Source file src/pkg/debug/elf/elf.go
1 /* 2 * ELF constants and data structures 3 * 4 * Derived from: 5 * $FreeBSD: src/sys/sys/elf32.h,v 1.8.14.1 2005/12/30 22:13:58 marcel Exp $ 6 * $FreeBSD: src/sys/sys/elf64.h,v 1.10.14.1 2005/12/30 22:13:58 marcel Exp $ 7 * $FreeBSD: src/sys/sys/elf_common.h,v 1.15.8.1 2005/12/30 22:13:58 marcel Exp $ 8 * $FreeBSD: src/sys/alpha/include/elf.h,v 1.14 2003/09/25 01:10:22 peter Exp $ 9 * $FreeBSD: src/sys/amd64/include/elf.h,v 1.18 2004/08/03 08:21:48 dfr Exp $ 10 * $FreeBSD: src/sys/arm/include/elf.h,v 1.5.2.1 2006/06/30 21:42:52 cognet Exp $ 11 * $FreeBSD: src/sys/i386/include/elf.h,v 1.16 2004/08/02 19:12:17 dfr Exp $ 12 * $FreeBSD: src/sys/powerpc/include/elf.h,v 1.7 2004/11/02 09:47:01 ssouhlal Exp $ 13 * $FreeBSD: src/sys/sparc64/include/elf.h,v 1.12 2003/09/25 01:10:26 peter Exp $ 14 * 15 * Copyright (c) 1996-1998 John D. Polstra. All rights reserved. 16 * Copyright (c) 2001 David E. O'Brien 17 * Portions Copyright 2009 The Go Authors. All rights reserved. 18 * 19 * Redistribution and use in source and binary forms, with or without 20 * modification, are permitted provided that the following conditions 21 * are met: 22 * 1. Redistributions of source code must retain the above copyright 23 * notice, this list of conditions and the following disclaimer. 24 * 2. Redistributions in binary form must reproduce the above copyright 25 * notice, this list of conditions and the following disclaimer in the 26 * documentation and/or other materials provided with the distribution. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 package elf 42 43 import "strconv" 44 45 /* 46 * Constants 47 */ 48 49 // Indexes into the Header.Ident array. 50 const ( 51 EI_CLASS = 4 /* Class of machine. */ 52 EI_DATA = 5 /* Data format. */ 53 EI_VERSION = 6 /* ELF format version. */ 54 EI_OSABI = 7 /* Operating system / ABI identification */ 55 EI_ABIVERSION = 8 /* ABI version */ 56 EI_PAD = 9 /* Start of padding (per SVR4 ABI). */ 57 EI_NIDENT = 16 /* Size of e_ident array. */ 58 ) 59 60 // Initial magic number for ELF files. 61 const ELFMAG = "\177ELF" 62 63 // Version is found in Header.Ident[EI_VERSION] and Header.Version. 64 type Version byte 65 66 const ( 67 EV_NONE Version = 0 68 EV_CURRENT Version = 1 69 ) 70 71 var versionStrings = []intName{ 72 {0, "EV_NONE"}, 73 {1, "EV_CURRENT"}, 74 } 75 76 func (i Version) String() string { return stringName(uint32(i), versionStrings, false) } 77 func (i Version) GoString() string { return stringName(uint32(i), versionStrings, true) } 78 79 // Class is found in Header.Ident[EI_CLASS] and Header.Class. 80 type Class byte 81 82 const ( 83 ELFCLASSNONE Class = 0 /* Unknown class. */ 84 ELFCLASS32 Class = 1 /* 32-bit architecture. */ 85 ELFCLASS64 Class = 2 /* 64-bit architecture. */ 86 ) 87 88 var classStrings = []intName{ 89 {0, "ELFCLASSNONE"}, 90 {1, "ELFCLASS32"}, 91 {2, "ELFCLASS64"}, 92 } 93 94 func (i Class) String() string { return stringName(uint32(i), classStrings, false) } 95 func (i Class) GoString() string { return stringName(uint32(i), classStrings, true) } 96 97 // Data is found in Header.Ident[EI_DATA] and Header.Data. 98 type Data byte 99 100 const ( 101 ELFDATANONE Data = 0 /* Unknown data format. */ 102 ELFDATA2LSB Data = 1 /* 2's complement little-endian. */ 103 ELFDATA2MSB Data = 2 /* 2's complement big-endian. */ 104 ) 105 106 var dataStrings = []intName{ 107 {0, "ELFDATANONE"}, 108 {1, "ELFDATA2LSB"}, 109 {2, "ELFDATA2MSB"}, 110 } 111 112 func (i Data) String() string { return stringName(uint32(i), dataStrings, false) } 113 func (i Data) GoString() string { return stringName(uint32(i), dataStrings, true) } 114 115 // OSABI is found in Header.Ident[EI_OSABI] and Header.OSABI. 116 type OSABI byte 117 118 const ( 119 ELFOSABI_NONE OSABI = 0 /* UNIX System V ABI */ 120 ELFOSABI_HPUX OSABI = 1 /* HP-UX operating system */ 121 ELFOSABI_NETBSD OSABI = 2 /* NetBSD */ 122 ELFOSABI_LINUX OSABI = 3 /* GNU/Linux */ 123 ELFOSABI_HURD OSABI = 4 /* GNU/Hurd */ 124 ELFOSABI_86OPEN OSABI = 5 /* 86Open common IA32 ABI */ 125 ELFOSABI_SOLARIS OSABI = 6 /* Solaris */ 126 ELFOSABI_AIX OSABI = 7 /* AIX */ 127 ELFOSABI_IRIX OSABI = 8 /* IRIX */ 128 ELFOSABI_FREEBSD OSABI = 9 /* FreeBSD */ 129 ELFOSABI_TRU64 OSABI = 10 /* TRU64 UNIX */ 130 ELFOSABI_MODESTO OSABI = 11 /* Novell Modesto */ 131 ELFOSABI_OPENBSD OSABI = 12 /* OpenBSD */ 132 ELFOSABI_OPENVMS OSABI = 13 /* Open VMS */ 133 ELFOSABI_NSK OSABI = 14 /* HP Non-Stop Kernel */ 134 ELFOSABI_ARM OSABI = 97 /* ARM */ 135 ELFOSABI_STANDALONE OSABI = 255 /* Standalone (embedded) application */ 136 ) 137 138 var osabiStrings = []intName{ 139 {0, "ELFOSABI_NONE"}, 140 {1, "ELFOSABI_HPUX"}, 141 {2, "ELFOSABI_NETBSD"}, 142 {3, "ELFOSABI_LINUX"}, 143 {4, "ELFOSABI_HURD"}, 144 {5, "ELFOSABI_86OPEN"}, 145 {6, "ELFOSABI_SOLARIS"}, 146 {7, "ELFOSABI_AIX"}, 147 {8, "ELFOSABI_IRIX"}, 148 {9, "ELFOSABI_FREEBSD"}, 149 {10, "ELFOSABI_TRU64"}, 150 {11, "ELFOSABI_MODESTO"}, 151 {12, "ELFOSABI_OPENBSD"}, 152 {13, "ELFOSABI_OPENVMS"}, 153 {14, "ELFOSABI_NSK"}, 154 {97, "ELFOSABI_ARM"}, 155 {255, "ELFOSABI_STANDALONE"}, 156 } 157 158 func (i OSABI) String() string { return stringName(uint32(i), osabiStrings, false) } 159 func (i OSABI) GoString() string { return stringName(uint32(i), osabiStrings, true) } 160 161 // Type is found in Header.Type. 162 type Type uint16 163 164 const ( 165 ET_NONE Type = 0 /* Unknown type. */ 166 ET_REL Type = 1 /* Relocatable. */ 167 ET_EXEC Type = 2 /* Executable. */ 168 ET_DYN Type = 3 /* Shared object. */ 169 ET_CORE Type = 4 /* Core file. */ 170 ET_LOOS Type = 0xfe00 /* First operating system specific. */ 171 ET_HIOS Type = 0xfeff /* Last operating system-specific. */ 172 ET_LOPROC Type = 0xff00 /* First processor-specific. */ 173 ET_HIPROC Type = 0xffff /* Last processor-specific. */ 174 ) 175 176 var typeStrings = []intName{ 177 {0, "ET_NONE"}, 178 {1, "ET_REL"}, 179 {2, "ET_EXEC"}, 180 {3, "ET_DYN"}, 181 {4, "ET_CORE"}, 182 {0xfe00, "ET_LOOS"}, 183 {0xfeff, "ET_HIOS"}, 184 {0xff00, "ET_LOPROC"}, 185 {0xffff, "ET_HIPROC"}, 186 } 187 188 func (i Type) String() string { return stringName(uint32(i), typeStrings, false) } 189 func (i Type) GoString() string { return stringName(uint32(i), typeStrings, true) } 190 191 // Machine is found in Header.Machine. 