include/elf/mips.h

   1 /* MIPS ELF support for BFD.
   2    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
   3    2003, 2004, 2005, 2008, 2009, 2010, 2013
   4    Free Software Foundation, Inc.
   5
   6    By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
   7    information in the System V Application Binary Interface, MIPS
   8    Processor Supplement.
   9
  10    This file is part of BFD, the Binary File Descriptor library.
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program; if not, write to the Free Software
  24    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  25    MA 02110-1301, USA.  */
  26
  27 /* This file holds definitions specific to the MIPS ELF ABI.  Note
  28    that most of this is not actually implemented by BFD.  */
  29
  30 #ifndef _ELF_MIPS_H
  31 #define _ELF_MIPS_H
  32
  33 #include "elf/reloc-macros.h"
  34
  35 /* Relocation types.  */
  36 START_RELOC_NUMBERS (elf_mips_reloc_type)
  37   RELOC_NUMBER (R_MIPS_NONE, 0)
  38   RELOC_NUMBER (R_MIPS_16, 1)
  39   RELOC_NUMBER (R_MIPS_32, 2)           /* In Elf 64: alias R_MIPS_ADD */
  40   RELOC_NUMBER (R_MIPS_REL32, 3)        /* In Elf 64: alias R_MIPS_REL */
  41   RELOC_NUMBER (R_MIPS_26, 4)
  42   RELOC_NUMBER (R_MIPS_HI16, 5)
  43   RELOC_NUMBER (R_MIPS_LO16, 6)
  44   RELOC_NUMBER (R_MIPS_GPREL16, 7)      /* In Elf 64: alias R_MIPS_GPREL */
  45   RELOC_NUMBER (R_MIPS_LITERAL, 8)
  46   RELOC_NUMBER (R_MIPS_GOT16, 9)        /* In Elf 64: alias R_MIPS_GOT */
  47   RELOC_NUMBER (R_MIPS_PC16, 10)
  48   RELOC_NUMBER (R_MIPS_CALL16, 11)      /* In Elf 64: alias R_MIPS_CALL */
  49   RELOC_NUMBER (R_MIPS_GPREL32, 12)
  50   /* The remaining relocs are defined on Irix, although they are not
  51      in the MIPS ELF ABI.  */
  52   RELOC_NUMBER (R_MIPS_UNUSED1, 13)
  53   RELOC_NUMBER (R_MIPS_UNUSED2, 14)
  54   RELOC_NUMBER (R_MIPS_UNUSED3, 15)
  55   RELOC_NUMBER (R_MIPS_SHIFT5, 16)
  56   RELOC_NUMBER (R_MIPS_SHIFT6, 17)
  57   RELOC_NUMBER (R_MIPS_64, 18)
  58   RELOC_NUMBER (R_MIPS_GOT_DISP, 19)
  59   RELOC_NUMBER (R_MIPS_GOT_PAGE, 20)
  60   RELOC_NUMBER (R_MIPS_GOT_OFST, 21)
  61   RELOC_NUMBER (R_MIPS_GOT_HI16, 22)
  62   RELOC_NUMBER (R_MIPS_GOT_LO16, 23)
  63   RELOC_NUMBER (R_MIPS_SUB, 24)
  64   RELOC_NUMBER (R_MIPS_INSERT_A, 25)
  65   RELOC_NUMBER (R_MIPS_INSERT_B, 26)
  66   RELOC_NUMBER (R_MIPS_DELETE, 27)
  67   RELOC_NUMBER (R_MIPS_HIGHER, 28)
  68   RELOC_NUMBER (R_MIPS_HIGHEST, 29)
  69   RELOC_NUMBER (R_MIPS_CALL_HI16, 30)
  70   RELOC_NUMBER (R_MIPS_CALL_LO16, 31)
  71   RELOC_NUMBER (R_MIPS_SCN_DISP, 32)
  72   RELOC_NUMBER (R_MIPS_REL16, 33)
  73   RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34)
  74   RELOC_NUMBER (R_MIPS_PJUMP, 35)
  75   RELOC_NUMBER (R_MIPS_RELGOT, 36)
  76   RELOC_NUMBER (R_MIPS_JALR, 37)
  77   /* TLS relocations.  */
  78   RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38)
  79   RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39)
  80   RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40)
  81   RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41)
  82   RELOC_NUMBER (R_MIPS_TLS_GD, 42)
  83   RELOC_NUMBER (R_MIPS_TLS_LDM, 43)
  84   RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44)
  85   RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45)
  86   RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46)
  87   RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47)
  88   RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48)
  89   RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49)
  90   RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50)
  91   RELOC_NUMBER (R_MIPS_GLOB_DAT, 51)
  92   FAKE_RELOC (R_MIPS_max, 52)
  93   /* These relocs are used for the mips16.  */
  94   FAKE_RELOC (R_MIPS16_min, 100)
  95   RELOC_NUMBER (R_MIPS16_26, 100)
  96   RELOC_NUMBER (R_MIPS16_GPREL, 101)
  97   RELOC_NUMBER (R_MIPS16_GOT16, 102)
  98   RELOC_NUMBER (R_MIPS16_CALL16, 103)
  99   RELOC_NUMBER (R_MIPS16_HI16, 104)
 100   RELOC_NUMBER (R_MIPS16_LO16, 105)
 101   RELOC_NUMBER (R_MIPS16_TLS_GD, 106)
 102   RELOC_NUMBER (R_MIPS16_TLS_LDM, 107)
 103   RELOC_NUMBER (R_MIPS16_TLS_DTPREL_HI16, 108)
 104   RELOC_NUMBER (R_MIPS16_TLS_DTPREL_LO16, 109)
 105   RELOC_NUMBER (R_MIPS16_TLS_GOTTPREL, 110)
 106   RELOC_NUMBER (R_MIPS16_TLS_TPREL_HI16, 111)
 107   RELOC_NUMBER (R_MIPS16_TLS_TPREL_LO16, 112)
 108   FAKE_RELOC (R_MIPS16_max, 113)
 109   /* These relocations are specific to VxWorks.  */
 110   RELOC_NUMBER (R_MIPS_COPY, 126)
 111   RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127)
 112
 113   /* These relocations are specific to microMIPS.  */
 114   FAKE_RELOC (R_MICROMIPS_min, 130)
 115   RELOC_NUMBER (R_MICROMIPS_26_S1, 133)
 116   RELOC_NUMBER (R_MICROMIPS_HI16, 134)
 117   RELOC_NUMBER (R_MICROMIPS_LO16, 135)
 118   RELOC_NUMBER (R_MICROMIPS_GPREL16, 136)       /* In Elf 64:
 119                                                    alias R_MICROMIPS_GPREL */
 120   RELOC_NUMBER (R_MICROMIPS_LITERAL, 137)
 121   RELOC_NUMBER (R_MICROMIPS_GOT16, 138)         /* In Elf 64:
 122                                                    alias R_MICROMIPS_GOT */
 123   RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139)
 124   RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140)
 125   RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141)
 126   RELOC_NUMBER (R_MICROMIPS_CALL16, 142)        /* In Elf 64:
 127                                                    alias R_MICROMIPS_CALL */
