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| BITS 64 | |
| org 0x100000000 ; Where to load this into memory | |
| ;----------------------+------+-------------+----------+------------------------ | |
| ; ELF Header struct | OFFS | ELFHDR | PHDR | ASSEMBLY OUTPUT | |
| ;----------------------+------+-------------+----------+------------------------ | |
| db 0x7F, "ELF" ; 0x00 | e_ident | | 7f 45 4c 46 | |
| _start: mov al,0x3c ; 0x04 | ei_class | | b0 | |
| ; 0x05 | ei_data | | 3c | |
| xor rdi,rdi ; 0x06 | ei_version | | 48 31 ff | |
| syscall ; 0x09 | u | | 0f 05 | |
| nop ; 0x0b | n | | 90 | |
| nop ; 0x0c | u | | 90 | |
| nop ; 0x0d | s | | 90 | |
| nop ; 0x0e | e | | 90 | |
| nop ; 0x0f | d | | 90 | |
| ;----------------------+------+-------------+----------+------------------------ | |
| ; ELF Header struct ct.| OFFS | ELFHDR | PHDR | ASSEMBLY OUTPUT | |
| ;----------------------+------+-------------+----------+------------------------ | |
| dw 2 ; 0x10 | e_type | | 02 00 | |
| dw 0x3e ; 0x12 | e_machine | | 3e 00 | |
| dd 1 ; 0x14 | e_version | | 01 00 00 00 | |
| dd _start - $$ ; 0x18 | e_entry | | 04 00 00 00 | |
| ;----------------------+------+-------------+----------+------------------------ | |
| ; Program Header Begin | OFFS | ELFHDR | PHDR | ASSEMBLY OUTPUT | |
| ;----------------------+------+-------------+----------+------------------------ | |
| phdr: dd 1 ; 0x1C | ... | p_type | 01 00 00 00 | |
| dd phdr - $$ ; 0x20 | e_phoff | p_flags | 1c 00 00 00 | |
| dd 0 ; 0x24 | ... | p_offset | 00 00 00 00 | |
| dd 0 ; 0x28 | e_shoff | ... | 00 00 00 00 | |
| dq $$ ; 0x2C | ... | p_vaddr | 00 00 00 00 | |
| ; 0x30 | e_flags | ... | 01 00 00 00 | |
| dw 0x40 ; 0x34 | e_shsize | p_addr | 40 00 | |
| dw 0x38 ; 0x36 | e_phentsize | ... | 38 00 | |
| dw 1 ; 0x38 | e_phnum | ... | 01 00 | |
| dw 2 ; 0x3A | e_shentsize | ... | 02 00 | |
| dq 2 ; 0x3C | e_shnum | p_filesz | 02 00 00 00 00 00 00 00 | |
| dq 2 ; 0x44 | | p_memsz | 02 00 00 00 00 00 00 00 | |
| dq 2 ; 0x4C | | p_align | 02 00 00 00 00 00 00 00 |
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