192 type Machine uint16 193 194 const ( 195 EM_NONE Machine = 0 /* Unknown machine. */ 196 EM_M32 Machine = 1 /* AT&T WE32100. */ 197 EM_SPARC Machine = 2 /* Sun SPARC. */ 198 EM_386 Machine = 3 /* Intel i386. */ 199 EM_68K Machine = 4 /* Motorola 68000. */ 200 EM_88K Machine = 5 /* Motorola 88000. */ 201 EM_860 Machine = 7 /* Intel i860. */ 202 EM_MIPS Machine = 8 /* MIPS R3000 Big-Endian only. */ 203 EM_S370 Machine = 9 /* IBM System/370. */ 204 EM_MIPS_RS3_LE Machine = 10 /* MIPS R3000 Little-Endian. */ 205 EM_PARISC Machine = 15 /* HP PA-RISC. */ 206 EM_VPP500 Machine = 17 /* Fujitsu VPP500. */ 207 EM_SPARC32PLUS Machine = 18 /* SPARC v8plus. */ 208 EM_960 Machine = 19 /* Intel 80960. */ 209 EM_PPC Machine = 20 /* PowerPC 32-bit. */ 210 EM_PPC64 Machine = 21 /* PowerPC 64-bit. */ 211 EM_S390 Machine = 22 /* IBM System/390. */ 212 EM_V800 Machine = 36 /* NEC V800. */ 213 EM_FR20 Machine = 37 /* Fujitsu FR20. */ 214 EM_RH32 Machine = 38 /* TRW RH-32. */ 215 EM_RCE Machine = 39 /* Motorola RCE. */ 216 EM_ARM Machine = 40 /* ARM. */ 217 EM_SH Machine = 42 /* Hitachi SH. */ 218 EM_SPARCV9 Machine = 43 /* SPARC v9 64-bit. */ 219 EM_TRICORE Machine = 44 /* Siemens TriCore embedded processor. */ 220 EM_ARC Machine = 45 /* Argonaut RISC Core. */ 221 EM_H8_300 Machine = 46 /* Hitachi H8/300. */ 222 EM_H8_300H Machine = 47 /* Hitachi H8/300H. */ 223 EM_H8S Machine = 48 /* Hitachi H8S. */ 224 EM_H8_500 Machine = 49 /* Hitachi H8/500. */ 225 EM_IA_64 Machine = 50 /* Intel IA-64 Processor. */ 226 EM_MIPS_X Machine = 51 /* Stanford MIPS-X. */ 227 EM_COLDFIRE Machine = 52 /* Motorola ColdFire. */ 228 EM_68HC12 Machine = 53 /* Motorola M68HC12. */ 229 EM_MMA Machine = 54 /* Fujitsu MMA. */ 230 EM_PCP Machine = 55 /* Siemens PCP. */ 231 EM_NCPU Machine = 56 /* Sony nCPU. */ 232 EM_NDR1 Machine = 57 /* Denso NDR1 microprocessor. */ 233 EM_STARCORE Machine = 58 /* Motorola Star*Core processor. */ 234 EM_ME16 Machine = 59 /* Toyota ME16 processor. */ 235 EM_ST100 Machine = 60 /* STMicroelectronics ST100 processor. */ 236 EM_TINYJ Machine = 61 /* Advanced Logic Corp. TinyJ processor. */ 237 EM_X86_64 Machine = 62 /* Advanced Micro Devices x86-64 */ 238 239 /* Non-standard or deprecated. */ 240 EM_486 Machine = 6 /* Intel i486. */ 241 EM_MIPS_RS4_BE Machine = 10 /* MIPS R4000 Big-Endian */ 242 EM_ALPHA_STD Machine = 41 /* Digital Alpha (standard value). */ 243 EM_ALPHA Machine = 0x9026 /* Alpha (written in the absence of an ABI) */ 244 ) 245 246 var machineStrings = []intName{ 247 {0, "EM_NONE"}, 248 {1, "EM_M32"}, 249 {2, "EM_SPARC"}, 250 {3, "EM_386"}, 251 {4, "EM_68K"}, 252 {5, "EM_88K"}, 253 {7, "EM_860"}, 254 {8, "EM_MIPS"}, 255 {9, "EM_S370"}, 256 {10, "EM_MIPS_RS3_LE"}, 257 {15, "EM_PARISC"}, 258 {17, "EM_VPP500"}, 259 {18, "EM_SPARC32PLUS"}, 260 {19, "EM_960"}, 261 {20, "EM_PPC"}, 262 {21, "EM_PPC64"}, 263 {22, "EM_S390"}, 264 {36, "EM_V800"}, 265 {37, "EM_FR20"}, 266 {38, "EM_RH32"}, 267 {39, "EM_RCE"}, 268 {40, "EM_ARM"}, 269 {42, "EM_SH"}, 270 {43, "EM_SPARCV9"}, 271 {44, "EM_TRICORE"}, 272 {45, "EM_ARC"}, 273 {46, "EM_H8_300"}, 274 {47, "EM_H8_300H"}, 275 {48, "EM_H8S"}, 276 {49, "EM_H8_500"}, 277 {50, "EM_IA_64"}, 278 {51, "EM_MIPS_X"}, 279 {52, "EM_COLDFIRE"}, 280 {53, "EM_68HC12"}, 281 {54, "EM_MMA"}, 282 {55, "EM_PCP"}, 283 {56, "EM_NCPU"}, 284 {57, "EM_NDR1"}, 285 {58, "EM_STARCORE"}, 286 {59, "EM_ME16"}, 287 {60, "EM_ST100"}, 288 {61, "EM_TINYJ"}, 289 {62, "EM_X86_64"}, 290 291 /* Non-standard or deprecated. */ 292 {6, "EM_486"}, 293 {10, "EM_MIPS_RS4_BE"}, 294 {41, "EM_ALPHA_STD"}, 295 {0x9026, "EM_ALPHA"}, 296 } 297 298 func (i Machine) String() string { return stringName(uint32(i), machineStrings, false) } 299 func (i Machine) GoString() string { return stringName(uint32(i), machineStrings, true) } 300 301 // Special section indices. 302 type SectionIndex int 303 304 const ( 305 SHN_UNDEF SectionIndex = 0 /* Undefined, missing, irrelevant. */ 306 SHN_LORESERVE SectionIndex = 0xff00 /* First of reserved range. */ 307 SHN_LOPROC SectionIndex = 0xff00 /* First processor-specific. */ 308 SHN_HIPROC SectionIndex = 0xff1f /* Last processor-specific. */ 309 SHN_LOOS SectionIndex = 0xff20 /* First operating system-specific. */ 310 SHN_HIOS SectionIndex = 0xff3f /* Last operating system-specific. */ 311 SHN_ABS SectionIndex = 0xfff1 /* Absolute values. */ 312 SHN_COMMON SectionIndex = 0xfff2 /* Common data. */ 313 SHN_XINDEX SectionIndex = 0xffff /* Escape -- index stored elsewhere. */ 314 SHN_HIRESERVE SectionIndex = 0xffff /* Last of reserved range. */ 315 ) 316 317 var shnStrings = []intName{ 318 {0, "SHN_UNDEF"}, 319 {0xff00, "SHN_LOPROC"}, 320 {0xff20, "SHN_LOOS"}, 321 {0xfff1, "SHN_ABS"}, 322 {0xfff2, "SHN_COMMON"}, 323 {0xffff, "SHN_XINDEX"}, 324 } 325 326 func (i SectionIndex) String() string { return stringName(uint32(i), shnStrings, false) } 327 func (i SectionIndex) GoString() string { return stringName(uint32(i), shnStrings, true) } 328 329 // Section type. 330 type SectionType uint32 331 332 const ( 333 SHT_NULL SectionType = 0 /* inactive */ 334 SHT_PROGBITS SectionType = 1 /* program defined information */ 335 SHT_SYMTAB SectionType = 2 /* symbol table section */ 336 SHT_STRTAB SectionType = 3 /* string table section */ 337 SHT_RELA SectionType = 4 /* relocation section with addends */ 338 SHT_HASH SectionType = 5 /* symbol hash table section */ 339 SHT_DYNAMIC SectionType = 6 /* dynamic section */ 340 SHT_NOTE SectionType = 7 /* note section */ 341 SHT_NOBITS SectionType = 8 /* no space section */ 342 SHT_REL SectionType = 9 /* relocation section - no addends */ 343 SHT_SHLIB SectionType = 10 /* reserved - purpose unknown */ 344 SHT_DYNSYM SectionType = 11 /* dynamic symbol table section */ 345 SHT_INIT_ARRAY SectionType = 14 /* Initialization function pointers. */ 346 SHT_FINI_ARRAY SectionType = 15 /* Termination function pointers. */ 347 SHT_PREINIT_ARRAY SectionType = 16 /* Pre-initialization function ptrs. */ 348 SHT_GROUP SectionType = 17 /* Section group. */ 349 SHT_SYMTAB_SHNDX SectionType = 18 /* Section indexes (see SHN_XINDEX). */ 350 SHT_LOOS SectionType = 0x60000000 /* First of OS specific semantics */ 351 SHT_GNU_ATTRIBUTES SectionType = 0x6ffffff5 /* GNU object attributes */ 352 SHT_GNU_HASH SectionType = 0x6ffffff6 /* GNU hash table */ 353 SHT_GNU_LIBLIST SectionType = 0x6ffffff7 /* GNU prelink library list */ 354 SHT_GNU_VERDEF SectionType = 0x6ffffffd /* GNU version definition section */ 355 SHT_GNU_VERNEED SectionType = 0x6ffffffe /* GNU version needs section */ 356 SHT_GNU_VERSYM SectionType = 0x6fffffff /* GNU version symbol table */ 357 SHT_HIOS SectionType = 0x6fffffff /* Last of OS specific semantics */ 358 SHT_LOPROC SectionType = 0x70000000 /* reserved range for processor */ 359 SHT_HIPROC SectionType = 0x7fffffff /* specific section header types */ 360 SHT_LOUSER SectionType = 0x80000000 /* reserved range for application */ 361 SHT_HIUSER SectionType = 0xffffffff /* specific indexes */ 362 ) 363 364 var shtStrings = []intName{ 365 {0, "SHT_NULL"}, 366 {1, "SHT_PROGBITS"}, 367 {2, "SHT_SYMTAB"}, 368 {3, "SHT_STRTAB"}, 369 {4, "SHT_RELA"}, 370 {5, "SHT_HASH"}, 371 {6, "SHT_DYNAMIC"}, 372 {7, "SHT_NOTE"}, 373 {8, "SHT_NOBITS"}, 374 {9, "SHT_REL"}, 375 {10, "SHT_SHLIB"}, 376 {11, "SHT_DYNSYM"}, 377 {14, "SHT_INIT_ARRAY"}, 378 {15, "SHT_FINI_ARRAY"}, 379 {16, "SHT_PREINIT_ARRAY"}, 380 {17, "SHT_GROUP"}, 381 {18, "SHT_SYMTAB_SHNDX"}, 382 {0x60000000, "SHT_LOOS"}, 383 {0x6ffffff5, "SHT_GNU_ATTRIBUTES"}, 384 {0x6ffffff6, "SHT_GNU_HASH"}, 385 {0x6ffffff7, "SHT_GNU_LIBLIST"}, 386 {0x6ffffffd, "SHT_GNU_VERDEF"}, 387 {0x6ffffffe, "SHT_GNU_VERNEED"}, 388 {0x6fffffff, "SHT_GNU_VERSYM"}, 389 {0x70000000, "SHT_LOPROC"}, 390 {0x7fffffff, "SHT_HIPROC"}, 391 {0x80000000, "SHT_LOUSER"}, 392 {0xffffffff, "SHT_HIUSER"}, 393 } 394 395 func (i SectionType) String() string { return stringName(uint32(i), shtStrings, false) } 396 func (i SectionType) GoString() string { return stringName(uint32(i), shtStrings, true) } 397 398 // Section flags. 