my rust fork
https://www.rust-lang.org
`compiler_builtins` exposes an `extern "C"` version of `libm` routines, so add the same here. There really isn't much to test here (unless we later add tests against C `libm` suites), but one nice benefit is this gives us a library with unmangled names that is easy to `objdump`. In accordance with that, also update `cb` to be a `staticlib`. Unfortunately this also means we have to remove it from the workspace, since Cargo doesn't allow setting `panic = "abort"` for a single crate. |
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