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Floating point Hardware/emulation for ARM7TDMI


 Hi,

I am using gcc 3.4.3 from gnuarm.net,  and the latest ECOS tree,  and am
having a problem when I execute the MAKE for my "hello world" project.

I get an error showing the libtarget.a uses hardware FP whereas basic1
uses software FP.

I can find nowhere in the eCOS configuration to specify use of the
software FP when building the libtarget.a during the ECOS build.

Can anyone provide some insight on this.

Mark Steinmetz

-----Original Message-----
From: Steinmetz, Mark 
Sent: Tuesday, August 01, 2006 10:38 AM
To: 'Gary Thomas'
Cc: ecos-discuss@sources.redhat.com
Subject: RE: [ECOS] FW: GCC 3.4.3 on ARM7TDMI problem

I have gcc 3.4.3 from gnuarm.net --- I downloaded the binaries.

For ECOS, I am likely out of date since I have been using a book by
Anthony Massa (and associated software) as my "ECOS FOR DUMMIES".

I will get the latest tree.

Thanks!



 

-----Original Message-----
From: Gary Thomas [mailto:gary@mlbassoc.com]
Sent: Tuesday, August 01, 2006 10:17 AM
To: Steinmetz, Mark
Cc: ecos-discuss@sources.redhat.com
Subject: Re: [ECOS] FW: GCC 3.4.3 on ARM7TDMI problem

msteinme@avtron.com wrote:
> Hi,
> 
> I have seen several people that are successfully using GCC 3.4.3 on 
> ARM7TDMI.  I am wondering how they resolved the "unrecognized command
> line option -finit-priority" problem that kills my build of ECOS.   I
> had been using gcc 3.2.1 but appear to be having problems with the
> 3.2.1 gcc generating some bogus code when making a call to a function 
> via a pointer contained in a structure.

The latest tree (from anonymous CVS) does not allow this option.

Are you using the CVS tree?

--
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------


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