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Subject: Re: [PATCH V6 00/15] perf/x86: Add perf text poke events
From:   Adrian Hunter <adrian.hunter@intel.com>
To:     Peter Zijlstra <peterz@infradead.org>
Cc:     Ingo Molnar <mingo@redhat.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Borislav Petkov <bp@alien8.de>,
        "H . Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Leo Yan <leo.yan@linaro.org>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Jiri Olsa <jolsa@redhat.com>, linux-kernel@vger.kernel.org
References: <20200405201327.7332-1-adrian.hunter@intel.com>
Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki,
 Business Identity Code: 0357606 - 4, Domiciled in Helsinki
Message-ID: <7720bfa0-2280-17c5-1537-b87617b18884@intel.com>
Date:   Mon, 20 Apr 2020 09:21:43 +0300
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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?