From: Michal Marek <mmarek@suse.cz>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org,
Andi Kleen <ak@linux.intel.com>
Subject: Re: [PATCH] Kbuild: Disable var tracking with CONFIG_DEBUG_INFO_REDUCED
Date: Fri, 22 Feb 2013 13:47:31 +0100 [thread overview]
Message-ID: <20130222124730.GI12402@pobox.suse.cz> (raw)
In-Reply-To: <1360274320-26833-1-git-send-email-andi@firstfloor.org>
On Thu, Feb 07, 2013 at 01:58:40PM -0800, Andi Kleen wrote:
> From: Andi Kleen <ak@linux.intel.com>
>
> Newer gcc enables the var-tracking pass with -g to keep track which
> registers contain which variables. This is one of the slower passes in gcc.
>
> With reduced debug info (aimed at objdump -S, but not using a full debugger)
> we don't need this fine grained tracking. But it was still enabled
> because -g was enabled. Disable it explicitely for DEBUG_INFO_REDUCED.
Applied to kbuild.git#kbuild, thanks.
Michal
prev parent reply other threads:[~2013-02-22 12:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-07 21:58 Andi Kleen
2013-02-22 12:47 ` Michal Marek [this message]
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