000002b
703
 
704
/* Size of the .interface section.  */
705
#define DT_MIPS_INTERFACE_SIZE  0x7000002c
706
 
707
/* Size of rld_text_resolve function stored in the GOT.  */
708
#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR   0x7000002d
709
 
710
/* Default suffix of DSO to be added by rld on dlopen() calls.  */
711
#define DT_MIPS_PERF_SUFFIX     0x7000002e
712
 
713
/* Size of compact relocation section (O32).  */
714
#define DT_MIPS_COMPACT_SIZE    0x7000002f
715
 
716
/* GP value for auxiliary GOTs.  */
717
#define DT_MIPS_GP_VALUE        0x70000030
718
 
719
/* Address of auxiliary .dynamic.  */
720
#define DT_MIPS_AUX_DYNAMIC     0x70000031
721
 
722
/* Address of the base of the PLTGOT.  */
723
#define DT_MIPS_PLTGOT         0x70000032
724
 
725
/* Points to the base of a writable PLT.  */
726
#define DT_MIPS_RWPLT          0x70000034
727
 
728
/* Flags which may appear in a DT_MIPS_FLAGS entry.  */
729
 
730
/* No flags.  */
731
#define RHF_NONE                0x00000000
732
 
733
/* Uses shortcut pointers.  */
734
#define RHF_QUICKSTART          0x00000001
735
 
736
/* Hash size is not a power of two.  */
737
#define RHF_NOTPOT              0x00000002
738
 
739
/* Ignore LD_LIBRARY_PATH.  */
740
#define RHS_NO_LIBRARY_REPLACEMENT 0x00000004
741
 
742
/* DSO address may not be relocated. */
743
#define RHF_NO_MOVE             0x00000008
744
 
745
/* SGI specific features. */
746
#define RHF_SGI_ONLY            0x00000010
747
 
748
/* Guarantee that .init will finish executing before any non-init
749
   code in DSO is called. */
750
#define RHF_GUARANTEE_INIT         0x00000020
751
 
752
/* Contains Delta C++ code. */
753
#define RHF_DELTA_C_PLUS_PLUS      0x00000040
754
 
755
/* Guarantee that .init will start executing before any non-init
756
   code in DSO is called. */
757
#define RHF_GUARANTEE_START_INIT   0x00000080
758
 
759
/* Generated by pixie. */
760
#define RHF_PIXIE                  0x00000100
761
 
762
/* Delay-load DSO by default. */
763
#define RHF_DEFAULT_DELAY_LOAD     0x00000200
764
 
765
/* Object may be requickstarted */
766
#define RHF_REQUICKSTART           0x00000400
767
 
768
/* Object has been requickstarted */
769
#define RHF_REQUICKSTARTED         0x00000800
770
 
771
/* Generated by cord. */
772
#define RHF_CORD                   0x00001000
773
 
774
/* Object contains no unresolved undef symbols. */
775
#define RHF_NO_UNRES_UNDEF         0x00002000
776
 
777
/* Symbol table is in a safe order. */
778
#define RHF_RLD_ORDER_SAFE         0x00004000
779
 
780
/* Special values for the st_other field in the symbol table.  These
781
   are used in an Irix 5 dynamic symbol table.  */
782
 
783
#define STO_DEFAULT             STV_DEFAULT
784
#define STO_INTERNAL            STV_INTERNAL
785
#define STO_HIDDEN              STV_HIDDEN
786
#define STO_PROTECTED           STV_PROTECTED
787
 
788 161 khays
/* Two topmost bits denote the MIPS ISA for .text symbols:
789
   + 00 -- standard MIPS code,
790
   + 10 -- microMIPS code,
791
   + 11 -- MIPS16 code; requires the following two bits to be set too.
792
   Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC.  See below
793
   for details.  */
794
#define STO_MIPS_ISA            (3 << 6)
795
 
796
/* The mask spanning the rest of MIPS psABI flags.  At most one is expected
797
   to be set except for STO_MIPS16.  */
798
#define STO_MIPS_FLAGS          (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1)))
799
 
800 17 khays
/* The MIPS psABI was updated in 2008 with support for PLTs and copy
801
   relocs.  There are therefore two types of nonzero SHN_UNDEF functions:
802
   PLT entries and traditional MIPS lazy binding stubs.  We mark the former
803
   with STO_MIPS_PLT to distinguish them from the latter.  */
804
#define STO_MIPS_PLT            0x8
805 161 khays
#define ELF_ST_IS_MIPS_PLT(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PLT)
806
#define ELF_ST_SET_MIPS_PLT(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PLT)
807 17 khays
 
