On Tue, Feb 10, 2004 at 11:39:31AM +1100, Ian Wienand wrote: > Hi, > > I'm not sure if this is a bug or something I have misunderstood about > the debugging libraries. I want to show an example of debugging a > libc call, so just simply overflowed a buffer with strcpy.
There's your problem. You are trying to get a backtrace. A walk up the stack frame, yes? So you generated a crash by overwriting the stack; naturally we can not backtrace. > #0 0x74732067 in ?? () > #1 0x676e6972 in ?? () If the top frames are lost, then there is nothing you can expect from the below frames. Besides, you're in main; there is only one or at most two frames on the stack anyway. -- Daniel Jacobowitz MontaVista Software Debian GNU/Linux Developer
