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android / device / google / cuttlefish / 5ee51f3a5
commit5ee51f3a5c5fb95c4dd46a3038c2045baaa4b7df[log] [tgz]
authorSteve Kim <kwstephenkim@google.com>Tue Feb 14 02:30:35 2023 -0800
committerSteve Kim <kwstephenkim@google.com>Wed Feb 22 19:13:37 2023 +0000
treef0bb9a9c17d9c05a3daaf4fa9dd9658cc015c5e3
parentc3be33e68d3491ede71f445c70d50080f9f7350b [diff]
Add function to detect the build id at runtime

The new function, which is basically for cvd start, reads the
kernel.log, parses the lines, and finds the build ID.

Bug: 269222021
Test: Added LOG(ERROR) for debug, and checked
Change-Id: I32ee19814071bef9ad153a0e831898960259c0de
3 files changed
tree: f0bb9a9c17d9c05a3daaf4fa9dd9658cc015c5e3
  1. apex/
  2. build/
  3. common/
  4. guest/
  5. host/
  6. recovery/
  7. shared/
  8. tests/
  9. tools/
  10. vsoc_arm64/
  11. vsoc_arm64_minidroid/
  12. vsoc_arm64_only/
  13. vsoc_arm_only/
  14. vsoc_riscv64/
  15. vsoc_riscv64_minidroid/
  16. vsoc_x86/
  17. vsoc_x86_64/
  18. vsoc_x86_64_minidroid/
  19. vsoc_x86_64_only/
  20. vsoc_x86_only/
  21. rustfmt.toml ⇨ ../../../build/soong/scripts/rustfmt.toml
  22. .clang-format
  23. Android.bp
  24. Android.mk
  25. AndroidProducts.mk
  26. CleanSpec.mk
  27. default-permissions.xml
  28. dtb.img
  29. fetcher.mk
  30. host_package.mk
  31. iwyu.imp
  32. METADATA
  33. OWNERS
  34. PREUPLOAD.cfg
  35. README.md
  36. required_images
  37. 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.

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

    sudo apt install -y git devscripts config-package-dev debhelper-compat golang curl
git clone https://github.com/google/android-cuttlefish
cd android-cuttlefish
for dir in base frontend; do
  cd $dir
  debuild -i -us -uc -b -d
  cd ..
done
sudo dpkg -i ./cuttlefish-base_*_*64.deb || sudo apt-get install -f
sudo dpkg -i ./cuttlefish-user_*_*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