系统调用号的定义在 /usr/include/asm/unistd.h 文件中
//unistd.h
# ifdef __i386__
# include "unistd_32.h"
# else
# include "unistd_64.h"
# endif
系统调用号的定义在 /usr/include/asm/unistd.h 文件中
//unistd.h
# ifdef __i386__
# include "unistd_32.h"
# else
# include "unistd_64.h"
# endif