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_5400 0x00910000 279 #define E_MIPS_MACH_5900 0x00920000 280 #define E_MIPS_MACH_5500 0x00980000 281 #define E_MIPS_MACH_9000 0x00990000 282 #define E_MIPS_MACH_LS2E 0x00A00000 283 #define E_MIPS_MACH_LS2F 0x00A10000 284 #define E_MIPS_MACH_LS3A 0x00A20000 285 286 /* Processor specific section indices. These sections do not actually 287 exist. Symbols with a st_shndx field corresponding to one of these 288 values have a special meaning. */ 289 290 /* Defined and allocated common symbol. Value is virtual address. If 291 relocated, alignment must be preserved. */ 292 #define SHN_MIPS_ACOMMON SHN_LORESERVE 293 294 /* Defined and allocated text symbol. Value is virtual address. 295 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ 296 #define SHN_MIPS_TEXT (SHN_LORESERVE + 1) 297 298 /* Defined and allocated data symbol. Value is virtual address. 299 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ 300 #define SHN_MIPS_DATA (SHN_LORESERVE + 2) 301 302 /* Small common symbol. */ 303 #define SHN_MIPS_SCOMMON (SHN_LORESERVE + 3) 304 305 /* Small undefined symbol. */ 306 #define SHN_MIPS_SUNDEFINED (SHN_LORESERVE + 4) 307 308 /* Processor specific section types. */ 309 310 /* Section contains the set of dynamic shared objects used when 311 statically linking. */ 312 #define SHT_MIPS_LIBLIST 0x70000000 313 314 /* I'm not sure what this is, but it's used on Irix 5. */ 315 #define SHT_MIPS_MSYM 0x70000001 316 317 /* Section contains list of symbols whose definitions conflict with 318 symbols defined in shared objects. */ 319 #define SHT_MIPS_CONFLICT 0x70000002 320 321 /* Section contains the global pointer table. */ 322 #define SHT_MIPS_GPTAB 0x70000003 323 324 /* Section contains microcode information. The exact format is 325 unspecified. */ 326 #define SHT_MIPS_UCODE 0x70000004 327 328 /* Section contains some sort of debugging information. The exact 329 format is unspecified. It's probably ECOFF symbols. */ 330 #define SHT_MIPS_DEBUG 0x70000005 331 332 /* Section contains register usage information. */ 333 #define SHT_MIPS_REGINFO 0x70000006 334 335 /* ??? */ 336 #define SHT_MIPS_PACKAGE 0x70000007 337 338 /* ??? */ 339 #define SHT_MIPS_PACKSYM 0x70000008 340 341 /* ??? */ 342 #define SHT_MIPS_RELD 0x70000009 343 344 /* Section contains interface information. */ 345 #define SHT_MIPS_IFACE 0x7000000b 346 347 /* Section contains description of contents of another section. */ 348 #define SHT_MIPS_CONTENT 0x7000000c 349 350 /* Section contains miscellaneous options. */ 351 #define SHT_MIPS_OPTIONS 0x7000000d 352 353 /* ??? */ 354 #define SHT_MIPS_SHDR 0x70000010 355 356 /* ??? */ 357 #define SHT_MIPS_FDESC 0x70000011 358 359 /* ??? */ 360 #define SHT_MIPS_EXTSYM 0x70000012 361 362 /* ??? */ 363 #define SHT_MIPS_DENSE 0x70000013 364 365 /* ??? */ 366 #define SHT_MIPS_PDESC 0x70000014 367 368 /* ??? */ 369 #define SHT_MIPS_LOCSYM 0x70000015 370 371 /* ??? */ 372 #define SHT_MIPS_AUXSYM 0x70000016 373 374 /* ??? */ 375 #define SHT_MIPS_OPTSYM 0x70000017 376 377 /* ??? */ 378 #define SHT_MIPS_LOCSTR 0x70000018 379 380 /* ??? */ 381 #define SHT_MIPS_LINE 0x70000019 382 383 /* ??? */ 384 #define SHT_MIPS_RFDESC 0x7000001a 385 386 /* Delta C++: symbol table */ 387 #define SHT_MIPS_DELTASYM 0x7000001b 388 389 /* Delta C++: instance table */ 390 #define SHT_MIPS_DELTAINST 0x7000001c 391 392 /* Delta C++: class table */ 393 #define SHT_MIPS_DELTACLASS 0x7000001d 394 395 /* DWARF debugging section. */ 396 #define SHT_MIPS_DWARF 0x7000001e 397 398 /* Delta C++: declarations */ 399 #define SHT_MIPS_DELTADECL 0x7000001f 400 401 /* List of