1 /* MIPS ELF support for BFD. 2 Copyright (C) 1993-2014 Free Software Foundation, Inc. 3 4 By Ian Lance Taylor, Cygnus Support, <ian (at) 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 300 exist. Symbols with a st_shndx field corresponding to one of these 301 values have a special meaning. */ 302 303 /* Defined and allocated common symbol. Value is virtual address. If 304 relocated, alignment must be preserved. */ 305 #define SHN_MIPS_ACOMMON SHN_LORESERVE 306 307 /* Defined and allocated text symbol. Value is virtual address. 308 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ 309 #define SHN_MIPS_TEXT (SHN_LORESERVE + 1) 310 311 /* Defined and allocated data symbol. Value is virtual address. 312 Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables. */ 313 #define SHN_MIPS_DATA (SHN_LORESERVE + 2) 314 315 /* Small common symbol. */ 316 #define SHN_MIPS_SCOMMON (SHN_LORESERVE + 3) 317 318 /* Small undefined symbol. */ 319 #define SHN_MIPS_SUNDEFINED (SHN_LORESERVE + 4) 320 321 /* Processor specific section types. */ 323 324 /* Section contains the set of dynamic shared objects used when 325 statically linking. */ 326 #define SHT_MIPS_LIBLIST 0x70000000 327 328 /* I'm not sure what this is, but it's used on Irix 5. */ 329 #define SHT_MIPS_MSYM 0x70000001 330 331 /* Section contains list of symbols whose definitions conflict with 332 symbols defined in shared objects. */ 333 #define SHT_MIPS_CONFLICT 0x70000002 334 335 /* Section contains the global pointer table. */ 336 #define SHT_MIPS_GPTAB 0x70000003 337 338 /* Section contains microcode information. The exact format is 339 unspecified. */ 340 #define SHT_MIPS_UCODE 0x70000004 341 342 /* Section contains some sort of debugging information. The exact 343 format is unspecified. It's probably ECOFF symbols. */ 344 #define SHT_MIPS_DEBUG 0x70000005 345 346 /* Section contains register usage information. */ 347 #define SHT_MIPS_REGINFO 0x70000006 348 349 /* ??? */ 350 #define SHT_MIPS_PACKAGE 0x70000007 351 352 /* ??? */ 353 #define SHT_MIPS_PACKSYM 0x70000008 354 355 /* ??? */ 356 #define SHT_MIPS_RELD 0x70000009 357 358 /* Section contains interface information. */ 359 #define SHT_MIPS_IFACE 0x7000000b 360 361 /* Section contains description of contents of another section. */ 362 #define SHT_MIPS_CONTENT 0x7000000c 363 364 /* Section contains miscellaneous options. */ 365 #define SHT_MIPS_OPTIONS 0x7000000d 366 367 /* ??? */ 368 #define SHT_MIPS_SHDR 0x70000010 369 370 /* ??? */ 371 #define SHT_MIPS_FDESC 0x70000011 372 373 /* ??? */ 374 #define SHT_MIPS_EXTSYM 0x70000012 375 376 /* ??? */ 377 #define SHT_MIPS_DENSE 0x70000013 378 379 /* ??? */ 380 #define SHT_MIPS_PDESC 0x70000014 381 382 /* ??? */ 383 #define SHT_MIPS_LOCSYM 0x70000015 384 385 /* ??? */ 386 #define SHT_MIPS_AUXSYM 0x70000016 387 388 /* ??? */ 389 #define SHT_MIPS_OPTSYM 0x70000017 390 391 /* ??? */ 392 #define SHT_MIPS_LOCSTR 0x70000018 393 394 /* ??? */ 395 #define SHT_MIPS_LINE 0x70000019 396 397 /* ??? */ 398 #define SHT_MIPS_RFDESC 0x7000001a 399 400 /* Delta C++: symbol table */ 401 #define SHT_MIPS_DELTASYM 0x7000001b 402 403 /* Delta C++: instance table */ 404 #define SHT_MIPS_DELTAINST 0x7000001c 405 406 /* Delta C++: class table */ 407 #define SHT_MIPS_DELTACLASS 0x7000001d 408 409 /* DWARF debugging section. */ 410 #define SHT_MIPS_DWARF 0x7000001e 411 412 /* Delta C++: declarations */ 413 #define SHT_MIPS_DELTADECL 0x7000001f 414 415 /* List of libraries the binary depends on. Includes a time stamp, version 416 number. */ 417 #define SHT_MIPS_SYMBOL_LIB 0x70000020 418 419 /* Events section. */ 420 #define SHT_MIPS_EVENTS 0x70000021 421 422 /* ??? */ 423 #define SHT_MIPS_TRANSLATE 0x70000022 424 425 /* Special pixie sections */ 426 #define SHT_MIPS_PIXIE 0x70000023 427 428 /* Address translation table (for debug info) */ 429 #define SHT_MIPS_XLATE 0x70000024 430 431 /* SGI internal address translation table (for debug info) */ 432 #define SHT_MIPS_XLATE_DEBUG 0x70000025 433 434 /* Intermediate code */ 435 #define SHT_MIPS_WHIRL 0x70000026 436 437 /* C++ exception handling region info */ 438 #define SHT_MIPS_EH_REGION 0x70000027 439 440 /* Obsolete address translation table (for debug info) */ 441 #define SHT_MIPS_XLATE_OLD 0x70000028 442 443 /* Runtime procedure descriptor table exception information (ucode) ??? */ 444 #define SHT_MIPS_PDR_EXCEPTION 0x70000029 445 446 /* ABI related flags section. */ 447 #define SHT_MIPS_ABIFLAGS 0x7000002a 448 449 /* A section of type SHT_MIPS_LIBLIST contains an array of the 450 following structure. The sh_link field is the section index of the 451 string table. The sh_info field is the number of entries in the 452 section. */ 453 typedef struct 454 { 455 /* String table index for name of shared object. */ 456 unsigned long l_name; 457 /* Time stamp. */ 458 unsigned long l_time_stamp; 459 /* Checksum of symbol names and common sizes. */ 460 unsigned long l_checksum; 461 /* String table index for version. */ 462 unsigned long l_version; 463 /* Flags. */ 464 unsigned long l_flags; 465 } Elf32_Lib; 466 467 /* The external version of Elf32_Lib. */ 468 typedef struct 469 { 470 unsigned char l_name[4]; 471 unsigned char l_time_stamp[4]; 472 unsigned char l_checksum[4]; 473 unsigned char l_version[4]; 474 unsigned char l_flags[4]; 475 } Elf32_External_Lib; 476 477 /* The l_flags field of an Elf32_Lib structure may contain the 478 following flags. */ 479 480 /* Require an exact match at runtime. */ 481 #define LL_EXACT_MATCH 0x00000001 482 483 /* Ignore version incompatibilities at runtime. */ 484 #define LL_IGNORE_INT_VER 0x00000002 485 486 /* Require matching minor version number. */ 487 #define LL_REQUIRE_MINOR 0x00000004 488 489 /* ??? */ 490 #define LL_EXPORTS 0x00000008 491 492 /* Delay loading of this library until really needed. */ 493 #define LL_DELAY_LOAD 0x00000010 494 495 /* ??? Delta C++ stuff ??? */ 496 #define LL_DELTA 0x00000020 497 498 499 /* A section of type SHT_MIPS_CONFLICT is an array of indices into the 500 .dynsym section. Each element has the following type. */ 501 typedef unsigned long Elf32_Conflict; 502 typedef unsigned char Elf32_External_Conflict[4]; 503 504 typedef unsigned long Elf64_Conflict; 505 typedef unsigned char Elf64_External_Conflict[8]; 506 507 /* A section of type SHT_MIPS_GPTAB contains information about how 508 much GP space would be required for different -G arguments. This 509 information is only used so that the linker can provide informative 510 suggestions as to the best -G value to use. The sh_info field is 511 the index of the section for which this information applies. The 512 contents of the section are an array of the following union. The 513 first element uses the gt_header field. The remaining elements use 514 the gt_entry field. */ 515 typedef union 516 { 517 struct 518 { 519 /* -G value actually used for this object file. */ 520 unsigned long gt_current_g_value; 521 /* Unused. */ 522 unsigned long gt_unused; 523 } gt_header; 524 struct 525 { 526 /* If this -G argument has been used... */ 527 unsigned long gt_g_value; 528 /* ...this many GP section bytes would be required. */ 529 unsigned long gt_bytes; 530 } gt_entry; 531 } Elf32_gptab; 532 533 /* The external version of Elf32_gptab. */ 534 535 typedef union 536 { 537 struct 538 { 539 unsigned char gt_current_g_value[4]; 540 unsigned char gt_unused[4]; 541 } gt_header; 542 struct 543 { 544 unsigned char gt_g_value[4]; 545 unsigned char gt_bytes[4]; 546 } gt_entry; 547 } Elf32_External_gptab; 548 549 /* A section of type SHT_MIPS_REGINFO contains the following 550 structure. */ 551 typedef struct 552 { 553 /* Mask of general purpose registers used. */ 554 unsigned long ri_gprmask; 555 /* Mask of co-processor registers used. */ 556 unsigned long ri_cprmask[4]; 557 /* GP register value for this object file. */ 558 long ri_gp_value; 559 } Elf32_RegInfo; 560 561 /* The external version of the Elf_RegInfo structure. */ 562 typedef struct 563 { 564 unsigned char ri_gprmask[4]; 565 unsigned char ri_cprmask[4][4]; 566 unsigned char ri_gp_value[4]; 567 } Elf32_External_RegInfo; 568 569 /* MIPS ELF .reginfo swapping routines. */ 570 extern void bfd_mips_elf32_swap_reginfo_in 571 (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *); 572 extern void bfd_mips_elf32_swap_reginfo_out 573 (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *); 574 575 /* Processor specific section flags. */ 577 578 /* This section must be in the global data area. */ 579 #define SHF_MIPS_GPREL 0x10000000 580 581 /* This section