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