paizaでアセンブラ その7

概要

paizaでアセンブラ、やってみた。
クワインとやらをやってみる。

参考にしたページ

サンプルコード

python2です。

import subprocess
import os

def gcc():
    p_file = 'quine.S'
    test_p = """
.text
.global main
main:    
mov $1,%eax
mov $1,%edi
mov $m,%esi
mov $138,%edx
syscall
mov $60,%eax
dec %edi
syscall
m:.incbin "quine.S"
"""
    with open(p_file, 'w') as f:
        f.write(test_p)
    c_file = 'fizzbuzz.s'
    test_c = """
.text
.global main
main:    
mov $1,%eax
mov $1,%edi
mov $m,%esi
mov $138,%edx
syscall
mov $60,%eax
dec %edi
syscall
m:.incbin "quine.S"
"""
    with open(c_file, 'w') as f:
        f.write(test_c)
    os.system("gcc -no-pie %s" % c_file)
    os.system("uname -a")
    os.system("gcc --version")
    result = subprocess.Popen('./a.out', stdout = subprocess.PIPE).communicate()[0]
    for i, v in enumerate(result[ : -1].split('\n')):
        print v

if __name__ == '__main__':
  gcc()

実行結果

Linux 8e7123c5ab55 4.15.0-1025-aws #25-Ubuntu SMP Wed Oct 10 14:23:49 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


.text
.global main
main:    
mov $1,%eax
mov $1,%edi
mov $m,%esi
mov $138,%edx
syscall
mov $60,%eax
dec %edi
syscall
m:.incbin "quine.S"

成果物

以上。