How to have gdb exit if program succeeds, break if program crashes?

Question

I seem to have some kind of multithreading bug in my code that makes it crash once every 30 runs of its test suite. The test suite is non-interactive. I want to run my test

Answer 1

The easiest way is to use the Python API offered by gdb:

 def exit_handler(event):
     gdb.execute("quit")

 gdb.events.exited.connect(exit_handler)

You can even do it with one line:

(gdb) gdb.events.exited.connect(lambda x : gdb.execute("quit")

You can also examine the return code to ensure it's the "normal" code you expected with event.exit_code.

You can use it in conjuction with --eval-command or --command as mentioned by @acm to register the event handler from the command line, or with a .gdbinit file.