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 /* Relocation types. */
31 START_RELOC_NUMBERS (elf_mips_reloc_type)
32 RELOC_NUMBER (R_MIPS_NONE, 0)
33 RELOC_NUMBER (R_MIPS_16, 1)
34 RELOC_NUMBER (R_MIPS_32, 2)
35 RELOC_NUMBER (R_MIPS_REL32, 3)
36 RELOC_NUMBER (R_MIPS_26, 4)
37 RELOC_NUMBER (R_MIPS_HI16, 5)
38 RELOC_NUMBER (R_MIPS_LO16, 6)
39 RELOC_NUMBER (R_MIPS_GPREL16, 7)
40 RELOC_NUMBER (R_MIPS_LITERAL, 8)
41 RELOC_NUMBER (R_MIPS_GOT16, 9)
42 RELOC_NUMBER (R_MIPS_PC16, 10)
43 RELOC_NUMBER (R_MIPS_CALL16, 11)
44 RELOC_NUMBER (R_MIPS_GPREL32 12)
45 /* The remaining relocs are defined on Irix, although they are not
46 in the MIPS ELF ABI. */
47 RELOC_NUMBER (R_MIPS_UNUSED1, 13)
48 RELOC_NUMBER (R_MIPS_UNUSED2, 14)
49 RELOC_NUMBER (R_MIPS_UNUSED3, 15)
50 RELOC_NUMBER (R_MIPS_SHIFT5, 16)
51 RELOC_NUMBER (R_MIPS_SHIFT6, 17)
52 RELOC_NUMBER (R_MIPS_64, 18)
53 RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
54 RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
55 RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
56 RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
57 RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
58 RELOC_NUMBER (R_MIPS_SUB, 24)
59 RELOC_NUMBER (R_MIPS_INSERT_A, 25)
60 RELOC_NUMBER (R_MIPS_INSERT_B, 26)
61 RELOC_NUMBER (R_MIPS_DELETE, 27)
62 RELOC_NUMBER (R_MIPS_HIGHER, 28)
63 RELOC_NUMBER (R_MIPS_HIGHEST, 29)
64 RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
65 RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
66 /* start-sanitize-r5900 */
67 /* This is used by a mips co-processor instruction. */
68 RELOC_NUMBER (R_MIPS15_S3, 32)
69 /* end-sanitize-r5900 */
70 RELOC_NUMBER (R_MIPS_max, 33)
71 /* These relocs are used for the mips16. */
72 RELOC_NUMBER (R_MIPS16_26, 100)
73 RELOC_NUMBER (R_MIPS16_GPREL, 101)
74 /* start-sanitize-sky */
75 /* These relocs are for the dvp. */
76 RELOC_NUMBER (R_MIPS_DVP_11_PCREL, 120)
77 RELOC_NUMBER (R_MIPS_DVP_27_S4, 121)
78 RELOC_NUMBER (R_MIPS_DVP_11_S4, 122)
79 RELOC_NUMBER (R_MIPS_DVP_U15_S3, 123)
80 /* end-sanitize-sky */
81 /* These are GNU extensions to enable C++ vtable garbage collection. */
82 RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
83 RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
86 /* Processor specific flags for the ELF header e_flags field. */
88 /* At least one .noreorder directive appears in the source. */
89 #define EF_MIPS_NOREORDER 0x00000001
91 /* File contains position independent code. */
92 #define EF_MIPS_PIC 0x00000002
94 /* Code in file uses the standard calling sequence for calling
95 position independent code. */
96 #define EF_MIPS_CPIC 0x00000004
98 /* Code in file uses new ABI (-n32 on Irix 6). */
99 #define EF_MIPS_ABI2 0x00000020
101 /* Four bit MIPS architecture field. */
102 #define EF_MIPS_ARCH 0xf0000000
105 #define E_MIPS_ARCH_1 0x00000000
108 #define E_MIPS_ARCH_2 0x10000000
111 #define E_MIPS_ARCH_3 0x20000000
114 #define E_MIPS_ARCH_4 0x30000000
116 /* Machine variant if we know it. This field was invented at Cygnus,
117 but it is hoped that other vendors will adopt it. If some standard
118 is developed, this code should be changed to follow it. */
120 #define EF_MIPS_MACH 0x00FF0000
122 /* Cygnus is choosing values between 80 and 9F;
123 00 - 7F should be left for a future standard;
124 the rest are open. */
126 #define E_MIPS_MACH_3900 0x00810000
128 #define E_MIPS_MACH_4010 0x00820000
129 #define E_MIPS_MACH_4100 0x00830000
130 /* start-sanitize-vr4320 */
131 #define E_MIPS_MACH_4320 0x00840000
132 /* end-sanitize-vr4320 */
133 #define E_MIPS_MACH_4650 0x00850000
134 /* start-sanitize-tx49 */
135 #define E_MIPS_MACH_4900 0x00860000
136 /* end-sanitize-tx49 */
138 /* start-sanitize-vr5400 */
139 #define E_MIPS_MACH_5400 0x00910000
140 /* end-sanitize-vr5400 */
141 /* start-sanitize-r5900 */
142 #define E_MIPS_MACH_5900 0x00920000
143 /* end-sanitize-r5900 */
145 /* Processor specific section indices. These sections do not actually
146 exist. Symbols with a st_shndx field corresponding to one of these
147 values have a special meaning. */
149 /* Defined and allocated common symbol. Value is virtual address. If
150 relocated, alignment must be preserved. */
151 #define SHN_MIPS_ACOMMON 0xff00
153 /* Defined and allocated text symbol. Value is virtual address.
