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native_call: we only support thin pointers as return type #4644

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Merged
merged 1 commit into from
Oct 22, 2025
Merged

native_call: we only support thin pointers as return type #4644

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4 changes: 2 additions & 2 deletions src/shims/native_lib/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@ use libffi::low::CodePtr;
use libffi::middle::Type as FfiType;
use rustc_abi::{HasDataLayout, Size};
use rustc_data_structures::either;
use rustc_middle::ty::layout::TyAndLayout;
use rustc_middle::ty::layout::{HasTypingEnv, TyAndLayout};
use rustc_middle::ty::{self, IntTy, Ty, UintTy};
use rustc_span::Symbol;
use serde::{Deserialize, Serialize};
Expand Down Expand Up @@ -144,7 +144,7 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> {
unsafe { ffi::call::<()>(fun, libffi_args) };
return interp_ok(ImmTy::uninit(dest.layout));
}
ty::RawPtr(..) => {
ty::RawPtr(ty, ..) if ty.is_sized(*this.tcx, this.typing_env()) => {
let x = unsafe { ffi::call::<*const ()>(fun, libffi_args) };
let ptr = StrictPointer::new(Provenance::Wildcard, Size::from_bytes(x.addr()));
Scalar::from_pointer(ptr, this)
Expand Down