From: "Stefan Fröberg" <stefan.froberg@petroprogram.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 9/9] firefox: GNU gnash flash, an open source Adobe Flash player & plugin
Date: Wed, 24 Oct 2012 16:43:35 +0300 [thread overview]
Message-ID: <5087F087.8010307@petroprogram.com> (raw)
In-Reply-To: <5086C8E7.6070209@mind.be>
23.10.2012 19:42, Arnout Vandecappelle kirjoitti:
> [snip]
>> Tell me Arnout, is the ARM-world really this ... complicated ?
>>
>> I mean, there at least two dozens of defconfig files for various arm
>> vendor boards under linux source tree arch/arm/config.
>> And those config-files are just for boards right ??
>>
>> Am I correct to presume that there are at least almost hundred of
>> different vendor board + arm cpu compinations that
>> are more or less incompatible with each other ?
>
> Yes, there are two reasons for that:
>
> - Unlike for PCs, there is no BIOS in embedded platforms to hide the
> board configuration. So the BSP has to be part of the kernel. That is
> partially solved with a device tree, but even so you have to select a
> device tree for your particular board.
>
> - Unlike for PowerPC, the ARM core is used by many SoC vendors who make
> completely different CPUs out of it. Since an OS is actually about
> managing everything around the CPU core itself, there's a big impact on
> the Linux kernel. That's why you'll often see SoC-specific kernel
> patches.
>
> However, this complexity shouldn't affect your use of buildroot too
> much - at least if there's a defconfig for your board available in
> U-Boot and in the kernel.
>
I just read the following:
http://www.extremetech.com/mobile/137412-linux-kernel-version-3-7-will-support-multiple-arm-socs
So it seems things are now getting more easier.
Im certainly going to upgrade to that kernel version and try if I have
better luck
this time with exonys board (basically the same stuff that those Samsung
Galaxy S II and III are using ????)
under qemu.
>
>> And in addition to that, I must take into account if the arm-cpu Im
>> cross-compiling stuff for has softfp or hardfp and the type of fp (vpf,
>> neon etc....) ?
>
> That's in fact the same on x86, only nobody uses things like
> -mfpmath=sse
> and just uses generic 387 code.
>
>
I didn't know about that optimization switch.
Maybe it will give my systems some extra boost ... :-)
Thanks!
Best Regards
Stefan
> Regards,
> Arnout
>
next prev parent reply other threads:[~2012-10-24 13:43 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-05 14:28 [Buildroot] firefox: a new package Stefan Fröberg
2012-09-05 14:28 ` [Buildroot] [PATCH 1/9] firefox: host-python dependency needs --enable-unicodedata Stefan Fröberg
2012-09-05 14:28 ` [Buildroot] [PATCH 2/9] firefox: valgrind dependency needs --enable-tls for debug build Stefan Fröberg
2012-09-11 22:04 ` Arnout Vandecappelle
2012-09-11 23:39 ` Stefan Fröberg
2012-09-13 5:49 ` Arnout Vandecappelle
2012-09-05 14:28 ` [Buildroot] [PATCH 3/9] firefox: sqlite dependency needs new compile-time options Stefan Fröberg
2012-09-11 21:51 ` Arnout Vandecappelle
2012-09-11 23:35 ` Stefan Fröberg
2012-09-05 14:28 ` [Buildroot] [PATCH 4/9] firefox: installing default extensions needs host-xmlstarlet dependency Stefan Fröberg
2012-09-05 14:29 ` [Buildroot] [PATCH 5/9] firefox: installing default extensions needs host-unzip dependency Stefan Fröberg
2012-09-11 22:24 ` Arnout Vandecappelle
2012-09-12 0:05 ` Stefan Fröberg
2012-09-13 5:56 ` Arnout Vandecappelle
2012-09-05 14:29 ` [Buildroot] [PATCH 6/9] firefox: Mozilla Web Browser Stefan Fröberg
2012-09-17 22:31 ` Arnout Vandecappelle
2012-09-18 15:48 ` Stefan Fröberg
2012-09-18 21:25 ` Arnout Vandecappelle
2012-09-19 1:39 ` Stefan Fröberg
2012-09-19 1:35 ` Stefan Fröberg
2012-09-19 6:03 ` Arnout Vandecappelle
2012-09-05 14:29 ` [Buildroot] [PATCH 7/9] firefox: GNU gnash flash plugin needs agg dependency Stefan Fröberg
2012-09-19 5:30 ` Arnout Vandecappelle
2012-09-05 14:29 ` [Buildroot] [PATCH 8/9] firefox: GNU gnash flash plugin needs gconf dependency Stefan Fröberg
2012-09-19 6:16 ` Arnout Vandecappelle
2012-09-05 14:29 ` [Buildroot] [PATCH 9/9] firefox: GNU gnash flash, an open source Adobe Flash player & plugin Stefan Fröberg
2012-10-20 15:55 ` Arnout Vandecappelle
2012-10-21 12:10 ` Stefan Fröberg
2012-10-23 16:42 ` Arnout Vandecappelle
2012-10-24 13:43 ` Stefan Fröberg [this message]
2012-10-24 20:43 ` Arnout Vandecappelle
2012-10-25 11:22 ` Stefan Fröberg
2013-05-03 22:11 ` [Buildroot] firefox: a new package Thomas Petazzoni
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