include/elf/mips.h

   1 /* MIPS ELF support for BFD.
   2    Copyright (C) 1993, 1994, 1995, 1996, 1998 Free Software Foundation, Inc.
   3
   4    By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
   5    information in the System V Application Binary Interface, MIPS
   6    Processor Supplement.
   7
   8 This file is part of BFD, the Binary File Descriptor library.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 /* This file holds definitions specific to the MIPS ELF ABI.  Note
  25    that most of this is not actually implemented by BFD.  */
  26
  27 #ifndef _ELF_MIPS_H
  28 #define _ELF_MIPS_H
  29
  30 /* Unless otherwise told we define an enum with the relocation entries.  */
  31 #ifndef START_RELOC_NUMBERS
  32 # define START_RELOC_NUMBERS(name)   enum name {
  33 # define RELOC_NUMBER(name, number)  name = number ,
  34 # define END_RELOC_NUMBERS           };
  35 #endif
  36
  37 /* Relocation types.  */
  38 START_RELOC_NUMBERS (elf_mips_reloc_type)
  39   RELOC_NUMBER (R_MIPS_NONE, 0)
  40   RELOC_NUMBER (R_MIPS_16, 1)
  41   RELOC_NUMBER (R_MIPS_32, 2)
  42   RELOC_NUMBER (R_MIPS_REL32, 3)
  43   RELOC_NUMBER (R_MIPS_26, 4)
  44   RELOC_NUMBER (R_MIPS_HI16, 5)
  45   RELOC_NUMBER (R_MIPS_LO16, 6)
  46   RELOC_NUMBER (R_MIPS_GPREL16, 7)
  47   RELOC_NUMBER (R_MIPS_LITERAL, 8)
  48   RELOC_NUMBER (R_MIPS_GOT16, 9)
  49   RELOC_NUMBER (R_MIPS_PC16, 10)
  50   RELOC_NUMBER (R_MIPS_CALL16, 11)
  51   RELOC_NUMBER (R_MIPS_GPREL32, 12)
  52   /* The remaining relocs are defined on Irix, although they are not
  53      in the MIPS ELF ABI.  */
  54   RELOC_NUMBER (R_MIPS_UNUSED1, 13)
  55   RELOC_NUMBER (R_MIPS_UNUSED2, 14)
  56   RELOC_NUMBER (R_MIPS_UNUSED3, 15)
  57   RELOC_NUMBER (R_MIPS_SHIFT5, 16)
  58   RELOC_NUMBER (R_MIPS_SHIFT6, 17)
  59   RELOC_NUMBER (R_MIPS_64, 18)
  60   RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
  61   RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
  62   RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
  63   RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
  64   RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
  65   RELOC_NUMBER (R_MIPS_SUB, 24)
  66   RELOC_NUMBER (R_MIPS_INSERT_A, 25)
  67   RELOC_NUMBER (R_MIPS_INSERT_B, 26)
  68   RELOC_NUMBER (R_MIPS_DELETE, 27)
  69   RELOC_NUMBER (R_MIPS_HIGHER, 28)
  70   RELOC_NUMBER (R_MIPS_HIGHEST, 29)
  71   RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
  72   RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
  73 /* start-sanitize-r5900 */
  74   /* This is used by a mips co-processor instruction.  */
  75   RELOC_NUMBER (R_MIPS15_S3, 32)
  76 /* end-sanitize-r5900 */
  77   RELOC_NUMBER (R_MIPS_max, 33)
  78   /* These relocs are used for the mips16.  */
  79   RELOC_NUMBER (R_MIPS16_26, 100)
  80   RELOC_NUMBER (R_MIPS16_GPREL, 101)
  81 /* start-sanitize-sky */
  82   /* These relocs are for the dvp.  */
  83   RELOC_NUMBER (R_MIPS_DVP_11_PCREL, 120)
  84   RELOC_NUMBER (R_MIPS_DVP_27_S4, 121)
  85   RELOC_NUMBER (R_MIPS_DVP_11_S4, 122)
  86   RELOC_NUMBER (R_MIPS_DVP_U15_S3, 123)
  87 /* end-sanitize-sky */
  88   /* These are GNU extensions to enable C++ vtable garbage collection.  */
  89   RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
  90   RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
  91 END_RELOC_NUMBERS
  92
  93 /* Processor specific flags for the ELF header e_flags field.  */
