linux-kernel - Re: [PATCH 0/4] Compile kernel with -fwhole-program --combine

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Message-Id: <1156764076.5340.75.camel@pmac.infradead.org>
Date:	Mon, 28 Aug 2006 12:21:16 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Helge Hafting <helge.hafting@...el.hist.no>
Cc:	Rob Landley <rob@...dley.net>, linux-kernel@...r.kernel.org,
	linux-tiny@...enic.com, devel@...top.org
Subject: Re: [PATCH 0/4] Compile kernel with -fwhole-program --combine

On Mon, 2006-08-28 at 12:52 +0200, Helge Hafting wrote:
> And a "make optImage" (optimized image) when building a
> kernel for production use, when you believe compiling every file
> and spending lots of extra time is worth it. 

If we revamp the entire kbuild infrastructure to allow building the
_whole_ kernel with --combine then I might be inclined to agree -- we
could do that instead of a CONFIG_COMBINED_COMPILE option.

But if, as I suggest, we're doing the simple option which combines only
the files which tend to get most benefit from it -- those which are in
the same directory -- then there's not a lot of point in the separate
target. It really doesn't take that much extra time.

-- 
dwmw2

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