 128   RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145)
 129   RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146)
 130   RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147)
 131   RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148)
 132   RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149)
 133   RELOC_NUMBER (R_MICROMIPS_SUB, 150)
 134   RELOC_NUMBER (R_MICROMIPS_HIGHER, 151)
 135   RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152)
 136   RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153)
 137   RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154)
 138   RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155)
 139   RELOC_NUMBER (R_MICROMIPS_JALR, 156)
 140   RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157)
 141   /* TLS relocations.  */
 142   RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162)
 143   RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163)
 144   RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164)
 145   RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165)
 146   RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166)
 147   RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169)
 148   RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170)
 149   /* microMIPS GP- and PC-relative relocations. */
 150   RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172)
 151   RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173)
 152   FAKE_RELOC (R_MICROMIPS_max, 174)
 153
 154   /* This was a GNU extension used by embedded-PIC.  It was co-opted by
 155      mips-linux for exception-handling data.  GCC stopped using it in
 156      May, 2004, then started using it again for compact unwind tables.  */
 157   RELOC_NUMBER (R_MIPS_PC32, 248)
 158   RELOC_NUMBER (R_MIPS_EH, 249)
 159   /* FIXME: this relocation is used internally by gas.  */
 160   RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250)
 161   /* These are GNU extensions to enable C++ vtable garbage collection.  */
 162   RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
 163   RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
 164 END_RELOC_NUMBERS (R_MIPS_maxext)
 165
 166 /* Processor specific flags for the ELF header e_flags field.  */
 167
 168 /* At least one .noreorder directive appears in the source.  */
 169 #define EF_MIPS_NOREORDER       0x00000001
 170
 171 /* File contains position independent code.  */
 172 #define EF_MIPS_PIC             0x00000002
 173
 174 /* Code in file uses the standard calling sequence for calling
 175    position independent code.  */
 176 #define EF_MIPS_CPIC            0x00000004
 177
 178 /* ???  Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a.  */
 179 #define EF_MIPS_XGOT            0x00000008
 180
 181 /* Code in file uses UCODE (obsolete) */
 182 #define EF_MIPS_UCODE           0x00000010
 183
 184 /* Code in file uses new ABI (-n32 on Irix 6).  */
 185 #define EF_MIPS_ABI2            0x00000020
 186
 187 /* Process the .MIPS.options section first by ld */
 188 #define EF_MIPS_OPTIONS_FIRST   0x00000080
 189
 190 /* Indicates code compiled for a 64-bit machine in 32-bit mode
 191    (regs are 32-bits wide).  */
 192 #define EF_MIPS_32BITMODE       0x00000100
 193
 194 /* 32-bit machine but FP registers are 64 bit (-mfp64).  */
 195 #define EF_MIPS_FP64            0x00000200
 196
 197 /* Code in file uses the IEEE 754-2008 NaN encoding convention.  */
 198 #define EF_MIPS_NAN2008         0x00000400
 199
 200 /* Architectural Extensions used by this file */
 201 #define EF_MIPS_ARCH_ASE        0x0f000000
 202
 203 /* Use MDMX multimedia extensions */
 204 #define EF_MIPS_ARCH_ASE_MDMX   0x08000000
 205
 206 /* Use MIPS-16 ISA extensions */
 207 #define EF_MIPS_ARCH_ASE_M16    0x04000000
 208
 209 /* Use MICROMIPS ISA extensions.  */
 210 #define EF_MIPS_ARCH_ASE_MICROMIPS      0x02000000
 211
 212 /* Four bit MIPS architecture field.  */
 213 #define EF_MIPS_ARCH            0xf0000000
 214
 215 /* -mips1 code.  */
 216 #define E_MIPS_ARCH_1           0x00000000
 217
 218 /* -mips2 code.  */
 219 #define E_MIPS_ARCH_2           0x10000000
 220
 221 /* -mips3 code.  */
 222 #define E_MIPS_ARCH_3           0x20000000
 223
 224 /* -mips4 code.  */
 225 #define E_MIPS_ARCH_4           0x30000000
 226
 227 /* -mips5 code.  */
 228 #define E_MIPS_ARCH_5           0x40000000
 229
 230 /* -mips32 code.  */
 231 #define E_MIPS_ARCH_32          0x50000000
 232
 233 /* -mips64 code.  */
 234 #define E_MIPS_ARCH_64          0x60000000
 235
 236 /* -mips32r2 code.  */
 237 #define E_MIPS_ARCH_32R2        0x70000000
 238
 239 /* -mips64r2 code.  */
 240 #define E_MIPS_ARCH_64R2        0x80000000
 241
 242 /* The ABI of the file.  Also see EF_MIPS_ABI2 above. */
 243 #define EF_MIPS_ABI             0x0000F000
 244
 245 /* The original o32 abi. */
 246 #define E_MIPS_ABI_O32          0x00001000
 247
 248 /* O32 extended to work on 64 bit architectures */
 249 #define E_MIPS_ABI_O64          0x00002000
 250
 251 /* EABI in 32 bit mode */
 252 #define E_MIPS_ABI_EABI32       0x00003000
 253
 254 /* EABI in 64 bit mode */
 255 #define E_MIPS_ABI_EABI64       0x00004000
 256
 257
 258 /* Machine variant if we know it.  This field was invented at Cygnus,
 259    but it is hoped that other vendors will adopt it.  If some standard
 260    is developed, this code should be changed to follow it. */
 261
 262 #define EF_MIPS_MACH            0x00FF0000
 263
