1 /* MIPS ELF support for BFD. 2 Copyright (C) 1993-2014 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 3 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., 51 Franklin Street - Fifth Floor, Boston, 23 MA 02110-1301, USA. */ 24 25 /* This file holds definitions specific to the MIPS ELF ABI. Note 26 that most of this is not actually implemented by BFD. */ 27 28 #ifndef _ELF_MIPS_H 29 #define _ELF_MIPS_H 30 31 #include "elf/reloc-macros.h" 32 33 /* Relocation types. */ 34 START_RELOC_NUMBERS (elf_mips_reloc_type) 35 RELOC_NUMBER (R_MIPS_NONE, 0) 36 RELOC_NUMBER (R_MIPS_16, 1) 37 RELOC_NUMBER (R_MIPS_32, 2) /* In Elf 64: alias R_MIPS_ADD */ 38 RELOC_NUMBER (R_MIPS_REL32, 3) /* In Elf 64: alias R_MIPS_REL */ 39 RELOC_NUMBER (R_MIPS_26, 4) 40 RELOC_NUMBER (R_MIPS_HI16, 5) 41 RELOC_NUMBER (R_MIPS_LO16, 6) 42 RELOC_NUMBER (R_MIPS_GPREL16, 7) /* In Elf 64: alias R_MIPS_GPREL */ 43 RELOC_NUMBER (R_MIPS_LITERAL, 8) 44 RELOC_NUMBER (R_MIPS_GOT16, 9) /* In Elf 64: alias R_MIPS_GOT */ 45 RELOC_NUMBER (R_MIPS_PC16, 10) 46 RELOC_NUMBER (R_MIPS_CALL16, 11) /* In Elf 64: alias R_MIPS_CALL */ 47 RELOC_NUMBER (R_MIPS_GPREL32, 12) 48 /* The remaining relocs are defined on Irix, although they are not 49 in the MIPS ELF ABI. */ 50 RELOC_NUMBER (R_MIPS_UNUSED1, 13) 51 RELOC_NUMBER (R_MIPS_UNUSED2, 14) 52 RELOC_NUMBER (R_MIPS_UNUSED3, 15) 53 RELOC_NUMBER (R_MIPS_SHIFT5, 16) 54 RELOC_NUMBER (R_MIPS_SHIFT6, 17) 55 RELOC_NUMBER (R_MIPS_64, 18) 56 RELOC_NUMBER (R_MIPS_GOT_DISP, 19) 57 RELOC_NUMBER (R_MIPS_GOT_PAGE, 20) 58 RELOC_NUMBER (R_MIPS_GOT_OFST, 21) 59 RELOC_NUMBER (R_MIPS_GOT_HI16, 22) 60 RELOC_NUMBER (R_MIPS_GOT_LO16, 23) 61 RELOC_NUMBER (R_MIPS_SUB, 24) 62 RELOC_NUMBER (R_MIPS_INSERT_A, 25) 63 RELOC_NUMBER (R_MIPS_INSERT_B, 26) 64 RELOC_NUMBER (R_MIPS_DELETE, 27) 65 RELOC_NUMBER (R_MIPS_HIGHER, 28) 66 RELOC_NUMBER (R_MIPS_HIGHEST, 29) 67 RELOC_NUMBER (R_MIPS_CALL_HI16, 30) 68 RELOC_NUMBER (R_MIPS_CALL_LO16, 31) 69 RELOC_NUMBER (R_MIPS_SCN_DISP, 32) 70 RELOC_NUMBER (R_MIPS_REL16, 33) 71 RELOC_NUMBER (R_MIPS_ADD_IMMEDIATE, 34) 72 RELOC_NUMBER (R_MIPS_PJUMP, 35) 73 RELOC_NUMBER (R_MIPS_RELGOT, 36) 74 RELOC_NUMBER (R_MIPS_JALR, 37) 75 /* TLS relocations. */ 76 RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38) 77 RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39) 78 RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40) 79 RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41) 80 RELOC_NUMBER (R_MIPS_TLS_GD, 42) 81 RELOC_NUMBER (R_MIPS_TLS_LDM, 43) 82 RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44) 83 RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45) 84 RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46) 85 RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47) 86 RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48) 87 RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49) 88 RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50) 89 RELOC_NUMBER (R_MIPS_GLOB_DAT, 51) 90 /* Space to grow */ 91 RELOC_NUMBER (R_MIPS_PC21_S2, 60) 92 RELOC_NUMBER (R_MIPS_PC26_S2, 61) 93 RELOC_NUMBER (R_MIPS_PC18_S3, 62) 94 RELOC_NUMBER (R_MIPS_PC19_S2, 63) 95 RELOC_NUMBER (R_MIPS_PCHI16, 64) 96 RELOC_NUMBER (R_MIPS_PCLO16, 65) 97 FAKE_RELOC (R_MIPS_max, 66) 98 /* These relocs are used for the mips16. */ 99 FAKE_RELOC (R_MIPS16_min, 100) 100 RELOC_NUMBER (R_MIPS16_26, 100) 101 RELOC_NUMBER (R_MIPS16_GPREL, 101) 102 RELOC_NUMBER (R_MIPS16_GOT16, 102) 103 RELOC_NUMBER (R_MIPS16_CALL16, 103) 104 RELOC_NUMBER (R_MIPS16_HI16, 104) 105 RELOC_NUMBER (R_MIPS16_LO16, 105) 106 RELOC_NUMBER (R_MIPS16_TLS_GD, 106) 107 RELOC_NUMBER (R_MIPS16_TLS_LDM, 107) 108 RELOC_NUMBER (R_MIPS16_TLS_DTPREL_HI16, 108) 109 RELOC_NUMBER (R_MIPS16_TLS_DTPREL_LO16, 109) 110 RELOC_NUMBER (R_MIPS16_TLS_GOTTPREL, 110) 111 RELOC_NUMBER (R_MIPS16_TLS_TPREL_HI16, 111) 112 RELOC_NUMBER (R_MIPS16_TLS_TPREL_LO16, 112) 113 FAKE_RELOC (R_MIPS16_max, 113) 114 /* These relocations are specific to VxWorks. */ 115 RELOC_NUMBER (R_MIPS_COPY, 126) 116 RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127) 117 118 /* These relocations are specific to microMIPS. */ 119 FAKE_RELOC (R_MICROMIPS_min, 130) 120 RELOC_NUMBER (R_MICROMIPS_26_S1, 133) 121 RELOC_NUMBER (R_MICROMIPS_HI16, 134) 122 RELOC_NUMBER (R_MICROMIPS_LO16, 135) 123 RELOC_NUMBER (R_MICROMIPS_GPREL16, 136) /* In Elf 64: 124 alias R_MICROMIPS_GPREL */ 125 RELOC_NUMBER (R_MICROMIPS_LITERAL, 137) 126 RELOC_NUMBER (R_MICROMIPS_GOT16, 138) /* In Elf 64: 127 alias R_MICROMIPS_GOT */ 128 RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139) 129 RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140) 130 RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141) 131 RELOC_NUMBER (R_MICROMIPS_CALL16, 142) /* In Elf 64: 132 alias R_MICROMIPS_CALL */ 133 RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145) 134 RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146) 135 RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147) 136 RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148) 137 RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149) 138 RELOC_NUMBER (R_MICROMIPS_SUB, 150) 139 RELOC_NUMBER (R_MICROMIPS_HIGHER, 151) 140 RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152) 141 RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153) 142 RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154) 143 RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155) 144 RELOC_NUMBER (R_MICROMIPS_JALR, 156) 145 RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157) 146 /* TLS relocations. */ 147 RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162) 