1 /*- 2 * Copyright (c) 1998 John D. Polstra. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/sys/elf_common.h,v 1.15 2004/05/05 02:38:54 marcel Exp $ 27 */ 28 29 #ifndef _SYS_ELF_COMMON_H_ 30 #define _SYS_ELF_COMMON_H_ 1 31 32 /* 33 * ELF definitions that are independent of architecture or word size. 34 */ 35 36 /* 37 * Note header. The ".note" section contains an array of notes. Each 38 * begins with this header, aligned to a word boundary. Immediately 39 * following the note header is n_namesz bytes of name, padded to the 40 * next word boundary. Then comes n_descsz bytes of descriptor, again 41 * padded to a word boundary. The values of n_namesz and n_descsz do 42 * not include the padding. 43 */ 44 45 typedef struct { 46 UINT32 n_namesz; /* Length of name. */ 47 UINT32 n_descsz; /* Length of descriptor. */ 48 UINT32 n_type; /* Type of this note. */ 49 } Elf_Note; 50 51 /* Indexes into the e_ident array. Keep synced with 52 http://www.sco.com/developer/gabi/ch4.eheader.html */ 53 #define EI_MAG0 0 /* Magic number, byte 0. */ 54 #define EI_MAG1 1 /* Magic number, byte 1. */ 55 #define EI_MAG2 2 /* Magic number, byte 2. */ 56 #define EI_MAG3 3 /* Magic number, byte 3. */ 57 #define EI_CLASS 4 /* Class of machine. */ 58 #define EI_DATA 5 /* Data format. */ 59 #define EI_VERSION 6 /* ELF format version. */ 60 #define EI_OSABI 7 /* Operating system / ABI identification */ 61 #define EI_ABIVERSION 8 /* ABI version */ 62 #define OLD_EI_BRAND 8 /* Start of architecture identification. */ 63 #define EI_PAD 9 /* Start of padding (per SVR4 ABI). */ 64 #define EI_NIDENT 16 /* Size of e_ident array. */ 65 66 /* Values for the magic number bytes. */ 67 #define ELFMAG0 0x7f 68 #define ELFMAG1 'E' 69 #define ELFMAG2 'L' 70 #define ELFMAG3 'F' 71 #define ELFMAG "\177ELF" /* magic string */ 72 #define SELFMAG 4 /* magic string size */ 73 74 /* Values for e_ident[EI_VERSION] and e_version. */ 75 #define EV_NONE 0 76 #define EV_CURRENT 1 77 78 /* Values for e_ident[EI_CLASS]. */ 79 #define ELFCLASSNONE 0 /* Unknown class. */ 80 #define ELFCLASS32 1 /* 32-bit architecture. */ 81 #define ELFCLASS64 2 /* 64-bit architecture. */ 82 83 /* Values for e_ident[EI_DATA]. */ 84 #define ELFDATANONE 0 /* Unknown data format. */ 85 #define ELFDATA2LSB 1 /* 2's complement little-endian. */ 86 #define ELFDATA2MSB 2 /* 2's complement big-endian. */ 87 88 /* Values for e_ident[EI_OSABI]. */ 89 #define ELFOSABI_SYSV 0 /* UNIX System V ABI */ 90 #define ELFOSABI_NONE ELFOSABI_SYSV /* symbol used in old spec */ 91 #define ELFOSABI_HPUX 1 /* HP-UX operating system */ 92 #define ELFOSABI_NETBSD 2 /* NetBSD */ 93 #define ELFOSABI_LINUX 3 /* GNU/Linux */ 94 #define ELFOSABI_HURD 4 /* GNU/Hurd */ 95 #define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */ 96 #define ELFOSABI_SOLARIS 6 /* Solaris */ 97 #define ELFOSABI_MONTEREY 7 /* Monterey */ 98 #define ELFOSABI_IRIX 8 /* IRIX */ 99 #define ELFOSABI_FREEBSD 9 /* FreeBSD */ 100 #define ELFOSABI_TRU64 10 /* TRU64 UNIX */ 101 #define ELFOSABI_MODESTO 11 /* Novell Modesto */ 102 #define ELFOSABI_OPENBSD 12 /* OpenBSD */ 103 #define ELFOSABI_ARM 97 /* ARM */ 104 #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ 105 106 /* e_ident */ 107 #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ 108 (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ 109 (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ 110 (ehdr).e_ident[EI_MAG3] == ELFMAG3) 111 112 /* Values for e_type. */ 113 #define ET_NONE 0 /* Unknown type. */ 114 #define ET_REL 1 /* Relocatable. */ 115 #define ET_EXEC 2 /* Executable. */ 116 #define ET_DYN 3 /* Shared object. */ 117 #define ET_CORE 4 /* Core file. */ 118 119 /* Values for e_machine. */ 120 /* 121 * Source: 122 * System V Application Binary Interface (DRAFT) 2003-12-17, Chapter 4, Section 123 * "ELF Header" 124 */ 125 #define EM_NONE 0 /* No machine */ 126 #define EM_M32 1 /* AT&T WE 32100 */ 127 #define EM_SPARC 2 /* SPARC */ 128 #define EM_386 3 /* Intel 80386 */ 129 #define EM_68K 4 /* Motorola 68000 */ 130 #define EM_88K 5 /* Motorola 88000 */ 131 /* reserved 6 Reserved for future use (was EM_486) */ 132 #define EM_860 7 /* Intel 80860 */ 133 #define EM_MIPS 8 /* MIPS I Architecture */ 134 #define EM_S370 9 /* IBM System/370 Processor */ 135 #define EM_MIPS_RS3_LE 10 /* MIPS RS3000 Little-endian */ 136 /* reserved 11-14 Reserved for future use */ 137 #define EM_PARISC 15 /* Hewlett-Packard PA-RISC */ 138 /* reserved 16 Reserved for future use */ 139 #define EM_VPP500 17 /* Fujitsu VPP500 */ 140 #define EM_SPARC32PLUS 18 /* Enhanced instruction set SPARC */ 141 #define EM_960 19 /* Intel 80960 */ 142 #define EM_PPC 20 /* PowerPC */ 143 #define EM_PPC64 21 /* 64-bit PowerPC */ 144 #define EM_S390 22 /* IBM System/390 Processor */ 145 /* reserved 23-35 Reserved for future use */ 146 #define EM_V800 36 /* NEC V800 */ 147 #define EM_FR20 37 /* Fujitsu FR20 */ 148 #define EM_RH32 38 /* TRW RH-32 */ 149 #define EM_RCE 39 /* Motorola RCE */ 150 #define EM_ARM 40 /* Advanced RISC Machines ARM */ 151 #define EM_ALPHA 41 /* Digital Alpha */ 152 #define EM_SH 42 /* Hitachi SH */ 153 #define EM_SPARCV9 43 /* SPARC Version 9 */ 154 #define EM_TRICORE 44 /* Siemens TriCore embedded processor */ 155 #define EM_ARC 45 /* Argonaut RISC Core, Argonaut Technologies 156 Inc. */ 157 #define EM_H8_300 46 /* Hitachi H8/300 */ 158 #define EM_H8_300H 47 /* Hitachi H8/300H */ 159 #define EM_H8S 48 /* Hitachi H8S */ 160 #define EM_H8_500 49 /* Hitachi H8/500 */ 161 #define EM_IA_64 50 /* Intel IA-64 processor architecture */ 162 #define EM_MIPS_X 51 /* Stanford MIPS-X */ 163 #define EM_COLDFIRE 52 /* Motorola ColdFire */ 164 #define EM_68HC12 53 /* Motorola M68HC12 */ 165 #define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator */ 166 #define EM_PCP 55 /* Siemens PCP */ 167 #define EM_NCPU 56 /* Sony nCPU embedded RISC processor */ 168 #define EM_NDR1 57 /* Denso NDR1 microprocessor */ 169 #define EM_STARCORE 58 /* Motorola Star*Core processor */ 170 #define EM_ME16 59 /* Toyota ME16 processor */ 171 #define EM_ST100 60 /* STMicroelectronics ST100 processor */ 172 #define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ embedded processor 173 family */ 174 #define EM_X86_64 62 /* AMD x86-64 architecture */ 175 #define EM_PDSP 63 /* Sony DSP Processor */ 176 #define EM_PDP10 64 /* Digital Equipment Corp. PDP-10 */ 177 #define EM_PDP11 65 /* Digital Equipment Corp. PDP-11 */ 178 #define EM_FX66 66 /* Siemens FX66 microcontroller */ 179 #define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 bit 180 microcontroller */ 181 #define EM_ST7 68 /* STMicroelectronics ST7 8-bit 182 microcontroller */ 183 #define EM_68HC16 69 /* Motorola MC68HC16 Microcontroller */ 184 #define EM_68HC11 70 /* Motorola MC68HC11 Microcontroller */ 185 #define EM_68HC08 71 /* Motorola MC68HC08 Microcontroller */ 186 #define EM_68HC05 72 /* Motorola MC68HC05 Microcontroller */ 187 #define EM_SVX 73 /* Silicon Graphics SVx */ 188 #define EM_ST19 74 /* STMicroelectronics ST19 8-bit 189 microcontroller */ 190 #define EM_VAX 75 /* Digital VAX */ 191 #define EM_CRIS 76 /* Axis Communications 32-bit embedded 192 processor */ 193 #define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded 194 processor */ 195 #define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ 196 #define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ 197 #define EM_MMIX 80 /* Donald Knuth's educational 64-bit 198 processor */ 199 #define EM_HUANY 81 /* Harvard University machine-independent object 200 files */ 201 #define EM_PRISM 82 /* SiTera Prism */ 202 #define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ 203 #define EM_FR30 84 /* Fujitsu FR30 */ 204 #define EM_D10V 85 /* Mitsubishi D10V */ 205 #define EM_D30V 86 /* Mitsubishi D30V */ 206 #define EM_V850 87 /* NEC v850 */ 207 #define EM_M32R 88 /* Mitsubishi M32R */ 208 #define EM_MN10300 89 /* Matsushita MN10300 */ 209 #define EM_MN10200 90 /* Matsushita MN10200 */ 210 #define EM_PJ 91 /* picoJava */ 211 #define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ 212 #define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ 213 #define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ 214 #define EM_VIDEOCORE 95 /* Alphamosaic VideoCore processor */ 215 #define EM_TMM_GPP 96 /* Thompson Multimedia General Purpose 216 Processor */ 217 #define EM_NS32K 97 /* National Semiconductor 32000 series */ 218 #define EM_TPC 98 /* Tenor Network TPC processor */ 219 #define EM_SNP1K 99 /* Trebia SNP 1000 processor */ 220 #define EM_ST200 100 /* STMicroelectronics (www.st.com) ST200 221 microcontroller */ 222 #define EM_IP2K 101 /* Ubicom IP2xxx microcontroller family */ 223 #define EM_MAX 102 /* MAX Processor */ 224 #define EM_CR 103 /* National Semiconductor CompactRISC 225 microprocessor */ 226 #define EM_F2MC16 104 /* Fujitsu F2MC16 */ 227 #define EM_MSP430 105 /* Texas Instruments embedded microcontroller 228 msp430 */ 229 #define EM_BLACKFIN 106 /* Analog Devices Blackfin (DSP) processor */ 230 #define EM_SE_C33 107 /* S1C33 Family of Seiko Epson processors */ 231 #define EM_SEP 108 /* Sharp embedded microprocessor */ 232 #define EM_ARCA 109 /* Arca RISC Microprocessor */ 233 #define EM_UNICORE 110 /* Microprocessor series from PKU-Unity Ltd. and 234 MPRC of Peking University */ 235 236 /* Special section indexes. */ 237 #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */ 238 #define SHN_LORESERVE 0xff00 /* First of reserved range. */ 239 #define SHN_LOPROC 0xff00 /* First processor-specific. */ 240 #define SHN_HIPROC 0xff1f /* Last processor-specific. */ 241 #define SHN_ABS 0xfff1 /* Absolute values. */ 242 #define SHN_COMMON 0xfff2 /* Common data. */ 243 #define SHN_HIRESERVE 0xffff /* Last of reserved range. */ 244 245 /* sh_type */ 246 #define SHT_NULL 0 /* inactive */ 247 #define SHT_PROGBITS 1 /* program defined information */ 248 #define SHT_SYMTAB 2 /* symbol table section */ 249 #define SHT_STRTAB 3 /* string table section */ 250 #define SHT_RELA 4 /* relocation section with addends */ 251 #define SHT_HASH 5 /* symbol hash table section */ 252 #define SHT_DYNAMIC 6 /* dynamic section */ 253 #define SHT_NOTE 7 /* note section */ 254 #define SHT_NOBITS 8 /* no space section */ 255 #define SHT_REL 9 /* relocation section - no addends */ 256 #define SHT_SHLIB 10 /* reserved - purpose unknown */ 257 #define SHT_DYNSYM 11 /* dynamic symbol table section */ 258 #define SHT_NUM 12 /* number of section types */ 259 #define SHT_LOOS 0x60000000 /* First of OS specific semantics */ 260 #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ 261 #define SHT_LOPROC 0x70000000 /* reserved range for processor */ 262 #define SHT_HIPROC 0x7fffffff /* specific section header types */ 263 #define SHT_LOUSER 0x80000000 /* reserved range for application */ 264 #define SHT_HIUSER 0xffffffff /* specific indexes */ 265 266 /* Flags for sh_flags. */ 267 #define SHF_WRITE 0x1 /* Section contains writable data. */ 268 #define SHF_ALLOC 0x2 /* Section occupies memory. */ 269 #define SHF_EXECINSTR 0x4 /* Section contains instructions. */ 270 #define SHF_TLS 0x400 /* Section contains TLS data. */ 271 #define SHF_MASKPROC 0xf0000000 /* Reserved for processor-specific. */ 272 273 /* Values for p_type. */ 274 #define PT_NULL 0 /* Unused entry. */ 275 #define PT_LOAD 1 /* Loadable segment. */ 276 #define PT_DYNAMIC 2 /* Dynamic linking information segment. */ 277 #define PT_INTERP 3 /* Pathname of interpreter. */ 278 #define PT_NOTE 4 /* Auxiliary information. */ 279 #define PT_SHLIB 5 /* Reserved (not used). */ 280 #define PT_PHDR 6 /* Location of program header itself. */ 281 #define PT_TLS 7 /* Thread local storage segment */ 282 283 #define PT_COUNT 8 /* Number of defined p_type values. */ 284 285 #define PT_LOOS 0x60000000 /* OS-specific */ 286 #define PT_HIOS 0x6fffffff /* OS-specific */ 287 #define PT_LOPROC 0x70000000 /* First processor-specific type. */ 288 #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */ 289 290 /* Values for p_flags. */ 291 #define PF_X 0x1 /* Executable. */ 292 #define PF_W 0x2 /* Writable. */ 293 #define PF_R 0x4 /* Readable. */ 294 295 /* Values for d_tag. */ 296 #define DT_NULL 0 /* Terminating entry. */ 297 #define DT_NEEDED 1 /* String table offset of a needed shared 298 library. */ 299 #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */ 300 #define DT_PLTGOT 3 /* Processor-dependent address. */ 301 #define DT_HASH 4 /* Address of symbol hash table. */ 302 #define DT_STRTAB 5 /* Address of string table. */ 303 #define DT_SYMTAB 6 /* Address of symbol table. */ 304 #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */ 305 #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */ 306 #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */ 307 #define DT_STRSZ 10 /* Size of string table. */ 308 #define DT_SYMENT 11 /* Size of each symbol table entry. */ 309 #define DT_INIT 12 /* Address of initialization function. */ 310 #define DT_FINI 13 /* Address of finalization function. */ 311 #define DT_SONAME 14 /* String table offset of shared object 312 name. */ 313 #define DT_RPATH 15 /* String table offset of library path. [sup] */ 314 #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */ 315 #define DT_REL 17 /* Address of ElfNN_Rel relocations. */ 316 #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */ 317 #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */ 318 #define DT_PLTREL 20 /* Type of relocation used for PLT. */ 319 #define DT_DEBUG 21 /* Reserved (not used). */ 320 #define DT_TEXTREL 22 /* Indicates there may be relocations in 321 non-writable segments. [sup] */ 322 #define DT_JMPREL 23 /* Address of PLT relocations. */ 323 #define DT_BIND_NOW 24 /* [sup] */ 324 #define DT_INIT_ARRAY 25 /* Address of the array of pointers to 325 initialization functions */ 326 #define DT_FINI_ARRAY 26 /* Address of the array of pointers to 327 termination functions */ 328 #define DT_INIT_ARRAYSZ 27 /* Size in bytes of the array of 329 initialization functions. */ 330 #define DT_FINI_ARRAYSZ 28 /* Size in bytes of the array of 331 terminationfunctions. */ 332 #define DT_RUNPATH 29 /* String table offset of a null-terminated 333 library search path string. */ 334 #define DT_FLAGS 30 /* Object specific flag values. */ 335 #define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING 336 and less than DT_LOOS follow the rules for 337 the interpretation of the d_un union 338 as follows: even == 'd_ptr', even == 'd_val' 339 or none */ 340 #define DT_PREINIT_ARRAY 32 /* Address of the array of pointers to 341 pre-initialization functions. */ 342 #define DT_PREINIT_ARRAYSZ 33 /* Size in bytes of the array of 343 pre-initialization functions. */ 344 345 #define DT_COUNT 33 /* Number of defined d_tag values. */ 346 347 #define DT_LOOS 0x6000000d /* First OS-specific */ 348 #define DT_HIOS 0x6fff0000 /* Last OS-specific */ 349 #define DT_LOPROC 0x70000000 /* First processor-specific type. */ 350 #define DT_HIPROC 0x7fffffff /* Last processor-specific type. */ 351 352 /* Values for DT_FLAGS */ 353 #define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may 354 make reference to the $ORIGIN substitution 355 string */ 356 #define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */ 357 #define DF_TEXTREL 0x0004 /* Indicates there may be relocations in 358 non-writable segments. */ 359 #define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should 360 process all relocations for the object 361 containing this entry before transferring 362 control to the program. */ 363 #define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or 364 executable contains code using a static 365 thread-local storage scheme. */ 366 367 /* Values for n_type. Used in core files. */ 368 #define NT_PRSTATUS 1 /* Process status. */ 369 #define NT_FPREGSET 2 /* Floating point registers. */ 370 #define NT_PRPSINFO 3 /* Process state info. */ 371 372 /* Symbol Binding - ELFNN_ST_BIND - st_info */ 373 #define STB_LOCAL 0 /* Local symbol */ 374 #define STB_GLOBAL 1 /* Global symbol */ 375 #define STB_WEAK 2 /* like global - lower precedence */ 376 #define STB_LOPROC 13 /* reserved range for processor */ 377 #define STB_HIPROC 15 /* specific symbol bindings */ 378 379 /* Symbol type - ELFNN_ST_TYPE - st_info */ 380 #define STT_NOTYPE 0 /* Unspecified type. */ 381 #define STT_OBJECT 1 /* Data object. */ 382 #define STT_FUNC 2 /* Function. */ 383 #define STT_SECTION 3 /* Section. */ 384 #define STT_FILE 4 /* Source file. */ 385 #define STT_TLS 6 /* TLS object. */ 386 #define STT_LOPROC 13 /* reserved range for processor */ 387 #define STT_HIPROC 15 /* specific symbol types */ 388 389 /* Special symbol table indexes. */ 390 #define STN_UNDEF 0 /* Undefined symbol index. */ 391 392 #endif /* !_SYS_ELF_COMMON_H_ */ 393