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 /* Machine variant if we know it. This field was invented at Cygnus,
125 but it is hoped that other vendors will adopt it. If some standard
126 is developed, this code should be changed to follow it. */
128 #define EF_MIPS_MACH 0x00FF0000
130 /* Cygnus is choosing values between 80 and 9F;
131 00 - 7F should be left for a future standard;
132 the rest are open. */
134 #define E_MIPS_MACH_3900 0x00810000
136 #define E_MIPS_MACH_4010 0x00820000
137 #define E_MIPS_MACH_4100 0x00830000
138 /* start-sanitize-vr4320 */
139 #define E_MIPS_MACH_4320 0x00840000
140 /* end-sanitize-vr4320 */
141 #define E_MIPS_MACH_4650 0x00850000
142 /* start-sanitize-tx49 */
143 #define E_MIPS_MACH_4900 0x00860000
144 /* end-sanitize-tx49 */
146 /* start-sanitize-cygnus */
147 #define E_MIPS_MACH_5400 0x00910000
148 /* end-sanitize-cygnus */
149 /* start-sanitize-r5900 */
150 #define E_MIPS_MACH_5900 0x00920000
151 /* end-sanitize-r5900 */
153 /* Processor specific section indices. These sections do not actually
154 exist. Symbols with a st_shndx field corresponding to one of these
155 values have a special meaning. */
157 /* Defined and allocated common symbol. Value is virtual address. If
158 relocated, alignment must be preserved. */
159 #define SHN_MIPS_ACOMMON 0xff00
161 /* Defined and allocated text symbol. Value is virtual address.
162 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
163 #define SHN_MIPS_TEXT 0xff01
165 /* Defined and allocated data symbol. Value is virtual address.
166 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
167 #define SHN_MIPS_DATA 0xff02
169 /* Small common symbol. */
170 #define SHN_MIPS_SCOMMON 0xff03
172 /* Small undefined symbol. */
173 #define SHN_MIPS_SUNDEFINED 0xff04
175 /* Processor specific section types. */
177 /* Section contains the set of dynamic shared objects used when
178 statically linking. */
179 #define SHT_MIPS_LIBLIST 0x70000000
181 /* I'm not sure what this is, but it's used on Irix 5. */
182 #define SHT_MIPS_MSYM 0x70000001
184 /* Section contains list of symbols whose definitions conflict with
185 symbols defined in shared objects. */
186 #define SHT_MIPS_CONFLICT 0x70000002
188 /* Section contains the global pointer table. */
189 #define SHT_MIPS_GPTAB 0x70000003
191 /* Section contains microcode information. The exact format is
193 #define SHT_MIPS_UCODE 0x70000004
195 /* Section contains some sort of debugging information. The exact
196 format is unspecified. It's probably ECOFF symbols. */
197 #define SHT_MIPS_DEBUG 0x70000005
199 /* Section contains register usage information. */
200 #define SHT_MIPS_REGINFO 0x70000006
203 #define SHT_MIPS_PACKAGE 0x70000007
206 #define SHT_MIPS_PACKSYM 0x70000008
209 #define SHT_MIPS_RELD 0x70000009
211 /* Section contains interface information. */
212 #define SHT_MIPS_IFACE 0x7000000b
214 /* Section contains description of contents of another section. */
215 #define SHT_MIPS_CONTENT 0x7000000c
217 /* Section contains miscellaneous options. */
218 #define SHT_MIPS_OPTIONS 0x7000000d
221 #define SHT_MIPS_SHDR 0x70000010
224 #define SHT_MIPS_FDESC 0x70000011
227 #define SHT_MIPS_EXTSYM 0x70000012
230 #define SHT_MIPS_DENSE 0x70000013
233 #define SHT_MIPS_PDESC 0x70000014
236 #define SHT_MIPS_LOCSYM 0x70000015
239 #define SHT_MIPS_AUXSYM 0x70000016
242 #define SHT_MIPS_OPTSYM 0x70000017
245 #define SHT_MIPS_LOCSTR 0x70000018
248 #define SHT_MIPS_LINE 0x70000019
