| //@ no-prefer-dynamic |
| //@ aux-build: decl_with_default_panics.rs |
| //@ edition: 2021 |
| //@ run-pass |
| //@ needs-unwind |
| //@ exec-env:RUST_BACKTRACE=1 |
| //@ ignore-backends: gcc |
| // FIXME: linking on windows (speciifcally mingw) not yet supported, see tracking issue #125418 |
| //@ ignore-windows |
| // A small test to make sure that unwinding works properly. |
| // |
| // Functions can have target-cpu applied. On apple-darwin this is super important, |
| // since you can have binaries which mix x86 and aarch64 code that are compatible |
| // with both architectures. So we can't just reject target_cpu on EIIs since apple |
| // puts them on by default. The problem: we generate aliases. And aliases cannot |
| // get target_cpu applied to them. So, instead we should, in the case of functions, |
| // generate a shim function. For statics aliases should keep working. |
| // However, to make this work properly, |
| // on LLVM we generate shim functions instead of function aliases. |
| // Little extra functions that look like |
| // ``` |
| // function alias_symbol(*args) {return (tailcall) aliasee(*args);} |
| // ``` |
| // This is a simple test to make sure that we can unwind through these, |
| // and that this wrapper function effectively doesn't show up in the trace. |
| |
| extern crate decl_with_default_panics; |
| |
| fn main() { |
| let result = std::panic::catch_unwind(|| { |
| decl_with_default_panics::decl1(10); |
| }); |
| assert!(result.is_err()); |
| } |
