1 /* MIPS ELF support for BFD.
2 Copyright (C) 1993, 1994, 1995, 1996, 1998 Free Software Foundation, Inc.
4 By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
5 information in the System V Application Binary Interface, MIPS
8 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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. */
24 /* This file holds definitions specific to the MIPS ELF ABI. Note
25 that most of this is not actually implemented by BFD. */
30 #include "elf/reloc-macros.h"
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 /* start-sanitize-r5900 */
79 /* This is used by a mips co-processor instruction. */
80 RELOC_NUMBER (R_MIPS15_S3
, 119)
81 /* end-sanitize-r5900 */
82 /* start-sanitize-sky */
83 /* These relocs are for the dvp. */
84 RELOC_NUMBER (R_MIPS_DVP_11_PCREL
, 120)
85 RELOC_NUMBER (R_MIPS_DVP_27_S4
, 121)
86 RELOC_NUMBER (R_MIPS_DVP_11_S4
, 122)
87 RELOC_NUMBER (R_MIPS_DVP_U15_S3
, 123)
88 /* end-sanitize-sky */
89 /* These are GNU extensions to enable C++ vtable garbage collection. */
90 RELOC_NUMBER (R_MIPS_GNU_VTINHERIT
, 253)
91 RELOC_NUMBER (R_MIPS_GNU_VTENTRY
, 254)
94 /* Processor specific flags for the ELF header e_flags field. */
96 /* At least one .noreorder directive appears in the source. */
97 #define EF_MIPS_NOREORDER 0x00000001
99 /* File contains position independent code. */
100 #define EF_MIPS_PIC 0x00000002
102 /* Code in file uses the standard calling sequence for calling
103 position independent code. */
104 #define EF_MIPS_CPIC 0x00000004
106 /* Code in file uses new ABI (-n32 on Irix 6). */
107 #define EF_MIPS_ABI2 0x00000020
109 /* Four bit MIPS architecture field. */
110 #define EF_MIPS_ARCH 0xf0000000
113 #define E_MIPS_ARCH_1 0x00000000
116 #define E_MIPS_ARCH_2 0x10000000
119 #define E_MIPS_ARCH_3 0x20000000
122 #define E_MIPS_ARCH_4 0x30000000
124 /* The ABI of the file. Also see EF_MIPS_ABI2 above. */
125 #define EF_MIPS_ABI 0x0000F000
127 /* The original o32 abi. */
128 #define E_MIPS_ABI_O32 0x00001000
130 /* O32 extended to work on 64 bit architectures */
131 #define E_MIPS_ABI_O64 0x00002000
133 /* EABI in 32 bit mode */
134 #define E_MIPS_ABI_EABI32 0x00003000
136 /* EABI in 64 bit mode */
137 #define E_MIPS_ABI_EABI64 0x00004000
140 /* Machine variant if we know it. This field was invented at Cygnus,
141 but it is hoped that other vendors will adopt it. If some standard
142 is developed, this code should be changed to follow it. */
144 #define EF_MIPS_MACH 0x00FF0000
146 /* Cygnus is choosing values between 80 and 9F;
147 00 - 7F should be left for a future standard;
148 the rest are open. */
150 #define E_MIPS_MACH_3900 0x00810000
152 #define E_MIPS_MACH_4010 0x00820000
153 #define E_MIPS_MACH_4100 0x00830000
154 /* start-sanitize-vr4320 */
155 #define E_MIPS_MACH_4320 0x00840000
156 /* end-sanitize-vr4320 */
157 #define E_MIPS_MACH_4650 0x00850000
158 /* start-sanitize-tx49 */
159 #define E_MIPS_MACH_4900 0x00860000
160 /* end-sanitize-tx49 */
161 /* start-sanitize-vr4xxx */
162 #define E_MIPS_MACH_4121 0x00870000
163 /* end-sanitize-vr4xxx */
165 /* start-sanitize-cygnus */
166 #define E_MIPS_MACH_5400 0x00910000
167 /* end-sanitize-cygnus */
168 /* start-sanitize-r5900 */
169 #define E_MIPS_MACH_5900 0x00920000
170 /* end-sanitize-r5900 */
172 /* Processor specific section indices. These sections do not actually
173 exist. Symbols with a st_shndx field corresponding to one of these
174 values have a special meaning. */
176 /* Defined and allocated common symbol. Value is virtual address. If
177 relocated, alignment must be preserved. */
178 #define SHN_MIPS_ACOMMON 0xff00
180 /* Defined and allocated text symbol. Value is virtual address.