251 #define SHT_MIPS_RFDESC 0x7000001a
254 #define SHT_MIPS_DELTASYM 0x7000001b
257 #define SHT_MIPS_DELTAINST 0x7000001c
260 #define SHT_MIPS_DELTACLASS 0x7000001d
262 /* DWARF debugging section. */
263 #define SHT_MIPS_DWARF 0x7000001e
266 #define SHT_MIPS_DELTADECL 0x7000001f
268 /* List of libraries the binary depends on. Includes a time stamp, version
270 #define SHT_MIPS_SYMBOL_LIB 0x70000020
272 /* Events section. */
273 #define SHT_MIPS_EVENTS 0x70000021
276 #define SHT_MIPS_TRANSLATE 0x70000022
279 #define SHT_MIPS_PIXIE 0x70000023
282 #define SHT_MIPS_XLATE 0x70000024
285 #define SHT_MIPS_XLATE_DEBUG 0x70000025
288 #define SHT_MIPS_WHIRL 0x70000026
291 #define SHT_MIPS_EH_REGION 0x70000027
294 #define SHT_MIPS_XLATE_OLD 0x70000028
297 #define SHT_MIPS_PDR_EXCEPTION 0x70000029
299 /* start-sanitize-sky */
300 /* The VU overlay table. */
301 #define SHT_DVP_OVERLAY_TABLE 0x7ffff420
302 #define SHNAME_DVP_OVERLAY_TABLE ".DVP.ovlytab"
303 #define SHNAME_DVP_OVERLAY_STRTAB ".DVP.ovlystrtab"
305 #define SHT_DVP_OVERLAY 0x7ffff421
306 /* Prefix of VU overlay sections. */
307 #define SHNAME_DVP_OVERLAY_PREFIX ".DVP.overlay."
308 /* end-sanitize-sky */
310 /* A section of type SHT_MIPS_LIBLIST contains an array of the
311 following structure. The sh_link field is the section index of the
312 string table. The sh_info field is the number of entries in the
316 /* String table index for name of shared object. */
317 unsigned long l_name;
319 unsigned long l_time_stamp;
320 /* Checksum of symbol names and common sizes. */
321 unsigned long l_checksum;
322 /* String table index for version. */
323 unsigned long l_version;
325 unsigned long l_flags;
328 /* The external version of Elf32_Lib. */
331 unsigned char l_name[4];
332 unsigned char l_time_stamp[4];
333 unsigned char l_checksum[4];
334 unsigned char l_version[4];
335 unsigned char l_flags[4];
336 } Elf32_External_Lib;
338 /* The l_flags field of an Elf32_Lib structure may contain the
341 /* Require an exact match at runtime. */
342 #define LL_EXACT_MATCH 0x00000001
344 /* Ignore version incompatibilities at runtime. */
345 #define LL_IGNORE_INT_VER 0x00000002
347 /* Require matching minor version number. */
348 #define LL_REQUIRE_MINOR 0x00000004
351 #define LL_EXPORTS 0x00000008
353 /* Delay loading of this library until really needed. */
354 #define LL_DELAY_LOAD 0x00000010
356 /* ??? Delta C++ stuff ??? */
357 #define LL_DELTA 0x00000020
360 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the
361 .dynsym section. Each element has the following type. */
362 typedef unsigned long Elf32_Conflict;
364 /* A section of type SHT_MIPS_GPTAB contains information about how
365 much GP space would be required for different -G arguments. This
366 information is only used so that the linker can provide informative
367 suggestions as to the best -G value to use. The sh_info field is
368 the index of the section for which this information applies. The
369 contents of the section are an array of the following union. The
370 first element uses the gt_header field. The remaining elements use
371 the gt_entry field. */
376 /* -G value actually used for this object file. */
377 unsigned long gt_current_g_value;
379 unsigned long gt_unused;
383 /* If this -G argument has been used... */
384 unsigned long gt_g_value;
385 /* ...this many GP section bytes would be required. */
386 unsigned long gt_bytes;
390 /* The external version of Elf32_gptab. */
396 unsigned char gt_current_g_value[4];