154 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
155 #define SHN_MIPS_TEXT 0xff01
157 /* Defined and allocated data symbol. Value is virtual address.
158 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */
159 #define SHN_MIPS_DATA 0xff02
161 /* Small common symbol. */
162 #define SHN_MIPS_SCOMMON 0xff03
164 /* Small undefined symbol. */
165 #define SHN_MIPS_SUNDEFINED 0xff04
167 /* Processor specific section types. */
169 /* Section contains the set of dynamic shared objects used when
170 statically linking. */
171 #define SHT_MIPS_LIBLIST 0x70000000
173 /* I'm not sure what this is, but it's used on Irix 5. */
174 #define SHT_MIPS_MSYM 0x70000001
176 /* Section contains list of symbols whose definitions conflict with
177 symbols defined in shared objects. */
178 #define SHT_MIPS_CONFLICT 0x70000002
180 /* Section contains the global pointer table. */
181 #define SHT_MIPS_GPTAB 0x70000003
183 /* Section contains microcode information. The exact format is
185 #define SHT_MIPS_UCODE 0x70000004
187 /* Section contains some sort of debugging information. The exact
188 format is unspecified. It's probably ECOFF symbols. */
189 #define SHT_MIPS_DEBUG 0x70000005
191 /* Section contains register usage information. */
192 #define SHT_MIPS_REGINFO 0x70000006
195 #define SHT_MIPS_PACKAGE 0x70000007
198 #define SHT_MIPS_PACKSYM 0x70000008
201 #define SHT_MIPS_RELD 0x70000009
203 /* Section contains interface information. */
204 #define SHT_MIPS_IFACE 0x7000000b
206 /* Section contains description of contents of another section. */
207 #define SHT_MIPS_CONTENT 0x7000000c
209 /* Section contains miscellaneous options. */
210 #define SHT_MIPS_OPTIONS 0x7000000d
213 #define SHT_MIPS_SHDR 0x70000010
216 #define SHT_MIPS_FDESC 0x70000011
219 #define SHT_MIPS_EXTSYM 0x70000012
222 #define SHT_MIPS_DENSE 0x70000013
225 #define SHT_MIPS_PDESC 0x70000014
228 #define SHT_MIPS_LOCSYM 0x70000015
231 #define SHT_MIPS_AUXSYM 0x70000016
234 #define SHT_MIPS_OPTSYM 0x70000017
237 #define SHT_MIPS_LOCSTR 0x70000018
240 #define SHT_MIPS_LINE 0x70000019
243 #define SHT_MIPS_RFDESC 0x7000001a
246 #define SHT_MIPS_DELTASYM 0x7000001b
249 #define SHT_MIPS_DELTAINST 0x7000001c
252 #define SHT_MIPS_DELTACLASS 0x7000001d
254 /* DWARF debugging section. */
255 #define SHT_MIPS_DWARF 0x7000001e
258 #define SHT_MIPS_DELTADECL 0x7000001f
260 /* List of libraries the binary depends on. Includes a time stamp, version
262 #define SHT_MIPS_SYMBOL_LIB 0x70000020
264 /* Events section. */
265 #define SHT_MIPS_EVENTS 0x70000021
268 #define SHT_MIPS_TRANSLATE 0x70000022
271 #define SHT_MIPS_PIXIE 0x70000023
274 #define SHT_MIPS_XLATE 0x70000024
277 #define SHT_MIPS_XLATE_DEBUG 0x70000025
280 #define SHT_MIPS_WHIRL 0x70000026
283 #define SHT_MIPS_EH_REGION 0x70000027
286 #define SHT_MIPS_XLATE_OLD 0x70000028
289 #define SHT_MIPS_PDR_EXCEPTION 0x70000029
291 /* start-sanitize-sky */
292 /* The VU overlay table. */
293 #define SHT_DVP_OVERLAY_TABLE 0x7ffff420
294 #define SHNAME_DVP_OVERLAY_TABLE ".DVP.ovlytab"
295 #define SHNAME_DVP_OVERLAY_STRTAB ".DVP.ovlystrtab"
297 #define SHT_DVP_OVERLAY 0x7ffff421
298 /* Prefix of VU overlay sections. */
299 #define SHNAME_DVP_OVERLAY_PREFIX ".DVP.overlay."
