1// Elf.h 2 3#ifndef ELF_H 4#define ELF_H 5 6// types 7typedef uint32 Elf32_Addr; 8typedef uint16 Elf32_Half; 9typedef uint32 Elf32_Off; 10typedef int32 Elf32_Sword; 11typedef 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 25typedef 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 51typedef 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 74typedef 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