POSIX 上的 C++ 故障转储

Question

I have a big C++ code (server for some application). This application is big, and catch a crash per 2 months in average. And i can't simulate this crash to catch her with gdb .

Is exists some cool api to analyze memory on crash dump (stacktrace, local vars)?

What is best way to catch stack corruption time?

Answer 1

Enable core dumping, wait for it to crash. Then load the core into gdb and debug as usual.

ulimit -c unlimited

Answer 2

There are several things you can do:
1. Unit test your code, and execute them using valgrind
2. enable core dumps (as Let_Me_Be said in his answer)