300 /* end-sanitize-sky */
302 /* A section of type SHT_MIPS_LIBLIST contains an array of the
303 following structure. The sh_link field is the section index of the
304 string table. The sh_info field is the number of entries in the
308 /* String table index for name of shared object. */
309 unsigned long l_name;
311 unsigned long l_time_stamp;
312 /* Checksum of symbol names and common sizes. */
313 unsigned long l_checksum;
314 /* String table index for version. */
315 unsigned long l_version;
317 unsigned long l_flags;
320 /* The external version of Elf32_Lib. */
323 unsigned char l_name[4];
324 unsigned char l_time_stamp[4];
325 unsigned char l_checksum[4];
326 unsigned char l_version[4];
327 unsigned char l_flags[4];
328 } Elf32_External_Lib;
330 /* The l_flags field of an Elf32_Lib structure may contain the
333 /* Require an exact match at runtime. */
334 #define LL_EXACT_MATCH 0x00000001
336 /* Ignore version incompatibilities at runtime. */
337 #define LL_IGNORE_INT_VER 0x00000002
339 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the
340 .dynsym section. Each element has the following type. */
341 typedef unsigned long Elf32_Conflict;
343 /* A section of type SHT_MIPS_GPTAB contains information about how
344 much GP space would be required for different -G arguments. This
345 information is only used so that the linker can provide informative
346 suggestions as to the best -G value to use. The sh_info field is
347 the index of the section for which this information applies. The
348 contents of the section are an array of the following union. The
349 first element uses the gt_header field. The remaining elements use
350 the gt_entry field. */
355 /* -G value actually used for this object file. */
356 unsigned long gt_current_g_value;
358 unsigned long gt_unused;
362 /* If this -G argument has been used... */
363 unsigned long gt_g_value;
364 /* ...this many GP section bytes would be required. */
365 unsigned long gt_bytes;
369 /* The external version of Elf32_gptab. */
375 unsigned char gt_current_g_value[4];
376 unsigned char gt_unused[4];
380 unsigned char gt_g_value[4];
381 unsigned char gt_bytes[4];
383 } Elf32_External_gptab;
385 /* A section of type SHT_MIPS_REGINFO contains the following
389 /* Mask of general purpose registers used. */
390 unsigned long ri_gprmask;
391 /* Mask of co-processor registers used. */
392 unsigned long ri_cprmask[4];
393 /* GP register value for this object file. */
397 /* The external version of the Elf_RegInfo structure. */
400 unsigned char ri_gprmask[4];
401 unsigned char ri_cprmask[4][4];
402 unsigned char ri_gp_value[4];
403 } Elf32_External_RegInfo;
405 /* MIPS ELF .reginfo swapping routines. */
406 extern void bfd_mips_elf32_swap_reginfo_in
407 PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *));
408 extern void bfd_mips_elf32_swap_reginfo_out
409 PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *));
411 /* Processor specific section flags. */
413 /* This section must be in the global data area. */
414 #define SHF_MIPS_GPREL 0x10000000
416 /* This section should be merged. */
417 #define SHF_MIPS_MERGE 0x20000000
419 /* This section contains 32 bit addresses. */
420 #define SHF_MIPS_ADDR32 0x40000000
422 /* This section contains 64 bit addresses. */
423 #define SHF_MIPS_ADDR64 0x80000000
425 /* This section may not be stripped. */
426 #define SHF_MIPS_NOSTRIP 0x08000000
428 /* This section is local to threads. */
429 #define SHF_MIPS_LOCAL 0x04000000
431 /* Linker should generate implicit weak names for this section. */
432 #define SHF_MIPS_NAMES 0x02000000
434 /* Processor specific program header types. */
436 /* Register usage information. Identifies one .reginfo section. */
437 #define PT_MIPS_REGINFO 0x70000000
439 /* Runtime procedure table. */
