1. ELF header -> Elf32_Ehdr
   1. e_ident[EI_NIDENT]
      1. Subtopic 1
   2. e_type
   3. e_machine
   4. e_version
   5. e_entry
   6. e_phoff
      1. program header table's file offset
   7. e_shoff
      1. section header table's file offset
   8. e_flags
   9. e_ehsize
      1. ELF header's size
   10. e_phentsize
       1. one entry of program header's size
   11. e_phnum
       1. number of entries in program header table
   12. e_shentsize
       1. a section header's size, a section header is one entry in the section header table
   13. e_shnum
       1. number of entries in the section header table
   14. e_shstrndx
2. program header table -> array of Elf32_Phdr
   1. p_type
      1. tell what kind of segment this array element describes or how to interpret it
   2. p_offset
      1. offset from the beginning of the file to the first byte of the segment
   3. p_vaddr
      1. virtual address of the first byte of the segment
   4. p_paddr
      1. segment's physical address
   5. p_filesz
      1. segment size
   6. p_memsz
      1. size of memory image of segment
   7. p_flags
      1. bit mask of flags of the segment
   8. p_align
      1. Subtopic 1
3. section header table -> array of Elf32_Shdr
   1. sh_name
      1. name of the section
   2. sh_type
   3. sh_flags
   4. sh_addr
   5. sh_offset
   6. sh_size
   7. sh_link
   8. sh_info
   9. sh_addralign
   10. sh_entsize
4. string table
5. symbol table -> array of Elf32_Sym
   1. st_name
   2. st_value
   3. st_size
   4. st_info
   5. st_other
   6. st_shndx