 264 /* Cygnus is choosing values between 80 and 9F;
 265    00 - 7F should be left for a future standard;
 266    the rest are open. */
 267
 268 #define E_MIPS_MACH_3900        0x00810000
 269 #define E_MIPS_MACH_4010        0x00820000
 270 #define E_MIPS_MACH_4100        0x00830000
 271 #define E_MIPS_MACH_4650        0x00850000
 272 #define E_MIPS_MACH_4120        0x00870000
 273 #define E_MIPS_MACH_4111        0x00880000
 274 #define E_MIPS_MACH_SB1         0x008a0000
 275 #define E_MIPS_MACH_OCTEON      0x008b0000
 276 #define E_MIPS_MACH_XLR         0x008c0000
 277 #define E_MIPS_MACH_OCTEON2     0x008d0000
 278 #define E_MIPS_MACH_OCTEON3     0x008e0000
 279 #define E_MIPS_MACH_5400        0x00910000
 280 #define E_MIPS_MACH_5900        0x00920000
 281 #define E_MIPS_MACH_5500        0x00980000
 282 #define E_MIPS_MACH_9000        0x00990000
 283 #define E_MIPS_MACH_LS2E        0x00A00000
 284 #define E_MIPS_MACH_LS2F        0x00A10000
 285 #define E_MIPS_MACH_LS3A        0x00A20000
 286 \f
 287 /* Processor specific section indices.  These sections do not actually
 288    exist.  Symbols with a st_shndx field corresponding to one of these
 289    values have a special meaning.  */
 290
 291 /* Defined and allocated common symbol.  Value is virtual address.  If
 292    relocated, alignment must be preserved.  */
 293 #define SHN_MIPS_ACOMMON        SHN_LORESERVE
 294
 295 /* Defined and allocated text symbol.  Value is virtual address.
 296    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
 297 #define SHN_MIPS_TEXT           (SHN_LORESERVE + 1)
 298
 299 /* Defined and allocated data symbol.  Value is virtual address.
 300    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
 301 #define SHN_MIPS_DATA           (SHN_LORESERVE + 2)
 302
 303 /* Small common symbol.  */
 304 #define SHN_MIPS_SCOMMON        (SHN_LORESERVE + 3)
 305
 306 /* Small undefined symbol.  */
 307 #define SHN_MIPS_SUNDEFINED     (SHN_LORESERVE + 4)
 308 \f
 309 /* Processor specific section types.  */
 310
 311 /* Section contains the set of dynamic shared objects used when
 312    statically linking.  */
 313 #define SHT_MIPS_LIBLIST        0x70000000
 314
 315 /* I'm not sure what this is, but it's used on Irix 5.  */
 316 #define SHT_MIPS_MSYM           0x70000001
 317
 318 /* Section contains list of symbols whose definitions conflict with
 319    symbols defined in shared objects.  */
 320 #define SHT_MIPS_CONFLICT       0x70000002
 321
 322 /* Section contains the global pointer table.  */
 323 #define SHT_MIPS_GPTAB          0x70000003
 324
 325 /* Section contains microcode information.  The exact format is
 326    unspecified.  */
 327 #define SHT_MIPS_UCODE          0x70000004
 328
 329 /* Section contains some sort of debugging information.  The exact
 330    format is unspecified.  It's probably ECOFF symbols.  */
 331 #define SHT_MIPS_DEBUG          0x70000005
 332
 333 /* Section contains register usage information.  */
 334 #define SHT_MIPS_REGINFO        0x70000006
 335
 336 /* ??? */
 337 #define SHT_MIPS_PACKAGE        0x70000007
 338
 339 /* ??? */
 340 #define SHT_MIPS_PACKSYM        0x70000008
 341
 342 /* ??? */
 343 #define SHT_MIPS_RELD           0x70000009
 344
 345 /* Section contains interface information.  */
 346 #define SHT_MIPS_IFACE          0x7000000b
 347
 348 /* Section contains description of contents of another section.  */
 349 #define SHT_MIPS_CONTENT        0x7000000c
 350
 351 /* Section contains miscellaneous options.  */
 352 #define SHT_MIPS_OPTIONS        0x7000000d
 353
 354 /* ??? */
 355 #define SHT_MIPS_SHDR           0x70000010
 356
 357 /* ??? */
 358 #define SHT_MIPS_FDESC          0x70000011
 359
 360 /* ??? */
 361 #define SHT_MIPS_EXTSYM         0x70000012
 362
 363 /* ??? */
 364 #define SHT_MIPS_DENSE          0x70000013
 365
 366 /* ??? */
 367 #define SHT_MIPS_PDESC          0x70000014
 368
 369 /* ??? */
 370 #define SHT_MIPS_LOCSYM         0x70000015
 371
 372 /* ??? */
 373 #define SHT_MIPS_AUXSYM         0x70000016
 374
 375 /* ??? */
 376 #define SHT_MIPS_OPTSYM         0x70000017
 377
 378 /* ??? */
 379 #define SHT_MIPS_LOCSTR         0x70000018
 380
 381 /* ??? */
 382 #define SHT_MIPS_LINE           0x70000019
 383
 384 /* ??? */
 385 #define SHT_MIPS_RFDESC         0x7000001a
 386
 387 /* Delta C++: symbol table */
 388 #define SHT_MIPS_DELTASYM       0x7000001b
 389
 390 /* Delta C++: instance table */
 391 #define SHT_MIPS_DELTAINST      0x7000001c
 392
 393 /* Delta C++: class table */
 394 #define SHT_MIPS_DELTACLASS     0x7000001d
 395
 396 /* DWARF debugging section.  */
 397 #define SHT_MIPS_DWARF          0x7000001e
 398
 399 /* Delta C++: declarations */
 400 #define SHT_MIPS_DELTADECL      0x7000001f
 401
 402 /* List of libraries the binary depends on.  Includes a time stamp, version
 403    number.  */
 404 #define SHT_MIPS_SYMBOL_LIB     0x70000020
 405
 406 /* Events section.  */
 407 #define SHT_MIPS_EVENTS         0x70000021
 408
 409 /* ??? */
 410 #define SHT_MIPS_TRANSLATE      0x70000022
 411
 412 /* Special pixie sections */
 413 #define SHT_MIPS_PIXIE          0x70000023
 414
 415 /* Address translation table (for debug info) */
 416 #define SHT_MIPS_XLATE          0x70000024
 417
 418 /* SGI internal address translation table (for debug info) */
 419 #define SHT_MIPS_XLATE_DEBUG    0x70000025
 420
 421 /* Intermediate code */
 422 #define SHT_MIPS_WHIRL          0x70000026
 423
 424 /* C++ exception handling region info */
