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[/] [or1k/] [trunk/] [gdb-5.0/] [include/] [elf/] [mips.h] - Blame information for rev 1765

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1 106 markom
/* MIPS ELF support for BFD.
2
   Copyright (C) 1993, 1994, 1995, 1996, 1998 Free Software Foundation, Inc.
3
 
4
   By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
5
   information in the System V Application Binary Interface, MIPS
6
   Processor Supplement.
7
 
8
This file is part of BFD, the Binary File Descriptor library.
9
 
10
This program is free software; you can redistribute it and/or modify
11
it under the terms of the GNU General Public License as published by
12
the Free Software Foundation; either version 2 of the License, or
13
(at your option) any later version.
14
 
15
This program is distributed in the hope that it will be useful,
16
but WITHOUT ANY WARRANTY; without even the implied warranty of
17
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18
GNU General Public License for more details.
19
 
20
You should have received a copy of the GNU General Public License
21
along with this program; if not, write to the Free Software
22
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
23
 
24
/* This file holds definitions specific to the MIPS ELF ABI.  Note
25
   that most of this is not actually implemented by BFD.  */
26
 
27
#ifndef _ELF_MIPS_H
28
#define _ELF_MIPS_H
29
 
30
#include "elf/reloc-macros.h"
31
 
32
/* Relocation types.  */
33
START_RELOC_NUMBERS (elf_mips_reloc_type)
34
  RELOC_NUMBER (R_MIPS_NONE, 0)
35
  RELOC_NUMBER (R_MIPS_16, 1)
36
  RELOC_NUMBER (R_MIPS_32, 2)
37
  RELOC_NUMBER (R_MIPS_REL32, 3)
38
  RELOC_NUMBER (R_MIPS_26, 4)
39
  RELOC_NUMBER (R_MIPS_HI16, 5)
40
  RELOC_NUMBER (R_MIPS_LO16, 6)
41
  RELOC_NUMBER (R_MIPS_GPREL16, 7)
42
  RELOC_NUMBER (R_MIPS_LITERAL, 8)
43
  RELOC_NUMBER (R_MIPS_GOT16, 9)
44
  RELOC_NUMBER (R_MIPS_PC16, 10)
45
  RELOC_NUMBER (R_MIPS_CALL16, 11)
46
  RELOC_NUMBER (R_MIPS_GPREL32, 12)
47
  /* The remaining relocs are defined on Irix, although they are not
48
     in the MIPS ELF ABI.  */
49
  RELOC_NUMBER (R_MIPS_UNUSED1, 13)
50
  RELOC_NUMBER (R_MIPS_UNUSED2, 14)
51
  RELOC_NUMBER (R_MIPS_UNUSED3, 15)
52
  RELOC_NUMBER (R_MIPS_SHIFT5, 16)
53
  RELOC_NUMBER (R_MIPS_SHIFT6, 17)
54
  RELOC_NUMBER (R_MIPS_64, 18)
55
  RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
56
  RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
57
  RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
58
  RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
59
  RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
60
  RELOC_NUMBER (R_MIPS_SUB, 24)
61
  RELOC_NUMBER (R_MIPS_INSERT_A, 25)
62
  RELOC_NUMBER (R_MIPS_INSERT_B, 26)
63
  RELOC_NUMBER (R_MIPS_DELETE, 27)
64
  RELOC_NUMBER (R_MIPS_HIGHER, 28)
65
  RELOC_NUMBER (R_MIPS_HIGHEST, 29)
66
  RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
67
  RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
68
  RELOC_NUMBER (R_MIPS_SCN_DISP, 32)
69
  RELOC_NUMBER (R_MIPS_REL16, 33)
70
  RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34)
71
  RELOC_NUMBER (R_MIPS_PJUMP, 35)
72
  RELOC_NUMBER (R_MIPS_RELGOT, 36)
73
  RELOC_NUMBER (R_MIPS_JALR, 37)
74
  RELOC_NUMBER (R_MIPS_max, 38)
75
  /* These relocs are used for the mips16.  */
76
  RELOC_NUMBER (R_MIPS16_26, 100)
77
  RELOC_NUMBER (R_MIPS16_GPREL, 101)
78
  /* These are GNU extensions to handle embedded-pic.  */
79
  RELOC_NUMBER (R_MIPS_PC32, 248)
80
  RELOC_NUMBER (R_MIPS_PC64, 249)
81
  RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250)
82
  RELOC_NUMBER (R_MIPS_GNU_REL_LO16, 251)
83
  RELOC_NUMBER (R_MIPS_GNU_REL_HI16, 252)
84
  /* These are GNU extensions to enable C++ vtable garbage collection.  */
85
  RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
86
  RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
87
END_RELOC_NUMBERS
88
 