440 #define PT_MIPS_RTPROC 0x70000001
442 /* Options (for what ???). */
443 #define PT_MIPS_OPTIONS 0x70000002
445 /* Processor specific dynamic array tags. */
447 /* 32 bit version number for runtime linker interface. */
448 #define DT_MIPS_RLD_VERSION 0x70000001
451 #define DT_MIPS_TIME_STAMP 0x70000002
453 /* Checksum of external strings and common sizes. */
454 #define DT_MIPS_ICHECKSUM 0x70000003
456 /* Index of version string in string table. */
457 #define DT_MIPS_IVERSION 0x70000004
459 /* 32 bits of flags. */
460 #define DT_MIPS_FLAGS 0x70000005
462 /* Base address of the segment. */
463 #define DT_MIPS_BASE_ADDRESS 0x70000006
466 #define DT_MIPS_MSYM 0x70000007
468 /* Address of .conflict section. */
469 #define DT_MIPS_CONFLICT 0x70000008
471 /* Address of .liblist section. */
472 #define DT_MIPS_LIBLIST 0x70000009
474 /* Number of local global offset table entries. */
475 #define DT_MIPS_LOCAL_GOTNO 0x7000000a
477 /* Number of entries in the .conflict section. */
478 #define DT_MIPS_CONFLICTNO 0x7000000b
480 /* Number of entries in the .liblist section. */
481 #define DT_MIPS_LIBLISTNO 0x70000010
483 /* Number of entries in the .dynsym section. */
484 #define DT_MIPS_SYMTABNO 0x70000011
486 /* Index of first external dynamic symbol not referenced locally. */
487 #define DT_MIPS_UNREFEXTNO 0x70000012
489 /* Index of first dynamic symbol in global offset table. */
490 #define DT_MIPS_GOTSYM 0x70000013
492 /* Number of page table entries in global offset table. */
493 #define DT_MIPS_HIPAGENO 0x70000014
495 /* Address of run time loader map, used for debugging. */
496 #define DT_MIPS_RLD_MAP 0x70000016
498 /* Delta C++ class definition. */
499 #define DT_MIPS_DELTA_CLASS 0x70000017
501 /* Number of entries in DT_MIPS_DELTA_CLASS. */
502 #define DT_MIPS_DELTA_CLASS_NO 0x70000018
504 /* Delta C++ class instances. */
505 #define DT_MIPS_DELTA_INSTANCE 0x70000019
507 /* Number of entries in DT_MIPS_DELTA_INSTANCE. */
508 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a
510 /* Delta relocations. */
511 #define DT_MIPS_DELTA_RELOC 0x7000001b
513 /* Number of entries in DT_MIPS_DELTA_RELOC. */
514 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c
516 /* Delta symbols that Delta relocations refer to. */
517 #define DT_MIPS_DELTA_SYM 0x7000001d
519 /* Number of entries in DT_MIPS_DELTA_SYM. */
520 #define DT_MIPS_DELTA_SYM_NO 0x7000001e
522 /* Delta symbols that hold class declarations. */
523 #define DT_MIPS_DELTA_CLASSSYM 0x70000020
525 /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */
526 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021
528 /* Flags indicating information about C++ flavor. */
529 #define DT_MIPS_CXX_FLAGS 0x70000022
531 /* Pixie information (???). */
532 #define DT_MIPS_PIXIE_INIT 0x70000023
535 #define DT_MIPS_SYMBOL_LIB 0x70000024
538 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025
541 #define DT_MIPS_LOCAL_GOTIDX 0x70000026
544 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027
547 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028
549 /* Address of `.MIPS.options'. */
550 #define DT_MIPS_OPTIONS 0x70000029
552 /* Address of `.interface'. */
553 #define DT_MIPS_INTERFACE 0x7000002a
556 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b
558 /* Size of the .interface section. */
559 #define DT_MIPS_INTERFACE_SIZE 0x7000002c
561 /* Size of rld_text_resolve function stored in the GOT. */
562 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d
564 /* Default suffix of DSO to be added by rld on dlopen() calls. */
565 #define DT_MIPS_PERF_SUFFIX 0x7000002e
567 /* Size of compact relocation section (O32). */
568 #define DT_MIPS_COMPACT_SIZE 0x7000002f
570 /* GP value for auxiliary GOTs. */
571 #define DT_MIPS_GP_VALUE 0x70000030
573 /* Address of auxiliary .dynamic. */
