This is tremendously open-ended, but at minimum we should implement the usual tricks from C compilers, such as
This will protect unsafe code, and will mitigate the impact of compiler bugs. Some of it will also protect buggy C code when it's linked with Rust.
The goal here isn't just to make these things possible but to have really painless toolchain support. In many cases the performance impact is insignificant and there's no reason not to compile with mitigations.
Beyond the established techniques, there are a lot of interesting research ideas we could implement. See for example Prof. Michael Franz's talk at Mozilla on compiler-generated software diversity.
NN---, cbeck88 and mrcnskiburdges, alex and cbeck88
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