  94
  95 /* At least one .noreorder directive appears in the source.  */
  96 #define EF_MIPS_NOREORDER       0x00000001
  97
  98 /* File contains position independent code.  */
  99 #define EF_MIPS_PIC             0x00000002
 100
 101 /* Code in file uses the standard calling sequence for calling
 102    position independent code.  */
 103 #define EF_MIPS_CPIC            0x00000004
 104
 105 /* Code in file uses new ABI (-n32 on Irix 6).  */
 106 #define EF_MIPS_ABI2            0x00000020
 107
 108 /* Four bit MIPS architecture field.  */
 109 #define EF_MIPS_ARCH            0xf0000000
 110
 111 /* -mips1 code.  */
 112 #define E_MIPS_ARCH_1           0x00000000
 113
 114 /* -mips2 code.  */
 115 #define E_MIPS_ARCH_2           0x10000000
 116
 117 /* -mips3 code.  */
 118 #define E_MIPS_ARCH_3           0x20000000
 119
 120 /* -mips4 code.  */
 121 #define E_MIPS_ARCH_4           0x30000000
 122
 123 /* Machine variant if we know it.  This field was invented at Cygnus,
 124    but it is hoped that other vendors will adopt it.  If some standard
 125    is developed, this code should be changed to follow it. */
 126
 127 #define EF_MIPS_MACH            0x00FF0000
 128
 129 /* Cygnus is choosing values between 80 and 9F;
 130    00 - 7F should be left for a future standard;
 131    the rest are open. */
 132
 133 #define E_MIPS_MACH_3900        0x00810000
 134
 135 #define E_MIPS_MACH_4010        0x00820000
 136 #define E_MIPS_MACH_4100        0x00830000
 137 /* start-sanitize-vr4320 */
 138 #define E_MIPS_MACH_4320        0x00840000
 139 /* end-sanitize-vr4320 */
 140 #define E_MIPS_MACH_4650        0x00850000
 141 /* start-sanitize-tx49 */
 142 #define E_MIPS_MACH_4900        0x00860000
 143 /* end-sanitize-tx49 */
 144
 145 /* start-sanitize-vr5400 */
 146 #define E_MIPS_MACH_5400        0x00910000
 147 /* end-sanitize-vr5400 */
 148 /* start-sanitize-r5900 */
 149 #define E_MIPS_MACH_5900        0x00920000
 150 /* end-sanitize-r5900 */
 151 \f
 152 /* Processor specific section indices.  These sections do not actually
 153    exist.  Symbols with a st_shndx field corresponding to one of these
 154    values have a special meaning.  */
 155
 156 /* Defined and allocated common symbol.  Value is virtual address.  If
 157    relocated, alignment must be preserved.  */
 158 #define SHN_MIPS_ACOMMON        0xff00
 159
 160 /* Defined and allocated text symbol.  Value is virtual address.
 161    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
 162 #define SHN_MIPS_TEXT           0xff01
 163
 164 /* Defined and allocated data symbol.  Value is virtual address.
 165    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
 166 #define SHN_MIPS_DATA           0xff02
 167
 168 /* Small common symbol.  */
 169 #define SHN_MIPS_SCOMMON        0xff03
 170
 171 /* Small undefined symbol.  */
 172 #define SHN_MIPS_SUNDEFINED     0xff04
 173 \f
 174 /* Processor specific section types.  */
 175
 176 /* Section contains the set of dynamic shared objects used when
 177    statically linking.  */
 178 #define SHT_MIPS_LIBLIST        0x70000000
 179
 180 /* I'm not sure what this is, but it's used on Irix 5.  */
 181 #define SHT_MIPS_MSYM           0x70000001
 182
 183 /* Section contains list of symbols whose definitions conflict with
 184    symbols defined in shared objects.  */
 185 #define SHT_MIPS_CONFLICT       0x70000002
 186
