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Re: [PATCH] linux-user: manage binfmt-misc preserve-arg[0] flag

From: John Paul Adrian Glaubitz
Subject: Re: [PATCH] linux-user: manage binfmt-misc preserve-arg[0] flag
Date: Mon, 22 Feb 2021 16:09:11 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1

On 2/22/21 3:58 PM, Michael Tokarev wrote:
> 22.02.2021 17:54, John Paul Adrian Glaubitz wrote:
>> OK, gotcha. Is it supposed to work with systemd-binfmt? It looks like it 
>> depends
>> on the old binfmt-support package.
> the qemu 4-line patch does not depend on any particular system, it relies on a
> special name of its own argv[0] when registering the binfmt entry.  In order 
> to
> utilize it, we create a special-named symlink to qemu-foo and register that 
> one
> with the binfmt-misc subsystem, no matter if it is systemd or binfmt-support 
> or
> whatever else.

OK, I was wondering this because qemu-user-static still pulls in the 

root@epyc:~> apt install qemu-user-static 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following additional packages will be installed:
The following NEW packages will be installed:
  binfmt-support qemu-user-static
0 upgraded, 2 newly installed, 0 to remove and 2 not upgraded.

Other distributions such as Fedora have already switched to systemd-binfmt.


 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

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