148 RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163) 149 RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164) 150 RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165) 151 RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166) 152 RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169) 153 RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170) 154 /* microMIPS GP- and PC-relative relocations. */ 155 RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172) 156 RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173) 157 FAKE_RELOC (R_MICROMIPS_max, 174) 158 159 /* This was a GNU extension used by embedded-PIC. It was co-opted by 160 mips-linux for exception-handling data. GCC stopped using it in 161 May, 2004, then started using it again for compact unwind tables. */ 162 RELOC_NUMBER (R_MIPS_PC32, 248) 163 RELOC_NUMBER (R_MIPS_EH, 249) 164 /* FIXME: this relocation is used internally by gas. */ 165 RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250) 166 /* These are GNU extensions to enable C++ vtable garbage collection. */ 167 RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253) 168 RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254) 169 END_RELOC_NUMBERS (R_MIPS_maxext) 170 171 /* Processor specific flags for the ELF header e_flags field. */ 172 173 /* At least one .noreorder directive appears in the source. */ 174 #define EF_MIPS_NOREORDER 0x00000001 175 176 /* File contains position independent code. */ 177 #define EF_MIPS_PIC 0x00000002 178 179 /* Code in file uses the standard calling sequence for calling 180 position independent code. */ 181 #define EF_MIPS_CPIC 0x00000004 182 183 /* ??? Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a. */ 184 #define EF_MIPS_XGOT 0x00000008 185 186 /* Code in file uses UCODE (obsolete) */ 187 #define EF_MIPS_UCODE 0x00000010 188 189 /* Code in file uses new ABI (-n32 on Irix 6). */ 190 #define EF_MIPS_ABI2 0x00000020 191 192 /* Process the .MIPS.options section first by ld */ 193 #define EF_MIPS_OPTIONS_FIRST 0x00000080 194 195 /* Indicates code compiled for a 64-bit machine in 32-bit mode 196 (regs are 32-bits wide). */ 197 #define EF_MIPS_32BITMODE 0x00000100 198 199 /* 32-bit machine but FP registers are 64 bit (-mfp64). */ 200 #define EF_MIPS_FP64 0x00000200 201 202 /* Code in file uses the IEEE 754-2008 NaN encoding convention. */ 203 #define EF_MIPS_NAN2008 0x00000400 204 205 /* Architectural Extensions used by this file */ 206 #define EF_MIPS_ARCH_ASE 0x0f000000 207 208 /* Use MDMX multimedia extensions */ 209 #define EF_MIPS_ARCH_ASE_MDMX 0x08000000 210 211 /* Use MIPS-16 ISA extensions */ 212 #define EF_MIPS_ARCH_ASE_M16 0x04000000 213 214 /* Use MICROMIPS ISA extensions. */ 215 #define EF_MIPS_ARCH_ASE_MICROMIPS 0x02000000 216 217 /* Four bit MIPS architecture field. */ 218 #define EF_MIPS_ARCH 0xf0000000 219 220 /* -mips1 code. */ 221 #define E_MIPS_ARCH_1 0x00000000 222 223 /* -mips2 code. */ 224 #define E_MIPS_ARCH_2 0x10000000 225 226 /* -mips3 code. */ 227 #define E_MIPS_ARCH_3 0x20000000 228 229 /* -mips4 code. */ 230 #define E_MIPS_ARCH_4 0x30000000 231 232 /* -mips5 code. */ 233 #define E_MIPS_ARCH_5 0x40000000 234 235 /* -mips32 code. */ 236 #define E_MIPS_ARCH_32 0x50000000 237 238 /* -mips64 code. */ 239 #define E_MIPS_ARCH_64 0x60000000 240 241 /* -mips32r2 code. */ 242 #define E_MIPS_ARCH_32R2 0x70000000 243 244 /* -mips64r2 code. */ 245 #define E_MIPS_ARCH_64R2 0x80000000 246 247 /* -mips32r6 code. */ 248 #define E_MIPS_ARCH_32R6 0x90000000 249 250 /* -mips64r6 code. */ 251 #define E_MIPS_ARCH_64R6 0xa0000000 252 253 /* The ABI of the file. Also see EF_MIPS_ABI2 above. */ 254 #define EF_MIPS_ABI 0x0000F000 255 256 /* The original o32 abi. */ 257 #define E_MIPS_ABI_O32 0x00001000 258 259 /* O32 extended to work on 64 bit architectures */ 260 #define E_MIPS_ABI_O64 0x00002000 261 262 /* EABI in 32 bit mode */ 263 #define E_MIPS_ABI_EABI32 0x00003000 264 265 /* EABI in 64 bit mode */ 266 #define E_MIPS_ABI_EABI64 0x00004000 267 268 269 /* Machine variant if we know it. This field was invented at Cygnus, 270 but it is hoped that other vendors will adopt it. If some standard 271 is developed, this code should be changed to follow it. */ 272 273 #define EF_MIPS_MACH 0x00FF0000 274 275 /* Cygnus is choosing values between 80 and 9F; 276 00 - 7F should be left for a future standard; 277 the rest are open. */ 278 279 #define E_MIPS_MACH_3900 0x00810000 280 #define E_MIPS_MACH_4010 0x00820000 281 #define E_MIPS_MACH_4100 0x00830000 282 #define E_MIPS_MACH_4650 0x00850000 283 #define E_MIPS_MACH_4120 0x00870000 284 #define E_MIPS_MACH_4111 0x00880000 285 #define E_MIPS_MACH_SB1 0x008a0000 286 #define E_MIPS_MACH_OCTEON 0x008b0000 287 #define E_MIPS_MACH_XLR 0x008c0000 288 #define E_MIPS_MACH_OCTEON2 0x008d0000 289 #define E_MIPS_MACH_OCTEON3 0x008e0000 290 #define E_MIPS_MACH_5400 0x00910000 291 #define E_MIPS_MACH_5900 0x00920000 292 #define E_MIPS_MACH_5500 0x00980000 293 #define E_MIPS_MACH_9000 0x00990000 294 #define E_MIPS_MACH_LS2E 0x00A00000 295 #define E_MIPS_MACH_LS2F 0x00A10000 296 #define E_MIPS_MACH_LS3A 0x00A20000 297 298 /* Processor specific section indices. These sections do not actually 299 exist. Symbols with a st_shndx field corresponding to one of these 300 values have a special meaning. */ 301 302 /* Defined and allocated common symbol. Value is virtual address. If 303 relocated, alignment must be preserved. */ 304 #define SHN_MIPS_ACOMMON SHN_LORESERVE 305 306 /* Defined and allocated text symbol. Value is virtual address. 