397 unsigned char gt_unused[4];
401 unsigned char gt_g_value[4];
402 unsigned char gt_bytes[4];
404 } Elf32_External_gptab;
406 /* A section of type SHT_MIPS_REGINFO contains the following
410 /* Mask of general purpose registers used. */
411 unsigned long ri_gprmask;
412 /* Mask of co-processor registers used. */
413 unsigned long ri_cprmask[4];
414 /* GP register value for this object file. */
418 /* The external version of the Elf_RegInfo structure. */
421 unsigned char ri_gprmask[4];
422 unsigned char ri_cprmask[4][4];
423 unsigned char ri_gp_value[4];
424 } Elf32_External_RegInfo;
426 /* MIPS ELF .reginfo swapping routines. */
427 extern void bfd_mips_elf32_swap_reginfo_in
428 PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *));
429 extern void bfd_mips_elf32_swap_reginfo_out
430 PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *));
432 /* Processor specific section flags. */
434 /* This section must be in the global data area. */
435 #define SHF_MIPS_GPREL 0x10000000
437 /* This section should be merged. */
438 #define SHF_MIPS_MERGE 0x20000000
440 /* This section contains 32 bit addresses. */
441 #define SHF_MIPS_ADDR32 0x40000000
443 /* This section contains 64 bit addresses. */
444 #define SHF_MIPS_ADDR64 0x80000000
446 /* This section may not be stripped. */
447 #define SHF_MIPS_NOSTRIP 0x08000000
449 /* This section is local to threads. */
450 #define SHF_MIPS_LOCAL 0x04000000
452 /* Linker should generate implicit weak names for this section. */
453 #define SHF_MIPS_NAMES 0x02000000
455 /* Processor specific program header types. */
457 /* Register usage information. Identifies one .reginfo section. */
458 #define PT_MIPS_REGINFO 0x70000000
460 /* Runtime procedure table. */
461 #define PT_MIPS_RTPROC 0x70000001
463 /* Options (for what ???). */
464 #define PT_MIPS_OPTIONS 0x70000002
466 /* Processor specific dynamic array tags. */
468 /* 32 bit version number for runtime linker interface. */
469 #define DT_MIPS_RLD_VERSION 0x70000001
472 #define DT_MIPS_TIME_STAMP 0x70000002
474 /* Checksum of external strings and common sizes. */
475 #define DT_MIPS_ICHECKSUM 0x70000003
477 /* Index of version string in string table. */
478 #define DT_MIPS_IVERSION 0x70000004
480 /* 32 bits of flags. */
481 #define DT_MIPS_FLAGS 0x70000005
483 /* Base address of the segment. */
484 #define DT_MIPS_BASE_ADDRESS 0x70000006
487 #define DT_MIPS_MSYM 0x70000007
489 /* Address of .conflict section. */
490 #define DT_MIPS_CONFLICT 0x70000008
492 /* Address of .liblist section. */
493 #define DT_MIPS_LIBLIST 0x70000009
495 /* Number of local global offset table entries. */
496 #define DT_MIPS_LOCAL_GOTNO 0x7000000a
498 /* Number of entries in the .conflict section. */
499 #define DT_MIPS_CONFLICTNO 0x7000000b
501 /* Number of entries in the .liblist section. */
502 #define DT_MIPS_LIBLISTNO 0x70000010
504 /* Number of entries in the .dynsym section. */
505 #define DT_MIPS_SYMTABNO 0x70000011
507 /* Index of first external dynamic symbol not referenced locally. */
508 #define DT_MIPS_UNREFEXTNO 0x70000012
510 /* Index of first dynamic symbol in global offset table. */
511 #define DT_MIPS_GOTSYM 0x70000013
513 /* Number of page table entries in global offset table. */
514 #define DT_MIPS_HIPAGENO 0x70000014
516 /* Address of run time loader map, used for debugging. */
517 #define DT_MIPS_RLD_MAP 0x70000016
519 /* Delta C++ class definition. */
520 #define DT_MIPS_DELTA_CLASS 0x70000017