should be merged. */ 582 #define SHF_MIPS_MERGE 0x20000000 583 584 /* This section contains address data of size implied by section 585 element size. */ 586 #define SHF_MIPS_ADDR 0x40000000 587 588 /* This section contains string data. */ 589 #define SHF_MIPS_STRING 0x80000000 590 591 /* This section may not be stripped. */ 592 #define SHF_MIPS_NOSTRIP 0x08000000 593 594 /* This section is local to threads. */ 595 #define SHF_MIPS_LOCAL 0x04000000 596 597 /* Linker should generate implicit weak names for this section. */ 598 #define SHF_MIPS_NAMES 0x02000000 599 600 /* Section contais text/data which may be replicated in other sections. 601 Linker should retain only one copy. */ 602 #define SHF_MIPS_NODUPES 0x01000000 603 604 /* Processor specific program header types. */ 606 607 /* Register usage information. Identifies one .reginfo section. */ 608 #define PT_MIPS_REGINFO 0x70000000 609 610 /* Runtime procedure table. */ 611 #define PT_MIPS_RTPROC 0x70000001 612 613 /* .MIPS.options section. */ 614 #define PT_MIPS_OPTIONS 0x70000002 615 616 /* Records ABI related flags. */ 617 #define PT_MIPS_ABIFLAGS 0x70000003 618 619 /* Processor specific dynamic array tags. */ 621 622 /* 32 bit version number for runtime linker interface. */ 623 #define DT_MIPS_RLD_VERSION 0x70000001 624 625 /* Time stamp. */ 626 #define DT_MIPS_TIME_STAMP 0x70000002 627 628 /* Checksum of external strings and common sizes. */ 629 #define DT_MIPS_ICHECKSUM 0x70000003 630 631 /* Index of version string in string table. */ 632 #define DT_MIPS_IVERSION 0x70000004 633 634 /* 32 bits of flags. */ 635 #define DT_MIPS_FLAGS 0x70000005 636 637 /* Base address of the segment. */ 638 #define DT_MIPS_BASE_ADDRESS 0x70000006 639 640 /* ??? */ 641 #define DT_MIPS_MSYM 0x70000007 642 643 /* Address of .conflict section. */ 644 #define DT_MIPS_CONFLICT 0x70000008 645 646 /* Address of .liblist section. */ 647 #define DT_MIPS_LIBLIST 0x70000009 648 649 /* Number of local global offset table entries. */ 650 #define DT_MIPS_LOCAL_GOTNO 0x7000000a 651 652 /* Number of entries in the .conflict section. */ 653 #define DT_MIPS_CONFLICTNO 0x7000000b 654 655 /* Number of entries in the .liblist section. */ 656 #define DT_MIPS_LIBLISTNO 0x70000010 657 658 /* Number of entries in the .dynsym section. */ 659 #define DT_MIPS_SYMTABNO 0x70000011 660 661 /* Index of first external dynamic symbol not referenced locally. */ 662 #define DT_MIPS_UNREFEXTNO 0x70000012 663 664 /* Index of first dynamic symbol in global offset table. */ 665 #define DT_MIPS_GOTSYM 0x70000013 666 667 /* Number of page table entries in global offset table. */ 668 #define DT_MIPS_HIPAGENO 0x70000014 669 670 /* Address of run time loader map, used for debugging. */ 671 #define DT_MIPS_RLD_MAP 0x70000016 672 673 /* Delta C++ class definition. */ 674 #define DT_MIPS_DELTA_CLASS 0x70000017 675 676 /* Number of entries in DT_MIPS_DELTA_CLASS. */ 677 #define DT_MIPS_DELTA_CLASS_NO 0x70000018 678 679 /* Delta C++ class instances. */ 680 #define DT_MIPS_DELTA_INSTANCE 0x70000019 681 682 /* Number of entries in DT_MIPS_DELTA_INSTANCE. */ 683 #define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a 684 685 /* Delta relocations. */ 686 #define DT_MIPS_DELTA_RELOC 0x7000001b 687 688 /* Number of entries in DT_MIPS_DELTA_RELOC. */ 689 #define DT_MIPS_DELTA_RELOC_NO 0x7000001c 690 691 /* Delta symbols that Delta relocations refer to. */ 692 #define DT_MIPS_DELTA_SYM 0x7000001d 693 694 /* Number of entries in DT_MIPS_DELTA_SYM. */ 695 #define DT_MIPS_DELTA_SYM_NO 0x7000001e 696 697 /* Delta symbols that hold class declarations. */ 698 #define DT_MIPS_DELTA_CLASSSYM 0x70000020 699 700 /* Number of entries in DT_MIPS_DELTA_CLASSSYM. */ 701 #define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 702 703 /* Flags indicating information about C++ flavor. */ 704 #define DT_MIPS_CXX_FLAGS 0x70000022 705 706 /* Pixie information (???). */ 707 #define DT_MIPS_PIXIE_INIT 0x70000023 708 709 /* Address of .MIPS.symlib */ 710 #define DT_MIPS_SYMBOL_LIB 0x70000024 711 712 /* The GOT index of the first PTE for a segment */ 713 #define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 714 715 /* The GOT index of the first PTE for a local symbol */ 716 #define DT_MIPS_LOCAL_GOTIDX 0x70000026 717 718 /* The GOT index of the first PTE for a hidden symbol */ 719 #define DT_MIPS_HIDDEN_GOTIDX 0x70000027 720 721 /* The GOT index of the first PTE for a protected symbol */ 722 #define DT_MIPS_PROTECTED_GOTIDX 0x70000028 723 724 /* Address of `.MIPS.options'. */ 725 #define DT_MIPS_OPTIONS 0x70000029 726 727 /* Address of `.interface'. */ 728 #define DT_MIPS_INTERFACE 0x7000002a 729 730 /* ??? */ 731 #define DT_MIPS_DYNSTR_ALIGN 0x7000002b 732 733 /* Size of the .interface section. */ 734 #define DT_MIPS_INTERFACE_SIZE 0x7000002c 735 736 /* Size of rld_text_resolve function stored in the GOT. */ 737 #define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d 738 739 /* Default suffix of DSO to be added by rld on dlopen() calls. */ 740 #define DT_MIPS_PERF_SUFFIX 0x7000002e 741 742 /* Size of compact relocation section (O32). */ 743 #define DT_MIPS_COMPACT_SIZE 0x7000002f 744 745 /* GP value for auxiliary GOTs. */ 746 #define DT_MIPS_GP_VALUE 0x70000030 747 748 /* Address of auxiliary .dynamic. */ 749 #define DT_MIPS_AUX_DYNAMIC 0x70000031 750 751 /* Address of the base of the PLTGOT. */ 752 #define DT_MIPS_PLTGOT 0x70000032 753 754 /* Points to the base of a writable PLT. */ 755 #define DT_MIPS_RWPLT 0x70000034 756 757 /* Address of run time loader map, used for debugging. */ 758 #define DT_MIPS_RLD_MAP2 0x70000035 759 760 /* Flags which may appear in a DT_MIPS_FLAGS entry. */ 762 763 /* No flags. */ 764 #define RHF_NONE 0x00000000 765 766 /* Uses shortcut pointers. */ 767 #define RHF_QUICKSTART 0x00000001 768 769 /* Hash size is not a power of two. */ 770 #define RHF_NOTPOT 0x00000002 771 772 /* Ignore LD_LIBRARY_PATH. */ 773 #define RHS_NO_LIBRARY_REPLACEMENT 0x00000004 774 775 /* DSO address may not be relocated. */ 776 #define RHF_NO_MOVE 0x00000008 777 778 /* SGI specific features. */ 779 #define RHF_SGI_ONLY 0x00000010 780 781 /* Guarantee that .init will finish executing before any non-init 782 code in DSO is called. */ 783 #define RHF_GUARANTEE_INIT 0x00000020 784 785 /* Contains Delta C++ code. */ 786 #define RHF_DELTA_C_PLUS_PLUS 0x00000040 787 788 /* Guarantee that .init will start executing before any non-init 789 code in DSO is called. */ 790 #define RHF_GUARANTEE_START_INIT 0x00000080 791 792 /* Generated by pixie. */ 793 #define RHF_PIXIE 0x00000100 794 795 /* Delay-load DSO by default. */ 796 #define RHF_DEFAULT_DELAY_LOAD 0x00000200 797 798 /* Object may be requickstarted */ 799 #define RHF_REQUICKSTART 0x00000400 800 801 /* Object has been requickstarted */ 802 #define RHF_REQUICKSTARTED 0x00000800 803 804 /* Generated by cord. */ 805 #define RHF_CORD 0x00001000 806 807 /* Object contains no unresolved undef symbols. */ 808 #define RHF_NO_UNRES_UNDEF 0x00002000 809 810 /* Symbol table is in a safe order. */ 811 #define RHF_RLD_ORDER_SAFE 0x00004000 812 813 /* Special values for the st_other field in the symbol table. These 815 are used in an Irix 5 dynamic symbol table. */ 816 817 #define STO_DEFAULT STV_DEFAULT 818 #define STO_INTERNAL STV_INTERNAL 819 #define STO_HIDDEN STV_HIDDEN 820 #define STO_PROTECTED STV_PROTECTED 821 822 /* Two topmost bits denote the MIPS ISA for .text symbols: 823 + 00 -- standard MIPS code, 824 + 10 -- microMIPS code, 825 + 11 -- MIPS16 code; requires the following two bits to be set too. 826 Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC. See below 827 for details. */ 828 #define STO_MIPS_ISA (3 << 6) 829 830 /* The mask spanning the rest of MIPS psABI flags. At most one is expected 831 to be set except for STO_MIPS16. */ 832 #define STO_MIPS_FLAGS (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1))) 833 834 /* The MIPS psABI was updated in 2008 with support for PLTs and copy 835 relocs. There are therefore two types of nonzero SHN_UNDEF functions: 836 PLT entries and traditional MIPS lazy binding stubs. We mark the former 837 with STO_MIPS_PLT to distinguish them from the latter. */ 838 #define STO_MIPS_PLT 0x8 839 #define ELF_ST_IS_MIPS_PLT(other) \ 840 ((ELF_ST_IS_MIPS16 (other) \ 841 ? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS)) \ 842 : ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT) 843 #define ELF_ST_SET_MIPS_PLT(other) \ 844 ((ELF_ST_IS_MIPS16 (other) \ 845 ? