E582 Rollup merge of #145051 - bjorn3:prevent_linkage_symbol_name_collisio… · rust-lang/stdarch@1a4db60 · GitHub
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Rollup merge of #145051 - bjorn3:prevent_linkage_symbol_name_collision, r=petrochenkov
Prevent name collisions with internal implementation details The implementation of the linkage attribute inside extern blocks defines symbols starting with _rust_extern_with_linkage_. If someone tries to also define this symbol you will get a symbol conflict or even an ICE. By adding an unpredictable component to the symbol name, this becomes less of an issue. Spawned from the discussion at [#t-compiler > About static variables `_rust_extern_with_linkage_*`](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/About.20static.20variables.20.60_rust_extern_with_linkage_*.60) cc `@ywxt` Fixes rust-lang/rust#144940
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