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Subject: Re: [ANNOUNCE] headercheck - check dependencies on header files
From: Jaswinder Singh Rajput <jaswinder@kernel.org>
In-Reply-To: <20090409204219.GA31511@uranus.ravnborg.org>
References: <20090409204219.GA31511@uranus.ravnborg.org>
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Date: Fri, 10 Apr 2009 08:58:20 +0530
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To: Sam Ravnborg <sam@ravnborg.org>
Cc: linux-kbuild <linux-kbuild@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>

Hello Sam,

On Thu, 2009-04-09 at 22:42 +0200, Sam Ravnborg wrote:
> We have at several occasions discussed if our header files
> should include their dependencies or not.
> 
> But we were lacking a tool to tell us if our header files
> included the headerfiles they needed or not.
> 
> headercheck can be used to do so.
> 
> headercheck use the existing Kbuild files in
> include/ to determine which directories to visit.
> 
> And for each directory it create one .c file for each
> .h file and build it.
> 
> A .c file looks like this:
> 
> 	$cat module.h.c
> 		#include <linux/module.h>
> 

Is it possible to check that which header files are included in source
file.

I mean how many header files are included for kernel/module.c and in
which order and we can also check that same file is requested how many
times, like:

	linux/module.h (requested count, included or not)
	+linux/list.h
	++linux/stddef.h

and so on.
		
Thanks,
--
JSR