* Adding a condition on a hardware watchpoint based on watchpoint state @ 2023-08-28 11:41 Roger Phillips 2023-08-29 10:24 ` Tom de Vries 0 siblings, 1 reply; 5+ messages in thread From: Roger Phillips @ 2023-08-28 11:41 UTC (permalink / raw) To: gdb [-- Attachment #1: Type: text/plain, Size: 188 bytes --] 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? Regards ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding a condition on a hardware watchpoint based on watchpoint state 2023-08-28 11:41 Adding a condition on a hardware watchpoint based on watchpoint state Roger Phillips @ 2023-08-29 10:24 ` Tom de Vries 2023-08-29 11:55 ` Roger Phillips 0 siblings, 1 reply; 5+ messages in thread From: Tom de Vries @ 2023-08-29 10:24 UTC (permalink / raw) To: Roger Phillips, gdb 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding a condition on a hardware watchpoint based on watchpoint state 2023-08-29 10:24 ` Tom de Vries @ 2023-08-29 11:55 ` Roger Phillips 2023-09-01 19:00 ` Philippe Waroquiers 0 siblings, 1 reply; 5+ messages in thread From: Roger Phillips @ 2023-08-29 11:55 UTC (permalink / raw) To: Tom de Vries, gdb [-- Attachment #1: Type: text/plain, Size: 735 bytes --] 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 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding a condition on a hardware watchpoint based on watchpoint state 2023-08-29 11:55 ` Roger Phillips @ 2023-09-01 19:00 ` Philippe Waroquiers 2023-09-01 19:57 ` Roger Phillips 0 siblings, 1 reply; 5+ messages in thread From: Philippe Waroquiers @ 2023-09-01 19:00 UTC (permalink / raw) To: Roger Phillips, Tom de Vries, gdb 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 > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding a condition on a hardware watchpoint based on watchpoint state 2023-09-01 19:00 ` Philippe Waroquiers @ 2023-09-01 19:57 ` Roger Phillips 0 siblings, 0 replies; 5+ messages in thread From: Roger Phillips @ 2023-09-01 19:57 UTC (permalink / raw) To: Philippe Waroquiers, Tom de Vries, gdb [-- Attachment #1: Type: text/plain, Size: 1590 bytes --] Thanks will try! ________________________________ From: Philippe Waroquiers <philippe.waroquiers@skynet.be> Sent: Friday, September 1, 2023 7:00 PM To: Roger Phillips <heidegg@hotmail.com>; Tom de Vries <tdevries@suse.de>; gdb@sourceware.org <gdb@sourceware.org> Subject: Re: Adding a condition on a hardware watchpoint based on watchpoint state 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 > ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2023-09-01 19:57 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-08-28 11:41 Adding a condition on a hardware watchpoint based on watchpoint state Roger Phillips 2023-08-29 10:24 ` Tom de Vries 2023-08-29 11:55 ` Roger Phillips 2023-09-01 19:00 ` Philippe Waroquiers 2023-09-01 19:57 ` Roger Phillips
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