const syscall.O_CLOEXEC

12 uses

	syscall (current package)
		exec_linux.go#L569: 		_, _, err1 = RawSyscall(SYS_DUP3, uintptr(pipe), uintptr(nextfd), O_CLOEXEC)
		exec_linux.go#L581: 			_, _, err1 = RawSyscall(SYS_DUP3, uintptr(fd[i]), uintptr(nextfd), O_CLOEXEC)
		forkpipe2.go#L14: 	return Pipe2(p, O_CLOEXEC)
		zerrors_linux_amd64.go#L623: 	O_CLOEXEC                        = 0x80000

	internal/poll
		splice_linux.go#L226: 	if err := syscall.Pipe2(fds[:], syscall.O_CLOEXEC|syscall.O_NONBLOCK); err != nil {

	os
		file_unix.go#L260: 		r, s, e = open(name, flag|syscall.O_CLOEXEC, syscallMode(perm))
		file_unix.go#L290: 		r, s, e = open(name, O_RDONLY|syscall.O_CLOEXEC|syscall.O_DIRECTORY, 0)
		pipe2_unix.go#L16: 	e := syscall.Pipe2(p[0:], syscall.O_CLOEXEC)
		root_unix.go#L27: 		fd, _, err = open(name, syscall.O_CLOEXEC, 0)
		root_unix.go#L67: 			fd, err = unix.Openat(parent, name, syscall.O_NOFOLLOW|syscall.O_CLOEXEC, 0)
		root_unix.go#L85: 			fd, err = unix.Openat(parent, name, syscall.O_NOFOLLOW|syscall.O_CLOEXEC|flag, uint32(perm))
		root_unix.go#L116: 		fd, err = unix.Openat(parent, name, syscall.O_NOFOLLOW|syscall.O_CLOEXEC|syscall.O_DIRECTORY, 0)

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