89
/* Processor specific flags for the ELF header e_flags field.  */
90
 
91
/* At least one .noreorder directive appears in the source.  */
92
#define EF_MIPS_NOREORDER       0x00000001
93
 
94
/* File contains position independent code.  */
95
#define EF_MIPS_PIC             0x00000002
96
 
97
/* Code in file uses the standard calling sequence for calling
98
   position independent code.  */
99
#define EF_MIPS_CPIC            0x00000004
100
 
101
/* Code in file uses new ABI (-n32 on Irix 6).  */
102
#define EF_MIPS_ABI2            0x00000020
103
 
104
/* Indicates code compiled for a 64-bit machine in 32-bit mode.
105
   (regs are 32-bits wide.) */
106
#define EF_MIPS_32BITMODE       0x00000100
107
 
108
/* Four bit MIPS architecture field.  */
109
#define EF_MIPS_ARCH            0xf0000000
110
 
111
/* -mips1 code.  */
112
#define E_MIPS_ARCH_1           0x00000000
113
 
114
/* -mips2 code.  */
115
#define E_MIPS_ARCH_2           0x10000000
116
 
117
/* -mips3 code.  */
118
#define E_MIPS_ARCH_3           0x20000000
119
 
120
/* -mips4 code.  */
121
#define E_MIPS_ARCH_4           0x30000000
122
 
123
/* The ABI of the file.  Also see EF_MIPS_ABI2 above. */
124
#define EF_MIPS_ABI             0x0000F000
125
 
126
/* The original o32 abi. */
127
#define E_MIPS_ABI_O32          0x00001000
128
 
129
/* O32 extended to work on 64 bit architectures */
130
#define E_MIPS_ABI_O64          0x00002000
131
 
132
/* EABI in 32 bit mode */
133
#define E_MIPS_ABI_EABI32       0x00003000
134
 
135
/* EABI in 64 bit mode */
136
#define E_MIPS_ABI_EABI64       0x00004000
137
 
138
 
139
/* Machine variant if we know it.  This field was invented at Cygnus,
140
   but it is hoped that other vendors will adopt it.  If some standard
141
   is developed, this code should be changed to follow it. */
142
 
143
#define EF_MIPS_MACH            0x00FF0000
144
 
145
/* Cygnus is choosing values between 80 and 9F;
146
   00 - 7F should be left for a future standard;
147
   the rest are open. */
148
 
149
#define E_MIPS_MACH_3900        0x00810000
150
 
151
#define E_MIPS_MACH_4010        0x00820000
152
#define E_MIPS_MACH_4100        0x00830000
153
#define E_MIPS_MACH_4650        0x00850000
154
#define E_MIPS_MACH_4111        0x00880000
155
 
156
 
157
/* Processor specific section indices.  These sections do not actually
158
   exist.  Symbols with a st_shndx field corresponding to one of these
159
   values have a special meaning.  */
160
 
161
/* Defined and allocated common symbol.  Value is virtual address.  If
162
   relocated, alignment must be preserved.  */
163
#define SHN_MIPS_ACOMMON        0xff00
164
 
165
/* Defined and allocated text symbol.  Value is virtual address.
166
   Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
167
#define SHN_MIPS_TEXT           0xff01
168
 
169
/* Defined and allocated data symbol.  Value is virtual address.
170
   Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
171
#define SHN_MIPS_DATA           0xff02
172
 
173
/* Small common symbol.  */
174
#define SHN_MIPS_SCOMMON        0xff03
175
 
176
/* Small undefined symbol.  */
177
#define SHN_MIPS_SUNDEFINED     0xff04
178
 
179
/* Processor specific section types.  */
180
 
181
/* Section contains the set of dynamic shared objects used when
182
   statically linking.  */
183
#define SHT_MIPS_LIBLIST        0x70000000
184
 
185
/* I'm not sure what this is, but it's used on Irix 5.  */
186
#define SHT_MIPS_MSYM           0x70000001
187
 
188
/* Section contains list of symbols whose definitions conflict with
189
   symbols defined in shared objects.  */
190
#define SHT_MIPS_CONFLICT       0x70000002
191
 
192
/* Section contains the global pointer table.  */
193
#define SHT_MIPS_GPTAB          0x70000003
194
 
195
/* Section contains microcode information.  The exact format is
196
   unspecified.  */
197
#define SHT_MIPS_UCODE          0x70000004
198
 
