Re: [Qemu-devel] linux-user: add option to intercept execve() syscalls

[Joel Holdsworth <joel.holdsworth@vcatechnology.com>]

On 30/05/16 08:52, Riku Voipio wrote:
> On Wed, May 25, 2016 at 05:07:48PM +0100, Joel Holdsworth wrote:
> Considering the messiness this serieas adds to QEMU, I do wonder how
> much of win this avoidance really is.
Suggestions on how to make it less messy would be welcome.
> If you have permissions to chroot,
> you generally have permissions to set binfmt_misc too. Alternatively
> these kind of exec manipulations are already done by external tools like
> proot and scratchbox.
True. Though I would say that's quite a convoluted solution compared to 
this patch.

The issue I encountered came when I was trying to run ARM gstreamer unit 
tests. libgstreamer runs the gst-plugin-scanner helper executable at 
startup to scan for plugins. However it took me a long time to figure 
this issue out because in the current behavior linux-user doesn't make 
it clear what qemu will run all child processes on the host even if they 
are a different arch.

Adding these patches offers the choice, and makes the situation clearer 
to the user.

> However if you are ready to stay around to maintain it, and nobody else
> objects the code, I can merge it.
I'll be around for the time being certainly.

Best Regards
Joel Holdsworth