References: golang.org/x/sys/unix.PerfEventAttr.Sig

golang.org/x/sys/unix.PerfEventAttr.Sig_data (field)

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L1071: 	Sig_data           uint64

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