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Enable Miri to pass pointers through FFI Following https://github.com/rust-lang/rust/pull/126787, the purpose of this PR is to now enable Miri to execute native calls that make use of pointers. > <details> > > <summary> Simple example </summary> > > ```rust > extern "C" { > fn ptr_printer(ptr: *mut i32); > } > > fn main() { > let ptr = &mut 42 as *mut i32; > unsafe { > ptr_printer(ptr); > } > } > ``` > ```c > void ptr_printer(int *ptr) { > printf("printing pointer dereference from C: %d\n", *ptr); > } > ``` > should now show `printing pointer dereference from C: 42`. > > </details> Note that this PR does not yet implement any logic involved in updating Miri's "analysis" state (byte initialization, provenance) upon such a native call. r? ``@RalfJung`` |
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