FreeBSD: add build support

Signed-off-by: Tino Breddin <t@tolbrino.com>

drivers/virtualbox/virtualbox_freebsd.go

@@ -0,0 +1,45 @@
+package virtualbox
+
+import (
+	"bytes"
+	"io/ioutil"
+
+	"github.com/docker/machine/libmachine/log"
+)
+
+// IsVTXDisabled checks if VT-X is disabled in the BIOS. If it is, the vm will fail to start.
+// If we can't be sure it is disabled, we carry on and will check the vm logs after it's started.
+// We want to check that either vmx or svm flags are present in /proc/cpuinfo.
+func (d *Driver) IsVTXDisabled() bool {
+	cpuinfo, err := ioutil.ReadFile("/proc/cpuinfo")
+	if err != nil {
+		log.Debugf("Couldn't check that VT-X/AMD-v is enabled. Will check that the vm is properly created: %v", err)
+		return false
+	}
+	return isVTXDisabled(cpuinfo)
+}
+
+func isVTXDisabled(cpuinfo []byte) bool {
+	features := [2][]byte{
+		{'v', 'm', 'x'},
+		{'s', 'v', 'm'},
+	}
+	for _, v := range features {
+		if bytes.Contains(cpuinfo, v) {
+			return false
+		}
+	}
+	return true
+}
+
+func detectVBoxManageCmd() string {
+	return detectVBoxManageCmdInPath()
+}
+
+func getShareDriveAndName() (string, string) {
+	return "hosthome", "/home"
+}
+
+func isHyperVInstalled() bool {
+	return false
+}

libmachine/crashreport/os_freebsd.go

@@ -0,0 +1,12 @@
+package crashreport
+
+import "os/exec"
+
+func localOSVersion() string {
+	command := exec.Command("uname", "-r")
+	output, err := command.Output()
+	if err != nil {
+		return ""
+	}
+	return string(output)
+}