/*- * Copyright (c) 1998 John D. Polstra. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/sys/elf_common.h,v 1.3.2.2 1999/08/29 16:32:19 peter Exp $ */ #ifndef _SYS_ELF_COMMON_H_ #define _SYS_ELF_COMMON_H_ 1 /* * ELF definitions that are independent of architecture or word size. */ /* * Note header. The ".note" section contains an array of notes. Each * begins with this header, aligned to a word boundary. Immediately * following the note header is n_namesz bytes of name, padded to the * next word boundary. Then comes n_descsz bytes of descriptor, again * padded to a word boundary. The values of n_namesz and n_descsz do * not include the padding. */ typedef struct { u_int32_t n_namesz; /* Length of name. */ u_int32_t n_descsz; /* Length of descriptor. */ u_int32_t n_type; /* Type of this note. */ } Elf_Note; /* Indexes into the e_ident array. */ #define EI_MAG0 0 /* Magic number, byte 0. */ #define EI_MAG1 1 /* Magic number, byte 1. */ #define EI_MAG2 2 /* Magic number, byte 2. */ #define EI_MAG3 3 /* Magic number, byte 3. */ #define EI_CLASS 4 /* Class of machine. */ #define EI_DATA 5 /* Data format. */ #define EI_VERSION 6 /* ELF format version. */ #define EI_PAD 7 /* Start of padding (per SVR4 ABI). */ #define EI_BRAND 8 /* Start of architecture identification. */ #define EI_NIDENT 16 /* Size of e_ident array. */ /* Values for the magic number bytes. */ #define ELFMAG0 0x7f #define ELFMAG1 'E' #define ELFMAG2 'L' #define ELFMAG3 'F' /* Values for e_ident[EI_VERSION] and e_version. */ #define EV_NONE 0 #define EV_CURRENT 1 /* Values for e_ident[EI_CLASS]. */ #define ELFCLASSNONE 0 /* Unknown class. */ #define ELFCLASS32 1 /* 32-bit architecture. */ #define ELFCLASS64 2 /* 64-bit architecture. */ /* Values for e_ident[EI_DATA]. */ #define ELFDATANONE 0 /* Unknown data format. */ #define ELFDATA2LSB 1 /* 2's complement little-endian. */ #define ELFDATA2MSB 2 /* 2's complement big-endian. */ /* e_ident */ #define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ (ehdr).e_ident[EI_MAG3] == ELFMAG3) /* Values for e_type. */ #define ET_NONE 0 /* Unknown type. */ #define ET_REL 1 /* Relocatable. */ #define ET_EXEC 2 /* Executable. */ #define ET_DYN 3 /* Shared object. */ #define ET_CORE 4 /* Core file. */ /* Values for e_machine. */ #define EM_NONE 0 /* Unknown machine. */ #define EM_M32 1 /* AT&T WE32100. */ #define EM_SPARC 2 /* Sun SPARC. */ #define EM_386 3 /* Intel i386. */ #define EM_68K 4 /* Motorola 68000. */ #define EM_88K 5 /* Motorola 88000. */ #define EM_486 6 /* Intel i486. */ #define EM_860 7 /* Intel i860. */ #define EM_MIPS 8 /* MIPS R3000 Big-Endian only */ /* Extensions */ #define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ #define EM_SPARC64 11 /* SPARC v9 64-bit unoffical */ #define EM_PARISC 15 /* HPPA */ #define EM_PPC 20 /* PowerPC */ #define EM_ALPHA 0x9026 /* Alpha */ /* Special section indexes. */ #define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */ #define SHN_LORESERVE 0xff00 /* First of reserved range. */ #define SHN_LOPROC 0xff00 /* First processor-specific. */ #define SHN_HIPROC 0xff1f /* Last processor-specific. */ #define SHN_ABS 0xfff1 /* Absolute values. */ #define SHN_COMMON 0xfff2 /* Common data. */ #define SHN_HIRESERVE 0xffff /* Last of reserved range. */ /* sh_type */ #define SHT_NULL 0 /* inactive */ #define SHT_PROGBITS 1 /* program defined information */ #define SHT_SYMTAB 2 /* symbol table section */ #define SHT_STRTAB 3 /* string table section */ #define SHT_RELA 4 /* relocation section with addends*/ #define SHT_HASH 5 /* symbol hash table section */ #define SHT_DYNAMIC 6 /* dynamic section */ #define SHT_NOTE 7 /* note section */ #define SHT_NOBITS 8 /* no space section */ #define SHT_REL 9 /* relation section without addends */ #define