source: branches/libc-0.6/src/binutils/include/elf/mips.h

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1/* MIPS ELF support for BFD.
2 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
3 Free Software Foundation, Inc.
4
5 By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
6 information in the System V Application Binary Interface, MIPS
7 Processor Supplement.
8
9This file is part of BFD, the Binary File Descriptor library.
10
11This program is free software; you can redistribute it and/or modify
12it under the terms of the GNU General Public License as published by
13the Free Software Foundation; either version 2 of the License, or
14(at your option) any later version.
15
16This program is distributed in the hope that it will be useful,
17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19GNU General Public License for more details.
20
21You should have received a copy of the GNU General Public License
22along with this program; if not, write to the Free Software
23Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
24
25/* This file holds definitions specific to the MIPS ELF ABI. Note
26 that most of this is not actually implemented by BFD. */
27
28#ifndef _ELF_MIPS_H
29#define _ELF_MIPS_H
30
31#include "elf/reloc-macros.h"
32
33/* Relocation types. */
34START_RELOC_NUMBERS (elf_mips_reloc_type)
35 RELOC_NUMBER (R_MIPS_NONE, 0)
36 RELOC_NUMBER (R_MIPS_16, 1)
37 RELOC_NUMBER (R_MIPS_32, 2) /* In Elf 64: alias R_MIPS_ADD */
38 RELOC_NUMBER (R_MIPS_REL32, 3) /* In Elf 64: alias R_MIPS_REL */
39 RELOC_NUMBER (R_MIPS_26, 4)
40 RELOC_NUMBER (R_MIPS_HI16, 5)
41 RELOC_NUMBER (R_MIPS_LO16, 6)
42 RELOC_NUMBER (R_MIPS_GPREL16, 7) /* In Elf 64: alias R_MIPS_GPREL */
43 RELOC_NUMBER (R_MIPS_LITERAL, 8)
44 RELOC_NUMBER (R_MIPS_GOT16, 9) /* In Elf 64: alias R_MIPS_GOT */
45 RELOC_NUMBER (R_MIPS_PC16, 10)
46 RELOC_NUMBER (R_MIPS_CALL16, 11) /* In Elf 64: alias R_MIPS_CALL */
47 RELOC_NUMBER (R_MIPS_GPREL32, 12)
48 /* The remaining relocs are defined on Irix, although they are not
49 in the MIPS ELF ABI. */
50 RELOC_NUMBER (R_MIPS_UNUSED1, 13)
51 RELOC_NUMBER (R_MIPS_UNUSED2, 14)
52 RELOC_NUMBER (R_MIPS_UNUSED3, 15)
53 RELOC_NUMBER (R_MIPS_SHIFT5, 16)
54 RELOC_NUMBER (R_MIPS_SHIFT6, 17)
55 RELOC_NUMBER (R_MIPS_64, 18)
56 RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
57 RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
58 RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
59 RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
60 RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
61 RELOC_NUMBER (R_MIPS_SUB, 24)
62 RELOC_NUMBER (R_MIPS_INSERT_A, 25)
63 RELOC_NUMBER (R_MIPS_INSERT_B, 26)
64 RELOC_NUMBER (R_MIPS_DELETE, 27)
65 RELOC_NUMBER (R_MIPS_HIGHER, 28)
66 RELOC_NUMBER (R_MIPS_HIGHEST, 29)
67 RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
68 RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
69 RELOC_NUMBER (R_MIPS_SCN_DISP, 32)
70 RELOC_NUMBER (R_MIPS_REL16, 33)
71 RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34)
72 RELOC_NUMBER (R_MIPS_PJUMP, 35)
73 RELOC_NUMBER (R_MIPS_RELGOT, 36)
74 RELOC_NUMBER (R_MIPS_JALR, 37)
75 RELOC_NUMBER (R_MIPS_max, 38)
76 /* These relocs are used for the mips16. */
77 RELOC_NUMBER (R_MIPS16_26, 100)
78 RELOC_NUMBER (R_MIPS16_GPREL, 101)
79 /* These are GNU extensions to handle embedded-pic. */
80 RELOC_NUMBER (R_MIPS_PC32, 248)
81 RELOC_NUMBER (R_MIPS_PC64, 249)
82 RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250)
83 RELOC_NUMBER (R_MIPS_GNU_REL_LO16, 251)
84 RELOC_NUMBER (R_MIPS_GNU_REL_HI16, 252)