399 type SectionFlag uint32 400 401 const ( 402 SHF_WRITE SectionFlag = 0x1 /* Section contains writable data. */ 403 SHF_ALLOC SectionFlag = 0x2 /* Section occupies memory. */ 404 SHF_EXECINSTR SectionFlag = 0x4 /* Section contains instructions. */ 405 SHF_MERGE SectionFlag = 0x10 /* Section may be merged. */ 406 SHF_STRINGS SectionFlag = 0x20 /* Section contains strings. */ 407 SHF_INFO_LINK SectionFlag = 0x40 /* sh_info holds section index. */ 408 SHF_LINK_ORDER SectionFlag = 0x80 /* Special ordering requirements. */ 409 SHF_OS_NONCONFORMING SectionFlag = 0x100 /* OS-specific processing required. */ 410 SHF_GROUP SectionFlag = 0x200 /* Member of section group. */ 411 SHF_TLS SectionFlag = 0x400 /* Section contains TLS data. */ 412 SHF_MASKOS SectionFlag = 0x0ff00000 /* OS-specific semantics. */ 413 SHF_MASKPROC SectionFlag = 0xf0000000 /* Processor-specific semantics. */ 414 ) 415 416 var shfStrings = []intName{ 417 {0x1, "SHF_WRITE"}, 418 {0x2, "SHF_ALLOC"}, 419 {0x4, "SHF_EXECINSTR"}, 420 {0x10, "SHF_MERGE"}, 421 {0x20, "SHF_STRINGS"}, 422 {0x40, "SHF_INFO_LINK"}, 423 {0x80, "SHF_LINK_ORDER"}, 424 {0x100, "SHF_OS_NONCONFORMING"}, 425 {0x200, "SHF_GROUP"}, 426 {0x400, "SHF_TLS"}, 427 } 428 429 func (i SectionFlag) String() string { return flagName(uint32(i), shfStrings, false) } 430 func (i SectionFlag) GoString() string { return flagName(uint32(i), shfStrings, true) } 431 432 // Prog.Type 433 type ProgType int 434 435 const ( 436 PT_NULL ProgType = 0 /* Unused entry. */ 437 PT_LOAD ProgType = 1 /* Loadable segment. */ 438 PT_DYNAMIC ProgType = 2 /* Dynamic linking information segment. */ 439 PT_INTERP ProgType = 3 /* Pathname of interpreter. */ 440 PT_NOTE ProgType = 4 /* Auxiliary information. */ 441 PT_SHLIB ProgType = 5 /* Reserved (not used). */ 442 PT_PHDR ProgType = 6 /* Location of program header itself. */ 443 PT_TLS ProgType = 7 /* Thread local storage segment */ 444 PT_LOOS ProgType = 0x60000000 /* First OS-specific. */ 445 PT_HIOS ProgType = 0x6fffffff /* Last OS-specific. */ 446 PT_LOPROC ProgType = 0x70000000 /* First processor-specific type. */ 447 PT_HIPROC ProgType = 0x7fffffff /* Last processor-specific type. */ 448 ) 449 450 var ptStrings = []intName{ 451 {0, "PT_NULL"}, 452 {1, "PT_LOAD"}, 453 {2, "PT_DYNAMIC"}, 454 {3, "PT_INTERP"}, 455 {4, "PT_NOTE"}, 456 {5, "PT_SHLIB"}, 457 {6, "PT_PHDR"}, 458 {7, "PT_TLS"}, 459 {0x60000000, "PT_LOOS"}, 460 {0x6fffffff, "PT_HIOS"}, 461 {0x70000000, "PT_LOPROC"}, 462 {0x7fffffff, "PT_HIPROC"}, 463 } 464 465 func (i ProgType) String() string { return stringName(uint32(i), ptStrings, false) } 466 func (i ProgType) GoString() string { return stringName(uint32(i), ptStrings, true) } 467 468 // Prog.Flag 469 type ProgFlag uint32 470 471 const ( 472 PF_X ProgFlag = 0x1 /* Executable. */ 473 PF_W ProgFlag = 0x2 /* Writable. */ 474 PF_R ProgFlag = 0x4 /* Readable. */ 475 PF_MASKOS ProgFlag = 0x0ff00000 /* Operating system-specific. */ 476 PF_MASKPROC ProgFlag = 0xf0000000 /* Processor-specific. */ 477 ) 478 479 var pfStrings = []intName{ 480 {0x1, "PF_X"}, 481 {0x2, "PF_W"}, 482 {0x4, "PF_R"}, 483 } 484 485 func (i ProgFlag) String() string { return flagName(uint32(i), pfStrings, false) } 486 func (i ProgFlag) GoString() string { return flagName(uint32(i), pfStrings, true) } 487 488 // Dyn.Tag 489 type DynTag int 490 491 const ( 492 DT_NULL DynTag = 0 /* Terminating entry. */ 493 DT_NEEDED DynTag = 1 /* String table offset of a needed shared library. */ 494 DT_PLTRELSZ DynTag = 2 /* Total size in bytes of PLT relocations. */ 495 DT_PLTGOT DynTag = 3 /* Processor-dependent address. */ 496 DT_HASH DynTag = 4 /* Address of symbol hash table. */ 497 DT_STRTAB DynTag = 5 /* Address of string table. */ 498 DT_SYMTAB DynTag = 6 /* Address of symbol table. */ 499 DT_RELA DynTag = 7 /* Address of ElfNN_Rela relocations. */ 500 DT_RELASZ DynTag = 8 /* Total size of ElfNN_Rela relocations. */ 501 DT_RELAENT DynTag = 9 /* Size of each ElfNN_Rela relocation entry. */ 502 DT_STRSZ DynTag = 10 /* Size of string table. */ 503 DT_SYMENT DynTag = 11 /* Size of each symbol table entry. */ 504 DT_INIT DynTag = 12 /* Address of initialization function. */ 505 DT_FINI DynTag = 13 /* Address of finalization function. */ 506 DT_SONAME DynTag = 14 /* String table offset of shared object name. */ 507 DT_RPATH DynTag = 15 /* String table offset of library path. [sup] */ 508 DT_SYMBOLIC DynTag = 16 /* Indicates "symbolic" linking. [sup] */ 509 DT_REL DynTag = 17 /* Address of ElfNN_Rel relocations. */ 510 DT_RELSZ DynTag = 18 /* Total size of ElfNN_Rel relocations. */ 511 DT_RELENT DynTag = 19 /* Size of each ElfNN_Rel relocation. */ 512 DT_PLTREL DynTag = 20 /* Type of relocation used for PLT. */ 513 DT_DEBUG DynTag = 21 /* Reserved (not used). */ 514 DT_TEXTREL DynTag = 22 /* Indicates there may be relocations in non-writable segments. [sup] */ 515 DT_JMPREL DynTag = 23 /* Address of PLT relocations. */ 516 DT_BIND_NOW DynTag = 24 /* [sup] */ 517 DT_INIT_ARRAY DynTag = 25 /* Address of the array of pointers to initialization functions */ 518 DT_FINI_ARRAY DynTag = 26 /* Address of the array of pointers to termination functions */ 519 DT_INIT_ARRAYSZ DynTag = 27 /* Size in bytes of the array of initialization functions. */ 520 DT_FINI_ARRAYSZ DynTag = 28 /* Size in bytes of the array of terminationfunctions. */ 521 DT_RUNPATH DynTag = 29 /* String table offset of a null-terminated library search path string. */ 522 DT_FLAGS DynTag = 30 /* Object specific flag values. */ 523 DT_ENCODING DynTag = 32 /* Values greater than or equal to DT_ENCODING 524 and less than DT_LOOS follow the rules for 525 the interpretation of the d_un union 526 as follows: even == 'd_ptr', even == 'd_val' 527 or none */ 528 DT_PREINIT_ARRAY DynTag = 32 /* Address of the array of pointers to pre-initialization functions. */ 529 DT_PREINIT_ARRAYSZ DynTag = 33 /* Size in bytes of the array of pre-initialization functions. */ 530 DT_LOOS DynTag = 0x6000000d /* First OS-specific */ 531 DT_HIOS DynTag = 0x6ffff000 /* Last OS-specific */ 532 DT_VERSYM DynTag = 0x6ffffff0 533 DT_VERNEED DynTag = 0x6ffffffe 534 DT_VERNEEDNUM DynTag = 0x6fffffff 535 DT_LOPROC DynTag = 0x70000000 /* First processor-specific type. */ 536 DT_HIPROC DynTag = 0x7fffffff /* Last processor-specific type. */ 537 ) 538 539 var dtStrings = []intName{ 540 {0, "DT_NULL"}, 541 {1, "DT_NEEDED"}, 542 {2, "DT_PLTRELSZ"}, 543 {3, "DT_PLTGOT"}, 544 {4, "DT_HASH"}, 545 {5, "DT_STRTAB"}, 546 {6, "DT_SYMTAB"}, 547 {7, "DT_RELA"}, 548 {8, "DT_RELASZ"}, 549 {9, "DT_RELAENT"}, 550 {10, "DT_STRSZ"}, 551 {11, "DT_SYMENT"}, 552 {12, "DT_INIT"}, 553 {13, "DT_FINI"}, 554 {14, "DT_SONAME"}, 555 {15, "DT_RPATH"}, 556 {16, "DT_SYMBOLIC"}, 557 {17, "DT_REL"}, 558 {18, "DT_RELSZ"}, 559 {19, "DT_RELENT"}, 560 {20, "DT_PLTREL"}, 561 {21, "DT_DEBUG"}, 562 {22, "DT_TEXTREL"}, 563 {23, "DT_JMPREL"}, 564 {24, "DT_BIND_NOW"}, 565 {25, "DT_INIT_ARRAY"}, 566 {26, "DT_FINI_ARRAY"}, 567 {27, "DT_INIT_ARRAYSZ"}, 568 {28, "DT_FINI_ARRAYSZ"}, 569 {29, "DT_RUNPATH"}, 570 {30, "DT_FLAGS"}, 571 {32, "DT_ENCODING"}, 572 {32, "DT_PREINIT_ARRAY"}, 573 {33, "DT_PREINIT_ARRAYSZ"}, 574 {0x6000000d, "DT_LOOS"}, 575 {0x6ffff000, "DT_HIOS"}, 576 {0x6ffffff0, "DT_VERSYM"}, 577 {0x6ffffffe, "DT_VERNEED"}, 578 {0x6fffffff, "DT_VERNEEDNUM"}, 579 {0x70000000, "DT_LOPROC"}, 580 {0x7fffffff, "DT_HIPROC"}, 581 } 582 583 func (i DynTag) String() string { return stringName(uint32(i), dtStrings, false) } 584 func (i DynTag) GoString() string { return stringName(uint32(i), dtStrings, true) } 585 586 // DT_FLAGS values. 587 type DynFlag int 588 589 const ( 590 DF_ORIGIN DynFlag = 0x0001 /* Indicates that the object being loaded may 591 make reference to the 592 $ORIGIN substitution string */ 593 DF_SYMBOLIC DynFlag = 0x0002 /* Indicates "symbolic" linking. */ 594 DF_TEXTREL DynFlag = 0x0004 /* Indicates there may be relocations in non-writable segments. */ 595 DF_BIND_NOW DynFlag = 0x0008 /* Indicates that the dynamic linker should 596 process all relocations for the object 597 containing this entry before transferring 598 control to the program. */ 599 DF_STATIC_TLS DynFlag = 0x0010 /* Indicates that the shared object or 600 executable contains code using a static 601 thread-local storage scheme. */ 602 ) 603 604 var dflagStrings = []intName{ 605 {0x0001, "DF_ORIGIN"}, 606 {0x0002, "DF_SYMBOLIC"}, 607 {0x0004, "DF_TEXTREL"}, 608 {0x0008, "DF_BIND_NOW"}, 609 {0x0010, "DF_STATIC_TLS"}, 610 } 611 612 func (i DynFlag) String() string { return flagName(uint32(i), dflagStrings, false) } 613 func (i DynFlag) GoString() string { return flagName(uint32(i), dflagStrings, true) } 614 615 // NType values; used in core files. 616 type NType int 617 618 const ( 619 NT_PRSTATUS NType = 1 /* Process status. */ 620 NT_FPREGSET NType = 2 /* Floating point registers. */ 621 NT_PRPSINFO NType = 3 /* Process state info. */ 622 ) 623 624 var ntypeStrings = []intName{ 625 {1, "NT_PRSTATUS"}, 626 {2, "NT_FPREGSET"}, 627 {3, "NT_PRPSINFO"}, 628 } 629 630 func (i NType) String() string { return stringName(uint32(i), ntypeStrings, false) } 631 func (i NType) GoString() string { return stringName(uint32(i), ntypeStrings, true) } 632 633 /* Symbol Binding - ELFNN_ST_BIND - st_info */ 634 type SymBind int 635 636 const ( 637 STB_LOCAL SymBind = 0 /* Local symbol */ 638 STB_GLOBAL SymBind = 1 /* Global symbol */ 639 STB_WEAK SymBind = 2 /* like global - lower precedence */ 640 STB_LOOS SymBind = 10 /* Reserved range for operating system */ 641 STB_HIOS SymBind = 12 /* specific semantics. */ 642 STB_LOPROC SymBind = 13 /* reserved range for processor */ 643 STB_HIPROC SymBind = 15 /* specific semantics. */ 644 ) 645 646 var stbStrings = []intName{ 647 {0, "STB_LOCAL"}, 648 {1, "STB_GLOBAL"}, 649 {2, "STB_WEAK"}, 650 {10, "STB_LOOS"}, 651 {12, "STB_HIOS"}, 652 {13, "STB_LOPROC"}, 653 {15, "STB_HIPROC"}, 654 } 655 656 func (i SymBind) String() string { return stringName(uint32(i), stbStrings, false) } 657 func (i SymBind) GoString() string { return stringName(uint32(i), stbStrings, true) } 658 659 /* Symbol type - ELFNN_ST_TYPE - st_info */ 660 type SymType int 661 662 const ( 663 STT_NOTYPE SymType = 0 /* Unspecified type. */ 664 STT_OBJECT SymType = 1 /* Data object. */ 665 STT_FUNC SymType = 2 /* Function. */ 666 STT_SECTION SymType = 3 /* Section. */ 667 STT_FILE SymType = 4 /* Source file. */ 668 STT_COMMON SymType = 5 /* Uninitialized common block. */ 669 STT_TLS SymType = 6 /* TLS object. */ 670 STT_LOOS SymType = 10 /* Reserved range for operating system */ 671 STT_HIOS SymType = 12 /* specific semantics. */ 672 STT_LOPROC SymType = 13 /* reserved range for processor */ 673 STT_HIPROC SymType = 15 /* specific semantics. */ 674 ) 675 676 var sttStrings = []intName{ 677 {0, "STT_NOTYPE"}, 678 {1, "STT_OBJECT"}, 679 {2, "STT_FUNC"}, 680 {3, "STT_SECTION"}, 681 {4, "STT_FILE"}, 682 {5, "STT_COMMON"}, 683 {6, "STT_TLS"}, 684 {10, "STT_LOOS"}, 685 {12, "STT_HIOS"}, 686 {13, "STT_LOPROC"}, 687 {15, "STT_HIPROC"}, 688 } 689 690 func (i SymType) String() string { return stringName(uint32(i), sttStrings, false) } 691 func (i SymType) GoString() string { return stringName(uint32(i), sttStrings, true) } 692 693 /* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */ 694 type SymVis int 695 696 const ( 697 STV_DEFAULT SymVis = 0x0 /* Default visibility (see binding). */ 698 STV_INTERNAL SymVis = 0x1 /* Special meaning in relocatable objects. */ 699 STV_HIDDEN SymVis = 0x2 /* Not visible. */ 700 STV_PROTECTED SymVis = 0x3 /* Visible but not preemptible. */ 701 ) 702 703 var stvStrings = []intName{ 704 {0x0, "STV_DEFAULT"}, 705 {0x1, "STV_INTERNAL"}, 706 {0x2, "STV_HIDDEN"}, 707 {0x3, "STV_PROTECTED"}, 708 } 709 710 func (i SymVis) String() string { return stringName(uint32(i), stvStrings, false) } 711 func (i SymVis) GoString() string { return stringName(uint32(i), stvStrings, true) } 712 713 /* 714 * Relocation types. 715 */ 716 717 // Relocation types for x86-64. 