const runtime._EPOLL_CLOEXEC 2 uses runtime (current package) defs_linux_amd64.go#L99: _EPOLL_CLOEXEC = 0x80000 netpoll_epoll.go#L33: epfd = epollcreate1(_EPOLL_CLOEXEC)
The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)