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pigweed / pigweed / quickstart / bazel / e44e996649df448904de30408a5f042186b6d0f1
commite44e996649df448904de30408a5f042186b6d0f1[log] [tgz]
authorScott James Remnant <keybuk@pigweed.infra.roller.google.com>Fri May 10 04:08:56 2024 +0000
committerCQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri May 10 04:08:56 2024 +0000
tree103c7cc4350efde1f232f52382e3d8dbde196eff
parent24fb840b24f90922a1bb853ff2701ae1ab8238f9 [diff]
[roll third_party/pigweed] pw_boot_cortex_m: Emit pw_boot_Entry without prologue

As the startup function, pw_boot_Entry must not have a stack frame,
since its jobs include setting the stack pointer and limit.

Original-Bug: b/339107121
Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/208931
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>

https://pigweed.googlesource.com/pigweed/pigweed
third_party/pigweed Rolled-Commits: d533f317b8719a8..47018e2757e4c2c
Roller-URL: https://ci.chromium.org/b/8748356581157445713
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: Ifeee339eec483624b3affa37dbdf36eb0f5b98f0
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/quickstart/bazel/+/209457
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Commit-Queue: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
1 file changed
tree: 103c7cc4350efde1f232f52382e3d8dbde196eff
  1. .github/
  2. src/
  3. targets/
  4. third_party/
  5. tools/
  6. .bazelrc
  7. .bazelversion
  8. .gitignore
  9. .gitmodules
  10. BUILD.bazel
  11. echo.bzl
  12. LICENSE
  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!