GitHub Action: Arm GNU Toolchain
(arm-none-eabi-gcc)

GitHub Action (compatible with Linux x86_64 and aarch64, macOS x86_64 and arm64, and Windows x86_64 platforms) to download, check, set up, and cache the arm-none-eabi-gcc compiler toolchain.

Usage

Simplest way to use this action is with the default options, which uses the the latest arm-none-eabi-gcc release:

steps:
- uses: carlosperate/arm-none-eabi-gcc-action@v1
- run: arm-none-eabi-gcc --version

You can also specify a version (a list can be found in the Available releases section):

steps:
- name: Install Arm GNU Toolchain (arm-none-eabi-gcc)
  uses: carlosperate/arm-none-eabi-gcc-action@v1
  with:
    release: '13.3.Rel1' # <-- The compiler release to use

More information can be found in the Advanced Options section.

Advantages over other options

• 🚀 Up-to-date with the latest GCC releases from Arm
• 🏎 Toolchain is cached for faster runs (reduced time from 30s-2min to 5ish seconds)
• 📅 Adds latest option to be able to always run tests with the latest compiler release
• ⚙️ Inputs are optional for simpler configuration
• ↗️ Toolchain path can be exported as an environmental variable and/or step output
• ✅ Downloads are MD5 checked
• ⬇️ File downloads are more stable (no random failures)
• 🐞 Issue tracker is enabled
• 🧑‍💻 Actively maintained

Available releases

• latest <-- Always points to the latest release
• 13.3.Rel1        13.2.Rel1
• 12.3.Rel1        12.2.Rel1
• 11.3.Rel1        11.2-2022.02
• 10.3-2021.10  10.3-2021.07  10-2020-q4
• 9-2020-q2        9-2019-q4
• 8-2019-q3        8-2018-q4
• 7-2018-q2        7-2017-q4
• 6-2017-q2        6-2017-q1       6-2016-q4
• 5-2016-q3        5-2016-q2       5-2016-q1       5-2015-q4
• 4.9-2015-q3    4.9-2015-q2   4.9-2015-q1   4.9-2014-q4
• 4.8-2014-q3    4.8-2014-q2   4.8-2014-q1   4.8-2013-q4
• 4.7-2014-q2    4.7-2013-q3   4.7-2013-q2   4.7-2013-q1

Older GCC version might not have releases for all operating system architectures, specifically arm64. This table shows the first release compatible with each OS architecture.

	x86_64	arm64
Linux	All versions	From version 9-2019-q4
macOS	All versions	From version 12.2.Rel1
Windows	All versions	Not supported

Advanced options

You can use a "job matrix" to build/test your project with multiple versions of GCC:

jobs:
  build:
    strategy:
      matrix:
        gcc: ['7-2017-q4', 'latest']
    steps:
      - name: Install GNU Arm Embedded Toolchain - ${{ matrix.gcc }}
        uses: carlosperate/arm-none-eabi-gcc-action@v1
        with:
          release: ${{ matrix.gcc }}
      - run: arm-none-eabi-gcc --version

If you need to pass the GCC path to a different action or step the path output exports it:

- name: To access a step output, you need to provide an `id`
  uses: carlosperate/arm-none-eabi-gcc-action@v1
  id: arm-none-eabi-gcc-action
- name: The `path` to the toolchain executables can then be obtained as an output
  run: echo "The output path is ${{ steps.arm-none-eabi-gcc-action.outputs.path }}"

The path can also be added to an environmental variable if it's specified as an input:

- name: To create an environmental variable with the toolchain path provide a name via the `path-env-var` input
  uses: carlosperate/arm-none-eabi-gcc-action@v1
  with:
    path-env-var: ARM_NONE_EABI_GCC_PATH
- name: The path will be exported to that environmental variable name
  run: echo "The output path is $ARM_NONE_EABI_GCC_PATH"

Changelog

The changes can be found in the CHANGELOG.md file, or the GitHub Releases notes.

License & Attribution

MIT License.

This project is a fork of fiam/arm-none-eabi-gcc, copyright @fiam (thanks for the awesome work Alberto! without it this fork would have never existed). The extensive list of changes can be seen here.