Comment 17 for bug 1877633

Verified on focal using the following procedure - full log attached as well:

# install seccomp
$ apt install seccomp

# try resolving getrlimit for aarch64
$ scmp_sys_resolver -a aarch64 getrlimit
-10180

# on the current focal version this fails to resolve correctly and returns -10180

# enable -proposed
$ cat <<EOF >/etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list
# Enable Ubuntu proposed archive
deb http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs)-proposed restricted main multiverse universe
EOF

# update libseccomp2 and seccomp from -proposed
$ apt install seccomp/$(lsb_release -cs)-proposed libseccomp2/$(lsb_release -cs)-proposed

# verify the installed version number is as expected from -proposed
$ dpkg -l seccomp libseccomp2

# try resolving getrlimit on aarch64 again
$ scmp_sys_resolver -a aarch64 getrlimit
163