in cxx/lyra/lyra.cpp [120:135]
void getStackTraceSymbols(vector<StackTraceElement>& symbols,
const vector<InstructionPointer>& trace) {
symbols.clear();
symbols.reserve(trace.size());
#ifndef _WIN32
for (size_t i = 0; i < trace.size(); ++i) {
Dl_info info;
if (dladdr(trace[i], &info)) {
symbols.emplace_back(trace[i], info.dli_fbase, info.dli_saddr,
info.dli_fname ? info.dli_fname : "",
info.dli_sname ? info.dli_sname : "");
}
}
#endif
}