On Tue, Mar 02, 2021 at 04:02:22PM +0800, YunQiang Su wrote:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h... This patch can be apply to 5.10 and 5.11 directly.

binfmt_misc: pass binfmt_misc flags to the interpreter

It can be useful to the interpreter to know which flags are in use.

For instance, knowing if the preserve-argv[0] is in use would allow to skip the pathname argument.

This patch uses an unused auxiliary vector, AT_FLAGS, to add a flag to inform interpreter if the preserve-argv[0] is enabled.

Note by Helge Deller: The real-world user of this patch is qemu-user, which needs to know if it has to preserve the argv[0]. See Debian bug #970460.

Signed-off-by: Laurent Vivier laurent@vivier.eu Reviewed-by: YunQiang Su ysu@wavecomp.com URL: http://bugs.debian.org/970460 Signed-off-by: Helge Deller deller@gmx.de

This feels like a new feature, how does it fit with the stable kernel rules?

thanks,

greg k-h