522 /* Number of entries in DT_MIPS_DELTA_CLASS. */
523 #define DT_MIPS_DELTA_CLASS_NO 0x70000018
525 /* Delta C++ class instances. */
526 #define DT_MIPS_DELTA_INSTANCE 0x70000019
528 /* Number of entries in DT_MIPS_DELTA_INSTANCE. */
529 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a
531 /* Delta relocations. */
532 #define DT_MIPS_DELTA_RELOC 0x7000001b
534 /* Number of entries in DT_MIPS_DELTA_RELOC. */
535 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c
537 /* Delta symbols that Delta relocations refer to. */
538 #define DT_MIPS_DELTA_SYM 0x7000001d
540 /* Number of entries in DT_MIPS_DELTA_SYM. */
541 #define DT_MIPS_DELTA_SYM_NO 0x7000001e
543 /* Delta symbols that hold class declarations. */
544 #define DT_MIPS_DELTA_CLASSSYM 0x70000020
546 /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */
547 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021
549 /* Flags indicating information about C++ flavor. */
550 #define DT_MIPS_CXX_FLAGS 0x70000022
552 /* Pixie information (???). */
553 #define DT_MIPS_PIXIE_INIT 0x70000023
556 #define DT_MIPS_SYMBOL_LIB 0x70000024
559 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025
562 #define DT_MIPS_LOCAL_GOTIDX 0x70000026
565 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027
568 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028
570 /* Address of `.MIPS.options'. */
571 #define DT_MIPS_OPTIONS 0x70000029
573 /* Address of `.interface'. */
574 #define DT_MIPS_INTERFACE 0x7000002a
577 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b
579 /* Size of the .interface section. */
580 #define DT_MIPS_INTERFACE_SIZE 0x7000002c
582 /* Size of rld_text_resolve function stored in the GOT. */
583 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d
585 /* Default suffix of DSO to be added by rld on dlopen() calls. */
586 #define DT_MIPS_PERF_SUFFIX 0x7000002e
588 /* Size of compact relocation section (O32). */
589 #define DT_MIPS_COMPACT_SIZE 0x7000002f
591 /* GP value for auxiliary GOTs. */
592 #define DT_MIPS_GP_VALUE 0x70000030
594 /* Address of auxiliary .dynamic. */
595 #define DT_MIPS_AUX_DYNAMIC 0x70000031
597 /* Flags which may appear in a DT_MIPS_FLAGS entry. */
600 #define RHF_NONE 0x00000000
602 /* Uses shortcut pointers. */
603 #define RHF_QUICKSTART 0x00000001
605 /* Hash size is not a power of two. */
606 #define RHF_NOTPOT 0x00000002
608 /* Ignore LD_LIBRARY_PATH. */
609 #define RHS_NO_LIBRARY_REPLACEMENT \
612 #define RHF_NO_MOVE 0x00000008
613 #define RHF_SGI_ONLY 0x00000010
614 #define RHF_GUARANTEE_INIT 0x00000020
615 #define RHF_DELTA_C_PLUS_PLUS 0x00000040
616 #define RHF_GUARANTEE_START_INIT 0x00000080
617 #define RHF_PIXIE 0x00000100
618 #define RHF_DEFAULT_DELAY_LOAD 0x00000200
619 #define RHF_REQUICKSTART 0x00000400
620 #define RHF_REQUICKSTARTED 0x00000800
621 #define RHF_CORD 0x00001000
622 #define RHF_NO_UNRES_UNDEF 0x00002000
623 #define RHF_RLD_ORDER_SAFE 0x00004000
625 /* Special values for the st_other field in the symbol table. These
626 are used in an Irix 5 dynamic symbol table. */
628 #define STO_DEFAULT 0x00
629 #define STO_INTERNAL 0x01
630 #define STO_HIDDEN 0x02
631 #define STO_PROTECTED 0x03
633 /* start-sanitize-sky */
634 /* These values are used for the dvp. */
635 #define STO_DVP_DMA 0xe8
636 #define STO_DVP_VIF 0xe9
637 #define STO_DVP_GIF 0xea
638 #define STO_DVP_VU 0xeb
639 /* Reserve a couple in case we need them. */
640 #define STO_DVP_RES1 0xec
641 #define STO_DVP_RES2 0xed
