const golang.org/x/sys/unix.SYS_GETPGID
2 uses
golang.org/x/sys/unix (current package)
zsyscall_linux.go#L903: r0, _, e1 := RawSyscall(SYS_GETPGID, uintptr(pid), 0, 0)
zsysnum_linux_amd64.go#L131: SYS_GETPGID = 121
The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)