Re: Setting hardware breakpoint in gdb (g++-4.2)

[mathieu]

On Sep 26, 9:54 pm, Paul Pluzhnikov <ppluzhnikov-...@charter.net>
wrote:
> mathieu <mathieu.malate...@gmail.com> writes:
> >   I think I misunderstood how to set hardware breakpoint in gdb. I
> > would usually do:
>
> > gdb> hb *((int*)0x0123456)
>
> This is exactly the same as 'break *0x0123456' on platforms that
> have hardware breakpoint instruction (which is all common platforms
> for general computing).
>
> You are setting a breakpoint that will fire when instruction at
> location 0x123456 executes. Since there is no instruction there,
> the breakpoint never fires.
>
> >   For some reason this is not working anymore:
>
> It never did. Try 'watch *0x123456' instead.

Thanks !