--- syscall(num, arg ... )

    numǻꤵ줿ֹΥƥॳ¹Ԥޤ
    2ʹߤ򥷥ƥॳΰȤϤޤʸ
    ޤǤʤФʤޤ

    ɤοͤɤΥƥॳб뤫ϡ
    syscall(2) [manual page] 
    /usr/include/sys/syscall.h 򻲾ȤƤ

    ƥॳδ˽syscall(2) [manual page]
     -1 ֤ˤ㳰 Errno::EXXX ȯޤ
    ʳǤϡ֤ͤ򤽤Τޤ޿֤ͤޤ

