vendor: cadvisor v0.39.0

Main upgrades:
- github.com/opencontainers/runc v1.0.0-rc93
- github.com/containerd/containerd v1.4.4
- github.com/docker/docker v20.10.2
- github.com/mrunalp/fileutils v0.5.0
- github.com/opencontainers/selinux v1.8.0
- github.com/cilium/ebpf v0.2.0

vendor/github.com/cilium/ebpf/internal/syscall.go

@@ -137,3 +137,30 @@ func BPFObjGet(fileName string) (*FD, error) {
 	}
 	return NewFD(uint32(ptr)), nil
 }
+
+type bpfObjGetInfoByFDAttr struct {
+	fd      uint32
+	infoLen uint32
+	info    Pointer
+}
+
+// BPFObjGetInfoByFD wraps BPF_OBJ_GET_INFO_BY_FD.
+//
+// Available from 4.13.
+func BPFObjGetInfoByFD(fd *FD, info unsafe.Pointer, size uintptr) error {
+	value, err := fd.Value()
+	if err != nil {
+		return err
+	}
+
+	attr := bpfObjGetInfoByFDAttr{
+		fd:      value,
+		infoLen: uint32(size),
+		info:    NewPointer(info),
+	}
+	_, err = BPF(BPF_OBJ_GET_INFO_BY_FD, unsafe.Pointer(&attr), unsafe.Sizeof(attr))
+	if err != nil {
+		return fmt.Errorf("fd %v: %w", fd, err)
+	}
+	return nil
+}