040000 tree 54995c6c08257ae4f0193d3cca900840026ab5db	bionic
040000 tree 1990956b9c91b3d5f918a0963a815a508a5112c1	frameworks
040000 tree 7d47c3aa01798517c91be9b2b08bdc19837730ca	hardware
040000 tree d778a58d6a0d24987663c387fbd02b2f696c8773	system