| 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 ___k_kLdrFmts_elf_common_h___
|
|---|
| 30 | #define ___k_kLdrFmts_elf_common_h___
|
|---|
| 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 | KU32 n_namesz; /* Length of name. */
|
|---|
| 47 | KU32 n_descsz; /* Length of descriptor. */
|
|---|
| 48 | KU32 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 | #define EM_NONE 0 /* Unknown machine. */
|
|---|
| 121 | #define EM_M32 1 /* AT&T WE32100. */
|
|---|
| 122 | #define EM_SPARC 2 /* Sun SPARC. */
|
|---|
| 123 | #define EM_386 3 /* Intel i386. */
|
|---|
| 124 | #define EM_68K 4 /* Motorola 68000. */
|
|---|
| 125 | #define EM_88K 5 /* Motorola 88000. */
|
|---|
| 126 | #define EM_486 6 /* Intel i486. */
|
|---|
| 127 | #define EM_860 7 /* Intel i860. */
|
|---|
| 128 | #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */
|
|---|
| 129 |
|
|---|
| 130 | /* Extensions. This list is not complete. */
|
|---|
| 131 | #define EM_S370 9 /* IBM System/370 */
|
|---|
| 132 | #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ /* Depreciated */
|
|---|
| 133 | #define EM_PARISC 15 /* HPPA */
|
|---|
| 134 | #define EM_SPARC32PLUS 18 /* SPARC v8plus */
|
|---|
| 135 | #define EM_PPC 20 /* PowerPC 32-bit */
|
|---|
| 136 | #define EM_PPC64 21 /* PowerPC 64-bit */
|
|---|
| 137 | #define EM_ARM 40 /* ARM */
|
|---|
| 138 | #define EM_SPARCV9 43 /* SPARC v9 64-bit */
|
|---|
| 139 | #define EM_IA_64 50 /* Intel IA-64 Processor */
|
|---|
| 140 | #define EM_X86_64 62 /* Advanced Micro Devices x86-64 */
|
|---|
| 141 | #define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI */
|
|---|
| 142 |
|
|---|
| 143 | /* Special section indexes. */
|
|---|
| 144 | #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */
|
|---|
| 145 | #define SHN_LORESERVE 0xff00 /* First of reserved range. */
|
|---|
| 146 | #define SHN_LOPROC 0xff00 /* First processor-specific. */
|
|---|
| 147 | #define SHN_HIPROC 0xff1f /* Last processor-specific. */
|
|---|
| 148 | #define SHN_ABS 0xfff1 /* Absolute values. */
|
|---|
| 149 | #define SHN_COMMON 0xfff2 /* Common data. */
|
|---|
| 150 | #define SHN_HIRESERVE 0xffff /* Last of reserved range. */
|
|---|
| 151 |
|
|---|
| 152 | /* sh_type */
|
|---|
| 153 | #define SHT_NULL 0 /* inactive */
|
|---|
| 154 | #define SHT_PROGBITS 1 /* program defined information */
|
|---|
| 155 | #define SHT_SYMTAB 2 /* symbol table section */
|
|---|
| 156 | #define SHT_STRTAB 3 /* string table section */
|
|---|
| 157 | #define SHT_RELA 4 /* relocation section with addends */
|
|---|
| 158 | #define SHT_HASH 5 /* symbol hash table section */
|
|---|
| 159 | #define SHT_DYNAMIC 6 /* dynamic section */
|
|---|
| 160 | #define SHT_NOTE 7 /* note section */
|
|---|
| 161 | #define SHT_NOBITS 8 /* no space section */
|
|---|
| 162 | #define SHT_REL 9 /* relocation section - no addends */
|
|---|
| 163 | #define SHT_SHLIB 10 /* reserved - purpose unknown */
|
|---|
| 164 | #define SHT_DYNSYM 11 /* dynamic symbol table section */
|
|---|
| 165 | #define SHT_NUM 12 /* number of section types */
|
|---|
| 166 | #define SHT_LOOS 0x60000000 /* First of OS specific semantics */
|
|---|
| 167 | #define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */
|
|---|
| 168 | #define SHT_LOPROC 0x70000000 /* reserved range for processor */
|
|---|
| 169 | #define SHT_HIPROC 0x7fffffff /* specific section header types */
|
|---|
| 170 | #define SHT_LOUSER 0x80000000 /* reserved range for application */
|
|---|
| 171 | #define SHT_HIUSER 0xffffffff /* specific indexes */
|
|---|
| 172 |
|
|---|
| 173 | /* Flags for sh_flags. */
|
|---|
| 174 | #define SHF_WRITE 0x1 /* Section contains writable data. */