642 #define STO_DVP_P(sto) ((sto) >= STO_DVP_DMA && (sto) <= STO_DVP_RES2)
644 /* end-sanitize-sky */
645 /* This value is used for a mips16 .text symbol. */
646 #define STO_MIPS16 0xf0
648 /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each
649 relocation entry specifies up to three actual relocations, all at
650 the same address. The first relocation which required a symbol
651 uses the symbol in the r_sym field. The second relocation which
652 requires a symbol uses the symbol in the r_ssym field. If all
653 three relocations require a symbol, the third one uses a zero
656 /* An entry in a 64 bit SHT_REL section. */
660 /* Address of relocation. */
661 unsigned char r_offset[8];
663 unsigned char r_sym[4];
664 /* Special symbol. */
665 unsigned char r_ssym[1];
666 /* Third relocation. */
667 unsigned char r_type3[1];
668 /* Second relocation. */
669 unsigned char r_type2[1];
670 /* First relocation. */
671 unsigned char r_type[1];
672 } Elf64_Mips_External_Rel;
676 /* Address of relocation. */
680 /* Special symbol. */
681 unsigned char r_ssym;
682 /* Third relocation. */
683 unsigned char r_type3;
684 /* Second relocation. */
685 unsigned char r_type2;
686 /* First relocation. */
687 unsigned char r_type;
688 } Elf64_Mips_Internal_Rel;
690 /* An entry in a 64 bit SHT_RELA section. */
694 /* Address of relocation. */
695 unsigned char r_offset[8];
697 unsigned char r_sym[4];
698 /* Special symbol. */
699 unsigned char r_ssym[1];
700 /* Third relocation. */
701 unsigned char r_type3[1];
702 /* Second relocation. */
703 unsigned char r_type2[1];
704 /* First relocation. */
705 unsigned char r_type[1];
707 unsigned char r_addend[8];
708 } Elf64_Mips_External_Rela;
712 /* Address of relocation. */
716 /* Special symbol. */
717 unsigned char r_ssym;
718 /* Third relocation. */
719 unsigned char r_type3;
720 /* Second relocation. */
721 unsigned char r_type2;
722 /* First relocation. */
723 unsigned char r_type;
725 bfd_signed_vma r_addend;
726 } Elf64_Mips_Internal_Rela;
728 /* Values found in the r_ssym field of a relocation entry. */
736 /* Value of GP in object being relocated. */
739 /* Address of location being relocated. */
742 /* A SHT_MIPS_OPTIONS section contains a series of options, each of
743 which starts with this header. */
747 /* Type of option. */
748 unsigned char kind[1];
749 /* Size of option descriptor, including header. */
750 unsigned char size[1];
751 /* Section index of affected section, or 0 for global option. */
752 unsigned char section[2];
753 /* Information specific to this kind of option. */
754 unsigned char info[4];
755 } Elf_External_Options;
759 /* Type of option. */
761 /* Size of option descriptor, including header. */
763 /* Section index of affected section, or 0 for global option. */
764 unsigned short section;
765 /* Information specific to this kind of option. */
767 } Elf_Internal_Options;
769 /* MIPS ELF option header swapping routines. */
770 extern void bfd_mips_elf_swap_options_in
771 PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *));
772 extern void bfd_mips_elf_swap_options_out
773 PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *));
775 /* Values which may appear in the kind field of an Elf_Options
781 /* Register usage and GP value. */
782 #define ODK_REGINFO 1
784 /* Exception processing information. */
785 #define ODK_EXCEPTIONS 2
787 /* Section padding information. */
790 /* Hardware workarounds performed. */
791 #define ODK_HWPATCH 4
