Perfetto: first commit. Introduce build files
This CL sets up the directory structure, build files and
README for Perfetto. The build files are complete enough
to build a hello-world unittest, gtest, gmock and protobuf
from Linux and Mac OSX without depending on any external
tool. This will allow to build the project without a full
Android checkouot and hence being able to get test coverage
on other waterfalls (Chrome, Travis CI) and with a larger
set of compiler toolchains.
The plan is to generate Android.bp build files in the
next CLs to build the same targets also from the Android tree.
Change-Id: I7a15dcfdb24d5f857fc8c3a70757745741b92545
diff --git a/README.md b/README.md
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+# Perfetto - Open-source building blocks for the full performance lifecycle of Google client platforms
+
+Docs
+----
+See [go/perfetto-one-pager](go/perfetto-one-pager)
+
+Building from a standalone checkout
+-----------------------------------
+
+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.
+
+- Run `build/install-build-deps` to install third-party build deps (NDK etc)
+- Run `build/gn args out/android` to generate build files and enter in the editor:
+ ```
+ target_os = "android" # or "linux" for local testing
+ target_cpu = "arm" # or "arm64"
+ is_debug = true # or false for release
+ ```
+- Run `build/ninja -C out/android all`
+
+
+Building from the Android tree
+------------------------------
+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).
+Will come in next CLs.