718 type R_X86_64 int 719 720 const ( 721 R_X86_64_NONE R_X86_64 = 0 /* No relocation. */ 722 R_X86_64_64 R_X86_64 = 1 /* Add 64 bit symbol value. */ 723 R_X86_64_PC32 R_X86_64 = 2 /* PC-relative 32 bit signed sym value. */ 724 R_X86_64_GOT32 R_X86_64 = 3 /* PC-relative 32 bit GOT offset. */ 725 R_X86_64_PLT32 R_X86_64 = 4 /* PC-relative 32 bit PLT offset. */ 726 R_X86_64_COPY R_X86_64 = 5 /* Copy data from shared object. */ 727 R_X86_64_GLOB_DAT R_X86_64 = 6 /* Set GOT entry to data address. */ 728 R_X86_64_JMP_SLOT R_X86_64 = 7 /* Set GOT entry to code address. */ 729 R_X86_64_RELATIVE R_X86_64 = 8 /* Add load address of shared object. */ 730 R_X86_64_GOTPCREL R_X86_64 = 9 /* Add 32 bit signed pcrel offset to GOT. */ 731 R_X86_64_32 R_X86_64 = 10 /* Add 32 bit zero extended symbol value */ 732 R_X86_64_32S R_X86_64 = 11 /* Add 32 bit sign extended symbol value */ 733 R_X86_64_16 R_X86_64 = 12 /* Add 16 bit zero extended symbol value */ 734 R_X86_64_PC16 R_X86_64 = 13 /* Add 16 bit signed extended pc relative symbol value */ 735 R_X86_64_8 R_X86_64 = 14 /* Add 8 bit zero extended symbol value */ 736 R_X86_64_PC8 R_X86_64 = 15 /* Add 8 bit signed extended pc relative symbol value */ 737 R_X86_64_DTPMOD64 R_X86_64 = 16 /* ID of module containing symbol */ 738 R_X86_64_DTPOFF64 R_X86_64 = 17 /* Offset in TLS block */ 739 R_X86_64_TPOFF64 R_X86_64 = 18 /* Offset in static TLS block */ 740 R_X86_64_TLSGD R_X86_64 = 19 /* PC relative offset to GD GOT entry */ 741 R_X86_64_TLSLD R_X86_64 = 20 /* PC relative offset to LD GOT entry */ 742 R_X86_64_DTPOFF32 R_X86_64 = 21 /* Offset in TLS block */ 743 R_X86_64_GOTTPOFF R_X86_64 = 22 /* PC relative offset to IE GOT entry */ 744 R_X86_64_TPOFF32 R_X86_64 = 23 /* Offset in static TLS block */ 745 ) 746 747 var rx86_64Strings = []intName{ 748 {0, "R_X86_64_NONE"}, 749 {1, "R_X86_64_64"}, 750 {2, "R_X86_64_PC32"}, 751 {3, "R_X86_64_GOT32"}, 752 {4, "R_X86_64_PLT32"}, 753 {5, "R_X86_64_COPY"}, 754 {6, "R_X86_64_GLOB_DAT"}, 755 {7, "R_X86_64_JMP_SLOT"}, 756 {8, "R_X86_64_RELATIVE"}, 757 {9, "R_X86_64_GOTPCREL"}, 758 {10, "R_X86_64_32"}, 759 {11, "R_X86_64_32S"}, 760 {12, "R_X86_64_16"}, 761 {13, "R_X86_64_PC16"}, 762 {14, "R_X86_64_8"}, 763 {15, "R_X86_64_PC8"}, 764 {16, "R_X86_64_DTPMOD64"}, 765 {17, "R_X86_64_DTPOFF64"}, 766 {18, "R_X86_64_TPOFF64"}, 767 {19, "R_X86_64_TLSGD"}, 768 {20, "R_X86_64_TLSLD"}, 769 {21, "R_X86_64_DTPOFF32"}, 770 {22, "R_X86_64_GOTTPOFF"}, 771 {23, "R_X86_64_TPOFF32"}, 772 } 773 774 func (i R_X86_64) String() string { return stringName(uint32(i), rx86_64Strings, false) } 775 func (i R_X86_64) GoString() string { return stringName(uint32(i), rx86_64Strings, true) } 776 777 // Relocation types for Alpha. 778 type R_ALPHA int 779 780 const ( 781 R_ALPHA_NONE R_ALPHA = 0 /* No reloc */ 782 R_ALPHA_REFLONG R_ALPHA = 1 /* Direct 32 bit */ 783 R_ALPHA_REFQUAD R_ALPHA = 2 /* Direct 64 bit */ 784 R_ALPHA_GPREL32 R_ALPHA = 3 /* GP relative 32 bit */ 785 R_ALPHA_LITERAL R_ALPHA = 4 /* GP relative 16 bit w/optimization */ 786 R_ALPHA_LITUSE R_ALPHA = 5 /* Optimization hint for LITERAL */ 787 R_ALPHA_GPDISP R_ALPHA = 6 /* Add displacement to GP */ 788 R_ALPHA_BRADDR R_ALPHA = 7 /* PC+4 relative 23 bit shifted */ 789 R_ALPHA_HINT R_ALPHA = 8 /* PC+4 relative 16 bit shifted */ 790 R_ALPHA_SREL16 R_ALPHA = 9 /* PC relative 16 bit */ 791 R_ALPHA_SREL32 R_ALPHA = 10 /* PC relative 32 bit */ 792 R_ALPHA_SREL64 R_ALPHA = 11 /* PC relative 64 bit */ 793 R_ALPHA_OP_PUSH R_ALPHA = 12 /* OP stack push */ 794 R_ALPHA_OP_STORE R_ALPHA = 13 /* OP stack pop and store */ 795 R_ALPHA_OP_PSUB R_ALPHA = 14 /* OP stack subtract */ 796 R_ALPHA_OP_PRSHIFT R_ALPHA = 15 /* OP stack right shift */ 797 R_ALPHA_GPVALUE R_ALPHA = 16 798 R_ALPHA_GPRELHIGH R_ALPHA = 17 799 R_ALPHA_GPRELLOW R_ALPHA = 18 800 R_ALPHA_IMMED_GP_16 R_ALPHA = 19 801 R_ALPHA_IMMED_GP_HI32 R_ALPHA = 20 802 R_ALPHA_IMMED_SCN_HI32 R_ALPHA = 21 803 R_ALPHA_IMMED_BR_HI32 R_ALPHA = 22 804 R_ALPHA_IMMED_LO32 R_ALPHA = 23 805 R_ALPHA_COPY R_ALPHA = 24 /* Copy symbol at runtime */ 806 R_ALPHA_GLOB_DAT R_ALPHA = 25 /* Create GOT entry */ 807 R_ALPHA_JMP_SLOT R_ALPHA = 26 /* Create PLT entry */ 808 R_ALPHA_RELATIVE R_ALPHA = 27 /* Adjust by program base */ 809 ) 810 811 var ralphaStrings = []intName{ 812 {0, "R_ALPHA_NONE"}, 813 {1, "R_ALPHA_REFLONG"}, 814 {2, "R_ALPHA_REFQUAD"}, 815 {3, "R_ALPHA_GPREL32"}, 816 {4, "R_ALPHA_LITERAL"}, 817 {5, "R_ALPHA_LITUSE"}, 818 {6, "R_ALPHA_GPDISP"}, 819 {7, "R_ALPHA_BRADDR"}, 820 {8, "R_ALPHA_HINT"}, 821 {9, "R_ALPHA_SREL16"}, 822 {10, "R_ALPHA_SREL32"}, 823 {11, "R_ALPHA_SREL64"}, 824 {12, "R_ALPHA_OP_PUSH"}, 825 {13, "R_ALPHA_OP_STORE"}, 826 {14, "R_ALPHA_OP_PSUB"}, 827 {15, "R_ALPHA_OP_PRSHIFT"}, 828 {16, "R_ALPHA_GPVALUE"}, 829 {17, "R_ALPHA_GPRELHIGH"}, 830 {18, "R_ALPHA_GPRELLOW"}, 831 {19, "R_ALPHA_IMMED_GP_16"}, 832 {20, "R_ALPHA_IMMED_GP_HI32"}, 833 {21, "R_ALPHA_IMMED_SCN_HI32"}, 834 {22, "R_ALPHA_IMMED_BR_HI32"}, 835 {23, "R_ALPHA_IMMED_LO32"}, 836 {24, "R_ALPHA_COPY"}, 837 {25, "R_ALPHA_GLOB_DAT"}, 838 {26, "R_ALPHA_JMP_SLOT"}, 839 {27, "R_ALPHA_RELATIVE"}, 840 } 841 842 func (i R_ALPHA) String() string { return stringName(uint32(i), ralphaStrings, false) } 843 func (i R_ALPHA) GoString() string { return stringName(uint32(i), ralphaStrings, true) } 844 845 // Relocation types for ARM. 846 type R_ARM int 847 848 const ( 849 R_ARM_NONE R_ARM = 0 /* No relocation. */ 850 R_ARM_PC24 R_ARM = 1 851 R_ARM_ABS32 R_ARM = 2 852 R_ARM_REL32 R_ARM = 3 853 R_ARM_PC13 R_ARM = 4 854 R_ARM_ABS16 R_ARM = 5 855 R_ARM_ABS12 R_ARM = 6 856 R_ARM_THM_ABS5 R_ARM = 7 857 R_ARM_ABS8 R_ARM = 8 858 R_ARM_SBREL32 R_ARM = 9 859 R_ARM_THM_PC22 R_ARM = 10 860 R_ARM_THM_PC8 R_ARM = 11 861 R_ARM_AMP_VCALL9 R_ARM = 12 862 R_ARM_SWI24 R_ARM = 13 863 R_ARM_THM_SWI8 R_ARM = 14 864 R_ARM_XPC25 R_ARM = 15 865 R_ARM_THM_XPC22 R_ARM = 16 866 R_ARM_COPY R_ARM = 20 /* Copy data from shared object. */ 867 R_ARM_GLOB_DAT R_ARM = 21 /* Set GOT entry to data address. */ 868 R_ARM_JUMP_SLOT R_ARM = 22 /* Set GOT entry to code address. */ 869 R_ARM_RELATIVE R_ARM = 23 /* Add load address of shared object. */ 870 R_ARM_GOTOFF R_ARM = 24 /* Add GOT-relative symbol address. */ 871 R_ARM_GOTPC R_ARM = 25 /* Add PC-relative GOT table address. */ 872 R_ARM_GOT32 R_ARM = 26 /* Add PC-relative GOT offset. */ 873 R_ARM_PLT32 R_ARM = 27 /* Add PC-relative PLT offset. */ 874 R_ARM_GNU_VTENTRY R_ARM = 100 875 R_ARM_GNU_VTINHERIT R_ARM = 101 876 R_ARM_RSBREL32 R_ARM = 250 877 R_ARM_THM_RPC22 R_ARM = 251 878 R_ARM_RREL32 R_ARM = 252 879 R_ARM_RABS32 R_ARM = 253 880 R_ARM_RPC24 R_ARM = 254 881 R_ARM_RBASE R_ARM = 255 882 ) 883 884 var rarmStrings = []intName{ 885 {0, "R_ARM_NONE"}, 886 {1, "R_ARM_PC24"}, 887 {2, "R_ARM_ABS32"}, 888 {3, "R_ARM_REL32"}, 889 {4, "R_ARM_PC13"}, 890 {5, "R_ARM_ABS16"}, 891 {6, "R_ARM_ABS12"}, 892 {7, "R_ARM_THM_ABS5"}, 893 {8, "R_ARM_ABS8"}, 894 {9, "R_ARM_SBREL32"}, 895 {10, "R_ARM_THM_PC22"}, 896 {11, "R_ARM_THM_PC8"}, 897 {12, "R_ARM_AMP_VCALL9"}, 898 {13, "R_ARM_SWI24"}, 899 {14, "R_ARM_THM_SWI8"}, 900 {15, "R_ARM_XPC25"}, 901 {16, "R_ARM_THM_XPC22"}, 902 {20, "R_ARM_COPY"}, 903 {21, "R_ARM_GLOB_DAT"}, 904 {22, "R_ARM_JUMP_SLOT"}, 905 {23, "R_ARM_RELATIVE"}, 906 {24, "R_ARM_GOTOFF"}, 907 {25, "R_ARM_GOTPC"}, 908 {26, "R_ARM_GOT32"}, 909 {27, "R_ARM_PLT32"}, 910 {100, "R_ARM_GNU_VTENTRY"}, 911 {101, "R_ARM_GNU_VTINHERIT"}, 912 {250, "R_ARM_RSBREL32"}, 913 {251, "R_ARM_THM_RPC22"}, 914 {252, "R_ARM_RREL32"}, 915 {253, "R_ARM_RABS32"}, 916 {254, "R_ARM_RPC24"}, 917 {255, "R_ARM_RBASE"}, 918 } 919 920 func (i R_ARM) String() string { return stringName(uint32(i), rarmStrings, false) } 921 func (i R_ARM) GoString() string { return stringName(uint32(i), rarmStrings, true) } 922 923 // Relocation types for 386. 