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

Use tp-glob keys when requesting for test pattern.

Add basic union test.

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: 1.4.24;
Fix static linking for the tests: -lrump is also used by -lrumpuser,
so we also need -lrump after -lrumpuser. Fixes build for sun2.

branches: 1.3.12; 1.3.22;
Move basic unionfs test from fs/union to fs/vfs and make it test
all whiteout-supporting file systems with the file system in question
as the upper layer. Also, add an unlink to the test to see if
whiteouts are really working.

ffslog_basic is the test case for PR kern/44377

xfail test for problem described in PR kern/23986

Add basic union test.

Move basic unionfs test from fs/union to fs/vfs and make it test
all whiteout-supporting file systems with the file system in question
as the upper layer. Also, add an unlink to the test to see if
whiteouts are really working.

ffslog_basic is the test case for PR kern/44377

Simplify test: there's no reason to mount 2x ffs.

Adjusts tests after import of atf-0.12:

- The use.fs property is gone.
- Mark the tests/fs/t_create:attrs test as broken when using the default
unprivileged-user:_atf setting. This probably deserves a fix somehow
but I'm not sure at this point.

atf-0.9 introduces an use.fs test-case property to allow tests to write to
their work directory. The purpose is to be able to know which tests intend
to touch the file system and to allow a minor optimization in atf-run.

Define use.fs=true for all those tests requiring it. (This highlights that
some tests currently require modifying the file system but conceptually
they shouldn't be... which leaves room for further improvements/cleanups
later :-)

Now that atf gdb/coredump conflicts have been solved (thanks jmmv!),
remove USE_ATF ifdefs.

fix !USE_ATF case

Add basic union test.

tests/fs/union/t_pr: Add another screw case.

PR kern/1677: union FS can return bogus value for lookup of `.',
causing later panic

branches: 1.13.12;
PR misc/54382: whenever open(2) is called with O_CREAT, make sure to
pass an open mode argument.

branches: 1.12.12;
Gotta mark crashes on signal separately from failures...

Mark expected failures as such.

Not exactly sure how the PRs correspond -- please fix if this is wrong!

Add failing test cases for PRs kern/2423, kern/3645, kern/4597

branches: 1.9.2;
Don't play with "../.." in includes for h_macros.h; deal with it centrally.
Minor fixes.

branches: 1.8.24;
For devices, sockets and fifos ignore setting the file size to zero to make
open(..., O_TRUNC) happy and allow them to write through the lower layer.

Fixes PR #43560 (writing to null device in unionfs fails)

Improve previous a bit more: now it works correctly in all cases
with or without xfail.

There is still room for improvement, though: with xfail the
errno != EROFS branch does not report why open failed.

enhance fail check

Remove ufs mount where not necessary due to rumpfs now supporting
VOP_WHITEOUT.

Add xfail tests for two cases described in PR kern/43560.

Replace custom xfail settings with the new expected failure support in
atf 0.10.

Test no longer fails with rev. 1.62 of src/sys/fs/union/union_vfsops.c.

xfail test for problem described in PR kern/23986