[U-Boot] [RFC][PATCH] ARMV7: Patch to fix hard float build issues

[Albert ARIBAUD]

Le 19/02/2011 14:25, Måns Rullgård a écrit :

>> So whats the reasoning to use -msoft-float as it is currently done? To
>> confuse people? ;)
>
> I guess it's there to make sure no floating-point instructions make it
> into u-boot, even though floats are not used in the code.  Perhaps
> someone was paranoid.

I think also that there is no choice but to have a float option for ARM 
C, either 'soft' or 'hard' (or 'softfp', actually, which is 'hard' with 
the 'soft' calling conventions), because the C compiler does not allow 
'no floats', and anyway the C language *requires* to have some sort of 
float support.

Actually if you don't specify any float option, the C toolchain will 
choose one, which is just the same in the end: *some* float option is 
chosen.

And since some option must be chosen, I prefer that U-Boot make the 
explicit decision, and choose soft float for the reasons I already exposed.

Amicalement,
-- 
Albert.