199
/* Section contains some sort of debugging information.  The exact
200
   format is unspecified.  It's probably ECOFF symbols.  */
201
#define SHT_MIPS_DEBUG          0x70000005
202
 
203
/* Section contains register usage information.  */
204
#define SHT_MIPS_REGINFO        0x70000006
205
 
206
/* ??? */
207
#define SHT_MIPS_PACKAGE        0x70000007
208
 
209
/* ??? */
210
#define SHT_MIPS_PACKSYM        0x70000008
211
 
212
/* ??? */
213
#define SHT_MIPS_RELD           0x70000009
214
 
215
/* Section contains interface information.  */
216
#define SHT_MIPS_IFACE          0x7000000b
217
 
218
/* Section contains description of contents of another section.  */
219
#define SHT_MIPS_CONTENT        0x7000000c
220
 
221
/* Section contains miscellaneous options.  */
222
#define SHT_MIPS_OPTIONS        0x7000000d
223
 
224
/* ??? */
225
#define SHT_MIPS_SHDR           0x70000010
226
 
227
/* ??? */
228
#define SHT_MIPS_FDESC          0x70000011
229
 
230
/* ??? */
231
#define SHT_MIPS_EXTSYM         0x70000012
232
 
233
/* ??? */
234
#define SHT_MIPS_DENSE          0x70000013
235
 
236
/* ??? */
237
#define SHT_MIPS_PDESC          0x70000014
238
 
239
/* ??? */
240
#define SHT_MIPS_LOCSYM         0x70000015
241
 
242
/* ??? */
243
#define SHT_MIPS_AUXSYM         0x70000016
244
 
245
/* ??? */
246
#define SHT_MIPS_OPTSYM         0x70000017
247
 
248
/* ??? */
249
#define SHT_MIPS_LOCSTR         0x70000018
250
 
251
/* ??? */
252
#define SHT_MIPS_LINE           0x70000019
253
 
254
/* ??? */
255
#define SHT_MIPS_RFDESC         0x7000001a
256
 
257
/* ??? */
258
#define SHT_MIPS_DELTASYM       0x7000001b
259
 
260
/* ??? */
261
#define SHT_MIPS_DELTAINST      0x7000001c
262
 
263
/* ??? */
264
#define SHT_MIPS_DELTACLASS     0x7000001d
265
 
266
/* DWARF debugging section.  */
267
#define SHT_MIPS_DWARF          0x7000001e
268
 
269
/* ??? */
270
#define SHT_MIPS_DELTADECL      0x7000001f
271
 
272
/* List of libraries the binary depends on.  Includes a time stamp, version
273
   number.  */
274
#define SHT_MIPS_SYMBOL_LIB     0x70000020
275
 
276
/* Events section.  */
277
#define SHT_MIPS_EVENTS         0x70000021
278
 
279
/* ??? */
280
#define SHT_MIPS_TRANSLATE      0x70000022
281
 
282
/* ??? */
283
#define SHT_MIPS_PIXIE          0x70000023
284
 
285
/* ??? */
286
#define SHT_MIPS_XLATE          0x70000024
287
 
288
/* ??? */
289
#define SHT_MIPS_XLATE_DEBUG    0x70000025
290
 
291
/* ??? */
292
#define SHT_MIPS_WHIRL          0x70000026
293
 
294
/* ??? */
295
#define SHT_MIPS_EH_REGION      0x70000027
296
 
297
/* ??? */
298
#define SHT_MIPS_XLATE_OLD      0x70000028
299
 
300
/* ??? */
301
#define SHT_MIPS_PDR_EXCEPTION  0x70000029
302
 
303
 
304
/* A section of type SHT_MIPS_LIBLIST contains an array of the
305
   following structure.  The sh_link field is the section index of the
306
   string table.  The sh_info field is the number of entries in the
307
   section.  */
308
typedef struct
309
{
310
  /* String table index for name of shared object.  */
311
  unsigned long l_name;
312
  /* Time stamp.  */
313
  unsigned long l_time_stamp;
314
  /* Checksum of symbol names and common sizes.  */
315
  unsigned long l_checksum;
316
  /* String table index for version.  */
317
  unsigned long l_version;
318
  /* Flags.  */
319
  unsigned long l_flags;
320
} Elf32_Lib;
321
 
322
/* The external version of Elf32_Lib.  */
323
typedef struct
324
{
325
  unsigned char l_name[4];
326
  unsigned char l_time_stamp[4];
327
  unsigned char l_checksum[4];
328
  unsigned char l_version[4];
329
  unsigned char l_flags[4];
330
} Elf32_External_Lib;
331
 
