linux-kernel - Re: [PATCH] perf config: add annotate.demangle{,

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Message-ID: <YEOCBeicraSekpIt@kernel.org>
Date:   Sat, 6 Mar 2021 10:22:13 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Martin Liška <mliska@...e.cz>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH] perf config: add annotate.demangle{,_kernel}

Em Fri, Feb 26, 2021 at 11:08:12AM +0100, Martin Liška escreveu:
> On 2/26/21 11:03 AM, Martin Liška wrote:
> > On 2/23/21 8:49 PM, Arnaldo Carvalho de Melo wrote:
> > > Please consider making this configurable (if not already) via
> > > ~/.perfconfig, 'perf config', sure in a followup patch.
> > 
> > I'm doing that in the following patch.
> 
> The patch contained a typo, fixed in the V2.



Thanks, applied.

And expanded that commit log a bit:

Author: Martin Liska <mliska@...e.cz>
Date:   Fri Feb 26 11:01:24 2021 +0100

    perf config: Add annotate.demangle{,_kernel}
    
    Committer notes:
    
    This allows setting this in from the command line:
    
      $ perf config annotate.demangle
      $ perf config annotate.demangle=yes
      $ perf config annotate.demangle
      annotate.demangle=yes
      $ cat ~/.perfconfig
      # this file is auto-generated.
      [report]
            sort-order = srcline
      [annotate]
            demangle = yes
      $
      $
      $ perf config annotate.demangle_kernel
      $ perf config annotate.demangle_kernel=yes
      $ perf config annotate.demangle_kernel
      annotate.demangle_kernel=yes
      $ cat ~/.perfconfig
      # this file is auto-generated.
      [report]
            sort-order = srcline
      [annotate]
            demangle = yes
            demangle_kernel = yes
      $
    
    Signed-off-by: Martin Liška <mliska@...e.cz>
    Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
    Link: https://lore.kernel.org/r/c96aabe7-791f-9503-295f-3147a9d19b60@suse.cz
    Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

- Arnaldo

 
> Martin
> 
> > 
> > Thanks,
> > Martin
> 

> From a29a6d3ae717f19774a430ccf9a63a452376f359 Mon Sep 17 00:00:00 2001
> From: Martin Liska <mliska@...e.cz>
> Date: Fri, 26 Feb 2021 11:01:24 +0100
> Subject: [PATCH] perf config: add annotate.demangle{,_kernel}
> MIME-Version: 1.0
> Content-Type: text/plain; charset=UTF-8
> Content-Transfer-Encoding: 8bit
> 
> Signed-off-by: Martin Liška <mliska@...e.cz>
> ---
>  tools/perf/Documentation/perf-config.txt | 6 ++++++
>  tools/perf/util/annotate.c               | 4 ++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
> index 153bde14bbe0..154a1ced72b2 100644
> --- a/tools/perf/Documentation/perf-config.txt
> +++ b/tools/perf/Documentation/perf-config.txt
> @@ -393,6 +393,12 @@ annotate.*::
>  
>  		This option works with tui, stdio2 browsers.
>  
> +	annotate.demangle::
> +		Demangle symbol names to human readable form. Default is 'true'.
> +
> +	annotate.demangle_kernel::
> +		Demangle kernel symbol names to human readable form. Default is 'true'.
> +
>  hist.*::
>  	hist.percentage::
>  		This option control the way to calculate overhead of filtered entries -
> diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
> index 80542012ec1b..e35d56608986 100644
> --- a/tools/perf/util/annotate.c
> +++ b/tools/perf/util/annotate.c
> @@ -3142,6 +3142,10 @@ static int annotation__config(const char *var, const char *value, void *data)
>  		opt->use_offset = perf_config_bool("use_offset", value);
>  	} else if (!strcmp(var, "annotate.disassembler_style")) {
>  		opt->disassembler_style = value;
> +	} else if (!strcmp(var, "annotate.demangle")) {
> +		symbol_conf.demangle = perf_config_bool("demangle", value);
> +	} else if (!strcmp(var, "annotate.demangle_kernel")) {
> +		symbol_conf.demangle_kernel = perf_config_bool("demangle_kernel", value);
>  	} else {
>  		pr_debug("%s variable unknown, ignoring...", var);
>  	}
> -- 
> 2.30.1
> 


-- 

- Arnaldo