func golang.org/x/sys/unix.Tgkill

one use

	golang.org/x/sys/unix (current package)
		zsyscall_linux.go#L1663: func Tgkill(tgid int, tid int, sig syscall.Signal) (err error) {

The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)