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Diffstat (limited to 'include/elf-common.h')
| -rwxr-xr-x | include/elf-common.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/include/elf-common.h b/include/elf-common.h new file mode 100755 index 0000000..4544deb --- /dev/null +++ b/include/elf-common.h @@ -0,0 +1,128 @@ +/* ELF support for BFD. + Copyright (C) 1991 Free Software Foundation, Inc. + + Written by Fred Fish @ Cygnus Support, from information published + in "UNIX System V Release 4, Programmers Guide: ANSI C and + Programming Support Tools". + +This file is part of BFD, the Binary File Descriptor library. + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + + +/* This file is part of ELF support for BFD, and contains the portions + that are common to both the internal and external representations. + For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory) + and external (in-file) representations. */ + + +/* Fields in e_ident[] */ + +#define EI_MAG0 0 /* File identification byte 0 index */ +#define ELFMAG0 0x7F /* Magic number byte 0 */ + +#define EI_MAG1 1 /* File identification byte 1 index */ +#define ELFMAG1 'E' /* Magic number byte 1 */ + +#define EI_MAG2 2 /* File identification byte 2 index */ +#define ELFMAG2 'L' /* Magic number byte 2 */ + +#define EI_MAG3 3 /* File identification byte 3 index */ +#define ELFMAG3 'F' /* Magic number byte 3 */ + +#define EI_CLASS 4 /* File class */ +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ + +#define EI_DATA 5 /* Data encoding */ +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* 2's complement, little endian */ +#define ELFDATA2MSB 2 /* 2's complement, big endian */ + +#define EI_VERSION 6 /* File version */ + +#define EI_PAD 7 /* Start of padding bytes */ + + +/* Values for e_type, which identifies the object file type */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_LOPROC 0xFF00 /* Processor-specific */ +#define ET_HIPROC 0xFFFF /* Processor-specific */ + +/* Values for e_machine, which identifies the architecture */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SUN SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola m68k family */ +#define EM_88K 5 /* Motorola m88k family */ +#define EM_860 6 /* Intel 80860 */ + +/* Values for e_version */ + +#define EV_NONE 0 /* Invalid ELF version */ +#define EV_CURRENT 1 /* Current version */ + +/* Values for program header, p_type field */ + +#define PT_NULL 0 /* Program header table entry unused */ +#define PT_LOAD 1 /* Loadable program segment */ +#define PT_DYNAMIC 2 /* Dynamic linking information */ +#define PT_INTERP 3 /* Program interpreter */ +#define PT_NOTE 4 /* Auxiliary information */ +#define PT_SHLIB 5 /* Reserved, unspecified semantics */ +#define PT_PHDR 6 /* Entry for header table itself */ +#define PT_LOPROC 0x70000000 /* Processor-specific */ +#define PT_HIPROC 0x7FFFFFFF /* Processor-specific */ + +/* Program segment permissions, in program header p_flags field */ + +#define PF_X (1 << 0) /* Segment is executable */ +#define PF_W (1 << 1) /* Segment is writable */ +#define PF_R (1 << 2) /* Segment is readable */ +#define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */ + +/* Values for section header, sh_type field */ + +#define SHT_NULL 0 /* Section header table entry unused */ +#define SHT_PROGBITS 1 /* Program specific (private) data */ +#define SHT_SYMTAB 2 /* Link editing symbol table */ +#define SHT_STRTAB 3 /* A string table */ +#define SHT_RELA 4 /* Relocation entries with addends */ +#define SHT_HASH 5 /* A symbol hash table */ +#define SHT_DYNAMIC 6 /* Information for dynamic linking */ +#define SHT_NOTE 7 /* Information that marks file */ +#define SHT_NOBITS 8 /* Section occupies no space in file */ +#define SHT_REL 9 /* Relocation entries, no addends */ +#define SHT_SHLIB 10 /* Reserved, unspecified semantics */ +#define SHT_DYNSYM 11 /* Dynamic linking symbol table */ +#define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */ +#define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */ +#define SHT_LOUSER 0x80000000 /* Application-specific semantics */ +#define SHT_HIUSER 0x8FFFFFFF /* Application-specific semantics */ + +/* Values for section header, sh_flags field */ + +#define SHF_WRITE (1 << 0) /* Writable data during execution */ +#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ +#define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */ +#define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */ |