[clang] [clang][Fuchsia] Have global dtors use llvm.global_dtors over atexit (PR #115788)
Eli Friedman via cfe-commits
cfe-commits at lists.llvm.org
Tue Nov 12 12:48:37 PST 2024
https://github.com/efriedma-quic requested changes to this pull request.
I'm not sure we can just unconditionally call the destructor. We need to ensure the constructor runs first. If a constructor throws an exception or calls exit(), not all constructors will run before we start cleaning up. This works out naturally with atexit... but if you use global_dtors, I think you end up calling the destructor on an uninitialized object.
https://github.com/llvm/llvm-project/pull/115788
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