Re: [Qemu-ppc] Configure Qemu-PPC for i386 target?

[G 3]

On Feb 21, 2017, at 10:02 AM, Jd Lyons wrote:

> > On Feb 20, 2017, at 10:23 AM, G 3 <address@hidden> wrote:
> >
> >
> > On Feb 20, 2017, at 7:39 AM, address@hidden wrote:
> > > What it the proper way to configure Qemu to make i386 target  
> > > binaries?
> >
> > I see what you want to do. The subject was a little confusing. You  
> > would do this:
> >
> > ./configure --target-list=i386-softmmu
> >
> > You could also do this:
> >
> > ./configure --target-list=ppc-softmmu,i386-softmmu
> No, I want to compile ppc-softmmu as a 32bit binary, not build it  
> as a 64bit binary. The problem is I have a my versions of pkg- 
> config seems that it doesn’t support building for 32bit binaries.

Are you able to make a 32 bit binary at all?

https://www.cyberciti.biz/tips/compile-32bit-application-using-gcc-64- 
bit-linux.html
From this page it states how to make some simple 32 and 64 bit  
applications.

Try making a file called hello.c that is just a simple "hello world"  
type of application. Then try these commands:

$ gcc -m32 -o output32 hello.c

$ gcc -m64 -o output64 hello.c

Did it work? Try using the file command to check.

$ file output32
output32: Mach-O executable ppc

When I tried the -m64 option, I saw this error message on my system:
/usr/local/Cellar/cctools/806/bin/ld: does not support 64-bit  
architecture

This is probably because I am using an old version of cctools.

>  CFLAGS='-arch i386' LDFLAGS='-arch i386' CXXFLAGS='-arch i386 ' ../ 
> qemu/configure
> C++ compiler c++ does not work with C compiler cc
> Disabling C++ specific optional code
>
> ERROR: sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T.
>        You probably need to set PKG_CONFIG_LIBDIR
>        to point to the right pkg-config files for your
>        build target
>
> I can’t seem to find any info on how to set pkg-config to compile  
> for i386?

You might have to rebuild pkg-config for 32 bit support. The homebrew  
package manager might be of help to you here. It will deal with all  
the dependencies for you.

> The code I borrowed from PCem will only build as i386 target on OS  
> X, so I was hoping that was the trouble I was having.

Does PCem build on x86-64? If it does then maybe the architecture of  
your host processor isn't the problem.

> > > make: *** [subdir-ppc64-softmmu] Error 2
> > >
> > > I?m not sure if it?s an issue where I need to build my code  
> > > changes to be i386, but I?m trying to pin down the problem.
> >
> > Most likely these are functions or variables that are not defined  
> > in QEMU. Maybe you are missing a header file.
>
> I included all the header files the PCem called for to build this  
> code, otherwise it would not make, it would tell me that something  
> was undefined before it built the via-pci.o. I wish that were the  
> problem, because it would tell me where to look for these undefined  
> symbols, right now I’m at a loss, and the only thing I can figure  
> is I must need to build for an i386 target.


I suggest contacting the people involved with PCem. Their experience  
might include this very problem.