SHT_SHLIB 10 /* reserved - purpose unknown */ #define SHT_DYNSYM 11 /* dynamic symbol table section */ #define SHT_LOPROC 0x70000000 /* reserved range for processor */ #define SHT_HIPROC 0x7fffffff /* specific section header types */ #define SHT_LOUSER 0x80000000 /* reserved range for application */ #define SHT_HIUSER 0xffffffff /* specific indexes */ /* Flags for sh_flags. */ #define SHF_WRITE 0x1 /* Section contains writable data. */ #define SHF_ALLOC 0x2 /* Section occupies memory. */ #define SHF_EXECINSTR 0x4 /* Section contains instructions. */ #define SHF_MASKPROC 0xf0000000 /* Reserved for processor-specific. */ /* Values for p_type. */ #define PT_NULL 0 /* Unused entry. */ #define PT_LOAD 1 /* Loadable segment. */ #define PT_DYNAMIC 2 /* Dynamic linking information segment. */ #define PT_INTERP 3 /* Pathname of interpreter. */ #define PT_NOTE 4 /* Auxiliary information. */ #define PT_SHLIB 5 /* Reserved (not used). */ #define PT_PHDR 6 /* Location of program header itself. */ #define PT_COUNT 7 /* Number of defined p_type values. */ #define PT_LOPROC 0x70000000 /* First processor-specific type. */ #define PT_HIPROC 0x7fffffff /* Last processor-specific type. */ /* Values for p_flags. */ #define PF_X 0x1 /* Executable. */ #define PF_W 0x2 /* Writable. */ #define PF_R 0x4 /* Readable. */ /* Values for d_tag. */ #define DT_NULL 0 /* Terminating entry. */ #define DT_NEEDED 1 /* String table offset of a needed shared library. */ #define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */ #define DT_PLTGOT 3 /* Processor-dependent address. */ #define DT_HASH 4 /* Address of symbol hash table. */ #define DT_STRTAB 5 /* Address of string table. */ #define DT_SYMTAB 6 /* Address of symbol table. */ #define DT_RELA 7 /* Address of ElfNN_Rela relocations. */ #define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */ #define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */ #define DT_STRSZ 10 /* Size of string table. */ #define DT_SYMENT 11 /* Size of each symbol table entry. */ #define DT_INIT 12 /* Address of initialization function. */ #define DT_FINI 13 /* Address of finalization function. */ #define DT_SONAME 14 /* String table offset of shared object name. */ #define DT_RPATH 15 /* String table offset of library path. */ #define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. */ #define DT_REL 17 /* Address of ElfNN_Rel relocations. */ #define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */ #define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */ #define DT_PLTREL 20 /* Type of relocation used for PLT. */ #define DT_DEBUG 21 /* Reserved (not used). */ #define DT_TEXTREL 22 /* Indicates there may be relocations in non-writable segments. */ #define DT_JMPREL 23 /* Address of PLT relocations. */ #define DT_COUNT 24 /* Number of defined d_tag values. */ /* Values for n_type. Used in core files. */ #define NT_PRSTATUS 1 /* Process status. */ #define NT_FPREGSET 2 /* Floating point registers. */ #define NT_PRPSINFO 3 /* Process state info. */ /* Symbol Binding - ELFNN_ST_BIND - st_info */ #define STB_LOCAL 0 /* Local symbol */ #define STB_GLOBAL 1 /* Global symbol */ #define STB_WEAK 2 /* like global - lower precedence */ #define STB_LOPROC 13 /* reserved range for processor */ #define STB_HIPROC 15 /* specific symbol bindings */ /* Symbol type - ELFNN_ST_TYPE - st_info */ #define STT_NOTYPE 0 /* Unspecified type. */ #define STT_OBJECT 1 /* Data object. */ #define STT_FUNC 2 /* Function. */ #define STT_SECTION 3 /* Section. */ #define STT_FILE 4 /* Source file. */ #define STT_LOPROC 13 /* reserved range for processor */ #define STT_HIPROC 15 /* specific symbol types */ /* Special symbol table indexes. */ #define STN_UNDEF 0 /* Undefined symbol index. */ #endif /* !_SYS_ELF_COMMON_H_ */