 425 #define SHT_MIPS_EH_REGION      0x70000027
 426
 427 /* Obsolete address translation table (for debug info) */
 428 #define SHT_MIPS_XLATE_OLD      0x70000028
 429
 430 /* Runtime procedure descriptor table exception information (ucode) ??? */
 431 #define SHT_MIPS_PDR_EXCEPTION  0x70000029
 432
 433
 434 /* A section of type SHT_MIPS_LIBLIST contains an array of the
 435    following structure.  The sh_link field is the section index of the
 436    string table.  The sh_info field is the number of entries in the
 437    section.  */
 438 typedef struct
 439 {
 440   /* String table index for name of shared object.  */
 441   unsigned long l_name;
 442   /* Time stamp.  */
 443   unsigned long l_time_stamp;
 444   /* Checksum of symbol names and common sizes.  */
 445   unsigned long l_checksum;
 446   /* String table index for version.  */
 447   unsigned long l_version;
 448   /* Flags.  */
 449   unsigned long l_flags;
 450 } Elf32_Lib;
 451
 452 /* The external version of Elf32_Lib.  */
 453 typedef struct
 454 {
 455   unsigned char l_name[4];
 456   unsigned char l_time_stamp[4];
 457   unsigned char l_checksum[4];
 458   unsigned char l_version[4];
 459   unsigned char l_flags[4];
 460 } Elf32_External_Lib;
 461
 462 /* The l_flags field of an Elf32_Lib structure may contain the
 463    following flags.  */
 464
 465 /* Require an exact match at runtime.  */
 466 #define LL_EXACT_MATCH          0x00000001
 467
 468 /* Ignore version incompatibilities at runtime.  */
 469 #define LL_IGNORE_INT_VER       0x00000002
 470
 471 /* Require matching minor version number.  */
 472 #define LL_REQUIRE_MINOR        0x00000004
 473
 474 /* ??? */
 475 #define LL_EXPORTS              0x00000008
 476
 477 /* Delay loading of this library until really needed.  */
 478 #define LL_DELAY_LOAD           0x00000010
 479
 480 /* ??? Delta C++ stuff ??? */
 481 #define LL_DELTA                0x00000020
 482
 483
 484 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the
 485    .dynsym section.  Each element has the following type.  */
 486 typedef unsigned long Elf32_Conflict;
 487 typedef unsigned char Elf32_External_Conflict[4];
 488
 489 typedef unsigned long Elf64_Conflict;
 490 typedef unsigned char Elf64_External_Conflict[8];
 491
 492 /* A section of type SHT_MIPS_GPTAB contains information about how
 493    much GP space would be required for different -G arguments.  This
 494    information is only used so that the linker can provide informative
 495    suggestions as to the best -G value to use.  The sh_info field is
 496    the index of the section for which this information applies.  The
 497    contents of the section are an array of the following union.  The
 498    first element uses the gt_header field.  The remaining elements use
 499    the gt_entry field.  */
 500 typedef union
 501 {
 502   struct
 503     {
 504       /* -G value actually used for this object file.  */
 505       unsigned long gt_current_g_value;
 506       /* Unused.  */
 507       unsigned long gt_unused;
 508     } gt_header;
 509   struct
 510     {
 511       /* If this -G argument has been used...  */
 512       unsigned long gt_g_value;
 513       /* ...this many GP section bytes would be required.  */
 514       unsigned long gt_bytes;
 515     } gt_entry;
 516 } Elf32_gptab;
 517
 518 /* The external version of Elf32_gptab.  */
 519
 520 typedef union
 521 {
 522   struct
 523     {
 524       unsigned char gt_current_g_value[4];
 525       unsigned char gt_unused[4];
 526     } gt_header;
 527   struct
 528     {
 529       unsigned char gt_g_value[4];
 530       unsigned char gt_bytes[4];
 531     } gt_entry;
 532 } Elf32_External_gptab;
 533
 534 /* A section of type SHT_MIPS_REGINFO contains the following
 535    structure.  */
 536 typedef struct
 537 {
 538   /* Mask of general purpose registers used.  */
 539   unsigned long ri_gprmask;
 540   /* Mask of co-processor registers used.  */
 541   unsigned long ri_cprmask[4];
 542   /* GP register value for this object file.  */
 543   long ri_gp_value;
 544 } Elf32_RegInfo;
 545
 546 /* The external version of the Elf_RegInfo structure.  */
 547 typedef struct
 548 {
 549   unsigned char ri_gprmask[4];
 550   unsigned char ri_cprmask[4][4];
 551   unsigned char ri_gp_value[4];
 552 } Elf32_External_RegInfo;
 553
 554 /* MIPS ELF .reginfo swapping routines.  */
 555 extern void bfd_mips_elf32_swap_reginfo_in
 556   (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *);
 557 extern void bfd_mips_elf32_swap_reginfo_out
 558   (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *);
 559 \f
 560 /* Processor specific section flags.  */
 561
 562 /* This section must be in the global data area.  */
 563 #define SHF_MIPS_GPREL          0x10000000
 564
 565 /* This section should be merged.  */
 566 #define SHF_MIPS_MERGE          0x20000000
 567
 568 /* This section contains address data of size implied by section
 569    element size.  */
 570 #define SHF_MIPS_ADDR           0x40000000
 571
 572 /* This section contains string data.  */
 573 #define SHF_MIPS_STRING         0x80000000
 574
 575 /* This section may not be stripped.  */
 576 #define SHF_MIPS_NOSTRIP        0x08000000
 577
 578 /* This section is local to threads.  */
 579 #define SHF_MIPS_LOCAL          0x04000000
 580
 581 /* Linker should generate implicit weak names for this section.  */
 582 #define SHF_MIPS_NAMES          0x02000000
 583
 584 /* Section contais text/data which may be replicated in other sections.