307 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ 308 #define SHN_MIPS_TEXT (SHN_LORESERVE + 1) 309 310 /* Defined and allocated data symbol. Value is virtual address. 311 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ 312 #define SHN_MIPS_DATA (SHN_LORESERVE + 2) 313 314 /* Small common symbol. */ 315 #define SHN_MIPS_SCOMMON (SHN_LORESERVE + 3) 316 317 /* Small undefined symbol. */ 318 #define SHN_MIPS_SUNDEFINED (SHN_LORESERVE + 4) 319 320 /* Processor specific section types. */ 321 322 /* Section contains the set of dynamic shared objects used when 323 statically linking. */ 324 #define SHT_MIPS_LIBLIST 0x70000000 325 326 /* I'm not sure what this is, but it's used on Irix 5. */ 327 #define SHT_MIPS_MSYM 0x70000001 328 329 /* Section contains list of symbols whose definitions conflict with 330 symbols defined in shared objects. */ 331 #define SHT_MIPS_CONFLICT 0x70000002 332 333 /* Section contains the global pointer table. */ 334 #define SHT_MIPS_GPTAB 0x70000003 335 336 /* Section contains microcode information. The exact format is 337 unspecified. */ 338 #define SHT_MIPS_UCODE 0x70000004 339 340 /* Section contains some sort of debugging information. The exact 341 format is unspecified. It's probably ECOFF symbols. */ 342 #define SHT_MIPS_DEBUG 0x70000005 343 344 /* Section contains register usage information. */ 345 #define SHT_MIPS_REGINFO 0x70000006 346 347 /* ??? */ 348 #define SHT_MIPS_PACKAGE 0x70000007 349 350 /* ??? */ 351 #define SHT_MIPS_PACKSYM 0x70000008 352 353 /* ??? */ 354 #define SHT_MIPS_RELD 0x70000009 355 356 /* Section contains interface information. */ 357 #define SHT_MIPS_IFACE 0x7000000b 358 359 /* Section contains description of contents of another section. */ 360 #define SHT_MIPS_CONTENT 0x7000000c 361 362 /* Section contains miscellaneous options. */ 363 #define SHT_MIPS_OPTIONS 0x7000000d 364 365 /* ??? */ 366 #define SHT_MIPS_SHDR 0x70000010 367 368 /* ??? */ 369 #define SHT_MIPS_FDESC 0x70000011 370 371 /* ??? */ 372 #define SHT_MIPS_EXTSYM 0x70000012 373 374 /* ??? */ 375 #define SHT_MIPS_DENSE 0x70000013 376 377 /* ??? */ 378 #define SHT_MIPS_PDESC 0x70000014 379 380 /* ??? */ 381 #define SHT_MIPS_LOCSYM 0x70000015 382 383 /* ??? */ 384 #define SHT_MIPS_AUXSYM 0x70000016 385 386 /* ??? */ 387 #define SHT_MIPS_OPTSYM 0x70000017 388 389 /* ??? */ 390 #define SHT_MIPS_LOCSTR 0x70000018 391 392 /* ??? */ 393 #define SHT_MIPS_LINE 0x70000019 394 395 /* ??? */ 396 #define SHT_MIPS_RFDESC 0x7000001a 397 398 /* Delta C++: symbol table */ 399 #define SHT_MIPS_DELTASYM 0x7000001b 400 401 /* Delta C++: instance table */ 402 #define SHT_MIPS_DELTAINST 0x7000001c 403 404 /* Delta C++: class table */ 405 #define SHT_MIPS_DELTACLASS 0x7000001d 406 407 /* DWARF debugging section. */ 408 #define SHT_MIPS_DWARF 0x7000001e 409 410 /* Delta C++: declarations */ 411 #define SHT_MIPS_DELTADECL 0x7000001f 412 413 /* List of libraries the binary depends on. Includes a time stamp, version 414 number. */ 415 #define SHT_MIPS_SYMBOL_LIB 0x70000020 416 417 /* Events section. */ 418 #define SHT_MIPS_EVENTS 0x70000021 419 420 /* ??? */ 421 #define SHT_MIPS_TRANSLATE 0x70000022 422 423 /* Special pixie sections */ 424 #define SHT_MIPS_PIXIE 0x70000023 425 426 /* Address translation table (for debug info) */ 427 #define SHT_MIPS_XLATE 0x70000024 428 429 /* SGI internal address translation table (for debug info) */ 430 #define SHT_MIPS_XLATE_DEBUG 0x70000025 431 432 /* Intermediate code */ 433 #define SHT_MIPS_WHIRL 0x70000026 434 435 /* C++ exception handling region info */ 436 #define SHT_MIPS_EH_REGION 0x70000027 437 438 /* Obsolete address translation table (for debug info) */ 439 #define SHT_MIPS_XLATE_OLD 0x70000028 440 441 /* Runtime procedure descriptor table exception information (ucode) ??? */ 442 #define SHT_MIPS_PDR_EXCEPTION 0x70000029 443 444 /* ABI related flags section. */ 445 #define SHT_MIPS_ABIFLAGS 0x7000002a 446 447 /* A section of type SHT_MIPS_LIBLIST contains an array of the 448 following structure. The sh_link field is the section index of the 449 string table. The sh_info field is the number of entries in the 450 section. */ 451 typedef struct 452 { 453 /* String table index for name of shared object. */ 454 unsigned long l_name; 455 /* Time stamp. */ 456 unsigned long l_time_stamp; 457 /* Checksum of symbol names and common sizes. */ 458 unsigned long l_checksum; 459 /* String table index for version. */ 460 unsigned long l_version; 461 /* Flags. */ 462 unsigned long l_flags; 463 } Elf32_Lib; 464 465 /* The external version of Elf32_Lib. */ 466 typedef struct 467 { 468 unsigned char l_name[4]; 469 unsigned char l_time_stamp[4]; 470 unsigned char l_checksum[4]; 471 unsigned char l_version[4]; 472 unsigned char l_flags[4]; 473 } Elf32_External_Lib; 474 475 /* The l_flags field of an Elf32_Lib structure may contain the 476 following flags. */ 477 478 /* Require an exact match at runtime. */ 479 #define LL_EXACT_MATCH 0x00000001 480 481 /* Ignore version incompatibilities at runtime. */ 482 #define LL_IGNORE_INT_VER 0x00000002 483 484 /* Require matching minor version number. */ 485 #define LL_REQUIRE_MINOR 0x00000004 486 487 /* ??? */ 488 #define LL_EXPORTS 0x00000008 489 490 /* Delay loading of this library until really needed. */ 491 #define LL_DELAY_LOAD 0x00000010 492 493 /* ??? Delta C++ stuff ??? */ 494 #define LL_DELTA 0x00000020 495 496 497 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the 498 .dynsym section. Each element has the following type. */ 499 typedef unsigned long Elf32_Conflict; 500 typedef unsigned char Elf32_External_Conflict[4]; 