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS)) \ 846 : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT) 847 848 /* This value is used to mark PIC functions in an object that mixes 849 PIC and non-PIC. Note that this bit overlaps with STO_MIPS16, 850 although MIPS16 symbols are never considered to be MIPS_PIC. */ 851 #define STO_MIPS_PIC 0x20 852 #define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC) 853 #define ELF_ST_SET_MIPS_PIC(other) \ 854 ((ELF_ST_IS_MIPS16 (other) \ 855 ? ((other) & ~(STO_MIPS16 | STO_MIPS_FLAGS)) \ 856 : ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PIC) 857 858 /* This value is used for a mips16 .text symbol. */ 859 #define STO_MIPS16 0xf0 860 #define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16) 861 #define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16) 862 863 /* This value is used for a microMIPS .text symbol. To distinguish from 864 STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS. The 865 mask is STO_MIPS_ISA. */ 866 #define STO_MICROMIPS (2 << 6) 867 #define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS) 868 #define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS) 869 870 /* Whether code compression (either of the MIPS16 or the microMIPS ASEs) 871 has been indicated for a .text symbol. */ 872 #define ELF_ST_IS_COMPRESSED(other) \ 873 (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other)) 874 875 /* This bit is used on Irix to indicate a symbol whose definition 876 is optional - if, at final link time, it cannot be found, no 877 error message should be produced. */ 878 #define STO_OPTIONAL (1 << 2) 879 /* A macro to examine the STO_OPTIONAL bit. */ 880 #define ELF_MIPS_IS_OPTIONAL(other) ((other) & STO_OPTIONAL) 881 882 /* The 64-bit MIPS ELF ABI uses an unusual reloc format. Each 884 relocation entry specifies up to three actual relocations, all at 885 the same address. The first relocation which required a symbol 886 uses the symbol in the r_sym field. The second relocation which 887 requires a symbol uses the symbol in the r_ssym field. If all 888 three relocations require a symbol, the third one uses a zero 889 value. */ 890 891 /* An entry in a 64 bit SHT_REL section. */ 892 893 typedef struct 894 { 895 /* Address of relocation. */ 896 unsigned char r_offset[8]; 897 /* Symbol index. */ 898 unsigned char r_sym[4]; 899 /* Special symbol. */ 900 unsigned char r_ssym[1]; 901 /* Third relocation. */ 902 unsigned char r_type3[1]; 903 /* Second relocation. */ 904 unsigned char r_type2[1]; 905 /* First relocation. */ 906 unsigned char r_type[1]; 907 } Elf64_Mips_External_Rel; 908 909 typedef struct 910 { 911 /* Address of relocation. */ 912 bfd_vma r_offset; 913 /* Symbol index. */ 914 unsigned long r_sym; 915 /* Special symbol. */ 916 unsigned char r_ssym; 917 /* Third relocation. */ 918 unsigned char r_type3; 919 /* Second relocation. */ 920 unsigned char r_type2; 921 /* First relocation. */ 922 unsigned char r_type; 923 } Elf64_Mips_Internal_Rel; 924 925 /* An entry in a 64 bit SHT_RELA section. */ 926 927 typedef struct 928 { 929 /* Address of relocation. */ 930 unsigned char r_offset[8]; 931 /* Symbol index. */ 932 unsigned char r_sym[4]; 933 /* Special symbol. */ 934 unsigned char r_ssym[1]; 935 /* Third relocation. */ 936 unsigned char r_type3[1]; 937 /* Second relocation. */ 938 unsigned char r_type2[1]; 939 /* First relocation. */ 940 unsigned char r_type[1]; 941 /* Addend. */ 942 unsigned char r_addend[8]; 943 } Elf64_Mips_External_Rela; 944 945 typedef struct 946 { 947 /* Address of relocation. */ 948 bfd_vma r_offset; 949 /* Symbol index. */ 950 unsigned long r_sym; 951 /* Special symbol. */ 952 unsigned char r_ssym; 953 /* Third relocation. */ 954 unsigned char r_type3; 955 /* Second relocation. */ 956 unsigned char r_type2; 957 /* First relocation. */ 958 unsigned char r_type; 959 /* Addend. */ 960 bfd_signed_vma r_addend; 961 } Elf64_Mips_Internal_Rela; 962 963 /* MIPS ELF 64 relocation info access macros. */ 964 #define ELF64_MIPS_R_SSYM(i) (((i) >> 24) & 0xff) 965 #define ELF64_MIPS_R_TYPE3(i) (((i) >> 16) & 0xff) 966 #define ELF64_MIPS_R_TYPE2(i) (((i) >> 8) & 0xff) 967 #define ELF64_MIPS_R_TYPE(i) ((i) & 0xff) 968 969 /* Values found in the r_ssym field of a relocation entry. */ 970 971 /* No relocation. */ 972 #define