 585    Linker should retain only one copy.  */
 586 #define SHF_MIPS_NODUPES        0x01000000
 587 \f
 588 /* Processor specific program header types.  */
 589
 590 /* Register usage information.  Identifies one .reginfo section.  */
 591 #define PT_MIPS_REGINFO         0x70000000
 592
 593 /* Runtime procedure table.  */
 594 #define PT_MIPS_RTPROC          0x70000001
 595
 596 /* .MIPS.options section.  */
 597 #define PT_MIPS_OPTIONS         0x70000002
 598 \f
 599 /* Processor specific dynamic array tags.  */
 600
 601 /* 32 bit version number for runtime linker interface.  */
 602 #define DT_MIPS_RLD_VERSION     0x70000001
 603
 604 /* Time stamp.  */
 605 #define DT_MIPS_TIME_STAMP      0x70000002
 606
 607 /* Checksum of external strings and common sizes.  */
 608 #define DT_MIPS_ICHECKSUM       0x70000003
 609
 610 /* Index of version string in string table.  */
 611 #define DT_MIPS_IVERSION        0x70000004
 612
 613 /* 32 bits of flags.  */
 614 #define DT_MIPS_FLAGS           0x70000005
 615
 616 /* Base address of the segment.  */
 617 #define DT_MIPS_BASE_ADDRESS    0x70000006
 618
 619 /* ??? */
 620 #define DT_MIPS_MSYM            0x70000007
 621
 622 /* Address of .conflict section.  */
 623 #define DT_MIPS_CONFLICT        0x70000008
 624
 625 /* Address of .liblist section.  */
 626 #define DT_MIPS_LIBLIST         0x70000009
 627
 628 /* Number of local global offset table entries.  */
 629 #define DT_MIPS_LOCAL_GOTNO     0x7000000a
 630
 631 /* Number of entries in the .conflict section.  */
 632 #define DT_MIPS_CONFLICTNO      0x7000000b
 633
 634 /* Number of entries in the .liblist section.  */
 635 #define DT_MIPS_LIBLISTNO       0x70000010
 636
 637 /* Number of entries in the .dynsym section.  */
 638 #define DT_MIPS_SYMTABNO        0x70000011
 639
 640 /* Index of first external dynamic symbol not referenced locally.  */
 641 #define DT_MIPS_UNREFEXTNO      0x70000012
 642
 643 /* Index of first dynamic symbol in global offset table.  */
 644 #define DT_MIPS_GOTSYM          0x70000013
 645
 646 /* Number of page table entries in global offset table.  */
 647 #define DT_MIPS_HIPAGENO        0x70000014
 648
 649 /* Address of run time loader map, used for debugging.  */
 650 #define DT_MIPS_RLD_MAP         0x70000016
 651
 652 /* Delta C++ class definition.  */
 653 #define DT_MIPS_DELTA_CLASS     0x70000017
 654
 655 /* Number of entries in DT_MIPS_DELTA_CLASS.  */
 656 #define DT_MIPS_DELTA_CLASS_NO  0x70000018
 657
 658 /* Delta C++ class instances.  */
 659 #define DT_MIPS_DELTA_INSTANCE  0x70000019
 660
 661 /* Number of entries in DT_MIPS_DELTA_INSTANCE.  */
 662 #define DT_MIPS_DELTA_INSTANCE_NO       0x7000001a
 663
 664 /* Delta relocations.  */
 665 #define DT_MIPS_DELTA_RELOC     0x7000001b
 666
 667 /* Number of entries in DT_MIPS_DELTA_RELOC.  */
 668 #define DT_MIPS_DELTA_RELOC_NO  0x7000001c
 669
 670 /* Delta symbols that Delta relocations refer to.  */
 671 #define DT_MIPS_DELTA_SYM       0x7000001d
 672
 673 /* Number of entries in DT_MIPS_DELTA_SYM.  */
 674 #define DT_MIPS_DELTA_SYM_NO    0x7000001e
 675
 676 /* Delta symbols that hold class declarations.  */
 677 #define DT_MIPS_DELTA_CLASSSYM  0x70000020
 678
 679 /* Number of entries in DT_MIPS_DELTA_CLASSSYM.  */
 680 #define DT_MIPS_DELTA_CLASSSYM_NO       0x70000021
 681
 682 /* Flags indicating information about C++ flavor.  */
 683 #define DT_MIPS_CXX_FLAGS       0x70000022
 684
 685 /* Pixie information (???).  */
 686 #define DT_MIPS_PIXIE_INIT      0x70000023
 687
 688 /* Address of .MIPS.symlib */
 689 #define DT_MIPS_SYMBOL_LIB      0x70000024
 690
 691 /* The GOT index of the first PTE for a segment */
 692 #define DT_MIPS_LOCALPAGE_GOTIDX        0x70000025
 693
 694 /* The GOT index of the first PTE for a local symbol */
 695 #define DT_MIPS_LOCAL_GOTIDX    0x70000026
 696
 697 /* The GOT index of the first PTE for a hidden symbol */
 698 #define DT_MIPS_HIDDEN_GOTIDX   0x70000027
 699
 700 /* The GOT index of the first PTE for a protected symbol */
 701 #define DT_MIPS_PROTECTED_GOTIDX        0x70000028
 702
 703 /* Address of `.MIPS.options'.  */
 704 #define DT_MIPS_OPTIONS         0x70000029
 705
 706 /* Address of `.interface'.  */
 707 #define DT_MIPS_INTERFACE       0x7000002a
 708
 709 /* ??? */
 710 #define DT_MIPS_DYNSTR_ALIGN    0x7000002b
 711
 712 /* Size of the .interface section.  */
 713 #define DT_MIPS_INTERFACE_SIZE  0x7000002c
 714
 715 /* Size of rld_text_resolve function stored in the GOT.  */
 716 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR   0x7000002d
 717
 718 /* Default suffix of DSO to be added by rld on dlopen() calls.  */
 719 #define DT_MIPS_PERF_SUFFIX     0x7000002e
 720
 721 /* Size of compact relocation section (O32).  */
 722 #define DT_MIPS_COMPACT_SIZE    0x7000002f
 723
 724 /* GP value for auxiliary GOTs.  */
 725 #define DT_MIPS_GP_VALUE        0x70000030
 726
 727 /* Address of auxiliary .dynamic.  */
 728 #define DT_MIPS_AUX_DYNAMIC     0x70000031
 729
 730 /* Address of the base of the PLTGOT.  */
 731 #define DT_MIPS_PLTGOT         0x70000032
 732
 733 /* Points to the base of a writable PLT.  */
 734 #define DT_MIPS_RWPLT          0x70000034
 735 \f
 736 /* Flags which may appear in a DT_MIPS_FLAGS entry.  */
 737
 738 /* No flags.  */
 739 #define RHF_NONE                0x00000000
 740
 741 /* Uses shortcut pointers.  */
 742 #define RHF_QUICKSTART          0x00000001
 743
 744 /* Hash size is not a power of two.  */
 745 #define RHF_NOTPOT              0x00000002
 746
 747 /* Ignore LD_LIBRARY_PATH.  */
 748 #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004
 749
 750 /* DSO address may not be relocated. */
 751 #define RHF_NO_MOVE             0x00000008
 752
 753 /* SGI specific features. */
 754 #define RHF_SGI_ONLY            0x00000010