libraries the binary depends on. Includes a time stamp, version 402 number. */ 403 #define SHT_MIPS_SYMBOL_LIB 0x70000020 404 405 /* Events section. */ 406 #define SHT_MIPS_EVENTS 0x70000021 407 408 /* ??? */ 409 #define SHT_MIPS_TRANSLATE 0x70000022 410 411 /* Special pixie sections */ 412 #define SHT_MIPS_PIXIE 0x70000023 413 414 /* Address translation table (for debug info) */ 415 #define SHT_MIPS_XLATE 0x70000024 416 417 /* SGI internal address translation table (for debug info) */ 418 #define SHT_MIPS_XLATE_DEBUG 0x70000025 419 420 /* Intermediate code */ 421 #define SHT_MIPS_WHIRL 0x70000026 422 423 /* C++ exception handling region info */ 424 #define SHT_MIPS_EH_REGION 0x70000027 425 426 /* Obsolete address translation table (for debug info) */ 427 #define SHT_MIPS_XLATE_OLD 0x70000028 428 429 /* Runtime procedure descriptor table exception information (ucode) ??? */ 430 #define SHT_MIPS_PDR_EXCEPTION 0x70000029 431 432 433 /* A section of type SHT_MIPS_LIBLIST contains an array of the 434 following structure. The sh_link field is the section index of the 435 string table. The sh_info field is the number of entries in the 436 section. */ 437 typedef struct 438 { 439 /* String table index for name of shared object. */ 440 unsigned long l_name; 441 /* Time stamp. */ 442 unsigned long l_time_stamp; 443 /* Checksum of symbol names and common sizes. */ 444 unsigned long l_checksum; 445 /* String table index for version. */ 446 unsigned long l_version; 447 /* Flags. */ 448 unsigned long l_flags; 449 } Elf32_Lib; 450 451 /* The external version of Elf32_Lib. */ 452 typedef struct 453 { 454 unsigned char l_name[4]; 455 unsigned char l_time_stamp[4]; 456 unsigned char l_checksum[4]; 457 unsigned char l_version[4]; 458 unsigned char l_flags[4]; 459 } Elf32_External_Lib; 460 461 /* The l_flags field of an Elf32_Lib structure may contain the 462 following flags. */ 463 464 /* Require an exact match at runtime. */ 465 #define LL_EXACT_MATCH 0x00000001 466 467 /* Ignore version incompatibilities at runtime. */ 468 #define LL_IGNORE_INT_VER 0x00000002 469 470 /* Require matching minor version number. */ 471 #define LL_REQUIRE_MINOR 0x00000004 472 473 /* ??? */ 474 #define LL_EXPORTS 0x00000008 475 476 /* Delay loading of this library until really needed. */ 477 #define LL_DELAY_LOAD 0x00000010 478 479 /* ??? Delta C++ stuff ??? */ 480 #define LL_DELTA 0x00000020 481 482 483 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the 484 .dynsym section. Each element has the following type. */ 485 typedef unsigned long Elf32_Conflict; 486 typedef unsigned char Elf32_External_Conflict[4]; 487 488 typedef unsigned long Elf64_Conflict; 489 typedef unsigned char Elf64_External_Conflict[8]; 490 491 /* A section of type SHT_MIPS_GPTAB contains information about how 492 much GP space would be required for different -G arguments. This 493 information is only used so that the linker can provide informative 494 suggestions as to the best -G value to use. The sh_info field is 495 the index of the section for which this information applies. The 496 contents of the section are an array of the following union. The 497 first element uses the gt_header field. The remaining elements use 498 the gt_entry field. */ 499 typedef union 500 { 501 struct 502 { 503 /* -G value actually used for this object file. */ 504 unsigned long gt_current_g_value; 505 /* Unused. */ 506 unsigned long gt_unused; 507 } gt_header; 508 struct 509 { 510 /* If this -G argument has been used... */ 511 unsigned long gt_g_value; 512 /* ...this many GP section bytes would be required. */ 513 unsigned long gt_bytes; 514 } gt_entry; 515 } Elf32_gptab; 516 517 /* The external version of Elf32_gptab. */ 518 519 typedef union 520 { 521 struct 522 { 523 unsigned char gt_current_g_value[4]; 524 unsigned char gt_unused[4]; 525 } gt_header; 526 struct 527 { 528 unsigned char gt_g_value[4]; 529 unsigned char gt_bytes[4]; 530 } gt_entry; 531 } Elf32_External_gptab; 532 533 /* A section of type SHT_MIPS_REGINFO contains the following 534 structure. */ 535 typedef struct 536 { 537 /* Mask of general purpose registers used. */ 538 unsigned long ri_gprmask; 539 /* Mask of co-processor registers used. */ 540 unsigned long ri_cprmask[4]; 541 /* GP register value for this object file. */ 542 long ri_gp_value; 543 } Elf32_RegInfo; 544 545 /* The external version of the Elf_RegInfo structure. */ 546 typedef struct 547 { 548 unsigned char ri_gprmask[4]; 549 unsigned char ri_cprmask[4][4]; 550 unsigned char ri_gp_value[4]; 551 } Elf32_External_RegInfo; 552 553 /* MIPS ELF .reginfo swapping routines. */ 554 extern void bfd_mips_elf32_swap_reginfo_in 555 (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *); 556 extern void bfd_mips_elf32_swap_reginfo_out 557 (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *); 558 559 /* Processor specific section flags. */ 560 561 /* This section must be in the global data area. */ 562 #define SHF_MIPS_GPREL 0x10000000 563 564 /* This section should be merged. */ 565 #define SHF_MIPS_MERGE 0x20000000 566 567 /* This section contains address data of size implied by section 568 element size. */ 569 #define SHF_MIPS_ADDR 0x40000000 570 571 /* This section contains string data. */ 572 #define SHF_MIPS_STRING 0x80000000 573 574 /* This section may not be stripped. */ 575 #define SHF_MIPS_NOSTRIP 0x08000000 576 577 /* This section is local to threads. */ 578 #define SHF_MIPS_LOCAL 0x04000000 579 580 /* Linker should generate implicit weak names for this section. */ 581 #define SHF_MIPS_NAMES 0x02000000 582 583 /* Section contais text/data which may be replicated in other sections. 584 Linker should retain only one copy. */ 585 #define SHF_MIPS_NODUPES 0x01000000 586 587 /* Processor specific program header types. */ 588 589 /* Register usage information. Identifies one .reginfo section. */ 590 #define PT_MIPS_REGINFO 0x70000000 591 592 /* Runtime procedure table. */ 593 #define PT_MIPS_RTPROC 0x70000001 594 595 /* .MIPS.options section. */ 596 #define PT_MIPS_OPTIONS 0x70000002 597 598 /* Processor specific dynamic array tags. */ 599 600 /* 32 bit version number for runtime linker interface. */ 601 #define DT_MIPS_RLD_VERSION 0x70000001 602 603 /* Time stamp. */ 604 #define DT_MIPS_TIME_STAMP 0x70000002 605 606 /* Checksum of external strings and common sizes. */ 607 #define DT_MIPS_ICHECKSUM 0x70000003 608 609 /* Index of version string in string table. */ 610 #define DT_MIPS_IVERSION 0x70000004 611 612 /* 32 bits of flags. */ 613 #define DT_MIPS_FLAGS 0x70000005 614 615 /* Base address of the segment. */ 616 #define DT_MIPS_BASE_ADDRESS 0x70000006 617 618 /* ??? */ 619 #define DT_MIPS_MSYM 0x70000007 620 621 /* Address of .conflict section. */ 622 #define DT_MIPS_CONFLICT 0x70000008 623 624 /* Address of .liblist section. */ 625 #define DT_MIPS_LIBLIST 0x70000009 626 627 /* Number of local global offset table entries. */ 628 #define DT_MIPS_LOCAL_GOTNO 0x7000000a 629 630 /* Number of entries in the .conflict section. */ 631 #define DT_MIPS_CONFLICTNO 0x7000000b 632 633 /* Number of entries in the .liblist section. */ 634 #define DT_MIPS_LIBLISTNO 0x70000010 635 636 /* Number of entries in the .dynsym section. */ 637 #define DT_MIPS_SYMTABNO 0x70000011 638 639 /* Index of first external dynamic