574 #define DT_MIPS_AUX_DYNAMIC 0x70000031
576 /* Flags which may appear in a DT_MIPS_FLAGS entry. */
579 #define RHF_NONE 0x00000000
581 /* Uses shortcut pointers. */
582 #define RHF_QUICKSTART 0x00000001
584 /* Hash size is not a power of two. */
585 #define RHF_NOTPOT 0x00000002
587 /* Ignore LD_LIBRARY_PATH. */
588 #define RHS_NO_LIBRARY_REPLACEMENT \
591 /* Special values for the st_other field in the symbol table. These
592 are used in an Irix 5 dynamic symbol table. */
594 #define STO_DEFAULT 0x00
595 #define STO_INTERNAL 0x01
596 #define STO_HIDDEN 0x02
597 #define STO_PROTECTED 0x03
599 /* start-sanitize-sky */
600 /* These values are used for the dvp. */
601 #define STO_DVP_DMA 0xe8
602 #define STO_DVP_VIF 0xe9
603 #define STO_DVP_GIF 0xea
604 #define STO_DVP_VU 0xeb
605 /* Reserve a couple in case we need them. */
606 #define STO_DVP_RES1 0xec
607 #define STO_DVP_RES2 0xed
608 #define STO_DVP_P(sto) ((sto) >= STO_DVP_DMA && (sto) <= STO_DVP_RES2)
610 /* end-sanitize-sky */
611 /* This value is used for a mips16 .text symbol. */
612 #define STO_MIPS16 0xf0
614 /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each
615 relocation entry specifies up to three actual relocations, all at
616 the same address. The first relocation which required a symbol
617 uses the symbol in the r_sym field. The second relocation which
618 requires a symbol uses the symbol in the r_ssym field. If all
619 three relocations require a symbol, the third one uses a zero
622 /* An entry in a 64 bit SHT_REL section. */
626 /* Address of relocation. */
627 unsigned char r_offset[8];
629 unsigned char r_sym[4];
630 /* Special symbol. */
631 unsigned char r_ssym[1];
632 /* Third relocation. */
633 unsigned char r_type3[1];
634 /* Second relocation. */
635 unsigned char r_type2[1];
636 /* First relocation. */
637 unsigned char r_type[1];
638 } Elf64_Mips_External_Rel;
642 /* Address of relocation. */
646 /* Special symbol. */
647 unsigned char r_ssym;
648 /* Third relocation. */
649 unsigned char r_type3;
650 /* Second relocation. */
651 unsigned char r_type2;
652 /* First relocation. */
653 unsigned char r_type;
654 } Elf64_Mips_Internal_Rel;
656 /* An entry in a 64 bit SHT_RELA 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];
673 unsigned char r_addend[8];
674 } Elf64_Mips_External_Rela;
678 /* Address of relocation. */
682 /* Special symbol. */
683 unsigned char r_ssym;
684 /* Third relocation. */
685 unsigned char r_type3;
686 /* Second relocation. */
687 unsigned char r_type2;
688 /* First relocation. */
689 unsigned char r_type;
691 bfd_signed_vma r_addend;
692 } Elf64_Mips_Internal_Rela;
694 /* Values found in the r_ssym field of a relocation entry. */
702 /* Value of GP in object being relocated. */
705 /* Address of location being relocated. */
708 /* A SHT_MIPS_OPTIONS section contains a series of options, each of
709 which starts with this header. */
713 /* Type of option. */
714 unsigned char kind[1];
715 /* Size of option descriptor, including header. */
716 unsigned char size[1];
717 /* Section index of affected section, or 0 for global option. */
718 unsigned char section[2];
719 /* Information specific to this kind of option. */
720 unsigned char info[4];
721 } Elf_External_Options;
725 /* Type of option. */
727 /* Size of option descriptor, including header. */
729 /* Section index of affected section, or 0 for global option. */
730 unsigned short section;
731 /* Information specific to this kind of option. */
733 } Elf_Internal_Options;
735 /* MIPS ELF option header swapping routines. */
736 extern void bfd_mips_elf_swap_options_in
737 PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *));
738 extern void bfd_mips_elf_swap_options_out
739 PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *));
