29c1a2b9e9
While the KCFI scheme is not incompatible with unwinding, LLVM's `invoke` instruction does not currently support KCFI bundles. While it likely will in the near future, we won't be able to assume that in Rust for a while.
39 lines
863 B
Rust
39 lines
863 B
Rust
// Check that encoding self-referential types works with #[repr(transparent)]
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//@ revisions: cfi kcfi
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// FIXME(#122848) Remove only-linux once OSX CFI binaries work
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//@ only-linux
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//@ [cfi] needs-sanitizer-cfi
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//@ [kcfi] needs-sanitizer-kcfi
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//@ compile-flags: -C target-feature=-crt-static
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//@ [cfi] compile-flags: -C codegen-units=1 -C lto -C prefer-dynamic=off -C opt-level=0
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//@ [cfi] compile-flags: -Z sanitizer=cfi
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//@ [kcfi] compile-flags: -Z sanitizer=kcfi
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//@ [kcfi] compile-flags: -C panic=abort -C prefer-dynamic=off
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//@ run-pass
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use std::marker::PhantomData;
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struct X<T> {
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_x: u8,
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p: PhantomData<T>,
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}
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#[repr(transparent)]
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struct Y(X<Y>);
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trait Fooable {
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fn foo(&self, y: Y);
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}
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struct Bar;
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impl Fooable for Bar {
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fn foo(&self, _: Y) {}
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}
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fn main() {
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let x = &Bar as &dyn Fooable;
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x.foo(Y(X {_x: 0, p: PhantomData}));
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}
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