PR/55102: Kamil Rytarowski: Duplicate fifo_vnodeop_entries,
fifo_vnodeop_opv_desc symbols.

Many filesystems ffs, lfs, ulfs, chfs, ext2fs etc. use fifofs
internally for their fifo vnops. NFS does too, but it also needs
networking anyway. Unfortunately fifofs brings in a lot of the
networking code so that the rumpkernel is not well partition. In
addition the fifo code is rarely used.

The existing hack depended on duplicating the above symbols and
adding minimal functionality for the majority of the the tests
(except the ffs and the puffs one). In these two cases both symbols
were loaded and the symbol sizes clashed which broke the sanitizers.
While this can be fixed with weak symbols and other kinds of
indirection, it is more straight forward to select between the
minimal and the full fifofs implementation by introducing a new
shared library librumpvfs_nofifofs.

Centralize the base rump libraries into a variable used by all the other
Makefiles so that we can make changes to it centrally as needed and have
less mess. Fixes the sun2 build that needs rumpvfs after librump after
the latest changes.

branches: 1.14.24;
Fix static linking for the tests: -lrump is also used by -lrumpuser,
so we also need -lrump after -lrumpuser. Fixes build for sun2.

branches: 1.13.12; 1.13.22;
Remove accidentally committed part (which I need to run these tests
for a -current rump kernel on NetBSD 5.1)

Add test case for problem described by yamt in PR kern/44086.
"large writes with PUFFS_KFLAG_NOCACHE_PAGE ends up with EIO"

Fuzztest puffs mount. There are n different levels of testing:
each one pours more and more sane garbage into the args to that
the mount progresses further and further. Level 8 (at least when
writing this comment) should be the one where mounting actually
succeeds.

Our metric of success is crash / no crash.

Fold the puffs private and vfs tests mount/unmount routines together.
To achieve this, add a file system private parameter to the newfs
method (which will obviously not be used by vfs tests).

njoly ok

Get rid of static Atffiles and let bsd.test.mk generate them on the fly.

put stuff requiring -lpuffs behind -DPUFFSDUMP

WARNS=2

Add some basic tests for inactive/reclaim. To make this possible,
adjust the read/write shovel threads so, that we can tap into the
operations between puffs(9) and the file server.

Add test cases for file servers which present the root node not as
a directory but as a regular file, symbolic link (although that
can't be unmounted without killing the server!), fifo or character
device.

Add the most basic test for puffs(dtfs): mount/unmount. There's
still a lot of work to do here, but I want to get to testbuilding
the tree ;)

TODO examples:
* integrate this with rump_syspuffs (and remove the stupid ``sys'' from there)
* integrate with njoly's fs-independent tests
* cleanup a lot
* write more tests

*sigh*, I wish we'd had testing tools like this 5 years ago when
I was writing puffs. It would have made a lot of things a lot
better and a lot easier.

Move tests psshfs from fs/puffs to fs/psshfs. The former is going
to be populated by tests which actually test puffs soon.

jmmv ok

branches: 1.2.2;
Install the data files.

Beleatedly add some regression tests for a couple of problems I found in
psshfs and that pooka@ already fixed a while ago. These were rather tricky
to get working.