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authorbors <bors@rust-lang.org>2024-10-14 20:47:13 +0000
committerbors <bors@rust-lang.org>2024-10-14 20:47:13 +0000
commitb7c06b40e18ea99429b3468f67d5421aa311924a (patch)
tree3806a194b5cd2165467df468e30787ba4fe572c8 /compiler/rustc_codegen_llvm/src
parent2b020bf2ccd03d02bb52b51ac6f4ddd76275c9a1 (diff)
parenta802fd9c11f98c660b15bac6cec114066c786ff2 (diff)
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Auto merge of #3973 - RalfJung:os-unfair-lock, r=RalfJung
ensure that a macOS os_unfair_lock that is moved while being held is not implicitly unlocked

Fixes https://github.com/rust-lang/miri/issues/3859

We mark an os_unfair_lock that is moved while being held as "poisoned", which means it is not considered forever locked. That's not quite what the real implementation does, but allowing arbitrary moves-while-locked would likely expose a ton of implementation details, so hopefully this is good enough.
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