501 502 typedef unsigned long Elf64_Conflict; 503 typedef unsigned char Elf64_External_Conflict[8]; 504 505 /* A section of type SHT_MIPS_GPTAB contains information about how 506 much GP space would be required for different -G arguments. This 507 information is only used so that the linker can provide informative 508 suggestions as to the best -G value to use. The sh_info field is 509 the index of the section for which this information applies. The 510 contents of the section are an array of the following union. The 511 first element uses the gt_header field. The remaining elements use 512 the gt_entry field. */ 513 typedef union 514 { 515 struct 516 { 517 /* -G value actually used for this object file. */ 518 unsigned long gt_current_g_value; 519 /* Unused. */ 520 unsigned long gt_unused; 521 } gt_header; 522 struct 523 { 524 /* If this -G argument has been used... */ 525 unsigned long gt_g_value; 526 /* ...this many GP section bytes would be required. */ 527 unsigned long gt_bytes; 528 } gt_entry; 529 } Elf32_gptab; 530 531 /* The external version of Elf32_gptab. */ 532 533 typedef union 534 { 535 struct 536 { 537 unsigned char gt_current_g_value[4]; 538 unsigned char gt_unused[4]; 539 } gt_header; 540 struct 541 { 542 unsigned char gt_g_value[4]; 543 unsigned char gt_bytes[4]; 544 } gt_entry; 545 } Elf32_External_gptab; 546 547 /* A section of type SHT_MIPS_REGINFO contains the following 548 structure. */ 549 typedef struct 550 { 551 /* Mask of general purpose registers used. */ 552 unsigned long ri_gprmask; 553 /* Mask of co-processor registers used. */ 554 unsigned long ri_cprmask[4]; 555 /* GP register value for this object file. */ 556 long ri_gp_value; 557 } Elf32_RegInfo; 558 559 /* The external version of the Elf_RegInfo structure. */ 560 typedef struct 561 { 562 unsigned char ri_gprmask[4]; 563 unsigned char ri_cprmask[4][4]; 564 unsigned char ri_gp_value[4]; 565 } Elf32_External_RegInfo; 566 567 /* MIPS ELF .reginfo swapping routines. */ 568 extern void bfd_mips_elf32_swap_reginfo_in 569 (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *); 570 extern void bfd_mips_elf32_swap_reginfo_out 571 (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *); 572 573 /* Processor specific section flags. */ 574 575 /* This section must be in the global data area. */ 576 #define SHF_MIPS_GPREL 0x10000000 577 578 /* This section should be merged. */ 579 #define SHF_MIPS_MERGE 0x20000000 580 581 /* This section contains address data of size implied by section 582 element size. */ 583 #define SHF_MIPS_ADDR 0x40000000 584 585 /* This section contains string data. */ 586 #define SHF_MIPS_STRING 0x80000000 587 588 /* This section may not be stripped. */ 589 #define SHF_MIPS_NOSTRIP 0x08000000 590 591 /* This section is local to threads. */ 592 #define SHF_MIPS_LOCAL 0x04000000 593 594 /* Linker should generate implicit weak names for this section. */ 595 #define SHF_MIPS_NAMES 0x02000000 596 597 /* Section contais text/data which may be replicated in other sections. 598 Linker should retain only one copy. */ 599 #define SHF_MIPS_NODUPES 0x01000000 600 601 /* Processor specific program header types. */ 602 603 /* Register usage information. Identifies one .reginfo section. */ 604 #define PT_MIPS_REGINFO 0x70000000 605 606 /* Runtime procedure table. */ 607 #define PT_MIPS_RTPROC 0x70000001 608 609 /* .MIPS.options section. */ 610 #define PT_MIPS_OPTIONS 0x70000002 611 612 /* Records ABI related flags. */ 613 #define PT_MIPS_ABIFLAGS 0x70000003 614 615 /* Processor specific dynamic array tags. */ 616 617 /* 32 bit version number for runtime linker interface. */ 618 #define DT_MIPS_RLD_VERSION 0x70000001 619 620 /* Time stamp. */ 621 #define DT_MIPS_TIME_STAMP 0x70000002 622 623 /* Checksum of external strings and common sizes. */ 624 #define DT_MIPS_ICHECKSUM 0x70000003 625 626 /* Index of version string in string table. */ 627 #define DT_MIPS_IVERSION 0x70000004 628 629 /* 32 bits of flags. */ 630 #define DT_MIPS_FLAGS 0x70000005 631 632 /* Base address of the segment. */ 633 #define DT_MIPS_BASE_ADDRESS 0x70000006 634 635 /* ??? */ 636 #define DT_MIPS_MSYM 0x70000007 637 638 /* Address of .conflict section. */ 639 #define DT_MIPS_CONFLICT 0x70000008 640 641 /* Address of .liblist section. */ 642 #define DT_MIPS_LIBLIST 0x70000009 643 644 /* Number of local global offset table entries. */ 645 #define DT_MIPS_LOCAL_GOTNO 0x7000000a 646 647 /* Number of entries in the .conflict section. */ 648 #define DT_MIPS_CONFLICTNO 0x7000000b 649 650 /* Number of entries in the .liblist section. */ 651 #define DT_MIPS_LIBLISTNO 0x70000010 652 653 /* Number of entries in the .dynsym section. */ 654 #define DT_MIPS_SYMTABNO 0x70000011 655 656 /* Index of first external dynamic symbol not referenced locally. */ 657 #define DT_MIPS_UNREFEXTNO 0x70000012 658 659 /* Index of first dynamic symbol in global offset table. */ 660 #define DT_MIPS_GOTSYM 0x70000013 661 662 /* Number of page table entries in global offset table. */ 663 #define DT_MIPS_HIPAGENO 0x70000014 664 665 /* Address of run time loader map, used for debugging. */ 666 #define DT_MIPS_RLD_MAP 0x70000016 667 668 /* Delta C++ class definition. */ 669 #define DT_MIPS_DELTA_CLASS 0x70000017 670 671 /* Number of entries in DT_MIPS_DELTA_CLASS. */ 672 #define DT_MIPS_DELTA_CLASS_NO 0x70000018 673 674 /* Delta C++ class instances. */ 675 #define DT_MIPS_DELTA_INSTANCE 0x70000019 676 677 /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ 678 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a 679 680 /* Delta relocations. */ 681 #define DT_MIPS_DELTA_RELOC 