Bug#1081850: qemu-arm64: can't run busybox:arm64 on s390x: Invalid note in PT_GNU_PROPERTY

Package: qemu-user
Version: 1:9.0.2+ds-2+b1
Severity: normal
User: [email protected]
Usertags: s390x
X-Debbugs-Cc: [email protected]

The new cross-exe-wrapper package in src:architecture-properties runs
binaries from a foreign architecture, either directly or via qemu-user.
Its autopkgtest uses busybox from each release architecture (specifically
the `busybox true` and `busybox echo` applets) as a smoke-test to see
whether this works as intended.

On s390x, the result indicates that the qemu-arm64 in qemu-user:s390x
can't run busybox:arm64:

>  74s qemu-arm64: /usr/bin/busybox: Invalid note in PT_GNU_PROPERTY

I don't know whether this is specific to busybox, or whether the qemu-arm64
in qemu-user:s390x doesn't work more generally.

architecture-properties (>= 0.2.2) works around this by skipping its
self-test on architecture pairs where qemu-$arch doesn't run successfully.

    smcv