linux-kernel - Re: [tip:x86/urgent] x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk

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Date:	Thu, 17 Dec 2009 19:04:32 -0500
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, tglx@...utronix.de, mhiramat@...hat.com,
	mingo@...e.hu
CC:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:x86/urgent] x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk

Hi,

tip-bot for akpm@...ux-foundation.org wrote:
> Commit-ID:  8c63450718ea62ee3a70bffde170b4d15fc72d3c
> Gitweb:     http://git.kernel.org/tip/8c63450718ea62ee3a70bffde170b4d15fc72d3c
> Author:     akpm@...ux-foundation.org <akpm@...ux-foundation.org>
> AuthorDate: Thu, 17 Dec 2009 15:26:36 -0800
> Committer:  H. Peter Anvin <hpa@...or.com>
> CommitDate: Thu, 17 Dec 2009 15:34:29 -0800
> 
> x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk
> 
> It says
> 
> Warning: objdump version  is older than 2.19
> Warning: Skipping posttest.
> 
> because it used the wrong field from `objdump -v':
> 
> akpm:/usr/src/25> /opt/crosstool/gcc-4.0.2-glibc-2.3.6/x86_64-unknown-linux-gnu/bin/x86_64-unknown-linux-gnu-objdump -v
> GNU objdump 2.16.1
> Copyright 2005 Free Software Foundation, Inc.
> This program is free software; you may redistribute it under the terms of
> the GNU General Public License.  This program has absolutely no warranty.


Oh, I didn't know that.
On my environment, objdump shows version in below format.
---
$ objdump -v
GNU objdump version 2.19.51.0.14-1.fc11 20090722
Copyright 2008 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
---

Hmm, maybe, we need to check if ($3 == "version") to decide
which argument we should use.

Thank you,


> 
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ingo Molnar <mingo@...e.hu>
> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> LKML-Reference: <200912172326.nBHNQaQl024796@...p1.linux-foundation.org>
> Signed-off-by: H. Peter Anvin <hpa@...or.com>
> Cc: Masami Hiramatsu <mhiramat@...hat.com>
> ---
>  arch/x86/tools/chkobjdump.awk |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/x86/tools/chkobjdump.awk b/arch/x86/tools/chkobjdump.awk
> index 0d13cd9..5bbb5a3 100644
> --- a/arch/x86/tools/chkobjdump.awk
> +++ b/arch/x86/tools/chkobjdump.awk
> @@ -9,7 +9,7 @@ BEGIN {
>  }
>  
>  /^GNU/ {
> -	split($4, ver, ".");
> +	split($3, ver, ".");
>  	if (ver[1] > od_ver ||
>  	    (ver[1] == od_ver && ver[2] >= od_sver)) {
>  		exit 1;
> --
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-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhiramat@...hat.com

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