套件：libunwind-15-dev（1:15.0.7-6） [debports]
production-quality unwinder
libunwind is a production-quality unwinder, with platform support for DWARF unwind info, SjLj, and ARM EHABI.
The low level libunwind API was designed to work either in-process (aka local) or to operate on another process (aka remote), but only the local path has been implemented. Remote unwinding remains as future work.