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android / device / google / cuttlefish / 9577176310df2a97c5b812c4012cc4d3ee6af7f0
commit9577176310df2a97c5b812c4012cc4d3ee6af7f0[log] [tgz]
authorDavid Duarte <licorne@google.com>Mon Nov 28 19:07:43 2022 +0000
committerThomas Girardier <girardier@google.com>Tue Dec 13 02:31:11 2022 +0000
tree5f3be90150e8376640e27aade2f03e39b1be1bbc
parent9cc9ce67245a38bdacae78a0defe967ce4246495 [diff]
modem_simulator: Reuse active call indexes

Android Telephony stack have a hard limit on number of
active calls.

https://cs.android.com/android/platform/superproject/+/master:frameworks/opt/telephony/src/java/com/android/internal/telephony/GsmCdmaCallTracker.java;l=69;drc=ba17c7243d0e297efbc6fb5385d6d5aa81db9152

This limit makes that `handlePollCalls` only look for
active calls with an index <= `LIMIT (19) + 1`.

As modem_simulator was always increasing active calls indexes
this means that after 20 calls, Android will ignore new calls.

To fix that we instead reuse indexes of calls that where hang up.

Bug: 245578454
Ignore-AOSP-First: cherry-pick from AOSP
Test: atest pts-bot:HFP
Change-Id: Ib8356db812f0e150d0b175cd0085fbd4a4dbd73b
Merged-In: Ib8356db812f0e150d0b175cd0085fbd4a4dbd73b
2 files changed
tree: 5f3be90150e8376640e27aade2f03e39b1be1bbc
  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`