0x7000001b 682 683 /* Number of entries in DT_MIPS_DELTA_RELOC. */ 684 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c 685 686 /* Delta symbols that Delta relocations refer to. */ 687 #define DT_MIPS_DELTA_SYM 0x7000001d 688 689 /* Number of entries in DT_MIPS_DELTA_SYM. */ 690 #define DT_MIPS_DELTA_SYM_NO 0x7000001e 691 692 /* Delta symbols that hold class declarations. */ 693 #define DT_MIPS_DELTA_CLASSSYM 0x70000020 694 695 /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ 696 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 697 698 /* Flags indicating information about C++ flavor. */ 699 #define DT_MIPS_CXX_FLAGS 0x70000022 700 701 /* Pixie information (???). */ 702 #define DT_MIPS_PIXIE_INIT 0x70000023 703 704 /* Address of .MIPS.symlib */ 705 #define DT_MIPS_SYMBOL_LIB 0x70000024 706 707 /* The GOT index of the first PTE for a segment */ 708 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 709 710 /* The GOT index of the first PTE for a local symbol */ 711 #define DT_MIPS_LOCAL_GOTIDX 0x70000026 712 713 /* The GOT index of the first PTE for a hidden symbol */ 714 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 715 716 /* The GOT index of the first PTE for a protected symbol */ 717 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 718 719 /* Address of `.MIPS.options'. */ 720 #define DT_MIPS_OPTIONS 0x70000029 721 722 /* Address of `.interface'. */ 723 #define DT_MIPS_INTERFACE 0x7000002a 724 725 /* ??? */ 726 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b 727 728 /* Size of the .interface section. */ 729 #define DT_MIPS_INTERFACE_SIZE 0x7000002c 730 731 /* Size of rld_text_resolve function stored in the GOT. */ 732 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d 733 734 /* Default suffix of DSO to be added by rld on dlopen() calls. */ 735 #define DT_MIPS_PERF_SUFFIX 0x7000002e 736 737 /* Size of compact relocation section (O32). */ 738 #define DT_MIPS_COMPACT_SIZE 0x7000002f 739 740 /* GP value for auxiliary GOTs. */ 741 #define DT_MIPS_GP_VALUE 0x70000030 742 743 /* Address of auxiliary .dynamic. */ 744 #define DT_MIPS_AUX_DYNAMIC 0x70000031 745 746 /* Address of the base of the PLTGOT. */ 747 #define DT_MIPS_PLTGOT 0x70000032 748 749 /* Points to the base of a writable PLT. */ 750 #define DT_MIPS_RWPLT 0x70000034 751 752 /* Address of run time loader map, used for debugging. */ 753 #define DT_MIPS_RLD_MAP2 0x70000035 754 755 /* Flags which may appear in a DT_MIPS_FLAGS entry. */ 756 757 /* No flags. */ 758 #define RHF_NONE 0x00000000 759 760 /* Uses shortcut pointers. */ 761 #define RHF_QUICKSTART 0x00000001 762 763 /* Hash size is not a power of two. */ 764 #define RHF_NOTPOT 0x00000002 765 766 /* Ignore LD_LIBRARY_PATH. */ 767 #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004 768 769 /* DSO address may not be relocated. */ 770 #define RHF_NO_MOVE 0x00000008 771 772 /* SGI specific features. */ 773 #define RHF_SGI_ONLY 0x00000010 774 775 /* Guarantee that .init will finish executing before any non-init 776 code in DSO is called. */ 777 #define RHF_GUARANTEE_INIT 0x00000020 778 779 /* Contains Delta C++ code. */ 780 #define RHF_DELTA_C_PLUS_PLUS 0x00000040 781 782 /* Guarantee that .init will start executing before any non-init 783 code in DSO is called. */ 784 #define RHF_GUARANTEE_START_INIT 0x00000080 785 786 /* Generated by pixie. */ 787 #define RHF_PIXIE 0x00000100 788 789 /* Delay-load DSO by default. */ 790 #define RHF_DEFAULT_DELAY_LOAD 0x00000200 791 792 /* Object may be requickstarted */ 793 #define RHF_REQUICKSTART 0x00000400 794 795 /* Object has been requickstarted */ 796 #define RHF_REQUICKSTARTED 0x00000800 797 798 /* Generated by cord. */ 799 #define RHF_CORD 0x00001000 800 801 /* Object contains no unresolved undef symbols. */ 802 #define RHF_NO_UNRES_UNDEF 0x00002000 803 804 /* Symbol table is in a safe order. */ 805 #define RHF_RLD_ORDER_SAFE 0x00004000 806 807 /* Special values for the st_other field in the symbol table. These 808 are used in an Irix 5 dynamic symbol table. */ 809 810 #define STO_DEFAULT STV_DEFAULT 811 #define STO_INTERNAL STV_INTERNAL 812 #define STO_HIDDEN STV_HIDDEN 813 #define STO_PROTECTED STV_PROTECTED 814 815 /* Two topmost bits denote the MIPS ISA for .text symbols: 816 + 00 -- standard MIPS code, 817 + 10 -- microMIPS code, 818 + 11 -- MIPS16 code; requires the following two bits to be set too. 819 Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC. See below 820 for details. */ 821 #define STO_MIPS_ISA (3 << 6) 822 823 /* The mask spanning the rest of MIPS psABI flags. At most one is expected 824 to be set except for STO_MIPS16. */ 825 #define STO_MIPS_FLAGS (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1))) 826 827 /* The MIPS psABI was updated in 2008 with support for PLTs and copy 828 relocs. There are therefore two types of nonzero SHN_UNDEF functions: 829 PLT entries and traditional MIPS lazy binding stubs. We mark the former 830 with STO_MIPS_PLT to distinguish them from the latter. */ 831 #define STO_MIPS_PLT 0x8 832 #define ELF_ST_IS_MIPS_PLT(other) \ 833 ((ELF_ST_IS_MIPS16 (other) \ 834 ? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS)) \ 835 : ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT) 836 #define ELF_ST_SET_MIPS_PLT(other) \ 837 ((ELF_ST_IS_MIPS16 (other) \ 838 ? