#ifndef ELF_H_INCLUDED #define ELF_H_INCLUDED #include /* Type for a 16-bit quantity. */ typedef uint16_t Elf32_Half; typedef uint16_t Elf64_Half; /* Types for signed and unsigned 32-bit quantities. */ typedef uint32_t Elf32_Word; typedef int32_t Elf32_Sword; typedef uint32_t Elf64_Word; typedef int32_t Elf64_Sword; /* Types for signed and unsigned 64-bit quantities. */ typedef uint64_t Elf32_Xword; typedef int64_t Elf32_Sxword; typedef uint64_t Elf64_Xword; typedef int64_t Elf64_Sxword; /* Type of addresses. */ typedef uint32_t Elf32_Addr; typedef uint64_t Elf64_Addr; /* Type of file offsets. */ typedef uint32_t Elf32_Off; typedef uint64_t Elf64_Off; /* Type for section indices, which are 16-bit quantities. */ typedef uint16_t Elf32_Section; typedef uint16_t Elf64_Section; /* Type for version symbol information. */ typedef Elf32_Half Elf32_Versym; typedef Elf64_Half Elf64_Versym; /* The ELF file header. This appears at the start of every ELF file. */ typedef struct { unsigned char e_ident[16]; /* Magic number and other info */ Elf32_Half e_type; /* Object file type */ Elf32_Half e_machine; /* Architecture */ Elf32_Word e_version; /* Object file version */ Elf32_Addr e_entry; /* Entry point virtual address */ Elf32_Off e_phoff; /* Program header table (usually follows elf header directly) file offset */ Elf32_Off e_shoff; /* Section header table (at end of file) file offset */ Elf32_Word e_flags; /* Processor-specific flags */ Elf32_Half e_ehsize; /* ELF header size in bytes */ Elf32_Half e_phentsize; /* Program header table entry size */ Elf32_Half e_phnum; /* Program header table entry count */ Elf32_Half e_shentsize; /* Section header table entry size */ Elf32_Half e_shnum; /* Section header table entry count */ Elf32_Half e_shstrndx; /* Section header string table index */ } Elf32_Ehdr; typedef struct { unsigned char e_ident[16]; /* Magic number and other info */ Elf64_Half e_type; /* Object file type */ Elf64_Half e_machine; /* Architecture */ Elf64_Word e_version; /* Object file version */ Elf64_Addr e_entry; /* Entry point virtual address */ Elf64_Off e_phoff; /* Program header table file offset */ Elf64_Off e_shoff; /* Section header table file offset */ Elf64_Word e_flags; /* Processor-specific flags */ Elf64_Half e_ehsize; /* ELF header size in bytes */ Elf64_Half e_phentsize; /* Program header table entry size */ Elf64_Half e_phnum; /* Program header table entry count */ Elf64_Half e_shentsize; /* Section header table entry size */ Elf64_Half e_shnum; /* Section header table entry count */ Elf64_Half e_shstrndx; /* Section header string table index */ } Elf64_Ehdr; /* Section header entry. The number of section entries in the file are determined by the "e_shnum" field of the ELF header.*/ typedef struct { Elf32_Word sh_name; /* Section name (string tbl index) */ Elf32_Word sh_type; /* Section type */ Elf32_Word sh_flags; /* Section flags */ Elf32_Addr sh_addr; /* Section virtual addr at execution */ Elf32_Off sh_offset; /* Section file offset */ Elf32_Word sh_size; /* Section size in bytes */ Elf32_Word sh_link; /* Link to another section */ Elf32_Word sh_info; /* Additional section information */ Elf32_Word sh_addralign; /* Section alignment */ Elf32_Word sh_entsize; /* Entry size if section holds table */ } Elf32_Shdr; typedef struct { Elf64_Word sh_name; /* Section name (string tbl index) */ Elf64_Word sh_type; /* Section type */ Elf64_Xword sh_flags; /* Section flags */ Elf64_Addr sh_addr; /* Section virtual addr at execution */ Elf64_Off sh_offset; /* Section file offset */ Elf64_Xword sh_size; /* Section size in bytes */ Elf64_Word sh_link; /* Link to another section */ Elf64_Word sh_info; /* Additional section information */ Elf64_Xword sh_addralign; /* Section alignment */ Elf64_Xword sh_entsize; /* Entry size if section holds table */ } Elf64_Shdr; /* Legal values for sh_type (section type). */ #define SHT_NULL 0 /* Section header table entry unused */ #define SHT_PROGBITS 1 /* Program data */ #define SHT_SYMTAB 2 /* Symbol table */ #define SHT_STRTAB 3 /* String table */ #define SHT_RELA 4 /* Relocation entries with addends */ #define SHT_HASH 5 /* Symbol hash table */ #define SHT_DYNAMIC 6 /* Dynamic linking information. Contains Elf32_Dyn/Elf64_Dyn entries. */ #define SHT_NOTE 7 /* Notes */ #define SHT_NOBITS 8 /* Program space with no data (bss) */ #define SHT_REL 9 /* Relocation entries, no addends */ #define SHT_SHLIB 10 /* Reserved */ #define