Re: Adding a condition on a hardware watchpoint based on watchpoint state

[Philippe Waroquiers <philippe.waroquiers@skynet.be>]

In the meantime, you should be able to do what you want with command attached to the
watch point such as the below that watches the value of a variable i.

watch -location i
set var $prev = i
command $bpnum
if $prev < i
  printf "increase prev %d %d \n", $prev, i
  set var $prev = i
else
  printf "decrease prev %d %d \n", $prev, i
  set var $prev = i
  continue
end
end

On Tue, 2023-08-29 at 11:55 +0000, Roger Phillips via Gdb wrote:
> Very well, thank you. Can you imagine if and when this goes into a release?
> 
> Regards
> 
> ________________________________
> From: Tom de Vries <tdevries@suse.de>
> Sent: Tuesday, August 29, 2023 10:24 AM
> To: Roger Phillips <heidegg@hotmail.com>; gdb@sourceware.org <gdb@sourceware.org>
> Subject: Re: Adding a condition on a hardware watchpoint based on watchpoint state
> 
> On 8/28/23 13:41, Roger Phillips via Gdb wrote:
> > Greetings,
> > 
> > I want to install a condition on a hardware watchpoint so that only accesses are stopped that increase the value of the variable 1 -> 2 etc.
> > 
> > Is this possible?
> > 
> 
> There's an enhancement PR open about this (
> https://sourceware.org/bugzilla/show_bug.cgi?id=29480 ).
> 
> Thanks,
> - Tom
>