Another patch to the mips64vr-elf config.

[Richard Henderson]

On Wed, Oct 16, 2002 at 12:11:34PM +0100, Richard Sandiford wrote:
> +   if ((target_flags_explicit & MASK_SOFT_FLOAT) == 0)
> +     {
> +       /* If the user didn't say whether an FPU was available, and
> + 	 we have a processor without an FPU, assume -msoft-float.
> + 	 The idea is that:
> + 
> + 	 - Any configuration can generate code for the processors
> + 	   listed here without an explicit FPU switch.
> + 
> + 	 - Configurations which default to a processor listed here can
> + 	   generate code for hard-float processors without an FPU switch,
> + 	   provided they don't include MASK_SOFT_FLOAT in the default
> + 	   target flags.  */

I think this is wrong.  In particular, I know this will cause
problems for various embedded linux targets.

The reason being that an operating system *can* provide software
emulation of the fpu in a trap handler, and yet -msoft-float changes
the parameter passing ABI, so we are no longer compatible with
the system hard-float libc.


r~