|
|---|
| 175 | #define SHF_ALLOC 0x2 /* Section occupies memory. */
|
|---|
| 176 | #define SHF_EXECINSTR 0x4 /* Section contains instructions. */
|
|---|
| 177 | #define SHF_TLS 0x400 /* Section contains TLS data. */
|
|---|
| 178 | #define SHF_MASKPROC 0xf0000000 /* Reserved for processor-specific. */
|
|---|
| 179 |
|
|---|
| 180 | /* Values for p_type. */
|
|---|
| 181 | #define PT_NULL 0 /* Unused entry. */
|
|---|
| 182 | #define PT_LOAD 1 /* Loadable segment. */
|
|---|
| 183 | #define PT_DYNAMIC 2 /* Dynamic linking information segment. */
|
|---|
| 184 | #define PT_INTERP 3 /* Pathname of interpreter. */
|
|---|
| 185 | #define PT_NOTE 4 /* Auxiliary information. */
|
|---|
| 186 | #define PT_SHLIB 5 /* Reserved (not used). */
|
|---|
| 187 | #define PT_PHDR 6 /* Location of program header itself. */
|
|---|
| 188 | #define PT_TLS 7 /* Thread local storage segment */
|
|---|
| 189 |
|
|---|
| 190 | #define PT_COUNT 8 /* Number of defined p_type values. */
|
|---|
| 191 |
|
|---|
| 192 | #define PT_LOOS 0x60000000 /* OS-specific */
|
|---|
| 193 | #define PT_HIOS 0x6fffffff /* OS-specific */
|
|---|
| 194 | #define PT_LOPROC 0x70000000 /* First processor-specific type. */
|
|---|
| 195 | #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */
|
|---|
| 196 |
|
|---|
| 197 | /* Values for p_flags. */
|
|---|
| 198 | #define PF_X 0x1 /* Executable. */
|
|---|
| 199 | #define PF_W 0x2 /* Writable. */
|
|---|
| 200 | #define PF_R 0x4 /* Readable. */
|
|---|
| 201 |
|
|---|
| 202 | /* Values for d_tag. */
|
|---|
| 203 | #define DT_NULL 0 /* Terminating entry. */
|
|---|
| 204 | #define DT_NEEDED 1 /* String table offset of a needed shared
|
|---|
| 205 | library. */
|
|---|
| 206 | #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */
|
|---|
| 207 | #define DT_PLTGOT 3 /* Processor-dependent address. */
|
|---|
| 208 | #define DT_HASH 4 /* Address of symbol hash table. */
|
|---|
| 209 | #define DT_STRTAB 5 /* Address of string table. */
|
|---|
| 210 | #define DT_SYMTAB 6 /* Address of symbol table. */
|
|---|
| 211 | #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */
|
|---|
| 212 | #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */
|
|---|
| 213 | #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */
|
|---|
| 214 | #define DT_STRSZ 10 /* Size of string table. */
|
|---|
| 215 | #define DT_SYMENT 11 /* Size of each symbol table entry. */
|
|---|
| 216 | #define DT_INIT 12 /* Address of initialization function. */
|
|---|
| 217 | #define DT_FINI 13 /* Address of finalization function. */
|
|---|
| 218 | #define DT_SONAME 14 /* String table offset of shared object
|
|---|
| 219 | name. */
|
|---|
| 220 | #define DT_RPATH 15 /* String table offset of library path. [sup] */
|
|---|
| 221 | #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */
|
|---|
| 222 | #define DT_REL 17 /* Address of ElfNN_Rel relocations. */
|
|---|
| 223 | #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */
|
|---|
| 224 | #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */
|
|---|
| 225 | #define DT_PLTREL 20 /* Type of relocation used for PLT. */
|
|---|
| 226 | #define DT_DEBUG 21 /* Reserved (not used). */
|
|---|
| 227 | #define DT_TEXTREL 22 /* Indicates there may be relocations in
|
|---|
| 228 | non-writable segments. [sup] */
|
|---|
| 229 | #define DT_JMPREL 23 /* Address of PLT relocations. */
|
|---|
| 230 | #define DT_BIND_NOW 24 /* [sup] */
|
|---|
| 231 | #define DT_INIT_ARRAY 25 /* Address of the array of pointers to
|
|---|
| 232 | initialization functions */
|
|---|
| 233 | #define DT_FINI_ARRAY 26 /* Address of the array of pointers to
|
|---|
| 234 | termination functions */
