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android-x86android-automotive

How to build AOSP for Android Automotive OS?

I have downloaded AOSP codebase for x86 from https://www.android-x86.org/. It builds fine. I wonder how I setup the config or .mk, so that I can compile or build Android with Android Automotive OS flavor.

Any pointers?

Solution

  • Refer to /device/generic/car/ repository where AOSP car emulator configuration is available.

    The following target variants are available:

    aosp_car_arm-userdebug
aosp_car_arm64-userdebug
aosp_car_x86-userdebug
aosp_car_x86_64-userdebug

    I recommend to follow the official documentation for downloading and building AOSP: Set up for Android Development. You can choose car emulator as your build target.

    In short:

    1. Download some Android repository. In case of Android 10, this could be e.g. using repo:

      $ repo init -u https://android.googlesource.com/platform/manifest -b android-10.0.0_r14
$ repo sync

    2. Setup an environment and choose the car emulator target variant that matches your CPU architecture, e.g.

      $ . build/envsetup.sh
$ lunch aosp_car_x86-userdebug

    3. Build the target:

      $ make

    4. After successful build, run the emulator from command line:

      $ emulator

      Note: Usually, for development purposes you would like to run the emulator with some additional options, e.g. -selinux permissive (SELinux not enforced) or -writable-system (writable system image). Refer to Start the emulator from the command line documentation for more details.