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

[Paul Pluzhnikov]

mathieu <mathieu.malaterre@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.

Cheers,
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