The only requirements on the host are python, git and a compiler (preferably clang, gcc is maintained best-effort):
$ sudo apt-get update && sudo apt-get install git clang python
$ git clone https://android.googlesource.com/platform/external/perfetto.git
This project uses Android AOSP Gerrit for code reviews and uses the Google C++ style. Currently targets
You can use both
git cl upload from Chromium depot tools or Android repo to upload patches.
git cl is quite convenient as it supports code auto-formatting via
git cl format.
See https://source.android.com/source/contributing for more details about external contributions and CLA signing.
If you are a chromium developer and have depot_tools installed you can avoid the
build/ prefix below and just use gn/ninja from depot_tools.
$ build/install-build-deps to install third-party build deps (NDK etc)
$ build/gn args out/android to generate build files and enter in the editor:
target_os = "android" # Leave empty for local testing target_cpu = "arm" or "arm64" # Only when building for Android
(See the Build Configurations section below for more)
$ build/ninja -C out/android all
TODO. The plan is to autogenerate the Android.bp build files from the master GN build files (or temporarily maintain both until we can autogenerate them).
$ build/ninja -C out/default (libtracing_unittests | libtracing_benchmarks) $ out/default/libtracing_unittests --gtest_help
Either connect a device in ADB mode or use the bundled emulator.
To start the emulator:
$ build/run_android_emulator (arm | arm64) &
To run the tests (either on the emulator or physical device):
$ build/run_android_test out/default libtracing_unittests
The following GN args are supported:
target_os = "android" | "linux" | "mac":
Defaults to the current host, set “android” to build for Android.
target_cpu = "arm" | "arm64" | "x86" | "x64":
"x64" when targeting the host. 32-bit host builds are not supported.
is_debug = true | false:
Toggles Debug (default) / Release mode.
is_clang = true | false:
Use Clang (default) / GCC. It requires clang 3.5+ to be installed on the host. Clang is the default compiler on Mac (% having installed Xcode). On Linux:
sudo apt-get update && sudo apt-get install clang
cc = "gcc" / cxx = "g++":
Uses a different compiler binary (default: autodetected depending on is_clang).
is_asan = true:
Enables Address Sanitizer
is_lsan = true:
Enables Leak Sanitizer (Linux/Mac only)
is_msan = true:
Enables Memory Sanitizer (Linux only)
is_tsan = true:
Enables Thread Sanitizer (Linux/Mac only)
is_ubsan = true:
Enables Undefined Behavior Sanitizer