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From: David Ahern <dsahern@gmail.com>
To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
	Namhyung Kim <namhyung@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Ingo Molnar <mingo@kernel.org>, Paul Mackerras <paulus@samba.org>,
	Namhyung Kim <namhyung.kim@lge.com>,
	LKML <linux-kernel@vger.kernel.org>, Jiri Olsa <jolsa@redhat.com>
Subject: Re: [PATCH 1/2] perf tools: Ensure --symfs ends with '/'
Date: Wed, 30 Jul 2014 16:20:43 -0600	[thread overview]
Message-ID: <53D96FBB.4010907@gmail.com> (raw)
In-Reply-To: <20140730205521.GU7831@kernel.org>

On 7/30/14, 2:55 PM, Arnaldo Carvalho de Melo wrote:
> @@ -143,6 +144,14 @@ struct symbol_conf {
>   };
>
>   extern struct symbol_conf symbol_conf;
> +
> +static inline int __symbol__join_symfs(char *bf, size_t size, const char *path)
> +{
> +	return path__join(bf, size, symbol_conf.symfs, path);
> +}
> +
> +#define symbol__join_symfs(bf, path) __symbol__join_symfs(bf, sizeof(bf), path)
> +
>   extern int vmlinux_path__nr_entries;
>   extern char **vmlinux_path;
>

I am not comfortable with the sizeof(bf) in the macro there. It is to a 
large degree hiding an important detail and sets up odd failures in the 
future. ie., It works fine for 'char bf[N];' but not for 'char *bf = 
"some string";'.

David

  reply	other threads:[~2014-07-30 22:20 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-25  1:31 [PATCH 1/2] perf tools: Ensure --symfs ends with '/' Namhyung Kim
2014-07-25  1:31 ` [PATCH 2/2] perf tools: Check validity of --symfs value Namhyung Kim
2014-07-25 13:15 ` [PATCH 1/2] perf tools: Ensure --symfs ends with '/' Arnaldo Carvalho de Melo
2014-07-28  1:04   ` Namhyung Kim
2014-07-29  5:02 ` Minchan Kim
2014-07-29 12:33   ` Arnaldo Carvalho de Melo
2014-07-29 13:26     ` Minchan Kim
2014-07-29 13:43       ` Arnaldo Carvalho de Melo
2014-07-29 15:12       ` Arnaldo Carvalho de Melo
2014-07-29 13:57     ` David Ahern
2014-07-29 23:52     ` Namhyung Kim
2014-07-30 15:19       ` Arnaldo Carvalho de Melo
2014-07-30 20:55         ` Arnaldo Carvalho de Melo
2014-07-30 22:20           ` David Ahern [this message]
2014-07-31  4:25           ` Namhyung Kim
2014-07-31 12:26             ` Arnaldo Carvalho de Melo
2014-07-31 23:38               ` Namhyung Kim
2014-08-01 20:15                 ` Arnaldo Carvalho de Melo
2014-08-11  7:38                   ` Namhyung Kim
2014-08-11 13:15                     ` Arnaldo Carvalho de Melo

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