85 /* These are GNU extensions to enable C++ vtable garbage collection. */
86 RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
87 RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
88END_RELOC_NUMBERS (R_MIPS_maxext)
89
90/* Processor specific flags for the ELF header e_flags field. */
91
92/* At least one .noreorder directive appears in the source. */
93#define EF_MIPS_NOREORDER 0x00000001
94
95/* File contains position independent code. */
96#define EF_MIPS_PIC 0x00000002
97
98/* Code in file uses the standard calling sequence for calling
99 position independent code. */
100#define EF_MIPS_CPIC 0x00000004
101
102/* ??? Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a. */
103#define EF_MIPS_XGOT 0x00000008
104
105/* Code in file uses UCODE (obsolete) */
106#define EF_MIPS_UCODE 0x00000010
107
108/* Code in file uses new ABI (-n32 on Irix 6). */
109#define EF_MIPS_ABI2 0x00000020
110
111/* Process the .MIPS.options section first by ld */
112#define EF_MIPS_OPTIONS_FIRST 0x00000080
113
114/* Architectural Extensions used by this file */
115#define EF_MIPS_ARCH_ASE 0x0f000000
116
117/* Use MDMX multimedia extensions */
118#define EF_MIPS_ARCH_ASE_MDMX 0x08000000
119
120/* Use MIPS-16 ISA extensions */
121#define EF_MIPS_ARCH_ASE_M16 0x04000000
122
123/* Indicates code compiled for a 64-bit machine in 32-bit mode.
124 (regs are 32-bits wide.) */
125#define EF_MIPS_32BITMODE 0x00000100
126
127/* Four bit MIPS architecture field. */
128#define EF_MIPS_ARCH 0xf0000000
129
130/* -mips1 code. */
131#define E_MIPS_ARCH_1 0x00000000
132
133/* -mips2 code. */
134#define E_MIPS_ARCH_2 0x10000000
135
136/* -mips3 code. */
137#define E_MIPS_ARCH_3 0x20000000
138
139/* -mips4 code. */
140#define E_MIPS_ARCH_4 0x30000000
141
142/* -mips5 code. */
143#define E_MIPS_ARCH_5 0x40000000
144
145/* -mips32 code. */
146#define E_MIPS_ARCH_32 0x50000000
147
148/* -mips64 code. */
149#define E_MIPS_ARCH_64 0x60000000
150
151/* -mips32r2 code. */
152#define E_MIPS_ARCH_32R2 0x70000000
153
154/* The ABI of the file. Also see EF_MIPS_ABI2 above. */
155#define EF_MIPS_ABI 0x0000F000
156
157/* The original o32 abi. */
158#define E_MIPS_ABI_O32 0x00001000
159
160/* O32 extended to work on 64 bit architectures */
161#define E_MIPS_ABI_O64 0x00002000
162
163/* EABI in 32 bit mode */
164#define E_MIPS_ABI_EABI32 0x00003000
165
166/* EABI in 64 bit mode */
167#define E_MIPS_ABI_EABI64 0x00004000
168
169
170/* Machine variant if we know it. This field was invented at Cygnus,
171 but it is hoped that other vendors will adopt it. If some standard
172 is developed, this code should be changed to follow it. */
173
174#define EF_MIPS_MACH 0x00FF0000
175
176/* Cygnus is choosing values between 80 and 9F;
177 00 - 7F should be left for a future standard;
178 the rest are open. */
179
180#define E_MIPS_MACH_3900 0x00810000
181#define E_MIPS_MACH_4010 0x00820000
182#define E_MIPS_MACH_4100 0x00830000
183#define E_MIPS_MACH_4650 0x00850000
184#define E_MIPS_MACH_4120 0x00870000
185#define E_MIPS_MACH_4111 0x00880000
186#define E_MIPS_MACH_SB1 0x008a0000
187#define E_MIPS_MACH_5400 0x00910000
188#define E_MIPS_MACH_5500 0x00980000
189
190
191/* Processor specific section indices. These sections do not actually
192 exist. Symbols with a st_shndx field corresponding to one of these
193 values have a special meaning. */
194
195/* Defined and allocated common symbol. Value is virtual address. If
196 relocated, alignment must be preserved. */
197#define SHN_MIPS_ACOMMON 0xff00
198
199/* Defined and allocated text symbol. Value is virtual address.
