Remove residual blank line at start of Makefile

This is a residual of the $FreeBSD$ removal.

MFC After: 3 days (though I'll just run the command on the branches)
Sponsored by: Netflix

Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

Retire WITHOUT_CXX option

Several important base system components are written in C++, and the
WITHOUT_CXX option produced a system that was not fully functional.
Just accept this, and remove the op

Retire WITHOUT_CXX option

Several important base system components are written in C++, and the
WITHOUT_CXX option produced a system that was not fully functional.
Just accept this, and remove the option to build without C++ support.

This reverts commit adc3c128c6603054586a993d117e5dd808deac17.

Reviewed by: brooks, kevans, jhb (earlier)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33108

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cddl/*: add a WITH(OUT)_DTRACE option

Add an option to enable/disable DTrace without disabling ZFS. New
architectures such as CHERI may support ZFS before they support DTrace
and the old model of W

cddl/*: add a WITH(OUT)_DTRACE option

Add an option to enable/disable DTrace without disabling ZFS. New
architectures such as CHERI may support ZFS before they support DTrace
and the old model of WITHOUT_CDDL disabling both wasn't helpful.

For compatiblity, the CDDL option remains and WITHOUT_CDDL implies
WITHOUT_DTRACE. WITHOUT_DTRACE also implies WITHOUT_CTF.

As part of this change, largely convert cddl/*/Makefile to using the
more compact SUBDIR.${MK_<FOO>}+= form rather than using intermediate
variables.

Reviewed by: markj
Obtained from: CheriBSD
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D35718

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dtrace: Remove local mips support

Remove the stub pid probe and all the build glue.

Reviewed by: imp, jhb
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D35541

build: remove LIBPTHREAD/LIBTHR build options

WITHOUT_LIBTHR has been broken for a little over five years now, since the
xz 5.2.0 update introduced a hard liblzma dependency on libthr, and building

build: remove LIBPTHREAD/LIBTHR build options

WITHOUT_LIBTHR has been broken for a little over five years now, since the
xz 5.2.0 update introduced a hard liblzma dependency on libthr, and building
a useful system without threading support is becoming increasingly more
difficult.

Additionally, in the five plus years that it's been broken more reverse
dependencies have cropped up in libzstd, libsqlite3, and libcrypto (among
others) that make it more and more difficult to reconcile the effort needed
to fix these options.

Remove the broken options.

PR: 252760
Reviewed by: brooks, emaste, kib
Differential Revision: https://reviews.freebsd.org/D28263

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Introduce dwatch(1) as a tool for making DTrace more useful

Reviewed by: markj, gnn, bdrewery (earlier version)
Relnotes: yes
Sponsored by: Smule, Inc.
Differential Revision: https://reviews.freebsd

Introduce dwatch(1) as a tool for making DTrace more useful

Reviewed by: markj, gnn, bdrewery (earlier version)
Relnotes: yes
Sponsored by: Smule, Inc.
Differential Revision: https://reviews.freebsd.org/D10006

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Merge ^/head r321383 through r322397.

MFhead@r321970

MFhead@r321912

Convert traditional ${MK_TESTS} conditional idiom for including test
directories to SUBDIR.${MK_TESTS} idiom

This is being done to pave the way for future work (and homogenity) in
^/projects/make-ch

Convert traditional ${MK_TESTS} conditional idiom for including test
directories to SUBDIR.${MK_TESTS} idiom

This is being done to pave the way for future work (and homogenity) in
^/projects/make-check-sandbox .

No functional change intended.

MFC after: 1 weeks

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zfsd(8), the ZFS fault management daemon

Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.

cddl/usr.sbin/zfs

zfsd(8), the ZFS fault management daemon

Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.

cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests

cddl/usr.sbin/Makefile
Add zfsd to the build

lib/libdevdctl
A C++ library that helps devd clients process events

lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.

etc/defaults/rc.conf
By default, set zfsd_enable to NO

etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files

etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests

etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.

etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:

It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.

It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.

vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.

Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564

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Add initial DTrace support for RISC-V.

Sponsored by: DARPA, AFRL
Sponsored by: HEIF5

Remove the old version of the DTraceToolkit from the source tree.
The DTraceToolkit is part of the Open DTrace effort and is supported
on FreeBSD as a port (sysutils/DTraceToolkit) which has been upd

Remove the old version of the DTraceToolkit from the source tree.
The DTraceToolkit is part of the Open DTrace effort and is supported
on FreeBSD as a port (sysutils/DTraceToolkit) which has been updated
to properly track toolkit development upstream.

Sponsored by: DARPA, AFRL

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MFH r289384-r293170

Sponsored by: The FreeBSD Foundation

Catch up with head.

Fully connect cddl/usr.sbin/plockstat.

There seems to be no reason to keep this so private.

Also add missing optional MK_CDDL files.

Sponsored by: EMC / Isilon Storage Division

Merge from head

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r284737 through r285152.

First cut of DTrace for AArch64.

Reviewed by: andrew, emaste
Sponsored by: ARM Limited
Differential Revision: https://reviews.freebsd.org/D2738

Catch up with HEAD (r280229-r284686).

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head

Build cddl/{sbin,usr.bin,usr.sbin} in parallel as all of the applications are
freestanding (they require libraries build via make libraries in buildworld)

MFC after: 1 week
Sponsored by: EMC / Isilo

Build cddl/{sbin,usr.bin,usr.sbin} in parallel as all of the applications are
freestanding (they require libraries build via make libraries in buildworld)

MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division

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