From: Daniel Jacobowitz <dan@debian.org>
To: Rajesh Palani <rpalani2@yahoo.com>
Cc: linux-mips@linux-mips.org
Subject: Re: SoftFloat implementation for MIPS in GCC
Date: Wed, 28 Jan 2004 14:33:55 -0500 [thread overview]
Message-ID: <20040128193355.GA14318@nevyn.them.org> (raw)
In-Reply-To: <20040128192636.32578.qmail@web21603.mail.yahoo.com>
On Wed, Jan 28, 2004 at 11:26:36AM -0800, Rajesh Palani wrote:
> Hi,
>
> We are using a gcc 2.96 20000731 (Red Hat Linux 7.1 2.96-99.1) GCC cross-compiler with -msoftfloat to use software floating point routines.
>
> When we profied an application using the Linux Trace Toolkit, we observed that there were a lot of CpU (Co-processor unusable) exceptions. Some of the floating point routines ( eg. __floatdidf) expect values to be passed in floating point registers and take FP exceptions even though the application has been built with -msoftfloat. Is this a general MIPS/GCC issue? What is the status of softfloat for MIPS in GCC?
Try a more recent compiler, that one is ancient. If you configure
correctly, you should get no references to the floating point registers
at all.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer
next prev parent reply other threads:[~2004-01-28 19:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-28 19:26 SoftFloat implementation for MIPS in GCC Rajesh Palani
2004-01-28 19:33 ` Daniel Jacobowitz [this message]
2004-01-28 19:53 ` Jun Sun
2004-01-28 19:57 ` David Daney
2004-01-28 20:00 ` Daniel Jacobowitz
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