Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
c9facc8102
This PR fixes an issue that may sporadically trigger ASAN to got into a deadlock when running a subprocess through the `IO.Process.spawn` framework. The general issue here is that we run `fork()` and then perform an allocation in the child before going to `execvp` (for allocating the arguments to `execvp`). As it turns out, doing this can cause a race condition in ASAN that ultimately causes a deadlock in the child. This was fixed upstream but then rolled back (see https://github.com/google/sanitizers/issues/774). Thus, we must avoid allocating any memory in between `fork` and `execvp`. |
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| lean-toolchain | ||
| lean.code-workspace | ||
| LICENSE | ||
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| RELEASES.md | ||
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