181 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
182 #define SHN_MIPS_TEXT 0xff01
184 /* Defined and allocated data symbol. Value is virtual address.
185 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
186 #define SHN_MIPS_DATA 0xff02
188 /* Small common symbol. */
189 #define SHN_MIPS_SCOMMON 0xff03
191 /* Small undefined symbol. */
192 #define SHN_MIPS_SUNDEFINED 0xff04
194 /* Processor specific section types. */
196 /* Section contains the set of dynamic shared objects used when
197 statically linking. */
198 #define SHT_MIPS_LIBLIST 0x70000000
200 /* I'm not sure what this is, but it's used on Irix 5. */
201 #define SHT_MIPS_MSYM 0x70000001
203 /* Section contains list of symbols whose definitions conflict with
204 symbols defined in shared objects. */
205 #define SHT_MIPS_CONFLICT 0x70000002
207 /* Section contains the global pointer table. */
208 #define SHT_MIPS_GPTAB 0x70000003
210 /* Section contains microcode information. The exact format is
212 #define SHT_MIPS_UCODE 0x70000004
214 /* Section contains some sort of debugging information. The exact
215 format is unspecified. It's probably ECOFF symbols. */
216 #define SHT_MIPS_DEBUG 0x70000005
218 /* Section contains register usage information. */
219 #define SHT_MIPS_REGINFO 0x70000006
222 #define SHT_MIPS_PACKAGE 0x70000007
225 #define SHT_MIPS_PACKSYM 0x70000008
228 #define SHT_MIPS_RELD 0x70000009
230 /* Section contains interface information. */
231 #define SHT_MIPS_IFACE 0x7000000b
233 /* Section contains description of contents of another section. */
234 #define SHT_MIPS_CONTENT 0x7000000c
236 /* Section contains miscellaneous options. */
237 #define SHT_MIPS_OPTIONS 0x7000000d
240 #define SHT_MIPS_SHDR 0x70000010
243 #define SHT_MIPS_FDESC 0x70000011
246 #define SHT_MIPS_EXTSYM 0x70000012
249 #define SHT_MIPS_DENSE 0x70000013
252 #define SHT_MIPS_PDESC 0x70000014
255 #define SHT_MIPS_LOCSYM 0x70000015
258 #define SHT_MIPS_AUXSYM 0x70000016
261 #define SHT_MIPS_OPTSYM 0x70000017
264 #define SHT_MIPS_LOCSTR 0x70000018
267 #define SHT_MIPS_LINE 0x70000019
270 #define SHT_MIPS_RFDESC 0x7000001a
273 #define SHT_MIPS_DELTASYM 0x7000001b
276 #define SHT_MIPS_DELTAINST 0x7000001c
279 #define SHT_MIPS_DELTACLASS 0x7000001d
281 /* DWARF debugging section. */
282 #define SHT_MIPS_DWARF 0x7000001e
285 #define SHT_MIPS_DELTADECL 0x7000001f
287 /* List of libraries the binary depends on. Includes a time stamp, version
289 #define SHT_MIPS_SYMBOL_LIB 0x70000020
291 /* Events section. */
292 #define SHT_MIPS_EVENTS 0x70000021
295 #define SHT_MIPS_TRANSLATE 0x70000022
298 #define SHT_MIPS_PIXIE 0x70000023
301 #define SHT_MIPS_XLATE 0x70000024
304 #define SHT_MIPS_XLATE_DEBUG 0x70000025
307 #define SHT_MIPS_WHIRL 0x70000026
310 #define SHT_MIPS_EH_REGION 0x70000027
313 #define SHT_MIPS_XLATE_OLD 0x70000028
316 #define SHT_MIPS_PDR_EXCEPTION 0x70000029
318 /* start-sanitize-sky */
319 /* The VU overlay table. */
320 #define SHT_DVP_OVERLAY_TABLE 0x7ffff420
321 #define SHNAME_DVP_OVERLAY_TABLE ".DVP.ovlytab"
322 #define SHNAME_DVP_OVERLAY_STRTAB ".DVP.ovlystrtab"
324 #define SHT_DVP_OVERLAY 0x7ffff421
325 /* Prefix of VU overlay sections. */
326 #define SHNAME_DVP_OVERLAY_PREFIX ".DVP.overlay."
