Re: [Qemu-devel] qemu ELF Loader Kernel integration

[Valtteri Rahkonen]

On Thu, 31 Mar 2005, PhilippGühring wrote:
> Hi,
>
> Is it possible to integrate qemu(-ppc) into the Linux kernel, so that when a
> program tries to start a Linux-ELF-ppc executable, that qemu is being used to
> start it normally?

Yes, see binfmt_misc (kernel support for misc binaries).

> It would be useful for embedded systems development for cross-compilation:
> The resulting binaries could be tried natively on the development system.
> If I would do it manually, I could start
> qemu-ppc binary
> But in some enviroments, the binary is started automatically by a third-party
> product, therefore being able to launch the binary directly would be helpful.

If you have a binfmt_misc compiled to your kernel and you have registered 
qemu as a ppc interpreter then qemu will be started automatically when 
executing the ppc binaries. You will need to register qemu as your 
interprer in proc interface (/proc/sys/fs/binfmt_misc/register).

--
Valtteri Rahkonen