x86_64 macOS has tier 1 rust platform support, which I believe means that it's guaranteed that you get a crash on stack overflow and you can't evade stack prote

x86_64 macOS has tier 1 rust platform support, which I believe means that it's guaranteed that you get a crash on stack overflow and you can't evade stack protection in safe rust. It's not possible on all platforms, hence the tiers. Apparently ARM64 macOS has tier 2 rust platform support, which might mean that that this is not true there, but maybe safe rust has some different unrelated soundness issue on this platform. I only have very surface knowledge about the tier stuff, so maybe someone can correct me.