Re: [Qemu-devel] Compile errors on Solaris for qemu 0.8.2

[Blue Swirl]

> I ran into this myself yesterday.  I couldn't figure out a definitive
> answer, because I am no expert on the SPARC architecture, but it appears
> that at least on an UltraSparc IIi machine from a few years ago, the
> "sparc V9" instructions are supported.  However, the gcc by default
> doesn't define __sparc_v9__ on that architecture.  There are some -m
> flags that can be passed to gcc (like multisparc, etc.), but I'm not
> sure for what host machines they are appropriate exactly.  Perhaps the
> SPARC experts on the list can comment more, but in the meantime, the
> following simple (but likely incorrect) patch worked fine for me:

Well, at least my gcc defines __sparc_v9__ if cpu is either v9, ultrasparc 
or ultrasparc3:
%{mcpu=v9:-D__sparc_v9__} %{mcpu=ultrasparc:-D__sparc_v9__} 
%{mcpu=ultrasparc3:-D__sparc_v9__}

This is from /usr/lib/gcc-lib/sparc-linux/3.3.5/specs. What does your 
compiler define, as you still can compile the RDTICK instruction in the 
#ifdef section? RDTICK is not available on V8 (Sparc32) architecture, only 
on V9.

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