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package linux
import (
"fmt"
"sync"
"github.com/cilium/ebpf/internal"
"github.com/cilium/ebpf/internal/unix"
)
// KernelVersion returns the version of the currently running kernel.
var KernelVersion = sync.OnceValues(detectKernelVersion)
// detectKernelVersion returns the version of the running kernel.
func detectKernelVersion() (internal.Version, error) {
vc, err := vdsoVersion()
if err != nil {
return internal.Version{}, err
}
return internal.NewVersionFromCode(vc), nil
}
// KernelRelease returns the release string of the running kernel.
// Its format depends on the Linux distribution and corresponds to directory
// names in /lib/modules by convention. Some examples are 5.15.17-1-lts and
// 4.19.0-16-amd64.
func KernelRelease() (string, error) {
var uname unix.Utsname
if err := unix.Uname(&uname); err != nil {
return "", fmt.Errorf("uname failed: %w", err)
}
return unix.ByteSliceToString(uname.Release[:]), nil
}
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