327 /* end-sanitize-sky */
329 /* A section of type SHT_MIPS_LIBLIST contains an array of the
330 following structure. The sh_link field is the section index of the
331 string table. The sh_info field is the number of entries in the
335 /* String table index for name of shared object. */
336 unsigned long l_name
;
338 unsigned long l_time_stamp
;
339 /* Checksum of symbol names and common sizes. */
340 unsigned long l_checksum
;
341 /* String table index for version. */
342 unsigned long l_version
;
344 unsigned long l_flags
;
347 /* The external version of Elf32_Lib. */
350 unsigned char l_name
[4];
351 unsigned char l_time_stamp
[4];
352 unsigned char l_checksum
[4];
353 unsigned char l_version
[4];
354 unsigned char l_flags
[4];
355 } Elf32_External_Lib
;
357 /* The l_flags field of an Elf32_Lib structure may contain the
360 /* Require an exact match at runtime. */
361 #define LL_EXACT_MATCH 0x00000001
363 /* Ignore version incompatibilities at runtime. */
364 #define LL_IGNORE_INT_VER 0x00000002
366 /* Require matching minor version number. */
367 #define LL_REQUIRE_MINOR 0x00000004
370 #define LL_EXPORTS 0x00000008
372 /* Delay loading of this library until really needed. */
373 #define LL_DELAY_LOAD 0x00000010
375 /* ??? Delta C++ stuff ??? */
376 #define LL_DELTA 0x00000020
379 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the
380 .dynsym section. Each element has the following type. */
381 typedef unsigned long Elf32_Conflict
;
382 typedef unsigned char Elf32_External_Conflict
[4];
384 typedef unsigned long Elf64_Conflict
;
385 typedef unsigned char Elf64_External_Conflict
[8];
387 /* A section of type SHT_MIPS_GPTAB contains information about how
388 much GP space would be required for different -G arguments. This
389 information is only used so that the linker can provide informative
390 suggestions as to the best -G value to use. The sh_info field is
391 the index of the section for which this information applies. The
392 contents of the section are an array of the following union. The
393 first element uses the gt_header field. The remaining elements use
394 the gt_entry field. */
399 /* -G value actually used for this object file. */
400 unsigned long gt_current_g_value
;
402 unsigned long gt_unused
;
406 /* If this -G argument has been used... */
407 unsigned long gt_g_value
;
408 /* ...this many GP section bytes would be required. */
409 unsigned long gt_bytes
;
413 /* The external version of Elf32_gptab. */
419 unsigned char gt_current_g_value
[4];
420 unsigned char gt_unused
[4];
424 unsigned char gt_g_value
[4];
425 unsigned char gt_bytes
[4];
427 } Elf32_External_gptab
;
429 /* A section of type SHT_MIPS_REGINFO contains the following
433 /* Mask of general purpose registers used. */
434 unsigned long ri_gprmask
;
435 /* Mask of co-processor registers used. */
436 unsigned long ri_cprmask
[4];
437 /* GP register value for this object file. */
441 /* The external version of the Elf_RegInfo structure. */
444 unsigned char ri_gprmask
[4];
445 unsigned char ri_cprmask
[4][4];
446 unsigned char ri_gp_value
[4];
447 } Elf32_External_RegInfo
;
449 /* MIPS ELF .reginfo swapping routines. */
450 extern void bfd_mips_elf32_swap_reginfo_in
451 PARAMS ((bfd
*, const Elf32_External_RegInfo
*, Elf32_RegInfo
*));
