Ensure that soft updates are not enabled by default when using mdmfs(8)

When soft updates began being enabled by default that change carried
over to mdmfs(8) which does not want or need them. This f

Ensure that soft updates are not enabled by default when using mdmfs(8)

When soft updates began being enabled by default that change carried
over to mdmfs(8) which does not want or need them. This fix ensures
that they are only enabled in mdmfs(8) when requested with the -U flag.

Reported by: Ivan Rozhuk
Tested by: Ivan Rozhuk
PR: 279308
MFC after: 1 week

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Remove gbde support from swapon(8)

include: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a pe

include: Remove ancient SCCS tags.

Remove ancient SCCS tags from the tree, automated scripting, with two
minor fixup to keep things compiling. All the common forms in the tree
were removed with a perl script.

Sponsored by: Netflix

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Remove $FreeBSD$: one-line .h pattern

Remove /^\s*\*+\s*\$FreeBSD\$.*$\n/

include: Migrate from COMPAT_32BIT to generic COMPAT_libcompat

See commit 8fad2cda93c7 ("bsd.compat.mk: Provide new CPP and sub-make
variables") for the context behind this change.

Reviewed by: ema

include: Migrate from COMPAT_32BIT to generic COMPAT_libcompat

See commit 8fad2cda93c7 ("bsd.compat.mk: Provide new CPP and sub-make
variables") for the context behind this change.

Reviewed by: emaste, brooks, jhb
Differential Revision: https://reviews.freebsd.org/D40924

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Add search of LOCALBASE/share/calendar for calendars supplied by a port.

Calendar files in LOCALBASE override similarily named ones in the base
system. This could easily be changed if the base syste

Add search of LOCALBASE/share/calendar for calendars supplied by a port.

Calendar files in LOCALBASE override similarily named ones in the base
system. This could easily be changed if the base system calendars should
have precedence, but it could lead to a violation of POLA since then the
port's files were ignored unless those in base have been deleted.

There was no definition of _PATH_LOCALBASE in paths.h, but verbatim uses
of /usr/local existed for _PATH_DEFPATH. Use _PATH_LOCALBASE here to ease
a consistent modification of this prefix.

Reviewed by: imp, pfg
Differential Revision: https://reviews.freebsd.org/D26882

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Merge ^/head r325999 through r326131.

include: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier

include: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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libkvm: support access to vmm guest memory, allow writes to fwmem and vmm

This change consists of two parts:
- allow libkvm to recognize /dev/vmm/* character devices as devices that
provide access

libkvm: support access to vmm guest memory, allow writes to fwmem and vmm

This change consists of two parts:
- allow libkvm to recognize /dev/vmm/* character devices as devices that
provide access to the physical memory of a system (similarly to /dev/fwmem*)
- allow libkvm to recognize that /dev/vmm/* and /dev/fwmem* devices provide
access to the physical memory of live remote systems and, thus, the memory
is writable

As a result, it should be possible to run commands like
$ kgdb -w /path/to/kernel /dev/fwmem0.0
$ kgdb /path/to/kernel /dev/vmm/guest

Reviewed by: kib, jhb
MFC after: 2 weeks
Relnotes: yes
Sponsored by: Panzura
Differential Revision: https://reviews.freebsd.org/D8679

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MFH

Sponsored by: The FreeBSD Foundation

Implement suggestion by jhb@ to have _PATH_FIRMWARE instead of hard
coding it to be "/usr/share/firmware".

MFH @r294567

Merge ^/head r293175 through r293279.

MFH

Sponsored by: The FreeBSD Foundation

Add sbin and /usr/local directories to _PATH_DEFPATH.

Set _PATH_DEFPATH to
/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin. This is the
path in the default class in the default /etc/log

Add sbin and /usr/local directories to _PATH_DEFPATH.

Set _PATH_DEFPATH to
/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin. This is the
path in the default class in the default /etc/login.conf,
excluding ~/bin which would not be expanded properly in a string
constant.

For normal logins, _PATH_DEFPATH is overridden by /etc/login.conf,
~/.login_conf or shell startup files. _PATH_DEFPATH is still used as a
default by execlp(), execvp(), posix_spawnp() and sh if PATH is not set, and
by cron. Especially the latter is a common trap (most recently in PR
204813).

PR: 204813
Reviewed by: secteam (delphij), alfred

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Merge head r233826 through r256722.

Merge head@256284

IFC @256277

Approved by: ken (mentor)

MFC - tracking update.

IFC @ r255692

Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.

Assume that the -f argument is /dev/gpioc0 if it is not passed.

hrs@ provided this verison of the patch and showed me where all the needed
changes were to be made outside of gpioctl.c

Approved by:

Assume that the -f argument is /dev/gpioc0 if it is not passed.

hrs@ provided this verison of the patch and showed me where all the needed
changes were to be made outside of gpioctl.c

Approved by: re (hrs)
MFC after: 2 weeks

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Merge from head

IFC @ r254014

IFC @253398

IFC @ r252288