 187 /* Section contains the global pointer table.  */
 188 #define SHT_MIPS_GPTAB          0x70000003
 189
 190 /* Section contains microcode information.  The exact format is
 191    unspecified.  */
 192 #define SHT_MIPS_UCODE          0x70000004
 193
 194 /* Section contains some sort of debugging information.  The exact
 195    format is unspecified.  It's probably ECOFF symbols.  */
 196 #define SHT_MIPS_DEBUG          0x70000005
 197
 198 /* Section contains register usage information.  */
 199 #define SHT_MIPS_REGINFO        0x70000006
 200
 201 /* ??? */
 202 #define SHT_MIPS_PACKAGE        0x70000007
 203
 204 /* ??? */
 205 #define SHT_MIPS_PACKSYM        0x70000008
 206
 207 /* ??? */
 208 #define SHT_MIPS_RELD           0x70000009
 209
 210 /* Section contains interface information.  */
 211 #define SHT_MIPS_IFACE          0x7000000b
 212
 213 /* Section contains description of contents of another section.  */
 214 #define SHT_MIPS_CONTENT        0x7000000c
 215
 216 /* Section contains miscellaneous options.  */
 217 #define SHT_MIPS_OPTIONS        0x7000000d
 218
 219 /* ??? */
 220 #define SHT_MIPS_SHDR           0x70000010
 221
 222 /* ??? */
 223 #define SHT_MIPS_FDESC          0x70000011
 224
 225 /* ??? */
 226 #define SHT_MIPS_EXTSYM         0x70000012
 227
 228 /* ??? */
 229 #define SHT_MIPS_DENSE          0x70000013
 230
 231 /* ??? */
 232 #define SHT_MIPS_PDESC          0x70000014
 233
 234 /* ??? */
 235 #define SHT_MIPS_LOCSYM         0x70000015
 236
 237 /* ??? */
 238 #define SHT_MIPS_AUXSYM         0x70000016
 239
 240 /* ??? */
 241 #define SHT_MIPS_OPTSYM         0x70000017
 242
 243 /* ??? */
 244 #define SHT_MIPS_LOCSTR         0x70000018
 245
 246 /* ??? */
 247 #define SHT_MIPS_LINE           0x70000019
 248
 249 /* ??? */
 250 #define SHT_MIPS_RFDESC         0x7000001a
 251
 252 /* ??? */
 253 #define SHT_MIPS_DELTASYM       0x7000001b
 254
 255 /* ??? */
 256 #define SHT_MIPS_DELTAINST      0x7000001c
 257
 258 /* ??? */
 259 #define SHT_MIPS_DELTACLASS     0x7000001d
 260
 261 /* DWARF debugging section.  */
 262 #define SHT_MIPS_DWARF          0x7000001e
 263
 264 /* ??? */
 265 #define SHT_MIPS_DELTADECL      0x7000001f
 266
 267 /* List of libraries the binary depends on.  Includes a time stamp, version
 268    number.  */
 269 #define SHT_MIPS_SYMBOL_LIB     0x70000020
 270
 271 /* Events section.  */
 272 #define SHT_MIPS_EVENTS         0x70000021
 273
 274 /* ??? */
 275 #define SHT_MIPS_TRANSLATE      0x70000022
 276
 277 /* ??? */
 278 #define SHT_MIPS_PIXIE          0x70000023
 279
 280 /* ??? */
 281 #define SHT_MIPS_XLATE          0x70000024
 282
 283 /* ??? */
 284 #define SHT_MIPS_XLATE_DEBUG    0x70000025
 285
 286 /* ??? */
 287 #define SHT_MIPS_WHIRL          0x70000026
 288
 289 /* ??? */
 290 #define SHT_MIPS_EH_REGION      0x70000027
 291
 292 /* ??? */
 293 #define SHT_MIPS_XLATE_OLD      0x70000028
 294
 295 /* ??? */
 296 #define SHT_MIPS_PDR_EXCEPTION  0x70000029
 297
 298 /* start-sanitize-sky */
 299 /* The VU overlay table.  */
 300 #define SHT_DVP_OVERLAY_TABLE           0x7ffff420
 301 #define SHNAME_DVP_OVERLAY_TABLE        ".DVP.ovlytab"
 302 #define SHNAME_DVP_OVERLAY_STRTAB       ".DVP.ovlystrtab"
 303 /* A VU overlay.  */
 304 #define SHT_DVP_OVERLAY                 0x7ffff421
 305 /* Prefix of VU overlay sections.  */
 306 #define SHNAME_DVP_OVERLAY_PREFIX       ".DVP.overlay."