808
/* This value is used to mark PIC functions in an object that mixes
809 161 khays
   PIC and non-PIC.  Note that this bit overlaps with STO_MIPS16,
810
   although MIPS16 symbols are never considered to be MIPS_PIC.  */
811 17 khays
#define STO_MIPS_PIC            0x20
812 161 khays
#define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC)
813
#define ELF_ST_SET_MIPS_PIC(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PIC)
814 17 khays
 
815
/* This value is used for a mips16 .text symbol.  */
816
#define STO_MIPS16              0xf0
817 161 khays
#define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16)
818
#define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16)
819 17 khays
 
820 161 khays
/* This value is used for a microMIPS .text symbol.  To distinguish from
821
   STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS.  The
822
   mask is STO_MIPS_ISA.  */
823
#define STO_MICROMIPS           (2 << 6)
824
#define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS)
825
#define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS)
826
 
827
/* Whether code compression (either of the MIPS16 or the microMIPS ASEs)
828
   has been indicated for a .text symbol.  */
829
#define ELF_ST_IS_COMPRESSED(other) \
830
  (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other))
831
 
832 17 khays
/* This bit is used on Irix to indicate a symbol whose definition
833
   is optional - if, at final link time, it cannot be found, no
834
   error message should be produced.  */
835
#define STO_OPTIONAL            (1 << 2)
836
/* A macro to examine the STO_OPTIONAL bit.  */
837
#define ELF_MIPS_IS_OPTIONAL(other)     ((other) & STO_OPTIONAL)
838
 
839
/* The 64-bit MIPS ELF ABI uses an unusual reloc format.  Each
840
   relocation entry specifies up to three actual relocations, all at
841
   the same address.  The first relocation which required a symbol
842
   uses the symbol in the r_sym field.  The second relocation which
843
   requires a symbol uses the symbol in the r_ssym field.  If all
844
   three relocations require a symbol, the third one uses a zero
845
   value.  */
846
 
847
/* An entry in a 64 bit SHT_REL section.  */
848
 
849
typedef struct
850
{
851
  /* Address of relocation.  */
852
  unsigned char r_offset[8];
853
  /* Symbol index.  */
854
  unsigned char r_sym[4];
855
  /* Special symbol.  */
856
  unsigned char r_ssym[1];
857
  /* Third relocation.  */
858
  unsigned char r_type3[1];
859
  /* Second relocation.  */
860
  unsigned char r_type2[1];
861
  /* First relocation.  */
862
  unsigned char r_type[1];
863
} Elf64_Mips_External_Rel;
864
 
865
typedef struct
866
{
867
  /* Address of relocation.  */
868
  bfd_vma r_offset;
869
  /* Symbol index.  */
870
  unsigned long r_sym;
871
  /* Special symbol.  */
872
  unsigned char r_ssym;
873
  /* Third relocation.  */
874
  unsigned char r_type3;
875
  /* Second relocation.  */
876
  unsigned char r_type2;
877
  /* First relocation.  */
878
  unsigned char r_type;
879
} Elf64_Mips_Internal_Rel;
880
 
881
/* An entry in a 64 bit SHT_RELA section.  */
882
 
883
typedef struct
884
{
885
  /* Address of relocation.  */
886
  unsigned char r_offset[8];
887
  /* Symbol index.  */
888
  unsigned char r_sym[4];
889
  /* Special symbol.  */
890
  unsigned char r_ssym[1];
891
  /* Third relocation.  */
892
  unsigned char r_type3[1];
893
  /* Second relocation.  */
894
  unsigned char r_type2[1];
895
  /* First relocation.  */
896
  unsigned char r_type[1];
897
  /* Addend.  */
898
  unsigned char r_addend[8];
899
} Elf64_Mips_External_Rela;
900
 
901
typedef struct
902
{
903
  /* Address of relocation.  */
904
  bfd_vma r_offset;
905
  /* Symbol index.  */
906
  unsigned long r_sym;
907
  /* Special symbol.  */
908
  unsigned char r_ssym;
909
  /* Third relocation.  */
910
  unsigned char r_type3;
911
  /* Second relocation.  */
912
  unsigned char r_type2;
913
  /* First relocation.  */
914
  unsigned char r_type;
915
  /* Addend.  */
916
  bfd_signed_vma r_addend;
917
} Elf64_Mips_Internal_Rela;
918
 
