The quick answer is to use the GitHub Discussions.

Check the documentation

The original GNU GCC documentation is available online.

Check the FAQ

Check the FAQ for similar problems.

Check the GitHub Discussions

Check the GitHub Discussions for similar problems.

Check the GitHub Issues

Check the GitHub Issues tracker for similar problems.

Ask questions in GitHub Discussions

If you still could not find a solution, if you have interesting use cases, if you have custom configurations, and generally if you have any experience that you want to share with others, use the GitHub Discussions, and enter a New discussion in the Q&A category.

Register a new support ticket only if necessary

If you are convinced that you identified a bug (if you have doubts, use the GitHub Discussions), or you have a pertinent suggestion how to enhance the xPack GNU Arm Embedded GCC distribution, register a New Issue in the GitHub Issues tracker.

Use of private e-mail

Sending private messages will be automatically replied with a link to this page. The reason for this rude behaviour is simply an attempt to use the time more efficiently; since discussions are archived, other people having similar problems might benefit from the answers.