linux-kernel - Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid cache if symfs is given

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Message-ID: <20160512130925.GG20258@kernel.org>
Date:	Thu, 12 May 2016 10:09:25 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	David Ahern <dsahern@...il.com>
Cc:	He Kuang <hekuang@...wei.com>, peterz@...radead.org,
	mingo@...hat.com, alexander.shishkin@...ux.intel.com,
	jolsa@...hat.com, wangnan0@...wei.com, jpoimboe@...hat.com,
	ak@...ux.intel.com, eranian@...gle.com, namhyung@...nel.org,
	adrian.hunter@...el.com, sukadev@...ux.vnet.ibm.com,
	masami.hiramatsu.pt@...achi.com, tumanova@...ux.vnet.ibm.com,
	kan.liang@...el.com, penberg@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/7] perf tools: Remove the logical that skip buildid
 cache if symfs is given

Em Thu, May 12, 2016 at 08:43:12AM +0000, He Kuang escreveu:
> Symfs dir and buildid dir are two places that perf looks into for
> symbols, currently, if symfs dir is given, buildid-cache is skipped.
> 
> In the cross-platform perf record/script scenario, we need vdsos in
> buildid-cache dir and other libs in symfs dir at the same time. And
> consider that the binaries indexed by buildid do not cause ambiguity,
> this patch simply removes that logical.

Makes perfect sense, David, do you have any concern? Can I have your
Acked-by?

- Arnaldo
 
> Signed-off-by: He Kuang <hekuang@...wei.com>
> ---
>  tools/perf/util/dso.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
> index b39b80c..a07166c5 100644
> --- a/tools/perf/util/dso.c
> +++ b/tools/perf/util/dso.c
> @@ -64,8 +64,7 @@ int dso__read_binary_type_filename(const struct dso *dso,
>  		break;
>  	case DSO_BINARY_TYPE__BUILD_ID_CACHE:
>  		/* skip the locally configured cache if a symfs is given */
> -		if (symbol_conf.symfs[0] ||
> -		    (dso__build_id_filename(dso, filename, size) == NULL))
> +		if (dso__build_id_filename(dso, filename, size) == NULL)
>  			ret = -1;
>  		break;
>  
> -- 
> 1.8.5.2