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@planetmarshall planetmarshall commented Dec 19, 2025

LLDB's type formatters expect the libcxx ABI namespace to start with two leading underscores.

See LLDB Discourse Thread and LLDB Sources

Fixes #180132

Note that this change requires a complete rebuild of the engine sources - see related #180128

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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing. If you believe this PR qualifies for a test exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!). The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group.

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Note

Gemini is unable to generate a review for this pull request due to the file types involved not being currently supported.

@github-actions github-actions bot added the engine flutter/engine related. See also e: labels. label Dec 19, 2025
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Nice find!

@chinmaygarde chinmaygarde force-pushed the libcxx-lldb-compatible-namespace branch from 9d97b7c to 053181b Compare January 5, 2026 19:29
@jason-simmons jason-simmons added the autosubmit Merge PR when tree becomes green via auto submit App label Jan 5, 2026
@auto-submit auto-submit bot added this pull request to the merge queue Jan 5, 2026
Merged via the queue into flutter:master with commit 937266f Jan 5, 2026
178 of 179 checks passed
@flutter-dashboard flutter-dashboard bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Jan 5, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 6, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 6, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 6, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 6, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 6, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 6, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 7, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 7, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 7, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 7, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jan 7, 2026
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LLDB type formatters do not work with in-source flutter libcxx

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