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Auto merge of rust-lang#127912 - joboet:tls_dtor_thread_current, r=cu…
…viper std: make `thread::current` available in all `thread_local!` destructors ... and thereby allow the panic runtime to always print the right thread name. This works by modifying the TLS destructor system to schedule a runtime cleanup function after all other TLS destructors registered by `std` have run. Unfortunately, this doesn't affect foreign TLS destructors, `thread::current` will still panic there. Additionally, the thread ID returned by `current_id` will now always be available, even inside the global allocator, and will not change during the lifetime of one thread (this was previously the case with key-based TLS). The mechanisms I added for this (`local_pointer` and `thread_cleanup`) will also allow finally fixing rust-lang#111272 by moving the signal stack to a similar runtime-cleanup TLS variable.
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Original file line number | Diff line number | Diff line change |
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@@ -212,4 +212,6 @@ unsafe fn run_dtors() { | |
unsafe { cur = (*cur).next }; | ||
} | ||
} | ||
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crate::rt::thread_cleanup(); | ||
} |
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