919
/* MIPS ELF 64 relocation info access macros.  */
920
#define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff)
921
#define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff)
922
#define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff)
923
#define ELF64_MIPS_R_TYPE(i) ((i) & 0xff)
924
 
925
/* Values found in the r_ssym field of a relocation entry.  */
926
 
927
/* No relocation.  */
928
#define RSS_UNDEF       0
929
 
930
/* Value of GP.  */
931
#define RSS_GP          1
932
 
933
/* Value of GP in object being relocated.  */
934
#define RSS_GP0         2
935
 
936
/* Address of location being relocated.  */
937
#define RSS_LOC         3
938
 
939
/* A SHT_MIPS_OPTIONS section contains a series of options, each of
940
   which starts with this header.  */
941
 
942
typedef struct
943
{
944
  /* Type of option.  */
945
  unsigned char kind[1];
946
  /* Size of option descriptor, including header.  */
947
  unsigned char size[1];
948
  /* Section index of affected section, or 0 for global option.  */
949
  unsigned char section[2];
950
  /* Information specific to this kind of option.  */
951
  unsigned char info[4];
952
} Elf_External_Options;
953
 
954
typedef struct
955
{
956
  /* Type of option.  */
957
  unsigned char kind;
958
  /* Size of option descriptor, including header.  */
959
  unsigned char size;
960
  /* Section index of affected section, or 0 for global option.  */
961
  unsigned short section;
962
  /* Information specific to this kind of option.  */
963
  unsigned long info;
964
} Elf_Internal_Options;
965
 
966
/* MIPS ELF option header swapping routines.  */
967
extern void bfd_mips_elf_swap_options_in
968
  (bfd *, const Elf_External_Options *, Elf_Internal_Options *);
969
extern void bfd_mips_elf_swap_options_out
970
  (bfd *, const Elf_Internal_Options *, Elf_External_Options *);
971
 
972
/* Values which may appear in the kind field of an Elf_Options
973
   structure.  */
974
 
975
/* Undefined.  */
976
#define ODK_NULL        0
977
 
978
/* Register usage and GP value.  */
979
#define ODK_REGINFO     1
980
 
981
/* Exception processing information.  */
982
#define ODK_EXCEPTIONS  2
983
 
984
/* Section padding information.  */
985
#define ODK_PAD         3
986
 
987
/* Hardware workarounds performed.  */
988
#define ODK_HWPATCH     4
989
 
990
/* Fill value used by the linker.  */
991
#define ODK_FILL        5
992
 
993
/* Reserved space for desktop tools.  */
994
#define ODK_TAGS        6
995
 
996
/* Hardware workarounds, AND bits when merging.  */
997
#define ODK_HWAND       7
998
 
999
/* Hardware workarounds, OR bits when merging.  */
1000
#define ODK_HWOR        8
1001
 
1002
/* GP group to use for text/data sections.  */
1003
#define ODK_GP_GROUP    9
1004
 
1005
/* ID information.  */
1006
#define ODK_IDENT       10
1007
 
1008
/* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
1009
   structure.  In the 64 bit ABI, it is the following structure.  The
1010
   info field of the options header is not used.  */
1011
 
1012
typedef struct
1013
{
1014
  /* Mask of general purpose registers used.  */
1015
  unsigned char ri_gprmask[4];
1016
  /* Padding.  */
1017
  unsigned char ri_pad[4];
1018
  /* Mask of co-processor registers used.  */
1019
  unsigned char ri_cprmask[4][4];
1020
  /* GP register value for this object file.  */
1021
  unsigned char ri_gp_value[8];
1022
} Elf64_External_RegInfo;
1023
 
1024
typedef struct
1025
{
1026
  /* Mask of general purpose registers used.  */
1027
  unsigned long ri_gprmask;
1028
  /* Padding.  */
1029
  unsigned long ri_pad;
1030
  /* Mask of co-processor registers used.  */
1031
  unsigned long ri_cprmask[4];
1032
  /* GP register value for this object file.  */
1033
  bfd_vma ri_gp_value;
1034
} Elf64_Internal_RegInfo;
1035
 
1036
typedef struct
1037
{
1038
  /* The hash value computed from the name of the corresponding
1039
     dynamic symbol.  */
1040
  unsigned char ms_hash_value[4];
1041
  /* Contains both the dynamic relocation index and the symbol flags
1042
     field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
1043
     to access the individual values.  The dynamic relocation index
1044
     identifies the first entry in the .rel.dyn section that
1045
     references the dynamic symbol corresponding to this msym entry.
1046
     If the index is 0, no dynamic relocations are associated with the
1047
     symbol.  The symbol flags field is reserved for future use.  */
1048
  unsigned char ms_info[4];
1049
} Elf32_External_Msym;
1050
 
