I started running into this as well after upgrading from Ubuntu 20.04 to Ubuntu 20.10. I haven't looked into the cause that much (changes in GCC 10 maybe?), but it seems it may have been fixed upstream in libunwind v1.5 in [this commit](https://github.com/libunwind/libunwind/commit/29e17d8d2ccbca07c423e3089a6d5ae8a1c9cb6e) (referenced from [a similar FreeBSD bug report](https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248699)).
Locally, I just commented out one of the `_U_dyn_info_list` definitions in the SDK, and it looks to be building/running fine so far. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/apache/incubator-teaclave-sgx-sdk/issues/313#issuecomment-776315992
