linux-kernel - Re: [PATCH] xconfig: Display dependency values in debug

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Date:	Wed, 25 Jul 2012 16:18:15 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Salar Ali Mumtaz <salaarali@...il.com>
CC:	Michal Marek <mmarek@...e.cz>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] xconfig: Display dependency values in debug_info

On 07/25/2012 03:56 PM, Salar Ali Mumtaz wrote:

> Displays the current value of each of the dependencies of a menu item.
> Before, you needed to do tedious searching to find out the current values
> of the dependences. Now they all are included in the debug_info, making
> the task easier

Hi,
Would you please provide before and after examples?

I use xconfig quite a lot and it already shows me, e.g., for
CONFIG_DRM:


Symbol: DRM [=y]
Type : tristate
Prompt: Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
Defined at drivers/gpu/drm/Kconfig:7
Depends on: HAS_IOMEM [=y] && (AGP [=y] || AGP [=y]=n) && !EMULATED_CMPXCHG && MMU [=y]
Location:
-> Device Drivers
-> Graphics support
Selects: I2C [=y] && I2C_ALGOBIT [=y] && DMA_SHARED_BUFFER [=y]




so what and where does this patch add debug info?

Thanks.


> Signed-off-by: Salar Ali Mumtaz <salaarali@...il.com>
> ---
>  scripts/kconfig/qconf.cc |   10 +++++++++-
>  1 files changed, 9 insertions(+), 1 deletions(-)
> 
> diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
> index df274fe..abd500f 100644
> --- a/scripts/kconfig/qconf.cc
> +++ b/scripts/kconfig/qconf.cc
> @@ -1073,8 +1073,10 @@ QString ConfigInfoView::debug_info(struct symbol *sym)
>  		debug += " (choice)";
>  	debug += "<br>";
>  	if (sym->rev_dep.expr) {
> -		debug += "reverse dep: ";
> +		debug += "reverse dep: (";
>  		expr_print(sym->rev_dep.expr, expr_print_help, &debug, E_NONE);
> +		debug += " )  =";
> +		debug += print_filter(sym_get_string_value(sym));
>  		debug += "<br>";
>  	}
>  	for (struct property *prop = sym->prop; prop; prop = prop->next) {
> @@ -1108,7 +1110,10 @@ QString ConfigInfoView::debug_info(struct symbol *sym)
>  		}
>  		if (prop->visible.expr) {
>  			debug += "&nbsp;&nbsp;&nbsp;&nbsp;dep: ";
> +			debug += " ( ";
>  			expr_print(prop->visible.expr, expr_print_help, &debug, E_NONE);
> +			debug += " )  =";
> +			debug += print_filter(sym_get_string_value(sym));
>  			debug += "<br>";
>  		}
>  	}
> @@ -1157,6 +1162,9 @@ void ConfigInfoView::expr_print_help(void *data, struct symbol *sym, const char
>  		*text += QString().sprintf("<a href=\"s%p\">", sym);
>  		*text += str2;
>  		*text += "</a>";
> +		*text += "<b>   ";
> +		*text += print_filter(sym_get_string_value(sym));
> +		*text += "</b>";
>  	} else
>  		*text += str2;
>  }



-- 
~Randy
--
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