symbol not referenced locally. */ 640 #define DT_MIPS_UNREFEXTNO 0x70000012 641 642 /* Index of first dynamic symbol in global offset table. */ 643 #define DT_MIPS_GOTSYM 0x70000013 644 645 /* Number of page table entries in global offset table. */ 646 #define DT_MIPS_HIPAGENO 0x70000014 647 648 /* Address of run time loader map, used for debugging. */ 649 #define DT_MIPS_RLD_MAP 0x70000016 650 651 /* Delta C++ class definition. */ 652 #define DT_MIPS_DELTA_CLASS 0x70000017 653 654 /* Number of entries in DT_MIPS_DELTA_CLASS. */ 655 #define DT_MIPS_DELTA_CLASS_NO 0x70000018 656 657 /* Delta C++ class instances. */ 658 #define DT_MIPS_DELTA_INSTANCE 0x70000019 659 660 /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ 661 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a 662 663 /* Delta relocations. */ 664 #define DT_MIPS_DELTA_RELOC 0x7000001b 665 666 /* Number of entries in DT_MIPS_DELTA_RELOC. */ 667 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c 668 669 /* Delta symbols that Delta relocations refer to. */ 670 #define DT_MIPS_DELTA_SYM 0x7000001d 671 672 /* Number of entries in DT_MIPS_DELTA_SYM. */ 673 #define DT_MIPS_DELTA_SYM_NO 0x7000001e 674 675 /* Delta symbols that hold class declarations. */ 676 #define DT_MIPS_DELTA_CLASSSYM 0x70000020 677 678 /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ 679 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 680 681 /* Flags indicating information about C++ flavor. */ 682 #define DT_MIPS_CXX_FLAGS 0x70000022 683 684 /* Pixie information (???). */ 685 #define DT_MIPS_PIXIE_INIT 0x70000023 686 687 /* Address of .MIPS.symlib */ 688 #define DT_MIPS_SYMBOL_LIB 0x70000024 689 690 /* The GOT index of the first PTE for a segment */ 691 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 692 693 /* The GOT index of the first PTE for a local symbol */ 694 #define DT_MIPS_LOCAL_GOTIDX 0x70000026 695 696 /* The GOT index of the first PTE for a hidden symbol */ 697 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 698 699 /* The GOT index of the first PTE for a protected symbol */ 700 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 701 702 /* Address of `.MIPS.options'. */ 703 #define DT_MIPS_OPTIONS 0x70000029 704 705 /* Address of `.interface'. */ 706 #define DT_MIPS_INTERFACE 0x7000002a 707 708 /* ??? */ 709 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b 710 711 /* Size of the .interface section. */ 712 #define DT_MIPS_INTERFACE_SIZE 0x7000002c 713 714 /* Size of rld_text_resolve function stored in the GOT. */ 715 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d 716 717 /* Default suffix of DSO to be added by rld on dlopen() calls. */ 718 #define DT_MIPS_PERF_SUFFIX 0x7000002e 719 720 /* Size of compact relocation section (O32). */ 721 #define DT_MIPS_COMPACT_SIZE 0x7000002f 722 723 /* GP value for auxiliary GOTs. */ 724 #define DT_MIPS_GP_VALUE 0x70000030 725 726 /* Address of auxiliary .dynamic. */ 727 #define DT_MIPS_AUX_DYNAMIC 0x70000031 728 729 /* Address of the base of the PLTGOT. */ 730 #define DT_MIPS_PLTGOT 0x70000032 731 732 /* Points to the base of a writable PLT. */ 733 #define DT_MIPS_RWPLT 0x70000034 734 735 /* Flags which may appear in a DT_MIPS_FLAGS entry. */ 736 737 /* No flags. */ 738 #define RHF_NONE 0x00000000 739 740 /* Uses shortcut pointers. */ 741 #define RHF_QUICKSTART 0x00000001 742 743 /* Hash size is not a power of two. */ 744 #define RHF_NOTPOT 0x00000002 745 746 /* Ignore LD_LIBRARY_PATH. */ 747 #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004 748 749 /* DSO address may not be relocated. */ 750 #define RHF_NO_MOVE 0x00000008 751 752 /* SGI