452 extern void bfd_mips_elf32_swap_reginfo_out
453 PARAMS ((bfd
*, const Elf32_RegInfo
*, Elf32_External_RegInfo
*));
455 /* Processor specific section flags. */
457 /* This section must be in the global data area. */
458 #define SHF_MIPS_GPREL 0x10000000
460 /* This section should be merged. */
461 #define SHF_MIPS_MERGE 0x20000000
463 /* This section contains 32 bit addresses. */
464 #define SHF_MIPS_ADDR32 0x40000000
466 /* This section contains 64 bit addresses. */
467 #define SHF_MIPS_ADDR64 0x80000000
469 /* This section may not be stripped. */
470 #define SHF_MIPS_NOSTRIP 0x08000000
472 /* This section is local to threads. */
473 #define SHF_MIPS_LOCAL 0x04000000
475 /* Linker should generate implicit weak names for this section. */
476 #define SHF_MIPS_NAMES 0x02000000
478 /* Processor specific program header types. */
480 /* Register usage information. Identifies one .reginfo section. */
481 #define PT_MIPS_REGINFO 0x70000000
483 /* Runtime procedure table. */
484 #define PT_MIPS_RTPROC 0x70000001
486 /* Options (for what ???). */
487 #define PT_MIPS_OPTIONS 0x70000002
489 /* Processor specific dynamic array tags. */
491 /* 32 bit version number for runtime linker interface. */
492 #define DT_MIPS_RLD_VERSION 0x70000001
495 #define DT_MIPS_TIME_STAMP 0x70000002
497 /* Checksum of external strings and common sizes. */
498 #define DT_MIPS_ICHECKSUM 0x70000003
500 /* Index of version string in string table. */
501 #define DT_MIPS_IVERSION 0x70000004
503 /* 32 bits of flags. */
504 #define DT_MIPS_FLAGS 0x70000005
506 /* Base address of the segment. */
507 #define DT_MIPS_BASE_ADDRESS 0x70000006
510 #define DT_MIPS_MSYM 0x70000007
512 /* Address of .conflict section. */
513 #define DT_MIPS_CONFLICT 0x70000008
515 /* Address of .liblist section. */
516 #define DT_MIPS_LIBLIST 0x70000009
518 /* Number of local global offset table entries. */
519 #define DT_MIPS_LOCAL_GOTNO 0x7000000a
521 /* Number of entries in the .conflict section. */
522 #define DT_MIPS_CONFLICTNO 0x7000000b
524 /* Number of entries in the .liblist section. */
525 #define DT_MIPS_LIBLISTNO 0x70000010
527 /* Number of entries in the .dynsym section. */
528 #define DT_MIPS_SYMTABNO 0x70000011
530 /* Index of first external dynamic symbol not referenced locally. */
531 #define DT_MIPS_UNREFEXTNO 0x70000012
533 /* Index of first dynamic symbol in global offset table. */
534 #define DT_MIPS_GOTSYM 0x70000013
536 /* Number of page table entries in global offset table. */
537 #define DT_MIPS_HIPAGENO 0x70000014
539 /* Address of run time loader map, used for debugging. */
540 #define DT_MIPS_RLD_MAP 0x70000016
542 /* Delta C++ class definition. */
543 #define DT_MIPS_DELTA_CLASS 0x70000017
545 /* Number of entries in DT_MIPS_DELTA_CLASS. */
546 #define DT_MIPS_DELTA_CLASS_NO 0x70000018
548 /* Delta C++ class instances. */
549 #define DT_MIPS_DELTA_INSTANCE 0x70000019
551 /* Number of entries in DT_MIPS_DELTA_INSTANCE. */
552 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a
554 /* Delta relocations. */
555 #define DT_MIPS_DELTA_RELOC 0x7000001b
557 /* Number of entries in DT_MIPS_DELTA_RELOC. */
558 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c
560 /* Delta symbols that Delta relocations refer to. */
561 #define DT_MIPS_DELTA_SYM 0x7000001d
563 /* Number of entries in DT_MIPS_DELTA_SYM. */