924 type R_386 int 925 926 const ( 927 R_386_NONE R_386 = 0 /* No relocation. */ 928 R_386_32 R_386 = 1 /* Add symbol value. */ 929 R_386_PC32 R_386 = 2 /* Add PC-relative symbol value. */ 930 R_386_GOT32 R_386 = 3 /* Add PC-relative GOT offset. */ 931 R_386_PLT32 R_386 = 4 /* Add PC-relative PLT offset. */ 932 R_386_COPY R_386 = 5 /* Copy data from shared object. */ 933 R_386_GLOB_DAT R_386 = 6 /* Set GOT entry to data address. */ 934 R_386_JMP_SLOT R_386 = 7 /* Set GOT entry to code address. */ 935 R_386_RELATIVE R_386 = 8 /* Add load address of shared object. */ 936 R_386_GOTOFF R_386 = 9 /* Add GOT-relative symbol address. */ 937 R_386_GOTPC R_386 = 10 /* Add PC-relative GOT table address. */ 938 R_386_TLS_TPOFF R_386 = 14 /* Negative offset in static TLS block */ 939 R_386_TLS_IE R_386 = 15 /* Absolute address of GOT for -ve static TLS */ 940 R_386_TLS_GOTIE R_386 = 16 /* GOT entry for negative static TLS block */ 941 R_386_TLS_LE R_386 = 17 /* Negative offset relative to static TLS */ 942 R_386_TLS_GD R_386 = 18 /* 32 bit offset to GOT (index,off) pair */ 943 R_386_TLS_LDM R_386 = 19 /* 32 bit offset to GOT (index,zero) pair */ 944 R_386_TLS_GD_32 R_386 = 24 /* 32 bit offset to GOT (index,off) pair */ 945 R_386_TLS_GD_PUSH R_386 = 25 /* pushl instruction for Sun ABI GD sequence */ 946 R_386_TLS_GD_CALL R_386 = 26 /* call instruction for Sun ABI GD sequence */ 947 R_386_TLS_GD_POP R_386 = 27 /* popl instruction for Sun ABI GD sequence */ 948 R_386_TLS_LDM_32 R_386 = 28 /* 32 bit offset to GOT (index,zero) pair */ 949 R_386_TLS_LDM_PUSH R_386 = 29 /* pushl instruction for Sun ABI LD sequence */ 950 R_386_TLS_LDM_CALL R_386 = 30 /* call instruction for Sun ABI LD sequence */ 951 R_386_TLS_LDM_POP R_386 = 31 /* popl instruction for Sun ABI LD sequence */ 952 R_386_TLS_LDO_32 R_386 = 32 /* 32 bit offset from start of TLS block */ 953 R_386_TLS_IE_32 R_386 = 33 /* 32 bit offset to GOT static TLS offset entry */ 954 R_386_TLS_LE_32 R_386 = 34 /* 32 bit offset within static TLS block */ 955 R_386_TLS_DTPMOD32 R_386 = 35 /* GOT entry containing TLS index */ 956 R_386_TLS_DTPOFF32 R_386 = 36 /* GOT entry containing TLS offset */ 957 R_386_TLS_TPOFF32 R_386 = 37 /* GOT entry of -ve static TLS offset */ 958 ) 959 960 var r386Strings = []intName{ 961 {0, "R_386_NONE"}, 962 {1, "R_386_32"}, 963 {2, "R_386_PC32"}, 964 {3, "R_386_GOT32"}, 965 {4, "R_386_PLT32"}, 966 {5, "R_386_COPY"}, 967 {6, "R_386_GLOB_DAT"}, 968 {7, "R_386_JMP_SLOT"}, 969 {8, "R_386_RELATIVE"}, 970 {9, "R_386_GOTOFF"}, 971 {10, "R_386_GOTPC"}, 972 {14, "R_386_TLS_TPOFF"}, 973 {15, "R_386_TLS_IE"}, 974 {16, "R_386_TLS_GOTIE"}, 975 {17, "R_386_TLS_LE"}, 976 {18, "R_386_TLS_GD"}, 977 {19, "R_386_TLS_LDM"}, 978 {24, "R_386_TLS_GD_32"}, 979 {25, "R_386_TLS_GD_PUSH"}, 980 {26, "R_386_TLS_GD_CALL"}, 981 {27, "R_386_TLS_GD_POP"}, 982 {28, "R_386_TLS_LDM_32"}, 983 {29, "R_386_TLS_LDM_PUSH"}, 984 {30, "R_386_TLS_LDM_CALL"}, 985 {31, "R_386_TLS_LDM_POP"}, 986 {32, "R_386_TLS_LDO_32"}, 987 {33, "R_386_TLS_IE_32"}, 988 {34, "R_386_TLS_LE_32"}, 989 {35, "R_386_TLS_DTPMOD32"}, 990 {36, "R_386_TLS_DTPOFF32"}, 991 {37, "R_386_TLS_TPOFF32"}, 992 } 993 994 func (i R_386) String() string { return stringName(uint32(i), r386Strings, false) } 995 func (i R_386) GoString() string { return stringName(uint32(i), r386Strings, true) } 996 997 // Relocation types for PowerPC. 998 type R_PPC int 999 1000 const ( 1001 R_PPC_NONE R_PPC = 0 /* No relocation. */ 1002 R_PPC_ADDR32 R_PPC = 1 1003 R_PPC_ADDR24 R_PPC = 2 1004 R_PPC_ADDR16 R_PPC = 3 1005 R_PPC_ADDR16_LO R_PPC = 4 1006 R_PPC_ADDR16_HI R_PPC = 5 1007 R_PPC_ADDR16_HA R_PPC = 6 1008 R_PPC_ADDR14 R_PPC = 7 1009 R_PPC_ADDR14_BRTAKEN R_PPC = 8 1010 R_PPC_ADDR14_BRNTAKEN R_PPC = 9 1011 R_PPC_REL24 R_PPC = 10 1012 R_PPC_REL14 R_PPC = 11 1013 R_PPC_REL14_BRTAKEN R_PPC = 12 1014 R_PPC_REL14_BRNTAKEN R_PPC = 13 1015 R_PPC_GOT16 R_PPC = 14 1016 R_PPC_GOT16_LO R_PPC = 15 1017 R_PPC_GOT16_HI R_PPC = 16 1018 R_PPC_GOT16_HA R_PPC = 17 1019 R_PPC_PLTREL24 R_PPC = 18 1020 R_PPC_COPY R_PPC = 19 1021 R_PPC_GLOB_DAT R_PPC = 20 1022 R_PPC_JMP_SLOT R_PPC = 21 1023 R_PPC_RELATIVE R_PPC = 22 1024 R_PPC_LOCAL24PC R_PPC = 23 1025 R_PPC_UADDR32 R_PPC = 24 1026 R_PPC_UADDR16 R_PPC = 25 1027 R_PPC_REL32 R_PPC = 26 1028 R_PPC_PLT32 R_PPC = 27 1029 R_PPC_PLTREL32 R_PPC = 28 1030 R_PPC_PLT16_LO R_PPC = 29 1031 R_PPC_PLT16_HI R_PPC = 30 1032 R_PPC_PLT16_HA R_PPC = 31 1033 R_PPC_SDAREL16 R_PPC = 32 1034 R_PPC_SECTOFF R_PPC = 33 1035 R_PPC_SECTOFF_LO R_PPC = 34 1036 R_PPC_SECTOFF_HI R_PPC = 35 1037 R_PPC_SECTOFF_HA R_PPC = 36 1038 R_PPC_TLS R_PPC = 67 1039 R_PPC_DTPMOD32 R_PPC = 68 1040 R_PPC_TPREL16 R_PPC = 69 1041 R_PPC_TPREL16_LO R_PPC = 70 1042 R_PPC_TPREL16_HI R_PPC = 71 1043 R_PPC_TPREL16_HA R_PPC = 72 1044 R_PPC_TPREL32 R_PPC = 73 1045 R_PPC_DTPREL16 R_PPC = 74 1046 R_PPC_DTPREL16_LO R_PPC = 75 1047 R_PPC_DTPREL16_HI R_PPC = 76 1048 R_PPC_DTPREL16_HA R_PPC = 77 1049 R_PPC_DTPREL32 R_PPC = 78 1050 R_PPC_GOT_TLSGD16 R_PPC = 79 1051 R_PPC_GOT_TLSGD16_LO R_PPC = 80 1052 R_PPC_GOT_TLSGD16_HI R_PPC = 81 1053 R_PPC_GOT_TLSGD16_HA R_PPC = 82 1054 R_PPC_GOT_TLSLD16 R_PPC = 83 1055 R_PPC_GOT_TLSLD16_LO R_PPC = 84 1056 R_PPC_GOT_TLSLD16_HI R_PPC = 85 1057 R_PPC_GOT_TLSLD16_HA R_PPC = 86 1058 R_PPC_GOT_TPREL16 R_PPC = 87 1059 R_PPC_GOT_TPREL16_LO R_PPC = 88 1060 R_PPC_GOT_TPREL16_HI R_PPC = 89 1061 R_PPC_GOT_TPREL16_HA R_PPC = 90 1062 R_PPC_EMB_NADDR32 R_PPC = 101 1063 R_PPC_EMB_NADDR16 R_PPC = 102 1064 R_PPC_EMB_NADDR16_LO R_PPC = 103 1065 R_PPC_EMB_NADDR16_HI R_PPC = 104 1066 R_PPC_EMB_NADDR16_HA R_PPC = 105 1067 R_PPC_EMB_SDAI16 R_PPC = 106 1068 R_PPC_EMB_SDA2I16 R_PPC = 107 1069 R_PPC_EMB_SDA2REL R_PPC = 108 1070 R_PPC_EMB_SDA21 R_PPC = 109 1071 R_PPC_EMB_MRKREF R_PPC = 110 1072 R_PPC_EMB_RELSEC16 R_PPC = 111 1073 R_PPC_EMB_RELST_LO R_PPC = 112 1074 R_PPC_EMB_RELST_HI R_PPC = 113 1075 R_PPC_EMB_RELST_HA R_PPC = 114 1076 R_PPC_EMB_BIT_FLD R_PPC = 115 1077 R_PPC_EMB_RELSDA R_PPC = 116 1078 ) 1079 1080 var rppcStrings = []intName{ 1081 {0, "R_PPC_NONE"}, 1082 {1, "R_PPC_ADDR32"}, 1083 {2, "R_PPC_ADDR24"}, 1084 {3, "R_PPC_ADDR16"}, 1085 {4, "R_PPC_ADDR16_LO"}, 1086 {5, "R_PPC_ADDR16_HI"}, 1087 {6, "R_PPC_ADDR16_HA"}, 1088 {7, "R_PPC_ADDR14"}, 1089 {8, "R_PPC_ADDR14_BRTAKEN"}, 1090 {9, "R_PPC_ADDR14_BRNTAKEN"}, 1091 {10, "R_PPC_REL24"}, 1092 {11, "R_PPC_REL14"}, 1093 {12, "R_PPC_REL14_BRTAKEN"}, 1094 {13, "R_PPC_REL14_BRNTAKEN"}, 1095 {14, "R_PPC_GOT16"}, 1096 {15, "R_PPC_GOT16_LO"}, 1097 {16, "R_PPC_GOT16_HI"}, 1098 {17, "R_PPC_GOT16_HA"}, 1099 {18, "R_PPC_PLTREL24"}, 1100 {19, "R_PPC_COPY"}, 1101 {20, "R_PPC_GLOB_DAT"}, 1102 {21, "R_PPC_JMP_SLOT"}, 1103 {22, "R_PPC_RELATIVE"}, 1104 {23, "R_PPC_LOCAL24PC"}, 1105 {24, "R_PPC_UADDR32"}, 1106 {25, "R_PPC_UADDR16"}, 1107 {26, "R_PPC_REL32"}, 1108 {27, "R_PPC_PLT32"}, 1109 {28, "R_PPC_PLTREL32"}, 1110 {29, "R_PPC_PLT16_LO"}, 1111 {30, "R_PPC_PLT16_HI"}, 1112 {31, "R_PPC_PLT16_HA"}, 1113 {32, "R_PPC_SDAREL16"}, 1114 {33, "R_PPC_SECTOFF"}, 1115 {34, "R_PPC_SECTOFF_LO"}, 1116 {35, "R_PPC_SECTOFF_HI"}, 1117 {36, "R_PPC_SECTOFF_HA"}, 1118 1119 {67, "R_PPC_TLS"}, 1120 {68, "R_PPC_DTPMOD32"}, 1121 {69, "R_PPC_TPREL16"}, 1122 {70, "R_PPC_TPREL16_LO"}, 1123 {71, "R_PPC_TPREL16_HI"}, 1124 {72, "R_PPC_TPREL16_HA"}, 1125 {73, "R_PPC_TPREL32"}, 1126 {74, "R_PPC_DTPREL16"}, 1127 {75, "R_PPC_DTPREL16_LO"}, 1128 {76, "R_PPC_DTPREL16_HI"}, 1129 {77, "R_PPC_DTPREL16_HA"}, 1130 {78, "R_PPC_DTPREL32"}, 1131 {79, "R_PPC_GOT_TLSGD16"}, 1132 {80, "R_PPC_GOT_TLSGD16_LO"}, 1133 {81, "R_PPC_GOT_TLSGD16_HI"}, 1134 {82, "R_PPC_GOT_TLSGD16_HA"}, 1135 {83, "R_PPC_GOT_TLSLD16"}, 1136 {84, "R_PPC_GOT_TLSLD16_LO"}, 1137 {85, "R_PPC_GOT_TLSLD16_HI"}, 1138 {86, "R_PPC_GOT_TLSLD16_HA"}, 1139 {87, "R_PPC_GOT_TPREL16"}, 1140 {88, "R_PPC_GOT_TPREL16_LO"}, 1141 {89, "R_PPC_GOT_TPREL16_HI"}, 1142 {90, "R_PPC_GOT_TPREL16_HA"}, 1143 1144 {101, "R_PPC_EMB_NADDR32"}, 1145 {102, "R_PPC_EMB_NADDR16"}, 1146 {103, "R_PPC_EMB_NADDR16_LO"}, 1147 {104, "R_PPC_EMB_NADDR16_HI"}, 1148 {105, "R_PPC_EMB_NADDR16_HA"}, 1149 {106, "R_PPC_EMB_SDAI16"}, 1150 {107, "R_PPC_EMB_SDA2I16"}, 1151 {108, "R_PPC_EMB_SDA2REL"}, 1152 {109, "R_PPC_EMB_SDA21"}, 1153 {110, "R_PPC_EMB_MRKREF"}, 1154 {111, "R_PPC_EMB_RELSEC16"}, 1155 {112, "R_PPC_EMB_RELST_LO"}, 1156 {113, "R_PPC_EMB_RELST_HI"}, 1157 {114, "R_PPC_EMB_RELST_HA"}, 1158 {115, "R_PPC_EMB_BIT_FLD"}, 1159 {116, "R_PPC_EMB_RELSDA"}, 1160 } 1161 1162 func (i R_PPC) String() string { return stringName(uint32(i), rppcStrings, false) } 1163 func (i R_PPC) GoString() string { return stringName(uint32(i), rppcStrings, true) } 1164 1165 // Relocation types for SPARC. 1166 type R_SPARC int 1167 1168 const ( 1169 R_SPARC_NONE R_SPARC = 0 1170 R_SPARC_8 R_SPARC = 1 1171 R_SPARC_16 R_SPARC = 2 1172 R_SPARC_32 R_SPARC = 3 1173 R_SPARC_DISP8 R_SPARC = 4 1174 R_SPARC_DISP16 R_SPARC = 5 1175 R_SPARC_DISP32 R_SPARC = 6 1176 R_SPARC_WDISP30 R_SPARC = 7 1177 R_SPARC_WDISP22 R_SPARC = 8 1178 R_SPARC_HI22 R_SPARC = 9 1179 R_SPARC_22 R_SPARC = 10 1180 R_SPARC_13 R_SPARC = 11 1181 R_SPARC_LO10 R_SPARC = 12 1182 R_SPARC_GOT10 R_SPARC = 13 1183 R_SPARC_GOT13 R_SPARC = 14 1184 R_SPARC_GOT22 R_SPARC = 15 1185 R_SPARC_PC10 R_SPARC = 16 1186 R_SPARC_PC22 R_SPARC = 17 1187 R_SPARC_WPLT30 R_SPARC = 18 1188 R_SPARC_COPY R_SPARC = 19 1189 R_SPARC_GLOB_DAT R_SPARC = 20 1190 R_SPARC_JMP_SLOT R_SPARC = 21 1191 R_SPARC_RELATIVE R_SPARC = 22 1192 R_SPARC_UA32 R_SPARC = 23 1193 R_SPARC_PLT32 R_SPARC = 24 1194 R_SPARC_HIPLT22 R_SPARC = 25 1195 R_SPARC_LOPLT10 R_SPARC = 26 1196 R_SPARC_PCPLT32 R_SPARC = 27 1197 R_SPARC_PCPLT22 R_SPARC = 28 1198 R_SPARC_PCPLT10 R_SPARC = 29 1199 R_SPARC_10 R_SPARC = 30 1200 R_SPARC_11 R_SPARC = 31 1201 R_SPARC_64 R_SPARC = 32 1202 R_SPARC_OLO10 R_SPARC = 33 1203 R_SPARC_HH22 R_SPARC = 34 1204 R_SPARC_HM10 R_SPARC = 35 1205 R_SPARC_LM22 R_SPARC = 36 1206 R_SPARC_PC_HH22 R_SPARC = 37 1207 R_SPARC_PC_HM10 R_SPARC = 38 1208 R_SPARC_PC_LM22 R_SPARC = 39 1209 R_SPARC_WDISP16 R_SPARC = 40 1210 R_SPARC_WDISP19 R_SPARC = 41 1211 R_SPARC_GLOB_JMP R_SPARC = 42 1212 R_SPARC_7 R_SPARC = 43 1213 R_SPARC_5 R_SPARC = 44 1214 R_SPARC_6 R_SPARC = 45 1215 R_SPARC_DISP64 R_SPARC = 46 1216 R_SPARC_PLT64 R_SPARC = 47 1217 R_SPARC_HIX22 R_SPARC = 48 1218 R_SPARC_LOX10 R_SPARC = 49 1219 R_SPARC_H44 R_SPARC = 50 1220 R_SPARC_M44 R_SPARC = 51 1221 R_SPARC_L44 R_SPARC = 52 1222 R_SPARC_REGISTER R_SPARC = 53 1223 R_SPARC_UA64 R_SPARC = 54 1224 R_SPARC_UA16 R_SPARC = 55 1225 ) 1226 1227 var rsparcStrings = []intName{ 1228 {0, "R_SPARC_NONE"}, 1229 {1, "R_SPARC_8"}, 1230 {2, "R_SPARC_16"}, 1231 {3, "R_SPARC_32"}, 1232 {4, "R_SPARC_DISP8"}, 1233 {5, "R_SPARC_DISP16"}, 1234 {6, "R_SPARC_DISP32"}, 1235 {7, "R_SPARC_WDISP30"}, 1236 {8, "R_SPARC_WDISP22"}, 1237 {9, "R_SPARC_HI22"}, 1238 {10, "R_SPARC_22"}, 1239 {11, "R_SPARC_13"}, 1240 {12, "R_SPARC_LO10"}, 1241 {13, "R_SPARC_GOT10"}, 1242 {14, "R_SPARC_GOT13"}, 1243 {15, "R_SPARC_GOT22"}, 1244 {16, "R_SPARC_PC10"}, 1245 {17, "R_SPARC_PC22"}, 1246 {18, "R_SPARC_WPLT30"}, 1247 {19, "R_SPARC_COPY"}, 1248 {20, "R_SPARC_GLOB_DAT"}, 1249 {21, "R_SPARC_JMP_SLOT"}, 1250 {22, "R_SPARC_RELATIVE"}, 1251 {23, "R_SPARC_UA32"}, 1252 {24, "R_SPARC_PLT32"}, 1253 {25, "R_SPARC_HIPLT22"}, 1254 {26, "R_SPARC_LOPLT10"}, 1255 {27, "R_SPARC_PCPLT32"}, 1256 {28, "R_SPARC_PCPLT22"}, 1257 {29, "R_SPARC_PCPLT10"}, 1258 {30, "R_SPARC_10"}, 1259 {31, "R_SPARC_11"}, 1260 {32, "R_SPARC_64"}, 1261 {33, "R_SPARC_OLO10"}, 1262 {34, "R_SPARC_HH22"}, 1263 {35, "R_SPARC_HM10"}, 1264 {36, "R_SPARC_LM22"}, 1265 {37, "R_SPARC_PC_HH22"}, 1266 {38, "R_SPARC_PC_HM10"}, 1267 {39, "R_SPARC_PC_LM22"}, 1268 {40, "R_SPARC_WDISP16"}, 1269 {41, "R_SPARC_WDISP19"}, 1270 {42, "R_SPARC_GLOB_JMP"}, 1271 {43, "R_SPARC_7"}, 1272 {44, "R_SPARC_5"}, 1273 {45, "R_SPARC_6"}, 1274 {46, "R_SPARC_DISP64"}, 1275 {47, "R_SPARC_PLT64"}, 1276 {48, "R_SPARC_HIX22"}, 1277 {49, "R_SPARC_LOX10"}, 1278 {50, "R_SPARC_H44"}, 1279 {51, "R_SPARC_M44"}, 1280 {52, "R_SPARC_L44"}, 1281 {53, "R_SPARC_REGISTER"}, 1282 {54, "R_SPARC_UA64"}, 1283 {55, "R_SPARC_UA16"}, 1284 } 1285 1286 func (i R_SPARC) String() string { return stringName(uint32(i), rsparcStrings, false) } 1287 func (i R_SPARC) GoString() string { return stringName(uint32(i), rsparcStrings, true) } 1288 1289 // Magic number for the elf trampoline, chosen wisely to be an immediate value. 1290 const ARM_MAGIC_TRAMP_NUMBER = 0x5c000003 1291 1292 // ELF32 File header. 1293 type Header32 struct { 1294 Ident [EI_NIDENT]byte /* File identification. */ 1295 Type uint16 /* File type. */ 1296 Machine uint16 /* Machine architecture. */ 1297 Version uint32 /* ELF format version. */ 1298 Entry uint32 /* Entry point. */ 1299 Phoff uint32 /* Program header file offset. */ 1300 Shoff uint32 /* Section header file offset. */ 1301 Flags uint32 /* Architecture-specific flags. */ 1302 Ehsize uint16 /* Size of ELF header in bytes. */ 1303 Phentsize uint16 /* Size of program header entry. */ 1304 Phnum uint16 /* Number of program header entries. */ 1305 Shentsize uint16 /* Size of section header entry. */ 1306 Shnum uint16 /* Number of section header entries. */ 1307 Shstrndx uint16 /* Section name strings section. */ 1308 } 1309 1310 // ELF32 Section header. 