linux-kernel - Re: [PATCH 2/7] x86: Add an option to compile with -ffunction-sections -fdata-sections

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Date:	Wed, 4 Feb 2009 21:28:58 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Anders Kaseorg <andersk@....edu>
Cc:	Jeff Arnold <jbarnold@....edu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Tim Abbott <tabbott@....edu>, Waseem Daher <wdaher@....edu>,
	Nikanth Karthikesan <knikanth@...e.de>
Subject: Re: [PATCH 2/7] x86: Add an option to compile with -ffunction-sections -fdata-sections

On Wednesday 04 February 2009 20:56:04 Anders Kaseorg wrote:
> The conflict is that FUNCTION_TRACER enables KBUILD_CFLAGS += -pg, and 
> passing -pg to current gcc causes it to emit a warning and disable 
> -ffunction-sections:
>   <http://gcc.gnu.org/ml/gcc-help/2008-11/msg00128.html>

Ah, OK, this explanation should probably be in a paragraph in the Kconfig
help message, rather than hiding on lkml.

Otherwise, updated looks good.

Thanks,
Rusty.
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