----- Original Message ----- > From: "Peter Maydell" <peter.mayd...@linaro.org> > Sent: Tuesday, November 7, 2017 9:24:35 AM
> On 7 November 2017 at 15:20, Aaron Sierra <asie...@xes-inc.com> wrote: >> I had that thought, too, as being the cleanest and simplest to implement, >> but it didn't work out as a practical solution. Having execution depend >> on the name of the file would require a lot of tuning of magics, masks, >> and interpreters in /proc/sys/fs/binfmt_misc to get the behavior that I >> depend on. It would require one entry per binary. >> >> With the implementation that I've proposed, I only need two fairly generic >> entries (ppc and ppc64) stock from Ubuntu's qemu-user-static package. >> With Docker it's trivial to bind <any_path>/qemu-ppc.e500mc to >> /usr/bin/qemu-ppc-static within the container. Which gives me complete >> control over how the container is emulated. > > If you don't need the binfmt-invokes-the-right-QEMU magic to work > out of the box, why can't you just use a wrapper script here? Because there is no mechanism to evaluate a script within the fully PowerPC container without emulation being available right from the very first instruction. I _do_ depend on the right QEMU binary being correctly mapped before launching the container. -Aaron S. > thanks > -- PMM
