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Re: how to build gcc 2.95.3 for armv5

From: Daniel Jacobowitz <drow at mvista dot com>
To: gcc at gcc dot gnu dot org
Cc: Hongbo Rong <rong at mail dot capsl dot udel dot edu>
Date: Thu, 21 Aug 2003 12:23:26 -0400
Subject: Re: how to build gcc 2.95.3 for armv5
References: <Pine.GSO.4.33.0308210915440.2399-100000@dinechin.capsl.udel.edu>

On Thu, Aug 21, 2003 at 10:43:45AM -0400, Hongbo Rong wrote:
> 
> Hello,
> 
> I am building gcc 2.95.3 on a intel PXA250 board, which is ARM*
> Architecture v.5TE compliant. I got the following error related with
> floating point:
> /tmp/ccrQ3rQ6.s:12: Error: selected processor does not support `fltd
> f1,r3'
> 
> The following is the detailed info:
> 
> MontaVista Linux 3.0, Professional Edition
> Linux/armv5tel 2.4.18_mvl30-dbpxa250

Since you're havng a problem unique to MontaVista Linux, the logical
next thing to do would be to ask MontaVista support.

> ~/tmp/obj$ ../gcc-2.95.3/configure  --host=armv5tel-hardhat-linux
> --target=armv5tel-hardhat-linux --enable-shared --enable-languages=c,c++
> --enable-threads=posix --enable-__cxa_atexit --disable-multilib
> --with-float=soft

GCC 2.95.3 doesn't support --with-float=soft, which is the problem.  It
would if you were using a much more recent GCC version, or the patches
MontaVista provided with their (our) GCC to support it.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

References:
- how to build gcc 2.95.3 for armv5
  - From: Hongbo Rong

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