std: Disable usage of mmap allocator in libbacktrace #45523
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This is sort of a long overdue change from the investigation in rust-lang#29293 and rust-lang#37477. The released binaries of rustc don't have debug information and so don't actively suffer this problem but this can hit local development of rustc and also larger programs compiled against libstd generating backtraces. The main purpose of the mmap allocator in libacktrace is to be usable from a signal handler, but we don't do that, so the normal allocator using malloc/free should work well for us.
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I landed this upstream in the |
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r? @sfackler |
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@bors r+ |
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📌 Commit 2f3c412 has been approved by |
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std: Disable usage of mmap allocator in libbacktrace This is sort of a long overdue change from the investigation in #29293 and #37477. The released binaries of rustc don't have debug information and so don't actively suffer this problem but this can hit local development of rustc and also larger programs compiled against libstd generating backtraces. The main purpose of the mmap allocator in libacktrace is to be usable from a signal handler, but we don't do that, so the normal allocator using malloc/free should work well for us.
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☀️ Test successful - status-appveyor, status-travis |
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This is sort of a long overdue change from the investigation in #29293
and #37477. The released binaries of rustc don't have debug information and so
don't actively suffer this problem but this can hit local development of rustc
and also larger programs compiled against libstd generating backtraces.
The main purpose of the mmap allocator in libacktrace is to be usable from a
signal handler, but we don't do that, so the normal allocator using malloc/free
should work well for us.