I've searched for a while about what's the difference between -funwind-tables and -fasynchronous-unwind-tables, but it seems there was not an exactly answer which could give a clear explanation.
In other worlds :
What's the difference between asynchronous-unwind-tables and unwind-tables?
What's the meaning and advantages of asynchronous?
Thanks.
Some related materials I've found:
3.17 Options for Code Generation Conventions
[llvm-dev] [RFC] Asynchronous unwind tables attribute
[git commit] libubacktrace: use -funwind-tables rather than -fexecptions