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

[Blue Swirl]

On 10/10/07, Fabrice Bellard <address@hidden> 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...).

True. But I hope some day we have Solaris binary execution support,
and we need this 32+64 mode for that. I think Linux can emulate
Solaris system calls.