Re: absolute firmware path made relocatable in qemu 5.2.0

[Dave]

This is my qemu binary compiled with --prefix=/nonexistent


bash-5.1# ./qemu-system-x86_64 -L help
/usr/share/qemu
/usr/share/qemu-firmware
/usr/src/sources/qemu-5.2.0/build/pc-bios

bash-5.1# ./qemu-system-x86_64 --help|grep helper

[,br=bridge][,helper=helper][,sndbuf=nbytes][,vnet_hdr=on|off][,vhost=on|off]
                use network helper 'helper' 
(default=/nonexistent/libexec/qemu-bridge-helper) to
-netdev bridge,id=str[,br=bridge][,helper=helper]
                using the program 'helper 
(default=/nonexistent/libexec/qemu-bridge-helper)

See that it will call /nonexistent/libexec/qemu-bridge-helper by default.

Dave

On 12/01/2021 23:53, Paolo Bonzini wrote:
> On 12/01/21 18:04, Dave wrote:
> > Thanks Paola,
> >
> > We are still in testing and that's the only thing we've uncovered so 
> > far with the new 5.2.0. I will post if the ops guys find anything else.
>
> Hmm, that's weird though.  The path to the default bridge helper is 
> relocated:
>
> net/tap.c:        helper = default_helper = 
> get_relocated_path(DEFAULT_BRIDGE_HELPER);
>
> Paolo