[release/10.0] Force MetaDataGetDispenser to be linked into singlefilehost#127237
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steveisok merged 4 commits intorelease/10.0from Apr 24, 2026
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[release/10.0] Force MetaDataGetDispenser to be linked into singlefilehost#127237steveisok merged 4 commits intorelease/10.0from
steveisok merged 4 commits intorelease/10.0from
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Add linker flags on Unix/macOS to force MetaDataGetDispenser as an undefined symbol, which makes the linker pull mscoree.o from coreclr_static. On Windows, the .def file already forces this. Add a test that validates the export is present in the singlefilehost binary using NativeLibrary. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
This was referenced Apr 22, 2026
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Backport of #127036 to release/10.0
/cc @elinor-fung
Customer Impact
The
MetaDataGetDispenserexport is used by native profilers to attach to .NET processes. In .NET 10, for single-file, this export no longer existed, so profilers are not able to attach to single-file apps.The fix adds linker flags to retain needed exports when building singlefilehost.
Fixes #126634
Regression
Side effect of refactoring in c8403e6
Testing
Manually verified. Automated test added.
Risk
Low.