Re: [PATCH V6 00/15] perf/x86: Add perf text poke events

[Adrian Hunter]

On 5/04/20 11:13 pm, Adrian Hunter wrote:
> Hi
> 
> Here are patches to add a text poke event to record changes to kernel text
> (i.e. self-modifying code) in order to support tracers like Intel PT
> decoding through jump labels, kprobes and ftrace trampolines.
> 
> The first 8 patches make the kernel changes and the subsequent patches are
> tools changes.
> 
> The next 4 patches add support for updating perf tools' data cache
> with the changed bytes.
> 
> The next patch is an Intel PT specific tools change.
> 
> The final 2 patches add perf script --show-text-poke-events option
> 
> Patches also here:
> 
> 	git://git.infradead.org/users/ahunter/linux-perf.git text_poke
> 
> Changes in V6
> 
>   perf: Add perf text poke event
> 
> 	Adjustments due to re-base on top of cgroup event patches
> 
>   perf/x86: Add perf text poke events for kprobes
> 
> 	Expand commit message
> 	Add Masami's Ack
> 
>   perf tools: Add support for PERF_RECORD_TEXT_POKE
> 
> 	Adjustments due to re-base on top of cgroup event patches
> 	Improvements to perf_event__fprintf_text_poke()
> 
>   perf script: Add option --show-text-poke-events
>   perf script: Show text poke address symbol
> 
> 	New patches
> 

Any comments?