200 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
201#define SHN_MIPS_TEXT 0xff01
202
203/* Defined and allocated data symbol. Value is virtual address.
204 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
205#define SHN_MIPS_DATA 0xff02
206
207/* Small common symbol. */
208#define SHN_MIPS_SCOMMON 0xff03
209
210/* Small undefined symbol. */
211#define SHN_MIPS_SUNDEFINED 0xff04
212
213
214/* Processor specific section types. */
215
216/* Section contains the set of dynamic shared objects used when
217 statically linking. */
218#define SHT_MIPS_LIBLIST 0x70000000
219
220/* I'm not sure what this is, but it's used on Irix 5. */
221#define SHT_MIPS_MSYM 0x70000001
222
223/* Section contains list of symbols whose definitions conflict with
224 symbols defined in shared objects. */
225#define SHT_MIPS_CONFLICT 0x70000002
226
227/* Section contains the global pointer table. */
228#define SHT_MIPS_GPTAB 0x70000003
229
230/* Section contains microcode information. The exact format is
231 unspecified. */
232#define SHT_MIPS_UCODE 0x70000004
233
234/* Section contains some sort of debugging information. The exact
235 format is unspecified. It's probably ECOFF symbols. */
236#define SHT_MIPS_DEBUG 0x70000005
237
238/* Section contains register usage information. */
239#define SHT_MIPS_REGINFO 0x70000006
240
241/* ??? */
242#define SHT_MIPS_PACKAGE 0x70000007
243
244/* ??? */
245#define SHT_MIPS_PACKSYM 0x70000008
246
247/* ??? */
248#define SHT_MIPS_RELD 0x70000009
249
250/* Section contains interface information. */
251#define SHT_MIPS_IFACE 0x7000000b
252
253/* Section contains description of contents of another section. */
254#define SHT_MIPS_CONTENT 0x7000000c
255
256/* Section contains miscellaneous options. */
257#define SHT_MIPS_OPTIONS 0x7000000d
258
259/* ??? */
260#define SHT_MIPS_SHDR 0x70000010
261
262/* ??? */
263#define SHT_MIPS_FDESC 0x70000011
264
265/* ??? */
266#define SHT_MIPS_EXTSYM 0x70000012
267
268/* ??? */
269#define SHT_MIPS_DENSE 0x70000013
270
271/* ??? */
272#define SHT_MIPS_PDESC 0x70000014
273
274/* ??? */
275#define SHT_MIPS_LOCSYM 0x70000015
276
277/* ??? */
278#define SHT_MIPS_AUXSYM 0x70000016
279
280/* ??? */
281#define SHT_MIPS_OPTSYM 0x70000017
282
283/* ??? */
284#define SHT_MIPS_LOCSTR 0x70000018
285
286/* ??? */
287#define SHT_MIPS_LINE 0x70000019
288
289/* ??? */
290#define SHT_MIPS_RFDESC 0x7000001a
291
292/* Delta C++: symbol table */
293#define SHT_MIPS_DELTASYM 0x7000001b
294
295/* Delta C++: instance table */
296#define SHT_MIPS_DELTAINST 0x7000001c
297
298/* Delta C++: class table */
299#define SHT_MIPS_DELTACLASS 0x7000001d
300
301/* DWARF debugging section. */
302#define SHT_MIPS_DWARF 0x7000001e
303
304/* Delta C++: declarations */
305#define SHT_MIPS_DELTADECL 0x7000001f
306
307/* List of libraries the binary depends on. Includes a time stamp, version
308 number. */
309#define SHT_MIPS_SYMBOL_LIB 0x70000020
310
311/* Events section. */
312#define SHT_MIPS_EVENTS 0x70000021
313
314/* ??? */
315#define SHT_MIPS_TRANSLATE 0x70000022
316
317/* Special pixie sections */
318#define SHT_MIPS_PIXIE 0x70000023
319
320/* Address translation table (for debug info) */
321#define SHT_MIPS_XLATE 0x70000024
322
323/* SGI internal address translation table (for debug info) */
324#define SHT_MIPS_XLATE_DEBUG 0x70000025
325
326/* Intermediate code */
327#define SHT_MIPS_WHIRL 0x70000026
328
329/* C++ exception handling region info */
330#define SHT_MIPS_EH_REGION 0x70000027
331
332/* Obsolete address translation table (for debug info) */
333#define SHT_MIPS_XLATE_OLD 0x70000028
334
335/* Runtime procedure descriptor table exception information (ucode) ??? */
336#define SHT_MIPS_PDR_EXCEPTION 0x70000029
337
338
339/* A section of type SHT_MIPS_LIBLIST contains an array of the
340 following structure. The sh_link field is the section index of the
341 string table. The sh_info field is the number of entries in the
342 section. */
343typedef struct
344{
345 /* String table index for name of shared object. */
346 unsigned long l_name;
347 /* Time stamp. */
348 unsigned long l_time_stamp;
349 /* Checksum of symbol names and common sizes. */
350 unsigned long l_checksum;
