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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] ARM cores
Date: Mon, 24 Jan 2011 16:57:11 +0100	[thread overview]
Message-ID: <20110124165711.381989cf@surf> (raw)
In-Reply-To: <87lj2ahe4y.fsf@macbook.be.48ers.dk>

Hello,

On Mon, 24 Jan 2011 09:58:21 +0100
Peter Korsgaard <jacmet@uclibc.org> wrote:

> Thinking a bit more about it - For the omap3 stuff, they are all with
> A8 cores, so we could even do 'depends on BR2_cortex_a8', right?

Besides those OMAP-specific packages, there are also other packages
that could depend on CPU-specific features.

For example, some video decoders have specific code to use NEON
instructions, but those instructions are not available on Cortex-A8
cores for example.

Should we go all the way down to specifying the particular CPU the user
is going to use (OMAP3, OMAP4, etc.) and then select the appropriate
mtune/march according to this, show/hide packages according to this,
and tune specifically some packages according to this ?

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

  reply	other threads:[~2011-01-24 15:57 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-23 22:41 [Buildroot] [PATCH 3rd RESEND 0/6] GStreamer patches, and TI OMAP3 DSP stuff Felipe Contreras
2011-01-23 22:41 ` [Buildroot] [PATCH 3rd RESEND 1/6] gstreamer: remove unnecessary feature Felipe Contreras
2011-01-24  8:42   ` Peter Korsgaard
2011-01-23 22:41 ` [Buildroot] [PATCH 3rd RESEND 2/6] Fix gstreamer packages for make 3.82 Felipe Contreras
2011-01-24  8:39   ` Peter Korsgaard
2011-01-25  2:51     ` Felipe Contreras
2011-01-25  9:01       ` Peter Korsgaard
2011-01-23 22:41 ` [Buildroot] [PATCH 3rd RESEND 3/6] Add tidsp-binaries package Felipe Contreras
2011-01-24  8:53   ` Peter Korsgaard
2011-01-23 22:41 ` [Buildroot] [PATCH 3rd RESEND 4/6] Add gst-dsp package Felipe Contreras
2011-01-24  8:54   ` Peter Korsgaard
2011-01-23 22:41 ` [Buildroot] [PATCH 3rd RESEND 5/6] Add dsp-tools package Felipe Contreras
2011-01-24  8:54   ` Peter Korsgaard
2011-01-23 22:41 ` [Buildroot] [PATCH 3rd RESEND 6/6] Add gst-omapfb package Felipe Contreras
2011-01-24  8:58   ` Peter Korsgaard
2011-01-24 15:57     ` Thomas Petazzoni [this message]
2011-01-24 16:03       ` [Buildroot] ARM cores Peter Korsgaard
2011-01-24 17:04         ` Thomas Petazzoni
2011-01-24 20:06           ` Peter Korsgaard
2011-01-24 16:08       ` Eric BENARD
2011-01-24 17:08         ` Thomas Petazzoni
2011-01-25  2:55     ` [Buildroot] [PATCH 3rd RESEND 6/6] Add gst-omapfb package Felipe Contreras
2011-01-25  9:02       ` Peter Korsgaard

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