Forbid use of extern "C-unwind" inside standard library
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Those libraries are build with `-C panic=unwind` and is expected to be linkable to `-C panic=abort` library. To ensure unsoundness compiler needs to prevent a `C-unwind` call to exist, as doing so may leak foreign exceptions into `-C panic=abort`.
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Seeing in particular that std already has this flag -- makes sense to me. |
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Forbid use of `extern "C-unwind"` inside standard library Those libraries are build with `-C panic=unwind` and is expected to be linkable to `-C panic=abort` library. To ensure unsoundness compiler needs to prevent a `C-unwind` call to exist, as doing so may leak foreign exceptions into `-C panic=abort`. r? `@RalfJung`
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#121343 (Add examples for some methods on slices) - rust-lang#121374 (match lowering: Split off `test_candidates` into several functions and improve comments) - rust-lang#121474 (Ignore compiletest test directive migration commits) - rust-lang#121515 (promotion: don't promote int::MIN / -1) - rust-lang#121530 (Fix incorrect doc of ScopedJoinHandle::is_finished) - rust-lang#121551 (Forbid use of `extern "C-unwind"` inside standard library) - rust-lang#121556 (Use `addr_of!`) r? `@ghost` `@rustbot` modify labels: rollup
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Feb 25, 2024
Rollup merge of rust-lang#121551 - nbdd0121:ffi_unwind, r=RalfJung Forbid use of `extern "C-unwind"` inside standard library Those libraries are build with `-C panic=unwind` and is expected to be linkable to `-C panic=abort` library. To ensure unsoundness compiler needs to prevent a `C-unwind` call to exist, as doing so may leak foreign exceptions into `-C panic=abort`. r? ``@RalfJung``
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Those libraries are build with
-C panic=unwindand is expected to be linkable to-C panic=abortlibrary. To ensure unsoundness compiler needs to prevent aC-unwindcall to exist, as doing so may leak foreign exceptions into-C panic=abort.r? @RalfJung