RSS_UNDEF 0 973 974 /* Value of GP. */ 975 #define RSS_GP 1 976 977 /* Value of GP in object being relocated. */ 978 #define RSS_GP0 2 979 980 /* Address of location being relocated. */ 981 #define RSS_LOC 3 982 983 /* A SHT_MIPS_OPTIONS section contains a series of options, each of 985 which starts with this header. */ 986 987 typedef struct 988 { 989 /* Type of option. */ 990 unsigned char kind[1]; 991 /* Size of option descriptor, including header. */ 992 unsigned char size[1]; 993 /* Section index of affected section, or 0 for global option. */ 994 unsigned char section[2]; 995 /* Information specific to this kind of option. */ 996 unsigned char info[4]; 997 } Elf_External_Options; 998 999 typedef struct 1000 { 1001 /* Type of option. */ 1002 unsigned char kind; 1003 /* Size of option descriptor, including header. */ 1004 unsigned char size; 1005 /* Section index of affected section, or 0 for global option. */ 1006 unsigned short section; 1007 /* Information specific to this kind of option. */ 1008 unsigned long info; 1009 } Elf_Internal_Options; 1010 1011 /* MIPS ELF option header swapping routines. */ 1012 extern void bfd_mips_elf_swap_options_in 1013 (bfd *, const Elf_External_Options *, Elf_Internal_Options *); 1014 extern void bfd_mips_elf_swap_options_out 1015 (bfd *, const Elf_Internal_Options *, Elf_External_Options *); 1016 1017 /* Values which may appear in the kind field of an Elf_Options 1018 structure. */ 1019 1020 /* Undefined. */ 1021 #define ODK_NULL 0 1022 1023 /* Register usage and GP value. */ 1024 #define ODK_REGINFO 1 1025 1026 /* Exception processing information. */ 1027 #define ODK_EXCEPTIONS 2 1028 1029 /* Section padding information. */ 1030 #define ODK_PAD 3 1031 1032 /* Hardware workarounds performed. */ 1033 #define ODK_HWPATCH 4 1034 1035 /* Fill value used by the linker. */ 1036 #define ODK_FILL 5 1037 1038 /* Reserved space for desktop tools. */ 1039 #define ODK_TAGS 6 1040 1041 /* Hardware workarounds, AND bits when merging. */ 1042 #define ODK_HWAND 7 1043 1044 /* Hardware workarounds, OR bits when merging. */ 1045 #define ODK_HWOR 8 1046 1047 /* GP group to use for text/data sections. */ 1048 #define ODK_GP_GROUP 9 1049 1050 /* ID information. */ 1051 #define ODK_IDENT 10 1052 1053 /* In the 32 bit ABI, an ODK_REGINFO option is just a Elf32_RegInfo 1054 structure. In the 64 bit ABI, it is the following structure. The 1055 info field of the options header is not used. */ 1056 1057 typedef struct 1058 { 1059 /* Mask of general purpose registers used. */ 1060 unsigned char ri_gprmask[4]; 1061 /* Padding. */ 1062 unsigned char ri_pad[4]; 1063 /* Mask of co-processor registers used. */ 1064 unsigned char ri_cprmask[4][4]; 1065 /* GP register value for this object file. */ 1066 unsigned char ri_gp_value[8]; 1067 } Elf64_External_RegInfo; 1068 1069 typedef struct 1070 { 1071 /* Mask of general purpose registers used. */ 1072 unsigned long ri_gprmask; 1073 /* Padding. */ 1074 unsigned long ri_pad; 1075 /* Mask of co-processor registers used. */ 1076 unsigned long ri_cprmask[4]; 1077 /* GP register value for this object file. */ 1078 bfd_vma ri_gp_value; 1079 } Elf64_Internal_RegInfo; 1080 1081 /* ABI Flags structure version 0. */ 1082 1083 typedef struct 1084 { 1085 /* Version of flags structure. */ 1086 unsigned char version[2]; 1087 /* The level of the ISA: 1-5, 32, 64. */ 1088 unsigned char isa_level[1]; 1089 /* The revision of ISA: 0 for MIPS V and below, 1-n otherwise. */ 1090 unsigned char isa_rev[1]; 1091 /* The size of general purpose registers. */ 1092 unsigned char gpr_size[1]; 1093 /* The size of co-processor 1 registers. */ 1094 unsigned char cpr1_size[1]; 1095 /* The size of co-processor 2 registers. */ 1096 unsigned char cpr2_size[1]; 1097 /* The floating-point ABI. */ 1098 unsigned char fp_abi[1]; 1099 /* Processor-specific extension. */ 1100 unsigned char isa_ext[4]; 1101 /* Mask of ASEs used. */ 1102 unsigned char ases[4]; 1103 /* Mask of general flags. */ 1104 unsigned char flags1[4]; 1105 unsigned char flags2[4]; 1106 } Elf_External_ABIFlags_v0; 1107 1108 typedef struct 1109 { 1110 /* Version of flags structure. */ 1111 unsigned short version; 1112 /* The level of the ISA: 1-5, 32, 64. */ 1113 unsigned char isa_level; 1114 /* The revision of