Re: [PATCH] [KBUILD] add symbol value to help find the real depend

[Randy Dunlap]

On Wed, 18 Feb 2009 16:13:45 +0800 Cheng Renquan wrote:

> From: Cheng Renquan <chengrq@xxxxxxxxxx>
> 
> kbuild-menuconfig-display-depend-value.patch
> 
> Sometimes when configuring need to disable some unused item, but the item is
> selected by many other items, it's hard to find the real dependency which
> selected it, This patch add every symbol's value accompanied to make it
> possible to find the real dependency easily.
> 
> An example is CONFIG_RFKILL,
> 
>   ---------------------- RF switch subsystem support ----------------------
>   | CONFIG_RFKILL:                                                        |
>   |                                                                       |
>   | Say Y here if you want to have control over RF switches               |
>   | found on many WiFi and Bluetooth cards.                               |
>   |                                                                       |
>   | To compile this driver as a module, choose M here: the                |
>   | module will be called rfkill.                                         |
>   |                                                                       |
>   | Symbol: RFKILL [=m]                                                   |
>   | Prompt: RF switch subsystem support                                   |
>   |   Defined at net/rfkill/Kconfig:4                                     |
>   |   Depends on: NET [=y]                                                |
>   |   Location:                                                           |
>   |     -> Networking support (NET [=y])                                  |
>   |   Selected by: IWLCORE [=n] && NETDEVICES [=y] && !S390 [=S390] && PC |
>   |                                                                       |
>   ----------------------------------------------------------------( 99%)---
> 
> Signed-off-by: Cheng Renquan <chengrq@xxxxxxxxxx>
> 
> ---
> 
> Index: linux-2.6.29-rc5-lio/scripts/kconfig/expr.c
> ===================================================================
> --- linux-2.6.29-rc5-lio.orig/scripts/kconfig/expr.c
> +++ linux-2.6.29-rc5-lio/scripts/kconfig/expr.c
> @@ -1098,6 +1098,9 @@ void expr_fprint(struct expr *e, FILE *o
>  static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str)
>  {
>  	str_append((struct gstr*)data, str);
> +	if (sym)
> +		str_printf((struct gstr *)data, " [=%s]",
> +				sym_get_string_value(sym));
>  }
>  
>  void expr_gstr_print(struct expr *e, struct gstr *gs)
> --

Hi,

This looks good/helpful.  Can it be made to work with
gconfig & xconfig as well as menuconfig?

Thanks,
---
~Randy
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