| # Dumping backtrace of userspace processes on microdroid |
| |
| Like a normal adb device, you can dump backtrace of native processes running on |
| a Microdroid-base VM using [`debuggerd`][debuggerd]. Use `vm_shell` tool, and |
| then run `debuggerd`. |
| |
| ```sh |
| adb -s localhost:8000 start tombstoned |
| adb -s localhost:8000 debuggerd -b {PID} |
| ``` |
| |
| **Note:** `tombstoned` is required for `debuggerd`, but microdroid doesn't run |
| `tombstoned` by default, even on debuggable VMs. As shown above, you need to |
| start `tombstoned` manually, before running `debuggerd`. |
| |
| [debuggerd]: https://source.android.com/docs/core/tests/debug#tombstone |
