Portable C++ Stack Trace on Exception

Question

I am writing a library that I would like to be portable. Thus, it should not depend on glibc or Microsoft extensions or anything else that is not in the standard. I have a

Answer 1

Since stack usage is highly platform and implementation dependent, there is no way to do it directly that is completely portable. However, you could build a portable interface to a platform and compiler specific implementation, localizing the issues as much as possible. IMHO, this would be your best approach.

The tracer implementation would then link to whatever platform specific helper libraries are available. It would then operate only when an exception occurs, and even then only if you called it from a catch block. Its minimal API would simply return a string containing the whole trace.

Requiring the coder to inject catch and rethrow processing in the call chain has significant runtime costs on some platforms, and imposes a large future maintenance cost.

That said, if you do choose to use the catch/throw mechanism, don't forget that even C++ still has the C preprocessor available, and that the macros __FILE__ and __LINE__ are defined. You can use them to include the source file name and line number in your trace information.