Re: [Qemu-devel] RFC: fix run of 32 bits Linux executables on 64 bits targets

[Thiemo Seufer]

Fabrice Bellard wrote:
> J. Mayer wrote:
>> Following the patches done for elfload32, it appeared to me that there
>> were still problems that would prevent 32 bits executables to run on 64
>> bits target in linux user mode emulation.
> > [...]
>
> Are you sure it is a good idea to try to add 32 bit executable support to a 
> 64 bit target ? In the end you will need to write a 64 bit to 32 bit linux 
> syscall converter which would mean duplicating all the linux-user code of 
> the corresponding 32 bit target (think of ioctls with strutures, signals 
> frames, etc...).

I would think this feature will be limited to platforms which can handle
32bit and 64bit binaries with a single personality.


Thiemo