ARM linux mailing lists FAQ about floating point support.

[Nicolas Pitre]

On Thu, 10 Sep 2009, Gilles Chanteperdrix wrote:

> Right, it does not work, so, what does:
> "Allows the mixing of softfloat and hardfloat code"
> 
> is supposed to mean here for instance:
> http://www.eurotech-inc.com/embedded-eabi-linux.asp

As I just posted, it looks like gcc only implemented the soft-float ABI 
when using VFP.  So if your CPU is VFP capable then using 
-mfloat-abi=softfp should produce actual VFP instructions while still 
passing function arguments around using non VFP registers.


Nicolas