linux-kernel - Re: [PATCH v3 10/17] perf: Provide subcmd configuration at runtime

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Date:	Mon, 14 Dec 2015 11:33:58 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Josh Poimboeuf <jpoimboe@...hat.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH v3 10/17] perf: Provide subcmd configuration at runtime

On Sun, Dec 13, 2015 at 10:18:10PM -0600, Josh Poimboeuf wrote:

SNIP

>  
>  typedef int (*config_fn_t)(const char *, const char *, void *);
>  extern int perf_default_config(const char *, const char *, void *);
> diff --git a/tools/perf/util/exec_cmd.c b/tools/perf/util/exec_cmd.c
> index 1099e92..84f9dc5 100644
> --- a/tools/perf/util/exec_cmd.c
> +++ b/tools/perf/util/exec_cmd.c
> @@ -5,19 +5,33 @@
>  #include <string.h>
>  
>  #define MAX_ARGS	32
> +#define UNDEFINED	"UNDEFINED"
>  
>  static const char *argv_exec_path;
>  static const char *argv0_path;
>  
> +static const char *cfg_exec_name	= UNDEFINED;
> +static const char *cfg_prefix		= UNDEFINED;
> +static const char *cfg_exec_path	= UNDEFINED;
> +static const char *cfg_exec_path_env	= UNDEFINED;

so instead of forcing each object to hold some subset
of cfg_* configuration, why not create global cfg
object that would carry this data.. cfg_path or so ;-)

jirka
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