Re: [PATCH V2 00/13] perf/x86: Add perf text poke events

[Adrian Hunter]

On 12/02/20 2:49 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 last patch is an Intel PT specific tools change.
> 
> 
> Changes in V2:
> 
>   perf: Add perf text poke event
> 
> 	Separate out x86 changes
> 	The text poke event now has old len and new len
> 	Revised commit message
> 
>   perf/x86: Add support for perf text poke event for text_poke_bp_batch() callers
> 
> 	New patch containing x86 changes from original first patch

Any comments?