ISA: 0 for MIPS V and below, 1-n otherwise. */ 1115 unsigned char isa_rev; 1116 /* The size of general purpose registers. */ 1117 unsigned char gpr_size; 1118 /* The size of co-processor 1 registers. */ 1119 unsigned char cpr1_size; 1120 /* The size of co-processor 2 registers. */ 1121 unsigned char cpr2_size; 1122 /* The floating-point ABI. */ 1123 unsigned char fp_abi; 1124 /* Processor-specific extension. */ 1125 unsigned long isa_ext; 1126 /* Mask of ASEs used. */ 1127 unsigned long ases; 1128 /* Mask of general flags. */ 1129 unsigned long flags1; 1130 unsigned long flags2; 1131 } Elf_Internal_ABIFlags_v0; 1132 1133 typedef struct 1134 { 1135 /* The hash value computed from the name of the corresponding 1136 dynamic symbol. */ 1137 unsigned char ms_hash_value[4]; 1138 /* Contains both the dynamic relocation index and the symbol flags 1139 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used 1140 to access the individual values. The dynamic relocation index 1141 identifies the first entry in the .rel.dyn section that 1142 references the dynamic symbol corresponding to this msym entry. 1143 If the index is 0, no dynamic relocations are associated with the 1144 symbol. The symbol flags field is reserved for future use. */ 1145 unsigned char ms_info[4]; 1146 } Elf32_External_Msym; 1147 1148 typedef struct 1149 { 1150 /* The hash value computed from the name of the corresponding 1151 dynamic symbol. */ 1152 unsigned long ms_hash_value; 1153 /* Contains both the dynamic relocation index and the symbol flags 1154 field. The macros ELF32_MS_REL_INDEX and ELF32_MS_FLAGS are used 1155 to access the individual values. The dynamic relocation index 1156 identifies the first entry in the .rel.dyn section that 1157 references the dynamic symbol corresponding to this msym entry. 1158 If the index is 0, no dynamic relocations are associated with the 1159 symbol. The symbol flags field is reserved for future use. */ 1160 unsigned long ms_info; 1161 } Elf32_Internal_Msym; 1162 1163 #define ELF32_MS_REL_INDEX(i) ((i) >> 8) 1164 #define ELF32_MS_FLAGS(i) (i) & 0xff) 1165 #define ELF32_MS_INFO(r, f) (((r) << 8) + ((f) & 0xff)) 1166 1167 /* MIPS ELF reginfo swapping routines. */ 1168 extern void bfd_mips_elf64_swap_reginfo_in 1169 (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *); 1170 extern void bfd_mips_elf64_swap_reginfo_out 1171 (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *); 1172 1173 /* MIPS ELF flags swapping routines. */ 1174 extern void bfd_mips_elf_swap_abiflags_v0_in 1175 (bfd *, const Elf_External_ABIFlags_v0 *, Elf_Internal_ABIFlags_v0 *); 1176 extern void bfd_mips_elf_swap_abiflags_v0_out 1177 (bfd *, const Elf_Internal_ABIFlags_v0 *, Elf_External_ABIFlags_v0 *); 1178 1179 /* Masks for the info work of an ODK_EXCEPTIONS descriptor. */ 1180 #define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */ 1181 #define OEX_FPU_MAX 0x1f00 /* FPEs which may be enabled. */ 1182 #define OEX_PAGE0 0x10000 /* Page zero must be mapped. */ 1183 #define OEX_SMM 0x20000 /* Force sequential memory mode. */ 1184 #define OEX_FPDBUG 0x40000 /* Force precise floating-point 1185 exceptions (debug mode). */ 1186 #define OEX_DISMISS 0x80000 /* Dismiss invalid address faults. */ 1187 1188 /* Masks of the FP exceptions for OEX_FPU_MIN and OEX_FPU_MAX. */ 1189 #define OEX_FPU_INVAL 0x10 /* Invalid operation exception. */ 1190 #define OEX_FPU_DIV0 0x08 /* Division by zero exception. */ 1191 #define OEX_FPU_OFLO 0x04 /* Overflow exception. */ 1192 #define OEX_FPU_UFLO 0x02 /* Underflow exception. */ 1193 #define OEX_FPU_INEX 0x01 /* Inexact exception. */ 1194 1195 /* Masks for the info word of an ODK_PAD descriptor. */ 1196 #define OPAD_PREFIX 0x01 1197 #define OPAD_POSTFIX 0x02 1198 #define OPAD_SYMBOL 0x04 1199 1200 /* Masks for the info word of an ODK_HWPATCH descriptor. */ 1201 #define OHW_R4KEOP 0x00000001 /* R4000 end-of-page patch. */ 1202 #define OHW_R8KPFETCH 0x00000002 /* May need R8000 prefetch patch. */ 1203 #define OHW_R5KEOP 0x00000004 /* R5000 end-of-page patch. */ 1204 #define OHW_R5KCVTL 0x00000008 /* R5000 cvt.