351 /* String table index for version. */
352 unsigned long l_version;
353 /* Flags. */
354 unsigned long l_flags;
355} Elf32_Lib;
356
357/* The external version of Elf32_Lib. */
358typedef struct
359{
360 unsigned char l_name[4];
361 unsigned char l_time_stamp[4];
362 unsigned char l_checksum[4];
363 unsigned char l_version[4];
364 unsigned char l_flags[4];
365} Elf32_External_Lib;
366
367/* The l_flags field of an Elf32_Lib structure may contain the
368 following flags. */
369
370/* Require an exact match at runtime. */
371#define LL_EXACT_MATCH 0x00000001
372
373/* Ignore version incompatibilities at runtime. */
374#define LL_IGNORE_INT_VER 0x00000002
375
376/* Require matching minor version number. */
377#define LL_REQUIRE_MINOR 0x00000004
378
379/* ??? */
380#define LL_EXPORTS 0x00000008
381
382/* Delay loading of this library until really needed. */
383#define LL_DELAY_LOAD 0x00000010
384
385/* ??? Delta C++ stuff ??? */
386#define LL_DELTA 0x00000020
387
388
389/* A section of type SHT_MIPS_CONFLICT is an array of indices into the
390 .dynsym section. Each element has the following type. */
391typedef unsigned long Elf32_Conflict;
392typedef unsigned char Elf32_External_Conflict[4];
393
394typedef unsigned long Elf64_Conflict;
395typedef unsigned char Elf64_External_Conflict[8];
396
397/* A section of type SHT_MIPS_GPTAB contains information about how
398 much GP space would be required for different -G arguments. This
399 information is only used so that the linker can provide informative
400 suggestions as to the best -G value to use. The sh_info field is
401 the index of the section for which this information applies. The
402 contents of the section are an array of the following union. The
403 first element uses the gt_header field. The remaining elements use
404 the gt_entry field. */
405typedef union
406{
407 struct
408 {
409 /* -G value actually used for this object file. */
410 unsigned long gt_current_g_value;
411 /* Unused. */
412 unsigned long gt_unused;
413 } gt_header;
414 struct
415 {
416 /* If this -G argument has been used... */
417 unsigned long gt_g_value;
418 /* ...this many GP section bytes would be required. */
419 unsigned long gt_bytes;
420 } gt_entry;
421} Elf32_gptab;
422
423/* The external version of Elf32_gptab. */
424
425typedef union
426{
427 struct
428 {
429 unsigned char gt_current_g_value[4];
430 unsigned char gt_unused[4];
431 } gt_header;
432 struct
433 {
434 unsigned char gt_g_value[4];
435 unsigned char gt_bytes[4];
436 } gt_entry;
437} Elf32_External_gptab;
438
439/* A section of type SHT_MIPS_REGINFO contains the following
440 structure. */
441typedef struct
442{
443 /* Mask of general purpose registers used. */
444 unsigned long ri_gprmask;
445 /* Mask of co-processor registers used. */
446 unsigned long ri_cprmask[4];
447 /* GP register value for this object file. */
448 long ri_gp_value;
449} Elf32_RegInfo;
450
451/* The external version of the Elf_RegInfo structure. */
452typedef struct
453{
454 unsigned char ri_gprmask[4];
455 unsigned char ri_cprmask[4][4];
456 unsigned char ri_gp_value[4];
457} Elf32_External_RegInfo;
458
459/* MIPS ELF .reginfo swapping routines. */
460extern void bfd_mips_elf32_swap_reginfo_in
461 PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *));
462extern void bfd_mips_elf32_swap_reginfo_out
463 PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *));
464
465
466/* Processor specific section flags. */
467
468/* This section must be in the global data area. */
469#define SHF_MIPS_GPREL 0x10000000
470
471/* This section should be merged. */
472#define SHF_MIPS_MERGE 0x20000000
473
474/* This section contains address data of size implied by section
475 element size. */
476#define SHF_MIPS_ADDR 0x40000000
477
478/* This section contains string data. */
479#define SHF_MIPS_STRING 0x80000000
480
481/* This section may not be stripped. */
482#define SHF_MIPS_NOSTRIP 0x08000000
483
484/* This section is local to threads. */
485#define SHF_MIPS_LOCAL 0x04000000
486
487/* Linker should generate implicit weak names for this section. */
488#define SHF_MIPS_NAMES 0x02000000
489
490/* Section contais text/data which may be replicated in other sections.
