Spender's mindset is even worse though.
It's compiler's fault for not doing the same sort of stack probing they already do on windows targets.
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I'm glad to see work starting to progress in Clang/LLVM again as a result
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Note that it's once again a set of changes for Rust, which
@whitequark and@pcwalton revived. Clang would need to wire up a switch to it. -
Maybe -fstack-check (instead of it the very poor decision to make it a no-op...) or maybe a new switch breaking away from weird GCC choices.
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Clang/LLVM already had stack probes for Windows which are unconditionally enabled but not wired up in a way that it could be used elsewhere.
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Apart from a -fstack-check implementation in clang this also needs compiler-rt code, that's trickier because of large support matrix
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I wouldn't be the one to write it, though feel free to tag me as a reviewer
End of conversation
New conversation -
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It's about the issue within the kernel. It's true that compiler stack probes could work for the kernel as an option depending on VMAP_STACK.
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