roll: pigweed, pw_toolchain: pw_bluetooth_sapphire: Handle switch warning with pigweed

This switches over to using `pw_preproccesor` to annotate and disable
switch related warnings. This fixes non-clang builds

Original-Bug: b/355511476
Test: fx test //src/connectivity/bluetooth/core/bt-host

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1092485
GitOrigin-RevId: 3ec33d398c866760859f0891a04f1bff8b55f923
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/227044
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
pigweed, pw_toolchain Rolled-Commits: 17a6be9e3c21fcb..e6af48396fd8c94
Roller-URL: https://ci.chromium.org/b/8740231103396971761
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I3a829f8420e4ce364fd63a7885a7bcf270254ebc
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/228335
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
1 file changed
tree: 3a8961839039d04af06f7a809a3abcb0c7c2fddc
  1. .github/
  2. src/
  3. targets/
  4. tools/
  5. .bazelignore
  6. .bazelrc
  7. .bazelversion
  8. .gitignore
  9. BUILD.bazel
  10. echo.bzl
  11. LICENSE
  12. pigweed.json
  13. README.md
  14. requirements.in
  15. requirements_lock.txt
  16. WORKSPACE
README.md

Pigweed: minimal Bazel example

This repository contains a minimal example of a Bazel-based Pigweed project. It's an echo application for the STM32F429 Discovery Board.

Cloning

git clone --recursive https://pigweed.googlesource.com/pigweed/quickstart/bazel

If you already cloned but forgot to include --recursive, run git submodule update --init to pull all submodules.

TODO: b/300695111 - Don't require submodules for this example.

Building

We‘ll assume you already have Bazel on your system. If you don’t, the recommended way to get it is through Bazelisk.

To build the entire project (including building the application for both the host and the STM32 Discovery Board), run

bazel build //...

To run the application locally on your machine, run,

bazel run //src:echo

Flashing

To flash the firmware to a STM32F429 Discovery Board connected to your machine, run,

bazel run //tools:flash

Note that you don't need to build the firmware first: Bazel knows that the firmware images are needed to flash the board, and will build them for you. And if you edit the source of the firmware or any of its dependencies, it will get rebuilt when you flash.

Communicating

Run,

bazel run //tools:miniterm -- /dev/ttyACM0 --filter=debug

to communicate with the board. When you transmit a character, you should get the same character back!