491 Linker should retain only one copy. */
492#define SHF_MIPS_NODUPES 0x01000000
493
494
495/* Processor specific program header types. */
496
497/* Register usage information. Identifies one .reginfo section. */
498#define PT_MIPS_REGINFO 0x70000000
499
500/* Runtime procedure table. */
501#define PT_MIPS_RTPROC 0x70000001
502
503/* .MIPS.options section. */
504#define PT_MIPS_OPTIONS 0x70000002
505
506
507/* Processor specific dynamic array tags. */
508
509/* 32 bit version number for runtime linker interface. */
510#define DT_MIPS_RLD_VERSION 0x70000001
511
512/* Time stamp. */
513#define DT_MIPS_TIME_STAMP 0x70000002
514
515/* Checksum of external strings and common sizes. */
516#define DT_MIPS_ICHECKSUM 0x70000003
517
518/* Index of version string in string table. */
519#define DT_MIPS_IVERSION 0x70000004
520
521/* 32 bits of flags. */
522#define DT_MIPS_FLAGS 0x70000005
523
524/* Base address of the segment. */
525#define DT_MIPS_BASE_ADDRESS 0x70000006
526
527/* ??? */
528#define DT_MIPS_MSYM 0x70000007
529
530/* Address of .conflict section. */
531#define DT_MIPS_CONFLICT 0x70000008
532
533/* Address of .liblist section. */
534#define DT_MIPS_LIBLIST 0x70000009
535
536/* Number of local global offset table entries. */
537#define DT_MIPS_LOCAL_GOTNO 0x7000000a
538
539/* Number of entries in the .conflict section. */
540#define DT_MIPS_CONFLICTNO 0x7000000b
541
542/* Number of entries in the .liblist section. */
543#define DT_MIPS_LIBLISTNO 0x70000010
544
545/* Number of entries in the .dynsym section. */
546#define DT_MIPS_SYMTABNO 0x70000011
547
548/* Index of first external dynamic symbol not referenced locally. */
549#define DT_MIPS_UNREFEXTNO 0x70000012
550
551/* Index of first dynamic symbol in global offset table. */
552#define DT_MIPS_GOTSYM 0x70000013
553
554/* Number of page table entries in global offset table. */
555#define DT_MIPS_HIPAGENO 0x70000014
556
557/* Address of run time loader map, used for debugging. */
558#define DT_MIPS_RLD_MAP 0x70000016
559
560/* Delta C++ class definition. */
561#define DT_MIPS_DELTA_CLASS 0x70000017
562
563/* Number of entries in DT_MIPS_DELTA_CLASS. */
564#define DT_MIPS_DELTA_CLASS_NO 0x70000018
565
566/* Delta C++ class instances. */
567#define DT_MIPS_DELTA_INSTANCE 0x70000019
568
569/* Number of entries in DT_MIPS_DELTA_INSTANCE. */
570#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a
571
572/* Delta relocations. */
573#define DT_MIPS_DELTA_RELOC 0x7000001b
574
575/* Number of entries in DT_MIPS_DELTA_RELOC. */
576#define DT_MIPS_DELTA_RELOC_NO 0x7000001c
577
578/* Delta symbols that Delta relocations refer to. */
579#define DT_MIPS_DELTA_SYM 0x7000001d
580
581/* Number of entries in DT_MIPS_DELTA_SYM. */
582#define DT_MIPS_DELTA_SYM_NO 0x7000001e
583
584/* Delta symbols that hold class declarations. */
585#define DT_MIPS_DELTA_CLASSSYM 0x70000020
586
587/* Number of entries in DT_MIPS_DELTA_CLASSSYM. */
588#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021
589
590/* Flags indicating information about C++ flavor. */
591#define DT_MIPS_CXX_FLAGS 0x70000022
592
593/* Pixie information (???). */
594#define DT_MIPS_PIXIE_INIT 0x70000023
595
596/* Address of .MIPS.symlib */
597#define DT_MIPS_SYMBOL_LIB 0x70000024
598
599/* The GOT index of the first PTE for a segment */
600#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025
601
602/* The GOT index of the first PTE for a local symbol */
603#define DT_MIPS_LOCAL_GOTIDX 0x70000026
604
605/* The GOT index of the first PTE for a hidden symbol */
606#define DT_MIPS_HIDDEN_GOTIDX 0x70000027
607
608/* The GOT index of the first PTE for a protected symbol */
609#define DT_MIPS_PROTECTED_GOTIDX 0x70000028
610
611/* Address of `.MIPS.options'. */
612#define DT_MIPS_OPTIONS 0x70000029
613
614/* Address of `.interface'. */
615#define DT_MIPS_INTERFACE 0x7000002a
616
617/* ??? */
618#define DT_MIPS_DYNSTR_ALIGN 0x7000002b