specific features. */ 753 #define RHF_SGI_ONLY 0x00000010 754 755 /* Guarantee that .init will finish executing before any non-init 756 code in DSO is called. */ 757 #define RHF_GUARANTEE_INIT 0x00000020 758 759 /* Contains Delta C++ code. */ 760 #define RHF_DELTA_C_PLUS_PLUS 0x00000040 761 762 /* Guarantee that .init will start executing before any non-init 763 code in DSO is called. */ 764 #define RHF_GUARANTEE_START_INIT 0x00000080 765 766 /* Generated by pixie. */ 767 #define RHF_PIXIE 0x00000100 768 769 /* Delay-load DSO by default. */ 770 #define RHF_DEFAULT_DELAY_LOAD 0x00000200 771 772 /* Object may be requickstarted */ 773 #define RHF_REQUICKSTART 0x00000400 774 775 /* Object has been requickstarted */ 776 #define RHF_REQUICKSTARTED 0x00000800 777 778 /* Generated by cord. */ 779 #define RHF_CORD 0x00001000 780 781 /* Object contains no unresolved undef symbols. */ 782 #define RHF_NO_UNRES_UNDEF 0x00002000 783 784 /* Symbol table is in a safe order. */ 785 #define RHF_RLD_ORDER_SAFE 0x00004000 786 787 /* Special values for the st_other field in the symbol table. These 788 are used in an Irix 5 dynamic symbol table. */ 789 790 #define STO_DEFAULT STV_DEFAULT 791 #define STO_INTERNAL STV_INTERNAL 792 #define STO_HIDDEN STV_HIDDEN 793 #define STO_PROTECTED STV_PROTECTED 794 795 /* Two topmost bits denote the MIPS ISA for .text symbols: 796 + 00 -- standard MIPS code, 797 + 10 -- microMIPS code, 798 + 11 -- MIPS16 code; requires the following two bits to be set too. 799 Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC. See below 800 for details. */ 801 #define STO_MIPS_ISA (3 << 6) 802 803 /* The mask spanning the rest of MIPS psABI flags. At most one is expected 804 to be set except for STO_MIPS16. */ 805 #define STO_MIPS_FLAGS (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1))) 806 807 /* The MIPS psABI was updated in 2008 with support for PLTs and copy 808 relocs. There are therefore two types of nonzero SHN_UNDEF functions: 809 PLT entries and traditional MIPS lazy binding stubs. We mark the former 810 with STO_MIPS_PLT to distinguish them from the latter. */ 811 #define STO_MIPS_PLT 0x8 812 #define ELF_ST_IS_MIPS_PLT(other) \ 813 ((ELF_ST_IS_MIPS16 (other) \ 814 ? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS)) \ 815 : ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT) 816 #define ELF_ST_SET_MIPS_PLT(other) \ 817 ((ELF_ST_IS_MIPS16 (other) \ 818 ? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS)) \ 819 : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT) 820 821 /* This value is used to mark PIC functions in an object that mixes 822 PIC and non-PIC. Note that this bit overlaps with STO_MIPS16, 823 although MIPS16 symbols are never considered to be MIPS_PIC. */ 824 #define STO_MIPS_PIC 0x20 825 #define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC) 826 #define ELF_ST_SET_MIPS_PIC(other) \ 827 ((ELF_ST_IS_MIPS16 (other) \ 828 ? ((other) & ~(STO_MIPS16 | STO_MIPS_FLAGS)) \ 829 : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PIC) 830 831 /* This value is used for a mips16 .text symbol. */ 832 #define STO_MIPS16 0xf0 833 #define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16) 834 #define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16) 835 836 /* This value is used for a microMIPS .text symbol. To distinguish from 837 STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS. The 838 mask is STO_MIPS_ISA. */ 839 #define STO_MICROMIPS (2 << 6) 840 #define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS) 841 #define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS) 842 843 /* Whether code compression (either of the MIPS16 or the microMIPS ASEs) 844 has been indicated for a .text symbol. */ 845 #define ELF_ST_IS_COMPRESSED(other) \ 846 (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other)) 847 848 /* This bit is used on Irix to indicate a symbol whose definition 849 is optional - if, at final link time, it cannot be found, no 850 error message should be produced. */ 851 #define STO_OPTIONAL (1 << 2) 852 /* A macro to examine the STO_OPTIONAL bit. */ 853 #define ELF_MIPS_IS_OPTIONAL(other) ((other) & STO_OPTIONAL) 854 855 /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each 856 relocation entry specifies up to three actual relocations, all at 857 the same address. The first relocation which required a symbol 858 uses the symbol in the r_sym field. The second relocation which 859 requires a symbol uses the symbol in the r_ssym field. If all 860 three relocations require a symbol, the third one uses a zero 861 value. */ 862 863 /* An entry in a 64 bit SHT_REL section. */ 864 865 typedef struct 866 { 867 /* Address of relocation. */ 868 unsigned char r_offset[8]; 869 /* Symbol index. */ 870 unsigned char r_sym[4]; 871 /* Special symbol. */ 872 unsigned char r_ssym[1]; 873 /* Third relocation. */ 874 unsigned char r_type3[1]; 875 /* Second relocation. */ 876 unsigned char r_type2[1]; 877 /* First relocation. */ 878 unsigned char r_type[1]; 879 } Elf64_Mips_External_Rel; 880 881 typedef struct 882 { 883 /* Address of relocation. */ 884 bfd_vma r_offset; 885 /* Symbol index. */ 886 unsigned long r_sym; 887 /* Special symbol. */ 888 unsigned char r_ssym; 889 /* Third relocation. */ 890 unsigned char r_type3; 891 /* Second relocation. */ 892 unsigned char r_type2; 893 /* First relocation. */ 894 unsigned char r_type; 895 } Elf64_Mips_Internal_Rel; 896 897 /* An entry in a 64 bit SHT_RELA section. */ 898 899 typedef struct 900 { 901 /* Address of relocation. */ 902 unsigned char r_offset[8]; 903 /* Symbol index. */ 904 unsigned char r_sym[4]; 905 /* Special symbol. */ 906 unsigned char r_ssym[1]; 907 /* Third relocation. */ 908 unsigned char r_type3[1]; 909 /* Second relocation. */ 910 unsigned char r_type2[1]; 911 /* First relocation. */ 912 unsigned char r_type[1]; 913 /* Addend. */ 914 unsigned char r_addend[8]; 915 } Elf64_Mips_External_Rela; 916 917 typedef struct 918 { 919 /* Address of relocation. */ 920 bfd_vma r_offset; 921 /* Symbol index. */ 922 unsigned long r_sym; 923 /* Special symbol. */ 924 unsigned char r_ssym; 925 /* Third relocation. */ 926 unsigned char r_type3; 927 /* Second relocation. */ 928 unsigned char r_type2; 929 /* First relocation. */ 930 unsigned char r_type; 931 /* Addend. */ 932 bfd_signed_vma r_addend; 933 } Elf64_Mips_Internal_Rela; 934 935 /* MIPS ELF 64 relocation info access macros. */ 936 #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) 937 #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) 938 #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) 939 #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff) 940 941 /* Values found in the r_ssym field of a relocation entry. */ 942 943 /* No relocation. */ 944 #define RSS_UNDEF 0 945 946 /* Value of GP. */ 947 #define RSS_GP 1 948 949 /* Value of GP in object being relocated. */ 950 #define RSS_GP0 2 951 952 /* Address of location being relocated. */ 953 #define RSS_LOC 3 954 955 /* A SHT_MIPS_OPTIONS section contains a series of options, each of 956 which starts with this header. */ 957 958 typedef struct 959 { 960 /* Type of option. */ 961 unsigned char kind[1]; 962 /* Size of option descriptor, including header. */ 963 unsigned char size[1]; 964 /* Section index of