|
|---|
| 235 | #define DT_INIT_ARRAYSZ 27 /* Size in bytes of the array of
|
|---|
| 236 | initialization functions. */
|
|---|
| 237 | #define DT_FINI_ARRAYSZ 28 /* Size in bytes of the array of
|
|---|
| 238 | terminationfunctions. */
|
|---|
| 239 | #define DT_RUNPATH 29 /* String table offset of a null-terminated
|
|---|
| 240 | library search path string. */
|
|---|
| 241 | #define DT_FLAGS 30 /* Object specific flag values. */
|
|---|
| 242 | #define DT_ENCODING 32 /* Values greater than or equal to DT_ENCODING
|
|---|
| 243 | and less than DT_LOOS follow the rules for
|
|---|
| 244 | the interpretation of the d_un union
|
|---|
| 245 | as follows: even == 'd_ptr', even == 'd_val'
|
|---|
| 246 | or none */
|
|---|
| 247 | #define DT_PREINIT_ARRAY 32 /* Address of the array of pointers to
|
|---|
| 248 | pre-initialization functions. */
|
|---|
| 249 | #define DT_PREINIT_ARRAYSZ 33 /* Size in bytes of the array of
|
|---|
| 250 | pre-initialization functions. */
|
|---|
| 251 |
|
|---|
| 252 | #define DT_COUNT 33 /* Number of defined d_tag values. */
|
|---|
| 253 |
|
|---|
| 254 | #define DT_LOOS 0x6000000d /* First OS-specific */
|
|---|
| 255 | #define DT_HIOS 0x6fff0000 /* Last OS-specific */
|
|---|
| 256 | #define DT_LOPROC 0x70000000 /* First processor-specific type. */
|
|---|
| 257 | #define DT_HIPROC 0x7fffffff /* Last processor-specific type. */
|
|---|
| 258 |
|
|---|
| 259 | /* Values for DT_FLAGS */
|
|---|
| 260 | #define DF_ORIGIN 0x0001 /* Indicates that the object being loaded may
|
|---|
| 261 | make reference to the $ORIGIN substitution
|
|---|
| 262 | string */
|
|---|
| 263 | #define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */
|
|---|
| 264 | #define DF_TEXTREL 0x0004 /* Indicates there may be relocations in
|
|---|
| 265 | non-writable segments. */
|
|---|
| 266 | #define DF_BIND_NOW 0x0008 /* Indicates that the dynamic linker should
|
|---|
| 267 | process all relocations for the object
|
|---|
| 268 | containing this entry before transferring
|
|---|
| 269 | control to the program. */
|
|---|
| 270 | #define DF_STATIC_TLS 0x0010 /* Indicates that the shared object or
|
|---|
| 271 | executable contains code using a static
|
|---|
| 272 | thread-local storage scheme. */
|
|---|
| 273 |
|
|---|
| 274 | /* Values for n_type. Used in core files. */
|
|---|
| 275 | #define NT_PRSTATUS 1 /* Process status. */
|
|---|
| 276 | #define NT_FPREGSET 2 /* Floating point registers. */
|
|---|
| 277 | #define NT_PRPSINFO 3 /* Process state info. */
|
|---|
| 278 |
|
|---|
| 279 | /* Symbol Binding - ELFNN_ST_BIND - st_info */
|
|---|
| 280 | #define STB_LOCAL 0 /* Local symbol */
|
|---|
| 281 | #define STB_GLOBAL 1 /* Global symbol */
|
|---|
| 282 | #define STB_WEAK 2 /* like global - lower precedence */
|
|---|
| 283 | #define STB_LOPROC 13 /* reserved range for processor */
|
|---|
| 284 | #define STB_HIPROC 15 /* specific symbol bindings */
|
|---|
| 285 |
|
|---|
| 286 | /* Symbol type - ELFNN_ST_TYPE - st_info */
|
|---|
| 287 | #define STT_NOTYPE 0 /* Unspecified type. */
|
|---|
| 288 | #define STT_OBJECT 1 /* Data object. */
|
|---|
| 289 | #define STT_FUNC 2 /* Function. */
|
|---|
| 290 | #define STT_SECTION 3 /* Section. */
|
|---|
| 291 | #define STT_FILE 4 /* Source file. */
|
|---|
| 292 | #define STT_TLS 6 /* TLS object. */
|
|---|
| 293 | #define STT_LOPROC 13 /* reserved range for processor */
|
|---|
| 294 | #define STT_HIPROC 15 /* specific symbol types */
|
|---|
| 295 |
|
|---|
| 296 | /* Special symbol table indexes. */
|
|---|
| 297 | #define STN_UNDEF 0 /* Undefined symbol index. */
|
|---|
| 298 |
|
|---|
| 299 | #endif
|
|---|
| 300 |
|
|---|
