Looking at the Signal State

The debugger shows you the signal that stopped the thread.

DBX Mode

(idb) run

Thread received signal SEGV

stopped at [void buggy(char*, char*):13 0x080487b8]

     13         output[k] = input[k];

GDB Mode

(idb) run

Starting program: /home/user/examples/x_segv

Program received signal SIGSEGV

buggy (input=0xbfffbf37 "/home/user/examples/x_segv", output=0x0) at src/x_segv.cxx:13

13         output[k] = input[k];