564 #define DT_MIPS_DELTA_SYM_NO 0x7000001e
566 /* Delta symbols that hold class declarations. */
567 #define DT_MIPS_DELTA_CLASSSYM 0x70000020
569 /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */
570 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021
572 /* Flags indicating information about C++ flavor. */
573 #define DT_MIPS_CXX_FLAGS 0x70000022
575 /* Pixie information (???). */
576 #define DT_MIPS_PIXIE_INIT 0x70000023
579 #define DT_MIPS_SYMBOL_LIB 0x70000024
582 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025
585 #define DT_MIPS_LOCAL_GOTIDX 0x70000026
588 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027
591 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028
593 /* Address of `.MIPS.options'. */
594 #define DT_MIPS_OPTIONS 0x70000029
596 /* Address of `.interface'. */
597 #define DT_MIPS_INTERFACE 0x7000002a
600 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b
602 /* Size of the .interface section. */
603 #define DT_MIPS_INTERFACE_SIZE 0x7000002c
605 /* Size of rld_text_resolve function stored in the GOT. */
606 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d
608 /* Default suffix of DSO to be added by rld on dlopen() calls. */
609 #define DT_MIPS_PERF_SUFFIX 0x7000002e
611 /* Size of compact relocation section (O32). */
612 #define DT_MIPS_COMPACT_SIZE 0x7000002f
614 /* GP value for auxiliary GOTs. */
615 #define DT_MIPS_GP_VALUE 0x70000030
617 /* Address of auxiliary .dynamic. */
618 #define DT_MIPS_AUX_DYNAMIC 0x70000031
620 /* Flags which may appear in a DT_MIPS_FLAGS entry. */
623 #define RHF_NONE 0x00000000
625 /* Uses shortcut pointers. */
626 #define RHF_QUICKSTART 0x00000001
628 /* Hash size is not a power of two. */
629 #define RHF_NOTPOT 0x00000002
631 /* Ignore LD_LIBRARY_PATH. */
632 #define RHS_NO_LIBRARY_REPLACEMENT \
635 #define RHF_NO_MOVE 0x00000008
636 #define RHF_SGI_ONLY 0x00000010
637 #define RHF_GUARANTEE_INIT 0x00000020
638 #define RHF_DELTA_C_PLUS_PLUS 0x00000040
639 #define RHF_GUARANTEE_START_INIT 0x00000080
640 #define RHF_PIXIE 0x00000100
641 #define RHF_DEFAULT_DELAY_LOAD 0x00000200
642 #define RHF_REQUICKSTART 0x00000400
643 #define RHF_REQUICKSTARTED 0x00000800
644 #define RHF_CORD 0x00001000
645 #define RHF_NO_UNRES_UNDEF 0x00002000
646 #define RHF_RLD_ORDER_SAFE 0x00004000
648 /* Special values for the st_other field in the symbol table. These
649 are used in an Irix 5 dynamic symbol table. */
651 #define STO_DEFAULT 0x00
652 #define STO_INTERNAL 0x01
653 #define STO_HIDDEN 0x02
654 #define STO_PROTECTED 0x03
656 /* start-sanitize-sky */
657 /* These values are used for the dvp. */
658 #define STO_DVP_DMA 0xe8
659 #define STO_DVP_VIF 0xe9
660 #define STO_DVP_GIF 0xea
661 #define STO_DVP_VU 0xeb
662 /* Reserve a couple in case we need them. */
663 #define STO_DVP_RES1 0xec
664 #define STO_DVP_RES2 0xed
665 #define STO_DVP_P(sto) ((sto) >= STO_DVP_DMA && (sto) <= STO_DVP_RES2)
667 /* end-sanitize-sky */
668 /* This value is used for a mips16 .text symbol. */
669 #define STO_MIPS16 0xf0
671 /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each
672 relocation entry specifies up to three actual relocations, all at
673 the same address. The first relocation which required a symbol
674 uses the symbol in the r_sym field. The second relocation which
