38 lines
705 B
Rust
38 lines
705 B
Rust
// only-aarch64
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// run-pass
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// needs-asm-support
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#![feature(asm_unwind)]
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use std::arch::asm;
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use std::panic::{catch_unwind, resume_unwind, AssertUnwindSafe};
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struct Foo<'a>(&'a mut bool);
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impl Drop for Foo<'_> {
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fn drop(&mut self) {
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*self.0 = false;
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}
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}
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extern "C" fn panicky() {
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resume_unwind(Box::new(()));
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}
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fn main() {
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let flag = &mut true;
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catch_unwind(AssertUnwindSafe(|| {
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let _foo = Foo(flag);
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unsafe {
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asm!(
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"bl {}",
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sym panicky,
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clobber_abi("C"),
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options(may_unwind)
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);
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}
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}))
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.expect_err("expected a panic");
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assert_eq!(*flag, false);
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}
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