Handling CPU exceptions in C++

Question

is there a cross-platform way to handle the CPU exceptions like segmentation faults, or division by zero? Lets say, I need to call some potentially unsafe functions (for example from a plug-in file), that can cause a segfault, or some other problems that I cannot test before I execute it. I know, that the C standard library has signal handling functions, but I don't know how to use them to handle the problem to avoid the program termination (I guess, I can't just jump to the location before the problematic functions execution, or can I?). Under windows I could use the SEH exception handlers, but I can't do that under Linux, or any other OS. What about using my own exception handler to handle these problems, how much is that different between Windows/Linux? Would that be even possible (via assembler - lets say just on the x86 platform)?

I'm asking mostly out of curiosity, I'm not trying to solve an existing problem (yet). Thanks

Answer 1

libsigsegv is a cross-platform library for handling segmentation faults and stack overflows. However, in the vast majority of cases, when you detect a segmentation fault, the right thing to do is to terminate execution as fast as possible instead of trying to recover from it. A segfault is usually indicative of a bug or corrupted memory, and once you have corrupted memory, it's virtually impossible to recover from that.