1 // Elf.h 2 3 #ifndef _ELF_H 4 #define _ELF_H 5 6 // types 7 typedef uint32 Elf32_Addr; 8 typedef uint16 Elf32_Half; 9 typedef uint32 Elf32_Off; 10 typedef int32 Elf32_Sword; 11 typedef uint32 Elf32_Word; 12 13 // e_ident indices 14 #define EI_MAG0 0 15 #define EI_MAG1 1 16 #define EI_MAG2 2 17 #define EI_MAG3 3 18 #define EI_CLASS 4 19 #define EI_DATA 5 20 #define EI_VERSION 6 21 #define EI_PAD 7 22 #define EI_NIDENT 16 23 24 // object file header 25 typedef struct { 26 unsigned char e_ident[EI_NIDENT]; 27 Elf32_Half e_type; 28 Elf32_Half e_machine; 29 Elf32_Word e_version; 30 Elf32_Addr e_entry; 31 Elf32_Off e_phoff; 32 Elf32_Off e_shoff; 33 Elf32_Word e_flags; 34 Elf32_Half e_ehsize; 35 Elf32_Half e_phentsize; 36 Elf32_Half e_phnum; 37 Elf32_Half e_shentsize; 38 Elf32_Half e_shnum; 39 Elf32_Half e_shstrndx; 40 } Elf32_Ehdr; 41 42 // e_ident EI_CLASS and EI_DATA values 43 #define ELFCLASSNONE 0 44 #define ELFCLASS32 1 45 #define ELFCLASS64 2 46 #define ELFDATANONE 0 47 #define ELFDATA2LSB 1 48 #define ELFDATA2MSB 2 49 50 // program header 51 typedef struct { 52 Elf32_Word p_type; 53 Elf32_Off p_offset; 54 Elf32_Addr p_vaddr; 55 Elf32_Addr p_paddr; 56 Elf32_Word p_filesz; 57 Elf32_Word p_memsz; 58 Elf32_Word p_flags; 59 Elf32_Word p_align; 60 } Elf32_Phdr; 61 62 // p_type 63 #define PT_NULL 0 64 #define PT_LOAD 1 65 #define PT_DYNAMIC 2 66 #define PT_INTERP 3 67 #define PT_NOTE 4 68 #define PT_SHLIB 5 69 #define PT_PHDIR 6 70 #define PT_LOPROC 0x70000000 71 #define PT_HIPROC 0x7fffffff 72 73 // section header 74 typedef struct { 75 Elf32_Word sh_name; 76 Elf32_Word sh_type; 77 Elf32_Word sh_flags; 78 Elf32_Addr sh_addr; 79 Elf32_Off sh_offset; 80 Elf32_Word sh_size; 81 Elf32_Word sh_link; 82 Elf32_Word sh_info; 83 Elf32_Word sh_addralign; 84 Elf32_Word sh_entsize; 85 } Elf32_Shdr; 86 87 // sh_type values 88 #define SHT_NULL 0 89 #define SHT_PROGBITS 1 90 #define SHT_SYMTAB 2 91 #define SHT_STRTAB 3 92 #define SHT_RELA 4 93 #define SHT_HASH 5 94 #define SHT_DYNAMIC 6 95 #define SHT_NOTE 7 96 #define SHT_NOBITS 8 97 #define SHT_REL 9 98 #define SHT_SHLIB 10 99 #define SHT_DYNSYM 11 100 #define SHT_LOPROC 0x70000000 101 #define SHT_HIPROC 0x7fffffff 102 #define SHT_LOUSER 0x80000000 103 #define SHT_HIUSER 0xffffffff 104 105 #endif // _ELF_H 106 107 108