linux-kernel - Re: [PATCH 1/2] [BUGFIX] perf probe: Fix to copy the type for raw parameters

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Message-ID: <4C5BB727.80905@hitachi.com>
Date:	Fri, 06 Aug 2010 16:17:59 +0900
From:	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>, Ingo Molnar <mingo@...e.hu>,
	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, 2nddept-manager@....hitachi.co.jp
Subject: Re: [PATCH 1/2] [BUGFIX] perf probe: Fix to copy the type for raw
 parameters

Masami Hiramatsu wrote:
> Copy type field if it is for raw parameters.
> Without this fix, perf probe drops the type if user passes it
> for raw parameters (e.g. %ax:u32 will be converted to %ax).

Hi Arnaldo,

Could you pick these patches?

Thank you,

> 
> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
> Cc: Paul Mackerras <paulus@...ba.org>
> Cc: Ingo Molnar <mingo@...e.hu>
> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> Cc: Frederic Weisbecker <fweisbec@...il.com>
> Cc: linux-kernel@...r.kernel.org
> ---
> 
>  tools/perf/util/probe-finder.c |    8 ++++++--
>  1 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
> index 840f1aa..b69d194 100644
> --- a/tools/perf/util/probe-finder.c
> +++ b/tools/perf/util/probe-finder.c
> @@ -706,8 +706,12 @@ static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
>  		pf->tvar->value = strdup(pf->pvar->var);
>  		if (pf->tvar->value == NULL)
>  			return -ENOMEM;
> -		else
> -			return 0;
> +		if (pf->pvar->type) {
> +			pf->tvar->type = strdup(pf->pvar->type);
> +			if (pf->tvar->type == NULL)
> +				return -ENOMEM;
> +		}
> +		return 0;
>  	}
> 
>  	pr_debug("Searching '%s' variable in context.\n",
> 
> 

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