Re: [Qemu-devel] compiling on PPC does work

[C.W. Betts]

On May 26, 2008, at 11:37 AM, malc wrote:

> On Sun, 25 May 2008, C.W. Betts wrote:
>
> > Due to the fact that there is now a PowerPC tcg host, I tried to  
> > make the i386 and sparc guests.  I am building it on an Intel Mac,  
> > but I doubt that's the problem (although it took me awhile to  
> > figure out how to make PPC apps on i386 comps without using a -- 
> > build configure argument).  However, I got the following error when  
> > trying to compile the apic.c file on i386:
>
> Few notes:
>
> a. Some new optimizations commited shortly before/after ppc tcg  
> uncovered
>    a bug. The bug was fixed but the patch is not yet been commited  
> to SVN.
Other than running the application under Rosetta, I have no way of  
checking to see if it works.
> b. MacOS X is not supported.
>    (I think it has a slightly different ABI plus changes to dyngen and
>     elsewhere are needed to work with Mach O relocations. The latter
>     is essential for working with those targets that still use dyngen)
I'm using targets that don't use dyngen. Dyngen does compile for PPC  
OS X (not i386, but I don't care)
> > gcc -I. -I.. -I/Users/username/makestuff/qemu-svn/target-i386 -I/ 
> > Users/username/makestuff/qemu-svn -MMD -MP -DNEED_CPU_H - 
> > D__powerpc__ -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 - 
> > D_LARGEFILE_SOURCE -I/Users/username/makestuff/qemu-svn/tcg -I/ 
> > Users/username/makestuff/qemu-svn/tcg/ppc -I/Users/username/ 
> > makestuff/qemu-svn/fpu -DHAS_AUDIO -DHAS_AUDIO_CHOICE -I/Users/ 
> > username/makestuff/qemu-svn/slirp -Wall -O2 -g -fno-strict-aliasing  
> > -mdynamic-no-pic -m32 -arch ppc -c -o apic.o /Users/username/ 
> > makestuff/qemu-svn/hw/apic.c
> > /var/folders/zN/zNzLfd+VH20MiY73gvxNNk+++TI/-Tmp-//cc4FQRDT.s: 
> > 151:Invalid mnemonic 'bsr'
> > /var/folders/zN/zNzLfd+VH20MiY73gvxNNk+++TI/-Tmp-//cc4FQRDT.s: 
> > 1458:Invalid mnemonic 'bsf'
> > make[1]: *** [apic.o] Error 1
> > make: *** [subdir-i386-softmmu] Error 2
>
> Excerpt from apic.c
>
> #if defined(HOST_I386)
>    __asm__ __volatile__ ("bsr %1, %0\n" : "+r" (ret) : "rm" (value));
>    return ret;
> #else
>
> Apparently HOST_I386 is defined somewhere hence this optimization.
Found out what was the problem.  HOST_I386 was defined in config- 
host.h.  After changing it to HOST_PPC, everything built fine
> > The sparc platform compiled and linked without a problem, as well  
> > as the rest of the files.
>
> --
> mailto:address@hidden