1051
typedef struct
1052
{
1053
  /* The hash value computed from the name of the corresponding
1054
     dynamic symbol.  */
1055
  unsigned long ms_hash_value;
1056
  /* Contains both the dynamic relocation index and the symbol flags
1057
     field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
1058
     to access the individual values.  The dynamic relocation index
1059
     identifies the first entry in the .rel.dyn section that
1060
     references the dynamic symbol corresponding to this msym entry.
1061
     If the index is 0, no dynamic relocations are associated with the
1062
     symbol.  The symbol flags field is reserved for future use.  */
1063
  unsigned long ms_info;
1064
} Elf32_Internal_Msym;
1065
 
1066
#define ELF32_MS_REL_INDEX(i) ((i) >> 8)
1067
#define ELF32_MS_FLAGS(i)     (i) & 0xff)
1068
#define ELF32_MS_INFO(r, f)   (((r) << 8) + ((f) & 0xff))
1069
 
1070
/* MIPS ELF reginfo swapping routines.  */
1071
extern void bfd_mips_elf64_swap_reginfo_in
1072
  (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *);
1073
extern void bfd_mips_elf64_swap_reginfo_out
1074
  (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *);
1075
 
1076
/* Masks for the info work of an ODK_EXCEPTIONS descriptor.  */
1077
#define OEX_FPU_MIN     0x1f    /* FPEs which must be enabled.  */
1078
#define OEX_FPU_MAX     0x1f00  /* FPEs which may be enabled.  */
1079
#define OEX_PAGE0       0x10000 /* Page zero must be mapped.  */
1080
#define OEX_SMM         0x20000 /* Force sequential memory mode.  */
1081
#define OEX_FPDBUG      0x40000 /* Force precise floating-point
1082
                                   exceptions (debug mode).  */
1083
#define OEX_DISMISS     0x80000 /* Dismiss invalid address faults.  */
1084
 
1085
/* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX.  */
1086
#define OEX_FPU_INVAL   0x10    /* Invalid operation exception.  */
1087
#define OEX_FPU_DIV0    0x08    /* Division by zero exception.  */
1088
#define OEX_FPU_OFLO    0x04    /* Overflow exception.  */
1089
#define OEX_FPU_UFLO    0x02    /* Underflow exception.  */
1090
#define OEX_FPU_INEX    0x01    /* Inexact exception.  */
1091
 
1092
/* Masks for the info word of an ODK_PAD descriptor.  */
1093
#define OPAD_PREFIX     0x01
1094
#define OPAD_POSTFIX    0x02
1095
#define OPAD_SYMBOL     0x04
1096
 
1097
/* Masks for the info word of an ODK_HWPATCH descriptor.  */
1098
#define OHW_R4KEOP      0x00000001      /* R4000 end-of-page patch.  */
1099
#define OHW_R8KPFETCH   0x00000002      /* May need R8000 prefetch patch.  */
1100
#define OHW_R5KEOP      0x00000004      /* R5000 end-of-page patch.  */
1101
#define OHW_R5KCVTL     0x00000008      /* R5000 cvt.[ds].l bug
1102
                                           (clean == 1).  */
1103
#define OHW_R10KLDL     0x00000010      /* Needs R10K misaligned
1104
                                           load patch. */
1105
 
1106
/* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor.  */
1107
#define OGP_GROUP       0x0000ffff      /* GP group number.  */
1108
#define OGP_SELF        0xffff0000      /* Self-contained GP groups.  */
1109
 
1110
/* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor.  */
1111
#define OHWA0_R4KEOP_CHECKED    0x00000001
1112
#define OHWA0_R4KEOP_CLEAN      0x00000002
1113
 
1114
 
1115
/* Object attribute tags.  */
1116
enum
1117
{
1118
  /* 0-3 are generic.  */
1119
  Tag_GNU_MIPS_ABI_FP = 4, /* Value 1 for hard-float -mdouble-float, 2
1120
                              for hard-float -msingle-float, 3 for
1121
                              soft-float, 4 for -mips32r2 -mfp64; 0 for
1122
                              not tagged or not using any ABIs affected
1123
                              by the differences.  */
1124
};
1125
 
1126
#endif /* _ELF_MIPS_H */

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