793 /* Fill value used by the linker. */
796 /* Reserved space for desktop tools. */
799 /* Hardware workarounds, AND bits when merging. */
802 /* Hardware workarounds, OR bits when merging. */
805 /* GP group to use for text/data sections. */
806 #define ODK_GP_GROUP 9
808 /* ID information. */
811 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
812 structure. In the 64 bit ABI, it is the following structure. The
813 info field of the options header is not used. */
817 /* Mask of general purpose registers used. */
818 unsigned char ri_gprmask[4];
820 unsigned char ri_pad[4];
821 /* Mask of co-processor registers used. */
822 unsigned char ri_cprmask[4][4];
823 /* GP register value for this object file. */
824 unsigned char ri_gp_value[8];
825 } Elf64_External_RegInfo;
829 /* Mask of general purpose registers used. */
830 unsigned long ri_gprmask;
832 unsigned long ri_pad;
833 /* Mask of co-processor registers used. */
834 unsigned long ri_cprmask[4];
835 /* GP register value for this object file. */
837 } Elf64_Internal_RegInfo;
839 /* MIPS ELF reginfo swapping routines. */
840 extern void bfd_mips_elf64_swap_reginfo_in
841 PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *));
842 extern void bfd_mips_elf64_swap_reginfo_out
843 PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *));
845 /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */
846 #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */
847 #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */
848 #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */
849 #define OEX_SMM 0x20000 /* Force sequential memory mode. */
850 #define OEX_FPDBUG 0x40000 /* Force floating-point debug mode. */
851 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */
853 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */
854 #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */
855 #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */
856 #define OEX_FPU_OFLO 0x04 /* Overflow exception. */
857 #define OEX_FPU_UFLO 0x02 /* Underflow exception. */
858 #define OEX_FPU_INEX 0x01 /* Inexact exception. */
860 /* Masks for the info word of an ODK_PAD descriptor. */
861 #define OPAD_PREFIX 0x01
862 #define OPAD_POSTFIX 0x02
863 #define OPAD_SYMBOL 0x04
865 /* Masks for the info word of an ODK_HWPATCH descriptor. */
866 #define OHW_R4KEOP 0x01 /* R4000 end-of-page patch. */
867 #define OHW_R8KPFETCH 0x02 /* May need R8000 prefetch patch. */
868 #define OHW_R5KEOP 0x04 /* R5000 end-of-page patch. */
869 #define OHW_R5KCVTL 0x08 /* R5000 cvt.[ds].l bug (clean == 1). */
871 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */
872 #define OGP_GROUP 0x0000ffff /* GP group number. */
873 #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */
875 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */
876 #define OHWA0_R4KEOP_CHECKED 0x00000001
877 #define OHWA0_R4KEOP_CLEAN 0x00000002
879 /* start-sanitize-sky */
880 /* The vu overlay table is an array of this. */
884 /* `name' is offset into overlay string table section. */
888 } Elf32_Dvp_External_Overlay;
895 } Elf32_Dvp_Internal_Overlay;
897 /* overlay swapping routines. */
898 extern void bfd_dvp_elf32_swap_overlay_in
899 PARAMS ((bfd *, const Elf32_Dvp_External_Overlay *,
900 Elf32_Dvp_Internal_Overlay *));
901 extern void bfd_dvp_elf32_swap_overlay_out
902 PARAMS ((bfd *, const Elf32_Dvp_Internal_Overlay *,
903 Elf32_Dvp_External_Overlay *));
905 /* end-sanitize-sky */
907 #endif /* _ELF_MIPS_H */