//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg
//sys	getexecname() (path unsafe.Pointer, err error) = libc.getexecname
//sys	utimensat(dirfd int, path string, times *[2]Timespec, flag int) (err error)

func Getexecname() (path string, err error) {