From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] Am I using hardware floating? (CodeBench)
Date: Mon, 23 Sep 2013 09:28:11 +0200 [thread overview]
Message-ID: <20130923092811.0ac82091@skate> (raw)
In-Reply-To: <20130922151840.GA2804@zuhnb712>
Dear Woody Wu,
On Sun, 22 Sep 2013 23:18:40 +0800, Woody Wu wrote:
> Okay, understand. For software floating, I know there are two ways,
> one is to generating an interrupt every time a floating instruction is
> executed, which is very slow. And, another way is let the compiler to
> convert all floating calculation to a function call which implemented
> in a floating library, this method is a little faster than the
> former. My compiler is CodeBench from BR, does it have this feature
> and has it already enabled? Thank you very much.
Yes, the Sourcery CodeBench toolchain for ARM uses soft-float for its
ARMv5 multilib variant, which gets used if you select the arm926
processor type in Buildroot.
Thomas
--
Thomas Petazzoni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2013-09-23 7:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-21 15:24 [Buildroot] Am I using hardware floating? (CodeBench) Woody Wu
2013-09-22 8:37 ` Thomas Petazzoni
2013-09-22 15:18 ` Woody Wu
2013-09-23 7:28 ` Thomas Petazzoni [this message]
2013-09-24 12:48 ` Woody Wu
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