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/

dtrace: Add WITH_DTRACE_ASAN

See commit 4ae6991228105eb34989c870194ae7b0a1e23be4. This version of
the commit avoids inadvertently changing SHLIBDIR for libdtrace.so.

dtrace: Revert the addition of WITH_DTRACE_ASAN

The follow-up fix triggers a lib32 build failure, revert everything
until the problem is addressed.

dtrace: Add WITH_DTRACE_ASAN

This option is a blanket for all the DTrace-related software. The option
when enabled passes in -fsanitize=address -fsanitize=undeifned, enabling
ASAN and UBSAN in the f

dtrace: Add WITH_DTRACE_ASAN

This option is a blanket for all the DTrace-related software. The option
when enabled passes in -fsanitize=address -fsanitize=undeifned, enabling
ASAN and UBSAN in the following components:

- libdtrace
- dtrace(1)
- lockstat(1)
- plockstat(1)

The option defaults to "no" and is intended as a developer aid.

Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D41157

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pkgbase: Put dtrace in its own package

While dtrace is usefull some people might not want it.

Differential Revision: https://reviews.freebsd.org/D30752
Sponsored by: Diablotin Systems

Remove -I flag for include path that doesn't exist

Found this while trying to get macOS bootstrap to work again after OpenZFS merge.

Reviewed By: #zfs, freqlabs
Differential Revision: https://revie

Remove -I flag for include path that doesn't exist

Found this while trying to get macOS bootstrap to work again after OpenZFS merge.

Reviewed By: #zfs, freqlabs
Differential Revision: https://reviews.freebsd.org/D26192

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MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

Merge OpenZFS support in to HEAD.

The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would a

Merge OpenZFS support in to HEAD.

The primary benefit is maintaining a completely shared
code base with the community allowing FreeBSD to receive
new features sooner and with less effort.

I would advise against doing 'zpool upgrade'
or creating indispensable pools using new
features until this change has had a month+
to soak.

Work on merging FreeBSD support in to what was
at the time "ZFS on Linux" began in August 2018.
I first publicly proposed transitioning FreeBSD
to (new) OpenZFS on December 18th, 2018. FreeBSD
support in OpenZFS was finally completed in December
2019. A CFT for downstreaming OpenZFS support in
to FreeBSD was first issued on July 8th. All issues
that were reported have been addressed or, for
a couple of less critical matters there are
pull requests in progress with OpenZFS. iXsystems
has tested and dogfooded extensively internally.
The TrueNAS 12 release is based on OpenZFS with
some additional features that have not yet made
it upstream.

Improvements include:
project quotas, encrypted datasets,
allocation classes, vectorized raidz,
vectorized checksums, various command line
improvements, zstd compression.

Thanks to those who have helped along the way:
Ryan Moeller, Allan Jude, Zack Welch, and many
others.

Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D25872

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cddl: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

While here, remove bogus CFLAGS which look for headers in cddl/lib/libumem.
There aren't any

cddl: normalize paths using SRCTOP-relative paths or :H when possible

This simplifies make logic/output

While here, remove bogus CFLAGS which look for headers in cddl/lib/libumem.
There aren't any source files there (just Makefiles)

MFC after: 1 month
Sponsored by: Dell EMC Isilon

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Catch up with HEAD (r280229-r284686).

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head

Reduce overlinking.
Because of libdtrace there is still a bit a overlinking but nothing we can deal
with easily

Add a man page for plockstat.

Sponsored by: The FreeBSD Foundation

Port plockstat to FreeBSD. This will be connected to the build later.

Sponsored by: The FreeBSD Foundation