Re: [Qemu-devel] [PATCH] linux-user/main.c: Always set QEMU_LD_PREFIX when interp_prefix is changed

[Peter Maydell]

On 10 September 2015 at 06:43,  <address@hidden> wrote:
> From: Chen Gang <address@hidden>
>
> If qemu sets interp_prfix via command line '-L' instead of environments
> variable QEMU_LD_PREFIX, it will cause syscall execve() failed. Because
> the 2nd qemu has no command line '-L'.
>
> So qemu need always set QEMU_LD_PREFIX when interp_prefix is changed.

I think this is user error. If you want exec to work automatically
onto a second QEMU then you need to set up binfmt misc with a
wrapper and probably the environment variables. I don't
think we need to turn all our command line switches into
environment variables: they're not supposed to be somehow
magically inherited by child QEMU processes.

thanks
-- PMM