 755
 756 /* Guarantee that .init will finish executing before any non-init
 757    code in DSO is called. */
 758 #define RHF_GUARANTEE_INIT         0x00000020
 759
 760 /* Contains Delta C++ code. */
 761 #define RHF_DELTA_C_PLUS_PLUS      0x00000040
 762
 763 /* Guarantee that .init will start executing before any non-init
 764    code in DSO is called. */
 765 #define RHF_GUARANTEE_START_INIT   0x00000080
 766
 767 /* Generated by pixie. */
 768 #define RHF_PIXIE                  0x00000100
 769
 770 /* Delay-load DSO by default. */
 771 #define RHF_DEFAULT_DELAY_LOAD     0x00000200
 772
 773 /* Object may be requickstarted */
 774 #define RHF_REQUICKSTART           0x00000400
 775
 776 /* Object has been requickstarted */
 777 #define RHF_REQUICKSTARTED         0x00000800
 778
 779 /* Generated by cord. */
 780 #define RHF_CORD                   0x00001000
 781
 782 /* Object contains no unresolved undef symbols. */
 783 #define RHF_NO_UNRES_UNDEF         0x00002000
 784
 785 /* Symbol table is in a safe order. */
 786 #define RHF_RLD_ORDER_SAFE         0x00004000
 787 \f
 788 /* Special values for the st_other field in the symbol table.  These
 789    are used in an Irix 5 dynamic symbol table.  */
 790
 791 #define STO_DEFAULT             STV_DEFAULT
 792 #define STO_INTERNAL            STV_INTERNAL
 793 #define STO_HIDDEN              STV_HIDDEN
 794 #define STO_PROTECTED           STV_PROTECTED
 795
 796 /* Two topmost bits denote the MIPS ISA for .text symbols:
 797    + 00 -- standard MIPS code,
 798    + 10 -- microMIPS code,
 799    + 11 -- MIPS16 code; requires the following two bits to be set too.
 800    Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC.  See below
 801    for details.  */
 802 #define STO_MIPS_ISA            (3 << 6)
 803
 804 /* The mask spanning the rest of MIPS psABI flags.  At most one is expected
 805    to be set except for STO_MIPS16.  */
 806 #define STO_MIPS_FLAGS          (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1)))
 807
 808 /* The MIPS psABI was updated in 2008 with support for PLTs and copy
 809    relocs.  There are therefore two types of nonzero SHN_UNDEF functions:
 810    PLT entries and traditional MIPS lazy binding stubs.  We mark the former
 811    with STO_MIPS_PLT to distinguish them from the latter.  */
 812 #define STO_MIPS_PLT            0x8
 813 #define ELF_ST_IS_MIPS_PLT(other)                                       \
 814   ((ELF_ST_IS_MIPS16 (other)                                            \
 815     ? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS))                        \
 816     : ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT)
 817 #define ELF_ST_SET_MIPS_PLT(other)                                      \
 818   ((ELF_ST_IS_MIPS16 (other)                                            \
 819     ? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS))                        \
 820     : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT)
 821
 822 /* This value is used to mark PIC functions in an object that mixes
 823    PIC and non-PIC.  Note that this bit overlaps with STO_MIPS16,
 824    although MIPS16 symbols are never considered to be MIPS_PIC.  */
 825 #define STO_MIPS_PIC            0x20
 826 #define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC)
 827 #define ELF_ST_SET_MIPS_PIC(other)                                      \
 828   ((ELF_ST_IS_MIPS16 (other)                                            \
 829     ? ((other) & ~(STO_MIPS16 | STO_MIPS_FLAGS))                        \
 830     : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PIC)
 831
 832 /* This value is used for a mips16 .text symbol.  */
 833 #define STO_MIPS16              0xf0
 834 #define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16)
 835 #define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16)
 836
 837 /* This value is used for a microMIPS .text symbol.  To distinguish from
 838    STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS.  The
 839    mask is STO_MIPS_ISA.  */
 840 #define STO_MICROMIPS           (2 << 6)
 841 #define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS)
 842 #define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS)
 843
 844 /* Whether code compression (either of the MIPS16 or the microMIPS ASEs)
 845    has been indicated for a .text symbol.  */
 846 #define ELF_ST_IS_COMPRESSED(other) \
 847   (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other))
 848
 849 /* This bit is used on Irix to indicate a symbol whose definition
 850    is optional - if, at final link time, it cannot be found, no
 851    error message should be produced.  */
 852 #define STO_OPTIONAL            (1 << 2)
 853 /* A macro to examine the STO_OPTIONAL bit.  */
 854 #define ELF_MIPS_IS_OPTIONAL(other)     ((other) & STO_OPTIONAL)
 855 \f
 856 /* The 64-bit MIPS ELF ABI uses an unusual reloc format.  Each
 857    relocation entry specifies up to three actual relocations, all at
 858    the same address.  The first relocation which required a symbol
 859    uses the symbol in the r_sym field.  The second relocation which
 860    requires a symbol uses the symbol in the r_ssym field.  If all
 861    three relocations require a symbol, the third one uses a zero
 862    value.  */
 863
 864 /* An entry in a 64 bit SHT_REL section.  */
 865
 866 typedef struct
 867 {
 868   /* Address of relocation.  */
 869   unsigned char r_offset[8];
 870   /* Symbol index.  */
 871   unsigned char r_sym[4];
 872   /* Special symbol.  */
 873   unsigned char r_ssym[1];
 874   /* Third relocation.  */
 875   unsigned char r_type3[1];
 876   /* Second relocation.  */
 877   unsigned char r_type2[1];
 878   /* First relocation.  */
 879   unsigned char r_type[1];
 880 } Elf64_Mips_External_Rel;
 881