affected section, or 0 for global option. */ 965 unsigned char section[2]; 966 /* Information specific to this kind of option. */ 967 unsigned char info[4]; 968 } Elf_External_Options; 969 970 typedef struct 971 { 972 /* Type of option. */ 973 unsigned char kind; 974 /* Size of option descriptor, including header. */ 975 unsigned char size; 976 /* Section index of affected section, or 0 for global option. */ 977 unsigned short section; 978 /* Information specific to this kind of option. */ 979 unsigned long info; 980 } Elf_Internal_Options; 981 982 /* MIPS ELF option header swapping routines. */ 983 extern void bfd_mips_elf_swap_options_in 984 (bfd *, const Elf_External_Options *, Elf_Internal_Options *); 985 extern void bfd_mips_elf_swap_options_out 986 (bfd *, const Elf_Internal_Options *, Elf_External_Options *); 987 988 /* Values which may appear in the kind field of an Elf_Options 989 structure. */ 990 991 /* Undefined. */ 992 #define ODK_NULL 0 993 994 /* Register usage and GP value. */ 995 #define ODK_REGINFO 1 996 997 /* Exception processing information. */ 998 #define ODK_EXCEPTIONS 2 999 1000 /* Section padding information. */ 1001 #define ODK_PAD 3 1002 1003 /* Hardware workarounds performed. */ 1004 #define ODK_HWPATCH 4 1005 1006 /* Fill value used by the linker. */ 1007 #define ODK_FILL 5 1008 1009 /* Reserved space for desktop tools. */ 1010 #define ODK_TAGS 6 1011 1012 /* Hardware workarounds, AND bits when merging. */ 1013 #define ODK_HWAND 7 1014 1015 /* Hardware workarounds, OR bits when merging. */ 1016 #define ODK_HWOR 8 1017 1018 /* GP group to use for text/data sections. */ 1019 #define ODK_GP_GROUP 9 1020 1021 /* ID information. */ 1022 #define ODK_IDENT 10 1023 1024 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo 1025 structure. In the 64 bit ABI, it is the following structure. The 1026 info field of the options header is not used. */ 1027 1028 typedef struct 1029 { 1030 /* Mask of general purpose registers used. */ 1031 unsigned char ri_gprmask[4]; 1032 /* Padding. */ 1033 unsigned char ri_pad[4]; 1034 /* Mask of co-processor registers used. */ 1035 unsigned char ri_cprmask[4][4]; 1036 /* GP register value for this object file. */ 1037 unsigned char ri_gp_value[8]; 1038 } Elf64_External_RegInfo; 1039 1040 typedef struct 1041 { 1042 /* Mask of general purpose registers used. */ 1043 unsigned long ri_gprmask; 1044 /* Padding. */ 1045 unsigned long ri_pad; 1046 /* Mask of co-processor registers used. */ 1047 unsigned long ri_cprmask[4]; 1048 /* GP register value for this object file. */ 1049 bfd_vma ri_gp_value; 1050 } Elf64_Internal_RegInfo; 1051 1052 typedef struct 1053 { 1054 /* The hash value computed from the name of the corresponding 1055 dynamic symbol. */ 1056 unsigned char ms_hash_value[4]; 1057 /* Contains both the dynamic relocation index and the symbol flags 1058 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used 1059 to access the individual values. The dynamic relocation index 1060 identifies the first entry in the .rel.dyn section that 1061 references the dynamic symbol corresponding to this msym entry. 1062 If the index is 0, no dynamic relocations are associated with the 1063 symbol. The symbol flags field is reserved for future use. */ 1064 unsigned char ms_info[4]; 1065 } Elf32_External_Msym; 1066 1067 typedef struct 1068 { 1069 /* The hash value computed from the name of the corresponding 1070 dynamic symbol. */ 1071 unsigned long ms_hash_value; 1072 /* Contains both the dynamic relocation index and the symbol flags 1073 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used 1074 to access the individual values. The dynamic relocation index 1075 identifies the first entry in the .rel.dyn section that 1076 references the dynamic symbol corresponding to this msym entry. 