Re: [Qemu-devel] QEMU on SPARC host - Summary and suggested vl.c PATCH

["Bochnig, Martin" <mb1x@gmx.com>]

Hi,

thank you for your valuable hints, thoughts, comments.

I hope I will manage to get things running - earlier or later.
Most of my systems are SPARC based (all except 1 PC).
Furthermore I would love to see people using QEMU on top of SPARC hw 
(both on Solaris and LinUX as well as *BSD).

I'll keep in touch with you / the ml.


Thanx,

Martin




Richard Zidlicky wrote:
> On Wed, Sep 01, 2004 at 04:57:51AM +0200, Bochnig, Martin wrote:
> 
>>(now in its own thread)
>>
>>Hi,
> 
> 
>>Now we SPARC-host users are on the horns of a dilemma: QEMU's existing 
>>SPARC support is optimized for SPARCv7 only.
>>While we are required to build for v9 / SPARC64, the build process gives 
>>tons of errors caused by invalid type definitions/invalid size castings 
>>and doesn't complete.
>>The whole sources may need to be adjusted (by a real hacker, not me).
>>I edited Makefile.target, Makefile and configure and tested several 
>>'-mcpu=' and '-m32' vs. '-m64' settings - including '-mcpu=ultrasparc 
>>-m32' which is to produce so called sparcv8plus ELF 32 binaries.
>>I tried to build statically.
>>I enabled bigendian and gprof in 'configure'.
>>The build did NEVER complete with '-mcpu=ultrasparc' - no matter how all 
>>the other variations looked like.
>>So I could never test or even tune my theoretical %tick code (BTW: The 
>>vl.o object builds fine).
>>op.o seemed to be broken and dyngen complained and was unable to 
>>generate op.h. :-((
>>
>>../dyngen -o op.h op.o
>>dyngen: ret; restore; not found at end of op_setbe_T0_subl
> 
> 
> so look at the code generated for op_setbe_T0_subl in op.o,
> eg objdump -S op.o. 
> Chances are that you have forgotten some no-reorder-block or 
> noomit-fp compiler flags. Or the instructions have been
> reordered in some new way by the compiler or some V9 specific
> opcode. Just figure out what the compiler does instead of
> "ret; restore" and strip off these instructions.
> 
> Richard
> 
>