332
/* The l_flags field of an Elf32_Lib structure may contain the
333
   following flags.  */
334
 
335
/* Require an exact match at runtime.  */
336
#define LL_EXACT_MATCH          0x00000001
337
 
338
/* Ignore version incompatibilities at runtime.  */
339
#define LL_IGNORE_INT_VER       0x00000002
340
 
341
/* Require matching minor version number.  */
342
#define LL_REQUIRE_MINOR        0x00000004
343
 
344
/* ??? */
345
#define LL_EXPORTS              0x00000008
346
 
347
/* Delay loading of this library until really needed.  */
348
#define LL_DELAY_LOAD           0x00000010
349
 
350
/* ??? Delta C++ stuff ??? */
351
#define LL_DELTA                0x00000020
352
 
353
 
354
/* A section of type SHT_MIPS_CONFLICT is an array of indices into the
355
   .dynsym section.  Each element has the following type.  */
356
typedef unsigned long Elf32_Conflict;
357
typedef unsigned char Elf32_External_Conflict[4];
358
 
359
typedef unsigned long Elf64_Conflict;
360
typedef unsigned char Elf64_External_Conflict[8];
361
 
362
/* A section of type SHT_MIPS_GPTAB contains information about how
363
   much GP space would be required for different -G arguments.  This
364
   information is only used so that the linker can provide informative
365
   suggestions as to the best -G value to use.  The sh_info field is
366
   the index of the section for which this information applies.  The
367
   contents of the section are an array of the following union.  The
368
   first element uses the gt_header field.  The remaining elements use
369
   the gt_entry field.  */
370
typedef union
371
{
372
  struct
373
    {
374
      /* -G value actually used for this object file.  */
375
      unsigned long gt_current_g_value;
376
      /* Unused.  */
377
      unsigned long gt_unused;
378
    } gt_header;
379
  struct
380
    {
381
      /* If this -G argument has been used...  */
382
      unsigned long gt_g_value;
383
      /* ...this many GP section bytes would be required.  */
384
      unsigned long gt_bytes;
385
    } gt_entry;
386
} Elf32_gptab;
387
 
388
/* The external version of Elf32_gptab.  */
389
 
390
typedef union
391
{
392
  struct
393
    {
394
      unsigned char gt_current_g_value[4];
395
      unsigned char gt_unused[4];
396
    } gt_header;
397
  struct
398
    {
399
      unsigned char gt_g_value[4];
400
      unsigned char gt_bytes[4];
401
    } gt_entry;
402
} Elf32_External_gptab;
403
 
404
/* A section of type SHT_MIPS_REGINFO contains the following
405
   structure.  */
406
typedef struct
407
{
408
  /* Mask of general purpose registers used.  */
409
  unsigned long ri_gprmask;
410
  /* Mask of co-processor registers used.  */
411
  unsigned long ri_cprmask[4];
412
  /* GP register value for this object file.  */
413
  long ri_gp_value;
414
} Elf32_RegInfo;
415
 
416
/* The external version of the Elf_RegInfo structure.  */
417
typedef struct
418
{
419
  unsigned char ri_gprmask[4];
420
  unsigned char ri_cprmask[4][4];
421
  unsigned char ri_gp_value[4];
422
} Elf32_External_RegInfo;
423
 
424
/* MIPS ELF .reginfo swapping routines.  */
425
extern void bfd_mips_elf32_swap_reginfo_in
426
  PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *));
427
extern void bfd_mips_elf32_swap_reginfo_out
428
  PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *));
429
 
430
/* Processor specific section flags.  */
431
 
432
/* This section must be in the global data area.  */
433
#define SHF_MIPS_GPREL          0x10000000
434
 
435
/* This section should be merged.  */
436
#define SHF_MIPS_MERGE          0x20000000
437
 
438
/* This section contains 32 bit addresses.  */
439
#define SHF_MIPS_ADDR32         0x40000000
440
 
441
/* This section contains 64 bit addresses.  */
442
#define SHF_MIPS_ADDR64         0x80000000
443
 
444
/* This section may not be stripped.  */
445
#define SHF_MIPS_NOSTRIP        0x08000000
446
 
447
/* This section is local to threads.  */
448
#define SHF_MIPS_LOCAL          0x04000000
449
 
450
/* Linker should generate implicit weak names for this section.  */
451
#define SHF_MIPS_NAMES          0x02000000
452
 
453
/* Processor specific program header types.  */
454
 
455
/* Register usage information.  Identifies one .reginfo section.  */
456
#define PT_MIPS_REGINFO         0x70000000
457
 