 307 /* end-sanitize-sky */
 308
 309 /* A section of type SHT_MIPS_LIBLIST contains an array of the
 310    following structure.  The sh_link field is the section index of the
 311    string table.  The sh_info field is the number of entries in the
 312    section.  */
 313 typedef struct
 314 {
 315   /* String table index for name of shared object.  */
 316   unsigned long l_name;
 317   /* Time stamp.  */
 318   unsigned long l_time_stamp;
 319   /* Checksum of symbol names and common sizes.  */
 320   unsigned long l_checksum;
 321   /* String table index for version.  */
 322   unsigned long l_version;
 323   /* Flags.  */
 324   unsigned long l_flags;
 325 } Elf32_Lib;
 326
 327 /* The external version of Elf32_Lib.  */
 328 typedef struct
 329 {
 330   unsigned char l_name[4];
 331   unsigned char l_time_stamp[4];
 332   unsigned char l_checksum[4];
 333   unsigned char l_version[4];
 334   unsigned char l_flags[4];
 335 } Elf32_External_Lib;
 336
 337 /* The l_flags field of an Elf32_Lib structure may contain the
 338    following flags.  */
 339
 340 /* Require an exact match at runtime.  */
 341 #define LL_EXACT_MATCH          0x00000001
 342
 343 /* Ignore version incompatibilities at runtime.  */
 344 #define LL_IGNORE_INT_VER       0x00000002
 345
 346 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the
 347    .dynsym section.  Each element has the following type.  */
 348 typedef unsigned long Elf32_Conflict;
 349
 350 /* A section of type SHT_MIPS_GPTAB contains information about how
 351    much GP space would be required for different -G arguments.  This
 352    information is only used so that the linker can provide informative
 353    suggestions as to the best -G value to use.  The sh_info field is
 354    the index of the section for which this information applies.  The
 355    contents of the section are an array of the following union.  The
 356    first element uses the gt_header field.  The remaining elements use
 357    the gt_entry field.  */
 358 typedef union
 359 {
 360   struct
 361     {
 362       /* -G value actually used for this object file.  */
 363       unsigned long gt_current_g_value;
 364       /* Unused.  */
 365       unsigned long gt_unused;
 366     } gt_header;
 367   struct
 368     {
 369       /* If this -G argument has been used...  */
 370       unsigned long gt_g_value;
 371       /* ...this many GP section bytes would be required.  */
 372       unsigned long gt_bytes;
 373     } gt_entry;
 374 } Elf32_gptab;
 375
 376 /* The external version of Elf32_gptab.  */
 377
 378 typedef union
 379 {
 380   struct
 381     {
 382       unsigned char gt_current_g_value[4];
 383       unsigned char gt_unused[4];
 384     } gt_header;
 385   struct
 386     {
 387       unsigned char gt_g_value[4];
 388       unsigned char gt_bytes[4];
 389     } gt_entry;
 390 } Elf32_External_gptab;
 391
 392 /* A section of type SHT_MIPS_REGINFO contains the following
 393    structure.  */
 394 typedef struct
 395 {
 396   /* Mask of general purpose registers used.  */
 397   unsigned long ri_gprmask;
 398   /* Mask of co-processor registers used.  */
 399   unsigned long ri_cprmask[4];
 400   /* GP register value for this object file.  */
 401   long ri_gp_value;
 402 } Elf32_RegInfo;
 403
 404 /* The external version of the Elf_RegInfo structure.  */
 405 typedef struct
 406 {
 407   unsigned char ri_gprmask[4];
 408   unsigned char ri_cprmask[4][4];
 409   unsigned char ri_gp_value[4];
 410 } Elf32_External_RegInfo;
 411
 412 /* MIPS ELF .reginfo swapping routines.  */
 413 extern void bfd_mips_elf32_swap_reginfo_in
 414   PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *));
 415 extern void bfd_mips_elf32_swap_reginfo_out
 416   PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *));
 417 \f
 418 /* Processor specific section flags.  */
 419
 420 /* This section must be in the global data area.  */