675 requires a symbol uses the symbol in the r_ssym field. If all
676 three relocations require a symbol, the third one uses a zero
679 /* An entry in a 64 bit SHT_REL section. */
683 /* Address of relocation. */
684 unsigned char r_offset
[8];
686 unsigned char r_sym
[4];
687 /* Special symbol. */
688 unsigned char r_ssym
[1];
689 /* Third relocation. */
690 unsigned char r_type3
[1];
691 /* Second relocation. */
692 unsigned char r_type2
[1];
693 /* First relocation. */
694 unsigned char r_type
[1];
695 } Elf64_Mips_External_Rel
;
699 /* Address of relocation. */
703 /* Special symbol. */
704 unsigned char r_ssym
;
705 /* Third relocation. */
706 unsigned char r_type3
;
707 /* Second relocation. */
708 unsigned char r_type2
;
709 /* First relocation. */
710 unsigned char r_type
;
711 } Elf64_Mips_Internal_Rel
;
713 /* An entry in a 64 bit SHT_RELA section. */
717 /* Address of relocation. */
718 unsigned char r_offset
[8];
720 unsigned char r_sym
[4];
721 /* Special symbol. */
722 unsigned char r_ssym
[1];
723 /* Third relocation. */
724 unsigned char r_type3
[1];
725 /* Second relocation. */
726 unsigned char r_type2
[1];
727 /* First relocation. */
728 unsigned char r_type
[1];
730 unsigned char r_addend
[8];
731 } Elf64_Mips_External_Rela
;
735 /* Address of relocation. */
739 /* Special symbol. */
740 unsigned char r_ssym
;
741 /* Third relocation. */
742 unsigned char r_type3
;
743 /* Second relocation. */
744 unsigned char r_type2
;
745 /* First relocation. */
746 unsigned char r_type
;
748 bfd_signed_vma r_addend
;
749 } Elf64_Mips_Internal_Rela
;
751 /* Values found in the r_ssym field of a relocation entry. */
759 /* Value of GP in object being relocated. */
762 /* Address of location being relocated. */
765 /* A SHT_MIPS_OPTIONS section contains a series of options, each of
766 which starts with this header. */
770 /* Type of option. */
771 unsigned char kind
[1];
772 /* Size of option descriptor, including header. */
773 unsigned char size
[1];
774 /* Section index of affected section, or 0 for global option. */
775 unsigned char section
[2];
776 /* Information specific to this kind of option. */
777 unsigned char info
[4];
778 } Elf_External_Options
;
782 /* Type of option. */
784 /* Size of option descriptor, including header. */
786 /* Section index of affected section, or 0 for global option. */
787 unsigned short section
;
788 /* Information specific to this kind of option. */
790 } Elf_Internal_Options
;
792 /* MIPS ELF option header swapping routines. */
793 extern void bfd_mips_elf_swap_options_in
794 PARAMS ((bfd
*, const Elf_External_Options
*, Elf_Internal_Options
*));
795 extern void bfd_mips_elf_swap_options_out
796 PARAMS ((bfd
*, const Elf_Internal_Options
*, Elf_External_Options
*));
798 /* Values which may appear in the kind field of an Elf_Options
804 /* Register usage and GP value. */
805 #define ODK_REGINFO 1
807 /* Exception processing information. */
808 #define ODK_EXCEPTIONS 2
810 /* Section padding information. */
813 /* Hardware workarounds performed. */
814 #define ODK_HWPATCH 4
816 /* Fill value used by the linker. */
819 /* Reserved space for desktop tools. */
822 /* Hardware workarounds, AND bits when merging. */
825 /* Hardware workarounds, OR bits when merging. */
828 /* GP group to use for text/data sections. */