458
/* Runtime procedure table.  */
459
#define PT_MIPS_RTPROC          0x70000001
460
 
461
/* Options (for what ???).  */
462
#define PT_MIPS_OPTIONS         0x70000002
463
 
464
/* Processor specific dynamic array tags.  */
465
 
466
/* 32 bit version number for runtime linker interface.  */
467
#define DT_MIPS_RLD_VERSION     0x70000001
468
 
469
/* Time stamp.  */
470
#define DT_MIPS_TIME_STAMP      0x70000002
471
 
472
/* Checksum of external strings and common sizes.  */
473
#define DT_MIPS_ICHECKSUM       0x70000003
474
 
475
/* Index of version string in string table.  */
476
#define DT_MIPS_IVERSION        0x70000004
477
 
478
/* 32 bits of flags.  */
479
#define DT_MIPS_FLAGS           0x70000005
480
 
481
/* Base address of the segment.  */
482
#define DT_MIPS_BASE_ADDRESS    0x70000006
483
 
484
/* ??? */
485
#define DT_MIPS_MSYM            0x70000007
486
 
487
/* Address of .conflict section.  */
488
#define DT_MIPS_CONFLICT        0x70000008
489
 
490
/* Address of .liblist section.  */
491
#define DT_MIPS_LIBLIST         0x70000009
492
 
493
/* Number of local global offset table entries.  */
494
#define DT_MIPS_LOCAL_GOTNO     0x7000000a
495
 
496
/* Number of entries in the .conflict section.  */
497
#define DT_MIPS_CONFLICTNO      0x7000000b
498
 
499
/* Number of entries in the .liblist section.  */
500
#define DT_MIPS_LIBLISTNO       0x70000010
501
 
502
/* Number of entries in the .dynsym section.  */
503
#define DT_MIPS_SYMTABNO        0x70000011
504
 
505
/* Index of first external dynamic symbol not referenced locally.  */
506
#define DT_MIPS_UNREFEXTNO      0x70000012
507
 
508
/* Index of first dynamic symbol in global offset table.  */
509
#define DT_MIPS_GOTSYM          0x70000013
510
 
511
/* Number of page table entries in global offset table.  */
512
#define DT_MIPS_HIPAGENO        0x70000014
513
 
514
/* Address of run time loader map, used for debugging.  */
515
#define DT_MIPS_RLD_MAP         0x70000016
516
 
517
/* Delta C++ class definition.  */
518
#define DT_MIPS_DELTA_CLASS     0x70000017
519
 
520
/* Number of entries in DT_MIPS_DELTA_CLASS.  */
521
#define DT_MIPS_DELTA_CLASS_NO  0x70000018
522
 
523
/* Delta C++ class instances.  */
524
#define DT_MIPS_DELTA_INSTANCE  0x70000019
525
 
526
/* Number of entries in DT_MIPS_DELTA_INSTANCE.  */
527
#define DT_MIPS_DELTA_INSTANCE_NO       0x7000001a
528
 
529
/* Delta relocations.  */
530
#define DT_MIPS_DELTA_RELOC     0x7000001b
531
 
532
/* Number of entries in DT_MIPS_DELTA_RELOC.  */
533
#define DT_MIPS_DELTA_RELOC_NO  0x7000001c
534
 
535
/* Delta symbols that Delta relocations refer to.  */
536
#define DT_MIPS_DELTA_SYM       0x7000001d
537
 
538
/* Number of entries in DT_MIPS_DELTA_SYM.  */
539
#define DT_MIPS_DELTA_SYM_NO    0x7000001e
540
 
541
/* Delta symbols that hold class declarations.  */
542
#define DT_MIPS_DELTA_CLASSSYM  0x70000020
543
 
544
/* Number of entries in DT_MIPS_DELTA_CLASSSYM.  */
545
#define DT_MIPS_DELTA_CLASSSYM_NO       0x70000021
546
 
547
/* Flags indicating information about C++ flavor.  */
548
#define DT_MIPS_CXX_FLAGS       0x70000022
549
 
550
/* Pixie information (???).  */
551
#define DT_MIPS_PIXIE_INIT      0x70000023
552
 
553
/* ??? */
554
#define DT_MIPS_SYMBOL_LIB      0x70000024
555
 
556
/* ??? */
557
#define DT_MIPS_LOCALPAGE_GOTIDX        0x70000025
558
 
559
/* ??? */
560
#define DT_MIPS_LOCAL_GOTIDX    0x70000026
561
 
562
/* ??? */
563
#define DT_MIPS_HIDDEN_GOTIDX   0x70000027
564
 
565
/* ??? */
566
#define DT_MIPS_PROTECTED_GOTIDX        0x70000028
567
 
568
/* Address of `.MIPS.options'.  */
569
#define DT_MIPS_OPTIONS         0x70000029
570
 
