Need advice on how to debug

Hello fellow coders.

I am in desperate need of some advice in how to debug a intermettent stack
smashing problem.

There is no problem detecting when this happens as Squid segfaults almost
immediately (on return from the function which smashed the stack), just
not where. As the stack is quite smashed a function return ends up at
address 0 and there is no stack frames to follow..

As the problem does not occur very frequently running with full debug
enabled is not really feasible.

I have tried using stackshield, but that tool is simply not yet mature or
maintained and the current version has very many bugs, mostly due to very
weak parser.. (needs to be rewritten). Attempted to build Squid with
stackshield enabled (after fixing some obvious bugs in stackshield) but
the resulting binary is not even a fully valid binary..

Does any of you know about other tools which can be used to trap where the
stack gets smashed?

Regards
Henrik
Received on Wed Jan 21 2004 - 16:05:05 MST