152 lines
3.7 KiB
C
152 lines
3.7 KiB
C
|
|
#ifndef _ELF_H_
|
|
#define _ELF_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
/*
|
|
** ELF structure
|
|
**
|
|
** +-----------------+
|
|
** | ELF magic | | 4 bytes
|
|
** +------------ +
|
|
** | ELF class | | 1 byte
|
|
** +------------ +
|
|
** | ELF header |
|
|
** +-----------------+
|
|
** ~
|
|
** +-----------------+
|
|
** | program header | kernel info
|
|
** +-----------------+
|
|
** | program header | ramdisk info
|
|
** +-----------------+
|
|
** | program header | dtb info
|
|
** +-----------------+
|
|
** | program header | (possible) cmdline info
|
|
** +-----------------+
|
|
** ~
|
|
** +-----------------+
|
|
** | section header | cmdline info
|
|
** +-----------------+
|
|
** ~
|
|
** +-----------------+
|
|
** | |
|
|
** | Data |
|
|
** | |
|
|
** +-----------------+
|
|
|
|
*/
|
|
|
|
typedef uint32_t elf32_addr;
|
|
typedef uint16_t elf32_half;
|
|
typedef uint32_t elf32_off;
|
|
typedef uint32_t elf32_word;
|
|
|
|
typedef uint64_t elf64_addr;
|
|
typedef uint16_t elf64_half;
|
|
typedef uint64_t elf64_off;
|
|
typedef uint32_t elf64_word;
|
|
typedef uint64_t elf64_xword;
|
|
|
|
#define ELF_MAGIC "\x7f""ELF"
|
|
#define ELF_MAGIC_SIZE 4
|
|
|
|
#define EI_CLASS 4
|
|
#define EI_DATA 5
|
|
#define EI_VERSION 6
|
|
#define EI_OSABI 7
|
|
#define EI_PAD 8
|
|
|
|
#define ELFCLASSNONE 0
|
|
#define ELFCLASS32 1
|
|
#define ELFCLASS64 2
|
|
#define ELFCLASSNUM 3
|
|
|
|
#define ET_EXEC 2
|
|
#define EM_ARM 40
|
|
#define EI_NIDENT 16
|
|
|
|
typedef struct elf32_ehdr {
|
|
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;
|
|
|
|
typedef struct elf64_ehdr {
|
|
unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
|
|
elf64_half e_type;
|
|
elf64_half e_machine;
|
|
elf64_word e_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;
|
|
elf64_half e_ehsize;
|
|
elf64_half e_phentsize;
|
|
elf64_half e_phnum;
|
|
elf64_half e_shentsize;
|
|
elf64_half e_shnum;
|
|
elf64_half e_shstrndx;
|
|
} elf64_ehdr;
|
|
|
|
typedef struct elf32_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;
|
|
|
|
typedef struct elf64_phdr {
|
|
elf64_word p_type;
|
|
elf64_word p_flags;
|
|
elf64_off p_offset; /* Segment file offset */
|
|
elf64_addr p_vaddr; /* Segment virtual address */
|
|
elf64_addr p_paddr; /* Segment physical address */
|
|
elf64_xword p_filesz; /* Segment size in file */
|
|
elf64_xword p_memsz; /* Segment size in memory */
|
|
elf64_xword p_align; /* Segment alignment, file & memory */
|
|
} elf64_phdr;
|
|
|
|
typedef struct elf32_shdr {
|
|
elf32_word s_name;
|
|
elf32_word s_type;
|
|
elf32_word s_flags;
|
|
elf32_addr s_addr;
|
|
elf32_off s_offset;
|
|
elf32_word s_size;
|
|
elf32_word s_link;
|
|
elf32_word s_info;
|
|
elf32_word s_addralign;
|
|
elf32_word s_entsize;
|
|
} elf32_shdr;
|
|
|
|
typedef struct elf64_shdr {
|
|
elf64_word s_name; /* Section name, index in string tbl */
|
|
elf64_word s_type; /* Type of section */
|
|
elf64_xword s_flags; /* Miscellaneous section attributes */
|
|
elf64_addr s_addr; /* Section virtual addr at execution */
|
|
elf64_off s_offset; /* Section file offset */
|
|
elf64_xword s_size; /* Size of section in bytes */
|
|
elf64_word s_link; /* Index of another section */
|
|
elf64_word s_info; /* Additional section information */
|
|
elf64_xword s_addralign; /* Section alignment */
|
|
elf64_xword s_entsize; /* Entry size if section holds table */
|
|
} elf64_shdr;
|
|
|
|
#endif
|