linux-kernel - Re: [PATCH V3] perf script: Find script file relative to exec path

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Message-ID: <YKt0kMqeIq5ypW4O@krava>
Date:   Mon, 24 May 2021 11:40:32 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3] perf script: Find script file relative to exec path

On Mon, May 24, 2021 at 09:57:18AM +0300, Adrian Hunter wrote:
> Allow perf script to find a script in the exec path.
> 
> Example:
> 
> Before:
> 
>  $ perf record -a -e intel_pt/branch=0/ sleep 0.1
>  [ perf record: Woken up 1 times to write data ]
>  [ perf record: Captured and wrote 0.954 MB perf.data ]
>  $ perf script intel-pt-events.py 2>&1 | head -3
>    Error: Couldn't find script `intel-pt-events.py'
>    See perf script -l for available scripts.
>  $ perf script -s intel-pt-events.py 2>&1 | head -3
>  Can't open python script "intel-pt-events.py": No such file or directory
>  $ perf script ~/libexec/perf-core/scripts/python/intel-pt-events.py 2>&1 | head -3
>    Error: Couldn't find script `/home/ahunter/libexec/perf-core/scripts/python/intel-pt-events.py'
>    See perf script -l for available scripts.
>  $
> 
> After:
> 
>  $ perf script intel-pt-events.py 2>&1 | head -3
>  Intel PT Power Events and PTWRITE
>             perf  8123/8123  [000]       551.230753986     cbr:  42  freq: 4219 MHz  (156%)                0 [unknown] ([unknown])
>             perf  8123/8123  [001]       551.230808216     cbr:  42  freq: 4219 MHz  (156%)                0 [unknown] ([unknown])
>  $ perf script -s intel-pt-events.py 2>&1 | head -3
>  Intel PT Power Events and PTWRITE
>             perf  8123/8123  [000]       551.230753986     cbr:  42  freq: 4219 MHz  (156%)                0 [unknown] ([unknown])
>             perf  8123/8123  [001]       551.230808216     cbr:  42  freq: 4219 MHz  (156%)                0 [unknown] ([unknown])
>  $ perf script ~/libexec/perf-core/scripts/python/intel-pt-events.py 2>&1 | head -3
>  Intel PT Power Events and PTWRITE
>             perf  8123/8123  [000]       551.230753986     cbr:  42  freq: 4219 MHz  (156%)                0 [unknown] ([unknown])
>             perf  8123/8123  [001]       551.230808216     cbr:  42  freq: 4219 MHz  (156%)                0 [unknown] ([unknown])
>  $
> 
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>

Acked-by: Jiri Olsa <jolsa@...hat.com>

thanks,
jirka