#ifndef _LINUX_ELF_H #define _LINUX_ELF_H typedef unsigned long Elf32_Addr; typedef unsigned short Elf32_Half; typedef unsigned long Elf32_Off; typedef long Elf32_Sword; typedef unsigned long Elf32_Word; /* These constants are for the segment types stored in the image headers */ #define PT_NULL 0 #define PT_LOAD 1 #define PT_DYNAMIC 2 #define PT_INTERP 3 #define PT_NOTE 4 #define PT_SHLIB 5 #define PT_PHDR 6 #define PT_LOPROC 0x70000000 #define PT_HIPROC 0x7fffffff /* These constants define the different elf file types */ #define ET_NONE 0 #define ET_REL 1 #define ET_EXEC 2 #define ET_DYN 3 #define ET_CORE 4 #define ET_LOPROC 5 #define ET_HIPROC 6 /* These constants define the various ELF target machines */ #define EM_NONE 0 #define EM_M32 1 #define EM_SPARC 2 #define EM_386 3 #define EM_68K 4 #define EM_88K 5 #define EM_486 6 /* Perhaps disused */ #define EM_860 7 /* This is the info that is needed to parse the dynamic section of the file */ #define DT_NULL 0 #define DT_NEEDED 1 #define DT_PLTRELSZ 2 #define DT_PLTGOT 3 #define DT_HASH 4 #define DT_STRTAB 5 #define DT_SYMTAB 6 #define DT_RELA 7 #define DT_RELASZ 8 #define DT_RELAENT 9 #define DT_STRSZ 10 #define DT_SYMENT 11 #define DT_INIT 12 #define DT_FINI 13 #define DT_SONAME 14 #define DT_RPATH 15 #define DT_SYMBOLIC 16 #define DT_REL 17 #define DT_RELSZ 18 #define DT_RELENT 19 #define DT_PLTREL 20 #define DT_DEBUG 21 #define DT_TEXTREL 22 #define DT_JMPREL 23 #define DT_LOPROC 0x70000000 #define DT_HIPROC 0x7fffffff /* This info is needed when parsing the symbol table */ #define STB_LOCAL 0 #define STB_GLOBAL 1 #define STB_WEAK 2 #define STT_NOTYPE 0 #define STT_OBJECT 1 #define STT_FUNC 2 #define STT_SECTION 3 #define STT_FILE 4 #define ELF32_ST_BIND(x) ((x) >> 4) #define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf) typedef struct dynamic{ Elf32_Sword d_tag; union{ Elf32_Sword d_val; Elf32_Addr d_ptr; } d_un; } Elf32_Dyn; extern Elf32_Dyn _DYNAMIC []; /* The following are used with relocations */ #define ELF32_R_SYM(x) ((x) >> 8) #define ELF32_R_TYPE(x) ((x) & 0xff) #define R_386_NONE 0 #define R_386_32 1 #define R_386_PC32 2 #define R_386_GOT32 3 #define R_386_PLT32 4 #define R_386_COPY 5 #define R_386_GLOB_DAT 6 #define R_386_JMP_SLOT 7 #define R_386_RELATIVE 8 #define R_386_GOTOFF 9 #define R_386_GOTPC 10 #define R_386_NUM 11 typedef struct elf32_rel { Elf32_Addr r_offset; Elf32_Word r_info; } Elf32_Rel; typedef struct elf32_rela{ Elf32_Addr r_offset; Elf32_Word r_info; Elf32_Sword r_addend; } Elf32_Rela; typedef struct elf32_sym{ Elf32_Word st_name; Elf32_Addr st_value; Elf32_Word st_size; unsigned char st_info; unsigned char st_other; Elf32_Half