moby--moby/pkg/platform/architecture_unix.go

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// +build freebsd solaris
package platform
import (
"os/exec"
"strings"
)
// runtimeArchitecture get the name of the current architecture (i86pc, sun4v)
func runtimeArchitecture() (string, error) {
cmd := exec.Command("/usr/bin/uname", "-m")
machine, err := cmd.Output()
if err != nil {
return "", err
}
return strings.TrimSpace(string(machine)), nil
}