Google Git
Sign in
android / device / google / cuttlefish / a7d8cc3f2
commita7d8cc3f2194b70950a2d3f48427f6ec95b9c0e5[log] [tgz]
authorJorge E. Moreira <jemoreira@google.com>Tue Apr 26 16:07:22 2022 -0700
committerJorge E. Moreira <jemoreira@google.com>Tue Apr 26 16:07:22 2022 -0700
tree1d5cee3d15317cde577ca88ffbd54cdba0a54d7c
parentb4a6e3623f036ce5f621c3cf03fd6b0e57c79907 [diff]
Configure hal correctly when audio is disabled

When audio is disabled the HAL will use the NullSink and
GeneratedSource classes instead of the ones based on tinyalsa because
there won't be an audio device for tinyalsa to interact with.

Bug: 226979862
Test: locally
Change-Id: Ifaf854e63b1f28200e6d8b5b72cf285901a393cc
1 file changed
tree: 1d5cee3d15317cde577ca88ffbd54cdba0a54d7c
  1. apex/
  2. build/
  3. common/
  4. guest/
  5. host/
  6. recovery/
  7. shared/
  8. tests/
  9. tools/
  10. vsoc_arm64/
  11. vsoc_arm64_only/
  12. vsoc_arm_only/
  13. vsoc_x86/
  14. vsoc_x86_64/
  15. vsoc_x86_64_only/
  16. vsoc_x86_only/
  17. rustfmt.toml ⇨ ../../../build/soong/scripts/rustfmt.toml
  18. .clang-format
  19. Android.bp
  20. Android.mk
  21. AndroidProducts.mk
  22. CleanSpec.mk
  23. default-permissions.xml
  24. dtb.img
  25. fetcher.mk
  26. host_package.mk
  27. iwyu.imp
  28. METADATA
  29. multiarch-howto.md
  30. OWNERS
  31. PREUPLOAD.cfg
  32. README.md
  33. required_images
  34. TEST_MAPPING
README.md

Cuttlefish Getting Started

Try Cuttlefish

  1. Make sure virtualization with KVM is available.

    grep -c -w "vmx\|svm" /proc/cpuinfo

    This should return a non-zero value. If running on a cloud machine, this may take cloud-vendor-specific steps to enable. For Google Compute Engine specifically, see the GCE guide.

ARM specific steps:

  • When running on an ARM machine, the most direct way is to check for the existence of /dev/kvm. Note that this method can also be used to confirm support of KVM on any environment.
  • Before proceeding to the next step, please first follow the guide to adjust APT sources.

  1. Download, build, and install the host debian package:

    sudo apt install -y git devscripts config-package-dev debhelper-compat golang
git clone https://github.com/google/android-cuttlefish
cd android-cuttlefish
debuild -i -us -uc -b -d
sudo dpkg -i ../cuttlefish-common_*_*64.deb || sudo apt-get install -f
sudo usermod -aG kvm,cvdnetwork,render $USER
sudo reboot

    The reboot will trigger installing additional kernel modules and applying udev rules.

  2. Go to http://ci.android.com/

  3. Enter a branch name. Start with aosp-master if you don‘t know what you’re looking for

  4. Navigate to aosp_cf_x86_64_phone and click on userdebug for the latest build

For ARM, use branch aosp-master-throttled-copped and device target aosp_cf_arm64_only_phone-userdebug

  1. Click on Artifacts

  2. Scroll down to the OTA images. These packages look like aosp_cf_x86_64_phone-img-xxxxxx.zip -- it will always have img in the name. Download this file

  3. Scroll down to cvd-host_package.tar.gz. You should always download a host package from the same build as your images.

  4. On your local system, combine the packages:

    mkdir cf
cd cf
tar xvf /path/to/cvd-host_package.tar.gz
unzip /path/to/aosp_cf_x86_64_phone-img-xxxxxx.zip

  5. Launch cuttlefish with:

$ HOME=$PWD ./bin/launch_cvd

Debug Cuttlefish

You can use adb to debug it, just like a physical device:

$ ./bin/adb -e shell

Launch Viewer (WebRTC)

When launching with ---start_webrtc (the default), you can see a list of all available devices at https://localhost:8443 . For more information, see the WebRTC on Cuttlefish documentation.

Stop Cuttlefish

You will need to stop the virtual device within the same directory as you used to launch the device.

`$ HOME=$PWD ./bin/stop_cvd`