From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Felipe Castro <felipecpc1@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Soft float point
Date: Thu, 03 Sep 2009 15:01:10 +0200 [thread overview]
Message-ID: <4A9FBE16.4080703@domain.hid> (raw)
In-Reply-To: <7a15153d0909030551xbda7cb3kf600e8094606625@domain.hid>
Felipe Castro wrote:
> Hi,
>
> I'm having some problems to compile with -msoft-float. I'm using xenomai
> in a PXA270 processor.
> So to get a task with 5ms resolution for example, e need to compile with
> -msoft-float parameter right?
>
> My toolchain must be prebuilt to use a soft float point ?
> Should i recompile xenomai with -msoft-float ?
Yes hard floats are not implemented on PXA. You MUST recompile Xenomai
user-space with -msoft-float. Normally toolchains allow generating
soft-floats. But, because there is always a but:
If you do not use EABI, the whole root filesystem must be compiled with
-msoft-float. Including the glibc. With EABI, on the other hand, you can
mix soft floats and hard float code.
A lot of people use CodeSourcery toolchains on ARM. Normally, with
Xenomai 2.4.9, the latest one should work.
--
Gilles
prev parent reply other threads:[~2009-09-03 13:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-03 12:51 [Xenomai-help] Soft float point Felipe Castro
2009-09-03 13:01 ` Gilles Chanteperdrix [this message]
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