619
620/* Size of the .interface section. */
621#define DT_MIPS_INTERFACE_SIZE 0x7000002c
622
623/* Size of rld_text_resolve function stored in the GOT. */
624#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d
625
626/* Default suffix of DSO to be added by rld on dlopen() calls. */
627#define DT_MIPS_PERF_SUFFIX 0x7000002e
628
629/* Size of compact relocation section (O32). */
630#define DT_MIPS_COMPACT_SIZE 0x7000002f
631
632/* GP value for auxiliary GOTs. */
633#define DT_MIPS_GP_VALUE 0x70000030
634
635/* Address of auxiliary .dynamic. */
636#define DT_MIPS_AUX_DYNAMIC 0x70000031
637
638
639/* Flags which may appear in a DT_MIPS_FLAGS entry. */
640
641/* No flags. */
642#define RHF_NONE 0x00000000
643
644/* Uses shortcut pointers. */
645#define RHF_QUICKSTART 0x00000001
646
647/* Hash size is not a power of two. */
648#define RHF_NOTPOT 0x00000002
649
650/* Ignore LD_LIBRARY_PATH. */
651#define RHS_NO_LIBRARY_REPLACEMENT 0x00000004
652
653/* DSO address may not be relocated. */
654#define RHF_NO_MOVE 0x00000008
655
656/* SGI specific features. */
657#define RHF_SGI_ONLY 0x00000010
658
659/* Guarantee that .init will finish executing before any non-init
660 code in DSO is called. */
661#define RHF_GUARANTEE_INIT 0x00000020
662
663/* Contains Delta C++ code. */
664#define RHF_DELTA_C_PLUS_PLUS 0x00000040
665
666/* Guarantee that .init will start executing before any non-init
667 code in DSO is called. */
668#define RHF_GUARANTEE_START_INIT 0x00000080
669
670/* Generated by pixie. */
671#define RHF_PIXIE 0x00000100
672
673/* Delay-load DSO by default. */
674#define RHF_DEFAULT_DELAY_LOAD 0x00000200
675
676/* Object may be requickstarted */
677#define RHF_REQUICKSTART 0x00000400
678
679/* Object has been requickstarted */
680#define RHF_REQUICKSTARTED 0x00000800
681
682/* Generated by cord. */
683#define RHF_CORD 0x00001000
684
685/* Object contains no unresolved undef symbols. */
686#define RHF_NO_UNRES_UNDEF 0x00002000
687
688/* Symbol table is in a safe order. */
689#define RHF_RLD_ORDER_SAFE 0x00004000
690
691
692/* Special values for the st_other field in the symbol table. These
693 are used in an Irix 5 dynamic symbol table. */
694
695#define STO_DEFAULT STV_DEFAULT
696#define STO_INTERNAL STV_INTERNAL
697#define STO_HIDDEN STV_HIDDEN
698#define STO_PROTECTED STV_PROTECTED
699
700/* This value is used for a mips16 .text symbol. */
701#define STO_MIPS16 0xf0
702
703
704/* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each
705 relocation entry specifies up to three actual relocations, all at
706 the same address. The first relocation which required a symbol
707 uses the symbol in the r_sym field. The second relocation which
708 requires a symbol uses the symbol in the r_ssym field. If all
709 three relocations require a symbol, the third one uses a zero
710 value. */
711
712/* An entry in a 64 bit SHT_REL section. */
713
714typedef struct
715{
716 /* Address of relocation. */
717 unsigned char r_offset[8];
718 /* Symbol index. */
719 unsigned char r_sym[4];
720 /* Special symbol. */
721 unsigned char r_ssym[1];
722 /* Third relocation. */
723 unsigned char r_type3[1];
724 /* Second relocation. */
725 unsigned char r_type2[1];
726 /* First relocation. */
727 unsigned char r_type[1];
728} Elf64_Mips_External_Rel;
729
730typedef struct
731{
732 /* Address of relocation. */
733 bfd_vma r_offset;
734 /* Symbol index. */
735 unsigned long r_sym;
736 /* Special symbol. */
737 unsigned char r_ssym;
738 /* Third relocation. */
739 unsigned char r_type3;
740 /* Second relocation. */
741 unsigned char r_type2;
742 /* First relocation. */
743 unsigned char r_type;
744} Elf64_Mips_Internal_Rel;
745
746/* An entry in a 64 bit SHT_RELA section. */
747
748typedef struct
749{
750 /* Address of relocation. */
751 unsigned char r_offset[8];
752 /* Symbol index. */
753 unsigned char r_sym[4];
