pfo elf_enums
pf.elf_header [16]z[2]E[2]Exxxxxwwwwww ident (elf_type)type (elf_machine)machine version entry phoff shoff flags ehsize phentsize phnum shentsize shnum shstrndx
pf.elf_phdr xxxxxxxx type offset vaddr paddr filesz memsz flags align
pf.elf_shdr xxxxxxxxxx name type flags addr offset size link info addralign entsize
