This directory contains prebuilt binaries for `trace_processor_shell`.
These are used by FlickerLib to parse and analyze perfetto traces.
They replace the binaries provided in the AndroidX library at build time.

### How to update the binaries?

Download the prebuilt binaries from the Perfetto CI/CD infrastructure:
[https://chrome-infra-packages.appspot.com/p/perfetto/trace_processor_shell/](https://chrome-infra-packages.appspot.com/p/perfetto/trace_processor_shell/)

Download the latest `.zip` archives for the required architectures, unzip them, and place the `trace_processor_shell` binary into this directory with the corresponding name:

*   `android-arm` package -> `trace_processor_shell_arm`
*   `android-arm64` package -> `trace_processor_shell_aarch64`
*   `android-x86` package -> `trace_processor_shell_x86`
*   `android-x64` package -> `trace_processor_shell_x86_64`

For example, to update the `arm` binary:
1.  Download the latest `android-arm` zip file from the link above.
2.  Unzip the downloaded file (e.g., `unzip <downloaded_zip_file>.zip`).
3.  Copy the extracted `trace_processor_shell` binary to this directory:
    `cp trace_processor_shell prebuilts/misc/common/flickerlib/trace_processor_shell/trace_processor_shell_arm`

Repeat this process for the other required architectures (`android-arm64`, `android-x86`, `android-x64`).