Last year, I wrote implementations of the Linux eventfd(2) and timerfd(2) interfaces for NetBSD, with the goal of improving our Linux emulation. In order to be able to test them with ATF tests, I went ahead and made them native calls as well.
Here are the man pages describing the interfaces: https://www.netbsd.org/~thorpej/eventfd.2 https://www.netbsd.org/~thorpej/timerfd.2 Any objections to adding these? -- thorpej