571
/* Address of `.interface'.  */
572
#define DT_MIPS_INTERFACE       0x7000002a
573
 
574
/* ??? */
575
#define DT_MIPS_DYNSTR_ALIGN    0x7000002b
576
 
577
/* Size of the .interface section.  */
578
#define DT_MIPS_INTERFACE_SIZE  0x7000002c
579
 
580
/* Size of rld_text_resolve function stored in the GOT.  */
581
#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR   0x7000002d
582
 
583
/* Default suffix of DSO to be added by rld on dlopen() calls.  */
584
#define DT_MIPS_PERF_SUFFIX     0x7000002e
585
 
586
/* Size of compact relocation section (O32).  */
587
#define DT_MIPS_COMPACT_SIZE    0x7000002f
588
 
589
/* GP value for auxiliary GOTs.  */
590
#define DT_MIPS_GP_VALUE        0x70000030
591
 
592
/* Address of auxiliary .dynamic.  */
593
#define DT_MIPS_AUX_DYNAMIC     0x70000031
594
 
595
/* Flags which may appear in a DT_MIPS_FLAGS entry.  */
596
 
597
/* No flags.  */
598
#define RHF_NONE                0x00000000
599
 
600
/* Uses shortcut pointers.  */
601
#define RHF_QUICKSTART          0x00000001
602
 
603
/* Hash size is not a power of two.  */
604
#define RHF_NOTPOT              0x00000002
605
 
606
/* Ignore LD_LIBRARY_PATH.  */
607
#define RHS_NO_LIBRARY_REPLACEMENT \
608
                                0x00000004
609
 
610
#define RHF_NO_MOVE                0x00000008
611
#define RHF_SGI_ONLY               0x00000010
612
#define RHF_GUARANTEE_INIT         0x00000020
613
#define RHF_DELTA_C_PLUS_PLUS      0x00000040
614
#define RHF_GUARANTEE_START_INIT   0x00000080
615
#define RHF_PIXIE                  0x00000100
616
#define RHF_DEFAULT_DELAY_LOAD     0x00000200
617
#define RHF_REQUICKSTART           0x00000400
618
#define RHF_REQUICKSTARTED         0x00000800
619
#define RHF_CORD                   0x00001000
620
#define RHF_NO_UNRES_UNDEF         0x00002000
621
#define RHF_RLD_ORDER_SAFE         0x00004000
622
 
623
/* Special values for the st_other field in the symbol table.  These
624
   are used in an Irix 5 dynamic symbol table.  */
625
 
626
#define STO_DEFAULT             STV_DEFAULT
627
#define STO_INTERNAL            STV_INTERNAL
628
#define STO_HIDDEN              STV_HIDDEN
629
#define STO_PROTECTED           STV_PROTECTED
630
 
631
/* This value is used for a mips16 .text symbol.  */
632
#define STO_MIPS16              0xf0
633
 
634
/* The 64-bit MIPS ELF ABI uses an unusual reloc format.  Each
635
   relocation entry specifies up to three actual relocations, all at
636
   the same address.  The first relocation which required a symbol
637
   uses the symbol in the r_sym field.  The second relocation which
638
   requires a symbol uses the symbol in the r_ssym field.  If all
639
   three relocations require a symbol, the third one uses a zero
640
   value.  */
641
 
642
/* An entry in a 64 bit SHT_REL section.  */
643
 
644
typedef struct
645
{
646
  /* Address of relocation.  */
647
  unsigned char r_offset[8];
648
  /* Symbol index.  */
649
  unsigned char r_sym[4];
650
  /* Special symbol.  */
651
  unsigned char r_ssym[1];
652
  /* Third relocation.  */
653
  unsigned char r_type3[1];
654
  /* Second relocation.  */
655
  unsigned char r_type2[1];
656
  /* First relocation.  */
657
  unsigned char r_type[1];
658
} Elf64_Mips_External_Rel;
659
 
660
typedef struct
661
{
662
  /* Address of relocation.  */
663
  bfd_vma r_offset;
664
  /* Symbol index.  */
665
  unsigned long r_sym;
666
  /* Special symbol.  */
667
  unsigned char r_ssym;
668
  /* Third relocation.  */
669
  unsigned char r_type3;
670
  /* Second relocation.  */
671
  unsigned char r_type2;
672
  /* First relocation.  */
673
  unsigned char r_type;
674
} Elf64_Mips_Internal_Rel;
675
 
