From: David Daney <ddaney@avtrex.com>
To: Matej Kupljen <matej.kupljen@ultra.si>
Cc: linux-mips@linux-mips.org
Subject: Re: MIPS SF toolchain
Date: Wed, 07 Sep 2005 08:33:36 -0700 [thread overview]
Message-ID: <431F0850.8090804@avtrex.com> (raw)
In-Reply-To: <1126098584.12696.19.camel@localhost.localdomain>
Matej Kupljen wrote:
> Hi
>
> Can somebody tell me, what is the right way to make a soft float
> toolchain. I tried with crosstool with different flags for configure
> and gcc, but the resulting binaries still contains the FP instructions,
> like swc1.
>
> I used --with-float=soft and --nfp for gcc configure,
> --without-fp for glibc configure, and compiled glibc
> with -msoft-float flag.
>
> Am I missing something, or am I using the wrong flags?
>
> GCC: 3.3.5
> GLIBC: 2.3.5
> BINUTILS: 2.15
On gcc 3.3.x --with-float=soft does nothing. If you are using a MIPS32
ISA processor you can configure it with --target=mipsisa32[el]-linux to
get soft float and MIPS32 ISA by default.
But even better would be to use gcc 3.4.x or 4.0.x where
--with-float=soft works. I would also recommend binutils 2.16.1 or
above as there are some severe bugs in the mips linker in earlier versions.
David Daney.
next prev parent reply other threads:[~2005-09-07 15:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-07 13:09 MIPS SF toolchain Matej Kupljen
2005-09-07 13:54 ` sjhill
2005-09-07 15:33 ` David Daney [this message]
2005-09-08 8:41 ` Matej Kupljen
2005-09-08 11:33 ` Matej Kupljen
2005-09-08 12:22 ` Matej Kupljen
2005-09-08 12:29 ` Ralf Baechle
2005-09-08 13:48 ` Dan Kegel
2005-09-08 15:29 ` David Daney
2005-09-09 6:48 ` Matej Kupljen
2005-09-09 15:20 ` David Daney
2005-09-12 7:33 ` Matej Kupljen
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