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android / platform / external / pigweed / b8b01e3a
commitb8b01e3a5e21af7dbef199b0faecefa29671acc9[log] [tgz]
authorWyatt Hepler <hepler@google.com>Wed Jan 08 18:33:40 2020 -0800
committerCQ Bot Account <commit-bot@chromium.org>Thu Jan 09 22:21:01 2020 +0000
tree6772b4f1416fce6221c576a26ad27d5d94a4f144
parentc3a2d475ce7fe7ae96bc140f57e68e4e5b61969d [diff]
pw_base64: Module for Base64 encoding and decoding

Provides C and C++ functions for encoding, decoding, and checking the
validity of Base64 data.

Change-Id: I784460d802c68b01ecee5a1778626f289685a871
10 files changed
tree: 6772b4f1416fce6221c576a26ad27d5d94a4f144
  1. docs/
  2. env_setup/
  3. pw_base64/
  4. pw_bloat/
  5. pw_build/
  6. pw_cli/
  7. pw_cpu_exception/
  8. pw_cpu_exception_armv7m/
  9. pw_docgen/
  10. pw_doctor/
  11. pw_dumb_io/
  12. pw_dumb_io_baremetal_stm32f429/
  13. pw_dumb_io_stdio/
  14. pw_module/
  15. pw_preprocessor/
  16. pw_presubmit/
  17. pw_protobuf/
  18. pw_protobuf_compiler/
  19. pw_span/
  20. pw_status/
  21. pw_string/
  22. pw_target_runner/
  23. pw_toolchain/
  24. pw_unit_test/
  25. pw_varint/
  26. pw_watch/
  27. targets/
  28. .clang-format
  29. .gitignore
  30. .gn
  31. .pylintrc
  32. AUTHORS
  33. BUILD
  34. BUILD.gn
  35. BUILDCONFIG.gn
  36. CMakeLists.txt
  37. CONTRIBUTING.md
  38. gn_defaults.gni
  39. LICENSE
  40. modules.gni
  41. pw_vars_default.gni
  42. README.md
  43. WORKSPACE
README.md

Pigweed Embedded Oriented Software Libraries

Pigweed is a collection of embedded-focused libraries, which we call “modules”. These modules are designed for small-footprint MMU-less microcontrollers like the ST Micro STM32L452 or the Nordic NRF82832. The modules are designed to facilitate easy integration into existing codebases.

Pigweed is in the early stages of development.

Getting Started

$ git clone sso://pigweed.googlesource.com/pigweed/pigweed ~/pigweed
$ cd ~/pigweed
$ env_setup/cipd/cipd.py auth-login  # Once per machine.
$ . env_setup/bootstrap.sh

You can use . env_setup/env_setup.sh in place of . env_setup/bootstrap.sh. Both should work every time, but bootstrap.sh tends to remove and reinstall things at the expense of time whereas env_setup.sh tends to do basic checks to see if time can be saved by skipping expensive operations.

If you‘re using Homebrew and you get an error saying module 'http.client' has no attribute 'HTTPSConnection' then your Homebrew Python was not set up to support SSL. Ensure it’s installed with brew install openssl and then run brew uninstall python && brew install python. After that things should work.

The environment setup script will pull down the versions of tools necessary to build Pigweed and add them to your environment. You can then build with GN, CMake, or Bazel. You can also confirm you're getting the right versions of tools—they should be installed under env_setup/.

Build for the host with GN

$ which gn
~/pigweed/.cipd/pigweed.ensure/gn
$ gn gen out/host
$ ninja -C out/host

Build for the host with CMake

$ which cmake
~/pigweed/.cipd/pigweed.ensure/bin/cmake
$ cmake -B out/cmake-host -S . -G Ninja
$ ninja -C out/cmake-host

Build for the host with Bazel

$ which bazel
~/pigweed/.cipd/pigweed.ensure/bazel
$ bazel test //...

Build for the STM32F429 Discovery board

$ gn gen --args='pw_target_config = "//targets/stm32f429i-disc1/target_config.gni"' out/disco
$ ninja -C out/disco
$ pw test --root out/disco/ --runner stm32f429i_disc1_unit_test_runner

The CMake and Bazel builds do not yet support building for hardware.

To flash firmware to an STM32 Discovery development board (and run pw test) from macOS, you need to install OpenOCD. Install Homebrew using the latest instructions at https://brew.sh/, then install OpenOCD with brew install openocd.

If any of this doesn't work please file a bug.