[ds].l bug 1205 (clean == 1). */ 1206 #define OHW_R10KLDL 0x00000010 /* Needs R10K misaligned 1207 load patch. */ 1208 1209 /* Masks for the info word of an ODK_IDENT/ODK_GP_GROUP descriptor. */ 1210 #define OGP_GROUP 0x0000ffff /* GP group number. */ 1211 #define OGP_SELF 0xffff0000 /* Self-contained GP groups. */ 1212 1213 /* Masks for the info word of an ODK_HWAND/ODK_HWOR descriptor. */ 1214 #define OHWA0_R4KEOP_CHECKED 0x00000001 1215 #define OHWA0_R4KEOP_CLEAN 0x00000002 1216 1217 /* Values for the xxx_size bytes of an ABI flags structure. */ 1218 1219 #define AFL_REG_NONE 0x00 /* No registers. */ 1220 #define AFL_REG_32 0x01 /* 32-bit registers. */ 1221 #define AFL_REG_64 0x02 /* 64-bit registers. */ 1222 #define AFL_REG_128 0x03 /* 128-bit registers. */ 1223 1224 /* Masks for the ases word of an ABI flags structure. */ 1225 1226 #define AFL_ASE_DSP 0x00000001 /* DSP ASE. */ 1227 #define AFL_ASE_DSPR2 0x00000002 /* DSP R2 ASE. */ 1228 #define AFL_ASE_EVA 0x00000004 /* Enhanced VA Scheme. */ 1229 #define AFL_ASE_MCU 0x00000008 /* MCU (MicroController) ASE. */ 1230 #define AFL_ASE_MDMX 0x00000010 /* MDMX ASE. */ 1231 #define AFL_ASE_MIPS3D 0x00000020 /* MIPS-3D ASE. */ 1232 #define AFL_ASE_MT 0x00000040 /* MT ASE. */ 1233 #define AFL_ASE_SMARTMIPS 0x00000080 /* SmartMIPS ASE. */ 1234 #define AFL_ASE_VIRT 0x00000100 /* VZ ASE. */ 1235 #define AFL_ASE_MSA 0x00000200 /* MSA ASE. */ 1236 #define AFL_ASE_MIPS16 0x00000400 /* MIPS16 ASE. */ 1237 #define AFL_ASE_MICROMIPS 0x00000800 /* MICROMIPS ASE. */ 1238 #define AFL_ASE_XPA 0x00001000 /* XPA ASE. */ 1239 #define AFL_ASE_DSPR6 0x00002000 /* DSP R6 ASE. */ 1240 #define AFL_ASE_MASK 0x00003fff /* All ASEs. */ 1241 1242 /* Values for the isa_ext word of an ABI flags structure. */ 1243 1244 #define AFL_EXT_XLR 1 /* RMI Xlr instruction. */ 1245 #define AFL_EXT_OCTEON2 2 /* Cavium Networks Octeon2. */ 1246 #define AFL_EXT_OCTEONP 3 /* Cavium Networks OcteonP. */ 1247 #define AFL_EXT_LOONGSON_3A 4 /* Loongson 3A. */ 1248 #define AFL_EXT_OCTEON 5 /* Cavium Networks Octeon. */ 1249 #define AFL_EXT_5900 6 /* MIPS R5900 instruction. */ 1250 #define AFL_EXT_4650 7 /* MIPS R4650 instruction. */ 1251 #define AFL_EXT_4010 8 /* LSI R4010 instruction. */ 1252 #define AFL_EXT_4100 9 /* NEC VR4100 instruction. */ 1253 #define AFL_EXT_3900 10 /* Toshiba R3900 instruction. */ 1254 #define AFL_EXT_10000 11 /* MIPS R10000 instruction. */ 1255 #define AFL_EXT_SB1 12 /* Broadcom SB-1 instruction. */ 1256 #define AFL_EXT_4111 13 /* NEC VR4111/VR4181 instruction. */ 1257 #define AFL_EXT_4120 14 /* NEC VR4120 instruction. */ 1258 #define AFL_EXT_5400 15 /* NEC VR5400 instruction. */ 1259 #define AFL_EXT_5500 16 /* NEC VR5500 instruction. */ 1260 #define AFL_EXT_LOONGSON_2E 17 /* ST Microelectronics Loongson 2E. */ 1261 #define AFL_EXT_LOONGSON_2F 18 /* ST Microelectronics Loongson 2F. */ 1262 #define AFL_EXT_OCTEON3 19 /* Cavium Networks Octeon3. */ 1263 1264 /* Masks for the flags1 word of an ABI flags structure. */ 1265 #define AFL_FLAGS1_ODDSPREG 1 /* Uses odd single-precision registers. */ 1266 1267 extern unsigned int bfd_mips_isa_ext (bfd *); 1268 1269 1271 /* Object attribute tags. */ 1272 enum 1273 { 1274 /* 0-3 are generic. */ 1275 1276 /* Floating-point ABI used by this object file. */ 1277 Tag_GNU_MIPS_ABI_FP = 4, 1278 1279 /* MSA ABI used by this object file. */ 1280 Tag_GNU_MIPS_ABI_MSA = 8, 1281 }; 1282 1283 /* Object attribute values. */ 1284 enum 1285 { 1286 /* Values defined for Tag_GNU_MIPS_ABI_FP. */ 1287 1288 /* Not tagged or not using any ABIs affected by the differences. */ 1289 Val_GNU_MIPS_ABI_FP_ANY = 0, 1290 1291 /* Using hard-float -mdouble-float. */ 1292 Val_GNU_MIPS_ABI_FP_DOUBLE = 1, 1293 1294 /* Using hard-float -msingle-float. */ 1295 Val_GNU_MIPS_ABI_FP_SINGLE = 2, 1296 1297 /* Using soft-float. */ 1298 Val_GNU_MIPS_ABI_FP_SOFT = 3, 1299 1300 /* Using -mips32r2 -mfp64. */ 1301 Val_GNU_MIPS_ABI_FP_OLD_64 = 4, 1302 1303 /* Using -mfpxx */ 1304 Val_GNU_MIPS_ABI_FP_XX = 5, 1305 1306 /* Using -mips32r2 -mfp64. */ 1307 Val_GNU_MIPS_ABI_FP_64 = 6, 1308 1309 /* Using -mips32r2 -mfp64 -mno-odd-spreg. */ 1310 Val_GNU_MIPS_ABI_FP_64A = 7, 1311 1312 /* Values defined for Tag_GNU_MIPS_ABI_MSA. */ 1313 1314 /* Not tagged or not using any ABIs affected by the differences. */ 1315 Val_GNU_MIPS_ABI_MSA_ANY = 0, 1316 1317 /* Using 128-bit MSA. */ 1318 Val_GNU_MIPS_ABI_MSA_128 = 1, 1319 }; 1320 1321 #endif /* _ELF_MIPS_H */ 1322
