Import atf-0.21:

Released on October 23rd, 2014.

* Restored the atf(7) manual page to serve as a reference to all the other
  manual pages shipped by ATF.

* Added the -s flag to atf-sh to support specifying the shell interpreter
  to be used.

* Removed ATF_WORKDIR.  The only remaining consumers have been converted to
  use the standard TMPDIR environment variable.  As a benefit, and because
  Kyua forces the TMPDIR to live within the test case's work directory,
  any stale files left behind by ATF will be automatically cleaned up.

* Documented the environment variables recognized by each component in the
  relevant manual pages.  This information was lost with the atf-config(1)
  removal.

* Added a new "require.diskspace" metadata property to test cases so that
  they can specify the minimum amount of disk space required for the test
  to run.

* Renamed the atf-{c,c++,sh}-api(3) manual pages to atf-{c,c++,sh}(3) for
  discoverability purposes.  Symbolic links are provided for the time
  being to still make the old names visible.

* Issue #5: Recommend the (expected, actual) idiom for calls to the test
  macros in the manual pages.

* Issue #7: Stopped catching unhandled exceptions in atf-c++ tests.  This
  propagates the crash to the caller, which in turn allows it to obtain
  proper debugging information.  In particular, Kyua should now be able to
  extract a stacktrace pinpointing the problem.

* Issue #8: Fixed atf-c/macros_test:use test failures spotted by the clang
  that ships with FreeBSD 11.0-CURRENT.

* Issue #12: Improved documentation of atf-sh(3) and atf-check(1) by better
  explaining how they relate to each other.

* Issue #14: Stopped setting 'set -e' in atf-sh.  This setting was
  initially added as a way to enable a "strict" mode in the library and to
  make test cases fail fast when they run unprotected commands.  However,
  doing so in the library is surprising as the responsibility of enabling
  'set -e' should be on the user's code.  Also, 'set -e' introduces
  inconsistent behavior on subshells and users do not expect that.

* Issue #15: Fixed atf_utils_{fork,wait} to support nested calls.

* Issue #16: Fixed test failures (by removing a long-standing hack) on
  systems that lack \e support in printf(1).

* Issue #19: Removed stale references to atf-config and atf-run.
<sys/param.h> is a superset of <sys/types.h> and must always come
first.  Coincidentally, today is the 11th anniversary of this man
page's (and this bug's) first appearance in FreeBSD.

MFC after:	3 days
Don't zero the stats before they are read out.

MFC after: 3 days
Fix the build of non-FDT systems by moving the gpiobusvar.h header outside
the FDT #ifdef.

While here remove a few unused headers.
Move the definitions of the fdt functions from a uboot header to a new fdt
header. There is nothing in the fdt spec that ties it to U-Boot.

While here sort and fix the signature of fdt_setup_fdtp.

MFC after:	1 week
Put mtree test files into a subdirectory.

Kyua 0.11 points TMPDIR to the test's work directory, and atf_check creates
auxiliary files in TMPDIR.  This confuses a couple of mtree tests that were
using the work directory's root to validate the contents of the directory.

Fix the two affected tests by creating an auxiliary directory to use for
the mtree tests.  (Kyua should probably do this on its own; filed bug #133
upstream to take a look at this.)
MFV: Import atf-0.21.
vt(4): Adjust the cursor position after changing the window size

A new terminal_set_cursor() is added: it wraps the existing
teken_set_cursor() function.

In vtbuf_grow(), the cursor position is adjusted at the end of the
function. In vt_change_font(), we call terminal_set_cursor() just after
terminal_set_winsize_blank(), while the terminal is mute.

This fixes a bug where, after loading a kernel video driver which
increases the terminal window size, the cursor remains at its old
position, in other words, in the middle of the display content.

PR:		194421
MFC after:	1 week
Don't prune duplicate services in the expected output from /etc/services on
FreeBSD

Submitted by: pho
Start to allow platforms other than U-Boot to use the FDT code in loader by
moving U-Boot specific code from libfdt.a to a new libuboot_fdt.a. This
needs to be a new library for linking to work correctly.

Differential Revision:	https://reviews.freebsd.org/D1054
Reviewed by:	ian, rpaulo (earlier version)
MFC after:	1 week
Port tests to FreeBSD/Linux

Some of the testcases don't work outside of NetBSD, and the behavior of
ether_aton_r differs between FreeBSD, Linux, and NetBSD, and the calls to the
API need to be massaged for FreeBSD and Linux.

Submitted by: pho
Port lib/libc/net/h_dns_server to FreeBSD

Submitted by: pho
Port lib/libc/sys/t_dup to FreeBSD/Linux

- The requirements differ between FreeBSD/Linux when dealing with oldd/newd
  being equal (both fail with EINVAL, not EBADF)
- Add an EBADF testcase
- Fix compilation issues on clang

In collaboration with: pho
getitimer on FreeBSD returns the last set time instead of the remaining time;
test for that instead

Submitted by: pho
Remove duplicate macro settings (probably due to an SVN merge /faux pas/ on my part.

Spotted by: DES
Approved by:	DES(implicit)
Change the order of the arguments to file_loadraw(). They were swapped
as of r262345 when file_loadraw() was made public and this little detail
got overlooked during porting.

Obtained from:	Juniper Networks, Inc.
Updates to the list of CPUs supported by the amd64 platform

MFC after:	3 days
Skip :sethostname_basic because it messes up the test host's hostname

Convert code from #if defined(__FreeBSD__) to #ifdef __FreeBSD__
Port t_kevent to FreeBSD

Submitted by: pho
Port t_mincore to FreeBSD

Mark :mincore_resid as atf_tc_expect_fail on FreeBSD because of new bug
discovered in running the tests (it succeeded from earlier on in the year to
September/October on FreeBSD, at least)

Submitted by: pho