build and install gcc to $prefix, then to see the raw backtrace info run:
LD_LIBRARY_PATH=$prefix/lib64 CXX=$prefix/bin/g++ make run

for a filtered view using addr2line, see ./prettytrace.sh:
LD_LIBRARY_PATH=$prefix/lib64 CXX=$prefix/bin/g++ make run |& ./prettytrace.sh

prettytrace.sh relies on addr2line and c++filt to lookup and demangle names,
and misc coreutils

example_out.txt has an example of the raw output while example_pretty.txt
shows the corresponding prettified output