sys_setdomainname  256 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_setdomainname, sys_setdomainname)
sys_setdomainname  723 include/linux/syscalls.h asmlinkage long sys_setdomainname(char __user *name, int len);
sys_setdomainname  491 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_setdomainname, sys_setdomainname)
sys_setdomainname  491 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_setdomainname, sys_setdomainname)