1077 If the index is 0, no dynamic relocations are associated with the 1078 symbol. The symbol flags field is reserved for future use. */ 1079 unsigned long ms_info; 1080 } Elf32_Internal_Msym; 1081 1082 #define ELF32_MS_REL_INDEX(i) ((i) >> 8) 1083 #define ELF32_MS_FLAGS(i) (i) & 0xff) 1084 #define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) 1085 1086 /* MIPS ELF reginfo swapping routines. */ 1087 extern void bfd_mips_elf64_swap_reginfo_in 1088 (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *); 1089 extern void bfd_mips_elf64_swap_reginfo_out 1090 (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *); 1091 1092 /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ 1093 #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ 1094 #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ 1095 #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ 1096 #define OEX_SMM 0x20000 /* Force sequential memory mode. */ 1097 #define OEX_FPDBUG 0x40000 /* Force precise floating-point 1098 exceptions (debug mode). */ 1099 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ 1100 1101 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ 1102 #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ 1103 #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ 1104 #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ 1105 #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ 1106 #define OEX_FPU_INEX 0x01 /* Inexact exception. */ 1107 1108 /* Masks for the info word of an ODK_PAD descriptor. */ 1109 #define OPAD_PREFIX 0x01 1110 #define OPAD_POSTFIX 0x02 1111 #define OPAD_SYMBOL 0x04 1112 1113 /* Masks for the info word of an ODK_HWPATCH descriptor. */ 1114 #define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */ 1115 #define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */ 1116 #define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */ 1117 #define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug 1118 (clean == 1). */ 1119 #define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned 1120 load patch. */ 1121 1122 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ 1123 #define OGP_GROUP 0x0000ffff /* GP group number. */ 1124 #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ 1125 1126 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ 1127 #define OHWA0_R4KEOP_CHECKED 0x00000001 1128 #define OHWA0_R4KEOP_CLEAN 0x00000002 1129 1130 1131 /* Object attribute tags. */ 1132 enum 1133 { 1134 /* 0-3 are generic. */ 1135 1136 /* Floating-point ABI used by this object file. */ 1137 Tag_GNU_MIPS_ABI_FP = 4, 1138 1139 /* MSA ABI used by this object file. */ 1140 Tag_GNU_MIPS_ABI_MSA = 8, 1141 }; 1142 1143 /* Object attribute values. */ 1144 enum 1145 { 1146 /* Values defined for Tag_GNU_MIPS_ABI_FP. */ 1147 1148 /* Not tagged or not using any ABIs affected by the differences. */ 1149 Val_GNU_MIPS_ABI_FP_ANY = 0, 1150 1151 /* Using hard-float -mdouble-float. */ 1152 Val_GNU_MIPS_ABI_FP_DOUBLE = 1, 1153 1154 /* Using hard-float -msingle-float. */ 1155 Val_GNU_MIPS_ABI_FP_SINGLE = 2, 1156 1157 /* Using soft-float. */ 1158 Val_GNU_MIPS_ABI_FP_SOFT = 3, 1159 1160 /* Using -mips32r2 -mfp64. */ 1161 Val_GNU_MIPS_ABI_FP_64 = 4, 1162 1163 /* Values defined for Tag_GNU_MIPS_ABI_MSA. */ 1164 1165 /* Not tagged or not using any ABIs affected by the differences. */ 1166 Val_GNU_MIPS_ABI_MSA_ANY = 0, 1167 1168 /* Using 128-bit MSA. */ 1169 Val_GNU_MIPS_ABI_MSA_128 = 1, 1170 }; 1171 1172 #endif /* _ELF_MIPS_H */ 1173