I\'ve seen a few different types of crash logs since I begin learning iOS development.
I know that: Exception Type: EXC_BAD_ACCESS (SIGSEGV) mea
These messages are from gdb, and they are not exclusive for objective-C.
To get info about the signals all you have to do is enter info signals at the debugger console, this is an example output. Sorry for no posting it here, but the format of the console output is awful.
Source and more info about signals