 882 typedef struct
 883 {
 884   /* Address of relocation.  */
 885   bfd_vma r_offset;
 886   /* Symbol index.  */
 887   unsigned long r_sym;
 888   /* Special symbol.  */
 889   unsigned char r_ssym;
 890   /* Third relocation.  */
 891   unsigned char r_type3;
 892   /* Second relocation.  */
 893   unsigned char r_type2;
 894   /* First relocation.  */
 895   unsigned char r_type;
 896 } Elf64_Mips_Internal_Rel;
 897
 898 /* An entry in a 64 bit SHT_RELA section.  */
 899
 900 typedef struct
 901 {
 902   /* Address of relocation.  */
 903   unsigned char r_offset[8];
 904   /* Symbol index.  */
 905   unsigned char r_sym[4];
 906   /* Special symbol.  */
 907   unsigned char r_ssym[1];
 908   /* Third relocation.  */
 909   unsigned char r_type3[1];
 910   /* Second relocation.  */
 911   unsigned char r_type2[1];
 912   /* First relocation.  */
 913   unsigned char r_type[1];
 914   /* Addend.  */
 915   unsigned char r_addend[8];
 916 } Elf64_Mips_External_Rela;
 917
 918 typedef struct
 919 {
 920   /* Address of relocation.  */
 921   bfd_vma r_offset;
 922   /* Symbol index.  */
 923   unsigned long r_sym;
 924   /* Special symbol.  */
 925   unsigned char r_ssym;
 926   /* Third relocation.  */
 927   unsigned char r_type3;
 928   /* Second relocation.  */
 929   unsigned char r_type2;
 930   /* First relocation.  */
 931   unsigned char r_type;
 932   /* Addend.  */
 933   bfd_signed_vma r_addend;
 934 } Elf64_Mips_Internal_Rela;
 935
 936 /* MIPS ELF 64 relocation info access macros.  */
 937 #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff)
 938 #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff)
 939 #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff)
 940 #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff)
 941
 942 /* Values found in the r_ssym field of a relocation entry.  */
 943
 944 /* No relocation.  */
 945 #define RSS_UNDEF       0
 946
 947 /* Value of GP.  */
 948 #define RSS_GP          1
 949
 950 /* Value of GP in object being relocated.  */
 951 #define RSS_GP0         2
 952
 953 /* Address of location being relocated.  */
 954 #define RSS_LOC         3
 955 \f
 956 /* A SHT_MIPS_OPTIONS section contains a series of options, each of
 957    which starts with this header.  */
 958
 959 typedef struct
 960 {
 961   /* Type of option.  */
 962   unsigned char kind[1];
 963   /* Size of option descriptor, including header.  */
 964   unsigned char size[1];
 965   /* Section index of affected section, or 0 for global option.  */
 966   unsigned char section[2];
 967   /* Information specific to this kind of option.  */
 968   unsigned char info[4];
 969 } Elf_External_Options;
 970
 971 typedef struct
 972 {
 973   /* Type of option.  */
 974   unsigned char kind;
 975   /* Size of option descriptor, including header.  */
 976   unsigned char size;
 977   /* Section index of affected section, or 0 for global option.  */
 978   unsigned short section;
 979   /* Information specific to this kind of option.  */
 980   unsigned long info;
 981 } Elf_Internal_Options;
 982
 983 /* MIPS ELF option header swapping routines.  */
 984 extern void bfd_mips_elf_swap_options_in
 985   (bfd *, const Elf_External_Options *, Elf_Internal_Options *);
 986 extern void bfd_mips_elf_swap_options_out
 987   (bfd *, const Elf_Internal_Options *, Elf_External_Options *);
 988
 989 /* Values which may appear in the kind field of an Elf_Options
 990    structure.  */
 991
 992 /* Undefined.  */
 993 #define ODK_NULL        0
 994
 995 /* Register usage and GP value.  */
 996 #define ODK_REGINFO     1
 997
 998 /* Exception processing information.  */
 999 #define ODK_EXCEPTIONS  2
1000
1001 /* Section padding information.  */
1002 #define ODK_PAD         3
1003
1004 /* Hardware workarounds performed.  */
1005 #define ODK_HWPATCH     4
1006
1007 /* Fill value used by the linker.  */
1008 #define ODK_FILL        5
1009
1010 /* Reserved space for desktop tools.  */
1011 #define ODK_TAGS        6
1012
1013 /* Hardware workarounds, AND bits when merging.  */
1014 #define ODK_HWAND       7
1015
1016 /* Hardware workarounds, OR bits when merging.  */
1017 #define ODK_HWOR        8
1018
1019 /* GP group to use for text/data sections.  */
1020 #define ODK_GP_GROUP    9
1021
1022 /* ID information.  */
1023 #define ODK_IDENT       10
1024
1025 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo
1026    structure.  In the 64 bit ABI, it is the following structure.  The
1027    info field of the options header is not used.  */
1028
1029 typedef struct
1030 {
1031   /* Mask of general purpose registers used.  */
1032   unsigned char ri_gprmask[4];
1033   /* Padding.  */
1034   unsigned char ri_pad[4];
1035   /* Mask of co-processor registers used.  */
1036   unsigned char ri_cprmask[4][4];
1037   /* GP register value for this object file.  */
1038   unsigned char ri_gp_value[8];
1039 } Elf64_External_RegInfo;
1040
1041 typedef struct
1042 {
1043   /* Mask of general purpose registers used.  */
1044   unsigned long ri_gprmask;
1045   /* Padding.  */
1046   unsigned long ri_pad;
1047   /* Mask of co-processor registers used.  */
1048   unsigned long ri_cprmask[4];
1049   /* GP register value for this object file.  */
1050   bfd_vma ri_gp_value;
1051 } Elf64_Internal_RegInfo;
1052
1053 typedef struct
1054 {
1055   /* The hash value computed from the name of the corresponding
1056      dynamic symbol.  */
1057   unsigned char ms_hash_value[4];
1058   /* Contains both the dynamic relocation index and the symbol flags
1059      field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
1060      to access the individual values.  The dynamic relocation index
1061      identifies the first entry in the .rel.dyn section that
1062      references the dynamic symbol corresponding to this msym entry.