 421 #define SHF_MIPS_GPREL          0x10000000
 422
 423 /* This section should be merged.  */
 424 #define SHF_MIPS_MERGE          0x20000000
 425
 426 /* This section contains 32 bit addresses.  */
 427 #define SHF_MIPS_ADDR32         0x40000000
 428
 429 /* This section contains 64 bit addresses.  */
 430 #define SHF_MIPS_ADDR64         0x80000000
 431
 432 /* This section may not be stripped.  */
 433 #define SHF_MIPS_NOSTRIP        0x08000000
 434
 435 /* This section is local to threads.  */
 436 #define SHF_MIPS_LOCAL          0x04000000
 437
 438 /* Linker should generate implicit weak names for this section.  */
 439 #define SHF_MIPS_NAMES          0x02000000
 440 \f
 441 /* Processor specific program header types.  */
 442
 443 /* Register usage information.  Identifies one .reginfo section.  */
 444 #define PT_MIPS_REGINFO         0x70000000
 445
 446 /* Runtime procedure table.  */
 447 #define PT_MIPS_RTPROC          0x70000001
 448
 449 /* Options (for what ???).  */
 450 #define PT_MIPS_OPTIONS         0x70000002
 451 \f
 452 /* Processor specific dynamic array tags.  */
 453
 454 /* 32 bit version number for runtime linker interface.  */
 455 #define DT_MIPS_RLD_VERSION     0x70000001
 456
 457 /* Time stamp.  */
 458 #define DT_MIPS_TIME_STAMP      0x70000002
 459
 460 /* Checksum of external strings and common sizes.  */
 461 #define DT_MIPS_ICHECKSUM       0x70000003
 462
 463 /* Index of version string in string table.  */
 464 #define DT_MIPS_IVERSION        0x70000004
 465
 466 /* 32 bits of flags.  */
 467 #define DT_MIPS_FLAGS           0x70000005
 468
 469 /* Base address of the segment.  */
 470 #define DT_MIPS_BASE_ADDRESS    0x70000006
 471
 472 /* ??? */
 473 #define DT_MIPS_MSYM            0x70000007
 474
 475 /* Address of .conflict section.  */
 476 #define DT_MIPS_CONFLICT        0x70000008
 477
 478 /* Address of .liblist section.  */
 479 #define DT_MIPS_LIBLIST         0x70000009
 480
 481 /* Number of local global offset table entries.  */
 482 #define DT_MIPS_LOCAL_GOTNO     0x7000000a
 483
 484 /* Number of entries in the .conflict section.  */
 485 #define DT_MIPS_CONFLICTNO      0x7000000b
 486
 487 /* Number of entries in the .liblist section.  */
 488 #define DT_MIPS_LIBLISTNO       0x70000010
 489
 490 /* Number of entries in the .dynsym section.  */
 491 #define DT_MIPS_SYMTABNO        0x70000011
 492
 493 /* Index of first external dynamic symbol not referenced locally.  */
 494 #define DT_MIPS_UNREFEXTNO      0x70000012
 495
 496 /* Index of first dynamic symbol in global offset table.  */
 497 #define DT_MIPS_GOTSYM          0x70000013
 498
 499 /* Number of page table entries in global offset table.  */
 500 #define DT_MIPS_HIPAGENO        0x70000014
 501
 502 /* Address of run time loader map, used for debugging.  */
 503 #define DT_MIPS_RLD_MAP         0x70000016
 504
 505 /* Delta C++ class definition.  */
 506 #define DT_MIPS_DELTA_CLASS     0x70000017
 507
 508 /* Number of entries in DT_MIPS_DELTA_CLASS.  */
 509 #define DT_MIPS_DELTA_CLASS_NO  0x70000018
 510
 511 /* Delta C++ class instances.  */
 512 #define DT_MIPS_DELTA_INSTANCE  0x70000019
 513
 514 /* Number of entries in DT_MIPS_DELTA_INSTANCE.  */
 515 #define DT_MIPS_DELTA_INSTANCE_NO       0x7000001a
 516
 517 /* Delta relocations.  */
 518 #define DT_MIPS_DELTA_RELOC     0x7000001b
 519
 520 /* Number of entries in DT_MIPS_DELTA_RELOC.  */
 521 #define DT_MIPS_DELTA_RELOC_NO  0x7000001c
 522
 523 /* Delta symbols that Delta relocations refer to.  */
 524 #define DT_MIPS_DELTA_SYM       0x7000001d
 525
 526 /* Number of entries in DT_MIPS_DELTA_SYM.  */
 527 #define DT_MIPS_DELTA_SYM_NO    0x7000001e
 528
 529 /* Delta symbols that hold class declarations.  */
 530 #define DT_MIPS_DELTA_CLASSSYM  0x70000020
 531
 532 /* Number of entries in DT_MIPS_DELTA_CLASSSYM.  */
 533 #define DT_MIPS_DELTA_CLASSSYM_NO       0x70000021
