linux-kernel - Re: [PATCH] ftrace: handle generic arch calls

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Date:	Fri, 24 Oct 2008 11:05:25 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Sam Ravnborg <sam@...nborg.org>, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] ftrace: handle generic arch calls

On Tue, Oct 21, 2008 at 09:35:26AM -0400, Steven Rostedt wrote:
> 
> The recordmcount script requires that the actual arch is passed in.
> This works well when ARCH=i386 or ARCH=x86_64 but does not handle the
> case of ARCH=x86.
> 
> This patch adds a parameter to the function to pass in the number of
> bits of the architecture. So that it can determine if x86 should be
> run for x86_64 or i386 archs.
>...
> --- linux-compile.git.orig/scripts/recordmcount.pl	2008-10-21 09:25:45.000000000 -0400
> +++ linux-compile.git/scripts/recordmcount.pl	2008-10-21 09:28:36.000000000 -0400
>...
> @@ -129,6 +130,14 @@ my $function_regex;	# Find the name of a
>  			#    (return offset and func name)
>  my $mcount_regex;	# Find the call site to mcount (return offset)
>  
> +if ($arch eq "x86") {
> +    if ($bits == 64) {
> +	$arch = "x86_64";
> +    } else {
> +	$arch = "xi386";
>...

After fixing the obvious typo here the 32bit build worked for me.

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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