SHT_DYNSYM 11 /* Dynamic linker symbol table */ #define SHT_INIT_ARRAY 14 /* Array of constructors */ #define SHT_FINI_ARRAY 15 /* Array of destructors */ #define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ #define SHT_GROUP 17 /* Section group */ #define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ #define SHT_NUM 19 /* Number of defined types. */ #define SHT_LOOS 0x60000000 /* Start OS-specific. */ #define SHT_GNU_ATTRIBUTES 0x6ffffff5 /* Object attributes. */ #define SHT_GNU_HASH 0x6ffffff6 /* GNU-style hash table. */ #define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ #define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ #define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ #define SHT_SUNW_move 0x6ffffffa #define SHT_SUNW_COMDAT 0x6ffffffb #define SHT_SUNW_syminfo 0x6ffffffc #define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ #define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ #define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ #define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ #define SHT_HIOS 0x6fffffff /* End OS-specific type */ #define SHT_LOPROC 0x70000000 /* Start of processor-specific */ #define SHT_HIPROC 0x7fffffff /* End of processor-specific */ #define SHT_LOUSER 0x80000000 /* Start of application-specific */ #define SHT_HIUSER 0x8fffffff /* End of application-specific */ /* Dynamic section entry. */ typedef struct { Elf32_Sword d_tag; /* Dynamic entry type */ union { Elf32_Word d_val; Elf32_Addr d_ptr; } d_un; /* Integer or address value */ } Elf32_Dyn; typedef struct { Elf64_Sxword d_tag; /* Dynamic entry type */ union { Elf64_Xword d_val; Elf64_Addr d_ptr; } d_un; /* Integer or address value */ } Elf64_Dyn; /* Legal values for d_tag (dynamic entry type). */ #define DT_NULL 0 /* Marks end of dynamic section */ #define DT_NEEDED 1 /* Name of needed library */ #define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ #define DT_PLTGOT 3 /* Processor defined value */ #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 Rela relocs */ #define DT_RELASZ 8 /* Total size of Rela relocs */ #define DT_RELAENT 9 /* Size of one Rela reloc */ #define DT_STRSZ 10 /* Size of string table */ #define DT_SYMENT 11 /* Size of one symbol table entry */ #define DT_INIT 12 /* Address of init function */ #define DT_FINI 13 /* Address of termination function */ #define DT_SONAME 14 /* Name of shared object */ #define DT_RPATH 15 /* Library search path (deprecated) */ #define DT_SYMBOLIC 16 /* Start symbol search here */ #define DT_REL 17 /* Address of Rel relocs */ #define DT_RELSZ 18 /* Total size of Rel relocs */ #define DT_RELENT 19 /* Size of one Rel reloc */ #define DT_PLTREL 20 /* Type of reloc in PLT */ #define DT_DEBUG 21 /* For debugging; unspecified */ #define DT_TEXTREL 22 /* Reloc might modify .text */ #define DT_JMPREL 23 /* Address of PLT relocs */ #define DT_BIND_NOW 24 /* Process relocations of object */ #define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ #define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ #define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ #define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ #define DT_RUNPATH 29 /* Library search path */ #define DT_FLAGS 30 /* Flags for the object being loaded */ #define DT_ENCODING 32 /* Start of encoded range */ #define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ #define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ #define DT_NUM 34 /* Number used */ #define DT_LOOS 0x6000000d /* Start of OS-specific */ #define DT_HIOS 0x6ffff000 /* End of OS-specific */ #define DT_VERDEF 0x6ffffffc #define DT_VERDEFNUM 0x6ffffffd #define DT_LOPROC 0x70000000 /* Start of processor-specific */ #define DT_HIPROC 0x7fffffff /* End of processor-specific */ /* Symbol table entry. */ typedef struct { Elf32_Word st_name; /* Symbol name (string tbl index) */ Elf32_Addr st_value; /* Symbol value */ Elf32_Word st_size; /* Symbol size */ unsigned char st_info; /* Symbol type and binding */ unsigned char st_other; /* Symbol visibility */ Elf32_Section st_shndx; /* Section index */ } Elf32_Sym; typedef struct { Elf64_Word st_name; /* Symbol name (string tbl index) */ unsigned char st_info; /* Symbol type and binding */ unsigned char st_other; /* Symbol visibility */ Elf64_Section st_shndx; /* Section index */ Elf64_Addr st_value; /* Symbol value */ Elf64_Xword st_size; /* Symbol size */ } Elf64_Sym; #endif