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS)) \ 839 : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT) 840 841 /* This value is used to mark PIC functions in an object that mixes 842 PIC and non-PIC. Note that this bit overlaps with STO_MIPS16, 843 although MIPS16 symbols are never considered to be MIPS_PIC. */ 844 #define STO_MIPS_PIC 0x20 845 #define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC) 846 #define ELF_ST_SET_MIPS_PIC(other) \ 847 ((ELF_ST_IS_MIPS16 (other) \ 848 ? ((other) & ~(STO_MIPS16 | STO_MIPS_FLAGS)) \ 849 : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PIC) 850 851 /* This value is used for a mips16 .text symbol. */ 852 #define STO_MIPS16 0xf0 853 #define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16) 854 #define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16) 855 856 /* This value is used for a microMIPS .text symbol. To distinguish from 857 STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS. The 858 mask is STO_MIPS_ISA. */ 859 #define STO_MICROMIPS (2 << 6) 860 #define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS) 861 #define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS) 862 863 /* Whether code compression (either of the MIPS16 or the microMIPS ASEs) 864 has been indicated for a .text symbol. */ 865 #define ELF_ST_IS_COMPRESSED(other) \ 866 (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other)) 867 868 /* This bit is used on Irix to indicate a symbol whose definition 869 is optional - if, at final link time, it cannot be found, no 870 error message should be produced. */ 871 #define STO_OPTIONAL (1 << 2) 872 /* A macro to examine the STO_OPTIONAL bit. */ 873 #define ELF_MIPS_IS_OPTIONAL(other) ((other) & STO_OPTIONAL) 874 875 /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each 876 relocation entry specifies up to three actual relocations, all at 877 the same address. The first relocation which required a symbol 878 uses the symbol in the r_sym field. The second relocation which 879 requires a symbol uses the symbol in the r_ssym field. If all 880 three relocations require a symbol, the third one uses a zero 881 value. */ 882 883 /* An entry in a 64 bit SHT_REL section. */ 884 885 typedef struct 886 { 887 /* Address of relocation. */ 888 unsigned char r_offset[8]; 889 /* Symbol index. */ 890 unsigned char r_sym[4]; 891 /* Special symbol. */ 892 unsigned char r_ssym[1]; 893 /* Third relocation. */ 894 unsigned char r_type3[1]; 895 /* Second relocation. */ 896 unsigned char r_type2[1]; 897 /* First relocation. */ 898 unsigned char r_type[1]; 899 } Elf64_Mips_External_Rel; 900 901 typedef struct 902 { 903 /* Address of relocation. */ 904 bfd_vma r_offset; 905 /* Symbol index. */ 906 unsigned long r_sym; 907 /* Special symbol. */ 908 unsigned char r_ssym; 909 /* Third relocation. */ 910 unsigned char r_type3; 911 /* Second relocation. */ 912 unsigned char r_type2; 913 /* First relocation. */ 914 unsigned char r_type; 915 } Elf64_Mips_Internal_Rel; 916 917 /* An entry in a 64 bit SHT_RELA section. */ 918 919 typedef struct 920 { 921 /* Address of relocation. */ 922 unsigned char r_offset[8]; 923 /* Symbol index. */ 924 unsigned char r_sym[4]; 925 /* Special symbol. */ 926 unsigned char r_ssym[1]; 927 /* Third relocation. */ 928 unsigned char r_type3[1]; 929 /* Second relocation. */ 930 unsigned char r_type2[1]; 931 /* First relocation. */ 932 unsigned char r_type[1]; 933 /* Addend. */ 934 unsigned char r_addend[8]; 935 } Elf64_Mips_External_Rela; 936 937 typedef struct 938 { 939 /* Address of relocation. */ 940 bfd_vma r_offset; 941 /* Symbol index. */ 942 unsigned long r_sym; 943 /* Special symbol. */ 944 unsigned char r_ssym; 945 /* Third relocation. */ 946 unsigned char r_type3; 947 /* Second relocation. */ 948 unsigned char r_type2; 949 /* First relocation. */ 950 unsigned char r_type; 951 /* Addend. */ 952 bfd_signed_vma r_addend; 953 } Elf64_Mips_Internal_Rela; 954 955 /* MIPS ELF 64 relocation info access macros. */ 956 #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) 957 #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) 958 #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) 959 #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff) 960 961 /* Values found in the r_ssym field of a relocation entry. */ 962 963 /* No relocation. */ 964 #define RSS_UNDEF 0 965 966 /* Value of GP. */ 967 #define RSS_GP 1 968 969 /* Value of GP in object being relocated. */ 970 #define RSS_GP0 2 971 972 /* Address of location being relocated. */ 973 #define RSS_LOC 3 974 975 /* A SHT_MIPS_OPTIONS section contains a series of options, each of 976 which starts with this header. */ 977 978 typedef struct 979 { 980 /* Type of option. */ 981 unsigned char kind[1]; 982 /* Size of option descriptor, including header. */ 983 unsigned char size[1]; 984 /* Section index of affected section, or 0 for global option. */ 985 unsigned char section[2]; 986 /* Information specific to this kind of option. */ 987 unsigned char info[4]; 988 } Elf_External_Options; 989 990 typedef struct 991 { 992 /* Type of option. */ 993 unsigned char kind; 994 /* Size of option descriptor, including header. */ 995 unsigned char size; 996 /* Section index of affected section, or 0 for global option. */ 997 unsigned short section; 998 /* Information specific to this kind of option. */ 999 unsigned long info; 1000 } Elf_Internal_Options; 1001 1002 /* MIPS ELF option header swapping routines. */ 1003 extern void bfd_mips_elf_swap_options_in 1004 (bfd *, const Elf_External_Options *, Elf_Internal_Options *); 1005 extern void bfd_mips_elf_swap_options_out 1006 (bfd *, const Elf_Internal_Options *, Elf_External_Options *); 1007 1008 /* Values which may appear in the kind field of an Elf_Options 1009 structure. */ 1010 1011 /* Undefined. */ 1012 #define ODK_NULL 0 1013 1014 /* Register usage and