829 #define ODK_GP_GROUP 9
831 /* ID information. */
834 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
835 structure. In the 64 bit ABI, it is the following structure. The
836 info field of the options header is not used. */
840 /* Mask of general purpose registers used. */
841 unsigned char ri_gprmask
[4];
843 unsigned char ri_pad
[4];
844 /* Mask of co-processor registers used. */
845 unsigned char ri_cprmask
[4][4];
846 /* GP register value for this object file. */
847 unsigned char ri_gp_value
[8];
848 } Elf64_External_RegInfo
;
852 /* Mask of general purpose registers used. */
853 unsigned long ri_gprmask
;
855 unsigned long ri_pad
;
856 /* Mask of co-processor registers used. */
857 unsigned long ri_cprmask
[4];
858 /* GP register value for this object file. */
860 } Elf64_Internal_RegInfo
;
862 /* MIPS ELF reginfo swapping routines. */
863 extern void bfd_mips_elf64_swap_reginfo_in
864 PARAMS ((bfd
*, const Elf64_External_RegInfo
*, Elf64_Internal_RegInfo
*));
865 extern void bfd_mips_elf64_swap_reginfo_out
866 PARAMS ((bfd
*, const Elf64_Internal_RegInfo
*, Elf64_External_RegInfo
*));
868 /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */
869 #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */
870 #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */
871 #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */
872 #define OEX_SMM 0x20000 /* Force sequential memory mode. */
873 #define OEX_FPDBUG 0x40000 /* Force floating-point debug mode. */
874 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */
876 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */
877 #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */
878 #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */
879 #define OEX_FPU_OFLO 0x04 /* Overflow exception. */
880 #define OEX_FPU_UFLO 0x02 /* Underflow exception. */
881 #define OEX_FPU_INEX 0x01 /* Inexact exception. */
883 /* Masks for the info word of an ODK_PAD descriptor. */
884 #define OPAD_PREFIX 0x01
885 #define OPAD_POSTFIX 0x02
886 #define OPAD_SYMBOL 0x04
888 /* Masks for the info word of an ODK_HWPATCH descriptor. */
889 #define OHW_R4KEOP 0x01 /* R4000 end-of-page patch. */
890 #define OHW_R8KPFETCH 0x02 /* May need R8000 prefetch patch. */
891 #define OHW_R5KEOP 0x04 /* R5000 end-of-page patch. */
892 #define OHW_R5KCVTL 0x08 /* R5000 cvt.[ds].l bug (clean == 1). */
894 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */
895 #define OGP_GROUP 0x0000ffff /* GP group number. */
896 #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */
898 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */
899 #define OHWA0_R4KEOP_CHECKED 0x00000001
900 #define OHWA0_R4KEOP_CLEAN 0x00000002
902 /* start-sanitize-sky */
903 /* The vu overlay table is an array of this. */
907 /* `name' is offset into overlay string table section. */
911 } Elf32_Dvp_External_Overlay
;
918 } Elf32_Dvp_Internal_Overlay
;
920 /* overlay swapping routines. */
921 extern void bfd_dvp_elf32_swap_overlay_in
922 PARAMS ((bfd
*, const Elf32_Dvp_External_Overlay
*,
923 Elf32_Dvp_Internal_Overlay
*));
924 extern void bfd_dvp_elf32_swap_overlay_out
925 PARAMS ((bfd
*, const Elf32_Dvp_Internal_Overlay
*,
926 Elf32_Dvp_External_Overlay
*));
928 /* end-sanitize-sky */
930 #endif /* _ELF_MIPS_H */