Re: [Qemu-devel] [PATCH] Sparc64 host support update: i386-user builds

[Paul Brook]

> I got the i386-user to build by moving the troublesome SSE ops to helper
> (only for Sparc32/64, no effect at least to x86 host). The emulator crashes
> when executing the first TB, code generation and register use could be
> suspected. The patch makes ops_sse.h more confusing to read. Any comments?

Requiring that ops don't use a stack frame doesn't seem like a realistic 
constraint.

> The remaining target specific problem with PPC FPU ops could be solved by
> changing PPC to soft float. Would that be OK?

The use of soft-float should be a host decision, not a target decision.

All targets should be converted to use the softfloat.h interface. Hosts can 
then choose to use with the softfloat library or the native implementation 
depending on the host FP capabilities.

Paul