[GitHub] [incubator-teaclave-sgx-sdk] dingelish commented on issue #341: Will panicking inside of enclave code cause undefined behavior

[GitBox <gi...@apache.org>]

dingelish commented on issue #341:
URL: https://github.com/apache/incubator-teaclave-sgx-sdk/issues/341#issuecomment-849096081


   hi @longtomjr ! we are aware of this UB since the first day we started this project. so by design, we do not allow any cross FFI-boundary unwinding. and we support Rust `catch_unwind` to handle exceptions within the Rust space.
   
   https://github.com/apache/incubator-teaclave-sgx-sdk/blob/master/samplecode/unit-test/enclave/src/test_exception.rs#L65
   
   Intel SGX SDK never throw exceptions outside, so we're good and we don't catch Intel SGX SDK's C++ exceptions.
   
   I'm not clear if you are confusing between "the panic generated by CPU", and "panic generated by unwrap". please elaborate.


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