 534
 535 /* Flags indicating information about C++ flavor.  */
 536 #define DT_MIPS_CXX_FLAGS       0x70000022
 537
 538 /* Pixie information (???).  */
 539 #define DT_MIPS_PIXIE_INIT      0x70000023
 540
 541 /* ??? */
 542 #define DT_MIPS_SYMBOL_LIB      0x70000024
 543
 544 /* ??? */
 545 #define DT_MIPS_LOCALPAGE_GOTIDX        0x70000025
 546
 547 /* ??? */
 548 #define DT_MIPS_LOCAL_GOTIDX    0x70000026
 549
 550 /* ??? */
 551 #define DT_MIPS_HIDDEN_GOTIDX   0x70000027
 552
 553 /* ??? */
 554 #define DT_MIPS_PROTECTED_GOTIDX        0x70000028
 555
 556 /* Address of `.MIPS.options'.  */
 557 #define DT_MIPS_OPTIONS         0x70000029
 558
 559 /* Address of `.interface'.  */
 560 #define DT_MIPS_INTERFACE       0x7000002a
 561
 562 /* ??? */
 563 #define DT_MIPS_DYNSTR_ALIGN    0x7000002b
 564
 565 /* Size of the .interface section.  */
 566 #define DT_MIPS_INTERFACE_SIZE  0x7000002c
 567
 568 /* Size of rld_text_resolve function stored in the GOT.  */
 569 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR   0x7000002d
 570
 571 /* Default suffix of DSO to be added by rld on dlopen() calls.  */
 572 #define DT_MIPS_PERF_SUFFIX     0x7000002e
 573
 574 /* Size of compact relocation section (O32).  */
 575 #define DT_MIPS_COMPACT_SIZE    0x7000002f
 576
 577 /* GP value for auxiliary GOTs.  */
 578 #define DT_MIPS_GP_VALUE        0x70000030
 579
 580 /* Address of auxiliary .dynamic.  */
 581 #define DT_MIPS_AUX_DYNAMIC     0x70000031
 582 \f
 583 /* Flags which may appear in a DT_MIPS_FLAGS entry.  */
 584
 585 /* No flags.  */
 586 #define RHF_NONE                0x00000000
 587
 588 /* Uses shortcut pointers.  */
 589 #define RHF_QUICKSTART          0x00000001
 590
 591 /* Hash size is not a power of two.  */
 592 #define RHF_NOTPOT              0x00000002
 593
 594 /* Ignore LD_LIBRARY_PATH.  */
 595 #define RHS_NO_LIBRARY_REPLACEMENT \
 596                                 0x00000004
 597 \f
 598 /* Special values for the st_other field in the symbol table.  These
 599    are used in an Irix 5 dynamic symbol table.  */
 600
 601 #define STO_DEFAULT             0x00
 602 #define STO_INTERNAL            0x01
 603 #define STO_HIDDEN              0x02
 604 #define STO_PROTECTED           0x03
 605
 606 /* start-sanitize-sky */
 607 /* These values are used for the dvp.  */
 608 #define STO_DVP_DMA             0xe8
 609 #define STO_DVP_VIF             0xe9
 610 #define STO_DVP_GIF             0xea
 611 #define STO_DVP_VU              0xeb
 612 /* Reserve a couple in case we need them.  */
 613 #define STO_DVP_RES1            0xec
 614 #define STO_DVP_RES2            0xed
 615 #define STO_DVP_P(sto) ((sto) >= STO_DVP_DMA && (sto) <= STO_DVP_RES2)
 616
 617 /* end-sanitize-sky */
 618 /* This value is used for a mips16 .text symbol.  */
 619 #define STO_MIPS16              0xf0
 620 \f
 621 /* The 64-bit MIPS ELF ABI uses an unusual reloc format.  Each
 622    relocation entry specifies up to three actual relocations, all at
 623    the same address.  The first relocation which required a symbol
 624    uses the symbol in the r_sym field.  The second relocation which
 625    requires a symbol uses the symbol in the r_ssym field.  If all
 626    three relocations require a symbol, the third one uses a zero
 627    value.  */
 628
 629 /* An entry in a 64 bit SHT_REL section.  */
 630
 631 typedef struct
 632 {
 633   /* Address of relocation.  */
 634   unsigned char r_offset[8];
 635   /* Symbol index.  */
 636   unsigned char r_sym[4];
 637   /* Special symbol.  */
 638   unsigned char r_ssym[1];
 639   /* Third relocation.  */
 640   unsigned char r_type3[1];
 641   /* Second relocation.  */
 642   unsigned char r_type2[1];
 643   /* First relocation.  */
 644   unsigned char r_type[1];
 645 } Elf64_Mips_External_Rel;
 646
 647 typedef struct
 648 {
 649   /* Address of relocation.  */
 650   bfd_vma r_offset;
