Re: [arm-gnu] Mixing code from RVCT / VFP attributes

[Christophe LYON <christophe.lyon@xxxxxx>]

On 23.04.2010 17:56, Daniel Jacobowitz wrote:
> On Fri, Apr 23, 2010 at 05:47:41PM +0200, Christophe LYON wrote:
> > On 23.04.2010 15:11, Daniel Jacobowitz wrote:
> > > On Fri, Apr 23, 2010 at 10:49:40AM +0200, Christophe LYON wrote:
> > > > > You need either --fpu=VFPv3+SoftVFP or -mfloat-abi=hard.
> > > >
> > > > I still get the same error.
> > >
> > > In that case, you'll have to be more specific (complete command
> > > lines).
> >
> > Well, the object files are compiled with:
> >
> > armcc --wchar32 --library_interface=aeabi_clib -g --cpu=cortex-a9 -c
> > f1.c -o f1.o
> >
> > (armcc is 4.0 build 650 if it matters)
> >
> > and the link command is:
> > arm-2009q3-68-arm-none-eabi/bin/arm-none-eabi-gcc f1.o -o f.u
> > -Tgeneric-hosted.ld -mcpu=cortex-a9 -mfpu=vfp -mfloat-abi=hard
> > --fpu=VFPv3+SoftVFP
>
> Well, first of all, --fpu is the RealView option.  Sorry, I thought
> that was obvious.

Well... as gcc did not complain I thought it was a new option I didn't 
know ;-)
For the record, the actual RealView option is --fpu=SoftVFP+VFPv3 (in 
the other order, it gives an error)


> Also, Lite Edition does not -mfloat-abi=hard libraries.  That's the
> source of your immediate error.

Well, the link seems to succeed (it produces an executable with no 
warning/error)

Thanks for your help.

Christophe.