754 /* Special symbol. */
755 unsigned char r_ssym[1];
756 /* Third relocation. */
757 unsigned char r_type3[1];
758 /* Second relocation. */
759 unsigned char r_type2[1];
760 /* First relocation. */
761 unsigned char r_type[1];
762 /* Addend. */
763 unsigned char r_addend[8];
764} Elf64_Mips_External_Rela;
765
766typedef struct
767{
768 /* Address of relocation. */
769 bfd_vma r_offset;
770 /* Symbol index. */
771 unsigned long r_sym;
772 /* Special symbol. */
773 unsigned char r_ssym;
774 /* Third relocation. */
775 unsigned char r_type3;
776 /* Second relocation. */
777 unsigned char r_type2;
778 /* First relocation. */
779 unsigned char r_type;
780 /* Addend. */
781 bfd_signed_vma r_addend;
782} Elf64_Mips_Internal_Rela;
783
784/* MIPS ELF 64 relocation info access macros. */
785#define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff)
786#define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff)
787#define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff)
788#define ELF64_MIPS_R_TYPE(i) ((i) & 0xff)
789
790/* Values found in the r_ssym field of a relocation entry. */
791
792/* No relocation. */
793#define RSS_UNDEF 0
794
795/* Value of GP. */
796#define RSS_GP 1
797
798/* Value of GP in object being relocated. */
799#define RSS_GP0 2
800
801/* Address of location being relocated. */
802#define RSS_LOC 3
803
804
805/* A SHT_MIPS_OPTIONS section contains a series of options, each of
806 which starts with this header. */
807
808typedef struct
809{
810 /* Type of option. */
811 unsigned char kind[1];
812 /* Size of option descriptor, including header. */
813 unsigned char size[1];
814 /* Section index of affected section, or 0 for global option. */
815 unsigned char section[2];
816 /* Information specific to this kind of option. */
817 unsigned char info[4];
818} Elf_External_Options;
819
820typedef struct
821{
822 /* Type of option. */
823 unsigned char kind;
824 /* Size of option descriptor, including header. */
825 unsigned char size;
826 /* Section index of affected section, or 0 for global option. */
827 unsigned short section;
828 /* Information specific to this kind of option. */
829 unsigned long info;
830} Elf_Internal_Options;
831
832/* MIPS ELF option header swapping routines. */
833extern void bfd_mips_elf_swap_options_in
834 PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *));
835extern void bfd_mips_elf_swap_options_out
836 PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *));
837
838/* Values which may appear in the kind field of an Elf_Options
839 structure. */
840
841/* Undefined. */
842#define ODK_NULL 0
843
844/* Register usage and GP value. */
845#define ODK_REGINFO 1
846
847/* Exception processing information. */
848#define ODK_EXCEPTIONS 2
849
850/* Section padding information. */
851#define ODK_PAD 3
852
853/* Hardware workarounds performed. */
854#define ODK_HWPATCH 4
855
856/* Fill value used by the linker. */
857#define ODK_FILL 5
858
859/* Reserved space for desktop tools. */
860#define ODK_TAGS 6
861
862/* Hardware workarounds, AND bits when merging. */
863#define ODK_HWAND 7
864
865/* Hardware workarounds, OR bits when merging. */
866#define ODK_HWOR 8
867
868/* GP group to use for text/data sections. */
869#define ODK_GP_GROUP 9
870
871/* ID information. */
872#define ODK_IDENT 10
873
874/* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
875 structure. In the 64 bit ABI, it is the following structure. The
876 info field of the options header is not used. */
877
878typedef struct
879{
880 /* Mask of general purpose registers used. */
881 unsigned char ri_gprmask[4];
882 /* Padding. */
883 unsigned char ri_pad[4];
884 /* Mask of co-processor registers used. */
885 unsigned char ri_cprmask[4][4];
886 /* GP register value for this object file. */
887 unsigned char ri_gp_value[8];
888} Elf64_External_RegInfo;
889
890typedef struct
891{
892 /* Mask of general purpose registers used. */