 651   /* Symbol index.  */
 652   unsigned long r_sym;
 653   /* Special symbol.  */
 654   unsigned char r_ssym;
 655   /* Third relocation.  */
 656   unsigned char r_type3;
 657   /* Second relocation.  */
 658   unsigned char r_type2;
 659   /* First relocation.  */
 660   unsigned char r_type;
 661 } Elf64_Mips_Internal_Rel;
 662
 663 /* An entry in a 64 bit SHT_RELA section.  */
 664
 665 typedef struct
 666 {
 667   /* Address of relocation.  */
 668   unsigned char r_offset[8];
 669   /* Symbol index.  */
 670   unsigned char r_sym[4];
 671   /* Special symbol.  */
 672   unsigned char r_ssym[1];
 673   /* Third relocation.  */
 674   unsigned char r_type3[1];
 675   /* Second relocation.  */
 676   unsigned char r_type2[1];
 677   /* First relocation.  */
 678   unsigned char r_type[1];
 679   /* Addend.  */
 680   unsigned char r_addend[8];
 681 } Elf64_Mips_External_Rela;
 682
 683 typedef struct
 684 {
 685   /* Address of relocation.  */
 686   bfd_vma r_offset;
 687   /* Symbol index.  */
 688   unsigned long r_sym;
 689   /* Special symbol.  */
 690   unsigned char r_ssym;
 691   /* Third relocation.  */
 692   unsigned char r_type3;
 693   /* Second relocation.  */
 694   unsigned char r_type2;
 695   /* First relocation.  */
 696   unsigned char r_type;
 697   /* Addend.  */
 698   bfd_signed_vma r_addend;
 699 } Elf64_Mips_Internal_Rela;
 700
 701 /* Values found in the r_ssym field of a relocation entry.  */
 702
 703 /* No relocation.  */
 704 #define RSS_UNDEF       0
 705
 706 /* Value of GP.  */
 707 #define RSS_GP          1
 708
 709 /* Value of GP in object being relocated.  */
 710 #define RSS_GP0         2
 711
 712 /* Address of location being relocated.  */
 713 #define RSS_LOC         3
 714 \f
 715 /* A SHT_MIPS_OPTIONS section contains a series of options, each of
 716    which starts with this header.  */
 717
 718 typedef struct
 719 {
 720   /* Type of option.  */
 721   unsigned char kind[1];
 722   /* Size of option descriptor, including header.  */
 723   unsigned char size[1];
 724   /* Section index of affected section, or 0 for global option.  */
 725   unsigned char section[2];
 726   /* Information specific to this kind of option.  */
 727   unsigned char info[4];
 728 } Elf_External_Options;
 729
 730 typedef struct
 731 {
 732   /* Type of option.  */
 733   unsigned char kind;
 734   /* Size of option descriptor, including header.  */
 735   unsigned char size;
 736   /* Section index of affected section, or 0 for global option.  */
 737   unsigned short section;
 738   /* Information specific to this kind of option.  */
 739   unsigned long info;
 740 } Elf_Internal_Options;
 741
 742 /* MIPS ELF option header swapping routines.  */
 743 extern void bfd_mips_elf_swap_options_in
 744   PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *));
 745 extern void bfd_mips_elf_swap_options_out
 746   PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *));
 747
 748 /* Values which may appear in the kind field of an Elf_Options
 749    structure.  */
 750
 751 /* Undefined.  */
 752 #define ODK_NULL        0
 753
 754 /* Register usage and GP value.  */
 755 #define ODK_REGINFO     1
 756
 757 /* Exception processing information.  */
 758 #define ODK_EXCEPTIONS  2
 759
 760 /* Section padding information.  */
 761 #define ODK_PAD         3
 762
 763 /* Hardware workarounds performed.  */
 764 #define ODK_HWPATCH     4
 765
 766 /* Fill value used by the linker.  */
 767 #define ODK_FILL        5
 768
 769 /* Reserved space for desktop tools.  */
 770 #define ODK_TAGS        6
 771
 772 /* Hardware workarounds, AND bits when merging.  */
 773 #define ODK_HWAND       7
 774
 775 /* Hardware workarounds, OR bits when merging.  */
 776 #define ODK_HWOR        8
 777
 778 /* GP group to use for text/data sections.  */
 779 #define ODK_GP_GROUP    9
 780
 781 /* ID information.  */
 782 #define ODK_IDENT       10
