Re: [PATCH v13 0/3] Add kernel seccomp support for m68k

[Michael Schmitz <schmitzmic@xxxxxxxxx>]

Hi Adrian,

Am 16.01.2023 um 22:12 schrieb John Paul Adrian Glaubitz:
> Hi Michael!
>
> On 1/14/23 01:00, Michael Schmitz wrote:
> > > Unfortunately, libseccomp fails to build after I updated the
> > > syscalls.csv file
> > > after adding m68k support. It seems that the problem are a number of
> > > syscalls
> > > that exist on m68k only:
> > >
> > >   CC       libseccomp_la-syscalls.perf.lo
> > > syscalls.perf:152:70: error: '__PNR_getpagesize' undeclared here (not in
> > > a function)
> > >   152 |
> > > getpagesize,119,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,166,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF,__PNR_getpagesize,SCMP_KV_UNDEF
> >
> > That one also exists on alpha and sparc. The other two are indeed
> > unique to m68k.
> >
> > There must have been other cases of novel syscalls added to libseccomp
> > before?
>
> Neither alpha nor sparc are supported by libseccomp, so I think that's
> not an argument.

Explains why getpagesize still is not handled by libseccomp, then.

Now do any of the other architectures recently added to libseccomp have 
non-standard syscalls? (Trying to work out what commits might hold the 
secret to adding support for new syscalls...)

Cheers,

	Michael

> Adrian