GP value. */ 1015 #define ODK_REGINFO 1 1016 1017 /* Exception processing information. */ 1018 #define ODK_EXCEPTIONS 2 1019 1020 /* Section padding information. */ 1021 #define ODK_PAD 3 1022 1023 /* Hardware workarounds performed. */ 1024 #define ODK_HWPATCH 4 1025 1026 /* Fill value used by the linker. */ 1027 #define ODK_FILL 5 1028 1029 /* Reserved space for desktop tools. */ 1030 #define ODK_TAGS 6 1031 1032 /* Hardware workarounds, AND bits when merging. */ 1033 #define ODK_HWAND 7 1034 1035 /* Hardware workarounds, OR bits when merging. */ 1036 #define ODK_HWOR 8 1037 1038 /* GP group to use for text/data sections. */ 1039 #define ODK_GP_GROUP 9 1040 1041 /* ID information. */ 1042 #define ODK_IDENT 10 1043 1044 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo 1045 structure. In the 64 bit ABI, it is the following structure. The 1046 info field of the options header is not used. */ 1047 1048 typedef struct 1049 { 1050 /* Mask of general purpose registers used. */ 1051 unsigned char ri_gprmask[4]; 1052 /* Padding. */ 1053 unsigned char ri_pad[4]; 1054 /* Mask of co-processor registers used. */ 1055 unsigned char ri_cprmask[4][4]; 1056 /* GP register value for this object file. */ 1057 unsigned char ri_gp_value[8]; 1058 } Elf64_External_RegInfo; 1059 1060 typedef struct 1061 { 1062 /* Mask of general purpose registers used. */ 1063 unsigned long ri_gprmask; 1064 /* Padding. */ 1065 unsigned long ri_pad; 1066 /* Mask of co-processor registers used. */ 1067 unsigned long ri_cprmask[4]; 1068 /* GP register value for this object file. */ 1069 bfd_vma ri_gp_value; 1070 } Elf64_Internal_RegInfo; 1071 1072 /* ABI Flags structure version 0. */ 1073 1074 typedef struct 1075 { 1076 /* Version of flags structure. */ 1077 unsigned char version[2]; 1078 /* The level of the ISA: 1-5, 32, 64. */ 1079 unsigned char isa_level[1]; 1080 /* The revision of ISA: 0 for MIPS V and below, 1-n otherwise. */ 1081 unsigned char isa_rev[1]; 1082 /* The size of general purpose registers. */ 1083 unsigned char gpr_size[1]; 1084 /* The size of co-processor 1 registers. */ 1085 unsigned char cpr1_size[1]; 1086 /* The size of co-processor 2 registers. */ 1087 unsigned char cpr2_size[1]; 1088 /* The floating-point ABI. */ 1089 unsigned char fp_abi[1]; 1090 /* Processor-specific extension. */ 1091 unsigned char isa_ext[4]; 1092 /* Mask of ASEs used. */ 1093 unsigned char ases[4]; 1094 /* Mask of general flags. */ 1095 unsigned char flags1[4]; 1096 unsigned char flags2[4]; 1097 } Elf_External_ABIFlags_v0; 1098 1099 typedef struct 1100 { 1101 /* Version of flags structure. */ 1102 unsigned short version; 1103 /* The level of the ISA: 1-5, 32, 64. */ 1104 unsigned char isa_level; 1105 /* The revision of ISA: 0 for MIPS V and below, 1-n otherwise. */ 1106 unsigned char isa_rev; 1107 /* The size of general purpose registers. */ 1108 unsigned char gpr_size; 1109 /* The size of co-processor 1 registers. */ 1110 unsigned char cpr1_size; 1111 /* The size of co-processor 2 registers. */ 1112 unsigned char cpr2_size; 1113 /* The floating-point ABI. */ 1114 unsigned char fp_abi; 1115 /* Processor-specific extension. */ 1116 unsigned long isa_ext; 1117 /* Mask of ASEs used. */ 1118 unsigned long ases; 1119 /* Mask of general flags. */ 1120 unsigned long flags1; 1121 unsigned long flags2; 1122 } Elf_Internal_ABIFlags_v0; 1123 1124 typedef struct 1125 { 1126 /* The hash value computed from the name of the corresponding 1127 dynamic symbol. */ 1128 unsigned char ms_hash_value[4]; 1129 /* Contains both the dynamic relocation index and the symbol flags 1130 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used 1131 to access the individual values. The dynamic relocation index 1132 identifies the first entry in the .rel.dyn section that 1133 references the dynamic symbol corresponding to this msym entry. 1134 If the index is 0, no dynamic relocations are associated with the 1135 symbol. The symbol flags field is reserved for future use. */ 1136 unsigned char ms_info[4]; 1137 } Elf32_External_Msym; 1138 1139 typedef struct 1140 { 1141 /* The hash value computed from the name of the corresponding 1142 dynamic symbol. */ 1143 unsigned long ms_hash_value; 1144 /* Contains both the dynamic relocation index and the symbol flags 1145 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used 1146 to access the individual values. The dynamic relocation index 1147 identifies the first entry in the .rel.dyn section that 1148 references the dynamic symbol corresponding to this msym entry. 1149 If the index is 0, no dynamic relocations are associated with the 1150 symbol. The symbol flags field is reserved for future use. */ 1151 unsigned long ms_info; 1152 } Elf32_Internal_Msym; 1153 1154 #define ELF32_MS_REL_INDEX(i) ((i) >> 8) 1155 #define ELF32_MS_FLAGS(i) (i) & 0xff) 1156 #define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) 1157 1158 /* MIPS ELF reginfo swapping routines. */ 1159 extern void bfd_mips_elf64_swap_reginfo_in 1160 (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *); 1161 extern void bfd_mips_elf64_swap_reginfo_out 1162 (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *); 1163 1164 /* MIPS ELF flags swapping routines. */ 1165 extern void bfd_mips_elf_swap_abiflags_v0_in 1166 (bfd *, const Elf_External_ABIFlags_v0 *, Elf_Internal_ABIFlags_v0 *); 1167 extern void bfd_mips_elf_swap_abiflags_v0_out 1168 (bfd *, const Elf_Internal_ABIFlags_v0 *, Elf_External_ABIFlags_v0 *); 1169 1170 /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ 1171 #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ 1172 #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ 1173 #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ 1174 #define OEX_SMM 0x20000 /* Force sequential memory mode. */ 1175 #define OEX_FPDBUG 0x40000 /* Force precise floating-point 1176 exceptions (debug mode). */ 1177 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ 1178 1179 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ 1180 #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ 1181 #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ 1182 #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ 1183 #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ 1184 #define OEX_FPU_INEX 0x01 /* Inexact exception. */ 1185 1186 /* Masks for the info word of an ODK_PAD descriptor. */ 1187 #define OPAD_PREFIX 0x01 1188 #define OPAD_POSTFIX 0x02 1189 #define OPAD_SYMBOL 0x04 1190 1191 /* Masks for the info word of an ODK_HWPATCH descriptor. */ 1192 #define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */ 1193 #define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */ 1194 #define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */ 1195 #define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug 1196 (clean == 1). */ 1197 #define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned 1198 load patch. */ 1199 1200 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ 1201 #define OGP_GROUP 0x0000ffff /* GP group number. */ 1202 #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ 1203 1204 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ 1205 #define OHWA0_R4KEOP_CHECKED 0x00000001 1206 #define OHWA0_R4KEOP_CLEAN 0x00000002 1207 1208 /* Values for the xxx_size bytes of an ABI flags structure. */ 1209 1210 #define AFL_REG_NONE 0x00 /* No registers. */ 1211 #define AFL_REG_32 0x01 /* 32-bit registers. */ 1212 #define AFL_REG_64 0x02 /* 64-bit registers. */ 1213 #define AFL_REG_128 0x03 /* 128-bit registers. */ 1214 1215 /* Masks for the ases word of an ABI flags structure. */ 1216 1217 #define AFL_ASE_DSP 0x00000001 /* DSP ASE. */ 1218 #define AFL_ASE_DSPR2 0x00000002 /* DSP R2 ASE. */ 1219 #define AFL_ASE_EVA 0x00000004 /* Enhanced VA Scheme. */ 1220 #define AFL_ASE_MCU 0x00000008 /* MCU (MicroController) ASE. */ 1221 #define AFL_ASE_MDMX 0x00000010 /* MDMX ASE. */ 1222 #define AFL_ASE_MIPS3D 0x00000020 /* MIPS-3D ASE. */ 1223 #define AFL_ASE_MT 0x00000040 /* MT ASE. */ 1224 #define AFL_ASE_SMARTMIPS 0x00000080 /* SmartMIPS ASE. */ 1225 #define AFL_ASE_VIRT 0x00000100 /* VZ ASE. */ 1226 #define AFL_ASE_MSA 0x00000200 /* MSA ASE. */ 1227 #define AFL_ASE_MIPS16 0x00000400 /* MIPS16 ASE. */ 1228 #define AFL_ASE_MICROMIPS 0x00000800 /* MICROMIPS ASE. */ 1229 #define AFL_ASE_XPA 0x00001000 /* XPA ASE. */ 1230 #define AFL_ASE_DSPR6 0x00002000 /* DSP R6 ASE. */ 1231 #define AFL_ASE_MASK 0x00003fff /* All ASEs. */ 1232 1233 /* Values for the isa_ext word of an ABI flags structure. */ 1234 1235 #define AFL_EXT_XLR 1 /* RMI Xlr instruction. */ 1236 #define AFL_EXT_OCTEON2 2 /* Cavium Networks Octeon2. */ 1237 #define AFL_EXT_OCTEONP 3 /* Cavium Networks OcteonP. */ 1238 #define AFL_EXT_LOONGSON_3A 4 /* Loongson 3A. */ 1239 #define AFL_EXT_OCTEON 5 /* Cavium Networks Octeon. */ 1240 #define AFL_EXT_5900 6 /* MIPS R5900 instruction. */ 1241 #define AFL_EXT_4650 7 /* MIPS R4650 instruction. */ 1242 #define AFL_EXT_4010 8 /* LSI R4010 instruction. */ 1243 #define AFL_EXT_4100 9 /* NEC VR4100 instruction. */ 1244 #define AFL_EXT_3900 10 /* Toshiba R3900 instruction. */ 1245 #define AFL_EXT_10000 11 /* MIPS R10000 instruction. */ 1246 #define AFL_EXT_SB1 12 /* Broadcom SB-1 instruction. */ 1247 #define AFL_EXT_4111 13 /* NEC VR4111/VR4181 instruction. */ 1248 #define AFL_EXT_4120 14 /* NEC VR4120 instruction. */ 1249 #define AFL_EXT_5400 15 /* NEC VR5400 instruction. */ 1250 #define AFL_EXT_5500 16 /* NEC VR5500 instruction. */ 1251 #define AFL_EXT_LOONGSON_2E 17 /* ST Microelectronics Loongson 2E. */ 1252 #define AFL_EXT_LOONGSON_2F 18 /* ST Microelectronics Loongson 2F. */ 1253 #define AFL_EXT_OCTEON3 19 /* Cavium Networks Octeon3. */ 1254 1255 /* Masks for the flags1 word of an ABI flags structure. */ 1256 #define AFL_FLAGS1_ODDSPREG 1 /* Uses odd single-precision registers. */ 1257 1258 extern unsigned int bfd_mips_isa_ext (bfd *); 1259 1260 1261 /* Object attribute tags. */ 1262 enum 1263 { 1264 /* 0-3 are generic. */ 1265 1266 /* Floating-point ABI used by this object file. */ 1267 Tag_GNU_MIPS_ABI_FP = 4, 1268 1269 /* MSA ABI used by this object file. */ 1270 Tag_GNU_MIPS_ABI_MSA = 8, 1271 }; 1272 1273 /* Object attribute values. */ 1274 enum 1275 { 1276 /* Values defined for Tag_GNU_MIPS_ABI_FP. */ 1277 1278 /* Not tagged or not using any ABIs affected by the differences. */ 1279 Val_GNU_MIPS_ABI_FP_ANY = 0, 1280 1281 /* Using hard-float -mdouble-float. */ 1282 Val_GNU_MIPS_ABI_FP_DOUBLE = 1, 1283 1284 /* Using hard-float -msingle-float. */ 1285 Val_GNU_MIPS_ABI_FP_SINGLE = 2, 1286 1287 /* Using soft-float. */ 1288 Val_GNU_MIPS_ABI_FP_SOFT = 3, 1289 1290 /* Using -mips32r2 -mfp64. */ 1291 Val_GNU_MIPS_ABI_FP_OLD_64 = 4, 1292 1293 /* Using -mfpxx */ 1294 Val_GNU_MIPS_ABI_FP_XX = 5, 1295 1296 /* Using -mips32r2 -mfp64. */ 1297 Val_GNU_MIPS_ABI_FP_64 = 6, 1298 1299 /* Using -mips32r2 -mfp64 -mno-odd-spreg. */ 1300 Val_GNU_MIPS_ABI_FP_64A = 7, 1301 1302 /* Values defined for Tag_GNU_MIPS_ABI_MSA. */ 1303 1304 /* Not tagged or not using any ABIs affected by the differences. */ 1305 Val_GNU_MIPS_ABI_MSA_ANY = 0, 1306 1307 /* Using 128-bit MSA. */ 1308 Val_GNU_MIPS_ABI_MSA_128 = 1, 1309 }; 1310 1311 #endif /* _ELF_MIPS_H */ 1312