 783
 784 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
 785    structure.  In the 64 bit ABI, it is the following structure.  The
 786    info field of the options header is not used.  */
 787
 788 typedef struct
 789 {
 790   /* Mask of general purpose registers used.  */
 791   unsigned char ri_gprmask[4];
 792   /* Padding.  */
 793   unsigned char ri_pad[4];
 794   /* Mask of co-processor registers used.  */
 795   unsigned char ri_cprmask[4][4];
 796   /* GP register value for this object file.  */
 797   unsigned char ri_gp_value[8];
 798 } Elf64_External_RegInfo;
 799
 800 typedef struct
 801 {
 802   /* Mask of general purpose registers used.  */
 803   unsigned long ri_gprmask;
 804   /* Padding.  */
 805   unsigned long ri_pad;
 806   /* Mask of co-processor registers used.  */
 807   unsigned long ri_cprmask[4];
 808   /* GP register value for this object file.  */
 809   bfd_vma ri_gp_value;
 810 } Elf64_Internal_RegInfo;
 811
 812 /* MIPS ELF reginfo swapping routines.  */
 813 extern void bfd_mips_elf64_swap_reginfo_in
 814   PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *));
 815 extern void bfd_mips_elf64_swap_reginfo_out
 816   PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *));
 817
 818 /* Masks for the info work of an ODK_EXCEPTIONS descriptor.  */
 819 #define OEX_FPU_MIN     0x1f    /* FPEs which must be enabled.  */
 820 #define OEX_FPU_MAX     0x1f00  /* FPEs which may be enabled.  */
 821 #define OEX_PAGE0       0x10000 /* Page zero must be mapped.  */
 822 #define OEX_SMM         0x20000 /* Force sequential memory mode.  */
 823 #define OEX_FPDBUG      0x40000 /* Force floating-point debug mode.  */
 824 #define OEX_DISMISS     0x80000 /* Dismiss invalid address faults.  */
 825
 826 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX.  */
 827 #define OEX_FPU_INVAL   0x10    /* Invalid operation exception.  */
 828 #define OEX_FPU_DIV0    0x08    /* Division by zero exception.  */
 829 #define OEX_FPU_OFLO    0x04    /* Overflow exception.  */
 830 #define OEX_FPU_UFLO    0x02    /* Underflow exception.  */
 831 #define OEX_FPU_INEX    0x01    /* Inexact exception.  */
 832
 833 /* Masks for the info word of an ODK_PAD descriptor.  */
 834 #define OPAD_PREFIX     0x01
 835 #define OPAD_POSTFIX    0x02
 836 #define OPAD_SYMBOL     0x04
 837
 838 /* Masks for the info word of an ODK_HWPATCH descriptor.  */
 839 #define OHW_R4KEOP      0x01    /* R4000 end-of-page patch.  */
 840 #define OHW_R8KPFETCH   0x02    /* May need R8000 prefetch patch.  */
 841 #define OHW_R5KEOP      0x04    /* R5000 end-of-page patch.  */
 842 #define OHW_R5KCVTL     0x08    /* R5000 cvt.[ds].l bug (clean == 1).  */
 843
 844 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor.  */
 845 #define OGP_GROUP       0x0000ffff      /* GP group number.  */
 846 #define OGP_SELF        0xffff0000      /* Self-contained GP groups.  */
 847
 848 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor.  */
 849 #define OHWA0_R4KEOP_CHECKED    0x00000001
 850 #define OHWA0_R4KEOP_CLEAN      0x00000002
 851 \f
 852 /* start-sanitize-sky */
 853 /* The vu overlay table is an array of this.  */
 854
 855 typedef struct
 856 {
 857   /* `name' is offset into overlay string table section.  */
 858   char name[4];
 859   char lma[4];
 860   char vma[4];
 861 } Elf32_Dvp_External_Overlay;
 862
 863 typedef struct
 864 {
 865   bfd_vma name;
 866   bfd_vma lma;
 867   bfd_vma vma;
 868 } Elf32_Dvp_Internal_Overlay;
 869
 870 /* overlay swapping routines.  */
 871 extern void bfd_dvp_elf32_swap_overlay_in
 872   PARAMS ((bfd *, const Elf32_Dvp_External_Overlay *,
 873            Elf32_Dvp_Internal_Overlay *));
 874 extern void bfd_dvp_elf32_swap_overlay_out
 875   PARAMS ((bfd *, const Elf32_Dvp_Internal_Overlay *,
 876            Elf32_Dvp_External_Overlay *));
 877
 878 /* end-sanitize-sky */
 879
 880 #endif /* _ELF_MIPS_H */