Re: A question on debugging libraries
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
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