741 /* Values which may appear in the kind field of an Elf_Options
747 /* Register usage and GP value. */
748 #define ODK_REGINFO 1
750 /* Exception processing information. */
751 #define ODK_EXCEPTIONS 2
753 /* Section padding information. */
756 /* Hardware workarounds performed. */
757 #define ODK_HWPATCH 4
759 /* Fill value used by the linker. */
762 /* Reserved space for desktop tools. */
765 /* Hardware workarounds, AND bits when merging. */
768 /* Hardware workarounds, OR bits when merging. */
771 /* GP group to use for text/data sections. */
772 #define ODK_GP_GROUP 9
774 /* ID information. */
777 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
778 structure. In the 64 bit ABI, it is the following structure. The
779 info field of the options header is not used. */
783 /* Mask of general purpose registers used. */
784 unsigned char ri_gprmask[4];
786 unsigned char ri_pad[4];
787 /* Mask of co-processor registers used. */
788 unsigned char ri_cprmask[4][4];
789 /* GP register value for this object file. */
790 unsigned char ri_gp_value[8];
791 } Elf64_External_RegInfo;
795 /* Mask of general purpose registers used. */
796 unsigned long ri_gprmask;
798 unsigned long ri_pad;
799 /* Mask of co-processor registers used. */
800 unsigned long ri_cprmask[4];
801 /* GP register value for this object file. */
803 } Elf64_Internal_RegInfo;
805 /* MIPS ELF reginfo swapping routines. */
806 extern void bfd_mips_elf64_swap_reginfo_in
807 PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *));
808 extern void bfd_mips_elf64_swap_reginfo_out
809 PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *));
811 /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */
812 #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */
813 #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */
814 #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */
815 #define OEX_SMM 0x20000 /* Force sequential memory mode. */
816 #define OEX_FPDBUG 0x40000 /* Force floating-point debug mode. */
817 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */
819 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */
820 #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */
821 #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */
822 #define OEX_FPU_OFLO 0x04 /* Overflow exception. */
823 #define OEX_FPU_UFLO 0x02 /* Underflow exception. */
824 #define OEX_FPU_INEX 0x01 /* Inexact exception. */
826 /* Masks for the info word of an ODK_PAD descriptor. */
827 #define OPAD_PREFIX 0x01
828 #define OPAD_POSTFIX 0x02
829 #define OPAD_SYMBOL 0x04
831 /* Masks for the info word of an ODK_HWPATCH descriptor. */
832 #define OHW_R4KEOP 0x01 /* R4000 end-of-page patch. */
833 #define OHW_R8KPFETCH 0x02 /* May need R8000 prefetch patch. */
834 #define OHW_R5KEOP 0x04 /* R5000 end-of-page patch. */
835 #define OHW_R5KCVTL 0x08 /* R5000 cvt.[ds].l bug (clean == 1). */
837 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */
838 #define OGP_GROUP 0x0000ffff /* GP group number. */
839 #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */
841 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */
842 #define OHWA0_R4KEOP_CHECKED 0x00000001
843 #define OHWA0_R4KEOP_CLEAN 0x00000002
845 /* start-sanitize-sky */
846 /* The vu overlay table is an array of this. */
850 /* `name' is offset into overlay string table section. */
854 } Elf32_Dvp_External_Overlay;
861 } Elf32_Dvp_Internal_Overlay;
863 /* overlay swapping routines. */
864 extern void bfd_dvp_elf32_swap_overlay_in
865 PARAMS ((bfd *, const Elf32_Dvp_External_Overlay *,
866 Elf32_Dvp_Internal_Overlay *));
867 extern void bfd_dvp_elf32_swap_overlay_out
868 PARAMS ((bfd *, const Elf32_Dvp_Internal_Overlay *,
869 Elf32_Dvp_External_Overlay *));
871 /* end-sanitize-sky */
873 #endif /* _ELF_MIPS_H */