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From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] Reduce build times
Date: Wed, 2 Nov 2011 23:53:02 -0400	[thread overview]
Message-ID: <201111022353.04321.vapier@gentoo.org> (raw)
In-Reply-To: <1320216842-29785-1-git-send-email-wd@denx.de>

On Wednesday 02 November 2011 02:54:02 Wolfgang Denk wrote:
> U-Boot Makefiles contain a number of tests for compiler features etc.
> which so far are executed again and again.  On some architectures
> (especially ARM) this results in a large number of calls to gcc.

seems to shave ~10% off for Blackfin boards
Acked-by: Mike Frysinger <vapier@gentoo.org>

> Note:  There is further potential for build time reductions by
> performing similar optimizations for a number of $(shell ...)
> constructs in the Makefiles, but I have no good ways to test these at
> the moment so this is left as exercise for the respective
> architecture maintainers (mostly blackfin and coldfire, AFAICT) -- wd

Blackfin does two $(shell), one of which i already cache.  the other, i should 
be able to send a patch for.
-mike
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      parent reply	other threads:[~2011-11-03  3:53 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-02  6:54 [U-Boot] [PATCH] Reduce build times Wolfgang Denk
2011-11-02 11:08 ` Graeme Russ
2011-11-02 12:35 ` Matthias Weißer
2011-11-02 14:49 ` Premi, Sanjeev
2011-11-02 15:37   ` Tom Rini
2011-11-02 18:20     ` Simon Glass
2011-11-02 18:57 ` Daniel Schwierzeck
2011-11-02 22:48   ` Wolfgang Denk
2011-11-03  1:33     ` Daniel Schwierzeck
2011-11-03 15:25     ` Daniel Schwierzeck
2011-11-03 19:49       ` Wolfgang Denk
2011-11-04  2:01       ` Aneesh V
2011-11-03  2:21 ` 馬克泡
2011-11-03  3:53 ` Mike Frysinger [this message]

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