1063      If the index is 0, no dynamic relocations are associated with the
1064      symbol.  The symbol flags field is reserved for future use.  */
1065   unsigned char ms_info[4];
1066 } Elf32_External_Msym;
1067
1068 typedef struct
1069 {
1070   /* The hash value computed from the name of the corresponding
1071      dynamic symbol.  */
1072   unsigned long ms_hash_value;
1073   /* Contains both the dynamic relocation index and the symbol flags
1074      field.  The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used
1075      to access the individual values.  The dynamic relocation index
1076      identifies the first entry in the .rel.dyn section that
1077      references the dynamic symbol corresponding to this msym entry.
1078      If the index is 0, no dynamic relocations are associated with the
1079      symbol.  The symbol flags field is reserved for future use.  */
1080   unsigned long ms_info;
1081 } Elf32_Internal_Msym;
1082
1083 #define ELF32_MS_REL_INDEX(i) ((i) >> 8)
1084 #define ELF32_MS_FLAGS(i)     (i) & 0xff)
1085 #define ELF32_MS_INFO(r, f)   (((r) << 8) + ((f) & 0xff))
1086
1087 /* MIPS ELF reginfo swapping routines.  */
1088 extern void bfd_mips_elf64_swap_reginfo_in
1089   (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *);
1090 extern void bfd_mips_elf64_swap_reginfo_out
1091   (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *);
1092
1093 /* Masks for the info work of an ODK_EXCEPTIONS descriptor.  */
1094 #define OEX_FPU_MIN     0x1f    /* FPEs which must be enabled.  */
1095 #define OEX_FPU_MAX     0x1f00  /* FPEs which may be enabled.  */
1096 #define OEX_PAGE0       0x10000 /* Page zero must be mapped.  */
1097 #define OEX_SMM         0x20000 /* Force sequential memory mode.  */
1098 #define OEX_FPDBUG      0x40000 /* Force precise floating-point
1099                                    exceptions (debug mode).  */
1100 #define OEX_DISMISS     0x80000 /* Dismiss invalid address faults.  */
1101
1102 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX.  */
1103 #define OEX_FPU_INVAL   0x10    /* Invalid operation exception.  */
1104 #define OEX_FPU_DIV0    0x08    /* Division by zero exception.  */
1105 #define OEX_FPU_OFLO    0x04    /* Overflow exception.  */
1106 #define OEX_FPU_UFLO    0x02    /* Underflow exception.  */
1107 #define OEX_FPU_INEX    0x01    /* Inexact exception.  */
1108
1109 /* Masks for the info word of an ODK_PAD descriptor.  */
1110 #define OPAD_PREFIX     0x01
1111 #define OPAD_POSTFIX    0x02
1112 #define OPAD_SYMBOL     0x04
1113
1114 /* Masks for the info word of an ODK_HWPATCH descriptor.  */
1115 #define OHW_R4KEOP      0x00000001      /* R4000 end-of-page patch.  */
1116 #define OHW_R8KPFETCH   0x00000002      /* May need R8000 prefetch patch.  */
1117 #define OHW_R5KEOP      0x00000004      /* R5000 end-of-page patch.  */
1118 #define OHW_R5KCVTL     0x00000008      /* R5000 cvt.[ds].l bug
1119                                            (clean == 1).  */
1120 #define OHW_R10KLDL     0x00000010      /* Needs R10K misaligned
1121                                            load patch. */
1122
1123 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor.  */
1124 #define OGP_GROUP       0x0000ffff      /* GP group number.  */
1125 #define OGP_SELF        0xffff0000      /* Self-contained GP groups.  */
1126
1127 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor.  */
1128 #define OHWA0_R4KEOP_CHECKED    0x00000001
1129 #define OHWA0_R4KEOP_CLEAN      0x00000002
1130 \f
1131
1132 /* Object attribute tags.  */
1133 enum
1134 {
1135   /* 0-3 are generic.  */
1136
1137   /* Floating-point ABI used by this object file.  */
1138   Tag_GNU_MIPS_ABI_FP = 4,
1139
1140   /* MSA ABI used by this object file.  */
1141   Tag_GNU_MIPS_ABI_MSA = 8,
1142 };
1143
1144 /* Object attribute values.  */
1145 enum
1146 {
1147   /* Values defined for Tag_GNU_MIPS_ABI_FP.  */
1148
1149   /* Not tagged or not using any ABIs affected by the differences.  */
1150   Val_GNU_MIPS_ABI_FP_ANY = 0,
1151
1152   /* Using hard-float -mdouble-float.  */
1153   Val_GNU_MIPS_ABI_FP_DOUBLE = 1,
1154
1155   /* Using hard-float -msingle-float.  */
1156   Val_GNU_MIPS_ABI_FP_SINGLE = 2,
1157
1158   /* Using soft-float.  */
1159   Val_GNU_MIPS_ABI_FP_SOFT = 3,
1160
1161   /* Using -mips32r2 -mfp64.  */
1162   Val_GNU_MIPS_ABI_FP_64 = 4,
1163
1164   /* Values defined for Tag_GNU_MIPS_ABI_MSA.  */
1165
1166   /* Not tagged or not using any ABIs affected by the differences.  */
1167   Val_GNU_MIPS_ABI_MSA_ANY = 0,
1168
1169   /* Using 128-bit MSA.  */
1170   Val_GNU_MIPS_ABI_MSA_128 = 1,
1171 };
1172
1173 #endif /* _ELF_MIPS_H */