MFC r330104: MFV r330102: ntp 4.2.8p11

MFC r314451,r314452,r314453,r314456,r314457,r314458,r314459,r314460,r314461,r314462,r314464,r314466,r314468,r314470,r314472,r314478:

r314451:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ar5523.bin.uu in the make target
with ${.ALLSRC} .

r314452:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

r314453:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

r314456:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314457:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ${RPCDIR}/ypupdate_prot.x in
the make targets with ${.ALLSRC} .

r314458:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314459:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314460:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314461:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314462:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

The SRCTOP conversion simplifies pathing in make/displayed output.

Also, while here, change a hardcoded path to ${RPCDIR}/ypxfrd.x in
the make targets with ${.ALLSRC} .

r314464:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314466:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314468:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

Also, use :H where possible/sensical to manipulate .CURDIR-relative paths

This simplifies pathing in make/displayed output.

r314470:

Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones

This simplifies pathing in make/displayed output.

r314472:

Simplify/improve idioms in usr.sbin/ntp Makefiles

- Use SRCTOP-relative paths to other directories instead of
.CURDIR-relative ones. This simplifies pathing in make/displayed output.
- Also, use :H where possible/sensical to manipulate .CURDIR-relative
paths
- Remove superfluous bsd.own.mk .includes which are already handled via
src.opts.mk .includes

r314478:

Simplify idioms in Makefiles further

- Use SRCTOP-relative paths instead of .CURDIR-relative ones where possible
- Use :H to manipulate .CURDIR in areas instead of ..-relative paths.

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFV ntp 4.2.8p1 (r258945, r275970, r276091, r276092, r276093, r278284)

Thanks to roberto for providing pointers to wedge this into HEAD.

Approved by: roberto

Convert usr.sbin to LIBADD
Reduce overlinking

Revert r267233 for now. PIE support needs to be reworked.

1. 50+% of NO_PIE use is fixed by adding -fPIC to INTERNALLIB and other
build-only utility libraries.
2. Another 40% is fixed by generating _pic.a variants of various libraries.
3. Some of the NO_PIE use is a bit absurd as it is disabling PIE (and ASLR)
where it never would work anyhow, such as csu or loader. This suggests
there may be better ways of adding support to the tree. Many of these
cases can be fixed such that -fPIE will work but there is really no
reason to have it in those cases.
4. Some of the uses are working around hacks done to some Makefiles that are
really building libraries but have been using bsd.prog.mk because the code
is cleaner. Had they been using bsd.lib.mk then NO_PIE would not have
been needed.

We likely do want to enable PIE by default (opt-out) for non-tree consumers
(such as ports). For in-tree though we probably want to only enable PIE
(opt-in) for common attack targets such as remote service daemons and setuid
utilities. This is also a great performance compromise since ASLR is expected
to reduce performance. As such it does not make sense to enable it in all
utilities such as ls(1) that have little benefit to having it enabled.

Reported by: kib

In preparation for ASLR [1] support add WITH_PIE to support building with -fPIE.

This is currently an opt-in build flag. Once ASLR support is ready and stable
it should changed to opt-out and be enabled by default along with ASLR.

Each application Makefile uses opt-out to ensure that ASLR will be enabled by
default in new directories when the system is compiled with PIE/ASLR. [2]

Mark known build failures as NO_PIE for now.

The only known runtime failure was rtld.

[1] http://www.bsdcan.org/2014/schedule/events/452.en.html
Submitted by: Shawn Webb <lattera@gmail.com>
Discussed between: des@ and Shawn Webb [2]

NO_MAN= has been deprecated in favor of MAN= for some time, go ahead
and finish the job. ncurses is now the only Makefile in the tree that
uses it since it wasn't a simple mechanical change, and will be
addressed in a future commit.

Let bsd.prog.mk set SRCS and MAN to their default values.

Start the dreaded NOFOO -> NO_FOO conversion.

OK'ed by: core

For variables that are only checked with defined(), don't provide
any fake value.

Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.

- remove trace of libkvm. It is not used at all.
- reorganise the Makefiles: the order of variables was not the usual one.

Explained gently by: bde

Please welcome the brand new ntp4 daemon & utilities in the FreeBSD tree.
This is the second part of the commit (the third -- link in usr.sbin/Makefile)
will be done after a more complete review by phk & obrien.

NOTE: the number of drivers included in the default configuration is very
minimal, mainly local clocks and the one I use RAWDCF. Anyone wanting to
have a more complete version will find recompilation very easy.

It builds and runs on both alpha & i386. It also does survive "make world".

Reviewed by: phk, obrien (partly)