676
/* An entry in a 64 bit SHT_RELA section.  */
677
 
678
typedef struct
679
{
680
  /* Address of relocation.  */
681
  unsigned char r_offset[8];
682
  /* Symbol index.  */
683
  unsigned char r_sym[4];
684
  /* Special symbol.  */
685
  unsigned char r_ssym[1];
686
  /* Third relocation.  */
687
  unsigned char r_type3[1];
688
  /* Second relocation.  */
689
  unsigned char r_type2[1];
690
  /* First relocation.  */
691
  unsigned char r_type[1];
692
  /* Addend.  */
693
  unsigned char r_addend[8];
694
} Elf64_Mips_External_Rela;
695
 
696
typedef struct
697
{
698
  /* Address of relocation.  */
699
  bfd_vma r_offset;
700
  /* Symbol index.  */
701
  unsigned long r_sym;
702
  /* Special symbol.  */
703
  unsigned char r_ssym;
704
  /* Third relocation.  */
705
  unsigned char r_type3;
706
  /* Second relocation.  */
707
  unsigned char r_type2;
708
  /* First relocation.  */
709
  unsigned char r_type;
710
  /* Addend.  */
711
  bfd_signed_vma r_addend;
712
} Elf64_Mips_Internal_Rela;
713
 
714
/* Values found in the r_ssym field of a relocation entry.  */
715
 
716
/* No relocation.  */
717
#define RSS_UNDEF       0
718
 
719
/* Value of GP.  */
720
#define RSS_GP          1
721
 
722
/* Value of GP in object being relocated.  */
723
#define RSS_GP0         2
724
 
725
/* Address of location being relocated.  */
726
#define RSS_LOC         3
727
 
728
/* A SHT_MIPS_OPTIONS section contains a series of options, each of
729
   which starts with this header.  */
730
 
731
typedef struct
732
{
733
  /* Type of option.  */
734
  unsigned char kind[1];
735
  /* Size of option descriptor, including header.  */
736
  unsigned char size[1];
737
  /* Section index of affected section, or 0 for global option.  */
738
  unsigned char section[2];
739
  /* Information specific to this kind of option.  */
740
  unsigned char info[4];
741
} Elf_External_Options;
742
 
743
typedef struct
744
{
745
  /* Type of option.  */
746
  unsigned char kind;
747
  /* Size of option descriptor, including header.  */
748
  unsigned char size;
749
  /* Section index of affected section, or 0 for global option.  */
750
  unsigned short section;
751
  /* Information specific to this kind of option.  */
752
  unsigned long info;
753
} Elf_Internal_Options;
754
 
755
/* MIPS ELF option header swapping routines.  */
756
extern void bfd_mips_elf_swap_options_in
757
  PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *));
758
extern void bfd_mips_elf_swap_options_out
759
  PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *));
760
 
761
/* Values which may appear in the kind field of an Elf_Options
762
   structure.  */
763
 
764
/* Undefined.  */
765
#define ODK_NULL        0
766
 
767
/* Register usage and GP value.  */
768
#define ODK_REGINFO     1
769
 
770
/* Exception processing information.  */
771
#define ODK_EXCEPTIONS  2
772
 
773
/* Section padding information.  */
774
#define ODK_PAD         3
775
 
776
/* Hardware workarounds performed.  */
777
#define ODK_HWPATCH     4
778
 
779
/* Fill value used by the linker.  */
780
#define ODK_FILL        5
781
 
782
/* Reserved space for desktop tools.  */
783
#define ODK_TAGS        6
784
 
785
/* Hardware workarounds, AND bits when merging.  */
786
#define ODK_HWAND       7
787
 
788
/* Hardware workarounds, OR bits when merging.  */
789
#define ODK_HWOR        8
790
 
791
/* GP group to use for text/data sections.  */
792
#define ODK_GP_GROUP    9
793
 
794
/* ID information.  */
795
#define ODK_IDENT       10
796
 
797
/* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
798
   structure.  In the 64 bit ABI, it is the following structure.  The
799
   info field of the options header is not used.  */
800
 
801
typedef struct
802
{
803
  /* Mask of general purpose registers used.  */
804
  unsigned char ri_gprmask[4];
805
  /* Padding.  */
806
  unsigned char ri_pad[4];
807
  /* Mask of co-processor registers used.  */
808
  unsigned char ri_cprmask[4][4];
809
  /* GP register value for this object file.  */
810
  unsigned char ri_gp_value[8];
811
} Elf64_External_RegInfo;
812
 