893 unsigned long ri_gprmask;
894 /* Padding. */
895 unsigned long ri_pad;
896 /* Mask of co-processor registers used. */
897 unsigned long ri_cprmask[4];
898 /* GP register value for this object file. */
899 bfd_vma ri_gp_value;
900} Elf64_Internal_RegInfo;
901
902typedef struct
903{
904 /* The hash value computed from the name of the corresponding
905 dynamic symbol. */
906 unsigned char ms_hash_value[4];
907 /* Contains both the dynamic relocation index and the symbol flags
908 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
909 to access the individual values. The dynamic relocation index
910 identifies the first entry in the .rel.dyn section that
911 references the dynamic symbol corresponding to this msym entry.
912 If the index is 0, no dynamic relocations are associated with the
913 symbol. The symbol flags field is reserved for future use. */
914 unsigned char ms_info[4];
915} Elf32_External_Msym;
916
917typedef struct
918{
919 /* The hash value computed from the name of the corresponding
920 dynamic symbol. */
921 unsigned long ms_hash_value;
922 /* Contains both the dynamic relocation index and the symbol flags
923 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
924 to access the individual values. The dynamic relocation index
925 identifies the first entry in the .rel.dyn section that
926 references the dynamic symbol corresponding to this msym entry.
927 If the index is 0, no dynamic relocations are associated with the
928 symbol. The symbol flags field is reserved for future use. */
929 unsigned long ms_info;
930} Elf32_Internal_Msym;
931
932#define ELF32_MS_REL_INDEX(i) ((i) >> 8)
933#define ELF32_MS_FLAGS(i) (i) & 0xff)
934#define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff))
935
936/* MIPS ELF reginfo swapping routines. */
937extern void bfd_mips_elf64_swap_reginfo_in
938 PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *));
939extern void bfd_mips_elf64_swap_reginfo_out
940 PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *));
941
942/* Masks for the info work of an ODK_EXCEPTIONS descriptor. */
943#define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */
944#define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */
945#define OEX_PAGE0 0x10000 /* Page zero must be mapped. */
946#define OEX_SMM 0x20000 /* Force sequential memory mode. */
947#define OEX_FPDBUG 0x40000 /* Force precise floating-point
948 exceptions (debug mode). */
949#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */
950
951/* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */
952#define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */
953#define OEX_FPU_DIV0 0x08 /* Division by zero exception. */
954#define OEX_FPU_OFLO 0x04 /* Overflow exception. */
955#define OEX_FPU_UFLO 0x02 /* Underflow exception. */
956#define OEX_FPU_INEX 0x01 /* Inexact exception. */
957
958/* Masks for the info word of an ODK_PAD descriptor. */
959#define OPAD_PREFIX 0x01
960#define OPAD_POSTFIX 0x02
961#define OPAD_SYMBOL 0x04
962
963/* Masks for the info word of an ODK_HWPATCH descriptor. */
964#define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */
965#define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */
966#define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */
967#define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug
968 (clean == 1). */
969#define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned
970 load patch. */
971
972/* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */
973#define OGP_GROUP 0x0000ffff /* GP group number. */
974#define OGP_SELF 0xffff0000 /* Self-contained GP groups. */
975
976/* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */
977#define OHWA0_R4KEOP_CHECKED 0x00000001
978#define OHWA0_R4KEOP_CLEAN 0x00000002
979
980
981
982#endif /* _ELF_MIPS_H */
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