st_shndx; } Elf32_Sym; #define EI_NIDENT 16 typedef struct elfhdr{ unsigned char e_ident[EI_NIDENT]; Elf32_Half e_type; Elf32_Half e_machine; Elf32_Word e_version; Elf32_Addr e_entry; /* Entry point */ Elf32_Off e_phoff; Elf32_Off e_shoff; Elf32_Word e_flags; Elf32_Half e_ehsize; Elf32_Half e_phentsize; Elf32_Half e_phnum; Elf32_Half e_shentsize; Elf32_Half e_shnum; Elf32_Half e_shstrndx; } Elf32_Ehdr; /* These constants define the permissions on sections in the program header, p_flags. */ #define PF_R 0x4 #define PF_W 0x2 #define PF_X 0x1 typedef struct elf_phdr{ Elf32_Word p_type; Elf32_Off p_offset; Elf32_Addr p_vaddr; Elf32_Addr p_paddr; Elf32_Word p_filesz; Elf32_Word p_memsz; Elf32_Word p_flags; Elf32_Word p_align; } Elf32_Phdr; /* sh_type */ #define SHT_NULL 0 #define SHT_PROGBITS 1 #define SHT_SYMTAB 2 #define SHT_STRTAB 3 #define SHT_RELA 4 #define SHT_HASH 5 #define SHT_DYNAMIC 6 #define SHT_NOTE 7 #define SHT_NOBITS 8 #define SHT_REL 9 #define SHT_SHLIB 10 #define SHT_DYNSYM 11 #define SHT_NUM 12 #define SHT_LOPROC 0x70000000 #define SHT_HIPROC 0x7fffffff #define SHT_LOUSER 0x80000000 #define SHT_HIUSER 0xffffffff /* sh_flags */ #define SHF_WRITE 0x1 #define SHF_ALLOC 0x2 #define SHF_EXECINSTR 0x4 #define SHF_MASKPROC 0xf0000000 /* special section indexes */ #define SHN_UNDEF 0 #define SHN_LORESERVE 0xff00 #define SHN_LOPROC 0xff00 #define SHN_HIPROC 0xff1f #define SHN_ABS 0xfff1 #define SHN_COMMON 0xfff2 #define SHN_HIRESERVE 0xffff typedef struct { Elf32_Word sh_name; Elf32_Word sh_type; Elf32_Word sh_flags; Elf32_Addr sh_addr; Elf32_Off sh_offset; Elf32_Word sh_size; Elf32_Word sh_link; Elf32_Word sh_info; Elf32_Word sh_addralign; Elf32_Word sh_entsize; } Elf32_Shdr; #define EI_MAG0 0 /* e_ident[] indexes */ #define EI_MAG1 1 #define EI_MAG2 2 #define EI_MAG3 3 #define EI_CLASS 4 #define EI_DATA 5 #define EI_VERSION 6 #define EI_PAD 7 #define ELFMAG0 0x7f /* EI_MAG */ #define ELFMAG1 'E' #define ELFMAG2 'L' #define ELFMAG3 'F' #define ELFMAG "\177ELF" #define SELFMAG 4 #define ELFCLASSNONE 0 /* EI_CLASS */ #define ELFCLASS32 1 #define ELFCLASS64 2 #define ELFCLASSNUM 3 #define ELFDATANONE 0 /* e_ident[EI_DATA] */ #define ELFDATA2LSB 1 #define ELFDATA2MSB 2 #define EV_NONE 0 /* e_version, EI_VERSION */ #define EV_CURRENT 1 #define EV_NUM 2 /* Notes used in ET_CORE */ #define NT_PRSTATUS 1 #define NT_PRFPREG 2 #define NT_PRPSINFO 3 #define NT_TASKSTRUCT 4 /* Note header in a PT_NOTE section */ typedef struct elf_note { Elf32_Word n_namesz; /* Name size */ Elf32_Word n_descsz; /* Content size */ Elf32_Word n_type; /* Content type */ } Elf32_Nhdr; #define ELF_START_MMAP 0x80000000 #endif /* _LINUX_ELF_H */