813
typedef struct
814
{
815
  /* Mask of general purpose registers used.  */
816
  unsigned long ri_gprmask;
817
  /* Padding.  */
818
  unsigned long ri_pad;
819
  /* Mask of co-processor registers used.  */
820
  unsigned long ri_cprmask[4];
821
  /* GP register value for this object file.  */
822
  bfd_vma ri_gp_value;
823
} Elf64_Internal_RegInfo;
824
 
825
typedef struct
826
{
827
  /* The hash value computed from the name of the corresponding
828
     dynamic symbol.  */
829
  unsigned char ms_hash_value[4];
830
  /* Contains both the dynamic relocation index and the symbol flags
831
     field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
832
     to access the individual values.  The dynamic relocation index
833
     identifies the first entry in the .rel.dyn section that
834
     references the dynamic symbol corresponding to this msym entry.
835
     If the index is 0, no dynamic relocations are associated with the
836
     symbol.  The symbol flags field is reserved for future use.  */
837
  unsigned char ms_info[4];
838
} Elf32_External_Msym;
839
 
840
typedef struct
841
{
842
  /* The hash value computed from the name of the corresponding
843
     dynamic symbol.  */
844
  unsigned long ms_hash_value;
845
  /* Contains both the dynamic relocation index and the symbol flags
846
     field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
847
     to access the individual values.  The dynamic relocation index
848
     identifies the first entry in the .rel.dyn section that
849
     references the dynamic symbol corresponding to this msym entry.
850
     If the index is 0, no dynamic relocations are associated with the
851
     symbol.  The symbol flags field is reserved for future use.  */
852
  unsigned long ms_info;
853
} Elf32_Internal_Msym;
854
 
855
#define ELF32_MS_REL_INDEX(i) ((i) >> 8)
856
#define ELF32_MS_FLAGS(i)     (i) & 0xff)
857
#define ELF32_MS_INFO(r, f)   (((r) << 8) + ((f) & 0xff))
858
 
859
/* MIPS ELF reginfo swapping routines.  */
860
extern void bfd_mips_elf64_swap_reginfo_in
861
  PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *));
862
extern void bfd_mips_elf64_swap_reginfo_out
863
  PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *));
864
 
865
/* Masks for the info work of an ODK_EXCEPTIONS descriptor.  */
866
#define OEX_FPU_MIN     0x1f    /* FPEs which must be enabled.  */
867
#define OEX_FPU_MAX     0x1f00  /* FPEs which may be enabled.  */
868
#define OEX_PAGE0       0x10000 /* Page zero must be mapped.  */
869
#define OEX_SMM         0x20000 /* Force sequential memory mode.  */
870
#define OEX_FPDBUG      0x40000 /* Force floating-point debug mode.  */
871
#define OEX_DISMISS     0x80000 /* Dismiss invalid address faults.  */
872
 
873
/* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX.  */
874
#define OEX_FPU_INVAL   0x10    /* Invalid operation exception.  */
875
#define OEX_FPU_DIV0    0x08    /* Division by zero exception.  */
876
#define OEX_FPU_OFLO    0x04    /* Overflow exception.  */
877
#define OEX_FPU_UFLO    0x02    /* Underflow exception.  */
878
#define OEX_FPU_INEX    0x01    /* Inexact exception.  */
879
 
880
/* Masks for the info word of an ODK_PAD descriptor.  */
881
#define OPAD_PREFIX     0x01
882
#define OPAD_POSTFIX    0x02
883
#define OPAD_SYMBOL     0x04
884
 
885
/* Masks for the info word of an ODK_HWPATCH descriptor.  */
886
#define OHW_R4KEOP      0x01    /* R4000 end-of-page patch.  */
887
#define OHW_R8KPFETCH   0x02    /* May need R8000 prefetch patch.  */
888
#define OHW_R5KEOP      0x04    /* R5000 end-of-page patch.  */
889
#define OHW_R5KCVTL     0x08    /* R5000 cvt.[ds].l bug (clean == 1).  */
890
 
891
/* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor.  */
892
#define OGP_GROUP       0x0000ffff      /* GP group number.  */
893
#define OGP_SELF        0xffff0000      /* Self-contained GP groups.  */
894
 
895
/* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor.  */
896
#define OHWA0_R4KEOP_CHECKED    0x00000001
897
#define OHWA0_R4KEOP_CLEAN      0x00000002
898
 
899
 
900
#endif /* _ELF_MIPS_H */

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