1311 type Section32 struct { 1312 Name uint32 /* Section name (index into the section header string table). */ 1313 Type uint32 /* Section type. */ 1314 Flags uint32 /* Section flags. */ 1315 Addr uint32 /* Address in memory image. */ 1316 Off uint32 /* Offset in file. */ 1317 Size uint32 /* Size in bytes. */ 1318 Link uint32 /* Index of a related section. */ 1319 Info uint32 /* Depends on section type. */ 1320 Addralign uint32 /* Alignment in bytes. */ 1321 Entsize uint32 /* Size of each entry in section. */ 1322 } 1323 1324 // ELF32 Program header. 1325 type Prog32 struct { 1326 Type uint32 /* Entry type. */ 1327 Off uint32 /* File offset of contents. */ 1328 Vaddr uint32 /* Virtual address in memory image. */ 1329 Paddr uint32 /* Physical address (not used). */ 1330 Filesz uint32 /* Size of contents in file. */ 1331 Memsz uint32 /* Size of contents in memory. */ 1332 Flags uint32 /* Access permission flags. */ 1333 Align uint32 /* Alignment in memory and file. */ 1334 } 1335 1336 // ELF32 Dynamic structure. The ".dynamic" section contains an array of them. 1337 type Dyn32 struct { 1338 Tag int32 /* Entry type. */ 1339 Val uint32 /* Integer/Address value. */ 1340 } 1341 1342 /* 1343 * Relocation entries. 1344 */ 1345 1346 // ELF32 Relocations that don't need an addend field. 1347 type Rel32 struct { 1348 Off uint32 /* Location to be relocated. */ 1349 Info uint32 /* Relocation type and symbol index. */ 1350 } 1351 1352 // ELF32 Relocations that need an addend field. 1353 type Rela32 struct { 1354 Off uint32 /* Location to be relocated. */ 1355 Info uint32 /* Relocation type and symbol index. */ 1356 Addend int32 /* Addend. */ 1357 } 1358 1359 func R_SYM32(info uint32) uint32 { return uint32(info >> 8) } 1360 func R_TYPE32(info uint32) uint32 { return uint32(info & 0xff) } 1361 func R_INFO32(sym, typ uint32) uint32 { return sym<<8 | typ } 1362 1363 // ELF32 Symbol. 1364 type Sym32 struct { 1365 Name uint32 1366 Value uint32 1367 Size uint32 1368 Info uint8 1369 Other uint8 1370 Shndx uint16 1371 } 1372 1373 const Sym32Size = 16 1374 1375 func ST_BIND(info uint8) SymBind { return SymBind(info >> 4) } 1376 func ST_TYPE(info uint8) SymType { return SymType(info & 0xF) } 1377 func ST_INFO(bind SymBind, typ SymType) uint8 { 1378 return uint8(bind)<<4 | uint8(typ)&0xf 1379 } 1380 func ST_VISIBILITY(other uint8) SymVis { return SymVis(other & 3) } 1381 1382 /* 1383 * ELF64 1384 */ 1385 1386 // ELF64 file header. 1387 type Header64 struct { 1388 Ident [EI_NIDENT]byte /* File identification. */ 1389 Type uint16 /* File type. */ 1390 Machine uint16 /* Machine architecture. */ 1391 Version uint32 /* ELF format version. */ 1392 Entry uint64 /* Entry point. */ 1393 Phoff uint64 /* Program header file offset. */ 1394 Shoff uint64 /* Section header file offset. */ 1395 Flags uint32 /* Architecture-specific flags. */ 1396 Ehsize uint16 /* Size of ELF header in bytes. */ 1397 Phentsize uint16 /* Size of program header entry. */ 1398 Phnum uint16 /* Number of program header entries. */ 1399 Shentsize uint16 /* Size of section header entry. */ 1400 Shnum uint16 /* Number of section header entries. */ 1401 Shstrndx uint16 /* Section name strings section. */ 1402 } 1403 1404 // ELF64 Section header. 1405 type Section64 struct { 1406 Name uint32 /* Section name (index into the section header string table). */ 1407 Type uint32 /* Section type. */ 1408 Flags uint64 /* Section flags. */ 1409 Addr uint64 /* Address in memory image. */ 1410 Off uint64 /* Offset in file. */ 1411 Size uint64 /* Size in bytes. */ 1412 Link uint32 /* Index of a related section. */ 1413 Info uint32 /* Depends on section type. */ 1414 Addralign uint64 /* Alignment in bytes. */ 1415 Entsize uint64 /* Size of each entry in section. */ 1416 } 1417 1418 // ELF64 Program header. 1419 type Prog64 struct { 1420 Type uint32 /* Entry type. */ 1421 Flags uint32 /* Access permission flags. */ 1422 Off uint64 /* File offset of contents. */ 1423 Vaddr uint64 /* Virtual address in memory image. */ 1424 Paddr uint64 /* Physical address (not used). */ 1425 Filesz uint64 /* Size of contents in file. */ 1426 Memsz uint64 /* Size of contents in memory. */ 1427 Align uint64 /* Alignment in memory and file. */ 1428 } 1429 1430 // ELF64 Dynamic structure. The ".dynamic" section contains an array of them. 1431 type Dyn64 struct { 1432 Tag int64 /* Entry type. */ 1433 Val uint64 /* Integer/address value */ 1434 } 1435 1436 /* 1437 * Relocation entries. 1438 */ 1439 1440 /* ELF64 relocations that don't need an addend field. */ 1441 type Rel64 struct { 1442 Off uint64 /* Location to be relocated. */ 1443 Info uint64 /* Relocation type and symbol index. */ 1444 } 1445 1446 /* ELF64 relocations that need an addend field. */ 1447 type Rela64 struct { 1448 Off uint64 /* Location to be relocated. */ 1449 Info uint64 /* Relocation type and symbol index. */ 1450 Addend int64 /* Addend. */ 1451 } 1452 1453 func R_SYM64(info uint64) uint32 { return uint32(info >> 32) } 1454 func R_TYPE64(info uint64) uint32 { return uint32(info) } 1455 func R_INFO(sym, typ uint32) uint64 { return uint64(sym)<<32 | uint64(typ) } 1456 1457 // ELF64 symbol table entries. 1458 type Sym64 struct { 1459 Name uint32 /* String table index of name. */ 1460 Info uint8 /* Type and binding information. */ 1461 Other uint8 /* Reserved (not used). */ 1462 Shndx uint16 /* Section index of symbol. */ 1463 Value uint64 /* Symbol value. */ 1464 Size uint64 /* Size of associated object. */ 1465 } 1466 1467 const Sym64Size = 24 1468 1469 type intName struct { 1470 i uint32 1471 s string 1472 } 1473 1474 func stringName(i uint32, names []intName, goSyntax bool) string { 1475 for _, n := range names { 1476 if n.i == i { 1477 if goSyntax { 1478 return "elf." + n.s 1479 } 1480 return n.s 1481 } 1482 } 1483 1484 // second pass - look for smaller to add with. 1485 // assume sorted already 1486 for j := len(names) - 1; j >= 0; j-- { 1487 n := names[j] 1488 if n.i < i { 1489 s := n.s 1490 if goSyntax { 1491 s = "elf." + s 1492 } 1493 return s + "+" + strconv.FormatUint(uint64(i-n.i), 10) 1494 } 1495 } 1496 1497 return strconv.FormatUint(uint64(i), 10) 1498 } 1499 1500 func flagName(i uint32, names []intName, goSyntax bool) string { 1501 s := "" 1502 for _, n := range names { 1503 if n.i&i == n.i { 1504 if len(s) > 0 { 1505 s += "+" 1506 } 1507 if goSyntax { 1508 s += "elf." 1509 } 1510 s += n.s 1511 i -= n.i 1512 } 1513 } 1514 if len(s) == 0 { 1515 return "0x" + strconv.FormatUint(uint64(i), 16) 1516 } 1517 if i != 0 { 1518 s += "+0x" + strconv.FormatUint(uint64(i), 16) 1519 } 1520 return s 1521 }